Initial import of modified Linux 2.6.28 tree

Original upstream URL:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git | branch linux-2.6.28.y

104 files changed, 80327 insertions, 0 deletions

diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
new file mode 100644
index 0000000..71f99f2
--- /dev/null
+++ b/drivers/hwmon/Kconfig
@@ -0,0 +1,939 @@
+#
+# Hardware monitoring chip drivers configuration
+#
+
+menuconfig HWMON
+	tristate "Hardware Monitoring support"
+	depends on HAS_IOMEM
+	default y
+	help
+	  Hardware monitoring devices let you monitor the hardware health
+	  of a system. Most modern motherboards include such a device. It
+	  can include temperature sensors, voltage sensors, fan speed
+	  sensors and various additional features such as the ability to
+	  control the speed of the fans.  If you want this support you
+	  should say Y here and also to the specific driver(s) for your
+	  sensors chip(s) below.
+
+	  To find out which specific driver(s) you need, use the
+	  sensors-detect script from the lm_sensors package.  Read
+	  <file:Documentation/hwmon/userspace-tools> for details.
+
+	  This support can also be built as a module.  If so, the module
+	  will be called hwmon.
+
+if HWMON
+
+config HWMON_VID
+	tristate
+	default n
+
+config SENSORS_ABITUGURU
+	tristate "Abit uGuru (rev 1 & 2)"
+	depends on X86 && EXPERIMENTAL
+	help
+	  If you say yes here you get support for the sensor part of the first
+	  and second revision of the Abit uGuru chip. The voltage and frequency
+	  control parts of the Abit uGuru are not supported. The Abit uGuru
+	  chip can be found on Abit uGuru featuring motherboards (most modern
+	  Abit motherboards from before end 2005). For more info and a list
+	  of which motherboards have which revision see
+	  Documentation/hwmon/abituguru
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called abituguru.
+
+config SENSORS_ABITUGURU3
+	tristate "Abit uGuru (rev 3)"
+	depends on X86 && EXPERIMENTAL
+	help
+	  If you say yes here you get support for the sensor part of the
+	  third revision of the Abit uGuru chip. Only reading the sensors
+	  and their settings is supported. The third revision of the Abit
+	  uGuru chip can be found on recent Abit motherboards (since end
+	  2005). For more info and a list of which motherboards have which
+	  revision see Documentation/hwmon/abituguru3
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called abituguru3.
+
+config SENSORS_AD7414
+	tristate "Analog Devices AD7414"
+	depends on I2C && EXPERIMENTAL
+	help
+	  If you say yes here you get support for the Analog Devices
+	  AD7414 temperature monitoring chip.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called ad7414.
+
+config SENSORS_AD7418
+	tristate "Analog Devices AD7416, AD7417 and AD7418"
+	depends on I2C && EXPERIMENTAL
+	help
+	  If you say yes here you get support for the Analog Devices
+	  AD7416, AD7417 and AD7418 temperature monitoring chips.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called ad7418.
+
+config SENSORS_ADCXX
+	tristate "National Semiconductor ADCxxxSxxx"
+	depends on SPI_MASTER && EXPERIMENTAL
+	help
+	  If you say yes here you get support for the National Semiconductor
+	  ADC<bb><c>S<sss> chip family, where
+	  * bb  is the resolution in number of bits (8, 10, 12)
+	  * c   is the number of channels (1, 2, 4, 8)
+	  * sss is the maximum conversion speed (021 for 200 kSPS, 051 for 500
+	    kSPS and 101 for 1 MSPS)
+
+	  Examples : ADC081S101, ADC124S501, ...
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called adcxx.
+
+config SENSORS_ADM1021
+	tristate "Analog Devices ADM1021 and compatibles"
+	depends on I2C
+	help
+	  If you say yes here you get support for Analog Devices ADM1021
+	  and ADM1023 sensor chips and clones: Maxim MAX1617 and MAX1617A,
+	  Genesys Logic GL523SM, National Semiconductor LM84, TI THMC10,
+	  and the XEON processor built-in sensor.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called adm1021.
+
+config SENSORS_ADM1025
+	tristate "Analog Devices ADM1025 and compatibles"
+	depends on I2C
+	select HWMON_VID
+	help
+	  If you say yes here you get support for Analog Devices ADM1025
+	  and Philips NE1619 sensor chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called adm1025.
+
+config SENSORS_ADM1026
+	tristate "Analog Devices ADM1026 and compatibles"
+	depends on I2C && EXPERIMENTAL
+	select HWMON_VID
+	help
+	  If you say yes here you get support for Analog Devices ADM1026
+	  sensor chip.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called adm1026.
+
+config SENSORS_ADM1029
+	tristate "Analog Devices ADM1029"
+	depends on I2C && EXPERIMENTAL
+	help
+	  If you say yes here you get support for Analog Devices ADM1029
+	  sensor chip.
+	  Very rare chip, please let us know you use it.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called adm1029.
+
+config SENSORS_ADM1031
+	tristate "Analog Devices ADM1031 and compatibles"
+	depends on I2C && EXPERIMENTAL
+	help
+	  If you say yes here you get support for Analog Devices ADM1031
+	  and ADM1030 sensor chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called adm1031.
+
+config SENSORS_ADM9240
+	tristate "Analog Devices ADM9240 and compatibles"
+	depends on I2C
+	select HWMON_VID
+	help
+	  If you say yes here you get support for Analog Devices ADM9240,
+	  Dallas DS1780, National Semiconductor LM81 sensor chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called adm9240.
+
+config SENSORS_ADT7462
+	tristate "Analog Devices ADT7462"
+	depends on I2C && EXPERIMENTAL
+	help
+	  If you say yes here you get support for the Analog Devices
+	  ADT7462 temperature monitoring chips.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called adt7462.
+
+config SENSORS_ADT7470
+	tristate "Analog Devices ADT7470"
+	depends on I2C && EXPERIMENTAL
+	help
+	  If you say yes here you get support for the Analog Devices
+	  ADT7470 temperature monitoring chips.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called adt7470.
+
+config SENSORS_ADT7473
+	tristate "Analog Devices ADT7473"
+	depends on I2C && EXPERIMENTAL
+	help
+	  If you say yes here you get support for the Analog Devices
+	  ADT7473 temperature monitoring chips.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called adt7473.
+
+config SENSORS_K8TEMP
+	tristate "AMD Athlon64/FX or Opteron temperature sensor"
+	depends on X86 && PCI && EXPERIMENTAL
+	help
+	  If you say yes here you get support for the temperature
+	  sensor(s) inside your CPU. Supported is whole AMD K8
+	  microarchitecture. Please note that you will need at least
+	  lm-sensors 2.10.1 for proper userspace support.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called k8temp.
+
+config SENSORS_AMS
+	tristate "Apple Motion Sensor driver"
+	depends on PPC_PMAC && !PPC64 && INPUT && ((ADB_PMU && I2C = y) || (ADB_PMU && !I2C) || I2C) && EXPERIMENTAL
+	select INPUT_POLLDEV
+	help
+	  Support for the motion sensor included in PowerBooks. Includes
+	  implementations for PMU and I2C.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called ams.
+
+config SENSORS_AMS_PMU
+	bool "PMU variant"
+	depends on SENSORS_AMS && ADB_PMU
+	default y
+	help
+	  PMU variant of motion sensor, found in late 2005 PowerBooks.
+
+config SENSORS_AMS_I2C
+	bool "I2C variant"
+	depends on SENSORS_AMS && I2C
+	default y
+	help
+	  I2C variant of motion sensor, found in early 2005 PowerBooks and
+	  iBooks.
+
+config SENSORS_ASB100
+	tristate "Asus ASB100 Bach"
+	depends on X86 && I2C && EXPERIMENTAL
+	select HWMON_VID
+	help
+	  If you say yes here you get support for the ASB100 Bach sensor
+	  chip found on some Asus mainboards.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called asb100.
+
+config SENSORS_ATXP1
+	tristate "Attansic ATXP1 VID controller"
+	depends on I2C && EXPERIMENTAL
+	select HWMON_VID
+	help
+	  If you say yes here you get support for the Attansic ATXP1 VID
+	  controller.
+
+	  If your board have such a chip, you are able to control your CPU
+	  core and other voltages.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called atxp1.
+
+config SENSORS_DS1621
+	tristate "Dallas Semiconductor DS1621 and DS1625"
+	depends on I2C
+	help
+	  If you say yes here you get support for Dallas Semiconductor
+	  DS1621 and DS1625 sensor chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called ds1621.
+
+config SENSORS_I5K_AMB
+	tristate "FB-DIMM AMB temperature sensor on Intel 5000 series chipsets"
+	depends on PCI && EXPERIMENTAL
+	help
+	  If you say yes here you get support for FB-DIMM AMB temperature
+	  monitoring chips on systems with the Intel 5000 series chipset.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called i5k_amb.
+
+config SENSORS_F71805F
+	tristate "Fintek F71805F/FG, F71806F/FG and F71872F/FG"
+	depends on EXPERIMENTAL
+	help
+	  If you say yes here you get support for hardware monitoring
+	  features of the Fintek F71805F/FG, F71806F/FG and F71872F/FG
+	  Super-I/O chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called f71805f.
+
+config SENSORS_F71882FG
+	tristate "Fintek F71882FG and F71883FG"
+	depends on EXPERIMENTAL
+	help
+	  If you say yes here you get support for hardware monitoring
+	  features of the Fintek F71882FG and F71883FG Super-I/O chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called f71882fg.
+
+config SENSORS_F75375S
+	tristate "Fintek F75375S/SP and F75373";
+	depends on I2C && EXPERIMENTAL
+	help
+	  If you say yes here you get support for hardware monitoring
+	  features of the Fintek F75375S/SP and F75373
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called f75375s.
+
+config SENSORS_FSCHER
+	tristate "FSC Hermes"
+	depends on X86 && I2C
+	help
+	  If you say yes here you get support for Fujitsu Siemens
+	  Computers Hermes sensor chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called fscher.
+
+config SENSORS_FSCPOS
+	tristate "FSC Poseidon"
+	depends on X86 && I2C
+	help
+	  If you say yes here you get support for Fujitsu Siemens
+	  Computers Poseidon sensor chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called fscpos.
+
+config SENSORS_FSCHMD
+	tristate "FSC Poseidon, Scylla, Hermes, Heimdall and Heracles"
+	depends on X86 && I2C && EXPERIMENTAL
+	help
+	  If you say yes here you get support for various Fujitsu Siemens
+	  Computers sensor chips.
+
+	  This is a new merged driver for FSC sensor chips which is intended
+	  as a replacment for the fscpos, fscscy and fscher drivers and adds
+	  support for several other FCS sensor chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called fschmd.
+
+config SENSORS_GL518SM
+	tristate "Genesys Logic GL518SM"
+	depends on I2C
+	help
+	  If you say yes here you get support for Genesys Logic GL518SM
+	  sensor chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called gl518sm.
+
+config SENSORS_GL520SM
+	tristate "Genesys Logic GL520SM"
+	depends on I2C
+	select HWMON_VID
+	help
+	  If you say yes here you get support for Genesys Logic GL520SM
+	  sensor chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called gl520sm.
+
+config SENSORS_CORETEMP
+	tristate "Intel Core (2) Duo/Solo temperature sensor"
+	depends on X86 && EXPERIMENTAL
+	help
+	  If you say yes here you get support for the temperature
+	  sensor inside your CPU. Supported all are all known variants
+	  of Intel Core family.
+
+config SENSORS_IBMAEM
+	tristate "IBM Active Energy Manager temperature/power sensors and control"
+	select IPMI_SI
+	depends on IPMI_HANDLER
+	help
+	  If you say yes here you get support for the temperature and
+	  power sensors and capping hardware in various IBM System X
+	  servers that support Active Energy Manager.  This includes
+	  the x3350, x3550, x3650, x3655, x3755, x3850 M2, x3950 M2,
+	  and certain HS2x/LS2x/QS2x blades.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called ibmaem.
+
+config SENSORS_IBMPEX
+	tristate "IBM PowerExecutive temperature/power sensors"
+	select IPMI_SI
+	depends on IPMI_HANDLER
+	help
+	  If you say yes here you get support for the temperature and
+	  power sensors in various IBM System X servers that support
+	  PowerExecutive.  So far this includes the x3350, x3550, x3650,
+	  x3655, and x3755; the x3800, x3850, and x3950 models that have
+	  PCI Express; and some of the HS2x, LS2x, and QS2x blades.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called ibmpex.
+
+config SENSORS_IT87
+	tristate "ITE IT87xx and compatibles"
+	select HWMON_VID
+	help
+	  If you say yes here you get support for ITE IT8705F, IT8712F,
+	  IT8716F, IT8718F and IT8726F sensor chips, and the SiS960 clone.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called it87.
+
+config SENSORS_LM63
+	tristate "National Semiconductor LM63"
+	depends on I2C
+	help
+	  If you say yes here you get support for the National Semiconductor
+	  LM63 remote diode digital temperature sensor with integrated fan
+	  control.  Such chips are found on the Tyan S4882 (Thunder K8QS Pro)
+	  motherboard, among others.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called lm63.
+
+config SENSORS_LM70
+	tristate "National Semiconductor LM70"
+	depends on SPI_MASTER && EXPERIMENTAL
+	help
+	  If you say yes here you get support for the National Semiconductor
+	  LM70 digital temperature sensor chip.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called lm70.
+
+config SENSORS_LM75
+	tristate "National Semiconductor LM75 and compatibles"
+	depends on I2C
+	help
+	  If you say yes here you get support for one common type of
+	  temperature sensor chip, with models including:
+
+		- Dallas Semiconductor DS75 and DS1775
+		- Maxim MAX6625 and MAX6626
+		- Microchip MCP980x
+		- National Semiconductor LM75
+		- NXP's LM75A
+		- ST Microelectronics STDS75
+		- TelCom (now Microchip) TCN75
+		- Texas Instruments TMP100, TMP101, TMP75, TMP175, TMP275
+
+	  This driver supports driver model based binding through board
+	  specific I2C device tables.
+
+	  It also supports the "legacy" style of driver binding.  To use
+	  that with some chips which don't replicate LM75 quirks exactly,
+	  you may need the "force" module parameter.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called lm75.
+
+config SENSORS_LM77
+	tristate "National Semiconductor LM77"
+	depends on I2C
+	help
+	  If you say yes here you get support for National Semiconductor LM77
+	  sensor chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called lm77.
+
+config SENSORS_LM78
+	tristate "National Semiconductor LM78 and compatibles"
+	depends on I2C
+	select HWMON_VID
+	help
+	  If you say yes here you get support for National Semiconductor LM78,
+	  LM78-J and LM79.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called lm78.
+
+config SENSORS_LM80
+	tristate "National Semiconductor LM80"
+	depends on I2C && EXPERIMENTAL
+	help
+	  If you say yes here you get support for National Semiconductor
+	  LM80 sensor chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called lm80.
+
+config SENSORS_LM83
+	tristate "National Semiconductor LM83 and compatibles"
+	depends on I2C
+	help
+	  If you say yes here you get support for National Semiconductor
+	  LM82 and LM83 sensor chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called lm83.
+
+config SENSORS_LM85
+	tristate "National Semiconductor LM85 and compatibles"
+	depends on I2C && EXPERIMENTAL
+	select HWMON_VID
+	help
+	  If you say yes here you get support for National Semiconductor LM85
+	  sensor chips and clones: ADT7463, EMC6D100, EMC6D102 and ADM1027.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called lm85.
+
+config SENSORS_LM87
+	tristate "National Semiconductor LM87 and compatibles"
+	depends on I2C
+	select HWMON_VID
+	help
+	  If you say yes here you get support for National Semiconductor LM87
+	  and Analog Devices ADM1024 sensor chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called lm87.
+
+config SENSORS_LM90
+	tristate "National Semiconductor LM90 and compatibles"
+	depends on I2C
+	help
+	  If you say yes here you get support for National Semiconductor LM90,
+	  LM86, LM89 and LM99, Analog Devices ADM1032 and ADT7461, and Maxim
+	  MAX6646, MAX6647, MAX6649, MAX6657, MAX6658, MAX6659, MAX6680 and
+	  MAX6681 sensor chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called lm90.
+
+config SENSORS_LM92
+	tristate "National Semiconductor LM92 and compatibles"
+	depends on I2C
+	help
+	  If you say yes here you get support for National Semiconductor LM92
+	  and Maxim MAX6635 sensor chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called lm92.
+
+config SENSORS_LM93
+	tristate "National Semiconductor LM93 and compatibles"
+	depends on I2C
+	select HWMON_VID
+	help
+	  If you say yes here you get support for National Semiconductor LM93
+	  sensor chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called lm93.
+
+config SENSORS_MAX127
+	tristate "Maxim MAX127 sensor chip"
+	depends on I2C
+	help
+	  If you say yes here you get support for the MAX127,
+	  5 channel, 12-bit DAC sensor chip.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called max127.
+
+config SENSORS_MAX1111
+	tristate "Maxim MAX1111 Multichannel, Serial 8-bit ADC chip"
+	depends on SPI_MASTER
+	help
+	  Say y here to support Maxim's MAX1111 ADC chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called max1111.
+
+config SENSORS_MAX1619
+	tristate "Maxim MAX1619 sensor chip"
+	depends on I2C
+	help
+	  If you say yes here you get support for MAX1619 sensor chip.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called max1619.
+
+config SENSORS_MAX6650
+	tristate "Maxim MAX6650 sensor chip"
+	depends on I2C && EXPERIMENTAL
+	help
+	  If you say yes here you get support for the MAX6650 / MAX6651
+	  sensor chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called max6650.
+
+config SENSORS_PC87360
+	tristate "National Semiconductor PC87360 family"
+	select HWMON_VID
+	help
+	  If you say yes here you get access to the hardware monitoring
+	  functions of the National Semiconductor PC8736x Super-I/O chips.
+	  The PC87360, PC87363 and PC87364 only have fan monitoring and
+	  control.  The PC87365 and PC87366 additionally have voltage and
+	  temperature monitoring.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called pc87360.
+
+config SENSORS_PC87427
+	tristate "National Semiconductor PC87427"
+	depends on EXPERIMENTAL
+	help
+	  If you say yes here you get access to the hardware monitoring
+	  functions of the National Semiconductor PC87427 Super-I/O chip.
+	  The chip has two distinct logical devices, one for fan speed
+	  monitoring and control, and one for voltage and temperature
+	  monitoring. Only fan speed monitoring is supported right now.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called pc87427.
+
+config SENSORS_SIS5595
+	tristate "Silicon Integrated Systems Corp. SiS5595"
+	depends on PCI
+	help
+	  If you say yes here you get support for the integrated sensors in
+	  SiS5595 South Bridges.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called sis5595.
+
+config SENSORS_DME1737
+	tristate "SMSC DME1737, SCH311x and compatibles"
+	depends on I2C && EXPERIMENTAL
+	select HWMON_VID
+	help
+	  If you say yes here you get support for the hardware monitoring
+	  and fan control features of the SMSC DME1737, SCH311x, SCH5027, and
+	  Asus A8000 Super-I/O chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called dme1737.
+
+config SENSORS_SMSC47M1
+	tristate "SMSC LPC47M10x and compatibles"
+	help
+	  If you say yes here you get support for the integrated fan
+	  monitoring and control capabilities of the SMSC LPC47B27x,
+	  LPC47M10x, LPC47M112, LPC47M13x, LPC47M14x, LPC47M15x,
+	  LPC47M192, LPC47M292 and LPC47M997 chips.
+
+	  The temperature and voltage sensor features of the LPC47M15x,
+	  LPC47M192, LPC47M292 and LPC47M997 are supported by another
+	  driver, select also "SMSC LPC47M192 and compatibles" below for
+	  those.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called smsc47m1.
+
+config SENSORS_SMSC47M192
+	tristate "SMSC LPC47M192 and compatibles"
+	depends on I2C && EXPERIMENTAL
+	select HWMON_VID
+	help
+	  If you say yes here you get support for the temperature and
+	  voltage sensors of the SMSC LPC47M192, LPC47M15x, LPC47M292
+	  and LPC47M997 chips.
+
+	  The fan monitoring and control capabilities of these chips
+	  are supported by another driver, select
+	  "SMSC LPC47M10x and compatibles" above. You need both drivers
+	  if you want fan control and voltage/temperature sensor support.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called smsc47m192.
+
+config SENSORS_SMSC47B397
+	tristate "SMSC LPC47B397-NC"
+	depends on EXPERIMENTAL
+	help
+	  If you say yes here you get support for the SMSC LPC47B397-NC
+	  sensor chip.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called smsc47b397.
+
+config SENSORS_ADS7828
+	tristate "Texas Instruments ADS7828"
+	depends on I2C
+	help
+	  If you say yes here you get support for Texas Instruments ADS7828
+	  12-bit 8-channel ADC device.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called ads7828.
+
+config SENSORS_THMC50
+	tristate "Texas Instruments THMC50 / Analog Devices ADM1022"
+	depends on I2C && EXPERIMENTAL
+	help
+	  If you say yes here you get support for Texas Instruments THMC50
+	  sensor chips and clones: the Analog Devices ADM1022.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called thmc50.
+
+config SENSORS_VIA686A
+	tristate "VIA686A"
+	depends on PCI
+	help
+	  If you say yes here you get support for the integrated sensors in
+	  Via 686A/B South Bridges.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called via686a.
+
+config SENSORS_VT1211
+	tristate "VIA VT1211"
+	depends on EXPERIMENTAL
+	select HWMON_VID
+	help
+	  If you say yes here then you get support for hardware monitoring
+	  features of the VIA VT1211 Super-I/O chip.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called vt1211.
+
+config SENSORS_VT8231
+	tristate "VIA VT8231"
+	depends on PCI
+	select HWMON_VID
+	help
+	  If you say yes here then you get support for the integrated sensors
+	  in the VIA VT8231 device.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called vt8231.
+
+config SENSORS_W83781D
+	tristate "Winbond W83781D, W83782D, W83783S, Asus AS99127F"
+	depends on I2C
+	select HWMON_VID
+	help
+	  If you say yes here you get support for the Winbond W8378x series
+	  of sensor chips: the W83781D, W83782D and W83783S, and the similar
+	  Asus AS99127F.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called w83781d.
+
+config SENSORS_W83791D
+	tristate "Winbond W83791D"
+	depends on I2C && EXPERIMENTAL
+	select HWMON_VID
+	help
+	  If you say yes here you get support for the Winbond W83791D chip.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called w83791d.
+
+config SENSORS_W83792D
+	tristate "Winbond W83792D"
+	depends on I2C && EXPERIMENTAL
+	help
+	  If you say yes here you get support for the Winbond W83792D chip.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called w83792d.
+
+config SENSORS_W83793
+	tristate "Winbond W83793"
+	depends on I2C && EXPERIMENTAL
+	select HWMON_VID
+	help
+	  If you say yes here you get support for the Winbond W83793
+	  hardware monitoring chip.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called w83793.
+
+config SENSORS_W83795
+	tristate "Winbond/Nuvoton W83795G/ADG"
+	depends on I2C
+	help
+	  If you say yes here you get support for the Winbond W83795G and
+	  W83795ADG hardware monitoring chip, including manual fan speed
+	  control.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called w83795.
+
+config SENSORS_W83L785TS
+	tristate "Winbond W83L785TS-S"
+	depends on I2C && EXPERIMENTAL
+	help
+	  If you say yes here you get support for the Winbond W83L785TS-S
+	  sensor chip, which is used on the Asus A7N8X, among other
+	  motherboards.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called w83l785ts.
+
+config SENSORS_W83L786NG
+	tristate "Winbond W83L786NG, W83L786NR"
+	depends on I2C && EXPERIMENTAL
+	help
+	  If you say yes here you get support for the Winbond W83L786NG
+	  and W83L786NR sensor chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called w83l786ng.
+
+config SENSORS_W83627HF
+	tristate "Winbond W83627HF, W83627THF, W83637HF, W83687THF, W83697HF"
+	select HWMON_VID
+	help
+	  If you say yes here you get support for the Winbond W836X7 series
+	  of sensor chips: the W83627HF, W83627THF, W83637HF, W83687THF and
+	  W83697HF.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called w83627hf.
+
+config SENSORS_W83627EHF
+	tristate "Winbond W83627EHF/DHG"
+	select HWMON_VID
+	help
+	  If you say yes here you get support for the hardware
+	  monitoring functionality of the Winbond W83627EHF Super-I/O chip.
+
+	  This driver also supports the W83627EHG, which is the lead-free
+	  version of the W83627EHF, and the W83627DHG, which is a similar
+	  chip suited for specific Intel processors that use PECI such as
+	  the Core 2 Duo.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called w83627ehf.
+
+config SENSORS_ULTRA45
+	tristate "Sun Ultra45 PIC16F747"
+	depends on SPARC64
+	help
+	  This driver provides support for the Ultra45 workstation environmental
+	  sensors.
+
+config SENSORS_HDAPS
+	tristate "IBM Hard Drive Active Protection System (hdaps)"
+	depends on INPUT && X86
+	select INPUT_POLLDEV
+	default n
+	help
+	  This driver provides support for the IBM Hard Drive Active Protection
+	  System (hdaps), which provides an accelerometer and other misc. data.
+	  ThinkPads starting with the R50, T41, and X40 are supported.  The
+	  accelerometer data is readable via sysfs.
+
+	  This driver also provides an absolute input class device, allowing
+	  the laptop to act as a pinball machine-esque joystick.
+
+	  If your ThinkPad is not recognized by the driver, please update to latest
+	  BIOS. This is especially the case for some R52 ThinkPads.
+
+	  Say Y here if you have an applicable laptop and want to experience
+	  the awesome power of hdaps.
+
+config SENSORS_LIS3LV02D
+	tristate "STMicroeletronics LIS3LV02Dx three-axis digital accelerometer"
+	depends on ACPI && INPUT
+	default n
+	help
+	  This driver provides support for the LIS3LV02Dx accelerometer. In
+	  particular, it can be found in a number of HP laptops, which have the
+	  "Mobile Data Protection System 3D" or "3D DriveGuard" feature. On such
+	  systems the driver should load automatically (via ACPI). The
+	  accelerometer might also be found in other systems, connected via SPI
+	  or I2C.  The accelerometer data is readable via
+	  /sys/devices/platform/lis3lv02d.
+
+	  This driver also provides an absolute input class device, allowing
+	  the laptop to act as a pinball machine-esque joystick.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called lis3lv02d.
+
+config SENSORS_AST_ADC
+	tristate "ASPEED ADC Controller Driver"
+        depends on ARCH_ASPEED
+	default n
+	help
+          This driver provides support for the ASPEED ADC
+          Controller, which provides an Voltage Sensor.
+
+config SENSORS_AST_PWM_FAN
+        tristate "ASPEED PWM & FAN Tacho Controller Driver"
+        depends on ARCH_ASPEED
+        default n
+        help
+          This driver provides support for the ASPEED PWM & FAN Tacho
+          Controller, which provides an Sensor, fan control.
+
+config SENSORS_FB_PANTHER_PLUS
+	tristate "Facebook Panther+ Microserver Driver"
+	depends on ARCH_ASPEED && I2C
+	default n
+	help
+    This driver provides support for Facebook Panther+ microserver.
+
+	  Say Y here if you run on the BMC which connects to Panther+ microserver
+
+config SENSORS_APPLESMC
+	tristate "Apple SMC (Motion sensor, light sensor, keyboard backlight)"
+	depends on INPUT && X86
+	select NEW_LEDS
+	select LEDS_CLASS
+	select INPUT_POLLDEV
+	default n
+	help
+	  This driver provides support for the Apple System Management
+	  Controller, which provides an accelerometer (Apple Sudden Motion
+	  Sensor), light sensors, temperature sensors, keyboard backlight
+	  control and fan control.
+
+	  Only Intel-based Apple's computers are supported (MacBook Pro,
+	  MacBook, MacMini).
+
+	  Data from the different sensors, keyboard backlight control and fan
+	  control are accessible via sysfs.
+
+	  This driver also provides an absolute input class device, allowing
+	  the laptop to act as a pinball machine-esque joystick.
+
+	  Say Y here if you have an applicable laptop and want to experience
+	  the awesome power of applesmc.
+
+source drivers/hwmon/pmbus/Kconfig
+
+config HWMON_DEBUG_CHIP
+	bool "Hardware Monitoring Chip debugging messages"
+	default n
+	help
+	  Say Y here if you want the I2C chip drivers to produce a bunch of
+	  debug messages to the system log.  Select this if you are having
+	  a problem with I2C support and want to see more of what is going
+	  on.
+
+endif # HWMON
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
new file mode 100644
index 0000000..9da064d
--- /dev/null
+++ b/drivers/hwmon/Makefile
@@ -0,0 +1,92 @@
+#
+# Makefile for sensor chip drivers.
+#
+
+obj-$(CONFIG_HWMON)		+= hwmon.o
+obj-$(CONFIG_HWMON_VID)		+= hwmon-vid.o
+
+# asb100, then w83781d go first, as they can override other drivers' addresses.
+obj-$(CONFIG_SENSORS_ASB100)	+= asb100.o
+obj-$(CONFIG_SENSORS_W83627HF)	+= w83627hf.o
+obj-$(CONFIG_SENSORS_W83792D)	+= w83792d.o
+obj-$(CONFIG_SENSORS_W83793)	+= w83793.o
+obj-$(CONFIG_SENSORS_W83795)	+= w83795.o
+obj-$(CONFIG_SENSORS_W83781D)	+= w83781d.o
+obj-$(CONFIG_SENSORS_W83791D)	+= w83791d.o
+
+obj-$(CONFIG_SENSORS_ABITUGURU)	+= abituguru.o
+obj-$(CONFIG_SENSORS_ABITUGURU3)+= abituguru3.o
+obj-$(CONFIG_SENSORS_AD7414)	+= ad7414.o
+obj-$(CONFIG_SENSORS_AD7418)	+= ad7418.o
+obj-$(CONFIG_SENSORS_ADCXX)	+= adcxx.o
+obj-$(CONFIG_SENSORS_ADM1021)	+= adm1021.o
+obj-$(CONFIG_SENSORS_ADM1025)	+= adm1025.o
+obj-$(CONFIG_SENSORS_ADM1026)	+= adm1026.o
+obj-$(CONFIG_SENSORS_ADM1029)	+= adm1029.o
+obj-$(CONFIG_SENSORS_ADM1031)	+= adm1031.o
+obj-$(CONFIG_SENSORS_ADM9240)	+= adm9240.o
+obj-$(CONFIG_SENSORS_ADS7828)	+= ads7828.o
+obj-$(CONFIG_SENSORS_ADT7462)	+= adt7462.o
+obj-$(CONFIG_SENSORS_ADT7470)	+= adt7470.o
+obj-$(CONFIG_SENSORS_ADT7473)	+= adt7473.o
+obj-$(CONFIG_SENSORS_APPLESMC)	+= applesmc.o
+obj-$(CONFIG_SENSORS_AST_ADC)	+= ast_adc.o
+obj-$(CONFIG_SENSORS_AST_PWM_FAN)	+= ast_pwm_fan.o
+obj-$(CONFIG_SENSORS_FB_PANTHER_PLUS)	+= fb_panther_plus.o
+obj-$(CONFIG_SENSORS_AMS)	+= ams/
+obj-$(CONFIG_SENSORS_ATXP1)	+= atxp1.o
+obj-$(CONFIG_SENSORS_CORETEMP)	+= coretemp.o
+obj-$(CONFIG_SENSORS_DME1737)	+= dme1737.o
+obj-$(CONFIG_SENSORS_DS1621)	+= ds1621.o
+obj-$(CONFIG_SENSORS_F71805F)	+= f71805f.o
+obj-$(CONFIG_SENSORS_F71882FG)	+= f71882fg.o
+obj-$(CONFIG_SENSORS_F75375S)	+= f75375s.o
+obj-$(CONFIG_SENSORS_FSCHER)	+= fscher.o
+obj-$(CONFIG_SENSORS_FSCHMD)	+= fschmd.o
+obj-$(CONFIG_SENSORS_FSCPOS)	+= fscpos.o
+obj-$(CONFIG_SENSORS_GL518SM)	+= gl518sm.o
+obj-$(CONFIG_SENSORS_GL520SM)	+= gl520sm.o
+obj-$(CONFIG_SENSORS_ULTRA45)	+= ultra45_env.o
+obj-$(CONFIG_SENSORS_HDAPS)	+= hdaps.o
+obj-$(CONFIG_SENSORS_I5K_AMB)	+= i5k_amb.o
+obj-$(CONFIG_SENSORS_IBMAEM)	+= ibmaem.o
+obj-$(CONFIG_SENSORS_IBMPEX)	+= ibmpex.o
+obj-$(CONFIG_SENSORS_IT87)	+= it87.o
+obj-$(CONFIG_SENSORS_K8TEMP)	+= k8temp.o
+obj-$(CONFIG_SENSORS_LIS3LV02D) += lis3lv02d.o
+obj-$(CONFIG_SENSORS_LM63)	+= lm63.o
+obj-$(CONFIG_SENSORS_LM70)	+= lm70.o
+obj-$(CONFIG_SENSORS_LM75)	+= lm75.o
+obj-$(CONFIG_SENSORS_LM77)	+= lm77.o
+obj-$(CONFIG_SENSORS_LM78)	+= lm78.o
+obj-$(CONFIG_SENSORS_LM80)	+= lm80.o
+obj-$(CONFIG_SENSORS_LM83)	+= lm83.o
+obj-$(CONFIG_SENSORS_LM85)	+= lm85.o
+obj-$(CONFIG_SENSORS_LM87)	+= lm87.o
+obj-$(CONFIG_SENSORS_LM90)	+= lm90.o
+obj-$(CONFIG_SENSORS_LM92)	+= lm92.o
+obj-$(CONFIG_SENSORS_LM93)	+= lm93.o
+obj-$(CONFIG_SENSORS_MAX127)	+= max127.o
+obj-$(CONFIG_SENSORS_MAX1111)	+= max1111.o
+obj-$(CONFIG_SENSORS_MAX1619)	+= max1619.o
+obj-$(CONFIG_SENSORS_MAX6650)	+= max6650.o
+obj-$(CONFIG_SENSORS_PC87360)	+= pc87360.o
+obj-$(CONFIG_SENSORS_PC87427)	+= pc87427.o
+obj-$(CONFIG_SENSORS_SIS5595)	+= sis5595.o
+obj-$(CONFIG_SENSORS_SMSC47B397)+= smsc47b397.o
+obj-$(CONFIG_SENSORS_SMSC47M1)	+= smsc47m1.o
+obj-$(CONFIG_SENSORS_SMSC47M192)+= smsc47m192.o
+obj-$(CONFIG_SENSORS_THMC50)	+= thmc50.o
+obj-$(CONFIG_SENSORS_VIA686A)	+= via686a.o
+obj-$(CONFIG_SENSORS_VT1211)	+= vt1211.o
+obj-$(CONFIG_SENSORS_VT8231)	+= vt8231.o
+obj-$(CONFIG_SENSORS_W83627EHF)	+= w83627ehf.o
+obj-$(CONFIG_SENSORS_W83L785TS)	+= w83l785ts.o
+obj-$(CONFIG_SENSORS_W83L786NG)	+= w83l786ng.o
+
+obj-$(CONFIG_PMBUS)             += pmbus/
+
+ifeq ($(CONFIG_HWMON_DEBUG_CHIP),y)
+EXTRA_CFLAGS += -DDEBUG
+endif
+
diff --git a/drivers/hwmon/abituguru.c b/drivers/hwmon/abituguru.c
new file mode 100644
index 0000000..4dbdb81
--- /dev/null
+++ b/drivers/hwmon/abituguru.c
@@ -0,0 +1,1515 @@
+/*
+    abituguru.c Copyright (c) 2005-2006 Hans de Goede <j.w.r.degoede@hhs.nl>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+/*
+    This driver supports the sensor part of the first and second revision of
+    the custom Abit uGuru chip found on Abit uGuru motherboards. Note: because
+    of lack of specs the CPU/RAM voltage & frequency control is not supported!
+*/
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/mutex.h>
+#include <linux/err.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/dmi.h>
+#include <asm/io.h>
+
+/* Banks */
+#define ABIT_UGURU_ALARM_BANK			0x20 /* 1x 3 bytes */
+#define ABIT_UGURU_SENSOR_BANK1			0x21 /* 16x volt and temp */
+#define ABIT_UGURU_FAN_PWM			0x24 /* 3x 5 bytes */
+#define ABIT_UGURU_SENSOR_BANK2			0x26 /* fans */
+/* max nr of sensors in bank1, a bank1 sensor can be in, temp or nc */
+#define ABIT_UGURU_MAX_BANK1_SENSORS		16
+/* Warning if you increase one of the 2 MAX defines below to 10 or higher you
+   should adjust the belonging _NAMES_LENGTH macro for the 2 digit number! */
+/* max nr of sensors in bank2, currently mb's with max 6 fans are known */
+#define ABIT_UGURU_MAX_BANK2_SENSORS		6
+/* max nr of pwm outputs, currently mb's with max 5 pwm outputs are known */
+#define ABIT_UGURU_MAX_PWMS			5
+/* uGuru sensor bank 1 flags */			     /* Alarm if: */
+#define ABIT_UGURU_TEMP_HIGH_ALARM_ENABLE	0x01 /*  temp over warn */
+#define ABIT_UGURU_VOLT_HIGH_ALARM_ENABLE	0x02 /*  volt over max */
+#define ABIT_UGURU_VOLT_LOW_ALARM_ENABLE	0x04 /*  volt under min */
+#define ABIT_UGURU_TEMP_HIGH_ALARM_FLAG		0x10 /* temp is over warn */
+#define ABIT_UGURU_VOLT_HIGH_ALARM_FLAG		0x20 /* volt is over max */
+#define ABIT_UGURU_VOLT_LOW_ALARM_FLAG		0x40 /* volt is under min */
+/* uGuru sensor bank 2 flags */			     /* Alarm if: */
+#define ABIT_UGURU_FAN_LOW_ALARM_ENABLE		0x01 /*   fan under min */
+/* uGuru sensor bank common flags */
+#define ABIT_UGURU_BEEP_ENABLE			0x08 /* beep if alarm */
+#define ABIT_UGURU_SHUTDOWN_ENABLE		0x80 /* shutdown if alarm */
+/* uGuru fan PWM (speed control) flags */
+#define ABIT_UGURU_FAN_PWM_ENABLE		0x80 /* enable speed control */
+/* Values used for conversion */
+#define ABIT_UGURU_FAN_MAX			15300 /* RPM */
+/* Bank1 sensor types */
+#define ABIT_UGURU_IN_SENSOR			0
+#define ABIT_UGURU_TEMP_SENSOR			1
+#define ABIT_UGURU_NC				2
+/* In many cases we need to wait for the uGuru to reach a certain status, most
+   of the time it will reach this status within 30 - 90 ISA reads, and thus we
+   can best busy wait. This define gives the total amount of reads to try. */
+#define ABIT_UGURU_WAIT_TIMEOUT			125
+/* However sometimes older versions of the uGuru seem to be distracted and they
+   do not respond for a long time. To handle this we sleep before each of the
+   last ABIT_UGURU_WAIT_TIMEOUT_SLEEP tries. */
+#define ABIT_UGURU_WAIT_TIMEOUT_SLEEP		5
+/* Normally all expected status in abituguru_ready, are reported after the
+   first read, but sometimes not and we need to poll. */
+#define ABIT_UGURU_READY_TIMEOUT		5
+/* Maximum 3 retries on timedout reads/writes, delay 200 ms before retrying */
+#define ABIT_UGURU_MAX_RETRIES			3
+#define ABIT_UGURU_RETRY_DELAY			(HZ/5)
+/* Maximum 2 timeouts in abituguru_update_device, iow 3 in a row is an error */
+#define ABIT_UGURU_MAX_TIMEOUTS			2
+/* utility macros */
+#define ABIT_UGURU_NAME				"abituguru"
+#define ABIT_UGURU_DEBUG(level, format, arg...)				\
+	if (level <= verbose)						\
+		printk(KERN_DEBUG ABIT_UGURU_NAME ": "	format , ## arg)
+/* Macros to help calculate the sysfs_names array length */
+/* sum of strlen of: in??_input\0, in??_{min,max}\0, in??_{min,max}_alarm\0,
+   in??_{min,max}_alarm_enable\0, in??_beep\0, in??_shutdown\0 */
+#define ABITUGURU_IN_NAMES_LENGTH	(11 + 2 * 9 + 2 * 15 + 2 * 22 + 10 + 14)
+/* sum of strlen of: temp??_input\0, temp??_max\0, temp??_crit\0,
+   temp??_alarm\0, temp??_alarm_enable\0, temp??_beep\0, temp??_shutdown\0 */
+#define ABITUGURU_TEMP_NAMES_LENGTH	(13 + 11 + 12 + 13 + 20 + 12 + 16)
+/* sum of strlen of: fan?_input\0, fan?_min\0, fan?_alarm\0,
+   fan?_alarm_enable\0, fan?_beep\0, fan?_shutdown\0 */
+#define ABITUGURU_FAN_NAMES_LENGTH	(11 + 9 + 11 + 18 + 10 + 14)
+/* sum of strlen of: pwm?_enable\0, pwm?_auto_channels_temp\0,
+   pwm?_auto_point{1,2}_pwm\0, pwm?_auto_point{1,2}_temp\0 */
+#define ABITUGURU_PWM_NAMES_LENGTH	(12 + 24 + 2 * 21 + 2 * 22)
+/* IN_NAMES_LENGTH > TEMP_NAMES_LENGTH so assume all bank1 sensors are in */
+#define ABITUGURU_SYSFS_NAMES_LENGTH	( \
+	ABIT_UGURU_MAX_BANK1_SENSORS * ABITUGURU_IN_NAMES_LENGTH + \
+	ABIT_UGURU_MAX_BANK2_SENSORS * ABITUGURU_FAN_NAMES_LENGTH + \
+	ABIT_UGURU_MAX_PWMS * ABITUGURU_PWM_NAMES_LENGTH)
+
+/* All the macros below are named identical to the oguru and oguru2 programs
+   reverse engineered by Olle Sandberg, hence the names might not be 100%
+   logical. I could come up with better names, but I prefer keeping the names
+   identical so that this driver can be compared with his work more easily. */
+/* Two i/o-ports are used by uGuru */
+#define ABIT_UGURU_BASE				0x00E0
+/* Used to tell uGuru what to read and to read the actual data */
+#define ABIT_UGURU_CMD				0x00
+/* Mostly used to check if uGuru is busy */
+#define ABIT_UGURU_DATA				0x04
+#define ABIT_UGURU_REGION_LENGTH		5
+/* uGuru status' */
+#define ABIT_UGURU_STATUS_WRITE			0x00 /* Ready to be written */
+#define ABIT_UGURU_STATUS_READ			0x01 /* Ready to be read */
+#define ABIT_UGURU_STATUS_INPUT			0x08 /* More input */
+#define ABIT_UGURU_STATUS_READY			0x09 /* Ready to be written */
+
+/* Constants */
+/* in (Volt) sensors go up to 3494 mV, temp to 255000 millidegrees Celsius */
+static const int abituguru_bank1_max_value[2] = { 3494, 255000 };
+/* Min / Max allowed values for sensor2 (fan) alarm threshold, these values
+   correspond to 300-3000 RPM */
+static const u8 abituguru_bank2_min_threshold = 5;
+static const u8 abituguru_bank2_max_threshold = 50;
+/* Register 0 is a bitfield, 1 and 2 are pwm settings (255 = 100%), 3 and 4
+   are temperature trip points. */
+static const int abituguru_pwm_settings_multiplier[5] = { 0, 1, 1, 1000, 1000 };
+/* Min / Max allowed values for pwm_settings. Note: pwm1 (CPU fan) is a
+   special case the minium allowed pwm% setting for this is 30% (77) on
+   some MB's this special case is handled in the code! */
+static const u8 abituguru_pwm_min[5] = { 0, 170, 170, 25, 25 };
+static const u8 abituguru_pwm_max[5] = { 0, 255, 255, 75, 75 };
+
+
+/* Insmod parameters */
+static int force;
+module_param(force, bool, 0);
+MODULE_PARM_DESC(force, "Set to one to force detection.");
+static int bank1_types[ABIT_UGURU_MAX_BANK1_SENSORS] = { -1, -1, -1, -1, -1,
+	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 };
+module_param_array(bank1_types, int, NULL, 0);
+MODULE_PARM_DESC(bank1_types, "Bank1 sensortype autodetection override:\n"
+	"   -1 autodetect\n"
+	"    0 volt sensor\n"
+	"    1 temp sensor\n"
+	"    2 not connected");
+static int fan_sensors;
+module_param(fan_sensors, int, 0);
+MODULE_PARM_DESC(fan_sensors, "Number of fan sensors on the uGuru "
+	"(0 = autodetect)");
+static int pwms;
+module_param(pwms, int, 0);
+MODULE_PARM_DESC(pwms, "Number of PWMs on the uGuru "
+	"(0 = autodetect)");
+
+/* Default verbose is 2, since this driver is still in the testing phase */
+static int verbose = 2;
+module_param(verbose, int, 0644);
+MODULE_PARM_DESC(verbose, "How verbose should the driver be? (0-3):\n"
+	"   0 normal output\n"
+	"   1 + verbose error reporting\n"
+	"   2 + sensors type probing info\n"
+	"   3 + retryable error reporting");
+
+
+/* For the Abit uGuru, we need to keep some data in memory.
+   The structure is dynamically allocated, at the same time when a new
+   abituguru device is allocated. */
+struct abituguru_data {
+	struct device *hwmon_dev;	/* hwmon registered device */
+	struct mutex update_lock;	/* protect access to data and uGuru */
+	unsigned long last_updated;	/* In jiffies */
+	unsigned short addr;		/* uguru base address */
+	char uguru_ready;		/* is the uguru in ready state? */
+	unsigned char update_timeouts;	/* number of update timeouts since last
+					   successful update */
+
+	/* The sysfs attr and their names are generated automatically, for bank1
+	   we cannot use a predefined array because we don't know beforehand
+	   of a sensor is a volt or a temp sensor, for bank2 and the pwms its
+	   easier todo things the same way.  For in sensors we have 9 (temp 7)
+	   sysfs entries per sensor, for bank2 and pwms 6. */
+	struct sensor_device_attribute_2 sysfs_attr[
+		ABIT_UGURU_MAX_BANK1_SENSORS * 9 +
+		ABIT_UGURU_MAX_BANK2_SENSORS * 6 + ABIT_UGURU_MAX_PWMS * 6];
+	/* Buffer to store the dynamically generated sysfs names */
+	char sysfs_names[ABITUGURU_SYSFS_NAMES_LENGTH];
+
+	/* Bank 1 data */
+	/* number of and addresses of [0] in, [1] temp sensors */
+	u8 bank1_sensors[2];
+	u8 bank1_address[2][ABIT_UGURU_MAX_BANK1_SENSORS];
+	u8 bank1_value[ABIT_UGURU_MAX_BANK1_SENSORS];
+	/* This array holds 3 entries per sensor for the bank 1 sensor settings
+	   (flags, min, max for voltage / flags, warn, shutdown for temp). */
+	u8 bank1_settings[ABIT_UGURU_MAX_BANK1_SENSORS][3];
+	/* Maximum value for each sensor used for scaling in mV/millidegrees
+	   Celsius. */
+	int bank1_max_value[ABIT_UGURU_MAX_BANK1_SENSORS];
+
+	/* Bank 2 data, ABIT_UGURU_MAX_BANK2_SENSORS entries for bank2 */
+	u8 bank2_sensors; /* actual number of bank2 sensors found */
+	u8 bank2_value[ABIT_UGURU_MAX_BANK2_SENSORS];
+	u8 bank2_settings[ABIT_UGURU_MAX_BANK2_SENSORS][2]; /* flags, min */
+
+	/* Alarms 2 bytes for bank1, 1 byte for bank2 */
+	u8 alarms[3];
+
+	/* Fan PWM (speed control) 5 bytes per PWM */
+	u8 pwms; /* actual number of pwms found */
+	u8 pwm_settings[ABIT_UGURU_MAX_PWMS][5];
+};
+
+/* wait till the uguru is in the specified state */
+static int abituguru_wait(struct abituguru_data *data, u8 state)
+{
+	int timeout = ABIT_UGURU_WAIT_TIMEOUT;
+
+	while (inb_p(data->addr + ABIT_UGURU_DATA) != state) {
+		timeout--;
+		if (timeout == 0)
+			return -EBUSY;
+		/* sleep a bit before our last few tries, see the comment on
+		   this where ABIT_UGURU_WAIT_TIMEOUT_SLEEP is defined. */
+		if (timeout <= ABIT_UGURU_WAIT_TIMEOUT_SLEEP)
+			msleep(0);
+	}
+	return 0;
+}
+
+/* Put the uguru in ready for input state */
+static int abituguru_ready(struct abituguru_data *data)
+{
+	int timeout = ABIT_UGURU_READY_TIMEOUT;
+
+	if (data->uguru_ready)
+		return 0;
+
+	/* Reset? / Prepare for next read/write cycle */
+	outb(0x00, data->addr + ABIT_UGURU_DATA);
+
+	/* Wait till the uguru is ready */
+	if (abituguru_wait(data, ABIT_UGURU_STATUS_READY)) {
+		ABIT_UGURU_DEBUG(1,
+			"timeout exceeded waiting for ready state\n");
+		return -EIO;
+	}
+
+	/* Cmd port MUST be read now and should contain 0xAC */
+	while (inb_p(data->addr + ABIT_UGURU_CMD) != 0xAC) {
+		timeout--;
+		if (timeout == 0) {
+			ABIT_UGURU_DEBUG(1,
+			   "CMD reg does not hold 0xAC after ready command\n");
+			return -EIO;
+		}
+		msleep(0);
+	}
+
+	/* After this the ABIT_UGURU_DATA port should contain
+	   ABIT_UGURU_STATUS_INPUT */
+	timeout = ABIT_UGURU_READY_TIMEOUT;
+	while (inb_p(data->addr + ABIT_UGURU_DATA) != ABIT_UGURU_STATUS_INPUT) {
+		timeout--;
+		if (timeout == 0) {
+			ABIT_UGURU_DEBUG(1,
+				"state != more input after ready command\n");
+			return -EIO;
+		}
+		msleep(0);
+	}
+
+	data->uguru_ready = 1;
+	return 0;
+}
+
+/* Send the bank and then sensor address to the uGuru for the next read/write
+   cycle. This function gets called as the first part of a read/write by
+   abituguru_read and abituguru_write. This function should never be
+   called by any other function. */
+static int abituguru_send_address(struct abituguru_data *data,
+	u8 bank_addr, u8 sensor_addr, int retries)
+{
+	/* assume the caller does error handling itself if it has not requested
+	   any retries, and thus be quiet. */
+	int report_errors = retries;
+
+	for (;;) {
+		/* Make sure the uguru is ready and then send the bank address,
+		   after this the uguru is no longer "ready". */
+		if (abituguru_ready(data) != 0)
+			return -EIO;
+		outb(bank_addr, data->addr + ABIT_UGURU_DATA);
+		data->uguru_ready = 0;
+
+		/* Wait till the uguru is ABIT_UGURU_STATUS_INPUT state again
+		   and send the sensor addr */
+		if (abituguru_wait(data, ABIT_UGURU_STATUS_INPUT)) {
+			if (retries) {
+				ABIT_UGURU_DEBUG(3, "timeout exceeded "
+					"waiting for more input state, %d "
+					"tries remaining\n", retries);
+				set_current_state(TASK_UNINTERRUPTIBLE);
+				schedule_timeout(ABIT_UGURU_RETRY_DELAY);
+				retries--;
+				continue;
+			}
+			if (report_errors)
+				ABIT_UGURU_DEBUG(1, "timeout exceeded "
+					"waiting for more input state "
+					"(bank: %d)\n", (int)bank_addr);
+			return -EBUSY;
+		}
+		outb(sensor_addr, data->addr + ABIT_UGURU_CMD);
+		return 0;
+	}
+}
+
+/* Read count bytes from sensor sensor_addr in bank bank_addr and store the
+   result in buf, retry the send address part of the read retries times. */
+static int abituguru_read(struct abituguru_data *data,
+	u8 bank_addr, u8 sensor_addr, u8 *buf, int count, int retries)
+{
+	int i;
+
+	/* Send the address */
+	i = abituguru_send_address(data, bank_addr, sensor_addr, retries);
+	if (i)
+		return i;
+
+	/* And read the data */
+	for (i = 0; i < count; i++) {
+		if (abituguru_wait(data, ABIT_UGURU_STATUS_READ)) {
+			ABIT_UGURU_DEBUG(retries ? 1 : 3,
+				"timeout exceeded waiting for "
+				"read state (bank: %d, sensor: %d)\n",
+				(int)bank_addr, (int)sensor_addr);
+			break;
+		}
+		buf[i] = inb(data->addr + ABIT_UGURU_CMD);
+	}
+
+	/* Last put the chip back in ready state */
+	abituguru_ready(data);
+
+	return i;
+}
+
+/* Write count bytes from buf to sensor sensor_addr in bank bank_addr, the send
+   address part of the write is always retried ABIT_UGURU_MAX_RETRIES times. */
+static int abituguru_write(struct abituguru_data *data,
+	u8 bank_addr, u8 sensor_addr, u8 *buf, int count)
+{
+	/* We use the ready timeout as we have to wait for 0xAC just like the
+	   ready function */
+	int i, timeout = ABIT_UGURU_READY_TIMEOUT;
+
+	/* Send the address */
+	i = abituguru_send_address(data, bank_addr, sensor_addr,
+		ABIT_UGURU_MAX_RETRIES);
+	if (i)
+		return i;
+
+	/* And write the data */
+	for (i = 0; i < count; i++) {
+		if (abituguru_wait(data, ABIT_UGURU_STATUS_WRITE)) {
+			ABIT_UGURU_DEBUG(1, "timeout exceeded waiting for "
+				"write state (bank: %d, sensor: %d)\n",
+				(int)bank_addr, (int)sensor_addr);
+			break;
+		}
+		outb(buf[i], data->addr + ABIT_UGURU_CMD);
+	}
+
+	/* Now we need to wait till the chip is ready to be read again,
+	   so that we can read 0xAC as confirmation that our write has
+	   succeeded. */
+	if (abituguru_wait(data, ABIT_UGURU_STATUS_READ)) {
+		ABIT_UGURU_DEBUG(1, "timeout exceeded waiting for read state "
+			"after write (bank: %d, sensor: %d)\n", (int)bank_addr,
+			(int)sensor_addr);
+		return -EIO;
+	}
+
+	/* Cmd port MUST be read now and should contain 0xAC */
+	while (inb_p(data->addr + ABIT_UGURU_CMD) != 0xAC) {
+		timeout--;
+		if (timeout == 0) {
+			ABIT_UGURU_DEBUG(1, "CMD reg does not hold 0xAC after "
+				"write (bank: %d, sensor: %d)\n",
+				(int)bank_addr, (int)sensor_addr);
+			return -EIO;
+		}
+		msleep(0);
+	}
+
+	/* Last put the chip back in ready state */
+	abituguru_ready(data);
+
+	return i;
+}
+
+/* Detect sensor type. Temp and Volt sensors are enabled with
+   different masks and will ignore enable masks not meant for them.
+   This enables us to test what kind of sensor we're dealing with.
+   By setting the alarm thresholds so that we will always get an
+   alarm for sensor type X and then enabling the sensor as sensor type
+   X, if we then get an alarm it is a sensor of type X. */
+static int __devinit
+abituguru_detect_bank1_sensor_type(struct abituguru_data *data,
+				   u8 sensor_addr)
+{
+	u8 val, test_flag, buf[3];
+	int i, ret = -ENODEV; /* error is the most common used retval :| */
+
+	/* If overriden by the user return the user selected type */
+	if (bank1_types[sensor_addr] >= ABIT_UGURU_IN_SENSOR &&
+			bank1_types[sensor_addr] <= ABIT_UGURU_NC) {
+		ABIT_UGURU_DEBUG(2, "assuming sensor type %d for bank1 sensor "
+			"%d because of \"bank1_types\" module param\n",
+			bank1_types[sensor_addr], (int)sensor_addr);
+		return bank1_types[sensor_addr];
+	}
+
+	/* First read the sensor and the current settings */
+	if (abituguru_read(data, ABIT_UGURU_SENSOR_BANK1, sensor_addr, &val,
+			1, ABIT_UGURU_MAX_RETRIES) != 1)
+		return -ENODEV;
+
+	/* Test val is sane / usable for sensor type detection. */
+	if ((val < 10u) || (val > 250u)) {
+		printk(KERN_WARNING ABIT_UGURU_NAME
+			": bank1-sensor: %d reading (%d) too close to limits, "
+			"unable to determine sensor type, skipping sensor\n",
+			(int)sensor_addr, (int)val);
+		/* assume no sensor is there for sensors for which we can't
+		   determine the sensor type because their reading is too close
+		   to their limits, this usually means no sensor is there. */
+		return ABIT_UGURU_NC;
+	}
+
+	ABIT_UGURU_DEBUG(2, "testing bank1 sensor %d\n", (int)sensor_addr);
+	/* Volt sensor test, enable volt low alarm, set min value ridicously
+	   high, or vica versa if the reading is very high. If its a volt
+	   sensor this should always give us an alarm. */
+	if (val <= 240u) {
+		buf[0] = ABIT_UGURU_VOLT_LOW_ALARM_ENABLE;
+		buf[1] = 245;
+		buf[2] = 250;
+		test_flag = ABIT_UGURU_VOLT_LOW_ALARM_FLAG;
+	} else {
+		buf[0] = ABIT_UGURU_VOLT_HIGH_ALARM_ENABLE;
+		buf[1] = 5;
+		buf[2] = 10;
+		test_flag = ABIT_UGURU_VOLT_HIGH_ALARM_FLAG;
+	}
+
+	if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2, sensor_addr,
+			buf, 3) != 3)
+		goto abituguru_detect_bank1_sensor_type_exit;
+	/* Now we need 20 ms to give the uguru time to read the sensors
+	   and raise a voltage alarm */
+	set_current_state(TASK_UNINTERRUPTIBLE);
+	schedule_timeout(HZ/50);
+	/* Check for alarm and check the alarm is a volt low alarm. */
+	if (abituguru_read(data, ABIT_UGURU_ALARM_BANK, 0, buf, 3,
+			ABIT_UGURU_MAX_RETRIES) != 3)
+		goto abituguru_detect_bank1_sensor_type_exit;
+	if (buf[sensor_addr/8] & (0x01 << (sensor_addr % 8))) {
+		if (abituguru_read(data, ABIT_UGURU_SENSOR_BANK1 + 1,
+				sensor_addr, buf, 3,
+				ABIT_UGURU_MAX_RETRIES) != 3)
+			goto abituguru_detect_bank1_sensor_type_exit;
+		if (buf[0] & test_flag) {
+			ABIT_UGURU_DEBUG(2, "  found volt sensor\n");
+			ret = ABIT_UGURU_IN_SENSOR;
+			goto abituguru_detect_bank1_sensor_type_exit;
+		} else
+			ABIT_UGURU_DEBUG(2, "  alarm raised during volt "
+				"sensor test, but volt range flag not set\n");
+	} else
+		ABIT_UGURU_DEBUG(2, "  alarm not raised during volt sensor "
+			"test\n");
+
+	/* Temp sensor test, enable sensor as a temp sensor, set beep value
+	   ridicously low (but not too low, otherwise uguru ignores it).
+	   If its a temp sensor this should always give us an alarm. */
+	buf[0] = ABIT_UGURU_TEMP_HIGH_ALARM_ENABLE;
+	buf[1] = 5;
+	buf[2] = 10;
+	if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2, sensor_addr,
+			buf, 3) != 3)
+		goto abituguru_detect_bank1_sensor_type_exit;
+	/* Now we need 50 ms to give the uguru time to read the sensors
+	   and raise a temp alarm */
+	set_current_state(TASK_UNINTERRUPTIBLE);
+	schedule_timeout(HZ/20);
+	/* Check for alarm and check the alarm is a temp high alarm. */
+	if (abituguru_read(data, ABIT_UGURU_ALARM_BANK, 0, buf, 3,
+			ABIT_UGURU_MAX_RETRIES) != 3)
+		goto abituguru_detect_bank1_sensor_type_exit;
+	if (buf[sensor_addr/8] & (0x01 << (sensor_addr % 8))) {
+		if (abituguru_read(data, ABIT_UGURU_SENSOR_BANK1 + 1,
+				sensor_addr, buf, 3,
+				ABIT_UGURU_MAX_RETRIES) != 3)
+			goto abituguru_detect_bank1_sensor_type_exit;
+		if (buf[0] & ABIT_UGURU_TEMP_HIGH_ALARM_FLAG) {
+			ABIT_UGURU_DEBUG(2, "  found temp sensor\n");
+			ret = ABIT_UGURU_TEMP_SENSOR;
+			goto abituguru_detect_bank1_sensor_type_exit;
+		} else
+			ABIT_UGURU_DEBUG(2, "  alarm raised during temp "
+				"sensor test, but temp high flag not set\n");
+	} else
+		ABIT_UGURU_DEBUG(2, "  alarm not raised during temp sensor "
+			"test\n");
+
+	ret = ABIT_UGURU_NC;
+abituguru_detect_bank1_sensor_type_exit:
+	/* Restore original settings, failing here is really BAD, it has been
+	   reported that some BIOS-es hang when entering the uGuru menu with
+	   invalid settings present in the uGuru, so we try this 3 times. */
+	for (i = 0; i < 3; i++)
+		if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2,
+				sensor_addr, data->bank1_settings[sensor_addr],
+				3) == 3)
+			break;
+	if (i == 3) {
+		printk(KERN_ERR ABIT_UGURU_NAME
+			": Fatal error could not restore original settings. "
+			"This should never happen please report this to the "
+			"abituguru maintainer (see MAINTAINERS)\n");
+		return -ENODEV;
+	}
+	return ret;
+}
+
+/* These functions try to find out how many sensors there are in bank2 and how
+   many pwms there are. The purpose of this is to make sure that we don't give
+   the user the possibility to change settings for non-existent sensors / pwm.
+   The uGuru will happily read / write whatever memory happens to be after the
+   memory storing the PWM settings when reading/writing to a PWM which is not
+   there. Notice even if we detect a PWM which doesn't exist we normally won't
+   write to it, unless the user tries to change the settings.
+
+   Although the uGuru allows reading (settings) from non existing bank2
+   sensors, my version of the uGuru does seem to stop writing to them, the
+   write function above aborts in this case with:
+   "CMD reg does not hold 0xAC after write"
+
+   Notice these 2 tests are non destructive iow read-only tests, otherwise
+   they would defeat their purpose. Although for the bank2_sensors detection a
+   read/write test would be feasible because of the reaction above, I've
+   however opted to stay on the safe side. */
+static void __devinit
+abituguru_detect_no_bank2_sensors(struct abituguru_data *data)
+{
+	int i;
+
+	if (fan_sensors > 0 && fan_sensors <= ABIT_UGURU_MAX_BANK2_SENSORS) {
+		data->bank2_sensors = fan_sensors;
+		ABIT_UGURU_DEBUG(2, "assuming %d fan sensors because of "
+			"\"fan_sensors\" module param\n",
+			(int)data->bank2_sensors);
+		return;
+	}
+
+	ABIT_UGURU_DEBUG(2, "detecting number of fan sensors\n");
+	for (i = 0; i < ABIT_UGURU_MAX_BANK2_SENSORS; i++) {
+		/* 0x89 are the known used bits:
+		   -0x80 enable shutdown
+		   -0x08 enable beep
+		   -0x01 enable alarm
+		   All other bits should be 0, but on some motherboards
+		   0x40 (bit 6) is also high for some of the fans?? */
+		if (data->bank2_settings[i][0] & ~0xC9) {
+			ABIT_UGURU_DEBUG(2, "  bank2 sensor %d does not seem "
+				"to be a fan sensor: settings[0] = %02X\n",
+				i, (unsigned int)data->bank2_settings[i][0]);
+			break;
+		}
+
+		/* check if the threshold is within the allowed range */
+		if (data->bank2_settings[i][1] <
+				abituguru_bank2_min_threshold) {
+			ABIT_UGURU_DEBUG(2, "  bank2 sensor %d does not seem "
+				"to be a fan sensor: the threshold (%d) is "
+				"below the minimum (%d)\n", i,
+				(int)data->bank2_settings[i][1],
+				(int)abituguru_bank2_min_threshold);
+			break;
+		}
+		if (data->bank2_settings[i][1] >
+				abituguru_bank2_max_threshold) {
+			ABIT_UGURU_DEBUG(2, "  bank2 sensor %d does not seem "
+				"to be a fan sensor: the threshold (%d) is "
+				"above the maximum (%d)\n", i,
+				(int)data->bank2_settings[i][1],
+				(int)abituguru_bank2_max_threshold);
+			break;
+		}
+	}
+
+	data->bank2_sensors = i;
+	ABIT_UGURU_DEBUG(2, " found: %d fan sensors\n",
+		(int)data->bank2_sensors);
+}
+
+static void __devinit
+abituguru_detect_no_pwms(struct abituguru_data *data)
+{
+	int i, j;
+
+	if (pwms > 0 && pwms <= ABIT_UGURU_MAX_PWMS) {
+		data->pwms = pwms;
+		ABIT_UGURU_DEBUG(2, "assuming %d PWM outputs because of "
+			"\"pwms\" module param\n", (int)data->pwms);
+		return;
+	}
+
+	ABIT_UGURU_DEBUG(2, "detecting number of PWM outputs\n");
+	for (i = 0; i < ABIT_UGURU_MAX_PWMS; i++) {
+		/* 0x80 is the enable bit and the low
+		   nibble is which temp sensor to use,
+		   the other bits should be 0 */
+		if (data->pwm_settings[i][0] & ~0x8F) {
+			ABIT_UGURU_DEBUG(2, "  pwm channel %d does not seem "
+				"to be a pwm channel: settings[0] = %02X\n",
+				i, (unsigned int)data->pwm_settings[i][0]);
+			break;
+		}
+
+		/* the low nibble must correspond to one of the temp sensors
+		   we've found */
+		for (j = 0; j < data->bank1_sensors[ABIT_UGURU_TEMP_SENSOR];
+				j++) {
+			if (data->bank1_address[ABIT_UGURU_TEMP_SENSOR][j] ==
+					(data->pwm_settings[i][0] & 0x0F))
+				break;
+		}
+		if (j == data->bank1_sensors[ABIT_UGURU_TEMP_SENSOR]) {
+			ABIT_UGURU_DEBUG(2, "  pwm channel %d does not seem "
+				"to be a pwm channel: %d is not a valid temp "
+				"sensor address\n", i,
+				data->pwm_settings[i][0] & 0x0F);
+			break;
+		}
+
+		/* check if all other settings are within the allowed range */
+		for (j = 1; j < 5; j++) {
+			u8 min;
+			/* special case pwm1 min pwm% */
+			if ((i == 0) && ((j == 1) || (j == 2)))
+				min = 77;
+			else
+				min = abituguru_pwm_min[j];
+			if (data->pwm_settings[i][j] < min) {
+				ABIT_UGURU_DEBUG(2, "  pwm channel %d does "
+					"not seem to be a pwm channel: "
+					"setting %d (%d) is below the minimum "
+					"value (%d)\n", i, j,
+					(int)data->pwm_settings[i][j],
+					(int)min);
+				goto abituguru_detect_no_pwms_exit;
+			}
+			if (data->pwm_settings[i][j] > abituguru_pwm_max[j]) {
+				ABIT_UGURU_DEBUG(2, "  pwm channel %d does "
+					"not seem to be a pwm channel: "
+					"setting %d (%d) is above the maximum "
+					"value (%d)\n", i, j,
+					(int)data->pwm_settings[i][j],
+					(int)abituguru_pwm_max[j]);
+				goto abituguru_detect_no_pwms_exit;
+			}
+		}
+
+		/* check that min temp < max temp and min pwm < max pwm */
+		if (data->pwm_settings[i][1] >= data->pwm_settings[i][2]) {
+			ABIT_UGURU_DEBUG(2, "  pwm channel %d does not seem "
+				"to be a pwm channel: min pwm (%d) >= "
+				"max pwm (%d)\n", i,
+				(int)data->pwm_settings[i][1],
+				(int)data->pwm_settings[i][2]);
+			break;
+		}
+		if (data->pwm_settings[i][3] >= data->pwm_settings[i][4]) {
+			ABIT_UGURU_DEBUG(2, "  pwm channel %d does not seem "
+				"to be a pwm channel: min temp (%d) >= "
+				"max temp (%d)\n", i,
+				(int)data->pwm_settings[i][3],
+				(int)data->pwm_settings[i][4]);
+			break;
+		}
+	}
+
+abituguru_detect_no_pwms_exit:
+	data->pwms = i;
+	ABIT_UGURU_DEBUG(2, " found: %d PWM outputs\n", (int)data->pwms);
+}
+
+/* Following are the sysfs callback functions. These functions expect:
+   sensor_device_attribute_2->index:   sensor address/offset in the bank
+   sensor_device_attribute_2->nr:      register offset, bitmask or NA. */
+static struct abituguru_data *abituguru_update_device(struct device *dev);
+
+static ssize_t show_bank1_value(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct abituguru_data *data = abituguru_update_device(dev);
+	if (!data)
+		return -EIO;
+	return sprintf(buf, "%d\n", (data->bank1_value[attr->index] *
+		data->bank1_max_value[attr->index] + 128) / 255);
+}
+
+static ssize_t show_bank1_setting(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct abituguru_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%d\n",
+		(data->bank1_settings[attr->index][attr->nr] *
+		data->bank1_max_value[attr->index] + 128) / 255);
+}
+
+static ssize_t show_bank2_value(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct abituguru_data *data = abituguru_update_device(dev);
+	if (!data)
+		return -EIO;
+	return sprintf(buf, "%d\n", (data->bank2_value[attr->index] *
+		ABIT_UGURU_FAN_MAX + 128) / 255);
+}
+
+static ssize_t show_bank2_setting(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct abituguru_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%d\n",
+		(data->bank2_settings[attr->index][attr->nr] *
+		ABIT_UGURU_FAN_MAX + 128) / 255);
+}
+
+static ssize_t store_bank1_setting(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct abituguru_data *data = dev_get_drvdata(dev);
+	u8 val = (simple_strtoul(buf, NULL, 10) * 255 +
+		data->bank1_max_value[attr->index]/2) /
+		data->bank1_max_value[attr->index];
+	ssize_t ret = count;
+
+	mutex_lock(&data->update_lock);
+	if (data->bank1_settings[attr->index][attr->nr] != val) {
+		u8 orig_val = data->bank1_settings[attr->index][attr->nr];
+		data->bank1_settings[attr->index][attr->nr] = val;
+		if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2,
+				attr->index, data->bank1_settings[attr->index],
+				3) <= attr->nr) {
+			data->bank1_settings[attr->index][attr->nr] = orig_val;
+			ret = -EIO;
+		}
+	}
+	mutex_unlock(&data->update_lock);
+	return ret;
+}
+
+static ssize_t store_bank2_setting(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct abituguru_data *data = dev_get_drvdata(dev);
+	u8 val = (simple_strtoul(buf, NULL, 10)*255 + ABIT_UGURU_FAN_MAX/2) /
+		ABIT_UGURU_FAN_MAX;
+	ssize_t ret = count;
+
+	/* this check can be done before taking the lock */
+	if ((val < abituguru_bank2_min_threshold) ||
+			(val > abituguru_bank2_max_threshold))
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	if (data->bank2_settings[attr->index][attr->nr] != val) {
+		u8 orig_val = data->bank2_settings[attr->index][attr->nr];
+		data->bank2_settings[attr->index][attr->nr] = val;
+		if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK2 + 2,
+				attr->index, data->bank2_settings[attr->index],
+				2) <= attr->nr) {
+			data->bank2_settings[attr->index][attr->nr] = orig_val;
+			ret = -EIO;
+		}
+	}
+	mutex_unlock(&data->update_lock);
+	return ret;
+}
+
+static ssize_t show_bank1_alarm(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct abituguru_data *data = abituguru_update_device(dev);
+	if (!data)
+		return -EIO;
+	/* See if the alarm bit for this sensor is set, and if the
+	   alarm matches the type of alarm we're looking for (for volt
+	   it can be either low or high). The type is stored in a few
+	   readonly bits in the settings part of the relevant sensor.
+	   The bitmask of the type is passed to us in attr->nr. */
+	if ((data->alarms[attr->index / 8] & (0x01 << (attr->index % 8))) &&
+			(data->bank1_settings[attr->index][0] & attr->nr))
+		return sprintf(buf, "1\n");
+	else
+		return sprintf(buf, "0\n");
+}
+
+static ssize_t show_bank2_alarm(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct abituguru_data *data = abituguru_update_device(dev);
+	if (!data)
+		return -EIO;
+	if (data->alarms[2] & (0x01 << attr->index))
+		return sprintf(buf, "1\n");
+	else
+		return sprintf(buf, "0\n");
+}
+
+static ssize_t show_bank1_mask(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct abituguru_data *data = dev_get_drvdata(dev);
+	if (data->bank1_settings[attr->index][0] & attr->nr)
+		return sprintf(buf, "1\n");
+	else
+		return sprintf(buf, "0\n");
+}
+
+static ssize_t show_bank2_mask(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct abituguru_data *data = dev_get_drvdata(dev);
+	if (data->bank2_settings[attr->index][0] & attr->nr)
+		return sprintf(buf, "1\n");
+	else
+		return sprintf(buf, "0\n");
+}
+
+static ssize_t store_bank1_mask(struct device *dev,
+	struct device_attribute *devattr, const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct abituguru_data *data = dev_get_drvdata(dev);
+	int mask = simple_strtoul(buf, NULL, 10);
+	ssize_t ret = count;
+	u8 orig_val;
+
+	mutex_lock(&data->update_lock);
+	orig_val = data->bank1_settings[attr->index][0];
+
+	if (mask)
+		data->bank1_settings[attr->index][0] |= attr->nr;
+	else
+		data->bank1_settings[attr->index][0] &= ~attr->nr;
+
+	if ((data->bank1_settings[attr->index][0] != orig_val) &&
+			(abituguru_write(data,
+			ABIT_UGURU_SENSOR_BANK1 + 2, attr->index,
+			data->bank1_settings[attr->index], 3) < 1)) {
+		data->bank1_settings[attr->index][0] = orig_val;
+		ret = -EIO;
+	}
+	mutex_unlock(&data->update_lock);
+	return ret;
+}
+
+static ssize_t store_bank2_mask(struct device *dev,
+	struct device_attribute *devattr, const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct abituguru_data *data = dev_get_drvdata(dev);
+	int mask = simple_strtoul(buf, NULL, 10);
+	ssize_t ret = count;
+	u8 orig_val;
+
+	mutex_lock(&data->update_lock);
+	orig_val = data->bank2_settings[attr->index][0];
+
+	if (mask)
+		data->bank2_settings[attr->index][0] |= attr->nr;
+	else
+		data->bank2_settings[attr->index][0] &= ~attr->nr;
+
+	if ((data->bank2_settings[attr->index][0] != orig_val) &&
+			(abituguru_write(data,
+			ABIT_UGURU_SENSOR_BANK2 + 2, attr->index,
+			data->bank2_settings[attr->index], 2) < 1)) {
+		data->bank2_settings[attr->index][0] = orig_val;
+		ret = -EIO;
+	}
+	mutex_unlock(&data->update_lock);
+	return ret;
+}
+
+/* Fan PWM (speed control) */
+static ssize_t show_pwm_setting(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct abituguru_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%d\n", data->pwm_settings[attr->index][attr->nr] *
+		abituguru_pwm_settings_multiplier[attr->nr]);
+}
+
+static ssize_t store_pwm_setting(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct abituguru_data *data = dev_get_drvdata(dev);
+	u8 min, val = (simple_strtoul(buf, NULL, 10) +
+		abituguru_pwm_settings_multiplier[attr->nr]/2) /
+		abituguru_pwm_settings_multiplier[attr->nr];
+	ssize_t ret = count;
+
+	/* special case pwm1 min pwm% */
+	if ((attr->index == 0) && ((attr->nr == 1) || (attr->nr == 2)))
+		min = 77;
+	else
+		min = abituguru_pwm_min[attr->nr];
+
+	/* this check can be done before taking the lock */
+	if ((val < min) || (val > abituguru_pwm_max[attr->nr]))
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	/* this check needs to be done after taking the lock */
+	if ((attr->nr & 1) &&
+			(val >= data->pwm_settings[attr->index][attr->nr + 1]))
+		ret = -EINVAL;
+	else if (!(attr->nr & 1) &&
+			(val <= data->pwm_settings[attr->index][attr->nr - 1]))
+		ret = -EINVAL;
+	else if (data->pwm_settings[attr->index][attr->nr] != val) {
+		u8 orig_val = data->pwm_settings[attr->index][attr->nr];
+		data->pwm_settings[attr->index][attr->nr] = val;
+		if (abituguru_write(data, ABIT_UGURU_FAN_PWM + 1,
+				attr->index, data->pwm_settings[attr->index],
+				5) <= attr->nr) {
+			data->pwm_settings[attr->index][attr->nr] =
+				orig_val;
+			ret = -EIO;
+		}
+	}
+	mutex_unlock(&data->update_lock);
+	return ret;
+}
+
+static ssize_t show_pwm_sensor(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct abituguru_data *data = dev_get_drvdata(dev);
+	int i;
+	/* We need to walk to the temp sensor addresses to find what
+	   the userspace id of the configured temp sensor is. */
+	for (i = 0; i < data->bank1_sensors[ABIT_UGURU_TEMP_SENSOR]; i++)
+		if (data->bank1_address[ABIT_UGURU_TEMP_SENSOR][i] ==
+				(data->pwm_settings[attr->index][0] & 0x0F))
+			return sprintf(buf, "%d\n", i+1);
+
+	return -ENXIO;
+}
+
+static ssize_t store_pwm_sensor(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct abituguru_data *data = dev_get_drvdata(dev);
+	unsigned long val = simple_strtoul(buf, NULL, 10) - 1;
+	ssize_t ret = count;
+
+	mutex_lock(&data->update_lock);
+	if (val < data->bank1_sensors[ABIT_UGURU_TEMP_SENSOR]) {
+		u8 orig_val = data->pwm_settings[attr->index][0];
+		u8 address = data->bank1_address[ABIT_UGURU_TEMP_SENSOR][val];
+		data->pwm_settings[attr->index][0] &= 0xF0;
+		data->pwm_settings[attr->index][0] |= address;
+		if (data->pwm_settings[attr->index][0] != orig_val) {
+			if (abituguru_write(data, ABIT_UGURU_FAN_PWM + 1,
+					attr->index,
+					data->pwm_settings[attr->index],
+					5) < 1) {
+				data->pwm_settings[attr->index][0] = orig_val;
+				ret = -EIO;
+			}
+		}
+	}
+	else
+		ret = -EINVAL;
+	mutex_unlock(&data->update_lock);
+	return ret;
+}
+
+static ssize_t show_pwm_enable(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct abituguru_data *data = dev_get_drvdata(dev);
+	int res = 0;
+	if (data->pwm_settings[attr->index][0] & ABIT_UGURU_FAN_PWM_ENABLE)
+		res = 2;
+	return sprintf(buf, "%d\n", res);
+}
+
+static ssize_t store_pwm_enable(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct abituguru_data *data = dev_get_drvdata(dev);
+	u8 orig_val, user_val = simple_strtoul(buf, NULL, 10);
+	ssize_t ret = count;
+
+	mutex_lock(&data->update_lock);
+	orig_val = data->pwm_settings[attr->index][0];
+	switch (user_val) {
+		case 0:
+			data->pwm_settings[attr->index][0] &=
+				~ABIT_UGURU_FAN_PWM_ENABLE;
+			break;
+		case 2:
+			data->pwm_settings[attr->index][0] |=
+				ABIT_UGURU_FAN_PWM_ENABLE;
+			break;
+		default:
+			ret = -EINVAL;
+	}
+	if ((data->pwm_settings[attr->index][0] != orig_val) &&
+			(abituguru_write(data, ABIT_UGURU_FAN_PWM + 1,
+			attr->index, data->pwm_settings[attr->index],
+			5) < 1)) {
+		data->pwm_settings[attr->index][0] = orig_val;
+		ret = -EIO;
+	}
+	mutex_unlock(&data->update_lock);
+	return ret;
+}
+
+static ssize_t show_name(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	return sprintf(buf, "%s\n", ABIT_UGURU_NAME);
+}
+
+/* Sysfs attr templates, the real entries are generated automatically. */
+static const
+struct sensor_device_attribute_2 abituguru_sysfs_bank1_templ[2][9] = {
+	{
+	SENSOR_ATTR_2(in%d_input, 0444, show_bank1_value, NULL, 0, 0),
+	SENSOR_ATTR_2(in%d_min, 0644, show_bank1_setting,
+		store_bank1_setting, 1, 0),
+	SENSOR_ATTR_2(in%d_min_alarm, 0444, show_bank1_alarm, NULL,
+		ABIT_UGURU_VOLT_LOW_ALARM_FLAG, 0),
+	SENSOR_ATTR_2(in%d_max, 0644, show_bank1_setting,
+		store_bank1_setting, 2, 0),
+	SENSOR_ATTR_2(in%d_max_alarm, 0444, show_bank1_alarm, NULL,
+		ABIT_UGURU_VOLT_HIGH_ALARM_FLAG, 0),
+	SENSOR_ATTR_2(in%d_beep, 0644, show_bank1_mask,
+		store_bank1_mask, ABIT_UGURU_BEEP_ENABLE, 0),
+	SENSOR_ATTR_2(in%d_shutdown, 0644, show_bank1_mask,
+		store_bank1_mask, ABIT_UGURU_SHUTDOWN_ENABLE, 0),
+	SENSOR_ATTR_2(in%d_min_alarm_enable, 0644, show_bank1_mask,
+		store_bank1_mask, ABIT_UGURU_VOLT_LOW_ALARM_ENABLE, 0),
+	SENSOR_ATTR_2(in%d_max_alarm_enable, 0644, show_bank1_mask,
+		store_bank1_mask, ABIT_UGURU_VOLT_HIGH_ALARM_ENABLE, 0),
+	}, {
+	SENSOR_ATTR_2(temp%d_input, 0444, show_bank1_value, NULL, 0, 0),
+	SENSOR_ATTR_2(temp%d_alarm, 0444, show_bank1_alarm, NULL,
+		ABIT_UGURU_TEMP_HIGH_ALARM_FLAG, 0),
+	SENSOR_ATTR_2(temp%d_max, 0644, show_bank1_setting,
+		store_bank1_setting, 1, 0),
+	SENSOR_ATTR_2(temp%d_crit, 0644, show_bank1_setting,
+		store_bank1_setting, 2, 0),
+	SENSOR_ATTR_2(temp%d_beep, 0644, show_bank1_mask,
+		store_bank1_mask, ABIT_UGURU_BEEP_ENABLE, 0),
+	SENSOR_ATTR_2(temp%d_shutdown, 0644, show_bank1_mask,
+		store_bank1_mask, ABIT_UGURU_SHUTDOWN_ENABLE, 0),
+	SENSOR_ATTR_2(temp%d_alarm_enable, 0644, show_bank1_mask,
+		store_bank1_mask, ABIT_UGURU_TEMP_HIGH_ALARM_ENABLE, 0),
+	}
+};
+
+static const struct sensor_device_attribute_2 abituguru_sysfs_fan_templ[6] = {
+	SENSOR_ATTR_2(fan%d_input, 0444, show_bank2_value, NULL, 0, 0),
+	SENSOR_ATTR_2(fan%d_alarm, 0444, show_bank2_alarm, NULL, 0, 0),
+	SENSOR_ATTR_2(fan%d_min, 0644, show_bank2_setting,
+		store_bank2_setting, 1, 0),
+	SENSOR_ATTR_2(fan%d_beep, 0644, show_bank2_mask,
+		store_bank2_mask, ABIT_UGURU_BEEP_ENABLE, 0),
+	SENSOR_ATTR_2(fan%d_shutdown, 0644, show_bank2_mask,
+		store_bank2_mask, ABIT_UGURU_SHUTDOWN_ENABLE, 0),
+	SENSOR_ATTR_2(fan%d_alarm_enable, 0644, show_bank2_mask,
+		store_bank2_mask, ABIT_UGURU_FAN_LOW_ALARM_ENABLE, 0),
+};
+
+static const struct sensor_device_attribute_2 abituguru_sysfs_pwm_templ[6] = {
+	SENSOR_ATTR_2(pwm%d_enable, 0644, show_pwm_enable,
+		store_pwm_enable, 0, 0),
+	SENSOR_ATTR_2(pwm%d_auto_channels_temp, 0644, show_pwm_sensor,
+		store_pwm_sensor, 0, 0),
+	SENSOR_ATTR_2(pwm%d_auto_point1_pwm, 0644, show_pwm_setting,
+		store_pwm_setting, 1, 0),
+	SENSOR_ATTR_2(pwm%d_auto_point2_pwm, 0644, show_pwm_setting,
+		store_pwm_setting, 2, 0),
+	SENSOR_ATTR_2(pwm%d_auto_point1_temp, 0644, show_pwm_setting,
+		store_pwm_setting, 3, 0),
+	SENSOR_ATTR_2(pwm%d_auto_point2_temp, 0644, show_pwm_setting,
+		store_pwm_setting, 4, 0),
+};
+
+static struct sensor_device_attribute_2 abituguru_sysfs_attr[] = {
+	SENSOR_ATTR_2(name, 0444, show_name, NULL, 0, 0),
+};
+
+static int __devinit abituguru_probe(struct platform_device *pdev)
+{
+	struct abituguru_data *data;
+	int i, j, used, sysfs_names_free, sysfs_attr_i, res = -ENODEV;
+	char *sysfs_filename;
+
+	/* El weirdo probe order, to keep the sysfs order identical to the
+	   BIOS and window-appliction listing order. */
+	const u8 probe_order[ABIT_UGURU_MAX_BANK1_SENSORS] = {
+		0x00, 0x01, 0x03, 0x04, 0x0A, 0x08, 0x0E, 0x02,
+		0x09, 0x06, 0x05, 0x0B, 0x0F, 0x0D, 0x07, 0x0C };
+
+	if (!(data = kzalloc(sizeof(struct abituguru_data), GFP_KERNEL)))
+		return -ENOMEM;
+
+	data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start;
+	mutex_init(&data->update_lock);
+	platform_set_drvdata(pdev, data);
+
+	/* See if the uGuru is ready */
+	if (inb_p(data->addr + ABIT_UGURU_DATA) == ABIT_UGURU_STATUS_INPUT)
+		data->uguru_ready = 1;
+
+	/* Completely read the uGuru this has 2 purposes:
+	   - testread / see if one really is there.
+	   - make an in memory copy of all the uguru settings for future use. */
+	if (abituguru_read(data, ABIT_UGURU_ALARM_BANK, 0,
+			data->alarms, 3, ABIT_UGURU_MAX_RETRIES) != 3)
+		goto abituguru_probe_error;
+
+	for (i = 0; i < ABIT_UGURU_MAX_BANK1_SENSORS; i++) {
+		if (abituguru_read(data, ABIT_UGURU_SENSOR_BANK1, i,
+				&data->bank1_value[i], 1,
+				ABIT_UGURU_MAX_RETRIES) != 1)
+			goto abituguru_probe_error;
+		if (abituguru_read(data, ABIT_UGURU_SENSOR_BANK1+1, i,
+				data->bank1_settings[i], 3,
+				ABIT_UGURU_MAX_RETRIES) != 3)
+			goto abituguru_probe_error;
+	}
+	/* Note: We don't know how many bank2 sensors / pwms there really are,
+	   but in order to "detect" this we need to read the maximum amount
+	   anyways. If we read sensors/pwms not there we'll just read crap
+	   this can't hurt. We need the detection because we don't want
+	   unwanted writes, which will hurt! */
+	for (i = 0; i < ABIT_UGURU_MAX_BANK2_SENSORS; i++) {
+		if (abituguru_read(data, ABIT_UGURU_SENSOR_BANK2, i,
+				&data->bank2_value[i], 1,
+				ABIT_UGURU_MAX_RETRIES) != 1)
+			goto abituguru_probe_error;
+		if (abituguru_read(data, ABIT_UGURU_SENSOR_BANK2+1, i,
+				data->bank2_settings[i], 2,
+				ABIT_UGURU_MAX_RETRIES) != 2)
+			goto abituguru_probe_error;
+	}
+	for (i = 0; i < ABIT_UGURU_MAX_PWMS; i++) {
+		if (abituguru_read(data, ABIT_UGURU_FAN_PWM, i,
+				data->pwm_settings[i], 5,
+				ABIT_UGURU_MAX_RETRIES) != 5)
+			goto abituguru_probe_error;
+	}
+	data->last_updated = jiffies;
+
+	/* Detect sensor types and fill the sysfs attr for bank1 */
+	sysfs_attr_i = 0;
+	sysfs_filename = data->sysfs_names;
+	sysfs_names_free = ABITUGURU_SYSFS_NAMES_LENGTH;
+	for (i = 0; i < ABIT_UGURU_MAX_BANK1_SENSORS; i++) {
+		res = abituguru_detect_bank1_sensor_type(data, probe_order[i]);
+		if (res < 0)
+			goto abituguru_probe_error;
+		if (res == ABIT_UGURU_NC)
+			continue;
+
+		/* res 1 (temp) sensors have 7 sysfs entries, 0 (in) 9 */
+		for (j = 0; j < (res ? 7 : 9); j++) {
+			used = snprintf(sysfs_filename, sysfs_names_free,
+				abituguru_sysfs_bank1_templ[res][j].dev_attr.
+				attr.name, data->bank1_sensors[res] + res)
+				+ 1;
+			data->sysfs_attr[sysfs_attr_i] =
+				abituguru_sysfs_bank1_templ[res][j];
+			data->sysfs_attr[sysfs_attr_i].dev_attr.attr.name =
+				sysfs_filename;
+			data->sysfs_attr[sysfs_attr_i].index = probe_order[i];
+			sysfs_filename += used;
+			sysfs_names_free -= used;
+			sysfs_attr_i++;
+		}
+		data->bank1_max_value[probe_order[i]] =
+			abituguru_bank1_max_value[res];
+		data->bank1_address[res][data->bank1_sensors[res]] =
+			probe_order[i];
+		data->bank1_sensors[res]++;
+	}
+	/* Detect number of sensors and fill the sysfs attr for bank2 (fans) */
+	abituguru_detect_no_bank2_sensors(data);
+	for (i = 0; i < data->bank2_sensors; i++) {
+		for (j = 0; j < ARRAY_SIZE(abituguru_sysfs_fan_templ); j++) {
+			used = snprintf(sysfs_filename, sysfs_names_free,
+				abituguru_sysfs_fan_templ[j].dev_attr.attr.name,
+				i + 1) + 1;
+			data->sysfs_attr[sysfs_attr_i] =
+				abituguru_sysfs_fan_templ[j];
+			data->sysfs_attr[sysfs_attr_i].dev_attr.attr.name =
+				sysfs_filename;
+			data->sysfs_attr[sysfs_attr_i].index = i;
+			sysfs_filename += used;
+			sysfs_names_free -= used;
+			sysfs_attr_i++;
+		}
+	}
+	/* Detect number of sensors and fill the sysfs attr for pwms */
+	abituguru_detect_no_pwms(data);
+	for (i = 0; i < data->pwms; i++) {
+		for (j = 0; j < ARRAY_SIZE(abituguru_sysfs_pwm_templ); j++) {
+			used = snprintf(sysfs_filename, sysfs_names_free,
+				abituguru_sysfs_pwm_templ[j].dev_attr.attr.name,
+				i + 1) + 1;
+			data->sysfs_attr[sysfs_attr_i] =
+				abituguru_sysfs_pwm_templ[j];
+			data->sysfs_attr[sysfs_attr_i].dev_attr.attr.name =
+				sysfs_filename;
+			data->sysfs_attr[sysfs_attr_i].index = i;
+			sysfs_filename += used;
+			sysfs_names_free -= used;
+			sysfs_attr_i++;
+		}
+	}
+	/* Fail safe check, this should never happen! */
+	if (sysfs_names_free < 0) {
+		printk(KERN_ERR ABIT_UGURU_NAME ": Fatal error ran out of "
+		       "space for sysfs attr names. This should never "
+		       "happen please report to the abituguru maintainer "
+		       "(see MAINTAINERS)\n");
+		res = -ENAMETOOLONG;
+		goto abituguru_probe_error;
+	}
+	printk(KERN_INFO ABIT_UGURU_NAME ": found Abit uGuru\n");
+
+	/* Register sysfs hooks */
+	for (i = 0; i < sysfs_attr_i; i++)
+		if (device_create_file(&pdev->dev,
+				&data->sysfs_attr[i].dev_attr))
+			goto abituguru_probe_error;
+	for (i = 0; i < ARRAY_SIZE(abituguru_sysfs_attr); i++)
+		if (device_create_file(&pdev->dev,
+				&abituguru_sysfs_attr[i].dev_attr))
+			goto abituguru_probe_error;
+
+	data->hwmon_dev = hwmon_device_register(&pdev->dev);
+	if (!IS_ERR(data->hwmon_dev))
+		return 0; /* success */
+
+	res = PTR_ERR(data->hwmon_dev);
+abituguru_probe_error:
+	for (i = 0; data->sysfs_attr[i].dev_attr.attr.name; i++)
+		device_remove_file(&pdev->dev, &data->sysfs_attr[i].dev_attr);
+	for (i = 0; i < ARRAY_SIZE(abituguru_sysfs_attr); i++)
+		device_remove_file(&pdev->dev,
+			&abituguru_sysfs_attr[i].dev_attr);
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+	return res;
+}
+
+static int __devexit abituguru_remove(struct platform_device *pdev)
+{
+	int i;
+	struct abituguru_data *data = platform_get_drvdata(pdev);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	for (i = 0; data->sysfs_attr[i].dev_attr.attr.name; i++)
+		device_remove_file(&pdev->dev, &data->sysfs_attr[i].dev_attr);
+	for (i = 0; i < ARRAY_SIZE(abituguru_sysfs_attr); i++)
+		device_remove_file(&pdev->dev,
+			&abituguru_sysfs_attr[i].dev_attr);
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+
+	return 0;
+}
+
+static struct abituguru_data *abituguru_update_device(struct device *dev)
+{
+	int i, err;
+	struct abituguru_data *data = dev_get_drvdata(dev);
+	/* fake a complete successful read if no update necessary. */
+	char success = 1;
+
+	mutex_lock(&data->update_lock);
+	if (time_after(jiffies, data->last_updated + HZ)) {
+		success = 0;
+		if ((err = abituguru_read(data, ABIT_UGURU_ALARM_BANK, 0,
+				data->alarms, 3, 0)) != 3)
+			goto LEAVE_UPDATE;
+		for (i = 0; i < ABIT_UGURU_MAX_BANK1_SENSORS; i++) {
+			if ((err = abituguru_read(data,
+					ABIT_UGURU_SENSOR_BANK1, i,
+					&data->bank1_value[i], 1, 0)) != 1)
+				goto LEAVE_UPDATE;
+			if ((err = abituguru_read(data,
+					ABIT_UGURU_SENSOR_BANK1 + 1, i,
+					data->bank1_settings[i], 3, 0)) != 3)
+				goto LEAVE_UPDATE;
+		}
+		for (i = 0; i < data->bank2_sensors; i++)
+			if ((err = abituguru_read(data,
+					ABIT_UGURU_SENSOR_BANK2, i,
+					&data->bank2_value[i], 1, 0)) != 1)
+				goto LEAVE_UPDATE;
+		/* success! */
+		success = 1;
+		data->update_timeouts = 0;
+LEAVE_UPDATE:
+		/* handle timeout condition */
+		if (!success && (err == -EBUSY || err >= 0)) {
+			/* No overflow please */
+			if (data->update_timeouts < 255u)
+				data->update_timeouts++;
+			if (data->update_timeouts <= ABIT_UGURU_MAX_TIMEOUTS) {
+				ABIT_UGURU_DEBUG(3, "timeout exceeded, will "
+					"try again next update\n");
+				/* Just a timeout, fake a successful read */
+				success = 1;
+			} else
+				ABIT_UGURU_DEBUG(1, "timeout exceeded %d "
+					"times waiting for more input state\n",
+					(int)data->update_timeouts);
+		}
+		/* On success set last_updated */
+		if (success)
+			data->last_updated = jiffies;
+	}
+	mutex_unlock(&data->update_lock);
+
+	if (success)
+		return data;
+	else
+		return NULL;
+}
+
+#ifdef CONFIG_PM
+static int abituguru_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	struct abituguru_data *data = platform_get_drvdata(pdev);
+	/* make sure all communications with the uguru are done and no new
+	   ones are started */
+	mutex_lock(&data->update_lock);
+	return 0;
+}
+
+static int abituguru_resume(struct platform_device *pdev)
+{
+	struct abituguru_data *data = platform_get_drvdata(pdev);
+	/* See if the uGuru is still ready */
+	if (inb_p(data->addr + ABIT_UGURU_DATA) != ABIT_UGURU_STATUS_INPUT)
+		data->uguru_ready = 0;
+	mutex_unlock(&data->update_lock);
+	return 0;
+}
+#else
+#define abituguru_suspend	NULL
+#define abituguru_resume	NULL
+#endif /* CONFIG_PM */
+
+static struct platform_driver abituguru_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= ABIT_UGURU_NAME,
+	},
+	.probe		= abituguru_probe,
+	.remove		= __devexit_p(abituguru_remove),
+	.suspend	= abituguru_suspend,
+	.resume		= abituguru_resume,
+};
+
+static int __init abituguru_detect(void)
+{
+	/* See if there is an uguru there. After a reboot uGuru will hold 0x00
+	   at DATA and 0xAC, when this driver has already been loaded once
+	   DATA will hold 0x08. For most uGuru's CMD will hold 0xAC in either
+	   scenario but some will hold 0x00.
+	   Some uGuru's initally hold 0x09 at DATA and will only hold 0x08
+	   after reading CMD first, so CMD must be read first! */
+	u8 cmd_val = inb_p(ABIT_UGURU_BASE + ABIT_UGURU_CMD);
+	u8 data_val = inb_p(ABIT_UGURU_BASE + ABIT_UGURU_DATA);
+	if (((data_val == 0x00) || (data_val == 0x08)) &&
+	    ((cmd_val == 0x00) || (cmd_val == 0xAC)))
+		return ABIT_UGURU_BASE;
+
+	ABIT_UGURU_DEBUG(2, "no Abit uGuru found, data = 0x%02X, cmd = "
+		"0x%02X\n", (unsigned int)data_val, (unsigned int)cmd_val);
+
+	if (force) {
+		printk(KERN_INFO ABIT_UGURU_NAME ": Assuming Abit uGuru is "
+				"present because of \"force\" parameter\n");
+		return ABIT_UGURU_BASE;
+	}
+
+	/* No uGuru found */
+	return -ENODEV;
+}
+
+static struct platform_device *abituguru_pdev;
+
+static int __init abituguru_init(void)
+{
+	int address, err;
+	struct resource res = { .flags = IORESOURCE_IO };
+
+#ifdef CONFIG_DMI
+	const char *board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
+
+	/* safety check, refuse to load on non Abit motherboards */
+	if (!force && (!board_vendor ||
+			strcmp(board_vendor, "http://www.abit.com.tw/")))
+		return -ENODEV;
+#endif
+
+	address = abituguru_detect();
+	if (address < 0)
+		return address;
+
+	err = platform_driver_register(&abituguru_driver);
+	if (err)
+		goto exit;
+
+	abituguru_pdev = platform_device_alloc(ABIT_UGURU_NAME, address);
+	if (!abituguru_pdev) {
+		printk(KERN_ERR ABIT_UGURU_NAME
+			": Device allocation failed\n");
+		err = -ENOMEM;
+		goto exit_driver_unregister;
+	}
+
+	res.start = address;
+	res.end = address + ABIT_UGURU_REGION_LENGTH - 1;
+	res.name = ABIT_UGURU_NAME;
+
+	err = platform_device_add_resources(abituguru_pdev, &res, 1);
+	if (err) {
+		printk(KERN_ERR ABIT_UGURU_NAME
+			": Device resource addition failed (%d)\n", err);
+		goto exit_device_put;
+	}
+
+	err = platform_device_add(abituguru_pdev);
+	if (err) {
+		printk(KERN_ERR ABIT_UGURU_NAME
+			": Device addition failed (%d)\n", err);
+		goto exit_device_put;
+	}
+
+	return 0;
+
+exit_device_put:
+	platform_device_put(abituguru_pdev);
+exit_driver_unregister:
+	platform_driver_unregister(&abituguru_driver);
+exit:
+	return err;
+}
+
+static void __exit abituguru_exit(void)
+{
+	platform_device_unregister(abituguru_pdev);
+	platform_driver_unregister(&abituguru_driver);
+}
+
+MODULE_AUTHOR("Hans de Goede <j.w.r.degoede@hhs.nl>");
+MODULE_DESCRIPTION("Abit uGuru Sensor device");
+MODULE_LICENSE("GPL");
+
+module_init(abituguru_init);
+module_exit(abituguru_exit);
diff --git a/drivers/hwmon/abituguru3.c b/drivers/hwmon/abituguru3.c
new file mode 100644
index 0000000..fcf74eb
--- /dev/null
+++ b/drivers/hwmon/abituguru3.c
@@ -0,0 +1,1263 @@
+/*
+    abituguru3.c
+
+    Copyright (c) 2006-2008 Hans de Goede <j.w.r.degoede@hhs.nl>
+    Copyright (c) 2008 Alistair John Strachan <alistair@devzero.co.uk>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+/*
+    This driver supports the sensor part of revision 3 of the custom Abit uGuru
+    chip found on newer Abit uGuru motherboards. Note: because of lack of specs
+    only reading the sensors and their settings is supported.
+*/
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/mutex.h>
+#include <linux/err.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/dmi.h>
+#include <asm/io.h>
+
+/* uGuru3 bank addresses */
+#define ABIT_UGURU3_SETTINGS_BANK		0x01
+#define ABIT_UGURU3_SENSORS_BANK		0x08
+#define ABIT_UGURU3_MISC_BANK			0x09
+#define ABIT_UGURU3_ALARMS_START		0x1E
+#define ABIT_UGURU3_SETTINGS_START		0x24
+#define ABIT_UGURU3_VALUES_START		0x80
+#define ABIT_UGURU3_BOARD_ID			0x0A
+/* uGuru3 sensor bank flags */			     /* Alarm if: */
+#define ABIT_UGURU3_TEMP_HIGH_ALARM_ENABLE	0x01 /*  temp over warn */
+#define ABIT_UGURU3_VOLT_HIGH_ALARM_ENABLE	0x02 /*  volt over max */
+#define ABIT_UGURU3_VOLT_LOW_ALARM_ENABLE	0x04 /*  volt under min */
+#define ABIT_UGURU3_TEMP_HIGH_ALARM_FLAG	0x10 /* temp is over warn */
+#define ABIT_UGURU3_VOLT_HIGH_ALARM_FLAG	0x20 /* volt is over max */
+#define ABIT_UGURU3_VOLT_LOW_ALARM_FLAG		0x40 /* volt is under min */
+#define ABIT_UGURU3_FAN_LOW_ALARM_ENABLE	0x01 /*   fan under min */
+#define ABIT_UGURU3_BEEP_ENABLE			0x08 /* beep if alarm */
+#define ABIT_UGURU3_SHUTDOWN_ENABLE		0x80 /* shutdown if alarm */
+/* sensor types */
+#define ABIT_UGURU3_IN_SENSOR			0
+#define ABIT_UGURU3_TEMP_SENSOR			1
+#define ABIT_UGURU3_FAN_SENSOR			2
+
+/* Timeouts / Retries, if these turn out to need a lot of fiddling we could
+   convert them to params. Determined by trial and error. I assume this is
+   cpu-speed independent, since the ISA-bus and not the CPU should be the
+   bottleneck. */
+#define ABIT_UGURU3_WAIT_TIMEOUT		250
+/* Normally the 0xAC at the end of synchronize() is reported after the
+   first read, but sometimes not and we need to poll */
+#define ABIT_UGURU3_SYNCHRONIZE_TIMEOUT		5
+/* utility macros */
+#define ABIT_UGURU3_NAME			"abituguru3"
+#define ABIT_UGURU3_DEBUG(format, arg...)	\
+	if (verbose)				\
+		printk(KERN_DEBUG ABIT_UGURU3_NAME ": "	format , ## arg)
+
+/* Macros to help calculate the sysfs_names array length */
+#define ABIT_UGURU3_MAX_NO_SENSORS 26
+/* sum of strlen +1 of: in??_input\0, in??_{min,max}\0, in??_{min,max}_alarm\0,
+   in??_{min,max}_alarm_enable\0, in??_beep\0, in??_shutdown\0, in??_label\0 */
+#define ABIT_UGURU3_IN_NAMES_LENGTH (11 + 2 * 9 + 2 * 15 + 2 * 22 + 10 + 14 + 11)
+/* sum of strlen +1 of: temp??_input\0, temp??_max\0, temp??_crit\0,
+   temp??_alarm\0, temp??_alarm_enable\0, temp??_beep\0, temp??_shutdown\0,
+   temp??_label\0 */
+#define ABIT_UGURU3_TEMP_NAMES_LENGTH (13 + 11 + 12 + 13 + 20 + 12 + 16 + 13)
+/* sum of strlen +1 of: fan??_input\0, fan??_min\0, fan??_alarm\0,
+   fan??_alarm_enable\0, fan??_beep\0, fan??_shutdown\0, fan??_label\0 */
+#define ABIT_UGURU3_FAN_NAMES_LENGTH (12 + 10 + 12 + 19 + 11 + 15 + 12)
+/* Worst case scenario 16 in sensors (longest names_length) and the rest
+   temp sensors (second longest names_length). */
+#define ABIT_UGURU3_SYSFS_NAMES_LENGTH (16 * ABIT_UGURU3_IN_NAMES_LENGTH + \
+	(ABIT_UGURU3_MAX_NO_SENSORS - 16) * ABIT_UGURU3_TEMP_NAMES_LENGTH)
+
+/* All the macros below are named identical to the openguru2 program
+   reverse engineered by Louis Kruger, hence the names might not be 100%
+   logical. I could come up with better names, but I prefer keeping the names
+   identical so that this driver can be compared with his work more easily. */
+/* Two i/o-ports are used by uGuru */
+#define ABIT_UGURU3_BASE			0x00E0
+#define ABIT_UGURU3_CMD				0x00
+#define ABIT_UGURU3_DATA			0x04
+#define ABIT_UGURU3_REGION_LENGTH		5
+/* The wait_xxx functions return this on success and the last contents
+   of the DATA register (0-255) on failure. */
+#define ABIT_UGURU3_SUCCESS			-1
+/* uGuru status flags */
+#define ABIT_UGURU3_STATUS_READY_FOR_READ	0x01
+#define ABIT_UGURU3_STATUS_BUSY			0x02
+
+
+/* Structures */
+struct abituguru3_sensor_info {
+	const char* name;
+	int port;
+	int type;
+	int multiplier;
+	int divisor;
+	int offset;
+};
+
+struct abituguru3_motherboard_info {
+	u16 id;
+	const char *dmi_name;
+	/* + 1 -> end of sensors indicated by a sensor with name == NULL */
+	struct abituguru3_sensor_info sensors[ABIT_UGURU3_MAX_NO_SENSORS + 1];
+};
+
+/* For the Abit uGuru, we need to keep some data in memory.
+   The structure is dynamically allocated, at the same time when a new
+   abituguru3 device is allocated. */
+struct abituguru3_data {
+	struct device *hwmon_dev;	/* hwmon registered device */
+	struct mutex update_lock;	/* protect access to data and uGuru */
+	unsigned short addr;		/* uguru base address */
+	char valid;			/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+
+	/* For convenience the sysfs attr and their names are generated
+	   automatically. We have max 10 entries per sensor (for in sensors) */
+	struct sensor_device_attribute_2 sysfs_attr[ABIT_UGURU3_MAX_NO_SENSORS
+		* 10];
+
+	/* Buffer to store the dynamically generated sysfs names */
+	char sysfs_names[ABIT_UGURU3_SYSFS_NAMES_LENGTH];
+
+	/* Pointer to the sensors info for the detected motherboard */
+	const struct abituguru3_sensor_info *sensors;
+
+	/* The abituguru3 supports upto 48 sensors, and thus has registers
+	   sets for 48 sensors, for convienence reasons / simplicity of the
+	   code we always read and store all registers for all 48 sensors */
+
+	/* Alarms for all 48 sensors (1 bit per sensor) */
+	u8 alarms[48/8];
+
+	/* Value of all 48 sensors */
+	u8 value[48];
+
+	/* Settings of all 48 sensors, note in and temp sensors (the first 32
+	   sensors) have 3 bytes of settings, while fans only have 2 bytes,
+	   for convenience we use 3 bytes for all sensors */
+	u8 settings[48][3];
+};
+
+
+/* Constants */
+static const struct abituguru3_motherboard_info abituguru3_motherboards[] = {
+	{ 0x000C, NULL /* Unknown, need DMI string */, {
+		{ "CPU Core",		 0, 0, 10, 1, 0 },
+		{ "DDR",		 1, 0, 10, 1, 0 },
+		{ "DDR VTT",		 2, 0, 10, 1, 0 },
+		{ "CPU VTT 1.2V",	 3, 0, 10, 1, 0 },
+		{ "MCH & PCIE 1.5V",	 4, 0, 10, 1, 0 },
+		{ "MCH 2.5V",		 5, 0, 20, 1, 0 },
+		{ "ICH 1.05V",		 6, 0, 10, 1, 0 },
+		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
+		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
+		{ "ATX +5V",		 9, 0, 30, 1, 0 },
+		{ "+3.3V",		10, 0, 20, 1, 0 },
+		{ "5VSB",		11, 0, 30, 1, 0 },
+		{ "CPU",		24, 1, 1, 1, 0 },
+		{ "System",		25, 1, 1, 1, 0 },
+		{ "PWM",		26, 1, 1, 1, 0 },
+		{ "CPU Fan",		32, 2, 60, 1, 0 },
+		{ "NB Fan",		33, 2, 60, 1, 0 },
+		{ "SYS FAN",		34, 2, 60, 1, 0 },
+		{ "AUX1 Fan",		35, 2, 60, 1, 0 },
+		{ NULL, 0, 0, 0, 0, 0 } }
+	},
+	{ 0x000D, NULL /* Abit AW8, need DMI string */, {
+		{ "CPU Core",		 0, 0, 10, 1, 0 },
+		{ "DDR",		 1, 0, 10, 1, 0 },
+		{ "DDR VTT",		 2, 0, 10, 1, 0 },
+		{ "CPU VTT 1.2V",	 3, 0, 10, 1, 0 },
+		{ "MCH & PCIE 1.5V",	 4, 0, 10, 1, 0 },
+		{ "MCH 2.5V",		 5, 0, 20, 1, 0 },
+		{ "ICH 1.05V",		 6, 0, 10, 1, 0 },
+		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
+		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
+		{ "ATX +5V",		 9, 0, 30, 1, 0 },
+		{ "+3.3V",		10, 0, 20, 1, 0 },
+		{ "5VSB",		11, 0, 30, 1, 0 },
+		{ "CPU",		24, 1, 1, 1, 0 },
+		{ "System",		25, 1, 1, 1, 0 },
+		{ "PWM1",		26, 1, 1, 1, 0 },
+		{ "PWM2",		27, 1, 1, 1, 0 },
+		{ "PWM3",		28, 1, 1, 1, 0 },
+		{ "PWM4",		29, 1, 1, 1, 0 },
+		{ "CPU Fan",		32, 2, 60, 1, 0 },
+		{ "NB Fan",		33, 2, 60, 1, 0 },
+		{ "SYS Fan",		34, 2, 60, 1, 0 },
+		{ "AUX1 Fan",		35, 2, 60, 1, 0 },
+		{ "AUX2 Fan",		36, 2, 60, 1, 0 },
+		{ "AUX3 Fan",		37, 2, 60, 1, 0 },
+		{ "AUX4 Fan",		38, 2, 60, 1, 0 },
+		{ "AUX5 Fan",		39, 2, 60, 1, 0 },
+		{ NULL, 0, 0, 0, 0, 0 } }
+	},
+	{ 0x000E, NULL /* AL-8, need DMI string */, {
+		{ "CPU Core",		 0, 0, 10, 1, 0 },
+		{ "DDR",		 1, 0, 10, 1, 0 },
+		{ "DDR VTT",		 2, 0, 10, 1, 0 },
+		{ "CPU VTT 1.2V",	 3, 0, 10, 1, 0 },
+		{ "MCH & PCIE 1.5V",	 4, 0, 10, 1, 0 },
+		{ "MCH 2.5V",		 5, 0, 20, 1, 0 },
+		{ "ICH 1.05V",		 6, 0, 10, 1, 0 },
+		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
+		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
+		{ "ATX +5V",		 9, 0, 30, 1, 0 },
+		{ "+3.3V",		10, 0, 20, 1, 0 },
+		{ "5VSB",		11, 0, 30, 1, 0 },
+		{ "CPU",		24, 1, 1, 1, 0 },
+		{ "System",		25, 1, 1, 1, 0 },
+		{ "PWM",		26, 1, 1, 1, 0 },
+		{ "CPU Fan",		32, 2, 60, 1, 0 },
+		{ "NB Fan",		33, 2, 60, 1, 0 },
+		{ "SYS Fan",		34, 2, 60, 1, 0 },
+		{ NULL, 0, 0, 0, 0, 0 } }
+	},
+	{ 0x000F, NULL /* Unknown, need DMI string */, {
+		{ "CPU Core",		 0, 0, 10, 1, 0 },
+		{ "DDR",		 1, 0, 10, 1, 0 },
+		{ "DDR VTT",		 2, 0, 10, 1, 0 },
+		{ "CPU VTT 1.2V",	 3, 0, 10, 1, 0 },
+		{ "MCH & PCIE 1.5V",	 4, 0, 10, 1, 0 },
+		{ "MCH 2.5V",		 5, 0, 20, 1, 0 },
+		{ "ICH 1.05V",		 6, 0, 10, 1, 0 },
+		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
+		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
+		{ "ATX +5V",		 9, 0, 30, 1, 0 },
+		{ "+3.3V",		10, 0, 20, 1, 0 },
+		{ "5VSB",		11, 0, 30, 1, 0 },
+		{ "CPU",		24, 1, 1, 1, 0 },
+		{ "System",		25, 1, 1, 1, 0 },
+		{ "PWM",		26, 1, 1, 1, 0 },
+		{ "CPU Fan",		32, 2, 60, 1, 0 },
+		{ "NB Fan",		33, 2, 60, 1, 0 },
+		{ "SYS Fan",		34, 2, 60, 1, 0 },
+		{ NULL, 0, 0, 0, 0, 0 } }
+	},
+	{ 0x0010, NULL /* Abit NI8 SLI GR, need DMI string */, {
+		{ "CPU Core",		 0, 0, 10, 1, 0 },
+		{ "DDR",		 1, 0, 10, 1, 0 },
+		{ "DDR VTT",		 2, 0, 10, 1, 0 },
+		{ "CPU VTT 1.2V",	 3, 0, 10, 1, 0 },
+		{ "NB 1.4V",		 4, 0, 10, 1, 0 },
+		{ "SB 1.5V",		 6, 0, 10, 1, 0 },
+		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
+		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
+		{ "ATX +5V",		 9, 0, 30, 1, 0 },
+		{ "+3.3V",		10, 0, 20, 1, 0 },
+		{ "5VSB",		11, 0, 30, 1, 0 },
+		{ "CPU",		24, 1, 1, 1, 0 },
+		{ "SYS",		25, 1, 1, 1, 0 },
+		{ "PWM",		26, 1, 1, 1, 0 },
+		{ "CPU Fan",		32, 2, 60, 1, 0 },
+		{ "NB Fan",		33, 2, 60, 1, 0 },
+		{ "SYS Fan",		34, 2, 60, 1, 0 },
+		{ "AUX1 Fan",		35, 2, 60, 1, 0 },
+		{ "OTES1 Fan",		36, 2, 60, 1, 0 },
+		{ NULL, 0, 0, 0, 0, 0 } }
+	},
+	{ 0x0011, "AT8 32X(ATI RD580-ULI M1575)", {
+		{ "CPU Core",		 0, 0, 10, 1, 0 },
+		{ "DDR",		 1, 0, 20, 1, 0 },
+		{ "DDR VTT",		 2, 0, 10, 1, 0 },
+		{ "CPU VDDA 2.5V",	 6, 0, 20, 1, 0 },
+		{ "NB 1.8V",		 4, 0, 10, 1, 0 },
+		{ "NB 1.8V Dual",	 5, 0, 10, 1, 0 },
+		{ "HTV 1.2",		 3, 0, 10, 1, 0 },
+		{ "PCIE 1.2V",		12, 0, 10, 1, 0 },
+		{ "NB 1.2V",		13, 0, 10, 1, 0 },
+		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
+		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
+		{ "ATX +5V",		 9, 0, 30, 1, 0 },
+		{ "+3.3V",		10, 0, 20, 1, 0 },
+		{ "5VSB",		11, 0, 30, 1, 0 },
+		{ "CPU",		24, 1, 1, 1, 0 },
+		{ "NB",			25, 1, 1, 1, 0 },
+		{ "System",		26, 1, 1, 1, 0 },
+		{ "PWM",		27, 1, 1, 1, 0 },
+		{ "CPU Fan",		32, 2, 60, 1, 0 },
+		{ "NB Fan",		33, 2, 60, 1, 0 },
+		{ "SYS Fan",		34, 2, 60, 1, 0 },
+		{ "AUX1 Fan",		35, 2, 60, 1, 0 },
+		{ "AUX2 Fan",		36, 2, 60, 1, 0 },
+		{ "AUX3 Fan",		37, 2, 60, 1, 0 },
+		{ NULL, 0, 0, 0, 0, 0 } }
+	},
+	{ 0x0012, NULL /* Abit AN8 32X, need DMI string */, {
+		{ "CPU Core",		 0, 0, 10, 1, 0 },
+		{ "DDR",		 1, 0, 20, 1, 0 },
+		{ "DDR VTT",		 2, 0, 10, 1, 0 },
+		{ "HyperTransport",	 3, 0, 10, 1, 0 },
+		{ "CPU VDDA 2.5V",	 5, 0, 20, 1, 0 },
+		{ "NB",			 4, 0, 10, 1, 0 },
+		{ "SB",			 6, 0, 10, 1, 0 },
+		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
+		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
+		{ "ATX +5V",		 9, 0, 30, 1, 0 },
+		{ "+3.3V",		10, 0, 20, 1, 0 },
+		{ "5VSB",		11, 0, 30, 1, 0 },
+		{ "CPU",		24, 1, 1, 1, 0 },
+		{ "SYS",		25, 1, 1, 1, 0 },
+		{ "PWM",		26, 1, 1, 1, 0 },
+		{ "CPU Fan",		32, 2, 60, 1, 0 },
+		{ "NB Fan",		33, 2, 60, 1, 0 },
+		{ "SYS Fan",		34, 2, 60, 1, 0 },
+		{ "AUX1 Fan",		36, 2, 60, 1, 0 },
+		{ NULL, 0, 0, 0, 0, 0 } }
+	},
+	{ 0x0013, NULL /* Abit AW8D, need DMI string */, {
+		{ "CPU Core",		 0, 0, 10, 1, 0 },
+		{ "DDR",		 1, 0, 10, 1, 0 },
+		{ "DDR VTT",		 2, 0, 10, 1, 0 },
+		{ "CPU VTT 1.2V",	 3, 0, 10, 1, 0 },
+		{ "MCH & PCIE 1.5V",	 4, 0, 10, 1, 0 },
+		{ "MCH 2.5V",		 5, 0, 20, 1, 0 },
+		{ "ICH 1.05V",		 6, 0, 10, 1, 0 },
+		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
+		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
+		{ "ATX +5V",		 9, 0, 30, 1, 0 },
+		{ "+3.3V",		10, 0, 20, 1, 0 },
+		{ "5VSB",		11, 0, 30, 1, 0 },
+		{ "CPU",		24, 1, 1, 1, 0 },
+		{ "System",		25, 1, 1, 1, 0 },
+		{ "PWM1",		26, 1, 1, 1, 0 },
+		{ "PWM2",		27, 1, 1, 1, 0 },
+		{ "PWM3",		28, 1, 1, 1, 0 },
+		{ "PWM4",		29, 1, 1, 1, 0 },
+		{ "CPU Fan",		32, 2, 60, 1, 0 },
+		{ "NB Fan",		33, 2, 60, 1, 0 },
+		{ "SYS Fan",		34, 2, 60, 1, 0 },
+		{ "AUX1 Fan",		35, 2, 60, 1, 0 },
+		{ "AUX2 Fan",		36, 2, 60, 1, 0 },
+		{ "AUX3 Fan",		37, 2, 60, 1, 0 },
+		{ "AUX4 Fan",		38, 2, 60, 1, 0 },
+		{ "AUX5 Fan",		39, 2, 60, 1, 0 },
+		{ NULL, 0, 0, 0, 0, 0 } }
+	},
+	{ 0x0014, NULL /* Abit AB9 Pro, need DMI string */, {
+		{ "CPU Core",		 0, 0, 10, 1, 0 },
+		{ "DDR",		 1, 0, 10, 1, 0 },
+		{ "DDR VTT",		 2, 0, 10, 1, 0 },
+		{ "CPU VTT 1.2V",	 3, 0, 10, 1, 0 },
+		{ "MCH & PCIE 1.5V",	 4, 0, 10, 1, 0 },
+		{ "MCH 2.5V",		 5, 0, 20, 1, 0 },
+		{ "ICH 1.05V",		 6, 0, 10, 1, 0 },
+		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
+		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
+		{ "ATX +5V",		 9, 0, 30, 1, 0 },
+		{ "+3.3V",		10, 0, 20, 1, 0 },
+		{ "5VSB",		11, 0, 30, 1, 0 },
+		{ "CPU",		24, 1, 1, 1, 0 },
+		{ "System",		25, 1, 1, 1, 0 },
+		{ "PWM",		26, 1, 1, 1, 0 },
+		{ "CPU Fan",		32, 2, 60, 1, 0 },
+		{ "NB Fan",		33, 2, 60, 1, 0 },
+		{ "SYS Fan",		34, 2, 60, 1, 0 },
+		{ NULL, 0, 0, 0, 0, 0 } }
+	},
+	{ 0x0015, NULL /* Unknown, need DMI string */, {
+		{ "CPU Core",		 0, 0, 10, 1, 0 },
+		{ "DDR",		 1, 0, 20, 1, 0 },
+		{ "DDR VTT",		 2, 0, 10, 1, 0 },
+		{ "HyperTransport",	 3, 0, 10, 1, 0 },
+		{ "CPU VDDA 2.5V",	 5, 0, 20, 1, 0 },
+		{ "NB",			 4, 0, 10, 1, 0 },
+		{ "SB",			 6, 0, 10, 1, 0 },
+		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
+		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
+		{ "ATX +5V",		 9, 0, 30, 1, 0 },
+		{ "+3.3V",		10, 0, 20, 1, 0 },
+		{ "5VSB",		11, 0, 30, 1, 0 },
+		{ "CPU",		24, 1, 1, 1, 0 },
+		{ "SYS",		25, 1, 1, 1, 0 },
+		{ "PWM",		26, 1, 1, 1, 0 },
+		{ "CPU Fan",		32, 2, 60, 1, 0 },
+		{ "NB Fan",		33, 2, 60, 1, 0 },
+		{ "SYS Fan",		34, 2, 60, 1, 0 },
+		{ "AUX1 Fan",		33, 2, 60, 1, 0 },
+		{ "AUX2 Fan",		35, 2, 60, 1, 0 },
+		{ "AUX3 Fan",		36, 2, 60, 1, 0 },
+		{ NULL, 0, 0, 0, 0, 0 } }
+	},
+	{ 0x0016, "AW9D-MAX       (Intel i975-ICH7)", {
+		{ "CPU Core",		 0, 0, 10, 1, 0 },
+		{ "DDR2",		 1, 0, 20, 1, 0 },
+		{ "DDR2 VTT",		 2, 0, 10, 1, 0 },
+		{ "CPU VTT 1.2V",	 3, 0, 10, 1, 0 },
+		{ "MCH & PCIE 1.5V",	 4, 0, 10, 1, 0 },
+		{ "MCH 2.5V",		 5, 0, 20, 1, 0 },
+		{ "ICH 1.05V",		 6, 0, 10, 1, 0 },
+		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
+		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
+		{ "ATX +5V",		 9, 0, 30, 1, 0 },
+		{ "+3.3V",		10, 0, 20, 1, 0 },
+		{ "5VSB",		11, 0, 30, 1, 0 },
+		{ "CPU",		24, 1, 1, 1, 0 },
+		{ "System",		25, 1, 1, 1, 0 },
+		{ "PWM1",		26, 1, 1, 1, 0 },
+		{ "PWM2",		27, 1, 1, 1, 0 },
+		{ "PWM3",		28, 1, 1, 1, 0 },
+		{ "PWM4",		29, 1, 1, 1, 0 },
+		{ "CPU Fan",		32, 2, 60, 1, 0 },
+		{ "NB Fan",		33, 2, 60, 1, 0 },
+		{ "SYS Fan",		34, 2, 60, 1, 0 },
+		{ "AUX1 Fan",		35, 2, 60, 1, 0 },
+		{ "AUX2 Fan",		36, 2, 60, 1, 0 },
+		{ "AUX3 Fan",		37, 2, 60, 1, 0 },
+		{ "OTES1 Fan",		38, 2, 60, 1, 0 },
+		{ NULL, 0, 0, 0, 0, 0 } }
+	},
+	{ 0x0017, NULL /* Unknown, need DMI string */, {
+		{ "CPU Core",		 0, 0, 10, 1, 0 },
+		{ "DDR2",		 1, 0, 20, 1, 0 },
+		{ "DDR2 VTT",		 2, 0, 10, 1, 0 },
+		{ "HyperTransport",	 3, 0, 10, 1, 0 },
+		{ "CPU VDDA 2.5V",	 6, 0, 20, 1, 0 },
+		{ "NB 1.8V",		 4, 0, 10, 1, 0 },
+		{ "NB 1.2V ",		13, 0, 10, 1, 0 },
+		{ "SB 1.2V",		 5, 0, 10, 1, 0 },
+		{ "PCIE 1.2V",		12, 0, 10, 1, 0 },
+		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
+		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
+		{ "ATX +5V",		 9, 0, 30, 1, 0 },
+		{ "ATX +3.3V",		10, 0, 20, 1, 0 },
+		{ "ATX 5VSB",		11, 0, 30, 1, 0 },
+		{ "CPU",		24, 1, 1, 1, 0 },
+		{ "System",		26, 1, 1, 1, 0 },
+		{ "PWM",		27, 1, 1, 1, 0 },
+		{ "CPU FAN",		32, 2, 60, 1, 0 },
+		{ "SYS FAN",		34, 2, 60, 1, 0 },
+		{ "AUX1 FAN",		35, 2, 60, 1, 0 },
+		{ "AUX2 FAN",		36, 2, 60, 1, 0 },
+		{ "AUX3 FAN",		37, 2, 60, 1, 0 },
+		{ NULL, 0, 0, 0, 0, 0 } }
+	},
+	{ 0x0018, NULL /* Unknown, need DMI string */, {
+		{ "CPU Core",		 0, 0, 10, 1, 0 },
+		{ "DDR2",		 1, 0, 20, 1, 0 },
+		{ "DDR2 VTT",		 2, 0, 10, 1, 0 },
+		{ "CPU VTT",		 3, 0, 10, 1, 0 },
+		{ "MCH 1.25V",		 4, 0, 10, 1, 0 },
+		{ "ICHIO 1.5V",		 5, 0, 10, 1, 0 },
+		{ "ICH 1.05V",		 6, 0, 10, 1, 0 },
+		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
+		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
+		{ "ATX +5V",		 9, 0, 30, 1, 0 },
+		{ "+3.3V",		10, 0, 20, 1, 0 },
+		{ "5VSB",		11, 0, 30, 1, 0 },
+		{ "CPU",		24, 1, 1, 1, 0 },
+		{ "System",		25, 1, 1, 1, 0 },
+		{ "PWM Phase1",		26, 1, 1, 1, 0 },
+		{ "PWM Phase2",		27, 1, 1, 1, 0 },
+		{ "PWM Phase3",		28, 1, 1, 1, 0 },
+		{ "PWM Phase4",		29, 1, 1, 1, 0 },
+		{ "PWM Phase5",		30, 1, 1, 1, 0 },
+		{ "CPU Fan",		32, 2, 60, 1, 0 },
+		{ "SYS Fan",		34, 2, 60, 1, 0 },
+		{ "AUX1 Fan",		33, 2, 60, 1, 0 },
+		{ "AUX2 Fan",		35, 2, 60, 1, 0 },
+		{ "AUX3 Fan",		36, 2, 60, 1, 0 },
+		{ NULL, 0, 0, 0, 0, 0 } }
+	},
+	{ 0x0019, NULL /* Unknown, need DMI string */, {
+		{ "CPU Core",		 7, 0, 10, 1, 0 },
+		{ "DDR2",		13, 0, 20, 1, 0 },
+		{ "DDR2 VTT",		14, 0, 10, 1, 0 },
+		{ "CPU VTT",		 3, 0, 20, 1, 0 },
+		{ "NB 1.2V",		 4, 0, 10, 1, 0 },
+		{ "SB 1.5V",		 6, 0, 10, 1, 0 },
+		{ "HyperTransport",	 5, 0, 10, 1, 0 },
+		{ "ATX +12V (24-Pin)",	12, 0, 60, 1, 0 },
+		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
+		{ "ATX +5V",		 9, 0, 30, 1, 0 },
+		{ "ATX +3.3V",		10, 0, 20, 1, 0 },
+		{ "ATX 5VSB",		11, 0, 30, 1, 0 },
+		{ "CPU",		24, 1, 1, 1, 0 },
+		{ "System",		25, 1, 1, 1, 0 },
+		{ "PWM Phase1",		26, 1, 1, 1, 0 },
+		{ "PWM Phase2",		27, 1, 1, 1, 0 },
+		{ "PWM Phase3",		28, 1, 1, 1, 0 },
+		{ "PWM Phase4",		29, 1, 1, 1, 0 },
+		{ "PWM Phase5",		30, 1, 1, 1, 0 },
+		{ "CPU FAN",		32, 2, 60, 1, 0 },
+		{ "SYS FAN",		34, 2, 60, 1, 0 },
+		{ "AUX1 FAN",		33, 2, 60, 1, 0 },
+		{ "AUX2 FAN",		35, 2, 60, 1, 0 },
+		{ "AUX3 FAN",		36, 2, 60, 1, 0 },
+		{ NULL, 0, 0, 0, 0, 0 } }
+	},
+	{ 0x001A, "IP35 Pro(Intel P35-ICH9R)", {
+		{ "CPU Core",		 0, 0, 10, 1, 0 },
+		{ "DDR2",		 1, 0, 20, 1, 0 },
+		{ "DDR2 VTT",		 2, 0, 10, 1, 0 },
+		{ "CPU VTT 1.2V",	 3, 0, 10, 1, 0 },
+		{ "MCH 1.25V",		 4, 0, 10, 1, 0 },
+		{ "ICHIO 1.5V",		 5, 0, 10, 1, 0 },
+		{ "ICH 1.05V",		 6, 0, 10, 1, 0 },
+		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
+		{ "ATX +12V (8-pin)",	 8, 0, 60, 1, 0 },
+		{ "ATX +5V",		 9, 0, 30, 1, 0 },
+		{ "+3.3V",		10, 0, 20, 1, 0 },
+		{ "5VSB",		11, 0, 30, 1, 0 },
+		{ "CPU",		24, 1, 1, 1, 0 },
+		{ "System",		25, 1, 1, 1, 0 },
+		{ "PWM",		26, 1, 1, 1, 0 },
+		{ "PWM Phase2",		27, 1, 1, 1, 0 },
+		{ "PWM Phase3",		28, 1, 1, 1, 0 },
+		{ "PWM Phase4",		29, 1, 1, 1, 0 },
+		{ "PWM Phase5",		30, 1, 1, 1, 0 },
+		{ "CPU Fan",		32, 2, 60, 1, 0 },
+		{ "SYS Fan",		34, 2, 60, 1, 0 },
+		{ "AUX1 Fan",		33, 2, 60, 1, 0 },
+		{ "AUX2 Fan",		35, 2, 60, 1, 0 },
+		{ "AUX3 Fan",		36, 2, 60, 1, 0 },
+		{ "AUX4 Fan",		37, 2, 60, 1, 0 },
+		{ NULL, 0, 0, 0, 0, 0 } }
+	},
+	{ 0x001B, NULL /* Unknown, need DMI string */, {
+		{ "CPU Core",		 0, 0, 10, 1, 0 },
+		{ "DDR3",		 1, 0, 20, 1, 0 },
+		{ "DDR3 VTT",		 2, 0, 10, 1, 0 },
+		{ "CPU VTT",		 3, 0, 10, 1, 0 },
+		{ "MCH 1.25V",		 4, 0, 10, 1, 0 },
+		{ "ICHIO 1.5V",		 5, 0, 10, 1, 0 },
+		{ "ICH 1.05V",		 6, 0, 10, 1, 0 },
+		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
+		{ "ATX +12V (8-pin)",	 8, 0, 60, 1, 0 },
+		{ "ATX +5V",		 9, 0, 30, 1, 0 },
+		{ "+3.3V",		10, 0, 20, 1, 0 },
+		{ "5VSB",		11, 0, 30, 1, 0 },
+		{ "CPU",		24, 1, 1, 1, 0 },
+		{ "System",		25, 1, 1, 1, 0 },
+		{ "PWM Phase1",		26, 1, 1, 1, 0 },
+		{ "PWM Phase2",		27, 1, 1, 1, 0 },
+		{ "PWM Phase3",		28, 1, 1, 1, 0 },
+		{ "PWM Phase4",		29, 1, 1, 1, 0 },
+		{ "PWM Phase5",		30, 1, 1, 1, 0 },
+		{ "CPU Fan",		32, 2, 60, 1, 0 },
+		{ "SYS Fan",		34, 2, 60, 1, 0 },
+		{ "AUX1 Fan",		33, 2, 60, 1, 0 },
+		{ "AUX2 Fan",		35, 2, 60, 1, 0 },
+		{ "AUX3 Fan",		36, 2, 60, 1, 0 },
+		{ NULL, 0, 0, 0, 0, 0 } }
+	},
+	{ 0x001C, NULL /* Unknown, need DMI string */, {
+		{ "CPU Core",		 0, 0, 10, 1, 0 },
+		{ "DDR2",		 1, 0, 20, 1, 0 },
+		{ "DDR2 VTT",		 2, 0, 10, 1, 0 },
+		{ "CPU VTT",		 3, 0, 10, 1, 0 },
+		{ "MCH 1.25V",		 4, 0, 10, 1, 0 },
+		{ "ICHIO 1.5V",		 5, 0, 10, 1, 0 },
+		{ "ICH 1.05V",		 6, 0, 10, 1, 0 },
+		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
+		{ "ATX +12V (8-pin)",	 8, 0, 60, 1, 0 },
+		{ "ATX +5V",		 9, 0, 30, 1, 0 },
+		{ "+3.3V",		10, 0, 20, 1, 0 },
+		{ "5VSB",		11, 0, 30, 1, 0 },
+		{ "CPU",		24, 1, 1, 1, 0 },
+		{ "System",		25, 1, 1, 1, 0 },
+		{ "PWM Phase1",		26, 1, 1, 1, 0 },
+		{ "PWM Phase2",		27, 1, 1, 1, 0 },
+		{ "PWM Phase3",		28, 1, 1, 1, 0 },
+		{ "PWM Phase4",		29, 1, 1, 1, 0 },
+		{ "PWM Phase5",		30, 1, 1, 1, 0 },
+		{ "CPU Fan",		32, 2, 60, 1, 0 },
+		{ "SYS Fan",		34, 2, 60, 1, 0 },
+		{ "AUX1 Fan",		33, 2, 60, 1, 0 },
+		{ "AUX2 Fan",		35, 2, 60, 1, 0 },
+		{ "AUX3 Fan",		36, 2, 60, 1, 0 },
+		{ NULL, 0, 0, 0, 0, 0 } }
+	},
+	{ 0x0000, NULL, { { NULL, 0, 0, 0, 0, 0 } } }
+};
+
+
+/* Insmod parameters */
+static int force;
+module_param(force, bool, 0);
+MODULE_PARM_DESC(force, "Set to one to force detection.");
+/* Default verbose is 1, since this driver is still in the testing phase */
+static int verbose = 1;
+module_param(verbose, bool, 0644);
+MODULE_PARM_DESC(verbose, "Enable/disable verbose error reporting");
+
+
+/* wait while the uguru is busy (usually after a write) */
+static int abituguru3_wait_while_busy(struct abituguru3_data *data)
+{
+	u8 x;
+	int timeout = ABIT_UGURU3_WAIT_TIMEOUT;
+
+	while ((x = inb_p(data->addr + ABIT_UGURU3_DATA)) &
+			ABIT_UGURU3_STATUS_BUSY) {
+		timeout--;
+		if (timeout == 0)
+			return x;
+		/* sleep a bit before our last try, to give the uGuru3 one
+		   last chance to respond. */
+		if (timeout == 1)
+			msleep(1);
+	}
+	return ABIT_UGURU3_SUCCESS;
+}
+
+/* wait till uguru is ready to be read */
+static int abituguru3_wait_for_read(struct abituguru3_data *data)
+{
+	u8 x;
+	int timeout = ABIT_UGURU3_WAIT_TIMEOUT;
+
+	while (!((x = inb_p(data->addr + ABIT_UGURU3_DATA)) &
+			ABIT_UGURU3_STATUS_READY_FOR_READ)) {
+		timeout--;
+		if (timeout == 0)
+			return x;
+		/* sleep a bit before our last try, to give the uGuru3 one
+		   last chance to respond. */
+		if (timeout == 1)
+			msleep(1);
+	}
+	return ABIT_UGURU3_SUCCESS;
+}
+
+/* This synchronizes us with the uGuru3's protocol state machine, this
+   must be done before each command. */
+static int abituguru3_synchronize(struct abituguru3_data *data)
+{
+	int x, timeout = ABIT_UGURU3_SYNCHRONIZE_TIMEOUT;
+
+	if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
+		ABIT_UGURU3_DEBUG("synchronize timeout during initial busy "
+			"wait, status: 0x%02x\n", x);
+		return -EIO;
+	}
+
+	outb(0x20, data->addr + ABIT_UGURU3_DATA);
+	if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
+		ABIT_UGURU3_DEBUG("synchronize timeout after sending 0x20, "
+			"status: 0x%02x\n", x);
+		return -EIO;
+	}
+
+	outb(0x10, data->addr + ABIT_UGURU3_CMD);
+	if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
+		ABIT_UGURU3_DEBUG("synchronize timeout after sending 0x10, "
+			"status: 0x%02x\n", x);
+		return -EIO;
+	}
+
+	outb(0x00, data->addr + ABIT_UGURU3_CMD);
+	if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
+		ABIT_UGURU3_DEBUG("synchronize timeout after sending 0x00, "
+			"status: 0x%02x\n", x);
+		return -EIO;
+	}
+
+	if ((x = abituguru3_wait_for_read(data)) != ABIT_UGURU3_SUCCESS) {
+		ABIT_UGURU3_DEBUG("synchronize timeout waiting for read, "
+			"status: 0x%02x\n", x);
+		return -EIO;
+	}
+
+	while ((x = inb(data->addr + ABIT_UGURU3_CMD)) != 0xAC) {
+		timeout--;
+		if (timeout == 0) {
+			ABIT_UGURU3_DEBUG("synchronize timeout cmd does not "
+				"hold 0xAC after synchronize, cmd: 0x%02x\n",
+				x);
+			return -EIO;
+		}
+		msleep(1);
+	}
+	return 0;
+}
+
+/* Read count bytes from sensor sensor_addr in bank bank_addr and store the
+   result in buf */
+static int abituguru3_read(struct abituguru3_data *data, u8 bank, u8 offset,
+	u8 count, u8 *buf)
+{
+	int i, x;
+
+	if ((x = abituguru3_synchronize(data)))
+		return x;
+
+	outb(0x1A, data->addr + ABIT_UGURU3_DATA);
+	if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
+		ABIT_UGURU3_DEBUG("read from 0x%02x:0x%02x timed out after "
+			"sending 0x1A, status: 0x%02x\n", (unsigned int)bank,
+			(unsigned int)offset, x);
+		return -EIO;
+	}
+
+	outb(bank, data->addr + ABIT_UGURU3_CMD);
+	if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
+		ABIT_UGURU3_DEBUG("read from 0x%02x:0x%02x timed out after "
+			"sending the bank, status: 0x%02x\n",
+			(unsigned int)bank, (unsigned int)offset, x);
+		return -EIO;
+	}
+
+	outb(offset, data->addr + ABIT_UGURU3_CMD);
+	if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
+		ABIT_UGURU3_DEBUG("read from 0x%02x:0x%02x timed out after "
+			"sending the offset, status: 0x%02x\n",
+			(unsigned int)bank, (unsigned int)offset, x);
+		return -EIO;
+	}
+
+	outb(count, data->addr + ABIT_UGURU3_CMD);
+	if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
+		ABIT_UGURU3_DEBUG("read from 0x%02x:0x%02x timed out after "
+			"sending the count, status: 0x%02x\n",
+			(unsigned int)bank, (unsigned int)offset, x);
+		return -EIO;
+	}
+
+	for (i = 0; i < count; i++) {
+		if ((x = abituguru3_wait_for_read(data)) !=
+				ABIT_UGURU3_SUCCESS) {
+			ABIT_UGURU3_DEBUG("timeout reading byte %d from "
+				"0x%02x:0x%02x, status: 0x%02x\n", i,
+				(unsigned int)bank, (unsigned int)offset, x);
+			break;
+		}
+		buf[i] = inb(data->addr + ABIT_UGURU3_CMD);
+	}
+	return i;
+}
+
+/* Sensor settings are stored 1 byte per offset with the bytes
+   placed add consecutive offsets. */
+static int abituguru3_read_increment_offset(struct abituguru3_data *data,
+					    u8 bank, u8 offset, u8 count,
+					    u8 *buf, int offset_count)
+{
+	int i, x;
+
+	for (i = 0; i < offset_count; i++)
+		if ((x = abituguru3_read(data, bank, offset + i, count,
+				buf + i * count)) != count)
+			return i * count + (i && (x < 0)) ? 0 : x;
+
+	return i * count;
+}
+
+/* Following are the sysfs callback functions. These functions expect:
+   sensor_device_attribute_2->index:   index into the data->sensors array
+   sensor_device_attribute_2->nr:      register offset, bitmask or NA. */
+static struct abituguru3_data *abituguru3_update_device(struct device *dev);
+
+static ssize_t show_value(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	int value;
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct abituguru3_data *data = abituguru3_update_device(dev);
+	const struct abituguru3_sensor_info *sensor;
+
+	if (!data)
+		return -EIO;
+
+	sensor = &data->sensors[attr->index];
+
+	/* are we reading a setting, or is this a normal read? */
+	if (attr->nr)
+		value = data->settings[sensor->port][attr->nr];
+	else
+		value = data->value[sensor->port];
+
+	/* convert the value */
+	value = (value * sensor->multiplier) / sensor->divisor +
+		sensor->offset;
+
+	/* alternatively we could update the sensors settings struct for this,
+	   but then its contents would differ from the windows sw ini files */
+	if (sensor->type == ABIT_UGURU3_TEMP_SENSOR)
+		value *= 1000;
+
+	return sprintf(buf, "%d\n", value);
+}
+
+static ssize_t show_alarm(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	int port;
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct abituguru3_data *data = abituguru3_update_device(dev);
+
+	if (!data)
+		return -EIO;
+
+	port = data->sensors[attr->index].port;
+
+	/* See if the alarm bit for this sensor is set and if a bitmask is
+	   given in attr->nr also check if the alarm matches the type of alarm
+	   we're looking for (for volt it can be either low or high). The type
+	   is stored in a few readonly bits in the settings of the sensor. */
+	if ((data->alarms[port / 8] & (0x01 << (port % 8))) &&
+			(!attr->nr || (data->settings[port][0] & attr->nr)))
+		return sprintf(buf, "1\n");
+	else
+		return sprintf(buf, "0\n");
+}
+
+static ssize_t show_mask(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct abituguru3_data *data = dev_get_drvdata(dev);
+
+	if (data->settings[data->sensors[attr->index].port][0] & attr->nr)
+		return sprintf(buf, "1\n");
+	else
+		return sprintf(buf, "0\n");
+}
+
+static ssize_t show_label(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct abituguru3_data *data = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%s\n", data->sensors[attr->index].name);
+}
+
+static ssize_t show_name(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	return sprintf(buf, "%s\n", ABIT_UGURU3_NAME);
+}
+
+/* Sysfs attr templates, the real entries are generated automatically. */
+static const
+struct sensor_device_attribute_2 abituguru3_sysfs_templ[3][10] = { {
+	SENSOR_ATTR_2(in%d_input, 0444, show_value, NULL, 0, 0),
+	SENSOR_ATTR_2(in%d_min, 0444, show_value, NULL, 1, 0),
+	SENSOR_ATTR_2(in%d_max, 0444, show_value, NULL, 2, 0),
+	SENSOR_ATTR_2(in%d_min_alarm, 0444, show_alarm, NULL,
+		ABIT_UGURU3_VOLT_LOW_ALARM_FLAG, 0),
+	SENSOR_ATTR_2(in%d_max_alarm, 0444, show_alarm, NULL,
+		ABIT_UGURU3_VOLT_HIGH_ALARM_FLAG, 0),
+	SENSOR_ATTR_2(in%d_beep, 0444, show_mask, NULL,
+		ABIT_UGURU3_BEEP_ENABLE, 0),
+	SENSOR_ATTR_2(in%d_shutdown, 0444, show_mask, NULL,
+		ABIT_UGURU3_SHUTDOWN_ENABLE, 0),
+	SENSOR_ATTR_2(in%d_min_alarm_enable, 0444, show_mask, NULL,
+		ABIT_UGURU3_VOLT_LOW_ALARM_ENABLE, 0),
+	SENSOR_ATTR_2(in%d_max_alarm_enable, 0444, show_mask, NULL,
+		ABIT_UGURU3_VOLT_HIGH_ALARM_ENABLE, 0),
+	SENSOR_ATTR_2(in%d_label, 0444, show_label, NULL, 0, 0)
+	}, {
+	SENSOR_ATTR_2(temp%d_input, 0444, show_value, NULL, 0, 0),
+	SENSOR_ATTR_2(temp%d_max, 0444, show_value, NULL, 1, 0),
+	SENSOR_ATTR_2(temp%d_crit, 0444, show_value, NULL, 2, 0),
+	SENSOR_ATTR_2(temp%d_alarm, 0444, show_alarm, NULL, 0, 0),
+	SENSOR_ATTR_2(temp%d_beep, 0444, show_mask, NULL,
+		ABIT_UGURU3_BEEP_ENABLE, 0),
+	SENSOR_ATTR_2(temp%d_shutdown, 0444, show_mask, NULL,
+		ABIT_UGURU3_SHUTDOWN_ENABLE, 0),
+	SENSOR_ATTR_2(temp%d_alarm_enable, 0444, show_mask, NULL,
+		ABIT_UGURU3_TEMP_HIGH_ALARM_ENABLE, 0),
+	SENSOR_ATTR_2(temp%d_label, 0444, show_label, NULL, 0, 0)
+	}, {
+	SENSOR_ATTR_2(fan%d_input, 0444, show_value, NULL, 0, 0),
+	SENSOR_ATTR_2(fan%d_min, 0444, show_value, NULL, 1, 0),
+	SENSOR_ATTR_2(fan%d_alarm, 0444, show_alarm, NULL, 0, 0),
+	SENSOR_ATTR_2(fan%d_beep, 0444, show_mask, NULL,
+		ABIT_UGURU3_BEEP_ENABLE, 0),
+	SENSOR_ATTR_2(fan%d_shutdown, 0444, show_mask, NULL,
+		ABIT_UGURU3_SHUTDOWN_ENABLE, 0),
+	SENSOR_ATTR_2(fan%d_alarm_enable, 0444, show_mask, NULL,
+		ABIT_UGURU3_FAN_LOW_ALARM_ENABLE, 0),
+	SENSOR_ATTR_2(fan%d_label, 0444, show_label, NULL, 0, 0)
+} };
+
+static struct sensor_device_attribute_2 abituguru3_sysfs_attr[] = {
+	SENSOR_ATTR_2(name, 0444, show_name, NULL, 0, 0),
+};
+
+static int __devinit abituguru3_probe(struct platform_device *pdev)
+{
+	const int no_sysfs_attr[3] = { 10, 8, 7 };
+	int sensor_index[3] = { 0, 1, 1 };
+	struct abituguru3_data *data;
+	int i, j, type, used, sysfs_names_free, sysfs_attr_i, res = -ENODEV;
+	char *sysfs_filename;
+	u8 buf[2];
+	u16 id;
+
+	if (!(data = kzalloc(sizeof(struct abituguru3_data), GFP_KERNEL)))
+		return -ENOMEM;
+
+	data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start;
+	mutex_init(&data->update_lock);
+	platform_set_drvdata(pdev, data);
+
+	/* Read the motherboard ID */
+	if ((i = abituguru3_read(data, ABIT_UGURU3_MISC_BANK,
+			ABIT_UGURU3_BOARD_ID, 2, buf)) != 2) {
+		goto abituguru3_probe_error;
+	}
+
+	/* Completely read the uGuru to see if one really is there */
+	if (!abituguru3_update_device(&pdev->dev))
+		goto abituguru3_probe_error;
+
+	/* lookup the ID in our motherboard table */
+	id = ((u16)buf[0] << 8) | (u16)buf[1];
+	for (i = 0; abituguru3_motherboards[i].id; i++)
+		if (abituguru3_motherboards[i].id == id)
+			break;
+	if (!abituguru3_motherboards[i].id) {
+		printk(KERN_ERR ABIT_UGURU3_NAME ": error unknown motherboard "
+			"ID: %04X. Please report this to the abituguru3 "
+			"maintainer (see MAINTAINERS)\n", (unsigned int)id);
+		goto abituguru3_probe_error;
+	}
+	data->sensors = abituguru3_motherboards[i].sensors;
+
+	printk(KERN_INFO ABIT_UGURU3_NAME ": found Abit uGuru3, motherboard "
+		"ID: %04X\n", (unsigned int)id);
+
+#ifdef CONFIG_DMI
+	if (!abituguru3_motherboards[i].dmi_name) {
+		printk(KERN_WARNING ABIT_UGURU3_NAME ": this motherboard was "
+			"not detected using DMI. Please send the output of "
+			"\"dmidecode\" to the abituguru3 maintainer "
+			"(see MAINTAINERS)\n");
+	}
+#endif
+
+	/* Fill the sysfs attr array */
+	sysfs_attr_i = 0;
+	sysfs_filename = data->sysfs_names;
+	sysfs_names_free = ABIT_UGURU3_SYSFS_NAMES_LENGTH;
+	for (i = 0; data->sensors[i].name; i++) {
+		/* Fail safe check, this should never happen! */
+		if (i >= ABIT_UGURU3_MAX_NO_SENSORS) {
+			printk(KERN_ERR ABIT_UGURU3_NAME
+				": Fatal error motherboard has more sensors "
+				"then ABIT_UGURU3_MAX_NO_SENSORS. This should "
+				"never happen please report to the abituguru3 "
+				"maintainer (see MAINTAINERS)\n");
+			res = -ENAMETOOLONG;
+			goto abituguru3_probe_error;
+		}
+		type = data->sensors[i].type;
+		for (j = 0; j < no_sysfs_attr[type]; j++) {
+			used = snprintf(sysfs_filename, sysfs_names_free,
+				abituguru3_sysfs_templ[type][j].dev_attr.attr.
+				name, sensor_index[type]) + 1;
+			data->sysfs_attr[sysfs_attr_i] =
+				abituguru3_sysfs_templ[type][j];
+			data->sysfs_attr[sysfs_attr_i].dev_attr.attr.name =
+				sysfs_filename;
+			data->sysfs_attr[sysfs_attr_i].index = i;
+			sysfs_filename += used;
+			sysfs_names_free -= used;
+			sysfs_attr_i++;
+		}
+		sensor_index[type]++;
+	}
+	/* Fail safe check, this should never happen! */
+	if (sysfs_names_free < 0) {
+		printk(KERN_ERR ABIT_UGURU3_NAME
+			": Fatal error ran out of space for sysfs attr names. "
+			"This should never happen please report to the "
+			"abituguru3 maintainer (see MAINTAINERS)\n");
+		res = -ENAMETOOLONG;
+		goto abituguru3_probe_error;
+	}
+
+	/* Register sysfs hooks */
+	for (i = 0; i < sysfs_attr_i; i++)
+		if (device_create_file(&pdev->dev,
+				&data->sysfs_attr[i].dev_attr))
+			goto abituguru3_probe_error;
+	for (i = 0; i < ARRAY_SIZE(abituguru3_sysfs_attr); i++)
+		if (device_create_file(&pdev->dev,
+				&abituguru3_sysfs_attr[i].dev_attr))
+			goto abituguru3_probe_error;
+
+	data->hwmon_dev = hwmon_device_register(&pdev->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		res = PTR_ERR(data->hwmon_dev);
+		goto abituguru3_probe_error;
+	}
+
+	return 0; /* success */
+
+abituguru3_probe_error:
+	for (i = 0; data->sysfs_attr[i].dev_attr.attr.name; i++)
+		device_remove_file(&pdev->dev, &data->sysfs_attr[i].dev_attr);
+	for (i = 0; i < ARRAY_SIZE(abituguru3_sysfs_attr); i++)
+		device_remove_file(&pdev->dev,
+			&abituguru3_sysfs_attr[i].dev_attr);
+	kfree(data);
+	return res;
+}
+
+static int __devexit abituguru3_remove(struct platform_device *pdev)
+{
+	int i;
+	struct abituguru3_data *data = platform_get_drvdata(pdev);
+
+	platform_set_drvdata(pdev, NULL);
+	hwmon_device_unregister(data->hwmon_dev);
+	for (i = 0; data->sysfs_attr[i].dev_attr.attr.name; i++)
+		device_remove_file(&pdev->dev, &data->sysfs_attr[i].dev_attr);
+	for (i = 0; i < ARRAY_SIZE(abituguru3_sysfs_attr); i++)
+		device_remove_file(&pdev->dev,
+			&abituguru3_sysfs_attr[i].dev_attr);
+	kfree(data);
+
+	return 0;
+}
+
+static struct abituguru3_data *abituguru3_update_device(struct device *dev)
+{
+	int i;
+	struct abituguru3_data *data = dev_get_drvdata(dev);
+
+	mutex_lock(&data->update_lock);
+	if (!data->valid || time_after(jiffies, data->last_updated + HZ)) {
+		/* Clear data->valid while updating */
+		data->valid = 0;
+		/* Read alarms */
+		if (abituguru3_read_increment_offset(data,
+				ABIT_UGURU3_SETTINGS_BANK,
+				ABIT_UGURU3_ALARMS_START,
+				1, data->alarms, 48/8) != (48/8))
+			goto LEAVE_UPDATE;
+		/* Read in and temp sensors (3 byte settings / sensor) */
+		for (i = 0; i < 32; i++) {
+			if (abituguru3_read(data, ABIT_UGURU3_SENSORS_BANK,
+					ABIT_UGURU3_VALUES_START + i,
+					1, &data->value[i]) != 1)
+				goto LEAVE_UPDATE;
+			if (abituguru3_read_increment_offset(data,
+					ABIT_UGURU3_SETTINGS_BANK,
+					ABIT_UGURU3_SETTINGS_START + i * 3,
+					1,
+					data->settings[i], 3) != 3)
+				goto LEAVE_UPDATE;
+		}
+		/* Read temp sensors (2 byte settings / sensor) */
+		for (i = 0; i < 16; i++) {
+			if (abituguru3_read(data, ABIT_UGURU3_SENSORS_BANK,
+					ABIT_UGURU3_VALUES_START + 32 + i,
+					1, &data->value[32 + i]) != 1)
+				goto LEAVE_UPDATE;
+			if (abituguru3_read_increment_offset(data,
+					ABIT_UGURU3_SETTINGS_BANK,
+					ABIT_UGURU3_SETTINGS_START + 32 * 3 +
+						i * 2, 1,
+					data->settings[32 + i], 2) != 2)
+				goto LEAVE_UPDATE;
+		}
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+LEAVE_UPDATE:
+	mutex_unlock(&data->update_lock);
+	if (data->valid)
+		return data;
+	else
+		return NULL;
+}
+
+#ifdef CONFIG_PM
+static int abituguru3_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	struct abituguru3_data *data = platform_get_drvdata(pdev);
+	/* make sure all communications with the uguru3 are done and no new
+	   ones are started */
+	mutex_lock(&data->update_lock);
+	return 0;
+}
+
+static int abituguru3_resume(struct platform_device *pdev)
+{
+	struct abituguru3_data *data = platform_get_drvdata(pdev);
+	mutex_unlock(&data->update_lock);
+	return 0;
+}
+#else
+#define abituguru3_suspend	NULL
+#define abituguru3_resume	NULL
+#endif /* CONFIG_PM */
+
+static struct platform_driver abituguru3_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= ABIT_UGURU3_NAME,
+	},
+	.probe	= abituguru3_probe,
+	.remove	= __devexit_p(abituguru3_remove),
+	.suspend = abituguru3_suspend,
+	.resume = abituguru3_resume
+};
+
+#ifdef CONFIG_DMI
+
+static int __init abituguru3_dmi_detect(void)
+{
+	const char *board_vendor, *board_name;
+	int i, err = (force) ? 1 : -ENODEV;
+
+	board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
+	if (!board_vendor || strcmp(board_vendor, "http://www.abit.com.tw/"))
+		return err;
+
+	board_name = dmi_get_system_info(DMI_BOARD_NAME);
+	if (!board_name)
+		return err;
+
+	for (i = 0; abituguru3_motherboards[i].id; i++) {
+		const char *dmi_name = abituguru3_motherboards[i].dmi_name;
+		if (dmi_name && !strcmp(dmi_name, board_name))
+			break;
+	}
+
+	if (!abituguru3_motherboards[i].id)
+		return 1;
+
+	return 0;
+}
+
+#else /* !CONFIG_DMI */
+
+static inline int abituguru3_dmi_detect(void)
+{
+	return 1;
+}
+
+#endif /* CONFIG_DMI */
+
+/* FIXME: Manual detection should die eventually; we need to collect stable
+ *        DMI model names first before we can rely entirely on CONFIG_DMI.
+ */
+
+static int __init abituguru3_detect(void)
+{
+	/* See if there is an uguru3 there. An idle uGuru3 will hold 0x00 or
+	   0x08 at DATA and 0xAC at CMD. Sometimes the uGuru3 will hold 0x05
+	   or 0x55 at CMD instead, why is unknown. */
+	u8 data_val = inb_p(ABIT_UGURU3_BASE + ABIT_UGURU3_DATA);
+	u8 cmd_val = inb_p(ABIT_UGURU3_BASE + ABIT_UGURU3_CMD);
+	if (((data_val == 0x00) || (data_val == 0x08)) &&
+			((cmd_val == 0xAC) || (cmd_val == 0x05) ||
+			 (cmd_val == 0x55)))
+		return 0;
+
+	ABIT_UGURU3_DEBUG("no Abit uGuru3 found, data = 0x%02X, cmd = "
+		"0x%02X\n", (unsigned int)data_val, (unsigned int)cmd_val);
+
+	if (force) {
+		printk(KERN_INFO ABIT_UGURU3_NAME ": Assuming Abit uGuru3 is "
+				"present because of \"force\" parameter\n");
+		return 0;
+	}
+
+	/* No uGuru3 found */
+	return -ENODEV;
+}
+
+static struct platform_device *abituguru3_pdev;
+
+static int __init abituguru3_init(void)
+{
+	struct resource res = { .flags = IORESOURCE_IO };
+	int err;
+
+	/* Attempt DMI detection first */
+	err = abituguru3_dmi_detect();
+	if (err < 0)
+		return err;
+
+	/* Fall back to manual detection if there was no exact
+	 * board name match, or force was specified.
+	 */
+	if (err > 0) {
+		err = abituguru3_detect();
+		if (err)
+			return err;
+	}
+
+	err = platform_driver_register(&abituguru3_driver);
+	if (err)
+		goto exit;
+
+	abituguru3_pdev = platform_device_alloc(ABIT_UGURU3_NAME,
+						ABIT_UGURU3_BASE);
+	if (!abituguru3_pdev) {
+		printk(KERN_ERR ABIT_UGURU3_NAME
+			": Device allocation failed\n");
+		err = -ENOMEM;
+		goto exit_driver_unregister;
+	}
+
+	res.start = ABIT_UGURU3_BASE;
+	res.end = ABIT_UGURU3_BASE + ABIT_UGURU3_REGION_LENGTH - 1;
+	res.name = ABIT_UGURU3_NAME;
+
+	err = platform_device_add_resources(abituguru3_pdev, &res, 1);
+	if (err) {
+		printk(KERN_ERR ABIT_UGURU3_NAME
+			": Device resource addition failed (%d)\n", err);
+		goto exit_device_put;
+	}
+
+	err = platform_device_add(abituguru3_pdev);
+	if (err) {
+		printk(KERN_ERR ABIT_UGURU3_NAME
+			": Device addition failed (%d)\n", err);
+		goto exit_device_put;
+	}
+
+	return 0;
+
+exit_device_put:
+	platform_device_put(abituguru3_pdev);
+exit_driver_unregister:
+	platform_driver_unregister(&abituguru3_driver);
+exit:
+	return err;
+}
+
+static void __exit abituguru3_exit(void)
+{
+	platform_device_unregister(abituguru3_pdev);
+	platform_driver_unregister(&abituguru3_driver);
+}
+
+MODULE_AUTHOR("Hans de Goede <j.w.r.degoede@hhs.nl>");
+MODULE_DESCRIPTION("Abit uGuru3 Sensor device");
+MODULE_LICENSE("GPL");
+
+module_init(abituguru3_init);
+module_exit(abituguru3_exit);
diff --git a/drivers/hwmon/ad7414.c b/drivers/hwmon/ad7414.c
new file mode 100644
index 0000000..bfda8c8
--- /dev/null
+++ b/drivers/hwmon/ad7414.c
@@ -0,0 +1,268 @@
+/*
+ * An hwmon driver for the Analog Devices AD7414
+ *
+ * Copyright 2006 Stefan Roese <sr at denx.de>, DENX Software Engineering
+ *
+ * Copyright (c) 2008 PIKA Technologies
+ *   Sean MacLennan <smaclennan@pikatech.com>
+ *
+ * Copyright (c) 2008 Spansion Inc.
+ *   Frank Edelhaeuser <frank.edelhaeuser at spansion.com>
+ *   (converted to "new style" I2C driver model, removed checkpatch.pl warnings)
+ *
+ * Based on ad7418.c
+ * Copyright 2006 Tower Technologies, Alessandro Zummo <a.zummo at towertech.it>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+
+
+/* AD7414 registers */
+#define AD7414_REG_TEMP		0x00
+#define AD7414_REG_CONF		0x01
+#define AD7414_REG_T_HIGH	0x02
+#define AD7414_REG_T_LOW	0x03
+
+static u8 AD7414_REG_LIMIT[] = { AD7414_REG_T_HIGH, AD7414_REG_T_LOW };
+
+struct ad7414_data {
+	struct device		*hwmon_dev;
+	struct mutex		lock;	/* atomic read data updates */
+	char			valid;	/* !=0 if following fields are valid */
+	unsigned long		next_update;	/* In jiffies */
+	s16			temp_input;	/* Register values */
+	s8			temps[ARRAY_SIZE(AD7414_REG_LIMIT)];
+};
+
+/* REG: (0.25C/bit, two's complement) << 6 */
+static inline int ad7414_temp_from_reg(s16 reg)
+{
+	/* use integer division instead of equivalent right shift to
+	 * guarantee arithmetic shift and preserve the sign
+	 */
+	return ((int)reg / 64) * 250;
+}
+
+static inline int ad7414_read(struct i2c_client *client, u8 reg)
+{
+	if (reg == AD7414_REG_TEMP) {
+		int value = i2c_smbus_read_word_data(client, reg);
+		return (value < 0) ? value : swab16(value);
+	} else
+		return i2c_smbus_read_byte_data(client, reg);
+}
+
+static inline int ad7414_write(struct i2c_client *client, u8 reg, u8 value)
+{
+	return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+static struct ad7414_data *ad7414_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct ad7414_data *data = i2c_get_clientdata(client);
+
+	mutex_lock(&data->lock);
+
+	if (time_after(jiffies, data->next_update) || !data->valid) {
+		int value, i;
+
+		dev_dbg(&client->dev, "starting ad7414 update\n");
+
+		value = ad7414_read(client, AD7414_REG_TEMP);
+		if (value < 0)
+			dev_dbg(&client->dev, "AD7414_REG_TEMP err %d\n",
+				value);
+		else
+			data->temp_input = value;
+
+		for (i = 0; i < ARRAY_SIZE(AD7414_REG_LIMIT); ++i) {
+			value = ad7414_read(client, AD7414_REG_LIMIT[i]);
+			if (value < 0)
+				dev_dbg(&client->dev, "AD7414 reg %d err %d\n",
+					AD7414_REG_LIMIT[i], value);
+			else
+				data->temps[i] = value;
+		}
+
+		data->next_update = jiffies + HZ + HZ / 2;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->lock);
+
+	return data;
+}
+
+static ssize_t show_temp_input(struct device *dev,
+			       struct device_attribute *attr, char *buf)
+{
+	struct ad7414_data *data = ad7414_update_device(dev);
+	return sprintf(buf, "%d\n", ad7414_temp_from_reg(data->temp_input));
+}
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0);
+
+static ssize_t show_max_min(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	int index = to_sensor_dev_attr(attr)->index;
+	struct ad7414_data *data = ad7414_update_device(dev);
+	return sprintf(buf, "%d\n", data->temps[index] * 1000);
+}
+
+static ssize_t set_max_min(struct device *dev,
+			   struct device_attribute *attr,
+			   const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct ad7414_data *data = i2c_get_clientdata(client);
+	int index = to_sensor_dev_attr(attr)->index;
+	u8 reg = AD7414_REG_LIMIT[index];
+	long temp = simple_strtol(buf, NULL, 10);
+
+	temp = SENSORS_LIMIT(temp, -40000, 85000);
+	temp = (temp + (temp < 0 ? -500 : 500)) / 1000;
+
+	mutex_lock(&data->lock);
+	data->temps[index] = temp;
+	ad7414_write(client, reg, temp);
+	mutex_unlock(&data->lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
+			  show_max_min, set_max_min, 0);
+static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO,
+			  show_max_min, set_max_min, 1);
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	struct ad7414_data *data = ad7414_update_device(dev);
+	int value = (data->temp_input >> bitnr) & 1;
+	return sprintf(buf, "%d\n", value);
+}
+
+static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 4);
+
+static struct attribute *ad7414_attributes[] = {
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group ad7414_group = {
+	.attrs = ad7414_attributes,
+};
+
+static int ad7414_probe(struct i2c_client *client,
+			const struct i2c_device_id *dev_id)
+{
+	struct ad7414_data *data;
+	int conf;
+	int err = 0;
+
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA |
+				     I2C_FUNC_SMBUS_READ_WORD_DATA))
+		goto exit;
+
+	data = kzalloc(sizeof(struct ad7414_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->lock);
+
+	dev_info(&client->dev, "chip found\n");
+
+	/* Make sure the chip is powered up. */
+	conf = i2c_smbus_read_byte_data(client, AD7414_REG_CONF);
+	if (conf < 0)
+		dev_warn(&client->dev,
+			 "ad7414_probe unable to read config register.\n");
+	else {
+		conf &= ~(1 << 7);
+		i2c_smbus_write_byte_data(client, AD7414_REG_CONF, conf);
+	}
+
+	/* Register sysfs hooks */
+	err = sysfs_create_group(&client->dev.kobj, &ad7414_group);
+	if (err)
+		goto exit_free;
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	return 0;
+
+exit_remove:
+	sysfs_remove_group(&client->dev.kobj, &ad7414_group);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+static int __devexit ad7414_remove(struct i2c_client *client)
+{
+	struct ad7414_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &ad7414_group);
+	kfree(data);
+	return 0;
+}
+
+static const struct i2c_device_id ad7414_id[] = {
+	{ "ad7414", 0 },
+	{}
+};
+
+static struct i2c_driver ad7414_driver = {
+	.driver = {
+		.name	= "ad7414",
+	},
+	.probe	= ad7414_probe,
+	.remove	= __devexit_p(ad7414_remove),
+	.id_table = ad7414_id,
+};
+
+static int __init ad7414_init(void)
+{
+	return i2c_add_driver(&ad7414_driver);
+}
+module_init(ad7414_init);
+
+static void __exit ad7414_exit(void)
+{
+	i2c_del_driver(&ad7414_driver);
+}
+module_exit(ad7414_exit);
+
+MODULE_AUTHOR("Stefan Roese <sr at denx.de>, "
+	      "Frank Edelhaeuser <frank.edelhaeuser at spansion.com>");
+
+MODULE_DESCRIPTION("AD7414 driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/ad7418.c b/drivers/hwmon/ad7418.c
new file mode 100644
index 0000000..f97b5b3
--- /dev/null
+++ b/drivers/hwmon/ad7418.c
@@ -0,0 +1,316 @@
+/*
+ * An hwmon driver for the Analog Devices AD7416/17/18
+ * Copyright (C) 2006-07 Tower Technologies
+ *
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
+ *
+ * Based on lm75.c
+ * Copyright (C) 1998-99 Frodo Looijaard <frodol@dds.nl>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License,
+ * as published by the Free Software Foundation - version 2.
+ */
+
+#include <linux/module.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/delay.h>
+
+#include "lm75.h"
+
+#define DRV_VERSION "0.4"
+
+enum chips { ad7416, ad7417, ad7418 };
+
+/* AD7418 registers */
+#define AD7418_REG_TEMP_IN	0x00
+#define AD7418_REG_CONF		0x01
+#define AD7418_REG_TEMP_HYST	0x02
+#define AD7418_REG_TEMP_OS	0x03
+#define AD7418_REG_ADC		0x04
+#define AD7418_REG_CONF2	0x05
+
+#define AD7418_REG_ADC_CH(x)	((x) << 5)
+#define AD7418_CH_TEMP		AD7418_REG_ADC_CH(0)
+
+static const u8 AD7418_REG_TEMP[] = { AD7418_REG_TEMP_IN,
+					AD7418_REG_TEMP_HYST,
+					AD7418_REG_TEMP_OS };
+
+struct ad7418_data {
+	struct device		*hwmon_dev;
+	struct attribute_group	attrs;
+	enum chips		type;
+	struct mutex		lock;
+	int			adc_max;	/* number of ADC channels */
+	char			valid;
+	unsigned long		last_updated;	/* In jiffies */
+	s16			temp[3];	/* Register values */
+	u16			in[4];
+};
+
+static int ad7418_probe(struct i2c_client *client,
+			const struct i2c_device_id *id);
+static int ad7418_remove(struct i2c_client *client);
+
+static const struct i2c_device_id ad7418_id[] = {
+	{ "ad7416", ad7416 },
+	{ "ad7417", ad7417 },
+	{ "ad7418", ad7418 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, ad7418_id);
+
+static struct i2c_driver ad7418_driver = {
+	.driver = {
+		.name	= "ad7418",
+	},
+	.probe		= ad7418_probe,
+	.remove		= ad7418_remove,
+	.id_table	= ad7418_id,
+};
+
+/* All registers are word-sized, except for the configuration registers.
+ * AD7418 uses a high-byte first convention. Do NOT use those functions to
+ * access the configuration registers CONF and CONF2, as they are byte-sized.
+ */
+static inline int ad7418_read(struct i2c_client *client, u8 reg)
+{
+	return swab16(i2c_smbus_read_word_data(client, reg));
+}
+
+static inline int ad7418_write(struct i2c_client *client, u8 reg, u16 value)
+{
+	return i2c_smbus_write_word_data(client, reg, swab16(value));
+}
+
+static void ad7418_init_client(struct i2c_client *client)
+{
+	struct ad7418_data *data = i2c_get_clientdata(client);
+
+	int reg = i2c_smbus_read_byte_data(client, AD7418_REG_CONF);
+	if (reg < 0) {
+		dev_err(&client->dev, "cannot read configuration register\n");
+	} else {
+		dev_info(&client->dev, "configuring for mode 1\n");
+		i2c_smbus_write_byte_data(client, AD7418_REG_CONF, reg & 0xfe);
+
+		if (data->type == ad7417 || data->type == ad7418)
+			i2c_smbus_write_byte_data(client,
+						AD7418_REG_CONF2, 0x00);
+	}
+}
+
+static struct ad7418_data *ad7418_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct ad7418_data *data = i2c_get_clientdata(client);
+
+	mutex_lock(&data->lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+		|| !data->valid) {
+		u8 cfg;
+		int i, ch;
+
+		/* read config register and clear channel bits */
+		cfg = i2c_smbus_read_byte_data(client, AD7418_REG_CONF);
+		cfg &= 0x1F;
+
+		i2c_smbus_write_byte_data(client, AD7418_REG_CONF,
+						cfg | AD7418_CH_TEMP);
+		udelay(30);
+
+		for (i = 0; i < 3; i++) {
+			data->temp[i] = ad7418_read(client, AD7418_REG_TEMP[i]);
+		}
+
+		for (i = 0, ch = 4; i < data->adc_max; i++, ch--) {
+			i2c_smbus_write_byte_data(client,
+					AD7418_REG_CONF,
+					cfg | AD7418_REG_ADC_CH(ch));
+
+			udelay(15);
+			data->in[data->adc_max - 1 - i] =
+				ad7418_read(client, AD7418_REG_ADC);
+		}
+
+		/* restore old configuration value */
+		ad7418_write(client, AD7418_REG_CONF, cfg);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->lock);
+
+	return data;
+}
+
+static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
+			char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct ad7418_data *data = ad7418_update_device(dev);
+	return sprintf(buf, "%d\n",
+		LM75_TEMP_FROM_REG(data->temp[attr->index]));
+}
+
+static ssize_t show_adc(struct device *dev, struct device_attribute *devattr,
+			char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct ad7418_data *data = ad7418_update_device(dev);
+
+	return sprintf(buf, "%d\n",
+		((data->in[attr->index] >> 6) * 2500 + 512) / 1024);
+}
+
+static ssize_t set_temp(struct device *dev, struct device_attribute *devattr,
+			const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct ad7418_data *data = i2c_get_clientdata(client);
+	long temp = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->lock);
+	data->temp[attr->index] = LM75_TEMP_TO_REG(temp);
+	ad7418_write(client, AD7418_REG_TEMP[attr->index], data->temp[attr->index]);
+	mutex_unlock(&data->lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO,
+				show_temp, set_temp, 1);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
+				show_temp, set_temp, 2);
+
+static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_adc, NULL, 0);
+static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_adc, NULL, 1);
+static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_adc, NULL, 2);
+static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_adc, NULL, 3);
+
+static struct attribute *ad7416_attributes[] = {
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	NULL
+};
+
+static struct attribute *ad7417_attributes[] = {
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in4_input.dev_attr.attr,
+	NULL
+};
+
+static struct attribute *ad7418_attributes[] = {
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	NULL
+};
+
+static int ad7418_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct i2c_adapter *adapter = client->adapter;
+	struct ad7418_data *data;
+	int err;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
+					I2C_FUNC_SMBUS_WORD_DATA)) {
+		err = -EOPNOTSUPP;
+		goto exit;
+	}
+
+	if (!(data = kzalloc(sizeof(struct ad7418_data), GFP_KERNEL))) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+
+	mutex_init(&data->lock);
+	data->type = id->driver_data;
+
+	switch (data->type) {
+	case ad7416:
+		data->adc_max = 0;
+		data->attrs.attrs = ad7416_attributes;
+		break;
+
+	case ad7417:
+		data->adc_max = 4;
+		data->attrs.attrs = ad7417_attributes;
+		break;
+
+	case ad7418:
+		data->adc_max = 1;
+		data->attrs.attrs = ad7418_attributes;
+		break;
+	}
+
+	dev_info(&client->dev, "%s chip found\n", client->name);
+
+	/* Initialize the AD7418 chip */
+	ad7418_init_client(client);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&client->dev.kobj, &data->attrs)))
+		goto exit_free;
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	return 0;
+
+exit_remove:
+	sysfs_remove_group(&client->dev.kobj, &data->attrs);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+static int ad7418_remove(struct i2c_client *client)
+{
+	struct ad7418_data *data = i2c_get_clientdata(client);
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &data->attrs);
+	kfree(data);
+	return 0;
+}
+
+static int __init ad7418_init(void)
+{
+	return i2c_add_driver(&ad7418_driver);
+}
+
+static void __exit ad7418_exit(void)
+{
+	i2c_del_driver(&ad7418_driver);
+}
+
+MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
+MODULE_DESCRIPTION("AD7416/17/18 driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+module_init(ad7418_init);
+module_exit(ad7418_exit);
diff --git a/drivers/hwmon/adcxx.c b/drivers/hwmon/adcxx.c
new file mode 100644
index 0000000..242294d
--- /dev/null
+++ b/drivers/hwmon/adcxx.c
@@ -0,0 +1,329 @@
+/*
+ * adcxx.c
+ *
+ * The adcxx4s is an AD converter family from National Semiconductor (NS).
+ *
+ * Copyright (c) 2008 Marc Pignat <marc.pignat@hevs.ch>
+ *
+ * The adcxx4s communicates with a host processor via an SPI/Microwire Bus
+ * interface. This driver supports the whole family of devices with name
+ * ADC<bb><c>S<sss>, where
+ * * bb is the resolution in number of bits (8, 10, 12)
+ * * c is the number of channels (1, 2, 4, 8)
+ * * sss is the maximum conversion speed (021 for 200 kSPS, 051 for 500 kSPS
+ *   and 101 for 1 MSPS)
+ *
+ * Complete datasheets are available at National's website here:
+ * http://www.national.com/ds/DC/ADC<bb><c>S<sss>.pdf
+ *
+ * Handling of 8, 10 and 12 bits converters are the same, the
+ * unavailable bits are 0 :)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/sysfs.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/mutex.h>
+#include <linux/spi/spi.h>
+
+#define DRVNAME		"adcxx"
+
+struct adcxx {
+	struct device *hwmon_dev;
+	struct mutex lock;
+	u32 channels;
+	u32 reference; /* in millivolts */
+};
+
+/* sysfs hook function */
+static ssize_t adcxx_read(struct device *dev,
+		struct device_attribute *devattr, char *buf)
+{
+	struct spi_device *spi = to_spi_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adcxx *adc = dev_get_drvdata(&spi->dev);
+	u8 tx_buf[2] = { attr->index << 3 }; /* other bits are don't care */
+	u8 rx_buf[2];
+	int status;
+	int value;
+
+	if (mutex_lock_interruptible(&adc->lock))
+		return -ERESTARTSYS;
+
+	status = spi_write_then_read(spi, tx_buf, sizeof(tx_buf),
+					rx_buf, sizeof(rx_buf));
+	if (status < 0) {
+		dev_warn(dev, "spi_write_then_read failed with status %d\n",
+				status);
+		goto out;
+	}
+
+	value = (rx_buf[0] << 8) + rx_buf[1];
+	dev_dbg(dev, "raw value = 0x%x\n", value);
+
+	value = value * adc->reference >> 12;
+	status = sprintf(buf, "%d\n", value);
+out:
+	mutex_unlock(&adc->lock);
+	return status;
+}
+
+static ssize_t adcxx_show_min(struct device *dev,
+		struct device_attribute *devattr, char *buf)
+{
+	/* The minimum reference is 0 for this chip family */
+	return sprintf(buf, "0\n");
+}
+
+static ssize_t adcxx_show_max(struct device *dev,
+		struct device_attribute *devattr, char *buf)
+{
+	struct spi_device *spi = to_spi_device(dev);
+	struct adcxx *adc = dev_get_drvdata(&spi->dev);
+	u32 reference;
+
+	if (mutex_lock_interruptible(&adc->lock))
+		return -ERESTARTSYS;
+
+	reference = adc->reference;
+
+	mutex_unlock(&adc->lock);
+
+	return sprintf(buf, "%d\n", reference);
+}
+
+static ssize_t adcxx_set_max(struct device *dev,
+	struct device_attribute *devattr, const char *buf, size_t count)
+{
+	struct spi_device *spi = to_spi_device(dev);
+	struct adcxx *adc = dev_get_drvdata(&spi->dev);
+	unsigned long value;
+
+	if (strict_strtoul(buf, 10, &value))
+		return -EINVAL;
+
+	if (mutex_lock_interruptible(&adc->lock))
+		return -ERESTARTSYS;
+
+	adc->reference = value;
+
+	mutex_unlock(&adc->lock);
+
+	return count;
+}
+
+static ssize_t adcxx_show_name(struct device *dev, struct device_attribute
+			      *devattr, char *buf)
+{
+	struct spi_device *spi = to_spi_device(dev);
+	struct adcxx *adc = dev_get_drvdata(&spi->dev);
+
+	return sprintf(buf, "adcxx%ds\n", adc->channels);
+}
+
+static struct sensor_device_attribute ad_input[] = {
+	SENSOR_ATTR(name, S_IRUGO, adcxx_show_name, NULL, 0),
+	SENSOR_ATTR(in_min, S_IRUGO, adcxx_show_min, NULL, 0),
+	SENSOR_ATTR(in_max, S_IWUSR | S_IRUGO, adcxx_show_max,
+					adcxx_set_max, 0),
+	SENSOR_ATTR(in0_input, S_IRUGO, adcxx_read, NULL, 0),
+	SENSOR_ATTR(in1_input, S_IRUGO, adcxx_read, NULL, 1),
+	SENSOR_ATTR(in2_input, S_IRUGO, adcxx_read, NULL, 2),
+	SENSOR_ATTR(in3_input, S_IRUGO, adcxx_read, NULL, 3),
+	SENSOR_ATTR(in4_input, S_IRUGO, adcxx_read, NULL, 4),
+	SENSOR_ATTR(in5_input, S_IRUGO, adcxx_read, NULL, 5),
+	SENSOR_ATTR(in6_input, S_IRUGO, adcxx_read, NULL, 6),
+	SENSOR_ATTR(in7_input, S_IRUGO, adcxx_read, NULL, 7),
+};
+
+/*----------------------------------------------------------------------*/
+
+static int __devinit adcxx_probe(struct spi_device *spi, int channels)
+{
+	struct adcxx *adc;
+	int status;
+	int i;
+
+	adc = kzalloc(sizeof *adc, GFP_KERNEL);
+	if (!adc)
+		return -ENOMEM;
+
+	/* set a default value for the reference */
+	adc->reference = 3300;
+	adc->channels = channels;
+	mutex_init(&adc->lock);
+
+	mutex_lock(&adc->lock);
+
+	dev_set_drvdata(&spi->dev, adc);
+
+	for (i = 0; i < 3 + adc->channels; i++) {
+		status = device_create_file(&spi->dev, &ad_input[i].dev_attr);
+		if (status) {
+			dev_err(&spi->dev, "device_create_file failed.\n");
+			goto out_err;
+		}
+	}
+
+	adc->hwmon_dev = hwmon_device_register(&spi->dev);
+	if (IS_ERR(adc->hwmon_dev)) {
+		dev_err(&spi->dev, "hwmon_device_register failed.\n");
+		status = PTR_ERR(adc->hwmon_dev);
+		goto out_err;
+	}
+
+	mutex_unlock(&adc->lock);
+	return 0;
+
+out_err:
+	for (i--; i >= 0; i--)
+		device_remove_file(&spi->dev, &ad_input[i].dev_attr);
+
+	dev_set_drvdata(&spi->dev, NULL);
+	mutex_unlock(&adc->lock);
+	kfree(adc);
+	return status;
+}
+
+static int __devinit adcxx1s_probe(struct spi_device *spi)
+{
+	return adcxx_probe(spi, 1);
+}
+
+static int __devinit adcxx2s_probe(struct spi_device *spi)
+{
+	return adcxx_probe(spi, 2);
+}
+
+static int __devinit adcxx4s_probe(struct spi_device *spi)
+{
+	return adcxx_probe(spi, 4);
+}
+
+static int __devinit adcxx8s_probe(struct spi_device *spi)
+{
+	return adcxx_probe(spi, 8);
+}
+
+static int __devexit adcxx_remove(struct spi_device *spi)
+{
+	struct adcxx *adc = dev_get_drvdata(&spi->dev);
+	int i;
+
+	mutex_lock(&adc->lock);
+	hwmon_device_unregister(adc->hwmon_dev);
+	for (i = 0; i < 3 + adc->channels; i++)
+		device_remove_file(&spi->dev, &ad_input[i].dev_attr);
+
+	dev_set_drvdata(&spi->dev, NULL);
+	mutex_unlock(&adc->lock);
+	kfree(adc);
+
+	return 0;
+}
+
+static struct spi_driver adcxx1s_driver = {
+	.driver = {
+		.name	= "adcxx1s",
+		.owner	= THIS_MODULE,
+	},
+	.probe	= adcxx1s_probe,
+	.remove	= __devexit_p(adcxx_remove),
+};
+
+static struct spi_driver adcxx2s_driver = {
+	.driver = {
+		.name	= "adcxx2s",
+		.owner	= THIS_MODULE,
+	},
+	.probe	= adcxx2s_probe,
+	.remove	= __devexit_p(adcxx_remove),
+};
+
+static struct spi_driver adcxx4s_driver = {
+	.driver = {
+		.name	= "adcxx4s",
+		.owner	= THIS_MODULE,
+	},
+	.probe	= adcxx4s_probe,
+	.remove	= __devexit_p(adcxx_remove),
+};
+
+static struct spi_driver adcxx8s_driver = {
+	.driver = {
+		.name	= "adcxx8s",
+		.owner	= THIS_MODULE,
+	},
+	.probe	= adcxx8s_probe,
+	.remove	= __devexit_p(adcxx_remove),
+};
+
+static int __init init_adcxx(void)
+{
+	int status;
+	status = spi_register_driver(&adcxx1s_driver);
+	if (status)
+		goto reg_1_failed;
+
+	status = spi_register_driver(&adcxx2s_driver);
+	if (status)
+		goto reg_2_failed;
+
+	status = spi_register_driver(&adcxx4s_driver);
+	if (status)
+		goto reg_4_failed;
+
+	status = spi_register_driver(&adcxx8s_driver);
+	if (status)
+		goto reg_8_failed;
+
+	return status;
+
+reg_8_failed:
+	spi_unregister_driver(&adcxx4s_driver);
+reg_4_failed:
+	spi_unregister_driver(&adcxx2s_driver);
+reg_2_failed:
+	spi_unregister_driver(&adcxx1s_driver);
+reg_1_failed:
+	return status;
+}
+
+static void __exit exit_adcxx(void)
+{
+	spi_unregister_driver(&adcxx1s_driver);
+	spi_unregister_driver(&adcxx2s_driver);
+	spi_unregister_driver(&adcxx4s_driver);
+	spi_unregister_driver(&adcxx8s_driver);
+}
+
+module_init(init_adcxx);
+module_exit(exit_adcxx);
+
+MODULE_AUTHOR("Marc Pignat");
+MODULE_DESCRIPTION("National Semiconductor adcxx8sxxx Linux driver");
+MODULE_LICENSE("GPL");
+
+MODULE_ALIAS("adcxx1s");
+MODULE_ALIAS("adcxx2s");
+MODULE_ALIAS("adcxx4s");
+MODULE_ALIAS("adcxx8s");
diff --git a/drivers/hwmon/adm1021.c b/drivers/hwmon/adm1021.c
new file mode 100644
index 0000000..b11e06f
--- /dev/null
+++ b/drivers/hwmon/adm1021.c
@@ -0,0 +1,469 @@
+/*
+    adm1021.c - Part of lm_sensors, Linux kernel modules for hardware
+		monitoring
+    Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl> and
+    Philip Edelbrock <phil@netroedge.com>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = {
+	0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e, I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_8(adm1021, adm1023, max1617, max1617a, thmc10, lm84, gl523sm,
+			mc1066);
+
+/* adm1021 constants specified below */
+
+/* The adm1021 registers */
+/* Read-only */
+/* For nr in 0-1 */
+#define ADM1021_REG_TEMP(nr)		(nr)
+#define ADM1021_REG_STATUS		0x02
+/* 0x41 = AD, 0x49 = TI, 0x4D = Maxim, 0x23 = Genesys , 0x54 = Onsemi */
+#define ADM1021_REG_MAN_ID		0xFE
+/* ADM1021 = 0x0X, ADM1023 = 0x3X */
+#define ADM1021_REG_DEV_ID		0xFF
+/* These use different addresses for reading/writing */
+#define ADM1021_REG_CONFIG_R		0x03
+#define ADM1021_REG_CONFIG_W		0x09
+#define ADM1021_REG_CONV_RATE_R		0x04
+#define ADM1021_REG_CONV_RATE_W		0x0A
+/* These are for the ADM1023's additional precision on the remote temp sensor */
+#define ADM1023_REG_REM_TEMP_PREC	0x10
+#define ADM1023_REG_REM_OFFSET		0x11
+#define ADM1023_REG_REM_OFFSET_PREC	0x12
+#define ADM1023_REG_REM_TOS_PREC	0x13
+#define ADM1023_REG_REM_THYST_PREC	0x14
+/* limits */
+/* For nr in 0-1 */
+#define ADM1021_REG_TOS_R(nr)		(0x05 + 2 * (nr))
+#define ADM1021_REG_TOS_W(nr)		(0x0B + 2 * (nr))
+#define ADM1021_REG_THYST_R(nr)		(0x06 + 2 * (nr))
+#define ADM1021_REG_THYST_W(nr)		(0x0C + 2 * (nr))
+/* write-only */
+#define ADM1021_REG_ONESHOT		0x0F
+
+/* Initial values */
+
+/* Note: Even though I left the low and high limits named os and hyst,
+they don't quite work like a thermostat the way the LM75 does.  I.e.,
+a lower temp than THYST actually triggers an alarm instead of
+clearing it.  Weird, ey?   --Phil  */
+
+/* Each client has this additional data */
+struct adm1021_data {
+	struct device *hwmon_dev;
+	enum chips type;
+
+	struct mutex update_lock;
+	char valid;		/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+
+	s8 temp_max[2];		/* Register values */
+	s8 temp_min[2];
+	s8 temp[2];
+	u8 alarms;
+	/* Special values for ADM1023 only */
+	u8 remote_temp_prec;
+	u8 remote_temp_os_prec;
+	u8 remote_temp_hyst_prec;
+	u8 remote_temp_offset;
+	u8 remote_temp_offset_prec;
+};
+
+static int adm1021_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int adm1021_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
+static void adm1021_init_client(struct i2c_client *client);
+static int adm1021_remove(struct i2c_client *client);
+static struct adm1021_data *adm1021_update_device(struct device *dev);
+
+/* (amalysh) read only mode, otherwise any limit's writing confuse BIOS */
+static int read_only;
+
+
+static const struct i2c_device_id adm1021_id[] = {
+	{ "adm1021", adm1021 },
+	{ "adm1023", adm1023 },
+	{ "max1617", max1617 },
+	{ "max1617a", max1617a },
+	{ "thmc10", thmc10 },
+	{ "lm84", lm84 },
+	{ "gl523sm", gl523sm },
+	{ "mc1066", mc1066 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adm1021_id);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver adm1021_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "adm1021",
+	},
+	.probe		= adm1021_probe,
+	.remove		= adm1021_remove,
+	.id_table	= adm1021_id,
+	.detect		= adm1021_detect,
+	.address_data	= &addr_data,
+};
+
+static ssize_t show_temp(struct device *dev,
+			 struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct adm1021_data *data = adm1021_update_device(dev);
+
+	return sprintf(buf, "%d\n", 1000 * data->temp[index]);
+}
+
+static ssize_t show_temp_max(struct device *dev,
+			     struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct adm1021_data *data = adm1021_update_device(dev);
+
+	return sprintf(buf, "%d\n", 1000 * data->temp_max[index]);
+}
+
+static ssize_t show_temp_min(struct device *dev,
+			     struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct adm1021_data *data = adm1021_update_device(dev);
+
+	return sprintf(buf, "%d\n", 1000 * data->temp_min[index]);
+}
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	int index = to_sensor_dev_attr(attr)->index;
+	struct adm1021_data *data = adm1021_update_device(dev);
+	return sprintf(buf, "%u\n", (data->alarms >> index) & 1);
+}
+
+static ssize_t show_alarms(struct device *dev,
+			   struct device_attribute *attr,
+			   char *buf)
+{
+	struct adm1021_data *data = adm1021_update_device(dev);
+	return sprintf(buf, "%u\n", data->alarms);
+}
+
+static ssize_t set_temp_max(struct device *dev,
+			    struct device_attribute *devattr,
+			    const char *buf, size_t count)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1021_data *data = i2c_get_clientdata(client);
+	long temp = simple_strtol(buf, NULL, 10) / 1000;
+
+	mutex_lock(&data->update_lock);
+	data->temp_max[index] = SENSORS_LIMIT(temp, -128, 127);
+	if (!read_only)
+		i2c_smbus_write_byte_data(client, ADM1021_REG_TOS_W(index),
+					  data->temp_max[index]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t set_temp_min(struct device *dev,
+			    struct device_attribute *devattr,
+			    const char *buf, size_t count)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1021_data *data = i2c_get_clientdata(client);
+	long temp = simple_strtol(buf, NULL, 10) / 1000;
+
+	mutex_lock(&data->update_lock);
+	data->temp_min[index] = SENSORS_LIMIT(temp, -128, 127);
+	if (!read_only)
+		i2c_smbus_write_byte_data(client, ADM1021_REG_THYST_W(index),
+					  data->temp_min[index]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max,
+			  set_temp_max, 0);
+static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_min,
+			  set_temp_min, 0);
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_max,
+			  set_temp_max, 1);
+static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_min,
+			  set_temp_min, 1);
+static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 2);
+
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+static struct attribute *adm1021_attributes[] = {
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_min.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_fault.dev_attr.attr,
+	&dev_attr_alarms.attr,
+	NULL
+};
+
+static const struct attribute_group adm1021_group = {
+	.attrs = adm1021_attributes,
+};
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int adm1021_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+	int i;
+	const char *type_name = "";
+	int conv_rate, status, config;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
+		pr_debug("adm1021: detect failed, "
+			 "smbus byte data not supported!\n");
+		return -ENODEV;
+	}
+
+	status = i2c_smbus_read_byte_data(client, ADM1021_REG_STATUS);
+	conv_rate = i2c_smbus_read_byte_data(client,
+					     ADM1021_REG_CONV_RATE_R);
+	config = i2c_smbus_read_byte_data(client, ADM1021_REG_CONFIG_R);
+
+	/* Now, we do the remaining detection. */
+	if (kind < 0) {
+		if ((status & 0x03) != 0x00 || (config & 0x3F) != 0x00
+		    || (conv_rate & 0xF8) != 0x00) {
+			pr_debug("adm1021: detect failed, "
+				 "chip not detected!\n");
+			return -ENODEV;
+		}
+	}
+
+	/* Determine the chip type. */
+	if (kind <= 0) {
+		i = i2c_smbus_read_byte_data(client, ADM1021_REG_MAN_ID);
+		if (i == 0x41)
+			if ((i2c_smbus_read_byte_data(client,
+					ADM1021_REG_DEV_ID) & 0xF0) == 0x30)
+				kind = adm1023;
+			else
+				kind = adm1021;
+		else if (i == 0x49)
+			kind = thmc10;
+		else if (i == 0x23)
+			kind = gl523sm;
+		else if ((i == 0x4d) &&
+			 (i2c_smbus_read_byte_data(client,
+						   ADM1021_REG_DEV_ID) == 0x01))
+			kind = max1617a;
+		else if (i == 0x54)
+			kind = mc1066;
+		/* LM84 Mfr ID in a different place, and it has more unused bits */
+		else if (conv_rate == 0x00
+			 && (kind == 0 /* skip extra detection */
+			     || ((config & 0x7F) == 0x00
+				 && (status & 0xAB) == 0x00)))
+			kind = lm84;
+		else
+			kind = max1617;
+	}
+
+	if (kind == max1617) {
+		type_name = "max1617";
+	} else if (kind == max1617a) {
+		type_name = "max1617a";
+	} else if (kind == adm1021) {
+		type_name = "adm1021";
+	} else if (kind == adm1023) {
+		type_name = "adm1023";
+	} else if (kind == thmc10) {
+		type_name = "thmc10";
+	} else if (kind == lm84) {
+		type_name = "lm84";
+	} else if (kind == gl523sm) {
+		type_name = "gl523sm";
+	} else if (kind == mc1066) {
+		type_name = "mc1066";
+	}
+	pr_debug("adm1021: Detected chip %s at adapter %d, address 0x%02x.\n",
+		 type_name, i2c_adapter_id(adapter), client->addr);
+	strlcpy(info->type, type_name, I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int adm1021_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct adm1021_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct adm1021_data), GFP_KERNEL);
+	if (!data) {
+		pr_debug("adm1021: detect failed, kzalloc failed!\n");
+		err = -ENOMEM;
+		goto error0;
+	}
+
+	i2c_set_clientdata(client, data);
+	data->type = id->driver_data;
+	mutex_init(&data->update_lock);
+
+	/* Initialize the ADM1021 chip */
+	if (data->type != lm84 && !read_only)
+		adm1021_init_client(client);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&client->dev.kobj, &adm1021_group)))
+		goto error1;
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto error3;
+	}
+
+	return 0;
+
+error3:
+	sysfs_remove_group(&client->dev.kobj, &adm1021_group);
+error1:
+	kfree(data);
+error0:
+	return err;
+}
+
+static void adm1021_init_client(struct i2c_client *client)
+{
+	/* Enable ADC and disable suspend mode */
+	i2c_smbus_write_byte_data(client, ADM1021_REG_CONFIG_W,
+		i2c_smbus_read_byte_data(client, ADM1021_REG_CONFIG_R) & 0xBF);
+	/* Set Conversion rate to 1/sec (this can be tinkered with) */
+	i2c_smbus_write_byte_data(client, ADM1021_REG_CONV_RATE_W, 0x04);
+}
+
+static int adm1021_remove(struct i2c_client *client)
+{
+	struct adm1021_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &adm1021_group);
+
+	kfree(data);
+	return 0;
+}
+
+static struct adm1021_data *adm1021_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1021_data *data = i2c_get_clientdata(client);
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	    || !data->valid) {
+		int i;
+
+		dev_dbg(&client->dev, "Starting adm1021 update\n");
+
+		for (i = 0; i < 2; i++) {
+			data->temp[i] = i2c_smbus_read_byte_data(client,
+						ADM1021_REG_TEMP(i));
+			data->temp_max[i] = i2c_smbus_read_byte_data(client,
+						ADM1021_REG_TOS_R(i));
+			data->temp_min[i] = i2c_smbus_read_byte_data(client,
+						ADM1021_REG_THYST_R(i));
+		}
+		data->alarms = i2c_smbus_read_byte_data(client,
+						ADM1021_REG_STATUS) & 0x7c;
+		if (data->type == adm1023) {
+			data->remote_temp_prec =
+				i2c_smbus_read_byte_data(client,
+						ADM1023_REG_REM_TEMP_PREC);
+			data->remote_temp_os_prec =
+				i2c_smbus_read_byte_data(client,
+						ADM1023_REG_REM_TOS_PREC);
+			data->remote_temp_hyst_prec =
+				i2c_smbus_read_byte_data(client,
+						ADM1023_REG_REM_THYST_PREC);
+			data->remote_temp_offset =
+				i2c_smbus_read_byte_data(client,
+						ADM1023_REG_REM_OFFSET);
+			data->remote_temp_offset_prec =
+				i2c_smbus_read_byte_data(client,
+						ADM1023_REG_REM_OFFSET_PREC);
+		}
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init sensors_adm1021_init(void)
+{
+	return i2c_add_driver(&adm1021_driver);
+}
+
+static void __exit sensors_adm1021_exit(void)
+{
+	i2c_del_driver(&adm1021_driver);
+}
+
+MODULE_AUTHOR ("Frodo Looijaard <frodol@dds.nl> and "
+		"Philip Edelbrock <phil@netroedge.com>");
+MODULE_DESCRIPTION("adm1021 driver");
+MODULE_LICENSE("GPL");
+
+module_param(read_only, bool, 0);
+MODULE_PARM_DESC(read_only, "Don't set any values, read only mode");
+
+module_init(sensors_adm1021_init)
+module_exit(sensors_adm1021_exit)
diff --git a/drivers/hwmon/adm1025.c b/drivers/hwmon/adm1025.c
new file mode 100644
index 0000000..4db04d6
--- /dev/null
+++ b/drivers/hwmon/adm1025.c
@@ -0,0 +1,644 @@
+/*
+ * adm1025.c
+ *
+ * Copyright (C) 2000       Chen-Yuan Wu <gwu@esoft.com>
+ * Copyright (C) 2003-2008  Jean Delvare <khali@linux-fr.org>
+ *
+ * The ADM1025 is a sensor chip made by Analog Devices. It reports up to 6
+ * voltages (including its own power source) and up to two temperatures
+ * (its own plus up to one external one). Voltages are scaled internally
+ * (which is not the common way) with ratios such that the nominal value
+ * of each voltage correspond to a register value of 192 (which means a
+ * resolution of about 0.5% of the nominal value). Temperature values are
+ * reported with a 1 deg resolution and a 3 deg accuracy. Complete
+ * datasheet can be obtained from Analog's website at:
+ *   http://www.analog.com/Analog_Root/productPage/productHome/0,2121,ADM1025,00.html
+ *
+ * This driver also supports the ADM1025A, which differs from the ADM1025
+ * only in that it has "open-drain VID inputs while the ADM1025 has
+ * on-chip 100k pull-ups on the VID inputs". It doesn't make any
+ * difference for us.
+ *
+ * This driver also supports the NE1619, a sensor chip made by Philips.
+ * That chip is similar to the ADM1025A, with a few differences. The only
+ * difference that matters to us is that the NE1619 has only two possible
+ * addresses while the ADM1025A has a third one. Complete datasheet can be
+ * obtained from Philips's website at:
+ *   http://www.semiconductors.philips.com/pip/NE1619DS.html
+ *
+ * Since the ADM1025 was the first chipset supported by this driver, most
+ * comments will refer to this chipset, but are actually general and
+ * concern all supported chipsets, unless mentioned otherwise.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon-vid.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+/*
+ * Addresses to scan
+ * ADM1025 and ADM1025A have three possible addresses: 0x2c, 0x2d and 0x2e.
+ * NE1619 has two possible addresses: 0x2c and 0x2d.
+ */
+
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
+
+/*
+ * Insmod parameters
+ */
+
+I2C_CLIENT_INSMOD_2(adm1025, ne1619);
+
+/*
+ * The ADM1025 registers
+ */
+
+#define ADM1025_REG_MAN_ID		0x3E
+#define ADM1025_REG_CHIP_ID		0x3F
+#define ADM1025_REG_CONFIG		0x40
+#define ADM1025_REG_STATUS1		0x41
+#define ADM1025_REG_STATUS2		0x42
+#define ADM1025_REG_IN(nr)		(0x20 + (nr))
+#define ADM1025_REG_IN_MAX(nr)		(0x2B + (nr) * 2)
+#define ADM1025_REG_IN_MIN(nr)		(0x2C + (nr) * 2)
+#define ADM1025_REG_TEMP(nr)		(0x26 + (nr))
+#define ADM1025_REG_TEMP_HIGH(nr)	(0x37 + (nr) * 2)
+#define ADM1025_REG_TEMP_LOW(nr)	(0x38 + (nr) * 2)
+#define ADM1025_REG_VID			0x47
+#define ADM1025_REG_VID4		0x49
+
+/*
+ * Conversions and various macros
+ * The ADM1025 uses signed 8-bit values for temperatures.
+ */
+
+static const int in_scale[6] = { 2500, 2250, 3300, 5000, 12000, 3300 };
+
+#define IN_FROM_REG(reg,scale)	(((reg) * (scale) + 96) / 192)
+#define IN_TO_REG(val,scale)	((val) <= 0 ? 0 : \
+				 (val) * 192 >= (scale) * 255 ? 255 : \
+				 ((val) * 192 + (scale)/2) / (scale))
+
+#define TEMP_FROM_REG(reg)	((reg) * 1000)
+#define TEMP_TO_REG(val)	((val) <= -127500 ? -128 : \
+				 (val) >= 126500 ? 127 : \
+				 (((val) < 0 ? (val)-500 : (val)+500) / 1000))
+
+/*
+ * Functions declaration
+ */
+
+static int adm1025_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int adm1025_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
+static void adm1025_init_client(struct i2c_client *client);
+static int adm1025_remove(struct i2c_client *client);
+static struct adm1025_data *adm1025_update_device(struct device *dev);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static const struct i2c_device_id adm1025_id[] = {
+	{ "adm1025", adm1025 },
+	{ "ne1619", ne1619 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adm1025_id);
+
+static struct i2c_driver adm1025_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "adm1025",
+	},
+	.probe		= adm1025_probe,
+	.remove		= adm1025_remove,
+	.id_table	= adm1025_id,
+	.detect		= adm1025_detect,
+	.address_data	= &addr_data,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct adm1025_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	char valid; /* zero until following fields are valid */
+	unsigned long last_updated; /* in jiffies */
+
+	u8 in[6];		/* register value */
+	u8 in_max[6];		/* register value */
+	u8 in_min[6];		/* register value */
+	s8 temp[2];		/* register value */
+	s8 temp_min[2];		/* register value */
+	s8 temp_max[2];		/* register value */
+	u16 alarms;		/* register values, combined */
+	u8 vid;			/* register values, combined */
+	u8 vrm;
+};
+
+/*
+ * Sysfs stuff
+ */
+
+static ssize_t
+show_in(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	int index = to_sensor_dev_attr(attr)->index;
+	struct adm1025_data *data = adm1025_update_device(dev);
+	return sprintf(buf, "%u\n", IN_FROM_REG(data->in[index],
+		       in_scale[index]));
+}
+
+static ssize_t
+show_in_min(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	int index = to_sensor_dev_attr(attr)->index;
+	struct adm1025_data *data = adm1025_update_device(dev);
+	return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[index],
+		       in_scale[index]));
+}
+
+static ssize_t
+show_in_max(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	int index = to_sensor_dev_attr(attr)->index;
+	struct adm1025_data *data = adm1025_update_device(dev);
+	return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[index],
+		       in_scale[index]));
+}
+
+static ssize_t
+show_temp(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	int index = to_sensor_dev_attr(attr)->index;
+	struct adm1025_data *data = adm1025_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[index]));
+}
+
+static ssize_t
+show_temp_min(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	int index = to_sensor_dev_attr(attr)->index;
+	struct adm1025_data *data = adm1025_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[index]));
+}
+
+static ssize_t
+show_temp_max(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	int index = to_sensor_dev_attr(attr)->index;
+	struct adm1025_data *data = adm1025_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[index]));
+}
+
+static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
+			  const char *buf, size_t count)
+{
+	int index = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1025_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_min[index] = IN_TO_REG(val, in_scale[index]);
+	i2c_smbus_write_byte_data(client, ADM1025_REG_IN_MIN(index),
+				  data->in_min[index]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
+			  const char *buf, size_t count)
+{
+	int index = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1025_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_max[index] = IN_TO_REG(val, in_scale[index]);
+	i2c_smbus_write_byte_data(client, ADM1025_REG_IN_MAX(index),
+				  data->in_max[index]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define set_in(offset) \
+static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
+	show_in, NULL, offset); \
+static SENSOR_DEVICE_ATTR(in##offset##_min, S_IWUSR | S_IRUGO, \
+	show_in_min, set_in_min, offset); \
+static SENSOR_DEVICE_ATTR(in##offset##_max, S_IWUSR | S_IRUGO, \
+	show_in_max, set_in_max, offset)
+set_in(0);
+set_in(1);
+set_in(2);
+set_in(3);
+set_in(4);
+set_in(5);
+
+static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
+			    const char *buf, size_t count)
+{
+	int index = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1025_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_min[index] = TEMP_TO_REG(val);
+	i2c_smbus_write_byte_data(client, ADM1025_REG_TEMP_LOW(index),
+				  data->temp_min[index]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
+	const char *buf, size_t count)
+{
+	int index = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1025_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_max[index] = TEMP_TO_REG(val);
+	i2c_smbus_write_byte_data(client, ADM1025_REG_TEMP_HIGH(index),
+				  data->temp_max[index]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define set_temp(offset) \
+static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
+	show_temp, NULL, offset - 1); \
+static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
+	show_temp_min, set_temp_min, offset - 1); \
+static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
+	show_temp_max, set_temp_max, offset - 1)
+set_temp(1);
+set_temp(2);
+
+static ssize_t
+show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct adm1025_data *data = adm1025_update_device(dev);
+	return sprintf(buf, "%u\n", data->alarms);
+}
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+static ssize_t
+show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	struct adm1025_data *data = adm1025_update_device(dev);
+	return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
+}
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 9);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14);
+
+static ssize_t
+show_vid(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct adm1025_data *data = adm1025_update_device(dev);
+	return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
+}
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
+
+static ssize_t
+show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct adm1025_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%u\n", data->vrm);
+}
+static ssize_t set_vrm(struct device *dev, struct device_attribute *attr,
+		       const char *buf, size_t count)
+{
+	struct adm1025_data *data = dev_get_drvdata(dev);
+	data->vrm = simple_strtoul(buf, NULL, 10);
+	return count;
+}
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
+
+/*
+ * Real code
+ */
+
+static struct attribute *adm1025_attributes[] = {
+	&sensor_dev_attr_in0_input.dev_attr.attr,
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in5_input.dev_attr.attr,
+	&sensor_dev_attr_in0_min.dev_attr.attr,
+	&sensor_dev_attr_in1_min.dev_attr.attr,
+	&sensor_dev_attr_in2_min.dev_attr.attr,
+	&sensor_dev_attr_in3_min.dev_attr.attr,
+	&sensor_dev_attr_in5_min.dev_attr.attr,
+	&sensor_dev_attr_in0_max.dev_attr.attr,
+	&sensor_dev_attr_in1_max.dev_attr.attr,
+	&sensor_dev_attr_in2_max.dev_attr.attr,
+	&sensor_dev_attr_in3_max.dev_attr.attr,
+	&sensor_dev_attr_in5_max.dev_attr.attr,
+	&sensor_dev_attr_in0_alarm.dev_attr.attr,
+	&sensor_dev_attr_in1_alarm.dev_attr.attr,
+	&sensor_dev_attr_in2_alarm.dev_attr.attr,
+	&sensor_dev_attr_in3_alarm.dev_attr.attr,
+	&sensor_dev_attr_in5_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_temp2_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_fault.dev_attr.attr,
+	&dev_attr_alarms.attr,
+	&dev_attr_cpu0_vid.attr,
+	&dev_attr_vrm.attr,
+	NULL
+};
+
+static const struct attribute_group adm1025_group = {
+	.attrs = adm1025_attributes,
+};
+
+static struct attribute *adm1025_attributes_in4[] = {
+	&sensor_dev_attr_in4_input.dev_attr.attr,
+	&sensor_dev_attr_in4_min.dev_attr.attr,
+	&sensor_dev_attr_in4_max.dev_attr.attr,
+	&sensor_dev_attr_in4_alarm.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group adm1025_group_in4 = {
+	.attrs = adm1025_attributes_in4,
+};
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int adm1025_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+	const char *name = "";
+	u8 config;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	/*
+	 * Now we do the remaining detection. A negative kind means that
+	 * the driver was loaded with no force parameter (default), so we
+	 * must both detect and identify the chip. A zero kind means that
+	 * the driver was loaded with the force parameter, the detection
+	 * step shall be skipped. A positive kind means that the driver
+	 * was loaded with the force parameter and a given kind of chip is
+	 * requested, so both the detection and the identification steps
+	 * are skipped.
+	 */
+	config = i2c_smbus_read_byte_data(client, ADM1025_REG_CONFIG);
+	if (kind < 0) { /* detection */
+		if ((config & 0x80) != 0x00
+		 || (i2c_smbus_read_byte_data(client,
+		     ADM1025_REG_STATUS1) & 0xC0) != 0x00
+		 || (i2c_smbus_read_byte_data(client,
+		     ADM1025_REG_STATUS2) & 0xBC) != 0x00) {
+			dev_dbg(&adapter->dev,
+				"ADM1025 detection failed at 0x%02x.\n",
+				client->addr);
+			return -ENODEV;
+		}
+	}
+
+	if (kind <= 0) { /* identification */
+		u8 man_id, chip_id;
+
+		man_id = i2c_smbus_read_byte_data(client, ADM1025_REG_MAN_ID);
+		chip_id = i2c_smbus_read_byte_data(client, ADM1025_REG_CHIP_ID);
+
+		if (man_id == 0x41) { /* Analog Devices */
+			if ((chip_id & 0xF0) == 0x20) { /* ADM1025/ADM1025A */
+				kind = adm1025;
+			}
+		} else
+		if (man_id == 0xA1) { /* Philips */
+			if (client->addr != 0x2E
+			 && (chip_id & 0xF0) == 0x20) { /* NE1619 */
+				kind = ne1619;
+			}
+		}
+
+		if (kind <= 0) { /* identification failed */
+			dev_info(&adapter->dev,
+			    "Unsupported chip (man_id=0x%02X, "
+			    "chip_id=0x%02X).\n", man_id, chip_id);
+			return -ENODEV;
+		}
+	}
+
+	if (kind == adm1025) {
+		name = "adm1025";
+	} else if (kind == ne1619) {
+		name = "ne1619";
+	}
+	strlcpy(info->type, name, I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int adm1025_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct adm1025_data *data;
+	int err;
+	u8 config;
+
+	data = kzalloc(sizeof(struct adm1025_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
+
+	/* Initialize the ADM1025 chip */
+	adm1025_init_client(client);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&client->dev.kobj, &adm1025_group)))
+		goto exit_free;
+
+	/* Pin 11 is either in4 (+12V) or VID4 */
+	config = i2c_smbus_read_byte_data(client, ADM1025_REG_CONFIG);
+	if (!(config & 0x20)) {
+		if ((err = sysfs_create_group(&client->dev.kobj,
+					      &adm1025_group_in4)))
+			goto exit_remove;
+	}
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	return 0;
+
+exit_remove:
+	sysfs_remove_group(&client->dev.kobj, &adm1025_group);
+	sysfs_remove_group(&client->dev.kobj, &adm1025_group_in4);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+static void adm1025_init_client(struct i2c_client *client)
+{
+	u8 reg;
+	struct adm1025_data *data = i2c_get_clientdata(client);
+	int i;
+
+	data->vrm = vid_which_vrm();
+
+	/*
+	 * Set high limits
+	 * Usually we avoid setting limits on driver init, but it happens
+	 * that the ADM1025 comes with stupid default limits (all registers
+	 * set to 0). In case the chip has not gone through any limit
+	 * setting yet, we better set the high limits to the max so that
+	 * no alarm triggers.
+	 */
+	for (i=0; i<6; i++) {
+		reg = i2c_smbus_read_byte_data(client,
+					       ADM1025_REG_IN_MAX(i));
+		if (reg == 0)
+			i2c_smbus_write_byte_data(client,
+						  ADM1025_REG_IN_MAX(i),
+						  0xFF);
+	}
+	for (i=0; i<2; i++) {
+		reg = i2c_smbus_read_byte_data(client,
+					       ADM1025_REG_TEMP_HIGH(i));
+		if (reg == 0)
+			i2c_smbus_write_byte_data(client,
+						  ADM1025_REG_TEMP_HIGH(i),
+						  0x7F);
+	}
+
+	/*
+	 * Start the conversions
+	 */
+	reg = i2c_smbus_read_byte_data(client, ADM1025_REG_CONFIG);
+	if (!(reg & 0x01))
+		i2c_smbus_write_byte_data(client, ADM1025_REG_CONFIG,
+					  (reg&0x7E)|0x01);
+}
+
+static int adm1025_remove(struct i2c_client *client)
+{
+	struct adm1025_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &adm1025_group);
+	sysfs_remove_group(&client->dev.kobj, &adm1025_group_in4);
+
+	kfree(data);
+	return 0;
+}
+
+static struct adm1025_data *adm1025_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1025_data *data = i2c_get_clientdata(client);
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
+		int i;
+
+		dev_dbg(&client->dev, "Updating data.\n");
+		for (i=0; i<6; i++) {
+			data->in[i] = i2c_smbus_read_byte_data(client,
+				      ADM1025_REG_IN(i));
+			data->in_min[i] = i2c_smbus_read_byte_data(client,
+					  ADM1025_REG_IN_MIN(i));
+			data->in_max[i] = i2c_smbus_read_byte_data(client,
+					  ADM1025_REG_IN_MAX(i));
+		}
+		for (i=0; i<2; i++) {
+			data->temp[i] = i2c_smbus_read_byte_data(client,
+					ADM1025_REG_TEMP(i));
+			data->temp_min[i] = i2c_smbus_read_byte_data(client,
+					    ADM1025_REG_TEMP_LOW(i));
+			data->temp_max[i] = i2c_smbus_read_byte_data(client,
+					    ADM1025_REG_TEMP_HIGH(i));
+		}
+		data->alarms = i2c_smbus_read_byte_data(client,
+			       ADM1025_REG_STATUS1)
+			     | (i2c_smbus_read_byte_data(client,
+				ADM1025_REG_STATUS2) << 8);
+		data->vid = (i2c_smbus_read_byte_data(client,
+			     ADM1025_REG_VID) & 0x0f)
+			  | ((i2c_smbus_read_byte_data(client,
+			      ADM1025_REG_VID4) & 0x01) << 4);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init sensors_adm1025_init(void)
+{
+	return i2c_add_driver(&adm1025_driver);
+}
+
+static void __exit sensors_adm1025_exit(void)
+{
+	i2c_del_driver(&adm1025_driver);
+}
+
+MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
+MODULE_DESCRIPTION("ADM1025 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_adm1025_init);
+module_exit(sensors_adm1025_exit);
diff --git a/drivers/hwmon/adm1026.c b/drivers/hwmon/adm1026.c
new file mode 100644
index 0000000..ff7de40
--- /dev/null
+++ b/drivers/hwmon/adm1026.c
@@ -0,0 +1,1792 @@
+/*
+    adm1026.c - Part of lm_sensors, Linux kernel modules for hardware
+	     monitoring
+    Copyright (C) 2002, 2003  Philip Pokorny <ppokorny@penguincomputing.com>
+    Copyright (C) 2004 Justin Thiessen <jthiessen@penguincomputing.com>
+
+    Chip details at:
+
+    <http://www.analog.com/UploadedFiles/Data_Sheets/779263102ADM1026_a.pdf>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon-vid.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_1(adm1026);
+
+static int gpio_input[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
+				-1, -1, -1, -1, -1, -1, -1, -1 };
+static int gpio_output[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
+				-1, -1, -1, -1, -1, -1, -1, -1 };
+static int gpio_inverted[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
+				-1, -1, -1, -1, -1, -1, -1, -1 };
+static int gpio_normal[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1,
+				-1, -1, -1, -1, -1, -1, -1, -1 };
+static int gpio_fan[8] = { -1, -1, -1, -1, -1, -1, -1, -1 };
+module_param_array(gpio_input, int, NULL, 0);
+MODULE_PARM_DESC(gpio_input, "List of GPIO pins (0-16) to program as inputs");
+module_param_array(gpio_output, int, NULL, 0);
+MODULE_PARM_DESC(gpio_output, "List of GPIO pins (0-16) to program as "
+	"outputs");
+module_param_array(gpio_inverted, int, NULL, 0);
+MODULE_PARM_DESC(gpio_inverted, "List of GPIO pins (0-16) to program as "
+	"inverted");
+module_param_array(gpio_normal, int, NULL, 0);
+MODULE_PARM_DESC(gpio_normal, "List of GPIO pins (0-16) to program as "
+	"normal/non-inverted");
+module_param_array(gpio_fan, int, NULL, 0);
+MODULE_PARM_DESC(gpio_fan, "List of GPIO pins (0-7) to program as fan tachs");
+
+/* Many ADM1026 constants specified below */
+
+/* The ADM1026 registers */
+#define ADM1026_REG_CONFIG1	0x00
+#define CFG1_MONITOR		0x01
+#define CFG1_INT_ENABLE		0x02
+#define CFG1_INT_CLEAR		0x04
+#define CFG1_AIN8_9		0x08
+#define CFG1_THERM_HOT		0x10
+#define CFG1_DAC_AFC		0x20
+#define CFG1_PWM_AFC		0x40
+#define CFG1_RESET		0x80
+
+#define ADM1026_REG_CONFIG2	0x01
+/* CONFIG2 controls FAN0/GPIO0 through FAN7/GPIO7 */
+
+#define ADM1026_REG_CONFIG3	0x07
+#define CFG3_GPIO16_ENABLE	0x01
+#define CFG3_CI_CLEAR		0x02
+#define CFG3_VREF_250		0x04
+#define CFG3_GPIO16_DIR		0x40
+#define CFG3_GPIO16_POL		0x80
+
+#define ADM1026_REG_E2CONFIG	0x13
+#define E2CFG_READ		0x01
+#define E2CFG_WRITE		0x02
+#define E2CFG_ERASE		0x04
+#define E2CFG_ROM		0x08
+#define E2CFG_CLK_EXT		0x80
+
+/* There are 10 general analog inputs and 7 dedicated inputs
+ * They are:
+ *    0 - 9  =  AIN0 - AIN9
+ *       10  =  Vbat
+ *       11  =  3.3V Standby
+ *       12  =  3.3V Main
+ *       13  =  +5V
+ *       14  =  Vccp (CPU core voltage)
+ *       15  =  +12V
+ *       16  =  -12V
+ */
+static u16 ADM1026_REG_IN[] = {
+		0x30, 0x31, 0x32, 0x33, 0x34, 0x35,
+		0x36, 0x37, 0x27, 0x29, 0x26, 0x2a,
+		0x2b, 0x2c, 0x2d, 0x2e, 0x2f
+	};
+static u16 ADM1026_REG_IN_MIN[] = {
+		0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d,
+		0x5e, 0x5f, 0x6d, 0x49, 0x6b, 0x4a,
+		0x4b, 0x4c, 0x4d, 0x4e, 0x4f
+	};
+static u16 ADM1026_REG_IN_MAX[] = {
+		0x50, 0x51, 0x52, 0x53, 0x54, 0x55,
+		0x56, 0x57, 0x6c, 0x41, 0x6a, 0x42,
+		0x43, 0x44, 0x45, 0x46, 0x47
+	};
+
+/* Temperatures are:
+ *    0 - Internal
+ *    1 - External 1
+ *    2 - External 2
+ */
+static u16 ADM1026_REG_TEMP[] = { 0x1f, 0x28, 0x29 };
+static u16 ADM1026_REG_TEMP_MIN[] = { 0x69, 0x48, 0x49 };
+static u16 ADM1026_REG_TEMP_MAX[] = { 0x68, 0x40, 0x41 };
+static u16 ADM1026_REG_TEMP_TMIN[] = { 0x10, 0x11, 0x12 };
+static u16 ADM1026_REG_TEMP_THERM[] = { 0x0d, 0x0e, 0x0f };
+static u16 ADM1026_REG_TEMP_OFFSET[] = { 0x1e, 0x6e, 0x6f };
+
+#define ADM1026_REG_FAN(nr)		(0x38 + (nr))
+#define ADM1026_REG_FAN_MIN(nr)		(0x60 + (nr))
+#define ADM1026_REG_FAN_DIV_0_3		0x02
+#define ADM1026_REG_FAN_DIV_4_7		0x03
+
+#define ADM1026_REG_DAC			0x04
+#define ADM1026_REG_PWM			0x05
+
+#define ADM1026_REG_GPIO_CFG_0_3	0x08
+#define ADM1026_REG_GPIO_CFG_4_7	0x09
+#define ADM1026_REG_GPIO_CFG_8_11	0x0a
+#define ADM1026_REG_GPIO_CFG_12_15	0x0b
+/* CFG_16 in REG_CFG3 */
+#define ADM1026_REG_GPIO_STATUS_0_7	0x24
+#define ADM1026_REG_GPIO_STATUS_8_15	0x25
+/* STATUS_16 in REG_STATUS4 */
+#define ADM1026_REG_GPIO_MASK_0_7	0x1c
+#define ADM1026_REG_GPIO_MASK_8_15	0x1d
+/* MASK_16 in REG_MASK4 */
+
+#define ADM1026_REG_COMPANY		0x16
+#define ADM1026_REG_VERSTEP		0x17
+/* These are the recognized values for the above regs */
+#define ADM1026_COMPANY_ANALOG_DEV	0x41
+#define ADM1026_VERSTEP_GENERIC		0x40
+#define ADM1026_VERSTEP_ADM1026		0x44
+
+#define ADM1026_REG_MASK1		0x18
+#define ADM1026_REG_MASK2		0x19
+#define ADM1026_REG_MASK3		0x1a
+#define ADM1026_REG_MASK4		0x1b
+
+#define ADM1026_REG_STATUS1		0x20
+#define ADM1026_REG_STATUS2		0x21
+#define ADM1026_REG_STATUS3		0x22
+#define ADM1026_REG_STATUS4		0x23
+
+#define ADM1026_FAN_ACTIVATION_TEMP_HYST -6
+#define ADM1026_FAN_CONTROL_TEMP_RANGE	20
+#define ADM1026_PWM_MAX			255
+
+/* Conversions. Rounding and limit checking is only done on the TO_REG
+ * variants. Note that you should be a bit careful with which arguments
+ * these macros are called: arguments may be evaluated more than once.
+ */
+
+/* IN are scaled acording to built-in resistors.  These are the
+ *   voltages corresponding to 3/4 of full scale (192 or 0xc0)
+ *   NOTE: The -12V input needs an additional factor to account
+ *      for the Vref pullup resistor.
+ *      NEG12_OFFSET = SCALE * Vref / V-192 - Vref
+ *                   = 13875 * 2.50 / 1.875 - 2500
+ *                   = 16000
+ *
+ * The values in this table are based on Table II, page 15 of the
+ *    datasheet.
+ */
+static int adm1026_scaling[] = { /* .001 Volts */
+		2250, 2250, 2250, 2250, 2250, 2250,
+		1875, 1875, 1875, 1875, 3000, 3330,
+		3330, 4995, 2250, 12000, 13875
+	};
+#define NEG12_OFFSET  16000
+#define SCALE(val, from, to) (((val)*(to) + ((from)/2))/(from))
+#define INS_TO_REG(n, val)  (SENSORS_LIMIT(SCALE(val, adm1026_scaling[n], 192),\
+	0, 255))
+#define INS_FROM_REG(n, val) (SCALE(val, 192, adm1026_scaling[n]))
+
+/* FAN speed is measured using 22.5kHz clock and counts for 2 pulses
+ *   and we assume a 2 pulse-per-rev fan tach signal
+ *      22500 kHz * 60 (sec/min) * 2 (pulse) / 2 (pulse/rev) == 1350000
+ */
+#define FAN_TO_REG(val, div)  ((val) <= 0 ? 0xff : \
+				SENSORS_LIMIT(1350000/((val)*(div)), 1, 254))
+#define FAN_FROM_REG(val, div) ((val) == 0 ? -1:(val) == 0xff ? 0 : \
+				1350000/((val)*(div)))
+#define DIV_FROM_REG(val) (1<<(val))
+#define DIV_TO_REG(val) ((val) >= 8 ? 3 : (val) >= 4 ? 2 : (val) >= 2 ? 1 : 0)
+
+/* Temperature is reported in 1 degC increments */
+#define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)+((val)<0 ? -500 : 500))/1000,\
+	-127, 127))
+#define TEMP_FROM_REG(val) ((val) * 1000)
+#define OFFSET_TO_REG(val) (SENSORS_LIMIT(((val)+((val)<0 ? -500 : 500))/1000,\
+	-127, 127))
+#define OFFSET_FROM_REG(val) ((val) * 1000)
+
+#define PWM_TO_REG(val) (SENSORS_LIMIT(val, 0, 255))
+#define PWM_FROM_REG(val) (val)
+
+#define PWM_MIN_TO_REG(val) ((val) & 0xf0)
+#define PWM_MIN_FROM_REG(val) (((val) & 0xf0) + ((val) >> 4))
+
+/* Analog output is a voltage, and scaled to millivolts.  The datasheet
+ *   indicates that the DAC could be used to drive the fans, but in our
+ *   example board (Arima HDAMA) it isn't connected to the fans at all.
+ */
+#define DAC_TO_REG(val) (SENSORS_LIMIT(((((val)*255)+500)/2500), 0, 255))
+#define DAC_FROM_REG(val) (((val)*2500)/255)
+
+/* Chip sampling rates
+ *
+ * Some sensors are not updated more frequently than once per second
+ *    so it doesn't make sense to read them more often than that.
+ *    We cache the results and return the saved data if the driver
+ *    is called again before a second has elapsed.
+ *
+ * Also, there is significant configuration data for this chip
+ *    So, we keep the config data up to date in the cache
+ *    when it is written and only sample it once every 5 *minutes*
+ */
+#define ADM1026_DATA_INTERVAL		(1 * HZ)
+#define ADM1026_CONFIG_INTERVAL		(5 * 60 * HZ)
+
+/* We allow for multiple chips in a single system.
+ *
+ * For each registered ADM1026, we need to keep state information
+ * at client->data. The adm1026_data structure is dynamically
+ * allocated, when a new client structure is allocated. */
+
+struct pwm_data {
+	u8 pwm;
+	u8 enable;
+	u8 auto_pwm_min;
+};
+
+struct adm1026_data {
+	struct device *hwmon_dev;
+
+	struct mutex update_lock;
+	int valid;		/* !=0 if following fields are valid */
+	unsigned long last_reading;	/* In jiffies */
+	unsigned long last_config;	/* In jiffies */
+
+	u8 in[17];		/* Register value */
+	u8 in_max[17];		/* Register value */
+	u8 in_min[17];		/* Register value */
+	s8 temp[3];		/* Register value */
+	s8 temp_min[3];		/* Register value */
+	s8 temp_max[3];		/* Register value */
+	s8 temp_tmin[3];	/* Register value */
+	s8 temp_crit[3];	/* Register value */
+	s8 temp_offset[3];	/* Register value */
+	u8 fan[8];		/* Register value */
+	u8 fan_min[8];		/* Register value */
+	u8 fan_div[8];		/* Decoded value */
+	struct pwm_data pwm1;	/* Pwm control values */
+	u8 vrm;			/* VRM version */
+	u8 analog_out;		/* Register value (DAC) */
+	long alarms;		/* Register encoding, combined */
+	long alarm_mask;	/* Register encoding, combined */
+	long gpio;		/* Register encoding, combined */
+	long gpio_mask;		/* Register encoding, combined */
+	u8 gpio_config[17];	/* Decoded value */
+	u8 config1;		/* Register value */
+	u8 config2;		/* Register value */
+	u8 config3;		/* Register value */
+};
+
+static int adm1026_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int adm1026_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
+static int adm1026_remove(struct i2c_client *client);
+static int adm1026_read_value(struct i2c_client *client, u8 reg);
+static int adm1026_write_value(struct i2c_client *client, u8 reg, int value);
+static void adm1026_print_gpio(struct i2c_client *client);
+static void adm1026_fixup_gpio(struct i2c_client *client);
+static struct adm1026_data *adm1026_update_device(struct device *dev);
+static void adm1026_init_client(struct i2c_client *client);
+
+
+static const struct i2c_device_id adm1026_id[] = {
+	{ "adm1026", adm1026 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adm1026_id);
+
+static struct i2c_driver adm1026_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "adm1026",
+	},
+	.probe		= adm1026_probe,
+	.remove		= adm1026_remove,
+	.id_table	= adm1026_id,
+	.detect		= adm1026_detect,
+	.address_data	= &addr_data,
+};
+
+static int adm1026_read_value(struct i2c_client *client, u8 reg)
+{
+	int res;
+
+	if (reg < 0x80) {
+		/* "RAM" locations */
+		res = i2c_smbus_read_byte_data(client, reg) & 0xff;
+	} else {
+		/* EEPROM, do nothing */
+		res = 0;
+	}
+	return res;
+}
+
+static int adm1026_write_value(struct i2c_client *client, u8 reg, int value)
+{
+	int res;
+
+	if (reg < 0x80) {
+		/* "RAM" locations */
+		res = i2c_smbus_write_byte_data(client, reg, value);
+	} else {
+		/* EEPROM, do nothing */
+		res = 0;
+	}
+	return res;
+}
+
+static void adm1026_init_client(struct i2c_client *client)
+{
+	int value, i;
+	struct adm1026_data *data = i2c_get_clientdata(client);
+
+	dev_dbg(&client->dev, "Initializing device\n");
+	/* Read chip config */
+	data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1);
+	data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2);
+	data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3);
+
+	/* Inform user of chip config */
+	dev_dbg(&client->dev, "ADM1026_REG_CONFIG1 is: 0x%02x\n",
+		data->config1);
+	if ((data->config1 & CFG1_MONITOR) == 0) {
+		dev_dbg(&client->dev, "Monitoring not currently "
+			"enabled.\n");
+	}
+	if (data->config1 & CFG1_INT_ENABLE) {
+		dev_dbg(&client->dev, "SMBALERT interrupts are "
+			"enabled.\n");
+	}
+	if (data->config1 & CFG1_AIN8_9) {
+		dev_dbg(&client->dev, "in8 and in9 enabled. "
+			"temp3 disabled.\n");
+	} else {
+		dev_dbg(&client->dev, "temp3 enabled.  in8 and "
+			"in9 disabled.\n");
+	}
+	if (data->config1 & CFG1_THERM_HOT) {
+		dev_dbg(&client->dev, "Automatic THERM, PWM, "
+			"and temp limits enabled.\n");
+	}
+
+	if (data->config3 & CFG3_GPIO16_ENABLE) {
+		dev_dbg(&client->dev, "GPIO16 enabled.  THERM "
+			"pin disabled.\n");
+	} else {
+		dev_dbg(&client->dev, "THERM pin enabled.  "
+			"GPIO16 disabled.\n");
+	}
+	if (data->config3 & CFG3_VREF_250) {
+		dev_dbg(&client->dev, "Vref is 2.50 Volts.\n");
+	} else {
+		dev_dbg(&client->dev, "Vref is 1.82 Volts.\n");
+	}
+	/* Read and pick apart the existing GPIO configuration */
+	value = 0;
+	for (i = 0;i <= 15;++i) {
+		if ((i & 0x03) == 0) {
+			value = adm1026_read_value(client,
+					ADM1026_REG_GPIO_CFG_0_3 + i/4);
+		}
+		data->gpio_config[i] = value & 0x03;
+		value >>= 2;
+	}
+	data->gpio_config[16] = (data->config3 >> 6) & 0x03;
+
+	/* ... and then print it */
+	adm1026_print_gpio(client);
+
+	/* If the user asks us to reprogram the GPIO config, then
+	 * do it now.
+	 */
+	if (gpio_input[0] != -1 || gpio_output[0] != -1
+		|| gpio_inverted[0] != -1 || gpio_normal[0] != -1
+		|| gpio_fan[0] != -1) {
+		adm1026_fixup_gpio(client);
+	}
+
+	/* WE INTENTIONALLY make no changes to the limits,
+	 *   offsets, pwms, fans and zones.  If they were
+	 *   configured, we don't want to mess with them.
+	 *   If they weren't, the default is 100% PWM, no
+	 *   control and will suffice until 'sensors -s'
+	 *   can be run by the user.  We DO set the default
+	 *   value for pwm1.auto_pwm_min to its maximum
+	 *   so that enabling automatic pwm fan control
+	 *   without first setting a value for pwm1.auto_pwm_min
+	 *   will not result in potentially dangerous fan speed decrease.
+	 */
+	data->pwm1.auto_pwm_min=255;
+	/* Start monitoring */
+	value = adm1026_read_value(client, ADM1026_REG_CONFIG1);
+	/* Set MONITOR, clear interrupt acknowledge and s/w reset */
+	value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET);
+	dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
+	data->config1 = value;
+	adm1026_write_value(client, ADM1026_REG_CONFIG1, value);
+
+	/* initialize fan_div[] to hardware defaults */
+	value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) |
+		(adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8);
+	for (i = 0;i <= 7;++i) {
+		data->fan_div[i] = DIV_FROM_REG(value & 0x03);
+		value >>= 2;
+	}
+}
+
+static void adm1026_print_gpio(struct i2c_client *client)
+{
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int i;
+
+	dev_dbg(&client->dev, "GPIO config is:\n");
+	for (i = 0;i <= 7;++i) {
+		if (data->config2 & (1 << i)) {
+			dev_dbg(&client->dev, "\t%sGP%s%d\n",
+				data->gpio_config[i] & 0x02 ? "" : "!",
+				data->gpio_config[i] & 0x01 ? "OUT" : "IN",
+				i);
+		} else {
+			dev_dbg(&client->dev, "\tFAN%d\n", i);
+		}
+	}
+	for (i = 8;i <= 15;++i) {
+		dev_dbg(&client->dev, "\t%sGP%s%d\n",
+			data->gpio_config[i] & 0x02 ? "" : "!",
+			data->gpio_config[i] & 0x01 ? "OUT" : "IN",
+			i);
+	}
+	if (data->config3 & CFG3_GPIO16_ENABLE) {
+		dev_dbg(&client->dev, "\t%sGP%s16\n",
+			data->gpio_config[16] & 0x02 ? "" : "!",
+			data->gpio_config[16] & 0x01 ? "OUT" : "IN");
+	} else {
+		/* GPIO16 is THERM */
+		dev_dbg(&client->dev, "\tTHERM\n");
+	}
+}
+
+static void adm1026_fixup_gpio(struct i2c_client *client)
+{
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int i;
+	int value;
+
+	/* Make the changes requested. */
+	/* We may need to unlock/stop monitoring or soft-reset the
+	 *    chip before we can make changes.  This hasn't been
+	 *    tested much.  FIXME
+	 */
+
+	/* Make outputs */
+	for (i = 0;i <= 16;++i) {
+		if (gpio_output[i] >= 0 && gpio_output[i] <= 16) {
+			data->gpio_config[gpio_output[i]] |= 0x01;
+		}
+		/* if GPIO0-7 is output, it isn't a FAN tach */
+		if (gpio_output[i] >= 0 && gpio_output[i] <= 7) {
+			data->config2 |= 1 << gpio_output[i];
+		}
+	}
+
+	/* Input overrides output */
+	for (i = 0;i <= 16;++i) {
+		if (gpio_input[i] >= 0 && gpio_input[i] <= 16) {
+			data->gpio_config[gpio_input[i]] &= ~ 0x01;
+		}
+		/* if GPIO0-7 is input, it isn't a FAN tach */
+		if (gpio_input[i] >= 0 && gpio_input[i] <= 7) {
+			data->config2 |= 1 << gpio_input[i];
+		}
+	}
+
+	/* Inverted */
+	for (i = 0;i <= 16;++i) {
+		if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16) {
+			data->gpio_config[gpio_inverted[i]] &= ~ 0x02;
+		}
+	}
+
+	/* Normal overrides inverted */
+	for (i = 0;i <= 16;++i) {
+		if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16) {
+			data->gpio_config[gpio_normal[i]] |= 0x02;
+		}
+	}
+
+	/* Fan overrides input and output */
+	for (i = 0;i <= 7;++i) {
+		if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7) {
+			data->config2 &= ~(1 << gpio_fan[i]);
+		}
+	}
+
+	/* Write new configs to registers */
+	adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2);
+	data->config3 = (data->config3 & 0x3f)
+			| ((data->gpio_config[16] & 0x03) << 6);
+	adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3);
+	for (i = 15, value = 0;i >= 0;--i) {
+		value <<= 2;
+		value |= data->gpio_config[i] & 0x03;
+		if ((i & 0x03) == 0) {
+			adm1026_write_value(client,
+					ADM1026_REG_GPIO_CFG_0_3 + i/4,
+					value);
+			value = 0;
+		}
+	}
+
+	/* Print the new config */
+	adm1026_print_gpio(client);
+}
+
+
+static struct adm1026_data *adm1026_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int i;
+	long value, alarms, gpio;
+
+	mutex_lock(&data->update_lock);
+	if (!data->valid
+	    || time_after(jiffies, data->last_reading + ADM1026_DATA_INTERVAL)) {
+		/* Things that change quickly */
+		dev_dbg(&client->dev, "Reading sensor values\n");
+		for (i = 0;i <= 16;++i) {
+			data->in[i] =
+			    adm1026_read_value(client, ADM1026_REG_IN[i]);
+		}
+
+		for (i = 0;i <= 7;++i) {
+			data->fan[i] =
+			    adm1026_read_value(client, ADM1026_REG_FAN(i));
+		}
+
+		for (i = 0;i <= 2;++i) {
+			/* NOTE: temp[] is s8 and we assume 2's complement
+			 *   "conversion" in the assignment */
+			data->temp[i] =
+			    adm1026_read_value(client, ADM1026_REG_TEMP[i]);
+		}
+
+		data->pwm1.pwm = adm1026_read_value(client,
+			ADM1026_REG_PWM);
+		data->analog_out = adm1026_read_value(client,
+			ADM1026_REG_DAC);
+		/* GPIO16 is MSbit of alarms, move it to gpio */
+		alarms = adm1026_read_value(client, ADM1026_REG_STATUS4);
+		gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */
+		alarms &= 0x7f;
+		alarms <<= 8;
+		alarms |= adm1026_read_value(client, ADM1026_REG_STATUS3);
+		alarms <<= 8;
+		alarms |= adm1026_read_value(client, ADM1026_REG_STATUS2);
+		alarms <<= 8;
+		alarms |= adm1026_read_value(client, ADM1026_REG_STATUS1);
+		data->alarms = alarms;
+
+		/* Read the GPIO values */
+		gpio |= adm1026_read_value(client,
+			ADM1026_REG_GPIO_STATUS_8_15);
+		gpio <<= 8;
+		gpio |= adm1026_read_value(client,
+			ADM1026_REG_GPIO_STATUS_0_7);
+		data->gpio = gpio;
+
+		data->last_reading = jiffies;
+	}; /* last_reading */
+
+	if (!data->valid ||
+	    time_after(jiffies, data->last_config + ADM1026_CONFIG_INTERVAL)) {
+		/* Things that don't change often */
+		dev_dbg(&client->dev, "Reading config values\n");
+		for (i = 0;i <= 16;++i) {
+			data->in_min[i] = adm1026_read_value(client,
+				ADM1026_REG_IN_MIN[i]);
+			data->in_max[i] = adm1026_read_value(client,
+				ADM1026_REG_IN_MAX[i]);
+		}
+
+		value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3)
+			| (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7)
+			<< 8);
+		for (i = 0;i <= 7;++i) {
+			data->fan_min[i] = adm1026_read_value(client,
+				ADM1026_REG_FAN_MIN(i));
+			data->fan_div[i] = DIV_FROM_REG(value & 0x03);
+			value >>= 2;
+		}
+
+		for (i = 0; i <= 2; ++i) {
+			/* NOTE: temp_xxx[] are s8 and we assume 2's
+			 *    complement "conversion" in the assignment
+			 */
+			data->temp_min[i] = adm1026_read_value(client,
+				ADM1026_REG_TEMP_MIN[i]);
+			data->temp_max[i] = adm1026_read_value(client,
+				ADM1026_REG_TEMP_MAX[i]);
+			data->temp_tmin[i] = adm1026_read_value(client,
+				ADM1026_REG_TEMP_TMIN[i]);
+			data->temp_crit[i] = adm1026_read_value(client,
+				ADM1026_REG_TEMP_THERM[i]);
+			data->temp_offset[i] = adm1026_read_value(client,
+				ADM1026_REG_TEMP_OFFSET[i]);
+		}
+
+		/* Read the STATUS/alarm masks */
+		alarms = adm1026_read_value(client, ADM1026_REG_MASK4);
+		gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */
+		alarms = (alarms & 0x7f) << 8;
+		alarms |= adm1026_read_value(client, ADM1026_REG_MASK3);
+		alarms <<= 8;
+		alarms |= adm1026_read_value(client, ADM1026_REG_MASK2);
+		alarms <<= 8;
+		alarms |= adm1026_read_value(client, ADM1026_REG_MASK1);
+		data->alarm_mask = alarms;
+
+		/* Read the GPIO values */
+		gpio |= adm1026_read_value(client,
+			ADM1026_REG_GPIO_MASK_8_15);
+		gpio <<= 8;
+		gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_0_7);
+		data->gpio_mask = gpio;
+
+		/* Read various values from CONFIG1 */
+		data->config1 = adm1026_read_value(client,
+			ADM1026_REG_CONFIG1);
+		if (data->config1 & CFG1_PWM_AFC) {
+			data->pwm1.enable = 2;
+			data->pwm1.auto_pwm_min =
+				PWM_MIN_FROM_REG(data->pwm1.pwm);
+		}
+		/* Read the GPIO config */
+		data->config2 = adm1026_read_value(client,
+			ADM1026_REG_CONFIG2);
+		data->config3 = adm1026_read_value(client,
+			ADM1026_REG_CONFIG3);
+		data->gpio_config[16] = (data->config3 >> 6) & 0x03;
+
+		value = 0;
+		for (i = 0;i <= 15;++i) {
+			if ((i & 0x03) == 0) {
+				value = adm1026_read_value(client,
+					    ADM1026_REG_GPIO_CFG_0_3 + i/4);
+			}
+			data->gpio_config[i] = value & 0x03;
+			value >>= 2;
+		}
+
+		data->last_config = jiffies;
+	}; /* last_config */
+
+	data->valid = 1;
+	mutex_unlock(&data->update_lock);
+	return data;
+}
+
+static ssize_t show_in(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in[nr]));
+}
+static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr]));
+}
+static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_min[nr] = INS_TO_REG(nr, val);
+	adm1026_write_value(client, ADM1026_REG_IN_MIN[nr], data->in_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr]));
+}
+static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_max[nr] = INS_TO_REG(nr, val);
+	adm1026_write_value(client, ADM1026_REG_IN_MAX[nr], data->in_max[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define in_reg(offset)						\
+static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in,	\
+		NULL, offset);					\
+static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,	\
+		show_in_min, set_in_min, offset);		\
+static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,	\
+		show_in_max, set_in_max, offset);
+
+
+in_reg(0);
+in_reg(1);
+in_reg(2);
+in_reg(3);
+in_reg(4);
+in_reg(5);
+in_reg(6);
+in_reg(7);
+in_reg(8);
+in_reg(9);
+in_reg(10);
+in_reg(11);
+in_reg(12);
+in_reg(13);
+in_reg(14);
+in_reg(15);
+
+static ssize_t show_in16(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in[16]) -
+		NEG12_OFFSET);
+}
+static ssize_t show_in16_min(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_min[16])
+		- NEG12_OFFSET);
+}
+static ssize_t set_in16_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_min[16] = INS_TO_REG(16, val + NEG12_OFFSET);
+	adm1026_write_value(client, ADM1026_REG_IN_MIN[16], data->in_min[16]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t show_in16_max(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_max[16])
+			- NEG12_OFFSET);
+}
+static ssize_t set_in16_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_max[16] = INS_TO_REG(16, val+NEG12_OFFSET);
+	adm1026_write_value(client, ADM1026_REG_IN_MAX[16], data->in_max[16]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_in16, NULL, 16);
+static SENSOR_DEVICE_ATTR(in16_min, S_IRUGO | S_IWUSR, show_in16_min, set_in16_min, 16);
+static SENSOR_DEVICE_ATTR(in16_max, S_IRUGO | S_IWUSR, show_in16_max, set_in16_max, 16);
+
+
+
+
+/* Now add fan read/write functions */
+
+static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],
+		data->fan_div[nr]));
+}
+static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr],
+		data->fan_div[nr]));
+}
+static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->fan_min[nr] = FAN_TO_REG(val, data->fan_div[nr]);
+	adm1026_write_value(client, ADM1026_REG_FAN_MIN(nr),
+		data->fan_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define fan_offset(offset)						\
+static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan, NULL,	\
+		offset - 1);						\
+static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,		\
+		show_fan_min, set_fan_min, offset - 1);
+
+fan_offset(1);
+fan_offset(2);
+fan_offset(3);
+fan_offset(4);
+fan_offset(5);
+fan_offset(6);
+fan_offset(7);
+fan_offset(8);
+
+/* Adjust fan_min to account for new fan divisor */
+static void fixup_fan_min(struct device *dev, int fan, int old_div)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int new_min;
+	int new_div = data->fan_div[fan];
+
+	/* 0 and 0xff are special.  Don't adjust them */
+	if (data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff) {
+		return;
+	}
+
+	new_min = data->fan_min[fan] * old_div / new_div;
+	new_min = SENSORS_LIMIT(new_min, 1, 254);
+	data->fan_min[fan] = new_min;
+	adm1026_write_value(client, ADM1026_REG_FAN_MIN(fan), new_min);
+}
+
+/* Now add fan_div read/write functions */
+static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%d\n", data->fan_div[nr]);
+}
+static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int val, orig_div, new_div, shift;
+
+	val = simple_strtol(buf, NULL, 10);
+	new_div = DIV_TO_REG(val);
+	if (new_div == 0) {
+		return -EINVAL;
+	}
+	mutex_lock(&data->update_lock);
+	orig_div = data->fan_div[nr];
+	data->fan_div[nr] = DIV_FROM_REG(new_div);
+
+	if (nr < 4) { /* 0 <= nr < 4 */
+		shift = 2 * nr;
+		adm1026_write_value(client, ADM1026_REG_FAN_DIV_0_3,
+			((DIV_TO_REG(orig_div) & (~(0x03 << shift))) |
+			(new_div << shift)));
+	} else { /* 3 < nr < 8 */
+		shift = 2 * (nr - 4);
+		adm1026_write_value(client, ADM1026_REG_FAN_DIV_4_7,
+			((DIV_TO_REG(orig_div) & (~(0x03 << (2 * shift)))) |
+			(new_div << shift)));
+	}
+
+	if (data->fan_div[nr] != orig_div) {
+		fixup_fan_min(dev, nr, orig_div);
+	}
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define fan_offset_div(offset)						\
+static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR,		\
+		show_fan_div, set_fan_div, offset - 1);
+
+fan_offset_div(1);
+fan_offset_div(2);
+fan_offset_div(3);
+fan_offset_div(4);
+fan_offset_div(5);
+fan_offset_div(6);
+fan_offset_div(7);
+fan_offset_div(8);
+
+/* Temps */
+static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));
+}
+static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr]));
+}
+static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_min[nr] = TEMP_TO_REG(val);
+	adm1026_write_value(client, ADM1026_REG_TEMP_MIN[nr],
+		data->temp_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr]));
+}
+static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_max[nr] = TEMP_TO_REG(val);
+	adm1026_write_value(client, ADM1026_REG_TEMP_MAX[nr],
+		data->temp_max[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define temp_reg(offset)						\
+static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp,	\
+		NULL, offset - 1);					\
+static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR,	\
+		show_temp_min, set_temp_min, offset - 1);		\
+static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR,	\
+		show_temp_max, set_temp_max, offset - 1);
+
+
+temp_reg(1);
+temp_reg(2);
+temp_reg(3);
+
+static ssize_t show_temp_offset(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_offset[nr]));
+}
+static ssize_t set_temp_offset(struct device *dev,
+		struct device_attribute *attr, const char *buf,
+		size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_offset[nr] = TEMP_TO_REG(val);
+	adm1026_write_value(client, ADM1026_REG_TEMP_OFFSET[nr],
+		data->temp_offset[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define temp_offset_reg(offset)							\
+static SENSOR_DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR,		\
+		show_temp_offset, set_temp_offset, offset - 1);
+
+temp_offset_reg(1);
+temp_offset_reg(2);
+temp_offset_reg(3);
+
+static ssize_t show_temp_auto_point1_temp_hyst(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(
+		ADM1026_FAN_ACTIVATION_TEMP_HYST + data->temp_tmin[nr]));
+}
+static ssize_t show_temp_auto_point2_temp(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr] +
+		ADM1026_FAN_CONTROL_TEMP_RANGE));
+}
+static ssize_t show_temp_auto_point1_temp(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr]));
+}
+static ssize_t set_temp_auto_point1_temp(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_tmin[nr] = TEMP_TO_REG(val);
+	adm1026_write_value(client, ADM1026_REG_TEMP_TMIN[nr],
+		data->temp_tmin[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define temp_auto_point(offset)						\
+static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp,		\
+		S_IRUGO | S_IWUSR, show_temp_auto_point1_temp,		\
+		set_temp_auto_point1_temp, offset - 1);			\
+static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp_hyst, S_IRUGO,\
+		show_temp_auto_point1_temp_hyst, NULL, offset - 1);	\
+static SENSOR_DEVICE_ATTR(temp##offset##_auto_point2_temp, S_IRUGO,	\
+		show_temp_auto_point2_temp, NULL, offset - 1);
+
+temp_auto_point(1);
+temp_auto_point(2);
+temp_auto_point(3);
+
+static ssize_t show_temp_crit_enable(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%d\n", (data->config1 & CFG1_THERM_HOT) >> 4);
+}
+static ssize_t set_temp_crit_enable(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+
+	if ((val == 1) || (val==0)) {
+		mutex_lock(&data->update_lock);
+		data->config1 = (data->config1 & ~CFG1_THERM_HOT) | (val << 4);
+		adm1026_write_value(client, ADM1026_REG_CONFIG1,
+			data->config1);
+		mutex_unlock(&data->update_lock);
+	}
+	return count;
+}
+
+#define temp_crit_enable(offset)				\
+static DEVICE_ATTR(temp##offset##_crit_enable, S_IRUGO | S_IWUSR, \
+	show_temp_crit_enable, set_temp_crit_enable);
+
+temp_crit_enable(1);
+temp_crit_enable(2);
+temp_crit_enable(3);
+
+static ssize_t show_temp_crit(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr]));
+}
+static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_crit[nr] = TEMP_TO_REG(val);
+	adm1026_write_value(client, ADM1026_REG_TEMP_THERM[nr],
+		data->temp_crit[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define temp_crit_reg(offset)						\
+static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR,	\
+		show_temp_crit, set_temp_crit, offset - 1);
+
+temp_crit_reg(1);
+temp_crit_reg(2);
+temp_crit_reg(3);
+
+static ssize_t show_analog_out_reg(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%d\n", DAC_FROM_REG(data->analog_out));
+}
+static ssize_t set_analog_out_reg(struct device *dev, struct device_attribute *attr, const char *buf,
+		size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->analog_out = DAC_TO_REG(val);
+	adm1026_write_value(client, ADM1026_REG_DAC, data->analog_out);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(analog_out, S_IRUGO | S_IWUSR, show_analog_out_reg,
+	set_analog_out_reg);
+
+static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	int vid = (data->gpio >> 11) & 0x1f;
+
+	dev_dbg(dev, "Setting VID from GPIO11-15.\n");
+	return sprintf(buf, "%d\n", vid_from_reg(vid, data->vrm));
+}
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
+
+static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct adm1026_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%d\n", data->vrm);
+}
+static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf,
+		size_t count)
+{
+	struct adm1026_data *data = dev_get_drvdata(dev);
+
+	data->vrm = simple_strtol(buf, NULL, 10);
+	return count;
+}
+
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
+
+static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%ld\n", data->alarms);
+}
+
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	return sprintf(buf, "%ld\n", (data->alarms >> bitnr) & 1);
+}
+
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in11_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(in12_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(in13_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(in14_alarm, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(in15_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(in16_alarm, S_IRUGO, show_alarm, NULL, 7);
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12);
+static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13);
+static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14);
+static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 16);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 17);
+static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 18);
+static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 19);
+static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 20);
+static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 21);
+static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 22);
+static SENSOR_DEVICE_ATTR(fan8_alarm, S_IRUGO, show_alarm, NULL, 23);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 24);
+static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 25);
+static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 26);
+
+static ssize_t show_alarm_mask(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%ld\n", data->alarm_mask);
+}
+static ssize_t set_alarm_mask(struct device *dev, struct device_attribute *attr, const char *buf,
+		size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+	unsigned long mask;
+
+	mutex_lock(&data->update_lock);
+	data->alarm_mask = val & 0x7fffffff;
+	mask = data->alarm_mask
+		| (data->gpio_mask & 0x10000 ? 0x80000000 : 0);
+	adm1026_write_value(client, ADM1026_REG_MASK1,
+		mask & 0xff);
+	mask >>= 8;
+	adm1026_write_value(client, ADM1026_REG_MASK2,
+		mask & 0xff);
+	mask >>= 8;
+	adm1026_write_value(client, ADM1026_REG_MASK3,
+		mask & 0xff);
+	mask >>= 8;
+	adm1026_write_value(client, ADM1026_REG_MASK4,
+		mask & 0xff);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(alarm_mask, S_IRUGO | S_IWUSR, show_alarm_mask,
+	set_alarm_mask);
+
+
+static ssize_t show_gpio(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%ld\n", data->gpio);
+}
+static ssize_t set_gpio(struct device *dev, struct device_attribute *attr, const char *buf,
+		size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+	long gpio;
+
+	mutex_lock(&data->update_lock);
+	data->gpio = val & 0x1ffff;
+	gpio = data->gpio;
+	adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_0_7, gpio & 0xff);
+	gpio >>= 8;
+	adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_8_15, gpio & 0xff);
+	gpio = ((gpio >> 1) & 0x80) | (data->alarms >> 24 & 0x7f);
+	adm1026_write_value(client, ADM1026_REG_STATUS4, gpio & 0xff);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(gpio, S_IRUGO | S_IWUSR, show_gpio, set_gpio);
+
+
+static ssize_t show_gpio_mask(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%ld\n", data->gpio_mask);
+}
+static ssize_t set_gpio_mask(struct device *dev, struct device_attribute *attr, const char *buf,
+		size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+	long mask;
+
+	mutex_lock(&data->update_lock);
+	data->gpio_mask = val & 0x1ffff;
+	mask = data->gpio_mask;
+	adm1026_write_value(client, ADM1026_REG_GPIO_MASK_0_7, mask & 0xff);
+	mask >>= 8;
+	adm1026_write_value(client, ADM1026_REG_GPIO_MASK_8_15, mask & 0xff);
+	mask = ((mask >> 1) & 0x80) | (data->alarm_mask >> 24 & 0x7f);
+	adm1026_write_value(client, ADM1026_REG_MASK1, mask & 0xff);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(gpio_mask, S_IRUGO | S_IWUSR, show_gpio_mask, set_gpio_mask);
+
+static ssize_t show_pwm_reg(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm1.pwm));
+}
+static ssize_t set_pwm_reg(struct device *dev, struct device_attribute *attr, const char *buf,
+		size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+
+	if (data->pwm1.enable == 1) {
+		int val = simple_strtol(buf, NULL, 10);
+
+		mutex_lock(&data->update_lock);
+		data->pwm1.pwm = PWM_TO_REG(val);
+		adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
+		mutex_unlock(&data->update_lock);
+	}
+	return count;
+}
+static ssize_t show_auto_pwm_min(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%d\n", data->pwm1.auto_pwm_min);
+}
+static ssize_t set_auto_pwm_min(struct device *dev, struct device_attribute *attr, const char *buf,
+		size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->pwm1.auto_pwm_min = SENSORS_LIMIT(val, 0, 255);
+	if (data->pwm1.enable == 2) { /* apply immediately */
+		data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
+			PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));
+		adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm);
+	}
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t show_auto_pwm_max(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "%d\n", ADM1026_PWM_MAX);
+}
+static ssize_t show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct adm1026_data *data = adm1026_update_device(dev);
+	return sprintf(buf, "%d\n", data->pwm1.enable);
+}
+static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr, const char *buf,
+		size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+	int old_enable;
+
+	if ((val >= 0) && (val < 3)) {
+		mutex_lock(&data->update_lock);
+		old_enable = data->pwm1.enable;
+		data->pwm1.enable = val;
+		data->config1 = (data->config1 & ~CFG1_PWM_AFC)
+				| ((val == 2) ? CFG1_PWM_AFC : 0);
+		adm1026_write_value(client, ADM1026_REG_CONFIG1,
+			data->config1);
+		if (val == 2) { /* apply pwm1_auto_pwm_min to pwm1 */
+			data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) |
+				PWM_MIN_TO_REG(data->pwm1.auto_pwm_min));
+			adm1026_write_value(client, ADM1026_REG_PWM,
+				data->pwm1.pwm);
+		} else if (!((old_enable == 1) && (val == 1))) {
+			/* set pwm to safe value */
+			data->pwm1.pwm = 255;
+			adm1026_write_value(client, ADM1026_REG_PWM,
+				data->pwm1.pwm);
+		}
+		mutex_unlock(&data->update_lock);
+	}
+	return count;
+}
+
+/* enable PWM fan control */
+static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
+static DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
+static DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg);
+static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
+	set_pwm_enable);
+static DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
+	set_pwm_enable);
+static DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
+	set_pwm_enable);
+static DEVICE_ATTR(temp1_auto_point1_pwm, S_IRUGO | S_IWUSR,
+	show_auto_pwm_min, set_auto_pwm_min);
+static DEVICE_ATTR(temp2_auto_point1_pwm, S_IRUGO | S_IWUSR,
+	show_auto_pwm_min, set_auto_pwm_min);
+static DEVICE_ATTR(temp3_auto_point1_pwm, S_IRUGO | S_IWUSR,
+	show_auto_pwm_min, set_auto_pwm_min);
+
+static DEVICE_ATTR(temp1_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
+static DEVICE_ATTR(temp2_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
+static DEVICE_ATTR(temp3_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL);
+
+static struct attribute *adm1026_attributes[] = {
+	&sensor_dev_attr_in0_input.dev_attr.attr,
+	&sensor_dev_attr_in0_max.dev_attr.attr,
+	&sensor_dev_attr_in0_min.dev_attr.attr,
+	&sensor_dev_attr_in0_alarm.dev_attr.attr,
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in1_max.dev_attr.attr,
+	&sensor_dev_attr_in1_min.dev_attr.attr,
+	&sensor_dev_attr_in1_alarm.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in2_max.dev_attr.attr,
+	&sensor_dev_attr_in2_min.dev_attr.attr,
+	&sensor_dev_attr_in2_alarm.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in3_max.dev_attr.attr,
+	&sensor_dev_attr_in3_min.dev_attr.attr,
+	&sensor_dev_attr_in3_alarm.dev_attr.attr,
+	&sensor_dev_attr_in4_input.dev_attr.attr,
+	&sensor_dev_attr_in4_max.dev_attr.attr,
+	&sensor_dev_attr_in4_min.dev_attr.attr,
+	&sensor_dev_attr_in4_alarm.dev_attr.attr,
+	&sensor_dev_attr_in5_input.dev_attr.attr,
+	&sensor_dev_attr_in5_max.dev_attr.attr,
+	&sensor_dev_attr_in5_min.dev_attr.attr,
+	&sensor_dev_attr_in5_alarm.dev_attr.attr,
+	&sensor_dev_attr_in6_input.dev_attr.attr,
+	&sensor_dev_attr_in6_max.dev_attr.attr,
+	&sensor_dev_attr_in6_min.dev_attr.attr,
+	&sensor_dev_attr_in6_alarm.dev_attr.attr,
+	&sensor_dev_attr_in7_input.dev_attr.attr,
+	&sensor_dev_attr_in7_max.dev_attr.attr,
+	&sensor_dev_attr_in7_min.dev_attr.attr,
+	&sensor_dev_attr_in7_alarm.dev_attr.attr,
+	&sensor_dev_attr_in10_input.dev_attr.attr,
+	&sensor_dev_attr_in10_max.dev_attr.attr,
+	&sensor_dev_attr_in10_min.dev_attr.attr,
+	&sensor_dev_attr_in10_alarm.dev_attr.attr,
+	&sensor_dev_attr_in11_input.dev_attr.attr,
+	&sensor_dev_attr_in11_max.dev_attr.attr,
+	&sensor_dev_attr_in11_min.dev_attr.attr,
+	&sensor_dev_attr_in11_alarm.dev_attr.attr,
+	&sensor_dev_attr_in12_input.dev_attr.attr,
+	&sensor_dev_attr_in12_max.dev_attr.attr,
+	&sensor_dev_attr_in12_min.dev_attr.attr,
+	&sensor_dev_attr_in12_alarm.dev_attr.attr,
+	&sensor_dev_attr_in13_input.dev_attr.attr,
+	&sensor_dev_attr_in13_max.dev_attr.attr,
+	&sensor_dev_attr_in13_min.dev_attr.attr,
+	&sensor_dev_attr_in13_alarm.dev_attr.attr,
+	&sensor_dev_attr_in14_input.dev_attr.attr,
+	&sensor_dev_attr_in14_max.dev_attr.attr,
+	&sensor_dev_attr_in14_min.dev_attr.attr,
+	&sensor_dev_attr_in14_alarm.dev_attr.attr,
+	&sensor_dev_attr_in15_input.dev_attr.attr,
+	&sensor_dev_attr_in15_max.dev_attr.attr,
+	&sensor_dev_attr_in15_min.dev_attr.attr,
+	&sensor_dev_attr_in15_alarm.dev_attr.attr,
+	&sensor_dev_attr_in16_input.dev_attr.attr,
+	&sensor_dev_attr_in16_max.dev_attr.attr,
+	&sensor_dev_attr_in16_min.dev_attr.attr,
+	&sensor_dev_attr_in16_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_div.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_div.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan3_input.dev_attr.attr,
+	&sensor_dev_attr_fan3_div.dev_attr.attr,
+	&sensor_dev_attr_fan3_min.dev_attr.attr,
+	&sensor_dev_attr_fan3_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan4_input.dev_attr.attr,
+	&sensor_dev_attr_fan4_div.dev_attr.attr,
+	&sensor_dev_attr_fan4_min.dev_attr.attr,
+	&sensor_dev_attr_fan4_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan5_input.dev_attr.attr,
+	&sensor_dev_attr_fan5_div.dev_attr.attr,
+	&sensor_dev_attr_fan5_min.dev_attr.attr,
+	&sensor_dev_attr_fan5_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan6_input.dev_attr.attr,
+	&sensor_dev_attr_fan6_div.dev_attr.attr,
+	&sensor_dev_attr_fan6_min.dev_attr.attr,
+	&sensor_dev_attr_fan6_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan7_input.dev_attr.attr,
+	&sensor_dev_attr_fan7_div.dev_attr.attr,
+	&sensor_dev_attr_fan7_min.dev_attr.attr,
+	&sensor_dev_attr_fan7_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan8_input.dev_attr.attr,
+	&sensor_dev_attr_fan8_div.dev_attr.attr,
+	&sensor_dev_attr_fan8_min.dev_attr.attr,
+	&sensor_dev_attr_fan8_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_min.dev_attr.attr,
+	&sensor_dev_attr_temp2_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_offset.dev_attr.attr,
+	&sensor_dev_attr_temp2_offset.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_point1_temp_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_point1_temp_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_temp1_crit.dev_attr.attr,
+	&sensor_dev_attr_temp2_crit.dev_attr.attr,
+	&dev_attr_temp1_crit_enable.attr,
+	&dev_attr_temp2_crit_enable.attr,
+	&dev_attr_cpu0_vid.attr,
+	&dev_attr_vrm.attr,
+	&dev_attr_alarms.attr,
+	&dev_attr_alarm_mask.attr,
+	&dev_attr_gpio.attr,
+	&dev_attr_gpio_mask.attr,
+	&dev_attr_pwm1.attr,
+	&dev_attr_pwm2.attr,
+	&dev_attr_pwm3.attr,
+	&dev_attr_pwm1_enable.attr,
+	&dev_attr_pwm2_enable.attr,
+	&dev_attr_pwm3_enable.attr,
+	&dev_attr_temp1_auto_point1_pwm.attr,
+	&dev_attr_temp2_auto_point1_pwm.attr,
+	&dev_attr_temp1_auto_point2_pwm.attr,
+	&dev_attr_temp2_auto_point2_pwm.attr,
+	&dev_attr_analog_out.attr,
+	NULL
+};
+
+static const struct attribute_group adm1026_group = {
+	.attrs = adm1026_attributes,
+};
+
+static struct attribute *adm1026_attributes_temp3[] = {
+	&sensor_dev_attr_temp3_input.dev_attr.attr,
+	&sensor_dev_attr_temp3_max.dev_attr.attr,
+	&sensor_dev_attr_temp3_min.dev_attr.attr,
+	&sensor_dev_attr_temp3_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp3_offset.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_point1_temp_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_temp3_crit.dev_attr.attr,
+	&dev_attr_temp3_crit_enable.attr,
+	&dev_attr_temp3_auto_point1_pwm.attr,
+	&dev_attr_temp3_auto_point2_pwm.attr,
+	NULL
+};
+
+static const struct attribute_group adm1026_group_temp3 = {
+	.attrs = adm1026_attributes_temp3,
+};
+
+static struct attribute *adm1026_attributes_in8_9[] = {
+	&sensor_dev_attr_in8_input.dev_attr.attr,
+	&sensor_dev_attr_in8_max.dev_attr.attr,
+	&sensor_dev_attr_in8_min.dev_attr.attr,
+	&sensor_dev_attr_in8_alarm.dev_attr.attr,
+	&sensor_dev_attr_in9_input.dev_attr.attr,
+	&sensor_dev_attr_in9_max.dev_attr.attr,
+	&sensor_dev_attr_in9_min.dev_attr.attr,
+	&sensor_dev_attr_in9_alarm.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group adm1026_group_in8_9 = {
+	.attrs = adm1026_attributes_in8_9,
+};
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int adm1026_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+	int address = client->addr;
+	int company, verstep;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
+		/* We need to be able to do byte I/O */
+		return -ENODEV;
+	};
+
+	/* Now, we do the remaining detection. */
+
+	company = adm1026_read_value(client, ADM1026_REG_COMPANY);
+	verstep = adm1026_read_value(client, ADM1026_REG_VERSTEP);
+
+	dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with"
+		" COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
+		i2c_adapter_id(client->adapter), client->addr,
+		company, verstep);
+
+	/* If auto-detecting, Determine the chip type. */
+	if (kind <= 0) {
+		dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x "
+			"...\n", i2c_adapter_id(adapter), address);
+		if (company == ADM1026_COMPANY_ANALOG_DEV
+		    && verstep == ADM1026_VERSTEP_ADM1026) {
+			kind = adm1026;
+		} else if (company == ADM1026_COMPANY_ANALOG_DEV
+			&& (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {
+			dev_err(&adapter->dev, "Unrecognized stepping "
+				"0x%02x. Defaulting to ADM1026.\n", verstep);
+			kind = adm1026;
+		} else if ((verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) {
+			dev_err(&adapter->dev, "Found version/stepping "
+				"0x%02x. Assuming generic ADM1026.\n",
+				verstep);
+			kind = any_chip;
+		} else {
+			dev_dbg(&adapter->dev, "Autodetection failed\n");
+			/* Not an ADM1026 ... */
+			if (kind == 0) { /* User used force=x,y */
+				dev_err(&adapter->dev, "Generic ADM1026 not "
+					"found at %d,0x%02x.  Try "
+					"force_adm1026.\n",
+					i2c_adapter_id(adapter), address);
+			}
+			return -ENODEV;
+		}
+	}
+	strlcpy(info->type, "adm1026", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int adm1026_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct adm1026_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct adm1026_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
+
+	/* Set the VRM version */
+	data->vrm = vid_which_vrm();
+
+	/* Initialize the ADM1026 chip */
+	adm1026_init_client(client);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&client->dev.kobj, &adm1026_group)))
+		goto exitfree;
+	if (data->config1 & CFG1_AIN8_9)
+		err = sysfs_create_group(&client->dev.kobj,
+					 &adm1026_group_in8_9);
+	else
+		err = sysfs_create_group(&client->dev.kobj,
+					 &adm1026_group_temp3);
+	if (err)
+		goto exitremove;
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exitremove;
+	}
+
+	return 0;
+
+	/* Error out and cleanup code */
+exitremove:
+	sysfs_remove_group(&client->dev.kobj, &adm1026_group);
+	if (data->config1 & CFG1_AIN8_9)
+		sysfs_remove_group(&client->dev.kobj, &adm1026_group_in8_9);
+	else
+		sysfs_remove_group(&client->dev.kobj, &adm1026_group_temp3);
+exitfree:
+	kfree(data);
+exit:
+	return err;
+}
+
+static int adm1026_remove(struct i2c_client *client)
+{
+	struct adm1026_data *data = i2c_get_clientdata(client);
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &adm1026_group);
+	if (data->config1 & CFG1_AIN8_9)
+		sysfs_remove_group(&client->dev.kobj, &adm1026_group_in8_9);
+	else
+		sysfs_remove_group(&client->dev.kobj, &adm1026_group_temp3);
+	kfree(data);
+	return 0;
+}
+
+static int __init sm_adm1026_init(void)
+{
+	return i2c_add_driver(&adm1026_driver);
+}
+
+static void __exit sm_adm1026_exit(void)
+{
+	i2c_del_driver(&adm1026_driver);
+}
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, "
+	      "Justin Thiessen <jthiessen@penguincomputing.com>");
+MODULE_DESCRIPTION("ADM1026 driver");
+
+module_init(sm_adm1026_init);
+module_exit(sm_adm1026_exit);
diff --git a/drivers/hwmon/adm1029.c b/drivers/hwmon/adm1029.c
new file mode 100644
index 0000000..3671815
--- /dev/null
+++ b/drivers/hwmon/adm1029.c
@@ -0,0 +1,498 @@
+/*
+ * adm1029.c - Part of lm_sensors, Linux kernel modules for hardware monitoring
+ *
+ * Copyright (C) 2006 Corentin LABBE <corentin.labbe@geomatys.fr>
+ *
+ * Based on LM83 Driver by Jean Delvare <khali@linux-fr.org>
+ *
+ * Give only processor, motherboard temperatures and fan tachs
+ * Very rare chip please let me know if you use it
+ *
+ * http://www.analog.com/UploadedFiles/Data_Sheets/ADM1029.pdf
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation version 2 of the License
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+/*
+ * Addresses to scan
+ */
+
+static const unsigned short normal_i2c[] = { 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d,
+						0x2e, 0x2f, I2C_CLIENT_END
+};
+
+/*
+ * Insmod parameters
+ */
+
+I2C_CLIENT_INSMOD_1(adm1029);
+
+/*
+ * The ADM1029 registers
+ * Manufacturer ID is 0x41 for Analog Devices
+ */
+
+#define ADM1029_REG_MAN_ID			0x0D
+#define ADM1029_REG_CHIP_ID			0x0E
+#define ADM1029_REG_CONFIG			0x01
+#define ADM1029_REG_NB_FAN_SUPPORT		0x02
+
+#define ADM1029_REG_TEMP_DEVICES_INSTALLED	0x06
+
+#define ADM1029_REG_LOCAL_TEMP			0xA0
+#define ADM1029_REG_REMOTE1_TEMP		0xA1
+#define ADM1029_REG_REMOTE2_TEMP		0xA2
+
+#define ADM1029_REG_LOCAL_TEMP_HIGH		0x90
+#define ADM1029_REG_REMOTE1_TEMP_HIGH		0x91
+#define ADM1029_REG_REMOTE2_TEMP_HIGH		0x92
+
+#define ADM1029_REG_LOCAL_TEMP_LOW		0x98
+#define ADM1029_REG_REMOTE1_TEMP_LOW		0x99
+#define ADM1029_REG_REMOTE2_TEMP_LOW		0x9A
+
+#define ADM1029_REG_FAN1			0x70
+#define ADM1029_REG_FAN2			0x71
+
+#define ADM1029_REG_FAN1_MIN			0x78
+#define ADM1029_REG_FAN2_MIN			0x79
+
+#define ADM1029_REG_FAN1_CONFIG			0x68
+#define ADM1029_REG_FAN2_CONFIG			0x69
+
+#define TEMP_FROM_REG(val)	((val) * 1000)
+
+#define DIV_FROM_REG(val)	( 1 << (((val) >> 6) - 1))
+
+/* Registers to be checked by adm1029_update_device() */
+static const u8 ADM1029_REG_TEMP[] = {
+	ADM1029_REG_LOCAL_TEMP,
+	ADM1029_REG_REMOTE1_TEMP,
+	ADM1029_REG_REMOTE2_TEMP,
+	ADM1029_REG_LOCAL_TEMP_HIGH,
+	ADM1029_REG_REMOTE1_TEMP_HIGH,
+	ADM1029_REG_REMOTE2_TEMP_HIGH,
+	ADM1029_REG_LOCAL_TEMP_LOW,
+	ADM1029_REG_REMOTE1_TEMP_LOW,
+	ADM1029_REG_REMOTE2_TEMP_LOW,
+};
+
+static const u8 ADM1029_REG_FAN[] = {
+	ADM1029_REG_FAN1,
+	ADM1029_REG_FAN2,
+	ADM1029_REG_FAN1_MIN,
+	ADM1029_REG_FAN2_MIN,
+};
+
+static const u8 ADM1029_REG_FAN_DIV[] = {
+	ADM1029_REG_FAN1_CONFIG,
+	ADM1029_REG_FAN2_CONFIG,
+};
+
+/*
+ * Functions declaration
+ */
+
+static int adm1029_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int adm1029_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
+static int adm1029_remove(struct i2c_client *client);
+static struct adm1029_data *adm1029_update_device(struct device *dev);
+static int adm1029_init_client(struct i2c_client *client);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static const struct i2c_device_id adm1029_id[] = {
+	{ "adm1029", adm1029 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adm1029_id);
+
+static struct i2c_driver adm1029_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name = "adm1029",
+	},
+	.probe		= adm1029_probe,
+	.remove		= adm1029_remove,
+	.id_table	= adm1029_id,
+	.detect		= adm1029_detect,
+	.address_data	= &addr_data,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct adm1029_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	char valid;		/* zero until following fields are valid */
+	unsigned long last_updated;	/* in jiffies */
+
+	/* registers values, signed for temperature, unsigned for other stuff */
+	s8 temp[ARRAY_SIZE(ADM1029_REG_TEMP)];
+	u8 fan[ARRAY_SIZE(ADM1029_REG_FAN)];
+	u8 fan_div[ARRAY_SIZE(ADM1029_REG_FAN_DIV)];
+};
+
+/*
+ * Sysfs stuff
+ */
+
+static ssize_t
+show_temp(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adm1029_data *data = adm1029_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
+}
+
+static ssize_t
+show_fan(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adm1029_data *data = adm1029_update_device(dev);
+	u16 val;
+	if (data->fan[attr->index] == 0
+	    || (data->fan_div[attr->index] & 0xC0) == 0
+	    || data->fan[attr->index] == 255) {
+		return sprintf(buf, "0\n");
+	}
+
+	val = 1880 * 120 / DIV_FROM_REG(data->fan_div[attr->index])
+	    / data->fan[attr->index];
+	return sprintf(buf, "%d\n", val);
+}
+
+static ssize_t
+show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adm1029_data *data = adm1029_update_device(dev);
+	if ((data->fan_div[attr->index] & 0xC0) == 0)
+		return sprintf(buf, "0\n");
+	return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[attr->index]));
+}
+
+static ssize_t set_fan_div(struct device *dev,
+	    struct device_attribute *devattr, const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1029_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	long val = simple_strtol(buf, NULL, 10);
+	u8 reg;
+
+	mutex_lock(&data->update_lock);
+
+	/*Read actual config */
+	reg = i2c_smbus_read_byte_data(client,
+				       ADM1029_REG_FAN_DIV[attr->index]);
+
+	switch (val) {
+	case 1:
+		val = 1;
+		break;
+	case 2:
+		val = 2;
+		break;
+	case 4:
+		val = 3;
+		break;
+	default:
+		mutex_unlock(&data->update_lock);
+		dev_err(&client->dev, "fan_div value %ld not "
+			"supported. Choose one of 1, 2 or 4!\n", val);
+		return -EINVAL;
+	}
+	/* Update the value */
+	reg = (reg & 0x3F) | (val << 6);
+
+	/* Write value */
+	i2c_smbus_write_byte_data(client,
+				  ADM1029_REG_FAN_DIV[attr->index], reg);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/*
+Access rights on sysfs, S_IRUGO stand for Is Readable by User, Group and Others
+			S_IWUSR stand for Is Writable by User
+*/
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
+
+static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_temp, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO, show_temp, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp3_max, S_IRUGO, show_temp, NULL, 5);
+
+static SENSOR_DEVICE_ATTR(temp1_min, S_IRUGO, show_temp, NULL, 6);
+static SENSOR_DEVICE_ATTR(temp2_min, S_IRUGO, show_temp, NULL, 7);
+static SENSOR_DEVICE_ATTR(temp3_min, S_IRUGO, show_temp, NULL, 8);
+
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
+
+static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO, show_fan, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO, show_fan, NULL, 3);
+
+static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR,
+			  show_fan_div, set_fan_div, 0);
+static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR,
+			  show_fan_div, set_fan_div, 1);
+
+static struct attribute *adm1029_attributes[] = {
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_min.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp3_input.dev_attr.attr,
+	&sensor_dev_attr_temp3_min.dev_attr.attr,
+	&sensor_dev_attr_temp3_max.dev_attr.attr,
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_div.dev_attr.attr,
+	&sensor_dev_attr_fan2_div.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group adm1029_group = {
+	.attrs = adm1029_attributes,
+};
+
+/*
+ * Real code
+ */
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int adm1029_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	/* Now we do the detection and identification. A negative kind
+	 * means that the driver was loaded with no force parameter
+	 * (default), so we must both detect and identify the chip
+	 * (actually there is only one possible kind of chip for now, adm1029).
+	 * A zero kind means that the driver was loaded with the force
+	 * parameter, the detection step shall be skipped. A positive kind
+	 * means that the driver was loaded with the force parameter and a
+	 * given kind of chip is requested, so both the detection and the
+	 * identification steps are skipped. */
+
+	/* Default to an adm1029 if forced */
+	if (kind == 0)
+		kind = adm1029;
+
+	/* ADM1029 doesn't have CHIP ID, check just MAN ID
+	 * For better detection we check also ADM1029_TEMP_DEVICES_INSTALLED,
+	 * ADM1029_REG_NB_FAN_SUPPORT and compare it with possible values
+	 * documented
+	 */
+
+	if (kind <= 0) {	/* identification */
+		u8 man_id, chip_id, temp_devices_installed, nb_fan_support;
+
+		man_id = i2c_smbus_read_byte_data(client, ADM1029_REG_MAN_ID);
+		chip_id = i2c_smbus_read_byte_data(client, ADM1029_REG_CHIP_ID);
+		temp_devices_installed = i2c_smbus_read_byte_data(client,
+					ADM1029_REG_TEMP_DEVICES_INSTALLED);
+		nb_fan_support = i2c_smbus_read_byte_data(client,
+						ADM1029_REG_NB_FAN_SUPPORT);
+		/* 0x41 is Analog Devices */
+		if (man_id == 0x41 && (temp_devices_installed & 0xf9) == 0x01
+		    && nb_fan_support == 0x03) {
+			if ((chip_id & 0xF0) == 0x00) {
+				kind = adm1029;
+			} else {
+				/* There are no "official" CHIP ID, so actually
+				 * we use Major/Minor revision for that */
+				printk(KERN_INFO
+				       "adm1029: Unknown major revision %x, "
+				       "please let us know\n", chip_id);
+			}
+		}
+
+		if (kind <= 0) {	/* identification failed */
+			pr_debug("adm1029: Unsupported chip (man_id=0x%02X, "
+				 "chip_id=0x%02X)\n", man_id, chip_id);
+			return -ENODEV;
+		}
+	}
+	strlcpy(info->type, "adm1029", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int adm1029_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct adm1029_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct adm1029_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
+
+	/*
+	 * Initialize the ADM1029 chip
+	 * Check config register
+	 */
+	if (adm1029_init_client(client) == 0) {
+		err = -ENODEV;
+		goto exit_free;
+	}
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&client->dev.kobj, &adm1029_group)))
+		goto exit_free;
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove_files;
+	}
+
+	return 0;
+
+ exit_remove_files:
+	sysfs_remove_group(&client->dev.kobj, &adm1029_group);
+ exit_free:
+	kfree(data);
+ exit:
+	return err;
+}
+
+static int adm1029_init_client(struct i2c_client *client)
+{
+	u8 config;
+	config = i2c_smbus_read_byte_data(client, ADM1029_REG_CONFIG);
+	if ((config & 0x10) == 0) {
+		i2c_smbus_write_byte_data(client, ADM1029_REG_CONFIG,
+					  config | 0x10);
+	}
+	/* recheck config */
+	config = i2c_smbus_read_byte_data(client, ADM1029_REG_CONFIG);
+	if ((config & 0x10) == 0) {
+		dev_err(&client->dev, "Initialization failed!\n");
+		return 0;
+	}
+	return 1;
+}
+
+static int adm1029_remove(struct i2c_client *client)
+{
+	struct adm1029_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &adm1029_group);
+
+	kfree(data);
+	return 0;
+}
+
+/*
+function that update the status of the chips (temperature for exemple)
+*/
+static struct adm1029_data *adm1029_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1029_data *data = i2c_get_clientdata(client);
+
+	mutex_lock(&data->update_lock);
+	/*
+	 * Use the "cache" Luke, don't recheck values
+	 * if there are already checked not a long time later
+	 */
+	if (time_after(jiffies, data->last_updated + HZ * 2)
+	 || !data->valid) {
+		int nr;
+
+		dev_dbg(&client->dev, "Updating adm1029 data\n");
+
+		for (nr = 0; nr < ARRAY_SIZE(ADM1029_REG_TEMP); nr++) {
+			data->temp[nr] =
+			    i2c_smbus_read_byte_data(client,
+						     ADM1029_REG_TEMP[nr]);
+		}
+		for (nr = 0; nr < ARRAY_SIZE(ADM1029_REG_FAN); nr++) {
+			data->fan[nr] =
+			    i2c_smbus_read_byte_data(client,
+						     ADM1029_REG_FAN[nr]);
+		}
+		for (nr = 0; nr < ARRAY_SIZE(ADM1029_REG_FAN_DIV); nr++) {
+			data->fan_div[nr] =
+			    i2c_smbus_read_byte_data(client,
+						     ADM1029_REG_FAN_DIV[nr]);
+		}
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+/*
+	Common module stuff
+*/
+static int __init sensors_adm1029_init(void)
+{
+
+	return i2c_add_driver(&adm1029_driver);
+}
+
+static void __exit sensors_adm1029_exit(void)
+{
+
+	i2c_del_driver(&adm1029_driver);
+}
+
+MODULE_AUTHOR("Corentin LABBE <corentin.labbe@geomatys.fr>");
+MODULE_DESCRIPTION("adm1029 driver");
+MODULE_LICENSE("GPL v2");
+
+module_init(sensors_adm1029_init);
+module_exit(sensors_adm1029_exit);
diff --git a/drivers/hwmon/adm1031.c b/drivers/hwmon/adm1031.c
new file mode 100644
index 0000000..7894418
--- /dev/null
+++ b/drivers/hwmon/adm1031.c
@@ -0,0 +1,1000 @@
+/*
+  adm1031.c - Part of lm_sensors, Linux kernel modules for hardware
+  monitoring
+  Based on lm75.c and lm85.c
+  Supports adm1030 / adm1031
+  Copyright (C) 2004 Alexandre d'Alton <alex@alexdalton.org>
+  Reworked by Jean Delvare <khali@linux-fr.org>
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+/* Following macros takes channel parameter starting from 0 to 2 */
+#define ADM1031_REG_FAN_SPEED(nr)	(0x08 + (nr))
+#define ADM1031_REG_FAN_DIV(nr)		(0x20 + (nr))
+#define ADM1031_REG_PWM			(0x22)
+#define ADM1031_REG_FAN_MIN(nr)		(0x10 + (nr))
+
+#define ADM1031_REG_TEMP_MAX(nr)	(0x14 + 4 * (nr))
+#define ADM1031_REG_TEMP_MIN(nr)	(0x15 + 4 * (nr))
+#define ADM1031_REG_TEMP_CRIT(nr)	(0x16 + 4 * (nr))
+
+#define ADM1031_REG_TEMP(nr)		(0x0a + (nr))
+#define ADM1031_REG_AUTO_TEMP(nr)	(0x24 + (nr))
+
+#define ADM1031_REG_STATUS(nr)		(0x2 + (nr))
+
+#define ADM1031_REG_CONF1		0x00
+#define ADM1031_REG_CONF2		0x01
+#define ADM1031_REG_EXT_TEMP		0x06
+
+#define ADM1031_CONF1_MONITOR_ENABLE	0x01	/* Monitoring enable */
+#define ADM1031_CONF1_PWM_INVERT	0x08	/* PWM Invert */
+#define ADM1031_CONF1_AUTO_MODE		0x80	/* Auto FAN */
+
+#define ADM1031_CONF2_PWM1_ENABLE	0x01
+#define ADM1031_CONF2_PWM2_ENABLE	0x02
+#define ADM1031_CONF2_TACH1_ENABLE	0x04
+#define ADM1031_CONF2_TACH2_ENABLE	0x08
+#define ADM1031_CONF2_TEMP_ENABLE(chan)	(0x10 << (chan))
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_2(adm1030, adm1031);
+
+typedef u8 auto_chan_table_t[8][2];
+
+/* Each client has this additional data */
+struct adm1031_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	int chip_type;
+	char valid;		/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+	/* The chan_select_table contains the possible configurations for
+	 * auto fan control.
+	 */
+	const auto_chan_table_t *chan_select_table;
+	u16 alarm;
+	u8 conf1;
+	u8 conf2;
+	u8 fan[2];
+	u8 fan_div[2];
+	u8 fan_min[2];
+	u8 pwm[2];
+	u8 old_pwm[2];
+	s8 temp[3];
+	u8 ext_temp[3];
+	u8 auto_temp[3];
+	u8 auto_temp_min[3];
+	u8 auto_temp_off[3];
+	u8 auto_temp_max[3];
+	s8 temp_min[3];
+	s8 temp_max[3];
+	s8 temp_crit[3];
+};
+
+static int adm1031_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int adm1031_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
+static void adm1031_init_client(struct i2c_client *client);
+static int adm1031_remove(struct i2c_client *client);
+static struct adm1031_data *adm1031_update_device(struct device *dev);
+
+static const struct i2c_device_id adm1031_id[] = {
+	{ "adm1030", adm1030 },
+	{ "adm1031", adm1031 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adm1031_id);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver adm1031_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name = "adm1031",
+	},
+	.probe		= adm1031_probe,
+	.remove		= adm1031_remove,
+	.id_table	= adm1031_id,
+	.detect		= adm1031_detect,
+	.address_data	= &addr_data,
+};
+
+static inline u8 adm1031_read_value(struct i2c_client *client, u8 reg)
+{
+	return i2c_smbus_read_byte_data(client, reg);
+}
+
+static inline int
+adm1031_write_value(struct i2c_client *client, u8 reg, unsigned int value)
+{
+	return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+
+#define TEMP_TO_REG(val)		(((val) < 0 ? ((val - 500) / 1000) : \
+					((val + 500) / 1000)))
+
+#define TEMP_FROM_REG(val)		((val) * 1000)
+
+#define TEMP_FROM_REG_EXT(val, ext)	(TEMP_FROM_REG(val) + (ext) * 125)
+
+#define FAN_FROM_REG(reg, div)		((reg) ? (11250 * 60) / ((reg) * (div)) : 0)
+
+static int FAN_TO_REG(int reg, int div)
+{
+	int tmp;
+	tmp = FAN_FROM_REG(SENSORS_LIMIT(reg, 0, 65535), div);
+	return tmp > 255 ? 255 : tmp;
+}
+
+#define FAN_DIV_FROM_REG(reg)		(1<<(((reg)&0xc0)>>6))
+
+#define PWM_TO_REG(val)			(SENSORS_LIMIT((val), 0, 255) >> 4)
+#define PWM_FROM_REG(val)		((val) << 4)
+
+#define FAN_CHAN_FROM_REG(reg)		(((reg) >> 5) & 7)
+#define FAN_CHAN_TO_REG(val, reg)	\
+	(((reg) & 0x1F) | (((val) << 5) & 0xe0))
+
+#define AUTO_TEMP_MIN_TO_REG(val, reg)	\
+	((((val)/500) & 0xf8)|((reg) & 0x7))
+#define AUTO_TEMP_RANGE_FROM_REG(reg)	(5000 * (1<< ((reg)&0x7)))
+#define AUTO_TEMP_MIN_FROM_REG(reg)	(1000 * ((((reg) >> 3) & 0x1f) << 2))
+
+#define AUTO_TEMP_MIN_FROM_REG_DEG(reg)	((((reg) >> 3) & 0x1f) << 2)
+
+#define AUTO_TEMP_OFF_FROM_REG(reg)		\
+	(AUTO_TEMP_MIN_FROM_REG(reg) - 5000)
+
+#define AUTO_TEMP_MAX_FROM_REG(reg)		\
+	(AUTO_TEMP_RANGE_FROM_REG(reg) +	\
+	AUTO_TEMP_MIN_FROM_REG(reg))
+
+static int AUTO_TEMP_MAX_TO_REG(int val, int reg, int pwm)
+{
+	int ret;
+	int range = val - AUTO_TEMP_MIN_FROM_REG(reg);
+
+	range = ((val - AUTO_TEMP_MIN_FROM_REG(reg))*10)/(16 - pwm);
+	ret = ((reg & 0xf8) |
+	       (range < 10000 ? 0 :
+		range < 20000 ? 1 :
+		range < 40000 ? 2 : range < 80000 ? 3 : 4));
+	return ret;
+}
+
+/* FAN auto control */
+#define GET_FAN_AUTO_BITFIELD(data, idx)	\
+	(*(data)->chan_select_table)[FAN_CHAN_FROM_REG((data)->conf1)][idx%2]
+
+/* The tables below contains the possible values for the auto fan
+ * control bitfields. the index in the table is the register value.
+ * MSb is the auto fan control enable bit, so the four first entries
+ * in the table disables auto fan control when both bitfields are zero.
+ */
+static const auto_chan_table_t auto_channel_select_table_adm1031 = {
+	{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
+	{ 2 /* 0b010 */ , 4 /* 0b100 */ },
+	{ 2 /* 0b010 */ , 2 /* 0b010 */ },
+	{ 4 /* 0b100 */ , 4 /* 0b100 */ },
+	{ 7 /* 0b111 */ , 7 /* 0b111 */ },
+};
+
+static const auto_chan_table_t auto_channel_select_table_adm1030 = {
+	{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
+	{ 2 /* 0b10 */		, 0 },
+	{ 0xff /* invalid */	, 0 },
+	{ 0xff /* invalid */	, 0 },
+	{ 3 /* 0b11 */		, 0 },
+};
+
+/* That function checks if a bitfield is valid and returns the other bitfield
+ * nearest match if no exact match where found.
+ */
+static int
+get_fan_auto_nearest(struct adm1031_data *data,
+		     int chan, u8 val, u8 reg, u8 * new_reg)
+{
+	int i;
+	int first_match = -1, exact_match = -1;
+	u8 other_reg_val =
+	    (*data->chan_select_table)[FAN_CHAN_FROM_REG(reg)][chan ? 0 : 1];
+
+	if (val == 0) {
+		*new_reg = 0;
+		return 0;
+	}
+
+	for (i = 0; i < 8; i++) {
+		if ((val == (*data->chan_select_table)[i][chan]) &&
+		    ((*data->chan_select_table)[i][chan ? 0 : 1] ==
+		     other_reg_val)) {
+			/* We found an exact match */
+			exact_match = i;
+			break;
+		} else if (val == (*data->chan_select_table)[i][chan] &&
+			   first_match == -1) {
+			/* Save the first match in case of an exact match has
+			 * not been found
+			 */
+			first_match = i;
+		}
+	}
+
+	if (exact_match >= 0) {
+		*new_reg = exact_match;
+	} else if (first_match >= 0) {
+		*new_reg = first_match;
+	} else {
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static ssize_t show_fan_auto_channel(struct device *dev,
+				     struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct adm1031_data *data = adm1031_update_device(dev);
+	return sprintf(buf, "%d\n", GET_FAN_AUTO_BITFIELD(data, nr));
+}
+
+static ssize_t
+set_fan_auto_channel(struct device *dev, struct device_attribute *attr,
+		     const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1031_data *data = i2c_get_clientdata(client);
+	int nr = to_sensor_dev_attr(attr)->index;
+	int val = simple_strtol(buf, NULL, 10);
+	u8 reg;
+	int ret;
+	u8 old_fan_mode;
+
+	old_fan_mode = data->conf1;
+
+	mutex_lock(&data->update_lock);
+
+	if ((ret = get_fan_auto_nearest(data, nr, val, data->conf1, &reg))) {
+		mutex_unlock(&data->update_lock);
+		return ret;
+	}
+	data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1);
+	if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) ^
+	    (old_fan_mode & ADM1031_CONF1_AUTO_MODE)) {
+		if (data->conf1 & ADM1031_CONF1_AUTO_MODE){
+			/* Switch to Auto Fan Mode
+			 * Save PWM registers
+			 * Set PWM registers to 33% Both */
+			data->old_pwm[0] = data->pwm[0];
+			data->old_pwm[1] = data->pwm[1];
+			adm1031_write_value(client, ADM1031_REG_PWM, 0x55);
+		} else {
+			/* Switch to Manual Mode */
+			data->pwm[0] = data->old_pwm[0];
+			data->pwm[1] = data->old_pwm[1];
+			/* Restore PWM registers */
+			adm1031_write_value(client, ADM1031_REG_PWM,
+					    data->pwm[0] | (data->pwm[1] << 4));
+		}
+	}
+	data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1);
+	adm1031_write_value(client, ADM1031_REG_CONF1, data->conf1);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(auto_fan1_channel, S_IRUGO | S_IWUSR,
+		show_fan_auto_channel, set_fan_auto_channel, 0);
+static SENSOR_DEVICE_ATTR(auto_fan2_channel, S_IRUGO | S_IWUSR,
+		show_fan_auto_channel, set_fan_auto_channel, 1);
+
+/* Auto Temps */
+static ssize_t show_auto_temp_off(struct device *dev,
+				  struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct adm1031_data *data = adm1031_update_device(dev);
+	return sprintf(buf, "%d\n",
+		       AUTO_TEMP_OFF_FROM_REG(data->auto_temp[nr]));
+}
+static ssize_t show_auto_temp_min(struct device *dev,
+				  struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct adm1031_data *data = adm1031_update_device(dev);
+	return sprintf(buf, "%d\n",
+		       AUTO_TEMP_MIN_FROM_REG(data->auto_temp[nr]));
+}
+static ssize_t
+set_auto_temp_min(struct device *dev, struct device_attribute *attr,
+		  const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1031_data *data = i2c_get_clientdata(client);
+	int nr = to_sensor_dev_attr(attr)->index;
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->auto_temp[nr] = AUTO_TEMP_MIN_TO_REG(val, data->auto_temp[nr]);
+	adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr),
+			    data->auto_temp[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t show_auto_temp_max(struct device *dev,
+				  struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct adm1031_data *data = adm1031_update_device(dev);
+	return sprintf(buf, "%d\n",
+		       AUTO_TEMP_MAX_FROM_REG(data->auto_temp[nr]));
+}
+static ssize_t
+set_auto_temp_max(struct device *dev, struct device_attribute *attr,
+		  const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1031_data *data = i2c_get_clientdata(client);
+	int nr = to_sensor_dev_attr(attr)->index;
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_max[nr] = AUTO_TEMP_MAX_TO_REG(val, data->auto_temp[nr], data->pwm[nr]);
+	adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr),
+			    data->temp_max[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define auto_temp_reg(offset)						\
+static SENSOR_DEVICE_ATTR(auto_temp##offset##_off, S_IRUGO,		\
+		show_auto_temp_off, NULL, offset - 1);			\
+static SENSOR_DEVICE_ATTR(auto_temp##offset##_min, S_IRUGO | S_IWUSR,	\
+		show_auto_temp_min, set_auto_temp_min, offset - 1);	\
+static SENSOR_DEVICE_ATTR(auto_temp##offset##_max, S_IRUGO | S_IWUSR,	\
+		show_auto_temp_max, set_auto_temp_max, offset - 1)
+
+auto_temp_reg(1);
+auto_temp_reg(2);
+auto_temp_reg(3);
+
+/* pwm */
+static ssize_t show_pwm(struct device *dev,
+			struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct adm1031_data *data = adm1031_update_device(dev);
+	return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr]));
+}
+static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
+		       const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1031_data *data = i2c_get_clientdata(client);
+	int nr = to_sensor_dev_attr(attr)->index;
+	int val = simple_strtol(buf, NULL, 10);
+	int reg;
+
+	mutex_lock(&data->update_lock);
+	if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) &&
+	    (((val>>4) & 0xf) != 5)) {
+		/* In automatic mode, the only PWM accepted is 33% */
+		mutex_unlock(&data->update_lock);
+		return -EINVAL;
+	}
+	data->pwm[nr] = PWM_TO_REG(val);
+	reg = adm1031_read_value(client, ADM1031_REG_PWM);
+	adm1031_write_value(client, ADM1031_REG_PWM,
+			    nr ? ((data->pwm[nr] << 4) & 0xf0) | (reg & 0xf)
+			    : (data->pwm[nr] & 0xf) | (reg & 0xf0));
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 0);
+static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 1);
+static SENSOR_DEVICE_ATTR(auto_fan1_min_pwm, S_IRUGO | S_IWUSR,
+		show_pwm, set_pwm, 0);
+static SENSOR_DEVICE_ATTR(auto_fan2_min_pwm, S_IRUGO | S_IWUSR,
+		show_pwm, set_pwm, 1);
+
+/* Fans */
+
+/*
+ * That function checks the cases where the fan reading is not
+ * relevant.  It is used to provide 0 as fan reading when the fan is
+ * not supposed to run
+ */
+static int trust_fan_readings(struct adm1031_data *data, int chan)
+{
+	int res = 0;
+
+	if (data->conf1 & ADM1031_CONF1_AUTO_MODE) {
+		switch (data->conf1 & 0x60) {
+		case 0x00:	/* remote temp1 controls fan1 remote temp2 controls fan2 */
+			res = data->temp[chan+1] >=
+			      AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[chan+1]);
+			break;
+		case 0x20:	/* remote temp1 controls both fans */
+			res =
+			    data->temp[1] >=
+			    AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[1]);
+			break;
+		case 0x40:	/* remote temp2 controls both fans */
+			res =
+			    data->temp[2] >=
+			    AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[2]);
+			break;
+		case 0x60:	/* max controls both fans */
+			res =
+			    data->temp[0] >=
+			    AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[0])
+			    || data->temp[1] >=
+			    AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[1])
+			    || (data->chip_type == adm1031
+				&& data->temp[2] >=
+				AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[2]));
+			break;
+		}
+	} else {
+		res = data->pwm[chan] > 0;
+	}
+	return res;
+}
+
+
+static ssize_t show_fan(struct device *dev,
+			struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct adm1031_data *data = adm1031_update_device(dev);
+	int value;
+
+	value = trust_fan_readings(data, nr) ? FAN_FROM_REG(data->fan[nr],
+				 FAN_DIV_FROM_REG(data->fan_div[nr])) : 0;
+	return sprintf(buf, "%d\n", value);
+}
+
+static ssize_t show_fan_div(struct device *dev,
+			    struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct adm1031_data *data = adm1031_update_device(dev);
+	return sprintf(buf, "%d\n", FAN_DIV_FROM_REG(data->fan_div[nr]));
+}
+static ssize_t show_fan_min(struct device *dev,
+			    struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct adm1031_data *data = adm1031_update_device(dev);
+	return sprintf(buf, "%d\n",
+		       FAN_FROM_REG(data->fan_min[nr],
+				    FAN_DIV_FROM_REG(data->fan_div[nr])));
+}
+static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
+			   const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1031_data *data = i2c_get_clientdata(client);
+	int nr = to_sensor_dev_attr(attr)->index;
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	if (val) {
+		data->fan_min[nr] =
+			FAN_TO_REG(val, FAN_DIV_FROM_REG(data->fan_div[nr]));
+	} else {
+		data->fan_min[nr] = 0xff;
+	}
+	adm1031_write_value(client, ADM1031_REG_FAN_MIN(nr), data->fan_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
+			   const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1031_data *data = i2c_get_clientdata(client);
+	int nr = to_sensor_dev_attr(attr)->index;
+	int val = simple_strtol(buf, NULL, 10);
+	u8 tmp;
+	int old_div;
+	int new_min;
+
+	tmp = val == 8 ? 0xc0 :
+	      val == 4 ? 0x80 :
+	      val == 2 ? 0x40 :
+	      val == 1 ? 0x00 :
+	      0xff;
+	if (tmp == 0xff)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	/* Get fresh readings */
+	data->fan_div[nr] = adm1031_read_value(client,
+					       ADM1031_REG_FAN_DIV(nr));
+	data->fan_min[nr] = adm1031_read_value(client,
+					       ADM1031_REG_FAN_MIN(nr));
+
+	/* Write the new clock divider and fan min */
+	old_div = FAN_DIV_FROM_REG(data->fan_div[nr]);
+	data->fan_div[nr] = tmp | (0x3f & data->fan_div[nr]);
+	new_min = data->fan_min[nr] * old_div / val;
+	data->fan_min[nr] = new_min > 0xff ? 0xff : new_min;
+
+	adm1031_write_value(client, ADM1031_REG_FAN_DIV(nr),
+			    data->fan_div[nr]);
+	adm1031_write_value(client, ADM1031_REG_FAN_MIN(nr),
+			    data->fan_min[nr]);
+
+	/* Invalidate the cache: fan speed is no longer valid */
+	data->valid = 0;
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define fan_offset(offset)						\
+static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO,			\
+		show_fan, NULL, offset - 1);				\
+static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,		\
+		show_fan_min, set_fan_min, offset - 1);			\
+static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR,		\
+		show_fan_div, set_fan_div, offset - 1)
+
+fan_offset(1);
+fan_offset(2);
+
+
+/* Temps */
+static ssize_t show_temp(struct device *dev,
+			 struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct adm1031_data *data = adm1031_update_device(dev);
+	int ext;
+	ext = nr == 0 ?
+	    ((data->ext_temp[nr] >> 6) & 0x3) * 2 :
+	    (((data->ext_temp[nr] >> ((nr - 1) * 3)) & 7));
+	return sprintf(buf, "%d\n", TEMP_FROM_REG_EXT(data->temp[nr], ext));
+}
+static ssize_t show_temp_min(struct device *dev,
+			     struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct adm1031_data *data = adm1031_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr]));
+}
+static ssize_t show_temp_max(struct device *dev,
+			     struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct adm1031_data *data = adm1031_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr]));
+}
+static ssize_t show_temp_crit(struct device *dev,
+			      struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct adm1031_data *data = adm1031_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr]));
+}
+static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
+			    const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1031_data *data = i2c_get_clientdata(client);
+	int nr = to_sensor_dev_attr(attr)->index;
+	int val;
+
+	val = simple_strtol(buf, NULL, 10);
+	val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875);
+	mutex_lock(&data->update_lock);
+	data->temp_min[nr] = TEMP_TO_REG(val);
+	adm1031_write_value(client, ADM1031_REG_TEMP_MIN(nr),
+			    data->temp_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
+			    const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1031_data *data = i2c_get_clientdata(client);
+	int nr = to_sensor_dev_attr(attr)->index;
+	int val;
+
+	val = simple_strtol(buf, NULL, 10);
+	val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875);
+	mutex_lock(&data->update_lock);
+	data->temp_max[nr] = TEMP_TO_REG(val);
+	adm1031_write_value(client, ADM1031_REG_TEMP_MAX(nr),
+			    data->temp_max[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
+			     const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1031_data *data = i2c_get_clientdata(client);
+	int nr = to_sensor_dev_attr(attr)->index;
+	int val;
+
+	val = simple_strtol(buf, NULL, 10);
+	val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875);
+	mutex_lock(&data->update_lock);
+	data->temp_crit[nr] = TEMP_TO_REG(val);
+	adm1031_write_value(client, ADM1031_REG_TEMP_CRIT(nr),
+			    data->temp_crit[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define temp_reg(offset)						\
+static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO,		\
+		show_temp, NULL, offset - 1);				\
+static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR,	\
+		show_temp_min, set_temp_min, offset - 1);		\
+static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR,	\
+		show_temp_max, set_temp_max, offset - 1);		\
+static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR,	\
+		show_temp_crit, set_temp_crit, offset - 1)
+
+temp_reg(1);
+temp_reg(2);
+temp_reg(3);
+
+/* Alarms */
+static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct adm1031_data *data = adm1031_update_device(dev);
+	return sprintf(buf, "%d\n", data->alarm);
+}
+
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+static ssize_t show_alarm(struct device *dev,
+			  struct device_attribute *attr, char *buf)
+{
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	struct adm1031_data *data = adm1031_update_device(dev);
+	return sprintf(buf, "%d\n", (data->alarm >> bitnr) & 1);
+}
+
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan1_fault, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 7);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(fan2_fault, S_IRUGO, show_alarm, NULL, 9);
+static SENSOR_DEVICE_ATTR(temp3_max_alarm, S_IRUGO, show_alarm, NULL, 10);
+static SENSOR_DEVICE_ATTR(temp3_min_alarm, S_IRUGO, show_alarm, NULL, 11);
+static SENSOR_DEVICE_ATTR(temp3_crit_alarm, S_IRUGO, show_alarm, NULL, 12);
+static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 13);
+static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 14);
+
+static struct attribute *adm1031_attributes[] = {
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_div.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan1_fault.dev_attr.attr,
+	&sensor_dev_attr_pwm1.dev_attr.attr,
+	&sensor_dev_attr_auto_fan1_channel.dev_attr.attr,
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_crit.dev_attr.attr,
+	&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_min.dev_attr.attr,
+	&sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_crit.dev_attr.attr,
+	&sensor_dev_attr_temp2_crit_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_fault.dev_attr.attr,
+
+	&sensor_dev_attr_auto_temp1_off.dev_attr.attr,
+	&sensor_dev_attr_auto_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_auto_temp1_max.dev_attr.attr,
+
+	&sensor_dev_attr_auto_temp2_off.dev_attr.attr,
+	&sensor_dev_attr_auto_temp2_min.dev_attr.attr,
+	&sensor_dev_attr_auto_temp2_max.dev_attr.attr,
+
+	&sensor_dev_attr_auto_fan1_min_pwm.dev_attr.attr,
+
+	&dev_attr_alarms.attr,
+
+	NULL
+};
+
+static const struct attribute_group adm1031_group = {
+	.attrs = adm1031_attributes,
+};
+
+static struct attribute *adm1031_attributes_opt[] = {
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_div.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan2_fault.dev_attr.attr,
+	&sensor_dev_attr_pwm2.dev_attr.attr,
+	&sensor_dev_attr_auto_fan2_channel.dev_attr.attr,
+	&sensor_dev_attr_temp3_input.dev_attr.attr,
+	&sensor_dev_attr_temp3_min.dev_attr.attr,
+	&sensor_dev_attr_temp3_min_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp3_max.dev_attr.attr,
+	&sensor_dev_attr_temp3_max_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp3_crit.dev_attr.attr,
+	&sensor_dev_attr_temp3_crit_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp3_fault.dev_attr.attr,
+	&sensor_dev_attr_auto_temp3_off.dev_attr.attr,
+	&sensor_dev_attr_auto_temp3_min.dev_attr.attr,
+	&sensor_dev_attr_auto_temp3_max.dev_attr.attr,
+	&sensor_dev_attr_auto_fan2_min_pwm.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group adm1031_group_opt = {
+	.attrs = adm1031_attributes_opt,
+};
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int adm1031_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+	const char *name = "";
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	if (kind < 0) {
+		int id, co;
+		id = i2c_smbus_read_byte_data(client, 0x3d);
+		co = i2c_smbus_read_byte_data(client, 0x3e);
+
+		if (!((id == 0x31 || id == 0x30) && co == 0x41))
+			return -ENODEV;
+		kind = (id == 0x30) ? adm1030 : adm1031;
+	}
+
+	if (kind <= 0)
+		kind = adm1031;
+
+	/* Given the detected chip type, set the chip name and the
+	 * auto fan control helper table. */
+	if (kind == adm1030) {
+		name = "adm1030";
+	} else if (kind == adm1031) {
+		name = "adm1031";
+	}
+	strlcpy(info->type, name, I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int adm1031_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct adm1031_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct adm1031_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	data->chip_type = id->driver_data;
+	mutex_init(&data->update_lock);
+
+	if (data->chip_type == adm1030)
+		data->chan_select_table = &auto_channel_select_table_adm1030;
+	else
+		data->chan_select_table = &auto_channel_select_table_adm1031;
+
+	/* Initialize the ADM1031 chip */
+	adm1031_init_client(client);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&client->dev.kobj, &adm1031_group)))
+		goto exit_free;
+
+	if (data->chip_type == adm1031) {
+		if ((err = sysfs_create_group(&client->dev.kobj,
+						&adm1031_group_opt)))
+			goto exit_remove;
+	}
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	return 0;
+
+exit_remove:
+	sysfs_remove_group(&client->dev.kobj, &adm1031_group);
+	sysfs_remove_group(&client->dev.kobj, &adm1031_group_opt);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+static int adm1031_remove(struct i2c_client *client)
+{
+	struct adm1031_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &adm1031_group);
+	sysfs_remove_group(&client->dev.kobj, &adm1031_group_opt);
+	kfree(data);
+	return 0;
+}
+
+static void adm1031_init_client(struct i2c_client *client)
+{
+	unsigned int read_val;
+	unsigned int mask;
+	struct adm1031_data *data = i2c_get_clientdata(client);
+
+	mask = (ADM1031_CONF2_PWM1_ENABLE | ADM1031_CONF2_TACH1_ENABLE);
+	if (data->chip_type == adm1031) {
+		mask |= (ADM1031_CONF2_PWM2_ENABLE |
+			ADM1031_CONF2_TACH2_ENABLE);
+	}
+	/* Initialize the ADM1031 chip (enables fan speed reading ) */
+	read_val = adm1031_read_value(client, ADM1031_REG_CONF2);
+	if ((read_val | mask) != read_val) {
+	    adm1031_write_value(client, ADM1031_REG_CONF2, read_val | mask);
+	}
+
+	read_val = adm1031_read_value(client, ADM1031_REG_CONF1);
+	if ((read_val | ADM1031_CONF1_MONITOR_ENABLE) != read_val) {
+	    adm1031_write_value(client, ADM1031_REG_CONF1, read_val |
+				ADM1031_CONF1_MONITOR_ENABLE);
+	}
+
+}
+
+static struct adm1031_data *adm1031_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm1031_data *data = i2c_get_clientdata(client);
+	int chan;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	    || !data->valid) {
+
+		dev_dbg(&client->dev, "Starting adm1031 update\n");
+		for (chan = 0;
+		     chan < ((data->chip_type == adm1031) ? 3 : 2); chan++) {
+			u8 oldh, newh;
+
+			oldh =
+			    adm1031_read_value(client, ADM1031_REG_TEMP(chan));
+			data->ext_temp[chan] =
+			    adm1031_read_value(client, ADM1031_REG_EXT_TEMP);
+			newh =
+			    adm1031_read_value(client, ADM1031_REG_TEMP(chan));
+			if (newh != oldh) {
+				data->ext_temp[chan] =
+				    adm1031_read_value(client,
+						       ADM1031_REG_EXT_TEMP);
+#ifdef DEBUG
+				oldh =
+				    adm1031_read_value(client,
+						       ADM1031_REG_TEMP(chan));
+
+				/* oldh is actually newer */
+				if (newh != oldh)
+					dev_warn(&client->dev,
+						 "Remote temperature may be "
+						 "wrong.\n");
+#endif
+			}
+			data->temp[chan] = newh;
+
+			data->temp_min[chan] =
+			    adm1031_read_value(client,
+					       ADM1031_REG_TEMP_MIN(chan));
+			data->temp_max[chan] =
+			    adm1031_read_value(client,
+					       ADM1031_REG_TEMP_MAX(chan));
+			data->temp_crit[chan] =
+			    adm1031_read_value(client,
+					       ADM1031_REG_TEMP_CRIT(chan));
+			data->auto_temp[chan] =
+			    adm1031_read_value(client,
+					       ADM1031_REG_AUTO_TEMP(chan));
+
+		}
+
+		data->conf1 = adm1031_read_value(client, ADM1031_REG_CONF1);
+		data->conf2 = adm1031_read_value(client, ADM1031_REG_CONF2);
+
+		data->alarm = adm1031_read_value(client, ADM1031_REG_STATUS(0))
+			     | (adm1031_read_value(client, ADM1031_REG_STATUS(1))
+				<< 8);
+		if (data->chip_type == adm1030) {
+			data->alarm &= 0xc0ff;
+		}
+
+		for (chan=0; chan<(data->chip_type == adm1030 ? 1 : 2); chan++) {
+			data->fan_div[chan] =
+			    adm1031_read_value(client, ADM1031_REG_FAN_DIV(chan));
+			data->fan_min[chan] =
+			    adm1031_read_value(client, ADM1031_REG_FAN_MIN(chan));
+			data->fan[chan] =
+			    adm1031_read_value(client, ADM1031_REG_FAN_SPEED(chan));
+			data->pwm[chan] =
+			    0xf & (adm1031_read_value(client, ADM1031_REG_PWM) >>
+				   (4*chan));
+		}
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init sensors_adm1031_init(void)
+{
+	return i2c_add_driver(&adm1031_driver);
+}
+
+static void __exit sensors_adm1031_exit(void)
+{
+	i2c_del_driver(&adm1031_driver);
+}
+
+MODULE_AUTHOR("Alexandre d'Alton <alex@alexdalton.org>");
+MODULE_DESCRIPTION("ADM1031/ADM1030 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_adm1031_init);
+module_exit(sensors_adm1031_exit);
diff --git a/drivers/hwmon/adm9240.c b/drivers/hwmon/adm9240.c
new file mode 100644
index 0000000..2444b15
--- /dev/null
+++ b/drivers/hwmon/adm9240.c
@@ -0,0 +1,807 @@
+/*
+ * adm9240.c	Part of lm_sensors, Linux kernel modules for hardware
+ * 		monitoring
+ *
+ * Copyright (C) 1999	Frodo Looijaard <frodol@dds.nl>
+ *			Philip Edelbrock <phil@netroedge.com>
+ * Copyright (C) 2003	Michiel Rook <michiel@grendelproject.nl>
+ * Copyright (C) 2005	Grant Coady <gcoady.lk@gmail.com> with valuable
+ * 				guidance from Jean Delvare
+ *
+ * Driver supports	Analog Devices		ADM9240
+ *			Dallas Semiconductor	DS1780
+ *			National Semiconductor	LM81
+ *
+ * ADM9240 is the reference, DS1780 and LM81 are register compatibles
+ *
+ * Voltage	Six inputs are scaled by chip, VID also reported
+ * Temperature	Chip temperature to 0.5'C, maximum and max_hysteris
+ * Fans		2 fans, low speed alarm, automatic fan clock divider
+ * Alarms	16-bit map of active alarms
+ * Analog Out	0..1250 mV output
+ *
+ * Chassis Intrusion: clear CI latch with 'echo 1 > chassis_clear'
+ *
+ * Test hardware: Intel SE440BX-2 desktop motherboard --Grant
+ *
+ * LM81 extended temp reading not implemented
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-vid.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
+					I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_3(adm9240, ds1780, lm81);
+
+/* ADM9240 registers */
+#define ADM9240_REG_MAN_ID		0x3e
+#define ADM9240_REG_DIE_REV		0x3f
+#define ADM9240_REG_CONFIG		0x40
+
+#define ADM9240_REG_IN(nr)		(0x20 + (nr))   /* 0..5 */
+#define ADM9240_REG_IN_MAX(nr)		(0x2b + (nr) * 2)
+#define ADM9240_REG_IN_MIN(nr)		(0x2c + (nr) * 2)
+#define ADM9240_REG_FAN(nr)		(0x28 + (nr))   /* 0..1 */
+#define ADM9240_REG_FAN_MIN(nr)		(0x3b + (nr))
+#define ADM9240_REG_INT(nr)		(0x41 + (nr))
+#define ADM9240_REG_INT_MASK(nr)	(0x43 + (nr))
+#define ADM9240_REG_TEMP		0x27
+#define ADM9240_REG_TEMP_MAX(nr)	(0x39 + (nr)) /* 0, 1 = high, hyst */
+#define ADM9240_REG_ANALOG_OUT		0x19
+#define ADM9240_REG_CHASSIS_CLEAR	0x46
+#define ADM9240_REG_VID_FAN_DIV		0x47
+#define ADM9240_REG_I2C_ADDR		0x48
+#define ADM9240_REG_VID4		0x49
+#define ADM9240_REG_TEMP_CONF		0x4b
+
+/* generalised scaling with integer rounding */
+static inline int SCALE(long val, int mul, int div)
+{
+	if (val < 0)
+		return (val * mul - div / 2) / div;
+	else
+		return (val * mul + div / 2) / div;
+}
+
+/* adm9240 internally scales voltage measurements */
+static const u16 nom_mv[] = { 2500, 2700, 3300, 5000, 12000, 2700 };
+
+static inline unsigned int IN_FROM_REG(u8 reg, int n)
+{
+	return SCALE(reg, nom_mv[n], 192);
+}
+
+static inline u8 IN_TO_REG(unsigned long val, int n)
+{
+	return SENSORS_LIMIT(SCALE(val, 192, nom_mv[n]), 0, 255);
+}
+
+/* temperature range: -40..125, 127 disables temperature alarm */
+static inline s8 TEMP_TO_REG(long val)
+{
+	return SENSORS_LIMIT(SCALE(val, 1, 1000), -40, 127);
+}
+
+/* two fans, each with low fan speed limit */
+static inline unsigned int FAN_FROM_REG(u8 reg, u8 div)
+{
+	if (!reg) /* error */
+		return -1;
+
+	if (reg == 255)
+		return 0;
+
+	return SCALE(1350000, 1, reg * div);
+}
+
+/* analog out 0..1250mV */
+static inline u8 AOUT_TO_REG(unsigned long val)
+{
+	return SENSORS_LIMIT(SCALE(val, 255, 1250), 0, 255);
+}
+
+static inline unsigned int AOUT_FROM_REG(u8 reg)
+{
+	return SCALE(reg, 1250, 255);
+}
+
+static int adm9240_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int adm9240_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
+static void adm9240_init_client(struct i2c_client *client);
+static int adm9240_remove(struct i2c_client *client);
+static struct adm9240_data *adm9240_update_device(struct device *dev);
+
+/* driver data */
+static const struct i2c_device_id adm9240_id[] = {
+	{ "adm9240", adm9240 },
+	{ "ds1780", ds1780 },
+	{ "lm81", lm81 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adm9240_id);
+
+static struct i2c_driver adm9240_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "adm9240",
+	},
+	.probe		= adm9240_probe,
+	.remove		= adm9240_remove,
+	.id_table	= adm9240_id,
+	.detect		= adm9240_detect,
+	.address_data	= &addr_data,
+};
+
+/* per client data */
+struct adm9240_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	char valid;
+	unsigned long last_updated_measure;
+	unsigned long last_updated_config;
+
+	u8 in[6];		/* ro	in0_input */
+	u8 in_max[6];		/* rw	in0_max */
+	u8 in_min[6];		/* rw	in0_min */
+	u8 fan[2];		/* ro	fan1_input */
+	u8 fan_min[2];		/* rw	fan1_min */
+	u8 fan_div[2];		/* rw	fan1_div, read-only accessor */
+	s16 temp;		/* ro	temp1_input, 9-bit sign-extended */
+	s8 temp_max[2];		/* rw	0 -> temp_max, 1 -> temp_max_hyst */
+	u16 alarms;		/* ro	alarms */
+	u8 aout;		/* rw	aout_output */
+	u8 vid;			/* ro	vid */
+	u8 vrm;			/* --	vrm set on startup, no accessor */
+};
+
+/*** sysfs accessors ***/
+
+/* temperature */
+static ssize_t show_temp(struct device *dev, struct device_attribute *dummy,
+		char *buf)
+{
+	struct adm9240_data *data = adm9240_update_device(dev);
+	return sprintf(buf, "%d\n", data->temp * 500); /* 9-bit value */
+}
+
+static ssize_t show_max(struct device *dev, struct device_attribute *devattr,
+		char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adm9240_data *data = adm9240_update_device(dev);
+	return sprintf(buf, "%d\n", data->temp_max[attr->index] * 1000);
+}
+
+static ssize_t set_max(struct device *dev, struct device_attribute *devattr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm9240_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_max[attr->index] = TEMP_TO_REG(val);
+	i2c_smbus_write_byte_data(client, ADM9240_REG_TEMP_MAX(attr->index),
+			data->temp_max[attr->index]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
+		show_max, set_max, 0);
+static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO,
+		show_max, set_max, 1);
+
+/* voltage */
+static ssize_t show_in(struct device *dev, struct device_attribute *devattr,
+		char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adm9240_data *data = adm9240_update_device(dev);
+	return sprintf(buf, "%d\n", IN_FROM_REG(data->in[attr->index],
+				attr->index));
+}
+
+static ssize_t show_in_min(struct device *dev,
+		struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adm9240_data *data = adm9240_update_device(dev);
+	return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[attr->index],
+				attr->index));
+}
+
+static ssize_t show_in_max(struct device *dev,
+		struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adm9240_data *data = adm9240_update_device(dev);
+	return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[attr->index],
+				attr->index));
+}
+
+static ssize_t set_in_min(struct device *dev,
+		struct device_attribute *devattr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm9240_data *data = i2c_get_clientdata(client);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_min[attr->index] = IN_TO_REG(val, attr->index);
+	i2c_smbus_write_byte_data(client, ADM9240_REG_IN_MIN(attr->index),
+			data->in_min[attr->index]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t set_in_max(struct device *dev,
+		struct device_attribute *devattr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm9240_data *data = i2c_get_clientdata(client);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_max[attr->index] = IN_TO_REG(val, attr->index);
+	i2c_smbus_write_byte_data(client, ADM9240_REG_IN_MAX(attr->index),
+			data->in_max[attr->index]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define vin(nr)							\
+static SENSOR_DEVICE_ATTR(in##nr##_input, S_IRUGO, 		\
+		show_in, NULL, nr);				\
+static SENSOR_DEVICE_ATTR(in##nr##_min, S_IRUGO | S_IWUSR,	\
+		show_in_min, set_in_min, nr);			\
+static SENSOR_DEVICE_ATTR(in##nr##_max, S_IRUGO | S_IWUSR,	\
+		show_in_max, set_in_max, nr);
+
+vin(0);
+vin(1);
+vin(2);
+vin(3);
+vin(4);
+vin(5);
+
+/* fans */
+static ssize_t show_fan(struct device *dev,
+		struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adm9240_data *data = adm9240_update_device(dev);
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[attr->index],
+				1 << data->fan_div[attr->index]));
+}
+
+static ssize_t show_fan_min(struct device *dev,
+		struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adm9240_data *data = adm9240_update_device(dev);
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[attr->index],
+				1 << data->fan_div[attr->index]));
+}
+
+static ssize_t show_fan_div(struct device *dev,
+		struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adm9240_data *data = adm9240_update_device(dev);
+	return sprintf(buf, "%d\n", 1 << data->fan_div[attr->index]);
+}
+
+/* write new fan div, callers must hold data->update_lock */
+static void adm9240_write_fan_div(struct i2c_client *client, int nr,
+		u8 fan_div)
+{
+	u8 reg, old, shift = (nr + 2) * 2;
+
+	reg = i2c_smbus_read_byte_data(client, ADM9240_REG_VID_FAN_DIV);
+	old = (reg >> shift) & 3;
+	reg &= ~(3 << shift);
+	reg |= (fan_div << shift);
+	i2c_smbus_write_byte_data(client, ADM9240_REG_VID_FAN_DIV, reg);
+	dev_dbg(&client->dev, "fan%d clock divider changed from %u "
+			"to %u\n", nr + 1, 1 << old, 1 << fan_div);
+}
+
+/*
+ * set fan speed low limit:
+ *
+ * - value is zero: disable fan speed low limit alarm
+ *
+ * - value is below fan speed measurement range: enable fan speed low
+ *   limit alarm to be asserted while fan speed too slow to measure
+ *
+ * - otherwise: select fan clock divider to suit fan speed low limit,
+ *   measurement code may adjust registers to ensure fan speed reading
+ */
+static ssize_t set_fan_min(struct device *dev,
+		struct device_attribute *devattr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm9240_data *data = i2c_get_clientdata(client);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+	int nr = attr->index;
+	u8 new_div;
+
+	mutex_lock(&data->update_lock);
+
+	if (!val) {
+		data->fan_min[nr] = 255;
+		new_div = data->fan_div[nr];
+
+		dev_dbg(&client->dev, "fan%u low limit set disabled\n",
+				nr + 1);
+
+	} else if (val < 1350000 / (8 * 254)) {
+		new_div = 3;
+		data->fan_min[nr] = 254;
+
+		dev_dbg(&client->dev, "fan%u low limit set minimum %u\n",
+				nr + 1, FAN_FROM_REG(254, 1 << new_div));
+
+	} else {
+		unsigned int new_min = 1350000 / val;
+
+		new_div = 0;
+		while (new_min > 192 && new_div < 3) {
+			new_div++;
+			new_min /= 2;
+		}
+		if (!new_min) /* keep > 0 */
+			new_min++;
+
+		data->fan_min[nr] = new_min;
+
+		dev_dbg(&client->dev, "fan%u low limit set fan speed %u\n",
+				nr + 1, FAN_FROM_REG(new_min, 1 << new_div));
+	}
+
+	if (new_div != data->fan_div[nr]) {
+		data->fan_div[nr] = new_div;
+		adm9240_write_fan_div(client, nr, new_div);
+	}
+	i2c_smbus_write_byte_data(client, ADM9240_REG_FAN_MIN(nr),
+			data->fan_min[nr]);
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define fan(nr)							\
+static SENSOR_DEVICE_ATTR(fan##nr##_input, S_IRUGO,		\
+		show_fan, NULL, nr - 1);			\
+static SENSOR_DEVICE_ATTR(fan##nr##_div, S_IRUGO,		\
+		show_fan_div, NULL, nr - 1);			\
+static SENSOR_DEVICE_ATTR(fan##nr##_min, S_IRUGO | S_IWUSR,	\
+		show_fan_min, set_fan_min, nr - 1);
+
+fan(1);
+fan(2);
+
+/* alarms */
+static ssize_t show_alarms(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct adm9240_data *data = adm9240_update_device(dev);
+	return sprintf(buf, "%u\n", data->alarms);
+}
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+static ssize_t show_alarm(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	struct adm9240_data *data = adm9240_update_device(dev);
+	return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
+}
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 9);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7);
+
+/* vid */
+static ssize_t show_vid(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct adm9240_data *data = adm9240_update_device(dev);
+	return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
+}
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
+
+/* analog output */
+static ssize_t show_aout(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct adm9240_data *data = adm9240_update_device(dev);
+	return sprintf(buf, "%d\n", AOUT_FROM_REG(data->aout));
+}
+
+static ssize_t set_aout(struct device *dev,
+		struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm9240_data *data = i2c_get_clientdata(client);
+	unsigned long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->aout = AOUT_TO_REG(val);
+	i2c_smbus_write_byte_data(client, ADM9240_REG_ANALOG_OUT, data->aout);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static DEVICE_ATTR(aout_output, S_IRUGO | S_IWUSR, show_aout, set_aout);
+
+/* chassis_clear */
+static ssize_t chassis_clear(struct device *dev,
+		struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	unsigned long val = simple_strtol(buf, NULL, 10);
+
+	if (val == 1) {
+		i2c_smbus_write_byte_data(client,
+				ADM9240_REG_CHASSIS_CLEAR, 0x80);
+		dev_dbg(&client->dev, "chassis intrusion latch cleared\n");
+	}
+	return count;
+}
+static DEVICE_ATTR(chassis_clear, S_IWUSR, NULL, chassis_clear);
+
+static struct attribute *adm9240_attributes[] = {
+	&sensor_dev_attr_in0_input.dev_attr.attr,
+	&sensor_dev_attr_in0_min.dev_attr.attr,
+	&sensor_dev_attr_in0_max.dev_attr.attr,
+	&sensor_dev_attr_in0_alarm.dev_attr.attr,
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in1_min.dev_attr.attr,
+	&sensor_dev_attr_in1_max.dev_attr.attr,
+	&sensor_dev_attr_in1_alarm.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in2_min.dev_attr.attr,
+	&sensor_dev_attr_in2_max.dev_attr.attr,
+	&sensor_dev_attr_in2_alarm.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in3_min.dev_attr.attr,
+	&sensor_dev_attr_in3_max.dev_attr.attr,
+	&sensor_dev_attr_in3_alarm.dev_attr.attr,
+	&sensor_dev_attr_in4_input.dev_attr.attr,
+	&sensor_dev_attr_in4_min.dev_attr.attr,
+	&sensor_dev_attr_in4_max.dev_attr.attr,
+	&sensor_dev_attr_in4_alarm.dev_attr.attr,
+	&sensor_dev_attr_in5_input.dev_attr.attr,
+	&sensor_dev_attr_in5_min.dev_attr.attr,
+	&sensor_dev_attr_in5_max.dev_attr.attr,
+	&sensor_dev_attr_in5_alarm.dev_attr.attr,
+	&dev_attr_temp1_input.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp1_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_div.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_div.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
+	&dev_attr_alarms.attr,
+	&dev_attr_aout_output.attr,
+	&dev_attr_chassis_clear.attr,
+	&dev_attr_cpu0_vid.attr,
+	NULL
+};
+
+static const struct attribute_group adm9240_group = {
+	.attrs = adm9240_attributes,
+};
+
+
+/*** sensor chip detect and driver install ***/
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int adm9240_detect(struct i2c_client *new_client, int kind,
+			  struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = new_client->adapter;
+	const char *name = "";
+	int address = new_client->addr;
+	u8 man_id, die_rev;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	if (kind == 0) {
+		kind = adm9240;
+	}
+
+	if (kind < 0) {
+
+		/* verify chip: reg address should match i2c address */
+		if (i2c_smbus_read_byte_data(new_client, ADM9240_REG_I2C_ADDR)
+				!= address) {
+			dev_err(&adapter->dev, "detect fail: address match, "
+					"0x%02x\n", address);
+			return -ENODEV;
+		}
+
+		/* check known chip manufacturer */
+		man_id = i2c_smbus_read_byte_data(new_client,
+				ADM9240_REG_MAN_ID);
+		if (man_id == 0x23) {
+			kind = adm9240;
+		} else if (man_id == 0xda) {
+			kind = ds1780;
+		} else if (man_id == 0x01) {
+			kind = lm81;
+		} else {
+			dev_err(&adapter->dev, "detect fail: unknown manuf, "
+					"0x%02x\n", man_id);
+			return -ENODEV;
+		}
+
+		/* successful detect, print chip info */
+		die_rev = i2c_smbus_read_byte_data(new_client,
+				ADM9240_REG_DIE_REV);
+		dev_info(&adapter->dev, "found %s revision %u\n",
+				man_id == 0x23 ? "ADM9240" :
+				man_id == 0xda ? "DS1780" : "LM81", die_rev);
+	}
+
+	/* either forced or detected chip kind */
+	if (kind == adm9240) {
+		name = "adm9240";
+	} else if (kind == ds1780) {
+		name = "ds1780";
+	} else if (kind == lm81) {
+		name = "lm81";
+	}
+	strlcpy(info->type, name, I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int adm9240_probe(struct i2c_client *new_client,
+			 const struct i2c_device_id *id)
+{
+	struct adm9240_data *data;
+	int err;
+
+	data = kzalloc(sizeof(*data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(new_client, data);
+	mutex_init(&data->update_lock);
+
+	adm9240_init_client(new_client);
+
+	/* populate sysfs filesystem */
+	if ((err = sysfs_create_group(&new_client->dev.kobj, &adm9240_group)))
+		goto exit_free;
+
+	data->hwmon_dev = hwmon_device_register(&new_client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	return 0;
+
+exit_remove:
+	sysfs_remove_group(&new_client->dev.kobj, &adm9240_group);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+static int adm9240_remove(struct i2c_client *client)
+{
+	struct adm9240_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &adm9240_group);
+
+	kfree(data);
+	return 0;
+}
+
+static void adm9240_init_client(struct i2c_client *client)
+{
+	struct adm9240_data *data = i2c_get_clientdata(client);
+	u8 conf = i2c_smbus_read_byte_data(client, ADM9240_REG_CONFIG);
+	u8 mode = i2c_smbus_read_byte_data(client, ADM9240_REG_TEMP_CONF) & 3;
+
+	data->vrm = vid_which_vrm(); /* need this to report vid as mV */
+
+	dev_info(&client->dev, "Using VRM: %d.%d\n", data->vrm / 10,
+			data->vrm % 10);
+
+	if (conf & 1) { /* measurement cycle running: report state */
+
+		dev_info(&client->dev, "status: config 0x%02x mode %u\n",
+				conf, mode);
+
+	} else { /* cold start: open limits before starting chip */
+		int i;
+
+		for (i = 0; i < 6; i++)
+		{
+			i2c_smbus_write_byte_data(client,
+					ADM9240_REG_IN_MIN(i), 0);
+			i2c_smbus_write_byte_data(client,
+					ADM9240_REG_IN_MAX(i), 255);
+		}
+		i2c_smbus_write_byte_data(client,
+				ADM9240_REG_FAN_MIN(0), 255);
+		i2c_smbus_write_byte_data(client,
+				ADM9240_REG_FAN_MIN(1), 255);
+		i2c_smbus_write_byte_data(client,
+				ADM9240_REG_TEMP_MAX(0), 127);
+		i2c_smbus_write_byte_data(client,
+				ADM9240_REG_TEMP_MAX(1), 127);
+
+		/* start measurement cycle */
+		i2c_smbus_write_byte_data(client, ADM9240_REG_CONFIG, 1);
+
+		dev_info(&client->dev, "cold start: config was 0x%02x "
+				"mode %u\n", conf, mode);
+	}
+}
+
+static struct adm9240_data *adm9240_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adm9240_data *data = i2c_get_clientdata(client);
+	int i;
+
+	mutex_lock(&data->update_lock);
+
+	/* minimum measurement cycle: 1.75 seconds */
+	if (time_after(jiffies, data->last_updated_measure + (HZ * 7 / 4))
+			|| !data->valid) {
+
+		for (i = 0; i < 6; i++) /* read voltages */
+		{
+			data->in[i] = i2c_smbus_read_byte_data(client,
+					ADM9240_REG_IN(i));
+		}
+		data->alarms = i2c_smbus_read_byte_data(client,
+					ADM9240_REG_INT(0)) |
+					i2c_smbus_read_byte_data(client,
+					ADM9240_REG_INT(1)) << 8;
+
+		/* read temperature: assume temperature changes less than
+		 * 0.5'C per two measurement cycles thus ignore possible
+		 * but unlikely aliasing error on lsb reading. --Grant */
+		data->temp = ((i2c_smbus_read_byte_data(client,
+					ADM9240_REG_TEMP) << 8) |
+					i2c_smbus_read_byte_data(client,
+					ADM9240_REG_TEMP_CONF)) / 128;
+
+		for (i = 0; i < 2; i++) /* read fans */
+		{
+			data->fan[i] = i2c_smbus_read_byte_data(client,
+					ADM9240_REG_FAN(i));
+
+			/* adjust fan clock divider on overflow */
+			if (data->valid && data->fan[i] == 255 &&
+					data->fan_div[i] < 3) {
+
+				adm9240_write_fan_div(client, i,
+						++data->fan_div[i]);
+
+				/* adjust fan_min if active, but not to 0 */
+				if (data->fan_min[i] < 255 &&
+						data->fan_min[i] >= 2)
+					data->fan_min[i] /= 2;
+			}
+		}
+		data->last_updated_measure = jiffies;
+	}
+
+	/* minimum config reading cycle: 300 seconds */
+	if (time_after(jiffies, data->last_updated_config + (HZ * 300))
+			|| !data->valid) {
+
+		for (i = 0; i < 6; i++)
+		{
+			data->in_min[i] = i2c_smbus_read_byte_data(client,
+					ADM9240_REG_IN_MIN(i));
+			data->in_max[i] = i2c_smbus_read_byte_data(client,
+					ADM9240_REG_IN_MAX(i));
+		}
+		for (i = 0; i < 2; i++)
+		{
+			data->fan_min[i] = i2c_smbus_read_byte_data(client,
+					ADM9240_REG_FAN_MIN(i));
+		}
+		data->temp_max[0] = i2c_smbus_read_byte_data(client,
+				ADM9240_REG_TEMP_MAX(0));
+		data->temp_max[1] = i2c_smbus_read_byte_data(client,
+				ADM9240_REG_TEMP_MAX(1));
+
+		/* read fan divs and 5-bit VID */
+		i = i2c_smbus_read_byte_data(client, ADM9240_REG_VID_FAN_DIV);
+		data->fan_div[0] = (i >> 4) & 3;
+		data->fan_div[1] = (i >> 6) & 3;
+		data->vid = i & 0x0f;
+		data->vid |= (i2c_smbus_read_byte_data(client,
+					ADM9240_REG_VID4) & 1) << 4;
+		/* read analog out */
+		data->aout = i2c_smbus_read_byte_data(client,
+				ADM9240_REG_ANALOG_OUT);
+
+		data->last_updated_config = jiffies;
+		data->valid = 1;
+	}
+	mutex_unlock(&data->update_lock);
+	return data;
+}
+
+static int __init sensors_adm9240_init(void)
+{
+	return i2c_add_driver(&adm9240_driver);
+}
+
+static void __exit sensors_adm9240_exit(void)
+{
+	i2c_del_driver(&adm9240_driver);
+}
+
+MODULE_AUTHOR("Michiel Rook <michiel@grendelproject.nl>, "
+		"Grant Coady <gcoady.lk@gmail.com> and others");
+MODULE_DESCRIPTION("ADM9240/DS1780/LM81 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_adm9240_init);
+module_exit(sensors_adm9240_exit);
+
diff --git a/drivers/hwmon/ads7828.c b/drivers/hwmon/ads7828.c
new file mode 100644
index 0000000..5c39b4a
--- /dev/null
+++ b/drivers/hwmon/ads7828.c
@@ -0,0 +1,284 @@
+/*
+	ads7828.c - lm_sensors driver for ads7828 12-bit 8-channel ADC
+	(C) 2007 EADS Astrium
+
+	This driver is based on the lm75 and other lm_sensors/hwmon drivers
+
+	Written by Steve Hardy <steve@linuxrealtime.co.uk>
+
+	Datasheet available at: http://focus.ti.com/lit/ds/symlink/ads7828.pdf
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program; if not, write to the Free Software
+	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+/* The ADS7828 registers */
+#define ADS7828_NCH 8 /* 8 channels of 12-bit A-D supported */
+#define ADS7828_CMD_SD_SE 0x80 /* Single ended inputs */
+#define ADS7828_CMD_SD_DIFF 0x00 /* Differential inputs */
+#define ADS7828_CMD_PD0 0x0 /* Power Down between A-D conversions */
+#define ADS7828_CMD_PD1 0x04 /* Internal ref OFF && A-D ON */
+#define ADS7828_CMD_PD2 0x08 /* Internal ref ON && A-D OFF */
+#define ADS7828_CMD_PD3 0x0C /* Internal ref ON && A-D ON */
+#define ADS7828_INT_VREF_MV 2500 /* Internal vref is 2.5V, 2500mV */
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b,
+	I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_1(ads7828);
+
+/* Other module parameters */
+static int se_input = 1; /* Default is SE, 0 == diff */
+static int int_vref = 1; /* Default is internal ref ON */
+static int vref_mv = ADS7828_INT_VREF_MV; /* set if vref != 2.5V */
+module_param(se_input, bool, S_IRUGO);
+module_param(int_vref, bool, S_IRUGO);
+module_param(vref_mv, int, S_IRUGO);
+
+/* Global Variables */
+static u8 ads7828_cmd_byte; /* cmd byte without channel bits */
+static unsigned int ads7828_lsb_resol; /* resolution of the ADC sample lsb */
+
+/* Each client has this additional data */
+struct ads7828_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock; /* mutex protect updates */
+	char valid; /* !=0 if following fields are valid */
+	unsigned long last_updated; /* In jiffies */
+	u16 adc_input[ADS7828_NCH]; /* ADS7828_NCH 12-bit samples */
+};
+
+/* Function declaration - necessary due to function dependencies */
+static int ads7828_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
+static int ads7828_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+
+/* The ADS7828 returns the 12-bit sample in two bytes,
+	these are read as a word then byte-swapped */
+static u16 ads7828_read_value(struct i2c_client *client, u8 reg)
+{
+	return swab16(i2c_smbus_read_word_data(client, reg));
+}
+
+static inline u8 channel_cmd_byte(int ch)
+{
+	/* cmd byte C2,C1,C0 - see datasheet */
+	u8 cmd = (((ch>>1) | (ch&0x01)<<2)<<4);
+	cmd |= ads7828_cmd_byte;
+	return cmd;
+}
+
+/* Update data for the device (all 8 channels) */
+static struct ads7828_data *ads7828_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct ads7828_data *data = i2c_get_clientdata(client);
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+			|| !data->valid) {
+		unsigned int ch;
+		dev_dbg(&client->dev, "Starting ads7828 update\n");
+
+		for (ch = 0; ch < ADS7828_NCH; ch++) {
+			u8 cmd = channel_cmd_byte(ch);
+			data->adc_input[ch] = ads7828_read_value(client, cmd);
+		}
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+/* sysfs callback function */
+static ssize_t show_in(struct device *dev, struct device_attribute *da,
+	char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct ads7828_data *data = ads7828_update_device(dev);
+	/* Print value (in mV as specified in sysfs-interface documentation) */
+	return sprintf(buf, "%d\n", (data->adc_input[attr->index] *
+		ads7828_lsb_resol)/1000);
+}
+
+#define in_reg(offset)\
+static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in,\
+	NULL, offset)
+
+in_reg(0);
+in_reg(1);
+in_reg(2);
+in_reg(3);
+in_reg(4);
+in_reg(5);
+in_reg(6);
+in_reg(7);
+
+static struct attribute *ads7828_attributes[] = {
+	&sensor_dev_attr_in0_input.dev_attr.attr,
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in4_input.dev_attr.attr,
+	&sensor_dev_attr_in5_input.dev_attr.attr,
+	&sensor_dev_attr_in6_input.dev_attr.attr,
+	&sensor_dev_attr_in7_input.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group ads7828_group = {
+	.attrs = ads7828_attributes,
+};
+
+static int ads7828_remove(struct i2c_client *client)
+{
+	struct ads7828_data *data = i2c_get_clientdata(client);
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &ads7828_group);
+	kfree(i2c_get_clientdata(client));
+	return 0;
+}
+
+static const struct i2c_device_id ads7828_id[] = {
+	{ "ads7828", ads7828 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, ads7828_id);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver ads7828_driver = {
+	.class = I2C_CLASS_HWMON,
+	.driver = {
+		.name = "ads7828",
+	},
+	.probe = ads7828_probe,
+	.remove = ads7828_remove,
+	.id_table = ads7828_id,
+	.detect = ads7828_detect,
+	.address_data = &addr_data,
+};
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int ads7828_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+
+	/* Check we have a valid client */
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_WORD_DATA))
+		return -ENODEV;
+
+	/* Now, we do the remaining detection. There is no identification
+	dedicated register so attempt to sanity check using knowledge of
+	the chip
+	- Read from the 8 channel addresses
+	- Check the top 4 bits of each result are not set (12 data bits)
+	*/
+	if (kind < 0) {
+		int ch;
+		for (ch = 0; ch < ADS7828_NCH; ch++) {
+			u16 in_data;
+			u8 cmd = channel_cmd_byte(ch);
+			in_data = ads7828_read_value(client, cmd);
+			if (in_data & 0xF000) {
+				printk(KERN_DEBUG
+				"%s : Doesn't look like an ads7828 device\n",
+				__func__);
+				return -ENODEV;
+			}
+		}
+	}
+	strlcpy(info->type, "ads7828", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int ads7828_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct ads7828_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct ads7828_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
+
+	/* Register sysfs hooks */
+	err = sysfs_create_group(&client->dev.kobj, &ads7828_group);
+	if (err)
+		goto exit_free;
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	return 0;
+
+exit_remove:
+	sysfs_remove_group(&client->dev.kobj, &ads7828_group);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+static int __init sensors_ads7828_init(void)
+{
+	/* Initialize the command byte according to module parameters */
+	ads7828_cmd_byte = se_input ?
+		ADS7828_CMD_SD_SE : ADS7828_CMD_SD_DIFF;
+	ads7828_cmd_byte |= int_vref ?
+		ADS7828_CMD_PD3 : ADS7828_CMD_PD1;
+
+	/* Calculate the LSB resolution */
+	ads7828_lsb_resol = (vref_mv*1000)/4096;
+
+	return i2c_add_driver(&ads7828_driver);
+}
+
+static void __exit sensors_ads7828_exit(void)
+{
+	i2c_del_driver(&ads7828_driver);
+}
+
+MODULE_AUTHOR("Steve Hardy <steve@linuxrealtime.co.uk>");
+MODULE_DESCRIPTION("ADS7828 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_ads7828_init);
+module_exit(sensors_ads7828_exit);
diff --git a/drivers/hwmon/adt7462.c b/drivers/hwmon/adt7462.c
new file mode 100644
index 0000000..66107b4
--- /dev/null
+++ b/drivers/hwmon/adt7462.c
@@ -0,0 +1,2002 @@
+/*
+ * A hwmon driver for the Analog Devices ADT7462
+ * Copyright (C) 2008 IBM
+ *
+ * Author: Darrick J. Wong <djwong@us.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/module.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/delay.h>
+#include <linux/log2.h>
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x58, 0x5C, I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_1(adt7462);
+
+/* ADT7462 registers */
+#define ADT7462_REG_DEVICE			0x3D
+#define ADT7462_REG_VENDOR			0x3E
+#define ADT7462_REG_REVISION			0x3F
+
+#define ADT7462_REG_MIN_TEMP_BASE_ADDR		0x44
+#define ADT7462_REG_MIN_TEMP_MAX_ADDR		0x47
+#define ADT7462_REG_MAX_TEMP_BASE_ADDR		0x48
+#define ADT7462_REG_MAX_TEMP_MAX_ADDR		0x4B
+#define ADT7462_REG_TEMP_BASE_ADDR		0x88
+#define ADT7462_REG_TEMP_MAX_ADDR		0x8F
+
+#define ADT7462_REG_FAN_BASE_ADDR		0x98
+#define ADT7462_REG_FAN_MAX_ADDR		0x9F
+#define ADT7462_REG_FAN2_BASE_ADDR		0xA2
+#define ADT7462_REG_FAN2_MAX_ADDR		0xA9
+#define ADT7462_REG_FAN_ENABLE			0x07
+#define ADT7462_REG_FAN_MIN_BASE_ADDR		0x78
+#define ADT7462_REG_FAN_MIN_MAX_ADDR		0x7F
+
+#define ADT7462_REG_CFG2			0x02
+#define		ADT7462_FSPD_MASK		0x20
+
+#define ADT7462_REG_PWM_BASE_ADDR		0xAA
+#define ADT7462_REG_PWM_MAX_ADDR		0xAD
+#define	ADT7462_REG_PWM_MIN_BASE_ADDR		0x28
+#define ADT7462_REG_PWM_MIN_MAX_ADDR		0x2B
+#define ADT7462_REG_PWM_MAX			0x2C
+#define ADT7462_REG_PWM_TEMP_MIN_BASE_ADDR	0x5C
+#define ADT7462_REG_PWM_TEMP_MIN_MAX_ADDR	0x5F
+#define ADT7462_REG_PWM_TEMP_RANGE_BASE_ADDR	0x60
+#define ADT7462_REG_PWM_TEMP_RANGE_MAX_ADDR	0x63
+#define 	ADT7462_PWM_HYST_MASK		0x0F
+#define 	ADT7462_PWM_RANGE_MASK		0xF0
+#define		ADT7462_PWM_RANGE_SHIFT		4
+#define ADT7462_REG_PWM_CFG_BASE_ADDR		0x21
+#define ADT7462_REG_PWM_CFG_MAX_ADDR		0x24
+#define		ADT7462_PWM_CHANNEL_MASK	0xE0
+#define		ADT7462_PWM_CHANNEL_SHIFT	5
+
+#define ADT7462_REG_PIN_CFG_BASE_ADDR		0x10
+#define ADT7462_REG_PIN_CFG_MAX_ADDR		0x13
+#define		ADT7462_PIN7_INPUT		0x01	/* cfg0 */
+#define		ADT7462_DIODE3_INPUT		0x20
+#define		ADT7462_DIODE1_INPUT		0x40
+#define		ADT7462_VID_INPUT		0x80
+#define		ADT7462_PIN22_INPUT		0x04	/* cfg1 */
+#define		ADT7462_PIN21_INPUT		0x08
+#define		ADT7462_PIN19_INPUT		0x10
+#define		ADT7462_PIN15_INPUT		0x20
+#define		ADT7462_PIN13_INPUT		0x40
+#define		ADT7462_PIN8_INPUT		0x80
+#define 	ADT7462_PIN23_MASK		0x03
+#define		ADT7462_PIN23_SHIFT		0
+#define		ADT7462_PIN26_MASK		0x0C	/* cfg2 */
+#define		ADT7462_PIN26_SHIFT		2
+#define		ADT7462_PIN25_MASK		0x30
+#define		ADT7462_PIN25_SHIFT		4
+#define		ADT7462_PIN24_MASK		0xC0
+#define		ADT7462_PIN24_SHIFT		6
+#define		ADT7462_PIN26_VOLT_INPUT	0x08
+#define		ADT7462_PIN25_VOLT_INPUT	0x20
+#define		ADT7462_PIN28_SHIFT		6	/* cfg3 */
+#define		ADT7462_PIN28_VOLT		0x5
+
+#define ADT7462_REG_ALARM1			0xB8
+#define 	ADT7462_LT_ALARM		0x02
+#define		ADT7462_R1T_ALARM		0x04
+#define		ADT7462_R2T_ALARM		0x08
+#define		ADT7462_R3T_ALARM		0x10
+#define ADT7462_REG_ALARM2			0xBB
+#define		ADT7462_V0_ALARM		0x01
+#define		ADT7462_V1_ALARM		0x02
+#define		ADT7462_V2_ALARM		0x04
+#define		ADT7462_V3_ALARM		0x08
+#define		ADT7462_V4_ALARM		0x10
+#define		ADT7462_V5_ALARM		0x20
+#define		ADT7462_V6_ALARM		0x40
+#define		ADT7462_V7_ALARM		0x80
+#define ADT7462_REG_ALARM3			0xBC
+#define		ADT7462_V8_ALARM		0x08
+#define		ADT7462_V9_ALARM		0x10
+#define		ADT7462_V10_ALARM		0x20
+#define		ADT7462_V11_ALARM		0x40
+#define		ADT7462_V12_ALARM		0x80
+#define ADT7462_REG_ALARM4			0xBD
+#define		ADT7462_F0_ALARM		0x01
+#define		ADT7462_F1_ALARM		0x02
+#define		ADT7462_F2_ALARM		0x04
+#define		ADT7462_F3_ALARM		0x08
+#define		ADT7462_F4_ALARM		0x10
+#define		ADT7462_F5_ALARM		0x20
+#define		ADT7462_F6_ALARM		0x40
+#define		ADT7462_F7_ALARM		0x80
+#define ADT7462_ALARM1				0x0000
+#define ADT7462_ALARM2				0x0100
+#define ADT7462_ALARM3				0x0200
+#define ADT7462_ALARM4				0x0300
+#define ADT7462_ALARM_REG_SHIFT			8
+#define ADT7462_ALARM_FLAG_MASK			0x0F
+
+#define ADT7462_TEMP_COUNT		4
+#define ADT7462_TEMP_REG(x)		(ADT7462_REG_TEMP_BASE_ADDR + (x * 2))
+#define ADT7462_TEMP_MIN_REG(x) 	(ADT7462_REG_MIN_TEMP_BASE_ADDR + (x))
+#define ADT7462_TEMP_MAX_REG(x) 	(ADT7462_REG_MAX_TEMP_BASE_ADDR + (x))
+#define TEMP_FRAC_OFFSET		6
+
+#define ADT7462_FAN_COUNT		8
+#define ADT7462_REG_FAN_MIN(x)		(ADT7462_REG_FAN_MIN_BASE_ADDR + (x))
+
+#define ADT7462_PWM_COUNT		4
+#define ADT7462_REG_PWM(x)		(ADT7462_REG_PWM_BASE_ADDR + (x))
+#define ADT7462_REG_PWM_MIN(x)		(ADT7462_REG_PWM_MIN_BASE_ADDR + (x))
+#define ADT7462_REG_PWM_TMIN(x)		\
+	(ADT7462_REG_PWM_TEMP_MIN_BASE_ADDR + (x))
+#define ADT7462_REG_PWM_TRANGE(x)	\
+	(ADT7462_REG_PWM_TEMP_RANGE_BASE_ADDR + (x))
+
+#define ADT7462_PIN_CFG_REG_COUNT	4
+#define ADT7462_REG_PIN_CFG(x)		(ADT7462_REG_PIN_CFG_BASE_ADDR + (x))
+#define ADT7462_REG_PWM_CFG(x)		(ADT7462_REG_PWM_CFG_BASE_ADDR + (x))
+
+#define ADT7462_ALARM_REG_COUNT		4
+
+/*
+ * The chip can measure 13 different voltage sources:
+ *
+ * 1. +12V1 (pin 7)
+ * 2. Vccp1/+2.5V/+1.8V/+1.5V (pin 23)
+ * 3. +12V3 (pin 22)
+ * 4. +5V (pin 21)
+ * 5. +1.25V/+0.9V (pin 19)
+ * 6. +2.5V/+1.8V (pin 15)
+ * 7. +3.3v (pin 13)
+ * 8. +12V2 (pin 8)
+ * 9. Vbatt/FSB_Vtt (pin 26)
+ * A. +3.3V/+1.2V1 (pin 25)
+ * B. Vccp2/+2.5V/+1.8V/+1.5V (pin 24)
+ * C. +1.5V ICH (only if BOTH pin 28/29 are set to +1.5V)
+ * D. +1.5V 3GPIO (only if BOTH pin 28/29 are set to +1.5V)
+ *
+ * Each of these 13 has a factor to convert raw to voltage.  Even better,
+ * the pins can be connected to other sensors (tach/gpio/hot/etc), which
+ * makes the bookkeeping tricky.
+ *
+ * Some, but not all, of these voltages have low/high limits.
+ */
+#define ADT7462_VOLT_COUNT	12
+
+#define ADT7462_VENDOR		0x41
+#define ADT7462_DEVICE		0x62
+/* datasheet only mentions a revision 4 */
+#define ADT7462_REVISION	0x04
+
+/* How often do we reread sensors values? (In jiffies) */
+#define SENSOR_REFRESH_INTERVAL	(2 * HZ)
+
+/* How often do we reread sensor limit values? (In jiffies) */
+#define LIMIT_REFRESH_INTERVAL	(60 * HZ)
+
+/* datasheet says to divide this number by the fan reading to get fan rpm */
+#define FAN_PERIOD_TO_RPM(x)	((90000 * 60) / (x))
+#define FAN_RPM_TO_PERIOD	FAN_PERIOD_TO_RPM
+#define FAN_PERIOD_INVALID	65535
+#define FAN_DATA_VALID(x)	((x) && (x) != FAN_PERIOD_INVALID)
+
+#define MASK_AND_SHIFT(value, prefix)	\
+	(((value) & prefix##_MASK) >> prefix##_SHIFT)
+
+#define ROUND_DIV(x, divisor)  (((x) + ((divisor) / 2)) / (divisor))
+
+struct adt7462_data {
+	struct device		*hwmon_dev;
+	struct attribute_group	attrs;
+	struct mutex		lock;
+	char			sensors_valid;
+	char			limits_valid;
+	unsigned long		sensors_last_updated;	/* In jiffies */
+	unsigned long		limits_last_updated;	/* In jiffies */
+
+	u8			temp[ADT7462_TEMP_COUNT];
+				/* bits 6-7 are quarter pieces of temp */
+	u8			temp_frac[ADT7462_TEMP_COUNT];
+	u8			temp_min[ADT7462_TEMP_COUNT];
+	u8			temp_max[ADT7462_TEMP_COUNT];
+	u16			fan[ADT7462_FAN_COUNT];
+	u8			fan_enabled;
+	u8			fan_min[ADT7462_FAN_COUNT];
+	u8			cfg2;
+	u8			pwm[ADT7462_PWM_COUNT];
+	u8			pin_cfg[ADT7462_PIN_CFG_REG_COUNT];
+	u8			voltages[ADT7462_VOLT_COUNT];
+	u8			volt_max[ADT7462_VOLT_COUNT];
+	u8			volt_min[ADT7462_VOLT_COUNT];
+	u8			pwm_min[ADT7462_PWM_COUNT];
+	u8			pwm_tmin[ADT7462_PWM_COUNT];
+	u8			pwm_trange[ADT7462_PWM_COUNT];
+	u8			pwm_max;	/* only one per chip */
+	u8			pwm_cfg[ADT7462_PWM_COUNT];
+	u8			alarms[ADT7462_ALARM_REG_COUNT];
+};
+
+static int adt7462_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int adt7462_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
+static int adt7462_remove(struct i2c_client *client);
+
+static const struct i2c_device_id adt7462_id[] = {
+	{ "adt7462", adt7462 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adt7462_id);
+
+static struct i2c_driver adt7462_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "adt7462",
+	},
+	.probe		= adt7462_probe,
+	.remove		= adt7462_remove,
+	.id_table	= adt7462_id,
+	.detect		= adt7462_detect,
+	.address_data	= &addr_data,
+};
+
+/*
+ * 16-bit registers on the ADT7462 are low-byte first.  The data sheet says
+ * that the low byte must be read before the high byte.
+ */
+static inline int adt7462_read_word_data(struct i2c_client *client, u8 reg)
+{
+	u16 foo;
+	foo = i2c_smbus_read_byte_data(client, reg);
+	foo |= ((u16)i2c_smbus_read_byte_data(client, reg + 1) << 8);
+	return foo;
+}
+
+/* For some reason these registers are not contiguous. */
+static int ADT7462_REG_FAN(int fan)
+{
+	if (fan < 4)
+		return ADT7462_REG_FAN_BASE_ADDR + (2 * fan);
+	return ADT7462_REG_FAN2_BASE_ADDR + (2 * (fan - 4));
+}
+
+/* Voltage registers are scattered everywhere */
+static int ADT7462_REG_VOLT_MAX(struct adt7462_data *data, int which)
+{
+	switch (which) {
+	case 0:
+		if (!(data->pin_cfg[0] & ADT7462_PIN7_INPUT))
+			return 0x7C;
+		break;
+	case 1:
+		return 0x69;
+	case 2:
+		if (!(data->pin_cfg[1] & ADT7462_PIN22_INPUT))
+			return 0x7F;
+		break;
+	case 3:
+		if (!(data->pin_cfg[1] & ADT7462_PIN21_INPUT))
+			return 0x7E;
+		break;
+	case 4:
+		if (!(data->pin_cfg[0] & ADT7462_DIODE3_INPUT))
+			return 0x4B;
+		break;
+	case 5:
+		if (!(data->pin_cfg[0] & ADT7462_DIODE1_INPUT))
+			return 0x49;
+		break;
+	case 6:
+		if (!(data->pin_cfg[1] & ADT7462_PIN13_INPUT))
+			return 0x68;
+		break;
+	case 7:
+		if (!(data->pin_cfg[1] & ADT7462_PIN8_INPUT))
+			return 0x7D;
+		break;
+	case 8:
+		if (!(data->pin_cfg[2] & ADT7462_PIN26_VOLT_INPUT))
+			return 0x6C;
+		break;
+	case 9:
+		if (!(data->pin_cfg[2] & ADT7462_PIN25_VOLT_INPUT))
+			return 0x6B;
+		break;
+	case 10:
+		return 0x6A;
+	case 11:
+		if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT ==
+					ADT7462_PIN28_VOLT &&
+		    !(data->pin_cfg[0] & ADT7462_VID_INPUT))
+			return 0x50;
+		break;
+	case 12:
+		if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT ==
+					ADT7462_PIN28_VOLT &&
+		    !(data->pin_cfg[0] & ADT7462_VID_INPUT))
+			return 0x4C;
+		break;
+	}
+	return -ENODEV;
+}
+
+static int ADT7462_REG_VOLT_MIN(struct adt7462_data *data, int which)
+{
+	switch (which) {
+	case 0:
+		if (!(data->pin_cfg[0] & ADT7462_PIN7_INPUT))
+			return 0x6D;
+		break;
+	case 1:
+		return 0x72;
+	case 2:
+		if (!(data->pin_cfg[1] & ADT7462_PIN22_INPUT))
+			return 0x6F;
+		break;
+	case 3:
+		if (!(data->pin_cfg[1] & ADT7462_PIN21_INPUT))
+			return 0x71;
+		break;
+	case 4:
+		if (!(data->pin_cfg[0] & ADT7462_DIODE3_INPUT))
+			return 0x47;
+		break;
+	case 5:
+		if (!(data->pin_cfg[0] & ADT7462_DIODE1_INPUT))
+			return 0x45;
+		break;
+	case 6:
+		if (!(data->pin_cfg[1] & ADT7462_PIN13_INPUT))
+			return 0x70;
+		break;
+	case 7:
+		if (!(data->pin_cfg[1] & ADT7462_PIN8_INPUT))
+			return 0x6E;
+		break;
+	case 8:
+		if (!(data->pin_cfg[2] & ADT7462_PIN26_VOLT_INPUT))
+			return 0x75;
+		break;
+	case 9:
+		if (!(data->pin_cfg[2] & ADT7462_PIN25_VOLT_INPUT))
+			return 0x74;
+		break;
+	case 10:
+		return 0x73;
+	case 11:
+		if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT ==
+					ADT7462_PIN28_VOLT &&
+		    !(data->pin_cfg[0] & ADT7462_VID_INPUT))
+			return 0x76;
+		break;
+	case 12:
+		if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT ==
+					ADT7462_PIN28_VOLT &&
+		    !(data->pin_cfg[0] & ADT7462_VID_INPUT))
+			return 0x77;
+		break;
+	}
+	return -ENODEV;
+}
+
+static int ADT7462_REG_VOLT(struct adt7462_data *data, int which)
+{
+	switch (which) {
+	case 0:
+		if (!(data->pin_cfg[0] & ADT7462_PIN7_INPUT))
+			return 0xA3;
+		break;
+	case 1:
+		return 0x90;
+	case 2:
+		if (!(data->pin_cfg[1] & ADT7462_PIN22_INPUT))
+			return 0xA9;
+		break;
+	case 3:
+		if (!(data->pin_cfg[1] & ADT7462_PIN21_INPUT))
+			return 0xA7;
+		break;
+	case 4:
+		if (!(data->pin_cfg[0] & ADT7462_DIODE3_INPUT))
+			return 0x8F;
+		break;
+	case 5:
+		if (!(data->pin_cfg[0] & ADT7462_DIODE1_INPUT))
+			return 0x8B;
+		break;
+	case 6:
+		if (!(data->pin_cfg[1] & ADT7462_PIN13_INPUT))
+			return 0x96;
+		break;
+	case 7:
+		if (!(data->pin_cfg[1] & ADT7462_PIN8_INPUT))
+			return 0xA5;
+		break;
+	case 8:
+		if (!(data->pin_cfg[2] & ADT7462_PIN26_VOLT_INPUT))
+			return 0x93;
+		break;
+	case 9:
+		if (!(data->pin_cfg[2] & ADT7462_PIN25_VOLT_INPUT))
+			return 0x92;
+		break;
+	case 10:
+		return 0x91;
+	case 11:
+		if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT ==
+					ADT7462_PIN28_VOLT &&
+		    !(data->pin_cfg[0] & ADT7462_VID_INPUT))
+			return 0x94;
+		break;
+	case 12:
+		if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT ==
+					ADT7462_PIN28_VOLT &&
+		    !(data->pin_cfg[0] & ADT7462_VID_INPUT))
+			return 0x95;
+		break;
+	}
+	return -ENODEV;
+}
+
+/* Provide labels for sysfs */
+static const char *voltage_label(struct adt7462_data *data, int which)
+{
+	switch (which) {
+	case 0:
+		if (!(data->pin_cfg[0] & ADT7462_PIN7_INPUT))
+			return "+12V1";
+		break;
+	case 1:
+		switch (MASK_AND_SHIFT(data->pin_cfg[1], ADT7462_PIN23)) {
+		case 0:
+			return "Vccp1";
+		case 1:
+			return "+2.5V";
+		case 2:
+			return "+1.8V";
+		case 3:
+			return "+1.5V";
+		}
+	case 2:
+		if (!(data->pin_cfg[1] & ADT7462_PIN22_INPUT))
+			return "+12V3";
+		break;
+	case 3:
+		if (!(data->pin_cfg[1] & ADT7462_PIN21_INPUT))
+			return "+5V";
+		break;
+	case 4:
+		if (!(data->pin_cfg[0] & ADT7462_DIODE3_INPUT)) {
+			if (data->pin_cfg[1] & ADT7462_PIN19_INPUT)
+				return "+0.9V";
+			return "+1.25V";
+		}
+		break;
+	case 5:
+		if (!(data->pin_cfg[0] & ADT7462_DIODE1_INPUT)) {
+			if (data->pin_cfg[1] & ADT7462_PIN19_INPUT)
+				return "+1.8V";
+			return "+2.5V";
+		}
+		break;
+	case 6:
+		if (!(data->pin_cfg[1] & ADT7462_PIN13_INPUT))
+			return "+3.3V";
+		break;
+	case 7:
+		if (!(data->pin_cfg[1] & ADT7462_PIN8_INPUT))
+			return "+12V2";
+		break;
+	case 8:
+		switch (MASK_AND_SHIFT(data->pin_cfg[2], ADT7462_PIN26)) {
+		case 0:
+			return "Vbatt";
+		case 1:
+			return "FSB_Vtt";
+		}
+		break;
+	case 9:
+		switch (MASK_AND_SHIFT(data->pin_cfg[2], ADT7462_PIN25)) {
+		case 0:
+			return "+3.3V";
+		case 1:
+			return "+1.2V1";
+		}
+		break;
+	case 10:
+		switch (MASK_AND_SHIFT(data->pin_cfg[2], ADT7462_PIN24)) {
+		case 0:
+			return "Vccp2";
+		case 1:
+			return "+2.5V";
+		case 2:
+			return "+1.8V";
+		case 3:
+			return "+1.5";
+		}
+	case 11:
+		if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT ==
+					ADT7462_PIN28_VOLT &&
+		    !(data->pin_cfg[0] & ADT7462_VID_INPUT))
+			return "+1.5V ICH";
+		break;
+	case 12:
+		if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT ==
+					ADT7462_PIN28_VOLT &&
+		    !(data->pin_cfg[0] & ADT7462_VID_INPUT))
+			return "+1.5V 3GPIO";
+		break;
+	}
+	return "N/A";
+}
+
+/* Multipliers are actually in uV, not mV. */
+static int voltage_multiplier(struct adt7462_data *data, int which)
+{
+	switch (which) {
+	case 0:
+		if (!(data->pin_cfg[0] & ADT7462_PIN7_INPUT))
+			return 62500;
+		break;
+	case 1:
+		switch (MASK_AND_SHIFT(data->pin_cfg[1], ADT7462_PIN23)) {
+		case 0:
+			if (data->pin_cfg[0] & ADT7462_VID_INPUT)
+				return 12500;
+			return 6250;
+		case 1:
+			return 13000;
+		case 2:
+			return 9400;
+		case 3:
+			return 7800;
+		}
+	case 2:
+		if (!(data->pin_cfg[1] & ADT7462_PIN22_INPUT))
+			return 62500;
+		break;
+	case 3:
+		if (!(data->pin_cfg[1] & ADT7462_PIN21_INPUT))
+			return 26000;
+		break;
+	case 4:
+		if (!(data->pin_cfg[0] & ADT7462_DIODE3_INPUT)) {
+			if (data->pin_cfg[1] & ADT7462_PIN19_INPUT)
+				return 4690;
+			return 6500;
+		}
+		break;
+	case 5:
+		if (!(data->pin_cfg[0] & ADT7462_DIODE1_INPUT)) {
+			if (data->pin_cfg[1] & ADT7462_PIN15_INPUT)
+				return 9400;
+			return 13000;
+		}
+		break;
+	case 6:
+		if (!(data->pin_cfg[1] & ADT7462_PIN13_INPUT))
+			return 17200;
+		break;
+	case 7:
+		if (!(data->pin_cfg[1] & ADT7462_PIN8_INPUT))
+			return 62500;
+		break;
+	case 8:
+		switch (MASK_AND_SHIFT(data->pin_cfg[2], ADT7462_PIN26)) {
+		case 0:
+			return 15600;
+		case 1:
+			return 6250;
+		}
+		break;
+	case 9:
+		switch (MASK_AND_SHIFT(data->pin_cfg[2], ADT7462_PIN25)) {
+		case 0:
+			return 17200;
+		case 1:
+			return 6250;
+		}
+		break;
+	case 10:
+		switch (MASK_AND_SHIFT(data->pin_cfg[2], ADT7462_PIN24)) {
+		case 0:
+			return 6250;
+		case 1:
+			return 13000;
+		case 2:
+			return 9400;
+		case 3:
+			return 7800;
+		}
+	case 11:
+	case 12:
+		if (data->pin_cfg[3] >> ADT7462_PIN28_SHIFT ==
+					ADT7462_PIN28_VOLT &&
+		    !(data->pin_cfg[0] & ADT7462_VID_INPUT))
+			return 7800;
+	}
+	return 0;
+}
+
+static int temp_enabled(struct adt7462_data *data, int which)
+{
+	switch (which) {
+	case 0:
+	case 2:
+		return 1;
+	case 1:
+		if (data->pin_cfg[0] & ADT7462_DIODE1_INPUT)
+			return 1;
+		break;
+	case 3:
+		if (data->pin_cfg[0] & ADT7462_DIODE3_INPUT)
+			return 1;
+		break;
+	}
+	return 0;
+}
+
+static const char *temp_label(struct adt7462_data *data, int which)
+{
+	switch (which) {
+	case 0:
+		return "local";
+	case 1:
+		if (data->pin_cfg[0] & ADT7462_DIODE1_INPUT)
+			return "remote1";
+		break;
+	case 2:
+		return "remote2";
+	case 3:
+		if (data->pin_cfg[0] & ADT7462_DIODE3_INPUT)
+			return "remote3";
+		break;
+	}
+	return "N/A";
+}
+
+/* Map Trange register values to mC */
+#define NUM_TRANGE_VALUES	16
+static const int trange_values[NUM_TRANGE_VALUES] = {
+	2000,
+	2500,
+	3300,
+	4000,
+	5000,
+	6700,
+	8000,
+	10000,
+	13300,
+	16000,
+	20000,
+	26700,
+	32000,
+	40000,
+	53300,
+	80000
+};
+
+static int find_trange_value(int trange)
+{
+	int i;
+
+	for (i = 0; i < NUM_TRANGE_VALUES; i++)
+		if (trange_values[i] == trange)
+			return i;
+
+	return -ENODEV;
+}
+
+static struct adt7462_data *adt7462_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7462_data *data = i2c_get_clientdata(client);
+	unsigned long local_jiffies = jiffies;
+	int i;
+
+	mutex_lock(&data->lock);
+	if (time_before(local_jiffies, data->sensors_last_updated +
+		SENSOR_REFRESH_INTERVAL)
+		&& data->sensors_valid)
+		goto no_sensor_update;
+
+	for (i = 0; i < ADT7462_TEMP_COUNT; i++) {
+		/*
+		 * Reading the fractional register locks the integral
+		 * register until both have been read.
+		 */
+		data->temp_frac[i] = i2c_smbus_read_byte_data(client,
+						ADT7462_TEMP_REG(i));
+		data->temp[i] = i2c_smbus_read_byte_data(client,
+						ADT7462_TEMP_REG(i) + 1);
+	}
+
+	for (i = 0; i < ADT7462_FAN_COUNT; i++)
+		data->fan[i] = adt7462_read_word_data(client,
+						ADT7462_REG_FAN(i));
+
+	data->fan_enabled = i2c_smbus_read_byte_data(client,
+					ADT7462_REG_FAN_ENABLE);
+
+	for (i = 0; i < ADT7462_PWM_COUNT; i++)
+		data->pwm[i] = i2c_smbus_read_byte_data(client,
+						ADT7462_REG_PWM(i));
+
+	for (i = 0; i < ADT7462_PIN_CFG_REG_COUNT; i++)
+		data->pin_cfg[i] = i2c_smbus_read_byte_data(client,
+				ADT7462_REG_PIN_CFG(i));
+
+	for (i = 0; i < ADT7462_VOLT_COUNT; i++) {
+		int reg = ADT7462_REG_VOLT(data, i);
+		if (!reg)
+			data->voltages[i] = 0;
+		else
+			data->voltages[i] = i2c_smbus_read_byte_data(client,
+								     reg);
+	}
+
+	data->alarms[0] = i2c_smbus_read_byte_data(client, ADT7462_REG_ALARM1);
+	data->alarms[1] = i2c_smbus_read_byte_data(client, ADT7462_REG_ALARM2);
+	data->alarms[2] = i2c_smbus_read_byte_data(client, ADT7462_REG_ALARM3);
+	data->alarms[3] = i2c_smbus_read_byte_data(client, ADT7462_REG_ALARM4);
+
+	data->sensors_last_updated = local_jiffies;
+	data->sensors_valid = 1;
+
+no_sensor_update:
+	if (time_before(local_jiffies, data->limits_last_updated +
+		LIMIT_REFRESH_INTERVAL)
+		&& data->limits_valid)
+		goto out;
+
+	for (i = 0; i < ADT7462_TEMP_COUNT; i++) {
+		data->temp_min[i] = i2c_smbus_read_byte_data(client,
+						ADT7462_TEMP_MIN_REG(i));
+		data->temp_max[i] = i2c_smbus_read_byte_data(client,
+						ADT7462_TEMP_MAX_REG(i));
+	}
+
+	for (i = 0; i < ADT7462_FAN_COUNT; i++)
+		data->fan_min[i] = i2c_smbus_read_byte_data(client,
+						ADT7462_REG_FAN_MIN(i));
+
+	for (i = 0; i < ADT7462_VOLT_COUNT; i++) {
+		int reg = ADT7462_REG_VOLT_MAX(data, i);
+		data->volt_max[i] =
+			(reg ? i2c_smbus_read_byte_data(client, reg) : 0);
+
+		reg = ADT7462_REG_VOLT_MIN(data, i);
+		data->volt_min[i] =
+			(reg ? i2c_smbus_read_byte_data(client, reg) : 0);
+	}
+
+	for (i = 0; i < ADT7462_PWM_COUNT; i++) {
+		data->pwm_min[i] = i2c_smbus_read_byte_data(client,
+						ADT7462_REG_PWM_MIN(i));
+		data->pwm_tmin[i] = i2c_smbus_read_byte_data(client,
+						ADT7462_REG_PWM_TMIN(i));
+		data->pwm_trange[i] = i2c_smbus_read_byte_data(client,
+						ADT7462_REG_PWM_TRANGE(i));
+		data->pwm_cfg[i] = i2c_smbus_read_byte_data(client,
+						ADT7462_REG_PWM_CFG(i));
+	}
+
+	data->pwm_max = i2c_smbus_read_byte_data(client, ADT7462_REG_PWM_MAX);
+
+	data->cfg2 = i2c_smbus_read_byte_data(client, ADT7462_REG_CFG2);
+
+	data->limits_last_updated = local_jiffies;
+	data->limits_valid = 1;
+
+out:
+	mutex_unlock(&data->lock);
+	return data;
+}
+
+static ssize_t show_temp_min(struct device *dev,
+			     struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7462_data *data = adt7462_update_device(dev);
+
+	if (!temp_enabled(data, attr->index))
+		return sprintf(buf, "0\n");
+
+	return sprintf(buf, "%d\n", 1000 * (data->temp_min[attr->index] - 64));
+}
+
+static ssize_t set_temp_min(struct device *dev,
+			    struct device_attribute *devattr,
+			    const char *buf,
+			    size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7462_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp) || !temp_enabled(data, attr->index))
+		return -EINVAL;
+
+	temp = ROUND_DIV(temp, 1000) + 64;
+	temp = SENSORS_LIMIT(temp, 0, 255);
+
+	mutex_lock(&data->lock);
+	data->temp_min[attr->index] = temp;
+	i2c_smbus_write_byte_data(client, ADT7462_TEMP_MIN_REG(attr->index),
+				  temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_temp_max(struct device *dev,
+			     struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7462_data *data = adt7462_update_device(dev);
+
+	if (!temp_enabled(data, attr->index))
+		return sprintf(buf, "0\n");
+
+	return sprintf(buf, "%d\n", 1000 * (data->temp_max[attr->index] - 64));
+}
+
+static ssize_t set_temp_max(struct device *dev,
+			    struct device_attribute *devattr,
+			    const char *buf,
+			    size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7462_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp) || !temp_enabled(data, attr->index))
+		return -EINVAL;
+
+	temp = ROUND_DIV(temp, 1000) + 64;
+	temp = SENSORS_LIMIT(temp, 0, 255);
+
+	mutex_lock(&data->lock);
+	data->temp_max[attr->index] = temp;
+	i2c_smbus_write_byte_data(client, ADT7462_TEMP_MAX_REG(attr->index),
+				  temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
+			 char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7462_data *data = adt7462_update_device(dev);
+	u8 frac = data->temp_frac[attr->index] >> TEMP_FRAC_OFFSET;
+
+	if (!temp_enabled(data, attr->index))
+		return sprintf(buf, "0\n");
+
+	return sprintf(buf, "%d\n", 1000 * (data->temp[attr->index] - 64) +
+				     250 * frac);
+}
+
+static ssize_t show_temp_label(struct device *dev,
+			       struct device_attribute *devattr,
+			       char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7462_data *data = adt7462_update_device(dev);
+
+	return sprintf(buf, "%s\n", temp_label(data, attr->index));
+}
+
+static ssize_t show_volt_max(struct device *dev,
+			     struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7462_data *data = adt7462_update_device(dev);
+	int x = voltage_multiplier(data, attr->index);
+
+	x *= data->volt_max[attr->index];
+	x /= 1000; /* convert from uV to mV */
+
+	return sprintf(buf, "%d\n", x);
+}
+
+static ssize_t set_volt_max(struct device *dev,
+			    struct device_attribute *devattr,
+			    const char *buf,
+			    size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7462_data *data = i2c_get_clientdata(client);
+	int x = voltage_multiplier(data, attr->index);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp) || !x)
+		return -EINVAL;
+
+	temp *= 1000; /* convert mV to uV */
+	temp = ROUND_DIV(temp, x);
+	temp = SENSORS_LIMIT(temp, 0, 255);
+
+	mutex_lock(&data->lock);
+	data->volt_max[attr->index] = temp;
+	i2c_smbus_write_byte_data(client,
+				  ADT7462_REG_VOLT_MAX(data, attr->index),
+				  temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_volt_min(struct device *dev,
+			     struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7462_data *data = adt7462_update_device(dev);
+	int x = voltage_multiplier(data, attr->index);
+
+	x *= data->volt_min[attr->index];
+	x /= 1000; /* convert from uV to mV */
+
+	return sprintf(buf, "%d\n", x);
+}
+
+static ssize_t set_volt_min(struct device *dev,
+			    struct device_attribute *devattr,
+			    const char *buf,
+			    size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7462_data *data = i2c_get_clientdata(client);
+	int x = voltage_multiplier(data, attr->index);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp) || !x)
+		return -EINVAL;
+
+	temp *= 1000; /* convert mV to uV */
+	temp = ROUND_DIV(temp, x);
+	temp = SENSORS_LIMIT(temp, 0, 255);
+
+	mutex_lock(&data->lock);
+	data->volt_min[attr->index] = temp;
+	i2c_smbus_write_byte_data(client,
+				  ADT7462_REG_VOLT_MIN(data, attr->index),
+				  temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_voltage(struct device *dev,
+			    struct device_attribute *devattr,
+			    char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7462_data *data = adt7462_update_device(dev);
+	int x = voltage_multiplier(data, attr->index);
+
+	x *= data->voltages[attr->index];
+	x /= 1000; /* convert from uV to mV */
+
+	return sprintf(buf, "%d\n", x);
+}
+
+static ssize_t show_voltage_label(struct device *dev,
+				  struct device_attribute *devattr,
+				  char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7462_data *data = adt7462_update_device(dev);
+
+	return sprintf(buf, "%s\n", voltage_label(data, attr->index));
+}
+
+static ssize_t show_alarm(struct device *dev,
+			  struct device_attribute *devattr,
+			  char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7462_data *data = adt7462_update_device(dev);
+	int reg = attr->index >> ADT7462_ALARM_REG_SHIFT;
+	int mask = attr->index & ADT7462_ALARM_FLAG_MASK;
+
+	if (data->alarms[reg] & mask)
+		return sprintf(buf, "1\n");
+	else
+		return sprintf(buf, "0\n");
+}
+
+static int fan_enabled(struct adt7462_data *data, int fan)
+{
+	return data->fan_enabled & (1 << fan);
+}
+
+static ssize_t show_fan_min(struct device *dev,
+			    struct device_attribute *devattr,
+			    char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7462_data *data = adt7462_update_device(dev);
+	u16 temp;
+
+	/* Only the MSB of the min fan period is stored... */
+	temp = data->fan_min[attr->index];
+	temp <<= 8;
+
+	if (!fan_enabled(data, attr->index) ||
+	    !FAN_DATA_VALID(temp))
+		return sprintf(buf, "0\n");
+
+	return sprintf(buf, "%d\n", FAN_PERIOD_TO_RPM(temp));
+}
+
+static ssize_t set_fan_min(struct device *dev,
+			   struct device_attribute *devattr,
+			   const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7462_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp) || !temp ||
+	    !fan_enabled(data, attr->index))
+		return -EINVAL;
+
+	temp = FAN_RPM_TO_PERIOD(temp);
+	temp >>= 8;
+	temp = SENSORS_LIMIT(temp, 1, 255);
+
+	mutex_lock(&data->lock);
+	data->fan_min[attr->index] = temp;
+	i2c_smbus_write_byte_data(client, ADT7462_REG_FAN_MIN(attr->index),
+				  temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
+			char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7462_data *data = adt7462_update_device(dev);
+
+	if (!fan_enabled(data, attr->index) ||
+	    !FAN_DATA_VALID(data->fan[attr->index]))
+		return sprintf(buf, "0\n");
+
+	return sprintf(buf, "%d\n",
+		       FAN_PERIOD_TO_RPM(data->fan[attr->index]));
+}
+
+static ssize_t show_force_pwm_max(struct device *dev,
+				  struct device_attribute *devattr,
+				  char *buf)
+{
+	struct adt7462_data *data = adt7462_update_device(dev);
+	return sprintf(buf, "%d\n", (data->cfg2 & ADT7462_FSPD_MASK ? 1 : 0));
+}
+
+static ssize_t set_force_pwm_max(struct device *dev,
+				 struct device_attribute *devattr,
+				 const char *buf,
+				 size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7462_data *data = i2c_get_clientdata(client);
+	long temp;
+	u8 reg;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	mutex_lock(&data->lock);
+	reg = i2c_smbus_read_byte_data(client, ADT7462_REG_CFG2);
+	if (temp)
+		reg |= ADT7462_FSPD_MASK;
+	else
+		reg &= ~ADT7462_FSPD_MASK;
+	data->cfg2 = reg;
+	i2c_smbus_write_byte_data(client, ADT7462_REG_CFG2, reg);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr,
+			char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7462_data *data = adt7462_update_device(dev);
+	return sprintf(buf, "%d\n", data->pwm[attr->index]);
+}
+
+static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr,
+			const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7462_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	temp = SENSORS_LIMIT(temp, 0, 255);
+
+	mutex_lock(&data->lock);
+	data->pwm[attr->index] = temp;
+	i2c_smbus_write_byte_data(client, ADT7462_REG_PWM(attr->index), temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_pwm_max(struct device *dev,
+			    struct device_attribute *devattr,
+			    char *buf)
+{
+	struct adt7462_data *data = adt7462_update_device(dev);
+	return sprintf(buf, "%d\n", data->pwm_max);
+}
+
+static ssize_t set_pwm_max(struct device *dev,
+			   struct device_attribute *devattr,
+			   const char *buf,
+			   size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7462_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	temp = SENSORS_LIMIT(temp, 0, 255);
+
+	mutex_lock(&data->lock);
+	data->pwm_max = temp;
+	i2c_smbus_write_byte_data(client, ADT7462_REG_PWM_MAX, temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_pwm_min(struct device *dev,
+			    struct device_attribute *devattr,
+			    char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7462_data *data = adt7462_update_device(dev);
+	return sprintf(buf, "%d\n", data->pwm_min[attr->index]);
+}
+
+static ssize_t set_pwm_min(struct device *dev,
+			   struct device_attribute *devattr,
+			   const char *buf,
+			   size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7462_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	temp = SENSORS_LIMIT(temp, 0, 255);
+
+	mutex_lock(&data->lock);
+	data->pwm_min[attr->index] = temp;
+	i2c_smbus_write_byte_data(client, ADT7462_REG_PWM_MIN(attr->index),
+				  temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_pwm_hyst(struct device *dev,
+			     struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7462_data *data = adt7462_update_device(dev);
+	return sprintf(buf, "%d\n", 1000 *
+		      (data->pwm_trange[attr->index] & ADT7462_PWM_HYST_MASK));
+}
+
+static ssize_t set_pwm_hyst(struct device *dev,
+			    struct device_attribute *devattr,
+			    const char *buf,
+			    size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7462_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	temp = ROUND_DIV(temp, 1000);
+	temp = SENSORS_LIMIT(temp, 0, 15);
+
+	/* package things up */
+	temp &= ADT7462_PWM_HYST_MASK;
+	temp |= data->pwm_trange[attr->index] & ADT7462_PWM_RANGE_MASK;
+
+	mutex_lock(&data->lock);
+	data->pwm_trange[attr->index] = temp;
+	i2c_smbus_write_byte_data(client, ADT7462_REG_PWM_TRANGE(attr->index),
+				  temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_pwm_tmax(struct device *dev,
+			     struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7462_data *data = adt7462_update_device(dev);
+
+	/* tmax = tmin + trange */
+	int trange = trange_values[data->pwm_trange[attr->index] >>
+				   ADT7462_PWM_RANGE_SHIFT];
+	int tmin = (data->pwm_tmin[attr->index] - 64) * 1000;
+
+	return sprintf(buf, "%d\n", tmin + trange);
+}
+
+static ssize_t set_pwm_tmax(struct device *dev,
+			    struct device_attribute *devattr,
+			    const char *buf,
+			    size_t count)
+{
+	int temp;
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7462_data *data = i2c_get_clientdata(client);
+	int tmin, trange_value;
+	long trange;
+
+	if (strict_strtol(buf, 10, &trange))
+		return -EINVAL;
+
+	/* trange = tmax - tmin */
+	tmin = (data->pwm_tmin[attr->index] - 64) * 1000;
+	trange_value = find_trange_value(trange - tmin);
+
+	if (trange_value < 0)
+		return -EINVAL;
+
+	temp = trange_value << ADT7462_PWM_RANGE_SHIFT;
+	temp |= data->pwm_trange[attr->index] & ADT7462_PWM_HYST_MASK;
+
+	mutex_lock(&data->lock);
+	data->pwm_trange[attr->index] = temp;
+	i2c_smbus_write_byte_data(client, ADT7462_REG_PWM_TRANGE(attr->index),
+				  temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_pwm_tmin(struct device *dev,
+			     struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7462_data *data = adt7462_update_device(dev);
+	return sprintf(buf, "%d\n", 1000 * (data->pwm_tmin[attr->index] - 64));
+}
+
+static ssize_t set_pwm_tmin(struct device *dev,
+			    struct device_attribute *devattr,
+			    const char *buf,
+			    size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7462_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	temp = ROUND_DIV(temp, 1000) + 64;
+	temp = SENSORS_LIMIT(temp, 0, 255);
+
+	mutex_lock(&data->lock);
+	data->pwm_tmin[attr->index] = temp;
+	i2c_smbus_write_byte_data(client, ADT7462_REG_PWM_TMIN(attr->index),
+				  temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_pwm_auto(struct device *dev,
+			     struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7462_data *data = adt7462_update_device(dev);
+	int cfg = data->pwm_cfg[attr->index] >> ADT7462_PWM_CHANNEL_SHIFT;
+
+	switch (cfg) {
+	case 4: /* off */
+		return sprintf(buf, "0\n");
+	case 7: /* manual */
+		return sprintf(buf, "1\n");
+	default: /* automatic */
+		return sprintf(buf, "2\n");
+	}
+}
+
+static void set_pwm_channel(struct i2c_client *client,
+			    struct adt7462_data *data,
+			    int which,
+			    int value)
+{
+	int temp = data->pwm_cfg[which] & ~ADT7462_PWM_CHANNEL_MASK;
+	temp |= value << ADT7462_PWM_CHANNEL_SHIFT;
+
+	mutex_lock(&data->lock);
+	data->pwm_cfg[which] = temp;
+	i2c_smbus_write_byte_data(client, ADT7462_REG_PWM_CFG(which), temp);
+	mutex_unlock(&data->lock);
+}
+
+static ssize_t set_pwm_auto(struct device *dev,
+			    struct device_attribute *devattr,
+			    const char *buf,
+			    size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7462_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	switch (temp) {
+	case 0: /* off */
+		set_pwm_channel(client, data, attr->index, 4);
+		return count;
+	case 1: /* manual */
+		set_pwm_channel(client, data, attr->index, 7);
+		return count;
+	default:
+		return -EINVAL;
+	}
+}
+
+static ssize_t show_pwm_auto_temp(struct device *dev,
+				  struct device_attribute *devattr,
+				  char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7462_data *data = adt7462_update_device(dev);
+	int channel = data->pwm_cfg[attr->index] >> ADT7462_PWM_CHANNEL_SHIFT;
+
+	switch (channel) {
+	case 0: /* temp[1234] only */
+	case 1:
+	case 2:
+	case 3:
+		return sprintf(buf, "%d\n", (1 << channel));
+	case 5: /* temp1 & temp4  */
+		return sprintf(buf, "9\n");
+	case 6:
+		return sprintf(buf, "15\n");
+	default:
+		return sprintf(buf, "0\n");
+	}
+}
+
+static int cvt_auto_temp(int input)
+{
+	if (input == 0xF)
+		return 6;
+	if (input == 0x9)
+		return 5;
+	if (input < 1 || !is_power_of_2(input))
+		return -EINVAL;
+	return ilog2(input);
+}
+
+static ssize_t set_pwm_auto_temp(struct device *dev,
+				 struct device_attribute *devattr,
+				 const char *buf,
+				 size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7462_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	temp = cvt_auto_temp(temp);
+	if (temp < 0)
+		return temp;
+
+	set_pwm_channel(client, data, attr->index, temp);
+
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max,
+		    set_temp_max, 0);
+static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_max,
+		    set_temp_max, 1);
+static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_temp_max,
+		    set_temp_max, 2);
+static SENSOR_DEVICE_ATTR(temp4_max, S_IWUSR | S_IRUGO, show_temp_max,
+		    set_temp_max, 3);
+
+static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_min,
+		    set_temp_min, 0);
+static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_min,
+		    set_temp_min, 1);
+static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO, show_temp_min,
+		    set_temp_min, 2);
+static SENSOR_DEVICE_ATTR(temp4_min, S_IWUSR | S_IRUGO, show_temp_min,
+		    set_temp_min, 3);
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 3);
+
+static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, show_temp_label, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp2_label, S_IRUGO, show_temp_label, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp3_label, S_IRUGO, show_temp_label, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp4_label, S_IRUGO, show_temp_label, NULL, 3);
+
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM1 | ADT7462_LT_ALARM);
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM1 | ADT7462_R1T_ALARM);
+static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM1 | ADT7462_R2T_ALARM);
+static SENSOR_DEVICE_ATTR(temp4_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM1 | ADT7462_R3T_ALARM);
+
+static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, show_volt_max,
+		    set_volt_max, 0);
+static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, show_volt_max,
+		    set_volt_max, 1);
+static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO, show_volt_max,
+		    set_volt_max, 2);
+static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO, show_volt_max,
+		    set_volt_max, 3);
+static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO, show_volt_max,
+		    set_volt_max, 4);
+static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO, show_volt_max,
+		    set_volt_max, 5);
+static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO, show_volt_max,
+		    set_volt_max, 6);
+static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO, show_volt_max,
+		    set_volt_max, 7);
+static SENSOR_DEVICE_ATTR(in9_max, S_IWUSR | S_IRUGO, show_volt_max,
+		    set_volt_max, 8);
+static SENSOR_DEVICE_ATTR(in10_max, S_IWUSR | S_IRUGO, show_volt_max,
+		    set_volt_max, 9);
+static SENSOR_DEVICE_ATTR(in11_max, S_IWUSR | S_IRUGO, show_volt_max,
+		    set_volt_max, 10);
+static SENSOR_DEVICE_ATTR(in12_max, S_IWUSR | S_IRUGO, show_volt_max,
+		    set_volt_max, 11);
+static SENSOR_DEVICE_ATTR(in13_max, S_IWUSR | S_IRUGO, show_volt_max,
+		    set_volt_max, 12);
+
+static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO, show_volt_min,
+		    set_volt_min, 0);
+static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, show_volt_min,
+		    set_volt_min, 1);
+static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO, show_volt_min,
+		    set_volt_min, 2);
+static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO, show_volt_min,
+		    set_volt_min, 3);
+static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO, show_volt_min,
+		    set_volt_min, 4);
+static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO, show_volt_min,
+		    set_volt_min, 5);
+static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO, show_volt_min,
+		    set_volt_min, 6);
+static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO, show_volt_min,
+		    set_volt_min, 7);
+static SENSOR_DEVICE_ATTR(in9_min, S_IWUSR | S_IRUGO, show_volt_min,
+		    set_volt_min, 8);
+static SENSOR_DEVICE_ATTR(in10_min, S_IWUSR | S_IRUGO, show_volt_min,
+		    set_volt_min, 9);
+static SENSOR_DEVICE_ATTR(in11_min, S_IWUSR | S_IRUGO, show_volt_min,
+		    set_volt_min, 10);
+static SENSOR_DEVICE_ATTR(in12_min, S_IWUSR | S_IRUGO, show_volt_min,
+		    set_volt_min, 11);
+static SENSOR_DEVICE_ATTR(in13_min, S_IWUSR | S_IRUGO, show_volt_min,
+		    set_volt_min, 12);
+
+static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_voltage, NULL, 0);
+static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_voltage, NULL, 1);
+static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_voltage, NULL, 2);
+static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_voltage, NULL, 3);
+static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_voltage, NULL, 4);
+static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_voltage, NULL, 5);
+static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_voltage, NULL, 6);
+static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_voltage, NULL, 7);
+static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, show_voltage, NULL, 8);
+static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, show_voltage, NULL, 9);
+static SENSOR_DEVICE_ATTR(in11_input, S_IRUGO, show_voltage, NULL, 10);
+static SENSOR_DEVICE_ATTR(in12_input, S_IRUGO, show_voltage, NULL, 11);
+static SENSOR_DEVICE_ATTR(in13_input, S_IRUGO, show_voltage, NULL, 12);
+
+static SENSOR_DEVICE_ATTR(in1_label, S_IRUGO, show_voltage_label, NULL, 0);
+static SENSOR_DEVICE_ATTR(in2_label, S_IRUGO, show_voltage_label, NULL, 1);
+static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, show_voltage_label, NULL, 2);
+static SENSOR_DEVICE_ATTR(in4_label, S_IRUGO, show_voltage_label, NULL, 3);
+static SENSOR_DEVICE_ATTR(in5_label, S_IRUGO, show_voltage_label, NULL, 4);
+static SENSOR_DEVICE_ATTR(in6_label, S_IRUGO, show_voltage_label, NULL, 5);
+static SENSOR_DEVICE_ATTR(in7_label, S_IRUGO, show_voltage_label, NULL, 6);
+static SENSOR_DEVICE_ATTR(in8_label, S_IRUGO, show_voltage_label, NULL, 7);
+static SENSOR_DEVICE_ATTR(in9_label, S_IRUGO, show_voltage_label, NULL, 8);
+static SENSOR_DEVICE_ATTR(in10_label, S_IRUGO, show_voltage_label, NULL, 9);
+static SENSOR_DEVICE_ATTR(in11_label, S_IRUGO, show_voltage_label, NULL, 10);
+static SENSOR_DEVICE_ATTR(in12_label, S_IRUGO, show_voltage_label, NULL, 11);
+static SENSOR_DEVICE_ATTR(in13_label, S_IRUGO, show_voltage_label, NULL, 12);
+
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM2 | ADT7462_V0_ALARM);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM2 | ADT7462_V7_ALARM);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM2 | ADT7462_V2_ALARM);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM2 | ADT7462_V6_ALARM);
+static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM2 | ADT7462_V5_ALARM);
+static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM2 | ADT7462_V4_ALARM);
+static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM2 | ADT7462_V3_ALARM);
+static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM2 | ADT7462_V1_ALARM);
+static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM3 | ADT7462_V10_ALARM);
+static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM3 | ADT7462_V9_ALARM);
+static SENSOR_DEVICE_ATTR(in11_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM3 | ADT7462_V8_ALARM);
+static SENSOR_DEVICE_ATTR(in12_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM3 | ADT7462_V11_ALARM);
+static SENSOR_DEVICE_ATTR(in13_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM3 | ADT7462_V12_ALARM);
+
+static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min,
+		    set_fan_min, 0);
+static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min,
+		    set_fan_min, 1);
+static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min,
+		    set_fan_min, 2);
+static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min,
+		    set_fan_min, 3);
+static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO, show_fan_min,
+		    set_fan_min, 4);
+static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO, show_fan_min,
+		    set_fan_min, 5);
+static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO, show_fan_min,
+		    set_fan_min, 6);
+static SENSOR_DEVICE_ATTR(fan8_min, S_IWUSR | S_IRUGO, show_fan_min,
+		    set_fan_min, 7);
+
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3);
+static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4);
+static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 5);
+static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan8_input, S_IRUGO, show_fan, NULL, 7);
+
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM4 | ADT7462_F0_ALARM);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM4 | ADT7462_F1_ALARM);
+static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM4 | ADT7462_F2_ALARM);
+static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM4 | ADT7462_F3_ALARM);
+static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM4 | ADT7462_F4_ALARM);
+static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM4 | ADT7462_F5_ALARM);
+static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM4 | ADT7462_F6_ALARM);
+static SENSOR_DEVICE_ATTR(fan8_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7462_ALARM4 | ADT7462_F7_ALARM);
+
+static SENSOR_DEVICE_ATTR(force_pwm_max, S_IWUSR | S_IRUGO,
+		    show_force_pwm_max, set_force_pwm_max, 0);
+
+static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0);
+static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1);
+static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2);
+static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 3);
+
+static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO,
+		    show_pwm_min, set_pwm_min, 0);
+static SENSOR_DEVICE_ATTR(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO,
+		    show_pwm_min, set_pwm_min, 1);
+static SENSOR_DEVICE_ATTR(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO,
+		    show_pwm_min, set_pwm_min, 2);
+static SENSOR_DEVICE_ATTR(pwm4_auto_point1_pwm, S_IWUSR | S_IRUGO,
+		    show_pwm_min, set_pwm_min, 3);
+
+static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO,
+		    show_pwm_max, set_pwm_max, 0);
+static SENSOR_DEVICE_ATTR(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO,
+		    show_pwm_max, set_pwm_max, 1);
+static SENSOR_DEVICE_ATTR(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO,
+		    show_pwm_max, set_pwm_max, 2);
+static SENSOR_DEVICE_ATTR(pwm4_auto_point2_pwm, S_IWUSR | S_IRUGO,
+		    show_pwm_max, set_pwm_max, 3);
+
+static SENSOR_DEVICE_ATTR(temp1_auto_point1_hyst, S_IWUSR | S_IRUGO,
+		    show_pwm_hyst, set_pwm_hyst, 0);
+static SENSOR_DEVICE_ATTR(temp2_auto_point1_hyst, S_IWUSR | S_IRUGO,
+		    show_pwm_hyst, set_pwm_hyst, 1);
+static SENSOR_DEVICE_ATTR(temp3_auto_point1_hyst, S_IWUSR | S_IRUGO,
+		    show_pwm_hyst, set_pwm_hyst, 2);
+static SENSOR_DEVICE_ATTR(temp4_auto_point1_hyst, S_IWUSR | S_IRUGO,
+		    show_pwm_hyst, set_pwm_hyst, 3);
+
+static SENSOR_DEVICE_ATTR(temp1_auto_point2_hyst, S_IWUSR | S_IRUGO,
+		    show_pwm_hyst, set_pwm_hyst, 0);
+static SENSOR_DEVICE_ATTR(temp2_auto_point2_hyst, S_IWUSR | S_IRUGO,
+		    show_pwm_hyst, set_pwm_hyst, 1);
+static SENSOR_DEVICE_ATTR(temp3_auto_point2_hyst, S_IWUSR | S_IRUGO,
+		    show_pwm_hyst, set_pwm_hyst, 2);
+static SENSOR_DEVICE_ATTR(temp4_auto_point2_hyst, S_IWUSR | S_IRUGO,
+		    show_pwm_hyst, set_pwm_hyst, 3);
+
+static SENSOR_DEVICE_ATTR(temp1_auto_point1_temp, S_IWUSR | S_IRUGO,
+		    show_pwm_tmin, set_pwm_tmin, 0);
+static SENSOR_DEVICE_ATTR(temp2_auto_point1_temp, S_IWUSR | S_IRUGO,
+		    show_pwm_tmin, set_pwm_tmin, 1);
+static SENSOR_DEVICE_ATTR(temp3_auto_point1_temp, S_IWUSR | S_IRUGO,
+		    show_pwm_tmin, set_pwm_tmin, 2);
+static SENSOR_DEVICE_ATTR(temp4_auto_point1_temp, S_IWUSR | S_IRUGO,
+		    show_pwm_tmin, set_pwm_tmin, 3);
+
+static SENSOR_DEVICE_ATTR(temp1_auto_point2_temp, S_IWUSR | S_IRUGO,
+		    show_pwm_tmax, set_pwm_tmax, 0);
+static SENSOR_DEVICE_ATTR(temp2_auto_point2_temp, S_IWUSR | S_IRUGO,
+		    show_pwm_tmax, set_pwm_tmax, 1);
+static SENSOR_DEVICE_ATTR(temp3_auto_point2_temp, S_IWUSR | S_IRUGO,
+		    show_pwm_tmax, set_pwm_tmax, 2);
+static SENSOR_DEVICE_ATTR(temp4_auto_point2_temp, S_IWUSR | S_IRUGO,
+		    show_pwm_tmax, set_pwm_tmax, 3);
+
+static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_auto,
+		    set_pwm_auto, 0);
+static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_auto,
+		    set_pwm_auto, 1);
+static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_auto,
+		    set_pwm_auto, 2);
+static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_auto,
+		    set_pwm_auto, 3);
+
+static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IWUSR | S_IRUGO,
+		    show_pwm_auto_temp, set_pwm_auto_temp, 0);
+static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IWUSR | S_IRUGO,
+		    show_pwm_auto_temp, set_pwm_auto_temp, 1);
+static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IWUSR | S_IRUGO,
+		    show_pwm_auto_temp, set_pwm_auto_temp, 2);
+static SENSOR_DEVICE_ATTR(pwm4_auto_channels_temp, S_IWUSR | S_IRUGO,
+		    show_pwm_auto_temp, set_pwm_auto_temp, 3);
+
+static struct attribute *adt7462_attr[] =
+{
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp3_max.dev_attr.attr,
+	&sensor_dev_attr_temp4_max.dev_attr.attr,
+
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_temp2_min.dev_attr.attr,
+	&sensor_dev_attr_temp3_min.dev_attr.attr,
+	&sensor_dev_attr_temp4_min.dev_attr.attr,
+
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp3_input.dev_attr.attr,
+	&sensor_dev_attr_temp4_input.dev_attr.attr,
+
+	&sensor_dev_attr_temp1_label.dev_attr.attr,
+	&sensor_dev_attr_temp2_label.dev_attr.attr,
+	&sensor_dev_attr_temp3_label.dev_attr.attr,
+	&sensor_dev_attr_temp4_label.dev_attr.attr,
+
+	&sensor_dev_attr_temp1_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp3_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp4_alarm.dev_attr.attr,
+
+	&sensor_dev_attr_in1_max.dev_attr.attr,
+	&sensor_dev_attr_in2_max.dev_attr.attr,
+	&sensor_dev_attr_in3_max.dev_attr.attr,
+	&sensor_dev_attr_in4_max.dev_attr.attr,
+	&sensor_dev_attr_in5_max.dev_attr.attr,
+	&sensor_dev_attr_in6_max.dev_attr.attr,
+	&sensor_dev_attr_in7_max.dev_attr.attr,
+	&sensor_dev_attr_in8_max.dev_attr.attr,
+	&sensor_dev_attr_in9_max.dev_attr.attr,
+	&sensor_dev_attr_in10_max.dev_attr.attr,
+	&sensor_dev_attr_in11_max.dev_attr.attr,
+	&sensor_dev_attr_in12_max.dev_attr.attr,
+	&sensor_dev_attr_in13_max.dev_attr.attr,
+
+	&sensor_dev_attr_in1_min.dev_attr.attr,
+	&sensor_dev_attr_in2_min.dev_attr.attr,
+	&sensor_dev_attr_in3_min.dev_attr.attr,
+	&sensor_dev_attr_in4_min.dev_attr.attr,
+	&sensor_dev_attr_in5_min.dev_attr.attr,
+	&sensor_dev_attr_in6_min.dev_attr.attr,
+	&sensor_dev_attr_in7_min.dev_attr.attr,
+	&sensor_dev_attr_in8_min.dev_attr.attr,
+	&sensor_dev_attr_in9_min.dev_attr.attr,
+	&sensor_dev_attr_in10_min.dev_attr.attr,
+	&sensor_dev_attr_in11_min.dev_attr.attr,
+	&sensor_dev_attr_in12_min.dev_attr.attr,
+	&sensor_dev_attr_in13_min.dev_attr.attr,
+
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in4_input.dev_attr.attr,
+	&sensor_dev_attr_in5_input.dev_attr.attr,
+	&sensor_dev_attr_in6_input.dev_attr.attr,
+	&sensor_dev_attr_in7_input.dev_attr.attr,
+	&sensor_dev_attr_in8_input.dev_attr.attr,
+	&sensor_dev_attr_in9_input.dev_attr.attr,
+	&sensor_dev_attr_in10_input.dev_attr.attr,
+	&sensor_dev_attr_in11_input.dev_attr.attr,
+	&sensor_dev_attr_in12_input.dev_attr.attr,
+	&sensor_dev_attr_in13_input.dev_attr.attr,
+
+	&sensor_dev_attr_in1_label.dev_attr.attr,
+	&sensor_dev_attr_in2_label.dev_attr.attr,
+	&sensor_dev_attr_in3_label.dev_attr.attr,
+	&sensor_dev_attr_in4_label.dev_attr.attr,
+	&sensor_dev_attr_in5_label.dev_attr.attr,
+	&sensor_dev_attr_in6_label.dev_attr.attr,
+	&sensor_dev_attr_in7_label.dev_attr.attr,
+	&sensor_dev_attr_in8_label.dev_attr.attr,
+	&sensor_dev_attr_in9_label.dev_attr.attr,
+	&sensor_dev_attr_in10_label.dev_attr.attr,
+	&sensor_dev_attr_in11_label.dev_attr.attr,
+	&sensor_dev_attr_in12_label.dev_attr.attr,
+	&sensor_dev_attr_in13_label.dev_attr.attr,
+
+	&sensor_dev_attr_in1_alarm.dev_attr.attr,
+	&sensor_dev_attr_in2_alarm.dev_attr.attr,
+	&sensor_dev_attr_in3_alarm.dev_attr.attr,
+	&sensor_dev_attr_in4_alarm.dev_attr.attr,
+	&sensor_dev_attr_in5_alarm.dev_attr.attr,
+	&sensor_dev_attr_in6_alarm.dev_attr.attr,
+	&sensor_dev_attr_in7_alarm.dev_attr.attr,
+	&sensor_dev_attr_in8_alarm.dev_attr.attr,
+	&sensor_dev_attr_in9_alarm.dev_attr.attr,
+	&sensor_dev_attr_in10_alarm.dev_attr.attr,
+	&sensor_dev_attr_in11_alarm.dev_attr.attr,
+	&sensor_dev_attr_in12_alarm.dev_attr.attr,
+	&sensor_dev_attr_in13_alarm.dev_attr.attr,
+
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan3_min.dev_attr.attr,
+	&sensor_dev_attr_fan4_min.dev_attr.attr,
+	&sensor_dev_attr_fan5_min.dev_attr.attr,
+	&sensor_dev_attr_fan6_min.dev_attr.attr,
+	&sensor_dev_attr_fan7_min.dev_attr.attr,
+	&sensor_dev_attr_fan8_min.dev_attr.attr,
+
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan3_input.dev_attr.attr,
+	&sensor_dev_attr_fan4_input.dev_attr.attr,
+	&sensor_dev_attr_fan5_input.dev_attr.attr,
+	&sensor_dev_attr_fan6_input.dev_attr.attr,
+	&sensor_dev_attr_fan7_input.dev_attr.attr,
+	&sensor_dev_attr_fan8_input.dev_attr.attr,
+
+	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan3_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan4_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan5_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan6_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan7_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan8_alarm.dev_attr.attr,
+
+	&sensor_dev_attr_force_pwm_max.dev_attr.attr,
+	&sensor_dev_attr_pwm1.dev_attr.attr,
+	&sensor_dev_attr_pwm2.dev_attr.attr,
+	&sensor_dev_attr_pwm3.dev_attr.attr,
+	&sensor_dev_attr_pwm4.dev_attr.attr,
+
+	&sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm4_auto_point1_pwm.dev_attr.attr,
+
+	&sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm4_auto_point2_pwm.dev_attr.attr,
+
+	&sensor_dev_attr_temp1_auto_point1_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_point1_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_point1_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp4_auto_point1_hyst.dev_attr.attr,
+
+	&sensor_dev_attr_temp1_auto_point2_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_point2_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_point2_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp4_auto_point2_hyst.dev_attr.attr,
+
+	&sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_temp4_auto_point1_temp.dev_attr.attr,
+
+	&sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_temp4_auto_point2_temp.dev_attr.attr,
+
+	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm2_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm3_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm4_enable.dev_attr.attr,
+
+	&sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm4_auto_channels_temp.dev_attr.attr,
+	NULL
+};
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int adt7462_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	if (kind <= 0) {
+		int vendor, device, revision;
+
+		vendor = i2c_smbus_read_byte_data(client, ADT7462_REG_VENDOR);
+		if (vendor != ADT7462_VENDOR)
+			return -ENODEV;
+
+		device = i2c_smbus_read_byte_data(client, ADT7462_REG_DEVICE);
+		if (device != ADT7462_DEVICE)
+			return -ENODEV;
+
+		revision = i2c_smbus_read_byte_data(client,
+						    ADT7462_REG_REVISION);
+		if (revision != ADT7462_REVISION)
+			return -ENODEV;
+	} else
+		dev_dbg(&adapter->dev, "detection forced\n");
+
+	strlcpy(info->type, "adt7462", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int adt7462_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct adt7462_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct adt7462_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->lock);
+
+	dev_info(&client->dev, "%s chip found\n", client->name);
+
+	/* Register sysfs hooks */
+	data->attrs.attrs = adt7462_attr;
+	err = sysfs_create_group(&client->dev.kobj, &data->attrs);
+	if (err)
+		goto exit_free;
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	return 0;
+
+exit_remove:
+	sysfs_remove_group(&client->dev.kobj, &data->attrs);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+static int adt7462_remove(struct i2c_client *client)
+{
+	struct adt7462_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &data->attrs);
+	kfree(data);
+	return 0;
+}
+
+static int __init adt7462_init(void)
+{
+	return i2c_add_driver(&adt7462_driver);
+}
+
+static void __exit adt7462_exit(void)
+{
+	i2c_del_driver(&adt7462_driver);
+}
+
+MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>");
+MODULE_DESCRIPTION("ADT7462 driver");
+MODULE_LICENSE("GPL");
+
+module_init(adt7462_init);
+module_exit(adt7462_exit);
diff --git a/drivers/hwmon/adt7470.c b/drivers/hwmon/adt7470.c
new file mode 100644
index 0000000..1311a59
--- /dev/null
+++ b/drivers/hwmon/adt7470.c
@@ -0,0 +1,1165 @@
+/*
+ * A hwmon driver for the Analog Devices ADT7470
+ * Copyright (C) 2007 IBM
+ *
+ * Author: Darrick J. Wong <djwong@us.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/module.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/delay.h>
+#include <linux/log2.h>
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x2C, 0x2E, 0x2F, I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_1(adt7470);
+
+/* ADT7470 registers */
+#define ADT7470_REG_BASE_ADDR			0x20
+#define ADT7470_REG_TEMP_BASE_ADDR		0x20
+#define ADT7470_REG_TEMP_MAX_ADDR		0x29
+#define ADT7470_REG_FAN_BASE_ADDR		0x2A
+#define ADT7470_REG_FAN_MAX_ADDR		0x31
+#define ADT7470_REG_PWM_BASE_ADDR		0x32
+#define ADT7470_REG_PWM_MAX_ADDR		0x35
+#define ADT7470_REG_PWM_MAX_BASE_ADDR		0x38
+#define ADT7470_REG_PWM_MAX_MAX_ADDR		0x3B
+#define ADT7470_REG_CFG				0x40
+#define		ADT7470_FSPD_MASK		0x04
+#define ADT7470_REG_ALARM1			0x41
+#define		ADT7470_R1T_ALARM		0x01
+#define		ADT7470_R2T_ALARM		0x02
+#define		ADT7470_R3T_ALARM		0x04
+#define		ADT7470_R4T_ALARM		0x08
+#define		ADT7470_R5T_ALARM		0x10
+#define		ADT7470_R6T_ALARM		0x20
+#define		ADT7470_R7T_ALARM		0x40
+#define		ADT7470_OOL_ALARM		0x80
+#define ADT7470_REG_ALARM2			0x42
+#define		ADT7470_R8T_ALARM		0x01
+#define		ADT7470_R9T_ALARM		0x02
+#define		ADT7470_R10T_ALARM		0x04
+#define		ADT7470_FAN1_ALARM		0x10
+#define		ADT7470_FAN2_ALARM		0x20
+#define		ADT7470_FAN3_ALARM		0x40
+#define		ADT7470_FAN4_ALARM		0x80
+#define ADT7470_REG_TEMP_LIMITS_BASE_ADDR	0x44
+#define ADT7470_REG_TEMP_LIMITS_MAX_ADDR	0x57
+#define ADT7470_REG_FAN_MIN_BASE_ADDR		0x58
+#define ADT7470_REG_FAN_MIN_MAX_ADDR		0x5F
+#define ADT7470_REG_FAN_MAX_BASE_ADDR		0x60
+#define ADT7470_REG_FAN_MAX_MAX_ADDR		0x67
+#define ADT7470_REG_PWM_CFG_BASE_ADDR		0x68
+#define ADT7470_REG_PWM12_CFG			0x68
+#define		ADT7470_PWM2_AUTO_MASK		0x40
+#define		ADT7470_PWM1_AUTO_MASK		0x80
+#define ADT7470_REG_PWM34_CFG			0x69
+#define		ADT7470_PWM3_AUTO_MASK		0x40
+#define		ADT7470_PWM4_AUTO_MASK		0x80
+#define	ADT7470_REG_PWM_MIN_BASE_ADDR		0x6A
+#define ADT7470_REG_PWM_MIN_MAX_ADDR		0x6D
+#define ADT7470_REG_PWM_TEMP_MIN_BASE_ADDR	0x6E
+#define ADT7470_REG_PWM_TEMP_MIN_MAX_ADDR	0x71
+#define ADT7470_REG_ACOUSTICS12			0x75
+#define ADT7470_REG_ACOUSTICS34			0x76
+#define ADT7470_REG_DEVICE			0x3D
+#define ADT7470_REG_VENDOR			0x3E
+#define ADT7470_REG_REVISION			0x3F
+#define ADT7470_REG_ALARM1_MASK			0x72
+#define ADT7470_REG_ALARM2_MASK			0x73
+#define ADT7470_REG_PWM_AUTO_TEMP_BASE_ADDR	0x7C
+#define ADT7470_REG_PWM_AUTO_TEMP_MAX_ADDR	0x7D
+#define ADT7470_REG_MAX_ADDR			0x81
+
+#define ADT7470_TEMP_COUNT	10
+#define ADT7470_TEMP_REG(x)	(ADT7470_REG_TEMP_BASE_ADDR + (x))
+#define ADT7470_TEMP_MIN_REG(x) (ADT7470_REG_TEMP_LIMITS_BASE_ADDR + ((x) * 2))
+#define ADT7470_TEMP_MAX_REG(x) (ADT7470_REG_TEMP_LIMITS_BASE_ADDR + \
+				((x) * 2) + 1)
+
+#define ADT7470_FAN_COUNT	4
+#define ADT7470_REG_FAN(x)	(ADT7470_REG_FAN_BASE_ADDR + ((x) * 2))
+#define ADT7470_REG_FAN_MIN(x)	(ADT7470_REG_FAN_MIN_BASE_ADDR + ((x) * 2))
+#define ADT7470_REG_FAN_MAX(x)	(ADT7470_REG_FAN_MAX_BASE_ADDR + ((x) * 2))
+
+#define ADT7470_PWM_COUNT	4
+#define ADT7470_REG_PWM(x)	(ADT7470_REG_PWM_BASE_ADDR + (x))
+#define ADT7470_REG_PWM_MAX(x)	(ADT7470_REG_PWM_MAX_BASE_ADDR + (x))
+#define ADT7470_REG_PWM_MIN(x)	(ADT7470_REG_PWM_MIN_BASE_ADDR + (x))
+#define ADT7470_REG_PWM_TMIN(x)	(ADT7470_REG_PWM_TEMP_MIN_BASE_ADDR + (x))
+#define ADT7470_REG_PWM_CFG(x)	(ADT7470_REG_PWM_CFG_BASE_ADDR + ((x) / 2))
+#define ADT7470_REG_PWM_AUTO_TEMP(x)	(ADT7470_REG_PWM_AUTO_TEMP_BASE_ADDR + \
+					((x) / 2))
+
+#define ALARM2(x)		((x) << 8)
+
+#define ADT7470_VENDOR		0x41
+#define ADT7470_DEVICE		0x70
+/* datasheet only mentions a revision 2 */
+#define ADT7470_REVISION	0x02
+
+/* "all temps" according to hwmon sysfs interface spec */
+#define ADT7470_PWM_ALL_TEMPS	0x3FF
+
+/* How often do we reread sensors values? (In jiffies) */
+#define SENSOR_REFRESH_INTERVAL	(5 * HZ)
+
+/* How often do we reread sensor limit values? (In jiffies) */
+#define LIMIT_REFRESH_INTERVAL	(60 * HZ)
+
+/* sleep 1s while gathering temperature data */
+#define TEMP_COLLECTION_TIME	1000
+
+/* datasheet says to divide this number by the fan reading to get fan rpm */
+#define FAN_PERIOD_TO_RPM(x)	((90000 * 60) / (x))
+#define FAN_RPM_TO_PERIOD	FAN_PERIOD_TO_RPM
+#define FAN_PERIOD_INVALID	65535
+#define FAN_DATA_VALID(x)	((x) && (x) != FAN_PERIOD_INVALID)
+
+#define ROUND_DIV(x, divisor)	(((x) + ((divisor) / 2)) / (divisor))
+
+struct adt7470_data {
+	struct device		*hwmon_dev;
+	struct attribute_group	attrs;
+	struct mutex		lock;
+	char			sensors_valid;
+	char			limits_valid;
+	unsigned long		sensors_last_updated;	/* In jiffies */
+	unsigned long		limits_last_updated;	/* In jiffies */
+
+	s8			temp[ADT7470_TEMP_COUNT];
+	s8			temp_min[ADT7470_TEMP_COUNT];
+	s8			temp_max[ADT7470_TEMP_COUNT];
+	u16			fan[ADT7470_FAN_COUNT];
+	u16			fan_min[ADT7470_FAN_COUNT];
+	u16			fan_max[ADT7470_FAN_COUNT];
+	u16			alarm;
+	u16			alarms_mask;
+	u8			force_pwm_max;
+	u8			pwm[ADT7470_PWM_COUNT];
+	u8			pwm_max[ADT7470_PWM_COUNT];
+	u8			pwm_automatic[ADT7470_PWM_COUNT];
+	u8			pwm_min[ADT7470_PWM_COUNT];
+	s8			pwm_tmin[ADT7470_PWM_COUNT];
+	u8			pwm_auto_temp[ADT7470_PWM_COUNT];
+};
+
+static int adt7470_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int adt7470_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
+static int adt7470_remove(struct i2c_client *client);
+
+static const struct i2c_device_id adt7470_id[] = {
+	{ "adt7470", adt7470 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adt7470_id);
+
+static struct i2c_driver adt7470_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "adt7470",
+	},
+	.probe		= adt7470_probe,
+	.remove		= adt7470_remove,
+	.id_table	= adt7470_id,
+	.detect		= adt7470_detect,
+	.address_data	= &addr_data,
+};
+
+/*
+ * 16-bit registers on the ADT7470 are low-byte first.  The data sheet says
+ * that the low byte must be read before the high byte.
+ */
+static inline int adt7470_read_word_data(struct i2c_client *client, u8 reg)
+{
+	u16 foo;
+	foo = i2c_smbus_read_byte_data(client, reg);
+	foo |= ((u16)i2c_smbus_read_byte_data(client, reg + 1) << 8);
+	return foo;
+}
+
+static inline int adt7470_write_word_data(struct i2c_client *client, u8 reg,
+					  u16 value)
+{
+	return i2c_smbus_write_byte_data(client, reg, value & 0xFF)
+	       && i2c_smbus_write_byte_data(client, reg + 1, value >> 8);
+}
+
+static void adt7470_init_client(struct i2c_client *client)
+{
+	int reg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG);
+
+	if (reg < 0) {
+		dev_err(&client->dev, "cannot read configuration register\n");
+	} else {
+		/* start monitoring (and do a self-test) */
+		i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, reg | 3);
+	}
+}
+
+static struct adt7470_data *adt7470_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7470_data *data = i2c_get_clientdata(client);
+	unsigned long local_jiffies = jiffies;
+	u8 cfg;
+	int i;
+
+	mutex_lock(&data->lock);
+	if (time_before(local_jiffies, data->sensors_last_updated +
+		SENSOR_REFRESH_INTERVAL)
+		&& data->sensors_valid)
+		goto no_sensor_update;
+
+	/* start reading temperature sensors */
+	cfg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG);
+	cfg |= 0x80;
+	i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, cfg);
+
+	/*
+	 * Delay is 200ms * number of tmp05 sensors.  Too bad
+	 * there's no way to figure out how many are connected.
+	 * For now, assume 1s will work.
+	 */
+	msleep(TEMP_COLLECTION_TIME);
+
+	/* done reading temperature sensors */
+	cfg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG);
+	cfg &= ~0x80;
+	i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, cfg);
+
+	for (i = 0; i < ADT7470_TEMP_COUNT; i++)
+		data->temp[i] = i2c_smbus_read_byte_data(client,
+						ADT7470_TEMP_REG(i));
+
+	for (i = 0; i < ADT7470_FAN_COUNT; i++)
+		data->fan[i] = adt7470_read_word_data(client,
+						ADT7470_REG_FAN(i));
+
+	for (i = 0; i < ADT7470_PWM_COUNT; i++) {
+		int reg;
+		int reg_mask;
+
+		data->pwm[i] = i2c_smbus_read_byte_data(client,
+						ADT7470_REG_PWM(i));
+
+		if (i % 2)
+			reg_mask = ADT7470_PWM2_AUTO_MASK;
+		else
+			reg_mask = ADT7470_PWM1_AUTO_MASK;
+
+		reg = ADT7470_REG_PWM_CFG(i);
+		if (i2c_smbus_read_byte_data(client, reg) & reg_mask)
+			data->pwm_automatic[i] = 1;
+		else
+			data->pwm_automatic[i] = 0;
+
+		reg = ADT7470_REG_PWM_AUTO_TEMP(i);
+		cfg = i2c_smbus_read_byte_data(client, reg);
+		if (!(i % 2))
+			data->pwm_auto_temp[i] = cfg >> 4;
+		else
+			data->pwm_auto_temp[i] = cfg & 0xF;
+	}
+
+	if (i2c_smbus_read_byte_data(client, ADT7470_REG_CFG) &
+	    ADT7470_FSPD_MASK)
+		data->force_pwm_max = 1;
+	else
+		data->force_pwm_max = 0;
+
+	data->alarm = i2c_smbus_read_byte_data(client, ADT7470_REG_ALARM1);
+	if (data->alarm & ADT7470_OOL_ALARM)
+		data->alarm |= ALARM2(i2c_smbus_read_byte_data(client,
+							ADT7470_REG_ALARM2));
+	data->alarms_mask = adt7470_read_word_data(client,
+						   ADT7470_REG_ALARM1_MASK);
+
+	data->sensors_last_updated = local_jiffies;
+	data->sensors_valid = 1;
+
+no_sensor_update:
+	if (time_before(local_jiffies, data->limits_last_updated +
+		LIMIT_REFRESH_INTERVAL)
+		&& data->limits_valid)
+		goto out;
+
+	for (i = 0; i < ADT7470_TEMP_COUNT; i++) {
+		data->temp_min[i] = i2c_smbus_read_byte_data(client,
+						ADT7470_TEMP_MIN_REG(i));
+		data->temp_max[i] = i2c_smbus_read_byte_data(client,
+						ADT7470_TEMP_MAX_REG(i));
+	}
+
+	for (i = 0; i < ADT7470_FAN_COUNT; i++) {
+		data->fan_min[i] = adt7470_read_word_data(client,
+						ADT7470_REG_FAN_MIN(i));
+		data->fan_max[i] = adt7470_read_word_data(client,
+						ADT7470_REG_FAN_MAX(i));
+	}
+
+	for (i = 0; i < ADT7470_PWM_COUNT; i++) {
+		data->pwm_max[i] = i2c_smbus_read_byte_data(client,
+						ADT7470_REG_PWM_MAX(i));
+		data->pwm_min[i] = i2c_smbus_read_byte_data(client,
+						ADT7470_REG_PWM_MIN(i));
+		data->pwm_tmin[i] = i2c_smbus_read_byte_data(client,
+						ADT7470_REG_PWM_TMIN(i));
+	}
+
+	data->limits_last_updated = local_jiffies;
+	data->limits_valid = 1;
+
+out:
+	mutex_unlock(&data->lock);
+	return data;
+}
+
+static ssize_t show_temp_min(struct device *dev,
+			     struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7470_data *data = adt7470_update_device(dev);
+	return sprintf(buf, "%d\n", 1000 * data->temp_min[attr->index]);
+}
+
+static ssize_t set_temp_min(struct device *dev,
+			    struct device_attribute *devattr,
+			    const char *buf,
+			    size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7470_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	temp = ROUND_DIV(temp, 1000);
+	temp = SENSORS_LIMIT(temp, 0, 255);
+
+	mutex_lock(&data->lock);
+	data->temp_min[attr->index] = temp;
+	i2c_smbus_write_byte_data(client, ADT7470_TEMP_MIN_REG(attr->index),
+				  temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_temp_max(struct device *dev,
+			     struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7470_data *data = adt7470_update_device(dev);
+	return sprintf(buf, "%d\n", 1000 * data->temp_max[attr->index]);
+}
+
+static ssize_t set_temp_max(struct device *dev,
+			    struct device_attribute *devattr,
+			    const char *buf,
+			    size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7470_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	temp = ROUND_DIV(temp, 1000);
+	temp = SENSORS_LIMIT(temp, 0, 255);
+
+	mutex_lock(&data->lock);
+	data->temp_max[attr->index] = temp;
+	i2c_smbus_write_byte_data(client, ADT7470_TEMP_MAX_REG(attr->index),
+				  temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
+			 char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7470_data *data = adt7470_update_device(dev);
+	return sprintf(buf, "%d\n", 1000 * data->temp[attr->index]);
+}
+
+static ssize_t show_alarm_mask(struct device *dev,
+			   struct device_attribute *devattr,
+			   char *buf)
+{
+	struct adt7470_data *data = adt7470_update_device(dev);
+
+	return sprintf(buf, "%x\n", data->alarms_mask);
+}
+
+static ssize_t show_fan_max(struct device *dev,
+			    struct device_attribute *devattr,
+			    char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7470_data *data = adt7470_update_device(dev);
+
+	if (FAN_DATA_VALID(data->fan_max[attr->index]))
+		return sprintf(buf, "%d\n",
+			       FAN_PERIOD_TO_RPM(data->fan_max[attr->index]));
+	else
+		return sprintf(buf, "0\n");
+}
+
+static ssize_t set_fan_max(struct device *dev,
+			   struct device_attribute *devattr,
+			   const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7470_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp) || !temp)
+		return -EINVAL;
+
+	temp = FAN_RPM_TO_PERIOD(temp);
+	temp = SENSORS_LIMIT(temp, 1, 65534);
+
+	mutex_lock(&data->lock);
+	data->fan_max[attr->index] = temp;
+	adt7470_write_word_data(client, ADT7470_REG_FAN_MAX(attr->index), temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_fan_min(struct device *dev,
+			    struct device_attribute *devattr,
+			    char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7470_data *data = adt7470_update_device(dev);
+
+	if (FAN_DATA_VALID(data->fan_min[attr->index]))
+		return sprintf(buf, "%d\n",
+			       FAN_PERIOD_TO_RPM(data->fan_min[attr->index]));
+	else
+		return sprintf(buf, "0\n");
+}
+
+static ssize_t set_fan_min(struct device *dev,
+			   struct device_attribute *devattr,
+			   const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7470_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp) || !temp)
+		return -EINVAL;
+
+	temp = FAN_RPM_TO_PERIOD(temp);
+	temp = SENSORS_LIMIT(temp, 1, 65534);
+
+	mutex_lock(&data->lock);
+	data->fan_min[attr->index] = temp;
+	adt7470_write_word_data(client, ADT7470_REG_FAN_MIN(attr->index), temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
+			char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7470_data *data = adt7470_update_device(dev);
+
+	if (FAN_DATA_VALID(data->fan[attr->index]))
+		return sprintf(buf, "%d\n",
+			       FAN_PERIOD_TO_RPM(data->fan[attr->index]));
+	else
+		return sprintf(buf, "0\n");
+}
+
+static ssize_t show_force_pwm_max(struct device *dev,
+				  struct device_attribute *devattr,
+				  char *buf)
+{
+	struct adt7470_data *data = adt7470_update_device(dev);
+	return sprintf(buf, "%d\n", data->force_pwm_max);
+}
+
+static ssize_t set_force_pwm_max(struct device *dev,
+				 struct device_attribute *devattr,
+				 const char *buf,
+				 size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7470_data *data = i2c_get_clientdata(client);
+	long temp;
+	u8 reg;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	mutex_lock(&data->lock);
+	data->force_pwm_max = temp;
+	reg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG);
+	if (temp)
+		reg |= ADT7470_FSPD_MASK;
+	else
+		reg &= ~ADT7470_FSPD_MASK;
+	i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, reg);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr,
+			char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7470_data *data = adt7470_update_device(dev);
+	return sprintf(buf, "%d\n", data->pwm[attr->index]);
+}
+
+static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr,
+			const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7470_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	temp = SENSORS_LIMIT(temp, 0, 255);
+
+	mutex_lock(&data->lock);
+	data->pwm[attr->index] = temp;
+	i2c_smbus_write_byte_data(client, ADT7470_REG_PWM(attr->index), temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_pwm_max(struct device *dev,
+			    struct device_attribute *devattr,
+			    char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7470_data *data = adt7470_update_device(dev);
+	return sprintf(buf, "%d\n", data->pwm_max[attr->index]);
+}
+
+static ssize_t set_pwm_max(struct device *dev,
+			   struct device_attribute *devattr,
+			   const char *buf,
+			   size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7470_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	temp = SENSORS_LIMIT(temp, 0, 255);
+
+	mutex_lock(&data->lock);
+	data->pwm_max[attr->index] = temp;
+	i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_MAX(attr->index),
+				  temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_pwm_min(struct device *dev,
+			    struct device_attribute *devattr,
+			    char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7470_data *data = adt7470_update_device(dev);
+	return sprintf(buf, "%d\n", data->pwm_min[attr->index]);
+}
+
+static ssize_t set_pwm_min(struct device *dev,
+			   struct device_attribute *devattr,
+			   const char *buf,
+			   size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7470_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	temp = SENSORS_LIMIT(temp, 0, 255);
+
+	mutex_lock(&data->lock);
+	data->pwm_min[attr->index] = temp;
+	i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_MIN(attr->index),
+				  temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_pwm_tmax(struct device *dev,
+			     struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7470_data *data = adt7470_update_device(dev);
+	/* the datasheet says that tmax = tmin + 20C */
+	return sprintf(buf, "%d\n", 1000 * (20 + data->pwm_tmin[attr->index]));
+}
+
+static ssize_t show_pwm_tmin(struct device *dev,
+			     struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7470_data *data = adt7470_update_device(dev);
+	return sprintf(buf, "%d\n", 1000 * data->pwm_tmin[attr->index]);
+}
+
+static ssize_t set_pwm_tmin(struct device *dev,
+			    struct device_attribute *devattr,
+			    const char *buf,
+			    size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7470_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	temp = ROUND_DIV(temp, 1000);
+	temp = SENSORS_LIMIT(temp, 0, 255);
+
+	mutex_lock(&data->lock);
+	data->pwm_tmin[attr->index] = temp;
+	i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_TMIN(attr->index),
+				  temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_pwm_auto(struct device *dev,
+			     struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7470_data *data = adt7470_update_device(dev);
+	return sprintf(buf, "%d\n", 1 + data->pwm_automatic[attr->index]);
+}
+
+static ssize_t set_pwm_auto(struct device *dev,
+			    struct device_attribute *devattr,
+			    const char *buf,
+			    size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7470_data *data = i2c_get_clientdata(client);
+	int pwm_auto_reg = ADT7470_REG_PWM_CFG(attr->index);
+	int pwm_auto_reg_mask;
+	long temp;
+	u8 reg;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	if (attr->index % 2)
+		pwm_auto_reg_mask = ADT7470_PWM2_AUTO_MASK;
+	else
+		pwm_auto_reg_mask = ADT7470_PWM1_AUTO_MASK;
+
+	if (temp != 2 && temp != 1)
+		return -EINVAL;
+	temp--;
+
+	mutex_lock(&data->lock);
+	data->pwm_automatic[attr->index] = temp;
+	reg = i2c_smbus_read_byte_data(client, pwm_auto_reg);
+	if (temp)
+		reg |= pwm_auto_reg_mask;
+	else
+		reg &= ~pwm_auto_reg_mask;
+	i2c_smbus_write_byte_data(client, pwm_auto_reg, reg);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_pwm_auto_temp(struct device *dev,
+				  struct device_attribute *devattr,
+				  char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7470_data *data = adt7470_update_device(dev);
+	u8 ctrl = data->pwm_auto_temp[attr->index];
+
+	if (ctrl)
+		return sprintf(buf, "%d\n", 1 << (ctrl - 1));
+	else
+		return sprintf(buf, "%d\n", ADT7470_PWM_ALL_TEMPS);
+}
+
+static int cvt_auto_temp(int input)
+{
+	if (input == ADT7470_PWM_ALL_TEMPS)
+		return 0;
+	if (input < 1 || !is_power_of_2(input))
+		return -EINVAL;
+	return ilog2(input) + 1;
+}
+
+static ssize_t set_pwm_auto_temp(struct device *dev,
+				 struct device_attribute *devattr,
+				 const char *buf,
+				 size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7470_data *data = i2c_get_clientdata(client);
+	int pwm_auto_reg = ADT7470_REG_PWM_AUTO_TEMP(attr->index);
+	long temp;
+	u8 reg;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	temp = cvt_auto_temp(temp);
+	if (temp < 0)
+		return temp;
+
+	mutex_lock(&data->lock);
+	data->pwm_automatic[attr->index] = temp;
+	reg = i2c_smbus_read_byte_data(client, pwm_auto_reg);
+
+	if (!(attr->index % 2)) {
+		reg &= 0xF;
+		reg |= (temp << 4) & 0xF0;
+	} else {
+		reg &= 0xF0;
+		reg |= temp & 0xF;
+	}
+
+	i2c_smbus_write_byte_data(client, pwm_auto_reg, reg);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_alarm(struct device *dev,
+			  struct device_attribute *devattr,
+			  char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7470_data *data = adt7470_update_device(dev);
+
+	if (data->alarm & attr->index)
+		return sprintf(buf, "1\n");
+	else
+		return sprintf(buf, "0\n");
+}
+
+static DEVICE_ATTR(alarm_mask, S_IRUGO, show_alarm_mask, NULL);
+
+static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max,
+		    set_temp_max, 0);
+static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_max,
+		    set_temp_max, 1);
+static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_temp_max,
+		    set_temp_max, 2);
+static SENSOR_DEVICE_ATTR(temp4_max, S_IWUSR | S_IRUGO, show_temp_max,
+		    set_temp_max, 3);
+static SENSOR_DEVICE_ATTR(temp5_max, S_IWUSR | S_IRUGO, show_temp_max,
+		    set_temp_max, 4);
+static SENSOR_DEVICE_ATTR(temp6_max, S_IWUSR | S_IRUGO, show_temp_max,
+		    set_temp_max, 5);
+static SENSOR_DEVICE_ATTR(temp7_max, S_IWUSR | S_IRUGO, show_temp_max,
+		    set_temp_max, 6);
+static SENSOR_DEVICE_ATTR(temp8_max, S_IWUSR | S_IRUGO, show_temp_max,
+		    set_temp_max, 7);
+static SENSOR_DEVICE_ATTR(temp9_max, S_IWUSR | S_IRUGO, show_temp_max,
+		    set_temp_max, 8);
+static SENSOR_DEVICE_ATTR(temp10_max, S_IWUSR | S_IRUGO, show_temp_max,
+		    set_temp_max, 9);
+
+static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_min,
+		    set_temp_min, 0);
+static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_min,
+		    set_temp_min, 1);
+static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO, show_temp_min,
+		    set_temp_min, 2);
+static SENSOR_DEVICE_ATTR(temp4_min, S_IWUSR | S_IRUGO, show_temp_min,
+		    set_temp_min, 3);
+static SENSOR_DEVICE_ATTR(temp5_min, S_IWUSR | S_IRUGO, show_temp_min,
+		    set_temp_min, 4);
+static SENSOR_DEVICE_ATTR(temp6_min, S_IWUSR | S_IRUGO, show_temp_min,
+		    set_temp_min, 5);
+static SENSOR_DEVICE_ATTR(temp7_min, S_IWUSR | S_IRUGO, show_temp_min,
+		    set_temp_min, 6);
+static SENSOR_DEVICE_ATTR(temp8_min, S_IWUSR | S_IRUGO, show_temp_min,
+		    set_temp_min, 7);
+static SENSOR_DEVICE_ATTR(temp9_min, S_IWUSR | S_IRUGO, show_temp_min,
+		    set_temp_min, 8);
+static SENSOR_DEVICE_ATTR(temp10_min, S_IWUSR | S_IRUGO, show_temp_min,
+		    set_temp_min, 9);
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, show_temp, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, show_temp, NULL, 5);
+static SENSOR_DEVICE_ATTR(temp7_input, S_IRUGO, show_temp, NULL, 6);
+static SENSOR_DEVICE_ATTR(temp8_input, S_IRUGO, show_temp, NULL, 7);
+static SENSOR_DEVICE_ATTR(temp9_input, S_IRUGO, show_temp, NULL, 8);
+static SENSOR_DEVICE_ATTR(temp10_input, S_IRUGO, show_temp, NULL, 9);
+
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7470_R1T_ALARM);
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7470_R2T_ALARM);
+static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7470_R3T_ALARM);
+static SENSOR_DEVICE_ATTR(temp4_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7470_R4T_ALARM);
+static SENSOR_DEVICE_ATTR(temp5_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7470_R5T_ALARM);
+static SENSOR_DEVICE_ATTR(temp6_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7470_R6T_ALARM);
+static SENSOR_DEVICE_ATTR(temp7_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7470_R7T_ALARM);
+static SENSOR_DEVICE_ATTR(temp8_alarm, S_IRUGO, show_alarm, NULL,
+			  ALARM2(ADT7470_R8T_ALARM));
+static SENSOR_DEVICE_ATTR(temp9_alarm, S_IRUGO, show_alarm, NULL,
+			  ALARM2(ADT7470_R9T_ALARM));
+static SENSOR_DEVICE_ATTR(temp10_alarm, S_IRUGO, show_alarm, NULL,
+			  ALARM2(ADT7470_R10T_ALARM));
+
+static SENSOR_DEVICE_ATTR(fan1_max, S_IWUSR | S_IRUGO, show_fan_max,
+		    set_fan_max, 0);
+static SENSOR_DEVICE_ATTR(fan2_max, S_IWUSR | S_IRUGO, show_fan_max,
+		    set_fan_max, 1);
+static SENSOR_DEVICE_ATTR(fan3_max, S_IWUSR | S_IRUGO, show_fan_max,
+		    set_fan_max, 2);
+static SENSOR_DEVICE_ATTR(fan4_max, S_IWUSR | S_IRUGO, show_fan_max,
+		    set_fan_max, 3);
+
+static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min,
+		    set_fan_min, 0);
+static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min,
+		    set_fan_min, 1);
+static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min,
+		    set_fan_min, 2);
+static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min,
+		    set_fan_min, 3);
+
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3);
+
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL,
+			  ALARM2(ADT7470_FAN1_ALARM));
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL,
+			  ALARM2(ADT7470_FAN2_ALARM));
+static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL,
+			  ALARM2(ADT7470_FAN3_ALARM));
+static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL,
+			  ALARM2(ADT7470_FAN4_ALARM));
+
+static SENSOR_DEVICE_ATTR(force_pwm_max, S_IWUSR | S_IRUGO,
+		    show_force_pwm_max, set_force_pwm_max, 0);
+
+static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0);
+static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1);
+static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2);
+static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 3);
+
+static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO,
+		    show_pwm_min, set_pwm_min, 0);
+static SENSOR_DEVICE_ATTR(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO,
+		    show_pwm_min, set_pwm_min, 1);
+static SENSOR_DEVICE_ATTR(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO,
+		    show_pwm_min, set_pwm_min, 2);
+static SENSOR_DEVICE_ATTR(pwm4_auto_point1_pwm, S_IWUSR | S_IRUGO,
+		    show_pwm_min, set_pwm_min, 3);
+
+static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO,
+		    show_pwm_max, set_pwm_max, 0);
+static SENSOR_DEVICE_ATTR(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO,
+		    show_pwm_max, set_pwm_max, 1);
+static SENSOR_DEVICE_ATTR(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO,
+		    show_pwm_max, set_pwm_max, 2);
+static SENSOR_DEVICE_ATTR(pwm4_auto_point2_pwm, S_IWUSR | S_IRUGO,
+		    show_pwm_max, set_pwm_max, 3);
+
+static SENSOR_DEVICE_ATTR(pwm1_auto_point1_temp, S_IWUSR | S_IRUGO,
+		    show_pwm_tmin, set_pwm_tmin, 0);
+static SENSOR_DEVICE_ATTR(pwm2_auto_point1_temp, S_IWUSR | S_IRUGO,
+		    show_pwm_tmin, set_pwm_tmin, 1);
+static SENSOR_DEVICE_ATTR(pwm3_auto_point1_temp, S_IWUSR | S_IRUGO,
+		    show_pwm_tmin, set_pwm_tmin, 2);
+static SENSOR_DEVICE_ATTR(pwm4_auto_point1_temp, S_IWUSR | S_IRUGO,
+		    show_pwm_tmin, set_pwm_tmin, 3);
+
+static SENSOR_DEVICE_ATTR(pwm1_auto_point2_temp, S_IRUGO, show_pwm_tmax,
+		    NULL, 0);
+static SENSOR_DEVICE_ATTR(pwm2_auto_point2_temp, S_IRUGO, show_pwm_tmax,
+		    NULL, 1);
+static SENSOR_DEVICE_ATTR(pwm3_auto_point2_temp, S_IRUGO, show_pwm_tmax,
+		    NULL, 2);
+static SENSOR_DEVICE_ATTR(pwm4_auto_point2_temp, S_IRUGO, show_pwm_tmax,
+		    NULL, 3);
+
+static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_auto,
+		    set_pwm_auto, 0);
+static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_auto,
+		    set_pwm_auto, 1);
+static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_auto,
+		    set_pwm_auto, 2);
+static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_auto,
+		    set_pwm_auto, 3);
+
+static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IWUSR | S_IRUGO,
+		    show_pwm_auto_temp, set_pwm_auto_temp, 0);
+static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IWUSR | S_IRUGO,
+		    show_pwm_auto_temp, set_pwm_auto_temp, 1);
+static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IWUSR | S_IRUGO,
+		    show_pwm_auto_temp, set_pwm_auto_temp, 2);
+static SENSOR_DEVICE_ATTR(pwm4_auto_channels_temp, S_IWUSR | S_IRUGO,
+		    show_pwm_auto_temp, set_pwm_auto_temp, 3);
+
+static struct attribute *adt7470_attr[] =
+{
+	&dev_attr_alarm_mask.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp3_max.dev_attr.attr,
+	&sensor_dev_attr_temp4_max.dev_attr.attr,
+	&sensor_dev_attr_temp5_max.dev_attr.attr,
+	&sensor_dev_attr_temp6_max.dev_attr.attr,
+	&sensor_dev_attr_temp7_max.dev_attr.attr,
+	&sensor_dev_attr_temp8_max.dev_attr.attr,
+	&sensor_dev_attr_temp9_max.dev_attr.attr,
+	&sensor_dev_attr_temp10_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_temp2_min.dev_attr.attr,
+	&sensor_dev_attr_temp3_min.dev_attr.attr,
+	&sensor_dev_attr_temp4_min.dev_attr.attr,
+	&sensor_dev_attr_temp5_min.dev_attr.attr,
+	&sensor_dev_attr_temp6_min.dev_attr.attr,
+	&sensor_dev_attr_temp7_min.dev_attr.attr,
+	&sensor_dev_attr_temp8_min.dev_attr.attr,
+	&sensor_dev_attr_temp9_min.dev_attr.attr,
+	&sensor_dev_attr_temp10_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp3_input.dev_attr.attr,
+	&sensor_dev_attr_temp4_input.dev_attr.attr,
+	&sensor_dev_attr_temp5_input.dev_attr.attr,
+	&sensor_dev_attr_temp6_input.dev_attr.attr,
+	&sensor_dev_attr_temp7_input.dev_attr.attr,
+	&sensor_dev_attr_temp8_input.dev_attr.attr,
+	&sensor_dev_attr_temp9_input.dev_attr.attr,
+	&sensor_dev_attr_temp10_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp3_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp4_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp5_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp6_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp7_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp8_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp9_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp10_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan1_max.dev_attr.attr,
+	&sensor_dev_attr_fan2_max.dev_attr.attr,
+	&sensor_dev_attr_fan3_max.dev_attr.attr,
+	&sensor_dev_attr_fan4_max.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan3_min.dev_attr.attr,
+	&sensor_dev_attr_fan4_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan3_input.dev_attr.attr,
+	&sensor_dev_attr_fan4_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan3_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan4_alarm.dev_attr.attr,
+	&sensor_dev_attr_force_pwm_max.dev_attr.attr,
+	&sensor_dev_attr_pwm1.dev_attr.attr,
+	&sensor_dev_attr_pwm2.dev_attr.attr,
+	&sensor_dev_attr_pwm3.dev_attr.attr,
+	&sensor_dev_attr_pwm4.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm4_auto_point1_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm4_auto_point2_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm4_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm4_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm2_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm3_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm4_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm4_auto_channels_temp.dev_attr.attr,
+	NULL
+};
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int adt7470_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	if (kind <= 0) {
+		int vendor, device, revision;
+
+		vendor = i2c_smbus_read_byte_data(client, ADT7470_REG_VENDOR);
+		if (vendor != ADT7470_VENDOR)
+			return -ENODEV;
+
+		device = i2c_smbus_read_byte_data(client, ADT7470_REG_DEVICE);
+		if (device != ADT7470_DEVICE)
+			return -ENODEV;
+
+		revision = i2c_smbus_read_byte_data(client,
+						    ADT7470_REG_REVISION);
+		if (revision != ADT7470_REVISION)
+			return -ENODEV;
+	} else
+		dev_dbg(&adapter->dev, "detection forced\n");
+
+	strlcpy(info->type, "adt7470", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int adt7470_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct adt7470_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct adt7470_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->lock);
+
+	dev_info(&client->dev, "%s chip found\n", client->name);
+
+	/* Initialize the ADT7470 chip */
+	adt7470_init_client(client);
+
+	/* Register sysfs hooks */
+	data->attrs.attrs = adt7470_attr;
+	if ((err = sysfs_create_group(&client->dev.kobj, &data->attrs)))
+		goto exit_free;
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	return 0;
+
+exit_remove:
+	sysfs_remove_group(&client->dev.kobj, &data->attrs);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+static int adt7470_remove(struct i2c_client *client)
+{
+	struct adt7470_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &data->attrs);
+	kfree(data);
+	return 0;
+}
+
+static int __init adt7470_init(void)
+{
+	return i2c_add_driver(&adt7470_driver);
+}
+
+static void __exit adt7470_exit(void)
+{
+	i2c_del_driver(&adt7470_driver);
+}
+
+MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>");
+MODULE_DESCRIPTION("ADT7470 driver");
+MODULE_LICENSE("GPL");
+
+module_init(adt7470_init);
+module_exit(adt7470_exit);
diff --git a/drivers/hwmon/adt7473.c b/drivers/hwmon/adt7473.c
new file mode 100644
index 0000000..18aa308
--- /dev/null
+++ b/drivers/hwmon/adt7473.c
@@ -0,0 +1,1189 @@
+/*
+ * A hwmon driver for the Analog Devices ADT7473
+ * Copyright (C) 2007 IBM
+ *
+ * Author: Darrick J. Wong <djwong@us.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/module.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/delay.h>
+#include <linux/log2.h>
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x2C, 0x2D, 0x2E, I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_1(adt7473);
+
+/* ADT7473 registers */
+#define ADT7473_REG_BASE_ADDR			0x20
+
+#define ADT7473_REG_VOLT_BASE_ADDR		0x21
+#define ADT7473_REG_VOLT_MIN_BASE_ADDR		0x46
+
+#define ADT7473_REG_TEMP_BASE_ADDR		0x25
+#define ADT7473_REG_TEMP_LIMITS_BASE_ADDR	0x4E
+#define ADT7473_REG_TEMP_TMIN_BASE_ADDR		0x67
+#define ADT7473_REG_TEMP_TMAX_BASE_ADDR		0x6A
+
+#define ADT7473_REG_FAN_BASE_ADDR		0x28
+#define ADT7473_REG_FAN_MIN_BASE_ADDR		0x54
+
+#define ADT7473_REG_PWM_BASE_ADDR		0x30
+#define	ADT7473_REG_PWM_MIN_BASE_ADDR		0x64
+#define ADT7473_REG_PWM_MAX_BASE_ADDR		0x38
+#define ADT7473_REG_PWM_BHVR_BASE_ADDR		0x5C
+#define		ADT7473_PWM_BHVR_MASK		0xE0
+#define		ADT7473_PWM_BHVR_SHIFT		5
+
+#define ADT7473_REG_CFG1			0x40
+#define 	ADT7473_CFG1_START		0x01
+#define		ADT7473_CFG1_READY		0x04
+#define ADT7473_REG_CFG2			0x73
+#define ADT7473_REG_CFG3			0x78
+#define ADT7473_REG_CFG4			0x7D
+#define		ADT7473_CFG4_MAX_DUTY_AT_OVT	0x08
+#define ADT7473_REG_CFG5			0x7C
+#define		ADT7473_CFG5_TEMP_TWOS		0x01
+#define		ADT7473_CFG5_TEMP_OFFSET	0x02
+
+#define ADT7473_REG_DEVICE			0x3D
+#define 	ADT7473_VENDOR			0x41
+#define ADT7473_REG_VENDOR			0x3E
+#define 	ADT7473_DEVICE			0x73
+#define ADT7473_REG_REVISION			0x3F
+#define 	ADT7473_REV_68			0x68
+#define 	ADT7473_REV_69			0x69
+
+#define ADT7473_REG_ALARM1			0x41
+#define		ADT7473_VCCP_ALARM		0x02
+#define		ADT7473_VCC_ALARM		0x04
+#define		ADT7473_R1T_ALARM		0x10
+#define		ADT7473_LT_ALARM		0x20
+#define		ADT7473_R2T_ALARM		0x40
+#define		ADT7473_OOL			0x80
+#define ADT7473_REG_ALARM2			0x42
+#define		ADT7473_OVT_ALARM		0x02
+#define		ADT7473_FAN1_ALARM		0x04
+#define		ADT7473_FAN2_ALARM		0x08
+#define		ADT7473_FAN3_ALARM		0x10
+#define		ADT7473_FAN4_ALARM		0x20
+#define		ADT7473_R1T_SHORT		0x40
+#define		ADT7473_R2T_SHORT		0x80
+
+#define ALARM2(x)	((x) << 8)
+
+#define ADT7473_VOLT_COUNT	2
+#define ADT7473_REG_VOLT(x)	(ADT7473_REG_VOLT_BASE_ADDR + (x))
+#define ADT7473_REG_VOLT_MIN(x)	(ADT7473_REG_VOLT_MIN_BASE_ADDR + ((x) * 2))
+#define ADT7473_REG_VOLT_MAX(x)	(ADT7473_REG_VOLT_MIN_BASE_ADDR + \
+				((x) * 2) + 1)
+
+#define ADT7473_TEMP_COUNT	3
+#define ADT7473_REG_TEMP(x)	(ADT7473_REG_TEMP_BASE_ADDR + (x))
+#define ADT7473_REG_TEMP_MIN(x) (ADT7473_REG_TEMP_LIMITS_BASE_ADDR + ((x) * 2))
+#define ADT7473_REG_TEMP_MAX(x) (ADT7473_REG_TEMP_LIMITS_BASE_ADDR + \
+				((x) * 2) + 1)
+#define ADT7473_REG_TEMP_TMIN(x)	(ADT7473_REG_TEMP_TMIN_BASE_ADDR + (x))
+#define ADT7473_REG_TEMP_TMAX(x)	(ADT7473_REG_TEMP_TMAX_BASE_ADDR + (x))
+
+#define ADT7473_FAN_COUNT	4
+#define ADT7473_REG_FAN(x)	(ADT7473_REG_FAN_BASE_ADDR + ((x) * 2))
+#define ADT7473_REG_FAN_MIN(x)	(ADT7473_REG_FAN_MIN_BASE_ADDR + ((x) * 2))
+
+#define ADT7473_PWM_COUNT	3
+#define ADT7473_REG_PWM(x)	(ADT7473_REG_PWM_BASE_ADDR + (x))
+#define ADT7473_REG_PWM_MAX(x)	(ADT7473_REG_PWM_MAX_BASE_ADDR + (x))
+#define ADT7473_REG_PWM_MIN(x)	(ADT7473_REG_PWM_MIN_BASE_ADDR + (x))
+#define ADT7473_REG_PWM_BHVR(x)	(ADT7473_REG_PWM_BHVR_BASE_ADDR + (x))
+
+/* How often do we reread sensors values? (In jiffies) */
+#define SENSOR_REFRESH_INTERVAL	(2 * HZ)
+
+/* How often do we reread sensor limit values? (In jiffies) */
+#define LIMIT_REFRESH_INTERVAL	(60 * HZ)
+
+/* datasheet says to divide this number by the fan reading to get fan rpm */
+#define FAN_PERIOD_TO_RPM(x)	((90000 * 60) / (x))
+#define FAN_RPM_TO_PERIOD	FAN_PERIOD_TO_RPM
+#define FAN_PERIOD_INVALID	65535
+#define FAN_DATA_VALID(x)	((x) && (x) != FAN_PERIOD_INVALID)
+
+#define ROUND_DIV(x, divisor)	(((x) + ((divisor) / 2)) / (divisor))
+
+struct adt7473_data {
+	struct device		*hwmon_dev;
+	struct attribute_group	attrs;
+	struct mutex		lock;
+	char			sensors_valid;
+	char			limits_valid;
+	unsigned long		sensors_last_updated;	/* In jiffies */
+	unsigned long		limits_last_updated;	/* In jiffies */
+
+	u8			volt[ADT7473_VOLT_COUNT];
+	s8			volt_min[ADT7473_VOLT_COUNT];
+	s8			volt_max[ADT7473_VOLT_COUNT];
+
+	s8			temp[ADT7473_TEMP_COUNT];
+	s8			temp_min[ADT7473_TEMP_COUNT];
+	s8			temp_max[ADT7473_TEMP_COUNT];
+	s8			temp_tmin[ADT7473_TEMP_COUNT];
+	/* This is called the !THERM limit in the datasheet */
+	s8			temp_tmax[ADT7473_TEMP_COUNT];
+
+	u16			fan[ADT7473_FAN_COUNT];
+	u16			fan_min[ADT7473_FAN_COUNT];
+
+	u8			pwm[ADT7473_PWM_COUNT];
+	u8			pwm_max[ADT7473_PWM_COUNT];
+	u8			pwm_min[ADT7473_PWM_COUNT];
+	u8			pwm_behavior[ADT7473_PWM_COUNT];
+
+	u8			temp_twos_complement;
+	u8			temp_offset;
+
+	u16			alarm;
+	u8			max_duty_at_overheat;
+};
+
+static int adt7473_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int adt7473_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
+static int adt7473_remove(struct i2c_client *client);
+
+static const struct i2c_device_id adt7473_id[] = {
+	{ "adt7473", adt7473 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adt7473_id);
+
+static struct i2c_driver adt7473_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "adt7473",
+	},
+	.probe		= adt7473_probe,
+	.remove		= adt7473_remove,
+	.id_table	= adt7473_id,
+	.detect		= adt7473_detect,
+	.address_data	= &addr_data,
+};
+
+/*
+ * 16-bit registers on the ADT7473 are low-byte first.  The data sheet says
+ * that the low byte must be read before the high byte.
+ */
+static inline int adt7473_read_word_data(struct i2c_client *client, u8 reg)
+{
+	u16 foo;
+	foo = i2c_smbus_read_byte_data(client, reg);
+	foo |= ((u16)i2c_smbus_read_byte_data(client, reg + 1) << 8);
+	return foo;
+}
+
+static inline int adt7473_write_word_data(struct i2c_client *client, u8 reg,
+					  u16 value)
+{
+	return i2c_smbus_write_byte_data(client, reg, value & 0xFF)
+	       && i2c_smbus_write_byte_data(client, reg + 1, value >> 8);
+}
+
+static void adt7473_init_client(struct i2c_client *client)
+{
+	int reg = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG1);
+
+	if (!(reg & ADT7473_CFG1_READY)) {
+		dev_err(&client->dev, "Chip not ready.\n");
+	} else {
+		/* start monitoring */
+		i2c_smbus_write_byte_data(client, ADT7473_REG_CFG1,
+					  reg | ADT7473_CFG1_START);
+	}
+}
+
+static struct adt7473_data *adt7473_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7473_data *data = i2c_get_clientdata(client);
+	unsigned long local_jiffies = jiffies;
+	u8 cfg;
+	int i;
+
+	mutex_lock(&data->lock);
+	if (time_before(local_jiffies, data->sensors_last_updated +
+		SENSOR_REFRESH_INTERVAL)
+		&& data->sensors_valid)
+		goto no_sensor_update;
+
+	for (i = 0; i < ADT7473_VOLT_COUNT; i++)
+		data->volt[i] = i2c_smbus_read_byte_data(client,
+						ADT7473_REG_VOLT(i));
+
+	/* Determine temperature encoding */
+	cfg = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG5);
+	data->temp_twos_complement = (cfg & ADT7473_CFG5_TEMP_TWOS);
+
+	/*
+	 * What does this do? it implies a variable temperature sensor
+	 * offset, but the datasheet doesn't say anything about this bit
+	 * and other parts of the datasheet imply that "offset64" mode
+	 * means that you shift temp values by -64 if the above bit was set.
+	 */
+	data->temp_offset = (cfg & ADT7473_CFG5_TEMP_OFFSET);
+
+	for (i = 0; i < ADT7473_TEMP_COUNT; i++)
+		data->temp[i] = i2c_smbus_read_byte_data(client,
+							 ADT7473_REG_TEMP(i));
+
+	for (i = 0; i < ADT7473_FAN_COUNT; i++)
+		data->fan[i] = adt7473_read_word_data(client,
+						ADT7473_REG_FAN(i));
+
+	for (i = 0; i < ADT7473_PWM_COUNT; i++)
+		data->pwm[i] = i2c_smbus_read_byte_data(client,
+						ADT7473_REG_PWM(i));
+
+	data->alarm = i2c_smbus_read_byte_data(client, ADT7473_REG_ALARM1);
+	if (data->alarm & ADT7473_OOL)
+		data->alarm |= ALARM2(i2c_smbus_read_byte_data(client,
+							 ADT7473_REG_ALARM2));
+
+	data->sensors_last_updated = local_jiffies;
+	data->sensors_valid = 1;
+
+no_sensor_update:
+	if (time_before(local_jiffies, data->limits_last_updated +
+		LIMIT_REFRESH_INTERVAL)
+		&& data->limits_valid)
+		goto out;
+
+	for (i = 0; i < ADT7473_VOLT_COUNT; i++) {
+		data->volt_min[i] = i2c_smbus_read_byte_data(client,
+						ADT7473_REG_VOLT_MIN(i));
+		data->volt_max[i] = i2c_smbus_read_byte_data(client,
+						ADT7473_REG_VOLT_MAX(i));
+	}
+
+	for (i = 0; i < ADT7473_TEMP_COUNT; i++) {
+		data->temp_min[i] = i2c_smbus_read_byte_data(client,
+						ADT7473_REG_TEMP_MIN(i));
+		data->temp_max[i] = i2c_smbus_read_byte_data(client,
+						ADT7473_REG_TEMP_MAX(i));
+		data->temp_tmin[i] = i2c_smbus_read_byte_data(client,
+						ADT7473_REG_TEMP_TMIN(i));
+		data->temp_tmax[i] = i2c_smbus_read_byte_data(client,
+						ADT7473_REG_TEMP_TMAX(i));
+	}
+
+	for (i = 0; i < ADT7473_FAN_COUNT; i++)
+		data->fan_min[i] = adt7473_read_word_data(client,
+						ADT7473_REG_FAN_MIN(i));
+
+	for (i = 0; i < ADT7473_PWM_COUNT; i++) {
+		data->pwm_max[i] = i2c_smbus_read_byte_data(client,
+						ADT7473_REG_PWM_MAX(i));
+		data->pwm_min[i] = i2c_smbus_read_byte_data(client,
+						ADT7473_REG_PWM_MIN(i));
+		data->pwm_behavior[i] = i2c_smbus_read_byte_data(client,
+						ADT7473_REG_PWM_BHVR(i));
+	}
+
+	i = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG4);
+	data->max_duty_at_overheat = !!(i & ADT7473_CFG4_MAX_DUTY_AT_OVT);
+
+	data->limits_last_updated = local_jiffies;
+	data->limits_valid = 1;
+
+out:
+	mutex_unlock(&data->lock);
+	return data;
+}
+
+/*
+ * Conversions
+ */
+
+/* IN are scaled acording to built-in resistors */
+static const int adt7473_scaling[] = {  /* .001 Volts */
+	2250, 3300
+};
+#define SCALE(val, from, to)	(((val) * (to) + ((from) / 2)) / (from))
+
+static int decode_volt(int volt_index, u8 raw)
+{
+	return SCALE(raw, 192, adt7473_scaling[volt_index]);
+}
+
+static u8 encode_volt(int volt_index, int cooked)
+{
+	int raw = SCALE(cooked, adt7473_scaling[volt_index], 192);
+	return SENSORS_LIMIT(raw, 0, 255);
+}
+
+static ssize_t show_volt_min(struct device *dev,
+			     struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7473_data *data = adt7473_update_device(dev);
+	return sprintf(buf, "%d\n",
+		       decode_volt(attr->index, data->volt_min[attr->index]));
+}
+
+static ssize_t set_volt_min(struct device *dev,
+			    struct device_attribute *devattr,
+			    const char *buf,
+			    size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7473_data *data = i2c_get_clientdata(client);
+	long volt;
+
+	if (strict_strtol(buf, 10, &volt))
+		return -EINVAL;
+
+	volt = encode_volt(attr->index, volt);
+
+	mutex_lock(&data->lock);
+	data->volt_min[attr->index] = volt;
+	i2c_smbus_write_byte_data(client, ADT7473_REG_VOLT_MIN(attr->index),
+				  volt);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_volt_max(struct device *dev,
+			     struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7473_data *data = adt7473_update_device(dev);
+	return sprintf(buf, "%d\n",
+		       decode_volt(attr->index, data->volt_max[attr->index]));
+}
+
+static ssize_t set_volt_max(struct device *dev,
+			    struct device_attribute *devattr,
+			    const char *buf,
+			    size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7473_data *data = i2c_get_clientdata(client);
+	long volt;
+
+	if (strict_strtol(buf, 10, &volt))
+		return -EINVAL;
+
+	volt = encode_volt(attr->index, volt);
+
+	mutex_lock(&data->lock);
+	data->volt_max[attr->index] = volt;
+	i2c_smbus_write_byte_data(client, ADT7473_REG_VOLT_MAX(attr->index),
+				  volt);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_volt(struct device *dev, struct device_attribute *devattr,
+			 char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7473_data *data = adt7473_update_device(dev);
+
+	return sprintf(buf, "%d\n",
+		       decode_volt(attr->index, data->volt[attr->index]));
+}
+
+/*
+ * This chip can report temperature data either as a two's complement
+ * number in the range -128 to 127, or as an unsigned number that must
+ * be offset by 64.
+ */
+static int decode_temp(u8 twos_complement, u8 raw)
+{
+	return twos_complement ? (s8)raw : raw - 64;
+}
+
+static u8 encode_temp(u8 twos_complement, int cooked)
+{
+	u8 ret = twos_complement ? cooked & 0xFF : cooked + 64;
+	return SENSORS_LIMIT(ret, 0, 255);
+}
+
+static ssize_t show_temp_min(struct device *dev,
+			     struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7473_data *data = adt7473_update_device(dev);
+	return sprintf(buf, "%d\n", 1000 * decode_temp(
+						data->temp_twos_complement,
+						data->temp_min[attr->index]));
+}
+
+static ssize_t set_temp_min(struct device *dev,
+			    struct device_attribute *devattr,
+			    const char *buf,
+			    size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7473_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	temp = ROUND_DIV(temp, 1000);
+	temp = encode_temp(data->temp_twos_complement, temp);
+
+	mutex_lock(&data->lock);
+	data->temp_min[attr->index] = temp;
+	i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_MIN(attr->index),
+				  temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_temp_max(struct device *dev,
+			     struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7473_data *data = adt7473_update_device(dev);
+	return sprintf(buf, "%d\n", 1000 * decode_temp(
+						data->temp_twos_complement,
+						data->temp_max[attr->index]));
+}
+
+static ssize_t set_temp_max(struct device *dev,
+			    struct device_attribute *devattr,
+			    const char *buf,
+			    size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7473_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	temp = ROUND_DIV(temp, 1000);
+	temp = encode_temp(data->temp_twos_complement, temp);
+
+	mutex_lock(&data->lock);
+	data->temp_max[attr->index] = temp;
+	i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_MAX(attr->index),
+				  temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
+			 char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7473_data *data = adt7473_update_device(dev);
+	return sprintf(buf, "%d\n", 1000 * decode_temp(
+						data->temp_twos_complement,
+						data->temp[attr->index]));
+}
+
+static ssize_t show_fan_min(struct device *dev,
+			    struct device_attribute *devattr,
+			    char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7473_data *data = adt7473_update_device(dev);
+
+	if (FAN_DATA_VALID(data->fan_min[attr->index]))
+		return sprintf(buf, "%d\n",
+			       FAN_PERIOD_TO_RPM(data->fan_min[attr->index]));
+	else
+		return sprintf(buf, "0\n");
+}
+
+static ssize_t set_fan_min(struct device *dev,
+			   struct device_attribute *devattr,
+			   const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7473_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp) || !temp)
+		return -EINVAL;
+
+	temp = FAN_RPM_TO_PERIOD(temp);
+	temp = SENSORS_LIMIT(temp, 1, 65534);
+
+	mutex_lock(&data->lock);
+	data->fan_min[attr->index] = temp;
+	adt7473_write_word_data(client, ADT7473_REG_FAN_MIN(attr->index), temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
+			char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7473_data *data = adt7473_update_device(dev);
+
+	if (FAN_DATA_VALID(data->fan[attr->index]))
+		return sprintf(buf, "%d\n",
+			       FAN_PERIOD_TO_RPM(data->fan[attr->index]));
+	else
+		return sprintf(buf, "0\n");
+}
+
+static ssize_t show_max_duty_at_crit(struct device *dev,
+				     struct device_attribute *devattr,
+				     char *buf)
+{
+	struct adt7473_data *data = adt7473_update_device(dev);
+	return sprintf(buf, "%d\n", data->max_duty_at_overheat);
+}
+
+static ssize_t set_max_duty_at_crit(struct device *dev,
+				    struct device_attribute *devattr,
+				    const char *buf,
+				    size_t count)
+{
+	u8 reg;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7473_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	mutex_lock(&data->lock);
+	data->max_duty_at_overheat = !!temp;
+	reg = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG4);
+	if (temp)
+		reg |= ADT7473_CFG4_MAX_DUTY_AT_OVT;
+	else
+		reg &= ~ADT7473_CFG4_MAX_DUTY_AT_OVT;
+	i2c_smbus_write_byte_data(client, ADT7473_REG_CFG4, reg);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr,
+			char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7473_data *data = adt7473_update_device(dev);
+	return sprintf(buf, "%d\n", data->pwm[attr->index]);
+}
+
+static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr,
+			const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7473_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	temp = SENSORS_LIMIT(temp, 0, 255);
+
+	mutex_lock(&data->lock);
+	data->pwm[attr->index] = temp;
+	i2c_smbus_write_byte_data(client, ADT7473_REG_PWM(attr->index), temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_pwm_max(struct device *dev,
+			    struct device_attribute *devattr,
+			    char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7473_data *data = adt7473_update_device(dev);
+	return sprintf(buf, "%d\n", data->pwm_max[attr->index]);
+}
+
+static ssize_t set_pwm_max(struct device *dev,
+			   struct device_attribute *devattr,
+			   const char *buf,
+			   size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7473_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	temp = SENSORS_LIMIT(temp, 0, 255);
+
+	mutex_lock(&data->lock);
+	data->pwm_max[attr->index] = temp;
+	i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_MAX(attr->index),
+				  temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_pwm_min(struct device *dev,
+			    struct device_attribute *devattr,
+			    char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7473_data *data = adt7473_update_device(dev);
+	return sprintf(buf, "%d\n", data->pwm_min[attr->index]);
+}
+
+static ssize_t set_pwm_min(struct device *dev,
+			   struct device_attribute *devattr,
+			   const char *buf,
+			   size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7473_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	temp = SENSORS_LIMIT(temp, 0, 255);
+
+	mutex_lock(&data->lock);
+	data->pwm_min[attr->index] = temp;
+	i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_MIN(attr->index),
+				  temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_temp_tmax(struct device *dev,
+			      struct device_attribute *devattr,
+			      char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7473_data *data = adt7473_update_device(dev);
+	return sprintf(buf, "%d\n", 1000 * decode_temp(
+						data->temp_twos_complement,
+						data->temp_tmax[attr->index]));
+}
+
+static ssize_t set_temp_tmax(struct device *dev,
+			     struct device_attribute *devattr,
+			     const char *buf,
+			     size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7473_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	temp = ROUND_DIV(temp, 1000);
+	temp = encode_temp(data->temp_twos_complement, temp);
+
+	mutex_lock(&data->lock);
+	data->temp_tmax[attr->index] = temp;
+	i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_TMAX(attr->index),
+				  temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_temp_tmin(struct device *dev,
+			      struct device_attribute *devattr,
+			      char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7473_data *data = adt7473_update_device(dev);
+	return sprintf(buf, "%d\n", 1000 * decode_temp(
+						data->temp_twos_complement,
+						data->temp_tmin[attr->index]));
+}
+
+static ssize_t set_temp_tmin(struct device *dev,
+			     struct device_attribute *devattr,
+			     const char *buf,
+			     size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7473_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	temp = ROUND_DIV(temp, 1000);
+	temp = encode_temp(data->temp_twos_complement, temp);
+
+	mutex_lock(&data->lock);
+	data->temp_tmin[attr->index] = temp;
+	i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_TMIN(attr->index),
+				  temp);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_pwm_enable(struct device *dev,
+			       struct device_attribute *devattr,
+			       char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7473_data *data = adt7473_update_device(dev);
+
+	switch (data->pwm_behavior[attr->index] >> ADT7473_PWM_BHVR_SHIFT) {
+	case 3:
+		return sprintf(buf, "0\n");
+	case 7:
+		return sprintf(buf, "1\n");
+	default:
+		return sprintf(buf, "2\n");
+	}
+}
+
+static ssize_t set_pwm_enable(struct device *dev,
+			      struct device_attribute *devattr,
+			      const char *buf,
+			      size_t count)
+{
+	u8 reg;
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7473_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	switch (temp) {
+	case 0:
+		temp = 3;
+		break;
+	case 1:
+		temp = 7;
+		break;
+	case 2:
+		/* Enter automatic mode with fans off */
+		temp = 4;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	mutex_lock(&data->lock);
+	reg = i2c_smbus_read_byte_data(client,
+				       ADT7473_REG_PWM_BHVR(attr->index));
+	reg = (temp << ADT7473_PWM_BHVR_SHIFT) |
+	      (reg & ~ADT7473_PWM_BHVR_MASK);
+	i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_BHVR(attr->index),
+				  reg);
+	data->pwm_behavior[attr->index] = reg;
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_pwm_auto_temp(struct device *dev,
+				  struct device_attribute *devattr,
+				  char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7473_data *data = adt7473_update_device(dev);
+	int bhvr = data->pwm_behavior[attr->index] >> ADT7473_PWM_BHVR_SHIFT;
+
+	switch (bhvr) {
+	case 3:
+	case 4:
+	case 7:
+		return sprintf(buf, "0\n");
+	case 0:
+	case 1:
+	case 5:
+	case 6:
+		return sprintf(buf, "%d\n", bhvr + 1);
+	case 2:
+		return sprintf(buf, "4\n");
+	}
+	/* shouldn't ever get here */
+	BUG();
+}
+
+static ssize_t set_pwm_auto_temp(struct device *dev,
+				 struct device_attribute *devattr,
+				 const char *buf,
+				 size_t count)
+{
+	u8 reg;
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct adt7473_data *data = i2c_get_clientdata(client);
+	long temp;
+
+	if (strict_strtol(buf, 10, &temp))
+		return -EINVAL;
+
+	switch (temp) {
+	case 1:
+	case 2:
+	case 6:
+	case 7:
+		temp--;
+		break;
+	case 0:
+		temp = 4;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	mutex_lock(&data->lock);
+	reg = i2c_smbus_read_byte_data(client,
+				       ADT7473_REG_PWM_BHVR(attr->index));
+	reg = (temp << ADT7473_PWM_BHVR_SHIFT) |
+	      (reg & ~ADT7473_PWM_BHVR_MASK);
+	i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_BHVR(attr->index),
+				  reg);
+	data->pwm_behavior[attr->index] = reg;
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static ssize_t show_alarm(struct device *dev,
+			  struct device_attribute *devattr,
+			  char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct adt7473_data *data = adt7473_update_device(dev);
+
+	if (data->alarm & attr->index)
+		return sprintf(buf, "1\n");
+	else
+		return sprintf(buf, "0\n");
+}
+
+
+static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, show_volt_max,
+			  set_volt_max, 0);
+static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, show_volt_max,
+			  set_volt_max, 1);
+
+static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO, show_volt_min,
+			  set_volt_min, 0);
+static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, show_volt_min,
+			  set_volt_min, 1);
+
+static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_volt, NULL, 0);
+static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_volt, NULL, 1);
+
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7473_VCCP_ALARM);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7473_VCC_ALARM);
+
+static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max,
+			  set_temp_max, 0);
+static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_max,
+			  set_temp_max, 1);
+static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_temp_max,
+			  set_temp_max, 2);
+
+static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_min,
+			  set_temp_min, 0);
+static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_min,
+			  set_temp_min, 1);
+static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO, show_temp_min,
+			  set_temp_min, 2);
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
+
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7473_R1T_ALARM | ALARM2(ADT7473_R1T_SHORT));
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7473_LT_ALARM);
+static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL,
+			  ADT7473_R2T_ALARM | ALARM2(ADT7473_R2T_SHORT));
+
+static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min,
+			  set_fan_min, 0);
+static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min,
+			  set_fan_min, 1);
+static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min,
+			  set_fan_min, 2);
+static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min,
+			  set_fan_min, 3);
+
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3);
+
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL,
+			  ALARM2(ADT7473_FAN1_ALARM));
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL,
+			  ALARM2(ADT7473_FAN2_ALARM));
+static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL,
+			  ALARM2(ADT7473_FAN3_ALARM));
+static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL,
+			  ALARM2(ADT7473_FAN4_ALARM));
+
+static SENSOR_DEVICE_ATTR(pwm_use_point2_pwm_at_crit, S_IWUSR | S_IRUGO,
+			  show_max_duty_at_crit, set_max_duty_at_crit, 0);
+
+static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0);
+static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1);
+static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2);
+
+static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO,
+			  show_pwm_min, set_pwm_min, 0);
+static SENSOR_DEVICE_ATTR(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO,
+			  show_pwm_min, set_pwm_min, 1);
+static SENSOR_DEVICE_ATTR(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO,
+			  show_pwm_min, set_pwm_min, 2);
+
+static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO,
+			  show_pwm_max, set_pwm_max, 0);
+static SENSOR_DEVICE_ATTR(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO,
+			  show_pwm_max, set_pwm_max, 1);
+static SENSOR_DEVICE_ATTR(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO,
+			  show_pwm_max, set_pwm_max, 2);
+
+static SENSOR_DEVICE_ATTR(temp1_auto_point1_temp, S_IWUSR | S_IRUGO,
+			  show_temp_tmin, set_temp_tmin, 0);
+static SENSOR_DEVICE_ATTR(temp2_auto_point1_temp, S_IWUSR | S_IRUGO,
+			  show_temp_tmin, set_temp_tmin, 1);
+static SENSOR_DEVICE_ATTR(temp3_auto_point1_temp, S_IWUSR | S_IRUGO,
+			  show_temp_tmin, set_temp_tmin, 2);
+
+static SENSOR_DEVICE_ATTR(temp1_auto_point2_temp, S_IWUSR | S_IRUGO,
+			  show_temp_tmax, set_temp_tmax, 0);
+static SENSOR_DEVICE_ATTR(temp2_auto_point2_temp, S_IWUSR | S_IRUGO,
+			  show_temp_tmax, set_temp_tmax, 1);
+static SENSOR_DEVICE_ATTR(temp3_auto_point2_temp, S_IWUSR | S_IRUGO,
+			  show_temp_tmax, set_temp_tmax, 2);
+
+static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
+			  set_pwm_enable, 0);
+static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
+			  set_pwm_enable, 1);
+static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
+			  set_pwm_enable, 2);
+
+static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IWUSR | S_IRUGO,
+			  show_pwm_auto_temp, set_pwm_auto_temp, 0);
+static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IWUSR | S_IRUGO,
+			  show_pwm_auto_temp, set_pwm_auto_temp, 1);
+static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IWUSR | S_IRUGO,
+			  show_pwm_auto_temp, set_pwm_auto_temp, 2);
+
+static struct attribute *adt7473_attr[] =
+{
+	&sensor_dev_attr_in1_max.dev_attr.attr,
+	&sensor_dev_attr_in2_max.dev_attr.attr,
+	&sensor_dev_attr_in1_min.dev_attr.attr,
+	&sensor_dev_attr_in2_min.dev_attr.attr,
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in1_alarm.dev_attr.attr,
+	&sensor_dev_attr_in2_alarm.dev_attr.attr,
+
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp3_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_temp2_min.dev_attr.attr,
+	&sensor_dev_attr_temp3_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp3_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp3_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr,
+
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan3_min.dev_attr.attr,
+	&sensor_dev_attr_fan4_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan3_input.dev_attr.attr,
+	&sensor_dev_attr_fan4_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan3_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan4_alarm.dev_attr.attr,
+
+	&sensor_dev_attr_pwm_use_point2_pwm_at_crit.dev_attr.attr,
+
+	&sensor_dev_attr_pwm1.dev_attr.attr,
+	&sensor_dev_attr_pwm2.dev_attr.attr,
+	&sensor_dev_attr_pwm3.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
+
+	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm2_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm3_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,
+
+	NULL
+};
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int adt7473_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	if (kind <= 0) {
+		int vendor, device, revision;
+
+		vendor = i2c_smbus_read_byte_data(client, ADT7473_REG_VENDOR);
+		if (vendor != ADT7473_VENDOR)
+			return -ENODEV;
+
+		device = i2c_smbus_read_byte_data(client, ADT7473_REG_DEVICE);
+		if (device != ADT7473_DEVICE)
+			return -ENODEV;
+
+		revision = i2c_smbus_read_byte_data(client,
+						    ADT7473_REG_REVISION);
+		if (revision != ADT7473_REV_68 && revision != ADT7473_REV_69)
+			return -ENODEV;
+	} else
+		dev_dbg(&adapter->dev, "detection forced\n");
+
+	strlcpy(info->type, "adt7473", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int adt7473_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct adt7473_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct adt7473_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->lock);
+
+	dev_info(&client->dev, "%s chip found\n", client->name);
+
+	/* Initialize the ADT7473 chip */
+	adt7473_init_client(client);
+
+	/* Register sysfs hooks */
+	data->attrs.attrs = adt7473_attr;
+	err = sysfs_create_group(&client->dev.kobj, &data->attrs);
+	if (err)
+		goto exit_free;
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	return 0;
+
+exit_remove:
+	sysfs_remove_group(&client->dev.kobj, &data->attrs);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+static int adt7473_remove(struct i2c_client *client)
+{
+	struct adt7473_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &data->attrs);
+	kfree(data);
+	return 0;
+}
+
+static int __init adt7473_init(void)
+{
+	return i2c_add_driver(&adt7473_driver);
+}
+
+static void __exit adt7473_exit(void)
+{
+	i2c_del_driver(&adt7473_driver);
+}
+
+MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>");
+MODULE_DESCRIPTION("ADT7473 driver");
+MODULE_LICENSE("GPL");
+
+module_init(adt7473_init);
+module_exit(adt7473_exit);
diff --git a/drivers/hwmon/ams/Makefile b/drivers/hwmon/ams/Makefile
new file mode 100644
index 0000000..41c95b2
--- /dev/null
+++ b/drivers/hwmon/ams/Makefile
@@ -0,0 +1,8 @@
+#
+# Makefile for Apple Motion Sensor driver
+#
+
+ams-y					:= ams-core.o ams-input.o
+ams-$(CONFIG_SENSORS_AMS_PMU)		+= ams-pmu.o
+ams-$(CONFIG_SENSORS_AMS_I2C)		+= ams-i2c.o
+obj-$(CONFIG_SENSORS_AMS)		+= ams.o
diff --git a/drivers/hwmon/ams/ams-core.c b/drivers/hwmon/ams/ams-core.c
new file mode 100644
index 0000000..6c9ace1
--- /dev/null
+++ b/drivers/hwmon/ams/ams-core.c
@@ -0,0 +1,247 @@
+/*
+ * Apple Motion Sensor driver
+ *
+ * Copyright (C) 2005 Stelian Pop (stelian@popies.net)
+ * Copyright (C) 2006 Michael Hanselmann (linux-kernel@hansmi.ch)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/of_platform.h>
+#include <asm/pmac_pfunc.h>
+
+#include "ams.h"
+
+/* There is only one motion sensor per machine */
+struct ams ams_info;
+
+static unsigned int verbose;
+module_param(verbose, bool, 0644);
+MODULE_PARM_DESC(verbose, "Show free falls and shocks in kernel output");
+
+/* Call with ams_info.lock held! */
+void ams_sensors(s8 *x, s8 *y, s8 *z)
+{
+	u32 orient = ams_info.vflag? ams_info.orient1 : ams_info.orient2;
+
+	if (orient & 0x80)
+		/* X and Y swapped */
+		ams_info.get_xyz(y, x, z);
+	else
+		ams_info.get_xyz(x, y, z);
+
+	if (orient & 0x04)
+		*z = ~(*z);
+	if (orient & 0x02)
+		*y = ~(*y);
+	if (orient & 0x01)
+		*x = ~(*x);
+}
+
+static ssize_t ams_show_current(struct device *dev,
+	struct device_attribute *attr, char *buf)
+{
+	s8 x, y, z;
+
+	mutex_lock(&ams_info.lock);
+	ams_sensors(&x, &y, &z);
+	mutex_unlock(&ams_info.lock);
+
+	return snprintf(buf, PAGE_SIZE, "%d %d %d\n", x, y, z);
+}
+
+static DEVICE_ATTR(current, S_IRUGO, ams_show_current, NULL);
+
+static void ams_handle_irq(void *data)
+{
+	enum ams_irq irq = *((enum ams_irq *)data);
+
+	spin_lock(&ams_info.irq_lock);
+
+	ams_info.worker_irqs |= irq;
+	schedule_work(&ams_info.worker);
+
+	spin_unlock(&ams_info.irq_lock);
+}
+
+static enum ams_irq ams_freefall_irq_data = AMS_IRQ_FREEFALL;
+static struct pmf_irq_client ams_freefall_client = {
+	.owner = THIS_MODULE,
+	.handler = ams_handle_irq,
+	.data = &ams_freefall_irq_data,
+};
+
+static enum ams_irq ams_shock_irq_data = AMS_IRQ_SHOCK;
+static struct pmf_irq_client ams_shock_client = {
+	.owner = THIS_MODULE,
+	.handler = ams_handle_irq,
+	.data = &ams_shock_irq_data,
+};
+
+/* Once hard disk parking is implemented in the kernel, this function can
+ * trigger it.
+ */
+static void ams_worker(struct work_struct *work)
+{
+	unsigned long flags;
+	u8 irqs_to_clear;
+
+	mutex_lock(&ams_info.lock);
+
+	spin_lock_irqsave(&ams_info.irq_lock, flags);
+	irqs_to_clear = ams_info.worker_irqs;
+
+	if (ams_info.worker_irqs & AMS_IRQ_FREEFALL) {
+		if (verbose)
+			printk(KERN_INFO "ams: freefall detected!\n");
+
+		ams_info.worker_irqs &= ~AMS_IRQ_FREEFALL;
+	}
+
+	if (ams_info.worker_irqs & AMS_IRQ_SHOCK) {
+		if (verbose)
+			printk(KERN_INFO "ams: shock detected!\n");
+
+		ams_info.worker_irqs &= ~AMS_IRQ_SHOCK;
+	}
+
+	spin_unlock_irqrestore(&ams_info.irq_lock, flags);
+
+	ams_info.clear_irq(irqs_to_clear);
+
+	mutex_unlock(&ams_info.lock);
+}
+
+/* Call with ams_info.lock held! */
+int ams_sensor_attach(void)
+{
+	int result;
+	const u32 *prop;
+
+	/* Get orientation */
+	prop = of_get_property(ams_info.of_node, "orientation", NULL);
+	if (!prop)
+		return -ENODEV;
+	ams_info.orient1 = *prop;
+	ams_info.orient2 = *(prop + 1);
+
+	/* Register freefall interrupt handler */
+	result = pmf_register_irq_client(ams_info.of_node,
+			"accel-int-1",
+			&ams_freefall_client);
+	if (result < 0)
+		return -ENODEV;
+
+	/* Reset saved irqs */
+	ams_info.worker_irqs = 0;
+
+	/* Register shock interrupt handler */
+	result = pmf_register_irq_client(ams_info.of_node,
+			"accel-int-2",
+			&ams_shock_client);
+	if (result < 0)
+		goto release_freefall;
+
+	/* Create device */
+	ams_info.of_dev = of_platform_device_create(ams_info.of_node, "ams", NULL);
+	if (!ams_info.of_dev) {
+		result = -ENODEV;
+		goto release_shock;
+	}
+
+	/* Create attributes */
+	result = device_create_file(&ams_info.of_dev->dev, &dev_attr_current);
+	if (result)
+		goto release_of;
+
+	ams_info.vflag = !!(ams_info.get_vendor() & 0x10);
+
+	/* Init input device */
+	result = ams_input_init();
+	if (result)
+		goto release_device_file;
+
+	return result;
+release_device_file:
+	device_remove_file(&ams_info.of_dev->dev, &dev_attr_current);
+release_of:
+	of_device_unregister(ams_info.of_dev);
+release_shock:
+	pmf_unregister_irq_client(&ams_shock_client);
+release_freefall:
+	pmf_unregister_irq_client(&ams_freefall_client);
+	return result;
+}
+
+int __init ams_init(void)
+{
+	struct device_node *np;
+
+	spin_lock_init(&ams_info.irq_lock);
+	mutex_init(&ams_info.lock);
+	INIT_WORK(&ams_info.worker, ams_worker);
+
+#ifdef CONFIG_SENSORS_AMS_I2C
+	np = of_find_node_by_name(NULL, "accelerometer");
+	if (np && of_device_is_compatible(np, "AAPL,accelerometer_1"))
+		/* Found I2C motion sensor */
+		return ams_i2c_init(np);
+#endif
+
+#ifdef CONFIG_SENSORS_AMS_PMU
+	np = of_find_node_by_name(NULL, "sms");
+	if (np && of_device_is_compatible(np, "sms"))
+		/* Found PMU motion sensor */
+		return ams_pmu_init(np);
+#endif
+	return -ENODEV;
+}
+
+void ams_exit(void)
+{
+	/* Remove input device */
+	ams_input_exit();
+
+	/* Remove attributes */
+	device_remove_file(&ams_info.of_dev->dev, &dev_attr_current);
+
+	/* Shut down implementation */
+	ams_info.exit();
+
+	/* Flush interrupt worker
+	 *
+	 * We do this after ams_info.exit(), because an interrupt might
+	 * have arrived before disabling them.
+	 */
+	flush_scheduled_work();
+
+	/* Remove device */
+	of_device_unregister(ams_info.of_dev);
+
+	/* Remove handler */
+	pmf_unregister_irq_client(&ams_shock_client);
+	pmf_unregister_irq_client(&ams_freefall_client);
+}
+
+MODULE_AUTHOR("Stelian Pop, Michael Hanselmann");
+MODULE_DESCRIPTION("Apple Motion Sensor driver");
+MODULE_LICENSE("GPL");
+
+module_init(ams_init);
+module_exit(ams_exit);
diff --git a/drivers/hwmon/ams/ams-i2c.c b/drivers/hwmon/ams/ams-i2c.c
new file mode 100644
index 0000000..2cbf8a6
--- /dev/null
+++ b/drivers/hwmon/ams/ams-i2c.c
@@ -0,0 +1,275 @@
+/*
+ * Apple Motion Sensor driver (I2C variant)
+ *
+ * Copyright (C) 2005 Stelian Pop (stelian@popies.net)
+ * Copyright (C) 2006 Michael Hanselmann (linux-kernel@hansmi.ch)
+ *
+ * Clean room implementation based on the reverse engineered Mac OS X driver by
+ * Johannes Berg <johannes@sipsolutions.net>, documentation available at
+ * http://johannes.sipsolutions.net/PowerBook/Apple_Motion_Sensor_Specification
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+
+#include "ams.h"
+
+/* AMS registers */
+#define AMS_COMMAND	0x00	/* command register */
+#define AMS_STATUS	0x01	/* status register */
+#define AMS_CTRL1	0x02	/* read control 1 (number of values) */
+#define AMS_CTRL2	0x03	/* read control 2 (offset?) */
+#define AMS_CTRL3	0x04	/* read control 3 (size of each value?) */
+#define AMS_DATA1	0x05	/* read data 1 */
+#define AMS_DATA2	0x06	/* read data 2 */
+#define AMS_DATA3	0x07	/* read data 3 */
+#define AMS_DATA4	0x08	/* read data 4 */
+#define AMS_DATAX	0x20	/* data X */
+#define AMS_DATAY	0x21	/* data Y */
+#define AMS_DATAZ	0x22	/* data Z */
+#define AMS_FREEFALL	0x24	/* freefall int control */
+#define AMS_SHOCK	0x25	/* shock int control */
+#define AMS_SENSLOW	0x26	/* sensitivity low limit */
+#define AMS_SENSHIGH	0x27	/* sensitivity high limit */
+#define AMS_CTRLX	0x28	/* control X */
+#define AMS_CTRLY	0x29	/* control Y */
+#define AMS_CTRLZ	0x2A	/* control Z */
+#define AMS_UNKNOWN1	0x2B	/* unknown 1 */
+#define AMS_UNKNOWN2	0x2C	/* unknown 2 */
+#define AMS_UNKNOWN3	0x2D	/* unknown 3 */
+#define AMS_VENDOR	0x2E	/* vendor */
+
+/* AMS commands - use with the AMS_COMMAND register */
+enum ams_i2c_cmd {
+	AMS_CMD_NOOP = 0,
+	AMS_CMD_VERSION,
+	AMS_CMD_READMEM,
+	AMS_CMD_WRITEMEM,
+	AMS_CMD_ERASEMEM,
+	AMS_CMD_READEE,
+	AMS_CMD_WRITEEE,
+	AMS_CMD_RESET,
+	AMS_CMD_START,
+};
+
+static int ams_i2c_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int ams_i2c_remove(struct i2c_client *client);
+
+static const struct i2c_device_id ams_id[] = {
+	{ "ams", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, ams_id);
+
+static struct i2c_driver ams_i2c_driver = {
+	.driver = {
+		.name   = "ams",
+		.owner  = THIS_MODULE,
+	},
+	.probe          = ams_i2c_probe,
+	.remove         = ams_i2c_remove,
+	.id_table       = ams_id,
+};
+
+static s32 ams_i2c_read(u8 reg)
+{
+	return i2c_smbus_read_byte_data(ams_info.i2c_client, reg);
+}
+
+static int ams_i2c_write(u8 reg, u8 value)
+{
+	return i2c_smbus_write_byte_data(ams_info.i2c_client, reg, value);
+}
+
+static int ams_i2c_cmd(enum ams_i2c_cmd cmd)
+{
+	s32 result;
+	int count = 3;
+
+	ams_i2c_write(AMS_COMMAND, cmd);
+	msleep(5);
+
+	while (count--) {
+		result = ams_i2c_read(AMS_COMMAND);
+		if (result == 0 || result & 0x80)
+			return 0;
+
+		schedule_timeout_uninterruptible(HZ / 20);
+	}
+
+	return -1;
+}
+
+static void ams_i2c_set_irq(enum ams_irq reg, char enable)
+{
+	if (reg & AMS_IRQ_FREEFALL) {
+		u8 val = ams_i2c_read(AMS_CTRLX);
+		if (enable)
+			val |= 0x80;
+		else
+			val &= ~0x80;
+		ams_i2c_write(AMS_CTRLX, val);
+	}
+
+	if (reg & AMS_IRQ_SHOCK) {
+		u8 val = ams_i2c_read(AMS_CTRLY);
+		if (enable)
+			val |= 0x80;
+		else
+			val &= ~0x80;
+		ams_i2c_write(AMS_CTRLY, val);
+	}
+
+	if (reg & AMS_IRQ_GLOBAL) {
+		u8 val = ams_i2c_read(AMS_CTRLZ);
+		if (enable)
+			val |= 0x80;
+		else
+			val &= ~0x80;
+		ams_i2c_write(AMS_CTRLZ, val);
+	}
+}
+
+static void ams_i2c_clear_irq(enum ams_irq reg)
+{
+	if (reg & AMS_IRQ_FREEFALL)
+		ams_i2c_write(AMS_FREEFALL, 0);
+
+	if (reg & AMS_IRQ_SHOCK)
+		ams_i2c_write(AMS_SHOCK, 0);
+}
+
+static u8 ams_i2c_get_vendor(void)
+{
+	return ams_i2c_read(AMS_VENDOR);
+}
+
+static void ams_i2c_get_xyz(s8 *x, s8 *y, s8 *z)
+{
+	*x = ams_i2c_read(AMS_DATAX);
+	*y = ams_i2c_read(AMS_DATAY);
+	*z = ams_i2c_read(AMS_DATAZ);
+}
+
+static int ams_i2c_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	int vmaj, vmin;
+	int result;
+
+	/* There can be only one */
+	if (unlikely(ams_info.has_device))
+		return -ENODEV;
+
+	ams_info.i2c_client = client;
+
+	if (ams_i2c_cmd(AMS_CMD_RESET)) {
+		printk(KERN_INFO "ams: Failed to reset the device\n");
+		return -ENODEV;
+	}
+
+	if (ams_i2c_cmd(AMS_CMD_START)) {
+		printk(KERN_INFO "ams: Failed to start the device\n");
+		return -ENODEV;
+	}
+
+	/* get version/vendor information */
+	ams_i2c_write(AMS_CTRL1, 0x02);
+	ams_i2c_write(AMS_CTRL2, 0x85);
+	ams_i2c_write(AMS_CTRL3, 0x01);
+
+	ams_i2c_cmd(AMS_CMD_READMEM);
+
+	vmaj = ams_i2c_read(AMS_DATA1);
+	vmin = ams_i2c_read(AMS_DATA2);
+	if (vmaj != 1 || vmin != 52) {
+		printk(KERN_INFO "ams: Incorrect device version (%d.%d)\n",
+			vmaj, vmin);
+		return -ENODEV;
+	}
+
+	ams_i2c_cmd(AMS_CMD_VERSION);
+
+	vmaj = ams_i2c_read(AMS_DATA1);
+	vmin = ams_i2c_read(AMS_DATA2);
+	if (vmaj != 0 || vmin != 1) {
+		printk(KERN_INFO "ams: Incorrect firmware version (%d.%d)\n",
+			vmaj, vmin);
+		return -ENODEV;
+	}
+
+	/* Disable interrupts */
+	ams_i2c_set_irq(AMS_IRQ_ALL, 0);
+
+	result = ams_sensor_attach();
+	if (result < 0)
+		return result;
+
+	/* Set default values */
+	ams_i2c_write(AMS_SENSLOW, 0x15);
+	ams_i2c_write(AMS_SENSHIGH, 0x60);
+	ams_i2c_write(AMS_CTRLX, 0x08);
+	ams_i2c_write(AMS_CTRLY, 0x0F);
+	ams_i2c_write(AMS_CTRLZ, 0x4F);
+	ams_i2c_write(AMS_UNKNOWN1, 0x14);
+
+	/* Clear interrupts */
+	ams_i2c_clear_irq(AMS_IRQ_ALL);
+
+	ams_info.has_device = 1;
+
+	/* Enable interrupts */
+	ams_i2c_set_irq(AMS_IRQ_ALL, 1);
+
+	printk(KERN_INFO "ams: Found I2C based motion sensor\n");
+
+	return 0;
+}
+
+static int ams_i2c_remove(struct i2c_client *client)
+{
+	if (ams_info.has_device) {
+		/* Disable interrupts */
+		ams_i2c_set_irq(AMS_IRQ_ALL, 0);
+
+		/* Clear interrupts */
+		ams_i2c_clear_irq(AMS_IRQ_ALL);
+
+		printk(KERN_INFO "ams: Unloading\n");
+
+		ams_info.has_device = 0;
+	}
+
+	return 0;
+}
+
+static void ams_i2c_exit(void)
+{
+	i2c_del_driver(&ams_i2c_driver);
+}
+
+int __init ams_i2c_init(struct device_node *np)
+{
+	int result;
+
+	/* Set implementation stuff */
+	ams_info.of_node = np;
+	ams_info.exit = ams_i2c_exit;
+	ams_info.get_vendor = ams_i2c_get_vendor;
+	ams_info.get_xyz = ams_i2c_get_xyz;
+	ams_info.clear_irq = ams_i2c_clear_irq;
+	ams_info.bustype = BUS_I2C;
+
+	result = i2c_add_driver(&ams_i2c_driver);
+
+	return result;
+}
diff --git a/drivers/hwmon/ams/ams-input.c b/drivers/hwmon/ams/ams-input.c
new file mode 100644
index 0000000..8a71239
--- /dev/null
+++ b/drivers/hwmon/ams/ams-input.c
@@ -0,0 +1,157 @@
+/*
+ * Apple Motion Sensor driver (joystick emulation)
+ *
+ * Copyright (C) 2005 Stelian Pop (stelian@popies.net)
+ * Copyright (C) 2006 Michael Hanselmann (linux-kernel@hansmi.ch)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/module.h>
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+
+#include "ams.h"
+
+static unsigned int joystick;
+module_param(joystick, bool, S_IRUGO);
+MODULE_PARM_DESC(joystick, "Enable the input class device on module load");
+
+static unsigned int invert;
+module_param(invert, bool, S_IWUSR | S_IRUGO);
+MODULE_PARM_DESC(invert, "Invert input data on X and Y axis");
+
+static DEFINE_MUTEX(ams_input_mutex);
+
+static void ams_idev_poll(struct input_polled_dev *dev)
+{
+	struct input_dev *idev = dev->input;
+	s8 x, y, z;
+
+	mutex_lock(&ams_info.lock);
+
+	ams_sensors(&x, &y, &z);
+
+	x -= ams_info.xcalib;
+	y -= ams_info.ycalib;
+	z -= ams_info.zcalib;
+
+	input_report_abs(idev, ABS_X, invert ? -x : x);
+	input_report_abs(idev, ABS_Y, invert ? -y : y);
+	input_report_abs(idev, ABS_Z, z);
+
+	input_sync(idev);
+
+	mutex_unlock(&ams_info.lock);
+}
+
+/* Call with ams_info.lock held! */
+static int ams_input_enable(void)
+{
+	struct input_dev *input;
+	s8 x, y, z;
+	int error;
+
+	ams_sensors(&x, &y, &z);
+	ams_info.xcalib = x;
+	ams_info.ycalib = y;
+	ams_info.zcalib = z;
+
+	ams_info.idev = input_allocate_polled_device();
+	if (!ams_info.idev)
+		return -ENOMEM;
+
+	ams_info.idev->poll = ams_idev_poll;
+	ams_info.idev->poll_interval = 25;
+
+	input = ams_info.idev->input;
+	input->name = "Apple Motion Sensor";
+	input->id.bustype = ams_info.bustype;
+	input->id.vendor = 0;
+	input->dev.parent = &ams_info.of_dev->dev;
+
+	input_set_abs_params(input, ABS_X, -50, 50, 3, 0);
+	input_set_abs_params(input, ABS_Y, -50, 50, 3, 0);
+	input_set_abs_params(input, ABS_Z, -50, 50, 3, 0);
+
+	set_bit(EV_ABS, input->evbit);
+	set_bit(EV_KEY, input->evbit);
+	set_bit(BTN_TOUCH, input->keybit);
+
+	error = input_register_polled_device(ams_info.idev);
+	if (error) {
+		input_free_polled_device(ams_info.idev);
+		ams_info.idev = NULL;
+		return error;
+	}
+
+	joystick = 1;
+
+	return 0;
+}
+
+static void ams_input_disable(void)
+{
+	if (ams_info.idev) {
+		input_unregister_polled_device(ams_info.idev);
+		input_free_polled_device(ams_info.idev);
+		ams_info.idev = NULL;
+	}
+
+	joystick = 0;
+}
+
+static ssize_t ams_input_show_joystick(struct device *dev,
+	struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "%d\n", joystick);
+}
+
+static ssize_t ams_input_store_joystick(struct device *dev,
+	struct device_attribute *attr, const char *buf, size_t count)
+{
+	unsigned long enable;
+	int error = 0;
+
+	if (strict_strtoul(buf, 0, &enable) || enable > 1)
+		return -EINVAL;
+
+	mutex_lock(&ams_input_mutex);
+
+	if (enable != joystick) {
+		if (enable)
+			error = ams_input_enable();
+		else
+			ams_input_disable();
+	}
+
+	mutex_unlock(&ams_input_mutex);
+
+	return error ? error : count;
+}
+
+static DEVICE_ATTR(joystick, S_IRUGO | S_IWUSR,
+	ams_input_show_joystick, ams_input_store_joystick);
+
+int ams_input_init(void)
+{
+	if (joystick)
+		ams_input_enable();
+
+	return device_create_file(&ams_info.of_dev->dev, &dev_attr_joystick);
+}
+
+void ams_input_exit(void)
+{
+	device_remove_file(&ams_info.of_dev->dev, &dev_attr_joystick);
+
+	mutex_lock(&ams_input_mutex);
+	ams_input_disable();
+	mutex_unlock(&ams_input_mutex);
+}
diff --git a/drivers/hwmon/ams/ams-pmu.c b/drivers/hwmon/ams/ams-pmu.c
new file mode 100644
index 0000000..fb18b3d
--- /dev/null
+++ b/drivers/hwmon/ams/ams-pmu.c
@@ -0,0 +1,199 @@
+/*
+ * Apple Motion Sensor driver (PMU variant)
+ *
+ * Copyright (C) 2006 Michael Hanselmann (linux-kernel@hansmi.ch)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/adb.h>
+#include <linux/pmu.h>
+
+#include "ams.h"
+
+/* Attitude */
+#define AMS_X			0x00
+#define AMS_Y			0x01
+#define AMS_Z			0x02
+
+/* Not exactly known, maybe chip vendor */
+#define AMS_VENDOR		0x03
+
+/* Freefall registers */
+#define AMS_FF_CLEAR		0x04
+#define AMS_FF_ENABLE		0x05
+#define AMS_FF_LOW_LIMIT	0x06
+#define AMS_FF_DEBOUNCE		0x07
+
+/* Shock registers */
+#define AMS_SHOCK_CLEAR		0x08
+#define AMS_SHOCK_ENABLE	0x09
+#define AMS_SHOCK_HIGH_LIMIT	0x0a
+#define AMS_SHOCK_DEBOUNCE	0x0b
+
+/* Global interrupt and power control register */
+#define AMS_CONTROL		0x0c
+
+static u8 ams_pmu_cmd;
+
+static void ams_pmu_req_complete(struct adb_request *req)
+{
+	complete((struct completion *)req->arg);
+}
+
+/* Only call this function from task context */
+static void ams_pmu_set_register(u8 reg, u8 value)
+{
+	static struct adb_request req;
+	DECLARE_COMPLETION(req_complete);
+
+	req.arg = &req_complete;
+	if (pmu_request(&req, ams_pmu_req_complete, 4, ams_pmu_cmd, 0x00, reg, value))
+		return;
+
+	wait_for_completion(&req_complete);
+}
+
+/* Only call this function from task context */
+static u8 ams_pmu_get_register(u8 reg)
+{
+	static struct adb_request req;
+	DECLARE_COMPLETION(req_complete);
+
+	req.arg = &req_complete;
+	if (pmu_request(&req, ams_pmu_req_complete, 3, ams_pmu_cmd, 0x01, reg))
+		return 0;
+
+	wait_for_completion(&req_complete);
+
+	if (req.reply_len > 0)
+		return req.reply[0];
+	else
+		return 0;
+}
+
+/* Enables or disables the specified interrupts */
+static void ams_pmu_set_irq(enum ams_irq reg, char enable)
+{
+	if (reg & AMS_IRQ_FREEFALL) {
+		u8 val = ams_pmu_get_register(AMS_FF_ENABLE);
+		if (enable)
+			val |= 0x80;
+		else
+			val &= ~0x80;
+		ams_pmu_set_register(AMS_FF_ENABLE, val);
+	}
+
+	if (reg & AMS_IRQ_SHOCK) {
+		u8 val = ams_pmu_get_register(AMS_SHOCK_ENABLE);
+		if (enable)
+			val |= 0x80;
+		else
+			val &= ~0x80;
+		ams_pmu_set_register(AMS_SHOCK_ENABLE, val);
+	}
+
+	if (reg & AMS_IRQ_GLOBAL) {
+		u8 val = ams_pmu_get_register(AMS_CONTROL);
+		if (enable)
+			val |= 0x80;
+		else
+			val &= ~0x80;
+		ams_pmu_set_register(AMS_CONTROL, val);
+	}
+}
+
+static void ams_pmu_clear_irq(enum ams_irq reg)
+{
+	if (reg & AMS_IRQ_FREEFALL)
+		ams_pmu_set_register(AMS_FF_CLEAR, 0x00);
+
+	if (reg & AMS_IRQ_SHOCK)
+		ams_pmu_set_register(AMS_SHOCK_CLEAR, 0x00);
+}
+
+static u8 ams_pmu_get_vendor(void)
+{
+	return ams_pmu_get_register(AMS_VENDOR);
+}
+
+static void ams_pmu_get_xyz(s8 *x, s8 *y, s8 *z)
+{
+	*x = ams_pmu_get_register(AMS_X);
+	*y = ams_pmu_get_register(AMS_Y);
+	*z = ams_pmu_get_register(AMS_Z);
+}
+
+static void ams_pmu_exit(void)
+{
+	/* Disable interrupts */
+	ams_pmu_set_irq(AMS_IRQ_ALL, 0);
+
+	/* Clear interrupts */
+	ams_pmu_clear_irq(AMS_IRQ_ALL);
+
+	ams_info.has_device = 0;
+
+	printk(KERN_INFO "ams: Unloading\n");
+}
+
+int __init ams_pmu_init(struct device_node *np)
+{
+	const u32 *prop;
+	int result;
+
+	/* Set implementation stuff */
+	ams_info.of_node = np;
+	ams_info.exit = ams_pmu_exit;
+	ams_info.get_vendor = ams_pmu_get_vendor;
+	ams_info.get_xyz = ams_pmu_get_xyz;
+	ams_info.clear_irq = ams_pmu_clear_irq;
+	ams_info.bustype = BUS_HOST;
+
+	/* Get PMU command, should be 0x4e, but we can never know */
+	prop = of_get_property(ams_info.of_node, "reg", NULL);
+	if (!prop)
+		return -ENODEV;
+
+	ams_pmu_cmd = ((*prop) >> 8) & 0xff;
+
+	/* Disable interrupts */
+	ams_pmu_set_irq(AMS_IRQ_ALL, 0);
+
+	/* Clear interrupts */
+	ams_pmu_clear_irq(AMS_IRQ_ALL);
+
+	result = ams_sensor_attach();
+	if (result < 0)
+		return result;
+
+	/* Set default values */
+	ams_pmu_set_register(AMS_FF_LOW_LIMIT, 0x15);
+	ams_pmu_set_register(AMS_FF_ENABLE, 0x08);
+	ams_pmu_set_register(AMS_FF_DEBOUNCE, 0x14);
+
+	ams_pmu_set_register(AMS_SHOCK_HIGH_LIMIT, 0x60);
+	ams_pmu_set_register(AMS_SHOCK_ENABLE, 0x0f);
+	ams_pmu_set_register(AMS_SHOCK_DEBOUNCE, 0x14);
+
+	ams_pmu_set_register(AMS_CONTROL, 0x4f);
+
+	/* Clear interrupts */
+	ams_pmu_clear_irq(AMS_IRQ_ALL);
+
+	ams_info.has_device = 1;
+
+	/* Enable interrupts */
+	ams_pmu_set_irq(AMS_IRQ_ALL, 1);
+
+	printk(KERN_INFO "ams: Found PMU based motion sensor\n");
+
+	return 0;
+}
diff --git a/drivers/hwmon/ams/ams.h b/drivers/hwmon/ams/ams.h
new file mode 100644
index 0000000..5ed387b
--- /dev/null
+++ b/drivers/hwmon/ams/ams.h
@@ -0,0 +1,69 @@
+#include <linux/i2c.h>
+#include <linux/input-polldev.h>
+#include <linux/kthread.h>
+#include <linux/mutex.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+#include <linux/of_device.h>
+
+enum ams_irq {
+	AMS_IRQ_FREEFALL = 0x01,
+	AMS_IRQ_SHOCK = 0x02,
+	AMS_IRQ_GLOBAL = 0x04,
+	AMS_IRQ_ALL =
+		AMS_IRQ_FREEFALL |
+		AMS_IRQ_SHOCK |
+		AMS_IRQ_GLOBAL,
+};
+
+struct ams {
+	/* Locks */
+	spinlock_t irq_lock;
+	struct mutex lock;
+
+	/* General properties */
+	struct device_node *of_node;
+	struct of_device *of_dev;
+	char has_device;
+	char vflag;
+	u32 orient1;
+	u32 orient2;
+
+	/* Interrupt worker */
+	struct work_struct worker;
+	u8 worker_irqs;
+
+	/* Implementation
+	 *
+	 * Only call these functions with the main lock held.
+	 */
+	void (*exit)(void);
+
+	void (*get_xyz)(s8 *x, s8 *y, s8 *z);
+	u8 (*get_vendor)(void);
+
+	void (*clear_irq)(enum ams_irq reg);
+
+#ifdef CONFIG_SENSORS_AMS_I2C
+	/* I2C properties */
+	struct i2c_client *i2c_client;
+#endif
+
+	/* Joystick emulation */
+	struct input_polled_dev *idev;
+	__u16 bustype;
+
+	/* calibrated null values */
+	int xcalib, ycalib, zcalib;
+};
+
+extern struct ams ams_info;
+
+extern void ams_sensors(s8 *x, s8 *y, s8 *z);
+extern int ams_sensor_attach(void);
+
+extern int ams_pmu_init(struct device_node *np);
+extern int ams_i2c_init(struct device_node *np);
+
+extern int ams_input_init(void);
+extern void ams_input_exit(void);
diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
new file mode 100644
index 0000000..086c2a5
--- /dev/null
+++ b/drivers/hwmon/applesmc.c
@@ -0,0 +1,1567 @@
+/*
+ * drivers/hwmon/applesmc.c - driver for Apple's SMC (accelerometer, temperature
+ * sensors, fan control, keyboard backlight control) used in Intel-based Apple
+ * computers.
+ *
+ * Copyright (C) 2007 Nicolas Boichat <nicolas@boichat.ch>
+ *
+ * Based on hdaps.c driver:
+ * Copyright (C) 2005 Robert Love <rml@novell.com>
+ * Copyright (C) 2005 Jesper Juhl <jesper.juhl@gmail.com>
+ *
+ * Fan control based on smcFanControl:
+ * Copyright (C) 2006 Hendrik Holtmann <holtmann@mac.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License v2 as published by the
+ * Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/input-polldev.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/timer.h>
+#include <linux/dmi.h>
+#include <linux/mutex.h>
+#include <linux/hwmon-sysfs.h>
+#include <asm/io.h>
+#include <linux/leds.h>
+#include <linux/hwmon.h>
+#include <linux/workqueue.h>
+
+/* data port used by Apple SMC */
+#define APPLESMC_DATA_PORT	0x300
+/* command/status port used by Apple SMC */
+#define APPLESMC_CMD_PORT	0x304
+
+#define APPLESMC_NR_PORTS	32 /* 0x300-0x31f */
+
+#define APPLESMC_MAX_DATA_LENGTH 32
+
+#define APPLESMC_MIN_WAIT	0x0040
+#define APPLESMC_MAX_WAIT	0x8000
+
+#define APPLESMC_STATUS_MASK	0x0f
+#define APPLESMC_READ_CMD	0x10
+#define APPLESMC_WRITE_CMD	0x11
+#define APPLESMC_GET_KEY_BY_INDEX_CMD	0x12
+#define APPLESMC_GET_KEY_TYPE_CMD	0x13
+
+#define KEY_COUNT_KEY		"#KEY" /* r-o ui32 */
+
+#define LIGHT_SENSOR_LEFT_KEY	"ALV0" /* r-o {alv (6-10 bytes) */
+#define LIGHT_SENSOR_RIGHT_KEY	"ALV1" /* r-o {alv (6-10 bytes) */
+#define BACKLIGHT_KEY		"LKSB" /* w-o {lkb (2 bytes) */
+
+#define CLAMSHELL_KEY		"MSLD" /* r-o ui8 (unused) */
+
+#define MOTION_SENSOR_X_KEY	"MO_X" /* r-o sp78 (2 bytes) */
+#define MOTION_SENSOR_Y_KEY	"MO_Y" /* r-o sp78 (2 bytes) */
+#define MOTION_SENSOR_Z_KEY	"MO_Z" /* r-o sp78 (2 bytes) */
+#define MOTION_SENSOR_KEY	"MOCN" /* r/w ui16 */
+
+#define FANS_COUNT		"FNum" /* r-o ui8 */
+#define FANS_MANUAL		"FS! " /* r-w ui16 */
+#define FAN_ACTUAL_SPEED	"F0Ac" /* r-o fpe2 (2 bytes) */
+#define FAN_MIN_SPEED		"F0Mn" /* r-o fpe2 (2 bytes) */
+#define FAN_MAX_SPEED		"F0Mx" /* r-o fpe2 (2 bytes) */
+#define FAN_SAFE_SPEED		"F0Sf" /* r-o fpe2 (2 bytes) */
+#define FAN_TARGET_SPEED	"F0Tg" /* r-w fpe2 (2 bytes) */
+#define FAN_POSITION		"F0ID" /* r-o char[16] */
+
+/*
+ * Temperature sensors keys (sp78 - 2 bytes).
+ */
+static const char* temperature_sensors_sets[][36] = {
+/* Set 0: Macbook Pro */
+	{ "TA0P", "TB0T", "TC0D", "TC0P", "TG0H", "TG0P", "TG0T", "Th0H",
+	  "Th1H", "Tm0P", "Ts0P", "Ts1P", NULL },
+/* Set 1: Macbook2 set */
+	{ "TB0T", "TC0D", "TC0P", "TM0P", "TN0P", "TN1P", "TTF0", "Th0H",
+	  "Th0S", "Th1H", NULL },
+/* Set 2: Macbook set */
+	{ "TB0T", "TC0D", "TC0P", "TM0P", "TN0P", "TN1P", "Th0H", "Th0S",
+	  "Th1H", "Ts0P", NULL },
+/* Set 3: Macmini set */
+	{ "TC0D", "TC0P", NULL },
+/* Set 4: Mac Pro (2 x Quad-Core) */
+	{ "TA0P", "TCAG", "TCAH", "TCBG", "TCBH", "TC0C", "TC0D", "TC0P",
+	  "TC1C", "TC1D", "TC2C", "TC2D", "TC3C", "TC3D", "THTG", "TH0P",
+	  "TH1P", "TH2P", "TH3P", "TMAP", "TMAS", "TMBS", "TM0P", "TM0S",
+	  "TM1P", "TM1S", "TM2P", "TM2S", "TM3S", "TM8P", "TM8S", "TM9P",
+	  "TM9S", "TN0H", "TS0C", NULL },
+/* Set 5: iMac */
+	{ "TC0D", "TA0P", "TG0P", "TG0D", "TG0H", "TH0P", "Tm0P", "TO0P",
+	  "Tp0C", NULL },
+/* Set 6: Macbook3 set */
+	{ "TB0T", "TC0D", "TC0P", "TM0P", "TN0P", "TTF0", "TW0P", "Th0H",
+	  "Th0S", "Th1H", NULL },
+/* Set 7: Macbook Air */
+	{ "TB0T", "TB1S", "TB1T", "TB2S", "TB2T", "TC0D", "TC0P", "TCFP",
+	  "TTF0", "TW0P", "Th0H", "Tp0P", "TpFP", "Ts0P", "Ts0S", NULL },
+/* Set 8: Macbook Pro 4,1 (Penryn) */
+	{ "TB0T", "TC0D", "TC0P", "TG0D", "TG0H", "TTF0", "TW0P", "Th0H",
+	  "Th1H", "Th2H", "Tm0P", "Ts0P", NULL },
+/* Set 9: Macbook Pro 3,1 (Santa Rosa) */
+	{ "TALP", "TB0T", "TC0D", "TC0P", "TG0D", "TG0H", "TTF0", "TW0P",
+	  "Th0H", "Th1H", "Th2H", "Tm0P", "Ts0P", NULL },
+/* Set 10: iMac 5,1 */
+	{ "TA0P", "TC0D", "TC0P", "TG0D", "TH0P", "TO0P", "Tm0P", NULL },
+/* Set 11: Macbook 5,1 */
+	{ "TB0T", "TB1T", "TB2T", "TB3T", "TC0D", "TC0P", "TN0D", "TN0P",
+	  "TTF0", "Th0H", "Th1H", "ThFH", "Ts0P", "Ts0S", NULL },
+/* Set 12: Macbook Pro 5,1 */
+	{ "TB0T", "TB1T", "TB2T", "TB3T", "TC0D", "TC0F", "TC0P", "TG0D",
+	  "TG0F", "TG0H", "TG0P", "TG0T", "TG1H", "TN0D", "TN0P", "TTF0",
+	  "Th2H", "Tm0P", "Ts0P", "Ts0S", NULL },
+/* Set 13: iMac 8,1 */
+	{ "TA0P", "TC0D", "TC0H", "TC0P", "TG0D", "TG0H", "TG0P", "TH0P",
+	  "TL0P", "TO0P", "TW0P", "Tm0P", "Tp0P", NULL },
+/* Set 14: iMac 6,1 */
+	{ "TA0P", "TC0D", "TC0H", "TC0P", "TG0D", "TG0H", "TG0P", "TH0P",
+	  "TO0P", "Tp0P", NULL },
+};
+
+/* List of keys used to read/write fan speeds */
+static const char* fan_speed_keys[] = {
+	FAN_ACTUAL_SPEED,
+	FAN_MIN_SPEED,
+	FAN_MAX_SPEED,
+	FAN_SAFE_SPEED,
+	FAN_TARGET_SPEED
+};
+
+#define INIT_TIMEOUT_MSECS	5000	/* wait up to 5s for device init ... */
+#define INIT_WAIT_MSECS		50	/* ... in 50ms increments */
+
+#define APPLESMC_POLL_INTERVAL	50	/* msecs */
+#define APPLESMC_INPUT_FUZZ	4	/* input event threshold */
+#define APPLESMC_INPUT_FLAT	4
+
+#define SENSOR_X 0
+#define SENSOR_Y 1
+#define SENSOR_Z 2
+
+/* Structure to be passed to DMI_MATCH function */
+struct dmi_match_data {
+/* Indicates whether this computer has an accelerometer. */
+	int accelerometer;
+/* Indicates whether this computer has light sensors and keyboard backlight. */
+	int light;
+/* Indicates which temperature sensors set to use. */
+	int temperature_set;
+};
+
+static const int debug;
+static struct platform_device *pdev;
+static s16 rest_x;
+static s16 rest_y;
+static struct device *hwmon_dev;
+static struct input_polled_dev *applesmc_idev;
+
+/* Indicates whether this computer has an accelerometer. */
+static unsigned int applesmc_accelerometer;
+
+/* Indicates whether this computer has light sensors and keyboard backlight. */
+static unsigned int applesmc_light;
+
+/* Indicates which temperature sensors set to use. */
+static unsigned int applesmc_temperature_set;
+
+static DEFINE_MUTEX(applesmc_lock);
+
+/*
+ * Last index written to key_at_index sysfs file, and value to use for all other
+ * key_at_index_* sysfs files.
+ */
+static unsigned int key_at_index;
+
+static struct workqueue_struct *applesmc_led_wq;
+
+/*
+ * __wait_status - Wait up to 32ms for the status port to get a certain value
+ * (masked with 0x0f), returning zero if the value is obtained.  Callers must
+ * hold applesmc_lock.
+ */
+static int __wait_status(u8 val)
+{
+	int us;
+
+	val = val & APPLESMC_STATUS_MASK;
+
+	for (us = APPLESMC_MIN_WAIT; us < APPLESMC_MAX_WAIT; us <<= 1) {
+		udelay(us);
+		if ((inb(APPLESMC_CMD_PORT) & APPLESMC_STATUS_MASK) == val) {
+			if (debug)
+				printk(KERN_DEBUG
+					"Waited %d us for status %x\n",
+					2 * us - APPLESMC_MIN_WAIT, val);
+			return 0;
+		}
+	}
+
+	printk(KERN_WARNING "applesmc: wait status failed: %x != %x\n",
+						val, inb(APPLESMC_CMD_PORT));
+
+	return -EIO;
+}
+
+/*
+ * special treatment of command port - on newer macbooks, it seems necessary
+ * to resend the command byte before polling the status again. Callers must
+ * hold applesmc_lock.
+ */
+static int send_command(u8 cmd)
+{
+	int us;
+	for (us = APPLESMC_MIN_WAIT; us < APPLESMC_MAX_WAIT; us <<= 1) {
+		outb(cmd, APPLESMC_CMD_PORT);
+		udelay(us);
+		if ((inb(APPLESMC_CMD_PORT) & APPLESMC_STATUS_MASK) == 0x0c)
+			return 0;
+	}
+	printk(KERN_WARNING "applesmc: command failed: %x -> %x\n",
+		cmd, inb(APPLESMC_CMD_PORT));
+	return -EIO;
+}
+
+/*
+ * applesmc_read_key - reads len bytes from a given key, and put them in buffer.
+ * Returns zero on success or a negative error on failure. Callers must
+ * hold applesmc_lock.
+ */
+static int applesmc_read_key(const char* key, u8* buffer, u8 len)
+{
+	int i;
+
+	if (len > APPLESMC_MAX_DATA_LENGTH) {
+		printk(KERN_ERR	"applesmc_read_key: cannot read more than "
+					"%d bytes\n", APPLESMC_MAX_DATA_LENGTH);
+		return -EINVAL;
+	}
+
+	if (send_command(APPLESMC_READ_CMD))
+		return -EIO;
+
+	for (i = 0; i < 4; i++) {
+		outb(key[i], APPLESMC_DATA_PORT);
+		if (__wait_status(0x04))
+			return -EIO;
+	}
+	if (debug)
+		printk(KERN_DEBUG "<%s", key);
+
+	outb(len, APPLESMC_DATA_PORT);
+	if (debug)
+		printk(KERN_DEBUG ">%x", len);
+
+	for (i = 0; i < len; i++) {
+		if (__wait_status(0x05))
+			return -EIO;
+		buffer[i] = inb(APPLESMC_DATA_PORT);
+		if (debug)
+			printk(KERN_DEBUG "<%x", buffer[i]);
+	}
+	if (debug)
+		printk(KERN_DEBUG "\n");
+
+	return 0;
+}
+
+/*
+ * applesmc_write_key - writes len bytes from buffer to a given key.
+ * Returns zero on success or a negative error on failure. Callers must
+ * hold applesmc_lock.
+ */
+static int applesmc_write_key(const char* key, u8* buffer, u8 len)
+{
+	int i;
+
+	if (len > APPLESMC_MAX_DATA_LENGTH) {
+		printk(KERN_ERR	"applesmc_write_key: cannot write more than "
+					"%d bytes\n", APPLESMC_MAX_DATA_LENGTH);
+		return -EINVAL;
+	}
+
+	if (send_command(APPLESMC_WRITE_CMD))
+		return -EIO;
+
+	for (i = 0; i < 4; i++) {
+		outb(key[i], APPLESMC_DATA_PORT);
+		if (__wait_status(0x04))
+			return -EIO;
+	}
+
+	outb(len, APPLESMC_DATA_PORT);
+
+	for (i = 0; i < len; i++) {
+		if (__wait_status(0x04))
+			return -EIO;
+		outb(buffer[i], APPLESMC_DATA_PORT);
+	}
+
+	return 0;
+}
+
+/*
+ * applesmc_get_key_at_index - get key at index, and put the result in key
+ * (char[6]). Returns zero on success or a negative error on failure. Callers
+ * must hold applesmc_lock.
+ */
+static int applesmc_get_key_at_index(int index, char* key)
+{
+	int i;
+	u8 readkey[4];
+	readkey[0] = index >> 24;
+	readkey[1] = index >> 16;
+	readkey[2] = index >> 8;
+	readkey[3] = index;
+
+	if (send_command(APPLESMC_GET_KEY_BY_INDEX_CMD))
+		return -EIO;
+
+	for (i = 0; i < 4; i++) {
+		outb(readkey[i], APPLESMC_DATA_PORT);
+		if (__wait_status(0x04))
+			return -EIO;
+	}
+
+	outb(4, APPLESMC_DATA_PORT);
+
+	for (i = 0; i < 4; i++) {
+		if (__wait_status(0x05))
+			return -EIO;
+		key[i] = inb(APPLESMC_DATA_PORT);
+	}
+	key[4] = 0;
+
+	return 0;
+}
+
+/*
+ * applesmc_get_key_type - get key type, and put the result in type (char[6]).
+ * Returns zero on success or a negative error on failure. Callers must
+ * hold applesmc_lock.
+ */
+static int applesmc_get_key_type(char* key, char* type)
+{
+	int i;
+
+	if (send_command(APPLESMC_GET_KEY_TYPE_CMD))
+		return -EIO;
+
+	for (i = 0; i < 4; i++) {
+		outb(key[i], APPLESMC_DATA_PORT);
+		if (__wait_status(0x04))
+			return -EIO;
+	}
+
+	outb(6, APPLESMC_DATA_PORT);
+
+	for (i = 0; i < 6; i++) {
+		if (__wait_status(0x05))
+			return -EIO;
+		type[i] = inb(APPLESMC_DATA_PORT);
+	}
+	type[5] = 0;
+
+	return 0;
+}
+
+/*
+ * applesmc_read_motion_sensor - Read motion sensor (X, Y or Z). Callers must
+ * hold applesmc_lock.
+ */
+static int applesmc_read_motion_sensor(int index, s16* value)
+{
+	u8 buffer[2];
+	int ret;
+
+	switch (index) {
+	case SENSOR_X:
+		ret = applesmc_read_key(MOTION_SENSOR_X_KEY, buffer, 2);
+		break;
+	case SENSOR_Y:
+		ret = applesmc_read_key(MOTION_SENSOR_Y_KEY, buffer, 2);
+		break;
+	case SENSOR_Z:
+		ret = applesmc_read_key(MOTION_SENSOR_Z_KEY, buffer, 2);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	*value = ((s16)buffer[0] << 8) | buffer[1];
+
+	return ret;
+}
+
+/*
+ * applesmc_device_init - initialize the accelerometer.  Returns zero on success
+ * and negative error code on failure.  Can sleep.
+ */
+static int applesmc_device_init(void)
+{
+	int total, ret = -ENXIO;
+	u8 buffer[2];
+
+	if (!applesmc_accelerometer)
+		return 0;
+
+	mutex_lock(&applesmc_lock);
+
+	for (total = INIT_TIMEOUT_MSECS; total > 0; total -= INIT_WAIT_MSECS) {
+		if (debug)
+			printk(KERN_DEBUG "applesmc try %d\n", total);
+		if (!applesmc_read_key(MOTION_SENSOR_KEY, buffer, 2) &&
+				(buffer[0] != 0x00 || buffer[1] != 0x00)) {
+			if (total == INIT_TIMEOUT_MSECS) {
+				printk(KERN_DEBUG "applesmc: device has"
+						" already been initialized"
+						" (0x%02x, 0x%02x).\n",
+						buffer[0], buffer[1]);
+			} else {
+				printk(KERN_DEBUG "applesmc: device"
+						" successfully initialized"
+						" (0x%02x, 0x%02x).\n",
+						buffer[0], buffer[1]);
+			}
+			ret = 0;
+			goto out;
+		}
+		buffer[0] = 0xe0;
+		buffer[1] = 0x00;
+		applesmc_write_key(MOTION_SENSOR_KEY, buffer, 2);
+		msleep(INIT_WAIT_MSECS);
+	}
+
+	printk(KERN_WARNING "applesmc: failed to init the device\n");
+
+out:
+	mutex_unlock(&applesmc_lock);
+	return ret;
+}
+
+/*
+ * applesmc_get_fan_count - get the number of fans. Callers must NOT hold
+ * applesmc_lock.
+ */
+static int applesmc_get_fan_count(void)
+{
+	int ret;
+	u8 buffer[1];
+
+	mutex_lock(&applesmc_lock);
+
+	ret = applesmc_read_key(FANS_COUNT, buffer, 1);
+
+	mutex_unlock(&applesmc_lock);
+	if (ret)
+		return ret;
+	else
+		return buffer[0];
+}
+
+/* Device model stuff */
+static int applesmc_probe(struct platform_device *dev)
+{
+	int ret;
+
+	ret = applesmc_device_init();
+	if (ret)
+		return ret;
+
+	printk(KERN_INFO "applesmc: device successfully initialized.\n");
+	return 0;
+}
+
+static int applesmc_resume(struct platform_device *dev)
+{
+	return applesmc_device_init();
+}
+
+static struct platform_driver applesmc_driver = {
+	.probe = applesmc_probe,
+	.resume = applesmc_resume,
+	.driver	= {
+		.name = "applesmc",
+		.owner = THIS_MODULE,
+	},
+};
+
+/*
+ * applesmc_calibrate - Set our "resting" values.  Callers must
+ * hold applesmc_lock.
+ */
+static void applesmc_calibrate(void)
+{
+	applesmc_read_motion_sensor(SENSOR_X, &rest_x);
+	applesmc_read_motion_sensor(SENSOR_Y, &rest_y);
+	rest_x = -rest_x;
+}
+
+static void applesmc_idev_poll(struct input_polled_dev *dev)
+{
+	struct input_dev *idev = dev->input;
+	s16 x, y;
+
+	mutex_lock(&applesmc_lock);
+
+	if (applesmc_read_motion_sensor(SENSOR_X, &x))
+		goto out;
+	if (applesmc_read_motion_sensor(SENSOR_Y, &y))
+		goto out;
+
+	x = -x;
+	input_report_abs(idev, ABS_X, x - rest_x);
+	input_report_abs(idev, ABS_Y, y - rest_y);
+	input_sync(idev);
+
+out:
+	mutex_unlock(&applesmc_lock);
+}
+
+/* Sysfs Files */
+
+static ssize_t applesmc_name_show(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "applesmc\n");
+}
+
+static ssize_t applesmc_position_show(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	int ret;
+	s16 x, y, z;
+
+	mutex_lock(&applesmc_lock);
+
+	ret = applesmc_read_motion_sensor(SENSOR_X, &x);
+	if (ret)
+		goto out;
+	ret = applesmc_read_motion_sensor(SENSOR_Y, &y);
+	if (ret)
+		goto out;
+	ret = applesmc_read_motion_sensor(SENSOR_Z, &z);
+	if (ret)
+		goto out;
+
+out:
+	mutex_unlock(&applesmc_lock);
+	if (ret)
+		return ret;
+	else
+		return snprintf(buf, PAGE_SIZE, "(%d,%d,%d)\n", x, y, z);
+}
+
+static ssize_t applesmc_light_show(struct device *dev,
+				struct device_attribute *attr, char *sysfsbuf)
+{
+	static int data_length;
+	int ret;
+	u8 left = 0, right = 0;
+	u8 buffer[10], query[6];
+
+	mutex_lock(&applesmc_lock);
+
+	if (!data_length) {
+		ret = applesmc_get_key_type(LIGHT_SENSOR_LEFT_KEY, query);
+		if (ret)
+			goto out;
+		data_length = clamp_val(query[0], 0, 10);
+		printk(KERN_INFO "applesmc: light sensor data length set to "
+			"%d\n", data_length);
+	}
+
+	ret = applesmc_read_key(LIGHT_SENSOR_LEFT_KEY, buffer, data_length);
+	left = buffer[2];
+	if (ret)
+		goto out;
+	ret = applesmc_read_key(LIGHT_SENSOR_RIGHT_KEY, buffer, data_length);
+	right = buffer[2];
+
+out:
+	mutex_unlock(&applesmc_lock);
+	if (ret)
+		return ret;
+	else
+		return snprintf(sysfsbuf, PAGE_SIZE, "(%d,%d)\n", left, right);
+}
+
+/* Displays degree Celsius * 1000 */
+static ssize_t applesmc_show_temperature(struct device *dev,
+			struct device_attribute *devattr, char *sysfsbuf)
+{
+	int ret;
+	u8 buffer[2];
+	unsigned int temp;
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	const char* key =
+		temperature_sensors_sets[applesmc_temperature_set][attr->index];
+
+	mutex_lock(&applesmc_lock);
+
+	ret = applesmc_read_key(key, buffer, 2);
+	temp = buffer[0]*1000;
+	temp += (buffer[1] >> 6) * 250;
+
+	mutex_unlock(&applesmc_lock);
+
+	if (ret)
+		return ret;
+	else
+		return snprintf(sysfsbuf, PAGE_SIZE, "%u\n", temp);
+}
+
+static ssize_t applesmc_show_fan_speed(struct device *dev,
+				struct device_attribute *attr, char *sysfsbuf)
+{
+	int ret;
+	unsigned int speed = 0;
+	char newkey[5];
+	u8 buffer[2];
+	struct sensor_device_attribute_2 *sensor_attr =
+						to_sensor_dev_attr_2(attr);
+
+	newkey[0] = fan_speed_keys[sensor_attr->nr][0];
+	newkey[1] = '0' + sensor_attr->index;
+	newkey[2] = fan_speed_keys[sensor_attr->nr][2];
+	newkey[3] = fan_speed_keys[sensor_attr->nr][3];
+	newkey[4] = 0;
+
+	mutex_lock(&applesmc_lock);
+
+	ret = applesmc_read_key(newkey, buffer, 2);
+	speed = ((buffer[0] << 8 | buffer[1]) >> 2);
+
+	mutex_unlock(&applesmc_lock);
+	if (ret)
+		return ret;
+	else
+		return snprintf(sysfsbuf, PAGE_SIZE, "%u\n", speed);
+}
+
+static ssize_t applesmc_store_fan_speed(struct device *dev,
+					struct device_attribute *attr,
+					const char *sysfsbuf, size_t count)
+{
+	int ret;
+	u32 speed;
+	char newkey[5];
+	u8 buffer[2];
+	struct sensor_device_attribute_2 *sensor_attr =
+						to_sensor_dev_attr_2(attr);
+
+	speed = simple_strtoul(sysfsbuf, NULL, 10);
+
+	if (speed > 0x4000) /* Bigger than a 14-bit value */
+		return -EINVAL;
+
+	newkey[0] = fan_speed_keys[sensor_attr->nr][0];
+	newkey[1] = '0' + sensor_attr->index;
+	newkey[2] = fan_speed_keys[sensor_attr->nr][2];
+	newkey[3] = fan_speed_keys[sensor_attr->nr][3];
+	newkey[4] = 0;
+
+	mutex_lock(&applesmc_lock);
+
+	buffer[0] = (speed >> 6) & 0xff;
+	buffer[1] = (speed << 2) & 0xff;
+	ret = applesmc_write_key(newkey, buffer, 2);
+
+	mutex_unlock(&applesmc_lock);
+	if (ret)
+		return ret;
+	else
+		return count;
+}
+
+static ssize_t applesmc_show_fan_manual(struct device *dev,
+			struct device_attribute *devattr, char *sysfsbuf)
+{
+	int ret;
+	u16 manual = 0;
+	u8 buffer[2];
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+
+	mutex_lock(&applesmc_lock);
+
+	ret = applesmc_read_key(FANS_MANUAL, buffer, 2);
+	manual = ((buffer[0] << 8 | buffer[1]) >> attr->index) & 0x01;
+
+	mutex_unlock(&applesmc_lock);
+	if (ret)
+		return ret;
+	else
+		return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", manual);
+}
+
+static ssize_t applesmc_store_fan_manual(struct device *dev,
+					 struct device_attribute *devattr,
+					 const char *sysfsbuf, size_t count)
+{
+	int ret;
+	u8 buffer[2];
+	u32 input;
+	u16 val;
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+
+	input = simple_strtoul(sysfsbuf, NULL, 10);
+
+	mutex_lock(&applesmc_lock);
+
+	ret = applesmc_read_key(FANS_MANUAL, buffer, 2);
+	val = (buffer[0] << 8 | buffer[1]);
+	if (ret)
+		goto out;
+
+	if (input)
+		val = val | (0x01 << attr->index);
+	else
+		val = val & ~(0x01 << attr->index);
+
+	buffer[0] = (val >> 8) & 0xFF;
+	buffer[1] = val & 0xFF;
+
+	ret = applesmc_write_key(FANS_MANUAL, buffer, 2);
+
+out:
+	mutex_unlock(&applesmc_lock);
+	if (ret)
+		return ret;
+	else
+		return count;
+}
+
+static ssize_t applesmc_show_fan_position(struct device *dev,
+				struct device_attribute *attr, char *sysfsbuf)
+{
+	int ret;
+	char newkey[5];
+	u8 buffer[17];
+	struct sensor_device_attribute_2 *sensor_attr =
+						to_sensor_dev_attr_2(attr);
+
+	newkey[0] = FAN_POSITION[0];
+	newkey[1] = '0' + sensor_attr->index;
+	newkey[2] = FAN_POSITION[2];
+	newkey[3] = FAN_POSITION[3];
+	newkey[4] = 0;
+
+	mutex_lock(&applesmc_lock);
+
+	ret = applesmc_read_key(newkey, buffer, 16);
+	buffer[16] = 0;
+
+	mutex_unlock(&applesmc_lock);
+	if (ret)
+		return ret;
+	else
+		return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", buffer+4);
+}
+
+static ssize_t applesmc_calibrate_show(struct device *dev,
+				struct device_attribute *attr, char *sysfsbuf)
+{
+	return snprintf(sysfsbuf, PAGE_SIZE, "(%d,%d)\n", rest_x, rest_y);
+}
+
+static ssize_t applesmc_calibrate_store(struct device *dev,
+	struct device_attribute *attr, const char *sysfsbuf, size_t count)
+{
+	mutex_lock(&applesmc_lock);
+	applesmc_calibrate();
+	mutex_unlock(&applesmc_lock);
+
+	return count;
+}
+
+/* Store the next backlight value to be written by the work */
+static unsigned int backlight_value;
+
+static void applesmc_backlight_set(struct work_struct *work)
+{
+	u8 buffer[2];
+
+	mutex_lock(&applesmc_lock);
+	buffer[0] = backlight_value;
+	buffer[1] = 0x00;
+	applesmc_write_key(BACKLIGHT_KEY, buffer, 2);
+	mutex_unlock(&applesmc_lock);
+}
+static DECLARE_WORK(backlight_work, &applesmc_backlight_set);
+
+static void applesmc_brightness_set(struct led_classdev *led_cdev,
+						enum led_brightness value)
+{
+	int ret;
+
+	backlight_value = value;
+	ret = queue_work(applesmc_led_wq, &backlight_work);
+
+	if (debug && (!ret))
+		printk(KERN_DEBUG "applesmc: work was already on the queue.\n");
+}
+
+static ssize_t applesmc_key_count_show(struct device *dev,
+				struct device_attribute *attr, char *sysfsbuf)
+{
+	int ret;
+	u8 buffer[4];
+	u32 count;
+
+	mutex_lock(&applesmc_lock);
+
+	ret = applesmc_read_key(KEY_COUNT_KEY, buffer, 4);
+	count = ((u32)buffer[0]<<24) + ((u32)buffer[1]<<16) +
+						((u32)buffer[2]<<8) + buffer[3];
+
+	mutex_unlock(&applesmc_lock);
+	if (ret)
+		return ret;
+	else
+		return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", count);
+}
+
+static ssize_t applesmc_key_at_index_read_show(struct device *dev,
+				struct device_attribute *attr, char *sysfsbuf)
+{
+	char key[5];
+	char info[6];
+	int ret;
+
+	mutex_lock(&applesmc_lock);
+
+	ret = applesmc_get_key_at_index(key_at_index, key);
+
+	if (ret || !key[0]) {
+		mutex_unlock(&applesmc_lock);
+
+		return -EINVAL;
+	}
+
+	ret = applesmc_get_key_type(key, info);
+
+	if (ret) {
+		mutex_unlock(&applesmc_lock);
+
+		return ret;
+	}
+
+	/*
+	 * info[0] maximum value (APPLESMC_MAX_DATA_LENGTH) is much lower than
+	 * PAGE_SIZE, so we don't need any checks before writing to sysfsbuf.
+	 */
+	ret = applesmc_read_key(key, sysfsbuf, info[0]);
+
+	mutex_unlock(&applesmc_lock);
+
+	if (!ret) {
+		return info[0];
+	} else {
+		return ret;
+	}
+}
+
+static ssize_t applesmc_key_at_index_data_length_show(struct device *dev,
+				struct device_attribute *attr, char *sysfsbuf)
+{
+	char key[5];
+	char info[6];
+	int ret;
+
+	mutex_lock(&applesmc_lock);
+
+	ret = applesmc_get_key_at_index(key_at_index, key);
+
+	if (ret || !key[0]) {
+		mutex_unlock(&applesmc_lock);
+
+		return -EINVAL;
+	}
+
+	ret = applesmc_get_key_type(key, info);
+
+	mutex_unlock(&applesmc_lock);
+
+	if (!ret)
+		return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", info[0]);
+	else
+		return ret;
+}
+
+static ssize_t applesmc_key_at_index_type_show(struct device *dev,
+				struct device_attribute *attr, char *sysfsbuf)
+{
+	char key[5];
+	char info[6];
+	int ret;
+
+	mutex_lock(&applesmc_lock);
+
+	ret = applesmc_get_key_at_index(key_at_index, key);
+
+	if (ret || !key[0]) {
+		mutex_unlock(&applesmc_lock);
+
+		return -EINVAL;
+	}
+
+	ret = applesmc_get_key_type(key, info);
+
+	mutex_unlock(&applesmc_lock);
+
+	if (!ret)
+		return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", info+1);
+	else
+		return ret;
+}
+
+static ssize_t applesmc_key_at_index_name_show(struct device *dev,
+				struct device_attribute *attr, char *sysfsbuf)
+{
+	char key[5];
+	int ret;
+
+	mutex_lock(&applesmc_lock);
+
+	ret = applesmc_get_key_at_index(key_at_index, key);
+
+	mutex_unlock(&applesmc_lock);
+
+	if (!ret && key[0])
+		return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", key);
+	else
+		return -EINVAL;
+}
+
+static ssize_t applesmc_key_at_index_show(struct device *dev,
+				struct device_attribute *attr, char *sysfsbuf)
+{
+	return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", key_at_index);
+}
+
+static ssize_t applesmc_key_at_index_store(struct device *dev,
+	struct device_attribute *attr, const char *sysfsbuf, size_t count)
+{
+	mutex_lock(&applesmc_lock);
+
+	key_at_index = simple_strtoul(sysfsbuf, NULL, 10);
+
+	mutex_unlock(&applesmc_lock);
+
+	return count;
+}
+
+static struct led_classdev applesmc_backlight = {
+	.name			= "smc::kbd_backlight",
+	.default_trigger	= "nand-disk",
+	.brightness_set		= applesmc_brightness_set,
+};
+
+static DEVICE_ATTR(name, 0444, applesmc_name_show, NULL);
+
+static DEVICE_ATTR(position, 0444, applesmc_position_show, NULL);
+static DEVICE_ATTR(calibrate, 0644,
+			applesmc_calibrate_show, applesmc_calibrate_store);
+
+static struct attribute *accelerometer_attributes[] = {
+	&dev_attr_position.attr,
+	&dev_attr_calibrate.attr,
+	NULL
+};
+
+static const struct attribute_group accelerometer_attributes_group =
+	{ .attrs = accelerometer_attributes };
+
+static DEVICE_ATTR(light, 0444, applesmc_light_show, NULL);
+
+static DEVICE_ATTR(key_count, 0444, applesmc_key_count_show, NULL);
+static DEVICE_ATTR(key_at_index, 0644,
+		applesmc_key_at_index_show, applesmc_key_at_index_store);
+static DEVICE_ATTR(key_at_index_name, 0444,
+					applesmc_key_at_index_name_show, NULL);
+static DEVICE_ATTR(key_at_index_type, 0444,
+					applesmc_key_at_index_type_show, NULL);
+static DEVICE_ATTR(key_at_index_data_length, 0444,
+				applesmc_key_at_index_data_length_show, NULL);
+static DEVICE_ATTR(key_at_index_data, 0444,
+				applesmc_key_at_index_read_show, NULL);
+
+static struct attribute *key_enumeration_attributes[] = {
+	&dev_attr_key_count.attr,
+	&dev_attr_key_at_index.attr,
+	&dev_attr_key_at_index_name.attr,
+	&dev_attr_key_at_index_type.attr,
+	&dev_attr_key_at_index_data_length.attr,
+	&dev_attr_key_at_index_data.attr,
+	NULL
+};
+
+static const struct attribute_group key_enumeration_group =
+	{ .attrs = key_enumeration_attributes };
+
+/*
+ * Macro defining SENSOR_DEVICE_ATTR for a fan sysfs entries.
+ *  - show actual speed
+ *  - show/store minimum speed
+ *  - show maximum speed
+ *  - show safe speed
+ *  - show/store target speed
+ *  - show/store manual mode
+ */
+#define sysfs_fan_speeds_offset(offset) \
+static SENSOR_DEVICE_ATTR_2(fan##offset##_input, S_IRUGO, \
+			applesmc_show_fan_speed, NULL, 0, offset-1); \
+\
+static SENSOR_DEVICE_ATTR_2(fan##offset##_min, S_IRUGO | S_IWUSR, \
+	applesmc_show_fan_speed, applesmc_store_fan_speed, 1, offset-1); \
+\
+static SENSOR_DEVICE_ATTR_2(fan##offset##_max, S_IRUGO, \
+			applesmc_show_fan_speed, NULL, 2, offset-1); \
+\
+static SENSOR_DEVICE_ATTR_2(fan##offset##_safe, S_IRUGO, \
+			applesmc_show_fan_speed, NULL, 3, offset-1); \
+\
+static SENSOR_DEVICE_ATTR_2(fan##offset##_output, S_IRUGO | S_IWUSR, \
+	applesmc_show_fan_speed, applesmc_store_fan_speed, 4, offset-1); \
+\
+static SENSOR_DEVICE_ATTR(fan##offset##_manual, S_IRUGO | S_IWUSR, \
+	applesmc_show_fan_manual, applesmc_store_fan_manual, offset-1); \
+\
+static SENSOR_DEVICE_ATTR(fan##offset##_label, S_IRUGO, \
+	applesmc_show_fan_position, NULL, offset-1); \
+\
+static struct attribute *fan##offset##_attributes[] = { \
+	&sensor_dev_attr_fan##offset##_input.dev_attr.attr, \
+	&sensor_dev_attr_fan##offset##_min.dev_attr.attr, \
+	&sensor_dev_attr_fan##offset##_max.dev_attr.attr, \
+	&sensor_dev_attr_fan##offset##_safe.dev_attr.attr, \
+	&sensor_dev_attr_fan##offset##_output.dev_attr.attr, \
+	&sensor_dev_attr_fan##offset##_manual.dev_attr.attr, \
+	&sensor_dev_attr_fan##offset##_label.dev_attr.attr, \
+	NULL \
+};
+
+/*
+ * Create the needed functions for each fan using the macro defined above
+ * (4 fans are supported)
+ */
+sysfs_fan_speeds_offset(1);
+sysfs_fan_speeds_offset(2);
+sysfs_fan_speeds_offset(3);
+sysfs_fan_speeds_offset(4);
+
+static const struct attribute_group fan_attribute_groups[] = {
+	{ .attrs = fan1_attributes },
+	{ .attrs = fan2_attributes },
+	{ .attrs = fan3_attributes },
+	{ .attrs = fan4_attributes },
+};
+
+/*
+ * Temperature sensors sysfs entries.
+ */
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 5);
+static SENSOR_DEVICE_ATTR(temp7_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 6);
+static SENSOR_DEVICE_ATTR(temp8_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 7);
+static SENSOR_DEVICE_ATTR(temp9_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 8);
+static SENSOR_DEVICE_ATTR(temp10_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 9);
+static SENSOR_DEVICE_ATTR(temp11_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 10);
+static SENSOR_DEVICE_ATTR(temp12_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 11);
+static SENSOR_DEVICE_ATTR(temp13_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 12);
+static SENSOR_DEVICE_ATTR(temp14_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 13);
+static SENSOR_DEVICE_ATTR(temp15_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 14);
+static SENSOR_DEVICE_ATTR(temp16_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 15);
+static SENSOR_DEVICE_ATTR(temp17_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 16);
+static SENSOR_DEVICE_ATTR(temp18_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 17);
+static SENSOR_DEVICE_ATTR(temp19_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 18);
+static SENSOR_DEVICE_ATTR(temp20_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 19);
+static SENSOR_DEVICE_ATTR(temp21_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 20);
+static SENSOR_DEVICE_ATTR(temp22_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 21);
+static SENSOR_DEVICE_ATTR(temp23_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 22);
+static SENSOR_DEVICE_ATTR(temp24_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 23);
+static SENSOR_DEVICE_ATTR(temp25_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 24);
+static SENSOR_DEVICE_ATTR(temp26_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 25);
+static SENSOR_DEVICE_ATTR(temp27_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 26);
+static SENSOR_DEVICE_ATTR(temp28_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 27);
+static SENSOR_DEVICE_ATTR(temp29_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 28);
+static SENSOR_DEVICE_ATTR(temp30_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 29);
+static SENSOR_DEVICE_ATTR(temp31_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 30);
+static SENSOR_DEVICE_ATTR(temp32_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 31);
+static SENSOR_DEVICE_ATTR(temp33_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 32);
+static SENSOR_DEVICE_ATTR(temp34_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 33);
+static SENSOR_DEVICE_ATTR(temp35_input, S_IRUGO,
+					applesmc_show_temperature, NULL, 34);
+
+static struct attribute *temperature_attributes[] = {
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp3_input.dev_attr.attr,
+	&sensor_dev_attr_temp4_input.dev_attr.attr,
+	&sensor_dev_attr_temp5_input.dev_attr.attr,
+	&sensor_dev_attr_temp6_input.dev_attr.attr,
+	&sensor_dev_attr_temp7_input.dev_attr.attr,
+	&sensor_dev_attr_temp8_input.dev_attr.attr,
+	&sensor_dev_attr_temp9_input.dev_attr.attr,
+	&sensor_dev_attr_temp10_input.dev_attr.attr,
+	&sensor_dev_attr_temp11_input.dev_attr.attr,
+	&sensor_dev_attr_temp12_input.dev_attr.attr,
+	&sensor_dev_attr_temp13_input.dev_attr.attr,
+	&sensor_dev_attr_temp14_input.dev_attr.attr,
+	&sensor_dev_attr_temp15_input.dev_attr.attr,
+	&sensor_dev_attr_temp16_input.dev_attr.attr,
+	&sensor_dev_attr_temp17_input.dev_attr.attr,
+	&sensor_dev_attr_temp18_input.dev_attr.attr,
+	&sensor_dev_attr_temp19_input.dev_attr.attr,
+	&sensor_dev_attr_temp20_input.dev_attr.attr,
+	&sensor_dev_attr_temp21_input.dev_attr.attr,
+	&sensor_dev_attr_temp22_input.dev_attr.attr,
+	&sensor_dev_attr_temp23_input.dev_attr.attr,
+	&sensor_dev_attr_temp24_input.dev_attr.attr,
+	&sensor_dev_attr_temp25_input.dev_attr.attr,
+	&sensor_dev_attr_temp26_input.dev_attr.attr,
+	&sensor_dev_attr_temp27_input.dev_attr.attr,
+	&sensor_dev_attr_temp28_input.dev_attr.attr,
+	&sensor_dev_attr_temp29_input.dev_attr.attr,
+	&sensor_dev_attr_temp30_input.dev_attr.attr,
+	&sensor_dev_attr_temp31_input.dev_attr.attr,
+	&sensor_dev_attr_temp32_input.dev_attr.attr,
+	&sensor_dev_attr_temp33_input.dev_attr.attr,
+	&sensor_dev_attr_temp34_input.dev_attr.attr,
+	&sensor_dev_attr_temp35_input.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group temperature_attributes_group =
+	{ .attrs = temperature_attributes };
+
+/* Module stuff */
+
+/*
+ * applesmc_dmi_match - found a match.  return one, short-circuiting the hunt.
+ */
+static int applesmc_dmi_match(const struct dmi_system_id *id)
+{
+	int i = 0;
+	struct dmi_match_data* dmi_data = id->driver_data;
+	printk(KERN_INFO "applesmc: %s detected:\n", id->ident);
+	applesmc_accelerometer = dmi_data->accelerometer;
+	printk(KERN_INFO "applesmc:  - Model %s accelerometer\n",
+				applesmc_accelerometer ? "with" : "without");
+	applesmc_light = dmi_data->light;
+	printk(KERN_INFO "applesmc:  - Model %s light sensors and backlight\n",
+					applesmc_light ? "with" : "without");
+
+	applesmc_temperature_set =  dmi_data->temperature_set;
+	while (temperature_sensors_sets[applesmc_temperature_set][i] != NULL)
+		i++;
+	printk(KERN_INFO "applesmc:  - Model with %d temperature sensors\n", i);
+	return 1;
+}
+
+/* Create accelerometer ressources */
+static int applesmc_create_accelerometer(void)
+{
+	struct input_dev *idev;
+	int ret;
+
+	ret = sysfs_create_group(&pdev->dev.kobj,
+					&accelerometer_attributes_group);
+	if (ret)
+		goto out;
+
+	applesmc_idev = input_allocate_polled_device();
+	if (!applesmc_idev) {
+		ret = -ENOMEM;
+		goto out_sysfs;
+	}
+
+	applesmc_idev->poll = applesmc_idev_poll;
+	applesmc_idev->poll_interval = APPLESMC_POLL_INTERVAL;
+
+	/* initial calibrate for the input device */
+	applesmc_calibrate();
+
+	/* initialize the input device */
+	idev = applesmc_idev->input;
+	idev->name = "applesmc";
+	idev->id.bustype = BUS_HOST;
+	idev->dev.parent = &pdev->dev;
+	idev->evbit[0] = BIT_MASK(EV_ABS);
+	input_set_abs_params(idev, ABS_X,
+			-256, 256, APPLESMC_INPUT_FUZZ, APPLESMC_INPUT_FLAT);
+	input_set_abs_params(idev, ABS_Y,
+			-256, 256, APPLESMC_INPUT_FUZZ, APPLESMC_INPUT_FLAT);
+
+	ret = input_register_polled_device(applesmc_idev);
+	if (ret)
+		goto out_idev;
+
+	return 0;
+
+out_idev:
+	input_free_polled_device(applesmc_idev);
+
+out_sysfs:
+	sysfs_remove_group(&pdev->dev.kobj, &accelerometer_attributes_group);
+
+out:
+	printk(KERN_WARNING "applesmc: driver init failed (ret=%d)!\n", ret);
+	return ret;
+}
+
+/* Release all ressources used by the accelerometer */
+static void applesmc_release_accelerometer(void)
+{
+	input_unregister_polled_device(applesmc_idev);
+	input_free_polled_device(applesmc_idev);
+	sysfs_remove_group(&pdev->dev.kobj, &accelerometer_attributes_group);
+}
+
+static __initdata struct dmi_match_data applesmc_dmi_data[] = {
+/* MacBook Pro: accelerometer, backlight and temperature set 0 */
+	{ .accelerometer = 1, .light = 1, .temperature_set = 0 },
+/* MacBook2: accelerometer and temperature set 1 */
+	{ .accelerometer = 1, .light = 0, .temperature_set = 1 },
+/* MacBook: accelerometer and temperature set 2 */
+	{ .accelerometer = 1, .light = 0, .temperature_set = 2 },
+/* MacMini: temperature set 3 */
+	{ .accelerometer = 0, .light = 0, .temperature_set = 3 },
+/* MacPro: temperature set 4 */
+	{ .accelerometer = 0, .light = 0, .temperature_set = 4 },
+/* iMac: temperature set 5 */
+	{ .accelerometer = 0, .light = 0, .temperature_set = 5 },
+/* MacBook3, MacBook4: accelerometer and temperature set 6 */
+	{ .accelerometer = 1, .light = 0, .temperature_set = 6 },
+/* MacBook Air: accelerometer, backlight and temperature set 7 */
+	{ .accelerometer = 1, .light = 1, .temperature_set = 7 },
+/* MacBook Pro 4: accelerometer, backlight and temperature set 8 */
+	{ .accelerometer = 1, .light = 1, .temperature_set = 8 },
+/* MacBook Pro 3: accelerometer, backlight and temperature set 9 */
+	{ .accelerometer = 1, .light = 1, .temperature_set = 9 },
+/* iMac 5: light sensor only, temperature set 10 */
+	{ .accelerometer = 0, .light = 0, .temperature_set = 10 },
+/* MacBook 5: accelerometer, backlight and temperature set 11 */
+	{ .accelerometer = 1, .light = 1, .temperature_set = 11 },
+/* MacBook Pro 5: accelerometer, backlight and temperature set 12 */
+	{ .accelerometer = 1, .light = 1, .temperature_set = 12 },
+/* iMac 8: light sensor only, temperature set 13 */
+	{ .accelerometer = 0, .light = 0, .temperature_set = 13 },
+/* iMac 6: light sensor only, temperature set 14 */
+	{ .accelerometer = 0, .light = 0, .temperature_set = 14 },
+};
+
+/* Note that DMI_MATCH(...,"MacBook") will match "MacBookPro1,1".
+ * So we need to put "Apple MacBook Pro" before "Apple MacBook". */
+static __initdata struct dmi_system_id applesmc_whitelist[] = {
+	{ applesmc_dmi_match, "Apple MacBook Air", {
+	  DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+	  DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir") },
+		&applesmc_dmi_data[7]},
+	{ applesmc_dmi_match, "Apple MacBook Pro 5", {
+	  DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+	  DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro5") },
+		&applesmc_dmi_data[12]},
+	{ applesmc_dmi_match, "Apple MacBook Pro 4", {
+	  DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+	  DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro4") },
+		&applesmc_dmi_data[8]},
+	{ applesmc_dmi_match, "Apple MacBook Pro 3", {
+	  DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+	  DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3") },
+		&applesmc_dmi_data[9]},
+	{ applesmc_dmi_match, "Apple MacBook Pro", {
+	  DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
+	  DMI_MATCH(DMI_PRODUCT_NAME,"MacBookPro") },
+		&applesmc_dmi_data[0]},
+	{ applesmc_dmi_match, "Apple MacBook (v2)", {
+	  DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
+	  DMI_MATCH(DMI_PRODUCT_NAME,"MacBook2") },
+		&applesmc_dmi_data[1]},
+	{ applesmc_dmi_match, "Apple MacBook (v3)", {
+	  DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
+	  DMI_MATCH(DMI_PRODUCT_NAME,"MacBook3") },
+		&applesmc_dmi_data[6]},
+	{ applesmc_dmi_match, "Apple MacBook 4", {
+	  DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+	  DMI_MATCH(DMI_PRODUCT_NAME, "MacBook4") },
+		&applesmc_dmi_data[6]},
+	{ applesmc_dmi_match, "Apple MacBook 5", {
+	  DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+	  DMI_MATCH(DMI_PRODUCT_NAME, "MacBook5") },
+		&applesmc_dmi_data[11]},
+	{ applesmc_dmi_match, "Apple MacBook", {
+	  DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
+	  DMI_MATCH(DMI_PRODUCT_NAME,"MacBook") },
+		&applesmc_dmi_data[2]},
+	{ applesmc_dmi_match, "Apple Macmini", {
+	  DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
+	  DMI_MATCH(DMI_PRODUCT_NAME,"Macmini") },
+		&applesmc_dmi_data[3]},
+	{ applesmc_dmi_match, "Apple MacPro2", {
+	  DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
+	  DMI_MATCH(DMI_PRODUCT_NAME,"MacPro2") },
+		&applesmc_dmi_data[4]},
+	{ applesmc_dmi_match, "Apple MacPro", {
+	  DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+	  DMI_MATCH(DMI_PRODUCT_NAME, "MacPro") },
+		&applesmc_dmi_data[4]},
+	{ applesmc_dmi_match, "Apple iMac 8", {
+	  DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+	  DMI_MATCH(DMI_PRODUCT_NAME, "iMac8") },
+		&applesmc_dmi_data[13]},
+	{ applesmc_dmi_match, "Apple iMac 6", {
+	  DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+	  DMI_MATCH(DMI_PRODUCT_NAME, "iMac6") },
+		&applesmc_dmi_data[14]},
+	{ applesmc_dmi_match, "Apple iMac 5", {
+	  DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+	  DMI_MATCH(DMI_PRODUCT_NAME, "iMac5") },
+		&applesmc_dmi_data[10]},
+	{ applesmc_dmi_match, "Apple iMac", {
+	  DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
+	  DMI_MATCH(DMI_PRODUCT_NAME,"iMac") },
+		&applesmc_dmi_data[5]},
+	{ .ident = NULL }
+};
+
+static int __init applesmc_init(void)
+{
+	int ret;
+	int count;
+	int i;
+
+	if (!dmi_check_system(applesmc_whitelist)) {
+		printk(KERN_WARNING "applesmc: supported laptop not found!\n");
+		ret = -ENODEV;
+		goto out;
+	}
+
+	if (!request_region(APPLESMC_DATA_PORT, APPLESMC_NR_PORTS,
+								"applesmc")) {
+		ret = -ENXIO;
+		goto out;
+	}
+
+	ret = platform_driver_register(&applesmc_driver);
+	if (ret)
+		goto out_region;
+
+	pdev = platform_device_register_simple("applesmc", APPLESMC_DATA_PORT,
+					       NULL, 0);
+	if (IS_ERR(pdev)) {
+		ret = PTR_ERR(pdev);
+		goto out_driver;
+	}
+
+	ret = sysfs_create_file(&pdev->dev.kobj, &dev_attr_name.attr);
+	if (ret)
+		goto out_device;
+
+	/* Create key enumeration sysfs files */
+	ret = sysfs_create_group(&pdev->dev.kobj, &key_enumeration_group);
+	if (ret)
+		goto out_name;
+
+	/* create fan files */
+	count = applesmc_get_fan_count();
+	if (count < 0) {
+		printk(KERN_ERR "applesmc: Cannot get the number of fans.\n");
+	} else {
+		printk(KERN_INFO "applesmc: %d fans found.\n", count);
+
+		switch (count) {
+		default:
+			printk(KERN_WARNING "applesmc: More than 4 fans found,"
+					" but at most 4 fans are supported"
+						" by the driver.\n");
+		case 4:
+			ret = sysfs_create_group(&pdev->dev.kobj,
+						 &fan_attribute_groups[3]);
+			if (ret)
+				goto out_key_enumeration;
+		case 3:
+			ret = sysfs_create_group(&pdev->dev.kobj,
+						 &fan_attribute_groups[2]);
+			if (ret)
+				goto out_key_enumeration;
+		case 2:
+			ret = sysfs_create_group(&pdev->dev.kobj,
+						 &fan_attribute_groups[1]);
+			if (ret)
+				goto out_key_enumeration;
+		case 1:
+			ret = sysfs_create_group(&pdev->dev.kobj,
+						 &fan_attribute_groups[0]);
+			if (ret)
+				goto out_fan_1;
+		case 0:
+			;
+		}
+	}
+
+	for (i = 0;
+	     temperature_sensors_sets[applesmc_temperature_set][i] != NULL;
+	     i++) {
+		if (temperature_attributes[i] == NULL) {
+			printk(KERN_ERR "applesmc: More temperature sensors "
+				"in temperature_sensors_sets (at least %i)"
+				"than available sysfs files in "
+				"temperature_attributes (%i), please report "
+				"this bug.\n", i, i-1);
+			goto out_temperature;
+		}
+		ret = sysfs_create_file(&pdev->dev.kobj,
+						temperature_attributes[i]);
+		if (ret)
+			goto out_temperature;
+	}
+
+	if (applesmc_accelerometer) {
+		ret = applesmc_create_accelerometer();
+		if (ret)
+			goto out_temperature;
+	}
+
+	if (applesmc_light) {
+		/* Add light sensor file */
+		ret = sysfs_create_file(&pdev->dev.kobj, &dev_attr_light.attr);
+		if (ret)
+			goto out_accelerometer;
+
+		/* Create the workqueue */
+		applesmc_led_wq = create_singlethread_workqueue("applesmc-led");
+		if (!applesmc_led_wq) {
+			ret = -ENOMEM;
+			goto out_light_sysfs;
+		}
+
+		/* register as a led device */
+		ret = led_classdev_register(&pdev->dev, &applesmc_backlight);
+		if (ret < 0)
+			goto out_light_wq;
+	}
+
+	hwmon_dev = hwmon_device_register(&pdev->dev);
+	if (IS_ERR(hwmon_dev)) {
+		ret = PTR_ERR(hwmon_dev);
+		goto out_light_ledclass;
+	}
+
+	printk(KERN_INFO "applesmc: driver successfully loaded.\n");
+
+	return 0;
+
+out_light_ledclass:
+	if (applesmc_light)
+		led_classdev_unregister(&applesmc_backlight);
+out_light_wq:
+	if (applesmc_light)
+		destroy_workqueue(applesmc_led_wq);
+out_light_sysfs:
+	if (applesmc_light)
+		sysfs_remove_file(&pdev->dev.kobj, &dev_attr_light.attr);
+out_accelerometer:
+	if (applesmc_accelerometer)
+		applesmc_release_accelerometer();
+out_temperature:
+	sysfs_remove_group(&pdev->dev.kobj, &temperature_attributes_group);
+	sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[0]);
+out_fan_1:
+	sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[1]);
+out_key_enumeration:
+	sysfs_remove_group(&pdev->dev.kobj, &key_enumeration_group);
+out_name:
+	sysfs_remove_file(&pdev->dev.kobj, &dev_attr_name.attr);
+out_device:
+	platform_device_unregister(pdev);
+out_driver:
+	platform_driver_unregister(&applesmc_driver);
+out_region:
+	release_region(APPLESMC_DATA_PORT, APPLESMC_NR_PORTS);
+out:
+	printk(KERN_WARNING "applesmc: driver init failed (ret=%d)!\n", ret);
+	return ret;
+}
+
+static void __exit applesmc_exit(void)
+{
+	hwmon_device_unregister(hwmon_dev);
+	if (applesmc_light) {
+		led_classdev_unregister(&applesmc_backlight);
+		destroy_workqueue(applesmc_led_wq);
+		sysfs_remove_file(&pdev->dev.kobj, &dev_attr_light.attr);
+	}
+	if (applesmc_accelerometer)
+		applesmc_release_accelerometer();
+	sysfs_remove_group(&pdev->dev.kobj, &temperature_attributes_group);
+	sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[0]);
+	sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[1]);
+	sysfs_remove_group(&pdev->dev.kobj, &key_enumeration_group);
+	sysfs_remove_file(&pdev->dev.kobj, &dev_attr_name.attr);
+	platform_device_unregister(pdev);
+	platform_driver_unregister(&applesmc_driver);
+	release_region(APPLESMC_DATA_PORT, APPLESMC_NR_PORTS);
+
+	printk(KERN_INFO "applesmc: driver unloaded.\n");
+}
+
+module_init(applesmc_init);
+module_exit(applesmc_exit);
+
+MODULE_AUTHOR("Nicolas Boichat");
+MODULE_DESCRIPTION("Apple SMC");
+MODULE_LICENSE("GPL v2");
+MODULE_DEVICE_TABLE(dmi, applesmc_whitelist);
diff --git a/drivers/hwmon/asb100.c b/drivers/hwmon/asb100.c
new file mode 100644
index 0000000..8a45a2e
--- /dev/null
+++ b/drivers/hwmon/asb100.c
@@ -0,0 +1,1007 @@
+/*
+    asb100.c - Part of lm_sensors, Linux kernel modules for hardware
+	        monitoring
+
+    Copyright (C) 2004 Mark M. Hoffman <mhoffman@lightlink.com>
+
+	(derived from w83781d.c)
+
+    Copyright (C) 1998 - 2003  Frodo Looijaard <frodol@dds.nl>,
+    Philip Edelbrock <phil@netroedge.com>, and
+    Mark Studebaker <mdsxyz123@yahoo.com>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+    This driver supports the hardware sensor chips: Asus ASB100 and
+    ASB100-A "BACH".
+
+    ASB100-A supports pwm1, while plain ASB100 does not.  There is no known
+    way for the driver to tell which one is there.
+
+    Chip	#vin	#fanin	#pwm	#temp	wchipid	vendid	i2c	ISA
+    asb100	7	3	1	4	0x31	0x0694	yes	no
+*/
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon-vid.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/jiffies.h>
+#include <linux/mutex.h>
+#include "lm75.h"
+
+/* I2C addresses to scan */
+static const unsigned short normal_i2c[] = { 0x2d, I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_1(asb100);
+I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: "
+	"{bus, clientaddr, subclientaddr1, subclientaddr2}");
+
+/* Voltage IN registers 0-6 */
+#define ASB100_REG_IN(nr)	(0x20 + (nr))
+#define ASB100_REG_IN_MAX(nr)	(0x2b + (nr * 2))
+#define ASB100_REG_IN_MIN(nr)	(0x2c + (nr * 2))
+
+/* FAN IN registers 1-3 */
+#define ASB100_REG_FAN(nr)	(0x28 + (nr))
+#define ASB100_REG_FAN_MIN(nr)	(0x3b + (nr))
+
+/* TEMPERATURE registers 1-4 */
+static const u16 asb100_reg_temp[]	= {0, 0x27, 0x150, 0x250, 0x17};
+static const u16 asb100_reg_temp_max[]	= {0, 0x39, 0x155, 0x255, 0x18};
+static const u16 asb100_reg_temp_hyst[]	= {0, 0x3a, 0x153, 0x253, 0x19};
+
+#define ASB100_REG_TEMP(nr) (asb100_reg_temp[nr])
+#define ASB100_REG_TEMP_MAX(nr) (asb100_reg_temp_max[nr])
+#define ASB100_REG_TEMP_HYST(nr) (asb100_reg_temp_hyst[nr])
+
+#define ASB100_REG_TEMP2_CONFIG	0x0152
+#define ASB100_REG_TEMP3_CONFIG	0x0252
+
+
+#define ASB100_REG_CONFIG	0x40
+#define ASB100_REG_ALARM1	0x41
+#define ASB100_REG_ALARM2	0x42
+#define ASB100_REG_SMIM1	0x43
+#define ASB100_REG_SMIM2	0x44
+#define ASB100_REG_VID_FANDIV	0x47
+#define ASB100_REG_I2C_ADDR	0x48
+#define ASB100_REG_CHIPID	0x49
+#define ASB100_REG_I2C_SUBADDR	0x4a
+#define ASB100_REG_PIN		0x4b
+#define ASB100_REG_IRQ		0x4c
+#define ASB100_REG_BANK		0x4e
+#define ASB100_REG_CHIPMAN	0x4f
+
+#define ASB100_REG_WCHIPID	0x58
+
+/* bit 7 -> enable, bits 0-3 -> duty cycle */
+#define ASB100_REG_PWM1		0x59
+
+/* CONVERSIONS
+   Rounding and limit checking is only done on the TO_REG variants. */
+
+/* These constants are a guess, consistent w/ w83781d */
+#define ASB100_IN_MIN (   0)
+#define ASB100_IN_MAX (4080)
+
+/* IN: 1/1000 V (0V to 4.08V)
+   REG: 16mV/bit */
+static u8 IN_TO_REG(unsigned val)
+{
+	unsigned nval = SENSORS_LIMIT(val, ASB100_IN_MIN, ASB100_IN_MAX);
+	return (nval + 8) / 16;
+}
+
+static unsigned IN_FROM_REG(u8 reg)
+{
+	return reg * 16;
+}
+
+static u8 FAN_TO_REG(long rpm, int div)
+{
+	if (rpm == -1)
+		return 0;
+	if (rpm == 0)
+		return 255;
+	rpm = SENSORS_LIMIT(rpm, 1, 1000000);
+	return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
+}
+
+static int FAN_FROM_REG(u8 val, int div)
+{
+	return val==0 ? -1 : val==255 ? 0 : 1350000/(val*div);
+}
+
+/* These constants are a guess, consistent w/ w83781d */
+#define ASB100_TEMP_MIN (-128000)
+#define ASB100_TEMP_MAX ( 127000)
+
+/* TEMP: 0.001C/bit (-128C to +127C)
+   REG: 1C/bit, two's complement */
+static u8 TEMP_TO_REG(long temp)
+{
+	int ntemp = SENSORS_LIMIT(temp, ASB100_TEMP_MIN, ASB100_TEMP_MAX);
+	ntemp += (ntemp<0 ? -500 : 500);
+	return (u8)(ntemp / 1000);
+}
+
+static int TEMP_FROM_REG(u8 reg)
+{
+	return (s8)reg * 1000;
+}
+
+/* PWM: 0 - 255 per sensors documentation
+   REG: (6.25% duty cycle per bit) */
+static u8 ASB100_PWM_TO_REG(int pwm)
+{
+	pwm = SENSORS_LIMIT(pwm, 0, 255);
+	return (u8)(pwm / 16);
+}
+
+static int ASB100_PWM_FROM_REG(u8 reg)
+{
+	return reg * 16;
+}
+
+#define DIV_FROM_REG(val) (1 << (val))
+
+/* FAN DIV: 1, 2, 4, or 8 (defaults to 2)
+   REG: 0, 1, 2, or 3 (respectively) (defaults to 1) */
+static u8 DIV_TO_REG(long val)
+{
+	return val==8 ? 3 : val==4 ? 2 : val==1 ? 0 : 1;
+}
+
+/* For each registered client, we need to keep some data in memory. That
+   data is pointed to by client->data. The structure itself is
+   dynamically allocated, at the same time the client itself is allocated. */
+struct asb100_data {
+	struct device *hwmon_dev;
+	struct mutex lock;
+
+	struct mutex update_lock;
+	unsigned long last_updated;	/* In jiffies */
+
+	/* array of 2 pointers to subclients */
+	struct i2c_client *lm75[2];
+
+	char valid;		/* !=0 if following fields are valid */
+	u8 in[7];		/* Register value */
+	u8 in_max[7];		/* Register value */
+	u8 in_min[7];		/* Register value */
+	u8 fan[3];		/* Register value */
+	u8 fan_min[3];		/* Register value */
+	u16 temp[4];		/* Register value (0 and 3 are u8 only) */
+	u16 temp_max[4];	/* Register value (0 and 3 are u8 only) */
+	u16 temp_hyst[4];	/* Register value (0 and 3 are u8 only) */
+	u8 fan_div[3];		/* Register encoding, right justified */
+	u8 pwm;			/* Register encoding */
+	u8 vid;			/* Register encoding, combined */
+	u32 alarms;		/* Register encoding, combined */
+	u8 vrm;
+};
+
+static int asb100_read_value(struct i2c_client *client, u16 reg);
+static void asb100_write_value(struct i2c_client *client, u16 reg, u16 val);
+
+static int asb100_probe(struct i2c_client *client,
+			const struct i2c_device_id *id);
+static int asb100_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info);
+static int asb100_remove(struct i2c_client *client);
+static struct asb100_data *asb100_update_device(struct device *dev);
+static void asb100_init_client(struct i2c_client *client);
+
+static const struct i2c_device_id asb100_id[] = {
+	{ "asb100", asb100 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, asb100_id);
+
+static struct i2c_driver asb100_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "asb100",
+	},
+	.probe		= asb100_probe,
+	.remove		= asb100_remove,
+	.id_table	= asb100_id,
+	.detect		= asb100_detect,
+	.address_data	= &addr_data,
+};
+
+/* 7 Voltages */
+#define show_in_reg(reg) \
+static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
+		char *buf) \
+{ \
+	int nr = to_sensor_dev_attr(attr)->index; \
+	struct asb100_data *data = asb100_update_device(dev); \
+	return sprintf(buf, "%d\n", IN_FROM_REG(data->reg[nr])); \
+}
+
+show_in_reg(in)
+show_in_reg(in_min)
+show_in_reg(in_max)
+
+#define set_in_reg(REG, reg) \
+static ssize_t set_in_##reg(struct device *dev, struct device_attribute *attr, \
+		const char *buf, size_t count) \
+{ \
+	int nr = to_sensor_dev_attr(attr)->index; \
+	struct i2c_client *client = to_i2c_client(dev); \
+	struct asb100_data *data = i2c_get_clientdata(client); \
+	unsigned long val = simple_strtoul(buf, NULL, 10); \
+ \
+	mutex_lock(&data->update_lock); \
+	data->in_##reg[nr] = IN_TO_REG(val); \
+	asb100_write_value(client, ASB100_REG_IN_##REG(nr), \
+		data->in_##reg[nr]); \
+	mutex_unlock(&data->update_lock); \
+	return count; \
+}
+
+set_in_reg(MIN, min)
+set_in_reg(MAX, max)
+
+#define sysfs_in(offset) \
+static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
+		show_in, NULL, offset); \
+static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
+		show_in_min, set_in_min, offset); \
+static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
+		show_in_max, set_in_max, offset)
+
+sysfs_in(0);
+sysfs_in(1);
+sysfs_in(2);
+sysfs_in(3);
+sysfs_in(4);
+sysfs_in(5);
+sysfs_in(6);
+
+/* 3 Fans */
+static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct asb100_data *data = asb100_update_device(dev);
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],
+		DIV_FROM_REG(data->fan_div[nr])));
+}
+
+static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct asb100_data *data = asb100_update_device(dev);
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr],
+		DIV_FROM_REG(data->fan_div[nr])));
+}
+
+static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct asb100_data *data = asb100_update_device(dev);
+	return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));
+}
+
+static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct asb100_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
+	asb100_write_value(client, ASB100_REG_FAN_MIN(nr), data->fan_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+/* Note: we save and restore the fan minimum here, because its value is
+   determined in part by the fan divisor.  This follows the principle of
+   least surprise; the user doesn't expect the fan minimum to change just
+   because the divisor changed. */
+static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct asb100_data *data = i2c_get_clientdata(client);
+	unsigned long min;
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+	int reg;
+
+	mutex_lock(&data->update_lock);
+
+	min = FAN_FROM_REG(data->fan_min[nr],
+			DIV_FROM_REG(data->fan_div[nr]));
+	data->fan_div[nr] = DIV_TO_REG(val);
+
+	switch (nr) {
+	case 0:	/* fan 1 */
+		reg = asb100_read_value(client, ASB100_REG_VID_FANDIV);
+		reg = (reg & 0xcf) | (data->fan_div[0] << 4);
+		asb100_write_value(client, ASB100_REG_VID_FANDIV, reg);
+		break;
+
+	case 1:	/* fan 2 */
+		reg = asb100_read_value(client, ASB100_REG_VID_FANDIV);
+		reg = (reg & 0x3f) | (data->fan_div[1] << 6);
+		asb100_write_value(client, ASB100_REG_VID_FANDIV, reg);
+		break;
+
+	case 2:	/* fan 3 */
+		reg = asb100_read_value(client, ASB100_REG_PIN);
+		reg = (reg & 0x3f) | (data->fan_div[2] << 6);
+		asb100_write_value(client, ASB100_REG_PIN, reg);
+		break;
+	}
+
+	data->fan_min[nr] =
+		FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
+	asb100_write_value(client, ASB100_REG_FAN_MIN(nr), data->fan_min[nr]);
+
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+#define sysfs_fan(offset) \
+static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
+		show_fan, NULL, offset - 1); \
+static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
+		show_fan_min, set_fan_min, offset - 1); \
+static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
+		show_fan_div, set_fan_div, offset - 1)
+
+sysfs_fan(1);
+sysfs_fan(2);
+sysfs_fan(3);
+
+/* 4 Temp. Sensors */
+static int sprintf_temp_from_reg(u16 reg, char *buf, int nr)
+{
+	int ret = 0;
+
+	switch (nr) {
+	case 1: case 2:
+		ret = sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(reg));
+		break;
+	case 0: case 3: default:
+		ret = sprintf(buf, "%d\n", TEMP_FROM_REG(reg));
+		break;
+	}
+	return ret;
+}
+
+#define show_temp_reg(reg) \
+static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
+		char *buf) \
+{ \
+	int nr = to_sensor_dev_attr(attr)->index; \
+	struct asb100_data *data = asb100_update_device(dev); \
+	return sprintf_temp_from_reg(data->reg[nr], buf, nr); \
+}
+
+show_temp_reg(temp);
+show_temp_reg(temp_max);
+show_temp_reg(temp_hyst);
+
+#define set_temp_reg(REG, reg) \
+static ssize_t set_##reg(struct device *dev, struct device_attribute *attr, \
+		const char *buf, size_t count) \
+{ \
+	int nr = to_sensor_dev_attr(attr)->index; \
+	struct i2c_client *client = to_i2c_client(dev); \
+	struct asb100_data *data = i2c_get_clientdata(client); \
+	long val = simple_strtol(buf, NULL, 10); \
+ \
+	mutex_lock(&data->update_lock); \
+	switch (nr) { \
+	case 1: case 2: \
+		data->reg[nr] = LM75_TEMP_TO_REG(val); \
+		break; \
+	case 0: case 3: default: \
+		data->reg[nr] = TEMP_TO_REG(val); \
+		break; \
+	} \
+	asb100_write_value(client, ASB100_REG_TEMP_##REG(nr+1), \
+			data->reg[nr]); \
+	mutex_unlock(&data->update_lock); \
+	return count; \
+}
+
+set_temp_reg(MAX, temp_max);
+set_temp_reg(HYST, temp_hyst);
+
+#define sysfs_temp(num) \
+static SENSOR_DEVICE_ATTR(temp##num##_input, S_IRUGO, \
+		show_temp, NULL, num - 1); \
+static SENSOR_DEVICE_ATTR(temp##num##_max, S_IRUGO | S_IWUSR, \
+		show_temp_max, set_temp_max, num - 1); \
+static SENSOR_DEVICE_ATTR(temp##num##_max_hyst, S_IRUGO | S_IWUSR, \
+		show_temp_hyst, set_temp_hyst, num - 1)
+
+sysfs_temp(1);
+sysfs_temp(2);
+sysfs_temp(3);
+sysfs_temp(4);
+
+/* VID */
+static ssize_t show_vid(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct asb100_data *data = asb100_update_device(dev);
+	return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
+}
+
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
+
+/* VRM */
+static ssize_t show_vrm(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct asb100_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%d\n", data->vrm);
+}
+
+static ssize_t set_vrm(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct asb100_data *data = dev_get_drvdata(dev);
+	data->vrm = simple_strtoul(buf, NULL, 10);
+	return count;
+}
+
+/* Alarms */
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
+
+static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct asb100_data *data = asb100_update_device(dev);
+	return sprintf(buf, "%u\n", data->alarms);
+}
+
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	struct asb100_data *data = asb100_update_device(dev);
+	return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
+}
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7);
+static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13);
+
+/* 1 PWM */
+static ssize_t show_pwm1(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct asb100_data *data = asb100_update_device(dev);
+	return sprintf(buf, "%d\n", ASB100_PWM_FROM_REG(data->pwm & 0x0f));
+}
+
+static ssize_t set_pwm1(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct asb100_data *data = i2c_get_clientdata(client);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->pwm &= 0x80; /* keep the enable bit */
+	data->pwm |= (0x0f & ASB100_PWM_TO_REG(val));
+	asb100_write_value(client, ASB100_REG_PWM1, data->pwm);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_pwm_enable1(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct asb100_data *data = asb100_update_device(dev);
+	return sprintf(buf, "%d\n", (data->pwm & 0x80) ? 1 : 0);
+}
+
+static ssize_t set_pwm_enable1(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct asb100_data *data = i2c_get_clientdata(client);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->pwm &= 0x0f; /* keep the duty cycle bits */
+	data->pwm |= (val ? 0x80 : 0x00);
+	asb100_write_value(client, ASB100_REG_PWM1, data->pwm);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm1, set_pwm1);
+static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
+		show_pwm_enable1, set_pwm_enable1);
+
+static struct attribute *asb100_attributes[] = {
+	&sensor_dev_attr_in0_input.dev_attr.attr,
+	&sensor_dev_attr_in0_min.dev_attr.attr,
+	&sensor_dev_attr_in0_max.dev_attr.attr,
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in1_min.dev_attr.attr,
+	&sensor_dev_attr_in1_max.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in2_min.dev_attr.attr,
+	&sensor_dev_attr_in2_max.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in3_min.dev_attr.attr,
+	&sensor_dev_attr_in3_max.dev_attr.attr,
+	&sensor_dev_attr_in4_input.dev_attr.attr,
+	&sensor_dev_attr_in4_min.dev_attr.attr,
+	&sensor_dev_attr_in4_max.dev_attr.attr,
+	&sensor_dev_attr_in5_input.dev_attr.attr,
+	&sensor_dev_attr_in5_min.dev_attr.attr,
+	&sensor_dev_attr_in5_max.dev_attr.attr,
+	&sensor_dev_attr_in6_input.dev_attr.attr,
+	&sensor_dev_attr_in6_min.dev_attr.attr,
+	&sensor_dev_attr_in6_max.dev_attr.attr,
+
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_div.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_div.dev_attr.attr,
+	&sensor_dev_attr_fan3_input.dev_attr.attr,
+	&sensor_dev_attr_fan3_min.dev_attr.attr,
+	&sensor_dev_attr_fan3_div.dev_attr.attr,
+
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp3_input.dev_attr.attr,
+	&sensor_dev_attr_temp3_max.dev_attr.attr,
+	&sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp4_input.dev_attr.attr,
+	&sensor_dev_attr_temp4_max.dev_attr.attr,
+	&sensor_dev_attr_temp4_max_hyst.dev_attr.attr,
+
+	&sensor_dev_attr_in0_alarm.dev_attr.attr,
+	&sensor_dev_attr_in1_alarm.dev_attr.attr,
+	&sensor_dev_attr_in2_alarm.dev_attr.attr,
+	&sensor_dev_attr_in3_alarm.dev_attr.attr,
+	&sensor_dev_attr_in4_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan3_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp3_alarm.dev_attr.attr,
+
+	&dev_attr_cpu0_vid.attr,
+	&dev_attr_vrm.attr,
+	&dev_attr_alarms.attr,
+	&dev_attr_pwm1.attr,
+	&dev_attr_pwm1_enable.attr,
+
+	NULL
+};
+
+static const struct attribute_group asb100_group = {
+	.attrs = asb100_attributes,
+};
+
+static int asb100_detect_subclients(struct i2c_client *client)
+{
+	int i, id, err;
+	int address = client->addr;
+	unsigned short sc_addr[2];
+	struct asb100_data *data = i2c_get_clientdata(client);
+	struct i2c_adapter *adapter = client->adapter;
+
+	id = i2c_adapter_id(adapter);
+
+	if (force_subclients[0] == id && force_subclients[1] == address) {
+		for (i = 2; i <= 3; i++) {
+			if (force_subclients[i] < 0x48 ||
+			    force_subclients[i] > 0x4f) {
+				dev_err(&client->dev, "invalid subclient "
+					"address %d; must be 0x48-0x4f\n",
+					force_subclients[i]);
+				err = -ENODEV;
+				goto ERROR_SC_2;
+			}
+		}
+		asb100_write_value(client, ASB100_REG_I2C_SUBADDR,
+					(force_subclients[2] & 0x07) |
+					((force_subclients[3] & 0x07) << 4));
+		sc_addr[0] = force_subclients[2];
+		sc_addr[1] = force_subclients[3];
+	} else {
+		int val = asb100_read_value(client, ASB100_REG_I2C_SUBADDR);
+		sc_addr[0] = 0x48 + (val & 0x07);
+		sc_addr[1] = 0x48 + ((val >> 4) & 0x07);
+	}
+
+	if (sc_addr[0] == sc_addr[1]) {
+		dev_err(&client->dev, "duplicate addresses 0x%x "
+				"for subclients\n", sc_addr[0]);
+		err = -ENODEV;
+		goto ERROR_SC_2;
+	}
+
+	data->lm75[0] = i2c_new_dummy(adapter, sc_addr[0]);
+	if (!data->lm75[0]) {
+		dev_err(&client->dev, "subclient %d registration "
+			"at address 0x%x failed.\n", 1, sc_addr[0]);
+		err = -ENOMEM;
+		goto ERROR_SC_2;
+	}
+
+	data->lm75[1] = i2c_new_dummy(adapter, sc_addr[1]);
+	if (!data->lm75[1]) {
+		dev_err(&client->dev, "subclient %d registration "
+			"at address 0x%x failed.\n", 2, sc_addr[1]);
+		err = -ENOMEM;
+		goto ERROR_SC_3;
+	}
+
+	return 0;
+
+/* Undo inits in case of errors */
+ERROR_SC_3:
+	i2c_unregister_device(data->lm75[0]);
+ERROR_SC_2:
+	return err;
+}
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int asb100_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
+		pr_debug("asb100.o: detect failed, "
+				"smbus byte data not supported!\n");
+		return -ENODEV;
+	}
+
+	/* The chip may be stuck in some other bank than bank 0. This may
+	   make reading other information impossible. Specify a force=... or
+	   force_*=... parameter, and the chip will be reset to the right
+	   bank. */
+	if (kind < 0) {
+
+		int val1 = i2c_smbus_read_byte_data(client, ASB100_REG_BANK);
+		int val2 = i2c_smbus_read_byte_data(client, ASB100_REG_CHIPMAN);
+
+		/* If we're in bank 0 */
+		if ((!(val1 & 0x07)) &&
+				/* Check for ASB100 ID (low byte) */
+				(((!(val1 & 0x80)) && (val2 != 0x94)) ||
+				/* Check for ASB100 ID (high byte ) */
+				((val1 & 0x80) && (val2 != 0x06)))) {
+			pr_debug("asb100.o: detect failed, "
+					"bad chip id 0x%02x!\n", val2);
+			return -ENODEV;
+		}
+
+	} /* kind < 0 */
+
+	/* We have either had a force parameter, or we have already detected
+	   Winbond. Put it now into bank 0 and Vendor ID High Byte */
+	i2c_smbus_write_byte_data(client, ASB100_REG_BANK,
+		(i2c_smbus_read_byte_data(client, ASB100_REG_BANK) & 0x78)
+		| 0x80);
+
+	/* Determine the chip type. */
+	if (kind <= 0) {
+		int val1 = i2c_smbus_read_byte_data(client, ASB100_REG_WCHIPID);
+		int val2 = i2c_smbus_read_byte_data(client, ASB100_REG_CHIPMAN);
+
+		if ((val1 == 0x31) && (val2 == 0x06))
+			kind = asb100;
+		else {
+			if (kind == 0)
+				dev_warn(&adapter->dev, "ignoring "
+					"'force' parameter for unknown chip "
+					"at adapter %d, address 0x%02x.\n",
+					i2c_adapter_id(adapter), client->addr);
+			return -ENODEV;
+		}
+	}
+
+	strlcpy(info->type, "asb100", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int asb100_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	int err;
+	struct asb100_data *data;
+
+	data = kzalloc(sizeof(struct asb100_data), GFP_KERNEL);
+	if (!data) {
+		pr_debug("asb100.o: probe failed, kzalloc failed!\n");
+		err = -ENOMEM;
+		goto ERROR0;
+	}
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->lock);
+	mutex_init(&data->update_lock);
+
+	/* Attach secondary lm75 clients */
+	err = asb100_detect_subclients(client);
+	if (err)
+		goto ERROR1;
+
+	/* Initialize the chip */
+	asb100_init_client(client);
+
+	/* A few vars need to be filled upon startup */
+	data->fan_min[0] = asb100_read_value(client, ASB100_REG_FAN_MIN(0));
+	data->fan_min[1] = asb100_read_value(client, ASB100_REG_FAN_MIN(1));
+	data->fan_min[2] = asb100_read_value(client, ASB100_REG_FAN_MIN(2));
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&client->dev.kobj, &asb100_group)))
+		goto ERROR3;
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto ERROR4;
+	}
+
+	return 0;
+
+ERROR4:
+	sysfs_remove_group(&client->dev.kobj, &asb100_group);
+ERROR3:
+	i2c_unregister_device(data->lm75[1]);
+	i2c_unregister_device(data->lm75[0]);
+ERROR1:
+	kfree(data);
+ERROR0:
+	return err;
+}
+
+static int asb100_remove(struct i2c_client *client)
+{
+	struct asb100_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &asb100_group);
+
+	i2c_unregister_device(data->lm75[1]);
+	i2c_unregister_device(data->lm75[0]);
+
+	kfree(data);
+
+	return 0;
+}
+
+/* The SMBus locks itself, usually, but nothing may access the chip between
+   bank switches. */
+static int asb100_read_value(struct i2c_client *client, u16 reg)
+{
+	struct asb100_data *data = i2c_get_clientdata(client);
+	struct i2c_client *cl;
+	int res, bank;
+
+	mutex_lock(&data->lock);
+
+	bank = (reg >> 8) & 0x0f;
+	if (bank > 2)
+		/* switch banks */
+		i2c_smbus_write_byte_data(client, ASB100_REG_BANK, bank);
+
+	if (bank == 0 || bank > 2) {
+		res = i2c_smbus_read_byte_data(client, reg & 0xff);
+	} else {
+		/* switch to subclient */
+		cl = data->lm75[bank - 1];
+
+		/* convert from ISA to LM75 I2C addresses */
+		switch (reg & 0xff) {
+		case 0x50: /* TEMP */
+			res = swab16(i2c_smbus_read_word_data(cl, 0));
+			break;
+		case 0x52: /* CONFIG */
+			res = i2c_smbus_read_byte_data(cl, 1);
+			break;
+		case 0x53: /* HYST */
+			res = swab16(i2c_smbus_read_word_data(cl, 2));
+			break;
+		case 0x55: /* MAX */
+		default:
+			res = swab16(i2c_smbus_read_word_data(cl, 3));
+			break;
+		}
+	}
+
+	if (bank > 2)
+		i2c_smbus_write_byte_data(client, ASB100_REG_BANK, 0);
+
+	mutex_unlock(&data->lock);
+
+	return res;
+}
+
+static void asb100_write_value(struct i2c_client *client, u16 reg, u16 value)
+{
+	struct asb100_data *data = i2c_get_clientdata(client);
+	struct i2c_client *cl;
+	int bank;
+
+	mutex_lock(&data->lock);
+
+	bank = (reg >> 8) & 0x0f;
+	if (bank > 2)
+		/* switch banks */
+		i2c_smbus_write_byte_data(client, ASB100_REG_BANK, bank);
+
+	if (bank == 0 || bank > 2) {
+		i2c_smbus_write_byte_data(client, reg & 0xff, value & 0xff);
+	} else {
+		/* switch to subclient */
+		cl = data->lm75[bank - 1];
+
+		/* convert from ISA to LM75 I2C addresses */
+		switch (reg & 0xff) {
+		case 0x52: /* CONFIG */
+			i2c_smbus_write_byte_data(cl, 1, value & 0xff);
+			break;
+		case 0x53: /* HYST */
+			i2c_smbus_write_word_data(cl, 2, swab16(value));
+			break;
+		case 0x55: /* MAX */
+			i2c_smbus_write_word_data(cl, 3, swab16(value));
+			break;
+		}
+	}
+
+	if (bank > 2)
+		i2c_smbus_write_byte_data(client, ASB100_REG_BANK, 0);
+
+	mutex_unlock(&data->lock);
+}
+
+static void asb100_init_client(struct i2c_client *client)
+{
+	struct asb100_data *data = i2c_get_clientdata(client);
+
+	data->vrm = vid_which_vrm();
+
+	/* Start monitoring */
+	asb100_write_value(client, ASB100_REG_CONFIG,
+		(asb100_read_value(client, ASB100_REG_CONFIG) & 0xf7) | 0x01);
+}
+
+static struct asb100_data *asb100_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct asb100_data *data = i2c_get_clientdata(client);
+	int i;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+		|| !data->valid) {
+
+		dev_dbg(&client->dev, "starting device update...\n");
+
+		/* 7 voltage inputs */
+		for (i = 0; i < 7; i++) {
+			data->in[i] = asb100_read_value(client,
+				ASB100_REG_IN(i));
+			data->in_min[i] = asb100_read_value(client,
+				ASB100_REG_IN_MIN(i));
+			data->in_max[i] = asb100_read_value(client,
+				ASB100_REG_IN_MAX(i));
+		}
+
+		/* 3 fan inputs */
+		for (i = 0; i < 3; i++) {
+			data->fan[i] = asb100_read_value(client,
+					ASB100_REG_FAN(i));
+			data->fan_min[i] = asb100_read_value(client,
+					ASB100_REG_FAN_MIN(i));
+		}
+
+		/* 4 temperature inputs */
+		for (i = 1; i <= 4; i++) {
+			data->temp[i-1] = asb100_read_value(client,
+					ASB100_REG_TEMP(i));
+			data->temp_max[i-1] = asb100_read_value(client,
+					ASB100_REG_TEMP_MAX(i));
+			data->temp_hyst[i-1] = asb100_read_value(client,
+					ASB100_REG_TEMP_HYST(i));
+		}
+
+		/* VID and fan divisors */
+		i = asb100_read_value(client, ASB100_REG_VID_FANDIV);
+		data->vid = i & 0x0f;
+		data->vid |= (asb100_read_value(client,
+				ASB100_REG_CHIPID) & 0x01) << 4;
+		data->fan_div[0] = (i >> 4) & 0x03;
+		data->fan_div[1] = (i >> 6) & 0x03;
+		data->fan_div[2] = (asb100_read_value(client,
+				ASB100_REG_PIN) >> 6) & 0x03;
+
+		/* PWM */
+		data->pwm = asb100_read_value(client, ASB100_REG_PWM1);
+
+		/* alarms */
+		data->alarms = asb100_read_value(client, ASB100_REG_ALARM1) +
+			(asb100_read_value(client, ASB100_REG_ALARM2) << 8);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+
+		dev_dbg(&client->dev, "... device update complete\n");
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init asb100_init(void)
+{
+	return i2c_add_driver(&asb100_driver);
+}
+
+static void __exit asb100_exit(void)
+{
+	i2c_del_driver(&asb100_driver);
+}
+
+MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>");
+MODULE_DESCRIPTION("ASB100 Bach driver");
+MODULE_LICENSE("GPL");
+
+module_init(asb100_init);
+module_exit(asb100_exit);
diff --git a/drivers/hwmon/ast_adc.c b/drivers/hwmon/ast_adc.c
new file mode 100644
index 0000000..e21d52e
--- /dev/null
+++ b/drivers/hwmon/ast_adc.c
@@ -0,0 +1,852 @@
+/*
+ *  ast_adc.c
+ *
+ *  ASPEED ADC controller driver
+ *
+ *  Copyright (C) 2012-2020  ASPEED Technology Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  History:
+ *    2012.11.26: Initial version [Ryan Chen]
+ */
+
+/* attr ADC sysfs 0~max adc channel
+*	 0 - show/store enable
+*	 3 - show value
+*	 1 - show/store alarm_en set enable
+*	 2 - show alarm   get statuse
+*	 4 - show/store upper
+*	 5 - show/store lower  */
+
+
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/timer.h>
+#include <linux/mutex.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon.h>
+#include <linux/workqueue.h>
+#include <linux/sysfs.h>
+#include <linux/err.h>
+
+#include <mach/hardware.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+
+#include <plat/regs-adc.h>
+#include <plat/ast-scu.h>
+
+
+#define REST_DESIGN		5
+
+
+#ifdef CONFIG_YOSEMITE
+enum {
+  ADC_P5V = 0,
+  ADC_P12V,
+  ADC_P3V3_STBY,
+  ADC_P12V_SLOT0,
+  ADC_P12V_SLOT1,
+  ADC_P12V_SLOT2,
+  ADC_P12V_SLOT3,
+  ADC_P3V3,
+};
+
+enum {
+  REST_DESIGN_P3V3 = 6,
+  REST_DESIGN_P5V = 7,
+  REST_DESIGN_P12V = 8,
+};
+#endif // CONFIG_YOSEMITE
+
+struct adc_vcc_ref_data {
+	int v2;
+	int r1;
+	int r2;
+};
+
+static struct adc_vcc_ref_data adc_vcc_ref[9] = {
+	[0] = {
+		.v2 = 0,
+		.r1 = 5600,
+		.r2 = 1000,
+	},
+	[1] = {
+		.v2 = -12,
+		.r1 = 1000,
+		.r2 = 10000,
+	},
+	[2] = {
+		.v2 = 0,
+		.r1 = 1800,
+		.r2 = 1000,
+	},
+	[3] = {
+		.v2 = -5,
+		.r1 = 2200,
+		.r2 = 10000,
+	},
+	[4] = {
+		.v2 = 0,
+		.r1 = 56000,
+		.r2 = 1000,
+	},
+	[5] = {
+		.v2 = 0,
+		.r1 = 1000,
+		.r2 = 1000,
+	},
+  // P3V3
+	[6] = {
+		.v2 = 0,
+		.r1 = 5110,
+		.r2 = 8250,
+	},
+  // P5V
+	[7] = {
+		.v2 = 0,
+		.r1 = 5110,
+		.r2 = 3480,
+	},
+  // P12V
+	[8] = {
+		.v2 = 0,
+		.r1 = 5110,
+		.r2 = 1020,
+	},
+};
+
+/* Divisors for voltage sense;  right now adc5 & adc6 divide by 2 */
+
+static int adc_divisor[] = { 1, 1, 1, 1,
+			     1, 2, 2, 1,
+			     1, 1, 1, 1,
+			     1, 1, 1, 1};
+
+struct ast_adc_data {
+	struct device			*hwmon_dev;
+	void __iomem			*reg_base;			/* virtual */
+	int 					irq;				//ADC IRQ number
+	int						compen_value;		//Compensating value
+};
+
+struct ast_adc_data *ast_adc;
+
+static u8 ast_get_adc_en(struct ast_adc_data *ast_adc, u8 adc_ch);
+
+
+static inline void
+ast_adc_write(struct ast_adc_data *ast_adc, u32 val, u32 reg)
+{
+//	printk("write offset: %x, val: %x \n",reg,val);
+	writel(val, ast_adc->reg_base+ reg);
+}
+
+static inline u32
+ast_adc_read(struct ast_adc_data *ast_adc, u32 reg)
+{
+	u32 val = readl(ast_adc->reg_base + reg);
+//	printk("read offset: %x, val: %x \n",reg,val);
+	return val;
+}
+
+static void ast_adc_ctrl_init(void)
+{
+	u32 pclk;
+	ast_adc_write(ast_adc, AST_ADC_CTRL_COMPEN | AST_ADC_CTRL_NORMAL | AST_ADC_CTRL_EN, AST_ADC_CTRL);
+
+	//Set wait a sensing cycle t (s) = 1000 * 12 * (1/PCLK) * 2 * (ADC0c[31:17] + 1) * (ADC0c[9:0] +1)
+	//ex : pclk = 48Mhz , ADC0c[31:17] = 0,  ADC0c[9:0] = 0x40 : 64,  ADC0c[31:17] = 0x3e7 : 999
+	// --> 0.0325s	= 12 * 2 * (0x3e7 + 1) *(64+1) / 48000000
+	// --> 0.0005s	= 12 * 2 * (0x3e7 + 1) / 48000000
+
+	pclk = ast_get_pclk();
+
+#if defined(CONFIG_ARCH_AST2300)
+	ast_adc_write(ast_adc, 0x3e7, AST_ADC_CLK);
+
+	ast_adc_write(ast_adc, AST_ADC_CTRL_CH12_EN | AST_ADC_CTRL_COMPEN_CLR| ast_adc_read(ast_adc, AST_ADC_CTRL), AST_ADC_CTRL);
+
+	mdelay(50);
+
+	//compensating value = 0x200 - ADC10[9:0]
+	if(ast_adc_read(ast_adc, AST_ADC_CH12_13) & (0x1 << 8))
+		ast_adc->compen_value = 0x200 - (ast_adc_read(ast_adc, AST_ADC_CH12_13) & AST_ADC_L_CH_MASK);
+	else
+		ast_adc->compen_value = 0 - (ast_adc_read(ast_adc, AST_ADC_CH12_13) & AST_ADC_L_CH_MASK);
+
+	// printk("compensating value %d \n",ast_adc->compen_value);
+
+#elif defined(CONFIG_ARCH_AST2400)
+
+	//For AST2400 A0 workaround  ... ADC0c = 1 ;
+//	ast_adc_write(ast_adc, 1, AST_ADC_CLK);
+//	ast_adc_write(ast_adc, (0x3e7<< 17) | 0x40, AST_ADC_CLK);
+	ast_adc_write(ast_adc, 0x40, AST_ADC_CLK);
+
+	ast_adc_write(ast_adc, AST_ADC_CTRL_CH0_EN | AST_ADC_CTRL_COMPEN | AST_ADC_CTRL_NORMAL | AST_ADC_CTRL_EN, AST_ADC_CTRL);
+
+	ast_adc_read(ast_adc, AST_ADC_CTRL);
+
+	mdelay(1);
+
+	//compensating value = 0x200 - ADC10[9:0]
+	ast_adc->compen_value = 0x200 - (ast_adc_read(ast_adc, AST_ADC_CH0_1) & AST_ADC_L_CH_MASK);
+	// printk("compensating value %d \n",ast_adc->compen_value);
+
+#elif defined(CONFIG_ARCH_AST2500)
+//	TODO ...
+//	scu read trim
+//	write trim 0xc4 [3:0]
+
+	ast_adc_write(ast_adc, 0x40, AST_ADC_CLK);
+
+	ast_adc_write(ast_adc, AST_ADC_CTRL_NORMAL | AST_ADC_CTRL_EN, AST_ADC_CTRL);
+
+    while(!ast_adc_read(ast_adc, AST_ADC_CTRL) & 0x100);
+
+	ast_adc_write(ast_adc, AST_ADC_CTRL_COMPEN  | AST_ADC_CTRL_NORMAL | AST_ADC_CTRL_EN, AST_ADC_CTRL);
+
+	while(ast_adc_read(ast_adc, AST_ADC_CTRL) & AST_ADC_CTRL_COMPEN);
+
+	//compensating value = 0x200 - ADC10[9:0]
+	ast_adc->compen_value = 0x200 - ((ast_adc_read(ast_adc, AST_ADC_TRIM) >> 16) & 0x3ff);
+	// printk("compensating value %d \n",ast_adc->compen_value);
+
+#else
+#err "No define for ADC "
+#endif
+
+	ast_adc_write(ast_adc, AST_ADC_CTRL_NORMAL | AST_ADC_CTRL_EN, AST_ADC_CTRL);
+
+}
+
+static u16
+ast_get_adc_hyster_lower(struct ast_adc_data *ast_adc, u8 adc_ch)
+{
+    u16 tmp=0;
+	tmp = ast_adc_read(ast_adc, AST_ADC_HYSTER0 + (adc_ch *4)) & AST_ADC_L_BOUND;
+
+//	printk("read val = %d \n",tmp);
+
+	return tmp;
+
+}
+
+static void
+ast_set_adc_hyster_lower(struct ast_adc_data *ast_adc, u8 adc_ch, u16 value)
+{
+	ast_adc_write(ast_adc,
+			(ast_adc_read(ast_adc, AST_ADC_HYSTER0 + (adc_ch *4)) & ~AST_ADC_L_BOUND) |
+			value,
+			AST_ADC_HYSTER0 + (adc_ch *4));
+
+}
+
+static u16
+ast_get_adc_hyster_upper(struct ast_adc_data *ast_adc, u8 adc_ch)
+{
+    u16 tmp=0;
+	tmp = ((ast_adc_read(ast_adc, AST_ADC_HYSTER0 + (adc_ch *4)) & AST_ADC_H_BOUND) >> 16);
+
+//	printk("read val = %d \n",tmp);
+
+	return tmp;
+}
+
+static void
+ast_set_adc_hyster_upper(struct ast_adc_data *ast_adc, u8 adc_ch, u32 value)
+{
+	ast_adc_write(ast_adc,
+			(ast_adc_read(ast_adc, AST_ADC_HYSTER0 + (adc_ch *4)) & ~AST_ADC_H_BOUND) |
+			(value << 16),
+			AST_ADC_HYSTER0 + (adc_ch *4));
+
+}
+
+static u8
+ast_get_adc_hyster_en(struct ast_adc_data *ast_adc, u8 adc_ch)
+{
+	//tacho source
+	if(ast_adc_read(ast_adc, AST_ADC_HYSTER0 + (adc_ch *4)) & AST_ADC_HYSTER_EN)
+		return 1;
+	else
+		return 0;
+}
+
+static void
+ast_set_adc_hyster_en(struct ast_adc_data *ast_adc, u8 adc_ch, u8 enable)
+{
+	//tacho source
+	if(enable == 1)
+		ast_adc_write(ast_adc,
+			ast_adc_read(ast_adc, AST_ADC_HYSTER0 + (adc_ch *4)) | AST_ADC_HYSTER_EN,
+			AST_ADC_HYSTER0 + (adc_ch *4));
+	else
+		ast_adc_write(ast_adc,
+			ast_adc_read(ast_adc, AST_ADC_HYSTER0 + (adc_ch *4)) & ~AST_ADC_HYSTER_EN,
+			AST_ADC_HYSTER0 + (adc_ch *4));
+}
+
+static u16
+ast_get_adc_lower(struct ast_adc_data *ast_adc, u8 adc_ch)
+{
+    u16 tmp=0;
+	tmp = ast_adc_read(ast_adc, AST_ADC_BOUND0 + (adc_ch *4)) & AST_ADC_L_BOUND;
+
+//	printk("read val = %d \n",tmp);
+
+	return tmp;
+
+}
+
+static void
+ast_set_adc_lower(struct ast_adc_data *ast_adc, u8 adc_ch, u16 value)
+{
+	ast_adc_write(ast_adc,
+			(ast_adc_read(ast_adc, AST_ADC_BOUND0 + (adc_ch *4)) & ~AST_ADC_L_BOUND) |
+			value,
+			AST_ADC_BOUND0 + (adc_ch *4));
+
+}
+
+static u16
+ast_get_adc_upper(struct ast_adc_data *ast_adc, u8 adc_ch)
+{
+    u16 tmp=0;
+	tmp = ((ast_adc_read(ast_adc, AST_ADC_BOUND0 + (adc_ch *4)) & AST_ADC_H_BOUND) >> 16);
+
+	printk("read val = %d \n",tmp);
+
+	return tmp;
+
+
+}
+
+static void
+ast_set_adc_upper(struct ast_adc_data *ast_adc, u8 adc_ch, u32 value)
+{
+	ast_adc_write(ast_adc,
+			(ast_adc_read(ast_adc, AST_ADC_BOUND0 + (adc_ch *4)) & ~AST_ADC_H_BOUND) |
+			(value << 16),
+			AST_ADC_BOUND0 + (adc_ch *4));
+
+}
+
+
+static u8
+ast_get_adc_alarm(struct ast_adc_data *ast_adc, u8 adc_ch)
+{
+	//adc ch source
+	if(ast_adc_read(ast_adc, AST_ADC_IER) & (0x1 << adc_ch))
+		return 1;
+	else
+		return 0;
+}
+
+static u16
+ast_get_adc_value(struct ast_adc_data *ast_adc, u8 adc_ch)
+{
+    int tmp;
+
+	switch(adc_ch) {
+		case 0:
+			tmp = ast_adc_read(ast_adc, AST_ADC_CH0_1) & AST_ADC_L_CH_MASK;
+			break;
+		case 1:
+			tmp = (ast_adc_read(ast_adc, AST_ADC_CH0_1) & AST_ADC_H_CH_MASK) >> 16;
+			break;
+		case 2:
+			tmp = ast_adc_read(ast_adc, AST_ADC_CH2_3) & AST_ADC_L_CH_MASK;
+			break;
+		case 3:
+			tmp = (ast_adc_read(ast_adc, AST_ADC_CH2_3) & AST_ADC_H_CH_MASK) >> 16;
+			break;
+		case 4:
+			tmp = ast_adc_read(ast_adc, AST_ADC_CH4_5) & AST_ADC_L_CH_MASK;
+			break;
+		case 5:
+			tmp = (ast_adc_read(ast_adc, AST_ADC_CH4_5) & AST_ADC_H_CH_MASK) >> 16;
+			break;
+		case 6:
+			tmp = ast_adc_read(ast_adc, AST_ADC_CH6_7) & AST_ADC_L_CH_MASK;
+			break;
+		case 7:
+			tmp = (ast_adc_read(ast_adc, AST_ADC_CH6_7) & AST_ADC_H_CH_MASK) >> 16;
+			break;
+		case 8:
+			tmp = ast_adc_read(ast_adc, AST_ADC_CH8_9) & AST_ADC_L_CH_MASK;
+			break;
+		case 9:
+			tmp = (ast_adc_read(ast_adc, AST_ADC_CH8_9) & AST_ADC_H_CH_MASK) >> 16;
+			break;
+		case 10:
+			tmp = ast_adc_read(ast_adc, AST_ADC_CH10_11) & AST_ADC_L_CH_MASK;
+			break;
+		case 11:
+			tmp = (ast_adc_read(ast_adc, AST_ADC_CH10_11) & AST_ADC_H_CH_MASK) >> 16;
+			break;
+		case 12:
+			tmp = ast_adc_read(ast_adc, AST_ADC_CH12_13) & AST_ADC_L_CH_MASK;
+			break;
+		case 13:
+			tmp = (ast_adc_read(ast_adc, AST_ADC_CH12_13) & AST_ADC_H_CH_MASK) >> 16;
+			break;
+		case 14:
+			tmp = ast_adc_read(ast_adc, AST_ADC_CH14_15) & AST_ADC_L_CH_MASK;
+			break;
+		case 15:
+			tmp = (ast_adc_read(ast_adc, AST_ADC_CH14_15) & AST_ADC_H_CH_MASK) >> 16;
+			break;
+
+	}
+
+	tmp += ast_adc->compen_value;
+
+//	printk("voltage = %d \n",tmp);
+
+	return tmp;
+
+}
+
+static u8
+ast_get_adc_en(struct ast_adc_data *ast_adc, u8 adc_ch)
+{
+    u8 tmp=0;
+
+	if(ast_adc_read(ast_adc, AST_ADC_CTRL) & (0x1 << (16+adc_ch)))
+		tmp = 1;
+	else
+		tmp = 0;
+
+	return tmp;
+
+}
+
+static void
+ast_set_adc_en(struct ast_adc_data *ast_adc, u8 adc_ch, u8 enable)
+{
+	if(enable)
+		ast_adc_write(ast_adc, ast_adc_read(ast_adc, AST_ADC_CTRL) | (0x1 << (16+adc_ch)), AST_ADC_CTRL);
+	else
+		ast_adc_write(ast_adc, ast_adc_read(ast_adc, AST_ADC_CTRL) & ~(0x1 << (16+adc_ch)), AST_ADC_CTRL);
+}
+
+
+/* NAME sysfs */
+static ssize_t
+show_name(struct device *dev, struct device_attribute *devattr,
+                         char *buf)
+{
+  return sprintf(buf, "ast_adc\n");
+}
+static SENSOR_DEVICE_ATTR_2(name, S_IRUGO, show_name, NULL, 0, 0);
+static struct attribute *name_attributes[] = {
+	&sensor_dev_attr_name.dev_attr.attr,
+	NULL
+};
+static const struct attribute_group name_attribute_groups = {
+	.attrs = name_attributes,
+};
+
+/* attr ADC sysfs 0~max adc channel
+*	 0 - show/store channel enable
+*	 1 - show value
+*	 2 - show alarm   get statuse
+*	 3 - show/store upper
+*	 4 - show/store lower
+*	 5 - show/store hystersis enable
+*	 6 - show/store hystersis upper
+*	 7 - show/store hystersis low
+*/
+
+static u32
+ast_get_voltage(int idx) {
+  u8 rest_design = REST_DESIGN;
+  u16 tmp;
+  u32 voltage, tmp1, tmp2, tmp3;
+  tmp = ast_get_adc_value(ast_adc, idx);
+
+#ifdef CONFIG_YOSEMITE
+  switch (idx) {
+  case ADC_P3V3:
+  case ADC_P3V3_STBY:
+    rest_design = REST_DESIGN_P3V3;
+    break;
+  case ADC_P5V:
+    rest_design = REST_DESIGN_P5V;
+    break;
+  case ADC_P12V:
+  case ADC_P12V_SLOT0:
+  case ADC_P12V_SLOT1:
+  case ADC_P12V_SLOT2:
+  case ADC_P12V_SLOT3:
+    rest_design = REST_DESIGN_P12V;
+    break;
+  default:
+    rest_design = REST_DESIGN;
+  }
+#endif // CONFIG_YOSEMITE
+
+  // Voltage Sense Method
+  tmp1 = (adc_vcc_ref[rest_design].r1 + adc_vcc_ref[rest_design].r2) * tmp * 25 * 10;
+  tmp2 = adc_vcc_ref[rest_design].r2 * 1024 ;
+  tmp3 = (adc_vcc_ref[rest_design].r1 * adc_vcc_ref[rest_design].v2) / adc_vcc_ref[rest_design].r2;
+  // printk("tmp3 = %d \n",tmp3);
+  voltage = (tmp1/tmp2) - tmp3;
+
+#ifndef CONFIG_YOSEMITE
+  // Higher voltage inputs require a divisor
+
+  if (adc_divisor[idx])
+	voltage /= adc_divisor[idx];
+#endif //CONFIG_YOSEMITE
+
+  return voltage;
+}
+
+static ssize_t
+ast_show_adc(struct device *dev, struct device_attribute *attr, char *sysfsbuf)
+{
+	struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
+	u32 voltage;
+
+	//sensor_attr->index : pwm_ch#
+	//sensor_attr->nr : attr#
+	switch(sensor_attr->nr)
+	{
+		case 0: //channel enable, disable
+			return sprintf(sysfsbuf, "%d : %s\n", ast_get_adc_en(ast_adc,sensor_attr->index),ast_get_adc_en(ast_adc,sensor_attr->index) ? "Enable":"Disable");
+			break;
+		case 1: //value
+			voltage = ast_get_voltage(sensor_attr->index);
+			return sprintf(sysfsbuf, "%d.%02d (V)\n",voltage/100, voltage%100);
+			break;
+		case 2: //alarm
+			return sprintf(sysfsbuf, "%d \n", ast_get_adc_alarm(ast_adc,sensor_attr->index));
+			break;
+		case 3: //upper
+			return sprintf(sysfsbuf, "%d \n", ast_get_adc_upper(ast_adc,sensor_attr->index));
+			break;
+		case 4: //lower
+			return sprintf(sysfsbuf, "%d \n", ast_get_adc_lower(ast_adc,sensor_attr->index));
+			break;
+		case 5: //hystersis enable
+			return sprintf(sysfsbuf, "%d : %s\n", ast_get_adc_hyster_en(ast_adc,sensor_attr->index),ast_get_adc_hyster_en(ast_adc,sensor_attr->index) ? "Enable":"Disable");
+			break;
+		case 6: //hystersis upper
+			return sprintf(sysfsbuf, "%d \n", ast_get_adc_hyster_upper(ast_adc,sensor_attr->index));
+			break;
+		case 7: //hystersis lower
+			return sprintf(sysfsbuf, "%d \n", ast_get_adc_hyster_lower(ast_adc,sensor_attr->index));
+			break;
+		case 8:
+			voltage = ast_get_voltage(sensor_attr->index);
+			return sprintf(sysfsbuf, "%d\n",voltage * 10);
+
+		default:
+			return -EINVAL;
+			break;
+	}
+}
+
+static ssize_t
+ast_store_adc(struct device *dev, struct device_attribute *attr, const char *sysfsbuf, size_t count)
+{
+	u32 input_val;
+	struct sensor_device_attribute_2 *sensor_attr =
+						to_sensor_dev_attr_2(attr);
+
+	input_val = simple_strtoul(sysfsbuf, NULL, 10);
+
+	//sensor_attr->index : pwm_ch#
+	//sensor_attr->nr : attr#
+	switch(sensor_attr->nr)
+	{
+		case 0: //enable, disable
+			ast_set_adc_en(ast_adc, sensor_attr->index, input_val);
+			break;
+		case 1: //value
+
+			break;
+		case 2: //alarm
+			break;
+		case 3:
+			ast_set_adc_upper(ast_adc, sensor_attr->index, input_val);
+			break;
+		case 4:
+			ast_set_adc_lower(ast_adc, sensor_attr->index, input_val);
+			break;
+		case 5: //hystersis
+			ast_set_adc_hyster_en(ast_adc, sensor_attr->index, input_val);
+			break;
+		case 6:
+			ast_set_adc_hyster_upper(ast_adc, sensor_attr->index, input_val);
+			break;
+		case 7:
+			ast_set_adc_hyster_lower(ast_adc, sensor_attr->index, input_val);
+			break;
+
+		default:
+			return -EINVAL;
+			break;
+	}
+
+	return count;
+}
+
+/* attr ADC sysfs 0~max adc channel
+*	 0 - show/store channel enable
+*	 1 - show value
+*	 2 - show alarm   get statuse
+*	 3 - show/store upper
+*	 4 - show/store lower
+*	 5 - show/store hystersis enable
+*	 6 - show/store hystersis upper
+*	 7 - show/store hystersis low
+*	 8 - show value as 1000s, expected by lm-sensors
+*/
+
+#define sysfs_adc_ch(index) \
+static SENSOR_DEVICE_ATTR_2(adc##index##_en, S_IRUGO | S_IWUSR, \
+	ast_show_adc, ast_store_adc, 0, index); \
+\
+static SENSOR_DEVICE_ATTR_2(adc##index##_value, S_IRUGO | S_IWUSR, \
+	ast_show_adc, NULL, 1, index); \
+\
+static SENSOR_DEVICE_ATTR_2(adc##index##_alarm, S_IRUGO | S_IWUSR, \
+	ast_show_adc, NULL, 2, index); \
+\
+static SENSOR_DEVICE_ATTR_2(adc##index##_upper, S_IRUGO | S_IWUSR, \
+	ast_show_adc, ast_store_adc, 3, index); \
+\
+static SENSOR_DEVICE_ATTR_2(adc##index##_lower, S_IRUGO | S_IWUSR, \
+	ast_show_adc, ast_store_adc, 4, index); \
+\
+static SENSOR_DEVICE_ATTR_2(adc##index##_hyster_en, S_IRUGO | S_IWUSR, \
+	ast_show_adc, ast_store_adc, 5, index); \
+\
+static SENSOR_DEVICE_ATTR_2(adc##index##_hyster_upper, S_IRUGO | S_IWUSR, \
+	ast_show_adc, ast_store_adc, 6, index); \
+\
+static SENSOR_DEVICE_ATTR_2(adc##index##_hyster_lower, S_IRUGO | S_IWUSR, \
+	ast_show_adc, ast_store_adc, 7, index); \
+\
+static SENSOR_DEVICE_ATTR_2(in##index##_input, S_IRUGO | S_IWUSR, \
+	ast_show_adc, NULL, 8, index); \
+\
+static struct attribute *adc##index##_attributes[] = { \
+	&sensor_dev_attr_adc##index##_en.dev_attr.attr, \
+	&sensor_dev_attr_adc##index##_value.dev_attr.attr, \
+	&sensor_dev_attr_adc##index##_alarm.dev_attr.attr, \
+	&sensor_dev_attr_adc##index##_upper.dev_attr.attr, \
+	&sensor_dev_attr_adc##index##_lower.dev_attr.attr, \
+	&sensor_dev_attr_adc##index##_hyster_en.dev_attr.attr, \
+	&sensor_dev_attr_adc##index##_hyster_upper.dev_attr.attr, \
+	&sensor_dev_attr_adc##index##_hyster_lower.dev_attr.attr, \
+	&sensor_dev_attr_in##index##_input.dev_attr.attr, \
+	NULL \
+};
+
+/*
+ * Create the needed functions for each pwm using the macro defined above
+ * (4 pwms are supported)
+ */
+sysfs_adc_ch(0);
+sysfs_adc_ch(1);
+sysfs_adc_ch(2);
+sysfs_adc_ch(3);
+sysfs_adc_ch(4);
+sysfs_adc_ch(5);
+sysfs_adc_ch(6);
+sysfs_adc_ch(7);
+sysfs_adc_ch(8);
+sysfs_adc_ch(9);
+sysfs_adc_ch(10);
+sysfs_adc_ch(11);
+#if defined(CONFIG_ARCH_AST2400) || defined(CONFIG_ARCH_AST2500)
+sysfs_adc_ch(12);
+sysfs_adc_ch(13);
+sysfs_adc_ch(14);
+sysfs_adc_ch(15);
+#endif
+
+static const struct attribute_group adc_attribute_groups[] = {
+	{ .attrs = adc0_attributes },
+	{ .attrs = adc1_attributes },
+	{ .attrs = adc2_attributes },
+	{ .attrs = adc3_attributes },
+	{ .attrs = adc4_attributes },
+	{ .attrs = adc5_attributes },
+	{ .attrs = adc6_attributes },
+	{ .attrs = adc7_attributes },
+	{ .attrs = adc8_attributes },
+	{ .attrs = adc9_attributes },
+	{ .attrs = adc10_attributes },
+	{ .attrs = adc11_attributes },
+#if defined(CONFIG_ARCH_AST2400) || defined(CONFIG_ARCH_AST2500)
+	{ .attrs = adc12_attributes },
+	{ .attrs = adc13_attributes },
+	{ .attrs = adc14_attributes },
+	{ .attrs = adc15_attributes },
+#endif
+};
+
+
+static int
+ast_adc_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	int err;
+	int ret=0;
+	int i;
+
+	dev_dbg(&pdev->dev, "ast_adc_probe \n");
+
+	ast_adc = kzalloc(sizeof(struct ast_adc_data), GFP_KERNEL);
+	if (!ast_adc) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (NULL == res) {
+		dev_err(&pdev->dev, "cannot get IORESOURCE_MEM\n");
+		ret = -ENOENT;
+		goto out_mem;
+	}
+
+	if (!request_mem_region(res->start, resource_size(res), res->name)) {
+		dev_err(&pdev->dev, "cannot reserved region\n");
+		ret = -ENXIO;
+		goto out_mem;
+	}
+
+	ast_adc->reg_base = ioremap(res->start, resource_size(res));
+	if (!ast_adc->reg_base) {
+		ret = -EIO;
+		goto out_region;
+	}
+
+	ast_adc->irq = platform_get_irq(pdev, 0);
+	if (ast_adc->irq < 0) {
+		dev_err(&pdev->dev, "no irq specified\n");
+		ret = -ENOENT;
+		goto out_region;
+	}
+
+	/* Register sysfs hooks */
+	ast_adc->hwmon_dev = hwmon_device_register(&pdev->dev);
+	if (IS_ERR(ast_adc->hwmon_dev)) {
+		ret = PTR_ERR(ast_adc->hwmon_dev);
+		goto out_region;
+	}
+
+	err = sysfs_create_group(&pdev->dev.kobj, &name_attribute_groups);
+	if (err)
+		goto out_region;
+
+	for(i=0; i<MAX_CH_NO; i++) {
+		err = sysfs_create_group(&pdev->dev.kobj, &adc_attribute_groups[i]);
+		if (err)
+			goto out_sysfs00;
+	}
+
+	ast_adc_ctrl_init();
+
+	printk(KERN_INFO "ast_adc: driver successfully loaded.\n");
+
+	return 0;
+
+
+//out_irq:
+//	free_irq(ast_adc->irq, NULL);
+out_sysfs00:
+	sysfs_remove_group(&pdev->dev.kobj, &name_attribute_groups);
+out_region:
+	release_mem_region(res->start, res->end - res->start + 1);
+out_mem:
+	kfree(ast_adc);
+out:
+	printk(KERN_WARNING "applesmc: driver init failed (ret=%d)!\n", ret);
+	return ret;
+}
+
+static int
+ast_adc_remove(struct platform_device *pdev)
+{
+	int i=0;
+	struct ast_adc_data *ast_adc = platform_get_drvdata(pdev);
+	struct resource *res;
+	printk(KERN_INFO "ast_adc: driver unloaded.\n");
+
+    hwmon_device_unregister(ast_adc->hwmon_dev);
+
+	for(i=0; i<5; i++)
+		sysfs_remove_group(&pdev->dev.kobj, &adc_attribute_groups[i]);
+
+	sysfs_remove_group(&pdev->dev.kobj, &name_attribute_groups);
+
+	platform_set_drvdata(pdev, NULL);
+//	free_irq(ast_adc->irq, ast_adc);
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	iounmap(ast_adc->reg_base);
+	release_mem_region(res->start, res->end - res->start + 1);
+	kfree(ast_adc);
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int
+ast_adc_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	printk("ast_adc_suspend : TODO \n");
+	return 0;
+}
+
+static int
+ast_adc_resume(struct platform_device *pdev)
+{
+	ast_adc_ctrl_init();
+	return 0;
+}
+
+#else
+#define ast_adc_suspend        NULL
+#define ast_adc_resume         NULL
+#endif
+
+static struct platform_driver ast_adc_driver = {
+	.probe			= ast_adc_probe,
+	.remove 		= __devexit_p(ast_adc_remove),
+    .suspend        = ast_adc_suspend,
+    .resume         = ast_adc_resume,
+    .driver         = {
+            .name   = "ast_adc",
+            .owner  = THIS_MODULE,
+    },
+};
+
+static int __init
+ast_adc_init(void)
+{
+	return platform_driver_register(&ast_adc_driver);
+}
+
+static void __exit
+ast_adc_exit(void)
+{
+	platform_driver_unregister(&ast_adc_driver);
+}
+
+module_init(ast_adc_init);
+module_exit(ast_adc_exit);
+
+MODULE_AUTHOR("Ryan Chen <ryan_chen@aspeedtech.com>");
+MODULE_DESCRIPTION("ADC driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/ast_lcp_80h.c b/drivers/hwmon/ast_lcp_80h.c
new file mode 100644
index 0000000..681d2d6
--- /dev/null
+++ b/drivers/hwmon/ast_lcp_80h.c
@@ -0,0 +1,312 @@
+/*
+ *  ast_lpc_snoop.c
+ *
+ *  ASPEED LPC Snoop controller driver
+ *
+ *  Copyright (C) 2012-2020  ASPEED Technology Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  History:
+ *    2012.11.26: Initial version [Ryan Chen]
+ */
+
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/timer.h>
+#include <linux/mutex.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon.h>
+#include <linux/workqueue.h>
+#include <linux/sysfs.h>
+#include <linux/err.h>
+
+#include <mach/hardware.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+
+#include <plat/regs-1070_lpc.h>
+
+struct ast_clpc_data {
+	struct device			*hwmon_dev;
+	void __iomem			*reg_base;			/* virtual */
+	int 					irq;				//ADC IRQ number 
+	u8 						80h_data;			//80h_data
+};
+
+static inline void
+ast_clpc_write(struct ast_clpc_data *ast_clpc, u32 val, u32 reg)
+{
+//	printk("write offset: %x, val: %x \n",reg,val);
+	writel(val, ast_clpc->reg_base+ reg);
+}
+
+static inline u32
+ast_clpc_read(struct ast_adc_data *ast_clpc, u32 reg)
+{
+	u32 val = readl(ast_clpc->reg_base + reg);
+//	printk("read offset: %x, val: %x \n",reg,val);
+	return val;
+}
+
+static irqreturn_t ast_lpc_80h_handler(int irq, void *dev_id)
+{
+	struct ast_clpc_data *ast_clpc = dev_id;
+	u32 sts = ast_clpc_read(ast_clpc, AST1070_LPC_80H_CTRL);
+
+	if(isr_sts & AST1070_LPC_80H_CLR) {
+		ast_clpc->80h_data = ast_clpc_read(ast_clpc, AST1070_LPC_80H_DATA);	
+		ast_clpc_write(ast_clpc, AST1070_LPC_80H_CLR, AST1070_LPC_80H_DATA);	
+	} else
+		printk("IRQ ISSUE bug \n");
+
+	return IRQ_HANDLED;
+
+}
+
+static void ast_clpc_80h_init(struct ast_clpc_data *ast_clpc, u16 addr)
+{
+	ast_clpc_write(ast_clpc, AST1070_LPC_80H_CLR, AST1070_LPC_80H_CTRL);
+	
+	//Snoop Port
+	ast_clpc_write(ast_clpc, addr & 0xff, AST1070_LPC_L_80H_ADDR);
+	ast_clpc_write(ast_clpc, (addr & 0xff) >> 8 , AST1070_LPC_H_80H_ADDR);
+	//Clear Interrupt and Enable
+	//AST1070 BUG :===: D[4] W1C	
+	ast_clpc_write(ast_clpc, AST1070_LPC_80H_CLR, AST1070_LPC_80H_DATA);		
+	ast_clpc_write(ast_clpc, AST1070_LPC_80H_CLR | AST1070_LPC_80H_EN, AST1070_LPC_80H_CTRL);
+}
+
+/* attr 80H sysfs 0~max adc channel 
+*	 0 - show/store 80h addr
+*	 1 - show 80h data
+*/
+
+static ssize_t 
+ast_show_clpc(struct device *dev, struct device_attribute *attr, char *sysfsbuf)
+{
+	struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
+	u16 tmp;
+	u32 voltage,tmp1, tmp2,tmp3;
+
+	//sensor_attr->index : pwm_ch#
+	//sensor_attr->nr : attr#
+	switch(sensor_attr->nr) 
+	{
+		case 0: //channel enable, disable
+			return sprintf(sysfsbuf, "%d \n", ast_clpc->80h_data);
+			break;
+
+		default:
+			return -EINVAL;
+			break;
+	}
+}
+
+static ssize_t 
+ast_store_clpc(struct device *dev, struct device_attribute *attr, const char *sysfsbuf, size_t count)
+{
+	u32 input_val;
+	struct sensor_device_attribute_2 *sensor_attr =
+						to_sensor_dev_attr_2(attr);
+
+	input_val = simple_strtoul(sysfsbuf, NULL, 10);
+
+	//sensor_attr->index : pwm_ch#
+	//sensor_attr->nr : attr#
+	switch(sensor_attr->nr) 
+	{
+		case 0: //enable, disable
+
+			break;
+		default:
+			return -EINVAL;
+			break;
+	}
+
+	return count;
+}
+
+/* attr ADC sysfs 0~max adc channel 
+*	 0 - show 80h data
+*/
+
+#define sysfs_clpc(index) \
+static SENSOR_DEVICE_ATTR_2(clpc##index##_en, S_IRUGO | S_IWUSR, \
+	ast_show_clpc, NULL, 0, index); \
+\
+static struct attribute *clpc##index##_attributes[] = { \
+	&sensor_dev_attr_clpc##index##_80h.dev_attr.attr, \
+	NULL \
+};
+
+/*
+ * Create the needed functions for each pwm using the macro defined above
+ * (4 pwms are supported)
+ */
+sysfs_clpc(0);
+
+static const struct attribute_group clpc_attribute_groups[] = {
+	{ .attrs = clpc0_attributes },
+};
+
+
+static int 
+ast_clpc_probe(struct platform_device *pdev)
+{
+	struct ast_clpc_data *ast_clpc;
+	struct resource *res;
+	int err;
+	int ret=0;
+	int i;
+
+	dev_dbg(&pdev->dev, "ast_clpc_probe \n");
+
+	ast_clpc = kzalloc(sizeof(struct ast_clpc_data), GFP_KERNEL);
+	if (!ast_adc) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (NULL == res) {
+		dev_err(&pdev->dev, "cannot get IORESOURCE_MEM\n");
+		ret = -ENOENT;
+		goto out_mem;
+	}
+
+	if (!request_mem_region(res->start, resource_size(res), res->name)) {
+		dev_err(&pdev->dev, "cannot reserved region\n");
+		ret = -ENXIO;
+		goto out_mem;
+	}
+
+	ast_clpc->reg_base = ioremap(res->start, resource_size(res));
+	if (!ast_clpc->reg_base) {
+		ret = -EIO;
+		goto out_region;
+	}
+
+	ast_clpc->irq = platform_get_irq(pdev, 3);
+	if (ast_clpc->irq < 0) {
+		dev_err(&pdev->dev, "no irq specified\n");
+		ret = -ENOENT;
+		goto out_region;
+	}
+
+
+	/* Register sysfs hooks */
+	ast_clpc->hwmon_dev = hwmon_device_register(&pdev->dev);
+	if (IS_ERR(ast_clpc->hwmon_dev)) {
+		ret = PTR_ERR(ast_clpc->hwmon_dev);
+		goto out_region;
+	}
+
+	for(i=0; i< MAX_CH_NO; i++) {
+		err = sysfs_create_group(&pdev->dev.kobj, &clpc_attribute_groups[i]);
+		if (err)
+			goto out_region;
+	}
+
+	ast_clpc_80h_init();
+
+	ret = request_irq(ast_clpc->irq, ast_lpc_handler, IRQF_SHARED,
+			  i2c_dev->adap.name, i2c_dev);
+	if (ret) {
+		printk(KERN_INFO "I2C: Failed request irq %d\n", i2c_dev->irq);
+		goto out_region;
+	}
+
+	platform_set_drvdata(pdev, ast_clpc);
+	
+	printk(KERN_INFO "ast_adc: driver successfully loaded.\n");
+
+	return 0;
+
+
+//out_irq:
+//	free_irq(ast_clpc->irq, NULL);
+out_region:
+	release_mem_region(res->start, res->end - res->start + 1);
+out_mem:
+	kfree(ast_clpc);
+out:
+	printk(KERN_WARNING "applesmc: driver init failed (ret=%d)!\n", ret);
+	return ret;
+}
+
+static int 
+ast_adc_remove(struct platform_device *pdev)
+{
+	int i=0;
+	struct ast_adc_data *ast_clpc = platform_get_drvdata(pdev);
+	struct resource *res;
+	printk(KERN_INFO "ast_adc: driver unloaded.\n");
+
+    hwmon_device_unregister(ast_clpc->hwmon_dev);
+
+	for(i=0; i<5; i++)
+		sysfs_remove_group(&pdev->dev.kobj, &clpc_attribute_groups[i]);
+
+	platform_set_drvdata(pdev, NULL);
+//	free_irq(ast_adc->irq, ast_adc);
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	iounmap(ast_clpc->reg_base);
+	release_mem_region(res->start, res->end - res->start + 1);
+	kfree(ast_clpc);
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int 
+ast_adc_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	printk("ast_adc_suspend : TODO \n");
+	return 0;
+}
+
+static int 
+ast_adc_resume(struct platform_device *pdev)
+{
+	ast_adc_ctrl_init();
+	return 0;
+}
+
+#else
+#define ast_adc_suspend        NULL
+#define ast_adc_resume         NULL
+#endif
+
+static struct platform_driver ast_adc_driver = {
+	.probe			= ast_adc_probe,
+	.remove 		= __devexit_p(ast_adc_remove),
+    .suspend        = ast_adc_suspend,
+    .resume         = ast_adc_resume,
+    .driver         = {
+            .name   = "ast_adc",
+            .owner  = THIS_MODULE,
+    },
+};
+
+static int __init 
+ast_adc_init(void)
+{
+	return platform_driver_register(&ast_adc_driver);
+}
+
+static void __exit 
+ast_adc_exit(void)
+{
+	platform_driver_unregister(&ast_adc_driver);
+}
+
+module_init(ast_adc_init);
+module_exit(ast_adc_exit);
+
+MODULE_AUTHOR("Ryan Chen <ryan_chen@aspeedtech.com>");
+MODULE_DESCRIPTION("ADC driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/ast_pwm_fan.c b/drivers/hwmon/ast_pwm_fan.c
new file mode 100644
index 0000000..5864f5c
--- /dev/null
+++ b/drivers/hwmon/ast_pwm_fan.c
@@ -0,0 +1,2224 @@
+/*
+ *  ast_pwm_fan.c
+ *
+ *  ASPEED PWM & Fan Tacho controller driver
+ *
+ *  Copyright (C) 2012-2020  ASPEED Technology Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  History:
+ *    2012.08.06: Initial version [Ryan Chen]
+ */
+/* CLK sysfs
+* 0 : enable
+* 1 : clk_source */
+
+/* PWM sysfs A~H (0~7)
+*  0 - show/store enable
+*  1 - show/store type
+*  2 - show/store falling
+*  3 - show/store rising */
+
+/*PWM M/N/O Type sysfs
+*  0 - show/store unit
+*  1 - show/store division_l
+*  2 - show/store division_h */
+
+/* FAN sysfs (0~15)
+*  - show/store enable
+*  - show/store source
+*  - show/store rpm
+*  - show/store alarm
+*  - show/store alarm_en */
+
+/* Fan M/N/O Type sysfs 
+*  0 - show/store enable
+*  1 - show/store mode
+*  2 - show/store unit
+*  3 - show/store division
+*  4 - show/store limit */
+
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/timer.h>
+#include <linux/mutex.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon.h>
+#include <linux/workqueue.h>
+#include <linux/sysfs.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+
+#include <asm/irq.h>
+#include <asm/io.h>
+
+#ifdef CONFIG_COLDFIRE
+#include <asm/arch/regs-pwm_fan.h>
+#include <asm/arch/ast_pwm_techo.h>
+#else
+#include <plat/regs-pwm_fan.h>
+#include <mach/ast_pwm_techo.h>
+#endif
+
+#include <plat/ast-scu.h>
+
+//#define MCLK	1
+
+struct ast_pwm_tacho_data {
+	struct device			*hwmon_dev;
+	void __iomem			*reg_base;			/* virtual */
+	int 					irq;				
+	struct ast_pwm_driver_data *ast_pwm_data;	
+};
+
+struct ast_pwm_tacho_data *ast_pwm_tacho;
+
+static u8 ast_get_pwm_type(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_ch);
+static u8 ast_get_pwm_en(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_ch);
+static u8 ast_get_tacho_type_division(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type);
+static u16 ast_get_tacho_type_unit(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type);
+static u8 ast_get_pwm_clock_division_h(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type);
+static u8 ast_get_pwm_clock_division_l(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type);
+static u8 ast_get_pwm_clock_unit(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type);
+
+static inline void
+ast_pwm_tacho_write(struct ast_pwm_tacho_data *ast_pwm_tacho, u32 val, u32 reg)
+{
+//	printk("write offset: %x, val: %x \n",reg,val);
+	writel(val, ast_pwm_tacho->reg_base+ reg);
+}
+
+static inline u32
+ast_pwm_tacho_read(struct ast_pwm_tacho_data *ast_pwm_tacho, u32 reg)
+{
+	u32 val = readl(ast_pwm_tacho->reg_base + reg);
+//	printk("read offset: %x, val: %x \n",reg,val);
+	return val;
+}
+
+/////////////////////////////////////////
+/*
+//1. The PWM base clock = 24Mhz / (Clock_Division_H D[7:4] in PTCR04 * Clock_Division_L D[3:0] in PTCR04)
+//2. The frequency of PWM = The PWM base clock / (PWM period D[15:8] in PTCR04 + 1)
+//3. If you plan to output 25Khz PWM frequency and 10% step of duty cycle, we suggest to set 0x943 in PTCR04 register.
+//   The PWM frequency = 24Mhz / (16 * 6 * (9 + 1)) = 25Khz
+//   duty cycle settings in the PTCR08 register:
+//   0x1e786008 D[15:0] = 0x0900, duty = 90%
+//   0x1e786008 D[15:0] = 0x0902, duty = 70%
+//   .
+//   .
+//   .
+//   0x1e786008 D[15:0] = 0x0908, duty = 10%
+//   0x1e786008 D[15:0] = 0x0909, duty = 100%
+//   0x1e786008 D[15:0] = 0x0000, duty = 100%
+	(falling) - (rising+1) /unit
+*/
+
+static void ast_pwm_taco_init(void)
+{
+	uint32_t val;
+
+	//Enable PWM TACH CLK **************************************************
+	// Set M/N/O out is 25Khz
+	//The PWM frequency = 24Mhz / (16 * 6 * (9 + 1)) = 25Khz
+	ast_pwm_tacho_write(ast_pwm_tacho, 0x09430943, AST_PTCR_CLK_CTRL);
+	ast_pwm_tacho_write(ast_pwm_tacho, 0x0943, AST_PTCR_CLK_EXT_CTRL);
+
+	//FULL SPEED at initialize 100% pwm A~H
+	ast_pwm_tacho_write(ast_pwm_tacho, 0x0, AST_PTCR_DUTY0_CTRL);
+	ast_pwm_tacho_write(ast_pwm_tacho, 0x0, AST_PTCR_DUTY1_CTRL);
+	ast_pwm_tacho_write(ast_pwm_tacho, 0x0, AST_PTCR_DUTY2_CTRL);
+	ast_pwm_tacho_write(ast_pwm_tacho, 0x0, AST_PTCR_DUTY3_CTRL);
+
+	//Set TACO M/N/O initial unit 0x1000, falling , divide 4 , Enable
+	ast_pwm_tacho_write(ast_pwm_tacho, 0x10000001, AST_PTCR_TYPEM_CTRL0);
+	ast_pwm_tacho_write(ast_pwm_tacho, 0x10000001, AST_PTCR_TYPEN_CTRL0);
+#ifdef PWM_TYPE_O	
+	ast_pwm_tacho_write(ast_pwm_tacho, 0x10000001, AST_PTCR_TYPEO_CTRL0);
+#endif
+
+	// TACO measure period = 24000000 / 2 / 2 / 256 / 4096 / 1 (only enable 1 TACHO) = 5.72Hz, it means that software needs to
+	//	 wait at least 0.2 sec to get refreshed TACO value. If you will enable more TACO or require faster response, you have to
+	//	 control the clock divisor and the period to be smaller
+
+	//Full Range to do measure unit 0x1000
+	ast_pwm_tacho_write(ast_pwm_tacho, 0x10000000, AST_PTCR_TYPEM_CTRL1);
+	ast_pwm_tacho_write(ast_pwm_tacho, 0x10000000, AST_PTCR_TYPEN_CTRL1);
+#ifdef PWM_TYPE_O	
+	ast_pwm_tacho_write(ast_pwm_tacho, 0x10000000, AST_PTCR_TYPEO_CTRL1);
+#endif
+
+	//TACO Source Selection, PWMA for fan0~15 
+	ast_pwm_tacho_write(ast_pwm_tacho, 0x0, AST_PTCR_TACH_SOURCE);
+	ast_pwm_tacho_write(ast_pwm_tacho, 0x0, AST_PTCR_TACH_SOURCE_EXT);
+
+	//PWM A~H -> Disable , type M, 
+	//Tacho 0~15 Disable
+	//CLK source 24Mhz
+	val = AST_PTCR_CTRL_PWMA_EN | AST_PTCR_CTRL_PWMB_EN
+	  | AST_PTCR_CTRL_PWMC_EN | AST_PTCR_CTRL_PWMD_EN
+	  | AST_PTCR_CTRL_CLK_EN;
+#ifdef MCLK
+	ast_pwm_tacho_write(ast_pwm_tacho, val|AST_PTCR_CTRL_CLK_MCLK, AST_PTCR_CTRL);
+#else
+	ast_pwm_tacho_write(ast_pwm_tacho, val, AST_PTCR_CTRL);
+#endif
+	val = AST_PTCR_CTRL_PWME_EN | AST_PTCR_CTRL_PWMF_EN
+	  | AST_PTCR_CTRL_PWMG_EN | AST_PTCR_CTRL_PWMH_EN;
+	ast_pwm_tacho_write(ast_pwm_tacho, val, AST_PTCR_CTRL_EXT);
+}
+
+/*index 0 : clk_en , 1: clk_source*/
+static ssize_t 
+ast_store_clk(struct device *dev, struct device_attribute *attr, const char *sysfsbuf, size_t count)
+{
+	u32 input_val;
+	struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
+
+	input_val = simple_strtoul(sysfsbuf, NULL, 10);
+
+	if ((input_val > 1) || (input_val < 0)) 
+		return -EINVAL;
+
+	//sensor_attr->index : tacho#
+	//sensor_attr->nr : attr#
+	switch(sensor_attr->nr)	
+	{
+		case 0:	//clk_en
+			if(input_val)
+				ast_pwm_tacho_write(ast_pwm_tacho,
+						ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL) | AST_PTCR_CTRL_CLK_EN,
+						AST_PTCR_CTRL);
+			else
+				ast_pwm_tacho_write(ast_pwm_tacho,
+						ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL) & ~AST_PTCR_CTRL_CLK_EN,
+						AST_PTCR_CTRL);
+			break;
+		case 1: //clk_source
+			if(input_val) {
+				ast_pwm_tacho_write(ast_pwm_tacho,
+						ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL) | AST_PTCR_CTRL_CLK_MCLK,
+						AST_PTCR_CTRL);
+			} else {
+				ast_pwm_tacho_write(ast_pwm_tacho,
+						ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL) & ~AST_PTCR_CTRL_CLK_MCLK,
+						AST_PTCR_CTRL);
+			}
+			break;
+		default:
+			return -EINVAL;
+			break;
+	}
+
+	return count;
+
+}
+
+
+static ssize_t 
+ast_show_clk(struct device *dev, struct device_attribute *attr, char *sysfsbuf)
+{
+	struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
+
+	//sensor_attr->index : fan#
+	//sensor_attr->nr : attr#
+	switch(sensor_attr->nr)	
+	{
+		case 0:	//clk_en
+			if(AST_PTCR_CTRL_CLK_EN & ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL))
+				return sprintf(sysfsbuf, "1: Enable\n");
+			else
+				return sprintf(sysfsbuf, "0: Disable\n");
+			break;
+		case 1: //clk_source
+			if(AST_PTCR_CTRL_CLK_MCLK & ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL))
+					return sprintf(sysfsbuf, "1: MCLK \n");
+				else
+					return sprintf(sysfsbuf, "0: 24Mhz\n");
+
+			break;
+		default:
+			return sprintf(sysfsbuf, "ERROR CLK Index\n");
+			break;
+	}
+}
+
+static u32
+ast_get_tacho_measure_period(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type)
+{
+	u32 clk,clk_unit,div_h,div_l,tacho_unit,tacho_div;
+	//TODO ... 266
+	if(AST_PTCR_CTRL_CLK_MCLK & ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL)) {
+		//TODO .....
+		clk = ast_pwm_tacho->ast_pwm_data->get_pwm_clock();
+	} else
+		clk = 24*1000*1000;
+	
+	clk_unit = ast_get_pwm_clock_unit(ast_pwm_tacho,pwm_type);
+	div_h = ast_get_pwm_clock_division_h(ast_pwm_tacho,pwm_type);
+	div_h = 0x1 << div_h;
+	div_l = ast_get_pwm_clock_division_l(ast_pwm_tacho,pwm_type);
+//	div_l = (div_l) << 1;
+	if(div_l == 0)
+		div_l = 1;
+	else
+		div_l = div_l * 2; 
+	
+	tacho_unit = ast_get_tacho_type_unit(ast_pwm_tacho,pwm_type);
+	tacho_div = ast_get_tacho_type_division(ast_pwm_tacho,pwm_type);
+
+	tacho_div = 0x4 << (tacho_div*2);
+//	printk("clk %d,clk_unit %d, div_h %d, div_l %d, tacho_unit %d, tacho_div %d\n",clk,clk_unit, div_h, div_l, tacho_unit, tacho_div);
+	return clk/(clk_unit*div_h*div_l*tacho_div*tacho_unit);
+}
+
+static u8
+ast_get_tacho_type_division(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type)
+{
+	u32 tmp = 0;
+	switch(pwm_type) {
+		case PWM_TYPE_M:
+			tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEM_CTRL0);
+			break;
+		case PWM_TYPE_N:
+			tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEN_CTRL0);
+			break;
+#ifdef PWM_TYPE_O			
+		case PWM_TYPE_O:
+			tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEO_CTRL0);
+			break;
+#endif			
+		default:
+			printk("error type !! \n");
+			break;
+			
+	}
+
+	return ((tmp & TYPE_CTRL0_CLK_DIVISION_MASK) >> TYPE_CTRL0_CLK_DIVISION);
+}
+
+static void
+ast_set_tacho_type_division(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type, u32 division)
+{
+	u32 tmp = 0;
+	if(division > 0x7)
+		return;
+
+	switch(pwm_type) {
+		case PWM_TYPE_M:
+			tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEM_CTRL0);
+			break;
+		case PWM_TYPE_N:
+			tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEN_CTRL0);
+			break;
+#ifdef PWM_TYPE_O			
+		case PWM_TYPE_O:
+			tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEO_CTRL0);
+			break;
+#endif			
+		default:
+			printk("ERROR type !! \n");
+			break;
+	}
+
+	tmp &= ~TYPE_CTRL0_CLK_DIVISION_MASK;
+	tmp |= (division << TYPE_CTRL0_CLK_DIVISION);
+
+	switch(pwm_type) {
+		case PWM_TYPE_M:
+			ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_TYPEM_CTRL0);
+			break;
+		case PWM_TYPE_N:
+			ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_TYPEN_CTRL0);
+			break;
+#ifdef PWM_TYPE_O			
+		case PWM_TYPE_O:
+			ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_TYPEO_CTRL0);
+			break;
+#endif			
+		default:
+			printk("ERROR type !! \n");
+			break;
+	}
+	
+}
+
+static u16
+ast_get_tacho_type_unit(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type)
+{
+	u32 tmp = 0;
+
+	switch(pwm_type) {
+		case PWM_TYPE_M:
+			tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEM_CTRL0);
+			break;
+		case PWM_TYPE_N:
+			tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEN_CTRL0);
+			break;
+#ifdef PWM_TYPE_O			
+		case PWM_TYPE_O:
+			tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEO_CTRL0);
+			break;
+#endif			
+		default:
+			printk("ERROR type !! \n");
+			break;
+	}
+	
+	return ((tmp & TYPE_CTRL0_FAN_PERIOD_MASK) >> TYPE_CTRL0_FAN_PERIOD);
+}
+
+static void
+ast_set_tacho_type_unit(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type,u32 unit)
+{
+	u32 tmp = 0;
+
+	if(unit > 0xffff)
+		return;
+
+	switch(pwm_type) {
+		case PWM_TYPE_M:
+			tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEM_CTRL0);
+			break;
+		case PWM_TYPE_N:
+			tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEN_CTRL0);
+			break;
+#ifdef PWM_TYPE_O			
+		case PWM_TYPE_O:
+			tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEO_CTRL0);
+			break;
+#endif			
+		default:
+			printk("ERROR type !! \n");
+			break;
+	}	
+
+	tmp &= ~TYPE_CTRL0_FAN_PERIOD_MASK;
+	tmp |= (unit << TYPE_CTRL0_FAN_PERIOD);
+
+	switch(pwm_type) {
+		case PWM_TYPE_M:
+			ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_TYPEM_CTRL0);
+			break;
+		case PWM_TYPE_N:
+			ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_TYPEN_CTRL0);
+			break;
+#ifdef PWM_TYPE_O			
+		case PWM_TYPE_O:
+			ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_TYPEO_CTRL0);
+			break;
+#endif			
+		default:
+			printk("ERROR type !! \n");
+			break;
+	}	
+	
+}
+
+static u32
+ast_get_tacho_type_mode(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type)
+{
+	u32 tmp = 0;
+
+	switch(pwm_type) {
+		case PWM_TYPE_M:
+			tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEM_CTRL0);
+			break;
+		case PWM_TYPE_N:
+			tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEN_CTRL0);
+			break;
+#ifdef PWM_TYPE_O			
+		case PWM_TYPE_O:
+			tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEO_CTRL0);
+			break;
+#endif			
+		default:
+			printk("ERROR type !! \n");
+			break;
+	}	
+
+	return ((tmp & TYPE_CTRL0_FAN_MODE_MASK) >> TYPE_CTRL0_FAN_MODE);
+}
+
+static void
+ast_set_tacho_type_mode(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type,u32 mode)
+{
+	u32 tmp = 0;
+	if(mode > 0x2)
+		return;
+
+	switch(pwm_type) {
+		case PWM_TYPE_M:
+			tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEM_CTRL0);
+			break;
+		case PWM_TYPE_N:
+			tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEN_CTRL0);
+			break;
+#ifdef PWM_TYPE_O			
+		case PWM_TYPE_O:
+			tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEO_CTRL0);
+			break;
+#endif			
+		default:
+			printk("ERROR type !! \n");
+			break;
+	}	
+
+	tmp &= ~TYPE_CTRL0_FAN_MODE_MASK;
+	tmp |= (mode << TYPE_CTRL0_FAN_MODE);
+
+	switch(pwm_type) {
+		case PWM_TYPE_M:
+			ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_TYPEM_CTRL0);
+			break;
+		case PWM_TYPE_N:
+			ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_TYPEN_CTRL0);
+			break;
+#ifdef PWM_TYPE_O			
+		case PWM_TYPE_O:
+			ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_TYPEO_CTRL0);
+			break;
+#endif			
+		default:
+			printk("ERROR type !! \n");
+			break;
+	}	
+
+}
+
+static u8
+ast_get_tacho_type_en(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type)
+{
+	u8 tmp;
+	switch(pwm_type) {
+		case PWM_TYPE_M:
+			tmp = (TYPE_CTRL0_FAN_TYPE_EN & ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEM_CTRL0));
+			break;
+		case PWM_TYPE_N:
+			tmp = (TYPE_CTRL0_FAN_TYPE_EN & ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEN_CTRL0));
+			break;
+#ifdef PWM_TYPE_O			
+		case PWM_TYPE_O:
+			tmp = (TYPE_CTRL0_FAN_TYPE_EN & ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEO_CTRL0));
+			break;
+#endif			
+		default:
+			printk("ERROR type !! \n");
+			break;
+	}	
+
+	return tmp;
+}
+
+static void
+ast_set_tacho_type_en(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type,u32 enable)
+{
+	switch(pwm_type) {
+		case PWM_TYPE_M:
+			ast_pwm_tacho_write(ast_pwm_tacho, 
+				ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEM_CTRL0) | enable, 
+				AST_PTCR_TYPEM_CTRL0);
+
+			break;
+		case PWM_TYPE_N:
+			ast_pwm_tacho_write(ast_pwm_tacho, 
+			ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEN_CTRL0) | enable, 
+			AST_PTCR_TYPEN_CTRL0);
+
+			break;
+#ifdef PWM_TYPE_O			
+		case PWM_TYPE_O:
+			ast_pwm_tacho_write(ast_pwm_tacho,
+			ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEO_CTRL0) | enable, 
+			AST_PTCR_TYPEO_CTRL0);
+
+			break;
+#endif			
+		default:
+			printk("ERROR type !! \n");
+			break;
+	}	
+}
+
+static u32
+ast_get_tacho_type_limit(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type)
+{
+	switch(pwm_type) {
+		case PWM_TYPE_M:
+			return (FAN_LIMIT_MASK & ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEM_LIMIT));
+			break;
+		case PWM_TYPE_N:
+			return (FAN_LIMIT_MASK & ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEN_LIMIT));
+			break;
+#ifdef PWM_TYPE_O			
+		case PWM_TYPE_O:
+			return (FAN_LIMIT_MASK & ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TYPEO_LIMIT));
+			break;
+#endif			
+		default:
+			printk("ERROR type !! \n");
+			break;
+	}	
+}
+
+static void
+ast_set_tacho_type_limit(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type,u32 limit)
+{
+	if(limit > FAN_LIMIT_MASK)
+		return;
+
+	switch(pwm_type) {
+		case PWM_TYPE_M:
+			ast_pwm_tacho_write(ast_pwm_tacho, limit, AST_PTCR_TYPEM_LIMIT);
+			break;
+		case PWM_TYPE_N:
+			ast_pwm_tacho_write(ast_pwm_tacho, limit, AST_PTCR_TYPEN_LIMIT);
+			break;
+#ifdef PWM_TYPE_O			
+		case PWM_TYPE_O:
+			ast_pwm_tacho_write(ast_pwm_tacho, limit, AST_PTCR_TYPEO_LIMIT);
+			break;
+#endif			
+		default:
+			printk("ERROR type !! \n");
+			break;
+	}	
+	
+}
+
+static u8
+ast_get_tacho_alarm_en(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 tacho_ch)
+{
+	//tacho source
+	if(	ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_INTR_CTRL) & INTR_CTRL_EN_NUM(tacho_ch))
+		return 1;
+	else
+		return 0;
+}
+
+static void
+ast_set_tacho_alarm_en(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 tacho_ch, u8 enable)
+{
+	//tacho source 
+	if(enable == 1)
+		ast_pwm_tacho_write(ast_pwm_tacho,
+			ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_INTR_CTRL) | INTR_CTRL_EN_NUM(tacho_ch), 
+			AST_PTCR_INTR_CTRL);
+	else
+		ast_pwm_tacho_write(ast_pwm_tacho,
+			ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_INTR_CTRL) & ~(INTR_CTRL_EN_NUM(tacho_ch)), 
+			AST_PTCR_INTR_CTRL);
+}
+
+static u8
+ast_get_tacho_alarm(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 tacho_ch)
+{
+	//tacho source 
+	if(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_INTR_STS) & INTR_CTRL_NUM(tacho_ch))
+		return 1;
+	else
+		return 0;
+}
+
+static u8 
+ast_get_tacho_en(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 tacho_ch)
+{
+	if(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL) & AST_PTCR_CTRL_FAN_NUM_EN(tacho_ch))
+		return 1;
+	else 
+		return 0;
+}
+
+static void 
+ast_set_tacho_en(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 tacho_ch, u8 enable)
+{
+	//tacho number enable
+	if(enable)
+		ast_pwm_tacho_write(ast_pwm_tacho,
+			ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL) | AST_PTCR_CTRL_FAN_NUM_EN(tacho_ch),
+			AST_PTCR_CTRL);
+	else
+		ast_pwm_tacho_write(ast_pwm_tacho,
+			ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL) & ~(AST_PTCR_CTRL_FAN_NUM_EN(tacho_ch)),
+			AST_PTCR_CTRL);		
+}
+
+static u8
+ast_get_tacho_source(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 tacho_ch)
+{
+    u32 tmp1, tmp2;
+
+	//tacho source 
+    tmp1 = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TACH_SOURCE);
+	tmp1 &= TACH_PWM_SOURCE_MASK_BIT01(tacho_ch);
+	tmp1 = tmp1 >> (TACH_PWM_SOURCE_BIT01(tacho_ch));
+	
+	tmp2 = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TACH_SOURCE_EXT);
+    tmp2 &= TACH_PWM_SOURCE_MASK_BIT2(tacho_ch);
+	tmp2 = tmp2 >> (TACH_PWM_SOURCE_BIT2(tacho_ch));
+	tmp2 = tmp2 << 2;
+
+	return (tmp2 | tmp1);
+}
+
+static void
+ast_set_tacho_source(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 tacho_ch, u8 tacho_source)
+{
+    u32 tmp1, tmp2;
+	if(tacho_source > 7)
+		return;
+	
+	//tacho source 
+    tmp1 = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TACH_SOURCE);
+	tmp1 &= ~(TACH_PWM_SOURCE_MASK_BIT01(tacho_ch));
+	tmp1 |= ((tacho_source &0x3) << (TACH_PWM_SOURCE_BIT01(tacho_ch)));
+	
+	tmp2 = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_TACH_SOURCE_EXT);
+    tmp2 &= ~(TACH_PWM_SOURCE_MASK_BIT2(tacho_ch));
+	tmp2 |= (((tacho_source &0x4)>>2) << (TACH_PWM_SOURCE_BIT2(tacho_ch)));
+
+	ast_pwm_tacho_write(ast_pwm_tacho, tmp1, AST_PTCR_TACH_SOURCE);
+	ast_pwm_tacho_write(ast_pwm_tacho, tmp2, AST_PTCR_TACH_SOURCE_EXT);
+
+}
+
+static u32
+ast_get_tacho_rpm(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 tacho_ch)
+{
+    u32 raw_data, rpm, tacho_clk_div, clk_source, timeout=0;
+	u8 tacho_source, pwm_type,tacho_type_en;
+
+	if(!(ast_get_tacho_en(ast_pwm_tacho,tacho_ch)))
+		return 0;
+	
+	//write 0 
+	ast_pwm_tacho_write(ast_pwm_tacho, 0, AST_PTCR_TRIGGER);
+
+	//write 1
+	ast_pwm_tacho_write(ast_pwm_tacho, 0x1 << tacho_ch, AST_PTCR_TRIGGER);
+
+	tacho_source = ast_get_tacho_source(ast_pwm_tacho, tacho_ch);
+	pwm_type = ast_get_pwm_type(ast_pwm_tacho, tacho_source);
+	tacho_type_en = ast_get_tacho_type_en(ast_pwm_tacho, pwm_type);
+	
+//	printk("source: %d,type: %d,en: %d \n",tacho_source,pwm_type,tacho_type_en);
+
+	//check pwm_type and get clock division
+	if(!tacho_type_en)
+		return 0;
+
+	//Wait ready
+	while(!(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_RESULT) & (0x1 << RESULT_STATUS))) {
+		timeout++;
+		if(timeout > 25)
+			return 0;
+	};
+
+	raw_data = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_RESULT)& RESULT_VALUE_MASK;
+	tacho_clk_div = ast_get_tacho_type_division(ast_pwm_tacho, pwm_type);
+
+//	printk("raw div = %d \n",tacho_clk_div);
+	
+	tacho_clk_div = 0x4 << (tacho_clk_div*2);
+//	printk("raw div = %d \n",tacho_clk_div);
+
+	//TODO 166
+	if(AST_PTCR_CTRL_CLK_MCLK & ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL))
+		clk_source = 166*1000*1000;
+	else
+		clk_source = 24*1000*1000;
+	
+	//	printk("raw_data %d, clk_source %d, tacho_clk_div %d \n",raw_data, clk_source, tacho_clk_div);
+	rpm = (clk_source * 60) / (2 * raw_data * tacho_clk_div);
+	
+    return rpm; 
+}
+
+static u8 
+ast_get_pwm_clock_division_h(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type)
+{
+	u8 tmp=0;
+
+	switch (pwm_type) {
+	case PWM_TYPE_M:
+		tmp = (ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CLK_CTRL) & AST_PTCR_CLK_CTRL_TYPEM_H_MASK) >> AST_PTCR_CLK_CTRL_TYPEM_H;
+		break;
+	case PWM_TYPE_N:
+		tmp = (ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CLK_CTRL) & AST_PTCR_CLK_CTRL_TYPEN_H_MASK) >> AST_PTCR_CLK_CTRL_TYPEN_H;
+		break;
+#ifdef PWM_TYPE_O
+	case PWM_TYPE_O:
+		tmp = (ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CLK_EXT_CTRL) & AST_PTCR_CLK_CTRL_TYPEO_H_MASK) >> AST_PTCR_CLK_CTRL_TYPEO_H;		
+		break;
+#endif		
+	default:
+		printk("error channel ast_get_pwm_clock_division_h %d \n",pwm_type);
+		break;
+	}
+	return tmp;
+}
+
+static void 
+ast_set_pwm_clock_division_h(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type, u8 div_high)
+{
+	if(div_high > 0xf)
+		return;
+	switch (pwm_type) {
+	case PWM_TYPE_M:
+	 ast_pwm_tacho_write(ast_pwm_tacho,
+	 	(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CLK_CTRL) & ~AST_PTCR_CLK_CTRL_TYPEM_H_MASK) | (div_high << AST_PTCR_CLK_CTRL_TYPEM_H),
+	 	AST_PTCR_CLK_CTRL);
+	 break;
+	case PWM_TYPE_N:
+	ast_pwm_tacho_write(ast_pwm_tacho,
+	 	(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CLK_CTRL) & ~AST_PTCR_CLK_CTRL_TYPEN_H_MASK) | (div_high << AST_PTCR_CLK_CTRL_TYPEN_H),
+	 	AST_PTCR_CLK_CTRL);
+	 break;
+#ifdef PWM_TYPE_O
+	 case PWM_TYPE_O:
+	 ast_pwm_tacho_write(ast_pwm_tacho,
+		 (ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CLK_EXT_CTRL) & ~AST_PTCR_CLK_CTRL_TYPEO_H_MASK) | (div_high << AST_PTCR_CLK_CTRL_TYPEO_H),
+		 AST_PTCR_CLK_EXT_CTRL);
+	  break;
+#endif			 
+	default:
+	 printk("error channel ast_get_pwm_type %d \n",pwm_type);
+	 break;
+	}
+
+}
+
+static u8 
+ast_get_pwm_clock_division_l(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type)
+{
+	u8 tmp=0;
+
+	switch (pwm_type) {
+	case PWM_TYPE_M:
+		tmp = (ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CLK_CTRL) & AST_PTCR_CLK_CTRL_TYPEM_L_MASK) >> AST_PTCR_CLK_CTRL_TYPEM_L;
+		break;
+	case PWM_TYPE_N:
+		tmp = (ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CLK_CTRL) & AST_PTCR_CLK_CTRL_TYPEN_L_MASK) >> AST_PTCR_CLK_CTRL_TYPEN_L;
+		break;
+#ifdef PWM_TYPE_O		
+	case PWM_TYPE_O:
+		tmp = (ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CLK_EXT_CTRL) & AST_PTCR_CLK_CTRL_TYPEO_L_MASK) >> AST_PTCR_CLK_CTRL_TYPEO_L;
+		break;
+#endif		
+	default:
+		printk("error channel ast_get_pwm_clock_division_l %d \n",pwm_type);
+		break;
+	}
+	return tmp;
+}
+
+static void 
+ast_set_pwm_clock_division_l(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type, u8 div_low)
+{
+	if(div_low> 0xf)
+		return;
+	switch (pwm_type) {
+	case PWM_TYPE_M:
+	 ast_pwm_tacho_write(ast_pwm_tacho,
+	 	(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CLK_CTRL) & ~AST_PTCR_CLK_CTRL_TYPEM_L_MASK) | (div_low << AST_PTCR_CLK_CTRL_TYPEM_L),
+	 	AST_PTCR_CLK_CTRL);
+	 break;
+	case PWM_TYPE_N:
+	ast_pwm_tacho_write(ast_pwm_tacho,
+	 	(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CLK_CTRL) & ~AST_PTCR_CLK_CTRL_TYPEN_L_MASK) | (div_low << AST_PTCR_CLK_CTRL_TYPEN_L),
+	 	AST_PTCR_CLK_CTRL);
+	 break;
+#ifdef PWM_TYPE_O			 
+	case PWM_TYPE_O:
+	ast_pwm_tacho_write(ast_pwm_tacho,
+		(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CLK_EXT_CTRL) & ~AST_PTCR_CLK_CTRL_TYPEO_L_MASK) | (div_low << AST_PTCR_CLK_CTRL_TYPEO_L),
+	 	AST_PTCR_CLK_EXT_CTRL);
+	 break;
+#endif	 
+	default:
+	 printk("error channel ast_get_pwm_type %d \n",pwm_type);
+	 break;
+	}
+}
+
+static u8 
+ast_get_pwm_clock_unit(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type)
+{
+    u8 tmp=0;
+
+    switch (pwm_type) {
+	case PWM_TYPE_M:
+		tmp = (ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CLK_CTRL) & AST_PTCR_CLK_CTRL_TYPEM_UNIT_MASK) >> AST_PTCR_CLK_CTRL_TYPEM_UNIT;
+		break;
+	case PWM_TYPE_N:
+		tmp = (ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CLK_CTRL) & AST_PTCR_CLK_CTRL_TYPEN_UNIT_MASK) >> AST_PTCR_CLK_CTRL_TYPEN_UNIT;
+		break;
+#ifdef PWM_TYPE_O			 		
+	case PWM_TYPE_O:
+		tmp = (ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CLK_EXT_CTRL) & AST_PTCR_CLK_CTRL_TYPEO_UNIT_MASK) >> AST_PTCR_CLK_CTRL_TYPEO_UNIT;
+		break;
+#endif		
+	default:
+		printk("error channel ast_get_pwm_clock_unit %d \n",pwm_type);
+		break;
+    }
+	return tmp;
+}
+
+static void 
+ast_set_pwm_clock_unit(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type, u8 unit)
+{
+	if(unit > 0xff)
+		return;
+	switch (pwm_type) {
+	case PWM_TYPE_M:
+	 ast_pwm_tacho_write(ast_pwm_tacho,
+	 	(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CLK_CTRL) & ~AST_PTCR_CLK_CTRL_TYPEM_UNIT_MASK) | (unit << AST_PTCR_CLK_CTRL_TYPEM_UNIT),
+	 	AST_PTCR_CLK_CTRL);
+	 break;
+	case PWM_TYPE_N:
+	ast_pwm_tacho_write(ast_pwm_tacho,
+	 	(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CLK_CTRL) & ~AST_PTCR_CLK_CTRL_TYPEN_UNIT_MASK) | (unit << AST_PTCR_CLK_CTRL_TYPEN_UNIT),
+	 	AST_PTCR_CLK_CTRL);
+	 break;
+#ifdef PWM_TYPE_O			 	 
+	case PWM_TYPE_O:
+	ast_pwm_tacho_write(ast_pwm_tacho,
+		(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CLK_EXT_CTRL) & ~AST_PTCR_CLK_CTRL_TYPEO_UNIT_MASK) | (unit << AST_PTCR_CLK_CTRL_TYPEO_UNIT),
+	 	AST_PTCR_CLK_EXT_CTRL);
+	 break;
+#endif	 
+	default:
+	 printk("error channel ast_get_pwm_type %d \n",pwm_type);
+	 break;
+	}
+}
+
+static u32
+ast_get_pwm_clock(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_type)
+{
+	u32 unit, div_low, div_high, clk_source;
+	
+	unit = ast_get_pwm_clock_unit(ast_pwm_tacho,pwm_type);		
+
+	div_high = ast_get_pwm_clock_division_h(ast_pwm_tacho,pwm_type);
+	div_high = (0x1<<div_high);
+
+	div_low = ast_get_pwm_clock_division_l(ast_pwm_tacho,pwm_type); 
+	if(div_low == 0)
+		div_low = 1;
+	else
+		div_low = div_low*2;
+	//TODO 266
+
+	if(AST_PTCR_CTRL_CLK_MCLK & ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL))
+			clk_source = ast_pwm_tacho->ast_pwm_data->get_pwm_clock();
+		else
+			clk_source = 24*1000*1000;
+
+//	printk("%d, %d, %d, %d \n",clk_source,div_high,div_low,unit);
+	return (clk_source/(div_high*div_low*(unit+1)));
+}
+
+static u8 
+ast_get_pwm_en(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_ch)
+{
+    u8 tmp=0;
+
+    switch (pwm_ch) {
+	case PWMA:
+		tmp = (ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL) & AST_PTCR_CTRL_PWMA_EN) >> AST_PTCR_CTRL_PWMA;
+		break;
+	case PWMB:
+		tmp = (ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL) & AST_PTCR_CTRL_PWMB_EN) >> AST_PTCR_CTRL_PWMB;
+		break;
+	case PWMC:
+		tmp = (ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL) & AST_PTCR_CTRL_PWMC_EN) >> AST_PTCR_CTRL_PWMC;
+		break;
+	case PWMD:
+		tmp = (ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL) & AST_PTCR_CTRL_PWMD_EN) >> AST_PTCR_CTRL_PWMD;
+		break;
+	case PWME:
+		tmp = (ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL_EXT) & AST_PTCR_CTRL_PWME_EN) >> AST_PTCR_CTRL_PWME;
+		break;
+	case PWMF:
+		tmp = (ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL_EXT) & AST_PTCR_CTRL_PWMF_EN) >> AST_PTCR_CTRL_PWMF;
+		break;
+	case PWMG:
+		tmp = (ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL_EXT) & AST_PTCR_CTRL_PWMG_EN) >> AST_PTCR_CTRL_PWMG;
+		break;
+	case PWMH:
+		tmp = (ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL_EXT) & AST_PTCR_CTRL_PWMH_EN) >> AST_PTCR_CTRL_PWMH;
+		break;
+	default:
+		printk("error channel ast_get_pwm_type %d \n",pwm_ch);
+		break;
+    }
+
+	return tmp;
+
+}
+
+static void 
+ast_set_pwm_en(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_ch, u8 enable)
+{
+    switch (pwm_ch) {
+	case PWMA:
+		if(enable)
+			ast_pwm_tacho_write(ast_pwm_tacho,
+					ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL) | AST_PTCR_CTRL_PWMA_EN, 
+					AST_PTCR_CTRL);
+		else
+			ast_pwm_tacho_write(ast_pwm_tacho,
+					ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL) & ~AST_PTCR_CTRL_PWMA_EN, 
+					AST_PTCR_CTRL);
+			
+		break;
+	case PWMB:
+		if(enable)		
+			ast_pwm_tacho_write(ast_pwm_tacho,	
+					(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL) | AST_PTCR_CTRL_PWMB_EN),
+					AST_PTCR_CTRL);
+		else
+			ast_pwm_tacho_write(ast_pwm_tacho,	
+					(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL) & ~AST_PTCR_CTRL_PWMB_EN),
+					AST_PTCR_CTRL);			
+		break;
+	case PWMC:
+		if(enable)
+			ast_pwm_tacho_write(ast_pwm_tacho,	
+					(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL) | AST_PTCR_CTRL_PWMC_EN),
+					AST_PTCR_CTRL);
+		else
+			ast_pwm_tacho_write(ast_pwm_tacho,	
+					(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL) & ~AST_PTCR_CTRL_PWMC_EN),
+					AST_PTCR_CTRL);
+			
+		break;
+	case PWMD:
+		if(enable)
+			ast_pwm_tacho_write(ast_pwm_tacho,	
+					(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL) | AST_PTCR_CTRL_PWMD_EN),
+					AST_PTCR_CTRL);
+		else
+			ast_pwm_tacho_write(ast_pwm_tacho,	
+					(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL) & ~AST_PTCR_CTRL_PWMD_EN),
+					AST_PTCR_CTRL);
+			
+		break;
+	case PWME:
+		if(enable)
+			ast_pwm_tacho_write(ast_pwm_tacho,
+					(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL_EXT) | AST_PTCR_CTRL_PWME_EN),
+					AST_PTCR_CTRL_EXT);
+		else
+			ast_pwm_tacho_write(ast_pwm_tacho,
+					(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL_EXT) & ~AST_PTCR_CTRL_PWME_EN),
+					AST_PTCR_CTRL_EXT);
+			
+		break;
+	case PWMF:
+		if(enable)
+			ast_pwm_tacho_write(ast_pwm_tacho,
+					(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL_EXT) | AST_PTCR_CTRL_PWMF_EN),
+					AST_PTCR_CTRL_EXT);
+		else
+			ast_pwm_tacho_write(ast_pwm_tacho,
+					(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL_EXT) & ~AST_PTCR_CTRL_PWMF_EN),
+					AST_PTCR_CTRL_EXT);
+			
+		break;
+	case PWMG:
+		if(enable)
+			ast_pwm_tacho_write(ast_pwm_tacho,
+					(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL_EXT) | AST_PTCR_CTRL_PWMG_EN),
+					AST_PTCR_CTRL_EXT);
+		else
+			ast_pwm_tacho_write(ast_pwm_tacho,
+					(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL_EXT) & ~AST_PTCR_CTRL_PWMG_EN),
+					AST_PTCR_CTRL_EXT);
+			
+		break;
+	case PWMH:
+		if(enable)
+			ast_pwm_tacho_write(ast_pwm_tacho,
+					(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL_EXT) | AST_PTCR_CTRL_PWMH_EN),
+					AST_PTCR_CTRL_EXT);
+		else
+			ast_pwm_tacho_write(ast_pwm_tacho,
+					(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL_EXT) & ~AST_PTCR_CTRL_PWMH_EN),
+					AST_PTCR_CTRL_EXT);
+
+		break;
+	default:
+		printk("error channel ast_get_pwm_type %d \n",pwm_ch);
+		break;
+    }
+}
+
+static u8
+ast_get_pwm_type(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_ch)
+{
+    u8 tmp=0;
+
+    switch (pwm_ch) {
+	case PWMA:
+		tmp = AST_PTCR_CTRL_GET_PWMA_TYPE(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL));
+		break;
+	case PWMB:
+		tmp = AST_PTCR_CTRL_GET_PWMB_TYPE(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL));
+		break;
+	case PWMC:
+		tmp = AST_PTCR_CTRL_GET_PWMC_TYPE(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL));
+		break;
+	case PWMD:
+		tmp = AST_PTCR_CTRL_GET_PWMD_TYPE(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL));
+		break;
+	case PWME:
+		tmp = AST_PTCR_CTRL_GET_PWME_TYPE(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL_EXT));
+		break;
+	case PWMF:
+		tmp = AST_PTCR_CTRL_GET_PWMF_TYPE(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL_EXT));
+		break;
+	case PWMG:
+		tmp = AST_PTCR_CTRL_GET_PWMG_TYPE(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL_EXT));
+		break;
+	case PWMH:
+		tmp = AST_PTCR_CTRL_GET_PWMH_TYPE(ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL_EXT));
+		break;
+	default:
+		printk("error channel ast_get_pwm_type %d \n",pwm_ch);
+		break;
+    }
+
+	return tmp;
+}
+
+static void
+ast_set_pwm_type(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_ch, u8 type)
+{
+    u32 tmp1,tmp2;
+
+	if(type > 0x2)
+		return;
+
+	tmp1 = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL);
+	tmp2 = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_CTRL_EXT);
+
+    switch (pwm_ch) {
+	case PWMA:
+		tmp1 &= ~AST_PTCR_CTRL_SET_PWMA_TYPE_MASK;
+		tmp1 |= AST_PTCR_CTRL_SET_PWMA_TYPE(type);
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp1, AST_PTCR_CTRL);
+		break;
+	case PWMB:
+		tmp1 &= ~AST_PTCR_CTRL_SET_PWMB_TYPE_MASK;
+		tmp1 |= AST_PTCR_CTRL_SET_PWMB_TYPE(type);
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp1, AST_PTCR_CTRL);
+		break;
+	case PWMC:
+		tmp1 &= ~AST_PTCR_CTRL_SET_PWMC_TYPE_MASK;
+		tmp1 |= AST_PTCR_CTRL_SET_PWMC_TYPE(type);
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp1, AST_PTCR_CTRL);
+		break;
+	case PWMD:
+		tmp1 &= ~AST_PTCR_CTRL_SET_PWMD_TYPE_MASK;
+		tmp1 |= AST_PTCR_CTRL_SET_PWMD_TYPE(type);
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp1, AST_PTCR_CTRL);
+		break;
+	case PWME:
+		tmp2 &= ~AST_PTCR_CTRL_SET_PWME_TYPE_MASK;
+		tmp2 |= AST_PTCR_CTRL_SET_PWME_TYPE(type);
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp2, AST_PTCR_CTRL_EXT);
+		break;
+	case PWMF:
+		tmp2 &= ~AST_PTCR_CTRL_SET_PWMF_TYPE_MASK;
+		tmp2 |= AST_PTCR_CTRL_SET_PWMF_TYPE(type);
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp2, AST_PTCR_CTRL_EXT);
+		break;
+	case PWMG:
+		tmp2 &= ~AST_PTCR_CTRL_SET_PWMG_TYPE_MASK;
+		tmp2 |= AST_PTCR_CTRL_SET_PWMG_TYPE(type);
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp2, AST_PTCR_CTRL_EXT);
+		break;
+	case PWMH:
+		tmp2 &= ~AST_PTCR_CTRL_SET_PWMH_TYPE_MASK;
+		tmp2 |= AST_PTCR_CTRL_SET_PWMH_TYPE(type);
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp2, AST_PTCR_CTRL_EXT);
+		break;
+	default:
+		printk("error channel %d \n",pwm_ch);
+		break;
+    }
+}
+
+// PWM DUTY 
+static u8
+ast_get_pwm_duty_rising(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_ch)
+{
+	u32 tmp=0;
+    switch (pwm_ch) {
+	case PWMA:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY0_CTRL);
+		tmp &= DUTY_CTRL0_PWMA_RISE_POINT_MASK;
+		break;
+	case PWMB:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY0_CTRL);
+		tmp &= DUTY_CTRL0_PWMB_RISE_POINT_MASK;
+		tmp = (tmp >> DUTY_CTRL0_PWMB_RISE_POINT);
+		break;
+	case PWMC:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY1_CTRL);
+		tmp &= DUTY_CTRL1_PWMC_RISE_POINT_MASK;
+		break;
+	case PWMD:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY1_CTRL);
+		tmp &= DUTY_CTRL1_PWMD_RISE_POINT_MASK;
+		tmp = (tmp >> DUTY_CTRL1_PWMD_RISE_POINT);
+		break;
+	case PWME:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY2_CTRL);
+		tmp &= DUTY_CTRL2_PWME_RISE_POINT_MASK;
+		break;
+	case PWMF:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY2_CTRL);
+		tmp &= DUTY_CTRL2_PWMF_RISE_POINT_MASK;
+		tmp = (tmp >> DUTY_CTRL2_PWMF_RISE_POINT);
+		break;
+	case PWMG:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY3_CTRL);
+		tmp &= DUTY_CTRL3_PWMG_RISE_POINT_MASK;
+		break;
+	case PWMH:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY3_CTRL);
+		tmp &= DUTY_CTRL3_PWMH_RISE_POINT_MASK;
+		tmp = (tmp >> DUTY_CTRL3_PWMH_RISE_POINT);
+		break;			
+	default:
+	    printk("error pwm channel %d with duty R \n",pwm_ch);
+		break;
+    }
+	
+	return tmp;
+}
+
+static void
+ast_set_pwm_duty_rising(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_ch, u8 rising)
+{
+	u32 tmp=0;
+	u32 pwm_type = ast_get_pwm_type(ast_pwm_tacho,pwm_ch);
+	
+	if((rising > 0xff) || (rising > ast_get_pwm_clock_unit(ast_pwm_tacho,pwm_type)))
+		return;
+	
+    switch (pwm_ch) {
+	case PWMA:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY0_CTRL);
+		tmp &= ~DUTY_CTRL0_PWMA_RISE_POINT_MASK;
+		tmp |= rising;
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_DUTY0_CTRL);
+		break;
+	case PWMB:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY0_CTRL);
+		tmp &= ~DUTY_CTRL0_PWMB_RISE_POINT_MASK;
+		tmp |= (rising << DUTY_CTRL0_PWMB_RISE_POINT);
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_DUTY0_CTRL);
+		break;
+	case PWMC:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY1_CTRL);
+		tmp &= ~DUTY_CTRL1_PWMC_RISE_POINT_MASK;
+		tmp |= rising;
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_DUTY1_CTRL);
+		break;
+	case PWMD:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY1_CTRL);
+		tmp &= ~DUTY_CTRL1_PWMD_RISE_POINT_MASK;
+		tmp |= (rising << DUTY_CTRL1_PWMD_RISE_POINT);
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_DUTY1_CTRL);
+		break;
+	case PWME:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY2_CTRL);
+		tmp &= ~DUTY_CTRL2_PWME_RISE_POINT_MASK;
+		tmp |= rising;
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_DUTY2_CTRL);
+		break;
+	case PWMF:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY2_CTRL);
+		tmp &= ~DUTY_CTRL2_PWMF_RISE_POINT_MASK;
+		tmp |= (rising << DUTY_CTRL2_PWMF_RISE_POINT);
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_DUTY2_CTRL);
+		break;
+	case PWMG:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY3_CTRL);
+		tmp &= ~DUTY_CTRL3_PWMG_RISE_POINT_MASK;
+		tmp |= rising;
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_DUTY3_CTRL);
+		break;
+	case PWMH:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY3_CTRL);
+		tmp &= ~DUTY_CTRL3_PWMH_RISE_POINT_MASK;
+		tmp |= (rising << DUTY_CTRL3_PWMH_RISE_POINT);
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_DUTY3_CTRL);
+		break;			
+
+	default:
+	    printk("error pwm channel %d with duty \n",pwm_ch);
+		break;
+    }
+}
+
+static u8
+ast_get_pwm_duty_falling(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_ch)
+{
+	u32 tmp=0;
+    switch (pwm_ch) {
+	case PWMA:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY0_CTRL);
+		tmp &= DUTY_CTRL0_PWMA_FALL_POINT_MASK;
+		tmp = (tmp >> DUTY_CTRL0_PWMA_FALL_POINT);
+		break;
+	case PWMB:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY0_CTRL);
+		tmp &= DUTY_CTRL0_PWMB_FALL_POINT_MASK;
+		tmp = (tmp >> DUTY_CTRL0_PWMB_FALL_POINT);
+		break;
+	case PWMC:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY1_CTRL);
+		tmp &= DUTY_CTRL1_PWMC_FALL_POINT_MASK;
+		tmp = (tmp >> DUTY_CTRL1_PWMC_FALL_POINT);
+		break;
+	case PWMD:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY1_CTRL);
+		tmp &= DUTY_CTRL1_PWMD_FALL_POINT_MASK;
+		tmp = (tmp >> DUTY_CTRL1_PWMD_FALL_POINT);
+		break;
+	case PWME:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY2_CTRL);
+		tmp &= DUTY_CTRL2_PWME_FALL_POINT_MASK;
+		tmp = (tmp >> DUTY_CTRL2_PWME_FALL_POINT);
+		break;
+	case PWMF:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY2_CTRL);
+		tmp &= DUTY_CTRL2_PWMF_FALL_POINT_MASK;
+		tmp = (tmp >> DUTY_CTRL2_PWMF_FALL_POINT);
+		break;
+	case PWMG:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY3_CTRL);
+		tmp &= DUTY_CTRL3_PWMG_FALL_POINT_MASK;
+		tmp = (tmp >> DUTY_CTRL3_PWMG_FALL_POINT);
+		break;
+	case PWMH:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY3_CTRL);
+		tmp &= DUTY_CTRL3_PWMH_FALL_POINT_MASK;
+		tmp = (tmp >> DUTY_CTRL3_PWMH_FALL_POINT);
+		break;			
+
+	default:
+	    printk("error pwm channel %d with duty F \n",pwm_ch);
+		break;
+    }
+	
+	return tmp;
+}
+
+static void
+ast_set_pwm_duty_falling(struct ast_pwm_tacho_data *ast_pwm_tacho, u8 pwm_ch, u8 falling)
+{
+	u32 tmp =0;
+	u32 pwm_type = ast_get_pwm_type(ast_pwm_tacho,pwm_ch);
+	
+	if((falling > 0xff) || (falling > ast_get_pwm_clock_unit(ast_pwm_tacho,pwm_type)))
+		return;
+	
+    switch (pwm_ch) {
+	case PWMA:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY0_CTRL);
+		tmp &= ~DUTY_CTRL0_PWMA_FALL_POINT_MASK;
+		tmp |= (falling << DUTY_CTRL0_PWMA_FALL_POINT);
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_DUTY0_CTRL);
+		break;
+	case PWMB:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY0_CTRL);
+		tmp &= ~DUTY_CTRL0_PWMB_FALL_POINT_MASK;
+		tmp |= (falling << DUTY_CTRL0_PWMB_FALL_POINT);
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_DUTY0_CTRL);
+		break;
+	case PWMC:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY1_CTRL);
+		tmp &= ~DUTY_CTRL1_PWMC_FALL_POINT_MASK;
+		tmp |= (falling << DUTY_CTRL1_PWMC_FALL_POINT);
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_DUTY1_CTRL);
+		break;
+	case PWMD:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY1_CTRL);
+		tmp &= ~DUTY_CTRL1_PWMD_FALL_POINT_MASK;
+		tmp |= (falling << DUTY_CTRL1_PWMD_FALL_POINT);
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_DUTY1_CTRL);
+		break;
+	case PWME:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY2_CTRL);
+		tmp &= ~DUTY_CTRL2_PWME_FALL_POINT_MASK;
+		tmp |= (falling << DUTY_CTRL2_PWME_FALL_POINT);
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_DUTY2_CTRL);
+		break;
+	case PWMF:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY2_CTRL);
+		tmp &= ~DUTY_CTRL2_PWMF_FALL_POINT_MASK;
+		tmp |= (falling << DUTY_CTRL2_PWMF_FALL_POINT);
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_DUTY2_CTRL);
+		break;
+	case PWMG:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY3_CTRL);
+		tmp &= ~DUTY_CTRL3_PWMG_FALL_POINT_MASK;
+		tmp |= (falling << DUTY_CTRL3_PWMG_FALL_POINT);
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_DUTY3_CTRL);
+		break;
+	case PWMH:
+		tmp = ast_pwm_tacho_read(ast_pwm_tacho, AST_PTCR_DUTY3_CTRL);
+		tmp &= ~DUTY_CTRL3_PWMH_FALL_POINT_MASK;
+		tmp |= (falling << DUTY_CTRL3_PWMH_FALL_POINT);
+		ast_pwm_tacho_write(ast_pwm_tacho, tmp, AST_PTCR_DUTY3_CTRL);
+		break;			
+
+	default:
+	    printk("error pwm channel %d with duty \n",pwm_ch);
+		break;
+    }
+
+}
+
+/* NAME sysfs */
+static ssize_t 
+show_name(struct device *dev, struct device_attribute *devattr,
+                         char *buf)
+{
+	return sprintf(buf, "ast_pwm\n");
+}
+static SENSOR_DEVICE_ATTR_2(name, S_IRUGO, show_name, NULL, 0, 0);
+static struct attribute *name_attributes[] = {
+	&sensor_dev_attr_name.dev_attr.attr,
+	NULL
+};
+static const struct attribute_group name_attribute_groups = {
+	.attrs = name_attributes,
+};
+
+/*PWM M/N/O Type sysfs*/
+/* 
+ * Macro defining SENSOR_DEVICE_ATTR for a pwm sysfs entries.
+ *  0 - show/store unit
+ *  1 - show/store division_l
+ *  2 - show/store division_h 
+ */
+
+static ssize_t 
+ast_show_pwm_type_clock(struct device *dev, struct device_attribute *attr, char *sysfsbuf)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+						to_sensor_dev_attr_2(attr);
+
+
+	//sensor_attr->index : M/N/O#
+	//sensor_attr->nr : attr#
+	switch(sensor_attr->nr) 
+	{
+		case 0: //unit : 0~256
+			return sprintf(sysfsbuf, "%d (0~255)\n", ast_get_pwm_clock_unit(ast_pwm_tacho,sensor_attr->index));
+			break;
+		case 1: //division_l
+			return sprintf(sysfsbuf, "%d (0~15) \n", ast_get_pwm_clock_division_l(ast_pwm_tacho,sensor_attr->index));
+			break;
+		case 2: //division_h
+			return sprintf(sysfsbuf, "%d (0~15) \n", ast_get_pwm_clock_division_h(ast_pwm_tacho,sensor_attr->index));
+			
+			break;			
+		case 3: //expect clock
+
+			return sprintf(sysfsbuf, "%d  \n", ast_get_pwm_clock(ast_pwm_tacho,sensor_attr->index));
+			
+			break;			
+
+		default:
+			return -EINVAL;
+			break;
+	}
+
+	return sprintf(sysfsbuf, "%d : %d\n", sensor_attr->nr,sensor_attr->index);
+
+
+}
+
+static ssize_t 
+ast_store_pwm_type_clock(struct device *dev, struct device_attribute *attr, const char *sysfsbuf, size_t count)
+{
+	u32 input_val;
+	struct sensor_device_attribute_2 *sensor_attr =
+						to_sensor_dev_attr_2(attr);
+
+	input_val = simple_strtoul(sysfsbuf, NULL, 10);
+
+	switch(sensor_attr->nr) 
+	{
+		case 0: //unit : 0~256
+			ast_set_pwm_clock_unit(ast_pwm_tacho, sensor_attr->index, input_val);
+			break;
+		case 1: //division_l
+			ast_set_pwm_clock_division_l(ast_pwm_tacho, sensor_attr->index, input_val);
+			break;
+		case 2: //division_h
+			ast_set_pwm_clock_division_h(ast_pwm_tacho, sensor_attr->index, input_val);
+			break;			
+		default:
+			return -EINVAL;
+			break;
+	}
+
+	return count;
+}
+
+/* attr
+ *  0 - show/store enable
+ *  1 - show/store type
+ *  2 - show/store falling
+ *  3 - show/store rising */
+static ssize_t 
+ast_show_pwm_speed(struct device *dev, struct device_attribute *attr, char *sysfsbuf)
+{
+	struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
+
+	//sensor_attr->index : pwm_ch#
+	//sensor_attr->nr : attr#
+	switch(sensor_attr->nr) 
+	{
+		case 0: //enable, disable
+			return sprintf(sysfsbuf, "%d : %s\n", ast_get_pwm_en(ast_pwm_tacho,sensor_attr->index),ast_get_pwm_en(ast_pwm_tacho,sensor_attr->index) ? "Enable":"Disable");
+			break;
+		case 1: //pwm type M/N/O
+			return sprintf(sysfsbuf, "%d (0:M/1:N/2:O)\n",ast_get_pwm_type(ast_pwm_tacho, sensor_attr->index));
+			break;
+		case 2: //rising
+			return sprintf(sysfsbuf, "%x : unit limit (0~%d)\n",ast_get_pwm_duty_rising(ast_pwm_tacho, sensor_attr->index),
+						ast_get_pwm_clock_unit(ast_pwm_tacho, ast_get_pwm_type(ast_pwm_tacho, sensor_attr->index)));
+			break;						
+		case 3: //falling
+			return sprintf(sysfsbuf, "%x : unit limit (0~%d)\n",ast_get_pwm_duty_falling(ast_pwm_tacho, sensor_attr->index),
+						ast_get_pwm_clock_unit(ast_pwm_tacho, ast_get_pwm_type(ast_pwm_tacho, sensor_attr->index)));			
+			break;			
+		default:
+			return -EINVAL;
+			break;
+	}
+}
+
+static ssize_t 
+ast_store_pwm_speed(struct device *dev, struct device_attribute *attr, const char *sysfsbuf, size_t count)
+{
+	u32 input_val;
+	struct sensor_device_attribute_2 *sensor_attr =
+						to_sensor_dev_attr_2(attr);
+
+	input_val = simple_strtoul(sysfsbuf, NULL, 10);
+
+	//sensor_attr->index : pwm_ch#
+	//sensor_attr->nr : attr#
+	switch(sensor_attr->nr) 
+	{
+		case 0: //enable, disable
+			ast_set_pwm_en(ast_pwm_tacho, sensor_attr->index, input_val);
+			break;
+		case 1: //pwm type M/N/O
+			ast_set_pwm_type(ast_pwm_tacho, sensor_attr->index, input_val);
+			break;
+		case 2: //rising
+			ast_set_pwm_duty_rising(ast_pwm_tacho, sensor_attr->index, input_val);
+			break;			
+		case 3: //falling
+			ast_set_pwm_duty_falling(ast_pwm_tacho, sensor_attr->index, input_val);
+			break;			
+		default:
+			return -EINVAL;
+			break;
+	}
+
+	return count;
+}
+
+/* Fan Type  */
+/* Fan M/N/O Type sysfs 
+ * Macro defining SENSOR_DEVICE_ATTR for a pwm sysfs entries.
+ *  0 - show/store enable
+ *  1 - show/store mode
+ *  2 - show/store unit
+ *  3 - show/store division
+ *  4 - show/store limit
+ */
+
+static ssize_t 
+ast_show_tacho_type(struct device *dev, struct device_attribute *attr, char *sysfsbuf)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+						to_sensor_dev_attr_2(attr);
+
+	//sensor_attr->index : M/N/O
+	//sensor_attr->nr : attr#
+	switch(sensor_attr->nr) 
+	{
+		case 0: //enable, disable
+			return sprintf(sysfsbuf, "%d : %s\n", ast_get_tacho_type_en(ast_pwm_tacho,sensor_attr->index),ast_get_tacho_type_en(ast_pwm_tacho,sensor_attr->index) ? "Enable":"Disable");
+			break;
+		case 1: //fan tacho mode
+			if(ast_get_tacho_type_mode(ast_pwm_tacho, sensor_attr->index) == FALL_EDGE)
+				return sprintf(sysfsbuf, "0: falling\n");
+			else if(ast_get_tacho_type_mode(ast_pwm_tacho, sensor_attr->index) == RISE_EDGE)
+				return sprintf(sysfsbuf, "1: rising\n");
+			else if (ast_get_tacho_type_mode(ast_pwm_tacho, sensor_attr->index) == BOTH_EDGE) 
+				return sprintf(sysfsbuf, "2: both\n");
+			else 
+				return sprintf(sysfsbuf, "3: unknown\n");
+			break;
+		case 2: //unit
+			return sprintf(sysfsbuf, "%d (0~65535)\n",ast_get_tacho_type_unit(ast_pwm_tacho, sensor_attr->index));
+			
+			break;			
+		case 3: //division
+			return sprintf(sysfsbuf, "%d (0~7) \n",ast_get_tacho_type_division(ast_pwm_tacho, sensor_attr->index));
+			break;			
+		case 4: //limit
+			return sprintf(sysfsbuf, "%d (0~1048575)\n",ast_get_tacho_type_limit(ast_pwm_tacho, sensor_attr->index));
+			break;			
+		case 5: //measure period
+			return sprintf(sysfsbuf, "%d \n",ast_get_tacho_measure_period(ast_pwm_tacho, sensor_attr->index));
+			break;			
+		default:
+			return -EINVAL;
+			break;
+	}
+}
+
+static ssize_t 
+ast_store_tacho_type(struct device *dev, struct device_attribute *attr, const char *sysfsbuf, size_t count)
+{
+	u32 input_val;
+	struct sensor_device_attribute_2 *sensor_attr =
+						to_sensor_dev_attr_2(attr);
+
+	input_val = simple_strtoul(sysfsbuf, NULL, 10);
+
+	//sensor_attr->index : pwm_ch#
+	//sensor_attr->nr : attr#
+	switch(sensor_attr->nr) 
+	{
+		case 0: //enable, disable
+			ast_set_tacho_type_en(ast_pwm_tacho,sensor_attr->index, input_val);
+			break;
+		case 1: //fan tacho mode
+			ast_set_tacho_type_mode(ast_pwm_tacho, sensor_attr->index, input_val);
+			break;
+		case 2: //unit
+			ast_set_tacho_type_unit(ast_pwm_tacho, sensor_attr->index, input_val);
+			break;			
+		case 3: //division
+			ast_set_tacho_type_division(ast_pwm_tacho, sensor_attr->index, input_val);
+			break;			
+		case 4: //limit
+			ast_set_tacho_type_limit(ast_pwm_tacho, sensor_attr->index, input_val);
+			break;			
+		default:
+			return -EINVAL;
+			break;
+	}
+	return count;
+
+}
+
+/* fan detect */
+/* FAN sysfs
+ * Macro defining SENSOR_DEVICE_ATTR for a tacho sysfs entries.
+ *  - show/store enable
+ *  - show/store source
+ *  - show/store rpm
+ *  - show/store alarm
+ *  - show/store alarm_en 
+*/
+static ssize_t 
+ast_show_tacho_speed(struct device *dev, struct device_attribute *attr, char *sysfsbuf)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+						to_sensor_dev_attr_2(attr);
+
+	//sensor_attr->index : pwm_ch#
+	//sensor_attr->nr : attr#
+	switch(sensor_attr->nr) 
+	{
+		case 0: //enable, disable
+			return sprintf(sysfsbuf, "%d : %s\n", ast_get_tacho_en(ast_pwm_tacho,sensor_attr->index),ast_get_tacho_en(ast_pwm_tacho,sensor_attr->index) ? "Enable":"Disable");
+			break;
+		case 1: //tacho source PWMA~H - 0~7
+			return sprintf(sysfsbuf, "PWM%d (0~7)\n", ast_get_tacho_source(ast_pwm_tacho,sensor_attr->index));
+			break;
+		case 2: //rpm
+			return sprintf(sysfsbuf, "%d \n", ast_get_tacho_rpm(ast_pwm_tacho,sensor_attr->index));
+			break;			
+		case 3: //alarm
+			return sprintf(sysfsbuf, "%d \n", ast_get_tacho_alarm(ast_pwm_tacho,sensor_attr->index));
+			break;			
+		case 4: //alarm_en
+			return sprintf(sysfsbuf, "%d : %s\n", 
+				ast_get_tacho_alarm_en(ast_pwm_tacho,sensor_attr->index),
+				ast_get_tacho_alarm_en(ast_pwm_tacho,sensor_attr->index) ? "Enable":"Disable");
+			break;			
+		default:
+			return -EINVAL;
+			break;
+	}
+
+}
+
+static ssize_t 
+ast_store_tacho_speed(struct device *dev, struct device_attribute *attr, const char *sysfsbuf, size_t count)
+{
+	u32 input_val;
+	struct sensor_device_attribute_2 *sensor_attr =
+						to_sensor_dev_attr_2(attr);
+
+	input_val = simple_strtoul(sysfsbuf, NULL, 10);
+
+
+	//sensor_attr->index : tacho_ch#
+	//sensor_attr->nr : attr#
+	switch(sensor_attr->nr) 
+	{
+		case 0: //enable, disable
+			ast_set_tacho_en(ast_pwm_tacho,sensor_attr->index,input_val);
+			break;
+		case 1: //tacho source PWMA~H - 0~7
+			ast_set_tacho_source(ast_pwm_tacho,sensor_attr->index,input_val);
+			break;
+		case 2: //rpm
+			return -EINVAL;
+			break;			
+		case 3: //alarm
+			return -EINVAL;
+			break;			
+		case 4: //alarm_en
+			ast_set_tacho_alarm_en(ast_pwm_tacho,sensor_attr->index,input_val);
+			break;			
+		default:
+			return -EINVAL;
+			break;
+	}
+	return count;
+}
+
+/*
+ * sysfs attributes
+ */
+/* CLK sysfs*/
+static SENSOR_DEVICE_ATTR_2(clk_en, S_IRUGO | S_IWUSR, ast_show_clk, ast_store_clk, 0, 0);
+static SENSOR_DEVICE_ATTR_2(clk_source, S_IRUGO | S_IWUSR, ast_show_clk, ast_store_clk, 1, 0); 
+
+
+static struct attribute *clk_attributes[] = { 
+	&sensor_dev_attr_clk_source.dev_attr.attr, 
+	&sensor_dev_attr_clk_en.dev_attr.attr, 
+	NULL 
+};
+
+static const struct attribute_group clk_attribute_groups = {
+	.attrs = clk_attributes,
+};
+
+/*PWM M/N/O Type sysfs*/
+/* 
+ * Macro defining SENSOR_DEVICE_ATTR for a pwm sysfs entries.
+ *  0 - show/store unit
+ *  1 - show/store division_l
+ *  2 - show/store division_h 
+ */
+
+#define sysfs_pwm_type(type,index) \
+static SENSOR_DEVICE_ATTR_2(pwm_type_##type##_unit, S_IRUGO | S_IWUSR, \
+	ast_show_pwm_type_clock, ast_store_pwm_type_clock, 0, index); \
+\
+static SENSOR_DEVICE_ATTR_2(pwm_type_##type##_division_l, S_IRUGO | S_IWUSR, \
+	ast_show_pwm_type_clock, ast_store_pwm_type_clock, 1, index); \
+\
+static SENSOR_DEVICE_ATTR_2(pwm_type_##type##_division_h, S_IRUGO | S_IWUSR, \
+	ast_show_pwm_type_clock, ast_store_pwm_type_clock, 2, index); \
+\
+static SENSOR_DEVICE_ATTR_2(pwm_type_##type##_clk, S_IRUGO, \
+	ast_show_pwm_type_clock, NULL, 3, index); \
+\
+static struct attribute *pwm_type_##type##_attributes[] = { \
+	&sensor_dev_attr_pwm_type_##type##_unit.dev_attr.attr, \
+	&sensor_dev_attr_pwm_type_##type##_division_l.dev_attr.attr, \
+	&sensor_dev_attr_pwm_type_##type##_division_h.dev_attr.attr, \
+	&sensor_dev_attr_pwm_type_##type##_clk.dev_attr.attr, \
+	NULL \
+};
+
+/*
+ * Create the needed functions for each pwm using the macro defined above
+ * (4 pwms are supported)
+ */
+sysfs_pwm_type(m,0);
+sysfs_pwm_type(n,1);
+#ifdef PWM_TYPE_O
+sysfs_pwm_type(o,2);
+#endif
+
+static const struct attribute_group pwm_type_attribute_groups[] = {
+	{ .attrs = pwm_type_m_attributes },
+	{ .attrs = pwm_type_n_attributes },
+#ifdef PWM_TYPE_O	
+	{ .attrs = pwm_type_o_attributes },
+#endif
+};
+
+/* PWM sysfs
+ * Macro defining SENSOR_DEVICE_ATTR for a pwm sysfs entries.
+ *  0 - show/store enable
+ *  1 - show/store type
+ *  2 - show/store rising
+ *  3 - show/store falling
+ */
+
+#define sysfs_pwm_speeds_num(index) \
+static SENSOR_DEVICE_ATTR_2(pwm##index##_en, S_IRUGO | S_IWUSR, \
+	ast_show_pwm_speed, ast_store_pwm_speed, 0, index); \
+\
+static SENSOR_DEVICE_ATTR_2(pwm##index##_type, S_IRUGO | S_IWUSR, \
+	ast_show_pwm_speed, ast_store_pwm_speed, 1, index); \
+\
+static SENSOR_DEVICE_ATTR_2(pwm##index##_rising, S_IRUGO | S_IWUSR, \
+	ast_show_pwm_speed, ast_store_pwm_speed, 2, index); \
+\
+static SENSOR_DEVICE_ATTR_2(pwm##index##_falling, S_IRUGO | S_IWUSR, \
+	ast_show_pwm_speed, ast_store_pwm_speed, 3, index); \
+\
+static struct attribute *pwm##index##_attributes[] = { \
+	&sensor_dev_attr_pwm##index##_en.dev_attr.attr, \
+	&sensor_dev_attr_pwm##index##_type.dev_attr.attr, \
+	&sensor_dev_attr_pwm##index##_rising.dev_attr.attr, \
+	&sensor_dev_attr_pwm##index##_falling.dev_attr.attr, \
+	NULL \
+};
+
+/*
+ * Create the needed functions for each pwm using the macro defined above
+ * (4 pwms are supported)
+ */
+sysfs_pwm_speeds_num(0);
+sysfs_pwm_speeds_num(1);
+sysfs_pwm_speeds_num(2);
+sysfs_pwm_speeds_num(3);
+sysfs_pwm_speeds_num(4);
+sysfs_pwm_speeds_num(5);
+sysfs_pwm_speeds_num(6);
+sysfs_pwm_speeds_num(7);
+
+static const struct attribute_group pwm_attribute_groups[] = {
+	{ .attrs = pwm0_attributes },
+	{ .attrs = pwm1_attributes },
+	{ .attrs = pwm2_attributes },
+	{ .attrs = pwm3_attributes },
+	{ .attrs = pwm4_attributes },
+	{ .attrs = pwm5_attributes },
+	{ .attrs = pwm6_attributes },
+	{ .attrs = pwm7_attributes },
+};
+
+/* Fan M/N/O Type sysfs 
+ * Macro defining SENSOR_DEVICE_ATTR for a pwm sysfs entries.
+ *  0 - show/store enable
+ *  1 - show/store mode
+ *  2 - show/store unit
+ *  3 - show/store division
+ *  4 - show/store limit
+ */
+
+#define sysfs_tacho_type(type,index) \
+static SENSOR_DEVICE_ATTR_2(tacho_type_##type##_en, S_IRUGO | S_IWUSR, \
+	ast_show_tacho_type, ast_store_tacho_type, 0, index); \
+\
+static SENSOR_DEVICE_ATTR_2(tacho_type_##type##_mode, S_IRUGO | S_IWUSR, \
+	ast_show_tacho_type, ast_store_tacho_type, 1, index); \
+\
+static SENSOR_DEVICE_ATTR_2(tacho_type_##type##_unit, S_IRUGO | S_IWUSR, \
+	ast_show_tacho_type, ast_store_tacho_type, 2, index); \
+\
+static SENSOR_DEVICE_ATTR_2(tacho_type_##type##_division, S_IRUGO | S_IWUSR, \
+	ast_show_tacho_type, ast_store_tacho_type, 3, index); \
+\
+static SENSOR_DEVICE_ATTR_2(tacho_type_##type##_limit, S_IRUGO | S_IWUSR, \
+	ast_show_tacho_type, ast_store_tacho_type, 4, index); \
+\
+static SENSOR_DEVICE_ATTR_2(tacho_type_##type##_measure_period, S_IRUGO | S_IWUSR, \
+	ast_show_tacho_type, ast_store_tacho_type, 5, index); \
+\
+static struct attribute *tacho_type_##type##_attributes[] = { \
+	&sensor_dev_attr_tacho_type_##type##_en.dev_attr.attr, \
+	&sensor_dev_attr_tacho_type_##type##_mode.dev_attr.attr, \
+	&sensor_dev_attr_tacho_type_##type##_unit.dev_attr.attr, \
+	&sensor_dev_attr_tacho_type_##type##_division.dev_attr.attr, \
+	&sensor_dev_attr_tacho_type_##type##_limit.dev_attr.attr, \
+	&sensor_dev_attr_tacho_type_##type##_measure_period.dev_attr.attr, \
+	NULL \
+};
+
+/*
+ * Create the needed functions for each pwm using the macro defined above
+ * (4 pwms are supported)
+ */
+sysfs_tacho_type(m,0);
+sysfs_tacho_type(n,1);
+#ifdef PWM_TYPE_O
+sysfs_tacho_type(o,2);
+#endif
+
+static const struct attribute_group tacho_type_attribute_groups[] = {
+	{ .attrs = tacho_type_m_attributes },
+	{ .attrs = tacho_type_n_attributes },
+#ifdef PWM_TYPE_O	
+	{ .attrs = tacho_type_o_attributes },
+#endif
+};
+
+/* FAN sysfs
+ * Macro defining SENSOR_DEVICE_ATTR for a tacho sysfs entries.
+ *  - show/store enable
+ *  - show/store source
+ *  - show/store rpm
+ *  - show/store alarm
+ *  - show/store alarm_en 
+ */
+#define sysfs_tacho_speeds_num(index) \
+static SENSOR_DEVICE_ATTR_2(tacho##index##_en, S_IRUGO | S_IWUSR, \
+	ast_show_tacho_speed, ast_store_tacho_speed, 0, index); \
+\
+static SENSOR_DEVICE_ATTR_2(tacho##index##_source, S_IRUGO | S_IWUSR, \
+	ast_show_tacho_speed, ast_store_tacho_speed, 1, index); \
+\
+static SENSOR_DEVICE_ATTR_2(tacho##index##_rpm, S_IRUGO, \
+	ast_show_tacho_speed, NULL, 2, index); \
+\
+static SENSOR_DEVICE_ATTR_2(tacho##index##_alarm, S_IRUGO, \
+	ast_show_tacho_speed, ast_store_tacho_speed, 3, index); \
+\
+static SENSOR_DEVICE_ATTR_2(tacho##index##_alarm_en, S_IRUGO | S_IWUSR, \
+	ast_show_tacho_speed, ast_store_tacho_speed, 4, index); \
+\
+static struct attribute *tacho##index##_attributes[] = { \
+	&sensor_dev_attr_tacho##index##_en.dev_attr.attr, \
+	&sensor_dev_attr_tacho##index##_source.dev_attr.attr, \
+	&sensor_dev_attr_tacho##index##_rpm.dev_attr.attr, \
+	&sensor_dev_attr_tacho##index##_alarm.dev_attr.attr, \
+	&sensor_dev_attr_tacho##index##_alarm_en.dev_attr.attr, \
+	NULL \
+};
+
+/*
+ * Create the needed functions for each tacho using the macro defined above
+ * (4 tachos are supported)
+ */
+sysfs_tacho_speeds_num(0);
+sysfs_tacho_speeds_num(1);
+sysfs_tacho_speeds_num(2);
+sysfs_tacho_speeds_num(3);
+sysfs_tacho_speeds_num(4);
+sysfs_tacho_speeds_num(5);
+sysfs_tacho_speeds_num(6);
+sysfs_tacho_speeds_num(7);
+sysfs_tacho_speeds_num(8);
+sysfs_tacho_speeds_num(9);
+sysfs_tacho_speeds_num(10);
+sysfs_tacho_speeds_num(11);
+sysfs_tacho_speeds_num(12);
+sysfs_tacho_speeds_num(13);
+sysfs_tacho_speeds_num(14);
+sysfs_tacho_speeds_num(15);
+
+static const struct attribute_group tacho_attribute_groups[] = {
+	{ .attrs = tacho0_attributes },
+	{ .attrs = tacho1_attributes },
+	{ .attrs = tacho2_attributes },
+	{ .attrs = tacho3_attributes },
+	{ .attrs = tacho4_attributes },
+	{ .attrs = tacho5_attributes },
+	{ .attrs = tacho6_attributes },
+	{ .attrs = tacho7_attributes },
+	{ .attrs = tacho8_attributes },
+	{ .attrs = tacho9_attributes },
+	{ .attrs = tacho10_attributes },
+	{ .attrs = tacho11_attributes },
+	{ .attrs = tacho12_attributes },
+	{ .attrs = tacho13_attributes },
+	{ .attrs = tacho14_attributes },
+	{ .attrs = tacho15_attributes },
+};
+
+/* Create fan sysfs for lm-sensors, index starts from 1 */
+#define sysfs_fan_speeds_num(index) \
+static SENSOR_DEVICE_ATTR_2(fan##index##_input, S_IRUGO,	\
+	ast_show_tacho_speed, NULL, 2, index - 1); \
+static struct attribute *fan##index##_attributes[] = { \
+	&sensor_dev_attr_fan##index##_input.dev_attr.attr,  \
+	NULL \
+};
+
+sysfs_fan_speeds_num(1);
+sysfs_fan_speeds_num(2);
+sysfs_fan_speeds_num(3);
+sysfs_fan_speeds_num(4);
+sysfs_fan_speeds_num(5);
+sysfs_fan_speeds_num(6);
+sysfs_fan_speeds_num(7);
+sysfs_fan_speeds_num(8);
+sysfs_fan_speeds_num(9);
+sysfs_fan_speeds_num(10);
+sysfs_fan_speeds_num(11);
+sysfs_fan_speeds_num(12);
+sysfs_fan_speeds_num(13);
+sysfs_fan_speeds_num(14);
+sysfs_fan_speeds_num(15);
+sysfs_fan_speeds_num(16);
+  
+static const struct attribute_group fan_attribute_groups[] = {
+	{ .attrs = fan1_attributes },
+	{ .attrs = fan2_attributes },
+	{ .attrs = fan3_attributes },
+	{ .attrs = fan4_attributes },
+	{ .attrs = fan5_attributes },
+	{ .attrs = fan6_attributes },
+	{ .attrs = fan7_attributes },
+	{ .attrs = fan8_attributes },
+	{ .attrs = fan9_attributes },
+	{ .attrs = fan10_attributes },
+	{ .attrs = fan11_attributes },
+	{ .attrs = fan12_attributes },
+	{ .attrs = fan13_attributes },
+	{ .attrs = fan14_attributes },
+	{ .attrs = fan15_attributes },
+	{ .attrs = fan16_attributes },
+};
+
+static int 
+ast_pwm_tacho_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	int err;
+	int ret=0;
+	int i;
+
+	dev_dbg(&pdev->dev, "ast_pwm_fan_probe \n");
+
+	//SCU Pin-MUX 	//PWM & TACHO
+	ast_scu_multi_func_pwm_tacho();
+
+	//SCU PWM CTRL Reset
+	ast_scu_init_pwm_tacho();
+
+	ast_pwm_tacho = kzalloc(sizeof(struct ast_pwm_tacho_data), GFP_KERNEL);
+	if (!ast_pwm_tacho) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	ast_pwm_tacho->ast_pwm_data = pdev->dev.platform_data;	
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (NULL == res) {
+		dev_err(&pdev->dev, "cannot get IORESOURCE_MEM\n");
+		ret = -ENOENT;
+		goto out_mem;
+	}
+
+	if (!request_mem_region(res->start, resource_size(res), res->name)) {
+		dev_err(&pdev->dev, "cannot reserved region\n");
+		ret = -ENXIO;
+		goto out_mem;
+	}
+
+	ast_pwm_tacho->reg_base = ioremap(res->start, resource_size(res));
+	if (!ast_pwm_tacho->reg_base) {
+		ret = -EIO;
+		goto out_region;
+	}
+
+	ast_pwm_tacho->irq = platform_get_irq(pdev, 0);
+	if (ast_pwm_tacho->irq < 0) {
+		dev_err(&pdev->dev, "no irq specified\n");
+		ret = -ENOENT;
+		goto out_region;
+	}
+
+	/* Register sysfs hooks */
+	err = sysfs_create_group(&pdev->dev.kobj, &name_attribute_groups);
+	if (err)
+		goto out_region;
+
+	err = sysfs_create_group(&pdev->dev.kobj, &clk_attribute_groups);
+	if (err)
+		goto out_sysfs00;
+
+	ast_pwm_tacho->hwmon_dev = hwmon_device_register(&pdev->dev);
+	if (IS_ERR(ast_pwm_tacho->hwmon_dev)) {
+		ret = PTR_ERR(ast_pwm_tacho->hwmon_dev);
+		goto out_sysfs0;
+	}
+
+	for(i=0; i< PWM_CH_NUM; i++) {
+		err = sysfs_create_group(&pdev->dev.kobj, &pwm_attribute_groups[i]);
+		if (err)
+			goto out_sysfs0;
+	}
+
+	for(i=0; i< PWM_TYPE_NUM; i++) {
+		err = sysfs_create_group(&pdev->dev.kobj, &pwm_type_attribute_groups[i]);
+		if (err)
+			goto out_sysfs1;
+	}
+	
+
+	for(i=0; i< TACHO_NUM; i++) {
+		err = sysfs_create_group(&pdev->dev.kobj, &tacho_attribute_groups[i]);
+		if (err)
+			goto out_sysfs2;
+	}
+
+	for(i=0; i< PWM_TYPE_NUM; i++) {
+		err = sysfs_create_group(&pdev->dev.kobj, &tacho_type_attribute_groups[i]);
+		if (err)
+			goto out_sysfs3;
+	}
+
+	for(i=0; i< TACHO_NUM; i++) {
+		err = sysfs_create_group(&pdev->dev.kobj, &fan_attribute_groups[i]);
+		if (err)
+			goto out_sysfs4;
+	}
+
+	ast_pwm_taco_init();
+	
+	printk(KERN_INFO "ast_pwm_tacho: driver successfully loaded.\n");
+
+	return 0;
+
+out_sysfs4:
+	for(i=0; i< PWM_TYPE_NUM; i++)
+		sysfs_remove_group(&pdev->dev.kobj, &tacho_type_attribute_groups[i]);
+
+out_sysfs3:
+	for(i=0; i< TACHO_NUM; i++)
+		sysfs_remove_group(&pdev->dev.kobj, &tacho_attribute_groups[i]);
+
+out_sysfs2:
+	for(i=0; i< PWM_TYPE_NUM; i++)
+		sysfs_remove_group(&pdev->dev.kobj, &pwm_type_attribute_groups[i]);
+
+out_sysfs1:
+	for(i=0; i< PWM_CH_NUM; i++)
+		sysfs_remove_group(&pdev->dev.kobj, &pwm_attribute_groups[i]);
+out_sysfs0:
+	sysfs_remove_group(&pdev->dev.kobj, &clk_attribute_groups);
+out_sysfs00:
+	sysfs_remove_group(&pdev->dev.kobj, &name_attribute_groups);
+
+//out_irq:
+//	free_irq(ast_pwm_tacho->irq, NULL);
+out_region:
+	release_mem_region(res->start, res->end - res->start + 1);
+out_mem:
+	kfree(ast_pwm_tacho);
+out:
+	printk(KERN_WARNING "applesmc: driver init failed (ret=%d)!\n", ret);
+	return ret;
+}
+
+static int 
+ast_pwm_tacho_remove(struct platform_device *pdev)
+{
+	int i=0;
+	struct ast_pwm_tacho_data *ast_pwm_tacho = platform_get_drvdata(pdev);
+	struct resource *res;
+	printk(KERN_INFO "ast_pwm_tacho: driver unloaded.\n");
+
+    hwmon_device_unregister(ast_pwm_tacho->hwmon_dev);
+
+	for(i=0; i<16; i++) {
+		sysfs_remove_group(&pdev->dev.kobj, &tacho_attribute_groups[i]);
+		sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[i]);
+	}
+	for(i=0; i<3; i++)
+		sysfs_remove_group(&pdev->dev.kobj, &pwm_type_attribute_groups[i]);
+
+	for(i=0; i<8; i++)
+		sysfs_remove_group(&pdev->dev.kobj, &pwm_attribute_groups[i]);
+
+	sysfs_remove_group(&pdev->dev.kobj, &clk_attribute_groups);
+
+	sysfs_remove_group(&pdev->dev.kobj, &name_attribute_groups);
+
+	platform_set_drvdata(pdev, NULL);
+//	free_irq(ast_pwm_tacho->irq, ast_pwm_tacho);
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	iounmap(ast_pwm_tacho->reg_base);
+	release_mem_region(res->start, res->end - res->start + 1);
+	kfree(ast_pwm_tacho);
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int 
+ast_pwm_tacho_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	printk("ast_pwm_tacho_suspend : TODO \n");
+	return 0;
+}
+
+static int 
+ast_pwm_tacho_resume(struct platform_device *pdev)
+{
+	ast_pwm_taco_init();
+	return 0;
+}
+
+#else
+#define ast_pwm_tacho_suspend        NULL
+#define ast_pwm_tacho_resume         NULL
+#endif
+
+static struct platform_driver ast_pwm_tacho_driver = {
+	.probe			= ast_pwm_tacho_probe,
+	.remove 		= __devexit_p(ast_pwm_tacho_remove),
+    .suspend        = ast_pwm_tacho_suspend,
+    .resume         = ast_pwm_tacho_resume,
+    .driver         = {
+            .name   = "ast_pwm_tacho",
+            .owner  = THIS_MODULE,
+    },
+};
+
+static int __init 
+ast_pwm_tacho_init(void)
+{
+	return platform_driver_register(&ast_pwm_tacho_driver);
+}
+
+static void __exit 
+ast_pwm_tacho_exit(void)
+{
+	platform_driver_unregister(&ast_pwm_tacho_driver);
+}
+
+module_init(ast_pwm_tacho_init);
+module_exit(ast_pwm_tacho_exit);
+
+MODULE_AUTHOR("Ryan Chen <ryan_chen@aspeedtech.com>");
+MODULE_DESCRIPTION("PWM TACHO driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/atxp1.c b/drivers/hwmon/atxp1.c
new file mode 100644
index 0000000..d6b490d
--- /dev/null
+++ b/drivers/hwmon/atxp1.c
@@ -0,0 +1,383 @@
+/*
+    atxp1.c - kernel module for setting CPU VID and general purpose
+                     I/Os using the Attansic ATXP1 chip.
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-vid.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("System voltages control via Attansic ATXP1");
+MODULE_VERSION("0.6.3");
+MODULE_AUTHOR("Sebastian Witt <se.witt@gmx.net>");
+
+#define ATXP1_VID	0x00
+#define ATXP1_CVID	0x01
+#define ATXP1_GPIO1	0x06
+#define ATXP1_GPIO2	0x0a
+#define ATXP1_VIDENA	0x20
+#define ATXP1_VIDMASK	0x1f
+#define ATXP1_GPIO1MASK	0x0f
+
+static const unsigned short normal_i2c[] = { 0x37, 0x4e, I2C_CLIENT_END };
+
+I2C_CLIENT_INSMOD_1(atxp1);
+
+static int atxp1_probe(struct i2c_client *client,
+		       const struct i2c_device_id *id);
+static int atxp1_remove(struct i2c_client *client);
+static struct atxp1_data * atxp1_update_device(struct device *dev);
+static int atxp1_detect(struct i2c_client *client, int kind,
+			struct i2c_board_info *info);
+
+static const struct i2c_device_id atxp1_id[] = {
+	{ "atxp1", atxp1 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, atxp1_id);
+
+static struct i2c_driver atxp1_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "atxp1",
+	},
+	.probe		= atxp1_probe,
+	.remove		= atxp1_remove,
+	.id_table	= atxp1_id,
+	.detect		= atxp1_detect,
+	.address_data	= &addr_data,
+};
+
+struct atxp1_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	unsigned long last_updated;
+	u8 valid;
+	struct {
+		u8 vid;		/* VID output register */
+		u8 cpu_vid; /* VID input from CPU */
+		u8 gpio1;   /* General purpose I/O register 1 */
+		u8 gpio2;   /* General purpose I/O register 2 */
+	} reg;
+	u8 vrm;			/* Detected CPU VRM */
+};
+
+static struct atxp1_data * atxp1_update_device(struct device *dev)
+{
+	struct i2c_client *client;
+	struct atxp1_data *data;
+
+	client = to_i2c_client(dev);
+	data = i2c_get_clientdata(client);
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
+
+		/* Update local register data */
+		data->reg.vid = i2c_smbus_read_byte_data(client, ATXP1_VID);
+		data->reg.cpu_vid = i2c_smbus_read_byte_data(client, ATXP1_CVID);
+		data->reg.gpio1 = i2c_smbus_read_byte_data(client, ATXP1_GPIO1);
+		data->reg.gpio2 = i2c_smbus_read_byte_data(client, ATXP1_GPIO2);
+
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return(data);
+}
+
+/* sys file functions for cpu0_vid */
+static ssize_t atxp1_showvcore(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	int size;
+	struct atxp1_data *data;
+
+	data = atxp1_update_device(dev);
+
+	size = sprintf(buf, "%d\n", vid_from_reg(data->reg.vid & ATXP1_VIDMASK, data->vrm));
+
+	return size;
+}
+
+static ssize_t atxp1_storevcore(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct atxp1_data *data;
+	struct i2c_client *client;
+	int vid, cvid;
+	unsigned int vcore;
+
+	client = to_i2c_client(dev);
+	data = atxp1_update_device(dev);
+
+	vcore = simple_strtoul(buf, NULL, 10);
+	vcore /= 25;
+	vcore *= 25;
+
+	/* Calculate VID */
+	vid = vid_to_reg(vcore, data->vrm);
+
+	if (vid < 0) {
+		dev_err(dev, "VID calculation failed.\n");
+		return -1;
+	}
+
+	/* If output enabled, use control register value. Otherwise original CPU VID */
+	if (data->reg.vid & ATXP1_VIDENA)
+		cvid = data->reg.vid & ATXP1_VIDMASK;
+	else
+		cvid = data->reg.cpu_vid;
+
+	/* Nothing changed, aborting */
+	if (vid == cvid)
+		return count;
+
+	dev_dbg(dev, "Setting VCore to %d mV (0x%02x)\n", vcore, vid);
+
+	/* Write every 25 mV step to increase stability */
+	if (cvid > vid) {
+		for (; cvid >= vid; cvid--) {
+        		i2c_smbus_write_byte_data(client, ATXP1_VID, cvid | ATXP1_VIDENA);
+		}
+	}
+	else {
+		for (; cvid <= vid; cvid++) {
+        		i2c_smbus_write_byte_data(client, ATXP1_VID, cvid | ATXP1_VIDENA);
+		}
+	}
+
+	data->valid = 0;
+
+	return count;
+}
+
+/* CPU core reference voltage
+    unit: millivolt
+*/
+static DEVICE_ATTR(cpu0_vid, S_IRUGO | S_IWUSR, atxp1_showvcore, atxp1_storevcore);
+
+/* sys file functions for GPIO1 */
+static ssize_t atxp1_showgpio1(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	int size;
+	struct atxp1_data *data;
+
+	data = atxp1_update_device(dev);
+
+	size = sprintf(buf, "0x%02x\n", data->reg.gpio1 & ATXP1_GPIO1MASK);
+
+	return size;
+}
+
+static ssize_t atxp1_storegpio1(struct device *dev, struct device_attribute *attr, const char*buf, size_t count)
+{
+	struct atxp1_data *data;
+	struct i2c_client *client;
+	unsigned int value;
+
+	client = to_i2c_client(dev);
+	data = atxp1_update_device(dev);
+
+	value = simple_strtoul(buf, NULL, 16);
+
+	value &= ATXP1_GPIO1MASK;
+
+	if (value != (data->reg.gpio1 & ATXP1_GPIO1MASK)) {
+		dev_info(dev, "Writing 0x%x to GPIO1.\n", value);
+
+		i2c_smbus_write_byte_data(client, ATXP1_GPIO1, value);
+
+		data->valid = 0;
+	}
+
+	return count;
+}
+
+/* GPIO1 data register
+    unit: Four bit as hex (e.g. 0x0f)
+*/
+static DEVICE_ATTR(gpio1, S_IRUGO | S_IWUSR, atxp1_showgpio1, atxp1_storegpio1);
+
+/* sys file functions for GPIO2 */
+static ssize_t atxp1_showgpio2(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	int size;
+	struct atxp1_data *data;
+
+	data = atxp1_update_device(dev);
+
+	size = sprintf(buf, "0x%02x\n", data->reg.gpio2);
+
+	return size;
+}
+
+static ssize_t atxp1_storegpio2(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct atxp1_data *data;
+	struct i2c_client *client;
+	unsigned int value;
+
+	client = to_i2c_client(dev);
+	data = atxp1_update_device(dev);
+
+	value = simple_strtoul(buf, NULL, 16) & 0xff;
+
+	if (value != data->reg.gpio2) {
+		dev_info(dev, "Writing 0x%x to GPIO1.\n", value);
+
+		i2c_smbus_write_byte_data(client, ATXP1_GPIO2, value);
+
+		data->valid = 0;
+	}
+
+	return count;
+}
+
+/* GPIO2 data register
+    unit: Eight bit as hex (e.g. 0xff)
+*/
+static DEVICE_ATTR(gpio2, S_IRUGO | S_IWUSR, atxp1_showgpio2, atxp1_storegpio2);
+
+static struct attribute *atxp1_attributes[] = {
+	&dev_attr_gpio1.attr,
+	&dev_attr_gpio2.attr,
+	&dev_attr_cpu0_vid.attr,
+	NULL
+};
+
+static const struct attribute_group atxp1_group = {
+	.attrs = atxp1_attributes,
+};
+
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int atxp1_detect(struct i2c_client *new_client, int kind,
+			struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = new_client->adapter;
+
+	u8 temp;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	/* Detect ATXP1, checking if vendor ID registers are all zero */
+	if (!((i2c_smbus_read_byte_data(new_client, 0x3e) == 0) &&
+	     (i2c_smbus_read_byte_data(new_client, 0x3f) == 0) &&
+	     (i2c_smbus_read_byte_data(new_client, 0xfe) == 0) &&
+	     (i2c_smbus_read_byte_data(new_client, 0xff) == 0)))
+		return -ENODEV;
+
+	/* No vendor ID, now checking if registers 0x10,0x11 (non-existent)
+	 * showing the same as register 0x00 */
+	temp = i2c_smbus_read_byte_data(new_client, 0x00);
+
+	if (!((i2c_smbus_read_byte_data(new_client, 0x10) == temp) &&
+	      (i2c_smbus_read_byte_data(new_client, 0x11) == temp)))
+		return -ENODEV;
+
+	/* Get VRM */
+	temp = vid_which_vrm();
+
+	if ((temp != 90) && (temp != 91)) {
+		dev_err(&adapter->dev, "atxp1: Not supporting VRM %d.%d\n",
+				temp / 10, temp % 10);
+		return -ENODEV;
+	}
+
+	strlcpy(info->type, "atxp1", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int atxp1_probe(struct i2c_client *new_client,
+		       const struct i2c_device_id *id)
+{
+	struct atxp1_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct atxp1_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	/* Get VRM */
+	data->vrm = vid_which_vrm();
+
+	i2c_set_clientdata(new_client, data);
+	data->valid = 0;
+
+	mutex_init(&data->update_lock);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&new_client->dev.kobj, &atxp1_group)))
+		goto exit_free;
+
+	data->hwmon_dev = hwmon_device_register(&new_client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove_files;
+	}
+
+	dev_info(&new_client->dev, "Using VRM: %d.%d\n",
+			 data->vrm / 10, data->vrm % 10);
+
+	return 0;
+
+exit_remove_files:
+	sysfs_remove_group(&new_client->dev.kobj, &atxp1_group);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+};
+
+static int atxp1_remove(struct i2c_client *client)
+{
+	struct atxp1_data * data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &atxp1_group);
+
+	kfree(data);
+
+	return 0;
+};
+
+static int __init atxp1_init(void)
+{
+	return i2c_add_driver(&atxp1_driver);
+};
+
+static void __exit atxp1_exit(void)
+{
+	i2c_del_driver(&atxp1_driver);
+};
+
+module_init(atxp1_init);
+module_exit(atxp1_exit);
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
new file mode 100644
index 0000000..93c1722
--- /dev/null
+++ b/drivers/hwmon/coretemp.c
@@ -0,0 +1,479 @@
+/*
+ * coretemp.c - Linux kernel module for hardware monitoring
+ *
+ * Copyright (C) 2007 Rudolf Marek <r.marek@assembler.cz>
+ *
+ * Inspired from many hwmon drivers
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/hwmon.h>
+#include <linux/sysfs.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/list.h>
+#include <linux/platform_device.h>
+#include <linux/cpu.h>
+#include <asm/msr.h>
+#include <asm/processor.h>
+
+#define DRVNAME	"coretemp"
+
+typedef enum { SHOW_TEMP, SHOW_TJMAX, SHOW_TTARGET, SHOW_LABEL,
+		SHOW_NAME } SHOW;
+
+/*
+ * Functions declaration
+ */
+
+static struct coretemp_data *coretemp_update_device(struct device *dev);
+
+struct coretemp_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	const char *name;
+	u32 id;
+	char valid;		/* zero until following fields are valid */
+	unsigned long last_updated;	/* in jiffies */
+	int temp;
+	int tjmax;
+	int ttarget;
+	u8 alarm;
+};
+
+/*
+ * Sysfs stuff
+ */
+
+static ssize_t show_name(struct device *dev, struct device_attribute
+			  *devattr, char *buf)
+{
+	int ret;
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct coretemp_data *data = dev_get_drvdata(dev);
+
+	if (attr->index == SHOW_NAME)
+		ret = sprintf(buf, "%s\n", data->name);
+	else	/* show label */
+		ret = sprintf(buf, "Core %d\n", data->id);
+	return ret;
+}
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute
+			  *devattr, char *buf)
+{
+	struct coretemp_data *data = coretemp_update_device(dev);
+	/* read the Out-of-spec log, never clear */
+	return sprintf(buf, "%d\n", data->alarm);
+}
+
+static ssize_t show_temp(struct device *dev,
+			 struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct coretemp_data *data = coretemp_update_device(dev);
+	int err;
+
+	if (attr->index == SHOW_TEMP)
+		err = data->valid ? sprintf(buf, "%d\n", data->temp) : -EAGAIN;
+	else if (attr->index == SHOW_TJMAX)
+		err = sprintf(buf, "%d\n", data->tjmax);
+	else
+		err = sprintf(buf, "%d\n", data->ttarget);
+	return err;
+}
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL,
+			  SHOW_TEMP);
+static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp, NULL,
+			  SHOW_TJMAX);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_temp, NULL,
+			  SHOW_TTARGET);
+static DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL);
+static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, show_name, NULL, SHOW_LABEL);
+static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, SHOW_NAME);
+
+static struct attribute *coretemp_attributes[] = {
+	&sensor_dev_attr_name.dev_attr.attr,
+	&sensor_dev_attr_temp1_label.dev_attr.attr,
+	&dev_attr_temp1_crit_alarm.attr,
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_crit.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group coretemp_group = {
+	.attrs = coretemp_attributes,
+};
+
+static struct coretemp_data *coretemp_update_device(struct device *dev)
+{
+	struct coretemp_data *data = dev_get_drvdata(dev);
+
+	mutex_lock(&data->update_lock);
+
+	if (!data->valid || time_after(jiffies, data->last_updated + HZ)) {
+		u32 eax, edx;
+
+		data->valid = 0;
+		rdmsr_on_cpu(data->id, MSR_IA32_THERM_STATUS, &eax, &edx);
+		data->alarm = (eax >> 5) & 1;
+		/* update only if data has been valid */
+		if (eax & 0x80000000) {
+			data->temp = data->tjmax - (((eax >> 16)
+							& 0x7f) * 1000);
+			data->valid = 1;
+		} else {
+			dev_dbg(dev, "Temperature data invalid (0x%x)\n", eax);
+		}
+		data->last_updated = jiffies;
+	}
+
+	mutex_unlock(&data->update_lock);
+	return data;
+}
+
+static int __devinit adjust_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev)
+{
+	/* The 100C is default for both mobile and non mobile CPUs */
+
+	int tjmax = 100000;
+	int ismobile = 1;
+	int err;
+	u32 eax, edx;
+
+	/* Early chips have no MSR for TjMax */
+
+	if ((c->x86_model == 0xf) && (c->x86_mask < 4)) {
+		ismobile = 0;
+	}
+
+	if ((c->x86_model > 0xe) && (ismobile)) {
+
+		/* Now we can detect the mobile CPU using Intel provided table
+		   http://softwarecommunity.intel.com/Wiki/Mobility/720.htm
+		   For Core2 cores, check MSR 0x17, bit 28 1 = Mobile CPU
+		*/
+
+		err = rdmsr_safe_on_cpu(id, 0x17, &eax, &edx);
+		if (err) {
+			dev_warn(dev,
+				 "Unable to access MSR 0x17, assuming desktop"
+				 " CPU\n");
+			ismobile = 0;
+		} else if (!(eax & 0x10000000)) {
+			ismobile = 0;
+		}
+	}
+
+	if (ismobile) {
+
+		err = rdmsr_safe_on_cpu(id, 0xee, &eax, &edx);
+		if (err) {
+			dev_warn(dev,
+				 "Unable to access MSR 0xEE, for Tjmax, left"
+				 " at default");
+		} else if (eax & 0x40000000) {
+			tjmax = 85000;
+		}
+	} else {
+		dev_warn(dev, "Using relative temperature scale!\n");
+	}
+
+	return tjmax;
+}
+
+static int __devinit coretemp_probe(struct platform_device *pdev)
+{
+	struct coretemp_data *data;
+	struct cpuinfo_x86 *c = &cpu_data(pdev->id);
+	int err;
+	u32 eax, edx;
+
+	if (!(data = kzalloc(sizeof(struct coretemp_data), GFP_KERNEL))) {
+		err = -ENOMEM;
+		dev_err(&pdev->dev, "Out of memory\n");
+		goto exit;
+	}
+
+	data->id = pdev->id;
+	data->name = "coretemp";
+	mutex_init(&data->update_lock);
+
+	/* test if we can access the THERM_STATUS MSR */
+	err = rdmsr_safe_on_cpu(data->id, MSR_IA32_THERM_STATUS, &eax, &edx);
+	if (err) {
+		dev_err(&pdev->dev,
+			"Unable to access THERM_STATUS MSR, giving up\n");
+		goto exit_free;
+	}
+
+	/* Check if we have problem with errata AE18 of Core processors:
+	   Readings might stop update when processor visited too deep sleep,
+	   fixed for stepping D0 (6EC).
+	*/
+
+	if ((c->x86_model == 0xe) && (c->x86_mask < 0xc)) {
+		/* check for microcode update */
+		rdmsr_on_cpu(data->id, MSR_IA32_UCODE_REV, &eax, &edx);
+		if (edx < 0x39) {
+			err = -ENODEV;
+			dev_err(&pdev->dev,
+				"Errata AE18 not fixed, update BIOS or "
+				"microcode of the CPU!\n");
+			goto exit_free;
+		}
+	}
+
+	data->tjmax = adjust_tjmax(c, data->id, &pdev->dev);
+	platform_set_drvdata(pdev, data);
+
+	/* read the still undocumented IA32_TEMPERATURE_TARGET it exists
+	   on older CPUs but not in this register */
+
+	if (c->x86_model > 0xe) {
+		err = rdmsr_safe_on_cpu(data->id, 0x1a2, &eax, &edx);
+		if (err) {
+			dev_warn(&pdev->dev, "Unable to read"
+					" IA32_TEMPERATURE_TARGET MSR\n");
+		} else {
+			data->ttarget = data->tjmax -
+					(((eax >> 8) & 0xff) * 1000);
+			err = device_create_file(&pdev->dev,
+					&sensor_dev_attr_temp1_max.dev_attr);
+			if (err)
+				goto exit_free;
+		}
+	}
+
+	if ((err = sysfs_create_group(&pdev->dev.kobj, &coretemp_group)))
+		goto exit_dev;
+
+	data->hwmon_dev = hwmon_device_register(&pdev->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		dev_err(&pdev->dev, "Class registration failed (%d)\n",
+			err);
+		goto exit_class;
+	}
+
+	return 0;
+
+exit_class:
+	sysfs_remove_group(&pdev->dev.kobj, &coretemp_group);
+exit_dev:
+	device_remove_file(&pdev->dev, &sensor_dev_attr_temp1_max.dev_attr);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+static int __devexit coretemp_remove(struct platform_device *pdev)
+{
+	struct coretemp_data *data = platform_get_drvdata(pdev);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&pdev->dev.kobj, &coretemp_group);
+	device_remove_file(&pdev->dev, &sensor_dev_attr_temp1_max.dev_attr);
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+	return 0;
+}
+
+static struct platform_driver coretemp_driver = {
+	.driver = {
+		.owner = THIS_MODULE,
+		.name = DRVNAME,
+	},
+	.probe = coretemp_probe,
+	.remove = __devexit_p(coretemp_remove),
+};
+
+struct pdev_entry {
+	struct list_head list;
+	struct platform_device *pdev;
+	unsigned int cpu;
+};
+
+static LIST_HEAD(pdev_list);
+static DEFINE_MUTEX(pdev_list_mutex);
+
+static int __cpuinit coretemp_device_add(unsigned int cpu)
+{
+	int err;
+	struct platform_device *pdev;
+	struct pdev_entry *pdev_entry;
+
+	pdev = platform_device_alloc(DRVNAME, cpu);
+	if (!pdev) {
+		err = -ENOMEM;
+		printk(KERN_ERR DRVNAME ": Device allocation failed\n");
+		goto exit;
+	}
+
+	pdev_entry = kzalloc(sizeof(struct pdev_entry), GFP_KERNEL);
+	if (!pdev_entry) {
+		err = -ENOMEM;
+		goto exit_device_put;
+	}
+
+	err = platform_device_add(pdev);
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",
+		       err);
+		goto exit_device_free;
+	}
+
+	pdev_entry->pdev = pdev;
+	pdev_entry->cpu = cpu;
+	mutex_lock(&pdev_list_mutex);
+	list_add_tail(&pdev_entry->list, &pdev_list);
+	mutex_unlock(&pdev_list_mutex);
+
+	return 0;
+
+exit_device_free:
+	kfree(pdev_entry);
+exit_device_put:
+	platform_device_put(pdev);
+exit:
+	return err;
+}
+
+#ifdef CONFIG_HOTPLUG_CPU
+static void coretemp_device_remove(unsigned int cpu)
+{
+	struct pdev_entry *p, *n;
+	mutex_lock(&pdev_list_mutex);
+	list_for_each_entry_safe(p, n, &pdev_list, list) {
+		if (p->cpu == cpu) {
+			platform_device_unregister(p->pdev);
+			list_del(&p->list);
+			kfree(p);
+		}
+	}
+	mutex_unlock(&pdev_list_mutex);
+}
+
+static int __cpuinit coretemp_cpu_callback(struct notifier_block *nfb,
+				 unsigned long action, void *hcpu)
+{
+	unsigned int cpu = (unsigned long) hcpu;
+
+	switch (action) {
+	case CPU_ONLINE:
+	case CPU_DOWN_FAILED:
+		coretemp_device_add(cpu);
+		break;
+	case CPU_DOWN_PREPARE:
+		coretemp_device_remove(cpu);
+		break;
+	}
+	return NOTIFY_OK;
+}
+
+static struct notifier_block coretemp_cpu_notifier __refdata = {
+	.notifier_call = coretemp_cpu_callback,
+};
+#endif				/* !CONFIG_HOTPLUG_CPU */
+
+static int __init coretemp_init(void)
+{
+	int i, err = -ENODEV;
+	struct pdev_entry *p, *n;
+
+	/* quick check if we run Intel */
+	if (cpu_data(0).x86_vendor != X86_VENDOR_INTEL)
+		goto exit;
+
+	err = platform_driver_register(&coretemp_driver);
+	if (err)
+		goto exit;
+
+	for_each_online_cpu(i) {
+		struct cpuinfo_x86 *c = &cpu_data(i);
+
+		/* check if family 6, models 0xe, 0xf, 0x16, 0x17, 0x1A */
+		if ((c->cpuid_level < 0) || (c->x86 != 0x6) ||
+		    !((c->x86_model == 0xe) || (c->x86_model == 0xf) ||
+			(c->x86_model == 0x16) || (c->x86_model == 0x17) ||
+			(c->x86_model == 0x1A))) {
+
+			/* supported CPU not found, but report the unknown
+			   family 6 CPU */
+			if ((c->x86 == 0x6) && (c->x86_model > 0xf))
+				printk(KERN_WARNING DRVNAME ": Unknown CPU "
+					"model %x\n", c->x86_model);
+			continue;
+		}
+
+		err = coretemp_device_add(i);
+		if (err)
+			goto exit_devices_unreg;
+	}
+	if (list_empty(&pdev_list)) {
+		err = -ENODEV;
+		goto exit_driver_unreg;
+	}
+
+#ifdef CONFIG_HOTPLUG_CPU
+	register_hotcpu_notifier(&coretemp_cpu_notifier);
+#endif
+	return 0;
+
+exit_devices_unreg:
+	mutex_lock(&pdev_list_mutex);
+	list_for_each_entry_safe(p, n, &pdev_list, list) {
+		platform_device_unregister(p->pdev);
+		list_del(&p->list);
+		kfree(p);
+	}
+	mutex_unlock(&pdev_list_mutex);
+exit_driver_unreg:
+	platform_driver_unregister(&coretemp_driver);
+exit:
+	return err;
+}
+
+static void __exit coretemp_exit(void)
+{
+	struct pdev_entry *p, *n;
+#ifdef CONFIG_HOTPLUG_CPU
+	unregister_hotcpu_notifier(&coretemp_cpu_notifier);
+#endif
+	mutex_lock(&pdev_list_mutex);
+	list_for_each_entry_safe(p, n, &pdev_list, list) {
+		platform_device_unregister(p->pdev);
+		list_del(&p->list);
+		kfree(p);
+	}
+	mutex_unlock(&pdev_list_mutex);
+	platform_driver_unregister(&coretemp_driver);
+}
+
+MODULE_AUTHOR("Rudolf Marek <r.marek@assembler.cz>");
+MODULE_DESCRIPTION("Intel Core temperature monitor");
+MODULE_LICENSE("GPL");
+
+module_init(coretemp_init)
+module_exit(coretemp_exit)
diff --git a/drivers/hwmon/dme1737.c b/drivers/hwmon/dme1737.c
new file mode 100644
index 0000000..27a5d39
--- /dev/null
+++ b/drivers/hwmon/dme1737.c
@@ -0,0 +1,2546 @@
+/*
+ * dme1737.c - Driver for the SMSC DME1737, Asus A8000, SMSC SCH311x and
+ *             SCH5027 Super-I/O chips integrated hardware monitoring features.
+ * Copyright (c) 2007, 2008 Juerg Haefliger <juergh@gmail.com>
+ *
+ * This driver is an I2C/ISA hybrid, meaning that it uses the I2C bus to access
+ * the chip registers if a DME1737, A8000, or SCH5027 is found and the ISA bus
+ * if a SCH311x chip is found. Both types of chips have very similar hardware
+ * monitoring capabilities but differ in the way they can be accessed.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon-vid.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <asm/io.h>
+
+/* ISA device, if found */
+static struct platform_device *pdev;
+
+/* Module load parameters */
+static int force_start;
+module_param(force_start, bool, 0);
+MODULE_PARM_DESC(force_start, "Force the chip to start monitoring inputs");
+
+static unsigned short force_id;
+module_param(force_id, ushort, 0);
+MODULE_PARM_DESC(force_id, "Override the detected device ID");
+
+static int probe_all_addr;
+module_param(probe_all_addr, bool, 0);
+MODULE_PARM_DESC(probe_all_addr, "Include probing of non-standard LPC "
+		 "addresses");
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = {0x2c, 0x2d, 0x2e, I2C_CLIENT_END};
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_2(dme1737, sch5027);
+
+/* ISA chip types */
+enum isa_chips { sch311x = sch5027 + 1 };
+
+/* ---------------------------------------------------------------------
+ * Registers
+ *
+ * The sensors are defined as follows:
+ *
+ * Voltages                          Temperatures
+ * --------                          ------------
+ * in0   +5VTR (+5V stdby)           temp1   Remote diode 1
+ * in1   Vccp  (proc core)           temp2   Internal temp
+ * in2   VCC   (internal +3.3V)      temp3   Remote diode 2
+ * in3   +5V
+ * in4   +12V
+ * in5   VTR   (+3.3V stby)
+ * in6   Vbat
+ *
+ * --------------------------------------------------------------------- */
+
+/* Voltages (in) numbered 0-6 (ix) */
+#define	DME1737_REG_IN(ix)		((ix) < 5 ? 0x20 + (ix) \
+						  : 0x94 + (ix))
+#define	DME1737_REG_IN_MIN(ix)		((ix) < 5 ? 0x44 + (ix) * 2 \
+						  : 0x91 + (ix) * 2)
+#define	DME1737_REG_IN_MAX(ix)		((ix) < 5 ? 0x45 + (ix) * 2 \
+						  : 0x92 + (ix) * 2)
+
+/* Temperatures (temp) numbered 0-2 (ix) */
+#define DME1737_REG_TEMP(ix)		(0x25 + (ix))
+#define DME1737_REG_TEMP_MIN(ix)	(0x4e + (ix) * 2)
+#define DME1737_REG_TEMP_MAX(ix)	(0x4f + (ix) * 2)
+#define DME1737_REG_TEMP_OFFSET(ix)	((ix) == 0 ? 0x1f \
+						   : 0x1c + (ix))
+
+/* Voltage and temperature LSBs
+ * The LSBs (4 bits each) are stored in 5 registers with the following layouts:
+ *    IN_TEMP_LSB(0) = [in5, in6]
+ *    IN_TEMP_LSB(1) = [temp3, temp1]
+ *    IN_TEMP_LSB(2) = [in4, temp2]
+ *    IN_TEMP_LSB(3) = [in3, in0]
+ *    IN_TEMP_LSB(4) = [in2, in1] */
+#define DME1737_REG_IN_TEMP_LSB(ix)	(0x84 + (ix))
+static const u8 DME1737_REG_IN_LSB[] = {3, 4, 4, 3, 2, 0, 0};
+static const u8 DME1737_REG_IN_LSB_SHL[] = {4, 4, 0, 0, 0, 0, 4};
+static const u8 DME1737_REG_TEMP_LSB[] = {1, 2, 1};
+static const u8 DME1737_REG_TEMP_LSB_SHL[] = {4, 4, 0};
+
+/* Fans numbered 0-5 (ix) */
+#define DME1737_REG_FAN(ix)		((ix) < 4 ? 0x28 + (ix) * 2 \
+						  : 0xa1 + (ix) * 2)
+#define DME1737_REG_FAN_MIN(ix)		((ix) < 4 ? 0x54 + (ix) * 2 \
+						  : 0xa5 + (ix) * 2)
+#define DME1737_REG_FAN_OPT(ix)		((ix) < 4 ? 0x90 + (ix) \
+						  : 0xb2 + (ix))
+#define DME1737_REG_FAN_MAX(ix)		(0xb4 + (ix)) /* only for fan[4-5] */
+
+/* PWMs numbered 0-2, 4-5 (ix) */
+#define DME1737_REG_PWM(ix)		((ix) < 3 ? 0x30 + (ix) \
+						  : 0xa1 + (ix))
+#define DME1737_REG_PWM_CONFIG(ix)	(0x5c + (ix)) /* only for pwm[0-2] */
+#define DME1737_REG_PWM_MIN(ix)		(0x64 + (ix)) /* only for pwm[0-2] */
+#define DME1737_REG_PWM_FREQ(ix)	((ix) < 3 ? 0x5f + (ix) \
+						  : 0xa3 + (ix))
+/* The layout of the ramp rate registers is different from the other pwm
+ * registers. The bits for the 3 PWMs are stored in 2 registers:
+ *    PWM_RR(0) = [OFF3, OFF2,  OFF1,  RES,   RR1E, RR1-2, RR1-1, RR1-0]
+ *    PWM_RR(1) = [RR2E, RR2-2, RR2-1, RR2-0, RR3E, RR3-2, RR3-1, RR3-0] */
+#define DME1737_REG_PWM_RR(ix)		(0x62 + (ix)) /* only for pwm[0-2] */
+
+/* Thermal zones 0-2 */
+#define DME1737_REG_ZONE_LOW(ix)	(0x67 + (ix))
+#define DME1737_REG_ZONE_ABS(ix)	(0x6a + (ix))
+/* The layout of the hysteresis registers is different from the other zone
+ * registers. The bits for the 3 zones are stored in 2 registers:
+ *    ZONE_HYST(0) = [H1-3,  H1-2,  H1-1, H1-0, H2-3, H2-2, H2-1, H2-0]
+ *    ZONE_HYST(1) = [H3-3,  H3-2,  H3-1, H3-0, RES,  RES,  RES,  RES] */
+#define DME1737_REG_ZONE_HYST(ix)	(0x6d + (ix))
+
+/* Alarm registers and bit mapping
+ * The 3 8-bit alarm registers will be concatenated to a single 32-bit
+ * alarm value [0, ALARM3, ALARM2, ALARM1]. */
+#define DME1737_REG_ALARM1		0x41
+#define DME1737_REG_ALARM2		0x42
+#define DME1737_REG_ALARM3		0x83
+static const u8 DME1737_BIT_ALARM_IN[] = {0, 1, 2, 3, 8, 16, 17};
+static const u8 DME1737_BIT_ALARM_TEMP[] = {4, 5, 6};
+static const u8 DME1737_BIT_ALARM_FAN[] = {10, 11, 12, 13, 22, 23};
+
+/* Miscellaneous registers */
+#define DME1737_REG_DEVICE		0x3d
+#define DME1737_REG_COMPANY		0x3e
+#define DME1737_REG_VERSTEP		0x3f
+#define DME1737_REG_CONFIG		0x40
+#define DME1737_REG_CONFIG2		0x7f
+#define DME1737_REG_VID			0x43
+#define DME1737_REG_TACH_PWM		0x81
+
+/* ---------------------------------------------------------------------
+ * Misc defines
+ * --------------------------------------------------------------------- */
+
+/* Chip identification */
+#define DME1737_COMPANY_SMSC	0x5c
+#define DME1737_VERSTEP		0x88
+#define DME1737_VERSTEP_MASK	0xf8
+#define SCH311X_DEVICE		0x8c
+#define SCH5027_VERSTEP		0x69
+
+/* Length of ISA address segment */
+#define DME1737_EXTENT	2
+
+/* ---------------------------------------------------------------------
+ * Data structures and manipulation thereof
+ * --------------------------------------------------------------------- */
+
+struct dme1737_data {
+	struct i2c_client *client;	/* for I2C devices only */
+	struct device *hwmon_dev;
+	const char *name;
+	unsigned int addr;		/* for ISA devices only */
+
+	struct mutex update_lock;
+	int valid;			/* !=0 if following fields are valid */
+	unsigned long last_update;	/* in jiffies */
+	unsigned long last_vbat;	/* in jiffies */
+	enum chips type;
+	const int *in_nominal;		/* pointer to IN_NOMINAL array */
+
+	u8 vid;
+	u8 pwm_rr_en;
+	u8 has_pwm;
+	u8 has_fan;
+
+	/* Register values */
+	u16 in[7];
+	u8  in_min[7];
+	u8  in_max[7];
+	s16 temp[3];
+	s8  temp_min[3];
+	s8  temp_max[3];
+	s8  temp_offset[3];
+	u8  config;
+	u8  config2;
+	u8  vrm;
+	u16 fan[6];
+	u16 fan_min[6];
+	u8  fan_max[2];
+	u8  fan_opt[6];
+	u8  pwm[6];
+	u8  pwm_min[3];
+	u8  pwm_config[3];
+	u8  pwm_acz[3];
+	u8  pwm_freq[6];
+	u8  pwm_rr[2];
+	u8  zone_low[3];
+	u8  zone_abs[3];
+	u8  zone_hyst[2];
+	u32 alarms;
+};
+
+/* Nominal voltage values */
+static const int IN_NOMINAL_DME1737[] = {5000, 2250, 3300, 5000, 12000, 3300,
+					 3300};
+static const int IN_NOMINAL_SCH311x[] = {2500, 1500, 3300, 5000, 12000, 3300,
+					 3300};
+static const int IN_NOMINAL_SCH5027[] = {5000, 2250, 3300, 1125, 1125, 3300,
+					 3300};
+#define IN_NOMINAL(type)	((type) == sch311x ? IN_NOMINAL_SCH311x : \
+				 (type) == sch5027 ? IN_NOMINAL_SCH5027 : \
+				 IN_NOMINAL_DME1737)
+
+/* Voltage input
+ * Voltage inputs have 16 bits resolution, limit values have 8 bits
+ * resolution. */
+static inline int IN_FROM_REG(int reg, int nominal, int res)
+{
+	return (reg * nominal + (3 << (res - 3))) / (3 << (res - 2));
+}
+
+static inline int IN_TO_REG(int val, int nominal)
+{
+	return SENSORS_LIMIT((val * 192 + nominal / 2) / nominal, 0, 255);
+}
+
+/* Temperature input
+ * The register values represent temperatures in 2's complement notation from
+ * -127 degrees C to +127 degrees C. Temp inputs have 16 bits resolution, limit
+ * values have 8 bits resolution. */
+static inline int TEMP_FROM_REG(int reg, int res)
+{
+	return (reg * 1000) >> (res - 8);
+}
+
+static inline int TEMP_TO_REG(int val)
+{
+	return SENSORS_LIMIT((val < 0 ? val - 500 : val + 500) / 1000,
+			     -128, 127);
+}
+
+/* Temperature range */
+static const int TEMP_RANGE[] = {2000, 2500, 3333, 4000, 5000, 6666, 8000,
+				 10000, 13333, 16000, 20000, 26666, 32000,
+				 40000, 53333, 80000};
+
+static inline int TEMP_RANGE_FROM_REG(int reg)
+{
+	return TEMP_RANGE[(reg >> 4) & 0x0f];
+}
+
+static int TEMP_RANGE_TO_REG(int val, int reg)
+{
+	int i;
+
+	for (i = 15; i > 0; i--) {
+		if (val > (TEMP_RANGE[i] + TEMP_RANGE[i - 1] + 1) / 2) {
+			break;
+		}
+	}
+
+	return (reg & 0x0f) | (i << 4);
+}
+
+/* Temperature hysteresis
+ * Register layout:
+ *    reg[0] = [H1-3, H1-2, H1-1, H1-0, H2-3, H2-2, H2-1, H2-0]
+ *    reg[1] = [H3-3, H3-2, H3-1, H3-0, xxxx, xxxx, xxxx, xxxx] */
+static inline int TEMP_HYST_FROM_REG(int reg, int ix)
+{
+	return (((ix == 1) ? reg : reg >> 4) & 0x0f) * 1000;
+}
+
+static inline int TEMP_HYST_TO_REG(int val, int ix, int reg)
+{
+	int hyst = SENSORS_LIMIT((val + 500) / 1000, 0, 15);
+
+	return (ix == 1) ? (reg & 0xf0) | hyst : (reg & 0x0f) | (hyst << 4);
+}
+
+/* Fan input RPM */
+static inline int FAN_FROM_REG(int reg, int tpc)
+{
+	if (tpc) {
+		return tpc * reg;
+	} else {
+		return (reg == 0 || reg == 0xffff) ? 0 : 90000 * 60 / reg;
+	}
+}
+
+static inline int FAN_TO_REG(int val, int tpc)
+{
+	if (tpc) {
+		return SENSORS_LIMIT(val / tpc, 0, 0xffff);
+	} else {
+		return (val <= 0) ? 0xffff :
+			SENSORS_LIMIT(90000 * 60 / val, 0, 0xfffe);
+	}
+}
+
+/* Fan TPC (tach pulse count)
+ * Converts a register value to a TPC multiplier or returns 0 if the tachometer
+ * is configured in legacy (non-tpc) mode */
+static inline int FAN_TPC_FROM_REG(int reg)
+{
+	return (reg & 0x20) ? 0 : 60 >> (reg & 0x03);
+}
+
+/* Fan type
+ * The type of a fan is expressed in number of pulses-per-revolution that it
+ * emits */
+static inline int FAN_TYPE_FROM_REG(int reg)
+{
+	int edge = (reg >> 1) & 0x03;
+
+	return (edge > 0) ? 1 << (edge - 1) : 0;
+}
+
+static inline int FAN_TYPE_TO_REG(int val, int reg)
+{
+	int edge = (val == 4) ? 3 : val;
+
+	return (reg & 0xf9) | (edge << 1);
+}
+
+/* Fan max RPM */
+static const int FAN_MAX[] = {0x54, 0x38, 0x2a, 0x21, 0x1c, 0x18, 0x15, 0x12,
+			      0x11, 0x0f, 0x0e};
+
+static int FAN_MAX_FROM_REG(int reg)
+{
+	int i;
+
+	for (i = 10; i > 0; i--) {
+		if (reg == FAN_MAX[i]) {
+			break;
+		}
+	}
+
+	return 1000 + i * 500;
+}
+
+static int FAN_MAX_TO_REG(int val)
+{
+	int i;
+
+	for (i = 10; i > 0; i--) {
+		if (val > (1000 + (i - 1) * 500)) {
+			break;
+		}
+	}
+
+	return FAN_MAX[i];
+}
+
+/* PWM enable
+ * Register to enable mapping:
+ * 000:  2  fan on zone 1 auto
+ * 001:  2  fan on zone 2 auto
+ * 010:  2  fan on zone 3 auto
+ * 011:  0  fan full on
+ * 100: -1  fan disabled
+ * 101:  2  fan on hottest of zones 2,3 auto
+ * 110:  2  fan on hottest of zones 1,2,3 auto
+ * 111:  1  fan in manual mode */
+static inline int PWM_EN_FROM_REG(int reg)
+{
+	static const int en[] = {2, 2, 2, 0, -1, 2, 2, 1};
+
+	return en[(reg >> 5) & 0x07];
+}
+
+static inline int PWM_EN_TO_REG(int val, int reg)
+{
+	int en = (val == 1) ? 7 : 3;
+
+	return (reg & 0x1f) | ((en & 0x07) << 5);
+}
+
+/* PWM auto channels zone
+ * Register to auto channels zone mapping (ACZ is a bitfield with bit x
+ * corresponding to zone x+1):
+ * 000: 001  fan on zone 1 auto
+ * 001: 010  fan on zone 2 auto
+ * 010: 100  fan on zone 3 auto
+ * 011: 000  fan full on
+ * 100: 000  fan disabled
+ * 101: 110  fan on hottest of zones 2,3 auto
+ * 110: 111  fan on hottest of zones 1,2,3 auto
+ * 111: 000  fan in manual mode */
+static inline int PWM_ACZ_FROM_REG(int reg)
+{
+	static const int acz[] = {1, 2, 4, 0, 0, 6, 7, 0};
+
+	return acz[(reg >> 5) & 0x07];
+}
+
+static inline int PWM_ACZ_TO_REG(int val, int reg)
+{
+	int acz = (val == 4) ? 2 : val - 1;
+
+	return (reg & 0x1f) | ((acz & 0x07) << 5);
+}
+
+/* PWM frequency */
+static const int PWM_FREQ[] = {11, 15, 22, 29, 35, 44, 59, 88,
+			       15000, 20000, 30000, 25000, 0, 0, 0, 0};
+
+static inline int PWM_FREQ_FROM_REG(int reg)
+{
+	return PWM_FREQ[reg & 0x0f];
+}
+
+static int PWM_FREQ_TO_REG(int val, int reg)
+{
+	int i;
+
+	/* the first two cases are special - stupid chip design! */
+	if (val > 27500) {
+		i = 10;
+	} else if (val > 22500) {
+		i = 11;
+	} else {
+		for (i = 9; i > 0; i--) {
+			if (val > (PWM_FREQ[i] + PWM_FREQ[i - 1] + 1) / 2) {
+				break;
+			}
+		}
+	}
+
+	return (reg & 0xf0) | i;
+}
+
+/* PWM ramp rate
+ * Register layout:
+ *    reg[0] = [OFF3,  OFF2,  OFF1,  RES,   RR1-E, RR1-2, RR1-1, RR1-0]
+ *    reg[1] = [RR2-E, RR2-2, RR2-1, RR2-0, RR3-E, RR3-2, RR3-1, RR3-0] */
+static const u8 PWM_RR[] = {206, 104, 69, 41, 26, 18, 10, 5};
+
+static inline int PWM_RR_FROM_REG(int reg, int ix)
+{
+	int rr = (ix == 1) ? reg >> 4 : reg;
+
+	return (rr & 0x08) ? PWM_RR[rr & 0x07] : 0;
+}
+
+static int PWM_RR_TO_REG(int val, int ix, int reg)
+{
+	int i;
+
+	for (i = 0; i < 7; i++) {
+		if (val > (PWM_RR[i] + PWM_RR[i + 1] + 1) / 2) {
+			break;
+		}
+	}
+
+	return (ix == 1) ? (reg & 0x8f) | (i << 4) : (reg & 0xf8) | i;
+}
+
+/* PWM ramp rate enable */
+static inline int PWM_RR_EN_FROM_REG(int reg, int ix)
+{
+	return PWM_RR_FROM_REG(reg, ix) ? 1 : 0;
+}
+
+static inline int PWM_RR_EN_TO_REG(int val, int ix, int reg)
+{
+	int en = (ix == 1) ? 0x80 : 0x08;
+
+	return val ? reg | en : reg & ~en;
+}
+
+/* PWM min/off
+ * The PWM min/off bits are part of the PMW ramp rate register 0 (see above for
+ * the register layout). */
+static inline int PWM_OFF_FROM_REG(int reg, int ix)
+{
+	return (reg >> (ix + 5)) & 0x01;
+}
+
+static inline int PWM_OFF_TO_REG(int val, int ix, int reg)
+{
+	return (reg & ~(1 << (ix + 5))) | ((val & 0x01) << (ix + 5));
+}
+
+/* ---------------------------------------------------------------------
+ * Device I/O access
+ *
+ * ISA access is performed through an index/data register pair and needs to
+ * be protected by a mutex during runtime (not required for initialization).
+ * We use data->update_lock for this and need to ensure that we acquire it
+ * before calling dme1737_read or dme1737_write.
+ * --------------------------------------------------------------------- */
+
+static u8 dme1737_read(const struct dme1737_data *data, u8 reg)
+{
+	struct i2c_client *client = data->client;
+	s32 val;
+
+	if (client) { /* I2C device */
+		val = i2c_smbus_read_byte_data(client, reg);
+
+		if (val < 0) {
+			dev_warn(&client->dev, "Read from register "
+				 "0x%02x failed! Please report to the driver "
+				 "maintainer.\n", reg);
+		}
+	} else { /* ISA device */
+		outb(reg, data->addr);
+		val = inb(data->addr + 1);
+	}
+
+	return val;
+}
+
+static s32 dme1737_write(const struct dme1737_data *data, u8 reg, u8 val)
+{
+	struct i2c_client *client = data->client;
+	s32 res = 0;
+
+	if (client) { /* I2C device */
+		res = i2c_smbus_write_byte_data(client, reg, val);
+
+		if (res < 0) {
+			dev_warn(&client->dev, "Write to register "
+				 "0x%02x failed! Please report to the driver "
+				 "maintainer.\n", reg);
+		}
+	} else { /* ISA device */
+		outb(reg, data->addr);
+		outb(val, data->addr + 1);
+	}
+
+	return res;
+}
+
+static struct dme1737_data *dme1737_update_device(struct device *dev)
+{
+	struct dme1737_data *data = dev_get_drvdata(dev);
+	int ix;
+	u8 lsb[5];
+
+	mutex_lock(&data->update_lock);
+
+	/* Enable a Vbat monitoring cycle every 10 mins */
+	if (time_after(jiffies, data->last_vbat + 600 * HZ) || !data->valid) {
+		dme1737_write(data, DME1737_REG_CONFIG, dme1737_read(data,
+						DME1737_REG_CONFIG) | 0x10);
+		data->last_vbat = jiffies;
+	}
+
+	/* Sample register contents every 1 sec */
+	if (time_after(jiffies, data->last_update + HZ) || !data->valid) {
+		if (data->type != sch5027) {
+			data->vid = dme1737_read(data, DME1737_REG_VID) &
+				0x3f;
+		}
+
+		/* In (voltage) registers */
+		for (ix = 0; ix < ARRAY_SIZE(data->in); ix++) {
+			/* Voltage inputs are stored as 16 bit values even
+			 * though they have only 12 bits resolution. This is
+			 * to make it consistent with the temp inputs. */
+			data->in[ix] = dme1737_read(data,
+					DME1737_REG_IN(ix)) << 8;
+			data->in_min[ix] = dme1737_read(data,
+					DME1737_REG_IN_MIN(ix));
+			data->in_max[ix] = dme1737_read(data,
+					DME1737_REG_IN_MAX(ix));
+		}
+
+		/* Temp registers */
+		for (ix = 0; ix < ARRAY_SIZE(data->temp); ix++) {
+			/* Temp inputs are stored as 16 bit values even
+			 * though they have only 12 bits resolution. This is
+			 * to take advantage of implicit conversions between
+			 * register values (2's complement) and temp values
+			 * (signed decimal). */
+			data->temp[ix] = dme1737_read(data,
+					DME1737_REG_TEMP(ix)) << 8;
+			data->temp_min[ix] = dme1737_read(data,
+					DME1737_REG_TEMP_MIN(ix));
+			data->temp_max[ix] = dme1737_read(data,
+					DME1737_REG_TEMP_MAX(ix));
+			if (data->type != sch5027) {
+				data->temp_offset[ix] = dme1737_read(data,
+						DME1737_REG_TEMP_OFFSET(ix));
+			}
+		}
+
+		/* In and temp LSB registers
+		 * The LSBs are latched when the MSBs are read, so the order in
+		 * which the registers are read (MSB first, then LSB) is
+		 * important! */
+		for (ix = 0; ix < ARRAY_SIZE(lsb); ix++) {
+			lsb[ix] = dme1737_read(data,
+					DME1737_REG_IN_TEMP_LSB(ix));
+		}
+		for (ix = 0; ix < ARRAY_SIZE(data->in); ix++) {
+			data->in[ix] |= (lsb[DME1737_REG_IN_LSB[ix]] <<
+					DME1737_REG_IN_LSB_SHL[ix]) & 0xf0;
+		}
+		for (ix = 0; ix < ARRAY_SIZE(data->temp); ix++) {
+			data->temp[ix] |= (lsb[DME1737_REG_TEMP_LSB[ix]] <<
+					DME1737_REG_TEMP_LSB_SHL[ix]) & 0xf0;
+		}
+
+		/* Fan registers */
+		for (ix = 0; ix < ARRAY_SIZE(data->fan); ix++) {
+			/* Skip reading registers if optional fans are not
+			 * present */
+			if (!(data->has_fan & (1 << ix))) {
+				continue;
+			}
+			data->fan[ix] = dme1737_read(data,
+					DME1737_REG_FAN(ix));
+			data->fan[ix] |= dme1737_read(data,
+					DME1737_REG_FAN(ix) + 1) << 8;
+			data->fan_min[ix] = dme1737_read(data,
+					DME1737_REG_FAN_MIN(ix));
+			data->fan_min[ix] |= dme1737_read(data,
+					DME1737_REG_FAN_MIN(ix) + 1) << 8;
+			data->fan_opt[ix] = dme1737_read(data,
+					DME1737_REG_FAN_OPT(ix));
+			/* fan_max exists only for fan[5-6] */
+			if (ix > 3) {
+				data->fan_max[ix - 4] = dme1737_read(data,
+					DME1737_REG_FAN_MAX(ix));
+			}
+		}
+
+		/* PWM registers */
+		for (ix = 0; ix < ARRAY_SIZE(data->pwm); ix++) {
+			/* Skip reading registers if optional PWMs are not
+			 * present */
+			if (!(data->has_pwm & (1 << ix))) {
+				continue;
+			}
+			data->pwm[ix] = dme1737_read(data,
+					DME1737_REG_PWM(ix));
+			data->pwm_freq[ix] = dme1737_read(data,
+					DME1737_REG_PWM_FREQ(ix));
+			/* pwm_config and pwm_min exist only for pwm[1-3] */
+			if (ix < 3) {
+				data->pwm_config[ix] = dme1737_read(data,
+						DME1737_REG_PWM_CONFIG(ix));
+				data->pwm_min[ix] = dme1737_read(data,
+						DME1737_REG_PWM_MIN(ix));
+			}
+		}
+		for (ix = 0; ix < ARRAY_SIZE(data->pwm_rr); ix++) {
+			data->pwm_rr[ix] = dme1737_read(data,
+						DME1737_REG_PWM_RR(ix));
+		}
+
+		/* Thermal zone registers */
+		for (ix = 0; ix < ARRAY_SIZE(data->zone_low); ix++) {
+			data->zone_low[ix] = dme1737_read(data,
+					DME1737_REG_ZONE_LOW(ix));
+			data->zone_abs[ix] = dme1737_read(data,
+					DME1737_REG_ZONE_ABS(ix));
+		}
+		if (data->type != sch5027) {
+			for (ix = 0; ix < ARRAY_SIZE(data->zone_hyst); ix++) {
+				data->zone_hyst[ix] = dme1737_read(data,
+						DME1737_REG_ZONE_HYST(ix));
+			}
+		}
+
+		/* Alarm registers */
+		data->alarms = dme1737_read(data,
+						DME1737_REG_ALARM1);
+		/* Bit 7 tells us if the other alarm registers are non-zero and
+		 * therefore also need to be read */
+		if (data->alarms & 0x80) {
+			data->alarms |= dme1737_read(data,
+						DME1737_REG_ALARM2) << 8;
+			data->alarms |= dme1737_read(data,
+						DME1737_REG_ALARM3) << 16;
+		}
+
+		/* The ISA chips require explicit clearing of alarm bits.
+		 * Don't worry, an alarm will come back if the condition
+		 * that causes it still exists */
+		if (!data->client) {
+			if (data->alarms & 0xff0000) {
+				dme1737_write(data, DME1737_REG_ALARM3,
+					      0xff);
+			}
+			if (data->alarms & 0xff00) {
+				dme1737_write(data, DME1737_REG_ALARM2,
+					      0xff);
+			}
+			if (data->alarms & 0xff) {
+				dme1737_write(data, DME1737_REG_ALARM1,
+					      0xff);
+			}
+		}
+
+		data->last_update = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+/* ---------------------------------------------------------------------
+ * Voltage sysfs attributes
+ * ix = [0-5]
+ * --------------------------------------------------------------------- */
+
+#define SYS_IN_INPUT	0
+#define SYS_IN_MIN	1
+#define SYS_IN_MAX	2
+#define SYS_IN_ALARM	3
+
+static ssize_t show_in(struct device *dev, struct device_attribute *attr,
+		       char *buf)
+{
+	struct dme1737_data *data = dme1737_update_device(dev);
+	struct sensor_device_attribute_2
+		*sensor_attr_2 = to_sensor_dev_attr_2(attr);
+	int ix = sensor_attr_2->index;
+	int fn = sensor_attr_2->nr;
+	int res;
+
+	switch (fn) {
+	case SYS_IN_INPUT:
+		res = IN_FROM_REG(data->in[ix], data->in_nominal[ix], 16);
+		break;
+	case SYS_IN_MIN:
+		res = IN_FROM_REG(data->in_min[ix], data->in_nominal[ix], 8);
+		break;
+	case SYS_IN_MAX:
+		res = IN_FROM_REG(data->in_max[ix], data->in_nominal[ix], 8);
+		break;
+	case SYS_IN_ALARM:
+		res = (data->alarms >> DME1737_BIT_ALARM_IN[ix]) & 0x01;
+		break;
+	default:
+		res = 0;
+		dev_dbg(dev, "Unknown function %d.\n", fn);
+	}
+
+	return sprintf(buf, "%d\n", res);
+}
+
+static ssize_t set_in(struct device *dev, struct device_attribute *attr,
+		      const char *buf, size_t count)
+{
+	struct dme1737_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute_2
+		*sensor_attr_2 = to_sensor_dev_attr_2(attr);
+	int ix = sensor_attr_2->index;
+	int fn = sensor_attr_2->nr;
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	switch (fn) {
+	case SYS_IN_MIN:
+		data->in_min[ix] = IN_TO_REG(val, data->in_nominal[ix]);
+		dme1737_write(data, DME1737_REG_IN_MIN(ix),
+			      data->in_min[ix]);
+		break;
+	case SYS_IN_MAX:
+		data->in_max[ix] = IN_TO_REG(val, data->in_nominal[ix]);
+		dme1737_write(data, DME1737_REG_IN_MAX(ix),
+			      data->in_max[ix]);
+		break;
+	default:
+		dev_dbg(dev, "Unknown function %d.\n", fn);
+	}
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/* ---------------------------------------------------------------------
+ * Temperature sysfs attributes
+ * ix = [0-2]
+ * --------------------------------------------------------------------- */
+
+#define SYS_TEMP_INPUT			0
+#define SYS_TEMP_MIN			1
+#define SYS_TEMP_MAX			2
+#define SYS_TEMP_OFFSET			3
+#define SYS_TEMP_ALARM			4
+#define SYS_TEMP_FAULT			5
+
+static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
+			 char *buf)
+{
+	struct dme1737_data *data = dme1737_update_device(dev);
+	struct sensor_device_attribute_2
+		*sensor_attr_2 = to_sensor_dev_attr_2(attr);
+	int ix = sensor_attr_2->index;
+	int fn = sensor_attr_2->nr;
+	int res;
+
+	switch (fn) {
+	case SYS_TEMP_INPUT:
+		res = TEMP_FROM_REG(data->temp[ix], 16);
+		break;
+	case SYS_TEMP_MIN:
+		res = TEMP_FROM_REG(data->temp_min[ix], 8);
+		break;
+	case SYS_TEMP_MAX:
+		res = TEMP_FROM_REG(data->temp_max[ix], 8);
+		break;
+	case SYS_TEMP_OFFSET:
+		res = TEMP_FROM_REG(data->temp_offset[ix], 8);
+		break;
+	case SYS_TEMP_ALARM:
+		res = (data->alarms >> DME1737_BIT_ALARM_TEMP[ix]) & 0x01;
+		break;
+	case SYS_TEMP_FAULT:
+		res = (((u16)data->temp[ix] & 0xff00) == 0x8000);
+		break;
+	default:
+		res = 0;
+		dev_dbg(dev, "Unknown function %d.\n", fn);
+	}
+
+	return sprintf(buf, "%d\n", res);
+}
+
+static ssize_t set_temp(struct device *dev, struct device_attribute *attr,
+			const char *buf, size_t count)
+{
+	struct dme1737_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute_2
+		*sensor_attr_2 = to_sensor_dev_attr_2(attr);
+	int ix = sensor_attr_2->index;
+	int fn = sensor_attr_2->nr;
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	switch (fn) {
+	case SYS_TEMP_MIN:
+		data->temp_min[ix] = TEMP_TO_REG(val);
+		dme1737_write(data, DME1737_REG_TEMP_MIN(ix),
+			      data->temp_min[ix]);
+		break;
+	case SYS_TEMP_MAX:
+		data->temp_max[ix] = TEMP_TO_REG(val);
+		dme1737_write(data, DME1737_REG_TEMP_MAX(ix),
+			      data->temp_max[ix]);
+		break;
+	case SYS_TEMP_OFFSET:
+		data->temp_offset[ix] = TEMP_TO_REG(val);
+		dme1737_write(data, DME1737_REG_TEMP_OFFSET(ix),
+			      data->temp_offset[ix]);
+		break;
+	default:
+		dev_dbg(dev, "Unknown function %d.\n", fn);
+	}
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/* ---------------------------------------------------------------------
+ * Zone sysfs attributes
+ * ix = [0-2]
+ * --------------------------------------------------------------------- */
+
+#define SYS_ZONE_AUTO_CHANNELS_TEMP	0
+#define SYS_ZONE_AUTO_POINT1_TEMP_HYST	1
+#define SYS_ZONE_AUTO_POINT1_TEMP	2
+#define SYS_ZONE_AUTO_POINT2_TEMP	3
+#define SYS_ZONE_AUTO_POINT3_TEMP	4
+
+static ssize_t show_zone(struct device *dev, struct device_attribute *attr,
+			 char *buf)
+{
+	struct dme1737_data *data = dme1737_update_device(dev);
+	struct sensor_device_attribute_2
+		*sensor_attr_2 = to_sensor_dev_attr_2(attr);
+	int ix = sensor_attr_2->index;
+	int fn = sensor_attr_2->nr;
+	int res;
+
+	switch (fn) {
+	case SYS_ZONE_AUTO_CHANNELS_TEMP:
+		/* check config2 for non-standard temp-to-zone mapping */
+		if ((ix == 1) && (data->config2 & 0x02)) {
+			res = 4;
+		} else {
+			res = 1 << ix;
+		}
+		break;
+	case SYS_ZONE_AUTO_POINT1_TEMP_HYST:
+		res = TEMP_FROM_REG(data->zone_low[ix], 8) -
+		      TEMP_HYST_FROM_REG(data->zone_hyst[ix == 2], ix);
+		break;
+	case SYS_ZONE_AUTO_POINT1_TEMP:
+		res = TEMP_FROM_REG(data->zone_low[ix], 8);
+		break;
+	case SYS_ZONE_AUTO_POINT2_TEMP:
+		/* pwm_freq holds the temp range bits in the upper nibble */
+		res = TEMP_FROM_REG(data->zone_low[ix], 8) +
+		      TEMP_RANGE_FROM_REG(data->pwm_freq[ix]);
+		break;
+	case SYS_ZONE_AUTO_POINT3_TEMP:
+		res = TEMP_FROM_REG(data->zone_abs[ix], 8);
+		break;
+	default:
+		res = 0;
+		dev_dbg(dev, "Unknown function %d.\n", fn);
+	}
+
+	return sprintf(buf, "%d\n", res);
+}
+
+static ssize_t set_zone(struct device *dev, struct device_attribute *attr,
+			const char *buf, size_t count)
+{
+	struct dme1737_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute_2
+		*sensor_attr_2 = to_sensor_dev_attr_2(attr);
+	int ix = sensor_attr_2->index;
+	int fn = sensor_attr_2->nr;
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	switch (fn) {
+	case SYS_ZONE_AUTO_POINT1_TEMP_HYST:
+		/* Refresh the cache */
+		data->zone_low[ix] = dme1737_read(data,
+						  DME1737_REG_ZONE_LOW(ix));
+		/* Modify the temp hyst value */
+		data->zone_hyst[ix == 2] = TEMP_HYST_TO_REG(
+					TEMP_FROM_REG(data->zone_low[ix], 8) -
+					val, ix, dme1737_read(data,
+					DME1737_REG_ZONE_HYST(ix == 2)));
+		dme1737_write(data, DME1737_REG_ZONE_HYST(ix == 2),
+			      data->zone_hyst[ix == 2]);
+		break;
+	case SYS_ZONE_AUTO_POINT1_TEMP:
+		data->zone_low[ix] = TEMP_TO_REG(val);
+		dme1737_write(data, DME1737_REG_ZONE_LOW(ix),
+			      data->zone_low[ix]);
+		break;
+	case SYS_ZONE_AUTO_POINT2_TEMP:
+		/* Refresh the cache */
+		data->zone_low[ix] = dme1737_read(data,
+						  DME1737_REG_ZONE_LOW(ix));
+		/* Modify the temp range value (which is stored in the upper
+		 * nibble of the pwm_freq register) */
+		data->pwm_freq[ix] = TEMP_RANGE_TO_REG(val -
+					TEMP_FROM_REG(data->zone_low[ix], 8),
+					dme1737_read(data,
+					DME1737_REG_PWM_FREQ(ix)));
+		dme1737_write(data, DME1737_REG_PWM_FREQ(ix),
+			      data->pwm_freq[ix]);
+		break;
+	case SYS_ZONE_AUTO_POINT3_TEMP:
+		data->zone_abs[ix] = TEMP_TO_REG(val);
+		dme1737_write(data, DME1737_REG_ZONE_ABS(ix),
+			      data->zone_abs[ix]);
+		break;
+	default:
+		dev_dbg(dev, "Unknown function %d.\n", fn);
+	}
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/* ---------------------------------------------------------------------
+ * Fan sysfs attributes
+ * ix = [0-5]
+ * --------------------------------------------------------------------- */
+
+#define SYS_FAN_INPUT	0
+#define SYS_FAN_MIN	1
+#define SYS_FAN_MAX	2
+#define SYS_FAN_ALARM	3
+#define SYS_FAN_TYPE	4
+
+static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	struct dme1737_data *data = dme1737_update_device(dev);
+	struct sensor_device_attribute_2
+		*sensor_attr_2 = to_sensor_dev_attr_2(attr);
+	int ix = sensor_attr_2->index;
+	int fn = sensor_attr_2->nr;
+	int res;
+
+	switch (fn) {
+	case SYS_FAN_INPUT:
+		res = FAN_FROM_REG(data->fan[ix],
+				   ix < 4 ? 0 :
+				   FAN_TPC_FROM_REG(data->fan_opt[ix]));
+		break;
+	case SYS_FAN_MIN:
+		res = FAN_FROM_REG(data->fan_min[ix],
+				   ix < 4 ? 0 :
+				   FAN_TPC_FROM_REG(data->fan_opt[ix]));
+		break;
+	case SYS_FAN_MAX:
+		/* only valid for fan[5-6] */
+		res = FAN_MAX_FROM_REG(data->fan_max[ix - 4]);
+		break;
+	case SYS_FAN_ALARM:
+		res = (data->alarms >> DME1737_BIT_ALARM_FAN[ix]) & 0x01;
+		break;
+	case SYS_FAN_TYPE:
+		/* only valid for fan[1-4] */
+		res = FAN_TYPE_FROM_REG(data->fan_opt[ix]);
+		break;
+	default:
+		res = 0;
+		dev_dbg(dev, "Unknown function %d.\n", fn);
+	}
+
+	return sprintf(buf, "%d\n", res);
+}
+
+static ssize_t set_fan(struct device *dev, struct device_attribute *attr,
+		       const char *buf, size_t count)
+{
+	struct dme1737_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute_2
+		*sensor_attr_2 = to_sensor_dev_attr_2(attr);
+	int ix = sensor_attr_2->index;
+	int fn = sensor_attr_2->nr;
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	switch (fn) {
+	case SYS_FAN_MIN:
+		if (ix < 4) {
+			data->fan_min[ix] = FAN_TO_REG(val, 0);
+		} else {
+			/* Refresh the cache */
+			data->fan_opt[ix] = dme1737_read(data,
+						DME1737_REG_FAN_OPT(ix));
+			/* Modify the fan min value */
+			data->fan_min[ix] = FAN_TO_REG(val,
+					FAN_TPC_FROM_REG(data->fan_opt[ix]));
+		}
+		dme1737_write(data, DME1737_REG_FAN_MIN(ix),
+			      data->fan_min[ix] & 0xff);
+		dme1737_write(data, DME1737_REG_FAN_MIN(ix) + 1,
+			      data->fan_min[ix] >> 8);
+		break;
+	case SYS_FAN_MAX:
+		/* Only valid for fan[5-6] */
+		data->fan_max[ix - 4] = FAN_MAX_TO_REG(val);
+		dme1737_write(data, DME1737_REG_FAN_MAX(ix),
+			      data->fan_max[ix - 4]);
+		break;
+	case SYS_FAN_TYPE:
+		/* Only valid for fan[1-4] */
+		if (!(val == 1 || val == 2 || val == 4)) {
+			count = -EINVAL;
+			dev_warn(dev, "Fan type value %ld not "
+				 "supported. Choose one of 1, 2, or 4.\n",
+				 val);
+			goto exit;
+		}
+		data->fan_opt[ix] = FAN_TYPE_TO_REG(val, dme1737_read(data,
+					DME1737_REG_FAN_OPT(ix)));
+		dme1737_write(data, DME1737_REG_FAN_OPT(ix),
+			      data->fan_opt[ix]);
+		break;
+	default:
+		dev_dbg(dev, "Unknown function %d.\n", fn);
+	}
+exit:
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/* ---------------------------------------------------------------------
+ * PWM sysfs attributes
+ * ix = [0-4]
+ * --------------------------------------------------------------------- */
+
+#define SYS_PWM				0
+#define SYS_PWM_FREQ			1
+#define SYS_PWM_ENABLE			2
+#define SYS_PWM_RAMP_RATE		3
+#define SYS_PWM_AUTO_CHANNELS_ZONE	4
+#define SYS_PWM_AUTO_PWM_MIN		5
+#define SYS_PWM_AUTO_POINT1_PWM		6
+#define SYS_PWM_AUTO_POINT2_PWM		7
+
+static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	struct dme1737_data *data = dme1737_update_device(dev);
+	struct sensor_device_attribute_2
+		*sensor_attr_2 = to_sensor_dev_attr_2(attr);
+	int ix = sensor_attr_2->index;
+	int fn = sensor_attr_2->nr;
+	int res;
+
+	switch (fn) {
+	case SYS_PWM:
+		if (PWM_EN_FROM_REG(data->pwm_config[ix]) == 0) {
+			res = 255;
+		} else {
+			res = data->pwm[ix];
+		}
+		break;
+	case SYS_PWM_FREQ:
+		res = PWM_FREQ_FROM_REG(data->pwm_freq[ix]);
+		break;
+	case SYS_PWM_ENABLE:
+		if (ix > 3) {
+			res = 1; /* pwm[5-6] hard-wired to manual mode */
+		} else {
+			res = PWM_EN_FROM_REG(data->pwm_config[ix]);
+		}
+		break;
+	case SYS_PWM_RAMP_RATE:
+		/* Only valid for pwm[1-3] */
+		res = PWM_RR_FROM_REG(data->pwm_rr[ix > 0], ix);
+		break;
+	case SYS_PWM_AUTO_CHANNELS_ZONE:
+		/* Only valid for pwm[1-3] */
+		if (PWM_EN_FROM_REG(data->pwm_config[ix]) == 2) {
+			res = PWM_ACZ_FROM_REG(data->pwm_config[ix]);
+		} else {
+			res = data->pwm_acz[ix];
+		}
+		break;
+	case SYS_PWM_AUTO_PWM_MIN:
+		/* Only valid for pwm[1-3] */
+		if (PWM_OFF_FROM_REG(data->pwm_rr[0], ix)) {
+			res = data->pwm_min[ix];
+		} else {
+			res = 0;
+		}
+		break;
+	case SYS_PWM_AUTO_POINT1_PWM:
+		/* Only valid for pwm[1-3] */
+		res = data->pwm_min[ix];
+		break;
+	case SYS_PWM_AUTO_POINT2_PWM:
+		/* Only valid for pwm[1-3] */
+		res = 255; /* hard-wired */
+		break;
+	default:
+		res = 0;
+		dev_dbg(dev, "Unknown function %d.\n", fn);
+	}
+
+	return sprintf(buf, "%d\n", res);
+}
+
+static struct attribute *dme1737_pwm_chmod_attr[];
+static void dme1737_chmod_file(struct device*, struct attribute*, mode_t);
+
+static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
+		       const char *buf, size_t count)
+{
+	struct dme1737_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute_2
+		*sensor_attr_2 = to_sensor_dev_attr_2(attr);
+	int ix = sensor_attr_2->index;
+	int fn = sensor_attr_2->nr;
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	switch (fn) {
+	case SYS_PWM:
+		data->pwm[ix] = SENSORS_LIMIT(val, 0, 255);
+		dme1737_write(data, DME1737_REG_PWM(ix), data->pwm[ix]);
+		break;
+	case SYS_PWM_FREQ:
+		data->pwm_freq[ix] = PWM_FREQ_TO_REG(val, dme1737_read(data,
+						DME1737_REG_PWM_FREQ(ix)));
+		dme1737_write(data, DME1737_REG_PWM_FREQ(ix),
+			      data->pwm_freq[ix]);
+		break;
+	case SYS_PWM_ENABLE:
+		/* Only valid for pwm[1-3] */
+		if (val < 0 || val > 2) {
+			count = -EINVAL;
+			dev_warn(dev, "PWM enable %ld not "
+				 "supported. Choose one of 0, 1, or 2.\n",
+				 val);
+			goto exit;
+		}
+		/* Refresh the cache */
+		data->pwm_config[ix] = dme1737_read(data,
+						DME1737_REG_PWM_CONFIG(ix));
+		if (val == PWM_EN_FROM_REG(data->pwm_config[ix])) {
+			/* Bail out if no change */
+			goto exit;
+		}
+		/* Do some housekeeping if we are currently in auto mode */
+		if (PWM_EN_FROM_REG(data->pwm_config[ix]) == 2) {
+			/* Save the current zone channel assignment */
+			data->pwm_acz[ix] = PWM_ACZ_FROM_REG(
+							data->pwm_config[ix]);
+			/* Save the current ramp rate state and disable it */
+			data->pwm_rr[ix > 0] = dme1737_read(data,
+						DME1737_REG_PWM_RR(ix > 0));
+			data->pwm_rr_en &= ~(1 << ix);
+			if (PWM_RR_EN_FROM_REG(data->pwm_rr[ix > 0], ix)) {
+				data->pwm_rr_en |= (1 << ix);
+				data->pwm_rr[ix > 0] = PWM_RR_EN_TO_REG(0, ix,
+							data->pwm_rr[ix > 0]);
+				dme1737_write(data,
+					      DME1737_REG_PWM_RR(ix > 0),
+					      data->pwm_rr[ix > 0]);
+			}
+		}
+		/* Set the new PWM mode */
+		switch (val) {
+		case 0:
+			/* Change permissions of pwm[ix] to read-only */
+			dme1737_chmod_file(dev, dme1737_pwm_chmod_attr[ix],
+					   S_IRUGO);
+			/* Turn fan fully on */
+			data->pwm_config[ix] = PWM_EN_TO_REG(0,
+							data->pwm_config[ix]);
+			dme1737_write(data, DME1737_REG_PWM_CONFIG(ix),
+				      data->pwm_config[ix]);
+			break;
+		case 1:
+			/* Turn on manual mode */
+			data->pwm_config[ix] = PWM_EN_TO_REG(1,
+							data->pwm_config[ix]);
+			dme1737_write(data, DME1737_REG_PWM_CONFIG(ix),
+				      data->pwm_config[ix]);
+			/* Change permissions of pwm[ix] to read-writeable */
+			dme1737_chmod_file(dev, dme1737_pwm_chmod_attr[ix],
+					   S_IRUGO | S_IWUSR);
+			break;
+		case 2:
+			/* Change permissions of pwm[ix] to read-only */
+			dme1737_chmod_file(dev, dme1737_pwm_chmod_attr[ix],
+					   S_IRUGO);
+			/* Turn on auto mode using the saved zone channel
+			 * assignment */
+			data->pwm_config[ix] = PWM_ACZ_TO_REG(
+							data->pwm_acz[ix],
+							data->pwm_config[ix]);
+			dme1737_write(data, DME1737_REG_PWM_CONFIG(ix),
+				      data->pwm_config[ix]);
+			/* Enable PWM ramp rate if previously enabled */
+			if (data->pwm_rr_en & (1 << ix)) {
+				data->pwm_rr[ix > 0] = PWM_RR_EN_TO_REG(1, ix,
+						dme1737_read(data,
+						DME1737_REG_PWM_RR(ix > 0)));
+				dme1737_write(data,
+					      DME1737_REG_PWM_RR(ix > 0),
+					      data->pwm_rr[ix > 0]);
+			}
+			break;
+		}
+		break;
+	case SYS_PWM_RAMP_RATE:
+		/* Only valid for pwm[1-3] */
+		/* Refresh the cache */
+		data->pwm_config[ix] = dme1737_read(data,
+						DME1737_REG_PWM_CONFIG(ix));
+		data->pwm_rr[ix > 0] = dme1737_read(data,
+						DME1737_REG_PWM_RR(ix > 0));
+		/* Set the ramp rate value */
+		if (val > 0) {
+			data->pwm_rr[ix > 0] = PWM_RR_TO_REG(val, ix,
+							data->pwm_rr[ix > 0]);
+		}
+		/* Enable/disable the feature only if the associated PWM
+		 * output is in automatic mode. */
+		if (PWM_EN_FROM_REG(data->pwm_config[ix]) == 2) {
+			data->pwm_rr[ix > 0] = PWM_RR_EN_TO_REG(val > 0, ix,
+							data->pwm_rr[ix > 0]);
+		}
+		dme1737_write(data, DME1737_REG_PWM_RR(ix > 0),
+			      data->pwm_rr[ix > 0]);
+		break;
+	case SYS_PWM_AUTO_CHANNELS_ZONE:
+		/* Only valid for pwm[1-3] */
+		if (!(val == 1 || val == 2 || val == 4 ||
+		      val == 6 || val == 7)) {
+			count = -EINVAL;
+			dev_warn(dev, "PWM auto channels zone %ld "
+				 "not supported. Choose one of 1, 2, 4, 6, "
+				 "or 7.\n", val);
+			goto exit;
+		}
+		/* Refresh the cache */
+		data->pwm_config[ix] = dme1737_read(data,
+						DME1737_REG_PWM_CONFIG(ix));
+		if (PWM_EN_FROM_REG(data->pwm_config[ix]) == 2) {
+			/* PWM is already in auto mode so update the temp
+			 * channel assignment */
+			data->pwm_config[ix] = PWM_ACZ_TO_REG(val,
+						data->pwm_config[ix]);
+			dme1737_write(data, DME1737_REG_PWM_CONFIG(ix),
+				      data->pwm_config[ix]);
+		} else {
+			/* PWM is not in auto mode so we save the temp
+			 * channel assignment for later use */
+			data->pwm_acz[ix] = val;
+		}
+		break;
+	case SYS_PWM_AUTO_PWM_MIN:
+		/* Only valid for pwm[1-3] */
+		/* Refresh the cache */
+		data->pwm_min[ix] = dme1737_read(data,
+						DME1737_REG_PWM_MIN(ix));
+		/* There are only 2 values supported for the auto_pwm_min
+		 * value: 0 or auto_point1_pwm. So if the temperature drops
+		 * below the auto_point1_temp_hyst value, the fan either turns
+		 * off or runs at auto_point1_pwm duty-cycle. */
+		if (val > ((data->pwm_min[ix] + 1) / 2)) {
+			data->pwm_rr[0] = PWM_OFF_TO_REG(1, ix,
+						dme1737_read(data,
+						DME1737_REG_PWM_RR(0)));
+		} else {
+			data->pwm_rr[0] = PWM_OFF_TO_REG(0, ix,
+						dme1737_read(data,
+						DME1737_REG_PWM_RR(0)));
+		}
+		dme1737_write(data, DME1737_REG_PWM_RR(0),
+			      data->pwm_rr[0]);
+		break;
+	case SYS_PWM_AUTO_POINT1_PWM:
+		/* Only valid for pwm[1-3] */
+		data->pwm_min[ix] = SENSORS_LIMIT(val, 0, 255);
+		dme1737_write(data, DME1737_REG_PWM_MIN(ix),
+			      data->pwm_min[ix]);
+		break;
+	default:
+		dev_dbg(dev, "Unknown function %d.\n", fn);
+	}
+exit:
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/* ---------------------------------------------------------------------
+ * Miscellaneous sysfs attributes
+ * --------------------------------------------------------------------- */
+
+static ssize_t show_vrm(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct dme1737_data *data = i2c_get_clientdata(client);
+
+	return sprintf(buf, "%d\n", data->vrm);
+}
+
+static ssize_t set_vrm(struct device *dev, struct device_attribute *attr,
+		       const char *buf, size_t count)
+{
+	struct dme1737_data *data = dev_get_drvdata(dev);
+	long val = simple_strtol(buf, NULL, 10);
+
+	data->vrm = val;
+	return count;
+}
+
+static ssize_t show_vid(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	struct dme1737_data *data = dme1737_update_device(dev);
+
+	return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
+}
+
+static ssize_t show_name(struct device *dev, struct device_attribute *attr,
+			 char *buf)
+{
+	struct dme1737_data *data = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%s\n", data->name);
+}
+
+/* ---------------------------------------------------------------------
+ * Sysfs device attribute defines and structs
+ * --------------------------------------------------------------------- */
+
+/* Voltages 0-6 */
+
+#define SENSOR_DEVICE_ATTR_IN(ix) \
+static SENSOR_DEVICE_ATTR_2(in##ix##_input, S_IRUGO, \
+	show_in, NULL, SYS_IN_INPUT, ix); \
+static SENSOR_DEVICE_ATTR_2(in##ix##_min, S_IRUGO | S_IWUSR, \
+	show_in, set_in, SYS_IN_MIN, ix); \
+static SENSOR_DEVICE_ATTR_2(in##ix##_max, S_IRUGO | S_IWUSR, \
+	show_in, set_in, SYS_IN_MAX, ix); \
+static SENSOR_DEVICE_ATTR_2(in##ix##_alarm, S_IRUGO, \
+	show_in, NULL, SYS_IN_ALARM, ix)
+
+SENSOR_DEVICE_ATTR_IN(0);
+SENSOR_DEVICE_ATTR_IN(1);
+SENSOR_DEVICE_ATTR_IN(2);
+SENSOR_DEVICE_ATTR_IN(3);
+SENSOR_DEVICE_ATTR_IN(4);
+SENSOR_DEVICE_ATTR_IN(5);
+SENSOR_DEVICE_ATTR_IN(6);
+
+/* Temperatures 1-3 */
+
+#define SENSOR_DEVICE_ATTR_TEMP(ix) \
+static SENSOR_DEVICE_ATTR_2(temp##ix##_input, S_IRUGO, \
+	show_temp, NULL, SYS_TEMP_INPUT, ix-1); \
+static SENSOR_DEVICE_ATTR_2(temp##ix##_min, S_IRUGO | S_IWUSR, \
+	show_temp, set_temp, SYS_TEMP_MIN, ix-1); \
+static SENSOR_DEVICE_ATTR_2(temp##ix##_max, S_IRUGO | S_IWUSR, \
+	show_temp, set_temp, SYS_TEMP_MAX, ix-1); \
+static SENSOR_DEVICE_ATTR_2(temp##ix##_offset, S_IRUGO, \
+	show_temp, set_temp, SYS_TEMP_OFFSET, ix-1); \
+static SENSOR_DEVICE_ATTR_2(temp##ix##_alarm, S_IRUGO, \
+	show_temp, NULL, SYS_TEMP_ALARM, ix-1); \
+static SENSOR_DEVICE_ATTR_2(temp##ix##_fault, S_IRUGO, \
+	show_temp, NULL, SYS_TEMP_FAULT, ix-1)
+
+SENSOR_DEVICE_ATTR_TEMP(1);
+SENSOR_DEVICE_ATTR_TEMP(2);
+SENSOR_DEVICE_ATTR_TEMP(3);
+
+/* Zones 1-3 */
+
+#define SENSOR_DEVICE_ATTR_ZONE(ix) \
+static SENSOR_DEVICE_ATTR_2(zone##ix##_auto_channels_temp, S_IRUGO, \
+	show_zone, NULL, SYS_ZONE_AUTO_CHANNELS_TEMP, ix-1); \
+static SENSOR_DEVICE_ATTR_2(zone##ix##_auto_point1_temp_hyst, S_IRUGO, \
+	show_zone, set_zone, SYS_ZONE_AUTO_POINT1_TEMP_HYST, ix-1); \
+static SENSOR_DEVICE_ATTR_2(zone##ix##_auto_point1_temp, S_IRUGO, \
+	show_zone, set_zone, SYS_ZONE_AUTO_POINT1_TEMP, ix-1); \
+static SENSOR_DEVICE_ATTR_2(zone##ix##_auto_point2_temp, S_IRUGO, \
+	show_zone, set_zone, SYS_ZONE_AUTO_POINT2_TEMP, ix-1); \
+static SENSOR_DEVICE_ATTR_2(zone##ix##_auto_point3_temp, S_IRUGO, \
+	show_zone, set_zone, SYS_ZONE_AUTO_POINT3_TEMP, ix-1)
+
+SENSOR_DEVICE_ATTR_ZONE(1);
+SENSOR_DEVICE_ATTR_ZONE(2);
+SENSOR_DEVICE_ATTR_ZONE(3);
+
+/* Fans 1-4 */
+
+#define SENSOR_DEVICE_ATTR_FAN_1TO4(ix) \
+static SENSOR_DEVICE_ATTR_2(fan##ix##_input, S_IRUGO, \
+	show_fan, NULL, SYS_FAN_INPUT, ix-1); \
+static SENSOR_DEVICE_ATTR_2(fan##ix##_min, S_IRUGO | S_IWUSR, \
+	show_fan, set_fan, SYS_FAN_MIN, ix-1); \
+static SENSOR_DEVICE_ATTR_2(fan##ix##_alarm, S_IRUGO, \
+	show_fan, NULL, SYS_FAN_ALARM, ix-1); \
+static SENSOR_DEVICE_ATTR_2(fan##ix##_type, S_IRUGO | S_IWUSR, \
+	show_fan, set_fan, SYS_FAN_TYPE, ix-1)
+
+SENSOR_DEVICE_ATTR_FAN_1TO4(1);
+SENSOR_DEVICE_ATTR_FAN_1TO4(2);
+SENSOR_DEVICE_ATTR_FAN_1TO4(3);
+SENSOR_DEVICE_ATTR_FAN_1TO4(4);
+
+/* Fans 5-6 */
+
+#define SENSOR_DEVICE_ATTR_FAN_5TO6(ix) \
+static SENSOR_DEVICE_ATTR_2(fan##ix##_input, S_IRUGO, \
+	show_fan, NULL, SYS_FAN_INPUT, ix-1); \
+static SENSOR_DEVICE_ATTR_2(fan##ix##_min, S_IRUGO | S_IWUSR, \
+	show_fan, set_fan, SYS_FAN_MIN, ix-1); \
+static SENSOR_DEVICE_ATTR_2(fan##ix##_alarm, S_IRUGO, \
+	show_fan, NULL, SYS_FAN_ALARM, ix-1); \
+static SENSOR_DEVICE_ATTR_2(fan##ix##_max, S_IRUGO | S_IWUSR, \
+	show_fan, set_fan, SYS_FAN_MAX, ix-1)
+
+SENSOR_DEVICE_ATTR_FAN_5TO6(5);
+SENSOR_DEVICE_ATTR_FAN_5TO6(6);
+
+/* PWMs 1-3 */
+
+#define SENSOR_DEVICE_ATTR_PWM_1TO3(ix) \
+static SENSOR_DEVICE_ATTR_2(pwm##ix, S_IRUGO, \
+	show_pwm, set_pwm, SYS_PWM, ix-1); \
+static SENSOR_DEVICE_ATTR_2(pwm##ix##_freq, S_IRUGO, \
+	show_pwm, set_pwm, SYS_PWM_FREQ, ix-1); \
+static SENSOR_DEVICE_ATTR_2(pwm##ix##_enable, S_IRUGO, \
+	show_pwm, set_pwm, SYS_PWM_ENABLE, ix-1); \
+static SENSOR_DEVICE_ATTR_2(pwm##ix##_ramp_rate, S_IRUGO, \
+	show_pwm, set_pwm, SYS_PWM_RAMP_RATE, ix-1); \
+static SENSOR_DEVICE_ATTR_2(pwm##ix##_auto_channels_zone, S_IRUGO, \
+	show_pwm, set_pwm, SYS_PWM_AUTO_CHANNELS_ZONE, ix-1); \
+static SENSOR_DEVICE_ATTR_2(pwm##ix##_auto_pwm_min, S_IRUGO, \
+	show_pwm, set_pwm, SYS_PWM_AUTO_PWM_MIN, ix-1); \
+static SENSOR_DEVICE_ATTR_2(pwm##ix##_auto_point1_pwm, S_IRUGO, \
+	show_pwm, set_pwm, SYS_PWM_AUTO_POINT1_PWM, ix-1); \
+static SENSOR_DEVICE_ATTR_2(pwm##ix##_auto_point2_pwm, S_IRUGO, \
+	show_pwm, NULL, SYS_PWM_AUTO_POINT2_PWM, ix-1)
+
+SENSOR_DEVICE_ATTR_PWM_1TO3(1);
+SENSOR_DEVICE_ATTR_PWM_1TO3(2);
+SENSOR_DEVICE_ATTR_PWM_1TO3(3);
+
+/* PWMs 5-6 */
+
+#define SENSOR_DEVICE_ATTR_PWM_5TO6(ix) \
+static SENSOR_DEVICE_ATTR_2(pwm##ix, S_IRUGO, \
+	show_pwm, set_pwm, SYS_PWM, ix-1); \
+static SENSOR_DEVICE_ATTR_2(pwm##ix##_freq, S_IRUGO, \
+	show_pwm, set_pwm, SYS_PWM_FREQ, ix-1); \
+static SENSOR_DEVICE_ATTR_2(pwm##ix##_enable, S_IRUGO, \
+	show_pwm, NULL, SYS_PWM_ENABLE, ix-1)
+
+SENSOR_DEVICE_ATTR_PWM_5TO6(5);
+SENSOR_DEVICE_ATTR_PWM_5TO6(6);
+
+/* Misc */
+
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);   /* for ISA devices */
+
+/* This struct holds all the attributes that are always present and need to be
+ * created unconditionally. The attributes that need modification of their
+ * permissions are created read-only and write permissions are added or removed
+ * on the fly when required */
+static struct attribute *dme1737_attr[] ={
+	/* Voltages */
+	&sensor_dev_attr_in0_input.dev_attr.attr,
+	&sensor_dev_attr_in0_min.dev_attr.attr,
+	&sensor_dev_attr_in0_max.dev_attr.attr,
+	&sensor_dev_attr_in0_alarm.dev_attr.attr,
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in1_min.dev_attr.attr,
+	&sensor_dev_attr_in1_max.dev_attr.attr,
+	&sensor_dev_attr_in1_alarm.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in2_min.dev_attr.attr,
+	&sensor_dev_attr_in2_max.dev_attr.attr,
+	&sensor_dev_attr_in2_alarm.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in3_min.dev_attr.attr,
+	&sensor_dev_attr_in3_max.dev_attr.attr,
+	&sensor_dev_attr_in3_alarm.dev_attr.attr,
+	&sensor_dev_attr_in4_input.dev_attr.attr,
+	&sensor_dev_attr_in4_min.dev_attr.attr,
+	&sensor_dev_attr_in4_max.dev_attr.attr,
+	&sensor_dev_attr_in4_alarm.dev_attr.attr,
+	&sensor_dev_attr_in5_input.dev_attr.attr,
+	&sensor_dev_attr_in5_min.dev_attr.attr,
+	&sensor_dev_attr_in5_max.dev_attr.attr,
+	&sensor_dev_attr_in5_alarm.dev_attr.attr,
+	&sensor_dev_attr_in6_input.dev_attr.attr,
+	&sensor_dev_attr_in6_min.dev_attr.attr,
+	&sensor_dev_attr_in6_max.dev_attr.attr,
+	&sensor_dev_attr_in6_alarm.dev_attr.attr,
+	/* Temperatures */
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_fault.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_min.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_fault.dev_attr.attr,
+	&sensor_dev_attr_temp3_input.dev_attr.attr,
+	&sensor_dev_attr_temp3_min.dev_attr.attr,
+	&sensor_dev_attr_temp3_max.dev_attr.attr,
+	&sensor_dev_attr_temp3_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp3_fault.dev_attr.attr,
+	/* Zones */
+	&sensor_dev_attr_zone1_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_zone1_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_zone1_auto_point3_temp.dev_attr.attr,
+	&sensor_dev_attr_zone1_auto_channels_temp.dev_attr.attr,
+	&sensor_dev_attr_zone2_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_zone2_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_zone2_auto_point3_temp.dev_attr.attr,
+	&sensor_dev_attr_zone2_auto_channels_temp.dev_attr.attr,
+	&sensor_dev_attr_zone3_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_zone3_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_zone3_auto_point3_temp.dev_attr.attr,
+	&sensor_dev_attr_zone3_auto_channels_temp.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group dme1737_group = {
+	.attrs = dme1737_attr,
+};
+
+/* The following struct holds misc attributes, which are not available in all
+ * chips. Their creation depends on the chip type which is determined during
+ * module load. */
+static struct attribute *dme1737_misc_attr[] = {
+	/* Temperatures */
+	&sensor_dev_attr_temp1_offset.dev_attr.attr,
+	&sensor_dev_attr_temp2_offset.dev_attr.attr,
+	&sensor_dev_attr_temp3_offset.dev_attr.attr,
+	/* Zones */
+	&sensor_dev_attr_zone1_auto_point1_temp_hyst.dev_attr.attr,
+	&sensor_dev_attr_zone2_auto_point1_temp_hyst.dev_attr.attr,
+	&sensor_dev_attr_zone3_auto_point1_temp_hyst.dev_attr.attr,
+	/* Misc */
+	&dev_attr_vrm.attr,
+	&dev_attr_cpu0_vid.attr,
+	NULL
+};
+
+static const struct attribute_group dme1737_misc_group = {
+	.attrs = dme1737_misc_attr,
+};
+
+/* The following structs hold the PWM attributes, some of which are optional.
+ * Their creation depends on the chip configuration which is determined during
+ * module load. */
+static struct attribute *dme1737_pwm1_attr[] = {
+	&sensor_dev_attr_pwm1.dev_attr.attr,
+	&sensor_dev_attr_pwm1_freq.dev_attr.attr,
+	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm1_ramp_rate.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_channels_zone.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
+	NULL
+};
+static struct attribute *dme1737_pwm2_attr[] = {
+	&sensor_dev_attr_pwm2.dev_attr.attr,
+	&sensor_dev_attr_pwm2_freq.dev_attr.attr,
+	&sensor_dev_attr_pwm2_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm2_ramp_rate.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_channels_zone.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
+	NULL
+};
+static struct attribute *dme1737_pwm3_attr[] = {
+	&sensor_dev_attr_pwm3.dev_attr.attr,
+	&sensor_dev_attr_pwm3_freq.dev_attr.attr,
+	&sensor_dev_attr_pwm3_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm3_ramp_rate.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_channels_zone.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
+	NULL
+};
+static struct attribute *dme1737_pwm5_attr[] = {
+	&sensor_dev_attr_pwm5.dev_attr.attr,
+	&sensor_dev_attr_pwm5_freq.dev_attr.attr,
+	&sensor_dev_attr_pwm5_enable.dev_attr.attr,
+	NULL
+};
+static struct attribute *dme1737_pwm6_attr[] = {
+	&sensor_dev_attr_pwm6.dev_attr.attr,
+	&sensor_dev_attr_pwm6_freq.dev_attr.attr,
+	&sensor_dev_attr_pwm6_enable.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group dme1737_pwm_group[] = {
+	{ .attrs = dme1737_pwm1_attr },
+	{ .attrs = dme1737_pwm2_attr },
+	{ .attrs = dme1737_pwm3_attr },
+	{ .attrs = NULL },
+	{ .attrs = dme1737_pwm5_attr },
+	{ .attrs = dme1737_pwm6_attr },
+};
+
+/* The following struct holds misc PWM attributes, which are not available in
+ * all chips. Their creation depends on the chip type which is determined
+ * during module load. */
+static struct attribute *dme1737_pwm_misc_attr[] = {
+	&sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr,
+};
+
+/* The following structs hold the fan attributes, some of which are optional.
+ * Their creation depends on the chip configuration which is determined during
+ * module load. */
+static struct attribute *dme1737_fan1_attr[] = {
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan1_type.dev_attr.attr,
+	NULL
+};
+static struct attribute *dme1737_fan2_attr[] = {
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan2_type.dev_attr.attr,
+	NULL
+};
+static struct attribute *dme1737_fan3_attr[] = {
+	&sensor_dev_attr_fan3_input.dev_attr.attr,
+	&sensor_dev_attr_fan3_min.dev_attr.attr,
+	&sensor_dev_attr_fan3_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan3_type.dev_attr.attr,
+	NULL
+};
+static struct attribute *dme1737_fan4_attr[] = {
+	&sensor_dev_attr_fan4_input.dev_attr.attr,
+	&sensor_dev_attr_fan4_min.dev_attr.attr,
+	&sensor_dev_attr_fan4_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan4_type.dev_attr.attr,
+	NULL
+};
+static struct attribute *dme1737_fan5_attr[] = {
+	&sensor_dev_attr_fan5_input.dev_attr.attr,
+	&sensor_dev_attr_fan5_min.dev_attr.attr,
+	&sensor_dev_attr_fan5_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan5_max.dev_attr.attr,
+	NULL
+};
+static struct attribute *dme1737_fan6_attr[] = {
+	&sensor_dev_attr_fan6_input.dev_attr.attr,
+	&sensor_dev_attr_fan6_min.dev_attr.attr,
+	&sensor_dev_attr_fan6_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan6_max.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group dme1737_fan_group[] = {
+	{ .attrs = dme1737_fan1_attr },
+	{ .attrs = dme1737_fan2_attr },
+	{ .attrs = dme1737_fan3_attr },
+	{ .attrs = dme1737_fan4_attr },
+	{ .attrs = dme1737_fan5_attr },
+	{ .attrs = dme1737_fan6_attr },
+};
+
+/* The permissions of the following zone attributes are changed to read-
+ * writeable if the chip is *not* locked. Otherwise they stay read-only. */
+static struct attribute *dme1737_zone_chmod_attr[] = {
+	&sensor_dev_attr_zone1_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_zone1_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_zone1_auto_point3_temp.dev_attr.attr,
+	&sensor_dev_attr_zone2_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_zone2_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_zone2_auto_point3_temp.dev_attr.attr,
+	&sensor_dev_attr_zone3_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_zone3_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_zone3_auto_point3_temp.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group dme1737_zone_chmod_group = {
+	.attrs = dme1737_zone_chmod_attr,
+};
+
+/* The permissions of the following PWM attributes are changed to read-
+ * writeable if the chip is *not* locked and the respective PWM is available.
+ * Otherwise they stay read-only. */
+static struct attribute *dme1737_pwm1_chmod_attr[] = {
+	&sensor_dev_attr_pwm1_freq.dev_attr.attr,
+	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm1_ramp_rate.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_channels_zone.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
+	NULL
+};
+static struct attribute *dme1737_pwm2_chmod_attr[] = {
+	&sensor_dev_attr_pwm2_freq.dev_attr.attr,
+	&sensor_dev_attr_pwm2_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm2_ramp_rate.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_channels_zone.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
+	NULL
+};
+static struct attribute *dme1737_pwm3_chmod_attr[] = {
+	&sensor_dev_attr_pwm3_freq.dev_attr.attr,
+	&sensor_dev_attr_pwm3_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm3_ramp_rate.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_channels_zone.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
+	NULL
+};
+static struct attribute *dme1737_pwm5_chmod_attr[] = {
+	&sensor_dev_attr_pwm5.dev_attr.attr,
+	&sensor_dev_attr_pwm5_freq.dev_attr.attr,
+	NULL
+};
+static struct attribute *dme1737_pwm6_chmod_attr[] = {
+	&sensor_dev_attr_pwm6.dev_attr.attr,
+	&sensor_dev_attr_pwm6_freq.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group dme1737_pwm_chmod_group[] = {
+	{ .attrs = dme1737_pwm1_chmod_attr },
+	{ .attrs = dme1737_pwm2_chmod_attr },
+	{ .attrs = dme1737_pwm3_chmod_attr },
+	{ .attrs = NULL },
+	{ .attrs = dme1737_pwm5_chmod_attr },
+	{ .attrs = dme1737_pwm6_chmod_attr },
+};
+
+/* Pwm[1-3] are read-writeable if the associated pwm is in manual mode and the
+ * chip is not locked. Otherwise they are read-only. */
+static struct attribute *dme1737_pwm_chmod_attr[] = {
+	&sensor_dev_attr_pwm1.dev_attr.attr,
+	&sensor_dev_attr_pwm2.dev_attr.attr,
+	&sensor_dev_attr_pwm3.dev_attr.attr,
+};
+
+/* ---------------------------------------------------------------------
+ * Super-IO functions
+ * --------------------------------------------------------------------- */
+
+static inline void dme1737_sio_enter(int sio_cip)
+{
+	outb(0x55, sio_cip);
+}
+
+static inline void dme1737_sio_exit(int sio_cip)
+{
+	outb(0xaa, sio_cip);
+}
+
+static inline int dme1737_sio_inb(int sio_cip, int reg)
+{
+	outb(reg, sio_cip);
+	return inb(sio_cip + 1);
+}
+
+static inline void dme1737_sio_outb(int sio_cip, int reg, int val)
+{
+	outb(reg, sio_cip);
+	outb(val, sio_cip + 1);
+}
+
+/* ---------------------------------------------------------------------
+ * Device initialization
+ * --------------------------------------------------------------------- */
+
+static int dme1737_i2c_get_features(int, struct dme1737_data*);
+
+static void dme1737_chmod_file(struct device *dev,
+			       struct attribute *attr, mode_t mode)
+{
+	if (sysfs_chmod_file(&dev->kobj, attr, mode)) {
+		dev_warn(dev, "Failed to change permissions of %s.\n",
+			 attr->name);
+	}
+}
+
+static void dme1737_chmod_group(struct device *dev,
+				const struct attribute_group *group,
+				mode_t mode)
+{
+	struct attribute **attr;
+
+	for (attr = group->attrs; *attr; attr++) {
+		dme1737_chmod_file(dev, *attr, mode);
+	}
+}
+
+static void dme1737_remove_files(struct device *dev)
+{
+	struct dme1737_data *data = dev_get_drvdata(dev);
+	int ix;
+
+	for (ix = 0; ix < ARRAY_SIZE(dme1737_fan_group); ix++) {
+		if (data->has_fan & (1 << ix)) {
+			sysfs_remove_group(&dev->kobj,
+					   &dme1737_fan_group[ix]);
+		}
+	}
+
+	for (ix = 0; ix < ARRAY_SIZE(dme1737_pwm_group); ix++) {
+		if (data->has_pwm & (1 << ix)) {
+			sysfs_remove_group(&dev->kobj,
+					   &dme1737_pwm_group[ix]);
+			if (data->type != sch5027 && ix < 3) {
+				sysfs_remove_file(&dev->kobj,
+						  dme1737_pwm_misc_attr[ix]);
+			}
+		}
+	}
+
+	if (data->type != sch5027) {
+		sysfs_remove_group(&dev->kobj, &dme1737_misc_group);
+	}
+
+	sysfs_remove_group(&dev->kobj, &dme1737_group);
+
+	if (!data->client) {
+		sysfs_remove_file(&dev->kobj, &dev_attr_name.attr);
+	}
+}
+
+static int dme1737_create_files(struct device *dev)
+{
+	struct dme1737_data *data = dev_get_drvdata(dev);
+	int err, ix;
+
+	/* Create a name attribute for ISA devices */
+	if (!data->client &&
+	    (err = sysfs_create_file(&dev->kobj, &dev_attr_name.attr))) {
+		goto exit;
+	}
+
+	/* Create standard sysfs attributes */
+	if ((err = sysfs_create_group(&dev->kobj, &dme1737_group))) {
+		goto exit_remove;
+	}
+
+	/* Create misc sysfs attributes */
+	if ((data->type != sch5027) &&
+	    (err = sysfs_create_group(&dev->kobj,
+				      &dme1737_misc_group))) {
+		goto exit_remove;
+	}
+
+	/* Create fan sysfs attributes */
+	for (ix = 0; ix < ARRAY_SIZE(dme1737_fan_group); ix++) {
+		if (data->has_fan & (1 << ix)) {
+			if ((err = sysfs_create_group(&dev->kobj,
+						&dme1737_fan_group[ix]))) {
+				goto exit_remove;
+			}
+		}
+	}
+
+	/* Create PWM sysfs attributes */
+	for (ix = 0; ix < ARRAY_SIZE(dme1737_pwm_group); ix++) {
+		if (data->has_pwm & (1 << ix)) {
+			if ((err = sysfs_create_group(&dev->kobj,
+						&dme1737_pwm_group[ix]))) {
+				goto exit_remove;
+			}
+			if (data->type != sch5027 && ix < 3 &&
+			    (err = sysfs_create_file(&dev->kobj,
+						dme1737_pwm_misc_attr[ix]))) {
+				goto exit_remove;
+			}
+		}
+	}
+
+	/* Inform if the device is locked. Otherwise change the permissions of
+	 * selected attributes from read-only to read-writeable. */
+	if (data->config & 0x02) {
+		dev_info(dev, "Device is locked. Some attributes "
+			 "will be read-only.\n");
+	} else {
+		/* Change permissions of zone sysfs attributes */
+		dme1737_chmod_group(dev, &dme1737_zone_chmod_group,
+				    S_IRUGO | S_IWUSR);
+
+		/* Change permissions of misc sysfs attributes */
+		if (data->type != sch5027) {
+			dme1737_chmod_group(dev, &dme1737_misc_group,
+					    S_IRUGO | S_IWUSR);
+		}
+
+		/* Change permissions of PWM sysfs attributes */
+		for (ix = 0; ix < ARRAY_SIZE(dme1737_pwm_chmod_group); ix++) {
+			if (data->has_pwm & (1 << ix)) {
+				dme1737_chmod_group(dev,
+						&dme1737_pwm_chmod_group[ix],
+						S_IRUGO | S_IWUSR);
+				if (data->type != sch5027 && ix < 3) {
+					dme1737_chmod_file(dev,
+						dme1737_pwm_misc_attr[ix],
+						S_IRUGO | S_IWUSR);
+				}
+			}
+		}
+
+		/* Change permissions of pwm[1-3] if in manual mode */
+		for (ix = 0; ix < 3; ix++) {
+			if ((data->has_pwm & (1 << ix)) &&
+			    (PWM_EN_FROM_REG(data->pwm_config[ix]) == 1)) {
+				dme1737_chmod_file(dev,
+						dme1737_pwm_chmod_attr[ix],
+						S_IRUGO | S_IWUSR);
+			}
+		}
+	}
+
+	return 0;
+
+exit_remove:
+	dme1737_remove_files(dev);
+exit:
+	return err;
+}
+
+static int dme1737_init_device(struct device *dev)
+{
+	struct dme1737_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	int ix;
+	u8 reg;
+
+	/* Point to the right nominal voltages array */
+	data->in_nominal = IN_NOMINAL(data->type);
+
+	data->config = dme1737_read(data, DME1737_REG_CONFIG);
+	/* Inform if part is not monitoring/started */
+	if (!(data->config & 0x01)) {
+		if (!force_start) {
+			dev_err(dev, "Device is not monitoring. "
+				"Use the force_start load parameter to "
+				"override.\n");
+			return -EFAULT;
+		}
+
+		/* Force monitoring */
+		data->config |= 0x01;
+		dme1737_write(data, DME1737_REG_CONFIG, data->config);
+	}
+	/* Inform if part is not ready */
+	if (!(data->config & 0x04)) {
+		dev_err(dev, "Device is not ready.\n");
+		return -EFAULT;
+	}
+
+	/* Determine which optional fan and pwm features are enabled/present */
+	if (client) {   /* I2C chip */
+		data->config2 = dme1737_read(data, DME1737_REG_CONFIG2);
+		/* Check if optional fan3 input is enabled */
+		if (data->config2 & 0x04) {
+			data->has_fan |= (1 << 2);
+		}
+
+		/* Fan4 and pwm3 are only available if the client's I2C address
+		 * is the default 0x2e. Otherwise the I/Os associated with
+		 * these functions are used for addr enable/select. */
+		if (client->addr == 0x2e) {
+			data->has_fan |= (1 << 3);
+			data->has_pwm |= (1 << 2);
+		}
+
+		/* Determine which of the optional fan[5-6] and pwm[5-6]
+		 * features are enabled. For this, we need to query the runtime
+		 * registers through the Super-IO LPC interface. Try both
+		 * config ports 0x2e and 0x4e. */
+		if (dme1737_i2c_get_features(0x2e, data) &&
+		    dme1737_i2c_get_features(0x4e, data)) {
+			dev_warn(dev, "Failed to query Super-IO for optional "
+				 "features.\n");
+		}
+	} else {   /* ISA chip */
+		/* Fan3 and pwm3 are always available. Fan[4-5] and pwm[5-6]
+		 * don't exist in the ISA chip. */
+		data->has_fan |= (1 << 2);
+		data->has_pwm |= (1 << 2);
+	}
+
+	/* Fan1, fan2, pwm1, and pwm2 are always present */
+	data->has_fan |= 0x03;
+	data->has_pwm |= 0x03;
+
+	dev_info(dev, "Optional features: pwm3=%s, pwm5=%s, pwm6=%s, "
+		 "fan3=%s, fan4=%s, fan5=%s, fan6=%s.\n",
+		 (data->has_pwm & (1 << 2)) ? "yes" : "no",
+		 (data->has_pwm & (1 << 4)) ? "yes" : "no",
+		 (data->has_pwm & (1 << 5)) ? "yes" : "no",
+		 (data->has_fan & (1 << 2)) ? "yes" : "no",
+		 (data->has_fan & (1 << 3)) ? "yes" : "no",
+		 (data->has_fan & (1 << 4)) ? "yes" : "no",
+		 (data->has_fan & (1 << 5)) ? "yes" : "no");
+
+	reg = dme1737_read(data, DME1737_REG_TACH_PWM);
+	/* Inform if fan-to-pwm mapping differs from the default */
+	if (client && reg != 0xa4) {   /* I2C chip */
+		dev_warn(dev, "Non-standard fan to pwm mapping: "
+			 "fan1->pwm%d, fan2->pwm%d, fan3->pwm%d, "
+			 "fan4->pwm%d. Please report to the driver "
+			 "maintainer.\n",
+			 (reg & 0x03) + 1, ((reg >> 2) & 0x03) + 1,
+			 ((reg >> 4) & 0x03) + 1, ((reg >> 6) & 0x03) + 1);
+	} else if (!client && reg != 0x24) {   /* ISA chip */
+		dev_warn(dev, "Non-standard fan to pwm mapping: "
+			 "fan1->pwm%d, fan2->pwm%d, fan3->pwm%d. "
+			 "Please report to the driver maintainer.\n",
+			 (reg & 0x03) + 1, ((reg >> 2) & 0x03) + 1,
+			 ((reg >> 4) & 0x03) + 1);
+	}
+
+	/* Switch pwm[1-3] to manual mode if they are currently disabled and
+	 * set the duty-cycles to 0% (which is identical to the PWMs being
+	 * disabled). */
+	if (!(data->config & 0x02)) {
+		for (ix = 0; ix < 3; ix++) {
+			data->pwm_config[ix] = dme1737_read(data,
+						DME1737_REG_PWM_CONFIG(ix));
+			if ((data->has_pwm & (1 << ix)) &&
+			    (PWM_EN_FROM_REG(data->pwm_config[ix]) == -1)) {
+				dev_info(dev, "Switching pwm%d to "
+					 "manual mode.\n", ix + 1);
+				data->pwm_config[ix] = PWM_EN_TO_REG(1,
+							data->pwm_config[ix]);
+				dme1737_write(data, DME1737_REG_PWM(ix), 0);
+				dme1737_write(data,
+					      DME1737_REG_PWM_CONFIG(ix),
+					      data->pwm_config[ix]);
+			}
+		}
+	}
+
+	/* Initialize the default PWM auto channels zone (acz) assignments */
+	data->pwm_acz[0] = 1;	/* pwm1 -> zone1 */
+	data->pwm_acz[1] = 2;	/* pwm2 -> zone2 */
+	data->pwm_acz[2] = 4;	/* pwm3 -> zone3 */
+
+	/* Set VRM */
+	if (data->type != sch5027) {
+		data->vrm = vid_which_vrm();
+	}
+
+	return 0;
+}
+
+/* ---------------------------------------------------------------------
+ * I2C device detection and registration
+ * --------------------------------------------------------------------- */
+
+static struct i2c_driver dme1737_i2c_driver;
+
+static int dme1737_i2c_get_features(int sio_cip, struct dme1737_data *data)
+{
+	int err = 0, reg;
+	u16 addr;
+
+	dme1737_sio_enter(sio_cip);
+
+	/* Check device ID
+	 * The DME1737 can return either 0x78 or 0x77 as its device ID.
+	 * The SCH5027 returns 0x89 as its device ID. */
+	reg = force_id ? force_id : dme1737_sio_inb(sio_cip, 0x20);
+	if (!(reg == 0x77 || reg == 0x78 || reg == 0x89)) {
+		err = -ENODEV;
+		goto exit;
+	}
+
+	/* Select logical device A (runtime registers) */
+	dme1737_sio_outb(sio_cip, 0x07, 0x0a);
+
+	/* Get the base address of the runtime registers */
+	if (!(addr = (dme1737_sio_inb(sio_cip, 0x60) << 8) |
+		      dme1737_sio_inb(sio_cip, 0x61))) {
+		err = -ENODEV;
+		goto exit;
+	}
+
+	/* Read the runtime registers to determine which optional features
+	 * are enabled and available. Bits [3:2] of registers 0x43-0x46 are set
+	 * to '10' if the respective feature is enabled. */
+	if ((inb(addr + 0x43) & 0x0c) == 0x08) { /* fan6 */
+		data->has_fan |= (1 << 5);
+	}
+	if ((inb(addr + 0x44) & 0x0c) == 0x08) { /* pwm6 */
+		data->has_pwm |= (1 << 5);
+	}
+	if ((inb(addr + 0x45) & 0x0c) == 0x08) { /* fan5 */
+		data->has_fan |= (1 << 4);
+	}
+	if ((inb(addr + 0x46) & 0x0c) == 0x08) { /* pwm5 */
+		data->has_pwm |= (1 << 4);
+	}
+
+exit:
+	dme1737_sio_exit(sio_cip);
+
+	return err;
+}
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int dme1737_i2c_detect(struct i2c_client *client, int kind,
+			      struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+	struct device *dev = &adapter->dev;
+	u8 company, verstep = 0;
+	const char *name;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
+		return -ENODEV;
+	}
+
+	/* A negative kind means that the driver was loaded with no force
+	 * parameter (default), so we must identify the chip. */
+	if (kind < 0) {
+		company = i2c_smbus_read_byte_data(client, DME1737_REG_COMPANY);
+		verstep = i2c_smbus_read_byte_data(client, DME1737_REG_VERSTEP);
+
+		if (company == DME1737_COMPANY_SMSC &&
+		    (verstep & DME1737_VERSTEP_MASK) == DME1737_VERSTEP) {
+			kind = dme1737;
+		} else if (company == DME1737_COMPANY_SMSC &&
+			   verstep == SCH5027_VERSTEP) {
+			kind = sch5027;
+		} else {
+			return -ENODEV;
+		}
+	}
+
+	if (kind == sch5027) {
+		name = "sch5027";
+	} else {
+		kind = dme1737;
+		name = "dme1737";
+	}
+
+	dev_info(dev, "Found a %s chip at 0x%02x (rev 0x%02x).\n",
+		 kind == sch5027 ? "SCH5027" : "DME1737", client->addr,
+		 verstep);
+	strlcpy(info->type, name, I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int dme1737_i2c_probe(struct i2c_client *client,
+			     const struct i2c_device_id *id)
+{
+	struct dme1737_data *data;
+	struct device *dev = &client->dev;
+	int err;
+
+	data = kzalloc(sizeof(struct dme1737_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	data->type = id->driver_data;
+	data->client = client;
+	data->name = client->name;
+	mutex_init(&data->update_lock);
+
+	/* Initialize the DME1737 chip */
+	if ((err = dme1737_init_device(dev))) {
+		dev_err(dev, "Failed to initialize device.\n");
+		goto exit_kfree;
+	}
+
+	/* Create sysfs files */
+	if ((err = dme1737_create_files(dev))) {
+		dev_err(dev, "Failed to create sysfs files.\n");
+		goto exit_kfree;
+	}
+
+	/* Register device */
+	data->hwmon_dev = hwmon_device_register(dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		dev_err(dev, "Failed to register device.\n");
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	return 0;
+
+exit_remove:
+	dme1737_remove_files(dev);
+exit_kfree:
+	kfree(data);
+exit:
+	return err;
+}
+
+static int dme1737_i2c_remove(struct i2c_client *client)
+{
+	struct dme1737_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	dme1737_remove_files(&client->dev);
+
+	kfree(data);
+	return 0;
+}
+
+static const struct i2c_device_id dme1737_id[] = {
+	{ "dme1737", dme1737 },
+	{ "sch5027", sch5027 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, dme1737_id);
+
+static struct i2c_driver dme1737_i2c_driver = {
+	.class = I2C_CLASS_HWMON,
+	.driver = {
+		.name = "dme1737",
+	},
+	.probe = dme1737_i2c_probe,
+	.remove = dme1737_i2c_remove,
+	.id_table = dme1737_id,
+	.detect = dme1737_i2c_detect,
+	.address_data = &addr_data,
+};
+
+/* ---------------------------------------------------------------------
+ * ISA device detection and registration
+ * --------------------------------------------------------------------- */
+
+static int __init dme1737_isa_detect(int sio_cip, unsigned short *addr)
+{
+	int err = 0, reg;
+	unsigned short base_addr;
+
+	dme1737_sio_enter(sio_cip);
+
+	/* Check device ID
+	 * We currently know about SCH3112 (0x7c), SCH3114 (0x7d), and
+	 * SCH3116 (0x7f). */
+	reg = force_id ? force_id : dme1737_sio_inb(sio_cip, 0x20);
+	if (!(reg == 0x7c || reg == 0x7d || reg == 0x7f)) {
+		err = -ENODEV;
+		goto exit;
+	}
+
+	/* Select logical device A (runtime registers) */
+	dme1737_sio_outb(sio_cip, 0x07, 0x0a);
+
+	/* Get the base address of the runtime registers */
+	if (!(base_addr = (dme1737_sio_inb(sio_cip, 0x60) << 8) |
+			   dme1737_sio_inb(sio_cip, 0x61))) {
+		printk(KERN_ERR "dme1737: Base address not set.\n");
+		err = -ENODEV;
+		goto exit;
+	}
+
+	/* Access to the hwmon registers is through an index/data register
+	 * pair located at offset 0x70/0x71. */
+	*addr = base_addr + 0x70;
+
+exit:
+	dme1737_sio_exit(sio_cip);
+	return err;
+}
+
+static int __init dme1737_isa_device_add(unsigned short addr)
+{
+	struct resource res = {
+		.start	= addr,
+		.end	= addr + DME1737_EXTENT - 1,
+		.name	= "dme1737",
+		.flags	= IORESOURCE_IO,
+	};
+	int err;
+
+	if (!(pdev = platform_device_alloc("dme1737", addr))) {
+		printk(KERN_ERR "dme1737: Failed to allocate device.\n");
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	if ((err = platform_device_add_resources(pdev, &res, 1))) {
+		printk(KERN_ERR "dme1737: Failed to add device resource "
+		       "(err = %d).\n", err);
+		goto exit_device_put;
+	}
+
+	if ((err = platform_device_add(pdev))) {
+		printk(KERN_ERR "dme1737: Failed to add device (err = %d).\n",
+		       err);
+		goto exit_device_put;
+	}
+
+	return 0;
+
+exit_device_put:
+	platform_device_put(pdev);
+	pdev = NULL;
+exit:
+	return err;
+}
+
+static int __devinit dme1737_isa_probe(struct platform_device *pdev)
+{
+	u8 company, device;
+	struct resource *res;
+	struct dme1737_data *data;
+	struct device *dev = &pdev->dev;
+	int err;
+
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	if (!request_region(res->start, DME1737_EXTENT, "dme1737")) {
+		dev_err(dev, "Failed to request region 0x%04x-0x%04x.\n",
+			(unsigned short)res->start,
+			(unsigned short)res->start + DME1737_EXTENT - 1);
+                err = -EBUSY;
+                goto exit;
+        }
+
+	if (!(data = kzalloc(sizeof(struct dme1737_data), GFP_KERNEL))) {
+		err = -ENOMEM;
+		goto exit_release_region;
+	}
+
+	data->addr = res->start;
+	platform_set_drvdata(pdev, data);
+
+	/* Skip chip detection if module is loaded with force_id parameter */
+	if (!force_id) {
+		company = dme1737_read(data, DME1737_REG_COMPANY);
+		device = dme1737_read(data, DME1737_REG_DEVICE);
+
+		if (!((company == DME1737_COMPANY_SMSC) &&
+		      (device == SCH311X_DEVICE))) {
+			err = -ENODEV;
+			goto exit_kfree;
+		}
+	}
+	data->type = sch311x;
+
+	/* Fill in the remaining client fields and initialize the mutex */
+	data->name = "sch311x";
+	mutex_init(&data->update_lock);
+
+	dev_info(dev, "Found a SCH311x chip at 0x%04x\n", data->addr);
+
+	/* Initialize the chip */
+	if ((err = dme1737_init_device(dev))) {
+		dev_err(dev, "Failed to initialize device.\n");
+		goto exit_kfree;
+	}
+
+	/* Create sysfs files */
+	if ((err = dme1737_create_files(dev))) {
+		dev_err(dev, "Failed to create sysfs files.\n");
+		goto exit_kfree;
+	}
+
+	/* Register device */
+	data->hwmon_dev = hwmon_device_register(dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		dev_err(dev, "Failed to register device.\n");
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove_files;
+	}
+
+	return 0;
+
+exit_remove_files:
+	dme1737_remove_files(dev);
+exit_kfree:
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+exit_release_region:
+	release_region(res->start, DME1737_EXTENT);
+exit:
+	return err;
+}
+
+static int __devexit dme1737_isa_remove(struct platform_device *pdev)
+{
+	struct dme1737_data *data = platform_get_drvdata(pdev);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	dme1737_remove_files(&pdev->dev);
+	release_region(data->addr, DME1737_EXTENT);
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+
+	return 0;
+}
+
+static struct platform_driver dme1737_isa_driver = {
+	.driver = {
+		.owner = THIS_MODULE,
+		.name = "dme1737",
+	},
+	.probe = dme1737_isa_probe,
+	.remove = __devexit_p(dme1737_isa_remove),
+};
+
+/* ---------------------------------------------------------------------
+ * Module initialization and cleanup
+ * --------------------------------------------------------------------- */
+
+static int __init dme1737_init(void)
+{
+	int err;
+	unsigned short addr;
+
+	if ((err = i2c_add_driver(&dme1737_i2c_driver))) {
+		goto exit;
+	}
+
+	if (dme1737_isa_detect(0x2e, &addr) &&
+	    dme1737_isa_detect(0x4e, &addr) &&
+	    (!probe_all_addr ||
+	     (dme1737_isa_detect(0x162e, &addr) &&
+	      dme1737_isa_detect(0x164e, &addr)))) {
+		/* Return 0 if we didn't find an ISA device */
+		return 0;
+	}
+
+	if ((err = platform_driver_register(&dme1737_isa_driver))) {
+		goto exit_del_i2c_driver;
+	}
+
+	/* Sets global pdev as a side effect */
+	if ((err = dme1737_isa_device_add(addr))) {
+		goto exit_del_isa_driver;
+	}
+
+	return 0;
+
+exit_del_isa_driver:
+	platform_driver_unregister(&dme1737_isa_driver);
+exit_del_i2c_driver:
+	i2c_del_driver(&dme1737_i2c_driver);
+exit:
+	return err;
+}
+
+static void __exit dme1737_exit(void)
+{
+	if (pdev) {
+		platform_device_unregister(pdev);
+		platform_driver_unregister(&dme1737_isa_driver);
+	}
+
+	i2c_del_driver(&dme1737_i2c_driver);
+}
+
+MODULE_AUTHOR("Juerg Haefliger <juergh@gmail.com>");
+MODULE_DESCRIPTION("DME1737 sensors");
+MODULE_LICENSE("GPL");
+
+module_init(dme1737_init);
+module_exit(dme1737_exit);
diff --git a/drivers/hwmon/ds1621.c b/drivers/hwmon/ds1621.c
new file mode 100644
index 0000000..7415381
--- /dev/null
+++ b/drivers/hwmon/ds1621.c
@@ -0,0 +1,353 @@
+/*
+    ds1621.c - Part of lm_sensors, Linux kernel modules for hardware
+             monitoring
+    Christian W. Zuckschwerdt  <zany@triq.net>  2000-11-23
+    based on lm75.c by Frodo Looijaard <frodol@dds.nl>
+    Ported to Linux 2.6 by Aurelien Jarno <aurelien@aurel32.net> with 
+    the help of Jean Delvare <khali@linux-fr.org>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+#include "lm75.h"
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, 0x4c,
+					0x4d, 0x4e, 0x4f, I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_1(ds1621);
+static int polarity = -1;
+module_param(polarity, int, 0);
+MODULE_PARM_DESC(polarity, "Output's polarity: 0 = active high, 1 = active low");
+
+/* Many DS1621 constants specified below */
+/* Config register used for detection         */
+/*  7    6    5    4    3    2    1    0      */
+/* |Done|THF |TLF |NVB | X  | X  |POL |1SHOT| */
+#define DS1621_REG_CONFIG_NVB		0x10
+#define DS1621_REG_CONFIG_POLARITY	0x02
+#define DS1621_REG_CONFIG_1SHOT		0x01
+#define DS1621_REG_CONFIG_DONE		0x80
+
+/* The DS1621 registers */
+static const u8 DS1621_REG_TEMP[3] = {
+	0xAA,		/* input, word, RO */
+	0xA2,		/* min, word, RW */
+	0xA1,		/* max, word, RW */
+};
+#define DS1621_REG_CONF			0xAC /* byte, RW */
+#define DS1621_COM_START		0xEE /* no data */
+#define DS1621_COM_STOP			0x22 /* no data */
+
+/* The DS1621 configuration register */
+#define DS1621_ALARM_TEMP_HIGH		0x40
+#define DS1621_ALARM_TEMP_LOW		0x20
+
+/* Conversions */
+#define ALARMS_FROM_REG(val) ((val) & \
+                              (DS1621_ALARM_TEMP_HIGH | DS1621_ALARM_TEMP_LOW))
+
+/* Each client has this additional data */
+struct ds1621_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	char valid;			/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+
+	u16 temp[3];			/* Register values, word */
+	u8 conf;			/* Register encoding, combined */
+};
+
+static int ds1621_probe(struct i2c_client *client,
+			const struct i2c_device_id *id);
+static int ds1621_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info);
+static void ds1621_init_client(struct i2c_client *client);
+static int ds1621_remove(struct i2c_client *client);
+static struct ds1621_data *ds1621_update_client(struct device *dev);
+
+static const struct i2c_device_id ds1621_id[] = {
+	{ "ds1621", ds1621 },
+	{ "ds1625", ds1621 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, ds1621_id);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver ds1621_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "ds1621",
+	},
+	.probe		= ds1621_probe,
+	.remove		= ds1621_remove,
+	.id_table	= ds1621_id,
+	.detect		= ds1621_detect,
+	.address_data	= &addr_data,
+};
+
+/* All registers are word-sized, except for the configuration register.
+   DS1621 uses a high-byte first convention, which is exactly opposite to
+   the SMBus standard. */
+static int ds1621_read_value(struct i2c_client *client, u8 reg)
+{
+	if (reg == DS1621_REG_CONF)
+		return i2c_smbus_read_byte_data(client, reg);
+	else
+		return swab16(i2c_smbus_read_word_data(client, reg));
+}
+
+static int ds1621_write_value(struct i2c_client *client, u8 reg, u16 value)
+{
+	if (reg == DS1621_REG_CONF)
+		return i2c_smbus_write_byte_data(client, reg, value);
+	else
+		return i2c_smbus_write_word_data(client, reg, swab16(value));
+}
+
+static void ds1621_init_client(struct i2c_client *client)
+{
+	int reg = ds1621_read_value(client, DS1621_REG_CONF);
+	/* switch to continuous conversion mode */
+	reg &= ~ DS1621_REG_CONFIG_1SHOT;
+
+	/* setup output polarity */
+	if (polarity == 0)
+		reg &= ~DS1621_REG_CONFIG_POLARITY;
+	else if (polarity == 1)
+		reg |= DS1621_REG_CONFIG_POLARITY;
+	
+	ds1621_write_value(client, DS1621_REG_CONF, reg);
+	
+	/* start conversion */
+	i2c_smbus_write_byte(client, DS1621_COM_START);
+}
+
+static ssize_t show_temp(struct device *dev, struct device_attribute *da,
+			 char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct ds1621_data *data = ds1621_update_client(dev);
+	return sprintf(buf, "%d\n",
+		       LM75_TEMP_FROM_REG(data->temp[attr->index]));
+}
+
+static ssize_t set_temp(struct device *dev, struct device_attribute *da,
+			const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct ds1621_data *data = ds1621_update_client(dev);
+	u16 val = LM75_TEMP_TO_REG(simple_strtol(buf, NULL, 10));
+
+	mutex_lock(&data->update_lock);
+	data->temp[attr->index] = val;
+	ds1621_write_value(client, DS1621_REG_TEMP[attr->index],
+			   data->temp[attr->index]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_alarms(struct device *dev, struct device_attribute *da,
+			   char *buf)
+{
+	struct ds1621_data *data = ds1621_update_client(dev);
+	return sprintf(buf, "%d\n", ALARMS_FROM_REG(data->conf));
+}
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *da,
+			  char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct ds1621_data *data = ds1621_update_client(dev);
+	return sprintf(buf, "%d\n", !!(data->conf & attr->index));
+}
+
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp, set_temp, 1);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp, set_temp, 2);
+static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL,
+		DS1621_ALARM_TEMP_LOW);
+static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL,
+		DS1621_ALARM_TEMP_HIGH);
+
+static struct attribute *ds1621_attributes[] = {
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
+	&dev_attr_alarms.attr,
+	NULL
+};
+
+static const struct attribute_group ds1621_group = {
+	.attrs = ds1621_attributes,
+};
+
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int ds1621_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+	int conf, temp;
+	int i;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA 
+				     | I2C_FUNC_SMBUS_WORD_DATA 
+				     | I2C_FUNC_SMBUS_WRITE_BYTE))
+		return -ENODEV;
+
+	/* Now, we do the remaining detection. It is lousy. */
+	if (kind < 0) {
+		/* The NVB bit should be low if no EEPROM write has been 
+		   requested during the latest 10ms, which is highly 
+		   improbable in our case. */
+		conf = ds1621_read_value(client, DS1621_REG_CONF);
+		if (conf & DS1621_REG_CONFIG_NVB)
+			return -ENODEV;
+		/* The 7 lowest bits of a temperature should always be 0. */
+		for (i = 0; i < ARRAY_SIZE(DS1621_REG_TEMP); i++) {
+			temp = ds1621_read_value(client, DS1621_REG_TEMP[i]);
+			if (temp & 0x007f)
+				return -ENODEV;
+		}
+	}
+
+	strlcpy(info->type, "ds1621", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int ds1621_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	struct ds1621_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct ds1621_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
+
+	/* Initialize the DS1621 chip */
+	ds1621_init_client(client);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&client->dev.kobj, &ds1621_group)))
+		goto exit_free;
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove_files;
+	}
+
+	return 0;
+
+      exit_remove_files:
+	sysfs_remove_group(&client->dev.kobj, &ds1621_group);
+      exit_free:
+	kfree(data);
+      exit:
+	return err;
+}
+
+static int ds1621_remove(struct i2c_client *client)
+{
+	struct ds1621_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &ds1621_group);
+
+	kfree(data);
+
+	return 0;
+}
+
+
+static struct ds1621_data *ds1621_update_client(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct ds1621_data *data = i2c_get_clientdata(client);
+	u8 new_conf;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	    || !data->valid) {
+		int i;
+
+		dev_dbg(&client->dev, "Starting ds1621 update\n");
+
+		data->conf = ds1621_read_value(client, DS1621_REG_CONF);
+
+		for (i = 0; i < ARRAY_SIZE(data->temp); i++)
+			data->temp[i] = ds1621_read_value(client,
+							  DS1621_REG_TEMP[i]);
+
+		/* reset alarms if necessary */
+		new_conf = data->conf;
+		if (data->temp[0] > data->temp[1])	/* input > min */
+			new_conf &= ~DS1621_ALARM_TEMP_LOW;
+		if (data->temp[0] < data->temp[2])	/* input < max */
+			new_conf &= ~DS1621_ALARM_TEMP_HIGH;
+		if (data->conf != new_conf)
+			ds1621_write_value(client, DS1621_REG_CONF,
+					   new_conf);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init ds1621_init(void)
+{
+	return i2c_add_driver(&ds1621_driver);
+}
+
+static void __exit ds1621_exit(void)
+{
+	i2c_del_driver(&ds1621_driver);
+}
+
+
+MODULE_AUTHOR("Christian W. Zuckschwerdt <zany@triq.net>");
+MODULE_DESCRIPTION("DS1621 driver");
+MODULE_LICENSE("GPL");
+
+module_init(ds1621_init);
+module_exit(ds1621_exit);
diff --git a/drivers/hwmon/f71805f.c b/drivers/hwmon/f71805f.c
new file mode 100644
index 0000000..7a14a2d
--- /dev/null
+++ b/drivers/hwmon/f71805f.c
@@ -0,0 +1,1582 @@
+/*
+ * f71805f.c - driver for the Fintek F71805F/FG and F71872F/FG Super-I/O
+ *             chips integrated hardware monitoring features
+ * Copyright (C) 2005-2006  Jean Delvare <khali@linux-fr.org>
+ *
+ * The F71805F/FG is a LPC Super-I/O chip made by Fintek. It integrates
+ * complete hardware monitoring features: voltage, fan and temperature
+ * sensors, and manual and automatic fan speed control.
+ *
+ * The F71872F/FG is almost the same, with two more voltages monitored,
+ * and 6 VID inputs.
+ *
+ * The F71806F/FG is essentially the same as the F71872F/FG. It even has
+ * the same chip ID, so the driver can't differentiate between.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+#include <linux/ioport.h>
+#include <asm/io.h>
+
+static unsigned short force_id;
+module_param(force_id, ushort, 0);
+MODULE_PARM_DESC(force_id, "Override the detected device ID");
+
+static struct platform_device *pdev;
+
+#define DRVNAME "f71805f"
+enum kinds { f71805f, f71872f };
+
+/*
+ * Super-I/O constants and functions
+ */
+
+#define F71805F_LD_HWM		0x04
+
+#define SIO_REG_LDSEL		0x07	/* Logical device select */
+#define SIO_REG_DEVID		0x20	/* Device ID (2 bytes) */
+#define SIO_REG_DEVREV		0x22	/* Device revision */
+#define SIO_REG_MANID		0x23	/* Fintek ID (2 bytes) */
+#define SIO_REG_FNSEL1		0x29	/* Multi Function Select 1 (F71872F) */
+#define SIO_REG_ENABLE		0x30	/* Logical device enable */
+#define SIO_REG_ADDR		0x60	/* Logical device address (2 bytes) */
+
+#define SIO_FINTEK_ID		0x1934
+#define SIO_F71805F_ID		0x0406
+#define SIO_F71872F_ID		0x0341
+
+static inline int
+superio_inb(int base, int reg)
+{
+	outb(reg, base);
+	return inb(base + 1);
+}
+
+static int
+superio_inw(int base, int reg)
+{
+	int val;
+	outb(reg++, base);
+	val = inb(base + 1) << 8;
+	outb(reg, base);
+	val |= inb(base + 1);
+	return val;
+}
+
+static inline void
+superio_select(int base, int ld)
+{
+	outb(SIO_REG_LDSEL, base);
+	outb(ld, base + 1);
+}
+
+static inline void
+superio_enter(int base)
+{
+	outb(0x87, base);
+	outb(0x87, base);
+}
+
+static inline void
+superio_exit(int base)
+{
+	outb(0xaa, base);
+}
+
+/*
+ * ISA constants
+ */
+
+#define REGION_LENGTH		8
+#define ADDR_REG_OFFSET		5
+#define DATA_REG_OFFSET		6
+
+/*
+ * Registers
+ */
+
+/* in nr from 0 to 10 (8-bit values) */
+#define F71805F_REG_IN(nr)		(0x10 + (nr))
+#define F71805F_REG_IN_HIGH(nr)		((nr) < 10 ? 0x40 + 2 * (nr) : 0x2E)
+#define F71805F_REG_IN_LOW(nr)		((nr) < 10 ? 0x41 + 2 * (nr) : 0x2F)
+/* fan nr from 0 to 2 (12-bit values, two registers) */
+#define F71805F_REG_FAN(nr)		(0x20 + 2 * (nr))
+#define F71805F_REG_FAN_LOW(nr)		(0x28 + 2 * (nr))
+#define F71805F_REG_FAN_TARGET(nr)	(0x69 + 16 * (nr))
+#define F71805F_REG_FAN_CTRL(nr)	(0x60 + 16 * (nr))
+#define F71805F_REG_PWM_FREQ(nr)	(0x63 + 16 * (nr))
+#define F71805F_REG_PWM_DUTY(nr)	(0x6B + 16 * (nr))
+/* temp nr from 0 to 2 (8-bit values) */
+#define F71805F_REG_TEMP(nr)		(0x1B + (nr))
+#define F71805F_REG_TEMP_HIGH(nr)	(0x54 + 2 * (nr))
+#define F71805F_REG_TEMP_HYST(nr)	(0x55 + 2 * (nr))
+#define F71805F_REG_TEMP_MODE		0x01
+/* pwm/fan pwmnr from 0 to 2, auto point apnr from 0 to 2 */
+/* map Fintek numbers to our numbers as follows: 9->0, 5->1, 1->2 */
+#define F71805F_REG_PWM_AUTO_POINT_TEMP(pwmnr, apnr) \
+					(0xA0 + 0x10 * (pwmnr) + (2 - (apnr)))
+#define F71805F_REG_PWM_AUTO_POINT_FAN(pwmnr, apnr) \
+					(0xA4 + 0x10 * (pwmnr) + \
+						2 * (2 - (apnr)))
+
+#define F71805F_REG_START		0x00
+/* status nr from 0 to 2 */
+#define F71805F_REG_STATUS(nr)		(0x36 + (nr))
+
+/* individual register bits */
+#define FAN_CTRL_DC_MODE		0x10
+#define FAN_CTRL_LATCH_FULL		0x08
+#define FAN_CTRL_MODE_MASK		0x03
+#define FAN_CTRL_MODE_SPEED		0x00
+#define FAN_CTRL_MODE_TEMPERATURE	0x01
+#define FAN_CTRL_MODE_MANUAL		0x02
+
+/*
+ * Data structures and manipulation thereof
+ */
+
+struct f71805f_auto_point {
+	u8 temp[3];
+	u16 fan[3];
+};
+
+struct f71805f_data {
+	unsigned short addr;
+	const char *name;
+	struct device *hwmon_dev;
+
+	struct mutex update_lock;
+	char valid;		/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+	unsigned long last_limits;	/* In jiffies */
+
+	/* Register values */
+	u8 in[11];
+	u8 in_high[11];
+	u8 in_low[11];
+	u16 has_in;
+	u16 fan[3];
+	u16 fan_low[3];
+	u16 fan_target[3];
+	u8 fan_ctrl[3];
+	u8 pwm[3];
+	u8 pwm_freq[3];
+	u8 temp[3];
+	u8 temp_high[3];
+	u8 temp_hyst[3];
+	u8 temp_mode;
+	unsigned long alarms;
+	struct f71805f_auto_point auto_points[3];
+};
+
+struct f71805f_sio_data {
+	enum kinds kind;
+	u8 fnsel1;
+};
+
+static inline long in_from_reg(u8 reg)
+{
+	return (reg * 8);
+}
+
+/* The 2 least significant bits are not used */
+static inline u8 in_to_reg(long val)
+{
+	if (val <= 0)
+		return 0;
+	if (val >= 2016)
+		return 0xfc;
+	return (((val + 16) / 32) << 2);
+}
+
+/* in0 is downscaled by a factor 2 internally */
+static inline long in0_from_reg(u8 reg)
+{
+	return (reg * 16);
+}
+
+static inline u8 in0_to_reg(long val)
+{
+	if (val <= 0)
+		return 0;
+	if (val >= 4032)
+		return 0xfc;
+	return (((val + 32) / 64) << 2);
+}
+
+/* The 4 most significant bits are not used */
+static inline long fan_from_reg(u16 reg)
+{
+	reg &= 0xfff;
+	if (!reg || reg == 0xfff)
+		return 0;
+	return (1500000 / reg);
+}
+
+static inline u16 fan_to_reg(long rpm)
+{
+	/* If the low limit is set below what the chip can measure,
+	   store the largest possible 12-bit value in the registers,
+	   so that no alarm will ever trigger. */
+	if (rpm < 367)
+		return 0xfff;
+	return (1500000 / rpm);
+}
+
+static inline unsigned long pwm_freq_from_reg(u8 reg)
+{
+	unsigned long clock = (reg & 0x80) ? 48000000UL : 1000000UL;
+
+	reg &= 0x7f;
+	if (reg == 0)
+		reg++;
+	return clock / (reg << 8);
+}
+
+static inline u8 pwm_freq_to_reg(unsigned long val)
+{
+	if (val >= 187500)	/* The highest we can do */
+		return 0x80;
+	if (val >= 1475)	/* Use 48 MHz clock */
+		return 0x80 | (48000000UL / (val << 8));
+	if (val < 31)		/* The lowest we can do */
+		return 0x7f;
+	else			/* Use 1 MHz clock */
+		return 1000000UL / (val << 8);
+}
+
+static inline int pwm_mode_from_reg(u8 reg)
+{
+	return !(reg & FAN_CTRL_DC_MODE);
+}
+
+static inline long temp_from_reg(u8 reg)
+{
+	return (reg * 1000);
+}
+
+static inline u8 temp_to_reg(long val)
+{
+	if (val < 0)
+		val = 0;
+	else if (val > 1000 * 0xff)
+		val = 0xff;
+	return ((val + 500) / 1000);
+}
+
+/*
+ * Device I/O access
+ */
+
+/* Must be called with data->update_lock held, except during initialization */
+static u8 f71805f_read8(struct f71805f_data *data, u8 reg)
+{
+	outb(reg, data->addr + ADDR_REG_OFFSET);
+	return inb(data->addr + DATA_REG_OFFSET);
+}
+
+/* Must be called with data->update_lock held, except during initialization */
+static void f71805f_write8(struct f71805f_data *data, u8 reg, u8 val)
+{
+	outb(reg, data->addr + ADDR_REG_OFFSET);
+	outb(val, data->addr + DATA_REG_OFFSET);
+}
+
+/* It is important to read the MSB first, because doing so latches the
+   value of the LSB, so we are sure both bytes belong to the same value.
+   Must be called with data->update_lock held, except during initialization */
+static u16 f71805f_read16(struct f71805f_data *data, u8 reg)
+{
+	u16 val;
+
+	outb(reg, data->addr + ADDR_REG_OFFSET);
+	val = inb(data->addr + DATA_REG_OFFSET) << 8;
+	outb(++reg, data->addr + ADDR_REG_OFFSET);
+	val |= inb(data->addr + DATA_REG_OFFSET);
+
+	return val;
+}
+
+/* Must be called with data->update_lock held, except during initialization */
+static void f71805f_write16(struct f71805f_data *data, u8 reg, u16 val)
+{
+	outb(reg, data->addr + ADDR_REG_OFFSET);
+	outb(val >> 8, data->addr + DATA_REG_OFFSET);
+	outb(++reg, data->addr + ADDR_REG_OFFSET);
+	outb(val & 0xff, data->addr + DATA_REG_OFFSET);
+}
+
+static struct f71805f_data *f71805f_update_device(struct device *dev)
+{
+	struct f71805f_data *data = dev_get_drvdata(dev);
+	int nr, apnr;
+
+	mutex_lock(&data->update_lock);
+
+	/* Limit registers cache is refreshed after 60 seconds */
+	if (time_after(jiffies, data->last_updated + 60 * HZ)
+	 || !data->valid) {
+		for (nr = 0; nr < 11; nr++) {
+			if (!(data->has_in & (1 << nr)))
+				continue;
+			data->in_high[nr] = f71805f_read8(data,
+					    F71805F_REG_IN_HIGH(nr));
+			data->in_low[nr] = f71805f_read8(data,
+					   F71805F_REG_IN_LOW(nr));
+		}
+		for (nr = 0; nr < 3; nr++) {
+			data->fan_low[nr] = f71805f_read16(data,
+					    F71805F_REG_FAN_LOW(nr));
+			data->fan_target[nr] = f71805f_read16(data,
+					       F71805F_REG_FAN_TARGET(nr));
+			data->pwm_freq[nr] = f71805f_read8(data,
+					     F71805F_REG_PWM_FREQ(nr));
+		}
+		for (nr = 0; nr < 3; nr++) {
+			data->temp_high[nr] = f71805f_read8(data,
+					      F71805F_REG_TEMP_HIGH(nr));
+			data->temp_hyst[nr] = f71805f_read8(data,
+					      F71805F_REG_TEMP_HYST(nr));
+		}
+		data->temp_mode = f71805f_read8(data, F71805F_REG_TEMP_MODE);
+		for (nr = 0; nr < 3; nr++) {
+			for (apnr = 0; apnr < 3; apnr++) {
+				data->auto_points[nr].temp[apnr] =
+					f71805f_read8(data,
+					F71805F_REG_PWM_AUTO_POINT_TEMP(nr,
+									apnr));
+				data->auto_points[nr].fan[apnr] =
+					f71805f_read16(data,
+					F71805F_REG_PWM_AUTO_POINT_FAN(nr,
+								       apnr));
+			}
+		}
+
+		data->last_limits = jiffies;
+	}
+
+	/* Measurement registers cache is refreshed after 1 second */
+	if (time_after(jiffies, data->last_updated + HZ)
+	 || !data->valid) {
+		for (nr = 0; nr < 11; nr++) {
+			if (!(data->has_in & (1 << nr)))
+				continue;
+			data->in[nr] = f71805f_read8(data,
+				       F71805F_REG_IN(nr));
+		}
+		for (nr = 0; nr < 3; nr++) {
+			data->fan[nr] = f71805f_read16(data,
+					F71805F_REG_FAN(nr));
+			data->fan_ctrl[nr] = f71805f_read8(data,
+					     F71805F_REG_FAN_CTRL(nr));
+			data->pwm[nr] = f71805f_read8(data,
+					F71805F_REG_PWM_DUTY(nr));
+		}
+		for (nr = 0; nr < 3; nr++) {
+			data->temp[nr] = f71805f_read8(data,
+					 F71805F_REG_TEMP(nr));
+		}
+		data->alarms = f71805f_read8(data, F71805F_REG_STATUS(0))
+			+ (f71805f_read8(data, F71805F_REG_STATUS(1)) << 8)
+			+ (f71805f_read8(data, F71805F_REG_STATUS(2)) << 16);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+/*
+ * Sysfs interface
+ */
+
+static ssize_t show_in0(struct device *dev, struct device_attribute *devattr,
+			char *buf)
+{
+	struct f71805f_data *data = f71805f_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+
+	return sprintf(buf, "%ld\n", in0_from_reg(data->in[nr]));
+}
+
+static ssize_t show_in0_max(struct device *dev, struct device_attribute
+			    *devattr, char *buf)
+{
+	struct f71805f_data *data = f71805f_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+
+	return sprintf(buf, "%ld\n", in0_from_reg(data->in_high[nr]));
+}
+
+static ssize_t show_in0_min(struct device *dev, struct device_attribute
+			    *devattr, char *buf)
+{
+	struct f71805f_data *data = f71805f_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+
+	return sprintf(buf, "%ld\n", in0_from_reg(data->in_low[nr]));
+}
+
+static ssize_t set_in0_max(struct device *dev, struct device_attribute
+			   *devattr, const char *buf, size_t count)
+{
+	struct f71805f_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_high[nr] = in0_to_reg(val);
+	f71805f_write8(data, F71805F_REG_IN_HIGH(nr), data->in_high[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t set_in0_min(struct device *dev, struct device_attribute
+			   *devattr, const char *buf, size_t count)
+{
+	struct f71805f_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_low[nr] = in0_to_reg(val);
+	f71805f_write8(data, F71805F_REG_IN_LOW(nr), data->in_low[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t show_in(struct device *dev, struct device_attribute *devattr,
+		       char *buf)
+{
+	struct f71805f_data *data = f71805f_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+
+	return sprintf(buf, "%ld\n", in_from_reg(data->in[nr]));
+}
+
+static ssize_t show_in_max(struct device *dev, struct device_attribute
+			   *devattr, char *buf)
+{
+	struct f71805f_data *data = f71805f_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+
+	return sprintf(buf, "%ld\n", in_from_reg(data->in_high[nr]));
+}
+
+static ssize_t show_in_min(struct device *dev, struct device_attribute
+			   *devattr, char *buf)
+{
+	struct f71805f_data *data = f71805f_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+
+	return sprintf(buf, "%ld\n", in_from_reg(data->in_low[nr]));
+}
+
+static ssize_t set_in_max(struct device *dev, struct device_attribute
+			  *devattr, const char *buf, size_t count)
+{
+	struct f71805f_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_high[nr] = in_to_reg(val);
+	f71805f_write8(data, F71805F_REG_IN_HIGH(nr), data->in_high[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t set_in_min(struct device *dev, struct device_attribute
+			  *devattr, const char *buf, size_t count)
+{
+	struct f71805f_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_low[nr] = in_to_reg(val);
+	f71805f_write8(data, F71805F_REG_IN_LOW(nr), data->in_low[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
+			char *buf)
+{
+	struct f71805f_data *data = f71805f_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+
+	return sprintf(buf, "%ld\n", fan_from_reg(data->fan[nr]));
+}
+
+static ssize_t show_fan_min(struct device *dev, struct device_attribute
+			    *devattr, char *buf)
+{
+	struct f71805f_data *data = f71805f_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+
+	return sprintf(buf, "%ld\n", fan_from_reg(data->fan_low[nr]));
+}
+
+static ssize_t show_fan_target(struct device *dev, struct device_attribute
+			       *devattr, char *buf)
+{
+	struct f71805f_data *data = f71805f_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+
+	return sprintf(buf, "%ld\n", fan_from_reg(data->fan_target[nr]));
+}
+
+static ssize_t set_fan_min(struct device *dev, struct device_attribute
+			   *devattr, const char *buf, size_t count)
+{
+	struct f71805f_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->fan_low[nr] = fan_to_reg(val);
+	f71805f_write16(data, F71805F_REG_FAN_LOW(nr), data->fan_low[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t set_fan_target(struct device *dev, struct device_attribute
+			      *devattr, const char *buf, size_t count)
+{
+	struct f71805f_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->fan_target[nr] = fan_to_reg(val);
+	f71805f_write16(data, F71805F_REG_FAN_TARGET(nr),
+			data->fan_target[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr,
+			char *buf)
+{
+	struct f71805f_data *data = f71805f_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+
+	return sprintf(buf, "%d\n", (int)data->pwm[nr]);
+}
+
+static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
+			       *devattr, char *buf)
+{
+	struct f71805f_data *data = f71805f_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+	int mode;
+
+	switch (data->fan_ctrl[nr] & FAN_CTRL_MODE_MASK) {
+	case FAN_CTRL_MODE_SPEED:
+		mode = 3;
+		break;
+	case FAN_CTRL_MODE_TEMPERATURE:
+		mode = 2;
+		break;
+	default: /* MANUAL */
+		mode = 1;
+	}
+
+	return sprintf(buf, "%d\n", mode);
+}
+
+static ssize_t show_pwm_freq(struct device *dev, struct device_attribute
+			     *devattr, char *buf)
+{
+	struct f71805f_data *data = f71805f_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+
+	return sprintf(buf, "%lu\n", pwm_freq_from_reg(data->pwm_freq[nr]));
+}
+
+static ssize_t show_pwm_mode(struct device *dev, struct device_attribute
+			     *devattr, char *buf)
+{
+	struct f71805f_data *data = f71805f_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+
+	return sprintf(buf, "%d\n", pwm_mode_from_reg(data->fan_ctrl[nr]));
+}
+
+static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr,
+		       const char *buf, size_t count)
+{
+	struct f71805f_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	if (val > 255)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	data->pwm[nr] = val;
+	f71805f_write8(data, F71805F_REG_PWM_DUTY(nr), data->pwm[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static struct attribute *f71805f_attr_pwm[];
+
+static ssize_t set_pwm_enable(struct device *dev, struct device_attribute
+			      *devattr, const char *buf, size_t count)
+{
+	struct f71805f_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+	u8 reg;
+
+	if (val < 1 || val > 3)
+		return -EINVAL;
+
+	if (val > 1) { /* Automatic mode, user can't set PWM value */
+		if (sysfs_chmod_file(&dev->kobj, f71805f_attr_pwm[nr],
+				     S_IRUGO))
+			dev_dbg(dev, "chmod -w pwm%d failed\n", nr + 1);
+	}
+
+	mutex_lock(&data->update_lock);
+	reg = f71805f_read8(data, F71805F_REG_FAN_CTRL(nr))
+	    & ~FAN_CTRL_MODE_MASK;
+	switch (val) {
+	case 1:
+		reg |= FAN_CTRL_MODE_MANUAL;
+		break;
+	case 2:
+		reg |= FAN_CTRL_MODE_TEMPERATURE;
+		break;
+	case 3:
+		reg |= FAN_CTRL_MODE_SPEED;
+		break;
+	}
+	data->fan_ctrl[nr] = reg;
+	f71805f_write8(data, F71805F_REG_FAN_CTRL(nr), reg);
+	mutex_unlock(&data->update_lock);
+
+	if (val == 1) { /* Manual mode, user can set PWM value */
+		if (sysfs_chmod_file(&dev->kobj, f71805f_attr_pwm[nr],
+				     S_IRUGO | S_IWUSR))
+			dev_dbg(dev, "chmod +w pwm%d failed\n", nr + 1);
+	}
+
+	return count;
+}
+
+static ssize_t set_pwm_freq(struct device *dev, struct device_attribute
+			    *devattr, const char *buf, size_t count)
+{
+	struct f71805f_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->pwm_freq[nr] = pwm_freq_to_reg(val);
+	f71805f_write8(data, F71805F_REG_PWM_FREQ(nr), data->pwm_freq[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t show_pwm_auto_point_temp(struct device *dev,
+					struct device_attribute *devattr,
+					char* buf)
+{
+	struct f71805f_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	int pwmnr = attr->nr;
+	int apnr = attr->index;
+
+	return sprintf(buf, "%ld\n",
+		       temp_from_reg(data->auto_points[pwmnr].temp[apnr]));
+}
+
+static ssize_t set_pwm_auto_point_temp(struct device *dev,
+				       struct device_attribute *devattr,
+				       const char* buf, size_t count)
+{
+	struct f71805f_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	int pwmnr = attr->nr;
+	int apnr = attr->index;
+	unsigned long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->auto_points[pwmnr].temp[apnr] = temp_to_reg(val);
+	f71805f_write8(data, F71805F_REG_PWM_AUTO_POINT_TEMP(pwmnr, apnr),
+		       data->auto_points[pwmnr].temp[apnr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t show_pwm_auto_point_fan(struct device *dev,
+				       struct device_attribute *devattr,
+				       char* buf)
+{
+	struct f71805f_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	int pwmnr = attr->nr;
+	int apnr = attr->index;
+
+	return sprintf(buf, "%ld\n",
+		       fan_from_reg(data->auto_points[pwmnr].fan[apnr]));
+}
+
+static ssize_t set_pwm_auto_point_fan(struct device *dev,
+				      struct device_attribute *devattr,
+				      const char* buf, size_t count)
+{
+	struct f71805f_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	int pwmnr = attr->nr;
+	int apnr = attr->index;
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->auto_points[pwmnr].fan[apnr] = fan_to_reg(val);
+	f71805f_write16(data, F71805F_REG_PWM_AUTO_POINT_FAN(pwmnr, apnr),
+		        data->auto_points[pwmnr].fan[apnr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
+			 char *buf)
+{
+	struct f71805f_data *data = f71805f_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+
+	return sprintf(buf, "%ld\n", temp_from_reg(data->temp[nr]));
+}
+
+static ssize_t show_temp_max(struct device *dev, struct device_attribute
+			     *devattr, char *buf)
+{
+	struct f71805f_data *data = f71805f_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+
+	return sprintf(buf, "%ld\n", temp_from_reg(data->temp_high[nr]));
+}
+
+static ssize_t show_temp_hyst(struct device *dev, struct device_attribute
+			      *devattr, char *buf)
+{
+	struct f71805f_data *data = f71805f_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+
+	return sprintf(buf, "%ld\n", temp_from_reg(data->temp_hyst[nr]));
+}
+
+static ssize_t show_temp_type(struct device *dev, struct device_attribute
+			      *devattr, char *buf)
+{
+	struct f71805f_data *data = f71805f_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+
+	/* 3 is diode, 4 is thermistor */
+	return sprintf(buf, "%u\n", (data->temp_mode & (1 << nr)) ? 3 : 4);
+}
+
+static ssize_t set_temp_max(struct device *dev, struct device_attribute
+			    *devattr, const char *buf, size_t count)
+{
+	struct f71805f_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_high[nr] = temp_to_reg(val);
+	f71805f_write8(data, F71805F_REG_TEMP_HIGH(nr), data->temp_high[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t set_temp_hyst(struct device *dev, struct device_attribute
+			     *devattr, const char *buf, size_t count)
+{
+	struct f71805f_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_hyst[nr] = temp_to_reg(val);
+	f71805f_write8(data, F71805F_REG_TEMP_HYST(nr), data->temp_hyst[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t show_alarms_in(struct device *dev, struct device_attribute
+			      *devattr, char *buf)
+{
+	struct f71805f_data *data = f71805f_update_device(dev);
+
+	return sprintf(buf, "%lu\n", data->alarms & 0x7ff);
+}
+
+static ssize_t show_alarms_fan(struct device *dev, struct device_attribute
+			       *devattr, char *buf)
+{
+	struct f71805f_data *data = f71805f_update_device(dev);
+
+	return sprintf(buf, "%lu\n", (data->alarms >> 16) & 0x07);
+}
+
+static ssize_t show_alarms_temp(struct device *dev, struct device_attribute
+				*devattr, char *buf)
+{
+	struct f71805f_data *data = f71805f_update_device(dev);
+
+	return sprintf(buf, "%lu\n", (data->alarms >> 11) & 0x07);
+}
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute
+			  *devattr, char *buf)
+{
+	struct f71805f_data *data = f71805f_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int bitnr = attr->index;
+
+	return sprintf(buf, "%lu\n", (data->alarms >> bitnr) & 1);
+}
+
+static ssize_t show_name(struct device *dev, struct device_attribute
+			 *devattr, char *buf)
+{
+	struct f71805f_data *data = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%s\n", data->name);
+}
+
+static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in0, NULL, 0);
+static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO| S_IWUSR,
+			  show_in0_max, set_in0_max, 0);
+static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO| S_IWUSR,
+			  show_in0_min, set_in0_min, 0);
+static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
+static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO | S_IWUSR,
+			  show_in_max, set_in_max, 1);
+static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO | S_IWUSR,
+			  show_in_min, set_in_min, 1);
+static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
+static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO | S_IWUSR,
+			  show_in_max, set_in_max, 2);
+static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO | S_IWUSR,
+			  show_in_min, set_in_min, 2);
+static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
+static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO | S_IWUSR,
+			  show_in_max, set_in_max, 3);
+static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO | S_IWUSR,
+			  show_in_min, set_in_min, 3);
+static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
+static SENSOR_DEVICE_ATTR(in4_max, S_IRUGO | S_IWUSR,
+			  show_in_max, set_in_max, 4);
+static SENSOR_DEVICE_ATTR(in4_min, S_IRUGO | S_IWUSR,
+			  show_in_min, set_in_min, 4);
+static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
+static SENSOR_DEVICE_ATTR(in5_max, S_IRUGO | S_IWUSR,
+			  show_in_max, set_in_max, 5);
+static SENSOR_DEVICE_ATTR(in5_min, S_IRUGO | S_IWUSR,
+			  show_in_min, set_in_min, 5);
+static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
+static SENSOR_DEVICE_ATTR(in6_max, S_IRUGO | S_IWUSR,
+			  show_in_max, set_in_max, 6);
+static SENSOR_DEVICE_ATTR(in6_min, S_IRUGO | S_IWUSR,
+			  show_in_min, set_in_min, 6);
+static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
+static SENSOR_DEVICE_ATTR(in7_max, S_IRUGO | S_IWUSR,
+			  show_in_max, set_in_max, 7);
+static SENSOR_DEVICE_ATTR(in7_min, S_IRUGO | S_IWUSR,
+			  show_in_min, set_in_min, 7);
+static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
+static SENSOR_DEVICE_ATTR(in8_max, S_IRUGO | S_IWUSR,
+			  show_in_max, set_in_max, 8);
+static SENSOR_DEVICE_ATTR(in8_min, S_IRUGO | S_IWUSR,
+			  show_in_min, set_in_min, 8);
+static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, show_in0, NULL, 9);
+static SENSOR_DEVICE_ATTR(in9_max, S_IRUGO | S_IWUSR,
+			  show_in0_max, set_in0_max, 9);
+static SENSOR_DEVICE_ATTR(in9_min, S_IRUGO | S_IWUSR,
+			  show_in0_min, set_in0_min, 9);
+static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, show_in0, NULL, 10);
+static SENSOR_DEVICE_ATTR(in10_max, S_IRUGO | S_IWUSR,
+			  show_in0_max, set_in0_max, 10);
+static SENSOR_DEVICE_ATTR(in10_min, S_IRUGO | S_IWUSR,
+			  show_in0_min, set_in0_min, 10);
+
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO | S_IWUSR,
+			  show_fan_min, set_fan_min, 0);
+static SENSOR_DEVICE_ATTR(fan1_target, S_IRUGO | S_IWUSR,
+			  show_fan_target, set_fan_target, 0);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO | S_IWUSR,
+			  show_fan_min, set_fan_min, 1);
+static SENSOR_DEVICE_ATTR(fan2_target, S_IRUGO | S_IWUSR,
+			  show_fan_target, set_fan_target, 1);
+static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan3_min, S_IRUGO | S_IWUSR,
+			  show_fan_min, set_fan_min, 2);
+static SENSOR_DEVICE_ATTR(fan3_target, S_IRUGO | S_IWUSR,
+			  show_fan_target, set_fan_target, 2);
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR,
+		    show_temp_max, set_temp_max, 0);
+static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR,
+		    show_temp_hyst, set_temp_hyst, 0);
+static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO | S_IWUSR,
+		    show_temp_max, set_temp_max, 1);
+static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR,
+		    show_temp_hyst, set_temp_hyst, 1);
+static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp3_max, S_IRUGO | S_IWUSR,
+		    show_temp_max, set_temp_max, 2);
+static SENSOR_DEVICE_ATTR(temp3_max_hyst, S_IRUGO | S_IWUSR,
+		    show_temp_hyst, set_temp_hyst, 2);
+static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2);
+
+/* pwm (value) files are created read-only, write permission is
+   then added or removed dynamically as needed */
+static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO, show_pwm, set_pwm, 0);
+static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
+			  show_pwm_enable, set_pwm_enable, 0);
+static SENSOR_DEVICE_ATTR(pwm1_freq, S_IRUGO | S_IWUSR,
+			  show_pwm_freq, set_pwm_freq, 0);
+static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO, show_pwm_mode, NULL, 0);
+static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO, show_pwm, set_pwm, 1);
+static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR,
+			  show_pwm_enable, set_pwm_enable, 1);
+static SENSOR_DEVICE_ATTR(pwm2_freq, S_IRUGO | S_IWUSR,
+			  show_pwm_freq, set_pwm_freq, 1);
+static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO, show_pwm_mode, NULL, 1);
+static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO, show_pwm, set_pwm, 2);
+static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR,
+			  show_pwm_enable, set_pwm_enable, 2);
+static SENSOR_DEVICE_ATTR(pwm3_freq, S_IRUGO | S_IWUSR,
+			  show_pwm_freq, set_pwm_freq, 2);
+static SENSOR_DEVICE_ATTR(pwm3_mode, S_IRUGO, show_pwm_mode, NULL, 2);
+
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp, S_IRUGO | S_IWUSR,
+			    show_pwm_auto_point_temp, set_pwm_auto_point_temp,
+			    0, 0);
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_fan, S_IRUGO | S_IWUSR,
+			    show_pwm_auto_point_fan, set_pwm_auto_point_fan,
+			    0, 0);
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_temp, S_IRUGO | S_IWUSR,
+			    show_pwm_auto_point_temp, set_pwm_auto_point_temp,
+			    0, 1);
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_fan, S_IRUGO | S_IWUSR,
+			    show_pwm_auto_point_fan, set_pwm_auto_point_fan,
+			    0, 1);
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_temp, S_IRUGO | S_IWUSR,
+			    show_pwm_auto_point_temp, set_pwm_auto_point_temp,
+			    0, 2);
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_fan, S_IRUGO | S_IWUSR,
+			    show_pwm_auto_point_fan, set_pwm_auto_point_fan,
+			    0, 2);
+
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp, S_IRUGO | S_IWUSR,
+			    show_pwm_auto_point_temp, set_pwm_auto_point_temp,
+			    1, 0);
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_fan, S_IRUGO | S_IWUSR,
+			    show_pwm_auto_point_fan, set_pwm_auto_point_fan,
+			    1, 0);
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_temp, S_IRUGO | S_IWUSR,
+			    show_pwm_auto_point_temp, set_pwm_auto_point_temp,
+			    1, 1);
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_fan, S_IRUGO | S_IWUSR,
+			    show_pwm_auto_point_fan, set_pwm_auto_point_fan,
+			    1, 1);
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_temp, S_IRUGO | S_IWUSR,
+			    show_pwm_auto_point_temp, set_pwm_auto_point_temp,
+			    1, 2);
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_fan, S_IRUGO | S_IWUSR,
+			    show_pwm_auto_point_fan, set_pwm_auto_point_fan,
+			    1, 2);
+
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp, S_IRUGO | S_IWUSR,
+			    show_pwm_auto_point_temp, set_pwm_auto_point_temp,
+			    2, 0);
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_fan, S_IRUGO | S_IWUSR,
+			    show_pwm_auto_point_fan, set_pwm_auto_point_fan,
+			    2, 0);
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_temp, S_IRUGO | S_IWUSR,
+			    show_pwm_auto_point_temp, set_pwm_auto_point_temp,
+			    2, 1);
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_fan, S_IRUGO | S_IWUSR,
+			    show_pwm_auto_point_fan, set_pwm_auto_point_fan,
+			    2, 1);
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_temp, S_IRUGO | S_IWUSR,
+			    show_pwm_auto_point_temp, set_pwm_auto_point_temp,
+			    2, 2);
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_fan, S_IRUGO | S_IWUSR,
+			    show_pwm_auto_point_fan, set_pwm_auto_point_fan,
+			    2, 2);
+
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 7);
+static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 9);
+static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 10);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 11);
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 12);
+static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 16);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 17);
+static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 18);
+static DEVICE_ATTR(alarms_in, S_IRUGO, show_alarms_in, NULL);
+static DEVICE_ATTR(alarms_fan, S_IRUGO, show_alarms_fan, NULL);
+static DEVICE_ATTR(alarms_temp, S_IRUGO, show_alarms_temp, NULL);
+
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+
+static struct attribute *f71805f_attributes[] = {
+	&sensor_dev_attr_in0_input.dev_attr.attr,
+	&sensor_dev_attr_in0_max.dev_attr.attr,
+	&sensor_dev_attr_in0_min.dev_attr.attr,
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in1_max.dev_attr.attr,
+	&sensor_dev_attr_in1_min.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in2_max.dev_attr.attr,
+	&sensor_dev_attr_in2_min.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in3_max.dev_attr.attr,
+	&sensor_dev_attr_in3_min.dev_attr.attr,
+	&sensor_dev_attr_in5_input.dev_attr.attr,
+	&sensor_dev_attr_in5_max.dev_attr.attr,
+	&sensor_dev_attr_in5_min.dev_attr.attr,
+	&sensor_dev_attr_in6_input.dev_attr.attr,
+	&sensor_dev_attr_in6_max.dev_attr.attr,
+	&sensor_dev_attr_in6_min.dev_attr.attr,
+	&sensor_dev_attr_in7_input.dev_attr.attr,
+	&sensor_dev_attr_in7_max.dev_attr.attr,
+	&sensor_dev_attr_in7_min.dev_attr.attr,
+
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan1_target.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan2_target.dev_attr.attr,
+	&sensor_dev_attr_fan3_input.dev_attr.attr,
+	&sensor_dev_attr_fan3_min.dev_attr.attr,
+	&sensor_dev_attr_fan3_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan3_target.dev_attr.attr,
+
+	&sensor_dev_attr_pwm1.dev_attr.attr,
+	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm1_mode.dev_attr.attr,
+	&sensor_dev_attr_pwm2.dev_attr.attr,
+	&sensor_dev_attr_pwm2_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm2_mode.dev_attr.attr,
+	&sensor_dev_attr_pwm3.dev_attr.attr,
+	&sensor_dev_attr_pwm3_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm3_mode.dev_attr.attr,
+
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp1_type.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp2_type.dev_attr.attr,
+	&sensor_dev_attr_temp3_input.dev_attr.attr,
+	&sensor_dev_attr_temp3_max.dev_attr.attr,
+	&sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp3_type.dev_attr.attr,
+
+	&sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_point1_fan.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_point2_fan.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_point3_fan.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_point1_fan.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_point2_fan.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_point3_fan.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point1_fan.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point2_fan.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point3_fan.dev_attr.attr,
+
+	&sensor_dev_attr_in0_alarm.dev_attr.attr,
+	&sensor_dev_attr_in1_alarm.dev_attr.attr,
+	&sensor_dev_attr_in2_alarm.dev_attr.attr,
+	&sensor_dev_attr_in3_alarm.dev_attr.attr,
+	&sensor_dev_attr_in5_alarm.dev_attr.attr,
+	&sensor_dev_attr_in6_alarm.dev_attr.attr,
+	&sensor_dev_attr_in7_alarm.dev_attr.attr,
+	&dev_attr_alarms_in.attr,
+	&sensor_dev_attr_temp1_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp3_alarm.dev_attr.attr,
+	&dev_attr_alarms_temp.attr,
+	&dev_attr_alarms_fan.attr,
+
+	&dev_attr_name.attr,
+	NULL
+};
+
+static const struct attribute_group f71805f_group = {
+	.attrs = f71805f_attributes,
+};
+
+static struct attribute *f71805f_attributes_optin[4][5] = {
+	{
+		&sensor_dev_attr_in4_input.dev_attr.attr,
+		&sensor_dev_attr_in4_max.dev_attr.attr,
+		&sensor_dev_attr_in4_min.dev_attr.attr,
+		&sensor_dev_attr_in4_alarm.dev_attr.attr,
+		NULL
+	}, {
+		&sensor_dev_attr_in8_input.dev_attr.attr,
+		&sensor_dev_attr_in8_max.dev_attr.attr,
+		&sensor_dev_attr_in8_min.dev_attr.attr,
+		&sensor_dev_attr_in8_alarm.dev_attr.attr,
+		NULL
+	}, {
+		&sensor_dev_attr_in9_input.dev_attr.attr,
+		&sensor_dev_attr_in9_max.dev_attr.attr,
+		&sensor_dev_attr_in9_min.dev_attr.attr,
+		&sensor_dev_attr_in9_alarm.dev_attr.attr,
+		NULL
+	}, {
+		&sensor_dev_attr_in10_input.dev_attr.attr,
+		&sensor_dev_attr_in10_max.dev_attr.attr,
+		&sensor_dev_attr_in10_min.dev_attr.attr,
+		&sensor_dev_attr_in10_alarm.dev_attr.attr,
+		NULL
+	}
+};
+
+static const struct attribute_group f71805f_group_optin[4] = {
+	{ .attrs = f71805f_attributes_optin[0] },
+	{ .attrs = f71805f_attributes_optin[1] },
+	{ .attrs = f71805f_attributes_optin[2] },
+	{ .attrs = f71805f_attributes_optin[3] },
+};
+
+/* We don't include pwm_freq files in the arrays above, because they must be
+   created conditionally (only if pwm_mode is 1 == PWM) */
+static struct attribute *f71805f_attributes_pwm_freq[] = {
+	&sensor_dev_attr_pwm1_freq.dev_attr.attr,
+	&sensor_dev_attr_pwm2_freq.dev_attr.attr,
+	&sensor_dev_attr_pwm3_freq.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group f71805f_group_pwm_freq = {
+	.attrs = f71805f_attributes_pwm_freq,
+};
+
+/* We also need an indexed access to pwmN files to toggle writability */
+static struct attribute *f71805f_attr_pwm[] = {
+	&sensor_dev_attr_pwm1.dev_attr.attr,
+	&sensor_dev_attr_pwm2.dev_attr.attr,
+	&sensor_dev_attr_pwm3.dev_attr.attr,
+};
+
+/*
+ * Device registration and initialization
+ */
+
+static void __devinit f71805f_init_device(struct f71805f_data *data)
+{
+	u8 reg;
+	int i;
+
+	reg = f71805f_read8(data, F71805F_REG_START);
+	if ((reg & 0x41) != 0x01) {
+		printk(KERN_DEBUG DRVNAME ": Starting monitoring "
+		       "operations\n");
+		f71805f_write8(data, F71805F_REG_START, (reg | 0x01) & ~0x40);
+	}
+
+	/* Fan monitoring can be disabled. If it is, we won't be polling
+	   the register values, and won't create the related sysfs files. */
+	for (i = 0; i < 3; i++) {
+		data->fan_ctrl[i] = f71805f_read8(data,
+						  F71805F_REG_FAN_CTRL(i));
+		/* Clear latch full bit, else "speed mode" fan speed control
+		   doesn't work */
+		if (data->fan_ctrl[i] & FAN_CTRL_LATCH_FULL) {
+			data->fan_ctrl[i] &= ~FAN_CTRL_LATCH_FULL;
+			f71805f_write8(data, F71805F_REG_FAN_CTRL(i),
+				       data->fan_ctrl[i]);
+		}
+	}
+}
+
+static int __devinit f71805f_probe(struct platform_device *pdev)
+{
+	struct f71805f_sio_data *sio_data = pdev->dev.platform_data;
+	struct f71805f_data *data;
+	struct resource *res;
+	int i, err;
+
+	static const char *names[] = {
+		"f71805f",
+		"f71872f",
+	};
+
+	if (!(data = kzalloc(sizeof(struct f71805f_data), GFP_KERNEL))) {
+		err = -ENOMEM;
+		printk(KERN_ERR DRVNAME ": Out of memory\n");
+		goto exit;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	if (!request_region(res->start + ADDR_REG_OFFSET, 2, DRVNAME)) {
+		err = -EBUSY;
+		dev_err(&pdev->dev, "Failed to request region 0x%lx-0x%lx\n",
+			(unsigned long)(res->start + ADDR_REG_OFFSET),
+			(unsigned long)(res->start + ADDR_REG_OFFSET + 1));
+		goto exit_free;
+	}
+	data->addr = res->start;
+	data->name = names[sio_data->kind];
+	mutex_init(&data->update_lock);
+
+	platform_set_drvdata(pdev, data);
+
+	/* Some voltage inputs depend on chip model and configuration */
+	switch (sio_data->kind) {
+	case f71805f:
+		data->has_in = 0x1ff;
+		break;
+	case f71872f:
+		data->has_in = 0x6ef;
+		if (sio_data->fnsel1 & 0x01)
+			data->has_in |= (1 << 4); /* in4 */
+		if (sio_data->fnsel1 & 0x02)
+			data->has_in |= (1 << 8); /* in8 */
+		break;
+	}
+
+	/* Initialize the F71805F chip */
+	f71805f_init_device(data);
+
+	/* Register sysfs interface files */
+	if ((err = sysfs_create_group(&pdev->dev.kobj, &f71805f_group)))
+		goto exit_release_region;
+	if (data->has_in & (1 << 4)) { /* in4 */
+		if ((err = sysfs_create_group(&pdev->dev.kobj,
+					      &f71805f_group_optin[0])))
+			goto exit_remove_files;
+	}
+	if (data->has_in & (1 << 8)) { /* in8 */
+		if ((err = sysfs_create_group(&pdev->dev.kobj,
+					      &f71805f_group_optin[1])))
+			goto exit_remove_files;
+	}
+	if (data->has_in & (1 << 9)) { /* in9 (F71872F/FG only) */
+		if ((err = sysfs_create_group(&pdev->dev.kobj,
+					      &f71805f_group_optin[2])))
+			goto exit_remove_files;
+	}
+	if (data->has_in & (1 << 10)) { /* in9 (F71872F/FG only) */
+		if ((err = sysfs_create_group(&pdev->dev.kobj,
+					      &f71805f_group_optin[3])))
+			goto exit_remove_files;
+	}
+	for (i = 0; i < 3; i++) {
+		/* If control mode is PWM, create pwm_freq file */
+		if (!(data->fan_ctrl[i] & FAN_CTRL_DC_MODE)) {
+			if ((err = sysfs_create_file(&pdev->dev.kobj,
+					f71805f_attributes_pwm_freq[i])))
+				goto exit_remove_files;
+		}
+		/* If PWM is in manual mode, add write permission */
+		if (data->fan_ctrl[i] & FAN_CTRL_MODE_MANUAL) {
+			if ((err = sysfs_chmod_file(&pdev->dev.kobj,
+						    f71805f_attr_pwm[i],
+						    S_IRUGO | S_IWUSR))) {
+				dev_err(&pdev->dev, "chmod +w pwm%d failed\n",
+					i + 1);
+				goto exit_remove_files;
+			}
+		}
+	}
+
+	data->hwmon_dev = hwmon_device_register(&pdev->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		dev_err(&pdev->dev, "Class registration failed (%d)\n", err);
+		goto exit_remove_files;
+	}
+
+	return 0;
+
+exit_remove_files:
+	sysfs_remove_group(&pdev->dev.kobj, &f71805f_group);
+	for (i = 0; i < 4; i++)
+		sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_optin[i]);
+	sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_pwm_freq);
+exit_release_region:
+	release_region(res->start + ADDR_REG_OFFSET, 2);
+exit_free:
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+exit:
+	return err;
+}
+
+static int __devexit f71805f_remove(struct platform_device *pdev)
+{
+	struct f71805f_data *data = platform_get_drvdata(pdev);
+	struct resource *res;
+	int i;
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&pdev->dev.kobj, &f71805f_group);
+	for (i = 0; i < 4; i++)
+		sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_optin[i]);
+	sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_pwm_freq);
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	release_region(res->start + ADDR_REG_OFFSET, 2);
+
+	return 0;
+}
+
+static struct platform_driver f71805f_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= DRVNAME,
+	},
+	.probe		= f71805f_probe,
+	.remove		= __devexit_p(f71805f_remove),
+};
+
+static int __init f71805f_device_add(unsigned short address,
+				     const struct f71805f_sio_data *sio_data)
+{
+	struct resource res = {
+		.start	= address,
+		.end	= address + REGION_LENGTH - 1,
+		.flags	= IORESOURCE_IO,
+	};
+	int err;
+
+	pdev = platform_device_alloc(DRVNAME, address);
+	if (!pdev) {
+		err = -ENOMEM;
+		printk(KERN_ERR DRVNAME ": Device allocation failed\n");
+		goto exit;
+	}
+
+	res.name = pdev->name;
+	err = platform_device_add_resources(pdev, &res, 1);
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Device resource addition failed "
+		       "(%d)\n", err);
+		goto exit_device_put;
+	}
+
+	err = platform_device_add_data(pdev, sio_data,
+				       sizeof(struct f71805f_sio_data));
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Platform data allocation failed\n");
+		goto exit_device_put;
+	}
+
+	err = platform_device_add(pdev);
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",
+		       err);
+		goto exit_device_put;
+	}
+
+	return 0;
+
+exit_device_put:
+	platform_device_put(pdev);
+exit:
+	return err;
+}
+
+static int __init f71805f_find(int sioaddr, unsigned short *address,
+			       struct f71805f_sio_data *sio_data)
+{
+	int err = -ENODEV;
+	u16 devid;
+
+	static const char *names[] = {
+		"F71805F/FG",
+		"F71872F/FG or F71806F/FG",
+	};
+
+	superio_enter(sioaddr);
+
+	devid = superio_inw(sioaddr, SIO_REG_MANID);
+	if (devid != SIO_FINTEK_ID)
+		goto exit;
+
+	devid = force_id ? force_id : superio_inw(sioaddr, SIO_REG_DEVID);
+	switch (devid) {
+	case SIO_F71805F_ID:
+		sio_data->kind = f71805f;
+		break;
+	case SIO_F71872F_ID:
+		sio_data->kind = f71872f;
+		sio_data->fnsel1 = superio_inb(sioaddr, SIO_REG_FNSEL1);
+		break;
+	default:
+		printk(KERN_INFO DRVNAME ": Unsupported Fintek device, "
+		       "skipping\n");
+		goto exit;
+	}
+
+	superio_select(sioaddr, F71805F_LD_HWM);
+	if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) {
+		printk(KERN_WARNING DRVNAME ": Device not activated, "
+		       "skipping\n");
+		goto exit;
+	}
+
+	*address = superio_inw(sioaddr, SIO_REG_ADDR);
+	if (*address == 0) {
+		printk(KERN_WARNING DRVNAME ": Base address not set, "
+		       "skipping\n");
+		goto exit;
+	}
+	*address &= ~(REGION_LENGTH - 1);	/* Ignore 3 LSB */
+
+	err = 0;
+	printk(KERN_INFO DRVNAME ": Found %s chip at %#x, revision %u\n",
+	       names[sio_data->kind], *address,
+	       superio_inb(sioaddr, SIO_REG_DEVREV));
+
+exit:
+	superio_exit(sioaddr);
+	return err;
+}
+
+static int __init f71805f_init(void)
+{
+	int err;
+	unsigned short address;
+	struct f71805f_sio_data sio_data;
+
+	if (f71805f_find(0x2e, &address, &sio_data)
+	 && f71805f_find(0x4e, &address, &sio_data))
+		return -ENODEV;
+
+	err = platform_driver_register(&f71805f_driver);
+	if (err)
+		goto exit;
+
+	/* Sets global pdev as a side effect */
+	err = f71805f_device_add(address, &sio_data);
+	if (err)
+		goto exit_driver;
+
+	return 0;
+
+exit_driver:
+	platform_driver_unregister(&f71805f_driver);
+exit:
+	return err;
+}
+
+static void __exit f71805f_exit(void)
+{
+	platform_device_unregister(pdev);
+	platform_driver_unregister(&f71805f_driver);
+}
+
+MODULE_AUTHOR("Jean Delvare <khali@linux-fr>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("F71805F/F71872F hardware monitoring driver");
+
+module_init(f71805f_init);
+module_exit(f71805f_exit);
diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c
new file mode 100644
index 0000000..71556e6
--- /dev/null
+++ b/drivers/hwmon/f71882fg.c
@@ -0,0 +1,948 @@
+/***************************************************************************
+ *   Copyright (C) 2006 by Hans Edgington <hans@edgington.nl>              *
+ *   Copyright (C) 2007 by Hans de Goede  <j.w.r.degoede@hhs.nl>           *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <asm/io.h>
+
+#define DRVNAME "f71882fg"
+
+#define SIO_F71882FG_LD_HWM	0x04	/* Hardware monitor logical device*/
+#define SIO_UNLOCK_KEY		0x87	/* Key to enable Super-I/O */
+#define SIO_LOCK_KEY		0xAA	/* Key to diasble Super-I/O */
+
+#define SIO_REG_LDSEL		0x07	/* Logical device select */
+#define SIO_REG_DEVID		0x20	/* Device ID (2 bytes) */
+#define SIO_REG_DEVREV		0x22	/* Device revision */
+#define SIO_REG_MANID		0x23	/* Fintek ID (2 bytes) */
+#define SIO_REG_ENABLE		0x30	/* Logical device enable */
+#define SIO_REG_ADDR		0x60	/* Logical device address (2 bytes) */
+
+#define SIO_FINTEK_ID		0x1934	/* Manufacturers ID */
+#define SIO_F71882_ID		0x0541	/* Chipset ID */
+
+#define REGION_LENGTH		8
+#define ADDR_REG_OFFSET		5
+#define DATA_REG_OFFSET		6
+
+#define F71882FG_REG_PECI		0x0A
+
+#define F71882FG_REG_IN_STATUS		0x12
+#define F71882FG_REG_IN_BEEP		0x13
+#define F71882FG_REG_IN(nr)		(0x20  + (nr))
+#define F71882FG_REG_IN1_HIGH		0x32
+
+#define F71882FG_REG_FAN(nr)		(0xA0 + (16 * (nr)))
+#define F71882FG_REG_FAN_STATUS		0x92
+#define F71882FG_REG_FAN_BEEP		0x93
+
+#define F71882FG_REG_TEMP(nr)		(0x72 + 2 * (nr))
+#define F71882FG_REG_TEMP_OVT(nr)	(0x82 + 2 * (nr))
+#define F71882FG_REG_TEMP_HIGH(nr)	(0x83 + 2 * (nr))
+#define F71882FG_REG_TEMP_STATUS	0x62
+#define F71882FG_REG_TEMP_BEEP		0x63
+#define F71882FG_REG_TEMP_HYST1		0x6C
+#define F71882FG_REG_TEMP_HYST23	0x6D
+#define F71882FG_REG_TEMP_TYPE		0x6B
+#define F71882FG_REG_TEMP_DIODE_OPEN	0x6F
+
+#define	F71882FG_REG_START		0x01
+
+#define FAN_MIN_DETECT			366 /* Lowest detectable fanspeed */
+
+static unsigned short force_id;
+module_param(force_id, ushort, 0);
+MODULE_PARM_DESC(force_id, "Override the detected device ID");
+
+static struct platform_device *f71882fg_pdev = NULL;
+
+/* Super-I/O Function prototypes */
+static inline int superio_inb(int base, int reg);
+static inline int superio_inw(int base, int reg);
+static inline void superio_enter(int base);
+static inline void superio_select(int base, int ld);
+static inline void superio_exit(int base);
+
+struct f71882fg_data {
+	unsigned short addr;
+	struct device *hwmon_dev;
+
+	struct mutex update_lock;
+	char valid;			/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+	unsigned long last_limits;	/* In jiffies */
+
+	/* Register Values */
+	u8	in[9];
+	u8	in1_max;
+	u8	in_status;
+	u8	in_beep;
+	u16	fan[4];
+	u8	fan_status;
+	u8	fan_beep;
+	u8	temp[3];
+	u8	temp_ovt[3];
+	u8	temp_high[3];
+	u8	temp_hyst[3];
+	u8	temp_type[3];
+	u8	temp_status;
+	u8	temp_beep;
+	u8	temp_diode_open;
+};
+
+/* Sysfs in*/
+static ssize_t show_in(struct device *dev, struct device_attribute *devattr,
+	char *buf);
+static ssize_t show_in_max(struct device *dev, struct device_attribute
+	*devattr, char *buf);
+static ssize_t store_in_max(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count);
+static ssize_t show_in_beep(struct device *dev, struct device_attribute
+	*devattr, char *buf);
+static ssize_t store_in_beep(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count);
+static ssize_t show_in_alarm(struct device *dev, struct device_attribute
+	*devattr, char *buf);
+/* Sysfs Fan */
+static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
+	char *buf);
+static ssize_t show_fan_beep(struct device *dev, struct device_attribute
+	*devattr, char *buf);
+static ssize_t store_fan_beep(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count);
+static ssize_t show_fan_alarm(struct device *dev, struct device_attribute
+	*devattr, char *buf);
+/* Sysfs Temp */
+static ssize_t show_temp(struct device *dev, struct device_attribute
+	*devattr, char *buf);
+static ssize_t show_temp_max(struct device *dev, struct device_attribute
+	*devattr, char *buf);
+static ssize_t store_temp_max(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count);
+static ssize_t show_temp_max_hyst(struct device *dev, struct device_attribute
+	*devattr, char *buf);
+static ssize_t store_temp_max_hyst(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count);
+static ssize_t show_temp_crit(struct device *dev, struct device_attribute
+	*devattr, char *buf);
+static ssize_t store_temp_crit(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count);
+static ssize_t show_temp_crit_hyst(struct device *dev, struct device_attribute
+	*devattr, char *buf);
+static ssize_t show_temp_type(struct device *dev, struct device_attribute
+	*devattr, char *buf);
+static ssize_t show_temp_beep(struct device *dev, struct device_attribute
+	*devattr, char *buf);
+static ssize_t store_temp_beep(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count);
+static ssize_t show_temp_alarm(struct device *dev, struct device_attribute
+	*devattr, char *buf);
+static ssize_t show_temp_fault(struct device *dev, struct device_attribute
+	*devattr, char *buf);
+/* Sysfs misc */
+static ssize_t show_name(struct device *dev, struct device_attribute *devattr,
+	char *buf);
+
+static int __devinit f71882fg_probe(struct platform_device * pdev);
+static int __devexit f71882fg_remove(struct platform_device *pdev);
+static int __init f71882fg_init(void);
+static int __init f71882fg_find(int sioaddr, unsigned short *address);
+static int __init f71882fg_device_add(unsigned short address);
+static void __exit f71882fg_exit(void);
+
+static struct platform_driver f71882fg_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= DRVNAME,
+	},
+	.probe		= f71882fg_probe,
+	.remove		= __devexit_p(f71882fg_remove),
+};
+
+static struct device_attribute f71882fg_dev_attr[] =
+{
+	__ATTR( name, S_IRUGO, show_name, NULL ),
+};
+
+static struct sensor_device_attribute f71882fg_in_temp_attr[] =
+{
+	SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0),
+	SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1),
+	SENSOR_ATTR(in1_max, S_IRUGO|S_IWUSR, show_in_max, store_in_max, 1),
+	SENSOR_ATTR(in1_beep, S_IRUGO|S_IWUSR, show_in_beep, store_in_beep, 1),
+	SENSOR_ATTR(in1_alarm, S_IRUGO, show_in_alarm, NULL, 1),
+	SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2),
+	SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3),
+	SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4),
+	SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5),
+	SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6),
+	SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7),
+	SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8),
+	SENSOR_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0),
+	SENSOR_ATTR(temp1_max, S_IRUGO|S_IWUSR, show_temp_max,
+		store_temp_max, 0),
+	SENSOR_ATTR(temp1_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
+		store_temp_max_hyst, 0),
+	SENSOR_ATTR(temp1_crit, S_IRUGO|S_IWUSR, show_temp_crit,
+		store_temp_crit, 0),
+	SENSOR_ATTR(temp1_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 0),
+	SENSOR_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0),
+	SENSOR_ATTR(temp1_beep, S_IRUGO|S_IWUSR, show_temp_beep,
+		store_temp_beep, 0),
+	SENSOR_ATTR(temp1_alarm, S_IRUGO, show_temp_alarm, NULL, 0),
+	SENSOR_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0),
+	SENSOR_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1),
+	SENSOR_ATTR(temp2_max, S_IRUGO|S_IWUSR, show_temp_max,
+		store_temp_max, 1),
+	SENSOR_ATTR(temp2_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
+		store_temp_max_hyst, 1),
+	SENSOR_ATTR(temp2_crit, S_IRUGO|S_IWUSR, show_temp_crit,
+		store_temp_crit, 1),
+	SENSOR_ATTR(temp2_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 1),
+	SENSOR_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1),
+	SENSOR_ATTR(temp2_beep, S_IRUGO|S_IWUSR, show_temp_beep,
+		store_temp_beep, 1),
+	SENSOR_ATTR(temp2_alarm, S_IRUGO, show_temp_alarm, NULL, 1),
+	SENSOR_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1),
+	SENSOR_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2),
+	SENSOR_ATTR(temp3_max, S_IRUGO|S_IWUSR, show_temp_max,
+		store_temp_max, 2),
+	SENSOR_ATTR(temp3_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
+		store_temp_max_hyst, 2),
+	SENSOR_ATTR(temp3_crit, S_IRUGO|S_IWUSR, show_temp_crit,
+		store_temp_crit, 2),
+	SENSOR_ATTR(temp3_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 2),
+	SENSOR_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2),
+	SENSOR_ATTR(temp3_beep, S_IRUGO|S_IWUSR, show_temp_beep,
+		store_temp_beep, 2),
+	SENSOR_ATTR(temp3_alarm, S_IRUGO, show_temp_alarm, NULL, 2),
+	SENSOR_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2)
+};
+
+static struct sensor_device_attribute f71882fg_fan_attr[] =
+{
+	SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
+	SENSOR_ATTR(fan1_beep, S_IRUGO|S_IWUSR, show_fan_beep,
+		store_fan_beep, 0),
+	SENSOR_ATTR(fan1_alarm, S_IRUGO, show_fan_alarm, NULL, 0),
+	SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
+	SENSOR_ATTR(fan2_beep, S_IRUGO|S_IWUSR, show_fan_beep,
+		store_fan_beep, 1),
+	SENSOR_ATTR(fan2_alarm, S_IRUGO, show_fan_alarm, NULL, 1),
+	SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2),
+	SENSOR_ATTR(fan3_beep, S_IRUGO|S_IWUSR, show_fan_beep,
+		store_fan_beep, 2),
+	SENSOR_ATTR(fan3_alarm, S_IRUGO, show_fan_alarm, NULL, 2),
+	SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3),
+	SENSOR_ATTR(fan4_beep, S_IRUGO|S_IWUSR, show_fan_beep,
+		store_fan_beep, 3),
+	SENSOR_ATTR(fan4_alarm, S_IRUGO, show_fan_alarm, NULL, 3)
+};
+
+
+/* Super I/O functions */
+static inline int superio_inb(int base, int reg)
+{
+	outb(reg, base);
+	return inb(base + 1);
+}
+
+static int superio_inw(int base, int reg)
+{
+	int val;
+	outb(reg++, base);
+	val = inb(base + 1) << 8;
+	outb(reg, base);
+	val |= inb(base + 1);
+	return val;
+}
+
+static inline void superio_enter(int base)
+{
+	/* according to the datasheet the key must be send twice! */
+	outb( SIO_UNLOCK_KEY, base);
+	outb( SIO_UNLOCK_KEY, base);
+}
+
+static inline void superio_select( int base, int ld)
+{
+	outb(SIO_REG_LDSEL, base);
+	outb(ld, base + 1);
+}
+
+static inline void superio_exit(int base)
+{
+	outb(SIO_LOCK_KEY, base);
+}
+
+static inline u16 fan_from_reg(u16 reg)
+{
+	return reg ? (1500000 / reg) : 0;
+}
+
+static u8 f71882fg_read8(struct f71882fg_data *data, u8 reg)
+{
+	u8 val;
+
+	outb(reg, data->addr + ADDR_REG_OFFSET);
+	val = inb(data->addr + DATA_REG_OFFSET);
+
+	return val;
+}
+
+static u16 f71882fg_read16(struct f71882fg_data *data, u8 reg)
+{
+	u16 val;
+
+	outb(reg++, data->addr + ADDR_REG_OFFSET);
+	val = inb(data->addr + DATA_REG_OFFSET) << 8;
+	outb(reg, data->addr + ADDR_REG_OFFSET);
+	val |= inb(data->addr + DATA_REG_OFFSET);
+
+	return val;
+}
+
+static void f71882fg_write8(struct f71882fg_data *data, u8 reg, u8 val)
+{
+	outb(reg, data->addr + ADDR_REG_OFFSET);
+	outb(val, data->addr + DATA_REG_OFFSET);
+}
+
+static struct f71882fg_data *f71882fg_update_device(struct device * dev)
+{
+	struct f71882fg_data *data = dev_get_drvdata(dev);
+	int nr, reg, reg2;
+
+	mutex_lock(&data->update_lock);
+
+	/* Update once every 60 seconds */
+	if ( time_after(jiffies, data->last_limits + 60 * HZ ) ||
+			!data->valid) {
+		data->in1_max = f71882fg_read8(data, F71882FG_REG_IN1_HIGH);
+		data->in_beep = f71882fg_read8(data, F71882FG_REG_IN_BEEP);
+
+		/* Get High & boundary temps*/
+		for (nr = 0; nr < 3; nr++) {
+			data->temp_ovt[nr] = f71882fg_read8(data,
+						F71882FG_REG_TEMP_OVT(nr));
+			data->temp_high[nr] = f71882fg_read8(data,
+						F71882FG_REG_TEMP_HIGH(nr));
+		}
+
+		/* Have to hardcode hyst*/
+		data->temp_hyst[0] = f71882fg_read8(data,
+						F71882FG_REG_TEMP_HYST1) >> 4;
+		/* Hyst temps 2 & 3 stored in same register */
+		reg = f71882fg_read8(data, F71882FG_REG_TEMP_HYST23);
+		data->temp_hyst[1] = reg & 0x0F;
+		data->temp_hyst[2] = reg >> 4;
+
+		/* Have to hardcode type, because temp1 is special */
+		reg  = f71882fg_read8(data, F71882FG_REG_TEMP_TYPE);
+		reg2 = f71882fg_read8(data, F71882FG_REG_PECI);
+		if ((reg2 & 0x03) == 0x01)
+			data->temp_type[0] = 6 /* PECI */;
+		else if ((reg2 & 0x03) == 0x02)
+			data->temp_type[0] = 5 /* AMDSI */;
+		else
+			data->temp_type[0] = (reg & 0x02) ? 2 : 4;
+
+		data->temp_type[1] = (reg & 0x04) ? 2 : 4;
+		data->temp_type[2] = (reg & 0x08) ? 2 : 4;
+
+		data->temp_beep = f71882fg_read8(data, F71882FG_REG_TEMP_BEEP);
+
+		data->fan_beep = f71882fg_read8(data, F71882FG_REG_FAN_BEEP);
+
+		data->last_limits = jiffies;
+	}
+
+	/* Update every second */
+	if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
+		data->temp_status = f71882fg_read8(data,
+						F71882FG_REG_TEMP_STATUS);
+		data->temp_diode_open = f71882fg_read8(data,
+						F71882FG_REG_TEMP_DIODE_OPEN);
+		for (nr = 0; nr < 3; nr++)
+			data->temp[nr] = f71882fg_read8(data,
+						F71882FG_REG_TEMP(nr));
+
+		data->fan_status = f71882fg_read8(data,
+						F71882FG_REG_FAN_STATUS);
+		for (nr = 0; nr < 4; nr++)
+			data->fan[nr] = f71882fg_read16(data,
+						F71882FG_REG_FAN(nr));
+
+		data->in_status = f71882fg_read8(data,
+						F71882FG_REG_IN_STATUS);
+		for (nr = 0; nr < 9; nr++)
+			data->in[nr] = f71882fg_read8(data,
+						F71882FG_REG_IN(nr));
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+/* Sysfs Interface */
+static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
+	char *buf)
+{
+	struct f71882fg_data *data = f71882fg_update_device(dev);
+	int nr = to_sensor_dev_attr(devattr)->index;
+	int speed = fan_from_reg(data->fan[nr]);
+
+	if (speed == FAN_MIN_DETECT)
+		speed = 0;
+
+	return sprintf(buf, "%d\n", speed);
+}
+
+static ssize_t show_fan_beep(struct device *dev, struct device_attribute
+	*devattr, char *buf)
+{
+	struct f71882fg_data *data = f71882fg_update_device(dev);
+	int nr = to_sensor_dev_attr(devattr)->index;
+
+	if (data->fan_beep & (1 << nr))
+		return sprintf(buf, "1\n");
+	else
+		return sprintf(buf, "0\n");
+}
+
+static ssize_t store_fan_beep(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count)
+{
+	struct f71882fg_data *data = dev_get_drvdata(dev);
+	int nr = to_sensor_dev_attr(devattr)->index;
+	int val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	if (val)
+		data->fan_beep |= 1 << nr;
+	else
+		data->fan_beep &= ~(1 << nr);
+
+	f71882fg_write8(data, F71882FG_REG_FAN_BEEP, data->fan_beep);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t show_fan_alarm(struct device *dev, struct device_attribute
+	*devattr, char *buf)
+{
+	struct f71882fg_data *data = f71882fg_update_device(dev);
+	int nr = to_sensor_dev_attr(devattr)->index;
+
+	if (data->fan_status & (1 << nr))
+		return sprintf(buf, "1\n");
+	else
+		return sprintf(buf, "0\n");
+}
+
+static ssize_t show_in(struct device *dev, struct device_attribute *devattr,
+	char *buf)
+{
+	struct f71882fg_data *data = f71882fg_update_device(dev);
+	int nr = to_sensor_dev_attr(devattr)->index;
+
+	return sprintf(buf, "%d\n", data->in[nr] * 8);
+}
+
+static ssize_t show_in_max(struct device *dev, struct device_attribute
+	*devattr, char *buf)
+{
+	struct f71882fg_data *data = f71882fg_update_device(dev);
+
+	return sprintf(buf, "%d\n", data->in1_max * 8);
+}
+
+static ssize_t store_in_max(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count)
+{
+	struct f71882fg_data *data = dev_get_drvdata(dev);
+	int val = simple_strtoul(buf, NULL, 10) / 8;
+
+	if (val > 255)
+		val = 255;
+
+	mutex_lock(&data->update_lock);
+	f71882fg_write8(data, F71882FG_REG_IN1_HIGH, val);
+	data->in1_max = val;
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t show_in_beep(struct device *dev, struct device_attribute
+	*devattr, char *buf)
+{
+	struct f71882fg_data *data = f71882fg_update_device(dev);
+	int nr = to_sensor_dev_attr(devattr)->index;
+
+	if (data->in_beep & (1 << nr))
+		return sprintf(buf, "1\n");
+	else
+		return sprintf(buf, "0\n");
+}
+
+static ssize_t store_in_beep(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count)
+{
+	struct f71882fg_data *data = dev_get_drvdata(dev);
+	int nr = to_sensor_dev_attr(devattr)->index;
+	int val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	if (val)
+		data->in_beep |= 1 << nr;
+	else
+		data->in_beep &= ~(1 << nr);
+
+	f71882fg_write8(data, F71882FG_REG_IN_BEEP, data->in_beep);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t show_in_alarm(struct device *dev, struct device_attribute
+	*devattr, char *buf)
+{
+	struct f71882fg_data *data = f71882fg_update_device(dev);
+	int nr = to_sensor_dev_attr(devattr)->index;
+
+	if (data->in_status & (1 << nr))
+		return sprintf(buf, "1\n");
+	else
+		return sprintf(buf, "0\n");
+}
+
+static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
+	char *buf)
+{
+	struct f71882fg_data *data = f71882fg_update_device(dev);
+	int nr = to_sensor_dev_attr(devattr)->index;
+
+	return sprintf(buf, "%d\n", data->temp[nr] * 1000);
+}
+
+static ssize_t show_temp_max(struct device *dev, struct device_attribute
+	*devattr, char *buf)
+{
+	struct f71882fg_data *data = f71882fg_update_device(dev);
+	int nr = to_sensor_dev_attr(devattr)->index;
+
+	return sprintf(buf, "%d\n", data->temp_high[nr] * 1000);
+}
+
+static ssize_t store_temp_max(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count)
+{
+	struct f71882fg_data *data = dev_get_drvdata(dev);
+	int nr = to_sensor_dev_attr(devattr)->index;
+	int val = simple_strtoul(buf, NULL, 10) / 1000;
+
+	if (val > 255)
+		val = 255;
+
+	mutex_lock(&data->update_lock);
+	f71882fg_write8(data, F71882FG_REG_TEMP_HIGH(nr), val);
+	data->temp_high[nr] = val;
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t show_temp_max_hyst(struct device *dev, struct device_attribute
+	*devattr, char *buf)
+{
+	struct f71882fg_data *data = f71882fg_update_device(dev);
+	int nr = to_sensor_dev_attr(devattr)->index;
+
+	return sprintf(buf, "%d\n",
+		(data->temp_high[nr] - data->temp_hyst[nr]) * 1000);
+}
+
+static ssize_t store_temp_max_hyst(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count)
+{
+	struct f71882fg_data *data = dev_get_drvdata(dev);
+	int nr = to_sensor_dev_attr(devattr)->index;
+	int val = simple_strtoul(buf, NULL, 10) / 1000;
+	ssize_t ret = count;
+
+	mutex_lock(&data->update_lock);
+
+	/* convert abs to relative and check */
+	val = data->temp_high[nr] - val;
+	if (val < 0 || val > 15) {
+		ret = -EINVAL;
+		goto store_temp_max_hyst_exit;
+	}
+
+	data->temp_hyst[nr] = val;
+
+	/* convert value to register contents */
+	switch (nr) {
+		case 0:
+			val = val << 4;
+			break;
+		case 1:
+			val = val | (data->temp_hyst[2] << 4);
+			break;
+		case 2:
+			val = data->temp_hyst[1] | (val << 4);
+			break;
+	}
+
+	f71882fg_write8(data, nr ? F71882FG_REG_TEMP_HYST23 :
+		F71882FG_REG_TEMP_HYST1, val);
+
+store_temp_max_hyst_exit:
+	mutex_unlock(&data->update_lock);
+	return ret;
+}
+
+static ssize_t show_temp_crit(struct device *dev, struct device_attribute
+	*devattr, char *buf)
+{
+	struct f71882fg_data *data = f71882fg_update_device(dev);
+	int nr = to_sensor_dev_attr(devattr)->index;
+
+	return sprintf(buf, "%d\n", data->temp_ovt[nr] * 1000);
+}
+
+static ssize_t store_temp_crit(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count)
+{
+	struct f71882fg_data *data = dev_get_drvdata(dev);
+	int nr = to_sensor_dev_attr(devattr)->index;
+	int val = simple_strtoul(buf, NULL, 10) / 1000;
+
+	if (val > 255)
+		val = 255;
+
+	mutex_lock(&data->update_lock);
+	f71882fg_write8(data, F71882FG_REG_TEMP_OVT(nr), val);
+	data->temp_ovt[nr] = val;
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t show_temp_crit_hyst(struct device *dev, struct device_attribute
+	*devattr, char *buf)
+{
+	struct f71882fg_data *data = f71882fg_update_device(dev);
+	int nr = to_sensor_dev_attr(devattr)->index;
+
+	return sprintf(buf, "%d\n",
+		(data->temp_ovt[nr] - data->temp_hyst[nr]) * 1000);
+}
+
+static ssize_t show_temp_type(struct device *dev, struct device_attribute
+	*devattr, char *buf)
+{
+	struct f71882fg_data *data = f71882fg_update_device(dev);
+	int nr = to_sensor_dev_attr(devattr)->index;
+
+	return sprintf(buf, "%d\n", data->temp_type[nr]);
+}
+
+static ssize_t show_temp_beep(struct device *dev, struct device_attribute
+	*devattr, char *buf)
+{
+	struct f71882fg_data *data = f71882fg_update_device(dev);
+	int nr = to_sensor_dev_attr(devattr)->index;
+
+	if (data->temp_beep & (1 << (nr + 1)))
+		return sprintf(buf, "1\n");
+	else
+		return sprintf(buf, "0\n");
+}
+
+static ssize_t store_temp_beep(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count)
+{
+	struct f71882fg_data *data = dev_get_drvdata(dev);
+	int nr = to_sensor_dev_attr(devattr)->index;
+	int val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	if (val)
+		data->temp_beep |= 1 << (nr + 1);
+	else
+		data->temp_beep &= ~(1 << (nr + 1));
+
+	f71882fg_write8(data, F71882FG_REG_TEMP_BEEP, data->temp_beep);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t show_temp_alarm(struct device *dev, struct device_attribute
+	*devattr, char *buf)
+{
+	struct f71882fg_data *data = f71882fg_update_device(dev);
+	int nr = to_sensor_dev_attr(devattr)->index;
+
+	if (data->temp_status & (1 << (nr + 1)))
+		return sprintf(buf, "1\n");
+	else
+		return sprintf(buf, "0\n");
+}
+
+static ssize_t show_temp_fault(struct device *dev, struct device_attribute
+	*devattr, char *buf)
+{
+	struct f71882fg_data *data = f71882fg_update_device(dev);
+	int nr = to_sensor_dev_attr(devattr)->index;
+
+	if (data->temp_diode_open & (1 << (nr + 1)))
+		return sprintf(buf, "1\n");
+	else
+		return sprintf(buf, "0\n");
+}
+
+static ssize_t show_name(struct device *dev, struct device_attribute *devattr,
+	char *buf)
+{
+	return sprintf(buf, DRVNAME "\n");
+}
+
+
+static int __devinit f71882fg_probe(struct platform_device * pdev)
+{
+	struct f71882fg_data *data;
+	int err, i;
+	u8 start_reg;
+
+	if (!(data = kzalloc(sizeof(struct f71882fg_data), GFP_KERNEL)))
+		return -ENOMEM;
+
+	data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start;
+	mutex_init(&data->update_lock);
+	platform_set_drvdata(pdev, data);
+
+	/* Register sysfs interface files */
+	for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++) {
+		err = device_create_file(&pdev->dev, &f71882fg_dev_attr[i]);
+		if (err)
+			goto exit_unregister_sysfs;
+	}
+
+	start_reg = f71882fg_read8(data, F71882FG_REG_START);
+	if (start_reg & 0x01) {
+		for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++) {
+			err = device_create_file(&pdev->dev,
+					&f71882fg_in_temp_attr[i].dev_attr);
+			if (err)
+				goto exit_unregister_sysfs;
+		}
+	}
+
+	if (start_reg & 0x02) {
+		for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++) {
+			err = device_create_file(&pdev->dev,
+					&f71882fg_fan_attr[i].dev_attr);
+			if (err)
+				goto exit_unregister_sysfs;
+		}
+	}
+
+	data->hwmon_dev = hwmon_device_register(&pdev->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_unregister_sysfs;
+	}
+
+	return 0;
+
+exit_unregister_sysfs:
+	for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++)
+		device_remove_file(&pdev->dev, &f71882fg_dev_attr[i]);
+
+	for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++)
+		device_remove_file(&pdev->dev,
+					&f71882fg_in_temp_attr[i].dev_attr);
+
+	for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++)
+		device_remove_file(&pdev->dev, &f71882fg_fan_attr[i].dev_attr);
+
+	kfree(data);
+
+	return err;
+}
+
+static int __devexit f71882fg_remove(struct platform_device *pdev)
+{
+	int i;
+	struct f71882fg_data *data = platform_get_drvdata(pdev);
+
+	platform_set_drvdata(pdev, NULL);
+	hwmon_device_unregister(data->hwmon_dev);
+
+	for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++)
+		device_remove_file(&pdev->dev, &f71882fg_dev_attr[i]);
+
+	for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++)
+		device_remove_file(&pdev->dev,
+					&f71882fg_in_temp_attr[i].dev_attr);
+
+	for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++)
+		device_remove_file(&pdev->dev, &f71882fg_fan_attr[i].dev_attr);
+
+	kfree(data);
+
+	return 0;
+}
+
+static int __init f71882fg_find(int sioaddr, unsigned short *address)
+{
+	int err = -ENODEV;
+	u16 devid;
+	u8 start_reg;
+	struct f71882fg_data data;
+
+	superio_enter(sioaddr);
+
+	devid = superio_inw(sioaddr, SIO_REG_MANID);
+	if (devid != SIO_FINTEK_ID) {
+		pr_debug(DRVNAME ": Not a Fintek device\n");
+		goto exit;
+	}
+
+	devid = force_id ? force_id : superio_inw(sioaddr, SIO_REG_DEVID);
+	if (devid != SIO_F71882_ID) {
+		printk(KERN_INFO DRVNAME ": Unsupported Fintek device\n");
+		goto exit;
+	}
+
+	superio_select(sioaddr, SIO_F71882FG_LD_HWM);
+	if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) {
+		printk(KERN_WARNING DRVNAME ": Device not activated\n");
+		goto exit;
+	}
+
+	*address = superio_inw(sioaddr, SIO_REG_ADDR);
+	if (*address == 0)
+	{
+		printk(KERN_WARNING DRVNAME ": Base address not set\n");
+		goto exit;
+	}
+	*address &= ~(REGION_LENGTH - 1);	/* Ignore 3 LSB */
+
+	data.addr = *address;
+	start_reg = f71882fg_read8(&data, F71882FG_REG_START);
+	if (!(start_reg & 0x03)) {
+		printk(KERN_WARNING DRVNAME
+			": Hardware monitoring not activated\n");
+		goto exit;
+	}
+
+	err = 0;
+	printk(KERN_INFO DRVNAME ": Found F71882FG chip at %#x, revision %d\n",
+		(unsigned int)*address,
+		(int)superio_inb(sioaddr, SIO_REG_DEVREV));
+exit:
+	superio_exit(sioaddr);
+	return err;
+}
+
+static int __init f71882fg_device_add(unsigned short address)
+{
+	struct resource res = {
+		.start	= address,
+		.end	= address + REGION_LENGTH - 1,
+		.flags	= IORESOURCE_IO,
+	};
+	int err;
+
+	f71882fg_pdev = platform_device_alloc(DRVNAME, address);
+	if (!f71882fg_pdev)
+		return -ENOMEM;
+
+	res.name = f71882fg_pdev->name;
+	err = platform_device_add_resources(f71882fg_pdev, &res, 1);
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Device resource addition failed\n");
+		goto exit_device_put;
+	}
+
+	err = platform_device_add(f71882fg_pdev);
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Device addition failed\n");
+		goto exit_device_put;
+	}
+
+	return 0;
+
+exit_device_put:
+	platform_device_put(f71882fg_pdev);
+
+	return err;
+}
+
+static int __init f71882fg_init(void)
+{
+	int err = -ENODEV;
+	unsigned short address;
+
+	if (f71882fg_find(0x2e, &address) && f71882fg_find(0x4e, &address))
+		goto exit;
+
+	if ((err = platform_driver_register(&f71882fg_driver)))
+		goto exit;
+
+	if ((err = f71882fg_device_add(address)))
+		goto exit_driver;
+
+	return 0;
+
+exit_driver:
+	platform_driver_unregister(&f71882fg_driver);
+exit:
+	return err;
+}
+
+static void __exit f71882fg_exit(void)
+{
+	platform_device_unregister(f71882fg_pdev);
+	platform_driver_unregister(&f71882fg_driver);
+}
+
+MODULE_DESCRIPTION("F71882FG Hardware Monitoring Driver");
+MODULE_AUTHOR("Hans Edgington (hans@edgington.nl)");
+MODULE_LICENSE("GPL");
+
+module_init(f71882fg_init);
+module_exit(f71882fg_exit);
diff --git a/drivers/hwmon/f75375s.c b/drivers/hwmon/f75375s.c
new file mode 100644
index 0000000..1692de3
--- /dev/null
+++ b/drivers/hwmon/f75375s.c
@@ -0,0 +1,729 @@
+/*
+ * f75375s.c - driver for the Fintek F75375/SP and F75373
+ *             hardware monitoring features
+ * Copyright (C) 2006-2007  Riku Voipio <riku.voipio@movial.fi>
+ *
+ * Datasheets available at:
+ *
+ * f75375:
+ * http://www.fintek.com.tw/files/productfiles/2005111152950.pdf
+ *
+ * f75373:
+ * http://www.fintek.com.tw/files/productfiles/2005111153128.pdf
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/jiffies.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/i2c.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/f75375s.h>
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x2d, 0x2e, I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_2(f75373, f75375);
+
+/* Fintek F75375 registers  */
+#define F75375_REG_CONFIG0		0x0
+#define F75375_REG_CONFIG1		0x1
+#define F75375_REG_CONFIG2		0x2
+#define F75375_REG_CONFIG3		0x3
+#define F75375_REG_ADDR			0x4
+#define F75375_REG_INTR			0x31
+#define F75375_CHIP_ID			0x5A
+#define F75375_REG_VERSION		0x5C
+#define F75375_REG_VENDOR		0x5D
+#define F75375_REG_FAN_TIMER		0x60
+
+#define F75375_REG_VOLT(nr)		(0x10 + (nr))
+#define F75375_REG_VOLT_HIGH(nr)	(0x20 + (nr) * 2)
+#define F75375_REG_VOLT_LOW(nr)		(0x21 + (nr) * 2)
+
+#define F75375_REG_TEMP(nr)		(0x14 + (nr))
+#define F75375_REG_TEMP_HIGH(nr)	(0x28 + (nr) * 2)
+#define F75375_REG_TEMP_HYST(nr)	(0x29 + (nr) * 2)
+
+#define F75375_REG_FAN(nr)		(0x16 + (nr) * 2)
+#define F75375_REG_FAN_MIN(nr)		(0x2C + (nr) * 2)
+#define F75375_REG_FAN_FULL(nr)		(0x70 + (nr) * 0x10)
+#define F75375_REG_FAN_PWM_DUTY(nr)	(0x76 + (nr) * 0x10)
+#define F75375_REG_FAN_PWM_CLOCK(nr)	(0x7D + (nr) * 0x10)
+
+#define F75375_REG_FAN_EXP(nr)		(0x74 + (nr) * 0x10)
+#define F75375_REG_FAN_B_TEMP(nr, step)	((0xA0 + (nr) * 0x10) + (step))
+#define F75375_REG_FAN_B_SPEED(nr, step) \
+	((0xA5 + (nr) * 0x10) + (step) * 2)
+
+#define F75375_REG_PWM1_RAISE_DUTY	0x69
+#define F75375_REG_PWM2_RAISE_DUTY	0x6A
+#define F75375_REG_PWM1_DROP_DUTY	0x6B
+#define F75375_REG_PWM2_DROP_DUTY	0x6C
+
+#define FAN_CTRL_LINEAR(nr)		(4 + nr)
+#define FAN_CTRL_MODE(nr)		(5 + ((nr) * 2))
+
+/*
+ * Data structures and manipulation thereof
+ */
+
+struct f75375_data {
+	unsigned short addr;
+	struct device *hwmon_dev;
+
+	const char *name;
+	int kind;
+	struct mutex update_lock; /* protect register access */
+	char valid;
+	unsigned long last_updated;	/* In jiffies */
+	unsigned long last_limits;	/* In jiffies */
+
+	/* Register values */
+	u8 in[4];
+	u8 in_max[4];
+	u8 in_min[4];
+	u16 fan[2];
+	u16 fan_min[2];
+	u16 fan_full[2];
+	u16 fan_exp[2];
+	u8 fan_timer;
+	u8 pwm[2];
+	u8 pwm_mode[2];
+	u8 pwm_enable[2];
+	s8 temp[2];
+	s8 temp_high[2];
+	s8 temp_max_hyst[2];
+};
+
+static int f75375_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info);
+static int f75375_probe(struct i2c_client *client,
+			const struct i2c_device_id *id);
+static int f75375_remove(struct i2c_client *client);
+
+static const struct i2c_device_id f75375_id[] = {
+	{ "f75373", f75373 },
+	{ "f75375", f75375 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, f75375_id);
+
+static struct i2c_driver f75375_driver = {
+	.class = I2C_CLASS_HWMON,
+	.driver = {
+		.name = "f75375",
+	},
+	.probe = f75375_probe,
+	.remove = f75375_remove,
+	.id_table = f75375_id,
+	.detect = f75375_detect,
+	.address_data = &addr_data,
+};
+
+static inline int f75375_read8(struct i2c_client *client, u8 reg)
+{
+	return i2c_smbus_read_byte_data(client, reg);
+}
+
+/* in most cases, should be called while holding update_lock */
+static inline u16 f75375_read16(struct i2c_client *client, u8 reg)
+{
+	return ((i2c_smbus_read_byte_data(client, reg) << 8)
+		| i2c_smbus_read_byte_data(client, reg + 1));
+}
+
+static inline void f75375_write8(struct i2c_client *client, u8 reg,
+		u8 value)
+{
+	i2c_smbus_write_byte_data(client, reg, value);
+}
+
+static inline void f75375_write16(struct i2c_client *client, u8 reg,
+		u16 value)
+{
+	int err = i2c_smbus_write_byte_data(client, reg, (value << 8));
+	if (err)
+		return;
+	i2c_smbus_write_byte_data(client, reg + 1, (value & 0xFF));
+}
+
+static struct f75375_data *f75375_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct f75375_data *data = i2c_get_clientdata(client);
+	int nr;
+
+	mutex_lock(&data->update_lock);
+
+	/* Limit registers cache is refreshed after 60 seconds */
+	if (time_after(jiffies, data->last_limits + 60 * HZ)
+		|| !data->valid) {
+		for (nr = 0; nr < 2; nr++) {
+			data->temp_high[nr] =
+				f75375_read8(client, F75375_REG_TEMP_HIGH(nr));
+			data->temp_max_hyst[nr] =
+				f75375_read8(client, F75375_REG_TEMP_HYST(nr));
+			data->fan_full[nr] =
+				f75375_read16(client, F75375_REG_FAN_FULL(nr));
+			data->fan_min[nr] =
+				f75375_read16(client, F75375_REG_FAN_MIN(nr));
+			data->fan_exp[nr] =
+				f75375_read16(client, F75375_REG_FAN_EXP(nr));
+			data->pwm[nr] =	f75375_read8(client,
+				F75375_REG_FAN_PWM_DUTY(nr));
+
+		}
+		for (nr = 0; nr < 4; nr++) {
+			data->in_max[nr] =
+				f75375_read8(client, F75375_REG_VOLT_HIGH(nr));
+			data->in_min[nr] =
+				f75375_read8(client, F75375_REG_VOLT_LOW(nr));
+		}
+		data->fan_timer = f75375_read8(client, F75375_REG_FAN_TIMER);
+		data->last_limits = jiffies;
+	}
+
+	/* Measurement registers cache is refreshed after 2 second */
+	if (time_after(jiffies, data->last_updated + 2 * HZ)
+		|| !data->valid) {
+		for (nr = 0; nr < 2; nr++) {
+			data->temp[nr] =
+				f75375_read8(client, F75375_REG_TEMP(nr));
+			data->fan[nr] =
+				f75375_read16(client, F75375_REG_FAN(nr));
+		}
+		for (nr = 0; nr < 4; nr++)
+			data->in[nr] =
+				f75375_read8(client, F75375_REG_VOLT(nr));
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+	return data;
+}
+
+static inline u16 rpm_from_reg(u16 reg)
+{
+	if (reg == 0 || reg == 0xffff)
+		return 0;
+	return (1500000 / reg);
+}
+
+static inline u16 rpm_to_reg(int rpm)
+{
+	if (rpm < 367 || rpm > 0xffff)
+		return 0xffff;
+	return (1500000 / rpm);
+}
+
+static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct f75375_data *data = i2c_get_clientdata(client);
+	int val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->fan_min[nr] = rpm_to_reg(val);
+	f75375_write16(client, F75375_REG_FAN_MIN(nr), data->fan_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t set_fan_exp(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct f75375_data *data = i2c_get_clientdata(client);
+	int val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->fan_exp[nr] = rpm_to_reg(val);
+	f75375_write16(client, F75375_REG_FAN_EXP(nr), data->fan_exp[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct f75375_data *data = i2c_get_clientdata(client);
+	int val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->pwm[nr] = SENSORS_LIMIT(val, 0, 255);
+	f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr), data->pwm[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
+		*attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct f75375_data *data = f75375_update_device(dev);
+	return sprintf(buf, "%d\n", data->pwm_enable[nr]);
+}
+
+static int set_pwm_enable_direct(struct i2c_client *client, int nr, int val)
+{
+	struct f75375_data *data = i2c_get_clientdata(client);
+	u8 fanmode;
+
+	if (val < 0 || val > 4)
+		return -EINVAL;
+
+	fanmode = f75375_read8(client, F75375_REG_FAN_TIMER);
+	fanmode = ~(3 << FAN_CTRL_MODE(nr));
+
+	switch (val) {
+	case 0: /* Full speed */
+		fanmode  |= (3 << FAN_CTRL_MODE(nr));
+		data->pwm[nr] = 255;
+		f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr),
+				data->pwm[nr]);
+		break;
+	case 1: /* PWM */
+		fanmode  |= (3 << FAN_CTRL_MODE(nr));
+		break;
+	case 2: /* AUTOMATIC*/
+		fanmode  |= (2 << FAN_CTRL_MODE(nr));
+		break;
+	case 3: /* fan speed */
+		break;
+	}
+	f75375_write8(client, F75375_REG_FAN_TIMER, fanmode);
+	data->pwm_enable[nr] = val;
+	return 0;
+}
+
+static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct f75375_data *data = i2c_get_clientdata(client);
+	int val = simple_strtoul(buf, NULL, 10);
+	int err = 0;
+
+	mutex_lock(&data->update_lock);
+	err = set_pwm_enable_direct(client, nr, val);
+	mutex_unlock(&data->update_lock);
+	return err ? err : count;
+}
+
+static ssize_t set_pwm_mode(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct f75375_data *data = i2c_get_clientdata(client);
+	int val = simple_strtoul(buf, NULL, 10);
+	u8 conf = 0;
+
+	if (!(val == 0 || val == 1))
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	conf = f75375_read8(client, F75375_REG_CONFIG1);
+	conf = ~(1 << FAN_CTRL_LINEAR(nr));
+
+	if (val == 0)
+		conf |= (1 << FAN_CTRL_LINEAR(nr)) ;
+
+	f75375_write8(client, F75375_REG_CONFIG1, conf);
+	data->pwm_mode[nr] = val;
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_pwm(struct device *dev, struct device_attribute
+		*attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct f75375_data *data = f75375_update_device(dev);
+	return sprintf(buf, "%d\n", data->pwm[nr]);
+}
+
+static ssize_t show_pwm_mode(struct device *dev, struct device_attribute
+		*attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct f75375_data *data = f75375_update_device(dev);
+	return sprintf(buf, "%d\n", data->pwm_mode[nr]);
+}
+
+#define VOLT_FROM_REG(val) ((val) * 8)
+#define VOLT_TO_REG(val) ((val) / 8)
+
+static ssize_t show_in(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct f75375_data *data = f75375_update_device(dev);
+	return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in[nr]));
+}
+
+static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct f75375_data *data = f75375_update_device(dev);
+	return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_max[nr]));
+}
+
+static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct f75375_data *data = f75375_update_device(dev);
+	return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_min[nr]));
+}
+
+static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct f75375_data *data = i2c_get_clientdata(client);
+	int val = simple_strtoul(buf, NULL, 10);
+	val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff);
+	mutex_lock(&data->update_lock);
+	data->in_max[nr] = val;
+	f75375_write8(client, F75375_REG_VOLT_HIGH(nr), data->in_max[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct f75375_data *data = i2c_get_clientdata(client);
+	int val = simple_strtoul(buf, NULL, 10);
+	val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff);
+	mutex_lock(&data->update_lock);
+	data->in_min[nr] = val;
+	f75375_write8(client, F75375_REG_VOLT_LOW(nr), data->in_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+#define TEMP_FROM_REG(val) ((val) * 1000)
+#define TEMP_TO_REG(val) ((val) / 1000)
+
+static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct f75375_data *data = f75375_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));
+}
+
+static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct f75375_data *data = f75375_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr]));
+}
+
+static ssize_t show_temp_max_hyst(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct f75375_data *data = f75375_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max_hyst[nr]));
+}
+
+static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct f75375_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+	val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127);
+	mutex_lock(&data->update_lock);
+	data->temp_high[nr] = val;
+	f75375_write8(client, F75375_REG_TEMP_HIGH(nr), data->temp_high[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t set_temp_max_hyst(struct device *dev,
+	struct device_attribute *attr, const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct f75375_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+	val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127);
+	mutex_lock(&data->update_lock);
+	data->temp_max_hyst[nr] = val;
+	f75375_write8(client, F75375_REG_TEMP_HYST(nr),
+		data->temp_max_hyst[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define show_fan(thing) \
+static ssize_t show_##thing(struct device *dev, struct device_attribute *attr, \
+			char *buf)\
+{\
+	int nr = to_sensor_dev_attr(attr)->index;\
+	struct f75375_data *data = f75375_update_device(dev); \
+	return sprintf(buf, "%d\n", rpm_from_reg(data->thing[nr])); \
+}
+
+show_fan(fan);
+show_fan(fan_min);
+show_fan(fan_full);
+show_fan(fan_exp);
+
+static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
+static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO|S_IWUSR,
+	show_in_max, set_in_max, 0);
+static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO|S_IWUSR,
+	show_in_min, set_in_min, 0);
+static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
+static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO|S_IWUSR,
+	show_in_max, set_in_max, 1);
+static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO|S_IWUSR,
+	show_in_min, set_in_min, 1);
+static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
+static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO|S_IWUSR,
+	show_in_max, set_in_max, 2);
+static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO|S_IWUSR,
+	show_in_min, set_in_min, 2);
+static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
+static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO|S_IWUSR,
+	show_in_max, set_in_max, 3);
+static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO|S_IWUSR,
+	show_in_min, set_in_min, 3);
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO|S_IWUSR,
+	show_temp_max_hyst, set_temp_max_hyst, 0);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO|S_IWUSR,
+	show_temp_max, set_temp_max, 0);
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO|S_IWUSR,
+	show_temp_max_hyst, set_temp_max_hyst, 1);
+static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO|S_IWUSR,
+	show_temp_max, set_temp_max, 1);
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan1_full, S_IRUGO, show_fan_full, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO|S_IWUSR,
+	show_fan_min, set_fan_min, 0);
+static SENSOR_DEVICE_ATTR(fan1_exp, S_IRUGO|S_IWUSR,
+	show_fan_exp, set_fan_exp, 0);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan2_full, S_IRUGO, show_fan_full, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO|S_IWUSR,
+	show_fan_min, set_fan_min, 1);
+static SENSOR_DEVICE_ATTR(fan2_exp, S_IRUGO|S_IWUSR,
+	show_fan_exp, set_fan_exp, 1);
+static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO|S_IWUSR,
+	show_pwm, set_pwm, 0);
+static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO|S_IWUSR,
+	show_pwm_enable, set_pwm_enable, 0);
+static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO,
+	show_pwm_mode, set_pwm_mode, 0);
+static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR,
+	show_pwm, set_pwm, 1);
+static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO|S_IWUSR,
+	show_pwm_enable, set_pwm_enable, 1);
+static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO,
+	show_pwm_mode, set_pwm_mode, 1);
+
+static struct attribute *f75375_attributes[] = {
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_full.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_exp.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_full.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_exp.dev_attr.attr,
+	&sensor_dev_attr_pwm1.dev_attr.attr,
+	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm1_mode.dev_attr.attr,
+	&sensor_dev_attr_pwm2.dev_attr.attr,
+	&sensor_dev_attr_pwm2_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm2_mode.dev_attr.attr,
+	&sensor_dev_attr_in0_input.dev_attr.attr,
+	&sensor_dev_attr_in0_max.dev_attr.attr,
+	&sensor_dev_attr_in0_min.dev_attr.attr,
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in1_max.dev_attr.attr,
+	&sensor_dev_attr_in1_min.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in2_max.dev_attr.attr,
+	&sensor_dev_attr_in2_min.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in3_max.dev_attr.attr,
+	&sensor_dev_attr_in3_min.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group f75375_group = {
+	.attrs = f75375_attributes,
+};
+
+static void f75375_init(struct i2c_client *client, struct f75375_data *data,
+		struct f75375s_platform_data *f75375s_pdata)
+{
+	int nr;
+	set_pwm_enable_direct(client, 0, f75375s_pdata->pwm_enable[0]);
+	set_pwm_enable_direct(client, 1, f75375s_pdata->pwm_enable[1]);
+	for (nr = 0; nr < 2; nr++) {
+		data->pwm[nr] = SENSORS_LIMIT(f75375s_pdata->pwm[nr], 0, 255);
+		f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr),
+			data->pwm[nr]);
+	}
+
+}
+
+static int f75375_probe(struct i2c_client *client,
+		const struct i2c_device_id *id)
+{
+	struct f75375_data *data = i2c_get_clientdata(client);
+	struct f75375s_platform_data *f75375s_pdata = client->dev.platform_data;
+	int err;
+
+	if (!i2c_check_functionality(client->adapter,
+				I2C_FUNC_SMBUS_BYTE_DATA))
+		return -EIO;
+	if (!(data = kzalloc(sizeof(struct f75375_data), GFP_KERNEL)))
+		return -ENOMEM;
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
+	data->kind = id->driver_data;
+
+	if ((err = sysfs_create_group(&client->dev.kobj, &f75375_group)))
+		goto exit_free;
+
+	if (data->kind == f75375) {
+		err = sysfs_chmod_file(&client->dev.kobj,
+			&sensor_dev_attr_pwm1_mode.dev_attr.attr,
+			S_IRUGO | S_IWUSR);
+		if (err)
+			goto exit_remove;
+		err = sysfs_chmod_file(&client->dev.kobj,
+			&sensor_dev_attr_pwm2_mode.dev_attr.attr,
+			S_IRUGO | S_IWUSR);
+		if (err)
+			goto exit_remove;
+	}
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	if (f75375s_pdata != NULL)
+		f75375_init(client, data, f75375s_pdata);
+
+	return 0;
+
+exit_remove:
+	sysfs_remove_group(&client->dev.kobj, &f75375_group);
+exit_free:
+	kfree(data);
+	i2c_set_clientdata(client, NULL);
+	return err;
+}
+
+static int f75375_remove(struct i2c_client *client)
+{
+	struct f75375_data *data = i2c_get_clientdata(client);
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &f75375_group);
+	kfree(data);
+	i2c_set_clientdata(client, NULL);
+	return 0;
+}
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int f75375_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+	u8 version = 0;
+	const char *name = "";
+
+	if (kind < 0) {
+		u16 vendid = f75375_read16(client, F75375_REG_VENDOR);
+		u16 chipid = f75375_read16(client, F75375_CHIP_ID);
+		version = f75375_read8(client, F75375_REG_VERSION);
+		if (chipid == 0x0306 && vendid == 0x1934) {
+			kind = f75375;
+		} else if (chipid == 0x0204 && vendid == 0x1934) {
+			kind = f75373;
+		} else {
+			dev_err(&adapter->dev,
+				"failed,%02X,%02X,%02X\n",
+				chipid, version, vendid);
+			return -ENODEV;
+		}
+	}
+
+	if (kind == f75375) {
+		name = "f75375";
+	} else if (kind == f75373) {
+		name = "f75373";
+	}
+	dev_info(&adapter->dev, "found %s version: %02X\n", name, version);
+	strlcpy(info->type, name, I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int __init sensors_f75375_init(void)
+{
+	return i2c_add_driver(&f75375_driver);
+}
+
+static void __exit sensors_f75375_exit(void)
+{
+	i2c_del_driver(&f75375_driver);
+}
+
+MODULE_AUTHOR("Riku Voipio <riku.voipio@movial.fi>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("F75373/F75375 hardware monitoring driver");
+
+module_init(sensors_f75375_init);
+module_exit(sensors_f75375_exit);
diff --git a/drivers/hwmon/fb_panther_plus.c b/drivers/hwmon/fb_panther_plus.c
new file mode 100644
index 0000000..1dde2ec
--- /dev/null
+++ b/drivers/hwmon/fb_panther_plus.c
@@ -0,0 +1,722 @@
+/*
+ * fb_panther_plus.c - Driver for Panther+ microserver
+ *
+ * Copyright 2014-present Facebook. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+//#define DEBUG
+
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+
+#ifdef DEBUG
+
+#define PP_DEBUG(fmt, ...) do {                   \
+  printk(KERN_DEBUG "%s:%d " fmt "\n",            \
+         __FUNCTION__, __LINE__, ##__VA_ARGS__);  \
+} while (0)
+
+#else /* !DEBUG */
+
+#define PP_DEBUG(fmt, ...)
+
+#endif
+
+static const unsigned short normal_i2c[] = {
+  0x40, I2C_CLIENT_END
+};
+
+/*
+ * Insmod parameters
+ */
+
+I2C_CLIENT_INSMOD_1(panther_plus);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static const struct i2c_device_id panther_plus_id[] = {
+  { "fb_panther_plus", panther_plus },
+  { },
+};
+MODULE_DEVICE_TABLE(i2c, panther_plus_id);
+
+struct panther_plus_data {
+  struct device *hwmon_dev;
+  struct mutex update_lock;
+};
+
+// Identifies the sysfs attribute panther_plus_show is requesting.
+enum {
+  PANTHER_PLUS_SYSFS_CPU_TEMP,
+  PANTHER_PLUS_SYSFS_DIMM_TEMP,
+  PANTHER_PLUS_SYSFS_GPIO_INPUTS,
+  PANTHER_PLUS_SYSFS_SMS_KCS,
+  PANTHER_PLUS_SYSFS_ALERT_CONTROL,
+  PANTHER_PLUS_SYSFS_ALERT_STATUS,
+  PANTHER_PLUS_SYSFS_DISCOVERY_SPEC_VER,
+  PANTHER_PLUS_SYSFS_DISCOVERY_HW_VER,
+  PANTHER_PLUS_SYSFS_DISCOVERY_MANUFACTURER_ID,
+  PANTHER_PLUS_SYSFS_DISCOVERY_DEVICE_ID,
+  PANTHER_PLUS_SYSFS_DISCOVERY_PRODUCT_ID,
+};
+
+// Function Block ID identifiers.
+enum panther_plus_fbid_en {
+  PANTHER_PLUS_FBID_IPMI_SMS_KCS = 0x0,
+  PANTHER_PLUS_FBID_GPIO_INPUTS = 0xd,
+  PANTHER_PLUS_FBID_READ_REGISTER = 0x10,
+  PANTHER_PLUS_FBID_ALERT_CONTROL = 0xFD,
+  PANTHER_PLUS_FBID_ALERT_STATUS = 0xFE,
+  PANTHER_PLUS_FBID_DISCOVERY = 0xFF,
+};
+
+static inline void panther_plus_make_read(struct i2c_msg *msg,
+                                          u8 addr,
+                                          u8 *buf,
+                                          int len)
+{
+  msg->addr = addr;
+  msg->flags = I2C_M_RD;
+  msg->buf = buf;
+  msg->len = len;
+}
+
+static inline void panther_plus_make_write(struct i2c_msg *msg,
+                                           u8 addr,
+                                           u8 *buf,
+                                           int len)
+{
+  msg->addr = addr;
+  msg->flags = 0;
+  msg->buf = buf;
+  msg->len = len;
+}
+
+static int panther_plus_fbid_io(struct i2c_client *client,
+                                  enum panther_plus_fbid_en fbid,
+                                  const u8 *write_buf, u8 write_len,
+                                  u8 *read_buf, u8 read_len)
+{
+  // The Intel uServer Module Management Interface Spec defines SMBus blocks,
+  // but block sizes exceed the SMBus maximum block sizes
+  // (32, see I2C_SMBUS_BLOCK_MAX).  So we basically have to re-implement the
+  // smbus functions with a larger max.
+  struct i2c_msg msg[2];
+  u8 buf[255];
+  u8 buf_len;
+  int rc;
+  u8 num_msgs = 1;
+
+  if (write_len + 1 > sizeof(buf)) {
+    return -EINVAL;
+  }
+
+  /* first, write the FBID, followed by the write_buf if there is one */
+  buf[0] = fbid;
+  buf_len = 1;
+  if (write_buf) {
+    memcpy(&buf[1], write_buf, write_len);
+    buf_len += write_len;
+  }
+  panther_plus_make_write(&msg[0], client->addr, buf, buf_len);
+
+  /* then, read */
+  if (read_buf) {
+    panther_plus_make_read(&msg[1], client->addr, read_buf, read_len);
+    num_msgs = 2;
+  }
+
+  rc = i2c_transfer(client->adapter, msg, num_msgs);
+  if (rc < 0) {
+    PP_DEBUG("Failed to read FBID: %d, error=%d", fbid, rc);
+    return rc;
+  }
+
+  if (rc != num_msgs) { /* expect 2 */
+    PP_DEBUG("Unexpected rc (%d != %d) when reading FBID: %d", rc, num_msgs, fbid);
+    return -EIO;
+  }
+
+  /* the first byte read should match fbid */
+
+  if (read_buf && read_buf[0] != fbid) {
+    PP_DEBUG("Unexpected FBID returned (%d != %d)", read_buf[0], fbid);
+    return -EIO;
+  }
+
+  return 0;
+}
+
+#define PP_GPIO_POWER_ON 0x1
+#define PP_GPIO_PWRGD_P1V35 (0x1 << 1)
+#define PP_GPIO_RST_EAGE_N (0x1 << 2)
+#define PP_GPIO_FM_BIOS_POST_CMPLT_N (0x1 << 3)
+#define PP_GPIO_IERR_FPGA (0x1 << 4)
+#define PP_GPIO_AVN_PLD_PROCHOT_N (0x1 << 5)
+#define PP_GPIO_BUS1_ERROR (0x1 << 6)
+#define PP_GPIO_AVN_PLD_THERMTRIP_N (0x1 << 7)
+#define PP_GPIO_MCERR_FPGA (0x1 << 8)
+#define PP_GPIO_ERROR_AVN_2 (0x1 << 9)
+#define PP_GPIO_ERROR_AVN_1 (0x1 << 10)
+#define PP_GPIO_ERROR_AVN_0 (0x1 << 11)
+#define PP_GPIO_H_MEMHOT_CO_N (0x1 << 12)
+#define PP_GPIO_SLP_S45_N (0x1 << 13)
+#define PP_GPIO_PLTRST_FPGA_N (0x1 << 14)
+#define PP_GPIO_FPGA_GPI_PWD_FAIL (0x1 << 15)
+#define PP_GPIO_FPGA_GPI_NMI (0x1 << 16)
+#define PP_GPIO_GPI_VCCP_VRHOT_N (0x1 << 17)
+#define PP_GPIO_FPGA_GPI_TMP75_ALERT (0x1 << 18)
+#define PP_GPIO_LPC_CLKRUN_N (0x1 << 19)
+
+static int panther_plus_read_gpio_inputs_value(
+    struct i2c_client *client, u32 *val)
+{
+  int rc;
+  u8 read_buf[5];
+
+  rc = panther_plus_fbid_io(client, PANTHER_PLUS_FBID_GPIO_INPUTS,
+                              NULL, 0, read_buf, sizeof(read_buf));
+  if (rc < 0) {
+    return rc;
+  }
+
+  /*
+   * expect receiving 5 bytes as:
+   * 0xd 0x3 <gpio0-7> <gpio8-15> <gpio9-23>
+   */
+  if (read_buf[1] != 0x3) {
+    PP_DEBUG("Unexpected length %d != 3", read_buf[1]);
+    return -EIO;
+  }
+
+  *val = read_buf[2] | (read_buf[3] << 8) | (read_buf[4] << 16);
+
+  return 0;
+}
+
+static int panther_plus_is_in_post(struct i2c_client *client)
+{
+  u32 val;
+  int rc;
+
+  rc = panther_plus_read_gpio_inputs_value(client, &val);
+  if (rc < 0) {
+    /* failed to read gpio, treat it as in post */
+    return 1;
+  }
+
+  /* if PP_GPIO_FM_BIOS_POST_CMPLT_N is set, post is _not_ done yet */
+  return (val & PP_GPIO_FM_BIOS_POST_CMPLT_N);
+}
+
+static int panther_plus_read_register(struct i2c_client *client,
+                                      u8 reg_idx, u32 *reg_val)
+{
+  u8 write_buf[2];
+  u8 read_buf[8];
+  int rc;
+
+  /* need to send the register index for the reading */
+  write_buf[0] = 0x1;           /* one byte */
+  write_buf[1] = reg_idx;
+
+  rc = panther_plus_fbid_io(client, PANTHER_PLUS_FBID_READ_REGISTER,
+                              write_buf, sizeof(write_buf),
+                              read_buf, sizeof(read_buf));
+  if (rc < 0) {
+    return -EIO;
+  }
+
+  /*
+   * expect receiving 8 bytes as:
+   * 0x10 0x6 <reg_idx> LSB LSB+1 LSB+2 LSB+3 valid
+   */
+  if (read_buf[1] != 0x6
+      || read_buf[2] != reg_idx
+      || read_buf[7] != 0) {
+    return -EIO;
+  }
+
+  *reg_val = read_buf[3] | (read_buf[4] << 8)
+    | (read_buf[5] << 16) | (read_buf[6] << 24);
+
+  PP_DEBUG("Read register %d: 0x%x", reg_idx, *reg_val);
+
+  return 0;
+}
+
+#define PANTHER_PLUS_REG_SOC_TJMAX 0
+#define PANTHER_PLUS_REG_SOC_RUNTIME 1
+#define PANTHER_PLUS_REG_SOC_THERMAL_MARGIN 2
+#define PANTHER_PLUS_REG_SOC_DIMM0_A_TEMP 3
+#define PANTHER_PLUS_REG_SOC_DIMM0_B_TEMP 4
+#define PANTHER_PLUS_REG_SOC_POWER_UNIT 5
+#define PANTHER_PLUS_REG_SOC_POWER_CONSUMPTION 6
+#define PANTHER_PLUS_REG_SOC_POWER_CALC 7
+#define PANTHER_PLUS_REG_SOC_DIMM1_A_TEMP 8
+#define PANTHER_PLUS_REG_SOC_DIMM1_B_TEMP 9
+
+static int panther_plus_read_cpu_temp(struct i2c_client *client, char *ret)
+{
+  int rc;
+  u32 tjmax;
+  u32 tmargin;
+  int val;
+  int temp;
+
+  /*
+   * make sure POST is done, accessing CPU temperature during POST phase could
+   * confusing POST and make it hang
+   */
+  if (panther_plus_is_in_post(client)) {
+    return -EBUSY;
+  }
+
+  mdelay(10);
+
+  /* first read Tjmax: register 0, bit[16-23] */
+  rc = panther_plus_read_register(client, PANTHER_PLUS_REG_SOC_TJMAX, &tjmax);
+  if (rc < 0) {
+    return rc;
+  }
+
+  mdelay(10);
+
+  /* then, read the thermal margin */
+  rc = panther_plus_read_register(client, PANTHER_PLUS_REG_SOC_THERMAL_MARGIN,
+                                  &tmargin);
+  if (rc < 0) {
+    return rc;
+  }
+  /*
+   * thermal margin is 16b 2's complement value representing a number of 1/64
+   * degress centigrade.
+   */
+  tmargin &= 0xFFFF;
+  if ((tmargin & 0x8000)) {
+    /* signed */
+    val = -((tmargin - 1) ^ 0xFFFF);
+  } else {
+    val = tmargin;
+  }
+
+  /*
+   * now val holds the margin (a number of 1/64), add it to the Tjmax.
+   * Times 1000 for lm-sensors.
+   */
+  temp = ((tjmax >> 16) & 0xFF) * 1000 + val * 1000 / 64;
+
+  return sprintf(ret, "%d\n", temp);
+}
+
+static int panther_plus_read_dimm_temp(struct i2c_client *client,
+                                       int dimm, char *ret)
+{
+  int rc;
+  u32 val;
+  int temp;
+
+  /*
+   * make sure POST is done, accessing DIMM temperature will fail anyway if
+   * POST is not done.
+   */
+  if (panther_plus_is_in_post(client)) {
+    return -EBUSY;
+  }
+
+  mdelay(10);
+
+  rc = panther_plus_read_register(client, dimm, &val);
+  if (rc < 0) {
+    return rc;
+  }
+
+  /*
+   * DIMM temperature is encoded in 16b as the following:
+   * b15-b12: TCRIT HIGH LOW SIGN
+   * b11-b08: 128 64 32 16
+   * b07-b04: 8 4 2 1
+   * b03-b00: 0.5 0.25 0.125 0.0625
+   */
+  /* For now, only care about those 12 data bits and SIGN */
+  val &= 0x1FFF;
+  if ((val & 0x1000)) {
+    /* signed */
+    val = -((val - 1) ^ 0x1FFF);
+  }
+
+  /*
+   * now val holds the value as a number of 1/16, times 1000 for lm-sensors */
+  temp =  val * 1000 / 16;
+
+  return sprintf(ret, "%d\n", temp);
+}
+
+static int panther_plus_read_gpio_inputs(struct i2c_client *client, char *ret)
+{
+  u32 val;
+  int rc;
+
+  rc = panther_plus_read_gpio_inputs_value(client, &val);
+  if (rc < 0) {
+    return rc;
+  }
+  return sprintf(ret, "0x%x\n", val);
+}
+
+static int panther_plus_read_sms_kcs(struct i2c_client *client, char *ret)
+{
+  int rc;
+  u8 read_buf[255] = {0x0};
+
+  rc = panther_plus_fbid_io(client, PANTHER_PLUS_FBID_IPMI_SMS_KCS,
+                              NULL, 0, read_buf, sizeof(read_buf));
+  if (rc < 0) {
+    return rc;
+  }
+
+  memcpy(ret, read_buf, read_buf[1]+2);
+
+  return (read_buf[1]+2);
+}
+
+static int panther_plus_write_sms_kcs(struct i2c_client *client, const char *buf, u8 count)
+{
+  int rc;
+
+  rc = panther_plus_fbid_io(client, PANTHER_PLUS_FBID_IPMI_SMS_KCS,
+                              buf, count, NULL, 0);
+  if (rc < 0) {
+    return rc;
+  }
+
+  return count;
+}
+
+static int panther_plus_read_alert_status(struct i2c_client *client, char *ret)
+{
+  int rc;
+  u8 rbuf[5] = {0};
+
+  rc = panther_plus_fbid_io(client, PANTHER_PLUS_FBID_ALERT_STATUS,
+                              NULL, 0, rbuf, sizeof(rbuf));
+  if (rc < 0) {
+    return rc;
+  }
+
+  memcpy(ret, rbuf, rbuf[1]+2);
+
+  return (rbuf[1]+2);
+}
+
+static int panther_plus_read_alert_control(struct i2c_client *client, char *ret)
+{
+  int rc;
+  u8 rbuf[5] = {0};
+
+  rc = panther_plus_fbid_io(client, PANTHER_PLUS_FBID_ALERT_CONTROL,
+                              NULL, 0, rbuf, sizeof(rbuf));
+  if (rc < 0) {
+    return rc;
+  }
+
+  memcpy(ret, rbuf, rbuf[1]+2);
+
+  return (rbuf[1]+2);
+}
+
+static int panther_plus_read_discovery(struct i2c_client *client, char *ret,
+                                       int which_attribute)
+{
+  int rc;
+  u8 datalen;
+#define DISCOVERY_DATA_SIZE 10
+  u8 rbuf[DISCOVERY_DATA_SIZE+2] = {0};
+  rc = panther_plus_fbid_io(client, PANTHER_PLUS_FBID_DISCOVERY,
+                            NULL, 0, rbuf, sizeof(rbuf));
+  if (rc < 0) {
+    return rc;
+  }
+  datalen = rbuf[1];
+  if (datalen < DISCOVERY_DATA_SIZE) {
+    return -EINVAL;
+  }
+  switch (which_attribute) {
+    case PANTHER_PLUS_SYSFS_DISCOVERY_SPEC_VER:
+      return scnprintf(ret, PAGE_SIZE, "%u.%u\n", rbuf[2], rbuf[3]);
+    case PANTHER_PLUS_SYSFS_DISCOVERY_HW_VER:
+      return scnprintf(ret, PAGE_SIZE, "%u.%u\n", rbuf[4], rbuf[5]);
+    case PANTHER_PLUS_SYSFS_DISCOVERY_MANUFACTURER_ID:
+      return scnprintf(ret, PAGE_SIZE, "0x%02X%02X%02X\n", rbuf[8], rbuf[7],
+                       rbuf[6]);
+    case PANTHER_PLUS_SYSFS_DISCOVERY_DEVICE_ID:
+      return scnprintf(ret, PAGE_SIZE, "0x%02X\n", rbuf[9]);
+    case PANTHER_PLUS_SYSFS_DISCOVERY_PRODUCT_ID:
+      return scnprintf(ret, PAGE_SIZE, "0x%02X%02X\n", rbuf[11], rbuf[10]);
+    default:
+      return -EINVAL;
+  }
+  return -EINVAL;
+}
+
+static int panther_plus_write_alert_control(struct i2c_client *client, const char *buf, u8 count)
+{
+  int rc;
+
+  rc = panther_plus_fbid_io(client, PANTHER_PLUS_FBID_ALERT_CONTROL,
+                              buf, count, NULL, 0);
+  if (rc < 0) {
+    return rc;
+  }
+
+  return count;
+}
+
+static ssize_t panther_plus_show(struct device *dev,
+                                 struct device_attribute *attr,
+                                 char *buf)
+{
+  struct i2c_client *client = to_i2c_client(dev);
+  struct panther_plus_data *data = i2c_get_clientdata(client);
+  struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
+  int which = sensor_attr->index;
+  int rc = -EIO;
+
+  mutex_lock(&data->update_lock);
+  switch (which) {
+  case PANTHER_PLUS_SYSFS_CPU_TEMP:
+    rc = panther_plus_read_cpu_temp(client, buf);
+    break;
+  case PANTHER_PLUS_SYSFS_DIMM_TEMP:
+    rc = panther_plus_read_dimm_temp(client, sensor_attr->nr, buf);
+    break;
+  case PANTHER_PLUS_SYSFS_GPIO_INPUTS:
+    rc = panther_plus_read_gpio_inputs(client, buf);
+    break;
+  case PANTHER_PLUS_SYSFS_SMS_KCS:
+    rc = panther_plus_read_sms_kcs(client, buf);
+    break;
+  case PANTHER_PLUS_SYSFS_ALERT_STATUS:
+    rc = panther_plus_read_alert_status(client, buf);
+    break;
+  case PANTHER_PLUS_SYSFS_ALERT_CONTROL:
+    rc = panther_plus_read_alert_control(client, buf);
+    break;
+  case PANTHER_PLUS_SYSFS_DISCOVERY_SPEC_VER:
+  case PANTHER_PLUS_SYSFS_DISCOVERY_HW_VER:
+  case PANTHER_PLUS_SYSFS_DISCOVERY_MANUFACTURER_ID:
+  case PANTHER_PLUS_SYSFS_DISCOVERY_DEVICE_ID:
+  case PANTHER_PLUS_SYSFS_DISCOVERY_PRODUCT_ID:
+    rc = panther_plus_read_discovery(client, buf, which);
+  default:
+    break;
+  }
+
+  /*
+   * With the current i2c driver, the bus/kernel could hang if accessing the
+   * FPGA too fast. Adding some delay here until we fix the i2c driver bug
+   */
+  mdelay(10);
+
+  mutex_unlock(&data->update_lock);
+
+  return rc;
+}
+
+static ssize_t panther_plus_set(struct device *dev,
+                                 struct device_attribute *attr,
+                                 const char *buf, size_t count)
+{
+  struct i2c_client *client = to_i2c_client(dev);
+  struct panther_plus_data *data = i2c_get_clientdata(client);
+  struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
+  int which = sensor_attr->index;
+
+  int rc = -EIO;
+  mutex_lock(&data->update_lock);
+  switch (which) {
+    case PANTHER_PLUS_SYSFS_SMS_KCS:
+      rc = panther_plus_write_sms_kcs(client, buf, count);
+      break;
+    case PANTHER_PLUS_SYSFS_ALERT_CONTROL:
+      rc = panther_plus_write_alert_control(client, buf, count);
+      break;
+    default:
+      break;
+  }
+
+  mdelay(10);
+
+  mutex_unlock(&data->update_lock);
+
+  return rc;
+}
+
+static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, panther_plus_show, NULL,
+                            0, PANTHER_PLUS_SYSFS_CPU_TEMP);
+static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, panther_plus_show, NULL,
+                            PANTHER_PLUS_REG_SOC_DIMM0_A_TEMP,
+                            PANTHER_PLUS_SYSFS_DIMM_TEMP);
+static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, panther_plus_show, NULL,
+                            PANTHER_PLUS_REG_SOC_DIMM0_B_TEMP,
+                            PANTHER_PLUS_SYSFS_DIMM_TEMP);
+static SENSOR_DEVICE_ATTR_2(temp4_input, S_IRUGO, panther_plus_show, NULL,
+                            PANTHER_PLUS_REG_SOC_DIMM1_A_TEMP,
+                            PANTHER_PLUS_SYSFS_DIMM_TEMP);
+static SENSOR_DEVICE_ATTR_2(temp5_input, S_IRUGO, panther_plus_show, NULL,
+                            PANTHER_PLUS_REG_SOC_DIMM1_B_TEMP,
+                            PANTHER_PLUS_SYSFS_DIMM_TEMP);
+static SENSOR_DEVICE_ATTR_2(gpio_inputs, S_IRUGO, panther_plus_show, NULL,
+                            0, PANTHER_PLUS_SYSFS_GPIO_INPUTS);
+static SENSOR_DEVICE_ATTR_2(sms_kcs, S_IWUSR | S_IRUGO, panther_plus_show, panther_plus_set,
+                            0, PANTHER_PLUS_SYSFS_SMS_KCS);
+static SENSOR_DEVICE_ATTR_2(alert_status, S_IRUGO, panther_plus_show, NULL,
+                            0, PANTHER_PLUS_SYSFS_ALERT_STATUS);
+static SENSOR_DEVICE_ATTR_2(alert_control, S_IWUSR | S_IRUGO, panther_plus_show, panther_plus_set,
+                            0, PANTHER_PLUS_SYSFS_ALERT_CONTROL);
+static SENSOR_DEVICE_ATTR_2(spec_ver, S_IRUGO, panther_plus_show, NULL,
+                            0, PANTHER_PLUS_SYSFS_DISCOVERY_SPEC_VER);
+static SENSOR_DEVICE_ATTR_2(hw_ver, S_IRUGO, panther_plus_show, NULL,
+                            0, PANTHER_PLUS_SYSFS_DISCOVERY_HW_VER);
+static SENSOR_DEVICE_ATTR_2(manufacturer_id, S_IRUGO, panther_plus_show, NULL,
+                            0, PANTHER_PLUS_SYSFS_DISCOVERY_MANUFACTURER_ID);
+static SENSOR_DEVICE_ATTR_2(device_id, S_IRUGO, panther_plus_show, NULL,
+                            0, PANTHER_PLUS_SYSFS_DISCOVERY_DEVICE_ID);
+static SENSOR_DEVICE_ATTR_2(product_id, S_IRUGO, panther_plus_show, NULL,
+                            0, PANTHER_PLUS_SYSFS_DISCOVERY_PRODUCT_ID);
+
+static struct attribute *panther_plus_attributes[] = {
+  &sensor_dev_attr_temp1_input.dev_attr.attr,
+  &sensor_dev_attr_temp2_input.dev_attr.attr,
+  &sensor_dev_attr_temp3_input.dev_attr.attr,
+  &sensor_dev_attr_temp4_input.dev_attr.attr,
+  &sensor_dev_attr_temp5_input.dev_attr.attr,
+  &sensor_dev_attr_gpio_inputs.dev_attr.attr,
+  &sensor_dev_attr_sms_kcs.dev_attr.attr,
+  &sensor_dev_attr_alert_status.dev_attr.attr,
+  &sensor_dev_attr_alert_control.dev_attr.attr,
+  &sensor_dev_attr_spec_ver.dev_attr.attr,
+  &sensor_dev_attr_hw_ver.dev_attr.attr,
+  &sensor_dev_attr_manufacturer_id.dev_attr.attr,
+  &sensor_dev_attr_device_id.dev_attr.attr,
+  &sensor_dev_attr_product_id.dev_attr.attr,
+  NULL
+};
+
+static const struct attribute_group panther_plus_group = {
+  .attrs = panther_plus_attributes,
+};
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int panther_plus_detect(struct i2c_client *client, int kind,
+                               struct i2c_board_info *info)
+{
+  /*
+   * We don't currently do any detection of the Panther+, although
+   * presumably we could try to query FBID 0xFF for HW ID.
+   */
+  strlcpy(info->type, "panther_plus", I2C_NAME_SIZE);
+  return 0;
+}
+
+static int panther_plus_probe(struct i2c_client *client,
+                              const struct i2c_device_id *id)
+{
+  struct panther_plus_data *data;
+  int err;
+
+  data = kzalloc(sizeof(struct panther_plus_data), GFP_KERNEL);
+  if (!data) {
+    err = -ENOMEM;
+    goto exit;
+  }
+
+  i2c_set_clientdata(client, data);
+  mutex_init(&data->update_lock);
+
+  /* Register sysfs hooks */
+  if ((err = sysfs_create_group(&client->dev.kobj, &panther_plus_group)))
+    goto exit_free;
+
+  data->hwmon_dev = hwmon_device_register(&client->dev);
+  if (IS_ERR(data->hwmon_dev)) {
+    err = PTR_ERR(data->hwmon_dev);
+    goto exit_remove_files;
+  }
+
+  printk(KERN_INFO "Panther+ driver successfully loaded.\n");
+
+  return 0;
+
+ exit_remove_files:
+  sysfs_remove_group(&client->dev.kobj, &panther_plus_group);
+ exit_free:
+  kfree(data);
+ exit:
+  return err;
+}
+
+static int panther_plus_remove(struct i2c_client *client)
+{
+  struct panther_plus_data *data = i2c_get_clientdata(client);
+
+  hwmon_device_unregister(data->hwmon_dev);
+  sysfs_remove_group(&client->dev.kobj, &panther_plus_group);
+
+  kfree(data);
+  return 0;
+}
+
+static struct i2c_driver panther_plus_driver = {
+  .class    = I2C_CLASS_HWMON,
+  .driver = {
+    .name = "panther_plus",
+  },
+  .probe    = panther_plus_probe,
+  .remove   = panther_plus_remove,
+  .id_table = panther_plus_id,
+  .detect   = panther_plus_detect,
+  .address_data = &addr_data,
+};
+
+static int __init sensors_panther_plus_init(void)
+{
+  return i2c_add_driver(&panther_plus_driver);
+}
+
+static void __exit sensors_panther_plus_exit(void)
+{
+  i2c_del_driver(&panther_plus_driver);
+}
+
+MODULE_AUTHOR("Tian Fang <tfang@fb.com>");
+MODULE_DESCRIPTION("Panther+ Driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_panther_plus_init);
+module_exit(sensors_panther_plus_exit);
diff --git a/drivers/hwmon/fscher.c b/drivers/hwmon/fscher.c
new file mode 100644
index 0000000..12c70e4
--- /dev/null
+++ b/drivers/hwmon/fscher.c
@@ -0,0 +1,680 @@
+/*
+ * fscher.c - Part of lm_sensors, Linux kernel modules for hardware
+ * monitoring
+ * Copyright (C) 2003, 2004 Reinhard Nissl <rnissl@gmx.de>
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/* 
+ *  fujitsu siemens hermes chip, 
+ *  module based on fscpos.c 
+ *  Copyright (C) 2000 Hermann Jung <hej@odn.de>
+ *  Copyright (C) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
+ *  and Philip Edelbrock <phil@netroedge.com>
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+
+/*
+ * Addresses to scan
+ */
+
+static const unsigned short normal_i2c[] = { 0x73, I2C_CLIENT_END };
+
+/*
+ * Insmod parameters
+ */
+
+I2C_CLIENT_INSMOD_1(fscher);
+
+/*
+ * The FSCHER registers
+ */
+
+/* chip identification */
+#define FSCHER_REG_IDENT_0		0x00
+#define FSCHER_REG_IDENT_1		0x01
+#define FSCHER_REG_IDENT_2		0x02
+#define FSCHER_REG_REVISION		0x03
+
+/* global control and status */
+#define FSCHER_REG_EVENT_STATE		0x04
+#define FSCHER_REG_CONTROL		0x05
+
+/* watchdog */
+#define FSCHER_REG_WDOG_PRESET		0x28
+#define FSCHER_REG_WDOG_STATE		0x23
+#define FSCHER_REG_WDOG_CONTROL		0x21
+
+/* fan 0 */
+#define FSCHER_REG_FAN0_MIN		0x55
+#define FSCHER_REG_FAN0_ACT		0x0e
+#define FSCHER_REG_FAN0_STATE		0x0d
+#define FSCHER_REG_FAN0_RIPPLE		0x0f
+
+/* fan 1 */
+#define FSCHER_REG_FAN1_MIN		0x65
+#define FSCHER_REG_FAN1_ACT		0x6b
+#define FSCHER_REG_FAN1_STATE		0x62
+#define FSCHER_REG_FAN1_RIPPLE		0x6f
+
+/* fan 2 */
+#define FSCHER_REG_FAN2_MIN		0xb5
+#define FSCHER_REG_FAN2_ACT		0xbb
+#define FSCHER_REG_FAN2_STATE		0xb2
+#define FSCHER_REG_FAN2_RIPPLE		0xbf
+
+/* voltage supervision */
+#define FSCHER_REG_VOLT_12		0x45
+#define FSCHER_REG_VOLT_5		0x42
+#define FSCHER_REG_VOLT_BATT		0x48
+
+/* temperature 0 */
+#define FSCHER_REG_TEMP0_ACT		0x64
+#define FSCHER_REG_TEMP0_STATE		0x71
+
+/* temperature 1 */
+#define FSCHER_REG_TEMP1_ACT		0x32
+#define FSCHER_REG_TEMP1_STATE		0x81
+
+/* temperature 2 */
+#define FSCHER_REG_TEMP2_ACT		0x35
+#define FSCHER_REG_TEMP2_STATE		0x91
+
+/*
+ * Functions declaration
+ */
+
+static int fscher_probe(struct i2c_client *client,
+			const struct i2c_device_id *id);
+static int fscher_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info);
+static int fscher_remove(struct i2c_client *client);
+static struct fscher_data *fscher_update_device(struct device *dev);
+static void fscher_init_client(struct i2c_client *client);
+
+static int fscher_read_value(struct i2c_client *client, u8 reg);
+static int fscher_write_value(struct i2c_client *client, u8 reg, u8 value);
+
+/*
+ * Driver data (common to all clients)
+ */
+ 
+static const struct i2c_device_id fscher_id[] = {
+	{ "fscher", fscher },
+	{ }
+};
+
+static struct i2c_driver fscher_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "fscher",
+	},
+	.probe		= fscher_probe,
+	.remove		= fscher_remove,
+	.id_table	= fscher_id,
+	.detect		= fscher_detect,
+	.address_data	= &addr_data,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct fscher_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	char valid; /* zero until following fields are valid */
+	unsigned long last_updated; /* in jiffies */
+
+	/* register values */
+	u8 revision;		/* revision of chip */
+	u8 global_event;	/* global event status */
+	u8 global_control;	/* global control register */
+	u8 watchdog[3];		/* watchdog */
+	u8 volt[3];		/* 12, 5, battery voltage */ 
+	u8 temp_act[3];		/* temperature */
+	u8 temp_status[3];	/* status of sensor */
+	u8 fan_act[3];		/* fans revolutions per second */
+	u8 fan_status[3];	/* fan status */
+	u8 fan_min[3];		/* fan min value for rps */
+	u8 fan_ripple[3];	/* divider for rps */
+};
+
+/*
+ * Sysfs stuff
+ */
+
+#define sysfs_r(kind, sub, offset, reg) \
+static ssize_t show_##kind##sub (struct fscher_data *, char *, int); \
+static ssize_t show_##kind##offset##sub (struct device *, struct device_attribute *attr, char *); \
+static ssize_t show_##kind##offset##sub (struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+	struct fscher_data *data = fscher_update_device(dev); \
+	return show_##kind##sub(data, buf, (offset)); \
+}
+
+#define sysfs_w(kind, sub, offset, reg) \
+static ssize_t set_##kind##sub (struct i2c_client *, struct fscher_data *, const char *, size_t, int, int); \
+static ssize_t set_##kind##offset##sub (struct device *, struct device_attribute *attr, const char *, size_t); \
+static ssize_t set_##kind##offset##sub (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
+{ \
+	struct i2c_client *client = to_i2c_client(dev); \
+	struct fscher_data *data = i2c_get_clientdata(client); \
+	return set_##kind##sub(client, data, buf, count, (offset), reg); \
+}
+
+#define sysfs_rw_n(kind, sub, offset, reg) \
+sysfs_r(kind, sub, offset, reg) \
+sysfs_w(kind, sub, offset, reg) \
+static DEVICE_ATTR(kind##offset##sub, S_IRUGO | S_IWUSR, show_##kind##offset##sub, set_##kind##offset##sub);
+
+#define sysfs_rw(kind, sub, reg) \
+sysfs_r(kind, sub, 0, reg) \
+sysfs_w(kind, sub, 0, reg) \
+static DEVICE_ATTR(kind##sub, S_IRUGO | S_IWUSR, show_##kind##0##sub, set_##kind##0##sub);
+
+#define sysfs_ro_n(kind, sub, offset, reg) \
+sysfs_r(kind, sub, offset, reg) \
+static DEVICE_ATTR(kind##offset##sub, S_IRUGO, show_##kind##offset##sub, NULL);
+
+#define sysfs_ro(kind, sub, reg) \
+sysfs_r(kind, sub, 0, reg) \
+static DEVICE_ATTR(kind, S_IRUGO, show_##kind##0##sub, NULL);
+
+#define sysfs_fan(offset, reg_status, reg_min, reg_ripple, reg_act) \
+sysfs_rw_n(pwm,        , offset, reg_min) \
+sysfs_rw_n(fan, _status, offset, reg_status) \
+sysfs_rw_n(fan, _div   , offset, reg_ripple) \
+sysfs_ro_n(fan, _input , offset, reg_act)
+
+#define sysfs_temp(offset, reg_status, reg_act) \
+sysfs_rw_n(temp, _status, offset, reg_status) \
+sysfs_ro_n(temp, _input , offset, reg_act)
+    
+#define sysfs_in(offset, reg_act) \
+sysfs_ro_n(in, _input, offset, reg_act)
+
+#define sysfs_revision(reg_revision) \
+sysfs_ro(revision, , reg_revision)
+
+#define sysfs_alarms(reg_events) \
+sysfs_ro(alarms, , reg_events)
+
+#define sysfs_control(reg_control) \
+sysfs_rw(control, , reg_control)
+
+#define sysfs_watchdog(reg_control, reg_status, reg_preset) \
+sysfs_rw(watchdog, _control, reg_control) \
+sysfs_rw(watchdog, _status , reg_status) \
+sysfs_rw(watchdog, _preset , reg_preset)
+
+sysfs_fan(1, FSCHER_REG_FAN0_STATE, FSCHER_REG_FAN0_MIN,
+	     FSCHER_REG_FAN0_RIPPLE, FSCHER_REG_FAN0_ACT)
+sysfs_fan(2, FSCHER_REG_FAN1_STATE, FSCHER_REG_FAN1_MIN,
+	     FSCHER_REG_FAN1_RIPPLE, FSCHER_REG_FAN1_ACT)
+sysfs_fan(3, FSCHER_REG_FAN2_STATE, FSCHER_REG_FAN2_MIN,
+	     FSCHER_REG_FAN2_RIPPLE, FSCHER_REG_FAN2_ACT)
+
+sysfs_temp(1, FSCHER_REG_TEMP0_STATE, FSCHER_REG_TEMP0_ACT)
+sysfs_temp(2, FSCHER_REG_TEMP1_STATE, FSCHER_REG_TEMP1_ACT)
+sysfs_temp(3, FSCHER_REG_TEMP2_STATE, FSCHER_REG_TEMP2_ACT)
+
+sysfs_in(0, FSCHER_REG_VOLT_12)
+sysfs_in(1, FSCHER_REG_VOLT_5)
+sysfs_in(2, FSCHER_REG_VOLT_BATT)
+
+sysfs_revision(FSCHER_REG_REVISION)
+sysfs_alarms(FSCHER_REG_EVENTS)
+sysfs_control(FSCHER_REG_CONTROL)
+sysfs_watchdog(FSCHER_REG_WDOG_CONTROL, FSCHER_REG_WDOG_STATE, FSCHER_REG_WDOG_PRESET)
+  
+static struct attribute *fscher_attributes[] = {
+	&dev_attr_revision.attr,
+	&dev_attr_alarms.attr,
+	&dev_attr_control.attr,
+
+	&dev_attr_watchdog_status.attr,
+	&dev_attr_watchdog_control.attr,
+	&dev_attr_watchdog_preset.attr,
+
+	&dev_attr_in0_input.attr,
+	&dev_attr_in1_input.attr,
+	&dev_attr_in2_input.attr,
+
+	&dev_attr_fan1_status.attr,
+	&dev_attr_fan1_div.attr,
+	&dev_attr_fan1_input.attr,
+	&dev_attr_pwm1.attr,
+	&dev_attr_fan2_status.attr,
+	&dev_attr_fan2_div.attr,
+	&dev_attr_fan2_input.attr,
+	&dev_attr_pwm2.attr,
+	&dev_attr_fan3_status.attr,
+	&dev_attr_fan3_div.attr,
+	&dev_attr_fan3_input.attr,
+	&dev_attr_pwm3.attr,
+
+	&dev_attr_temp1_status.attr,
+	&dev_attr_temp1_input.attr,
+	&dev_attr_temp2_status.attr,
+	&dev_attr_temp2_input.attr,
+	&dev_attr_temp3_status.attr,
+	&dev_attr_temp3_input.attr,
+	NULL
+};
+
+static const struct attribute_group fscher_group = {
+	.attrs = fscher_attributes,
+};
+
+/*
+ * Real code
+ */
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int fscher_detect(struct i2c_client *new_client, int kind,
+			 struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = new_client->adapter;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	/* Do the remaining detection unless force or force_fscher parameter */
+	if (kind < 0) {
+		if ((i2c_smbus_read_byte_data(new_client,
+		     FSCHER_REG_IDENT_0) != 0x48)	/* 'H' */
+		 || (i2c_smbus_read_byte_data(new_client,
+		     FSCHER_REG_IDENT_1) != 0x45)	/* 'E' */
+		 || (i2c_smbus_read_byte_data(new_client,
+		     FSCHER_REG_IDENT_2) != 0x52))	/* 'R' */
+			return -ENODEV;
+	}
+
+	strlcpy(info->type, "fscher", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int fscher_probe(struct i2c_client *new_client,
+			const struct i2c_device_id *id)
+{
+	struct fscher_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct fscher_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(new_client, data);
+	data->valid = 0;
+	mutex_init(&data->update_lock);
+
+	fscher_init_client(new_client);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&new_client->dev.kobj, &fscher_group)))
+		goto exit_free;
+
+	data->hwmon_dev = hwmon_device_register(&new_client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove_files;
+	}
+
+	return 0;
+
+exit_remove_files:
+	sysfs_remove_group(&new_client->dev.kobj, &fscher_group);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+static int fscher_remove(struct i2c_client *client)
+{
+	struct fscher_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &fscher_group);
+
+	kfree(data);
+	return 0;
+}
+
+static int fscher_read_value(struct i2c_client *client, u8 reg)
+{
+	dev_dbg(&client->dev, "read reg 0x%02x\n", reg);
+
+	return i2c_smbus_read_byte_data(client, reg);
+}
+
+static int fscher_write_value(struct i2c_client *client, u8 reg, u8 value)
+{
+	dev_dbg(&client->dev, "write reg 0x%02x, val 0x%02x\n",
+		reg, value);
+
+	return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+/* Called when we have found a new FSC Hermes. */
+static void fscher_init_client(struct i2c_client *client)
+{
+	struct fscher_data *data = i2c_get_clientdata(client);
+
+	/* Read revision from chip */
+	data->revision =  fscher_read_value(client, FSCHER_REG_REVISION);
+}
+
+static struct fscher_data *fscher_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct fscher_data *data = i2c_get_clientdata(client);
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) {
+
+		dev_dbg(&client->dev, "Starting fscher update\n");
+
+		data->temp_act[0] = fscher_read_value(client, FSCHER_REG_TEMP0_ACT);
+		data->temp_act[1] = fscher_read_value(client, FSCHER_REG_TEMP1_ACT);
+		data->temp_act[2] = fscher_read_value(client, FSCHER_REG_TEMP2_ACT);
+		data->temp_status[0] = fscher_read_value(client, FSCHER_REG_TEMP0_STATE);
+		data->temp_status[1] = fscher_read_value(client, FSCHER_REG_TEMP1_STATE);
+		data->temp_status[2] = fscher_read_value(client, FSCHER_REG_TEMP2_STATE);
+
+		data->volt[0] = fscher_read_value(client, FSCHER_REG_VOLT_12);
+		data->volt[1] = fscher_read_value(client, FSCHER_REG_VOLT_5);
+		data->volt[2] = fscher_read_value(client, FSCHER_REG_VOLT_BATT);
+
+		data->fan_act[0] = fscher_read_value(client, FSCHER_REG_FAN0_ACT);
+		data->fan_act[1] = fscher_read_value(client, FSCHER_REG_FAN1_ACT);
+		data->fan_act[2] = fscher_read_value(client, FSCHER_REG_FAN2_ACT);
+		data->fan_status[0] = fscher_read_value(client, FSCHER_REG_FAN0_STATE);
+		data->fan_status[1] = fscher_read_value(client, FSCHER_REG_FAN1_STATE);
+		data->fan_status[2] = fscher_read_value(client, FSCHER_REG_FAN2_STATE);
+		data->fan_min[0] = fscher_read_value(client, FSCHER_REG_FAN0_MIN);
+		data->fan_min[1] = fscher_read_value(client, FSCHER_REG_FAN1_MIN);
+		data->fan_min[2] = fscher_read_value(client, FSCHER_REG_FAN2_MIN);
+		data->fan_ripple[0] = fscher_read_value(client, FSCHER_REG_FAN0_RIPPLE);
+		data->fan_ripple[1] = fscher_read_value(client, FSCHER_REG_FAN1_RIPPLE);
+		data->fan_ripple[2] = fscher_read_value(client, FSCHER_REG_FAN2_RIPPLE);
+
+		data->watchdog[0] = fscher_read_value(client, FSCHER_REG_WDOG_PRESET);
+		data->watchdog[1] = fscher_read_value(client, FSCHER_REG_WDOG_STATE);
+		data->watchdog[2] = fscher_read_value(client, FSCHER_REG_WDOG_CONTROL);
+
+		data->global_event = fscher_read_value(client, FSCHER_REG_EVENT_STATE);
+		data->global_control = fscher_read_value(client,
+							FSCHER_REG_CONTROL);
+
+		data->last_updated = jiffies;
+		data->valid = 1;                 
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+
+
+#define FAN_INDEX_FROM_NUM(nr)	((nr) - 1)
+
+static ssize_t set_fan_status(struct i2c_client *client, struct fscher_data *data,
+			      const char *buf, size_t count, int nr, int reg)
+{
+	/* bits 0..1, 3..7 reserved => mask with 0x04 */  
+	unsigned long v = simple_strtoul(buf, NULL, 10) & 0x04;
+	
+	mutex_lock(&data->update_lock);
+	data->fan_status[FAN_INDEX_FROM_NUM(nr)] &= ~v;
+	fscher_write_value(client, reg, v);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_fan_status(struct fscher_data *data, char *buf, int nr)
+{
+	/* bits 0..1, 3..7 reserved => mask with 0x04 */  
+	return sprintf(buf, "%u\n", data->fan_status[FAN_INDEX_FROM_NUM(nr)] & 0x04);
+}
+
+static ssize_t set_pwm(struct i2c_client *client, struct fscher_data *data,
+		       const char *buf, size_t count, int nr, int reg)
+{
+	unsigned long v = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->fan_min[FAN_INDEX_FROM_NUM(nr)] = v > 0xff ? 0xff : v;
+	fscher_write_value(client, reg, data->fan_min[FAN_INDEX_FROM_NUM(nr)]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_pwm(struct fscher_data *data, char *buf, int nr)
+{
+	return sprintf(buf, "%u\n", data->fan_min[FAN_INDEX_FROM_NUM(nr)]);
+}
+
+static ssize_t set_fan_div(struct i2c_client *client, struct fscher_data *data,
+			   const char *buf, size_t count, int nr, int reg)
+{
+	/* supported values: 2, 4, 8 */
+	unsigned long v = simple_strtoul(buf, NULL, 10);
+
+	switch (v) {
+	case 2: v = 1; break;
+	case 4: v = 2; break;
+	case 8: v = 3; break;
+	default:
+		dev_err(&client->dev, "fan_div value %ld not "
+			 "supported. Choose one of 2, 4 or 8!\n", v);
+		return -EINVAL;
+	}
+
+	mutex_lock(&data->update_lock);
+
+	/* bits 2..7 reserved => mask with 0x03 */
+	data->fan_ripple[FAN_INDEX_FROM_NUM(nr)] &= ~0x03;
+	data->fan_ripple[FAN_INDEX_FROM_NUM(nr)] |= v;
+
+	fscher_write_value(client, reg, data->fan_ripple[FAN_INDEX_FROM_NUM(nr)]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_fan_div(struct fscher_data *data, char *buf, int nr)
+{
+	/* bits 2..7 reserved => mask with 0x03 */  
+	return sprintf(buf, "%u\n", 1 << (data->fan_ripple[FAN_INDEX_FROM_NUM(nr)] & 0x03));
+}
+
+#define RPM_FROM_REG(val)	(val*60)
+
+static ssize_t show_fan_input (struct fscher_data *data, char *buf, int nr)
+{
+	return sprintf(buf, "%u\n", RPM_FROM_REG(data->fan_act[FAN_INDEX_FROM_NUM(nr)]));
+}
+
+
+
+#define TEMP_INDEX_FROM_NUM(nr)		((nr) - 1)
+
+static ssize_t set_temp_status(struct i2c_client *client, struct fscher_data *data,
+			       const char *buf, size_t count, int nr, int reg)
+{
+	/* bits 2..7 reserved, 0 read only => mask with 0x02 */  
+	unsigned long v = simple_strtoul(buf, NULL, 10) & 0x02;
+
+	mutex_lock(&data->update_lock);
+	data->temp_status[TEMP_INDEX_FROM_NUM(nr)] &= ~v;
+	fscher_write_value(client, reg, v);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_temp_status(struct fscher_data *data, char *buf, int nr)
+{
+	/* bits 2..7 reserved => mask with 0x03 */
+	return sprintf(buf, "%u\n", data->temp_status[TEMP_INDEX_FROM_NUM(nr)] & 0x03);
+}
+
+#define TEMP_FROM_REG(val)	(((val) - 128) * 1000)
+
+static ssize_t show_temp_input(struct fscher_data *data, char *buf, int nr)
+{
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_act[TEMP_INDEX_FROM_NUM(nr)]));
+}
+
+/*
+ * The final conversion is specified in sensors.conf, as it depends on
+ * mainboard specific values. We export the registers contents as
+ * pseudo-hundredths-of-Volts (range 0V - 2.55V). Not that it makes much
+ * sense per se, but it minimizes the conversions count and keeps the
+ * values within a usual range.
+ */
+#define VOLT_FROM_REG(val)	((val) * 10)
+
+static ssize_t show_in_input(struct fscher_data *data, char *buf, int nr)
+{
+	return sprintf(buf, "%u\n", VOLT_FROM_REG(data->volt[nr]));
+}
+
+
+
+static ssize_t show_revision(struct fscher_data *data, char *buf, int nr)
+{
+	return sprintf(buf, "%u\n", data->revision);
+}
+
+
+
+static ssize_t show_alarms(struct fscher_data *data, char *buf, int nr)
+{
+	/* bits 2, 5..6 reserved => mask with 0x9b */
+	return sprintf(buf, "%u\n", data->global_event & 0x9b);
+}
+
+
+
+static ssize_t set_control(struct i2c_client *client, struct fscher_data *data,
+			   const char *buf, size_t count, int nr, int reg)
+{
+	/* bits 1..7 reserved => mask with 0x01 */  
+	unsigned long v = simple_strtoul(buf, NULL, 10) & 0x01;
+
+	mutex_lock(&data->update_lock);
+	data->global_control = v;
+	fscher_write_value(client, reg, v);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_control(struct fscher_data *data, char *buf, int nr)
+{
+	/* bits 1..7 reserved => mask with 0x01 */
+	return sprintf(buf, "%u\n", data->global_control & 0x01);
+}
+
+
+
+static ssize_t set_watchdog_control(struct i2c_client *client, struct
+				    fscher_data *data, const char *buf, size_t count,
+				    int nr, int reg)
+{
+	/* bits 0..3 reserved => mask with 0xf0 */  
+	unsigned long v = simple_strtoul(buf, NULL, 10) & 0xf0;
+
+	mutex_lock(&data->update_lock);
+	data->watchdog[2] &= ~0xf0;
+	data->watchdog[2] |= v;
+	fscher_write_value(client, reg, data->watchdog[2]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_watchdog_control(struct fscher_data *data, char *buf, int nr)
+{
+	/* bits 0..3 reserved, bit 5 write only => mask with 0xd0 */
+	return sprintf(buf, "%u\n", data->watchdog[2] & 0xd0);
+}
+
+static ssize_t set_watchdog_status(struct i2c_client *client, struct fscher_data *data,
+				   const char *buf, size_t count, int nr, int reg)
+{
+	/* bits 0, 2..7 reserved => mask with 0x02 */  
+	unsigned long v = simple_strtoul(buf, NULL, 10) & 0x02;
+
+	mutex_lock(&data->update_lock);
+	data->watchdog[1] &= ~v;
+	fscher_write_value(client, reg, v);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_watchdog_status(struct fscher_data *data, char *buf, int nr)
+{
+	/* bits 0, 2..7 reserved => mask with 0x02 */
+	return sprintf(buf, "%u\n", data->watchdog[1] & 0x02);
+}
+
+static ssize_t set_watchdog_preset(struct i2c_client *client, struct fscher_data *data,
+				   const char *buf, size_t count, int nr, int reg)
+{
+	unsigned long v = simple_strtoul(buf, NULL, 10) & 0xff;
+	
+	mutex_lock(&data->update_lock);
+	data->watchdog[0] = v;
+	fscher_write_value(client, reg, data->watchdog[0]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_watchdog_preset(struct fscher_data *data, char *buf, int nr)
+{
+	return sprintf(buf, "%u\n", data->watchdog[0]);
+}
+
+static int __init sensors_fscher_init(void)
+{
+	return i2c_add_driver(&fscher_driver);
+}
+
+static void __exit sensors_fscher_exit(void)
+{
+	i2c_del_driver(&fscher_driver);
+}
+
+MODULE_AUTHOR("Reinhard Nissl <rnissl@gmx.de>");
+MODULE_DESCRIPTION("FSC Hermes driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_fscher_init);
+module_exit(sensors_fscher_exit);
diff --git a/drivers/hwmon/fschmd.c b/drivers/hwmon/fschmd.c
new file mode 100644
index 0000000..9671703
--- /dev/null
+++ b/drivers/hwmon/fschmd.c
@@ -0,0 +1,866 @@
+/* fschmd.c
+ *
+ * Copyright (C) 2007 Hans de Goede <j.w.r.degoede@hhs.nl>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+ *  Merged Fujitsu Siemens hwmon driver, supporting the Poseidon, Hermes,
+ *  Scylla, Heracles and Heimdall chips
+ *
+ *  Based on the original 2.4 fscscy, 2.6 fscpos, 2.6 fscher and 2.6
+ *  (candidate) fschmd drivers:
+ *  Copyright (C) 2006 Thilo Cestonaro
+ *			<thilo.cestonaro.external@fujitsu-siemens.com>
+ *  Copyright (C) 2004, 2005 Stefan Ott <stefan@desire.ch>
+ *  Copyright (C) 2003, 2004 Reinhard Nissl <rnissl@gmx.de>
+ *  Copyright (c) 2001 Martin Knoblauch <mkn@teraport.de, knobi@knobisoft.de>
+ *  Copyright (C) 2000 Hermann Jung <hej@odn.de>
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+#include <linux/dmi.h>
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x73, I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_5(fscpos, fscher, fscscy, fschrc, fschmd);
+
+/*
+ * The FSCHMD registers and other defines
+ */
+
+/* chip identification */
+#define FSCHMD_REG_IDENT_0		0x00
+#define FSCHMD_REG_IDENT_1		0x01
+#define FSCHMD_REG_IDENT_2		0x02
+#define FSCHMD_REG_REVISION		0x03
+
+/* global control and status */
+#define FSCHMD_REG_EVENT_STATE		0x04
+#define FSCHMD_REG_CONTROL		0x05
+
+#define FSCHMD_CONTROL_ALERT_LED_MASK	0x01
+
+/* watchdog (support to be implemented) */
+#define FSCHMD_REG_WDOG_PRESET		0x28
+#define FSCHMD_REG_WDOG_STATE		0x23
+#define FSCHMD_REG_WDOG_CONTROL		0x21
+
+/* voltages, weird order is to keep the same order as the old drivers */
+static const u8 FSCHMD_REG_VOLT[3] = { 0x45, 0x42, 0x48 };
+
+/* minimum pwm at which the fan is driven (pwm can by increased depending on
+   the temp. Notice that for the scy some fans share there minimum speed.
+   Also notice that with the scy the sensor order is different then with the
+   other chips, this order was in the 2.4 driver and kept for consistency. */
+static const u8 FSCHMD_REG_FAN_MIN[5][6] = {
+	{ 0x55, 0x65 },					/* pos */
+	{ 0x55, 0x65, 0xb5 },				/* her */
+	{ 0x65, 0x65, 0x55, 0xa5, 0x55, 0xa5 },		/* scy */
+	{ 0x55, 0x65, 0xa5, 0xb5 },			/* hrc */
+	{ 0x55, 0x65, 0xa5, 0xb5, 0xc5 },		/* hmd */
+};
+
+/* actual fan speed */
+static const u8 FSCHMD_REG_FAN_ACT[5][6] = {
+	{ 0x0e, 0x6b, 0xab },				/* pos */
+	{ 0x0e, 0x6b, 0xbb },				/* her */
+	{ 0x6b, 0x6c, 0x0e, 0xab, 0x5c, 0xbb },		/* scy */
+	{ 0x0e, 0x6b, 0xab, 0xbb },			/* hrc */
+	{ 0x5b, 0x6b, 0xab, 0xbb, 0xcb },		/* hmd */
+};
+
+/* fan status registers */
+static const u8 FSCHMD_REG_FAN_STATE[5][6] = {
+	{ 0x0d, 0x62, 0xa2 },				/* pos */
+	{ 0x0d, 0x62, 0xb2 },				/* her */
+	{ 0x62, 0x61, 0x0d, 0xa2, 0x52, 0xb2 },		/* scy */
+	{ 0x0d, 0x62, 0xa2, 0xb2 },			/* hrc */
+	{ 0x52, 0x62, 0xa2, 0xb2, 0xc2 },		/* hmd */
+};
+
+/* fan ripple / divider registers */
+static const u8 FSCHMD_REG_FAN_RIPPLE[5][6] = {
+	{ 0x0f, 0x6f, 0xaf },				/* pos */
+	{ 0x0f, 0x6f, 0xbf },				/* her */
+	{ 0x6f, 0x6f, 0x0f, 0xaf, 0x0f, 0xbf },		/* scy */
+	{ 0x0f, 0x6f, 0xaf, 0xbf },			/* hrc */
+	{ 0x5f, 0x6f, 0xaf, 0xbf, 0xcf },		/* hmd */
+};
+
+static const int FSCHMD_NO_FAN_SENSORS[5] = { 3, 3, 6, 4, 5 };
+
+/* Fan status register bitmasks */
+#define FSCHMD_FAN_ALARM_MASK		0x04 /* called fault by FSC! */
+#define FSCHMD_FAN_NOT_PRESENT_MASK	0x08 /* not documented */
+
+
+/* actual temperature registers */
+static const u8 FSCHMD_REG_TEMP_ACT[5][5] = {
+	{ 0x64, 0x32, 0x35 },				/* pos */
+	{ 0x64, 0x32, 0x35 },				/* her */
+	{ 0x64, 0xD0, 0x32, 0x35 },			/* scy */
+	{ 0x64, 0x32, 0x35 },				/* hrc */
+	{ 0x70, 0x80, 0x90, 0xd0, 0xe0 },		/* hmd */
+};
+
+/* temperature state registers */
+static const u8 FSCHMD_REG_TEMP_STATE[5][5] = {
+	{ 0x71, 0x81, 0x91 },				/* pos */
+	{ 0x71, 0x81, 0x91 },				/* her */
+	{ 0x71, 0xd1, 0x81, 0x91 },			/* scy */
+	{ 0x71, 0x81, 0x91 },				/* hrc */
+	{ 0x71, 0x81, 0x91, 0xd1, 0xe1 },		/* hmd */
+};
+
+/* temperature high limit registers, FSC does not document these. Proven to be
+   there with field testing on the fscher and fschrc, already supported / used
+   in the fscscy 2.4 driver. FSC has confirmed that the fschmd has registers
+   at these addresses, but doesn't want to confirm they are the same as with
+   the fscher?? */
+static const u8 FSCHMD_REG_TEMP_LIMIT[5][5] = {
+	{ 0, 0, 0 },					/* pos */
+	{ 0x76, 0x86, 0x96 },				/* her */
+	{ 0x76, 0xd6, 0x86, 0x96 },			/* scy */
+	{ 0x76, 0x86, 0x96 },				/* hrc */
+	{ 0x76, 0x86, 0x96, 0xd6, 0xe6 },		/* hmd */
+};
+
+/* These were found through experimenting with an fscher, currently they are
+   not used, but we keep them around for future reference.
+static const u8 FSCHER_REG_TEMP_AUTOP1[] =	{ 0x73, 0x83, 0x93 };
+static const u8 FSCHER_REG_TEMP_AUTOP2[] =	{ 0x75, 0x85, 0x95 }; */
+
+static const int FSCHMD_NO_TEMP_SENSORS[5] = { 3, 3, 4, 3, 5 };
+
+/* temp status register bitmasks */
+#define FSCHMD_TEMP_WORKING_MASK	0x01
+#define FSCHMD_TEMP_ALERT_MASK		0x02
+/* there only really is an alarm if the sensor is working and alert == 1 */
+#define FSCHMD_TEMP_ALARM_MASK \
+	(FSCHMD_TEMP_WORKING_MASK | FSCHMD_TEMP_ALERT_MASK)
+
+/* our driver name */
+#define FSCHMD_NAME "fschmd"
+
+/*
+ * Functions declarations
+ */
+
+static int fschmd_probe(struct i2c_client *client,
+			const struct i2c_device_id *id);
+static int fschmd_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info);
+static int fschmd_remove(struct i2c_client *client);
+static struct fschmd_data *fschmd_update_device(struct device *dev);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static const struct i2c_device_id fschmd_id[] = {
+	{ "fscpos", fscpos },
+	{ "fscher", fscher },
+	{ "fscscy", fscscy },
+	{ "fschrc", fschrc },
+	{ "fschmd", fschmd },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, fschmd_id);
+
+static struct i2c_driver fschmd_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= FSCHMD_NAME,
+	},
+	.probe		= fschmd_probe,
+	.remove		= fschmd_remove,
+	.id_table	= fschmd_id,
+	.detect		= fschmd_detect,
+	.address_data	= &addr_data,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct fschmd_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	int kind;
+	char valid; /* zero until following fields are valid */
+	unsigned long last_updated; /* in jiffies */
+
+	/* register values */
+	u8 global_control;	/* global control register */
+	u8 volt[3];		/* 12, 5, battery voltage */
+	u8 temp_act[5];		/* temperature */
+	u8 temp_status[5];	/* status of sensor */
+	u8 temp_max[5];		/* high temp limit, notice: undocumented! */
+	u8 fan_act[6];		/* fans revolutions per second */
+	u8 fan_status[6];	/* fan status */
+	u8 fan_min[6];		/* fan min value for rps */
+	u8 fan_ripple[6];	/* divider for rps */
+};
+
+/* Global variables to hold information read from special DMI tables, which are
+   available on FSC machines with an fscher or later chip. */
+static int dmi_mult[3] = { 490, 200, 100 };
+static int dmi_offset[3] = { 0, 0, 0 };
+static int dmi_vref = -1;
+
+
+/*
+ * Sysfs attr show / store functions
+ */
+
+static ssize_t show_in_value(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	const int max_reading[3] = { 14200, 6600, 3300 };
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct fschmd_data *data = fschmd_update_device(dev);
+
+	/* fscher / fschrc - 1 as data->kind is an array index, not a chips */
+	if (data->kind == (fscher - 1) || data->kind >= (fschrc - 1))
+		return sprintf(buf, "%d\n", (data->volt[index] * dmi_vref *
+			dmi_mult[index]) / 255 + dmi_offset[index]);
+	else
+		return sprintf(buf, "%d\n", (data->volt[index] *
+			max_reading[index] + 128) / 255);
+}
+
+
+#define TEMP_FROM_REG(val)	(((val) - 128) * 1000)
+
+static ssize_t show_temp_value(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct fschmd_data *data = fschmd_update_device(dev);
+
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_act[index]));
+}
+
+static ssize_t show_temp_max(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct fschmd_data *data = fschmd_update_device(dev);
+
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[index]));
+}
+
+static ssize_t store_temp_max(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct fschmd_data *data = dev_get_drvdata(dev);
+	long v = simple_strtol(buf, NULL, 10) / 1000;
+
+	v = SENSORS_LIMIT(v, -128, 127) + 128;
+
+	mutex_lock(&data->update_lock);
+	i2c_smbus_write_byte_data(to_i2c_client(dev),
+		FSCHMD_REG_TEMP_LIMIT[data->kind][index], v);
+	data->temp_max[index] = v;
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t show_temp_fault(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct fschmd_data *data = fschmd_update_device(dev);
+
+	/* bit 0 set means sensor working ok, so no fault! */
+	if (data->temp_status[index] & FSCHMD_TEMP_WORKING_MASK)
+		return sprintf(buf, "0\n");
+	else
+		return sprintf(buf, "1\n");
+}
+
+static ssize_t show_temp_alarm(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct fschmd_data *data = fschmd_update_device(dev);
+
+	if ((data->temp_status[index] & FSCHMD_TEMP_ALARM_MASK) ==
+			FSCHMD_TEMP_ALARM_MASK)
+		return sprintf(buf, "1\n");
+	else
+		return sprintf(buf, "0\n");
+}
+
+
+#define RPM_FROM_REG(val)	((val) * 60)
+
+static ssize_t show_fan_value(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct fschmd_data *data = fschmd_update_device(dev);
+
+	return sprintf(buf, "%u\n", RPM_FROM_REG(data->fan_act[index]));
+}
+
+static ssize_t show_fan_div(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct fschmd_data *data = fschmd_update_device(dev);
+
+	/* bits 2..7 reserved => mask with 3 */
+	return sprintf(buf, "%d\n", 1 << (data->fan_ripple[index] & 3));
+}
+
+static ssize_t store_fan_div(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count)
+{
+	u8 reg;
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct fschmd_data *data = dev_get_drvdata(dev);
+	/* supported values: 2, 4, 8 */
+	unsigned long v = simple_strtoul(buf, NULL, 10);
+
+	switch (v) {
+	case 2: v = 1; break;
+	case 4: v = 2; break;
+	case 8: v = 3; break;
+	default:
+		dev_err(dev, "fan_div value %lu not supported. "
+			"Choose one of 2, 4 or 8!\n", v);
+		return -EINVAL;
+	}
+
+	mutex_lock(&data->update_lock);
+
+	reg = i2c_smbus_read_byte_data(to_i2c_client(dev),
+		FSCHMD_REG_FAN_RIPPLE[data->kind][index]);
+
+	/* bits 2..7 reserved => mask with 0x03 */
+	reg &= ~0x03;
+	reg |= v;
+
+	i2c_smbus_write_byte_data(to_i2c_client(dev),
+		FSCHMD_REG_FAN_RIPPLE[data->kind][index], reg);
+
+	data->fan_ripple[index] = reg;
+
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t show_fan_alarm(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct fschmd_data *data = fschmd_update_device(dev);
+
+	if (data->fan_status[index] & FSCHMD_FAN_ALARM_MASK)
+		return sprintf(buf, "1\n");
+	else
+		return sprintf(buf, "0\n");
+}
+
+static ssize_t show_fan_fault(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct fschmd_data *data = fschmd_update_device(dev);
+
+	if (data->fan_status[index] & FSCHMD_FAN_NOT_PRESENT_MASK)
+		return sprintf(buf, "1\n");
+	else
+		return sprintf(buf, "0\n");
+}
+
+
+static ssize_t show_pwm_auto_point1_pwm(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	int val = fschmd_update_device(dev)->fan_min[index];
+
+	/* 0 = allow turning off, 1-255 = 50-100% */
+	if (val)
+		val = val / 2 + 128;
+
+	return sprintf(buf, "%d\n", val);
+}
+
+static ssize_t store_pwm_auto_point1_pwm(struct device *dev,
+	struct device_attribute *devattr, const char *buf, size_t count)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct fschmd_data *data = dev_get_drvdata(dev);
+	unsigned long v = simple_strtoul(buf, NULL, 10);
+
+	/* register: 0 = allow turning off, 1-255 = 50-100% */
+	if (v) {
+		v = SENSORS_LIMIT(v, 128, 255);
+		v = (v - 128) * 2 + 1;
+	}
+
+	mutex_lock(&data->update_lock);
+
+	i2c_smbus_write_byte_data(to_i2c_client(dev),
+		FSCHMD_REG_FAN_MIN[data->kind][index], v);
+	data->fan_min[index] = v;
+
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+
+/* The FSC hwmon family has the ability to force an attached alert led to flash
+   from software, we export this as an alert_led sysfs attr */
+static ssize_t show_alert_led(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	struct fschmd_data *data = fschmd_update_device(dev);
+
+	if (data->global_control & FSCHMD_CONTROL_ALERT_LED_MASK)
+		return sprintf(buf, "1\n");
+	else
+		return sprintf(buf, "0\n");
+}
+
+static ssize_t store_alert_led(struct device *dev,
+	struct device_attribute *devattr, const char *buf, size_t count)
+{
+	u8 reg;
+	struct fschmd_data *data = dev_get_drvdata(dev);
+	unsigned long v = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+
+	reg = i2c_smbus_read_byte_data(to_i2c_client(dev), FSCHMD_REG_CONTROL);
+
+	if (v)
+		reg |= FSCHMD_CONTROL_ALERT_LED_MASK;
+	else
+		reg &= ~FSCHMD_CONTROL_ALERT_LED_MASK;
+
+	i2c_smbus_write_byte_data(to_i2c_client(dev), FSCHMD_REG_CONTROL, reg);
+
+	data->global_control = reg;
+
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static struct sensor_device_attribute fschmd_attr[] = {
+	SENSOR_ATTR(in0_input, 0444, show_in_value, NULL, 0),
+	SENSOR_ATTR(in1_input, 0444, show_in_value, NULL, 1),
+	SENSOR_ATTR(in2_input, 0444, show_in_value, NULL, 2),
+	SENSOR_ATTR(alert_led, 0644, show_alert_led, store_alert_led, 0),
+};
+
+static struct sensor_device_attribute fschmd_temp_attr[] = {
+	SENSOR_ATTR(temp1_input, 0444, show_temp_value, NULL, 0),
+	SENSOR_ATTR(temp1_max,   0644, show_temp_max, store_temp_max, 0),
+	SENSOR_ATTR(temp1_fault, 0444, show_temp_fault, NULL, 0),
+	SENSOR_ATTR(temp1_alarm, 0444, show_temp_alarm, NULL, 0),
+	SENSOR_ATTR(temp2_input, 0444, show_temp_value, NULL, 1),
+	SENSOR_ATTR(temp2_max,   0644, show_temp_max, store_temp_max, 1),
+	SENSOR_ATTR(temp2_fault, 0444, show_temp_fault, NULL, 1),
+	SENSOR_ATTR(temp2_alarm, 0444, show_temp_alarm, NULL, 1),
+	SENSOR_ATTR(temp3_input, 0444, show_temp_value, NULL, 2),
+	SENSOR_ATTR(temp3_max,   0644, show_temp_max, store_temp_max, 2),
+	SENSOR_ATTR(temp3_fault, 0444, show_temp_fault, NULL, 2),
+	SENSOR_ATTR(temp3_alarm, 0444, show_temp_alarm, NULL, 2),
+	SENSOR_ATTR(temp4_input, 0444, show_temp_value, NULL, 3),
+	SENSOR_ATTR(temp4_max,   0644, show_temp_max, store_temp_max, 3),
+	SENSOR_ATTR(temp4_fault, 0444, show_temp_fault, NULL, 3),
+	SENSOR_ATTR(temp4_alarm, 0444, show_temp_alarm, NULL, 3),
+	SENSOR_ATTR(temp5_input, 0444, show_temp_value, NULL, 4),
+	SENSOR_ATTR(temp5_max,   0644, show_temp_max, store_temp_max, 4),
+	SENSOR_ATTR(temp5_fault, 0444, show_temp_fault, NULL, 4),
+	SENSOR_ATTR(temp5_alarm, 0444, show_temp_alarm, NULL, 4),
+};
+
+static struct sensor_device_attribute fschmd_fan_attr[] = {
+	SENSOR_ATTR(fan1_input, 0444, show_fan_value, NULL, 0),
+	SENSOR_ATTR(fan1_div,   0644, show_fan_div, store_fan_div, 0),
+	SENSOR_ATTR(fan1_alarm, 0444, show_fan_alarm, NULL, 0),
+	SENSOR_ATTR(fan1_fault, 0444, show_fan_fault, NULL, 0),
+	SENSOR_ATTR(pwm1_auto_point1_pwm, 0644, show_pwm_auto_point1_pwm,
+		store_pwm_auto_point1_pwm, 0),
+	SENSOR_ATTR(fan2_input, 0444, show_fan_value, NULL, 1),
+	SENSOR_ATTR(fan2_div,   0644, show_fan_div, store_fan_div, 1),
+	SENSOR_ATTR(fan2_alarm, 0444, show_fan_alarm, NULL, 1),
+	SENSOR_ATTR(fan2_fault, 0444, show_fan_fault, NULL, 1),
+	SENSOR_ATTR(pwm2_auto_point1_pwm, 0644, show_pwm_auto_point1_pwm,
+		store_pwm_auto_point1_pwm, 1),
+	SENSOR_ATTR(fan3_input, 0444, show_fan_value, NULL, 2),
+	SENSOR_ATTR(fan3_div,   0644, show_fan_div, store_fan_div, 2),
+	SENSOR_ATTR(fan3_alarm, 0444, show_fan_alarm, NULL, 2),
+	SENSOR_ATTR(fan3_fault, 0444, show_fan_fault, NULL, 2),
+	SENSOR_ATTR(pwm3_auto_point1_pwm, 0644, show_pwm_auto_point1_pwm,
+		store_pwm_auto_point1_pwm, 2),
+	SENSOR_ATTR(fan4_input, 0444, show_fan_value, NULL, 3),
+	SENSOR_ATTR(fan4_div,   0644, show_fan_div, store_fan_div, 3),
+	SENSOR_ATTR(fan4_alarm, 0444, show_fan_alarm, NULL, 3),
+	SENSOR_ATTR(fan4_fault, 0444, show_fan_fault, NULL, 3),
+	SENSOR_ATTR(pwm4_auto_point1_pwm, 0644, show_pwm_auto_point1_pwm,
+		store_pwm_auto_point1_pwm, 3),
+	SENSOR_ATTR(fan5_input, 0444, show_fan_value, NULL, 4),
+	SENSOR_ATTR(fan5_div,   0644, show_fan_div, store_fan_div, 4),
+	SENSOR_ATTR(fan5_alarm, 0444, show_fan_alarm, NULL, 4),
+	SENSOR_ATTR(fan5_fault, 0444, show_fan_fault, NULL, 4),
+	SENSOR_ATTR(pwm5_auto_point1_pwm, 0644, show_pwm_auto_point1_pwm,
+		store_pwm_auto_point1_pwm, 4),
+	SENSOR_ATTR(fan6_input, 0444, show_fan_value, NULL, 5),
+	SENSOR_ATTR(fan6_div,   0644, show_fan_div, store_fan_div, 5),
+	SENSOR_ATTR(fan6_alarm, 0444, show_fan_alarm, NULL, 5),
+	SENSOR_ATTR(fan6_fault, 0444, show_fan_fault, NULL, 5),
+	SENSOR_ATTR(pwm6_auto_point1_pwm, 0644, show_pwm_auto_point1_pwm,
+		store_pwm_auto_point1_pwm, 5),
+};
+
+
+/*
+ * Real code
+ */
+
+/* DMI decode routine to read voltage scaling factors from special DMI tables,
+   which are available on FSC machines with an fscher or later chip. */
+static void fschmd_dmi_decode(const struct dmi_header *header)
+{
+	int i, mult[3] = { 0 }, offset[3] = { 0 }, vref = 0, found = 0;
+
+	/* dmi code ugliness, we get passed the address of the contents of
+	   a complete DMI record, but in the form of a dmi_header pointer, in
+	   reality this address holds header->length bytes of which the header
+	   are the first 4 bytes */
+	u8 *dmi_data = (u8 *)header;
+
+	/* We are looking for OEM-specific type 185 */
+	if (header->type != 185)
+		return;
+
+	/* we are looking for what Siemens calls "subtype" 19, the subtype
+	   is stored in byte 5 of the dmi block */
+	if (header->length < 5 || dmi_data[4] != 19)
+		return;
+
+	/* After the subtype comes 1 unknown byte and then blocks of 5 bytes,
+	   consisting of what Siemens calls an "Entity" number, followed by
+	   2 16-bit words in LSB first order */
+	for (i = 6; (i + 4) < header->length; i += 5) {
+		/* entity 1 - 3: voltage multiplier and offset */
+		if (dmi_data[i] >= 1 && dmi_data[i] <= 3) {
+			/* Our in sensors order and the DMI order differ */
+			const int shuffle[3] = { 1, 0, 2 };
+			int in = shuffle[dmi_data[i] - 1];
+
+			/* Check for twice the same entity */
+			if (found & (1 << in))
+				return;
+
+			mult[in] = dmi_data[i + 1] | (dmi_data[i + 2] << 8);
+			offset[in] = dmi_data[i + 3] | (dmi_data[i + 4] << 8);
+
+			found |= 1 << in;
+		}
+
+		/* entity 7: reference voltage */
+		if (dmi_data[i] == 7) {
+			/* Check for twice the same entity */
+			if (found & 0x08)
+				return;
+
+			vref = dmi_data[i + 1] | (dmi_data[i + 2] << 8);
+
+			found |= 0x08;
+		}
+	}
+
+	if (found == 0x0F) {
+		for (i = 0; i < 3; i++) {
+			dmi_mult[i] = mult[i] * 10;
+			dmi_offset[i] = offset[i] * 10;
+		}
+		dmi_vref = vref;
+	}
+}
+
+static int fschmd_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+	const char * const client_names[5] = { "fscpos", "fscher", "fscscy",
+						"fschrc", "fschmd" };
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	/* Detect & Identify the chip */
+	if (kind <= 0) {
+		char id[4];
+
+		id[0] = i2c_smbus_read_byte_data(client,
+				FSCHMD_REG_IDENT_0);
+		id[1] = i2c_smbus_read_byte_data(client,
+				FSCHMD_REG_IDENT_1);
+		id[2] = i2c_smbus_read_byte_data(client,
+				FSCHMD_REG_IDENT_2);
+		id[3] = '\0';
+
+		if (!strcmp(id, "PEG"))
+			kind = fscpos;
+		else if (!strcmp(id, "HER"))
+			kind = fscher;
+		else if (!strcmp(id, "SCY"))
+			kind = fscscy;
+		else if (!strcmp(id, "HRC"))
+			kind = fschrc;
+		else if (!strcmp(id, "HMD"))
+			kind = fschmd;
+		else
+			return -ENODEV;
+	}
+
+	strlcpy(info->type, client_names[kind - 1], I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int fschmd_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	struct fschmd_data *data;
+	u8 revision;
+	const char * const names[5] = { "Poseidon", "Hermes", "Scylla",
+					"Heracles", "Heimdall" };
+	int i, err;
+	enum chips kind = id->driver_data;
+
+	data = kzalloc(sizeof(struct fschmd_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
+
+	if (kind == fscpos) {
+		/* The Poseidon has hardwired temp limits, fill these
+		   in for the alarm resetting code */
+		data->temp_max[0] = 70 + 128;
+		data->temp_max[1] = 50 + 128;
+		data->temp_max[2] = 50 + 128;
+	}
+
+	/* Read the special DMI table for fscher and newer chips */
+	if (kind == fscher || kind >= fschrc) {
+		dmi_walk(fschmd_dmi_decode);
+		if (dmi_vref == -1) {
+			printk(KERN_WARNING FSCHMD_NAME
+				": Couldn't get voltage scaling factors from "
+				"BIOS DMI table, using builtin defaults\n");
+			dmi_vref = 33;
+		}
+	}
+
+	/* i2c kind goes from 1-5, we want from 0-4 to address arrays */
+	data->kind = kind - 1;
+
+	for (i = 0; i < ARRAY_SIZE(fschmd_attr); i++) {
+		err = device_create_file(&client->dev,
+					&fschmd_attr[i].dev_attr);
+		if (err)
+			goto exit_detach;
+	}
+
+	for (i = 0; i < (FSCHMD_NO_TEMP_SENSORS[data->kind] * 4); i++) {
+		/* Poseidon doesn't have TEMP_LIMIT registers */
+		if (kind == fscpos && fschmd_temp_attr[i].dev_attr.show ==
+				show_temp_max)
+			continue;
+
+		err = device_create_file(&client->dev,
+					&fschmd_temp_attr[i].dev_attr);
+		if (err)
+			goto exit_detach;
+	}
+
+	for (i = 0; i < (FSCHMD_NO_FAN_SENSORS[data->kind] * 5); i++) {
+		/* Poseidon doesn't have a FAN_MIN register for its 3rd fan */
+		if (kind == fscpos &&
+				!strcmp(fschmd_fan_attr[i].dev_attr.attr.name,
+					"pwm3_auto_point1_pwm"))
+			continue;
+
+		err = device_create_file(&client->dev,
+					&fschmd_fan_attr[i].dev_attr);
+		if (err)
+			goto exit_detach;
+	}
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		data->hwmon_dev = NULL;
+		goto exit_detach;
+	}
+
+	revision = i2c_smbus_read_byte_data(client, FSCHMD_REG_REVISION);
+	printk(KERN_INFO FSCHMD_NAME ": Detected FSC %s chip, revision: %d\n",
+		names[data->kind], (int) revision);
+
+	return 0;
+
+exit_detach:
+	fschmd_remove(client); /* will also free data for us */
+	return err;
+}
+
+static int fschmd_remove(struct i2c_client *client)
+{
+	struct fschmd_data *data = i2c_get_clientdata(client);
+	int i;
+
+	/* Check if registered in case we're called from fschmd_detect
+	   to cleanup after an error */
+	if (data->hwmon_dev)
+		hwmon_device_unregister(data->hwmon_dev);
+
+	for (i = 0; i < ARRAY_SIZE(fschmd_attr); i++)
+		device_remove_file(&client->dev, &fschmd_attr[i].dev_attr);
+	for (i = 0; i < (FSCHMD_NO_TEMP_SENSORS[data->kind] * 4); i++)
+		device_remove_file(&client->dev,
+					&fschmd_temp_attr[i].dev_attr);
+	for (i = 0; i < (FSCHMD_NO_FAN_SENSORS[data->kind] * 5); i++)
+		device_remove_file(&client->dev,
+					&fschmd_fan_attr[i].dev_attr);
+
+	kfree(data);
+	return 0;
+}
+
+static struct fschmd_data *fschmd_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct fschmd_data *data = i2c_get_clientdata(client);
+	int i;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) {
+
+		for (i = 0; i < FSCHMD_NO_TEMP_SENSORS[data->kind]; i++) {
+			data->temp_act[i] = i2c_smbus_read_byte_data(client,
+					FSCHMD_REG_TEMP_ACT[data->kind][i]);
+			data->temp_status[i] = i2c_smbus_read_byte_data(client,
+					FSCHMD_REG_TEMP_STATE[data->kind][i]);
+
+			/* The fscpos doesn't have TEMP_LIMIT registers */
+			if (FSCHMD_REG_TEMP_LIMIT[data->kind][i])
+				data->temp_max[i] = i2c_smbus_read_byte_data(
+					client,
+					FSCHMD_REG_TEMP_LIMIT[data->kind][i]);
+
+			/* reset alarm if the alarm condition is gone,
+			   the chip doesn't do this itself */
+			if ((data->temp_status[i] & FSCHMD_TEMP_ALARM_MASK) ==
+					FSCHMD_TEMP_ALARM_MASK &&
+					data->temp_act[i] < data->temp_max[i])
+				i2c_smbus_write_byte_data(client,
+					FSCHMD_REG_TEMP_STATE[data->kind][i],
+					FSCHMD_TEMP_ALERT_MASK);
+		}
+
+		for (i = 0; i < FSCHMD_NO_FAN_SENSORS[data->kind]; i++) {
+			data->fan_act[i] = i2c_smbus_read_byte_data(client,
+					FSCHMD_REG_FAN_ACT[data->kind][i]);
+			data->fan_status[i] = i2c_smbus_read_byte_data(client,
+					FSCHMD_REG_FAN_STATE[data->kind][i]);
+			data->fan_ripple[i] = i2c_smbus_read_byte_data(client,
+					FSCHMD_REG_FAN_RIPPLE[data->kind][i]);
+
+			/* The fscpos third fan doesn't have a fan_min */
+			if (FSCHMD_REG_FAN_MIN[data->kind][i])
+				data->fan_min[i] = i2c_smbus_read_byte_data(
+					client,
+					FSCHMD_REG_FAN_MIN[data->kind][i]);
+
+			/* reset fan status if speed is back to > 0 */
+			if ((data->fan_status[i] & FSCHMD_FAN_ALARM_MASK) &&
+					data->fan_act[i])
+				i2c_smbus_write_byte_data(client,
+					FSCHMD_REG_FAN_STATE[data->kind][i],
+					FSCHMD_FAN_ALARM_MASK);
+		}
+
+		for (i = 0; i < 3; i++)
+			data->volt[i] = i2c_smbus_read_byte_data(client,
+						FSCHMD_REG_VOLT[i]);
+
+		data->global_control = i2c_smbus_read_byte_data(client,
+						FSCHMD_REG_CONTROL);
+
+		/* To be implemented in the future
+		data->watchdog[0] = i2c_smbus_read_byte_data(client,
+						FSCHMD_REG_WDOG_PRESET);
+		data->watchdog[1] = i2c_smbus_read_byte_data(client,
+						FSCHMD_REG_WDOG_STATE);
+		data->watchdog[2] = i2c_smbus_read_byte_data(client,
+						FSCHMD_REG_WDOG_CONTROL); */
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init fschmd_init(void)
+{
+	return i2c_add_driver(&fschmd_driver);
+}
+
+static void __exit fschmd_exit(void)
+{
+	i2c_del_driver(&fschmd_driver);
+}
+
+MODULE_AUTHOR("Hans de Goede <j.w.r.degoede@hhs.nl>");
+MODULE_DESCRIPTION("FSC Poseidon, Hermes, Scylla, Heracles and "
+			"Heimdall driver");
+MODULE_LICENSE("GPL");
+
+module_init(fschmd_init);
+module_exit(fschmd_exit);
diff --git a/drivers/hwmon/fscpos.c b/drivers/hwmon/fscpos.c
new file mode 100644
index 0000000..8a7bcf5
--- /dev/null
+++ b/drivers/hwmon/fscpos.c
@@ -0,0 +1,654 @@
+/*
+	fscpos.c - Kernel module for hardware monitoring with FSC Poseidon chips
+	Copyright (C) 2004, 2005 Stefan Ott <stefan@desire.ch>
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program; if not, write to the Free Software
+	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+	fujitsu siemens poseidon chip,
+	module based on the old fscpos module by Hermann Jung <hej@odn.de> and
+	the fscher module by Reinhard Nissl <rnissl@gmx.de>
+
+	original module based on lm80.c
+	Copyright (C) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
+	and Philip Edelbrock <phil@netroedge.com>
+
+	Thanks to Jean Delvare for reviewing my code and suggesting a lot of
+	improvements.
+*/
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/hwmon.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+
+/*
+ * Addresses to scan
+ */
+static const unsigned short normal_i2c[] = { 0x73, I2C_CLIENT_END };
+
+/*
+ * Insmod parameters
+ */
+I2C_CLIENT_INSMOD_1(fscpos);
+
+/*
+ * The FSCPOS registers
+ */
+
+/* chip identification */
+#define FSCPOS_REG_IDENT_0		0x00
+#define FSCPOS_REG_IDENT_1		0x01
+#define FSCPOS_REG_IDENT_2		0x02
+#define FSCPOS_REG_REVISION		0x03
+
+/* global control and status */
+#define FSCPOS_REG_EVENT_STATE		0x04
+#define FSCPOS_REG_CONTROL		0x05
+
+/* watchdog */
+#define FSCPOS_REG_WDOG_PRESET		0x28
+#define FSCPOS_REG_WDOG_STATE		0x23
+#define FSCPOS_REG_WDOG_CONTROL		0x21
+
+/* voltages */
+#define FSCPOS_REG_VOLT_12		0x45
+#define FSCPOS_REG_VOLT_5		0x42
+#define FSCPOS_REG_VOLT_BATT		0x48
+
+/* fans - the chip does not support minimum speed for fan2 */
+static u8 FSCPOS_REG_PWM[] = { 0x55, 0x65 };
+static u8 FSCPOS_REG_FAN_ACT[] = { 0x0e, 0x6b, 0xab };
+static u8 FSCPOS_REG_FAN_STATE[] = { 0x0d, 0x62, 0xa2 };
+static u8 FSCPOS_REG_FAN_RIPPLE[] = { 0x0f, 0x6f, 0xaf };
+
+/* temperatures */
+static u8 FSCPOS_REG_TEMP_ACT[] = { 0x64, 0x32, 0x35 };
+static u8 FSCPOS_REG_TEMP_STATE[] = { 0x71, 0x81, 0x91 };
+
+/*
+ * Functions declaration
+ */
+static int fscpos_probe(struct i2c_client *client,
+			const struct i2c_device_id *id);
+static int fscpos_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info);
+static int fscpos_remove(struct i2c_client *client);
+
+static int fscpos_read_value(struct i2c_client *client, u8 reg);
+static int fscpos_write_value(struct i2c_client *client, u8 reg, u8 value);
+static struct fscpos_data *fscpos_update_device(struct device *dev);
+static void fscpos_init_client(struct i2c_client *client);
+
+static void reset_fan_alarm(struct i2c_client *client, int nr);
+
+/*
+ * Driver data (common to all clients)
+ */
+static const struct i2c_device_id fscpos_id[] = {
+	{ "fscpos", fscpos },
+	{ }
+};
+
+static struct i2c_driver fscpos_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "fscpos",
+	},
+	.probe		= fscpos_probe,
+	.remove		= fscpos_remove,
+	.id_table	= fscpos_id,
+	.detect		= fscpos_detect,
+	.address_data	= &addr_data,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+struct fscpos_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	char valid; 		/* 0 until following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+
+	/* register values */
+	u8 revision;		/* revision of chip */
+	u8 global_event;	/* global event status */
+	u8 global_control;	/* global control register */
+	u8 wdog_control;	/* watchdog control */
+	u8 wdog_state;		/* watchdog status */
+	u8 wdog_preset;		/* watchdog preset */
+	u8 volt[3];		/* 12, 5, battery current */
+	u8 temp_act[3];		/* temperature */
+	u8 temp_status[3];	/* status of sensor */
+	u8 fan_act[3];		/* fans revolutions per second */
+	u8 fan_status[3];	/* fan status */
+	u8 pwm[2];		/* fan min value for rps */
+	u8 fan_ripple[3];	/* divider for rps */
+};
+
+/* Temperature */
+#define TEMP_FROM_REG(val)	(((val) - 128) * 1000)
+
+static ssize_t show_temp_input(struct fscpos_data *data, char *buf, int nr)
+{
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_act[nr - 1]));
+}
+
+static ssize_t show_temp_status(struct fscpos_data *data, char *buf, int nr)
+{
+	/* bits 2..7 reserved => mask with 0x03 */
+	return sprintf(buf, "%u\n", data->temp_status[nr - 1] & 0x03);
+}
+
+static ssize_t show_temp_reset(struct fscpos_data *data, char *buf, int nr)
+{
+	return sprintf(buf, "1\n");
+}
+
+static ssize_t set_temp_reset(struct i2c_client *client, struct fscpos_data
+			*data, const char *buf,	size_t count, int nr, int reg)
+{
+	unsigned long v = simple_strtoul(buf, NULL, 10);
+	if (v != 1) {
+		dev_err(&client->dev, "temp_reset value %ld not supported. "
+					"Use 1 to reset the alarm!\n", v);
+		return -EINVAL;
+	}
+
+	dev_info(&client->dev, "You used the temp_reset feature which has not "
+				"been proplerly tested. Please report your "
+				"experience to the module author.\n");
+
+	/* Supported value: 2 (clears the status) */
+	fscpos_write_value(client, FSCPOS_REG_TEMP_STATE[nr - 1], 2);
+	return count;
+}
+
+/* Fans */
+#define RPM_FROM_REG(val)	((val) * 60)
+
+static ssize_t show_fan_status(struct fscpos_data *data, char *buf, int nr)
+{
+	/* bits 0..1, 3..7 reserved => mask with 0x04 */
+	return sprintf(buf, "%u\n", data->fan_status[nr - 1] & 0x04);
+}
+
+static ssize_t show_fan_input(struct fscpos_data *data, char *buf, int nr)
+{
+	return sprintf(buf, "%u\n", RPM_FROM_REG(data->fan_act[nr - 1]));
+}
+
+static ssize_t show_fan_ripple(struct fscpos_data *data, char *buf, int nr)
+{
+	/* bits 2..7 reserved => mask with 0x03 */
+	return sprintf(buf, "%u\n", data->fan_ripple[nr - 1] & 0x03);
+}
+
+static ssize_t set_fan_ripple(struct i2c_client *client, struct fscpos_data
+			*data, const char *buf,	size_t count, int nr, int reg)
+{
+	/* supported values: 2, 4, 8 */
+	unsigned long v = simple_strtoul(buf, NULL, 10);
+
+	switch (v) {
+		case 2: v = 1; break;
+		case 4: v = 2; break;
+		case 8: v = 3; break;
+	default:
+		dev_err(&client->dev, "fan_ripple value %ld not supported. "
+					"Must be one of 2, 4 or 8!\n", v);
+		return -EINVAL;
+	}
+	
+	mutex_lock(&data->update_lock);
+	/* bits 2..7 reserved => mask with 0x03 */
+	data->fan_ripple[nr - 1] &= ~0x03;
+	data->fan_ripple[nr - 1] |= v;
+	
+	fscpos_write_value(client, reg, data->fan_ripple[nr - 1]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_pwm(struct fscpos_data *data, char *buf, int nr)
+{
+	return sprintf(buf, "%u\n", data->pwm[nr - 1]);
+}
+
+static ssize_t set_pwm(struct i2c_client *client, struct fscpos_data *data,
+				const char *buf, size_t count, int nr, int reg)
+{
+	unsigned long v = simple_strtoul(buf, NULL, 10);
+
+	/* Range: 0..255 */
+	if (v < 0) v = 0;
+	if (v > 255) v = 255;
+
+	mutex_lock(&data->update_lock);
+	data->pwm[nr - 1] = v;
+	fscpos_write_value(client, reg, data->pwm[nr - 1]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static void reset_fan_alarm(struct i2c_client *client, int nr)
+{
+	fscpos_write_value(client, FSCPOS_REG_FAN_STATE[nr], 4);
+}
+
+/* Volts */
+#define VOLT_FROM_REG(val, mult)	((val) * (mult) / 255)
+
+static ssize_t show_volt_12(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct fscpos_data *data = fscpos_update_device(dev);
+	return sprintf(buf, "%u\n", VOLT_FROM_REG(data->volt[0], 14200));
+}
+
+static ssize_t show_volt_5(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct fscpos_data *data = fscpos_update_device(dev);
+	return sprintf(buf, "%u\n", VOLT_FROM_REG(data->volt[1], 6600));
+}
+
+static ssize_t show_volt_batt(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct fscpos_data *data = fscpos_update_device(dev);
+	return sprintf(buf, "%u\n", VOLT_FROM_REG(data->volt[2], 3300));
+}
+
+/* Watchdog */
+static ssize_t show_wdog_control(struct fscpos_data *data, char *buf)
+{
+	/* bits 0..3 reserved, bit 6 write only => mask with 0xb0 */
+	return sprintf(buf, "%u\n", data->wdog_control & 0xb0);
+}
+
+static ssize_t set_wdog_control(struct i2c_client *client, struct fscpos_data
+				*data, const char *buf,	size_t count, int reg)
+{
+	/* bits 0..3 reserved => mask with 0xf0 */
+	unsigned long v = simple_strtoul(buf, NULL, 10) & 0xf0;
+
+	mutex_lock(&data->update_lock);
+	data->wdog_control &= ~0xf0;
+	data->wdog_control |= v;
+	fscpos_write_value(client, reg, data->wdog_control);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_wdog_state(struct fscpos_data *data, char *buf)
+{
+	/* bits 0, 2..7 reserved => mask with 0x02 */
+	return sprintf(buf, "%u\n", data->wdog_state & 0x02);
+}
+
+static ssize_t set_wdog_state(struct i2c_client *client, struct fscpos_data
+				*data, const char *buf, size_t count, int reg)
+{
+	unsigned long v = simple_strtoul(buf, NULL, 10) & 0x02;
+
+	/* Valid values: 2 (clear) */
+	if (v != 2) {
+		dev_err(&client->dev, "wdog_state value %ld not supported. "
+					"Must be 2 to clear the state!\n", v);
+		return -EINVAL;
+	}
+
+	mutex_lock(&data->update_lock);
+	data->wdog_state &= ~v;
+	fscpos_write_value(client, reg, v);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_wdog_preset(struct fscpos_data *data, char *buf)
+{
+	return sprintf(buf, "%u\n", data->wdog_preset);
+}
+
+static ssize_t set_wdog_preset(struct i2c_client *client, struct fscpos_data
+				*data, const char *buf,	size_t count, int reg)
+{
+	unsigned long v = simple_strtoul(buf, NULL, 10) & 0xff;
+
+	mutex_lock(&data->update_lock);
+	data->wdog_preset = v;
+	fscpos_write_value(client, reg, data->wdog_preset);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+/* Event */
+static ssize_t show_event(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	/* bits 5..7 reserved => mask with 0x1f */
+	struct fscpos_data *data = fscpos_update_device(dev);
+	return sprintf(buf, "%u\n", data->global_event & 0x9b);
+}
+
+/*
+ * Sysfs stuff
+ */
+#define create_getter(kind, sub) \
+	static ssize_t sysfs_show_##kind##sub(struct device *dev, struct device_attribute *attr, char *buf) \
+	{ \
+		struct fscpos_data *data = fscpos_update_device(dev); \
+		return show_##kind##sub(data, buf); \
+	}
+
+#define create_getter_n(kind, offset, sub) \
+	static ssize_t sysfs_show_##kind##offset##sub(struct device *dev, struct device_attribute *attr, char\
+								 	*buf) \
+	{ \
+		struct fscpos_data *data = fscpos_update_device(dev); \
+		return show_##kind##sub(data, buf, offset); \
+	}
+
+#define create_setter(kind, sub, reg) \
+	static ssize_t sysfs_set_##kind##sub (struct device *dev, struct device_attribute *attr, const char \
+							*buf, size_t count) \
+	{ \
+		struct i2c_client *client = to_i2c_client(dev); \
+		struct fscpos_data *data = i2c_get_clientdata(client); \
+		return set_##kind##sub(client, data, buf, count, reg); \
+	}
+
+#define create_setter_n(kind, offset, sub, reg) \
+	static ssize_t sysfs_set_##kind##offset##sub (struct device *dev, struct device_attribute *attr, \
+					const char *buf, size_t count) \
+	{ \
+		struct i2c_client *client = to_i2c_client(dev); \
+		struct fscpos_data *data = i2c_get_clientdata(client); \
+		return set_##kind##sub(client, data, buf, count, offset, reg);\
+	}
+
+#define create_sysfs_device_ro(kind, sub, offset) \
+	static DEVICE_ATTR(kind##offset##sub, S_IRUGO, \
+					sysfs_show_##kind##offset##sub, NULL);
+
+#define create_sysfs_device_rw(kind, sub, offset) \
+	static DEVICE_ATTR(kind##offset##sub, S_IRUGO | S_IWUSR, \
+		sysfs_show_##kind##offset##sub, sysfs_set_##kind##offset##sub);
+
+#define sysfs_ro_n(kind, sub, offset) \
+	create_getter_n(kind, offset, sub); \
+	create_sysfs_device_ro(kind, sub, offset);
+
+#define sysfs_rw_n(kind, sub, offset, reg) \
+	create_getter_n(kind, offset, sub); \
+	create_setter_n(kind, offset, sub, reg); \
+	create_sysfs_device_rw(kind, sub, offset);
+
+#define sysfs_rw(kind, sub, reg) \
+	create_getter(kind, sub); \
+	create_setter(kind, sub, reg); \
+	create_sysfs_device_rw(kind, sub,);
+
+#define sysfs_fan_with_min(offset, reg_status, reg_ripple, reg_min) \
+	sysfs_fan(offset, reg_status, reg_ripple); \
+	sysfs_rw_n(pwm,, offset, reg_min);
+
+#define sysfs_fan(offset, reg_status, reg_ripple) \
+	sysfs_ro_n(fan, _input, offset); \
+	sysfs_ro_n(fan, _status, offset); \
+	sysfs_rw_n(fan, _ripple, offset, reg_ripple);
+
+#define sysfs_temp(offset, reg_status) \
+	sysfs_ro_n(temp, _input, offset); \
+	sysfs_ro_n(temp, _status, offset); \
+	sysfs_rw_n(temp, _reset, offset, reg_status);
+
+#define sysfs_watchdog(reg_wdog_preset, reg_wdog_state, reg_wdog_control) \
+	sysfs_rw(wdog, _control, reg_wdog_control); \
+	sysfs_rw(wdog, _preset, reg_wdog_preset); \
+	sysfs_rw(wdog, _state, reg_wdog_state);
+
+sysfs_fan_with_min(1, FSCPOS_REG_FAN_STATE[0], FSCPOS_REG_FAN_RIPPLE[0],
+							FSCPOS_REG_PWM[0]);
+sysfs_fan_with_min(2, FSCPOS_REG_FAN_STATE[1], FSCPOS_REG_FAN_RIPPLE[1],
+							FSCPOS_REG_PWM[1]);
+sysfs_fan(3, FSCPOS_REG_FAN_STATE[2], FSCPOS_REG_FAN_RIPPLE[2]);
+
+sysfs_temp(1, FSCPOS_REG_TEMP_STATE[0]);
+sysfs_temp(2, FSCPOS_REG_TEMP_STATE[1]);
+sysfs_temp(3, FSCPOS_REG_TEMP_STATE[2]);
+
+sysfs_watchdog(FSCPOS_REG_WDOG_PRESET, FSCPOS_REG_WDOG_STATE,
+						FSCPOS_REG_WDOG_CONTROL);
+
+static DEVICE_ATTR(event, S_IRUGO, show_event, NULL);
+static DEVICE_ATTR(in0_input, S_IRUGO, show_volt_12, NULL);
+static DEVICE_ATTR(in1_input, S_IRUGO, show_volt_5, NULL);
+static DEVICE_ATTR(in2_input, S_IRUGO, show_volt_batt, NULL);
+
+static struct attribute *fscpos_attributes[] = {
+	&dev_attr_event.attr,
+	&dev_attr_in0_input.attr,
+	&dev_attr_in1_input.attr,
+	&dev_attr_in2_input.attr,
+
+	&dev_attr_wdog_control.attr,
+	&dev_attr_wdog_preset.attr,
+	&dev_attr_wdog_state.attr,
+
+	&dev_attr_temp1_input.attr,
+	&dev_attr_temp1_status.attr,
+	&dev_attr_temp1_reset.attr,
+	&dev_attr_temp2_input.attr,
+	&dev_attr_temp2_status.attr,
+	&dev_attr_temp2_reset.attr,
+	&dev_attr_temp3_input.attr,
+	&dev_attr_temp3_status.attr,
+	&dev_attr_temp3_reset.attr,
+
+	&dev_attr_fan1_input.attr,
+	&dev_attr_fan1_status.attr,
+	&dev_attr_fan1_ripple.attr,
+	&dev_attr_pwm1.attr,
+	&dev_attr_fan2_input.attr,
+	&dev_attr_fan2_status.attr,
+	&dev_attr_fan2_ripple.attr,
+	&dev_attr_pwm2.attr,
+	&dev_attr_fan3_input.attr,
+	&dev_attr_fan3_status.attr,
+	&dev_attr_fan3_ripple.attr,
+	NULL
+};
+
+static const struct attribute_group fscpos_group = {
+	.attrs = fscpos_attributes,
+};
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int fscpos_detect(struct i2c_client *new_client, int kind,
+			 struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = new_client->adapter;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	/* Do the remaining detection unless force or force_fscpos parameter */
+	if (kind < 0) {
+		if ((fscpos_read_value(new_client, FSCPOS_REG_IDENT_0)
+			!= 0x50) /* 'P' */
+		|| (fscpos_read_value(new_client, FSCPOS_REG_IDENT_1)
+			!= 0x45) /* 'E' */
+		|| (fscpos_read_value(new_client, FSCPOS_REG_IDENT_2)
+			!= 0x47))/* 'G' */
+			return -ENODEV;
+	}
+
+	strlcpy(info->type, "fscpos", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int fscpos_probe(struct i2c_client *new_client,
+			const struct i2c_device_id *id)
+{
+	struct fscpos_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct fscpos_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(new_client, data);
+	data->valid = 0;
+	mutex_init(&data->update_lock);
+
+	/* Inizialize the fscpos chip */
+	fscpos_init_client(new_client);
+
+	/* Announce that the chip was found */
+	dev_info(&new_client->dev, "Found fscpos chip, rev %u\n", data->revision);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&new_client->dev.kobj, &fscpos_group)))
+		goto exit_free;
+
+	data->hwmon_dev = hwmon_device_register(&new_client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove_files;
+	}
+
+	return 0;
+
+exit_remove_files:
+	sysfs_remove_group(&new_client->dev.kobj, &fscpos_group);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+static int fscpos_remove(struct i2c_client *client)
+{
+	struct fscpos_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &fscpos_group);
+
+	kfree(data);
+	return 0;
+}
+
+static int fscpos_read_value(struct i2c_client *client, u8 reg)
+{
+	dev_dbg(&client->dev, "Read reg 0x%02x\n", reg);
+	return i2c_smbus_read_byte_data(client, reg);
+}
+
+static int fscpos_write_value(struct i2c_client *client, u8 reg, u8 value)
+{
+	dev_dbg(&client->dev, "Write reg 0x%02x, val 0x%02x\n", reg, value);
+	return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+/* Called when we have found a new FSCPOS chip */
+static void fscpos_init_client(struct i2c_client *client)
+{
+	struct fscpos_data *data = i2c_get_clientdata(client);
+
+	/* read revision from chip */
+	data->revision = fscpos_read_value(client, FSCPOS_REG_REVISION);
+}
+
+static struct fscpos_data *fscpos_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct fscpos_data *data = i2c_get_clientdata(client);
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) {
+		int i;
+
+		dev_dbg(&client->dev, "Starting fscpos update\n");
+
+		for (i = 0; i < 3; i++) {
+			data->temp_act[i] = fscpos_read_value(client,
+						FSCPOS_REG_TEMP_ACT[i]);
+			data->temp_status[i] = fscpos_read_value(client,
+						FSCPOS_REG_TEMP_STATE[i]);
+			data->fan_act[i] = fscpos_read_value(client,
+						FSCPOS_REG_FAN_ACT[i]);
+			data->fan_status[i] = fscpos_read_value(client,
+						FSCPOS_REG_FAN_STATE[i]);
+			data->fan_ripple[i] = fscpos_read_value(client,
+						FSCPOS_REG_FAN_RIPPLE[i]);
+			if (i < 2) {
+				/* fan2_min is not supported by the chip */
+				data->pwm[i] = fscpos_read_value(client,
+							FSCPOS_REG_PWM[i]);
+			}
+			/* reset fan status if speed is back to > 0 */
+			if (data->fan_status[i] != 0 && data->fan_act[i] > 0) {
+				reset_fan_alarm(client, i);
+			}
+		}
+
+		data->volt[0] = fscpos_read_value(client, FSCPOS_REG_VOLT_12);
+		data->volt[1] = fscpos_read_value(client, FSCPOS_REG_VOLT_5);
+		data->volt[2] = fscpos_read_value(client, FSCPOS_REG_VOLT_BATT);
+
+		data->wdog_preset = fscpos_read_value(client,
+							FSCPOS_REG_WDOG_PRESET);
+		data->wdog_state = fscpos_read_value(client,
+							FSCPOS_REG_WDOG_STATE);
+		data->wdog_control = fscpos_read_value(client,
+						FSCPOS_REG_WDOG_CONTROL);
+
+		data->global_event = fscpos_read_value(client,
+						FSCPOS_REG_EVENT_STATE);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+	mutex_unlock(&data->update_lock);
+	return data;
+}
+
+static int __init sm_fscpos_init(void)
+{
+	return i2c_add_driver(&fscpos_driver);
+}
+
+static void __exit sm_fscpos_exit(void)
+{
+	i2c_del_driver(&fscpos_driver);
+}
+
+MODULE_AUTHOR("Stefan Ott <stefan@desire.ch> based on work from Hermann Jung "
+				"<hej@odn.de>, Frodo Looijaard <frodol@dds.nl>"
+				" and Philip Edelbrock <phil@netroedge.com>");
+MODULE_DESCRIPTION("fujitsu siemens poseidon chip driver");
+MODULE_LICENSE("GPL");
+
+module_init(sm_fscpos_init);
+module_exit(sm_fscpos_exit);
diff --git a/drivers/hwmon/gl518sm.c b/drivers/hwmon/gl518sm.c
new file mode 100644
index 0000000..7820df4
--- /dev/null
+++ b/drivers/hwmon/gl518sm.c
@@ -0,0 +1,714 @@
+/*
+ * gl518sm.c - Part of lm_sensors, Linux kernel modules for hardware
+ *             monitoring
+ * Copyright (C) 1998, 1999 Frodo Looijaard <frodol@dds.nl> and
+ * Kyosti Malkki <kmalkki@cc.hut.fi>
+ * Copyright (C) 2004 Hong-Gunn Chew <hglinux@gunnet.org> and
+ * Jean Delvare <khali@linux-fr.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Ported to Linux 2.6 by Hong-Gunn Chew with the help of Jean Delvare
+ * and advice of Greg Kroah-Hartman.
+ *
+ * Notes about the port:
+ * Release 0x00 of the GL518SM chipset doesn't support reading of in0,
+ * in1 nor in2. The original driver had an ugly workaround to get them
+ * anyway (changing limits and watching alarms trigger and wear off).
+ * We did not keep that part of the original driver in the Linux 2.6
+ * version, since it was making the driver significantly more complex
+ * with no real benefit.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_2(gl518sm_r00, gl518sm_r80);
+
+/* Many GL518 constants specified below */
+
+/* The GL518 registers */
+#define GL518_REG_CHIP_ID	0x00
+#define GL518_REG_REVISION	0x01
+#define GL518_REG_VENDOR_ID	0x02
+#define GL518_REG_CONF		0x03
+#define GL518_REG_TEMP_IN	0x04
+#define GL518_REG_TEMP_MAX	0x05
+#define GL518_REG_TEMP_HYST	0x06
+#define GL518_REG_FAN_COUNT	0x07
+#define GL518_REG_FAN_LIMIT	0x08
+#define GL518_REG_VIN1_LIMIT	0x09
+#define GL518_REG_VIN2_LIMIT	0x0a
+#define GL518_REG_VIN3_LIMIT	0x0b
+#define GL518_REG_VDD_LIMIT	0x0c
+#define GL518_REG_VIN3		0x0d
+#define GL518_REG_MISC		0x0f
+#define GL518_REG_ALARM		0x10
+#define GL518_REG_MASK		0x11
+#define GL518_REG_INT		0x12
+#define GL518_REG_VIN2		0x13
+#define GL518_REG_VIN1		0x14
+#define GL518_REG_VDD		0x15
+
+
+/*
+ * Conversions. Rounding and limit checking is only done on the TO_REG
+ * variants. Note that you should be a bit careful with which arguments
+ * these macros are called: arguments may be evaluated more than once.
+ * Fixing this is just not worth it.
+ */
+
+#define RAW_FROM_REG(val)	val
+
+#define BOOL_FROM_REG(val)	((val)?0:1)
+#define BOOL_TO_REG(val)	((val)?0:1)
+
+#define TEMP_TO_REG(val)	(SENSORS_LIMIT(((((val)<0? \
+				(val)-500:(val)+500)/1000)+119),0,255))
+#define TEMP_FROM_REG(val)	(((val) - 119) * 1000)
+
+static inline u8 FAN_TO_REG(long rpm, int div)
+{
+	long rpmdiv;
+	if (rpm == 0)
+		return 0;
+	rpmdiv = SENSORS_LIMIT(rpm, 1, 960000) * div;
+	return SENSORS_LIMIT((480000 + rpmdiv / 2) / rpmdiv, 1, 255);
+}
+#define FAN_FROM_REG(val,div)	((val)==0 ? 0 : (480000/((val)*(div))))
+
+#define IN_TO_REG(val)		(SENSORS_LIMIT((((val)+9)/19),0,255))
+#define IN_FROM_REG(val)	((val)*19)
+
+#define VDD_TO_REG(val)		(SENSORS_LIMIT((((val)*4+47)/95),0,255))
+#define VDD_FROM_REG(val)	(((val)*95+2)/4)
+
+#define DIV_FROM_REG(val)	(1 << (val))
+
+#define BEEP_MASK_TO_REG(val)	((val) & 0x7f & data->alarm_mask)
+#define BEEP_MASK_FROM_REG(val)	((val) & 0x7f)
+
+/* Each client has this additional data */
+struct gl518_data {
+	struct device *hwmon_dev;
+	enum chips type;
+
+	struct mutex update_lock;
+	char valid;		/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+
+	u8 voltage_in[4];	/* Register values; [0] = VDD */
+	u8 voltage_min[4];	/* Register values; [0] = VDD */
+	u8 voltage_max[4];	/* Register values; [0] = VDD */
+	u8 fan_in[2];
+	u8 fan_min[2];
+	u8 fan_div[2];		/* Register encoding, shifted right */
+	u8 fan_auto1;		/* Boolean */
+	u8 temp_in;		/* Register values */
+	u8 temp_max;		/* Register values */
+	u8 temp_hyst;		/* Register values */
+	u8 alarms;		/* Register value */
+	u8 alarm_mask;
+	u8 beep_mask;		/* Register value */
+	u8 beep_enable;		/* Boolean */
+};
+
+static int gl518_probe(struct i2c_client *client,
+		       const struct i2c_device_id *id);
+static int gl518_detect(struct i2c_client *client, int kind,
+			struct i2c_board_info *info);
+static void gl518_init_client(struct i2c_client *client);
+static int gl518_remove(struct i2c_client *client);
+static int gl518_read_value(struct i2c_client *client, u8 reg);
+static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value);
+static struct gl518_data *gl518_update_device(struct device *dev);
+
+static const struct i2c_device_id gl518_id[] = {
+	{ "gl518sm", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, gl518_id);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver gl518_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "gl518sm",
+	},
+	.probe		= gl518_probe,
+	.remove		= gl518_remove,
+	.id_table	= gl518_id,
+	.detect		= gl518_detect,
+	.address_data	= &addr_data,
+};
+
+/*
+ * Sysfs stuff
+ */
+
+#define show(type, suffix, value)					\
+static ssize_t show_##suffix(struct device *dev, struct device_attribute *attr, char *buf)		\
+{									\
+	struct gl518_data *data = gl518_update_device(dev);		\
+	return sprintf(buf, "%d\n", type##_FROM_REG(data->value));	\
+}
+
+show(TEMP, temp_input1, temp_in);
+show(TEMP, temp_max1, temp_max);
+show(TEMP, temp_hyst1, temp_hyst);
+show(BOOL, fan_auto1, fan_auto1);
+show(VDD, in_input0, voltage_in[0]);
+show(IN, in_input1, voltage_in[1]);
+show(IN, in_input2, voltage_in[2]);
+show(IN, in_input3, voltage_in[3]);
+show(VDD, in_min0, voltage_min[0]);
+show(IN, in_min1, voltage_min[1]);
+show(IN, in_min2, voltage_min[2]);
+show(IN, in_min3, voltage_min[3]);
+show(VDD, in_max0, voltage_max[0]);
+show(IN, in_max1, voltage_max[1]);
+show(IN, in_max2, voltage_max[2]);
+show(IN, in_max3, voltage_max[3]);
+show(RAW, alarms, alarms);
+show(BOOL, beep_enable, beep_enable);
+show(BEEP_MASK, beep_mask, beep_mask);
+
+static ssize_t show_fan_input(struct device *dev,
+			      struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct gl518_data *data = gl518_update_device(dev);
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_in[nr],
+					DIV_FROM_REG(data->fan_div[nr])));
+}
+
+static ssize_t show_fan_min(struct device *dev,
+			    struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct gl518_data *data = gl518_update_device(dev);
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr],
+					DIV_FROM_REG(data->fan_div[nr])));
+}
+
+static ssize_t show_fan_div(struct device *dev,
+			    struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct gl518_data *data = gl518_update_device(dev);
+	return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));
+}
+
+#define set(type, suffix, value, reg)					\
+static ssize_t set_##suffix(struct device *dev, struct device_attribute *attr, const char *buf,	\
+	size_t count)							\
+{									\
+	struct i2c_client *client = to_i2c_client(dev);			\
+	struct gl518_data *data = i2c_get_clientdata(client);		\
+	long val = simple_strtol(buf, NULL, 10);			\
+									\
+	mutex_lock(&data->update_lock);					\
+	data->value = type##_TO_REG(val);				\
+	gl518_write_value(client, reg, data->value);			\
+	mutex_unlock(&data->update_lock);				\
+	return count;							\
+}
+
+#define set_bits(type, suffix, value, reg, mask, shift)			\
+static ssize_t set_##suffix(struct device *dev, struct device_attribute *attr, const char *buf,	\
+	size_t count)							\
+{									\
+	struct i2c_client *client = to_i2c_client(dev);			\
+	struct gl518_data *data = i2c_get_clientdata(client);		\
+	int regvalue;							\
+	unsigned long val = simple_strtoul(buf, NULL, 10);		\
+									\
+	mutex_lock(&data->update_lock);					\
+	regvalue = gl518_read_value(client, reg);			\
+	data->value = type##_TO_REG(val);				\
+	regvalue = (regvalue & ~mask) | (data->value << shift);		\
+	gl518_write_value(client, reg, regvalue);			\
+	mutex_unlock(&data->update_lock);				\
+	return count;							\
+}
+
+#define set_low(type, suffix, value, reg)				\
+	set_bits(type, suffix, value, reg, 0x00ff, 0)
+#define set_high(type, suffix, value, reg)				\
+	set_bits(type, suffix, value, reg, 0xff00, 8)
+
+set(TEMP, temp_max1, temp_max, GL518_REG_TEMP_MAX);
+set(TEMP, temp_hyst1, temp_hyst, GL518_REG_TEMP_HYST);
+set_bits(BOOL, fan_auto1, fan_auto1, GL518_REG_MISC, 0x08, 3);
+set_low(VDD, in_min0, voltage_min[0], GL518_REG_VDD_LIMIT);
+set_low(IN, in_min1, voltage_min[1], GL518_REG_VIN1_LIMIT);
+set_low(IN, in_min2, voltage_min[2], GL518_REG_VIN2_LIMIT);
+set_low(IN, in_min3, voltage_min[3], GL518_REG_VIN3_LIMIT);
+set_high(VDD, in_max0, voltage_max[0], GL518_REG_VDD_LIMIT);
+set_high(IN, in_max1, voltage_max[1], GL518_REG_VIN1_LIMIT);
+set_high(IN, in_max2, voltage_max[2], GL518_REG_VIN2_LIMIT);
+set_high(IN, in_max3, voltage_max[3], GL518_REG_VIN3_LIMIT);
+set_bits(BOOL, beep_enable, beep_enable, GL518_REG_CONF, 0x04, 2);
+set(BEEP_MASK, beep_mask, beep_mask, GL518_REG_ALARM);
+
+static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
+			   const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct gl518_data *data = i2c_get_clientdata(client);
+	int nr = to_sensor_dev_attr(attr)->index;
+	int regvalue;
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	regvalue = gl518_read_value(client, GL518_REG_FAN_LIMIT);
+	data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
+	regvalue = (regvalue & (0xff << (8 * nr)))
+		 | (data->fan_min[nr] << (8 * (1 - nr)));
+	gl518_write_value(client, GL518_REG_FAN_LIMIT, regvalue);
+
+	data->beep_mask = gl518_read_value(client, GL518_REG_ALARM);
+	if (data->fan_min[nr] == 0)
+		data->alarm_mask &= ~(0x20 << nr);
+	else
+		data->alarm_mask |= (0x20 << nr);
+	data->beep_mask &= data->alarm_mask;
+	gl518_write_value(client, GL518_REG_ALARM, data->beep_mask);
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
+			   const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct gl518_data *data = i2c_get_clientdata(client);
+	int nr = to_sensor_dev_attr(attr)->index;
+	int regvalue;
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	switch (val) {
+	case 1: val = 0; break;
+	case 2: val = 1; break;
+	case 4: val = 2; break;
+	case 8: val = 3; break;
+	default:
+		dev_err(dev, "Invalid fan clock divider %lu, choose one "
+			"of 1, 2, 4 or 8\n", val);
+		return -EINVAL;
+	}
+
+	mutex_lock(&data->update_lock);
+	regvalue = gl518_read_value(client, GL518_REG_MISC);
+	data->fan_div[nr] = val;
+	regvalue = (regvalue & ~(0xc0 >> (2 * nr)))
+		 | (data->fan_div[nr] << (6 - 2 * nr));
+	gl518_write_value(client, GL518_REG_MISC, regvalue);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input1, NULL);
+static DEVICE_ATTR(temp1_max, S_IWUSR|S_IRUGO, show_temp_max1, set_temp_max1);
+static DEVICE_ATTR(temp1_max_hyst, S_IWUSR|S_IRUGO,
+	show_temp_hyst1, set_temp_hyst1);
+static DEVICE_ATTR(fan1_auto, S_IWUSR|S_IRUGO, show_fan_auto1, set_fan_auto1);
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR|S_IRUGO,
+	show_fan_min, set_fan_min, 0);
+static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR|S_IRUGO,
+	show_fan_min, set_fan_min, 1);
+static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR|S_IRUGO,
+	show_fan_div, set_fan_div, 0);
+static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR|S_IRUGO,
+	show_fan_div, set_fan_div, 1);
+static DEVICE_ATTR(in0_input, S_IRUGO, show_in_input0, NULL);
+static DEVICE_ATTR(in1_input, S_IRUGO, show_in_input1, NULL);
+static DEVICE_ATTR(in2_input, S_IRUGO, show_in_input2, NULL);
+static DEVICE_ATTR(in3_input, S_IRUGO, show_in_input3, NULL);
+static DEVICE_ATTR(in0_min, S_IWUSR|S_IRUGO, show_in_min0, set_in_min0);
+static DEVICE_ATTR(in1_min, S_IWUSR|S_IRUGO, show_in_min1, set_in_min1);
+static DEVICE_ATTR(in2_min, S_IWUSR|S_IRUGO, show_in_min2, set_in_min2);
+static DEVICE_ATTR(in3_min, S_IWUSR|S_IRUGO, show_in_min3, set_in_min3);
+static DEVICE_ATTR(in0_max, S_IWUSR|S_IRUGO, show_in_max0, set_in_max0);
+static DEVICE_ATTR(in1_max, S_IWUSR|S_IRUGO, show_in_max1, set_in_max1);
+static DEVICE_ATTR(in2_max, S_IWUSR|S_IRUGO, show_in_max2, set_in_max2);
+static DEVICE_ATTR(in3_max, S_IWUSR|S_IRUGO, show_in_max3, set_in_max3);
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+static DEVICE_ATTR(beep_enable, S_IWUSR|S_IRUGO,
+	show_beep_enable, set_beep_enable);
+static DEVICE_ATTR(beep_mask, S_IWUSR|S_IRUGO,
+	show_beep_mask, set_beep_mask);
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	struct gl518_data *data = gl518_update_device(dev);
+	return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
+}
+
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6);
+
+static ssize_t show_beep(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	struct gl518_data *data = gl518_update_device(dev);
+	return sprintf(buf, "%u\n", (data->beep_mask >> bitnr) & 1);
+}
+
+static ssize_t set_beep(struct device *dev, struct device_attribute *attr,
+			const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct gl518_data *data = i2c_get_clientdata(client);
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	unsigned long bit;
+
+	bit = simple_strtoul(buf, NULL, 10);
+	if (bit & ~1)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	data->beep_mask = gl518_read_value(client, GL518_REG_ALARM);
+	if (bit)
+		data->beep_mask |= (1 << bitnr);
+	else
+		data->beep_mask &= ~(1 << bitnr);
+	gl518_write_value(client, GL518_REG_ALARM, data->beep_mask);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 0);
+static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 1);
+static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 2);
+static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 3);
+static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 4);
+static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 5);
+static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 6);
+
+static struct attribute *gl518_attributes[] = {
+	&dev_attr_in3_input.attr,
+	&dev_attr_in0_min.attr,
+	&dev_attr_in1_min.attr,
+	&dev_attr_in2_min.attr,
+	&dev_attr_in3_min.attr,
+	&dev_attr_in0_max.attr,
+	&dev_attr_in1_max.attr,
+	&dev_attr_in2_max.attr,
+	&dev_attr_in3_max.attr,
+	&sensor_dev_attr_in0_alarm.dev_attr.attr,
+	&sensor_dev_attr_in1_alarm.dev_attr.attr,
+	&sensor_dev_attr_in2_alarm.dev_attr.attr,
+	&sensor_dev_attr_in3_alarm.dev_attr.attr,
+	&sensor_dev_attr_in0_beep.dev_attr.attr,
+	&sensor_dev_attr_in1_beep.dev_attr.attr,
+	&sensor_dev_attr_in2_beep.dev_attr.attr,
+	&sensor_dev_attr_in3_beep.dev_attr.attr,
+
+	&dev_attr_fan1_auto.attr,
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_div.dev_attr.attr,
+	&sensor_dev_attr_fan2_div.dev_attr.attr,
+	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan1_beep.dev_attr.attr,
+	&sensor_dev_attr_fan2_beep.dev_attr.attr,
+
+	&dev_attr_temp1_input.attr,
+	&dev_attr_temp1_max.attr,
+	&dev_attr_temp1_max_hyst.attr,
+	&sensor_dev_attr_temp1_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_beep.dev_attr.attr,
+
+	&dev_attr_alarms.attr,
+	&dev_attr_beep_enable.attr,
+	&dev_attr_beep_mask.attr,
+	NULL
+};
+
+static const struct attribute_group gl518_group = {
+	.attrs = gl518_attributes,
+};
+
+static struct attribute *gl518_attributes_r80[] = {
+	&dev_attr_in0_input.attr,
+	&dev_attr_in1_input.attr,
+	&dev_attr_in2_input.attr,
+	NULL
+};
+
+static const struct attribute_group gl518_group_r80 = {
+	.attrs = gl518_attributes_r80,
+};
+
+/*
+ * Real code
+ */
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int gl518_detect(struct i2c_client *client, int kind,
+			struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+	int i;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
+				     I2C_FUNC_SMBUS_WORD_DATA))
+		return -ENODEV;
+
+	/* Now, we do the remaining detection. */
+
+	if (kind < 0) {
+		if ((gl518_read_value(client, GL518_REG_CHIP_ID) != 0x80)
+		 || (gl518_read_value(client, GL518_REG_CONF) & 0x80))
+			return -ENODEV;
+	}
+
+	/* Determine the chip type. */
+	if (kind <= 0) {
+		i = gl518_read_value(client, GL518_REG_REVISION);
+		if (i == 0x00) {
+			kind = gl518sm_r00;
+		} else if (i == 0x80) {
+			kind = gl518sm_r80;
+		} else {
+			if (kind <= 0)
+				dev_info(&adapter->dev,
+				    "Ignoring 'force' parameter for unknown "
+				    "chip at adapter %d, address 0x%02x\n",
+				    i2c_adapter_id(adapter), client->addr);
+			return -ENODEV;
+		}
+	}
+
+	strlcpy(info->type, "gl518sm", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int gl518_probe(struct i2c_client *client,
+		       const struct i2c_device_id *id)
+{
+	struct gl518_data *data;
+	int err, revision;
+
+	data = kzalloc(sizeof(struct gl518_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	revision = gl518_read_value(client, GL518_REG_REVISION);
+	data->type = revision == 0x80 ? gl518sm_r80 : gl518sm_r00;
+	mutex_init(&data->update_lock);
+
+	/* Initialize the GL518SM chip */
+	data->alarm_mask = 0xff;
+	gl518_init_client(client);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&client->dev.kobj, &gl518_group)))
+		goto exit_free;
+	if (data->type == gl518sm_r80)
+		if ((err = sysfs_create_group(&client->dev.kobj,
+					      &gl518_group_r80)))
+			goto exit_remove_files;
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove_files;
+	}
+
+	return 0;
+
+exit_remove_files:
+	sysfs_remove_group(&client->dev.kobj, &gl518_group);
+	if (data->type == gl518sm_r80)
+		sysfs_remove_group(&client->dev.kobj, &gl518_group_r80);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+
+/* Called when we have found a new GL518SM.
+   Note that we preserve D4:NoFan2 and D2:beep_enable. */
+static void gl518_init_client(struct i2c_client *client)
+{
+	/* Make sure we leave D7:Reset untouched */
+	u8 regvalue = gl518_read_value(client, GL518_REG_CONF) & 0x7f;
+
+	/* Comparator mode (D3=0), standby mode (D6=0) */
+	gl518_write_value(client, GL518_REG_CONF, (regvalue &= 0x37));
+
+	/* Never interrupts */
+	gl518_write_value(client, GL518_REG_MASK, 0x00);
+
+	/* Clear status register (D5=1), start (D6=1) */
+	gl518_write_value(client, GL518_REG_CONF, 0x20 | regvalue);
+	gl518_write_value(client, GL518_REG_CONF, 0x40 | regvalue);
+}
+
+static int gl518_remove(struct i2c_client *client)
+{
+	struct gl518_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &gl518_group);
+	if (data->type == gl518sm_r80)
+		sysfs_remove_group(&client->dev.kobj, &gl518_group_r80);
+
+	kfree(data);
+	return 0;
+}
+
+/* Registers 0x07 to 0x0c are word-sized, others are byte-sized
+   GL518 uses a high-byte first convention, which is exactly opposite to
+   the SMBus standard. */
+static int gl518_read_value(struct i2c_client *client, u8 reg)
+{
+	if ((reg >= 0x07) && (reg <= 0x0c))
+		return swab16(i2c_smbus_read_word_data(client, reg));
+	else
+		return i2c_smbus_read_byte_data(client, reg);
+}
+
+static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value)
+{
+	if ((reg >= 0x07) && (reg <= 0x0c))
+		return i2c_smbus_write_word_data(client, reg, swab16(value));
+	else
+		return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+static struct gl518_data *gl518_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct gl518_data *data = i2c_get_clientdata(client);
+	int val;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	    || !data->valid) {
+		dev_dbg(&client->dev, "Starting gl518 update\n");
+
+		data->alarms = gl518_read_value(client, GL518_REG_INT);
+		data->beep_mask = gl518_read_value(client, GL518_REG_ALARM);
+
+		val = gl518_read_value(client, GL518_REG_VDD_LIMIT);
+		data->voltage_min[0] = val & 0xff;
+		data->voltage_max[0] = (val >> 8) & 0xff;
+		val = gl518_read_value(client, GL518_REG_VIN1_LIMIT);
+		data->voltage_min[1] = val & 0xff;
+		data->voltage_max[1] = (val >> 8) & 0xff;
+		val = gl518_read_value(client, GL518_REG_VIN2_LIMIT);
+		data->voltage_min[2] = val & 0xff;
+		data->voltage_max[2] = (val >> 8) & 0xff;
+		val = gl518_read_value(client, GL518_REG_VIN3_LIMIT);
+		data->voltage_min[3] = val & 0xff;
+		data->voltage_max[3] = (val >> 8) & 0xff;
+
+		val = gl518_read_value(client, GL518_REG_FAN_COUNT);
+		data->fan_in[0] = (val >> 8) & 0xff;
+		data->fan_in[1] = val & 0xff;
+
+		val = gl518_read_value(client, GL518_REG_FAN_LIMIT);
+		data->fan_min[0] = (val >> 8) & 0xff;
+		data->fan_min[1] = val & 0xff;
+
+		data->temp_in = gl518_read_value(client, GL518_REG_TEMP_IN);
+		data->temp_max =
+		    gl518_read_value(client, GL518_REG_TEMP_MAX);
+		data->temp_hyst =
+		    gl518_read_value(client, GL518_REG_TEMP_HYST);
+
+		val = gl518_read_value(client, GL518_REG_MISC);
+		data->fan_div[0] = (val >> 6) & 0x03;
+		data->fan_div[1] = (val >> 4) & 0x03;
+		data->fan_auto1  = (val >> 3) & 0x01;
+
+		data->alarms &= data->alarm_mask;
+
+		val = gl518_read_value(client, GL518_REG_CONF);
+		data->beep_enable = (val >> 2) & 1;
+
+		if (data->type != gl518sm_r00) {
+			data->voltage_in[0] =
+			    gl518_read_value(client, GL518_REG_VDD);
+			data->voltage_in[1] =
+			    gl518_read_value(client, GL518_REG_VIN1);
+			data->voltage_in[2] =
+			    gl518_read_value(client, GL518_REG_VIN2);
+		}
+		data->voltage_in[3] =
+		    gl518_read_value(client, GL518_REG_VIN3);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init sensors_gl518sm_init(void)
+{
+	return i2c_add_driver(&gl518_driver);
+}
+
+static void __exit sensors_gl518sm_exit(void)
+{
+	i2c_del_driver(&gl518_driver);
+}
+
+MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
+	"Kyosti Malkki <kmalkki@cc.hut.fi> and "
+	"Hong-Gunn Chew <hglinux@gunnet.org>");
+MODULE_DESCRIPTION("GL518SM driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_gl518sm_init);
+module_exit(sensors_gl518sm_exit);
diff --git a/drivers/hwmon/gl520sm.c b/drivers/hwmon/gl520sm.c
new file mode 100644
index 0000000..19616f2
--- /dev/null
+++ b/drivers/hwmon/gl520sm.c
@@ -0,0 +1,939 @@
+/*
+    gl520sm.c - Part of lm_sensors, Linux kernel modules for hardware
+                monitoring
+    Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl>,
+                              Kyösti Mälkki <kmalkki@cc.hut.fi>
+    Copyright (c) 2005        Maarten Deprez <maartendeprez@users.sourceforge.net>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon-vid.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+
+/* Type of the extra sensor */
+static unsigned short extra_sensor_type;
+module_param(extra_sensor_type, ushort, 0);
+MODULE_PARM_DESC(extra_sensor_type, "Type of extra sensor (0=autodetect, 1=temperature, 2=voltage)");
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_1(gl520sm);
+
+/* Many GL520 constants specified below
+One of the inputs can be configured as either temp or voltage.
+That's why _TEMP2 and _IN4 access the same register
+*/
+
+/* The GL520 registers */
+#define GL520_REG_CHIP_ID		0x00
+#define GL520_REG_REVISION		0x01
+#define GL520_REG_CONF			0x03
+#define GL520_REG_MASK			0x11
+
+#define GL520_REG_VID_INPUT		0x02
+
+static const u8 GL520_REG_IN_INPUT[]	= { 0x15, 0x14, 0x13, 0x0d, 0x0e };
+static const u8 GL520_REG_IN_LIMIT[]	= { 0x0c, 0x09, 0x0a, 0x0b };
+static const u8 GL520_REG_IN_MIN[]	= { 0x0c, 0x09, 0x0a, 0x0b, 0x18 };
+static const u8 GL520_REG_IN_MAX[]	= { 0x0c, 0x09, 0x0a, 0x0b, 0x17 };
+
+static const u8 GL520_REG_TEMP_INPUT[]		= { 0x04, 0x0e };
+static const u8 GL520_REG_TEMP_MAX[]		= { 0x05, 0x17 };
+static const u8 GL520_REG_TEMP_MAX_HYST[]	= { 0x06, 0x18 };
+
+#define GL520_REG_FAN_INPUT		0x07
+#define GL520_REG_FAN_MIN		0x08
+#define GL520_REG_FAN_DIV		0x0f
+#define GL520_REG_FAN_OFF		GL520_REG_FAN_DIV
+
+#define GL520_REG_ALARMS		0x12
+#define GL520_REG_BEEP_MASK		0x10
+#define GL520_REG_BEEP_ENABLE		GL520_REG_CONF
+
+/*
+ * Function declarations
+ */
+
+static int gl520_probe(struct i2c_client *client,
+		       const struct i2c_device_id *id);
+static int gl520_detect(struct i2c_client *client, int kind,
+			struct i2c_board_info *info);
+static void gl520_init_client(struct i2c_client *client);
+static int gl520_remove(struct i2c_client *client);
+static int gl520_read_value(struct i2c_client *client, u8 reg);
+static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value);
+static struct gl520_data *gl520_update_device(struct device *dev);
+
+/* Driver data */
+static const struct i2c_device_id gl520_id[] = {
+	{ "gl520sm", gl520sm },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, gl520_id);
+
+static struct i2c_driver gl520_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "gl520sm",
+	},
+	.probe		= gl520_probe,
+	.remove		= gl520_remove,
+	.id_table	= gl520_id,
+	.detect		= gl520_detect,
+	.address_data	= &addr_data,
+};
+
+/* Client data */
+struct gl520_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	char valid;		/* zero until the following fields are valid */
+	unsigned long last_updated;	/* in jiffies */
+
+	u8 vid;
+	u8 vrm;
+	u8 in_input[5];		/* [0] = VVD */
+	u8 in_min[5];		/* [0] = VDD */
+	u8 in_max[5];		/* [0] = VDD */
+	u8 fan_input[2];
+	u8 fan_min[2];
+	u8 fan_div[2];
+	u8 fan_off;
+	u8 temp_input[2];
+	u8 temp_max[2];
+	u8 temp_max_hyst[2];
+	u8 alarms;
+	u8 beep_enable;
+	u8 beep_mask;
+	u8 alarm_mask;
+	u8 two_temps;
+};
+
+/*
+ * Sysfs stuff
+ */
+
+static ssize_t get_cpu_vid(struct device *dev, struct device_attribute *attr,
+			   char *buf)
+{
+	struct gl520_data *data = gl520_update_device(dev);
+	return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
+}
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, get_cpu_vid, NULL);
+
+#define VDD_FROM_REG(val) (((val)*95+2)/4)
+#define VDD_TO_REG(val) (SENSORS_LIMIT((((val)*4+47)/95),0,255))
+
+#define IN_FROM_REG(val) ((val)*19)
+#define IN_TO_REG(val) (SENSORS_LIMIT((((val)+9)/19),0,255))
+
+static ssize_t get_in_input(struct device *dev, struct device_attribute *attr,
+			    char *buf)
+{
+	int n = to_sensor_dev_attr(attr)->index;
+	struct gl520_data *data = gl520_update_device(dev);
+	u8 r = data->in_input[n];
+
+	if (n == 0)
+		return sprintf(buf, "%d\n", VDD_FROM_REG(r));
+	else
+		return sprintf(buf, "%d\n", IN_FROM_REG(r));
+}
+
+static ssize_t get_in_min(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	int n = to_sensor_dev_attr(attr)->index;
+	struct gl520_data *data = gl520_update_device(dev);
+	u8 r = data->in_min[n];
+
+	if (n == 0)
+		return sprintf(buf, "%d\n", VDD_FROM_REG(r));
+	else
+		return sprintf(buf, "%d\n", IN_FROM_REG(r));
+}
+
+static ssize_t get_in_max(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	int n = to_sensor_dev_attr(attr)->index;
+	struct gl520_data *data = gl520_update_device(dev);
+	u8 r = data->in_max[n];
+
+	if (n == 0)
+		return sprintf(buf, "%d\n", VDD_FROM_REG(r));
+	else
+		return sprintf(buf, "%d\n", IN_FROM_REG(r));
+}
+
+static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
+			  const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct gl520_data *data = i2c_get_clientdata(client);
+	int n = to_sensor_dev_attr(attr)->index;
+	long v = simple_strtol(buf, NULL, 10);
+	u8 r;
+
+	mutex_lock(&data->update_lock);
+
+	if (n == 0)
+		r = VDD_TO_REG(v);
+	else
+		r = IN_TO_REG(v);
+
+	data->in_min[n] = r;
+
+	if (n < 4)
+		gl520_write_value(client, GL520_REG_IN_MIN[n],
+				  (gl520_read_value(client, GL520_REG_IN_MIN[n])
+				   & ~0xff) | r);
+	else
+		gl520_write_value(client, GL520_REG_IN_MIN[n], r);
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
+			  const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct gl520_data *data = i2c_get_clientdata(client);
+	int n = to_sensor_dev_attr(attr)->index;
+	long v = simple_strtol(buf, NULL, 10);
+	u8 r;
+
+	if (n == 0)
+		r = VDD_TO_REG(v);
+	else
+		r = IN_TO_REG(v);
+
+	mutex_lock(&data->update_lock);
+
+	data->in_max[n] = r;
+
+	if (n < 4)
+		gl520_write_value(client, GL520_REG_IN_MAX[n],
+				  (gl520_read_value(client, GL520_REG_IN_MAX[n])
+				   & ~0xff00) | (r << 8));
+	else
+		gl520_write_value(client, GL520_REG_IN_MAX[n], r);
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, get_in_input, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, get_in_input, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, get_in_input, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, get_in_input, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, get_in_input, NULL, 4);
+static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO | S_IWUSR,
+		get_in_min, set_in_min, 0);
+static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO | S_IWUSR,
+		get_in_min, set_in_min, 1);
+static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO | S_IWUSR,
+		get_in_min, set_in_min, 2);
+static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO | S_IWUSR,
+		get_in_min, set_in_min, 3);
+static SENSOR_DEVICE_ATTR(in4_min, S_IRUGO | S_IWUSR,
+		get_in_min, set_in_min, 4);
+static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO | S_IWUSR,
+		get_in_max, set_in_max, 0);
+static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO | S_IWUSR,
+		get_in_max, set_in_max, 1);
+static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO | S_IWUSR,
+		get_in_max, set_in_max, 2);
+static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO | S_IWUSR,
+		get_in_max, set_in_max, 3);
+static SENSOR_DEVICE_ATTR(in4_max, S_IRUGO | S_IWUSR,
+		get_in_max, set_in_max, 4);
+
+#define DIV_FROM_REG(val) (1 << (val))
+#define FAN_FROM_REG(val,div) ((val)==0 ? 0 : (480000/((val) << (div))))
+#define FAN_TO_REG(val,div) ((val)<=0?0:SENSORS_LIMIT((480000 + ((val) << ((div)-1))) / ((val) << (div)), 1, 255));
+
+static ssize_t get_fan_input(struct device *dev, struct device_attribute *attr,
+			     char *buf)
+{
+	int n = to_sensor_dev_attr(attr)->index;
+	struct gl520_data *data = gl520_update_device(dev);
+
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_input[n],
+						 data->fan_div[n]));
+}
+
+static ssize_t get_fan_min(struct device *dev, struct device_attribute *attr,
+			   char *buf)
+{
+	int n = to_sensor_dev_attr(attr)->index;
+	struct gl520_data *data = gl520_update_device(dev);
+
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[n],
+						 data->fan_div[n]));
+}
+
+static ssize_t get_fan_div(struct device *dev, struct device_attribute *attr,
+			   char *buf)
+{
+	int n = to_sensor_dev_attr(attr)->index;
+	struct gl520_data *data = gl520_update_device(dev);
+
+	return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[n]));
+}
+
+static ssize_t get_fan_off(struct device *dev, struct device_attribute *attr,
+			   char *buf)
+{
+	struct gl520_data *data = gl520_update_device(dev);
+	return sprintf(buf, "%d\n", data->fan_off);
+}
+
+static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
+			   const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct gl520_data *data = i2c_get_clientdata(client);
+	int n = to_sensor_dev_attr(attr)->index;
+	unsigned long v = simple_strtoul(buf, NULL, 10);
+	u8 r;
+
+	mutex_lock(&data->update_lock);
+	r = FAN_TO_REG(v, data->fan_div[n]);
+	data->fan_min[n] = r;
+
+	if (n == 0)
+		gl520_write_value(client, GL520_REG_FAN_MIN,
+				  (gl520_read_value(client, GL520_REG_FAN_MIN)
+				   & ~0xff00) | (r << 8));
+	else
+		gl520_write_value(client, GL520_REG_FAN_MIN,
+				  (gl520_read_value(client, GL520_REG_FAN_MIN)
+				   & ~0xff) | r);
+
+	data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK);
+	if (data->fan_min[n] == 0)
+		data->alarm_mask &= (n == 0) ? ~0x20 : ~0x40;
+	else
+		data->alarm_mask |= (n == 0) ? 0x20 : 0x40;
+	data->beep_mask &= data->alarm_mask;
+	gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask);
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
+			   const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct gl520_data *data = i2c_get_clientdata(client);
+	int n = to_sensor_dev_attr(attr)->index;
+	unsigned long v = simple_strtoul(buf, NULL, 10);
+	u8 r;
+
+	switch (v) {
+	case 1: r = 0; break;
+	case 2: r = 1; break;
+	case 4: r = 2; break;
+	case 8: r = 3; break;
+	default:
+		dev_err(&client->dev, "fan_div value %ld not supported. Choose one of 1, 2, 4 or 8!\n", v);
+		return -EINVAL;
+	}
+
+	mutex_lock(&data->update_lock);
+	data->fan_div[n] = r;
+
+	if (n == 0)
+		gl520_write_value(client, GL520_REG_FAN_DIV,
+				  (gl520_read_value(client, GL520_REG_FAN_DIV)
+				   & ~0xc0) | (r << 6));
+	else
+		gl520_write_value(client, GL520_REG_FAN_DIV,
+				  (gl520_read_value(client, GL520_REG_FAN_DIV)
+				   & ~0x30) | (r << 4));
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t set_fan_off(struct device *dev, struct device_attribute *attr,
+			   const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct gl520_data *data = i2c_get_clientdata(client);
+	u8 r = simple_strtoul(buf, NULL, 10)?1:0;
+
+	mutex_lock(&data->update_lock);
+	data->fan_off = r;
+	gl520_write_value(client, GL520_REG_FAN_OFF,
+			  (gl520_read_value(client, GL520_REG_FAN_OFF)
+			   & ~0x0c) | (r << 2));
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, get_fan_input, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, get_fan_input, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO | S_IWUSR,
+		get_fan_min, set_fan_min, 0);
+static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO | S_IWUSR,
+		get_fan_min, set_fan_min, 1);
+static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR,
+		get_fan_div, set_fan_div, 0);
+static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR,
+		get_fan_div, set_fan_div, 1);
+static DEVICE_ATTR(fan1_off, S_IRUGO | S_IWUSR,
+		get_fan_off, set_fan_off);
+
+#define TEMP_FROM_REG(val) (((val) - 130) * 1000)
+#define TEMP_TO_REG(val) (SENSORS_LIMIT(((((val)<0?(val)-500:(val)+500) / 1000)+130),0,255))
+
+static ssize_t get_temp_input(struct device *dev, struct device_attribute *attr,
+			      char *buf)
+{
+	int n = to_sensor_dev_attr(attr)->index;
+	struct gl520_data *data = gl520_update_device(dev);
+
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_input[n]));
+}
+
+static ssize_t get_temp_max(struct device *dev, struct device_attribute *attr,
+			    char *buf)
+{
+	int n = to_sensor_dev_attr(attr)->index;
+	struct gl520_data *data = gl520_update_device(dev);
+
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[n]));
+}
+
+static ssize_t get_temp_max_hyst(struct device *dev, struct device_attribute
+				 *attr, char *buf)
+{
+	int n = to_sensor_dev_attr(attr)->index;
+	struct gl520_data *data = gl520_update_device(dev);
+
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max_hyst[n]));
+}
+
+static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
+			    const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct gl520_data *data = i2c_get_clientdata(client);
+	int n = to_sensor_dev_attr(attr)->index;
+	long v = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_max[n] = TEMP_TO_REG(v);
+	gl520_write_value(client, GL520_REG_TEMP_MAX[n], data->temp_max[n]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t set_temp_max_hyst(struct device *dev, struct device_attribute
+				 *attr, const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct gl520_data *data = i2c_get_clientdata(client);
+	int n = to_sensor_dev_attr(attr)->index;
+	long v = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_max_hyst[n] = TEMP_TO_REG(v);
+	gl520_write_value(client, GL520_REG_TEMP_MAX_HYST[n],
+			  data->temp_max_hyst[n]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, get_temp_input, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, get_temp_input, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR,
+		get_temp_max, set_temp_max, 0);
+static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO | S_IWUSR,
+		get_temp_max, set_temp_max, 1);
+static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR,
+		get_temp_max_hyst, set_temp_max_hyst, 0);
+static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR,
+		get_temp_max_hyst, set_temp_max_hyst, 1);
+
+static ssize_t get_alarms(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	struct gl520_data *data = gl520_update_device(dev);
+	return sprintf(buf, "%d\n", data->alarms);
+}
+
+static ssize_t get_beep_enable(struct device *dev, struct device_attribute
+			       *attr, char *buf)
+{
+	struct gl520_data *data = gl520_update_device(dev);
+	return sprintf(buf, "%d\n", data->beep_enable);
+}
+
+static ssize_t get_beep_mask(struct device *dev, struct device_attribute *attr,
+			     char *buf)
+{
+	struct gl520_data *data = gl520_update_device(dev);
+	return sprintf(buf, "%d\n", data->beep_mask);
+}
+
+static ssize_t set_beep_enable(struct device *dev, struct device_attribute
+			       *attr, const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct gl520_data *data = i2c_get_clientdata(client);
+	u8 r = simple_strtoul(buf, NULL, 10)?0:1;
+
+	mutex_lock(&data->update_lock);
+	data->beep_enable = !r;
+	gl520_write_value(client, GL520_REG_BEEP_ENABLE,
+			  (gl520_read_value(client, GL520_REG_BEEP_ENABLE)
+			   & ~0x04) | (r << 2));
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t set_beep_mask(struct device *dev, struct device_attribute *attr,
+			     const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct gl520_data *data = i2c_get_clientdata(client);
+	u8 r = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	r &= data->alarm_mask;
+	data->beep_mask = r;
+	gl520_write_value(client, GL520_REG_BEEP_MASK, r);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(alarms, S_IRUGO, get_alarms, NULL);
+static DEVICE_ATTR(beep_enable, S_IRUGO | S_IWUSR,
+		get_beep_enable, set_beep_enable);
+static DEVICE_ATTR(beep_mask, S_IRUGO | S_IWUSR,
+		get_beep_mask, set_beep_mask);
+
+static ssize_t get_alarm(struct device *dev, struct device_attribute *attr,
+			 char *buf)
+{
+	int bit_nr = to_sensor_dev_attr(attr)->index;
+	struct gl520_data *data = gl520_update_device(dev);
+
+	return sprintf(buf, "%d\n", (data->alarms >> bit_nr) & 1);
+}
+
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, get_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, get_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, get_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, get_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, get_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, get_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, get_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, get_alarm, NULL, 7);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, get_alarm, NULL, 7);
+
+static ssize_t get_beep(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	struct gl520_data *data = gl520_update_device(dev);
+
+	return sprintf(buf, "%d\n", (data->beep_mask >> bitnr) & 1);
+}
+
+static ssize_t set_beep(struct device *dev, struct device_attribute *attr,
+			const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct gl520_data *data = i2c_get_clientdata(client);
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	unsigned long bit;
+
+	bit = simple_strtoul(buf, NULL, 10);
+	if (bit & ~1)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK);
+	if (bit)
+		data->beep_mask |= (1 << bitnr);
+	else
+		data->beep_mask &= ~(1 << bitnr);
+	gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 0);
+static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 1);
+static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 2);
+static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 3);
+static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 4);
+static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 5);
+static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 6);
+static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 7);
+static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO | S_IWUSR, get_beep, set_beep, 7);
+
+static struct attribute *gl520_attributes[] = {
+	&dev_attr_cpu0_vid.attr,
+
+	&sensor_dev_attr_in0_input.dev_attr.attr,
+	&sensor_dev_attr_in0_min.dev_attr.attr,
+	&sensor_dev_attr_in0_max.dev_attr.attr,
+	&sensor_dev_attr_in0_alarm.dev_attr.attr,
+	&sensor_dev_attr_in0_beep.dev_attr.attr,
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in1_min.dev_attr.attr,
+	&sensor_dev_attr_in1_max.dev_attr.attr,
+	&sensor_dev_attr_in1_alarm.dev_attr.attr,
+	&sensor_dev_attr_in1_beep.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in2_min.dev_attr.attr,
+	&sensor_dev_attr_in2_max.dev_attr.attr,
+	&sensor_dev_attr_in2_alarm.dev_attr.attr,
+	&sensor_dev_attr_in2_beep.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in3_min.dev_attr.attr,
+	&sensor_dev_attr_in3_max.dev_attr.attr,
+	&sensor_dev_attr_in3_alarm.dev_attr.attr,
+	&sensor_dev_attr_in3_beep.dev_attr.attr,
+
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_div.dev_attr.attr,
+	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan1_beep.dev_attr.attr,
+	&dev_attr_fan1_off.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_div.dev_attr.attr,
+	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan2_beep.dev_attr.attr,
+
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp1_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_beep.dev_attr.attr,
+
+	&dev_attr_alarms.attr,
+	&dev_attr_beep_enable.attr,
+	&dev_attr_beep_mask.attr,
+	NULL
+};
+
+static const struct attribute_group gl520_group = {
+	.attrs = gl520_attributes,
+};
+
+static struct attribute *gl520_attributes_opt[] = {
+	&sensor_dev_attr_in4_input.dev_attr.attr,
+	&sensor_dev_attr_in4_min.dev_attr.attr,
+	&sensor_dev_attr_in4_max.dev_attr.attr,
+	&sensor_dev_attr_in4_alarm.dev_attr.attr,
+	&sensor_dev_attr_in4_beep.dev_attr.attr,
+
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp2_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_beep.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group gl520_group_opt = {
+	.attrs = gl520_attributes_opt,
+};
+
+
+/*
+ * Real code
+ */
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int gl520_detect(struct i2c_client *client, int kind,
+			struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
+				     I2C_FUNC_SMBUS_WORD_DATA))
+		return -ENODEV;
+
+	/* Determine the chip type. */
+	if (kind < 0) {
+		if ((gl520_read_value(client, GL520_REG_CHIP_ID) != 0x20) ||
+		    ((gl520_read_value(client, GL520_REG_REVISION) & 0x7f) != 0x00) ||
+		    ((gl520_read_value(client, GL520_REG_CONF) & 0x80) != 0x00)) {
+			dev_dbg(&client->dev, "Unknown chip type, skipping\n");
+			return -ENODEV;
+		}
+	}
+
+	strlcpy(info->type, "gl520sm", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int gl520_probe(struct i2c_client *client,
+		       const struct i2c_device_id *id)
+{
+	struct gl520_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct gl520_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
+
+	/* Initialize the GL520SM chip */
+	gl520_init_client(client);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&client->dev.kobj, &gl520_group)))
+		goto exit_free;
+
+	if (data->two_temps) {
+		if ((err = device_create_file(&client->dev,
+				&sensor_dev_attr_temp2_input.dev_attr))
+		 || (err = device_create_file(&client->dev,
+				&sensor_dev_attr_temp2_max.dev_attr))
+		 || (err = device_create_file(&client->dev,
+				&sensor_dev_attr_temp2_max_hyst.dev_attr))
+		 || (err = device_create_file(&client->dev,
+				&sensor_dev_attr_temp2_alarm.dev_attr))
+		 || (err = device_create_file(&client->dev,
+				&sensor_dev_attr_temp2_beep.dev_attr)))
+			goto exit_remove_files;
+	} else {
+		if ((err = device_create_file(&client->dev,
+				&sensor_dev_attr_in4_input.dev_attr))
+		 || (err = device_create_file(&client->dev,
+				&sensor_dev_attr_in4_min.dev_attr))
+		 || (err = device_create_file(&client->dev,
+				&sensor_dev_attr_in4_max.dev_attr))
+		 || (err = device_create_file(&client->dev,
+				&sensor_dev_attr_in4_alarm.dev_attr))
+		 || (err = device_create_file(&client->dev,
+				&sensor_dev_attr_in4_beep.dev_attr)))
+			goto exit_remove_files;
+	}
+
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove_files;
+	}
+
+	return 0;
+
+exit_remove_files:
+	sysfs_remove_group(&client->dev.kobj, &gl520_group);
+	sysfs_remove_group(&client->dev.kobj, &gl520_group_opt);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+
+/* Called when we have found a new GL520SM. */
+static void gl520_init_client(struct i2c_client *client)
+{
+	struct gl520_data *data = i2c_get_clientdata(client);
+	u8 oldconf, conf;
+
+	conf = oldconf = gl520_read_value(client, GL520_REG_CONF);
+
+	data->alarm_mask = 0xff;
+	data->vrm = vid_which_vrm();
+
+	if (extra_sensor_type == 1)
+		conf &= ~0x10;
+	else if (extra_sensor_type == 2)
+		conf |= 0x10;
+	data->two_temps = !(conf & 0x10);
+
+	/* If IRQ# is disabled, we can safely force comparator mode */
+	if (!(conf & 0x20))
+		conf &= 0xf7;
+
+	/* Enable monitoring if needed */
+	conf |= 0x40;
+
+	if (conf != oldconf)
+		gl520_write_value(client, GL520_REG_CONF, conf);
+
+	gl520_update_device(&(client->dev));
+
+	if (data->fan_min[0] == 0)
+		data->alarm_mask &= ~0x20;
+	if (data->fan_min[1] == 0)
+		data->alarm_mask &= ~0x40;
+
+	data->beep_mask &= data->alarm_mask;
+	gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask);
+}
+
+static int gl520_remove(struct i2c_client *client)
+{
+	struct gl520_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &gl520_group);
+	sysfs_remove_group(&client->dev.kobj, &gl520_group_opt);
+
+	kfree(data);
+	return 0;
+}
+
+
+/* Registers 0x07 to 0x0c are word-sized, others are byte-sized
+   GL520 uses a high-byte first convention */
+static int gl520_read_value(struct i2c_client *client, u8 reg)
+{
+	if ((reg >= 0x07) && (reg <= 0x0c))
+		return swab16(i2c_smbus_read_word_data(client, reg));
+	else
+		return i2c_smbus_read_byte_data(client, reg);
+}
+
+static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value)
+{
+	if ((reg >= 0x07) && (reg <= 0x0c))
+		return i2c_smbus_write_word_data(client, reg, swab16(value));
+	else
+		return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+
+static struct gl520_data *gl520_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct gl520_data *data = i2c_get_clientdata(client);
+	int val, i;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) {
+
+		dev_dbg(&client->dev, "Starting gl520sm update\n");
+
+		data->alarms = gl520_read_value(client, GL520_REG_ALARMS);
+		data->beep_mask = gl520_read_value(client, GL520_REG_BEEP_MASK);
+		data->vid = gl520_read_value(client, GL520_REG_VID_INPUT) & 0x1f;
+
+		for (i = 0; i < 4; i++) {
+			data->in_input[i] = gl520_read_value(client,
+							GL520_REG_IN_INPUT[i]);
+			val = gl520_read_value(client, GL520_REG_IN_LIMIT[i]);
+			data->in_min[i] = val & 0xff;
+			data->in_max[i] = (val >> 8) & 0xff;
+		}
+
+		val = gl520_read_value(client, GL520_REG_FAN_INPUT);
+		data->fan_input[0] = (val >> 8) & 0xff;
+		data->fan_input[1] = val & 0xff;
+
+		val = gl520_read_value(client, GL520_REG_FAN_MIN);
+		data->fan_min[0] = (val >> 8) & 0xff;
+		data->fan_min[1] = val & 0xff;
+
+		data->temp_input[0] = gl520_read_value(client,
+						GL520_REG_TEMP_INPUT[0]);
+		data->temp_max[0] = gl520_read_value(client,
+						GL520_REG_TEMP_MAX[0]);
+		data->temp_max_hyst[0] = gl520_read_value(client,
+						GL520_REG_TEMP_MAX_HYST[0]);
+
+		val = gl520_read_value(client, GL520_REG_FAN_DIV);
+		data->fan_div[0] = (val >> 6) & 0x03;
+		data->fan_div[1] = (val >> 4) & 0x03;
+		data->fan_off = (val >> 2) & 0x01;
+
+		data->alarms &= data->alarm_mask;
+
+		val = gl520_read_value(client, GL520_REG_CONF);
+		data->beep_enable = !((val >> 2) & 1);
+
+		/* Temp1 and Vin4 are the same input */
+		if (data->two_temps) {
+			data->temp_input[1] = gl520_read_value(client,
+						GL520_REG_TEMP_INPUT[1]);
+			data->temp_max[1] = gl520_read_value(client,
+						GL520_REG_TEMP_MAX[1]);
+			data->temp_max_hyst[1] = gl520_read_value(client,
+						GL520_REG_TEMP_MAX_HYST[1]);
+		} else {
+			data->in_input[4] = gl520_read_value(client,
+						GL520_REG_IN_INPUT[4]);
+			data->in_min[4] = gl520_read_value(client,
+						GL520_REG_IN_MIN[4]);
+			data->in_max[4] = gl520_read_value(client,
+						GL520_REG_IN_MAX[4]);
+		}
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+
+static int __init sensors_gl520sm_init(void)
+{
+	return i2c_add_driver(&gl520_driver);
+}
+
+static void __exit sensors_gl520sm_exit(void)
+{
+	i2c_del_driver(&gl520_driver);
+}
+
+
+MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
+	"Kyösti Mälkki <kmalkki@cc.hut.fi>, "
+	"Maarten Deprez <maartendeprez@users.sourceforge.net>");
+MODULE_DESCRIPTION("GL520SM driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_gl520sm_init);
+module_exit(sensors_gl520sm_exit);
diff --git a/drivers/hwmon/hdaps.c b/drivers/hwmon/hdaps.c
new file mode 100644
index 0000000..a4d92d2
--- /dev/null
+++ b/drivers/hwmon/hdaps.c
@@ -0,0 +1,635 @@
+/*
+ * drivers/hwmon/hdaps.c - driver for IBM's Hard Drive Active Protection System
+ *
+ * Copyright (C) 2005 Robert Love <rml@novell.com>
+ * Copyright (C) 2005 Jesper Juhl <jesper.juhl@gmail.com>
+ *
+ * The HardDisk Active Protection System (hdaps) is present in IBM ThinkPads
+ * starting with the R40, T41, and X40.  It provides a basic two-axis
+ * accelerometer and other data, such as the device's temperature.
+ *
+ * This driver is based on the document by Mark A. Smith available at
+ * http://www.almaden.ibm.com/cs/people/marksmith/tpaps.html and a lot of trial
+ * and error.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License v2 as published by the
+ * Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/input-polldev.h>
+#include <linux/kernel.h>
+#include <linux/mutex.h>
+#include <linux/module.h>
+#include <linux/timer.h>
+#include <linux/dmi.h>
+#include <linux/jiffies.h>
+
+#include <asm/io.h>
+
+#define HDAPS_LOW_PORT		0x1600	/* first port used by hdaps */
+#define HDAPS_NR_PORTS		0x30	/* number of ports: 0x1600 - 0x162f */
+
+#define HDAPS_PORT_STATE	0x1611	/* device state */
+#define HDAPS_PORT_YPOS		0x1612	/* y-axis position */
+#define	HDAPS_PORT_XPOS		0x1614	/* x-axis position */
+#define HDAPS_PORT_TEMP1	0x1616	/* device temperature, in Celsius */
+#define HDAPS_PORT_YVAR		0x1617	/* y-axis variance (what is this?) */
+#define HDAPS_PORT_XVAR		0x1619	/* x-axis variance (what is this?) */
+#define HDAPS_PORT_TEMP2	0x161b	/* device temperature (again?) */
+#define HDAPS_PORT_UNKNOWN	0x161c	/* what is this? */
+#define HDAPS_PORT_KMACT	0x161d	/* keyboard or mouse activity */
+
+#define STATE_FRESH		0x50	/* accelerometer data is fresh */
+
+#define KEYBD_MASK		0x20	/* set if keyboard activity */
+#define MOUSE_MASK		0x40	/* set if mouse activity */
+#define KEYBD_ISSET(n)		(!! (n & KEYBD_MASK))	/* keyboard used? */
+#define MOUSE_ISSET(n)		(!! (n & MOUSE_MASK))	/* mouse used? */
+
+#define INIT_TIMEOUT_MSECS	4000	/* wait up to 4s for device init ... */
+#define INIT_WAIT_MSECS		200	/* ... in 200ms increments */
+
+#define HDAPS_POLL_INTERVAL	50	/* poll for input every 1/20s (50 ms)*/
+#define HDAPS_INPUT_FUZZ	4	/* input event threshold */
+#define HDAPS_INPUT_FLAT	4
+
+static struct platform_device *pdev;
+static struct input_polled_dev *hdaps_idev;
+static unsigned int hdaps_invert;
+static u8 km_activity;
+static int rest_x;
+static int rest_y;
+
+static DEFINE_MUTEX(hdaps_mtx);
+
+/*
+ * __get_latch - Get the value from a given port.  Callers must hold hdaps_mtx.
+ */
+static inline u8 __get_latch(u16 port)
+{
+	return inb(port) & 0xff;
+}
+
+/*
+ * __check_latch - Check a port latch for a given value.  Returns zero if the
+ * port contains the given value.  Callers must hold hdaps_mtx.
+ */
+static inline int __check_latch(u16 port, u8 val)
+{
+	if (__get_latch(port) == val)
+		return 0;
+	return -EINVAL;
+}
+
+/*
+ * __wait_latch - Wait up to 100us for a port latch to get a certain value,
+ * returning zero if the value is obtained.  Callers must hold hdaps_mtx.
+ */
+static int __wait_latch(u16 port, u8 val)
+{
+	unsigned int i;
+
+	for (i = 0; i < 20; i++) {
+		if (!__check_latch(port, val))
+			return 0;
+		udelay(5);
+	}
+
+	return -EIO;
+}
+
+/*
+ * __device_refresh - request a refresh from the accelerometer.  Does not wait
+ * for refresh to complete.  Callers must hold hdaps_mtx.
+ */
+static void __device_refresh(void)
+{
+	udelay(200);
+	if (inb(0x1604) != STATE_FRESH) {
+		outb(0x11, 0x1610);
+		outb(0x01, 0x161f);
+	}
+}
+
+/*
+ * __device_refresh_sync - request a synchronous refresh from the
+ * accelerometer.  We wait for the refresh to complete.  Returns zero if
+ * successful and nonzero on error.  Callers must hold hdaps_mtx.
+ */
+static int __device_refresh_sync(void)
+{
+	__device_refresh();
+	return __wait_latch(0x1604, STATE_FRESH);
+}
+
+/*
+ * __device_complete - indicate to the accelerometer that we are done reading
+ * data, and then initiate an async refresh.  Callers must hold hdaps_mtx.
+ */
+static inline void __device_complete(void)
+{
+	inb(0x161f);
+	inb(0x1604);
+	__device_refresh();
+}
+
+/*
+ * hdaps_readb_one - reads a byte from a single I/O port, placing the value in
+ * the given pointer.  Returns zero on success or a negative error on failure.
+ * Can sleep.
+ */
+static int hdaps_readb_one(unsigned int port, u8 *val)
+{
+	int ret;
+
+	mutex_lock(&hdaps_mtx);
+
+	/* do a sync refresh -- we need to be sure that we read fresh data */
+	ret = __device_refresh_sync();
+	if (ret)
+		goto out;
+
+	*val = inb(port);
+	__device_complete();
+
+out:
+	mutex_unlock(&hdaps_mtx);
+	return ret;
+}
+
+/* __hdaps_read_pair - internal lockless helper for hdaps_read_pair(). */
+static int __hdaps_read_pair(unsigned int port1, unsigned int port2,
+			     int *x, int *y)
+{
+	/* do a sync refresh -- we need to be sure that we read fresh data */
+	if (__device_refresh_sync())
+		return -EIO;
+
+	*y = inw(port2);
+	*x = inw(port1);
+	km_activity = inb(HDAPS_PORT_KMACT);
+	__device_complete();
+
+	/* if hdaps_invert is set, negate the two values */
+	if (hdaps_invert) {
+		*x = -*x;
+		*y = -*y;
+	}
+
+	return 0;
+}
+
+/*
+ * hdaps_read_pair - reads the values from a pair of ports, placing the values
+ * in the given pointers.  Returns zero on success.  Can sleep.
+ */
+static int hdaps_read_pair(unsigned int port1, unsigned int port2,
+			   int *val1, int *val2)
+{
+	int ret;
+
+	mutex_lock(&hdaps_mtx);
+	ret = __hdaps_read_pair(port1, port2, val1, val2);
+	mutex_unlock(&hdaps_mtx);
+
+	return ret;
+}
+
+/*
+ * hdaps_device_init - initialize the accelerometer.  Returns zero on success
+ * and negative error code on failure.  Can sleep.
+ */
+static int hdaps_device_init(void)
+{
+	int total, ret = -ENXIO;
+
+	mutex_lock(&hdaps_mtx);
+
+	outb(0x13, 0x1610);
+	outb(0x01, 0x161f);
+	if (__wait_latch(0x161f, 0x00))
+		goto out;
+
+	/*
+	 * Most ThinkPads return 0x01.
+	 *
+	 * Others--namely the R50p, T41p, and T42p--return 0x03.  These laptops
+	 * have "inverted" axises.
+	 *
+	 * The 0x02 value occurs when the chip has been previously initialized.
+	 */
+	if (__check_latch(0x1611, 0x03) &&
+		     __check_latch(0x1611, 0x02) &&
+		     __check_latch(0x1611, 0x01))
+		goto out;
+
+	printk(KERN_DEBUG "hdaps: initial latch check good (0x%02x).\n",
+	       __get_latch(0x1611));
+
+	outb(0x17, 0x1610);
+	outb(0x81, 0x1611);
+	outb(0x01, 0x161f);
+	if (__wait_latch(0x161f, 0x00))
+		goto out;
+	if (__wait_latch(0x1611, 0x00))
+		goto out;
+	if (__wait_latch(0x1612, 0x60))
+		goto out;
+	if (__wait_latch(0x1613, 0x00))
+		goto out;
+	outb(0x14, 0x1610);
+	outb(0x01, 0x1611);
+	outb(0x01, 0x161f);
+	if (__wait_latch(0x161f, 0x00))
+		goto out;
+	outb(0x10, 0x1610);
+	outb(0xc8, 0x1611);
+	outb(0x00, 0x1612);
+	outb(0x02, 0x1613);
+	outb(0x01, 0x161f);
+	if (__wait_latch(0x161f, 0x00))
+		goto out;
+	if (__device_refresh_sync())
+		goto out;
+	if (__wait_latch(0x1611, 0x00))
+		goto out;
+
+	/* we have done our dance, now let's wait for the applause */
+	for (total = INIT_TIMEOUT_MSECS; total > 0; total -= INIT_WAIT_MSECS) {
+		int x, y;
+
+		/* a read of the device helps push it into action */
+		__hdaps_read_pair(HDAPS_PORT_XPOS, HDAPS_PORT_YPOS, &x, &y);
+		if (!__wait_latch(0x1611, 0x02)) {
+			ret = 0;
+			break;
+		}
+
+		msleep(INIT_WAIT_MSECS);
+	}
+
+out:
+	mutex_unlock(&hdaps_mtx);
+	return ret;
+}
+
+
+/* Device model stuff */
+
+static int hdaps_probe(struct platform_device *dev)
+{
+	int ret;
+
+	ret = hdaps_device_init();
+	if (ret)
+		return ret;
+
+	printk(KERN_INFO "hdaps: device successfully initialized.\n");
+	return 0;
+}
+
+static int hdaps_resume(struct platform_device *dev)
+{
+	return hdaps_device_init();
+}
+
+static struct platform_driver hdaps_driver = {
+	.probe = hdaps_probe,
+	.resume = hdaps_resume,
+	.driver	= {
+		.name = "hdaps",
+		.owner = THIS_MODULE,
+	},
+};
+
+/*
+ * hdaps_calibrate - Set our "resting" values.  Callers must hold hdaps_mtx.
+ */
+static void hdaps_calibrate(void)
+{
+	__hdaps_read_pair(HDAPS_PORT_XPOS, HDAPS_PORT_YPOS, &rest_x, &rest_y);
+}
+
+static void hdaps_mousedev_poll(struct input_polled_dev *dev)
+{
+	struct input_dev *input_dev = dev->input;
+	int x, y;
+
+	mutex_lock(&hdaps_mtx);
+
+	if (__hdaps_read_pair(HDAPS_PORT_XPOS, HDAPS_PORT_YPOS, &x, &y))
+		goto out;
+
+	input_report_abs(input_dev, ABS_X, x - rest_x);
+	input_report_abs(input_dev, ABS_Y, y - rest_y);
+	input_sync(input_dev);
+
+out:
+	mutex_unlock(&hdaps_mtx);
+}
+
+
+/* Sysfs Files */
+
+static ssize_t hdaps_position_show(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	int ret, x, y;
+
+	ret = hdaps_read_pair(HDAPS_PORT_XPOS, HDAPS_PORT_YPOS, &x, &y);
+	if (ret)
+		return ret;
+
+	return sprintf(buf, "(%d,%d)\n", x, y);
+}
+
+static ssize_t hdaps_variance_show(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	int ret, x, y;
+
+	ret = hdaps_read_pair(HDAPS_PORT_XVAR, HDAPS_PORT_YVAR, &x, &y);
+	if (ret)
+		return ret;
+
+	return sprintf(buf, "(%d,%d)\n", x, y);
+}
+
+static ssize_t hdaps_temp1_show(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	u8 temp;
+	int ret;
+
+	ret = hdaps_readb_one(HDAPS_PORT_TEMP1, &temp);
+	if (ret < 0)
+		return ret;
+
+	return sprintf(buf, "%u\n", temp);
+}
+
+static ssize_t hdaps_temp2_show(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	u8 temp;
+	int ret;
+
+	ret = hdaps_readb_one(HDAPS_PORT_TEMP2, &temp);
+	if (ret < 0)
+		return ret;
+
+	return sprintf(buf, "%u\n", temp);
+}
+
+static ssize_t hdaps_keyboard_activity_show(struct device *dev,
+					    struct device_attribute *attr,
+					    char *buf)
+{
+	return sprintf(buf, "%u\n", KEYBD_ISSET(km_activity));
+}
+
+static ssize_t hdaps_mouse_activity_show(struct device *dev,
+					 struct device_attribute *attr,
+					 char *buf)
+{
+	return sprintf(buf, "%u\n", MOUSE_ISSET(km_activity));
+}
+
+static ssize_t hdaps_calibrate_show(struct device *dev,
+				    struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "(%d,%d)\n", rest_x, rest_y);
+}
+
+static ssize_t hdaps_calibrate_store(struct device *dev,
+				     struct device_attribute *attr,
+				     const char *buf, size_t count)
+{
+	mutex_lock(&hdaps_mtx);
+	hdaps_calibrate();
+	mutex_unlock(&hdaps_mtx);
+
+	return count;
+}
+
+static ssize_t hdaps_invert_show(struct device *dev,
+				 struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "%u\n", hdaps_invert);
+}
+
+static ssize_t hdaps_invert_store(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buf, size_t count)
+{
+	int invert;
+
+	if (sscanf(buf, "%d", &invert) != 1 || (invert != 1 && invert != 0))
+		return -EINVAL;
+
+	hdaps_invert = invert;
+	hdaps_calibrate();
+
+	return count;
+}
+
+static DEVICE_ATTR(position, 0444, hdaps_position_show, NULL);
+static DEVICE_ATTR(variance, 0444, hdaps_variance_show, NULL);
+static DEVICE_ATTR(temp1, 0444, hdaps_temp1_show, NULL);
+static DEVICE_ATTR(temp2, 0444, hdaps_temp2_show, NULL);
+static DEVICE_ATTR(keyboard_activity, 0444, hdaps_keyboard_activity_show, NULL);
+static DEVICE_ATTR(mouse_activity, 0444, hdaps_mouse_activity_show, NULL);
+static DEVICE_ATTR(calibrate, 0644, hdaps_calibrate_show,hdaps_calibrate_store);
+static DEVICE_ATTR(invert, 0644, hdaps_invert_show, hdaps_invert_store);
+
+static struct attribute *hdaps_attributes[] = {
+	&dev_attr_position.attr,
+	&dev_attr_variance.attr,
+	&dev_attr_temp1.attr,
+	&dev_attr_temp2.attr,
+	&dev_attr_keyboard_activity.attr,
+	&dev_attr_mouse_activity.attr,
+	&dev_attr_calibrate.attr,
+	&dev_attr_invert.attr,
+	NULL,
+};
+
+static struct attribute_group hdaps_attribute_group = {
+	.attrs = hdaps_attributes,
+};
+
+
+/* Module stuff */
+
+/* hdaps_dmi_match - found a match.  return one, short-circuiting the hunt. */
+static int __init hdaps_dmi_match(const struct dmi_system_id *id)
+{
+	printk(KERN_INFO "hdaps: %s detected.\n", id->ident);
+	return 1;
+}
+
+/* hdaps_dmi_match_invert - found an inverted match. */
+static int __init hdaps_dmi_match_invert(const struct dmi_system_id *id)
+{
+	hdaps_invert = 1;
+	printk(KERN_INFO "hdaps: inverting axis readings.\n");
+	return hdaps_dmi_match(id);
+}
+
+#define HDAPS_DMI_MATCH_NORMAL(vendor, model) {		\
+	.ident = vendor " " model,			\
+	.callback = hdaps_dmi_match,			\
+	.matches = {					\
+		DMI_MATCH(DMI_BOARD_VENDOR, vendor),	\
+		DMI_MATCH(DMI_PRODUCT_VERSION, model)	\
+	}						\
+}
+
+#define HDAPS_DMI_MATCH_INVERT(vendor, model) {		\
+	.ident = vendor " " model,			\
+	.callback = hdaps_dmi_match_invert,		\
+	.matches = {					\
+		DMI_MATCH(DMI_BOARD_VENDOR, vendor),	\
+		DMI_MATCH(DMI_PRODUCT_VERSION, model)	\
+	}						\
+}
+
+/* Note that HDAPS_DMI_MATCH_NORMAL("ThinkPad T42") would match
+   "ThinkPad T42p", so the order of the entries matters.
+   If your ThinkPad is not recognized, please update to latest
+   BIOS. This is especially the case for some R52 ThinkPads. */
+static struct dmi_system_id __initdata hdaps_whitelist[] = {
+	HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad R50p"),
+	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R50"),
+	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R51"),
+	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R52"),
+	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad R61i"),
+	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad R61"),
+	HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad T41p"),
+	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad T41"),
+	HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad T42p"),
+	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad T42"),
+	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad T43"),
+	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad T60"),
+	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad T61p"),
+	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad T61"),
+	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad X40"),
+	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad X41"),
+	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad X60"),
+	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad X61s"),
+	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad X61"),
+	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad Z60m"),
+	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad Z61m"),
+	HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad Z61p"),
+	{ .ident = NULL }
+};
+
+static int __init hdaps_init(void)
+{
+	struct input_dev *idev;
+	int ret;
+
+	if (!dmi_check_system(hdaps_whitelist)) {
+		printk(KERN_WARNING "hdaps: supported laptop not found!\n");
+		ret = -ENODEV;
+		goto out;
+	}
+
+	if (!request_region(HDAPS_LOW_PORT, HDAPS_NR_PORTS, "hdaps")) {
+		ret = -ENXIO;
+		goto out;
+	}
+
+	ret = platform_driver_register(&hdaps_driver);
+	if (ret)
+		goto out_region;
+
+	pdev = platform_device_register_simple("hdaps", -1, NULL, 0);
+	if (IS_ERR(pdev)) {
+		ret = PTR_ERR(pdev);
+		goto out_driver;
+	}
+
+	ret = sysfs_create_group(&pdev->dev.kobj, &hdaps_attribute_group);
+	if (ret)
+		goto out_device;
+
+	hdaps_idev = input_allocate_polled_device();
+	if (!hdaps_idev) {
+		ret = -ENOMEM;
+		goto out_group;
+	}
+
+	hdaps_idev->poll = hdaps_mousedev_poll;
+	hdaps_idev->poll_interval = HDAPS_POLL_INTERVAL;
+
+	/* initial calibrate for the input device */
+	hdaps_calibrate();
+
+	/* initialize the input class */
+	idev = hdaps_idev->input;
+	idev->name = "hdaps";
+	idev->phys = "isa1600/input0";
+	idev->id.bustype = BUS_ISA;
+	idev->dev.parent = &pdev->dev;
+	idev->evbit[0] = BIT_MASK(EV_ABS);
+	input_set_abs_params(idev, ABS_X,
+			-256, 256, HDAPS_INPUT_FUZZ, HDAPS_INPUT_FLAT);
+	input_set_abs_params(idev, ABS_Y,
+			-256, 256, HDAPS_INPUT_FUZZ, HDAPS_INPUT_FLAT);
+
+	ret = input_register_polled_device(hdaps_idev);
+	if (ret)
+		goto out_idev;
+
+	printk(KERN_INFO "hdaps: driver successfully loaded.\n");
+	return 0;
+
+out_idev:
+	input_free_polled_device(hdaps_idev);
+out_group:
+	sysfs_remove_group(&pdev->dev.kobj, &hdaps_attribute_group);
+out_device:
+	platform_device_unregister(pdev);
+out_driver:
+	platform_driver_unregister(&hdaps_driver);
+out_region:
+	release_region(HDAPS_LOW_PORT, HDAPS_NR_PORTS);
+out:
+	printk(KERN_WARNING "hdaps: driver init failed (ret=%d)!\n", ret);
+	return ret;
+}
+
+static void __exit hdaps_exit(void)
+{
+	input_unregister_polled_device(hdaps_idev);
+	input_free_polled_device(hdaps_idev);
+	sysfs_remove_group(&pdev->dev.kobj, &hdaps_attribute_group);
+	platform_device_unregister(pdev);
+	platform_driver_unregister(&hdaps_driver);
+	release_region(HDAPS_LOW_PORT, HDAPS_NR_PORTS);
+
+	printk(KERN_INFO "hdaps: driver unloaded.\n");
+}
+
+module_init(hdaps_init);
+module_exit(hdaps_exit);
+
+module_param_named(invert, hdaps_invert, bool, 0);
+MODULE_PARM_DESC(invert, "invert data along each axis");
+
+MODULE_AUTHOR("Robert Love");
+MODULE_DESCRIPTION("IBM Hard Drive Active Protection System (HDAPS) driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/hwmon/hwmon-vid.c b/drivers/hwmon/hwmon-vid.c
new file mode 100644
index 0000000..bfc2961
--- /dev/null
+++ b/drivers/hwmon/hwmon-vid.c
@@ -0,0 +1,261 @@
+/*
+ * hwmon-vid.c - VID/VRM/VRD voltage conversions
+ *
+ * Copyright (c) 2004 Rudolf Marek <r.marek@assembler.cz>
+ *
+ * Partly imported from i2c-vid.h of the lm_sensors project
+ * Copyright (c) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
+ * With assistance from Trent Piepho <xyzzy@speakeasy.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/hwmon-vid.h>
+
+/*
+ * Common code for decoding VID pins.
+ *
+ * References:
+ *
+ * For VRM 8.4 to 9.1, "VRM x.y DC-DC Converter Design Guidelines",
+ * available at http://developer.intel.com/.
+ *
+ * For VRD 10.0 and up, "VRD x.y Design Guide",
+ * available at http://developer.intel.com/.
+ *
+ * AMD Athlon 64 and AMD Opteron Processors, AMD Publication 26094,
+ * http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/26094.PDF
+ * Table 74. VID Code Voltages
+ * This corresponds to an arbitrary VRM code of 24 in the functions below.
+ * These CPU models (K8 revision <= E) have 5 VID pins. See also:
+ * Revision Guide for AMD Athlon 64 and AMD Opteron Processors, AMD Publication 25759,
+ * http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/25759.pdf
+ *
+ * AMD NPT Family 0Fh Processors, AMD Publication 32559,
+ * http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/32559.pdf
+ * Table 71. VID Code Voltages
+ * This corresponds to an arbitrary VRM code of 25 in the functions below.
+ * These CPU models (K8 revision >= F) have 6 VID pins. See also:
+ * Revision Guide for AMD NPT Family 0Fh Processors, AMD Publication 33610,
+ * http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/33610.pdf
+ *
+ * The 17 specification is in fact Intel Mobile Voltage Positioning -
+ * (IMVP-II). You can find more information in the datasheet of Max1718
+ * http://www.maxim-ic.com/quick_view2.cfm/qv_pk/2452
+ *
+ * The 13 specification corresponds to the Intel Pentium M series. There
+ * doesn't seem to be any named specification for these. The conversion
+ * tables are detailed directly in the various Pentium M datasheets:
+ * http://www.intel.com/design/intarch/pentiumm/docs_pentiumm.htm
+ *
+ * The 14 specification corresponds to Intel Core series. There
+ * doesn't seem to be any named specification for these. The conversion
+ * tables are detailed directly in the various Pentium Core datasheets:
+ * http://www.intel.com/design/mobile/datashts/309221.htm
+ *
+ * The 110 (VRM 11) specification corresponds to Intel Conroe based series.
+ * http://www.intel.com/design/processor/applnots/313214.htm
+ */
+
+/*
+ * vrm is the VRM/VRD document version multiplied by 10.
+ * val is the 4-bit or more VID code.
+ * Returned value is in mV to avoid floating point in the kernel.
+ * Some VID have some bits in uV scale, this is rounded to mV.
+ */
+int vid_from_reg(int val, u8 vrm)
+{
+	int vid;
+
+	switch(vrm) {
+
+	case 100:               /* VRD 10.0 */
+		/* compute in uV, round to mV */
+		val &= 0x3f;
+		if((val & 0x1f) == 0x1f)
+			return 0;
+		if((val & 0x1f) <= 0x09 || val == 0x0a)
+			vid = 1087500 - (val & 0x1f) * 25000;
+		else
+			vid = 1862500 - (val & 0x1f) * 25000;
+		if(val & 0x20)
+			vid -= 12500;
+		return((vid + 500) / 1000);
+
+	case 110:		/* Intel Conroe */
+				/* compute in uV, round to mV */
+		val &= 0xff;
+		if (val < 0x02 || val > 0xb2)
+			return 0;
+		return((1600000 - (val - 2) * 6250 + 500) / 1000);
+
+	case 24:		/* Athlon64 & Opteron */
+		val &= 0x1f;
+		if (val == 0x1f)
+			return 0;
+				/* fall through */
+	case 25:		/* AMD NPT 0Fh */
+		val &= 0x3f;
+		return (val < 32) ? 1550 - 25 * val
+			: 775 - (25 * (val - 31)) / 2;
+
+	case 91:		/* VRM 9.1 */
+	case 90:		/* VRM 9.0 */
+		val &= 0x1f;
+		return(val == 0x1f ? 0 :
+		                       1850 - val * 25);
+
+	case 85:		/* VRM 8.5 */
+		val &= 0x1f;
+		return((val & 0x10  ? 25 : 0) +
+		       ((val & 0x0f) > 0x04 ? 2050 : 1250) -
+		       ((val & 0x0f) * 50));
+
+	case 84:		/* VRM 8.4 */
+		val &= 0x0f;
+				/* fall through */
+	case 82:		/* VRM 8.2 */
+		val &= 0x1f;
+		return(val == 0x1f ? 0 :
+		       val & 0x10  ? 5100 - (val) * 100 :
+		                     2050 - (val) * 50);
+	case 17:		/* Intel IMVP-II */
+		val &= 0x1f;
+		return(val & 0x10 ? 975 - (val & 0xF) * 25 :
+				    1750 - val * 50);
+	case 13:
+		val &= 0x3f;
+		return(1708 - val * 16);
+	case 14:		/* Intel Core */
+				/* compute in uV, round to mV */
+		val &= 0x7f;
+		return(val > 0x77 ? 0 : (1500000 - (val * 12500) + 500) / 1000);
+	default:		/* report 0 for unknown */
+		if (vrm)
+			printk(KERN_WARNING "hwmon-vid: Requested unsupported "
+			       "VRM version (%u)\n", (unsigned int)vrm);
+		return 0;
+	}
+}
+
+
+/*
+ * After this point is the code to automatically determine which
+ * VRM/VRD specification should be used depending on the CPU.
+ */
+
+struct vrm_model {
+	u8 vendor;
+	u8 eff_family;
+	u8 eff_model;
+	u8 eff_stepping;
+	u8 vrm_type;
+};
+
+#define ANY 0xFF
+
+#ifdef CONFIG_X86
+
+/*
+ * The stepping parameter is highest acceptable stepping for current line.
+ * The model match must be exact for 4-bit values. For model values 0x10
+ * and above (extended model), all models below the parameter will match.
+ */
+
+static struct vrm_model vrm_models[] = {
+	{X86_VENDOR_AMD, 0x6, ANY, ANY, 90},		/* Athlon Duron etc */
+	{X86_VENDOR_AMD, 0xF, 0x3F, ANY, 24},		/* Athlon 64, Opteron */
+	{X86_VENDOR_AMD, 0xF, ANY, ANY, 25},		/* NPT family 0Fh */
+	{X86_VENDOR_AMD, 0x10, ANY, ANY, 25},		/* NPT family 10h */
+	{X86_VENDOR_INTEL, 0x6, 0x9, ANY, 13},		/* Pentium M (130 nm) */
+	{X86_VENDOR_INTEL, 0x6, 0xB, ANY, 85},		/* Tualatin */
+	{X86_VENDOR_INTEL, 0x6, 0xD, ANY, 13},		/* Pentium M (90 nm) */
+	{X86_VENDOR_INTEL, 0x6, 0xE, ANY, 14},		/* Intel Core (65 nm) */
+	{X86_VENDOR_INTEL, 0x6, 0xF, ANY, 110},		/* Intel Conroe */
+	{X86_VENDOR_INTEL, 0x6, ANY, ANY, 82},		/* any P6 */
+	{X86_VENDOR_INTEL, 0xF, 0x0, ANY, 90},		/* P4 */
+	{X86_VENDOR_INTEL, 0xF, 0x1, ANY, 90},		/* P4 Willamette */
+	{X86_VENDOR_INTEL, 0xF, 0x2, ANY, 90},		/* P4 Northwood */
+	{X86_VENDOR_INTEL, 0xF, ANY, ANY, 100},		/* Prescott and above assume VRD 10 */
+	{X86_VENDOR_CENTAUR, 0x6, 0x7, ANY, 85},	/* Eden ESP/Ezra */
+	{X86_VENDOR_CENTAUR, 0x6, 0x8, 0x7, 85},	/* Ezra T */
+	{X86_VENDOR_CENTAUR, 0x6, 0x9, 0x7, 85},	/* Nemiah */
+	{X86_VENDOR_CENTAUR, 0x6, 0x9, ANY, 17},	/* C3-M, Eden-N */
+	{X86_VENDOR_CENTAUR, 0x6, 0xA, 0x7, 0},		/* No information */
+	{X86_VENDOR_CENTAUR, 0x6, 0xA, ANY, 13},	/* C7, Esther */
+	{X86_VENDOR_UNKNOWN, ANY, ANY, ANY, 0}		/* stop here */
+};
+
+static u8 find_vrm(u8 eff_family, u8 eff_model, u8 eff_stepping, u8 vendor)
+{
+	int i = 0;
+
+	while (vrm_models[i].vendor!=X86_VENDOR_UNKNOWN) {
+		if (vrm_models[i].vendor==vendor)
+			if ((vrm_models[i].eff_family==eff_family)
+			 && ((vrm_models[i].eff_model==eff_model) ||
+			     (vrm_models[i].eff_model >= 0x10 &&
+			      eff_model <= vrm_models[i].eff_model) ||
+			     (vrm_models[i].eff_model==ANY)) &&
+			     (eff_stepping <= vrm_models[i].eff_stepping))
+				return vrm_models[i].vrm_type;
+		i++;
+	}
+
+	return 0;
+}
+
+u8 vid_which_vrm(void)
+{
+	struct cpuinfo_x86 *c = &cpu_data(0);
+	u32 eax;
+	u8 eff_family, eff_model, eff_stepping, vrm_ret;
+
+	if (c->x86 < 6)		/* Any CPU with family lower than 6 */
+		return 0;	/* doesn't have VID and/or CPUID */
+
+	eax = cpuid_eax(1);
+	eff_family = ((eax & 0x00000F00)>>8);
+	eff_model  = ((eax & 0x000000F0)>>4);
+	eff_stepping = eax & 0xF;
+	if (eff_family == 0xF) {	/* use extended model & family */
+		eff_family += ((eax & 0x00F00000)>>20);
+		eff_model += ((eax & 0x000F0000)>>16)<<4;
+	}
+	vrm_ret = find_vrm(eff_family, eff_model, eff_stepping, c->x86_vendor);
+	if (vrm_ret == 0)
+		printk(KERN_INFO "hwmon-vid: Unknown VRM version of your "
+		       "x86 CPU\n");
+	return vrm_ret;
+}
+
+/* and now for something completely different for the non-x86 world */
+#else
+u8 vid_which_vrm(void)
+{
+	printk(KERN_INFO "hwmon-vid: Unknown VRM version of your CPU\n");
+	return 0;
+}
+#endif
+
+EXPORT_SYMBOL(vid_from_reg);
+EXPORT_SYMBOL(vid_which_vrm);
+
+MODULE_AUTHOR("Rudolf Marek <r.marek@assembler.cz>");
+
+MODULE_DESCRIPTION("hwmon-vid driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c
new file mode 100644
index 0000000..076a59c
--- /dev/null
+++ b/drivers/hwmon/hwmon.c
@@ -0,0 +1,113 @@
+/*
+    hwmon.c - part of lm_sensors, Linux kernel modules for hardware monitoring
+
+    This file defines the sysfs class "hwmon", for use by sensors drivers.
+
+    Copyright (C) 2005 Mark M. Hoffman <mhoffman@lightlink.com>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; version 2 of the License.
+*/
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/kdev_t.h>
+#include <linux/idr.h>
+#include <linux/hwmon.h>
+#include <linux/gfp.h>
+#include <linux/spinlock.h>
+
+#define HWMON_ID_PREFIX "hwmon"
+#define HWMON_ID_FORMAT HWMON_ID_PREFIX "%d"
+
+static struct class *hwmon_class;
+
+static DEFINE_IDR(hwmon_idr);
+static DEFINE_SPINLOCK(idr_lock);
+
+/**
+ * hwmon_device_register - register w/ hwmon
+ * @dev: the device to register
+ *
+ * hwmon_device_unregister() must be called when the device is no
+ * longer needed.
+ *
+ * Returns the pointer to the new device.
+ */
+struct device *hwmon_device_register(struct device *dev)
+{
+	struct device *hwdev;
+	int id, err;
+
+again:
+	if (unlikely(idr_pre_get(&hwmon_idr, GFP_KERNEL) == 0))
+		return ERR_PTR(-ENOMEM);
+
+	spin_lock(&idr_lock);
+	err = idr_get_new(&hwmon_idr, NULL, &id);
+	spin_unlock(&idr_lock);
+
+	if (unlikely(err == -EAGAIN))
+		goto again;
+	else if (unlikely(err))
+		return ERR_PTR(err);
+
+	id = id & MAX_ID_MASK;
+	hwdev = device_create(hwmon_class, dev, MKDEV(0, 0), NULL,
+			      HWMON_ID_FORMAT, id);
+
+	if (IS_ERR(hwdev)) {
+		spin_lock(&idr_lock);
+		idr_remove(&hwmon_idr, id);
+		spin_unlock(&idr_lock);
+	}
+
+	return hwdev;
+}
+
+/**
+ * hwmon_device_unregister - removes the previously registered class device
+ *
+ * @dev: the class device to destroy
+ */
+void hwmon_device_unregister(struct device *dev)
+{
+	int id;
+
+	if (likely(sscanf(dev->bus_id, HWMON_ID_FORMAT, &id) == 1)) {
+		device_unregister(dev);
+		spin_lock(&idr_lock);
+		idr_remove(&hwmon_idr, id);
+		spin_unlock(&idr_lock);
+	} else
+		dev_dbg(dev->parent,
+			"hwmon_device_unregister() failed: bad class ID!\n");
+}
+
+static int __init hwmon_init(void)
+{
+	hwmon_class = class_create(THIS_MODULE, "hwmon");
+	if (IS_ERR(hwmon_class)) {
+		printk(KERN_ERR "hwmon.c: couldn't create sysfs class\n");
+		return PTR_ERR(hwmon_class);
+	}
+	return 0;
+}
+
+static void __exit hwmon_exit(void)
+{
+	class_destroy(hwmon_class);
+}
+
+subsys_initcall(hwmon_init);
+module_exit(hwmon_exit);
+
+EXPORT_SYMBOL_GPL(hwmon_device_register);
+EXPORT_SYMBOL_GPL(hwmon_device_unregister);
+
+MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>");
+MODULE_DESCRIPTION("hardware monitoring sysfs/class support");
+MODULE_LICENSE("GPL");
+
diff --git a/drivers/hwmon/i5k_amb.c b/drivers/hwmon/i5k_amb.c
new file mode 100644
index 0000000..2ede938
--- /dev/null
+++ b/drivers/hwmon/i5k_amb.c
@@ -0,0 +1,607 @@
+/*
+ * A hwmon driver for the Intel 5000 series chipset FB-DIMM AMB
+ * temperature sensors
+ * Copyright (C) 2007 IBM
+ *
+ * Author: Darrick J. Wong <djwong@us.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/module.h>
+#include <linux/jiffies.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/delay.h>
+#include <linux/log2.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+
+#define DRVNAME "i5k_amb"
+
+#define I5K_REG_AMB_BASE_ADDR		0x48
+#define I5K_REG_AMB_LEN_ADDR		0x50
+#define I5K_REG_CHAN0_PRESENCE_ADDR	0x64
+#define I5K_REG_CHAN1_PRESENCE_ADDR	0x66
+
+#define AMB_REG_TEMP_MIN_ADDR		0x80
+#define AMB_REG_TEMP_MID_ADDR		0x81
+#define AMB_REG_TEMP_MAX_ADDR		0x82
+#define AMB_REG_TEMP_STATUS_ADDR	0x84
+#define AMB_REG_TEMP_ADDR		0x85
+
+#define AMB_CONFIG_SIZE			2048
+#define AMB_FUNC_3_OFFSET		768
+
+static unsigned long amb_reg_temp_status(unsigned int amb)
+{
+	return AMB_FUNC_3_OFFSET + AMB_REG_TEMP_STATUS_ADDR +
+	       AMB_CONFIG_SIZE * amb;
+}
+
+static unsigned long amb_reg_temp_min(unsigned int amb)
+{
+	return AMB_FUNC_3_OFFSET + AMB_REG_TEMP_MIN_ADDR +
+	       AMB_CONFIG_SIZE * amb;
+}
+
+static unsigned long amb_reg_temp_mid(unsigned int amb)
+{
+	return AMB_FUNC_3_OFFSET + AMB_REG_TEMP_MID_ADDR +
+	       AMB_CONFIG_SIZE * amb;
+}
+
+static unsigned long amb_reg_temp_max(unsigned int amb)
+{
+	return AMB_FUNC_3_OFFSET + AMB_REG_TEMP_MAX_ADDR +
+	       AMB_CONFIG_SIZE * amb;
+}
+
+static unsigned long amb_reg_temp(unsigned int amb)
+{
+	return AMB_FUNC_3_OFFSET + AMB_REG_TEMP_ADDR +
+	       AMB_CONFIG_SIZE * amb;
+}
+
+#define MAX_MEM_CHANNELS		4
+#define MAX_AMBS_PER_CHANNEL		16
+#define MAX_AMBS			(MAX_MEM_CHANNELS * \
+					 MAX_AMBS_PER_CHANNEL)
+#define CHANNEL_SHIFT			4
+#define DIMM_MASK			0xF
+/*
+ * Ugly hack: For some reason the highest bit is set if there
+ * are _any_ DIMMs in the channel.  Attempting to read from
+ * this "high-order" AMB results in a memory bus error, so
+ * for now we'll just ignore that top bit, even though that
+ * might prevent us from seeing the 16th DIMM in the channel.
+ */
+#define REAL_MAX_AMBS_PER_CHANNEL	15
+#define KNOBS_PER_AMB			6
+
+static unsigned long amb_num_from_reg(unsigned int byte_num, unsigned int bit)
+{
+	return byte_num * MAX_AMBS_PER_CHANNEL + bit;
+}
+
+#define AMB_SYSFS_NAME_LEN		16
+struct i5k_device_attribute {
+	struct sensor_device_attribute s_attr;
+	char name[AMB_SYSFS_NAME_LEN];
+};
+
+struct i5k_amb_data {
+	struct device *hwmon_dev;
+
+	unsigned long amb_base;
+	unsigned long amb_len;
+	u16 amb_present[MAX_MEM_CHANNELS];
+	void __iomem *amb_mmio;
+	struct i5k_device_attribute *attrs;
+	unsigned int num_attrs;
+	unsigned long chipset_id;
+};
+
+static ssize_t show_name(struct device *dev, struct device_attribute *devattr,
+			 char *buf)
+{
+	return sprintf(buf, "%s\n", DRVNAME);
+}
+
+
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+
+static struct platform_device *amb_pdev;
+
+static u8 amb_read_byte(struct i5k_amb_data *data, unsigned long offset)
+{
+	return ioread8(data->amb_mmio + offset);
+}
+
+static void amb_write_byte(struct i5k_amb_data *data, unsigned long offset,
+			   u8 val)
+{
+	iowrite8(val, data->amb_mmio + offset);
+}
+
+static ssize_t show_amb_alarm(struct device *dev,
+			     struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i5k_amb_data *data = dev_get_drvdata(dev);
+
+	if (!(amb_read_byte(data, amb_reg_temp_status(attr->index)) & 0x20) &&
+	     (amb_read_byte(data, amb_reg_temp_status(attr->index)) & 0x8))
+		return sprintf(buf, "1\n");
+	else
+		return sprintf(buf, "0\n");
+}
+
+static ssize_t store_amb_min(struct device *dev,
+			     struct device_attribute *devattr,
+			     const char *buf,
+			     size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i5k_amb_data *data = dev_get_drvdata(dev);
+	unsigned long temp = simple_strtoul(buf, NULL, 10) / 500;
+
+	if (temp > 255)
+		temp = 255;
+
+	amb_write_byte(data, amb_reg_temp_min(attr->index), temp);
+	return count;
+}
+
+static ssize_t store_amb_mid(struct device *dev,
+			     struct device_attribute *devattr,
+			     const char *buf,
+			     size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i5k_amb_data *data = dev_get_drvdata(dev);
+	unsigned long temp = simple_strtoul(buf, NULL, 10) / 500;
+
+	if (temp > 255)
+		temp = 255;
+
+	amb_write_byte(data, amb_reg_temp_mid(attr->index), temp);
+	return count;
+}
+
+static ssize_t store_amb_max(struct device *dev,
+			     struct device_attribute *devattr,
+			     const char *buf,
+			     size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i5k_amb_data *data = dev_get_drvdata(dev);
+	unsigned long temp = simple_strtoul(buf, NULL, 10) / 500;
+
+	if (temp > 255)
+		temp = 255;
+
+	amb_write_byte(data, amb_reg_temp_max(attr->index), temp);
+	return count;
+}
+
+static ssize_t show_amb_min(struct device *dev,
+			     struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i5k_amb_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%d\n",
+		500 * amb_read_byte(data, amb_reg_temp_min(attr->index)));
+}
+
+static ssize_t show_amb_mid(struct device *dev,
+			     struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i5k_amb_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%d\n",
+		500 * amb_read_byte(data, amb_reg_temp_mid(attr->index)));
+}
+
+static ssize_t show_amb_max(struct device *dev,
+			     struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i5k_amb_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%d\n",
+		500 * amb_read_byte(data, amb_reg_temp_max(attr->index)));
+}
+
+static ssize_t show_amb_temp(struct device *dev,
+			     struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i5k_amb_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%d\n",
+		500 * amb_read_byte(data, amb_reg_temp(attr->index)));
+}
+
+static ssize_t show_label(struct device *dev,
+			  struct device_attribute *devattr,
+			  char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+
+	return sprintf(buf, "Ch. %d DIMM %d\n", attr->index >> CHANNEL_SHIFT,
+		       attr->index & DIMM_MASK);
+}
+
+static int __devinit i5k_amb_hwmon_init(struct platform_device *pdev)
+{
+	int i, j, k, d = 0;
+	u16 c;
+	int res = 0;
+	int num_ambs = 0;
+	struct i5k_amb_data *data = platform_get_drvdata(pdev);
+
+	/* Count the number of AMBs found */
+	/* ignore the high-order bit, see "Ugly hack" comment above */
+	for (i = 0; i < MAX_MEM_CHANNELS; i++)
+		num_ambs += hweight16(data->amb_present[i] & 0x7fff);
+
+	/* Set up sysfs stuff */
+	data->attrs = kzalloc(sizeof(*data->attrs) * num_ambs * KNOBS_PER_AMB,
+				GFP_KERNEL);
+	if (!data->attrs)
+		return -ENOMEM;
+	data->num_attrs = 0;
+
+	for (i = 0; i < MAX_MEM_CHANNELS; i++) {
+		c = data->amb_present[i];
+		for (j = 0; j < REAL_MAX_AMBS_PER_CHANNEL; j++, c >>= 1) {
+			struct i5k_device_attribute *iattr;
+
+			k = amb_num_from_reg(i, j);
+			if (!(c & 0x1))
+				continue;
+			d++;
+
+			/* sysfs label */
+			iattr = data->attrs + data->num_attrs;
+			snprintf(iattr->name, AMB_SYSFS_NAME_LEN,
+				 "temp%d_label", d);
+			iattr->s_attr.dev_attr.attr.name = iattr->name;
+			iattr->s_attr.dev_attr.attr.mode = S_IRUGO;
+			iattr->s_attr.dev_attr.show = show_label;
+			iattr->s_attr.index = k;
+			res = device_create_file(&pdev->dev,
+						 &iattr->s_attr.dev_attr);
+			if (res)
+				goto exit_remove;
+			data->num_attrs++;
+
+			/* Temperature sysfs knob */
+			iattr = data->attrs + data->num_attrs;
+			snprintf(iattr->name, AMB_SYSFS_NAME_LEN,
+				 "temp%d_input", d);
+			iattr->s_attr.dev_attr.attr.name = iattr->name;
+			iattr->s_attr.dev_attr.attr.mode = S_IRUGO;
+			iattr->s_attr.dev_attr.show = show_amb_temp;
+			iattr->s_attr.index = k;
+			res = device_create_file(&pdev->dev,
+						 &iattr->s_attr.dev_attr);
+			if (res)
+				goto exit_remove;
+			data->num_attrs++;
+
+			/* Temperature min sysfs knob */
+			iattr = data->attrs + data->num_attrs;
+			snprintf(iattr->name, AMB_SYSFS_NAME_LEN,
+				 "temp%d_min", d);
+			iattr->s_attr.dev_attr.attr.name = iattr->name;
+			iattr->s_attr.dev_attr.attr.mode = S_IWUSR | S_IRUGO;
+			iattr->s_attr.dev_attr.show = show_amb_min;
+			iattr->s_attr.dev_attr.store = store_amb_min;
+			iattr->s_attr.index = k;
+			res = device_create_file(&pdev->dev,
+						 &iattr->s_attr.dev_attr);
+			if (res)
+				goto exit_remove;
+			data->num_attrs++;
+
+			/* Temperature mid sysfs knob */
+			iattr = data->attrs + data->num_attrs;
+			snprintf(iattr->name, AMB_SYSFS_NAME_LEN,
+				 "temp%d_mid", d);
+			iattr->s_attr.dev_attr.attr.name = iattr->name;
+			iattr->s_attr.dev_attr.attr.mode = S_IWUSR | S_IRUGO;
+			iattr->s_attr.dev_attr.show = show_amb_mid;
+			iattr->s_attr.dev_attr.store = store_amb_mid;
+			iattr->s_attr.index = k;
+			res = device_create_file(&pdev->dev,
+						 &iattr->s_attr.dev_attr);
+			if (res)
+				goto exit_remove;
+			data->num_attrs++;
+
+			/* Temperature max sysfs knob */
+			iattr = data->attrs + data->num_attrs;
+			snprintf(iattr->name, AMB_SYSFS_NAME_LEN,
+				 "temp%d_max", d);
+			iattr->s_attr.dev_attr.attr.name = iattr->name;
+			iattr->s_attr.dev_attr.attr.mode = S_IWUSR | S_IRUGO;
+			iattr->s_attr.dev_attr.show = show_amb_max;
+			iattr->s_attr.dev_attr.store = store_amb_max;
+			iattr->s_attr.index = k;
+			res = device_create_file(&pdev->dev,
+						 &iattr->s_attr.dev_attr);
+			if (res)
+				goto exit_remove;
+			data->num_attrs++;
+
+			/* Temperature alarm sysfs knob */
+			iattr = data->attrs + data->num_attrs;
+			snprintf(iattr->name, AMB_SYSFS_NAME_LEN,
+				 "temp%d_alarm", d);
+			iattr->s_attr.dev_attr.attr.name = iattr->name;
+			iattr->s_attr.dev_attr.attr.mode = S_IRUGO;
+			iattr->s_attr.dev_attr.show = show_amb_alarm;
+			iattr->s_attr.index = k;
+			res = device_create_file(&pdev->dev,
+						 &iattr->s_attr.dev_attr);
+			if (res)
+				goto exit_remove;
+			data->num_attrs++;
+		}
+	}
+
+	res = device_create_file(&pdev->dev, &dev_attr_name);
+	if (res)
+		goto exit_remove;
+
+	data->hwmon_dev = hwmon_device_register(&pdev->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		res = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	return res;
+
+exit_remove:
+	device_remove_file(&pdev->dev, &dev_attr_name);
+	for (i = 0; i < data->num_attrs; i++)
+		device_remove_file(&pdev->dev, &data->attrs[i].s_attr.dev_attr);
+	kfree(data->attrs);
+
+	return res;
+}
+
+static int __devinit i5k_amb_add(void)
+{
+	int res = -ENODEV;
+
+	/* only ever going to be one of these */
+	amb_pdev = platform_device_alloc(DRVNAME, 0);
+	if (!amb_pdev)
+		return -ENOMEM;
+
+	res = platform_device_add(amb_pdev);
+	if (res)
+		goto err;
+	return 0;
+
+err:
+	platform_device_put(amb_pdev);
+	return res;
+}
+
+static int __devinit i5k_find_amb_registers(struct i5k_amb_data *data,
+					    unsigned long devid)
+{
+	struct pci_dev *pcidev;
+	u32 val32;
+	int res = -ENODEV;
+
+	/* Find AMB register memory space */
+	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
+				devid,
+				NULL);
+	if (!pcidev)
+		return -ENODEV;
+
+	if (pci_read_config_dword(pcidev, I5K_REG_AMB_BASE_ADDR, &val32))
+		goto out;
+	data->amb_base = val32;
+
+	if (pci_read_config_dword(pcidev, I5K_REG_AMB_LEN_ADDR, &val32))
+		goto out;
+	data->amb_len = val32;
+
+	/* Is it big enough? */
+	if (data->amb_len < AMB_CONFIG_SIZE * MAX_AMBS) {
+		dev_err(&pcidev->dev, "AMB region too small!\n");
+		goto out;
+	}
+
+	data->chipset_id = devid;
+
+	res = 0;
+out:
+	pci_dev_put(pcidev);
+	return res;
+}
+
+static int __devinit i5k_channel_probe(u16 *amb_present, unsigned long dev_id)
+{
+	struct pci_dev *pcidev;
+	u16 val16;
+	int res = -ENODEV;
+
+	/* Copy the DIMM presence map for these two channels */
+	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL, dev_id, NULL);
+	if (!pcidev)
+		return -ENODEV;
+
+	if (pci_read_config_word(pcidev, I5K_REG_CHAN0_PRESENCE_ADDR, &val16))
+		goto out;
+	amb_present[0] = val16;
+
+	if (pci_read_config_word(pcidev, I5K_REG_CHAN1_PRESENCE_ADDR, &val16))
+		goto out;
+	amb_present[1] = val16;
+
+	res = 0;
+
+out:
+	pci_dev_put(pcidev);
+	return res;
+}
+
+static unsigned long i5k_channel_pci_id(struct i5k_amb_data *data,
+					unsigned long channel)
+{
+	switch (data->chipset_id) {
+	case PCI_DEVICE_ID_INTEL_5000_ERR:
+		return PCI_DEVICE_ID_INTEL_5000_FBD0 + channel;
+	case PCI_DEVICE_ID_INTEL_5400_ERR:
+		return PCI_DEVICE_ID_INTEL_5400_FBD0 + channel;
+	default:
+		BUG();
+	}
+}
+
+static unsigned long chipset_ids[] = {
+	PCI_DEVICE_ID_INTEL_5000_ERR,
+	PCI_DEVICE_ID_INTEL_5400_ERR,
+	0
+};
+
+static int __devinit i5k_amb_probe(struct platform_device *pdev)
+{
+	struct i5k_amb_data *data;
+	struct resource *reso;
+	int i;
+	int res = -ENODEV;
+
+	data = kzalloc(sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	/* Figure out where the AMB registers live */
+	i = 0;
+	do {
+		res = i5k_find_amb_registers(data, chipset_ids[i]);
+		i++;
+	} while (res && chipset_ids[i]);
+
+	if (res)
+		goto err;
+
+	/* Copy the DIMM presence map for the first two channels */
+	res = i5k_channel_probe(&data->amb_present[0],
+				i5k_channel_pci_id(data, 0));
+	if (res)
+		goto err;
+
+	/* Copy the DIMM presence map for the optional second two channels */
+	i5k_channel_probe(&data->amb_present[2],
+			  i5k_channel_pci_id(data, 1));
+
+	/* Set up resource regions */
+	reso = request_mem_region(data->amb_base, data->amb_len, DRVNAME);
+	if (!reso) {
+		res = -EBUSY;
+		goto err;
+	}
+
+	data->amb_mmio = ioremap_nocache(data->amb_base, data->amb_len);
+	if (!data->amb_mmio) {
+		res = -EBUSY;
+		goto err_map_failed;
+	}
+
+	platform_set_drvdata(pdev, data);
+
+	res = i5k_amb_hwmon_init(pdev);
+	if (res)
+		goto err_init_failed;
+
+	return res;
+
+err_init_failed:
+	iounmap(data->amb_mmio);
+	platform_set_drvdata(pdev, NULL);
+err_map_failed:
+	release_mem_region(data->amb_base, data->amb_len);
+err:
+	kfree(data);
+	return res;
+}
+
+static int __devexit i5k_amb_remove(struct platform_device *pdev)
+{
+	int i;
+	struct i5k_amb_data *data = platform_get_drvdata(pdev);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	device_remove_file(&pdev->dev, &dev_attr_name);
+	for (i = 0; i < data->num_attrs; i++)
+		device_remove_file(&pdev->dev, &data->attrs[i].s_attr.dev_attr);
+	kfree(data->attrs);
+	iounmap(data->amb_mmio);
+	release_mem_region(data->amb_base, data->amb_len);
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+	return 0;
+}
+
+static struct platform_driver i5k_amb_driver = {
+	.driver = {
+		.owner = THIS_MODULE,
+		.name = DRVNAME,
+	},
+	.probe = i5k_amb_probe,
+	.remove = __devexit_p(i5k_amb_remove),
+};
+
+static int __init i5k_amb_init(void)
+{
+	int res;
+
+	res = platform_driver_register(&i5k_amb_driver);
+	if (res)
+		return res;
+
+	res = i5k_amb_add();
+	if (res)
+		platform_driver_unregister(&i5k_amb_driver);
+
+	return res;
+}
+
+static void __exit i5k_amb_exit(void)
+{
+	platform_device_unregister(amb_pdev);
+	platform_driver_unregister(&i5k_amb_driver);
+}
+
+MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>");
+MODULE_DESCRIPTION("Intel 5000 chipset FB-DIMM AMB temperature sensor");
+MODULE_LICENSE("GPL");
+
+module_init(i5k_amb_init);
+module_exit(i5k_amb_exit);
diff --git a/drivers/hwmon/ibmaem.c b/drivers/hwmon/ibmaem.c
new file mode 100644
index 0000000..fe74609
--- /dev/null
+++ b/drivers/hwmon/ibmaem.c
@@ -0,0 +1,1129 @@
+/*
+ * A hwmon driver for the IBM System Director Active Energy Manager (AEM)
+ * temperature/power/energy sensors and capping functionality.
+ * Copyright (C) 2008 IBM
+ *
+ * Author: Darrick J. Wong <djwong@us.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/ipmi.h>
+#include <linux/module.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/jiffies.h>
+#include <linux/mutex.h>
+#include <linux/kdev_t.h>
+#include <linux/spinlock.h>
+#include <linux/idr.h>
+#include <linux/sched.h>
+#include <linux/platform_device.h>
+#include <linux/math64.h>
+#include <linux/time.h>
+
+#define REFRESH_INTERVAL	(HZ)
+#define IPMI_TIMEOUT		(30 * HZ)
+#define DRVNAME			"aem"
+
+#define AEM_NETFN		0x2E
+
+#define AEM_FIND_FW_CMD		0x80
+#define AEM_ELEMENT_CMD		0x81
+#define AEM_FW_INSTANCE_CMD	0x82
+
+#define AEM_READ_ELEMENT_CFG	0x80
+#define AEM_READ_BUFFER		0x81
+#define AEM_READ_REGISTER	0x82
+#define AEM_WRITE_REGISTER	0x83
+#define AEM_SET_REG_MASK	0x84
+#define AEM_CLEAR_REG_MASK	0x85
+#define AEM_READ_ELEMENT_CFG2	0x86
+
+#define AEM_CONTROL_ELEMENT	0
+#define AEM_ENERGY_ELEMENT	1
+#define AEM_CLOCK_ELEMENT	4
+#define AEM_POWER_CAP_ELEMENT	7
+#define AEM_EXHAUST_ELEMENT	9
+#define AEM_POWER_ELEMENT	10
+
+#define AEM_MODULE_TYPE_ID	0x0001
+
+#define AEM2_NUM_ENERGY_REGS	2
+#define AEM2_NUM_PCAP_REGS	6
+#define AEM2_NUM_TEMP_REGS	2
+#define AEM2_NUM_SENSORS	14
+
+#define AEM1_NUM_ENERGY_REGS	1
+#define AEM1_NUM_SENSORS	3
+
+/* AEM 2.x has more energy registers */
+#define AEM_NUM_ENERGY_REGS	AEM2_NUM_ENERGY_REGS
+/* AEM 2.x needs more sensor files */
+#define AEM_NUM_SENSORS		AEM2_NUM_SENSORS
+
+#define POWER_CAP		0
+#define POWER_CAP_MAX_HOTPLUG	1
+#define POWER_CAP_MAX		2
+#define	POWER_CAP_MIN_WARNING	3
+#define POWER_CAP_MIN		4
+#define	POWER_AUX		5
+
+#define AEM_DEFAULT_POWER_INTERVAL 1000
+#define AEM_MIN_POWER_INTERVAL	200
+#define UJ_PER_MJ		1000L
+
+static DEFINE_IDR(aem_idr);
+static DEFINE_SPINLOCK(aem_idr_lock);
+
+static struct platform_driver aem_driver = {
+	.driver = {
+		.name = DRVNAME,
+		.bus = &platform_bus_type,
+	}
+};
+
+struct aem_ipmi_data {
+	struct completion	read_complete;
+	struct ipmi_addr	address;
+	ipmi_user_t		user;
+	int			interface;
+
+	struct kernel_ipmi_msg	tx_message;
+	long			tx_msgid;
+
+	void			*rx_msg_data;
+	unsigned short		rx_msg_len;
+	unsigned char		rx_result;
+	int			rx_recv_type;
+
+	struct device		*bmc_device;
+};
+
+struct aem_ro_sensor_template {
+	char *label;
+	ssize_t (*show)(struct device *dev,
+			struct device_attribute *devattr,
+			char *buf);
+	int index;
+};
+
+struct aem_rw_sensor_template {
+	char *label;
+	ssize_t (*show)(struct device *dev,
+			struct device_attribute *devattr,
+			char *buf);
+	ssize_t (*set)(struct device *dev,
+		       struct device_attribute *devattr,
+		       const char *buf, size_t count);
+	int index;
+};
+
+struct aem_data {
+	struct list_head	list;
+
+	struct device		*hwmon_dev;
+	struct platform_device	*pdev;
+	struct mutex		lock;
+	char			valid;
+	unsigned long		last_updated;	/* In jiffies */
+	u8			ver_major;
+	u8			ver_minor;
+	u8			module_handle;
+	int			id;
+	struct aem_ipmi_data	ipmi;
+
+	/* Function to update sensors */
+	void (*update)(struct aem_data *data);
+
+	/*
+	 * AEM 1.x sensors:
+	 * Available sensors:
+	 * Energy meter
+	 * Power meter
+	 *
+	 * AEM 2.x sensors:
+	 * Two energy meters
+	 * Two power meters
+	 * Two temperature sensors
+	 * Six power cap registers
+	 */
+
+	/* sysfs attrs */
+	struct sensor_device_attribute	sensors[AEM_NUM_SENSORS];
+
+	/* energy use in mJ */
+	u64			energy[AEM_NUM_ENERGY_REGS];
+
+	/* power sampling interval in ms */
+	unsigned long		power_period[AEM_NUM_ENERGY_REGS];
+
+	/* Everything past here is for AEM2 only */
+
+	/* power caps in dW */
+	u16			pcap[AEM2_NUM_PCAP_REGS];
+
+	/* exhaust temperature in C */
+	u8			temp[AEM2_NUM_TEMP_REGS];
+};
+
+/* Data structures returned by the AEM firmware */
+struct aem_iana_id {
+	u8			bytes[3];
+};
+static struct aem_iana_id system_x_id = {
+	.bytes = {0x4D, 0x4F, 0x00}
+};
+
+/* These are used to find AEM1 instances */
+struct aem_find_firmware_req {
+	struct aem_iana_id	id;
+	u8			rsvd;
+	__be16			index;
+	__be16			module_type_id;
+} __packed;
+
+struct aem_find_firmware_resp {
+	struct aem_iana_id	id;
+	u8			num_instances;
+} __packed;
+
+/* These are used to find AEM2 instances */
+struct aem_find_instance_req {
+	struct aem_iana_id	id;
+	u8			instance_number;
+	__be16			module_type_id;
+} __packed;
+
+struct aem_find_instance_resp {
+	struct aem_iana_id	id;
+	u8			num_instances;
+	u8			major;
+	u8			minor;
+	u8			module_handle;
+	u16			record_id;
+} __packed;
+
+/* These are used to query sensors */
+struct aem_read_sensor_req {
+	struct aem_iana_id	id;
+	u8			module_handle;
+	u8			element;
+	u8			subcommand;
+	u8			reg;
+	u8			rx_buf_size;
+} __packed;
+
+struct aem_read_sensor_resp {
+	struct aem_iana_id	id;
+	u8			bytes[0];
+} __packed;
+
+/* Data structures to talk to the IPMI layer */
+struct aem_driver_data {
+	struct list_head	aem_devices;
+	struct ipmi_smi_watcher	bmc_events;
+	struct ipmi_user_hndl	ipmi_hndlrs;
+};
+
+static void aem_register_bmc(int iface, struct device *dev);
+static void aem_bmc_gone(int iface);
+static void aem_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data);
+
+static void aem_remove_sensors(struct aem_data *data);
+static int aem_init_aem1(struct aem_ipmi_data *probe);
+static int aem_init_aem2(struct aem_ipmi_data *probe);
+static int aem1_find_sensors(struct aem_data *data);
+static int aem2_find_sensors(struct aem_data *data);
+static void update_aem1_sensors(struct aem_data *data);
+static void update_aem2_sensors(struct aem_data *data);
+
+static struct aem_driver_data driver_data = {
+	.aem_devices = LIST_HEAD_INIT(driver_data.aem_devices),
+	.bmc_events = {
+		.owner = THIS_MODULE,
+		.new_smi = aem_register_bmc,
+		.smi_gone = aem_bmc_gone,
+	},
+	.ipmi_hndlrs = {
+		.ipmi_recv_hndl = aem_msg_handler,
+	},
+};
+
+/* Functions to talk to the IPMI layer */
+
+/* Initialize IPMI address, message buffers and user data */
+static int aem_init_ipmi_data(struct aem_ipmi_data *data, int iface,
+			      struct device *bmc)
+{
+	int err;
+
+	init_completion(&data->read_complete);
+	data->bmc_device = bmc;
+
+	/* Initialize IPMI address */
+	data->address.addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE;
+	data->address.channel = IPMI_BMC_CHANNEL;
+	data->address.data[0] = 0;
+	data->interface = iface;
+
+	/* Initialize message buffers */
+	data->tx_msgid = 0;
+	data->tx_message.netfn = AEM_NETFN;
+
+	/* Create IPMI messaging interface user */
+	err = ipmi_create_user(data->interface, &driver_data.ipmi_hndlrs,
+			       data, &data->user);
+	if (err < 0) {
+		dev_err(bmc, "Unable to register user with IPMI "
+			"interface %d\n", data->interface);
+		return -EACCES;
+	}
+
+	return 0;
+}
+
+/* Send an IPMI command */
+static int aem_send_message(struct aem_ipmi_data *data)
+{
+	int err;
+
+	err = ipmi_validate_addr(&data->address, sizeof(data->address));
+	if (err)
+		goto out;
+
+	data->tx_msgid++;
+	err = ipmi_request_settime(data->user, &data->address, data->tx_msgid,
+				   &data->tx_message, data, 0, 0, 0);
+	if (err)
+		goto out1;
+
+	return 0;
+out1:
+	dev_err(data->bmc_device, "request_settime=%x\n", err);
+	return err;
+out:
+	dev_err(data->bmc_device, "validate_addr=%x\n", err);
+	return err;
+}
+
+/* Dispatch IPMI messages to callers */
+static void aem_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
+{
+	unsigned short rx_len;
+	struct aem_ipmi_data *data = user_msg_data;
+
+	if (msg->msgid != data->tx_msgid) {
+		dev_err(data->bmc_device, "Mismatch between received msgid "
+			"(%02x) and transmitted msgid (%02x)!\n",
+			(int)msg->msgid,
+			(int)data->tx_msgid);
+		ipmi_free_recv_msg(msg);
+		return;
+	}
+
+	data->rx_recv_type = msg->recv_type;
+	if (msg->msg.data_len > 0)
+		data->rx_result = msg->msg.data[0];
+	else
+		data->rx_result = IPMI_UNKNOWN_ERR_COMPLETION_CODE;
+
+	if (msg->msg.data_len > 1) {
+		rx_len = msg->msg.data_len - 1;
+		if (data->rx_msg_len < rx_len)
+			rx_len = data->rx_msg_len;
+		data->rx_msg_len = rx_len;
+		memcpy(data->rx_msg_data, msg->msg.data + 1, data->rx_msg_len);
+	} else
+		data->rx_msg_len = 0;
+
+	ipmi_free_recv_msg(msg);
+	complete(&data->read_complete);
+}
+
+/* ID functions */
+
+/* Obtain an id */
+static int aem_idr_get(int *id)
+{
+	int i, err;
+
+again:
+	if (unlikely(!idr_pre_get(&aem_idr, GFP_KERNEL)))
+		return -ENOMEM;
+
+	spin_lock(&aem_idr_lock);
+	err = idr_get_new(&aem_idr, NULL, &i);
+	spin_unlock(&aem_idr_lock);
+
+	if (unlikely(err == -EAGAIN))
+		goto again;
+	else if (unlikely(err))
+		return err;
+
+	*id = i & MAX_ID_MASK;
+	return 0;
+}
+
+/* Release an object ID */
+static void aem_idr_put(int id)
+{
+	spin_lock(&aem_idr_lock);
+	idr_remove(&aem_idr, id);
+	spin_unlock(&aem_idr_lock);
+}
+
+/* Sensor support functions */
+
+/* Read a sensor value */
+static int aem_read_sensor(struct aem_data *data, u8 elt, u8 reg,
+			   void *buf, size_t size)
+{
+	int rs_size, res;
+	struct aem_read_sensor_req rs_req;
+	struct aem_read_sensor_resp *rs_resp;
+	struct aem_ipmi_data *ipmi = &data->ipmi;
+
+	/* AEM registers are 1, 2, 4 or 8 bytes */
+	switch (size) {
+	case 1:
+	case 2:
+	case 4:
+	case 8:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	rs_req.id = system_x_id;
+	rs_req.module_handle = data->module_handle;
+	rs_req.element = elt;
+	rs_req.subcommand = AEM_READ_REGISTER;
+	rs_req.reg = reg;
+	rs_req.rx_buf_size = size;
+
+	ipmi->tx_message.cmd = AEM_ELEMENT_CMD;
+	ipmi->tx_message.data = (char *)&rs_req;
+	ipmi->tx_message.data_len = sizeof(rs_req);
+
+	rs_size = sizeof(*rs_resp) + size;
+	rs_resp = kzalloc(rs_size, GFP_KERNEL);
+	if (!rs_resp)
+		return -ENOMEM;
+
+	ipmi->rx_msg_data = rs_resp;
+	ipmi->rx_msg_len = rs_size;
+
+	aem_send_message(ipmi);
+
+	res = wait_for_completion_timeout(&ipmi->read_complete, IPMI_TIMEOUT);
+	if (!res)
+		return -ETIMEDOUT;
+
+	if (ipmi->rx_result || ipmi->rx_msg_len != rs_size ||
+	    memcmp(&rs_resp->id, &system_x_id, sizeof(system_x_id))) {
+		kfree(rs_resp);
+		return -ENOENT;
+	}
+
+	switch (size) {
+	case 1: {
+		u8 *x = buf;
+		*x = rs_resp->bytes[0];
+		break;
+	}
+	case 2: {
+		u16 *x = buf;
+		*x = be16_to_cpup((__be16 *)rs_resp->bytes);
+		break;
+	}
+	case 4: {
+		u32 *x = buf;
+		*x = be32_to_cpup((__be32 *)rs_resp->bytes);
+		break;
+	}
+	case 8: {
+		u64 *x = buf;
+		*x = be64_to_cpup((__be64 *)rs_resp->bytes);
+		break;
+	}
+	}
+
+	return 0;
+}
+
+/* Update AEM energy registers */
+static void update_aem_energy_one(struct aem_data *data, int which)
+{
+	aem_read_sensor(data, AEM_ENERGY_ELEMENT, which,
+			&data->energy[which], 8);
+}
+
+static void update_aem_energy(struct aem_data *data)
+{
+	update_aem_energy_one(data, 0);
+	if (data->ver_major < 2)
+		return;
+	update_aem_energy_one(data, 1);
+}
+
+/* Update all AEM1 sensors */
+static void update_aem1_sensors(struct aem_data *data)
+{
+	mutex_lock(&data->lock);
+	if (time_before(jiffies, data->last_updated + REFRESH_INTERVAL) &&
+	    data->valid)
+		goto out;
+
+	update_aem_energy(data);
+out:
+	mutex_unlock(&data->lock);
+}
+
+/* Update all AEM2 sensors */
+static void update_aem2_sensors(struct aem_data *data)
+{
+	int i;
+
+	mutex_lock(&data->lock);
+	if (time_before(jiffies, data->last_updated + REFRESH_INTERVAL) &&
+	    data->valid)
+		goto out;
+
+	update_aem_energy(data);
+	aem_read_sensor(data, AEM_EXHAUST_ELEMENT, 0, &data->temp[0], 1);
+	aem_read_sensor(data, AEM_EXHAUST_ELEMENT, 1, &data->temp[1], 1);
+
+	for (i = POWER_CAP; i <= POWER_AUX; i++)
+		aem_read_sensor(data, AEM_POWER_CAP_ELEMENT, i,
+				&data->pcap[i], 2);
+out:
+	mutex_unlock(&data->lock);
+}
+
+/* Delete an AEM instance */
+static void aem_delete(struct aem_data *data)
+{
+	list_del(&data->list);
+	aem_remove_sensors(data);
+	hwmon_device_unregister(data->hwmon_dev);
+	ipmi_destroy_user(data->ipmi.user);
+	dev_set_drvdata(&data->pdev->dev, NULL);
+	platform_device_unregister(data->pdev);
+	aem_idr_put(data->id);
+	kfree(data);
+}
+
+/* Probe functions for AEM1 devices */
+
+/* Retrieve version and module handle for an AEM1 instance */
+static int aem_find_aem1_count(struct aem_ipmi_data *data)
+{
+	int res;
+	struct aem_find_firmware_req	ff_req;
+	struct aem_find_firmware_resp	ff_resp;
+
+	ff_req.id = system_x_id;
+	ff_req.index = 0;
+	ff_req.module_type_id = cpu_to_be16(AEM_MODULE_TYPE_ID);
+
+	data->tx_message.cmd = AEM_FIND_FW_CMD;
+	data->tx_message.data = (char *)&ff_req;
+	data->tx_message.data_len = sizeof(ff_req);
+
+	data->rx_msg_data = &ff_resp;
+	data->rx_msg_len = sizeof(ff_resp);
+
+	aem_send_message(data);
+
+	res = wait_for_completion_timeout(&data->read_complete, IPMI_TIMEOUT);
+	if (!res)
+		return -ETIMEDOUT;
+
+	if (data->rx_result || data->rx_msg_len != sizeof(ff_resp) ||
+	    memcmp(&ff_resp.id, &system_x_id, sizeof(system_x_id)))
+		return -ENOENT;
+
+	return ff_resp.num_instances;
+}
+
+/* Find and initialize one AEM1 instance */
+static int aem_init_aem1_inst(struct aem_ipmi_data *probe, u8 module_handle)
+{
+	struct aem_data *data;
+	int i;
+	int res = -ENOMEM;
+
+	data = kzalloc(sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return res;
+	mutex_init(&data->lock);
+
+	/* Copy instance data */
+	data->ver_major = 1;
+	data->ver_minor = 0;
+	data->module_handle = module_handle;
+	for (i = 0; i < AEM1_NUM_ENERGY_REGS; i++)
+		data->power_period[i] = AEM_DEFAULT_POWER_INTERVAL;
+
+	/* Create sub-device for this fw instance */
+	if (aem_idr_get(&data->id))
+		goto id_err;
+
+	data->pdev = platform_device_alloc(DRVNAME, data->id);
+	if (!data->pdev)
+		goto dev_err;
+	data->pdev->dev.driver = &aem_driver.driver;
+
+	res = platform_device_add(data->pdev);
+	if (res)
+		goto ipmi_err;
+
+	dev_set_drvdata(&data->pdev->dev, data);
+
+	/* Set up IPMI interface */
+	if (aem_init_ipmi_data(&data->ipmi, probe->interface,
+			       probe->bmc_device))
+		goto ipmi_err;
+
+	/* Register with hwmon */
+	data->hwmon_dev = hwmon_device_register(&data->pdev->dev);
+
+	if (IS_ERR(data->hwmon_dev)) {
+		dev_err(&data->pdev->dev, "Unable to register hwmon "
+			"device for IPMI interface %d\n",
+			probe->interface);
+		goto hwmon_reg_err;
+	}
+
+	data->update = update_aem1_sensors;
+
+	/* Find sensors */
+	if (aem1_find_sensors(data))
+		goto sensor_err;
+
+	/* Add to our list of AEM devices */
+	list_add_tail(&data->list, &driver_data.aem_devices);
+
+	dev_info(data->ipmi.bmc_device, "Found AEM v%d.%d at 0x%X\n",
+		 data->ver_major, data->ver_minor,
+		 data->module_handle);
+	return 0;
+
+sensor_err:
+	hwmon_device_unregister(data->hwmon_dev);
+hwmon_reg_err:
+	ipmi_destroy_user(data->ipmi.user);
+ipmi_err:
+	dev_set_drvdata(&data->pdev->dev, NULL);
+	platform_device_unregister(data->pdev);
+dev_err:
+	aem_idr_put(data->id);
+id_err:
+	kfree(data);
+
+	return res;
+}
+
+/* Find and initialize all AEM1 instances */
+static int aem_init_aem1(struct aem_ipmi_data *probe)
+{
+	int num, i, err;
+
+	num = aem_find_aem1_count(probe);
+	for (i = 0; i < num; i++) {
+		err = aem_init_aem1_inst(probe, i);
+		if (err) {
+			dev_err(probe->bmc_device,
+				"Error %d initializing AEM1 0x%X\n",
+				err, i);
+			return err;
+		}
+	}
+
+	return 0;
+}
+
+/* Probe functions for AEM2 devices */
+
+/* Retrieve version and module handle for an AEM2 instance */
+static int aem_find_aem2(struct aem_ipmi_data *data,
+			    struct aem_find_instance_resp *fi_resp,
+			    int instance_num)
+{
+	int res;
+	struct aem_find_instance_req fi_req;
+
+	fi_req.id = system_x_id;
+	fi_req.instance_number = instance_num;
+	fi_req.module_type_id = cpu_to_be16(AEM_MODULE_TYPE_ID);
+
+	data->tx_message.cmd = AEM_FW_INSTANCE_CMD;
+	data->tx_message.data = (char *)&fi_req;
+	data->tx_message.data_len = sizeof(fi_req);
+
+	data->rx_msg_data = fi_resp;
+	data->rx_msg_len = sizeof(*fi_resp);
+
+	aem_send_message(data);
+
+	res = wait_for_completion_timeout(&data->read_complete, IPMI_TIMEOUT);
+	if (!res)
+		return -ETIMEDOUT;
+
+	if (data->rx_result || data->rx_msg_len != sizeof(*fi_resp) ||
+	    memcmp(&fi_resp->id, &system_x_id, sizeof(system_x_id)) ||
+	    fi_resp->num_instances <= instance_num)
+		return -ENOENT;
+
+	return 0;
+}
+
+/* Find and initialize one AEM2 instance */
+static int aem_init_aem2_inst(struct aem_ipmi_data *probe,
+			      struct aem_find_instance_resp *fi_resp)
+{
+	struct aem_data *data;
+	int i;
+	int res = -ENOMEM;
+
+	data = kzalloc(sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return res;
+	mutex_init(&data->lock);
+
+	/* Copy instance data */
+	data->ver_major = fi_resp->major;
+	data->ver_minor = fi_resp->minor;
+	data->module_handle = fi_resp->module_handle;
+	for (i = 0; i < AEM2_NUM_ENERGY_REGS; i++)
+		data->power_period[i] = AEM_DEFAULT_POWER_INTERVAL;
+
+	/* Create sub-device for this fw instance */
+	if (aem_idr_get(&data->id))
+		goto id_err;
+
+	data->pdev = platform_device_alloc(DRVNAME, data->id);
+	if (!data->pdev)
+		goto dev_err;
+	data->pdev->dev.driver = &aem_driver.driver;
+
+	res = platform_device_add(data->pdev);
+	if (res)
+		goto ipmi_err;
+
+	dev_set_drvdata(&data->pdev->dev, data);
+
+	/* Set up IPMI interface */
+	if (aem_init_ipmi_data(&data->ipmi, probe->interface,
+			       probe->bmc_device))
+		goto ipmi_err;
+
+	/* Register with hwmon */
+	data->hwmon_dev = hwmon_device_register(&data->pdev->dev);
+
+	if (IS_ERR(data->hwmon_dev)) {
+		dev_err(&data->pdev->dev, "Unable to register hwmon "
+			"device for IPMI interface %d\n",
+			probe->interface);
+		goto hwmon_reg_err;
+	}
+
+	data->update = update_aem2_sensors;
+
+	/* Find sensors */
+	if (aem2_find_sensors(data))
+		goto sensor_err;
+
+	/* Add to our list of AEM devices */
+	list_add_tail(&data->list, &driver_data.aem_devices);
+
+	dev_info(data->ipmi.bmc_device, "Found AEM v%d.%d at 0x%X\n",
+		 data->ver_major, data->ver_minor,
+		 data->module_handle);
+	return 0;
+
+sensor_err:
+	hwmon_device_unregister(data->hwmon_dev);
+hwmon_reg_err:
+	ipmi_destroy_user(data->ipmi.user);
+ipmi_err:
+	dev_set_drvdata(&data->pdev->dev, NULL);
+	platform_device_unregister(data->pdev);
+dev_err:
+	aem_idr_put(data->id);
+id_err:
+	kfree(data);
+
+	return res;
+}
+
+/* Find and initialize all AEM2 instances */
+static int aem_init_aem2(struct aem_ipmi_data *probe)
+{
+	struct aem_find_instance_resp fi_resp;
+	int err;
+	int i = 0;
+
+	while (!aem_find_aem2(probe, &fi_resp, i)) {
+		if (fi_resp.major != 2) {
+			dev_err(probe->bmc_device, "Unknown AEM v%d; please "
+				"report this to the maintainer.\n",
+				fi_resp.major);
+			i++;
+			continue;
+		}
+		err = aem_init_aem2_inst(probe, &fi_resp);
+		if (err) {
+			dev_err(probe->bmc_device,
+				"Error %d initializing AEM2 0x%X\n",
+				err, fi_resp.module_handle);
+			return err;
+		}
+		i++;
+	}
+
+	return 0;
+}
+
+/* Probe a BMC for AEM firmware instances */
+static void aem_register_bmc(int iface, struct device *dev)
+{
+	struct aem_ipmi_data probe;
+
+	if (aem_init_ipmi_data(&probe, iface, dev))
+		return;
+
+	/* Ignore probe errors; they won't cause problems */
+	aem_init_aem1(&probe);
+	aem_init_aem2(&probe);
+
+	ipmi_destroy_user(probe.user);
+}
+
+/* Handle BMC deletion */
+static void aem_bmc_gone(int iface)
+{
+	struct aem_data *p1, *next1;
+
+	list_for_each_entry_safe(p1, next1, &driver_data.aem_devices, list)
+		if (p1->ipmi.interface == iface)
+			aem_delete(p1);
+}
+
+/* sysfs support functions */
+
+/* AEM device name */
+static ssize_t show_name(struct device *dev, struct device_attribute *devattr,
+			 char *buf)
+{
+	struct aem_data *data = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%s%d\n", DRVNAME, data->ver_major);
+}
+static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0);
+
+/* AEM device version */
+static ssize_t show_version(struct device *dev,
+			    struct device_attribute *devattr,
+			    char *buf)
+{
+	struct aem_data *data = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%d.%d\n", data->ver_major, data->ver_minor);
+}
+static SENSOR_DEVICE_ATTR(version, S_IRUGO, show_version, NULL, 0);
+
+/* Display power use */
+static ssize_t aem_show_power(struct device *dev,
+			      struct device_attribute *devattr,
+			      char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct aem_data *data = dev_get_drvdata(dev);
+	u64 before, after, delta, time;
+	signed long leftover;
+	struct timespec b, a;
+
+	mutex_lock(&data->lock);
+	update_aem_energy_one(data, attr->index);
+	getnstimeofday(&b);
+	before = data->energy[attr->index];
+
+	leftover = schedule_timeout_interruptible(
+			msecs_to_jiffies(data->power_period[attr->index])
+		   );
+	if (leftover) {
+		mutex_unlock(&data->lock);
+		return 0;
+	}
+
+	update_aem_energy_one(data, attr->index);
+	getnstimeofday(&a);
+	after = data->energy[attr->index];
+	mutex_unlock(&data->lock);
+
+	time = timespec_to_ns(&a) - timespec_to_ns(&b);
+	delta = (after - before) * UJ_PER_MJ;
+
+	return sprintf(buf, "%llu\n",
+		(unsigned long long)div64_u64(delta * NSEC_PER_SEC, time));
+}
+
+/* Display energy use */
+static ssize_t aem_show_energy(struct device *dev,
+			       struct device_attribute *devattr,
+			       char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct aem_data *a = dev_get_drvdata(dev);
+	mutex_lock(&a->lock);
+	update_aem_energy_one(a, attr->index);
+	mutex_unlock(&a->lock);
+
+	return sprintf(buf, "%llu\n",
+			(unsigned long long)a->energy[attr->index] * 1000);
+}
+
+/* Display power interval registers */
+static ssize_t aem_show_power_period(struct device *dev,
+				     struct device_attribute *devattr,
+				     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct aem_data *a = dev_get_drvdata(dev);
+	a->update(a);
+
+	return sprintf(buf, "%lu\n", a->power_period[attr->index]);
+}
+
+/* Set power interval registers */
+static ssize_t aem_set_power_period(struct device *dev,
+				    struct device_attribute *devattr,
+				    const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct aem_data *a = dev_get_drvdata(dev);
+	unsigned long temp;
+	int res;
+
+	res = strict_strtoul(buf, 10, &temp);
+	if (res)
+		return res;
+
+	if (temp < AEM_MIN_POWER_INTERVAL)
+		return -EINVAL;
+
+	mutex_lock(&a->lock);
+	a->power_period[attr->index] = temp;
+	mutex_unlock(&a->lock);
+
+	return count;
+}
+
+/* Discover sensors on an AEM device */
+static int aem_register_sensors(struct aem_data *data,
+				struct aem_ro_sensor_template *ro,
+				struct aem_rw_sensor_template *rw)
+{
+	struct device *dev = &data->pdev->dev;
+	struct sensor_device_attribute *sensors = data->sensors;
+	int err;
+
+	/* Set up read-only sensors */
+	while (ro->label) {
+		sensors->dev_attr.attr.name = ro->label;
+		sensors->dev_attr.attr.mode = S_IRUGO;
+		sensors->dev_attr.show = ro->show;
+		sensors->index = ro->index;
+
+		err = device_create_file(dev, &sensors->dev_attr);
+		if (err) {
+			sensors->dev_attr.attr.name = NULL;
+			goto error;
+		}
+		sensors++;
+		ro++;
+	}
+
+	/* Set up read-write sensors */
+	while (rw->label) {
+		sensors->dev_attr.attr.name = rw->label;
+		sensors->dev_attr.attr.mode = S_IRUGO | S_IWUSR;
+		sensors->dev_attr.show = rw->show;
+		sensors->dev_attr.store = rw->set;
+		sensors->index = rw->index;
+
+		err = device_create_file(dev, &sensors->dev_attr);
+		if (err) {
+			sensors->dev_attr.attr.name = NULL;
+			goto error;
+		}
+		sensors++;
+		rw++;
+	}
+
+	err = device_create_file(dev, &sensor_dev_attr_name.dev_attr);
+	if (err)
+		goto error;
+	err = device_create_file(dev, &sensor_dev_attr_version.dev_attr);
+	return err;
+
+error:
+	aem_remove_sensors(data);
+	return err;
+}
+
+/* sysfs support functions for AEM2 sensors */
+
+/* Display temperature use */
+static ssize_t aem2_show_temp(struct device *dev,
+			      struct device_attribute *devattr,
+			      char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct aem_data *a = dev_get_drvdata(dev);
+	a->update(a);
+
+	return sprintf(buf, "%u\n", a->temp[attr->index] * 1000);
+}
+
+/* Display power-capping registers */
+static ssize_t aem2_show_pcap_value(struct device *dev,
+				    struct device_attribute *devattr,
+				    char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct aem_data *a = dev_get_drvdata(dev);
+	a->update(a);
+
+	return sprintf(buf, "%u\n", a->pcap[attr->index] * 100000);
+}
+
+/* Remove sensors attached to an AEM device */
+static void aem_remove_sensors(struct aem_data *data)
+{
+	int i;
+
+	for (i = 0; i < AEM_NUM_SENSORS; i++) {
+		if (!data->sensors[i].dev_attr.attr.name)
+			continue;
+		device_remove_file(&data->pdev->dev,
+				   &data->sensors[i].dev_attr);
+	}
+
+	device_remove_file(&data->pdev->dev,
+			   &sensor_dev_attr_name.dev_attr);
+	device_remove_file(&data->pdev->dev,
+			   &sensor_dev_attr_version.dev_attr);
+}
+
+/* Sensor probe functions */
+
+/* Description of AEM1 sensors */
+static struct aem_ro_sensor_template aem1_ro_sensors[] = {
+{"energy1_input",  aem_show_energy, 0},
+{"power1_average", aem_show_power,  0},
+{NULL,		   NULL,	    0},
+};
+
+static struct aem_rw_sensor_template aem1_rw_sensors[] = {
+{"power1_average_interval", aem_show_power_period, aem_set_power_period, 0},
+{NULL,			    NULL,                  NULL,                 0},
+};
+
+/* Description of AEM2 sensors */
+static struct aem_ro_sensor_template aem2_ro_sensors[] = {
+{"energy1_input",	  aem_show_energy,	0},
+{"energy2_input",	  aem_show_energy,	1},
+{"power1_average",	  aem_show_power,	0},
+{"power2_average",	  aem_show_power,	1},
+{"temp1_input",		  aem2_show_temp,	0},
+{"temp2_input",		  aem2_show_temp,	1},
+
+{"power4_average",	  aem2_show_pcap_value,	POWER_CAP_MAX_HOTPLUG},
+{"power5_average",	  aem2_show_pcap_value,	POWER_CAP_MAX},
+{"power6_average",	  aem2_show_pcap_value,	POWER_CAP_MIN_WARNING},
+{"power7_average",	  aem2_show_pcap_value,	POWER_CAP_MIN},
+
+{"power3_average", 	  aem2_show_pcap_value,	POWER_AUX},
+{"power_cap",		  aem2_show_pcap_value,	POWER_CAP},
+{NULL,                    NULL,                 0},
+};
+
+static struct aem_rw_sensor_template aem2_rw_sensors[] = {
+{"power1_average_interval", aem_show_power_period, aem_set_power_period, 0},
+{"power2_average_interval", aem_show_power_period, aem_set_power_period, 1},
+{NULL,			    NULL,                  NULL,                 0},
+};
+
+/* Set up AEM1 sensor attrs */
+static int aem1_find_sensors(struct aem_data *data)
+{
+	return aem_register_sensors(data, aem1_ro_sensors, aem1_rw_sensors);
+}
+
+/* Set up AEM2 sensor attrs */
+static int aem2_find_sensors(struct aem_data *data)
+{
+	return aem_register_sensors(data, aem2_ro_sensors, aem2_rw_sensors);
+}
+
+/* Module init/exit routines */
+
+static int __init aem_init(void)
+{
+	int res;
+
+	res = driver_register(&aem_driver.driver);
+	if (res) {
+		printk(KERN_ERR "Can't register aem driver\n");
+		return res;
+	}
+
+	res = ipmi_smi_watcher_register(&driver_data.bmc_events);
+	if (res)
+		goto ipmi_reg_err;
+	return 0;
+
+ipmi_reg_err:
+	driver_unregister(&aem_driver.driver);
+	return res;
+
+}
+
+static void __exit aem_exit(void)
+{
+	struct aem_data *p1, *next1;
+
+	ipmi_smi_watcher_unregister(&driver_data.bmc_events);
+	driver_unregister(&aem_driver.driver);
+	list_for_each_entry_safe(p1, next1, &driver_data.aem_devices, list)
+		aem_delete(p1);
+}
+
+MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>");
+MODULE_DESCRIPTION("IBM AEM power/temp/energy sensor driver");
+MODULE_LICENSE("GPL");
+
+module_init(aem_init);
+module_exit(aem_exit);
+
+MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3350-*");
+MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3550-*");
+MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3650-*");
+MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3655-*");
+MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3755-*");
+MODULE_ALIAS("dmi:bvnIBM:*:pnIBM3850M2/x3950M2-*");
diff --git a/drivers/hwmon/ibmpex.c b/drivers/hwmon/ibmpex.c
new file mode 100644
index 0000000..537d9fb
--- /dev/null
+++ b/drivers/hwmon/ibmpex.c
@@ -0,0 +1,616 @@
+/*
+ * A hwmon driver for the IBM PowerExecutive temperature/power sensors
+ * Copyright (C) 2007 IBM
+ *
+ * Author: Darrick J. Wong <djwong@us.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/ipmi.h>
+#include <linux/module.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/jiffies.h>
+#include <linux/mutex.h>
+
+#define REFRESH_INTERVAL	(2 * HZ)
+#define DRVNAME			"ibmpex"
+
+#define PEX_GET_VERSION		1
+#define PEX_GET_SENSOR_COUNT	2
+#define PEX_GET_SENSOR_NAME	3
+#define PEX_RESET_HIGH_LOW	4
+#define PEX_GET_SENSOR_DATA	6
+
+#define PEX_NET_FUNCTION	0x3A
+#define PEX_COMMAND		0x3C
+
+static inline u16 extract_value(const char *data, int offset)
+{
+	return be16_to_cpup((u16 *)&data[offset]);
+}
+
+#define TEMP_SENSOR		1
+#define POWER_SENSOR		2
+
+#define PEX_SENSOR_TYPE_LEN	3
+static u8 const power_sensor_sig[] = {0x70, 0x77, 0x72};
+static u8 const temp_sensor_sig[]  = {0x74, 0x65, 0x6D};
+
+#define PEX_MULT_LEN		2
+static u8 const watt_sensor_sig[]  = {0x41, 0x43};
+
+#define PEX_NUM_SENSOR_FUNCS	3
+static char const * const power_sensor_name_templates[] = {
+	"%s%d_average",
+	"%s%d_average_lowest",
+	"%s%d_average_highest"
+};
+static char const * const temp_sensor_name_templates[] = {
+	"%s%d_input",
+	"%s%d_input_lowest",
+	"%s%d_input_highest"
+};
+
+static void ibmpex_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data);
+static void ibmpex_register_bmc(int iface, struct device *dev);
+static void ibmpex_bmc_gone(int iface);
+
+struct ibmpex_sensor_data {
+	int			in_use;
+	s16			values[PEX_NUM_SENSOR_FUNCS];
+	int			multiplier;
+
+	struct sensor_device_attribute_2	attr[PEX_NUM_SENSOR_FUNCS];
+};
+
+struct ibmpex_bmc_data {
+	struct list_head	list;
+	struct device		*hwmon_dev;
+	struct device		*bmc_device;
+	struct mutex		lock;
+	char			valid;
+	unsigned long		last_updated;	/* In jiffies */
+
+	struct ipmi_addr	address;
+	struct completion	read_complete;
+	ipmi_user_t		user;
+	int			interface;
+
+	struct kernel_ipmi_msg	tx_message;
+	unsigned char		tx_msg_data[IPMI_MAX_MSG_LENGTH];
+	long			tx_msgid;
+
+	unsigned char		rx_msg_data[IPMI_MAX_MSG_LENGTH];
+	unsigned long		rx_msg_len;
+	unsigned char		rx_result;
+	int			rx_recv_type;
+
+	unsigned char		sensor_major;
+	unsigned char		sensor_minor;
+
+	unsigned char		num_sensors;
+	struct ibmpex_sensor_data	*sensors;
+};
+
+struct ibmpex_driver_data {
+	struct list_head	bmc_data;
+	struct ipmi_smi_watcher	bmc_events;
+	struct ipmi_user_hndl	ipmi_hndlrs;
+};
+
+static struct ibmpex_driver_data driver_data = {
+	.bmc_data = LIST_HEAD_INIT(driver_data.bmc_data),
+	.bmc_events = {
+		.owner = THIS_MODULE,
+		.new_smi = ibmpex_register_bmc,
+		.smi_gone = ibmpex_bmc_gone,
+	},
+	.ipmi_hndlrs = {
+		.ipmi_recv_hndl = ibmpex_msg_handler,
+	},
+};
+
+static int ibmpex_send_message(struct ibmpex_bmc_data *data)
+{
+	int err;
+
+	err = ipmi_validate_addr(&data->address, sizeof(data->address));
+	if (err)
+		goto out;
+
+	data->tx_msgid++;
+	err = ipmi_request_settime(data->user, &data->address, data->tx_msgid,
+				   &data->tx_message, data, 0, 0, 0);
+	if (err)
+		goto out1;
+
+	return 0;
+out1:
+	dev_err(data->bmc_device, "request_settime=%x\n", err);
+	return err;
+out:
+	dev_err(data->bmc_device, "validate_addr=%x\n", err);
+	return err;
+}
+
+static int ibmpex_ver_check(struct ibmpex_bmc_data *data)
+{
+	data->tx_msg_data[0] = PEX_GET_VERSION;
+	data->tx_message.data_len = 1;
+	ibmpex_send_message(data);
+
+	wait_for_completion(&data->read_complete);
+
+	if (data->rx_result || data->rx_msg_len != 6)
+		return -ENOENT;
+
+	data->sensor_major = data->rx_msg_data[0];
+	data->sensor_minor = data->rx_msg_data[1];
+
+	dev_info(data->bmc_device, "Found BMC with sensor interface "
+		 "v%d.%d %d-%02d-%02d on interface %d\n",
+		 data->sensor_major,
+		 data->sensor_minor,
+		 extract_value(data->rx_msg_data, 2),
+		 data->rx_msg_data[4],
+		 data->rx_msg_data[5],
+		 data->interface);
+
+	return 0;
+}
+
+static int ibmpex_query_sensor_count(struct ibmpex_bmc_data *data)
+{
+	data->tx_msg_data[0] = PEX_GET_SENSOR_COUNT;
+	data->tx_message.data_len = 1;
+	ibmpex_send_message(data);
+
+	wait_for_completion(&data->read_complete);
+
+	if (data->rx_result || data->rx_msg_len != 1)
+		return -ENOENT;
+
+	return data->rx_msg_data[0];
+}
+
+static int ibmpex_query_sensor_name(struct ibmpex_bmc_data *data, int sensor)
+{
+	data->tx_msg_data[0] = PEX_GET_SENSOR_NAME;
+	data->tx_msg_data[1] = sensor;
+	data->tx_message.data_len = 2;
+	ibmpex_send_message(data);
+
+	wait_for_completion(&data->read_complete);
+
+	if (data->rx_result || data->rx_msg_len < 1)
+		return -ENOENT;
+
+	return 0;
+}
+
+static int ibmpex_query_sensor_data(struct ibmpex_bmc_data *data, int sensor)
+{
+	data->tx_msg_data[0] = PEX_GET_SENSOR_DATA;
+	data->tx_msg_data[1] = sensor;
+	data->tx_message.data_len = 2;
+	ibmpex_send_message(data);
+
+	wait_for_completion(&data->read_complete);
+
+	if (data->rx_result || data->rx_msg_len < 26) {
+		dev_err(data->bmc_device, "Error reading sensor %d.\n",
+			sensor);
+		return -ENOENT;
+	}
+
+	return 0;
+}
+
+static int ibmpex_reset_high_low_data(struct ibmpex_bmc_data *data)
+{
+	data->tx_msg_data[0] = PEX_RESET_HIGH_LOW;
+	data->tx_message.data_len = 1;
+	ibmpex_send_message(data);
+
+	wait_for_completion(&data->read_complete);
+
+	return 0;
+}
+
+static void ibmpex_update_device(struct ibmpex_bmc_data *data)
+{
+	int i, err;
+
+	mutex_lock(&data->lock);
+	if (time_before(jiffies, data->last_updated + REFRESH_INTERVAL) &&
+	    data->valid)
+		goto out;
+
+	for (i = 0; i < data->num_sensors; i++) {
+		if (!data->sensors[i].in_use)
+			continue;
+		err = ibmpex_query_sensor_data(data, i);
+		if (err)
+			continue;
+		data->sensors[i].values[0] =
+			extract_value(data->rx_msg_data, 16);
+		data->sensors[i].values[1] =
+			extract_value(data->rx_msg_data, 18);
+		data->sensors[i].values[2] =
+			extract_value(data->rx_msg_data, 20);
+	}
+
+	data->last_updated = jiffies;
+	data->valid = 1;
+
+out:
+	mutex_unlock(&data->lock);
+}
+
+static struct ibmpex_bmc_data *get_bmc_data(int iface)
+{
+	struct ibmpex_bmc_data *p, *next;
+
+	list_for_each_entry_safe(p, next, &driver_data.bmc_data, list)
+		if (p->interface == iface)
+			return p;
+
+	return NULL;
+}
+
+static ssize_t show_name(struct device *dev, struct device_attribute *devattr,
+			 char *buf)
+{
+	return sprintf(buf, "%s\n", DRVNAME);
+}
+static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0);
+
+static ssize_t ibmpex_show_sensor(struct device *dev,
+				  struct device_attribute *devattr,
+				  char *buf)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct ibmpex_bmc_data *data = dev_get_drvdata(dev);
+	int mult = data->sensors[attr->index].multiplier;
+	ibmpex_update_device(data);
+
+	return sprintf(buf, "%d\n",
+		       data->sensors[attr->index].values[attr->nr] * mult);
+}
+
+static ssize_t ibmpex_reset_high_low(struct device *dev,
+				     struct device_attribute *devattr,
+				     const char *buf,
+				     size_t count)
+{
+	struct ibmpex_bmc_data *data = dev_get_drvdata(dev);
+
+	ibmpex_reset_high_low_data(data);
+
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(reset_high_low, S_IWUSR, NULL,
+			  ibmpex_reset_high_low, 0);
+
+static int is_power_sensor(const char *sensor_id, int len)
+{
+	if (len < PEX_SENSOR_TYPE_LEN)
+		return 0;
+
+	if (!memcmp(sensor_id, power_sensor_sig, PEX_SENSOR_TYPE_LEN))
+		return 1;
+	return 0;
+}
+
+static int is_temp_sensor(const char *sensor_id, int len)
+{
+	if (len < PEX_SENSOR_TYPE_LEN)
+		return 0;
+
+	if (!memcmp(sensor_id, temp_sensor_sig, PEX_SENSOR_TYPE_LEN))
+		return 1;
+	return 0;
+}
+
+static int power_sensor_multiplier(struct ibmpex_bmc_data *data,
+				   const char *sensor_id, int len)
+{
+	int i;
+
+	if (data->sensor_major == 2)
+		return 1000000;
+
+	for (i = PEX_SENSOR_TYPE_LEN; i < len - 1; i++)
+		if (!memcmp(&sensor_id[i], watt_sensor_sig, PEX_MULT_LEN))
+			return 1000000;
+
+	return 100000;
+}
+
+static int create_sensor(struct ibmpex_bmc_data *data, int type,
+			 int counter, int sensor, int func)
+{
+	int err;
+	char *n;
+
+	n = kmalloc(32, GFP_KERNEL);
+	if (!n)
+		return -ENOMEM;
+
+	if (type == TEMP_SENSOR)
+		sprintf(n, temp_sensor_name_templates[func], "temp", counter);
+	else if (type == POWER_SENSOR)
+		sprintf(n, power_sensor_name_templates[func], "power", counter);
+
+	data->sensors[sensor].attr[func].dev_attr.attr.name = n;
+	data->sensors[sensor].attr[func].dev_attr.attr.mode = S_IRUGO;
+	data->sensors[sensor].attr[func].dev_attr.show = ibmpex_show_sensor;
+	data->sensors[sensor].attr[func].index = sensor;
+	data->sensors[sensor].attr[func].nr = func;
+
+	err = device_create_file(data->bmc_device,
+				 &data->sensors[sensor].attr[func].dev_attr);
+	if (err) {
+		data->sensors[sensor].attr[func].dev_attr.attr.name = NULL;
+		kfree(n);
+		return err;
+	}
+
+	return 0;
+}
+
+static int ibmpex_find_sensors(struct ibmpex_bmc_data *data)
+{
+	int i, j, err;
+	int sensor_type;
+	int sensor_counter;
+	int num_power = 0;
+	int num_temp = 0;
+
+	err = ibmpex_query_sensor_count(data);
+	if (err <= 0)
+		return -ENOENT;
+	data->num_sensors = err;
+
+	data->sensors = kzalloc(data->num_sensors * sizeof(*data->sensors),
+				GFP_KERNEL);
+	if (!data->sensors)
+		return -ENOMEM;
+
+	for (i = 0; i < data->num_sensors; i++) {
+		err = ibmpex_query_sensor_name(data, i);
+		if (err)
+			continue;
+
+		if (is_power_sensor(data->rx_msg_data, data->rx_msg_len)) {
+			sensor_type = POWER_SENSOR;
+			num_power++;
+			sensor_counter = num_power;
+			data->sensors[i].multiplier =
+				power_sensor_multiplier(data,
+							data->rx_msg_data,
+							data->rx_msg_len);
+		} else if (is_temp_sensor(data->rx_msg_data,
+					  data->rx_msg_len)) {
+			sensor_type = TEMP_SENSOR;
+			num_temp++;
+			sensor_counter = num_temp;
+			data->sensors[i].multiplier = 1000;
+		} else
+			continue;
+
+		data->sensors[i].in_use = 1;
+
+		/* Create attributes */
+		for (j = 0; j < PEX_NUM_SENSOR_FUNCS; j++) {
+			err = create_sensor(data, sensor_type, sensor_counter,
+					    i, j);
+			if (err)
+				goto exit_remove;
+		}
+	}
+
+	err = device_create_file(data->bmc_device,
+			&sensor_dev_attr_reset_high_low.dev_attr);
+	if (err)
+		goto exit_remove;
+
+	err = device_create_file(data->bmc_device,
+			&sensor_dev_attr_name.dev_attr);
+	if (err)
+		goto exit_remove;
+
+	return 0;
+
+exit_remove:
+	device_remove_file(data->bmc_device,
+			   &sensor_dev_attr_reset_high_low.dev_attr);
+	device_remove_file(data->bmc_device, &sensor_dev_attr_name.dev_attr);
+	for (i = 0; i < data->num_sensors; i++)
+		for (j = 0; j < PEX_NUM_SENSOR_FUNCS; j++) {
+			if (!data->sensors[i].attr[j].dev_attr.attr.name)
+				continue;
+			device_remove_file(data->bmc_device,
+				&data->sensors[i].attr[j].dev_attr);
+			kfree(data->sensors[i].attr[j].dev_attr.attr.name);
+		}
+
+	kfree(data->sensors);
+	return err;
+}
+
+static void ibmpex_register_bmc(int iface, struct device *dev)
+{
+	struct ibmpex_bmc_data *data;
+	int err;
+
+	data = kzalloc(sizeof(*data), GFP_KERNEL);
+	if (!data) {
+		dev_err(dev, "Insufficient memory for BMC interface.\n");
+		return;
+	}
+
+	data->address.addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE;
+	data->address.channel = IPMI_BMC_CHANNEL;
+	data->address.data[0] = 0;
+	data->interface = iface;
+	data->bmc_device = dev;
+
+	/* Create IPMI messaging interface user */
+	err = ipmi_create_user(data->interface, &driver_data.ipmi_hndlrs,
+			       data, &data->user);
+	if (err < 0) {
+		dev_err(dev, "Unable to register user with IPMI "
+			"interface %d\n", data->interface);
+		goto out;
+	}
+
+	mutex_init(&data->lock);
+
+	/* Initialize message */
+	data->tx_msgid = 0;
+	init_completion(&data->read_complete);
+	data->tx_message.netfn = PEX_NET_FUNCTION;
+	data->tx_message.cmd = PEX_COMMAND;
+	data->tx_message.data = data->tx_msg_data;
+
+	/* Does this BMC support PowerExecutive? */
+	err = ibmpex_ver_check(data);
+	if (err)
+		goto out_user;
+
+	/* Register the BMC as a HWMON class device */
+	data->hwmon_dev = hwmon_device_register(data->bmc_device);
+
+	if (IS_ERR(data->hwmon_dev)) {
+		dev_err(data->bmc_device, "Unable to register hwmon "
+			"device for IPMI interface %d\n",
+			data->interface);
+		goto out_user;
+	}
+
+	/* finally add the new bmc data to the bmc data list */
+	dev_set_drvdata(dev, data);
+	list_add_tail(&data->list, &driver_data.bmc_data);
+
+	/* Now go find all the sensors */
+	err = ibmpex_find_sensors(data);
+	if (err) {
+		dev_err(data->bmc_device, "Error %d finding sensors\n", err);
+		goto out_register;
+	}
+
+	return;
+
+out_register:
+	hwmon_device_unregister(data->hwmon_dev);
+out_user:
+	ipmi_destroy_user(data->user);
+out:
+	kfree(data);
+}
+
+static void ibmpex_bmc_delete(struct ibmpex_bmc_data *data)
+{
+	int i, j;
+
+	device_remove_file(data->bmc_device,
+			   &sensor_dev_attr_reset_high_low.dev_attr);
+	device_remove_file(data->bmc_device, &sensor_dev_attr_name.dev_attr);
+	for (i = 0; i < data->num_sensors; i++)
+		for (j = 0; j < PEX_NUM_SENSOR_FUNCS; j++) {
+			if (!data->sensors[i].attr[j].dev_attr.attr.name)
+				continue;
+			device_remove_file(data->bmc_device,
+				&data->sensors[i].attr[j].dev_attr);
+			kfree(data->sensors[i].attr[j].dev_attr.attr.name);
+		}
+
+	list_del(&data->list);
+	dev_set_drvdata(data->bmc_device, NULL);
+	hwmon_device_unregister(data->hwmon_dev);
+	ipmi_destroy_user(data->user);
+	kfree(data->sensors);
+	kfree(data);
+}
+
+static void ibmpex_bmc_gone(int iface)
+{
+	struct ibmpex_bmc_data *data = get_bmc_data(iface);
+
+	if (!data)
+		return;
+
+	ibmpex_bmc_delete(data);
+}
+
+static void ibmpex_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
+{
+	struct ibmpex_bmc_data *data = (struct ibmpex_bmc_data *)user_msg_data;
+
+	if (msg->msgid != data->tx_msgid) {
+		dev_err(data->bmc_device, "Mismatch between received msgid "
+			"(%02x) and transmitted msgid (%02x)!\n",
+			(int)msg->msgid,
+			(int)data->tx_msgid);
+		ipmi_free_recv_msg(msg);
+		return;
+	}
+
+	data->rx_recv_type = msg->recv_type;
+	if (msg->msg.data_len > 0)
+		data->rx_result = msg->msg.data[0];
+	else
+		data->rx_result = IPMI_UNKNOWN_ERR_COMPLETION_CODE;
+
+	if (msg->msg.data_len > 1) {
+		data->rx_msg_len = msg->msg.data_len - 1;
+		memcpy(data->rx_msg_data, msg->msg.data + 1, data->rx_msg_len);
+	} else
+		data->rx_msg_len = 0;
+
+	ipmi_free_recv_msg(msg);
+	complete(&data->read_complete);
+}
+
+static int __init ibmpex_init(void)
+{
+	return ipmi_smi_watcher_register(&driver_data.bmc_events);
+}
+
+static void __exit ibmpex_exit(void)
+{
+	struct ibmpex_bmc_data *p, *next;
+
+	ipmi_smi_watcher_unregister(&driver_data.bmc_events);
+	list_for_each_entry_safe(p, next, &driver_data.bmc_data, list)
+		ibmpex_bmc_delete(p);
+}
+
+MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>");
+MODULE_DESCRIPTION("IBM PowerExecutive power/temperature sensor driver");
+MODULE_LICENSE("GPL");
+
+module_init(ibmpex_init);
+module_exit(ibmpex_exit);
+
+MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3350-*");
+MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3550-*");
+MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3650-*");
+MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3655-*");
+MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3755-*");
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
new file mode 100644
index 0000000..7601cc2
--- /dev/null
+++ b/drivers/hwmon/it87.c
@@ -0,0 +1,1619 @@
+/*
+    it87.c - Part of lm_sensors, Linux kernel modules for hardware
+             monitoring.
+
+    The IT8705F is an LPC-based Super I/O part that contains UARTs, a
+    parallel port, an IR port, a MIDI port, a floppy controller, etc., in
+    addition to an Environment Controller (Enhanced Hardware Monitor and
+    Fan Controller)
+
+    This driver supports only the Environment Controller in the IT8705F and
+    similar parts.  The other devices are supported by different drivers.
+
+    Supports: IT8705F  Super I/O chip w/LPC interface
+              IT8712F  Super I/O chip w/LPC interface
+              IT8716F  Super I/O chip w/LPC interface
+              IT8718F  Super I/O chip w/LPC interface
+              IT8726F  Super I/O chip w/LPC interface
+              Sis950   A clone of the IT8705F
+
+    Copyright (C) 2001 Chris Gauthron
+    Copyright (C) 2005-2007 Jean Delvare <khali@linux-fr.org>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon-vid.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+#include <linux/string.h>
+#include <linux/dmi.h>
+#include <asm/io.h>
+
+#define DRVNAME "it87"
+
+enum chips { it87, it8712, it8716, it8718 };
+
+static unsigned short force_id;
+module_param(force_id, ushort, 0);
+MODULE_PARM_DESC(force_id, "Override the detected device ID");
+
+static struct platform_device *pdev;
+
+#define	REG	0x2e	/* The register to read/write */
+#define	DEV	0x07	/* Register: Logical device select */
+#define	VAL	0x2f	/* The value to read/write */
+#define PME	0x04	/* The device with the fan registers in it */
+#define GPIO	0x07	/* The device with the IT8718F VID value in it */
+#define	DEVID	0x20	/* Register: Device ID */
+#define	DEVREV	0x22	/* Register: Device Revision */
+
+static inline int
+superio_inb(int reg)
+{
+	outb(reg, REG);
+	return inb(VAL);
+}
+
+static int superio_inw(int reg)
+{
+	int val;
+	outb(reg++, REG);
+	val = inb(VAL) << 8;
+	outb(reg, REG);
+	val |= inb(VAL);
+	return val;
+}
+
+static inline void
+superio_select(int ldn)
+{
+	outb(DEV, REG);
+	outb(ldn, VAL);
+}
+
+static inline void
+superio_enter(void)
+{
+	outb(0x87, REG);
+	outb(0x01, REG);
+	outb(0x55, REG);
+	outb(0x55, REG);
+}
+
+static inline void
+superio_exit(void)
+{
+	outb(0x02, REG);
+	outb(0x02, VAL);
+}
+
+/* Logical device 4 registers */
+#define IT8712F_DEVID 0x8712
+#define IT8705F_DEVID 0x8705
+#define IT8716F_DEVID 0x8716
+#define IT8718F_DEVID 0x8718
+#define IT8726F_DEVID 0x8726
+#define IT87_ACT_REG  0x30
+#define IT87_BASE_REG 0x60
+
+/* Logical device 7 registers (IT8712F and later) */
+#define IT87_SIO_PINX2_REG	0x2c	/* Pin selection */
+#define IT87_SIO_VID_REG	0xfc	/* VID value */
+
+/* Update battery voltage after every reading if true */
+static int update_vbat;
+
+/* Not all BIOSes properly configure the PWM registers */
+static int fix_pwm_polarity;
+
+/* Many IT87 constants specified below */
+
+/* Length of ISA address segment */
+#define IT87_EXTENT 8
+
+/* Length of ISA address segment for Environmental Controller */
+#define IT87_EC_EXTENT 2
+
+/* Offset of EC registers from ISA base address */
+#define IT87_EC_OFFSET 5
+
+/* Where are the ISA address/data registers relative to the EC base address */
+#define IT87_ADDR_REG_OFFSET 0
+#define IT87_DATA_REG_OFFSET 1
+
+/*----- The IT87 registers -----*/
+
+#define IT87_REG_CONFIG        0x00
+
+#define IT87_REG_ALARM1        0x01
+#define IT87_REG_ALARM2        0x02
+#define IT87_REG_ALARM3        0x03
+
+/* The IT8718F has the VID value in a different register, in Super-I/O
+   configuration space. */
+#define IT87_REG_VID           0x0a
+/* The IT8705F and IT8712F earlier than revision 0x08 use register 0x0b
+   for fan divisors. Later IT8712F revisions must use 16-bit tachometer
+   mode. */
+#define IT87_REG_FAN_DIV       0x0b
+#define IT87_REG_FAN_16BIT     0x0c
+
+/* Monitors: 9 voltage (0 to 7, battery), 3 temp (1 to 3), 3 fan (1 to 3) */
+
+static const u8 IT87_REG_FAN[]		= { 0x0d, 0x0e, 0x0f, 0x80, 0x82 };
+static const u8 IT87_REG_FAN_MIN[]	= { 0x10, 0x11, 0x12, 0x84, 0x86 };
+static const u8 IT87_REG_FANX[]		= { 0x18, 0x19, 0x1a, 0x81, 0x83 };
+static const u8 IT87_REG_FANX_MIN[]	= { 0x1b, 0x1c, 0x1d, 0x85, 0x87 };
+#define IT87_REG_FAN_MAIN_CTRL 0x13
+#define IT87_REG_FAN_CTL       0x14
+#define IT87_REG_PWM(nr)       (0x15 + (nr))
+
+#define IT87_REG_VIN(nr)       (0x20 + (nr))
+#define IT87_REG_TEMP(nr)      (0x29 + (nr))
+
+#define IT87_REG_VIN_MAX(nr)   (0x30 + (nr) * 2)
+#define IT87_REG_VIN_MIN(nr)   (0x31 + (nr) * 2)
+#define IT87_REG_TEMP_HIGH(nr) (0x40 + (nr) * 2)
+#define IT87_REG_TEMP_LOW(nr)  (0x41 + (nr) * 2)
+
+#define IT87_REG_VIN_ENABLE    0x50
+#define IT87_REG_TEMP_ENABLE   0x51
+
+#define IT87_REG_CHIPID        0x58
+
+#define IN_TO_REG(val)  (SENSORS_LIMIT((((val) + 8)/16),0,255))
+#define IN_FROM_REG(val) ((val) * 16)
+
+static inline u8 FAN_TO_REG(long rpm, int div)
+{
+	if (rpm == 0)
+		return 255;
+	rpm = SENSORS_LIMIT(rpm, 1, 1000000);
+	return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1,
+			     254);
+}
+
+static inline u16 FAN16_TO_REG(long rpm)
+{
+	if (rpm == 0)
+		return 0xffff;
+	return SENSORS_LIMIT((1350000 + rpm) / (rpm * 2), 1, 0xfffe);
+}
+
+#define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0:1350000/((val)*(div)))
+/* The divider is fixed to 2 in 16-bit mode */
+#define FAN16_FROM_REG(val) ((val)==0?-1:(val)==0xffff?0:1350000/((val)*2))
+
+#define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)<0?(((val)-500)/1000):\
+					((val)+500)/1000),-128,127))
+#define TEMP_FROM_REG(val) ((val) * 1000)
+
+#define PWM_TO_REG(val)   ((val) >> 1)
+#define PWM_FROM_REG(val) (((val)&0x7f) << 1)
+
+static int DIV_TO_REG(int val)
+{
+	int answer = 0;
+	while (answer < 7 && (val >>= 1))
+		answer++;
+	return answer;
+}
+#define DIV_FROM_REG(val) (1 << (val))
+
+static const unsigned int pwm_freq[8] = {
+	48000000 / 128,
+	24000000 / 128,
+	12000000 / 128,
+	8000000 / 128,
+	6000000 / 128,
+	3000000 / 128,
+	1500000 / 128,
+	750000 / 128,
+};
+
+
+struct it87_sio_data {
+	enum chips type;
+	/* Values read from Super-I/O config space */
+	u8 revision;
+	u8 vid_value;
+	/* Values set based on DMI strings */
+	u8 skip_pwm;
+};
+
+/* For each registered chip, we need to keep some data in memory.
+   The structure is dynamically allocated. */
+struct it87_data {
+	struct device *hwmon_dev;
+	enum chips type;
+	u8 revision;
+
+	unsigned short addr;
+	const char *name;
+	struct mutex update_lock;
+	char valid;		/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+
+	u8 in[9];		/* Register value */
+	u8 in_max[8];		/* Register value */
+	u8 in_min[8];		/* Register value */
+	u8 has_fan;		/* Bitfield, fans enabled */
+	u16 fan[5];		/* Register values, possibly combined */
+	u16 fan_min[5];		/* Register values, possibly combined */
+	s8 temp[3];		/* Register value */
+	s8 temp_high[3];	/* Register value */
+	s8 temp_low[3];		/* Register value */
+	u8 sensor;		/* Register value */
+	u8 fan_div[3];		/* Register encoding, shifted right */
+	u8 vid;			/* Register encoding, combined */
+	u8 vrm;
+	u32 alarms;		/* Register encoding, combined */
+	u8 fan_main_ctrl;	/* Register value */
+	u8 fan_ctl;		/* Register value */
+	u8 manual_pwm_ctl[3];   /* manual PWM value set by user */
+};
+
+static inline int has_16bit_fans(const struct it87_data *data)
+{
+	/* IT8705F Datasheet 0.4.1, 3h == Version G.
+	   IT8712F Datasheet 0.9.1, section 8.3.5 indicates 8h == Version J.
+	   These are the first revisions with 16bit tachometer support. */
+	return (data->type == it87 && data->revision >= 0x03)
+	    || (data->type == it8712 && data->revision >= 0x08)
+	    || data->type == it8716
+	    || data->type == it8718;
+}
+
+static int it87_probe(struct platform_device *pdev);
+static int __devexit it87_remove(struct platform_device *pdev);
+
+static int it87_read_value(struct it87_data *data, u8 reg);
+static void it87_write_value(struct it87_data *data, u8 reg, u8 value);
+static struct it87_data *it87_update_device(struct device *dev);
+static int it87_check_pwm(struct device *dev);
+static void it87_init_device(struct platform_device *pdev);
+
+
+static struct platform_driver it87_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= DRVNAME,
+	},
+	.probe	= it87_probe,
+	.remove	= __devexit_p(it87_remove),
+};
+
+static ssize_t show_in(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+
+	struct it87_data *data = it87_update_device(dev);
+	return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr]));
+}
+
+static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+
+	struct it87_data *data = it87_update_device(dev);
+	return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr]));
+}
+
+static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+
+	struct it87_data *data = it87_update_device(dev);
+	return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr]));
+}
+
+static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+
+	struct it87_data *data = dev_get_drvdata(dev);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_min[nr] = IN_TO_REG(val);
+	it87_write_value(data, IT87_REG_VIN_MIN(nr),
+			data->in_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+
+	struct it87_data *data = dev_get_drvdata(dev);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_max[nr] = IN_TO_REG(val);
+	it87_write_value(data, IT87_REG_VIN_MAX(nr),
+			data->in_max[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define show_in_offset(offset)					\
+static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO,		\
+		show_in, NULL, offset);
+
+#define limit_in_offset(offset)					\
+static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,	\
+		show_in_min, set_in_min, offset);		\
+static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,	\
+		show_in_max, set_in_max, offset);
+
+show_in_offset(0);
+limit_in_offset(0);
+show_in_offset(1);
+limit_in_offset(1);
+show_in_offset(2);
+limit_in_offset(2);
+show_in_offset(3);
+limit_in_offset(3);
+show_in_offset(4);
+limit_in_offset(4);
+show_in_offset(5);
+limit_in_offset(5);
+show_in_offset(6);
+limit_in_offset(6);
+show_in_offset(7);
+limit_in_offset(7);
+show_in_offset(8);
+
+/* 3 temperatures */
+static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+
+	struct it87_data *data = it87_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));
+}
+static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+
+	struct it87_data *data = it87_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr]));
+}
+static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+
+	struct it87_data *data = it87_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_low[nr]));
+}
+static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+
+	struct it87_data *data = dev_get_drvdata(dev);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_high[nr] = TEMP_TO_REG(val);
+	it87_write_value(data, IT87_REG_TEMP_HIGH(nr), data->temp_high[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+
+	struct it87_data *data = dev_get_drvdata(dev);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_low[nr] = TEMP_TO_REG(val);
+	it87_write_value(data, IT87_REG_TEMP_LOW(nr), data->temp_low[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+#define show_temp_offset(offset)					\
+static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO,		\
+		show_temp, NULL, offset - 1);				\
+static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR,	\
+		show_temp_max, set_temp_max, offset - 1);		\
+static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR,	\
+		show_temp_min, set_temp_min, offset - 1);
+
+show_temp_offset(1);
+show_temp_offset(2);
+show_temp_offset(3);
+
+static ssize_t show_sensor(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+
+	struct it87_data *data = it87_update_device(dev);
+	u8 reg = data->sensor; /* In case the value is updated while we use it */
+	
+	if (reg & (1 << nr))
+		return sprintf(buf, "3\n");  /* thermal diode */
+	if (reg & (8 << nr))
+		return sprintf(buf, "4\n");  /* thermistor */
+	return sprintf(buf, "0\n");      /* disabled */
+}
+static ssize_t set_sensor(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+
+	struct it87_data *data = dev_get_drvdata(dev);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+
+	data->sensor &= ~(1 << nr);
+	data->sensor &= ~(8 << nr);
+	if (val == 2) {	/* backwards compatibility */
+		dev_warn(dev, "Sensor type 2 is deprecated, please use 4 "
+			 "instead\n");
+		val = 4;
+	}
+	/* 3 = thermal diode; 4 = thermistor; 0 = disabled */
+	if (val == 3)
+	    data->sensor |= 1 << nr;
+	else if (val == 4)
+	    data->sensor |= 8 << nr;
+	else if (val != 0) {
+		mutex_unlock(&data->update_lock);
+		return -EINVAL;
+	}
+	it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+#define show_sensor_offset(offset)					\
+static SENSOR_DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR,	\
+		show_sensor, set_sensor, offset - 1);
+
+show_sensor_offset(1);
+show_sensor_offset(2);
+show_sensor_offset(3);
+
+/* 3 Fans */
+static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+
+	struct it87_data *data = it87_update_device(dev);
+	return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr], 
+				DIV_FROM_REG(data->fan_div[nr])));
+}
+static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+
+	struct it87_data *data = it87_update_device(dev);
+	return sprintf(buf,"%d\n",
+		FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr])));
+}
+static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+
+	struct it87_data *data = it87_update_device(dev);
+	return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));
+}
+static ssize_t show_pwm_enable(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+
+	struct it87_data *data = it87_update_device(dev);
+	return sprintf(buf,"%d\n", (data->fan_main_ctrl & (1 << nr)) ? 1 : 0);
+}
+static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+
+	struct it87_data *data = it87_update_device(dev);
+	return sprintf(buf,"%d\n", data->manual_pwm_ctl[nr]);
+}
+static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct it87_data *data = it87_update_device(dev);
+	int index = (data->fan_ctl >> 4) & 0x07;
+
+	return sprintf(buf, "%u\n", pwm_freq[index]);
+}
+static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+
+	struct it87_data *data = dev_get_drvdata(dev);
+	int val = simple_strtol(buf, NULL, 10);
+	u8 reg;
+
+	mutex_lock(&data->update_lock);
+	reg = it87_read_value(data, IT87_REG_FAN_DIV);
+	switch (nr) {
+	case 0: data->fan_div[nr] = reg & 0x07; break;
+	case 1: data->fan_div[nr] = (reg >> 3) & 0x07; break;
+	case 2: data->fan_div[nr] = (reg & 0x40) ? 3 : 1; break;
+	}
+
+	data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
+	it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+
+	struct it87_data *data = dev_get_drvdata(dev);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+	int min;
+	u8 old;
+
+	mutex_lock(&data->update_lock);
+	old = it87_read_value(data, IT87_REG_FAN_DIV);
+
+	/* Save fan min limit */
+	min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]));
+
+	switch (nr) {
+	case 0:
+	case 1:
+		data->fan_div[nr] = DIV_TO_REG(val);
+		break;
+	case 2:
+		if (val < 8)
+			data->fan_div[nr] = 1;
+		else
+			data->fan_div[nr] = 3;
+	}
+	val = old & 0x80;
+	val |= (data->fan_div[0] & 0x07);
+	val |= (data->fan_div[1] & 0x07) << 3;
+	if (data->fan_div[2] == 3)
+		val |= 0x1 << 6;
+	it87_write_value(data, IT87_REG_FAN_DIV, val);
+
+	/* Restore fan min limit */
+	data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
+	it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]);
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t set_pwm_enable(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+
+	struct it87_data *data = dev_get_drvdata(dev);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+
+	if (val == 0) {
+		int tmp;
+		/* make sure the fan is on when in on/off mode */
+		tmp = it87_read_value(data, IT87_REG_FAN_CTL);
+		it87_write_value(data, IT87_REG_FAN_CTL, tmp | (1 << nr));
+		/* set on/off mode */
+		data->fan_main_ctrl &= ~(1 << nr);
+		it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl);
+	} else if (val == 1) {
+		/* set SmartGuardian mode */
+		data->fan_main_ctrl |= (1 << nr);
+		it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl);
+		/* set saved pwm value, clear FAN_CTLX PWM mode bit */
+		it87_write_value(data, IT87_REG_PWM(nr), PWM_TO_REG(data->manual_pwm_ctl[nr]));
+	} else {
+		mutex_unlock(&data->update_lock);
+		return -EINVAL;
+	}
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+
+	struct it87_data *data = dev_get_drvdata(dev);
+	int val = simple_strtol(buf, NULL, 10);
+
+	if (val < 0 || val > 255)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	data->manual_pwm_ctl[nr] = val;
+	if (data->fan_main_ctrl & (1 << nr))
+		it87_write_value(data, IT87_REG_PWM(nr), PWM_TO_REG(data->manual_pwm_ctl[nr]));
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t set_pwm_freq(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct it87_data *data = dev_get_drvdata(dev);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+	int i;
+
+	/* Search for the nearest available frequency */
+	for (i = 0; i < 7; i++) {
+		if (val > (pwm_freq[i] + pwm_freq[i+1]) / 2)
+			break;
+	}
+
+	mutex_lock(&data->update_lock);
+	data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL) & 0x8f;
+	data->fan_ctl |= i << 4;
+	it87_write_value(data, IT87_REG_FAN_CTL, data->fan_ctl);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+#define show_fan_offset(offset)					\
+static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO,		\
+		show_fan, NULL, offset - 1);			\
+static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
+		show_fan_min, set_fan_min, offset - 1);		\
+static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
+		show_fan_div, set_fan_div, offset - 1);
+
+show_fan_offset(1);
+show_fan_offset(2);
+show_fan_offset(3);
+
+#define show_pwm_offset(offset)						\
+static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR,	\
+		show_pwm_enable, set_pwm_enable, offset - 1);		\
+static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR,		\
+		show_pwm, set_pwm, offset - 1);				\
+static DEVICE_ATTR(pwm##offset##_freq,					\
+		(offset == 1 ? S_IRUGO | S_IWUSR : S_IRUGO),		\
+		show_pwm_freq, (offset == 1 ? set_pwm_freq : NULL));
+
+show_pwm_offset(1);
+show_pwm_offset(2);
+show_pwm_offset(3);
+
+/* A different set of callbacks for 16-bit fans */
+static ssize_t show_fan16(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct it87_data *data = it87_update_device(dev);
+	return sprintf(buf, "%d\n", FAN16_FROM_REG(data->fan[nr]));
+}
+
+static ssize_t show_fan16_min(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct it87_data *data = it87_update_device(dev);
+	return sprintf(buf, "%d\n", FAN16_FROM_REG(data->fan_min[nr]));
+}
+
+static ssize_t set_fan16_min(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct it87_data *data = dev_get_drvdata(dev);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->fan_min[nr] = FAN16_TO_REG(val);
+	it87_write_value(data, IT87_REG_FAN_MIN[nr],
+			 data->fan_min[nr] & 0xff);
+	it87_write_value(data, IT87_REG_FANX_MIN[nr],
+			 data->fan_min[nr] >> 8);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+/* We want to use the same sysfs file names as 8-bit fans, but we need
+   different variable names, so we have to use SENSOR_ATTR instead of
+   SENSOR_DEVICE_ATTR. */
+#define show_fan16_offset(offset) \
+static struct sensor_device_attribute sensor_dev_attr_fan##offset##_input16 \
+	= SENSOR_ATTR(fan##offset##_input, S_IRUGO,		\
+		show_fan16, NULL, offset - 1);			\
+static struct sensor_device_attribute sensor_dev_attr_fan##offset##_min16 \
+	= SENSOR_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,	\
+		show_fan16_min, set_fan16_min, offset - 1)
+
+show_fan16_offset(1);
+show_fan16_offset(2);
+show_fan16_offset(3);
+show_fan16_offset(4);
+show_fan16_offset(5);
+
+/* Alarms */
+static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct it87_data *data = it87_update_device(dev);
+	return sprintf(buf, "%u\n", data->alarms);
+}
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	struct it87_data *data = it87_update_device(dev);
+	return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
+}
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12);
+static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13);
+static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14);
+static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 16);
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 17);
+static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 18);
+
+static ssize_t
+show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct it87_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%u\n", data->vrm);
+}
+static ssize_t
+store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct it87_data *data = dev_get_drvdata(dev);
+	u32 val;
+
+	val = simple_strtoul(buf, NULL, 10);
+	data->vrm = val;
+
+	return count;
+}
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
+
+static ssize_t
+show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct it87_data *data = it87_update_device(dev);
+	return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
+}
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
+
+static ssize_t show_name(struct device *dev, struct device_attribute
+			 *devattr, char *buf)
+{
+	struct it87_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%s\n", data->name);
+}
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+
+static struct attribute *it87_attributes[] = {
+	&sensor_dev_attr_in0_input.dev_attr.attr,
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in4_input.dev_attr.attr,
+	&sensor_dev_attr_in5_input.dev_attr.attr,
+	&sensor_dev_attr_in6_input.dev_attr.attr,
+	&sensor_dev_attr_in7_input.dev_attr.attr,
+	&sensor_dev_attr_in8_input.dev_attr.attr,
+	&sensor_dev_attr_in0_min.dev_attr.attr,
+	&sensor_dev_attr_in1_min.dev_attr.attr,
+	&sensor_dev_attr_in2_min.dev_attr.attr,
+	&sensor_dev_attr_in3_min.dev_attr.attr,
+	&sensor_dev_attr_in4_min.dev_attr.attr,
+	&sensor_dev_attr_in5_min.dev_attr.attr,
+	&sensor_dev_attr_in6_min.dev_attr.attr,
+	&sensor_dev_attr_in7_min.dev_attr.attr,
+	&sensor_dev_attr_in0_max.dev_attr.attr,
+	&sensor_dev_attr_in1_max.dev_attr.attr,
+	&sensor_dev_attr_in2_max.dev_attr.attr,
+	&sensor_dev_attr_in3_max.dev_attr.attr,
+	&sensor_dev_attr_in4_max.dev_attr.attr,
+	&sensor_dev_attr_in5_max.dev_attr.attr,
+	&sensor_dev_attr_in6_max.dev_attr.attr,
+	&sensor_dev_attr_in7_max.dev_attr.attr,
+	&sensor_dev_attr_in0_alarm.dev_attr.attr,
+	&sensor_dev_attr_in1_alarm.dev_attr.attr,
+	&sensor_dev_attr_in2_alarm.dev_attr.attr,
+	&sensor_dev_attr_in3_alarm.dev_attr.attr,
+	&sensor_dev_attr_in4_alarm.dev_attr.attr,
+	&sensor_dev_attr_in5_alarm.dev_attr.attr,
+	&sensor_dev_attr_in6_alarm.dev_attr.attr,
+	&sensor_dev_attr_in7_alarm.dev_attr.attr,
+
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp3_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp3_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_temp2_min.dev_attr.attr,
+	&sensor_dev_attr_temp3_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_type.dev_attr.attr,
+	&sensor_dev_attr_temp2_type.dev_attr.attr,
+	&sensor_dev_attr_temp3_type.dev_attr.attr,
+	&sensor_dev_attr_temp1_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp3_alarm.dev_attr.attr,
+
+	&dev_attr_alarms.attr,
+	&dev_attr_name.attr,
+	NULL
+};
+
+static const struct attribute_group it87_group = {
+	.attrs = it87_attributes,
+};
+
+static struct attribute *it87_attributes_opt[] = {
+	&sensor_dev_attr_fan1_input16.dev_attr.attr,
+	&sensor_dev_attr_fan1_min16.dev_attr.attr,
+	&sensor_dev_attr_fan2_input16.dev_attr.attr,
+	&sensor_dev_attr_fan2_min16.dev_attr.attr,
+	&sensor_dev_attr_fan3_input16.dev_attr.attr,
+	&sensor_dev_attr_fan3_min16.dev_attr.attr,
+	&sensor_dev_attr_fan4_input16.dev_attr.attr,
+	&sensor_dev_attr_fan4_min16.dev_attr.attr,
+	&sensor_dev_attr_fan5_input16.dev_attr.attr,
+	&sensor_dev_attr_fan5_min16.dev_attr.attr,
+
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_div.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_div.dev_attr.attr,
+	&sensor_dev_attr_fan3_input.dev_attr.attr,
+	&sensor_dev_attr_fan3_min.dev_attr.attr,
+	&sensor_dev_attr_fan3_div.dev_attr.attr,
+
+	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan3_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan4_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan5_alarm.dev_attr.attr,
+
+	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm2_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm3_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm1.dev_attr.attr,
+	&sensor_dev_attr_pwm2.dev_attr.attr,
+	&sensor_dev_attr_pwm3.dev_attr.attr,
+	&dev_attr_pwm1_freq.attr,
+	&dev_attr_pwm2_freq.attr,
+	&dev_attr_pwm3_freq.attr,
+
+	&dev_attr_vrm.attr,
+	&dev_attr_cpu0_vid.attr,
+	NULL
+};
+
+static const struct attribute_group it87_group_opt = {
+	.attrs = it87_attributes_opt,
+};
+
+/* SuperIO detection - will change isa_address if a chip is found */
+static int __init it87_find(unsigned short *address,
+	struct it87_sio_data *sio_data)
+{
+	int err = -ENODEV;
+	u16 chip_type;
+	const char *board_vendor, *board_name;
+
+	superio_enter();
+	chip_type = force_id ? force_id : superio_inw(DEVID);
+
+	switch (chip_type) {
+	case IT8705F_DEVID:
+		sio_data->type = it87;
+		break;
+	case IT8712F_DEVID:
+		sio_data->type = it8712;
+		break;
+	case IT8716F_DEVID:
+	case IT8726F_DEVID:
+		sio_data->type = it8716;
+		break;
+	case IT8718F_DEVID:
+		sio_data->type = it8718;
+		break;
+	case 0xffff:	/* No device at all */
+		goto exit;
+	default:
+		pr_debug(DRVNAME ": Unsupported chip (DEVID=0x%x)\n",
+			 chip_type);
+		goto exit;
+	}
+
+	superio_select(PME);
+	if (!(superio_inb(IT87_ACT_REG) & 0x01)) {
+		pr_info("it87: Device not activated, skipping\n");
+		goto exit;
+	}
+
+	*address = superio_inw(IT87_BASE_REG) & ~(IT87_EXTENT - 1);
+	if (*address == 0) {
+		pr_info("it87: Base address not set, skipping\n");
+		goto exit;
+	}
+
+	err = 0;
+	sio_data->revision = superio_inb(DEVREV) & 0x0f;
+	pr_info("it87: Found IT%04xF chip at 0x%x, revision %d\n",
+		chip_type, *address, sio_data->revision);
+
+	/* Read GPIO config and VID value from LDN 7 (GPIO) */
+	if (chip_type != IT8705F_DEVID) {
+		int reg;
+
+		superio_select(GPIO);
+		if (chip_type == it8718)
+			sio_data->vid_value = superio_inb(IT87_SIO_VID_REG);
+
+		reg = superio_inb(IT87_SIO_PINX2_REG);
+		if (reg & (1 << 0))
+			pr_info("it87: in3 is VCC (+5V)\n");
+		if (reg & (1 << 1))
+			pr_info("it87: in7 is VCCH (+5V Stand-By)\n");
+	}
+
+	/* Disable specific features based on DMI strings */
+	board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
+	board_name = dmi_get_system_info(DMI_BOARD_NAME);
+	if (board_vendor && board_name) {
+		if (strcmp(board_vendor, "nVIDIA") == 0
+		 && strcmp(board_name, "FN68PT") == 0) {
+			/* On the Shuttle SN68PT, FAN_CTL2 is apparently not
+			   connected to a fan, but to something else. One user
+			   has reported instant system power-off when changing
+			   the PWM2 duty cycle, so we disable it.
+			   I use the board name string as the trigger in case
+			   the same board is ever used in other systems. */
+			pr_info("it87: Disabling pwm2 due to "
+				"hardware constraints\n");
+			sio_data->skip_pwm = (1 << 1);
+		}
+	}
+
+exit:
+	superio_exit();
+	return err;
+}
+
+static int __devinit it87_probe(struct platform_device *pdev)
+{
+	struct it87_data *data;
+	struct resource *res;
+	struct device *dev = &pdev->dev;
+	struct it87_sio_data *sio_data = dev->platform_data;
+	int err = 0;
+	int enable_pwm_interface;
+	static const char *names[] = {
+		"it87",
+		"it8712",
+		"it8716",
+		"it8718",
+	};
+
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	if (!request_region(res->start, IT87_EC_EXTENT, DRVNAME)) {
+		dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
+			(unsigned long)res->start,
+			(unsigned long)(res->start + IT87_EC_EXTENT - 1));
+		err = -EBUSY;
+		goto ERROR0;
+	}
+
+	if (!(data = kzalloc(sizeof(struct it87_data), GFP_KERNEL))) {
+		err = -ENOMEM;
+		goto ERROR1;
+	}
+
+	data->addr = res->start;
+	data->type = sio_data->type;
+	data->revision = sio_data->revision;
+	data->name = names[sio_data->type];
+
+	/* Now, we do the remaining detection. */
+	if ((it87_read_value(data, IT87_REG_CONFIG) & 0x80)
+	 || it87_read_value(data, IT87_REG_CHIPID) != 0x90) {
+		err = -ENODEV;
+		goto ERROR2;
+	}
+
+	platform_set_drvdata(pdev, data);
+
+	mutex_init(&data->update_lock);
+
+	/* Check PWM configuration */
+	enable_pwm_interface = it87_check_pwm(dev);
+
+	/* Initialize the IT87 chip */
+	it87_init_device(pdev);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&dev->kobj, &it87_group)))
+		goto ERROR2;
+
+	/* Do not create fan files for disabled fans */
+	if (has_16bit_fans(data)) {
+		/* 16-bit tachometers */
+		if (data->has_fan & (1 << 0)) {
+			if ((err = device_create_file(dev,
+			     &sensor_dev_attr_fan1_input16.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_fan1_min16.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_fan1_alarm.dev_attr)))
+				goto ERROR4;
+		}
+		if (data->has_fan & (1 << 1)) {
+			if ((err = device_create_file(dev,
+			     &sensor_dev_attr_fan2_input16.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_fan2_min16.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_fan2_alarm.dev_attr)))
+				goto ERROR4;
+		}
+		if (data->has_fan & (1 << 2)) {
+			if ((err = device_create_file(dev,
+			     &sensor_dev_attr_fan3_input16.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_fan3_min16.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_fan3_alarm.dev_attr)))
+				goto ERROR4;
+		}
+		if (data->has_fan & (1 << 3)) {
+			if ((err = device_create_file(dev,
+			     &sensor_dev_attr_fan4_input16.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_fan4_min16.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_fan4_alarm.dev_attr)))
+				goto ERROR4;
+		}
+		if (data->has_fan & (1 << 4)) {
+			if ((err = device_create_file(dev,
+			     &sensor_dev_attr_fan5_input16.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_fan5_min16.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_fan5_alarm.dev_attr)))
+				goto ERROR4;
+		}
+	} else {
+		/* 8-bit tachometers with clock divider */
+		if (data->has_fan & (1 << 0)) {
+			if ((err = device_create_file(dev,
+			     &sensor_dev_attr_fan1_input.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_fan1_min.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_fan1_div.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_fan1_alarm.dev_attr)))
+				goto ERROR4;
+		}
+		if (data->has_fan & (1 << 1)) {
+			if ((err = device_create_file(dev,
+			     &sensor_dev_attr_fan2_input.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_fan2_min.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_fan2_div.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_fan2_alarm.dev_attr)))
+				goto ERROR4;
+		}
+		if (data->has_fan & (1 << 2)) {
+			if ((err = device_create_file(dev,
+			     &sensor_dev_attr_fan3_input.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_fan3_min.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_fan3_div.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_fan3_alarm.dev_attr)))
+				goto ERROR4;
+		}
+	}
+
+	if (enable_pwm_interface) {
+		if (!(sio_data->skip_pwm & (1 << 0))) {
+			if ((err = device_create_file(dev,
+			     &sensor_dev_attr_pwm1_enable.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_pwm1.dev_attr))
+			 || (err = device_create_file(dev,
+			     &dev_attr_pwm1_freq)))
+				goto ERROR4;
+		}
+		if (!(sio_data->skip_pwm & (1 << 1))) {
+			if ((err = device_create_file(dev,
+			     &sensor_dev_attr_pwm2_enable.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_pwm2.dev_attr))
+			 || (err = device_create_file(dev,
+			     &dev_attr_pwm2_freq)))
+				goto ERROR4;
+		}
+		if (!(sio_data->skip_pwm & (1 << 2))) {
+			if ((err = device_create_file(dev,
+			     &sensor_dev_attr_pwm3_enable.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_pwm3.dev_attr))
+			 || (err = device_create_file(dev,
+			     &dev_attr_pwm3_freq)))
+				goto ERROR4;
+		}
+	}
+
+	if (data->type == it8712 || data->type == it8716
+	 || data->type == it8718) {
+		data->vrm = vid_which_vrm();
+		/* VID reading from Super-I/O config space if available */
+		data->vid = sio_data->vid_value;
+		if ((err = device_create_file(dev,
+		     &dev_attr_vrm))
+		 || (err = device_create_file(dev,
+		     &dev_attr_cpu0_vid)))
+			goto ERROR4;
+	}
+
+	data->hwmon_dev = hwmon_device_register(dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto ERROR4;
+	}
+
+	return 0;
+
+ERROR4:
+	sysfs_remove_group(&dev->kobj, &it87_group);
+	sysfs_remove_group(&dev->kobj, &it87_group_opt);
+ERROR2:
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+ERROR1:
+	release_region(res->start, IT87_EC_EXTENT);
+ERROR0:
+	return err;
+}
+
+static int __devexit it87_remove(struct platform_device *pdev)
+{
+	struct it87_data *data = platform_get_drvdata(pdev);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&pdev->dev.kobj, &it87_group);
+	sysfs_remove_group(&pdev->dev.kobj, &it87_group_opt);
+
+	release_region(data->addr, IT87_EC_EXTENT);
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+
+	return 0;
+}
+
+/* Must be called with data->update_lock held, except during initialization.
+   We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks,
+   would slow down the IT87 access and should not be necessary. */
+static int it87_read_value(struct it87_data *data, u8 reg)
+{
+	outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET);
+	return inb_p(data->addr + IT87_DATA_REG_OFFSET);
+}
+
+/* Must be called with data->update_lock held, except during initialization.
+   We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks,
+   would slow down the IT87 access and should not be necessary. */
+static void it87_write_value(struct it87_data *data, u8 reg, u8 value)
+{
+	outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET);
+	outb_p(value, data->addr + IT87_DATA_REG_OFFSET);
+}
+
+/* Return 1 if and only if the PWM interface is safe to use */
+static int __devinit it87_check_pwm(struct device *dev)
+{
+	struct it87_data *data = dev_get_drvdata(dev);
+	/* Some BIOSes fail to correctly configure the IT87 fans. All fans off
+	 * and polarity set to active low is sign that this is the case so we
+	 * disable pwm control to protect the user. */
+	int tmp = it87_read_value(data, IT87_REG_FAN_CTL);
+	if ((tmp & 0x87) == 0) {
+		if (fix_pwm_polarity) {
+			/* The user asks us to attempt a chip reconfiguration.
+			 * This means switching to active high polarity and
+			 * inverting all fan speed values. */
+			int i;
+			u8 pwm[3];
+
+			for (i = 0; i < 3; i++)
+				pwm[i] = it87_read_value(data,
+							 IT87_REG_PWM(i));
+
+			/* If any fan is in automatic pwm mode, the polarity
+			 * might be correct, as suspicious as it seems, so we
+			 * better don't change anything (but still disable the
+			 * PWM interface). */
+			if (!((pwm[0] | pwm[1] | pwm[2]) & 0x80)) {
+				dev_info(dev, "Reconfiguring PWM to "
+					 "active high polarity\n");
+				it87_write_value(data, IT87_REG_FAN_CTL,
+						 tmp | 0x87);
+				for (i = 0; i < 3; i++)
+					it87_write_value(data,
+							 IT87_REG_PWM(i),
+							 0x7f & ~pwm[i]);
+				return 1;
+			}
+
+			dev_info(dev, "PWM configuration is "
+				 "too broken to be fixed\n");
+		}
+
+		dev_info(dev, "Detected broken BIOS "
+			 "defaults, disabling PWM interface\n");
+		return 0;
+	} else if (fix_pwm_polarity) {
+		dev_info(dev, "PWM configuration looks "
+			 "sane, won't touch\n");
+	}
+
+	return 1;
+}
+
+/* Called when we have found a new IT87. */
+static void __devinit it87_init_device(struct platform_device *pdev)
+{
+	struct it87_data *data = platform_get_drvdata(pdev);
+	int tmp, i;
+
+	/* initialize to sane defaults:
+	 * - if the chip is in manual pwm mode, this will be overwritten with
+	 *   the actual settings on the chip (so in this case, initialization
+	 *   is not needed)
+	 * - if in automatic or on/off mode, we could switch to manual mode,
+	 *   read the registers and set manual_pwm_ctl accordingly, but currently
+	 *   this is not implemented, so we initialize to something sane */
+	for (i = 0; i < 3; i++) {
+		data->manual_pwm_ctl[i] = 0xff;
+	}
+
+	/* Some chips seem to have default value 0xff for all limit
+	 * registers. For low voltage limits it makes no sense and triggers
+	 * alarms, so change to 0 instead. For high temperature limits, it
+	 * means -1 degree C, which surprisingly doesn't trigger an alarm,
+	 * but is still confusing, so change to 127 degrees C. */
+	for (i = 0; i < 8; i++) {
+		tmp = it87_read_value(data, IT87_REG_VIN_MIN(i));
+		if (tmp == 0xff)
+			it87_write_value(data, IT87_REG_VIN_MIN(i), 0);
+	}
+	for (i = 0; i < 3; i++) {
+		tmp = it87_read_value(data, IT87_REG_TEMP_HIGH(i));
+		if (tmp == 0xff)
+			it87_write_value(data, IT87_REG_TEMP_HIGH(i), 127);
+	}
+
+	/* Check if temperature channnels are reset manually or by some reason */
+	tmp = it87_read_value(data, IT87_REG_TEMP_ENABLE);
+	if ((tmp & 0x3f) == 0) {
+		/* Temp1,Temp3=thermistor; Temp2=thermal diode */
+		tmp = (tmp & 0xc0) | 0x2a;
+		it87_write_value(data, IT87_REG_TEMP_ENABLE, tmp);
+	}
+	data->sensor = tmp;
+
+	/* Check if voltage monitors are reset manually or by some reason */
+	tmp = it87_read_value(data, IT87_REG_VIN_ENABLE);
+	if ((tmp & 0xff) == 0) {
+		/* Enable all voltage monitors */
+		it87_write_value(data, IT87_REG_VIN_ENABLE, 0xff);
+	}
+
+	/* Check if tachometers are reset manually or by some reason */
+	data->fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL);
+	if ((data->fan_main_ctrl & 0x70) == 0) {
+		/* Enable all fan tachometers */
+		data->fan_main_ctrl |= 0x70;
+		it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl);
+	}
+	data->has_fan = (data->fan_main_ctrl >> 4) & 0x07;
+
+	/* Set tachometers to 16-bit mode if needed */
+	if (has_16bit_fans(data)) {
+		tmp = it87_read_value(data, IT87_REG_FAN_16BIT);
+		if (~tmp & 0x07 & data->has_fan) {
+			dev_dbg(&pdev->dev,
+				"Setting fan1-3 to 16-bit mode\n");
+			it87_write_value(data, IT87_REG_FAN_16BIT,
+					 tmp | 0x07);
+		}
+		/* IT8705F only supports three fans. */
+		if (data->type != it87) {
+			if (tmp & (1 << 4))
+				data->has_fan |= (1 << 3); /* fan4 enabled */
+			if (tmp & (1 << 5))
+				data->has_fan |= (1 << 4); /* fan5 enabled */
+		}
+	}
+
+	/* Set current fan mode registers and the default settings for the
+	 * other mode registers */
+	for (i = 0; i < 3; i++) {
+		if (data->fan_main_ctrl & (1 << i)) {
+			/* pwm mode */
+			tmp = it87_read_value(data, IT87_REG_PWM(i));
+			if (tmp & 0x80) {
+				/* automatic pwm - not yet implemented, but
+				 * leave the settings made by the BIOS alone
+				 * until a change is requested via the sysfs
+				 * interface */
+			} else {
+				/* manual pwm */
+				data->manual_pwm_ctl[i] = PWM_FROM_REG(tmp);
+			}
+		}
+ 	}
+
+	/* Start monitoring */
+	it87_write_value(data, IT87_REG_CONFIG,
+			 (it87_read_value(data, IT87_REG_CONFIG) & 0x36)
+			 | (update_vbat ? 0x41 : 0x01));
+}
+
+static struct it87_data *it87_update_device(struct device *dev)
+{
+	struct it87_data *data = dev_get_drvdata(dev);
+	int i;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	    || !data->valid) {
+
+		if (update_vbat) {
+			/* Cleared after each update, so reenable.  Value
+		 	  returned by this read will be previous value */	
+			it87_write_value(data, IT87_REG_CONFIG,
+			   it87_read_value(data, IT87_REG_CONFIG) | 0x40);
+		}
+		for (i = 0; i <= 7; i++) {
+			data->in[i] =
+			    it87_read_value(data, IT87_REG_VIN(i));
+			data->in_min[i] =
+			    it87_read_value(data, IT87_REG_VIN_MIN(i));
+			data->in_max[i] =
+			    it87_read_value(data, IT87_REG_VIN_MAX(i));
+		}
+		/* in8 (battery) has no limit registers */
+		data->in[8] =
+		    it87_read_value(data, IT87_REG_VIN(8));
+
+		for (i = 0; i < 5; i++) {
+			/* Skip disabled fans */
+			if (!(data->has_fan & (1 << i)))
+				continue;
+
+			data->fan_min[i] =
+			    it87_read_value(data, IT87_REG_FAN_MIN[i]);
+			data->fan[i] = it87_read_value(data,
+				       IT87_REG_FAN[i]);
+			/* Add high byte if in 16-bit mode */
+			if (has_16bit_fans(data)) {
+				data->fan[i] |= it87_read_value(data,
+						IT87_REG_FANX[i]) << 8;
+				data->fan_min[i] |= it87_read_value(data,
+						IT87_REG_FANX_MIN[i]) << 8;
+			}
+		}
+		for (i = 0; i < 3; i++) {
+			data->temp[i] =
+			    it87_read_value(data, IT87_REG_TEMP(i));
+			data->temp_high[i] =
+			    it87_read_value(data, IT87_REG_TEMP_HIGH(i));
+			data->temp_low[i] =
+			    it87_read_value(data, IT87_REG_TEMP_LOW(i));
+		}
+
+		/* Newer chips don't have clock dividers */
+		if ((data->has_fan & 0x07) && !has_16bit_fans(data)) {
+			i = it87_read_value(data, IT87_REG_FAN_DIV);
+			data->fan_div[0] = i & 0x07;
+			data->fan_div[1] = (i >> 3) & 0x07;
+			data->fan_div[2] = (i & 0x40) ? 3 : 1;
+		}
+
+		data->alarms =
+			it87_read_value(data, IT87_REG_ALARM1) |
+			(it87_read_value(data, IT87_REG_ALARM2) << 8) |
+			(it87_read_value(data, IT87_REG_ALARM3) << 16);
+		data->fan_main_ctrl = it87_read_value(data,
+				IT87_REG_FAN_MAIN_CTRL);
+		data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL);
+
+		data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE);
+		/* The 8705 does not have VID capability.
+		   The 8718 does not use IT87_REG_VID for the same purpose. */
+		if (data->type == it8712 || data->type == it8716) {
+			data->vid = it87_read_value(data, IT87_REG_VID);
+			/* The older IT8712F revisions had only 5 VID pins,
+			   but we assume it is always safe to read 6 bits. */
+			data->vid &= 0x3f;
+		}
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init it87_device_add(unsigned short address,
+				  const struct it87_sio_data *sio_data)
+{
+	struct resource res = {
+		.start	= address + IT87_EC_OFFSET,
+		.end	= address + IT87_EC_OFFSET + IT87_EC_EXTENT - 1,
+		.name	= DRVNAME,
+		.flags	= IORESOURCE_IO,
+	};
+	int err;
+
+	pdev = platform_device_alloc(DRVNAME, address);
+	if (!pdev) {
+		err = -ENOMEM;
+		printk(KERN_ERR DRVNAME ": Device allocation failed\n");
+		goto exit;
+	}
+
+	err = platform_device_add_resources(pdev, &res, 1);
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Device resource addition failed "
+		       "(%d)\n", err);
+		goto exit_device_put;
+	}
+
+	err = platform_device_add_data(pdev, sio_data,
+				       sizeof(struct it87_sio_data));
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Platform data allocation failed\n");
+		goto exit_device_put;
+	}
+
+	err = platform_device_add(pdev);
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",
+		       err);
+		goto exit_device_put;
+	}
+
+	return 0;
+
+exit_device_put:
+	platform_device_put(pdev);
+exit:
+	return err;
+}
+
+static int __init sm_it87_init(void)
+{
+	int err;
+	unsigned short isa_address=0;
+	struct it87_sio_data sio_data;
+
+	memset(&sio_data, 0, sizeof(struct it87_sio_data));
+	err = it87_find(&isa_address, &sio_data);
+	if (err)
+		return err;
+	err = platform_driver_register(&it87_driver);
+	if (err)
+		return err;
+
+	err = it87_device_add(isa_address, &sio_data);
+	if (err){
+		platform_driver_unregister(&it87_driver);
+		return err;
+	}
+
+	return 0;
+}
+
+static void __exit sm_it87_exit(void)
+{
+	platform_device_unregister(pdev);
+	platform_driver_unregister(&it87_driver);
+}
+
+
+MODULE_AUTHOR("Chris Gauthron, "
+	      "Jean Delvare <khali@linux-fr.org>");
+MODULE_DESCRIPTION("IT8705F/8712F/8716F/8718F/8726F, SiS950 driver");
+module_param(update_vbat, bool, 0);
+MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value");
+module_param(fix_pwm_polarity, bool, 0);
+MODULE_PARM_DESC(fix_pwm_polarity, "Force PWM polarity to active high (DANGEROUS)");
+MODULE_LICENSE("GPL");
+
+module_init(sm_it87_init);
+module_exit(sm_it87_exit);
diff --git a/drivers/hwmon/k8temp.c b/drivers/hwmon/k8temp.c
new file mode 100644
index 0000000..bd2bde0
--- /dev/null
+++ b/drivers/hwmon/k8temp.c
@@ -0,0 +1,294 @@
+/*
+ * k8temp.c - Linux kernel module for hardware monitoring
+ *
+ * Copyright (C) 2006 Rudolf Marek <r.marek@assembler.cz>
+ *
+ * Inspired from the w83785 and amd756 drivers.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/pci.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+#define TEMP_FROM_REG(val)	(((((val) >> 16) & 0xff) - 49) * 1000)
+#define REG_TEMP	0xe4
+#define SEL_PLACE	0x40
+#define SEL_CORE	0x04
+
+struct k8temp_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	const char *name;
+	char valid;		/* zero until following fields are valid */
+	unsigned long last_updated;	/* in jiffies */
+
+	/* registers values */
+	u8 sensorsp;		/* sensor presence bits - SEL_CORE & SEL_PLACE */
+	u32 temp[2][2];		/* core, place */
+};
+
+static struct k8temp_data *k8temp_update_device(struct device *dev)
+{
+	struct k8temp_data *data = dev_get_drvdata(dev);
+	struct pci_dev *pdev = to_pci_dev(dev);
+	u8 tmp;
+
+	mutex_lock(&data->update_lock);
+
+	if (!data->valid
+	    || time_after(jiffies, data->last_updated + HZ)) {
+		pci_read_config_byte(pdev, REG_TEMP, &tmp);
+		tmp &= ~(SEL_PLACE | SEL_CORE);		/* Select sensor 0, core0 */
+		pci_write_config_byte(pdev, REG_TEMP, tmp);
+		pci_read_config_dword(pdev, REG_TEMP, &data->temp[0][0]);
+
+		if (data->sensorsp & SEL_PLACE) {
+			tmp |= SEL_PLACE;	/* Select sensor 1, core0 */
+			pci_write_config_byte(pdev, REG_TEMP, tmp);
+			pci_read_config_dword(pdev, REG_TEMP,
+					      &data->temp[0][1]);
+		}
+
+		if (data->sensorsp & SEL_CORE) {
+			tmp &= ~SEL_PLACE;	/* Select sensor 0, core1 */
+			tmp |= SEL_CORE;
+			pci_write_config_byte(pdev, REG_TEMP, tmp);
+			pci_read_config_dword(pdev, REG_TEMP,
+					      &data->temp[1][0]);
+
+			if (data->sensorsp & SEL_PLACE) {
+				tmp |= SEL_PLACE;	/* Select sensor 1, core1 */
+				pci_write_config_byte(pdev, REG_TEMP, tmp);
+				pci_read_config_dword(pdev, REG_TEMP,
+						      &data->temp[1][1]);
+			}
+		}
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+	return data;
+}
+
+/*
+ * Sysfs stuff
+ */
+
+static ssize_t show_name(struct device *dev, struct device_attribute
+			 *devattr, char *buf)
+{
+	struct k8temp_data *data = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%s\n", data->name);
+}
+
+
+static ssize_t show_temp(struct device *dev,
+			 struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute_2 *attr =
+	    to_sensor_dev_attr_2(devattr);
+	int core = attr->nr;
+	int place = attr->index;
+	struct k8temp_data *data = k8temp_update_device(dev);
+
+	return sprintf(buf, "%d\n",
+		       TEMP_FROM_REG(data->temp[core][place]));
+}
+
+/* core, place */
+
+static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0);
+static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 0, 1);
+static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 1, 0);
+static SENSOR_DEVICE_ATTR_2(temp4_input, S_IRUGO, show_temp, NULL, 1, 1);
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+
+static struct pci_device_id k8temp_ids[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_K8_NB_MISC) },
+	{ 0 },
+};
+
+MODULE_DEVICE_TABLE(pci, k8temp_ids);
+
+static int __devinit k8temp_probe(struct pci_dev *pdev,
+				  const struct pci_device_id *id)
+{
+	int err;
+	u8 scfg;
+	u32 temp;
+	struct k8temp_data *data;
+	u32 cpuid = cpuid_eax(1);
+
+	/* this feature should be available since SH-C0 core */
+	if ((cpuid == 0xf40) || (cpuid == 0xf50) || (cpuid == 0xf51)) {
+		err = -ENODEV;
+		goto exit;
+	}
+
+	if (!(data = kzalloc(sizeof(struct k8temp_data), GFP_KERNEL))) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	pci_read_config_byte(pdev, REG_TEMP, &scfg);
+	scfg &= ~(SEL_PLACE | SEL_CORE);		/* Select sensor 0, core0 */
+	pci_write_config_byte(pdev, REG_TEMP, scfg);
+	pci_read_config_byte(pdev, REG_TEMP, &scfg);
+
+	if (scfg & (SEL_PLACE | SEL_CORE)) {
+		dev_err(&pdev->dev, "Configuration bit(s) stuck at 1!\n");
+		err = -ENODEV;
+		goto exit_free;
+	}
+
+	scfg |= (SEL_PLACE | SEL_CORE);
+	pci_write_config_byte(pdev, REG_TEMP, scfg);
+
+	/* now we know if we can change core and/or sensor */
+	pci_read_config_byte(pdev, REG_TEMP, &data->sensorsp);
+
+	if (data->sensorsp & SEL_PLACE) {
+		scfg &= ~SEL_CORE;	/* Select sensor 1, core0 */
+		pci_write_config_byte(pdev, REG_TEMP, scfg);
+		pci_read_config_dword(pdev, REG_TEMP, &temp);
+		scfg |= SEL_CORE;	/* prepare for next selection */
+		if (!((temp >> 16) & 0xff))	/* if temp is 0 -49C is not likely */
+			data->sensorsp &= ~SEL_PLACE;
+	}
+
+	if (data->sensorsp & SEL_CORE) {
+		scfg &= ~SEL_PLACE;	/* Select sensor 0, core1 */
+		pci_write_config_byte(pdev, REG_TEMP, scfg);
+		pci_read_config_dword(pdev, REG_TEMP, &temp);
+		if (!((temp >> 16) & 0xff))	/* if temp is 0 -49C is not likely */
+			data->sensorsp &= ~SEL_CORE;
+	}
+
+	data->name = "k8temp";
+	mutex_init(&data->update_lock);
+	dev_set_drvdata(&pdev->dev, data);
+
+	/* Register sysfs hooks */
+	err = device_create_file(&pdev->dev,
+			   &sensor_dev_attr_temp1_input.dev_attr);
+	if (err)
+		goto exit_remove;
+
+	/* sensor can be changed and reports something */
+	if (data->sensorsp & SEL_PLACE) {
+		err = device_create_file(&pdev->dev,
+				   &sensor_dev_attr_temp2_input.dev_attr);
+		if (err)
+			goto exit_remove;
+	}
+
+	/* core can be changed and reports something */
+	if (data->sensorsp & SEL_CORE) {
+		err = device_create_file(&pdev->dev,
+				   &sensor_dev_attr_temp3_input.dev_attr);
+		if (err)
+			goto exit_remove;
+		if (data->sensorsp & SEL_PLACE)
+			err = device_create_file(&pdev->dev,
+					   &sensor_dev_attr_temp4_input.
+					   dev_attr);
+			if (err)
+				goto exit_remove;
+	}
+
+	err = device_create_file(&pdev->dev, &dev_attr_name);
+	if (err)
+		goto exit_remove;
+
+	data->hwmon_dev = hwmon_device_register(&pdev->dev);
+
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	return 0;
+
+exit_remove:
+	device_remove_file(&pdev->dev,
+			   &sensor_dev_attr_temp1_input.dev_attr);
+	device_remove_file(&pdev->dev,
+			   &sensor_dev_attr_temp2_input.dev_attr);
+	device_remove_file(&pdev->dev,
+			   &sensor_dev_attr_temp3_input.dev_attr);
+	device_remove_file(&pdev->dev,
+			   &sensor_dev_attr_temp4_input.dev_attr);
+	device_remove_file(&pdev->dev, &dev_attr_name);
+exit_free:
+	dev_set_drvdata(&pdev->dev, NULL);
+	kfree(data);
+exit:
+	return err;
+}
+
+static void __devexit k8temp_remove(struct pci_dev *pdev)
+{
+	struct k8temp_data *data = dev_get_drvdata(&pdev->dev);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	device_remove_file(&pdev->dev,
+			   &sensor_dev_attr_temp1_input.dev_attr);
+	device_remove_file(&pdev->dev,
+			   &sensor_dev_attr_temp2_input.dev_attr);
+	device_remove_file(&pdev->dev,
+			   &sensor_dev_attr_temp3_input.dev_attr);
+	device_remove_file(&pdev->dev,
+			   &sensor_dev_attr_temp4_input.dev_attr);
+	device_remove_file(&pdev->dev, &dev_attr_name);
+	dev_set_drvdata(&pdev->dev, NULL);
+	kfree(data);
+}
+
+static struct pci_driver k8temp_driver = {
+	.name = "k8temp",
+	.id_table = k8temp_ids,
+	.probe = k8temp_probe,
+	.remove = __devexit_p(k8temp_remove),
+};
+
+static int __init k8temp_init(void)
+{
+	return pci_register_driver(&k8temp_driver);
+}
+
+static void __exit k8temp_exit(void)
+{
+	pci_unregister_driver(&k8temp_driver);
+}
+
+MODULE_AUTHOR("Rudolf Marek <r.marek@assembler.cz>");
+MODULE_DESCRIPTION("AMD K8 core temperature monitor");
+MODULE_LICENSE("GPL");
+
+module_init(k8temp_init)
+module_exit(k8temp_exit)
diff --git a/drivers/hwmon/lis3lv02d.c b/drivers/hwmon/lis3lv02d.c
new file mode 100644
index 0000000..c002144
--- /dev/null
+++ b/drivers/hwmon/lis3lv02d.c
@@ -0,0 +1,581 @@
+/*
+ *  lis3lv02d.c - ST LIS3LV02DL accelerometer driver
+ *
+ *  Copyright (C) 2007-2008 Yan Burman
+ *  Copyright (C) 2008 Eric Piel
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/dmi.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/kthread.h>
+#include <linux/semaphore.h>
+#include <linux/delay.h>
+#include <linux/wait.h>
+#include <linux/poll.h>
+#include <linux/freezer.h>
+#include <linux/uaccess.h>
+#include <acpi/acpi_drivers.h>
+#include <asm/atomic.h>
+#include "lis3lv02d.h"
+
+#define DRIVER_NAME     "lis3lv02d"
+#define ACPI_MDPS_CLASS "accelerometer"
+
+/* joystick device poll interval in milliseconds */
+#define MDPS_POLL_INTERVAL 50
+/*
+ * The sensor can also generate interrupts (DRDY) but it's pretty pointless
+ * because their are generated even if the data do not change. So it's better
+ * to keep the interrupt for the free-fall event. The values are updated at
+ * 40Hz (at the lowest frequency), but as it can be pretty time consuming on
+ * some low processor, we poll the sensor only at 20Hz... enough for the
+ * joystick.
+ */
+
+/* Maximum value our axis may get for the input device (signed 12 bits) */
+#define MDPS_MAX_VAL 2048
+
+struct axis_conversion {
+	s8	x;
+	s8	y;
+	s8	z;
+};
+
+struct acpi_lis3lv02d {
+	struct acpi_device	*device;   /* The ACPI device */
+	struct input_dev	*idev;     /* input device */
+	struct task_struct	*kthread;  /* kthread for input */
+	struct mutex            lock;
+	struct platform_device	*pdev;     /* platform device */
+	atomic_t		count;     /* interrupt count after last read */
+	int			xcalib;    /* calibrated null value for x */
+	int			ycalib;    /* calibrated null value for y */
+	int			zcalib;    /* calibrated null value for z */
+	unsigned char		is_on;     /* whether the device is on or off */
+	unsigned char		usage;     /* usage counter */
+	struct axis_conversion	ac;        /* hw -> logical axis */
+};
+
+static struct acpi_lis3lv02d adev;
+
+static int lis3lv02d_remove_fs(void);
+static int lis3lv02d_add_fs(struct acpi_device *device);
+
+/* For automatic insertion of the module */
+static struct acpi_device_id lis3lv02d_device_ids[] = {
+	{"HPQ0004", 0}, /* HP Mobile Data Protection System PNP */
+	{"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, lis3lv02d_device_ids);
+
+/**
+ * lis3lv02d_acpi_init - ACPI _INI method: initialize the device.
+ * @handle: the handle of the device
+ *
+ * Returns AE_OK on success.
+ */
+static inline acpi_status lis3lv02d_acpi_init(acpi_handle handle)
+{
+	return acpi_evaluate_object(handle, METHOD_NAME__INI, NULL, NULL);
+}
+
+/**
+ * lis3lv02d_acpi_read - ACPI ALRD method: read a register
+ * @handle: the handle of the device
+ * @reg:    the register to read
+ * @ret:    result of the operation
+ *
+ * Returns AE_OK on success.
+ */
+static acpi_status lis3lv02d_acpi_read(acpi_handle handle, int reg, u8 *ret)
+{
+	union acpi_object arg0 = { ACPI_TYPE_INTEGER };
+	struct acpi_object_list args = { 1, &arg0 };
+	unsigned long long lret;
+	acpi_status status;
+
+	arg0.integer.value = reg;
+
+	status = acpi_evaluate_integer(handle, "ALRD", &args, &lret);
+	*ret = lret;
+	return status;
+}
+
+/**
+ * lis3lv02d_acpi_write - ACPI ALWR method: write to a register
+ * @handle: the handle of the device
+ * @reg:    the register to write to
+ * @val:    the value to write
+ *
+ * Returns AE_OK on success.
+ */
+static acpi_status lis3lv02d_acpi_write(acpi_handle handle, int reg, u8 val)
+{
+	unsigned long long ret; /* Not used when writting */
+	union acpi_object in_obj[2];
+	struct acpi_object_list args = { 2, in_obj };
+
+	in_obj[0].type          = ACPI_TYPE_INTEGER;
+	in_obj[0].integer.value = reg;
+	in_obj[1].type          = ACPI_TYPE_INTEGER;
+	in_obj[1].integer.value = val;
+
+	return acpi_evaluate_integer(handle, "ALWR", &args, &ret);
+}
+
+static s16 lis3lv02d_read_16(acpi_handle handle, int reg)
+{
+	u8 lo, hi;
+
+	lis3lv02d_acpi_read(handle, reg, &lo);
+	lis3lv02d_acpi_read(handle, reg + 1, &hi);
+	/* In "12 bit right justified" mode, bit 6, bit 7, bit 8 = bit 5 */
+	return (s16)((hi << 8) | lo);
+}
+
+/**
+ * lis3lv02d_get_axis - For the given axis, give the value converted
+ * @axis:      1,2,3 - can also be negative
+ * @hw_values: raw values returned by the hardware
+ *
+ * Returns the converted value.
+ */
+static inline int lis3lv02d_get_axis(s8 axis, int hw_values[3])
+{
+	if (axis > 0)
+		return hw_values[axis - 1];
+	else
+		return -hw_values[-axis - 1];
+}
+
+/**
+ * lis3lv02d_get_xyz - Get X, Y and Z axis values from the accelerometer
+ * @handle: the handle to the device
+ * @x:      where to store the X axis value
+ * @y:      where to store the Y axis value
+ * @z:      where to store the Z axis value
+ *
+ * Note that 40Hz input device can eat up about 10% CPU at 800MHZ
+ */
+static void lis3lv02d_get_xyz(acpi_handle handle, int *x, int *y, int *z)
+{
+	int position[3];
+
+	position[0] = lis3lv02d_read_16(handle, OUTX_L);
+	position[1] = lis3lv02d_read_16(handle, OUTY_L);
+	position[2] = lis3lv02d_read_16(handle, OUTZ_L);
+
+	*x = lis3lv02d_get_axis(adev.ac.x, position);
+	*y = lis3lv02d_get_axis(adev.ac.y, position);
+	*z = lis3lv02d_get_axis(adev.ac.z, position);
+}
+
+static inline void lis3lv02d_poweroff(acpi_handle handle)
+{
+	adev.is_on = 0;
+	/* disable X,Y,Z axis and power down */
+	lis3lv02d_acpi_write(handle, CTRL_REG1, 0x00);
+}
+
+static void lis3lv02d_poweron(acpi_handle handle)
+{
+	u8 val;
+
+	adev.is_on = 1;
+	lis3lv02d_acpi_init(handle);
+	lis3lv02d_acpi_write(handle, FF_WU_CFG, 0);
+	/*
+	 * BDU: LSB and MSB values are not updated until both have been read.
+	 *      So the value read will always be correct.
+	 * IEN: Interrupt for free-fall and DD, not for data-ready.
+	 */
+	lis3lv02d_acpi_read(handle, CTRL_REG2, &val);
+	val |= CTRL2_BDU | CTRL2_IEN;
+	lis3lv02d_acpi_write(handle, CTRL_REG2, val);
+}
+
+#ifdef CONFIG_PM
+static int lis3lv02d_suspend(struct acpi_device *device, pm_message_t state)
+{
+	/* make sure the device is off when we suspend */
+	lis3lv02d_poweroff(device->handle);
+	return 0;
+}
+
+static int lis3lv02d_resume(struct acpi_device *device)
+{
+	/* put back the device in the right state (ACPI might turn it on) */
+	mutex_lock(&adev.lock);
+	if (adev.usage > 0)
+		lis3lv02d_poweron(device->handle);
+	else
+		lis3lv02d_poweroff(device->handle);
+	mutex_unlock(&adev.lock);
+	return 0;
+}
+#else
+#define lis3lv02d_suspend NULL
+#define lis3lv02d_resume NULL
+#endif
+
+
+/*
+ * To be called before starting to use the device. It makes sure that the
+ * device will always be on until a call to lis3lv02d_decrease_use(). Not to be
+ * used from interrupt context.
+ */
+static void lis3lv02d_increase_use(struct acpi_lis3lv02d *dev)
+{
+	mutex_lock(&dev->lock);
+	dev->usage++;
+	if (dev->usage == 1) {
+		if (!dev->is_on)
+			lis3lv02d_poweron(dev->device->handle);
+	}
+	mutex_unlock(&dev->lock);
+}
+
+/*
+ * To be called whenever a usage of the device is stopped.
+ * It will make sure to turn off the device when there is not usage.
+ */
+static void lis3lv02d_decrease_use(struct acpi_lis3lv02d *dev)
+{
+	mutex_lock(&dev->lock);
+	dev->usage--;
+	if (dev->usage == 0)
+		lis3lv02d_poweroff(dev->device->handle);
+	mutex_unlock(&dev->lock);
+}
+
+/**
+ * lis3lv02d_joystick_kthread - Kthread polling function
+ * @data: unused - here to conform to threadfn prototype
+ */
+static int lis3lv02d_joystick_kthread(void *data)
+{
+	int x, y, z;
+
+	while (!kthread_should_stop()) {
+		lis3lv02d_get_xyz(adev.device->handle, &x, &y, &z);
+		input_report_abs(adev.idev, ABS_X, x - adev.xcalib);
+		input_report_abs(adev.idev, ABS_Y, y - adev.ycalib);
+		input_report_abs(adev.idev, ABS_Z, z - adev.zcalib);
+
+		input_sync(adev.idev);
+
+		try_to_freeze();
+		msleep_interruptible(MDPS_POLL_INTERVAL);
+	}
+
+	return 0;
+}
+
+static int lis3lv02d_joystick_open(struct input_dev *input)
+{
+	lis3lv02d_increase_use(&adev);
+	adev.kthread = kthread_run(lis3lv02d_joystick_kthread, NULL, "klis3lv02d");
+	if (IS_ERR(adev.kthread)) {
+		lis3lv02d_decrease_use(&adev);
+		return PTR_ERR(adev.kthread);
+	}
+
+	return 0;
+}
+
+static void lis3lv02d_joystick_close(struct input_dev *input)
+{
+	kthread_stop(adev.kthread);
+	lis3lv02d_decrease_use(&adev);
+}
+
+
+static inline void lis3lv02d_calibrate_joystick(void)
+{
+	lis3lv02d_get_xyz(adev.device->handle, &adev.xcalib, &adev.ycalib, &adev.zcalib);
+}
+
+static int lis3lv02d_joystick_enable(void)
+{
+	int err;
+
+	if (adev.idev)
+		return -EINVAL;
+
+	adev.idev = input_allocate_device();
+	if (!adev.idev)
+		return -ENOMEM;
+
+	lis3lv02d_calibrate_joystick();
+
+	adev.idev->name       = "ST LIS3LV02DL Accelerometer";
+	adev.idev->phys       = DRIVER_NAME "/input0";
+	adev.idev->id.bustype = BUS_HOST;
+	adev.idev->id.vendor  = 0;
+	adev.idev->dev.parent = &adev.pdev->dev;
+	adev.idev->open       = lis3lv02d_joystick_open;
+	adev.idev->close      = lis3lv02d_joystick_close;
+
+	set_bit(EV_ABS, adev.idev->evbit);
+	input_set_abs_params(adev.idev, ABS_X, -MDPS_MAX_VAL, MDPS_MAX_VAL, 3, 3);
+	input_set_abs_params(adev.idev, ABS_Y, -MDPS_MAX_VAL, MDPS_MAX_VAL, 3, 3);
+	input_set_abs_params(adev.idev, ABS_Z, -MDPS_MAX_VAL, MDPS_MAX_VAL, 3, 3);
+
+	err = input_register_device(adev.idev);
+	if (err) {
+		input_free_device(adev.idev);
+		adev.idev = NULL;
+	}
+
+	return err;
+}
+
+static void lis3lv02d_joystick_disable(void)
+{
+	if (!adev.idev)
+		return;
+
+	input_unregister_device(adev.idev);
+	adev.idev = NULL;
+}
+
+
+/*
+ * Initialise the accelerometer and the various subsystems.
+ * Should be rather independant of the bus system.
+ */
+static int lis3lv02d_init_device(struct acpi_lis3lv02d *dev)
+{
+	mutex_init(&dev->lock);
+	lis3lv02d_add_fs(dev->device);
+	lis3lv02d_increase_use(dev);
+
+	if (lis3lv02d_joystick_enable())
+		printk(KERN_ERR DRIVER_NAME ": joystick initialization failed\n");
+
+	lis3lv02d_decrease_use(dev);
+	return 0;
+}
+
+static int lis3lv02d_dmi_matched(const struct dmi_system_id *dmi)
+{
+	adev.ac = *((struct axis_conversion *)dmi->driver_data);
+	printk(KERN_INFO DRIVER_NAME ": hardware type %s found.\n", dmi->ident);
+
+	return 1;
+}
+
+/* Represents, for each axis seen by userspace, the corresponding hw axis (+1).
+ * If the value is negative, the opposite of the hw value is used. */
+static struct axis_conversion lis3lv02d_axis_normal = {1, 2, 3};
+static struct axis_conversion lis3lv02d_axis_y_inverted = {1, -2, 3};
+static struct axis_conversion lis3lv02d_axis_x_inverted = {-1, 2, 3};
+static struct axis_conversion lis3lv02d_axis_z_inverted = {1, 2, -3};
+static struct axis_conversion lis3lv02d_axis_xy_rotated_left = {-2, 1, 3};
+static struct axis_conversion lis3lv02d_axis_xy_swap_inverted = {-2, -1, 3};
+
+#define AXIS_DMI_MATCH(_ident, _name, _axis) {		\
+	.ident = _ident,				\
+	.callback = lis3lv02d_dmi_matched,		\
+	.matches = {					\
+		DMI_MATCH(DMI_PRODUCT_NAME, _name)	\
+	},						\
+	.driver_data = &lis3lv02d_axis_##_axis		\
+}
+static struct dmi_system_id lis3lv02d_dmi_ids[] = {
+	/* product names are truncated to match all kinds of a same model */
+	AXIS_DMI_MATCH("NC64x0", "HP Compaq nc64", x_inverted),
+	AXIS_DMI_MATCH("NC84x0", "HP Compaq nc84", z_inverted),
+	AXIS_DMI_MATCH("NX9420", "HP Compaq nx9420", x_inverted),
+	AXIS_DMI_MATCH("NW9440", "HP Compaq nw9440", x_inverted),
+	AXIS_DMI_MATCH("NC2510", "HP Compaq 2510", y_inverted),
+	AXIS_DMI_MATCH("NC8510", "HP Compaq 8510", xy_swap_inverted),
+	AXIS_DMI_MATCH("HP2133", "HP 2133", xy_rotated_left),
+	{ NULL, }
+/* Laptop models without axis info (yet):
+ * "NC651xx" "HP Compaq 651"
+ * "NC671xx" "HP Compaq 671"
+ * "NC6910" "HP Compaq 6910"
+ * HP Compaq 8710x Notebook PC / Mobile Workstation
+ * "NC2400" "HP Compaq nc2400"
+ * "NX74x0" "HP Compaq nx74"
+ * "NX6325" "HP Compaq nx6325"
+ * "NC4400" "HP Compaq nc4400"
+ */
+};
+
+static int lis3lv02d_add(struct acpi_device *device)
+{
+	u8 val;
+
+	if (!device)
+		return -EINVAL;
+
+	adev.device = device;
+	strcpy(acpi_device_name(device), DRIVER_NAME);
+	strcpy(acpi_device_class(device), ACPI_MDPS_CLASS);
+	device->driver_data = &adev;
+
+	lis3lv02d_acpi_read(device->handle, WHO_AM_I, &val);
+	if ((val != LIS3LV02DL_ID) && (val != LIS302DL_ID)) {
+		printk(KERN_ERR DRIVER_NAME
+				": Accelerometer chip not LIS3LV02D{L,Q}\n");
+	}
+
+	/* If possible use a "standard" axes order */
+	if (dmi_check_system(lis3lv02d_dmi_ids) == 0) {
+		printk(KERN_INFO DRIVER_NAME ": laptop model unknown, "
+				 "using default axes configuration\n");
+		adev.ac = lis3lv02d_axis_normal;
+	}
+
+	return lis3lv02d_init_device(&adev);
+}
+
+static int lis3lv02d_remove(struct acpi_device *device, int type)
+{
+	if (!device)
+		return -EINVAL;
+
+	lis3lv02d_joystick_disable();
+	lis3lv02d_poweroff(device->handle);
+
+	return lis3lv02d_remove_fs();
+}
+
+
+/* Sysfs stuff */
+static ssize_t lis3lv02d_position_show(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	int x, y, z;
+
+	lis3lv02d_increase_use(&adev);
+	lis3lv02d_get_xyz(adev.device->handle, &x, &y, &z);
+	lis3lv02d_decrease_use(&adev);
+	return sprintf(buf, "(%d,%d,%d)\n", x, y, z);
+}
+
+static ssize_t lis3lv02d_calibrate_show(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "(%d,%d,%d)\n", adev.xcalib, adev.ycalib, adev.zcalib);
+}
+
+static ssize_t lis3lv02d_calibrate_store(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	lis3lv02d_increase_use(&adev);
+	lis3lv02d_calibrate_joystick();
+	lis3lv02d_decrease_use(&adev);
+	return count;
+}
+
+/* conversion btw sampling rate and the register values */
+static int lis3lv02dl_df_val[4] = {40, 160, 640, 2560};
+static ssize_t lis3lv02d_rate_show(struct device *dev,
+			struct device_attribute *attr, char *buf)
+{
+	u8 ctrl;
+	int val;
+
+	lis3lv02d_increase_use(&adev);
+	lis3lv02d_acpi_read(adev.device->handle, CTRL_REG1, &ctrl);
+	lis3lv02d_decrease_use(&adev);
+	val = (ctrl & (CTRL1_DF0 | CTRL1_DF1)) >> 4;
+	return sprintf(buf, "%d\n", lis3lv02dl_df_val[val]);
+}
+
+static DEVICE_ATTR(position, S_IRUGO, lis3lv02d_position_show, NULL);
+static DEVICE_ATTR(calibrate, S_IRUGO|S_IWUSR, lis3lv02d_calibrate_show,
+	lis3lv02d_calibrate_store);
+static DEVICE_ATTR(rate, S_IRUGO, lis3lv02d_rate_show, NULL);
+
+static struct attribute *lis3lv02d_attributes[] = {
+	&dev_attr_position.attr,
+	&dev_attr_calibrate.attr,
+	&dev_attr_rate.attr,
+	NULL
+};
+
+static struct attribute_group lis3lv02d_attribute_group = {
+	.attrs = lis3lv02d_attributes
+};
+
+static int lis3lv02d_add_fs(struct acpi_device *device)
+{
+	adev.pdev = platform_device_register_simple(DRIVER_NAME, -1, NULL, 0);
+	if (IS_ERR(adev.pdev))
+		return PTR_ERR(adev.pdev);
+
+	return sysfs_create_group(&adev.pdev->dev.kobj, &lis3lv02d_attribute_group);
+}
+
+static int lis3lv02d_remove_fs(void)
+{
+	sysfs_remove_group(&adev.pdev->dev.kobj, &lis3lv02d_attribute_group);
+	platform_device_unregister(adev.pdev);
+	return 0;
+}
+
+/* For the HP MDPS aka 3D Driveguard */
+static struct acpi_driver lis3lv02d_driver = {
+	.name  = DRIVER_NAME,
+	.class = ACPI_MDPS_CLASS,
+	.ids   = lis3lv02d_device_ids,
+	.ops = {
+		.add     = lis3lv02d_add,
+		.remove  = lis3lv02d_remove,
+		.suspend = lis3lv02d_suspend,
+		.resume  = lis3lv02d_resume,
+	}
+};
+
+static int __init lis3lv02d_init_module(void)
+{
+	int ret;
+
+	if (acpi_disabled)
+		return -ENODEV;
+
+	ret = acpi_bus_register_driver(&lis3lv02d_driver);
+	if (ret < 0)
+		return ret;
+
+	printk(KERN_INFO DRIVER_NAME " driver loaded.\n");
+
+	return 0;
+}
+
+static void __exit lis3lv02d_exit_module(void)
+{
+	acpi_bus_unregister_driver(&lis3lv02d_driver);
+}
+
+MODULE_DESCRIPTION("ST LIS3LV02Dx three-axis digital accelerometer driver");
+MODULE_AUTHOR("Yan Burman and Eric Piel");
+MODULE_LICENSE("GPL");
+
+module_init(lis3lv02d_init_module);
+module_exit(lis3lv02d_exit_module);
diff --git a/drivers/hwmon/lis3lv02d.h b/drivers/hwmon/lis3lv02d.h
new file mode 100644
index 0000000..330cfc6
--- /dev/null
+++ b/drivers/hwmon/lis3lv02d.h
@@ -0,0 +1,149 @@
+/*
+ *  lis3lv02d.h - ST LIS3LV02DL accelerometer driver
+ *
+ *  Copyright (C) 2007-2008 Yan Burman
+ *  Copyright (C) 2008 Eric Piel
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/*
+ * The actual chip is STMicroelectronics LIS3LV02DL or LIS3LV02DQ that seems to
+ * be connected via SPI. There exists also several similar chips (such as LIS302DL or
+ * LIS3L02DQ) but not in the HP laptops and they have slightly different registers.
+ * They can also be connected via I²C.
+ */
+
+#define LIS3LV02DL_ID	0x3A /* Also the LIS3LV02DQ */
+#define LIS302DL_ID	0x3B /* Also the LIS202DL! */
+
+enum lis3lv02d_reg {
+	WHO_AM_I	= 0x0F,
+	OFFSET_X	= 0x16,
+	OFFSET_Y	= 0x17,
+	OFFSET_Z	= 0x18,
+	GAIN_X		= 0x19,
+	GAIN_Y		= 0x1A,
+	GAIN_Z		= 0x1B,
+	CTRL_REG1	= 0x20,
+	CTRL_REG2	= 0x21,
+	CTRL_REG3	= 0x22,
+	HP_FILTER_RESET	= 0x23,
+	STATUS_REG	= 0x27,
+	OUTX_L		= 0x28,
+	OUTX_H		= 0x29,
+	OUTY_L		= 0x2A,
+	OUTY_H		= 0x2B,
+	OUTZ_L		= 0x2C,
+	OUTZ_H		= 0x2D,
+	FF_WU_CFG	= 0x30,
+	FF_WU_SRC	= 0x31,
+	FF_WU_ACK	= 0x32,
+	FF_WU_THS_L	= 0x34,
+	FF_WU_THS_H	= 0x35,
+	FF_WU_DURATION	= 0x36,
+	DD_CFG		= 0x38,
+	DD_SRC		= 0x39,
+	DD_ACK		= 0x3A,
+	DD_THSI_L	= 0x3C,
+	DD_THSI_H	= 0x3D,
+	DD_THSE_L	= 0x3E,
+	DD_THSE_H	= 0x3F,
+};
+
+enum lis3lv02d_ctrl1 {
+	CTRL1_Xen	= 0x01,
+	CTRL1_Yen	= 0x02,
+	CTRL1_Zen	= 0x04,
+	CTRL1_ST	= 0x08,
+	CTRL1_DF0	= 0x10,
+	CTRL1_DF1	= 0x20,
+	CTRL1_PD0	= 0x40,
+	CTRL1_PD1	= 0x80,
+};
+enum lis3lv02d_ctrl2 {
+	CTRL2_DAS	= 0x01,
+	CTRL2_SIM	= 0x02,
+	CTRL2_DRDY	= 0x04,
+	CTRL2_IEN	= 0x08,
+	CTRL2_BOOT	= 0x10,
+	CTRL2_BLE	= 0x20,
+	CTRL2_BDU	= 0x40, /* Block Data Update */
+	CTRL2_FS	= 0x80, /* Full Scale selection */
+};
+
+
+enum lis3lv02d_ctrl3 {
+	CTRL3_CFS0	= 0x01,
+	CTRL3_CFS1	= 0x02,
+	CTRL3_FDS	= 0x10,
+	CTRL3_HPFF	= 0x20,
+	CTRL3_HPDD	= 0x40,
+	CTRL3_ECK	= 0x80,
+};
+
+enum lis3lv02d_status_reg {
+	STATUS_XDA	= 0x01,
+	STATUS_YDA	= 0x02,
+	STATUS_ZDA	= 0x04,
+	STATUS_XYZDA	= 0x08,
+	STATUS_XOR	= 0x10,
+	STATUS_YOR	= 0x20,
+	STATUS_ZOR	= 0x40,
+	STATUS_XYZOR	= 0x80,
+};
+
+enum lis3lv02d_ff_wu_cfg {
+	FF_WU_CFG_XLIE	= 0x01,
+	FF_WU_CFG_XHIE	= 0x02,
+	FF_WU_CFG_YLIE	= 0x04,
+	FF_WU_CFG_YHIE	= 0x08,
+	FF_WU_CFG_ZLIE	= 0x10,
+	FF_WU_CFG_ZHIE	= 0x20,
+	FF_WU_CFG_LIR	= 0x40,
+	FF_WU_CFG_AOI	= 0x80,
+};
+
+enum lis3lv02d_ff_wu_src {
+	FF_WU_SRC_XL	= 0x01,
+	FF_WU_SRC_XH	= 0x02,
+	FF_WU_SRC_YL	= 0x04,
+	FF_WU_SRC_YH	= 0x08,
+	FF_WU_SRC_ZL	= 0x10,
+	FF_WU_SRC_ZH	= 0x20,
+	FF_WU_SRC_IA	= 0x40,
+};
+
+enum lis3lv02d_dd_cfg {
+	DD_CFG_XLIE	= 0x01,
+	DD_CFG_XHIE	= 0x02,
+	DD_CFG_YLIE	= 0x04,
+	DD_CFG_YHIE	= 0x08,
+	DD_CFG_ZLIE	= 0x10,
+	DD_CFG_ZHIE	= 0x20,
+	DD_CFG_LIR	= 0x40,
+	DD_CFG_IEND	= 0x80,
+};
+
+enum lis3lv02d_dd_src {
+	DD_SRC_XL	= 0x01,
+	DD_SRC_XH	= 0x02,
+	DD_SRC_YL	= 0x04,
+	DD_SRC_YH	= 0x08,
+	DD_SRC_ZL	= 0x10,
+	DD_SRC_ZH	= 0x20,
+	DD_SRC_IA	= 0x40,
+};
+
diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c
new file mode 100644
index 0000000..3195a26
--- /dev/null
+++ b/drivers/hwmon/lm63.c
@@ -0,0 +1,641 @@
+/*
+ * lm63.c - driver for the National Semiconductor LM63 temperature sensor
+ *          with integrated fan control
+ * Copyright (C) 2004-2008  Jean Delvare <khali@linux-fr.org>
+ * Based on the lm90 driver.
+ *
+ * The LM63 is a sensor chip made by National Semiconductor. It measures
+ * two temperatures (its own and one external one) and the speed of one
+ * fan, those speed it can additionally control. Complete datasheet can be
+ * obtained from National's website at:
+ *   http://www.national.com/pf/LM/LM63.html
+ *
+ * The LM63 is basically an LM86 with fan speed monitoring and control
+ * capabilities added. It misses some of the LM86 features though:
+ *  - No low limit for local temperature.
+ *  - No critical limit for local temperature.
+ *  - Critical limit for remote temperature can be changed only once. We
+ *    will consider that the critical limit is read-only.
+ *
+ * The datasheet isn't very clear about what the tachometer reading is.
+ * I had a explanation from National Semiconductor though. The two lower
+ * bits of the read value have to be masked out. The value is still 16 bit
+ * in width.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+
+/*
+ * Addresses to scan
+ * Address is fully defined internally and cannot be changed.
+ */
+
+static const unsigned short normal_i2c[] = { 0x4c, I2C_CLIENT_END };
+
+/*
+ * Insmod parameters
+ */
+
+I2C_CLIENT_INSMOD_1(lm63);
+
+/*
+ * The LM63 registers
+ */
+
+#define LM63_REG_CONFIG1		0x03
+#define LM63_REG_CONFIG2		0xBF
+#define LM63_REG_CONFIG_FAN		0x4A
+
+#define LM63_REG_TACH_COUNT_MSB		0x47
+#define LM63_REG_TACH_COUNT_LSB		0x46
+#define LM63_REG_TACH_LIMIT_MSB		0x49
+#define LM63_REG_TACH_LIMIT_LSB		0x48
+
+#define LM63_REG_PWM_VALUE		0x4C
+#define LM63_REG_PWM_FREQ		0x4D
+
+#define LM63_REG_LOCAL_TEMP		0x00
+#define LM63_REG_LOCAL_HIGH		0x05
+
+#define LM63_REG_REMOTE_TEMP_MSB	0x01
+#define LM63_REG_REMOTE_TEMP_LSB	0x10
+#define LM63_REG_REMOTE_OFFSET_MSB	0x11
+#define LM63_REG_REMOTE_OFFSET_LSB	0x12
+#define LM63_REG_REMOTE_HIGH_MSB	0x07
+#define LM63_REG_REMOTE_HIGH_LSB	0x13
+#define LM63_REG_REMOTE_LOW_MSB		0x08
+#define LM63_REG_REMOTE_LOW_LSB		0x14
+#define LM63_REG_REMOTE_TCRIT		0x19
+#define LM63_REG_REMOTE_TCRIT_HYST	0x21
+
+#define LM63_REG_ALERT_STATUS		0x02
+#define LM63_REG_ALERT_MASK		0x16
+
+#define LM63_REG_MAN_ID			0xFE
+#define LM63_REG_CHIP_ID		0xFF
+
+/*
+ * Conversions and various macros
+ * For tachometer counts, the LM63 uses 16-bit values.
+ * For local temperature and high limit, remote critical limit and hysteresis
+ * value, it uses signed 8-bit values with LSB = 1 degree Celsius.
+ * For remote temperature, low and high limits, it uses signed 11-bit values
+ * with LSB = 0.125 degree Celsius, left-justified in 16-bit registers.
+ */
+
+#define FAN_FROM_REG(reg)	((reg) == 0xFFFC || (reg) == 0 ? 0 : \
+				 5400000 / (reg))
+#define FAN_TO_REG(val)		((val) <= 82 ? 0xFFFC : \
+				 (5400000 / (val)) & 0xFFFC)
+#define TEMP8_FROM_REG(reg)	((reg) * 1000)
+#define TEMP8_TO_REG(val)	((val) <= -128000 ? -128 : \
+				 (val) >= 127000 ? 127 : \
+				 (val) < 0 ? ((val) - 500) / 1000 : \
+				 ((val) + 500) / 1000)
+#define TEMP11_FROM_REG(reg)	((reg) / 32 * 125)
+#define TEMP11_TO_REG(val)	((val) <= -128000 ? 0x8000 : \
+				 (val) >= 127875 ? 0x7FE0 : \
+				 (val) < 0 ? ((val) - 62) / 125 * 32 : \
+				 ((val) + 62) / 125 * 32)
+#define HYST_TO_REG(val)	((val) <= 0 ? 0 : \
+				 (val) >= 127000 ? 127 : \
+				 ((val) + 500) / 1000)
+
+/*
+ * Functions declaration
+ */
+
+static int lm63_probe(struct i2c_client *client,
+		      const struct i2c_device_id *id);
+static int lm63_remove(struct i2c_client *client);
+
+static struct lm63_data *lm63_update_device(struct device *dev);
+
+static int lm63_detect(struct i2c_client *client, int kind,
+		       struct i2c_board_info *info);
+static void lm63_init_client(struct i2c_client *client);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static const struct i2c_device_id lm63_id[] = {
+	{ "lm63", lm63 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, lm63_id);
+
+static struct i2c_driver lm63_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "lm63",
+	},
+	.probe		= lm63_probe,
+	.remove		= lm63_remove,
+	.id_table	= lm63_id,
+	.detect		= lm63_detect,
+	.address_data	= &addr_data,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct lm63_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	char valid; /* zero until following fields are valid */
+	unsigned long last_updated; /* in jiffies */
+
+	/* registers values */
+	u8 config, config_fan;
+	u16 fan[2];	/* 0: input
+			   1: low limit */
+	u8 pwm1_freq;
+	u8 pwm1_value;
+	s8 temp8[3];	/* 0: local input
+			   1: local high limit
+			   2: remote critical limit */
+	s16 temp11[3];	/* 0: remote input
+			   1: remote low limit
+			   2: remote high limit */
+	u8 temp2_crit_hyst;
+	u8 alarms;
+};
+
+/*
+ * Sysfs callback functions and files
+ */
+
+static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
+			char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct lm63_data *data = lm63_update_device(dev);
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[attr->index]));
+}
+
+static ssize_t set_fan(struct device *dev, struct device_attribute *dummy,
+		       const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm63_data *data = i2c_get_clientdata(client);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->fan[1] = FAN_TO_REG(val);
+	i2c_smbus_write_byte_data(client, LM63_REG_TACH_LIMIT_LSB,
+				  data->fan[1] & 0xFF);
+	i2c_smbus_write_byte_data(client, LM63_REG_TACH_LIMIT_MSB,
+				  data->fan[1] >> 8);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_pwm1(struct device *dev, struct device_attribute *dummy,
+			 char *buf)
+{
+	struct lm63_data *data = lm63_update_device(dev);
+	return sprintf(buf, "%d\n", data->pwm1_value >= 2 * data->pwm1_freq ?
+		       255 : (data->pwm1_value * 255 + data->pwm1_freq) /
+		       (2 * data->pwm1_freq));
+}
+
+static ssize_t set_pwm1(struct device *dev, struct device_attribute *dummy,
+			const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm63_data *data = i2c_get_clientdata(client);
+	unsigned long val;
+	
+	if (!(data->config_fan & 0x20)) /* register is read-only */
+		return -EPERM;
+
+	val = simple_strtoul(buf, NULL, 10);
+	mutex_lock(&data->update_lock);
+	data->pwm1_value = val <= 0 ? 0 :
+			   val >= 255 ? 2 * data->pwm1_freq :
+			   (val * data->pwm1_freq * 2 + 127) / 255;
+	i2c_smbus_write_byte_data(client, LM63_REG_PWM_VALUE, data->pwm1_value);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_pwm1_enable(struct device *dev, struct device_attribute *dummy,
+				char *buf)
+{
+	struct lm63_data *data = lm63_update_device(dev);
+	return sprintf(buf, "%d\n", data->config_fan & 0x20 ? 1 : 2);
+}
+
+static ssize_t show_temp8(struct device *dev, struct device_attribute *devattr,
+			  char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct lm63_data *data = lm63_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP8_FROM_REG(data->temp8[attr->index]));
+}
+
+static ssize_t set_temp8(struct device *dev, struct device_attribute *dummy,
+			 const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm63_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp8[1] = TEMP8_TO_REG(val);
+	i2c_smbus_write_byte_data(client, LM63_REG_LOCAL_HIGH, data->temp8[1]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_temp11(struct device *dev, struct device_attribute *devattr,
+			   char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct lm63_data *data = lm63_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP11_FROM_REG(data->temp11[attr->index]));
+}
+
+static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr,
+			  const char *buf, size_t count)
+{
+	static const u8 reg[4] = {
+		LM63_REG_REMOTE_LOW_MSB,
+		LM63_REG_REMOTE_LOW_LSB,
+		LM63_REG_REMOTE_HIGH_MSB,
+		LM63_REG_REMOTE_HIGH_LSB,
+	};
+
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm63_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+	int nr = attr->index;
+
+	mutex_lock(&data->update_lock);
+	data->temp11[nr] = TEMP11_TO_REG(val);
+	i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2],
+				  data->temp11[nr] >> 8);
+	i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2 + 1],
+				  data->temp11[nr] & 0xff);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+/* Hysteresis register holds a relative value, while we want to present
+   an absolute to user-space */
+static ssize_t show_temp2_crit_hyst(struct device *dev, struct device_attribute *dummy,
+				    char *buf)
+{
+	struct lm63_data *data = lm63_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP8_FROM_REG(data->temp8[2])
+		       - TEMP8_FROM_REG(data->temp2_crit_hyst));
+}
+
+/* And now the other way around, user-space provides an absolute
+   hysteresis value and we have to store a relative one */
+static ssize_t set_temp2_crit_hyst(struct device *dev, struct device_attribute *dummy,
+				   const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm63_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+	long hyst;
+
+	mutex_lock(&data->update_lock);
+	hyst = TEMP8_FROM_REG(data->temp8[2]) - val;
+	i2c_smbus_write_byte_data(client, LM63_REG_REMOTE_TCRIT_HYST,
+				  HYST_TO_REG(hyst));
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_alarms(struct device *dev, struct device_attribute *dummy,
+			   char *buf)
+{
+	struct lm63_data *data = lm63_update_device(dev);
+	return sprintf(buf, "%u\n", data->alarms);
+}
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *devattr,
+			  char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct lm63_data *data = lm63_update_device(dev);
+	int bitnr = attr->index;
+
+	return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
+}
+
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan,
+	set_fan, 1);
+
+static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm1, set_pwm1);
+static DEVICE_ATTR(pwm1_enable, S_IRUGO, show_pwm1_enable, NULL);
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp8, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp8,
+	set_temp8, 1);
+
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp11, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp11,
+	set_temp11, 1);
+static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp11,
+	set_temp11, 2);
+static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO, show_temp8, NULL, 2);
+static DEVICE_ATTR(temp2_crit_hyst, S_IWUSR | S_IRUGO, show_temp2_crit_hyst,
+	set_temp2_crit_hyst);
+
+/* Individual alarm files */
+static SENSOR_DEVICE_ATTR(fan1_min_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6);
+/* Raw alarm file for compatibility */
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+static struct attribute *lm63_attributes[] = {
+	&dev_attr_pwm1.attr,
+	&dev_attr_pwm1_enable.attr,
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_crit.dev_attr.attr,
+	&dev_attr_temp2_crit_hyst.attr,
+
+	&sensor_dev_attr_temp2_crit_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_fault.dev_attr.attr,
+	&sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
+	&dev_attr_alarms.attr,
+	NULL
+};
+
+static const struct attribute_group lm63_group = {
+	.attrs = lm63_attributes,
+};
+
+static struct attribute *lm63_attributes_fan1[] = {
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+
+	&sensor_dev_attr_fan1_min_alarm.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group lm63_group_fan1 = {
+	.attrs = lm63_attributes_fan1,
+};
+
+/*
+ * Real code
+ */
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int lm63_detect(struct i2c_client *new_client, int kind,
+		       struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = new_client->adapter;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	if (kind < 0) { /* must identify */
+		u8 man_id, chip_id, reg_config1, reg_config2;
+		u8 reg_alert_status, reg_alert_mask;
+
+		man_id = i2c_smbus_read_byte_data(new_client,
+			 LM63_REG_MAN_ID);
+		chip_id = i2c_smbus_read_byte_data(new_client,
+			  LM63_REG_CHIP_ID);
+		reg_config1 = i2c_smbus_read_byte_data(new_client,
+			      LM63_REG_CONFIG1);
+		reg_config2 = i2c_smbus_read_byte_data(new_client,
+			      LM63_REG_CONFIG2);
+		reg_alert_status = i2c_smbus_read_byte_data(new_client,
+				   LM63_REG_ALERT_STATUS);
+		reg_alert_mask = i2c_smbus_read_byte_data(new_client,
+				 LM63_REG_ALERT_MASK);
+
+		if (man_id == 0x01 /* National Semiconductor */
+		 && chip_id == 0x41 /* LM63 */
+		 && (reg_config1 & 0x18) == 0x00
+		 && (reg_config2 & 0xF8) == 0x00
+		 && (reg_alert_status & 0x20) == 0x00
+		 && (reg_alert_mask & 0xA4) == 0xA4) {
+			kind = lm63;
+		} else { /* failed */
+			dev_dbg(&adapter->dev, "Unsupported chip "
+				"(man_id=0x%02X, chip_id=0x%02X).\n",
+				man_id, chip_id);
+			return -ENODEV;
+		}
+	}
+
+	strlcpy(info->type, "lm63", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int lm63_probe(struct i2c_client *new_client,
+		      const struct i2c_device_id *id)
+{
+	struct lm63_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct lm63_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(new_client, data);
+	data->valid = 0;
+	mutex_init(&data->update_lock);
+
+	/* Initialize the LM63 chip */
+	lm63_init_client(new_client);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&new_client->dev.kobj,
+				      &lm63_group)))
+		goto exit_free;
+	if (data->config & 0x04) { /* tachometer enabled */
+		if ((err = sysfs_create_group(&new_client->dev.kobj,
+					      &lm63_group_fan1)))
+			goto exit_remove_files;
+	}
+
+	data->hwmon_dev = hwmon_device_register(&new_client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove_files;
+	}
+
+	return 0;
+
+exit_remove_files:
+	sysfs_remove_group(&new_client->dev.kobj, &lm63_group);
+	sysfs_remove_group(&new_client->dev.kobj, &lm63_group_fan1);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+/* Idealy we shouldn't have to initialize anything, since the BIOS
+   should have taken care of everything */
+static void lm63_init_client(struct i2c_client *client)
+{
+	struct lm63_data *data = i2c_get_clientdata(client);
+
+	data->config = i2c_smbus_read_byte_data(client, LM63_REG_CONFIG1);
+	data->config_fan = i2c_smbus_read_byte_data(client,
+						    LM63_REG_CONFIG_FAN);
+
+	/* Start converting if needed */
+	if (data->config & 0x40) { /* standby */
+		dev_dbg(&client->dev, "Switching to operational mode\n");
+		data->config &= 0xA7;
+		i2c_smbus_write_byte_data(client, LM63_REG_CONFIG1,
+					  data->config);
+	}
+
+	/* We may need pwm1_freq before ever updating the client data */
+	data->pwm1_freq = i2c_smbus_read_byte_data(client, LM63_REG_PWM_FREQ);
+	if (data->pwm1_freq == 0)
+		data->pwm1_freq = 1;
+
+	/* Show some debug info about the LM63 configuration */
+	dev_dbg(&client->dev, "Alert/tach pin configured for %s\n",
+		(data->config & 0x04) ? "tachometer input" :
+		"alert output");
+	dev_dbg(&client->dev, "PWM clock %s kHz, output frequency %u Hz\n",
+		(data->config_fan & 0x08) ? "1.4" : "360",
+		((data->config_fan & 0x08) ? 700 : 180000) / data->pwm1_freq);
+	dev_dbg(&client->dev, "PWM output active %s, %s mode\n",
+		(data->config_fan & 0x10) ? "low" : "high",
+		(data->config_fan & 0x20) ? "manual" : "auto");
+}
+
+static int lm63_remove(struct i2c_client *client)
+{
+	struct lm63_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &lm63_group);
+	sysfs_remove_group(&client->dev.kobj, &lm63_group_fan1);
+
+	kfree(data);
+	return 0;
+}
+
+static struct lm63_data *lm63_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm63_data *data = i2c_get_clientdata(client);
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
+		if (data->config & 0x04) { /* tachometer enabled  */
+			/* order matters for fan1_input */
+			data->fan[0] = i2c_smbus_read_byte_data(client,
+				       LM63_REG_TACH_COUNT_LSB) & 0xFC;
+			data->fan[0] |= i2c_smbus_read_byte_data(client,
+					LM63_REG_TACH_COUNT_MSB) << 8;
+			data->fan[1] = (i2c_smbus_read_byte_data(client,
+					LM63_REG_TACH_LIMIT_LSB) & 0xFC)
+				     | (i2c_smbus_read_byte_data(client,
+					LM63_REG_TACH_LIMIT_MSB) << 8);
+		}
+
+		data->pwm1_freq = i2c_smbus_read_byte_data(client,
+				  LM63_REG_PWM_FREQ);
+		if (data->pwm1_freq == 0)
+			data->pwm1_freq = 1;
+		data->pwm1_value = i2c_smbus_read_byte_data(client,
+				   LM63_REG_PWM_VALUE);
+
+		data->temp8[0] = i2c_smbus_read_byte_data(client,
+				 LM63_REG_LOCAL_TEMP);
+		data->temp8[1] = i2c_smbus_read_byte_data(client,
+				 LM63_REG_LOCAL_HIGH);
+
+		/* order matters for temp2_input */
+		data->temp11[0] = i2c_smbus_read_byte_data(client,
+				  LM63_REG_REMOTE_TEMP_MSB) << 8;
+		data->temp11[0] |= i2c_smbus_read_byte_data(client,
+				   LM63_REG_REMOTE_TEMP_LSB);
+		data->temp11[1] = (i2c_smbus_read_byte_data(client,
+				  LM63_REG_REMOTE_LOW_MSB) << 8)
+				| i2c_smbus_read_byte_data(client,
+				  LM63_REG_REMOTE_LOW_LSB);
+		data->temp11[2] = (i2c_smbus_read_byte_data(client,
+				  LM63_REG_REMOTE_HIGH_MSB) << 8)
+				| i2c_smbus_read_byte_data(client,
+				  LM63_REG_REMOTE_HIGH_LSB);
+		data->temp8[2] = i2c_smbus_read_byte_data(client,
+				 LM63_REG_REMOTE_TCRIT);
+		data->temp2_crit_hyst = i2c_smbus_read_byte_data(client,
+					LM63_REG_REMOTE_TCRIT_HYST);
+
+		data->alarms = i2c_smbus_read_byte_data(client,
+			       LM63_REG_ALERT_STATUS) & 0x7F;
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init sensors_lm63_init(void)
+{
+	return i2c_add_driver(&lm63_driver);
+}
+
+static void __exit sensors_lm63_exit(void)
+{
+	i2c_del_driver(&lm63_driver);
+}
+
+MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
+MODULE_DESCRIPTION("LM63 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_lm63_init);
+module_exit(sensors_lm63_exit);
diff --git a/drivers/hwmon/lm70.c b/drivers/hwmon/lm70.c
new file mode 100644
index 0000000..d435f00
--- /dev/null
+++ b/drivers/hwmon/lm70.c
@@ -0,0 +1,181 @@
+/*
+ * lm70.c
+ *
+ * The LM70 is a temperature sensor chip from National Semiconductor (NS).
+ * Copyright (C) 2006 Kaiwan N Billimoria <kaiwan@designergraphix.com>
+ *
+ * The LM70 communicates with a host processor via an SPI/Microwire Bus
+ * interface. The complete datasheet is available at National's website
+ * here:
+ * http://www.national.com/pf/LM/LM70.html
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/sysfs.h>
+#include <linux/hwmon.h>
+#include <linux/mutex.h>
+#include <linux/spi/spi.h>
+
+
+#define DRVNAME		"lm70"
+
+struct lm70 {
+	struct device *hwmon_dev;
+	struct mutex lock;
+};
+
+/* sysfs hook function */
+static ssize_t lm70_sense_temp(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct spi_device *spi = to_spi_device(dev);
+	int status, val;
+	u8 rxbuf[2];
+	s16 raw=0;
+	struct lm70 *p_lm70 = dev_get_drvdata(&spi->dev);
+
+	if (mutex_lock_interruptible(&p_lm70->lock))
+		return -ERESTARTSYS;
+
+	/*
+	 * spi_read() requires a DMA-safe buffer; so we use
+	 * spi_write_then_read(), transmitting 0 bytes.
+	 */
+	status = spi_write_then_read(spi, NULL, 0, &rxbuf[0], 2);
+	if (status < 0) {
+		printk(KERN_WARNING
+		"spi_write_then_read failed with status %d\n", status);
+		goto out;
+	}
+	dev_dbg(dev, "rxbuf[1] : 0x%x rxbuf[0] : 0x%x\n", rxbuf[1], rxbuf[0]);
+
+	raw = (rxbuf[1] << 8) + rxbuf[0];
+	dev_dbg(dev, "raw=0x%x\n", raw);
+
+	/*
+	 * The "raw" temperature read into rxbuf[] is a 16-bit signed 2's
+	 * complement value. Only the MSB 11 bits (1 sign + 10 temperature
+	 * bits) are meaningful; the LSB 5 bits are to be discarded.
+	 * See the datasheet.
+	 *
+	 * Further, each bit represents 0.25 degrees Celsius; so, multiply
+	 * by 0.25. Also multiply by 1000 to represent in millidegrees
+	 * Celsius.
+	 * So it's equivalent to multiplying by 0.25 * 1000 = 250.
+	 */
+	val = ((int)raw/32) * 250;
+	status = sprintf(buf, "%d\n", val); /* millidegrees Celsius */
+out:
+	mutex_unlock(&p_lm70->lock);
+	return status;
+}
+
+static DEVICE_ATTR(temp1_input, S_IRUGO, lm70_sense_temp, NULL);
+
+static ssize_t lm70_show_name(struct device *dev, struct device_attribute
+			      *devattr, char *buf)
+{
+	return sprintf(buf, "lm70\n");
+}
+
+static DEVICE_ATTR(name, S_IRUGO, lm70_show_name, NULL);
+
+/*----------------------------------------------------------------------*/
+
+static int __devinit lm70_probe(struct spi_device *spi)
+{
+	struct lm70 *p_lm70;
+	int status;
+
+	/* signaling is SPI_MODE_0 on a 3-wire link (shared SI/SO) */
+	if ((spi->mode & (SPI_CPOL|SPI_CPHA)) || !(spi->mode & SPI_3WIRE))
+		return -EINVAL;
+
+	p_lm70 = kzalloc(sizeof *p_lm70, GFP_KERNEL);
+	if (!p_lm70)
+		return -ENOMEM;
+
+	mutex_init(&p_lm70->lock);
+
+	/* sysfs hook */
+	p_lm70->hwmon_dev = hwmon_device_register(&spi->dev);
+	if (IS_ERR(p_lm70->hwmon_dev)) {
+		dev_dbg(&spi->dev, "hwmon_device_register failed.\n");
+		status = PTR_ERR(p_lm70->hwmon_dev);
+		goto out_dev_reg_failed;
+	}
+	dev_set_drvdata(&spi->dev, p_lm70);
+
+	if ((status = device_create_file(&spi->dev, &dev_attr_temp1_input))
+	 || (status = device_create_file(&spi->dev, &dev_attr_name))) {
+		dev_dbg(&spi->dev, "device_create_file failure.\n");
+		goto out_dev_create_file_failed;
+	}
+
+	return 0;
+
+out_dev_create_file_failed:
+	device_remove_file(&spi->dev, &dev_attr_temp1_input);
+	hwmon_device_unregister(p_lm70->hwmon_dev);
+out_dev_reg_failed:
+	dev_set_drvdata(&spi->dev, NULL);
+	kfree(p_lm70);
+	return status;
+}
+
+static int __devexit lm70_remove(struct spi_device *spi)
+{
+	struct lm70 *p_lm70 = dev_get_drvdata(&spi->dev);
+
+	device_remove_file(&spi->dev, &dev_attr_temp1_input);
+	device_remove_file(&spi->dev, &dev_attr_name);
+	hwmon_device_unregister(p_lm70->hwmon_dev);
+	dev_set_drvdata(&spi->dev, NULL);
+	kfree(p_lm70);
+
+	return 0;
+}
+
+static struct spi_driver lm70_driver = {
+	.driver = {
+		.name	= "lm70",
+		.owner	= THIS_MODULE,
+	},
+	.probe	= lm70_probe,
+	.remove	= __devexit_p(lm70_remove),
+};
+
+static int __init init_lm70(void)
+{
+	return spi_register_driver(&lm70_driver);
+}
+
+static void __exit cleanup_lm70(void)
+{
+	spi_unregister_driver(&lm70_driver);
+}
+
+module_init(init_lm70);
+module_exit(cleanup_lm70);
+
+MODULE_AUTHOR("Kaiwan N Billimoria");
+MODULE_DESCRIPTION("National Semiconductor LM70 Linux driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
new file mode 100644
index 0000000..8f9595f
--- /dev/null
+++ b/drivers/hwmon/lm75.c
@@ -0,0 +1,381 @@
+/*
+    lm75.c - Part of lm_sensors, Linux kernel modules for hardware
+             monitoring
+    Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include "lm75.h"
+
+
+/*
+ * This driver handles the LM75 and compatible digital temperature sensors.
+ * Only types which are _not_ listed in I2C_CLIENT_INSMOD_*() need to be
+ * listed here.  We start at 9 since I2C_CLIENT_INSMOD_*() currently allow
+ * definition of up to 8 chip types (plus zero).
+ */
+
+enum lm75_type {		/* keep sorted in alphabetical order */
+	ds1775 = 9,
+	ds75,
+	/* lm75 -- in I2C_CLIENT_INSMOD_1() */
+	lm75a,
+	max6625,
+	max6626,
+	mcp980x,
+	stds75,
+	tcn75,
+	tmp100,
+	tmp101,
+	tmp175,
+	tmp275,
+	tmp75,
+};
+
+/* Addresses scanned */
+static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, 0x4c,
+					0x4d, 0x4e, 0x4f, I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_1(lm75);
+
+
+/* The LM75 registers */
+#define LM75_REG_CONF		0x01
+static const u8 LM75_REG_TEMP[3] = {
+	0x00,		/* input */
+	0x03,		/* max */
+	0x02,		/* hyst */
+};
+
+/* Each client has this additional data */
+struct lm75_data {
+	struct device		*hwmon_dev;
+	struct mutex		update_lock;
+	u8			orig_conf;
+	char			valid;		/* !=0 if registers are valid */
+	unsigned long		last_updated;	/* In jiffies */
+	u16			temp[3];	/* Register values,
+						   0 = input
+						   1 = max
+						   2 = hyst */
+};
+
+static int lm75_read_value(struct i2c_client *client, u8 reg);
+static int lm75_write_value(struct i2c_client *client, u8 reg, u16 value);
+static struct lm75_data *lm75_update_device(struct device *dev);
+
+
+/*-----------------------------------------------------------------------*/
+
+/* sysfs attributes for hwmon */
+
+static ssize_t show_temp(struct device *dev, struct device_attribute *da,
+			 char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct lm75_data *data = lm75_update_device(dev);
+	return sprintf(buf, "%d\n",
+		       LM75_TEMP_FROM_REG(data->temp[attr->index]));
+}
+
+static ssize_t set_temp(struct device *dev, struct device_attribute *da,
+			const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm75_data *data = i2c_get_clientdata(client);
+	int nr = attr->index;
+	long temp = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp[nr] = LM75_TEMP_TO_REG(temp);
+	lm75_write_value(client, LM75_REG_TEMP[nr], data->temp[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
+			show_temp, set_temp, 1);
+static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO,
+			show_temp, set_temp, 2);
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
+
+static struct attribute *lm75_attributes[] = {
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
+
+	NULL
+};
+
+static const struct attribute_group lm75_group = {
+	.attrs = lm75_attributes,
+};
+
+/*-----------------------------------------------------------------------*/
+
+/* device probe and removal */
+
+static int
+lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
+{
+	struct lm75_data *data;
+	int status;
+	u8 set_mask, clr_mask;
+	int new;
+
+	if (!i2c_check_functionality(client->adapter,
+			I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA))
+		return -EIO;
+
+	data = kzalloc(sizeof(struct lm75_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
+
+	/* Set to LM75 resolution (9 bits, 1/2 degree C) and range.
+	 * Then tweak to be more precise when appropriate.
+	 */
+	set_mask = 0;
+	clr_mask = (1 << 0)			/* continuous conversions */
+		| (1 << 6) | (1 << 5);		/* 9-bit mode */
+
+	/* configure as specified */
+	status = lm75_read_value(client, LM75_REG_CONF);
+	if (status < 0) {
+		dev_dbg(&client->dev, "Can't read config? %d\n", status);
+		goto exit_free;
+	}
+	data->orig_conf = status;
+	new = status & ~clr_mask;
+	new |= set_mask;
+	if (status != new)
+		lm75_write_value(client, LM75_REG_CONF, new);
+	dev_dbg(&client->dev, "Config %02x\n", new);
+
+	/* Register sysfs hooks */
+	status = sysfs_create_group(&client->dev.kobj, &lm75_group);
+	if (status)
+		goto exit_free;
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		status = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	dev_info(&client->dev, "%s: sensor '%s'\n",
+		data->hwmon_dev->bus_id, client->name);
+
+	return 0;
+
+exit_remove:
+	sysfs_remove_group(&client->dev.kobj, &lm75_group);
+exit_free:
+	i2c_set_clientdata(client, NULL);
+	kfree(data);
+	return status;
+}
+
+static int lm75_remove(struct i2c_client *client)
+{
+	struct lm75_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &lm75_group);
+	lm75_write_value(client, LM75_REG_CONF, data->orig_conf);
+	i2c_set_clientdata(client, NULL);
+	kfree(data);
+	return 0;
+}
+
+static const struct i2c_device_id lm75_ids[] = {
+	{ "ds1775", ds1775, },
+	{ "ds75", ds75, },
+	{ "lm75", lm75, },
+	{ "lm75a", lm75a, },
+	{ "max6625", max6625, },
+	{ "max6626", max6626, },
+	{ "mcp980x", mcp980x, },
+	{ "stds75", stds75, },
+	{ "tcn75", tcn75, },
+	{ "tmp100", tmp100, },
+	{ "tmp101", tmp101, },
+	{ "tmp175", tmp175, },
+	{ "tmp275", tmp275, },
+	{ "tmp75", tmp75, },
+	{ /* LIST END */ }
+};
+MODULE_DEVICE_TABLE(i2c, lm75_ids);
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int lm75_detect(struct i2c_client *new_client, int kind,
+		       struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = new_client->adapter;
+	int i;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
+				     I2C_FUNC_SMBUS_WORD_DATA))
+		return -ENODEV;
+
+	/* Now, we do the remaining detection. There is no identification-
+	   dedicated register so we have to rely on several tricks:
+	   unused bits, registers cycling over 8-address boundaries,
+	   addresses 0x04-0x07 returning the last read value.
+	   The cycling+unused addresses combination is not tested,
+	   since it would significantly slow the detection down and would
+	   hardly add any value. */
+	if (kind < 0) {
+		int cur, conf, hyst, os;
+
+		/* Unused addresses */
+		cur = i2c_smbus_read_word_data(new_client, 0);
+		conf = i2c_smbus_read_byte_data(new_client, 1);
+		hyst = i2c_smbus_read_word_data(new_client, 2);
+		if (i2c_smbus_read_word_data(new_client, 4) != hyst
+		 || i2c_smbus_read_word_data(new_client, 5) != hyst
+		 || i2c_smbus_read_word_data(new_client, 6) != hyst
+		 || i2c_smbus_read_word_data(new_client, 7) != hyst)
+			return -ENODEV;
+		os = i2c_smbus_read_word_data(new_client, 3);
+		if (i2c_smbus_read_word_data(new_client, 4) != os
+		 || i2c_smbus_read_word_data(new_client, 5) != os
+		 || i2c_smbus_read_word_data(new_client, 6) != os
+		 || i2c_smbus_read_word_data(new_client, 7) != os)
+			return -ENODEV;
+
+		/* Unused bits */
+		if (conf & 0xe0)
+			return -ENODEV;
+
+		/* Addresses cycling */
+		for (i = 8; i < 0xff; i += 8)
+			if (i2c_smbus_read_byte_data(new_client, i + 1) != conf
+			 || i2c_smbus_read_word_data(new_client, i + 2) != hyst
+			 || i2c_smbus_read_word_data(new_client, i + 3) != os)
+				return -ENODEV;
+	}
+
+	/* NOTE: we treat "force=..." and "force_lm75=..." the same.
+	 * Only new-style driver binding distinguishes chip types.
+	 */
+	strlcpy(info->type, "lm75", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static struct i2c_driver lm75_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "lm75",
+	},
+	.probe		= lm75_probe,
+	.remove		= lm75_remove,
+	.id_table	= lm75_ids,
+	.detect		= lm75_detect,
+	.address_data	= &addr_data,
+};
+
+/*-----------------------------------------------------------------------*/
+
+/* register access */
+
+/* All registers are word-sized, except for the configuration register.
+   LM75 uses a high-byte first convention, which is exactly opposite to
+   the SMBus standard. */
+static int lm75_read_value(struct i2c_client *client, u8 reg)
+{
+	int value;
+
+	if (reg == LM75_REG_CONF)
+		return i2c_smbus_read_byte_data(client, reg);
+
+	value = i2c_smbus_read_word_data(client, reg);
+	return (value < 0) ? value : swab16(value);
+}
+
+static int lm75_write_value(struct i2c_client *client, u8 reg, u16 value)
+{
+	if (reg == LM75_REG_CONF)
+		return i2c_smbus_write_byte_data(client, reg, value);
+	else
+		return i2c_smbus_write_word_data(client, reg, swab16(value));
+}
+
+static struct lm75_data *lm75_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm75_data *data = i2c_get_clientdata(client);
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	    || !data->valid) {
+		int i;
+		dev_dbg(&client->dev, "Starting lm75 update\n");
+
+		for (i = 0; i < ARRAY_SIZE(data->temp); i++) {
+			int status;
+
+			status = lm75_read_value(client, LM75_REG_TEMP[i]);
+			if (status < 0)
+				dev_dbg(&client->dev, "reg %d, err %d\n",
+						LM75_REG_TEMP[i], status);
+			else
+				data->temp[i] = status;
+		}
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+/*-----------------------------------------------------------------------*/
+
+/* module glue */
+
+static int __init sensors_lm75_init(void)
+{
+	return i2c_add_driver(&lm75_driver);
+}
+
+static void __exit sensors_lm75_exit(void)
+{
+	i2c_del_driver(&lm75_driver);
+}
+
+MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>");
+MODULE_DESCRIPTION("LM75 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_lm75_init);
+module_exit(sensors_lm75_exit);
diff --git a/drivers/hwmon/lm75.h b/drivers/hwmon/lm75.h
new file mode 100644
index 0000000..7c93454
--- /dev/null
+++ b/drivers/hwmon/lm75.h
@@ -0,0 +1,49 @@
+/*
+    lm75.h - Part of lm_sensors, Linux kernel modules for hardware
+             monitoring
+    Copyright (c) 2003 Mark M. Hoffman <mhoffman@lightlink.com>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+    This file contains common code for encoding/decoding LM75 type
+    temperature readings, which are emulated by many of the chips
+    we support.  As the user is unlikely to load more than one driver
+    which contains this code, we don't worry about the wasted space.
+*/
+
+#include <linux/hwmon.h>
+
+/* straight from the datasheet */
+#define LM75_TEMP_MIN (-55000)
+#define LM75_TEMP_MAX 125000
+
+/* TEMP: 0.001C/bit (-55C to +125C)
+   REG: (0.5C/bit, two's complement) << 7 */
+static inline u16 LM75_TEMP_TO_REG(long temp)
+{
+	int ntemp = SENSORS_LIMIT(temp, LM75_TEMP_MIN, LM75_TEMP_MAX);
+	ntemp += (ntemp<0 ? -250 : 250);
+	return (u16)((ntemp / 500) << 7);
+}
+
+static inline int LM75_TEMP_FROM_REG(u16 reg)
+{
+	/* use integer division instead of equivalent right shift to
+	   guarantee arithmetic shift and preserve the sign */
+	return ((s16)reg / 128) * 500;
+}
+
diff --git a/drivers/hwmon/lm77.c b/drivers/hwmon/lm77.c
new file mode 100644
index 0000000..866b401
--- /dev/null
+++ b/drivers/hwmon/lm77.c
@@ -0,0 +1,444 @@
+/*
+    lm77.c - Part of lm_sensors, Linux kernel modules for hardware
+             monitoring
+
+    Copyright (c) 2004  Andras BALI <drewie@freemail.hu>
+
+    Heavily based on lm75.c by Frodo Looijaard <frodol@dds.nl>.  The LM77
+    is a temperature sensor and thermal window comparator with 0.5 deg
+    resolution made by National Semiconductor.  Complete datasheet can be
+    obtained at their site:
+       http://www.national.com/pf/LM/LM77.html
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b,
+						I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_1(lm77);
+
+/* The LM77 registers */
+#define LM77_REG_TEMP		0x00
+#define LM77_REG_CONF		0x01
+#define LM77_REG_TEMP_HYST	0x02
+#define LM77_REG_TEMP_CRIT	0x03
+#define LM77_REG_TEMP_MIN	0x04
+#define LM77_REG_TEMP_MAX	0x05
+
+/* Each client has this additional data */
+struct lm77_data {
+	struct device 		*hwmon_dev;
+	struct mutex		update_lock;
+	char			valid;
+	unsigned long		last_updated;	/* In jiffies */
+	int			temp_input;	/* Temperatures */
+	int			temp_crit;
+	int			temp_min;
+	int			temp_max;
+	int			temp_hyst;
+	u8			alarms;
+};
+
+static int lm77_probe(struct i2c_client *client,
+		      const struct i2c_device_id *id);
+static int lm77_detect(struct i2c_client *client, int kind,
+		       struct i2c_board_info *info);
+static void lm77_init_client(struct i2c_client *client);
+static int lm77_remove(struct i2c_client *client);
+static u16 lm77_read_value(struct i2c_client *client, u8 reg);
+static int lm77_write_value(struct i2c_client *client, u8 reg, u16 value);
+
+static struct lm77_data *lm77_update_device(struct device *dev);
+
+
+static const struct i2c_device_id lm77_id[] = {
+	{ "lm77", lm77 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, lm77_id);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver lm77_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "lm77",
+	},
+	.probe		= lm77_probe,
+	.remove		= lm77_remove,
+	.id_table	= lm77_id,
+	.detect		= lm77_detect,
+	.address_data	= &addr_data,
+};
+
+/* straight from the datasheet */
+#define LM77_TEMP_MIN (-55000)
+#define LM77_TEMP_MAX 125000
+
+/* In the temperature registers, the low 3 bits are not part of the
+   temperature values; they are the status bits. */
+static inline s16 LM77_TEMP_TO_REG(int temp)
+{
+	int ntemp = SENSORS_LIMIT(temp, LM77_TEMP_MIN, LM77_TEMP_MAX);
+	return (ntemp / 500) * 8;
+}
+
+static inline int LM77_TEMP_FROM_REG(s16 reg)
+{
+	return (reg / 8) * 500;
+}
+
+/* sysfs stuff */
+
+/* read routines for temperature limits */
+#define show(value)	\
+static ssize_t show_##value(struct device *dev, struct device_attribute *attr, char *buf)	\
+{								\
+	struct lm77_data *data = lm77_update_device(dev);	\
+	return sprintf(buf, "%d\n", data->value);		\
+}
+
+show(temp_input);
+show(temp_crit);
+show(temp_min);
+show(temp_max);
+
+/* read routines for hysteresis values */
+static ssize_t show_temp_crit_hyst(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct lm77_data *data = lm77_update_device(dev);
+	return sprintf(buf, "%d\n", data->temp_crit - data->temp_hyst);
+}
+static ssize_t show_temp_min_hyst(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct lm77_data *data = lm77_update_device(dev);
+	return sprintf(buf, "%d\n", data->temp_min + data->temp_hyst);
+}
+static ssize_t show_temp_max_hyst(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct lm77_data *data = lm77_update_device(dev);
+	return sprintf(buf, "%d\n", data->temp_max - data->temp_hyst);
+}
+
+/* write routines */
+#define set(value, reg)	\
+static ssize_t set_##value(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)	\
+{										\
+	struct i2c_client *client = to_i2c_client(dev);				\
+	struct lm77_data *data = i2c_get_clientdata(client);			\
+	long val = simple_strtol(buf, NULL, 10);				\
+										\
+	mutex_lock(&data->update_lock);						\
+	data->value = val;				\
+	lm77_write_value(client, reg, LM77_TEMP_TO_REG(data->value));		\
+	mutex_unlock(&data->update_lock);					\
+	return count;								\
+}
+
+set(temp_min, LM77_REG_TEMP_MIN);
+set(temp_max, LM77_REG_TEMP_MAX);
+
+/* hysteresis is stored as a relative value on the chip, so it has to be
+   converted first */
+static ssize_t set_temp_crit_hyst(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm77_data *data = i2c_get_clientdata(client);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_hyst = data->temp_crit - val;
+	lm77_write_value(client, LM77_REG_TEMP_HYST,
+			 LM77_TEMP_TO_REG(data->temp_hyst));
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+/* preserve hysteresis when setting T_crit */
+static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm77_data *data = i2c_get_clientdata(client);
+	long val = simple_strtoul(buf, NULL, 10);
+	int oldcrithyst;
+	
+	mutex_lock(&data->update_lock);
+	oldcrithyst = data->temp_crit - data->temp_hyst;
+	data->temp_crit = val;
+	data->temp_hyst = data->temp_crit - oldcrithyst;
+	lm77_write_value(client, LM77_REG_TEMP_CRIT,
+			 LM77_TEMP_TO_REG(data->temp_crit));
+	lm77_write_value(client, LM77_REG_TEMP_HYST,
+			 LM77_TEMP_TO_REG(data->temp_hyst));
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	struct lm77_data *data = lm77_update_device(dev);
+	return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
+}
+
+static DEVICE_ATTR(temp1_input, S_IRUGO,
+		   show_temp_input, NULL);
+static DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO,
+		   show_temp_crit, set_temp_crit);
+static DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO,
+		   show_temp_min, set_temp_min);
+static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
+		   show_temp_max, set_temp_max);
+
+static DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO,
+		   show_temp_crit_hyst, set_temp_crit_hyst);
+static DEVICE_ATTR(temp1_min_hyst, S_IRUGO,
+		   show_temp_min_hyst, NULL);
+static DEVICE_ATTR(temp1_max_hyst, S_IRUGO,
+		   show_temp_max_hyst, NULL);
+
+static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 1);
+
+static struct attribute *lm77_attributes[] = {
+	&dev_attr_temp1_input.attr,
+	&dev_attr_temp1_crit.attr,
+	&dev_attr_temp1_min.attr,
+	&dev_attr_temp1_max.attr,
+	&dev_attr_temp1_crit_hyst.attr,
+	&dev_attr_temp1_min_hyst.attr,
+	&dev_attr_temp1_max_hyst.attr,
+	&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group lm77_group = {
+	.attrs = lm77_attributes,
+};
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int lm77_detect(struct i2c_client *new_client, int kind,
+		       struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = new_client->adapter;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
+				     I2C_FUNC_SMBUS_WORD_DATA))
+		return -ENODEV;
+
+	/* Here comes the remaining detection.  Since the LM77 has no
+	   register dedicated to identification, we have to rely on the
+	   following tricks:
+
+	   1. the high 4 bits represent the sign and thus they should
+	      always be the same
+	   2. the high 3 bits are unused in the configuration register
+	   3. addresses 0x06 and 0x07 return the last read value
+	   4. registers cycling over 8-address boundaries
+
+	   Word-sized registers are high-byte first. */
+	if (kind < 0) {
+		int i, cur, conf, hyst, crit, min, max;
+
+		/* addresses cycling */
+		cur = i2c_smbus_read_word_data(new_client, 0);
+		conf = i2c_smbus_read_byte_data(new_client, 1);
+		hyst = i2c_smbus_read_word_data(new_client, 2);
+		crit = i2c_smbus_read_word_data(new_client, 3);
+		min = i2c_smbus_read_word_data(new_client, 4);
+		max = i2c_smbus_read_word_data(new_client, 5);
+		for (i = 8; i <= 0xff; i += 8)
+			if (i2c_smbus_read_byte_data(new_client, i + 1) != conf
+			    || i2c_smbus_read_word_data(new_client, i + 2) != hyst
+			    || i2c_smbus_read_word_data(new_client, i + 3) != crit
+			    || i2c_smbus_read_word_data(new_client, i + 4) != min
+			    || i2c_smbus_read_word_data(new_client, i + 5) != max)
+				return -ENODEV;
+
+		/* sign bits */
+		if (((cur & 0x00f0) != 0xf0 && (cur & 0x00f0) != 0x0)
+		    || ((hyst & 0x00f0) != 0xf0 && (hyst & 0x00f0) != 0x0)
+		    || ((crit & 0x00f0) != 0xf0 && (crit & 0x00f0) != 0x0)
+		    || ((min & 0x00f0) != 0xf0 && (min & 0x00f0) != 0x0)
+		    || ((max & 0x00f0) != 0xf0 && (max & 0x00f0) != 0x0))
+			return -ENODEV;
+
+		/* unused bits */
+		if (conf & 0xe0)
+			return -ENODEV;
+
+		/* 0x06 and 0x07 return the last read value */
+		cur = i2c_smbus_read_word_data(new_client, 0);
+		if (i2c_smbus_read_word_data(new_client, 6) != cur
+		    || i2c_smbus_read_word_data(new_client, 7) != cur)
+			return -ENODEV;
+		hyst = i2c_smbus_read_word_data(new_client, 2);
+		if (i2c_smbus_read_word_data(new_client, 6) != hyst
+		    || i2c_smbus_read_word_data(new_client, 7) != hyst)
+			return -ENODEV;
+		min = i2c_smbus_read_word_data(new_client, 4);
+		if (i2c_smbus_read_word_data(new_client, 6) != min
+		    || i2c_smbus_read_word_data(new_client, 7) != min)
+			return -ENODEV;
+
+	}
+
+	strlcpy(info->type, "lm77", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int lm77_probe(struct i2c_client *new_client,
+		      const struct i2c_device_id *id)
+{
+	struct lm77_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct lm77_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(new_client, data);
+	data->valid = 0;
+	mutex_init(&data->update_lock);
+
+	/* Initialize the LM77 chip */
+	lm77_init_client(new_client);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&new_client->dev.kobj, &lm77_group)))
+		goto exit_free;
+
+	data->hwmon_dev = hwmon_device_register(&new_client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	return 0;
+
+exit_remove:
+	sysfs_remove_group(&new_client->dev.kobj, &lm77_group);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+static int lm77_remove(struct i2c_client *client)
+{
+	struct lm77_data *data = i2c_get_clientdata(client);
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &lm77_group);
+	kfree(data);
+	return 0;
+}
+
+/* All registers are word-sized, except for the configuration register.
+   The LM77 uses the high-byte first convention. */
+static u16 lm77_read_value(struct i2c_client *client, u8 reg)
+{
+	if (reg == LM77_REG_CONF)
+		return i2c_smbus_read_byte_data(client, reg);
+	else
+		return swab16(i2c_smbus_read_word_data(client, reg));
+}
+
+static int lm77_write_value(struct i2c_client *client, u8 reg, u16 value)
+{
+	if (reg == LM77_REG_CONF)
+		return i2c_smbus_write_byte_data(client, reg, value);
+	else
+		return i2c_smbus_write_word_data(client, reg, swab16(value));
+}
+
+static void lm77_init_client(struct i2c_client *client)
+{
+	/* Initialize the LM77 chip - turn off shutdown mode */
+	int conf = lm77_read_value(client, LM77_REG_CONF);
+	if (conf & 1)
+		lm77_write_value(client, LM77_REG_CONF, conf & 0xfe);
+}
+
+static struct lm77_data *lm77_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm77_data *data = i2c_get_clientdata(client);
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	    || !data->valid) {
+		dev_dbg(&client->dev, "Starting lm77 update\n");
+		data->temp_input =
+			LM77_TEMP_FROM_REG(lm77_read_value(client,
+							   LM77_REG_TEMP));
+		data->temp_hyst =
+			LM77_TEMP_FROM_REG(lm77_read_value(client,
+							   LM77_REG_TEMP_HYST));
+		data->temp_crit =
+			LM77_TEMP_FROM_REG(lm77_read_value(client,
+							   LM77_REG_TEMP_CRIT));
+		data->temp_min =
+			LM77_TEMP_FROM_REG(lm77_read_value(client,
+							   LM77_REG_TEMP_MIN));
+		data->temp_max =
+			LM77_TEMP_FROM_REG(lm77_read_value(client,
+							   LM77_REG_TEMP_MAX));
+		data->alarms =
+			lm77_read_value(client, LM77_REG_TEMP) & 0x0007;
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init sensors_lm77_init(void)
+{
+	return i2c_add_driver(&lm77_driver);
+}
+
+static void __exit sensors_lm77_exit(void)
+{
+	i2c_del_driver(&lm77_driver);
+}
+
+MODULE_AUTHOR("Andras BALI <drewie@freemail.hu>");
+MODULE_DESCRIPTION("LM77 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_lm77_init);
+module_exit(sensors_lm77_exit);
diff --git a/drivers/hwmon/lm78.c b/drivers/hwmon/lm78.c
new file mode 100644
index 0000000..b5e3b28
--- /dev/null
+++ b/drivers/hwmon/lm78.c
@@ -0,0 +1,1039 @@
+/*
+    lm78.c - Part of lm_sensors, Linux kernel modules for hardware
+             monitoring
+    Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl> 
+    Copyright (c) 2007        Jean Delvare <khali@linux-fr.org>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/ioport.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-vid.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <asm/io.h>
+
+/* ISA device, if found */
+static struct platform_device *pdev;
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d,
+						0x2e, 0x2f, I2C_CLIENT_END };
+static unsigned short isa_address = 0x290;
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_2(lm78, lm79);
+
+/* Many LM78 constants specified below */
+
+/* Length of ISA address segment */
+#define LM78_EXTENT 8
+
+/* Where are the ISA address/data registers relative to the base address */
+#define LM78_ADDR_REG_OFFSET 5
+#define LM78_DATA_REG_OFFSET 6
+
+/* The LM78 registers */
+#define LM78_REG_IN_MAX(nr) (0x2b + (nr) * 2)
+#define LM78_REG_IN_MIN(nr) (0x2c + (nr) * 2)
+#define LM78_REG_IN(nr) (0x20 + (nr))
+
+#define LM78_REG_FAN_MIN(nr) (0x3b + (nr))
+#define LM78_REG_FAN(nr) (0x28 + (nr))
+
+#define LM78_REG_TEMP 0x27
+#define LM78_REG_TEMP_OVER 0x39
+#define LM78_REG_TEMP_HYST 0x3a
+
+#define LM78_REG_ALARM1 0x41
+#define LM78_REG_ALARM2 0x42
+
+#define LM78_REG_VID_FANDIV 0x47
+
+#define LM78_REG_CONFIG 0x40
+#define LM78_REG_CHIPID 0x49
+#define LM78_REG_I2C_ADDR 0x48
+
+
+/* Conversions. Rounding and limit checking is only done on the TO_REG 
+   variants. */
+
+/* IN: mV, (0V to 4.08V)
+   REG: 16mV/bit */
+static inline u8 IN_TO_REG(unsigned long val)
+{
+	unsigned long nval = SENSORS_LIMIT(val, 0, 4080);
+	return (nval + 8) / 16;
+}
+#define IN_FROM_REG(val) ((val) *  16)
+
+static inline u8 FAN_TO_REG(long rpm, int div)
+{
+	if (rpm <= 0)
+		return 255;
+	return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
+}
+
+static inline int FAN_FROM_REG(u8 val, int div)
+{
+	return val==0 ? -1 : val==255 ? 0 : 1350000/(val*div);
+}
+
+/* TEMP: mC (-128C to +127C)
+   REG: 1C/bit, two's complement */
+static inline s8 TEMP_TO_REG(int val)
+{
+	int nval = SENSORS_LIMIT(val, -128000, 127000) ;
+	return nval<0 ? (nval-500)/1000 : (nval+500)/1000;
+}
+
+static inline int TEMP_FROM_REG(s8 val)
+{
+	return val * 1000;
+}
+
+#define DIV_FROM_REG(val) (1 << (val))
+
+struct lm78_data {
+	struct i2c_client *client;
+	struct device *hwmon_dev;
+	struct mutex lock;
+	enum chips type;
+
+	/* For ISA device only */
+	const char *name;
+	int isa_addr;
+
+	struct mutex update_lock;
+	char valid;		/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+
+	u8 in[7];		/* Register value */
+	u8 in_max[7];		/* Register value */
+	u8 in_min[7];		/* Register value */
+	u8 fan[3];		/* Register value */
+	u8 fan_min[3];		/* Register value */
+	s8 temp;		/* Register value */
+	s8 temp_over;		/* Register value */
+	s8 temp_hyst;		/* Register value */
+	u8 fan_div[3];		/* Register encoding, shifted right */
+	u8 vid;			/* Register encoding, combined */
+	u16 alarms;		/* Register encoding, combined */
+};
+
+
+static int lm78_i2c_detect(struct i2c_client *client, int kind,
+			   struct i2c_board_info *info);
+static int lm78_i2c_probe(struct i2c_client *client,
+			  const struct i2c_device_id *id);
+static int lm78_i2c_remove(struct i2c_client *client);
+
+static int __devinit lm78_isa_probe(struct platform_device *pdev);
+static int __devexit lm78_isa_remove(struct platform_device *pdev);
+
+static int lm78_read_value(struct lm78_data *data, u8 reg);
+static int lm78_write_value(struct lm78_data *data, u8 reg, u8 value);
+static struct lm78_data *lm78_update_device(struct device *dev);
+static void lm78_init_device(struct lm78_data *data);
+
+
+static const struct i2c_device_id lm78_i2c_id[] = {
+	{ "lm78", lm78 },
+	{ "lm79", lm79 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, lm78_i2c_id);
+
+static struct i2c_driver lm78_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "lm78",
+	},
+	.probe		= lm78_i2c_probe,
+	.remove		= lm78_i2c_remove,
+	.id_table	= lm78_i2c_id,
+	.detect		= lm78_i2c_detect,
+	.address_data	= &addr_data,
+};
+
+static struct platform_driver lm78_isa_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= "lm78",
+	},
+	.probe		= lm78_isa_probe,
+	.remove		= lm78_isa_remove,
+};
+
+
+/* 7 Voltages */
+static ssize_t show_in(struct device *dev, struct device_attribute *da,
+		       char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct lm78_data *data = lm78_update_device(dev);
+	return sprintf(buf, "%d\n", IN_FROM_REG(data->in[attr->index]));
+}
+
+static ssize_t show_in_min(struct device *dev, struct device_attribute *da,
+			   char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct lm78_data *data = lm78_update_device(dev);
+	return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[attr->index]));
+}
+
+static ssize_t show_in_max(struct device *dev, struct device_attribute *da,
+			   char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct lm78_data *data = lm78_update_device(dev);
+	return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[attr->index]));
+}
+
+static ssize_t set_in_min(struct device *dev, struct device_attribute *da,
+			  const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct lm78_data *data = dev_get_drvdata(dev);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+	int nr = attr->index;
+
+	mutex_lock(&data->update_lock);
+	data->in_min[nr] = IN_TO_REG(val);
+	lm78_write_value(data, LM78_REG_IN_MIN(nr), data->in_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t set_in_max(struct device *dev, struct device_attribute *da,
+			  const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct lm78_data *data = dev_get_drvdata(dev);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+	int nr = attr->index;
+
+	mutex_lock(&data->update_lock);
+	data->in_max[nr] = IN_TO_REG(val);
+	lm78_write_value(data, LM78_REG_IN_MAX(nr), data->in_max[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+	
+#define show_in_offset(offset)					\
+static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO,		\
+		show_in, NULL, offset);				\
+static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,	\
+		show_in_min, set_in_min, offset);		\
+static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,	\
+		show_in_max, set_in_max, offset);
+
+show_in_offset(0);
+show_in_offset(1);
+show_in_offset(2);
+show_in_offset(3);
+show_in_offset(4);
+show_in_offset(5);
+show_in_offset(6);
+
+/* Temperature */
+static ssize_t show_temp(struct device *dev, struct device_attribute *da,
+			 char *buf)
+{
+	struct lm78_data *data = lm78_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp));
+}
+
+static ssize_t show_temp_over(struct device *dev, struct device_attribute *da,
+			      char *buf)
+{
+	struct lm78_data *data = lm78_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_over));
+}
+
+static ssize_t set_temp_over(struct device *dev, struct device_attribute *da,
+			     const char *buf, size_t count)
+{
+	struct lm78_data *data = dev_get_drvdata(dev);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_over = TEMP_TO_REG(val);
+	lm78_write_value(data, LM78_REG_TEMP_OVER, data->temp_over);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_temp_hyst(struct device *dev, struct device_attribute *da,
+			      char *buf)
+{
+	struct lm78_data *data = lm78_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_hyst));
+}
+
+static ssize_t set_temp_hyst(struct device *dev, struct device_attribute *da,
+			     const char *buf, size_t count)
+{
+	struct lm78_data *data = dev_get_drvdata(dev);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_hyst = TEMP_TO_REG(val);
+	lm78_write_value(data, LM78_REG_TEMP_HYST, data->temp_hyst);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL);
+static DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR,
+		show_temp_over, set_temp_over);
+static DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR,
+		show_temp_hyst, set_temp_hyst);
+
+/* 3 Fans */
+static ssize_t show_fan(struct device *dev, struct device_attribute *da,
+			char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct lm78_data *data = lm78_update_device(dev);
+	int nr = attr->index;
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],
+		DIV_FROM_REG(data->fan_div[nr])) );
+}
+
+static ssize_t show_fan_min(struct device *dev, struct device_attribute *da,
+			    char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct lm78_data *data = lm78_update_device(dev);
+	int nr = attr->index;
+	return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr],
+		DIV_FROM_REG(data->fan_div[nr])) );
+}
+
+static ssize_t set_fan_min(struct device *dev, struct device_attribute *da,
+			   const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct lm78_data *data = dev_get_drvdata(dev);
+	int nr = attr->index;
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
+	lm78_write_value(data, LM78_REG_FAN_MIN(nr), data->fan_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_fan_div(struct device *dev, struct device_attribute *da,
+			    char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct lm78_data *data = lm78_update_device(dev);
+	return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[attr->index]));
+}
+
+/* Note: we save and restore the fan minimum here, because its value is
+   determined in part by the fan divisor.  This follows the principle of
+   least surprise; the user doesn't expect the fan minimum to change just
+   because the divisor changed. */
+static ssize_t set_fan_div(struct device *dev, struct device_attribute *da,
+			   const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct lm78_data *data = dev_get_drvdata(dev);
+	int nr = attr->index;
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+	unsigned long min;
+	u8 reg;
+
+	mutex_lock(&data->update_lock);
+	min = FAN_FROM_REG(data->fan_min[nr],
+			   DIV_FROM_REG(data->fan_div[nr]));
+
+	switch (val) {
+	case 1: data->fan_div[nr] = 0; break;
+	case 2: data->fan_div[nr] = 1; break;
+	case 4: data->fan_div[nr] = 2; break;
+	case 8: data->fan_div[nr] = 3; break;
+	default:
+		dev_err(dev, "fan_div value %ld not "
+			"supported. Choose one of 1, 2, 4 or 8!\n", val);
+		mutex_unlock(&data->update_lock);
+		return -EINVAL;
+	}
+
+	reg = lm78_read_value(data, LM78_REG_VID_FANDIV);
+	switch (nr) {
+	case 0:
+		reg = (reg & 0xcf) | (data->fan_div[nr] << 4);
+		break;
+	case 1:
+		reg = (reg & 0x3f) | (data->fan_div[nr] << 6);
+		break;
+	}
+	lm78_write_value(data, LM78_REG_VID_FANDIV, reg);
+
+	data->fan_min[nr] =
+		FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
+	lm78_write_value(data, LM78_REG_FAN_MIN(nr), data->fan_min[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+#define show_fan_offset(offset)				\
+static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO,		\
+		show_fan, NULL, offset - 1);			\
+static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,	\
+		show_fan_min, set_fan_min, offset - 1);
+
+show_fan_offset(1);
+show_fan_offset(2);
+show_fan_offset(3);
+
+/* Fan 3 divisor is locked in H/W */
+static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR,
+		show_fan_div, set_fan_div, 0);
+static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR,
+		show_fan_div, set_fan_div, 1);
+static SENSOR_DEVICE_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2);
+
+/* VID */
+static ssize_t show_vid(struct device *dev, struct device_attribute *da,
+			char *buf)
+{
+	struct lm78_data *data = lm78_update_device(dev);
+	return sprintf(buf, "%d\n", vid_from_reg(data->vid, 82));
+}
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
+
+/* Alarms */
+static ssize_t show_alarms(struct device *dev, struct device_attribute *da,
+			   char *buf)
+{
+	struct lm78_data *data = lm78_update_device(dev);
+	return sprintf(buf, "%u\n", data->alarms);
+}
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *da,
+			  char *buf)
+{
+	struct lm78_data *data = lm78_update_device(dev);
+	int nr = to_sensor_dev_attr(da)->index;
+	return sprintf(buf, "%u\n", (data->alarms >> nr) & 1);
+}
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 9);
+static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 10);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7);
+static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
+
+static struct attribute *lm78_attributes[] = {
+	&sensor_dev_attr_in0_input.dev_attr.attr,
+	&sensor_dev_attr_in0_min.dev_attr.attr,
+	&sensor_dev_attr_in0_max.dev_attr.attr,
+	&sensor_dev_attr_in0_alarm.dev_attr.attr,
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in1_min.dev_attr.attr,
+	&sensor_dev_attr_in1_max.dev_attr.attr,
+	&sensor_dev_attr_in1_alarm.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in2_min.dev_attr.attr,
+	&sensor_dev_attr_in2_max.dev_attr.attr,
+	&sensor_dev_attr_in2_alarm.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in3_min.dev_attr.attr,
+	&sensor_dev_attr_in3_max.dev_attr.attr,
+	&sensor_dev_attr_in3_alarm.dev_attr.attr,
+	&sensor_dev_attr_in4_input.dev_attr.attr,
+	&sensor_dev_attr_in4_min.dev_attr.attr,
+	&sensor_dev_attr_in4_max.dev_attr.attr,
+	&sensor_dev_attr_in4_alarm.dev_attr.attr,
+	&sensor_dev_attr_in5_input.dev_attr.attr,
+	&sensor_dev_attr_in5_min.dev_attr.attr,
+	&sensor_dev_attr_in5_max.dev_attr.attr,
+	&sensor_dev_attr_in5_alarm.dev_attr.attr,
+	&sensor_dev_attr_in6_input.dev_attr.attr,
+	&sensor_dev_attr_in6_min.dev_attr.attr,
+	&sensor_dev_attr_in6_max.dev_attr.attr,
+	&sensor_dev_attr_in6_alarm.dev_attr.attr,
+	&dev_attr_temp1_input.attr,
+	&dev_attr_temp1_max.attr,
+	&dev_attr_temp1_max_hyst.attr,
+	&sensor_dev_attr_temp1_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_div.dev_attr.attr,
+	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_div.dev_attr.attr,
+	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan3_input.dev_attr.attr,
+	&sensor_dev_attr_fan3_min.dev_attr.attr,
+	&sensor_dev_attr_fan3_div.dev_attr.attr,
+	&sensor_dev_attr_fan3_alarm.dev_attr.attr,
+	&dev_attr_alarms.attr,
+	&dev_attr_cpu0_vid.attr,
+
+	NULL
+};
+
+static const struct attribute_group lm78_group = {
+	.attrs = lm78_attributes,
+};
+
+/* I2C devices get this name attribute automatically, but for ISA devices
+   we must create it by ourselves. */
+static ssize_t show_name(struct device *dev, struct device_attribute
+			 *devattr, char *buf)
+{
+	struct lm78_data *data = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%s\n", data->name);
+}
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+
+/* Returns 1 if the I2C chip appears to be an alias of the ISA chip */
+static int lm78_alias_detect(struct i2c_client *client, u8 chipid)
+{
+	struct lm78_data *isa;
+	int i;
+
+	if (!pdev)	/* No ISA chip */
+		return 0;
+	isa = platform_get_drvdata(pdev);
+
+	if (lm78_read_value(isa, LM78_REG_I2C_ADDR) != client->addr)
+		return 0;	/* Address doesn't match */
+	if ((lm78_read_value(isa, LM78_REG_CHIPID) & 0xfe) != (chipid & 0xfe))
+		return 0;	/* Chip type doesn't match */
+
+	/* We compare all the limit registers, the config register and the
+	 * interrupt mask registers */
+	for (i = 0x2b; i <= 0x3d; i++) {
+		if (lm78_read_value(isa, i) !=
+		    i2c_smbus_read_byte_data(client, i))
+			return 0;
+	}
+	if (lm78_read_value(isa, LM78_REG_CONFIG) !=
+	    i2c_smbus_read_byte_data(client, LM78_REG_CONFIG))
+		return 0;
+	for (i = 0x43; i <= 0x46; i++) {
+		if (lm78_read_value(isa, i) !=
+		    i2c_smbus_read_byte_data(client, i))
+			return 0;
+	}
+
+	return 1;
+}
+
+static int lm78_i2c_detect(struct i2c_client *client, int kind,
+			   struct i2c_board_info *info)
+{
+	int i;
+	struct lm78_data *isa = pdev ? platform_get_drvdata(pdev) : NULL;
+	const char *client_name;
+	struct i2c_adapter *adapter = client->adapter;
+	int address = client->addr;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	/* We block updates of the ISA device to minimize the risk of
+	   concurrent access to the same LM78 chip through different
+	   interfaces. */
+	if (isa)
+		mutex_lock(&isa->update_lock);
+
+	if (kind < 0) {
+		if ((i2c_smbus_read_byte_data(client, LM78_REG_CONFIG) & 0x80)
+		 || i2c_smbus_read_byte_data(client, LM78_REG_I2C_ADDR)
+		    != address)
+			goto err_nodev;
+
+		/* Explicitly prevent the misdetection of Winbond chips */
+		i = i2c_smbus_read_byte_data(client, 0x4f);
+		if (i == 0xa3 || i == 0x5c)
+			goto err_nodev;
+	}
+
+	/* Determine the chip type. */
+	if (kind <= 0) {
+		i = i2c_smbus_read_byte_data(client, LM78_REG_CHIPID);
+		if (i == 0x00 || i == 0x20	/* LM78 */
+		 || i == 0x40)			/* LM78-J */
+			kind = lm78;
+		else if ((i & 0xfe) == 0xc0)
+			kind = lm79;
+		else {
+			if (kind == 0)
+				dev_warn(&adapter->dev, "Ignoring 'force' "
+					"parameter for unknown chip at "
+					"adapter %d, address 0x%02x\n",
+					i2c_adapter_id(adapter), address);
+			goto err_nodev;
+		}
+
+		if (lm78_alias_detect(client, i)) {
+			dev_dbg(&adapter->dev, "Device at 0x%02x appears to "
+				"be the same as ISA device\n", address);
+			goto err_nodev;
+		}
+	}
+
+	if (isa)
+		mutex_unlock(&isa->update_lock);
+
+	switch (kind) {
+	case lm79:
+		client_name = "lm79";
+		break;
+	default:
+		client_name = "lm78";
+	}
+	strlcpy(info->type, client_name, I2C_NAME_SIZE);
+
+	return 0;
+
+ err_nodev:
+	if (isa)
+		mutex_unlock(&isa->update_lock);
+	return -ENODEV;
+}
+
+static int lm78_i2c_probe(struct i2c_client *client,
+			  const struct i2c_device_id *id)
+{
+	struct lm78_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct lm78_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	i2c_set_clientdata(client, data);
+	data->client = client;
+	data->type = id->driver_data;
+
+	/* Initialize the LM78 chip */
+	lm78_init_device(data);
+
+	/* Register sysfs hooks */
+	err = sysfs_create_group(&client->dev.kobj, &lm78_group);
+	if (err)
+		goto ERROR3;
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto ERROR4;
+	}
+
+	return 0;
+
+ERROR4:
+	sysfs_remove_group(&client->dev.kobj, &lm78_group);
+ERROR3:
+	kfree(data);
+	return err;
+}
+
+static int lm78_i2c_remove(struct i2c_client *client)
+{
+	struct lm78_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &lm78_group);
+	kfree(data);
+
+	return 0;
+}
+
+static int __devinit lm78_isa_probe(struct platform_device *pdev)
+{
+	int err;
+	struct lm78_data *data;
+	struct resource *res;
+
+	/* Reserve the ISA region */
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	if (!request_region(res->start + LM78_ADDR_REG_OFFSET, 2, "lm78")) {
+		err = -EBUSY;
+		goto exit;
+	}
+
+	if (!(data = kzalloc(sizeof(struct lm78_data), GFP_KERNEL))) {
+		err = -ENOMEM;
+		goto exit_release_region;
+	}
+	mutex_init(&data->lock);
+	data->isa_addr = res->start;
+	platform_set_drvdata(pdev, data);
+
+	if (lm78_read_value(data, LM78_REG_CHIPID) & 0x80) {
+		data->type = lm79;
+		data->name = "lm79";
+	} else {
+		data->type = lm78;
+		data->name = "lm78";
+	}
+
+	/* Initialize the LM78 chip */
+	lm78_init_device(data);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&pdev->dev.kobj, &lm78_group))
+	 || (err = device_create_file(&pdev->dev, &dev_attr_name)))
+		goto exit_remove_files;
+
+	data->hwmon_dev = hwmon_device_register(&pdev->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove_files;
+	}
+
+	return 0;
+
+ exit_remove_files:
+	sysfs_remove_group(&pdev->dev.kobj, &lm78_group);
+	device_remove_file(&pdev->dev, &dev_attr_name);
+	kfree(data);
+ exit_release_region:
+	release_region(res->start + LM78_ADDR_REG_OFFSET, 2);
+ exit:
+	return err;
+}
+
+static int __devexit lm78_isa_remove(struct platform_device *pdev)
+{
+	struct lm78_data *data = platform_get_drvdata(pdev);
+	struct resource *res;
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&pdev->dev.kobj, &lm78_group);
+	device_remove_file(&pdev->dev, &dev_attr_name);
+	kfree(data);
+
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	release_region(res->start + LM78_ADDR_REG_OFFSET, 2);
+
+	return 0;
+}
+
+/* The SMBus locks itself, but ISA access must be locked explicitly! 
+   We don't want to lock the whole ISA bus, so we lock each client
+   separately.
+   We ignore the LM78 BUSY flag at this moment - it could lead to deadlocks,
+   would slow down the LM78 access and should not be necessary.  */
+static int lm78_read_value(struct lm78_data *data, u8 reg)
+{
+	struct i2c_client *client = data->client;
+
+	if (!client) { /* ISA device */
+		int res;
+		mutex_lock(&data->lock);
+		outb_p(reg, data->isa_addr + LM78_ADDR_REG_OFFSET);
+		res = inb_p(data->isa_addr + LM78_DATA_REG_OFFSET);
+		mutex_unlock(&data->lock);
+		return res;
+	} else
+		return i2c_smbus_read_byte_data(client, reg);
+}
+
+/* The SMBus locks itself, but ISA access muse be locked explicitly! 
+   We don't want to lock the whole ISA bus, so we lock each client
+   separately.
+   We ignore the LM78 BUSY flag at this moment - it could lead to deadlocks,
+   would slow down the LM78 access and should not be necessary. 
+   There are some ugly typecasts here, but the good new is - they should
+   nowhere else be necessary! */
+static int lm78_write_value(struct lm78_data *data, u8 reg, u8 value)
+{
+	struct i2c_client *client = data->client;
+
+	if (!client) { /* ISA device */
+		mutex_lock(&data->lock);
+		outb_p(reg, data->isa_addr + LM78_ADDR_REG_OFFSET);
+		outb_p(value, data->isa_addr + LM78_DATA_REG_OFFSET);
+		mutex_unlock(&data->lock);
+		return 0;
+	} else
+		return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+static void lm78_init_device(struct lm78_data *data)
+{
+	u8 config;
+	int i;
+
+	/* Start monitoring */
+	config = lm78_read_value(data, LM78_REG_CONFIG);
+	if ((config & 0x09) != 0x01)
+		lm78_write_value(data, LM78_REG_CONFIG,
+				 (config & 0xf7) | 0x01);
+
+	/* A few vars need to be filled upon startup */
+	for (i = 0; i < 3; i++) {
+		data->fan_min[i] = lm78_read_value(data,
+					LM78_REG_FAN_MIN(i));
+	}
+
+	mutex_init(&data->update_lock);
+}
+
+static struct lm78_data *lm78_update_device(struct device *dev)
+{
+	struct lm78_data *data = dev_get_drvdata(dev);
+	int i;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	    || !data->valid) {
+
+		dev_dbg(dev, "Starting lm78 update\n");
+
+		for (i = 0; i <= 6; i++) {
+			data->in[i] =
+			    lm78_read_value(data, LM78_REG_IN(i));
+			data->in_min[i] =
+			    lm78_read_value(data, LM78_REG_IN_MIN(i));
+			data->in_max[i] =
+			    lm78_read_value(data, LM78_REG_IN_MAX(i));
+		}
+		for (i = 0; i < 3; i++) {
+			data->fan[i] =
+			    lm78_read_value(data, LM78_REG_FAN(i));
+			data->fan_min[i] =
+			    lm78_read_value(data, LM78_REG_FAN_MIN(i));
+		}
+		data->temp = lm78_read_value(data, LM78_REG_TEMP);
+		data->temp_over =
+		    lm78_read_value(data, LM78_REG_TEMP_OVER);
+		data->temp_hyst =
+		    lm78_read_value(data, LM78_REG_TEMP_HYST);
+		i = lm78_read_value(data, LM78_REG_VID_FANDIV);
+		data->vid = i & 0x0f;
+		if (data->type == lm79)
+			data->vid |=
+			    (lm78_read_value(data, LM78_REG_CHIPID) &
+			     0x01) << 4;
+		else
+			data->vid |= 0x10;
+		data->fan_div[0] = (i >> 4) & 0x03;
+		data->fan_div[1] = i >> 6;
+		data->alarms = lm78_read_value(data, LM78_REG_ALARM1) +
+		    (lm78_read_value(data, LM78_REG_ALARM2) << 8);
+		data->last_updated = jiffies;
+		data->valid = 1;
+
+		data->fan_div[2] = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+/* return 1 if a supported chip is found, 0 otherwise */
+static int __init lm78_isa_found(unsigned short address)
+{
+	int val, save, found = 0;
+
+	/* We have to request the region in two parts because some
+	   boards declare base+4 to base+7 as a PNP device */
+	if (!request_region(address, 4, "lm78")) {
+		pr_debug("lm78: Failed to request low part of region\n");
+		return 0;
+	}
+	if (!request_region(address + 4, 4, "lm78")) {
+		pr_debug("lm78: Failed to request high part of region\n");
+		release_region(address, 4);
+		return 0;
+	}
+
+#define REALLY_SLOW_IO
+	/* We need the timeouts for at least some LM78-like
+	   chips. But only if we read 'undefined' registers. */
+	val = inb_p(address + 1);
+	if (inb_p(address + 2) != val
+	 || inb_p(address + 3) != val
+	 || inb_p(address + 7) != val)
+		goto release;
+#undef REALLY_SLOW_IO
+
+	/* We should be able to change the 7 LSB of the address port. The
+	   MSB (busy flag) should be clear initially, set after the write. */
+	save = inb_p(address + LM78_ADDR_REG_OFFSET);
+	if (save & 0x80)
+		goto release;
+	val = ~save & 0x7f;
+	outb_p(val, address + LM78_ADDR_REG_OFFSET);
+	if (inb_p(address + LM78_ADDR_REG_OFFSET) != (val | 0x80)) {
+		outb_p(save, address + LM78_ADDR_REG_OFFSET);
+		goto release;
+	}
+
+	/* We found a device, now see if it could be an LM78 */
+	outb_p(LM78_REG_CONFIG, address + LM78_ADDR_REG_OFFSET);
+	val = inb_p(address + LM78_DATA_REG_OFFSET);
+	if (val & 0x80)
+		goto release;
+	outb_p(LM78_REG_I2C_ADDR, address + LM78_ADDR_REG_OFFSET);
+	val = inb_p(address + LM78_DATA_REG_OFFSET);
+	if (val < 0x03 || val > 0x77)	/* Not a valid I2C address */
+		goto release;
+
+	/* The busy flag should be clear again */
+	if (inb_p(address + LM78_ADDR_REG_OFFSET) & 0x80)
+		goto release;
+
+	/* Explicitly prevent the misdetection of Winbond chips */
+	outb_p(0x4f, address + LM78_ADDR_REG_OFFSET);
+	val = inb_p(address + LM78_DATA_REG_OFFSET);
+	if (val == 0xa3 || val == 0x5c)
+		goto release;
+
+	/* Explicitly prevent the misdetection of ITE chips */
+	outb_p(0x58, address + LM78_ADDR_REG_OFFSET);
+	val = inb_p(address + LM78_DATA_REG_OFFSET);
+	if (val == 0x90)
+		goto release;
+
+	/* Determine the chip type */
+	outb_p(LM78_REG_CHIPID, address + LM78_ADDR_REG_OFFSET);
+	val = inb_p(address + LM78_DATA_REG_OFFSET);
+	if (val == 0x00 || val == 0x20	/* LM78 */
+	 || val == 0x40			/* LM78-J */
+	 || (val & 0xfe) == 0xc0)	/* LM79 */
+		found = 1;
+
+	if (found)
+		pr_info("lm78: Found an %s chip at %#x\n",
+			val & 0x80 ? "LM79" : "LM78", (int)address);
+
+ release:
+	release_region(address + 4, 4);
+	release_region(address, 4);
+	return found;
+}
+
+static int __init lm78_isa_device_add(unsigned short address)
+{
+	struct resource res = {
+		.start	= address,
+		.end	= address + LM78_EXTENT - 1,
+		.name	= "lm78",
+		.flags	= IORESOURCE_IO,
+	};
+	int err;
+
+	pdev = platform_device_alloc("lm78", address);
+	if (!pdev) {
+		err = -ENOMEM;
+		printk(KERN_ERR "lm78: Device allocation failed\n");
+		goto exit;
+	}
+
+	err = platform_device_add_resources(pdev, &res, 1);
+	if (err) {
+		printk(KERN_ERR "lm78: Device resource addition failed "
+		       "(%d)\n", err);
+		goto exit_device_put;
+	}
+
+	err = platform_device_add(pdev);
+	if (err) {
+		printk(KERN_ERR "lm78: Device addition failed (%d)\n",
+		       err);
+		goto exit_device_put;
+	}
+
+	return 0;
+
+ exit_device_put:
+	platform_device_put(pdev);
+ exit:
+	pdev = NULL;
+	return err;
+}
+
+static int __init sm_lm78_init(void)
+{
+	int res;
+
+	/* We register the ISA device first, so that we can skip the
+	 * registration of an I2C interface to the same device. */
+	if (lm78_isa_found(isa_address)) {
+		res = platform_driver_register(&lm78_isa_driver);
+		if (res)
+			goto exit;
+
+		/* Sets global pdev as a side effect */
+		res = lm78_isa_device_add(isa_address);
+		if (res)
+			goto exit_unreg_isa_driver;
+	}
+
+	res = i2c_add_driver(&lm78_driver);
+	if (res)
+		goto exit_unreg_isa_device;
+
+	return 0;
+
+ exit_unreg_isa_device:
+	platform_device_unregister(pdev);
+ exit_unreg_isa_driver:
+	platform_driver_unregister(&lm78_isa_driver);
+ exit:
+	return res;
+}
+
+static void __exit sm_lm78_exit(void)
+{
+	if (pdev) {
+		platform_device_unregister(pdev);
+		platform_driver_unregister(&lm78_isa_driver);
+	}
+	i2c_del_driver(&lm78_driver);
+}
+
+
+
+MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>");
+MODULE_DESCRIPTION("LM78/LM79 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sm_lm78_init);
+module_exit(sm_lm78_exit);
diff --git a/drivers/hwmon/lm80.c b/drivers/hwmon/lm80.c
new file mode 100644
index 0000000..bcffc18
--- /dev/null
+++ b/drivers/hwmon/lm80.c
@@ -0,0 +1,619 @@
+/*
+ * lm80.c - From lm_sensors, Linux kernel modules for hardware
+ * monitoring
+ * Copyright (C) 1998, 1999  Frodo Looijaard <frodol@dds.nl>
+ * and Philip Edelbrock <phil@netroedge.com>
+ *
+ * Ported to Linux 2.6 by Tiago Sousa <mirage@kaotik.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d,
+						0x2e, 0x2f, I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_1(lm80);
+
+/* Many LM80 constants specified below */
+
+/* The LM80 registers */
+#define LM80_REG_IN_MAX(nr)		(0x2a + (nr) * 2)
+#define LM80_REG_IN_MIN(nr)		(0x2b + (nr) * 2)
+#define LM80_REG_IN(nr)			(0x20 + (nr))
+
+#define LM80_REG_FAN1			0x28
+#define LM80_REG_FAN2			0x29
+#define LM80_REG_FAN_MIN(nr)		(0x3b + (nr))
+
+#define LM80_REG_TEMP			0x27
+#define LM80_REG_TEMP_HOT_MAX		0x38
+#define LM80_REG_TEMP_HOT_HYST		0x39
+#define LM80_REG_TEMP_OS_MAX		0x3a
+#define LM80_REG_TEMP_OS_HYST		0x3b
+
+#define LM80_REG_CONFIG			0x00
+#define LM80_REG_ALARM1			0x01
+#define LM80_REG_ALARM2			0x02
+#define LM80_REG_MASK1			0x03
+#define LM80_REG_MASK2			0x04
+#define LM80_REG_FANDIV			0x05
+#define LM80_REG_RES			0x06
+
+
+/* Conversions. Rounding and limit checking is only done on the TO_REG
+   variants. Note that you should be a bit careful with which arguments
+   these macros are called: arguments may be evaluated more than once.
+   Fixing this is just not worth it. */
+
+#define IN_TO_REG(val)		(SENSORS_LIMIT(((val)+5)/10,0,255))
+#define IN_FROM_REG(val)	((val)*10)
+
+static inline unsigned char FAN_TO_REG(unsigned rpm, unsigned div)
+{
+	if (rpm == 0)
+		return 255;
+	rpm = SENSORS_LIMIT(rpm, 1, 1000000);
+	return SENSORS_LIMIT((1350000 + rpm*div / 2) / (rpm*div), 1, 254);
+}
+
+#define FAN_FROM_REG(val,div)	((val)==0?-1:\
+				(val)==255?0:1350000/((div)*(val)))
+
+static inline long TEMP_FROM_REG(u16 temp)
+{
+	long res;
+
+	temp >>= 4;
+	if (temp < 0x0800)
+		res = 625 * (long) temp;
+	else
+		res = ((long) temp - 0x01000) * 625;
+
+	return res / 10;
+}
+
+#define TEMP_LIMIT_FROM_REG(val)	(((val)>0x80?(val)-0x100:(val))*1000)
+
+#define TEMP_LIMIT_TO_REG(val)		SENSORS_LIMIT((val)<0?\
+					((val)-500)/1000:((val)+500)/1000,0,255)
+
+#define DIV_FROM_REG(val)		(1 << (val))
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct lm80_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	char valid;		/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+
+	u8 in[7];		/* Register value */
+	u8 in_max[7];		/* Register value */
+	u8 in_min[7];		/* Register value */
+	u8 fan[2];		/* Register value */
+	u8 fan_min[2];		/* Register value */
+	u8 fan_div[2];		/* Register encoding, shifted right */
+	u16 temp;		/* Register values, shifted right */
+	u8 temp_hot_max;	/* Register value */
+	u8 temp_hot_hyst;	/* Register value */
+	u8 temp_os_max;		/* Register value */
+	u8 temp_os_hyst;	/* Register value */
+	u16 alarms;		/* Register encoding, combined */
+};
+
+/*
+ * Functions declaration
+ */
+
+static int lm80_probe(struct i2c_client *client,
+		      const struct i2c_device_id *id);
+static int lm80_detect(struct i2c_client *client, int kind,
+		       struct i2c_board_info *info);
+static void lm80_init_client(struct i2c_client *client);
+static int lm80_remove(struct i2c_client *client);
+static struct lm80_data *lm80_update_device(struct device *dev);
+static int lm80_read_value(struct i2c_client *client, u8 reg);
+static int lm80_write_value(struct i2c_client *client, u8 reg, u8 value);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static const struct i2c_device_id lm80_id[] = {
+	{ "lm80", lm80 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, lm80_id);
+
+static struct i2c_driver lm80_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "lm80",
+	},
+	.probe		= lm80_probe,
+	.remove		= lm80_remove,
+	.id_table	= lm80_id,
+	.detect		= lm80_detect,
+	.address_data	= &addr_data,
+};
+
+/*
+ * Sysfs stuff
+ */
+
+#define show_in(suffix, value) \
+static ssize_t show_in_##suffix(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+	int nr = to_sensor_dev_attr(attr)->index; \
+	struct lm80_data *data = lm80_update_device(dev); \
+	return sprintf(buf, "%d\n", IN_FROM_REG(data->value[nr])); \
+}
+show_in(min, in_min)
+show_in(max, in_max)
+show_in(input, in)
+
+#define set_in(suffix, value, reg) \
+static ssize_t set_in_##suffix(struct device *dev, struct device_attribute *attr, const char *buf, \
+	size_t count) \
+{ \
+	int nr = to_sensor_dev_attr(attr)->index; \
+	struct i2c_client *client = to_i2c_client(dev); \
+	struct lm80_data *data = i2c_get_clientdata(client); \
+	long val = simple_strtol(buf, NULL, 10); \
+ \
+	mutex_lock(&data->update_lock);\
+	data->value[nr] = IN_TO_REG(val); \
+	lm80_write_value(client, reg(nr), data->value[nr]); \
+	mutex_unlock(&data->update_lock);\
+	return count; \
+}
+set_in(min, in_min, LM80_REG_IN_MIN)
+set_in(max, in_max, LM80_REG_IN_MAX)
+
+#define show_fan(suffix, value) \
+static ssize_t show_fan_##suffix(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+	int nr = to_sensor_dev_attr(attr)->index; \
+	struct lm80_data *data = lm80_update_device(dev); \
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->value[nr], \
+		       DIV_FROM_REG(data->fan_div[nr]))); \
+}
+show_fan(min, fan_min)
+show_fan(input, fan)
+
+static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
+	char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct lm80_data *data = lm80_update_device(dev);
+	return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));
+}
+
+static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
+	const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm80_data *data = i2c_get_clientdata(client);
+	long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
+	lm80_write_value(client, LM80_REG_FAN_MIN(nr + 1), data->fan_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+/* Note: we save and restore the fan minimum here, because its value is
+   determined in part by the fan divisor.  This follows the principle of
+   least surprise; the user doesn't expect the fan minimum to change just
+   because the divisor changed. */
+static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
+	const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm80_data *data = i2c_get_clientdata(client);
+	unsigned long min, val = simple_strtoul(buf, NULL, 10);
+	u8 reg;
+
+	/* Save fan_min */
+	mutex_lock(&data->update_lock);
+	min = FAN_FROM_REG(data->fan_min[nr],
+			   DIV_FROM_REG(data->fan_div[nr]));
+
+	switch (val) {
+	case 1: data->fan_div[nr] = 0; break;
+	case 2: data->fan_div[nr] = 1; break;
+	case 4: data->fan_div[nr] = 2; break;
+	case 8: data->fan_div[nr] = 3; break;
+	default:
+		dev_err(&client->dev, "fan_div value %ld not "
+			"supported. Choose one of 1, 2, 4 or 8!\n", val);
+		mutex_unlock(&data->update_lock);
+		return -EINVAL;
+	}
+
+	reg = (lm80_read_value(client, LM80_REG_FANDIV) & ~(3 << (2 * (nr + 1))))
+	    | (data->fan_div[nr] << (2 * (nr + 1)));
+	lm80_write_value(client, LM80_REG_FANDIV, reg);
+
+	/* Restore fan_min */
+	data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
+	lm80_write_value(client, LM80_REG_FAN_MIN(nr + 1), data->fan_min[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t show_temp_input1(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct lm80_data *data = lm80_update_device(dev);
+	return sprintf(buf, "%ld\n", TEMP_FROM_REG(data->temp));
+}
+
+#define show_temp(suffix, value) \
+static ssize_t show_temp_##suffix(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+	struct lm80_data *data = lm80_update_device(dev); \
+	return sprintf(buf, "%d\n", TEMP_LIMIT_FROM_REG(data->value)); \
+}
+show_temp(hot_max, temp_hot_max);
+show_temp(hot_hyst, temp_hot_hyst);
+show_temp(os_max, temp_os_max);
+show_temp(os_hyst, temp_os_hyst);
+
+#define set_temp(suffix, value, reg) \
+static ssize_t set_temp_##suffix(struct device *dev, struct device_attribute *attr, const char *buf, \
+	size_t count) \
+{ \
+	struct i2c_client *client = to_i2c_client(dev); \
+	struct lm80_data *data = i2c_get_clientdata(client); \
+	long val = simple_strtoul(buf, NULL, 10); \
+ \
+	mutex_lock(&data->update_lock); \
+	data->value = TEMP_LIMIT_TO_REG(val); \
+	lm80_write_value(client, reg, data->value); \
+	mutex_unlock(&data->update_lock); \
+	return count; \
+}
+set_temp(hot_max, temp_hot_max, LM80_REG_TEMP_HOT_MAX);
+set_temp(hot_hyst, temp_hot_hyst, LM80_REG_TEMP_HOT_HYST);
+set_temp(os_max, temp_os_max, LM80_REG_TEMP_OS_MAX);
+set_temp(os_hyst, temp_os_hyst, LM80_REG_TEMP_OS_HYST);
+
+static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
+			   char *buf)
+{
+	struct lm80_data *data = lm80_update_device(dev);
+	return sprintf(buf, "%u\n", data->alarms);
+}
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	struct lm80_data *data = lm80_update_device(dev);
+	return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
+}
+
+static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
+		show_in_min, set_in_min, 0);
+static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
+		show_in_min, set_in_min, 1);
+static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
+		show_in_min, set_in_min, 2);
+static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
+		show_in_min, set_in_min, 3);
+static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
+		show_in_min, set_in_min, 4);
+static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
+		show_in_min, set_in_min, 5);
+static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
+		show_in_min, set_in_min, 6);
+static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
+		show_in_max, set_in_max, 0);
+static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
+		show_in_max, set_in_max, 1);
+static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
+		show_in_max, set_in_max, 2);
+static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
+		show_in_max, set_in_max, 3);
+static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
+		show_in_max, set_in_max, 4);
+static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
+		show_in_max, set_in_max, 5);
+static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
+		show_in_max, set_in_max, 6);
+static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in_input, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in_input, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in_input, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in_input, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in_input, NULL, 4);
+static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in_input, NULL, 5);
+static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in_input, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
+		show_fan_min, set_fan_min, 0);
+static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
+		show_fan_min, set_fan_min, 1);
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
+		show_fan_div, set_fan_div, 0);
+static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
+		show_fan_div, set_fan_div, 1);
+static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input1, NULL);
+static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_hot_max,
+    set_temp_hot_max);
+static DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO, show_temp_hot_hyst,
+    set_temp_hot_hyst);
+static DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp_os_max,
+    set_temp_os_max);
+static DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temp_os_hyst,
+    set_temp_os_hyst);
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 10);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 11);
+static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 13);
+
+/*
+ * Real code
+ */
+
+static struct attribute *lm80_attributes[] = {
+	&sensor_dev_attr_in0_min.dev_attr.attr,
+	&sensor_dev_attr_in1_min.dev_attr.attr,
+	&sensor_dev_attr_in2_min.dev_attr.attr,
+	&sensor_dev_attr_in3_min.dev_attr.attr,
+	&sensor_dev_attr_in4_min.dev_attr.attr,
+	&sensor_dev_attr_in5_min.dev_attr.attr,
+	&sensor_dev_attr_in6_min.dev_attr.attr,
+	&sensor_dev_attr_in0_max.dev_attr.attr,
+	&sensor_dev_attr_in1_max.dev_attr.attr,
+	&sensor_dev_attr_in2_max.dev_attr.attr,
+	&sensor_dev_attr_in3_max.dev_attr.attr,
+	&sensor_dev_attr_in4_max.dev_attr.attr,
+	&sensor_dev_attr_in5_max.dev_attr.attr,
+	&sensor_dev_attr_in6_max.dev_attr.attr,
+	&sensor_dev_attr_in0_input.dev_attr.attr,
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in4_input.dev_attr.attr,
+	&sensor_dev_attr_in5_input.dev_attr.attr,
+	&sensor_dev_attr_in6_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_div.dev_attr.attr,
+	&sensor_dev_attr_fan2_div.dev_attr.attr,
+	&dev_attr_temp1_input.attr,
+	&dev_attr_temp1_max.attr,
+	&dev_attr_temp1_max_hyst.attr,
+	&dev_attr_temp1_crit.attr,
+	&dev_attr_temp1_crit_hyst.attr,
+	&dev_attr_alarms.attr,
+	&sensor_dev_attr_in0_alarm.dev_attr.attr,
+	&sensor_dev_attr_in1_alarm.dev_attr.attr,
+	&sensor_dev_attr_in2_alarm.dev_attr.attr,
+	&sensor_dev_attr_in3_alarm.dev_attr.attr,
+	&sensor_dev_attr_in4_alarm.dev_attr.attr,
+	&sensor_dev_attr_in5_alarm.dev_attr.attr,
+	&sensor_dev_attr_in6_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group lm80_group = {
+	.attrs = lm80_attributes,
+};
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int lm80_detect(struct i2c_client *client, int kind,
+		       struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+	int i, cur;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	/* Now, we do the remaining detection. It is lousy. */
+	if (lm80_read_value(client, LM80_REG_ALARM2) & 0xc0)
+		return -ENODEV;
+	for (i = 0x2a; i <= 0x3d; i++) {
+		cur = i2c_smbus_read_byte_data(client, i);
+		if ((i2c_smbus_read_byte_data(client, i + 0x40) != cur)
+		 || (i2c_smbus_read_byte_data(client, i + 0x80) != cur)
+		 || (i2c_smbus_read_byte_data(client, i + 0xc0) != cur))
+		    return -ENODEV;
+	}
+
+	strlcpy(info->type, "lm80", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int lm80_probe(struct i2c_client *client,
+		      const struct i2c_device_id *id)
+{
+	struct lm80_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct lm80_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
+
+	/* Initialize the LM80 chip */
+	lm80_init_client(client);
+
+	/* A few vars need to be filled upon startup */
+	data->fan_min[0] = lm80_read_value(client, LM80_REG_FAN_MIN(1));
+	data->fan_min[1] = lm80_read_value(client, LM80_REG_FAN_MIN(2));
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&client->dev.kobj, &lm80_group)))
+		goto error_free;
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto error_remove;
+	}
+
+	return 0;
+
+error_remove:
+	sysfs_remove_group(&client->dev.kobj, &lm80_group);
+error_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+static int lm80_remove(struct i2c_client *client)
+{
+	struct lm80_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &lm80_group);
+
+	kfree(data);
+	return 0;
+}
+
+static int lm80_read_value(struct i2c_client *client, u8 reg)
+{
+	return i2c_smbus_read_byte_data(client, reg);
+}
+
+static int lm80_write_value(struct i2c_client *client, u8 reg, u8 value)
+{
+	return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+/* Called when we have found a new LM80. */
+static void lm80_init_client(struct i2c_client *client)
+{
+	/* Reset all except Watchdog values and last conversion values
+	   This sets fan-divs to 2, among others. This makes most other
+	   initializations unnecessary */
+	lm80_write_value(client, LM80_REG_CONFIG, 0x80);
+	/* Set 11-bit temperature resolution */
+	lm80_write_value(client, LM80_REG_RES, 0x08);
+
+	/* Start monitoring */
+	lm80_write_value(client, LM80_REG_CONFIG, 0x01);
+}
+
+static struct lm80_data *lm80_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm80_data *data = i2c_get_clientdata(client);
+	int i;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) {
+		dev_dbg(&client->dev, "Starting lm80 update\n");
+		for (i = 0; i <= 6; i++) {
+			data->in[i] =
+			    lm80_read_value(client, LM80_REG_IN(i));
+			data->in_min[i] =
+			    lm80_read_value(client, LM80_REG_IN_MIN(i));
+			data->in_max[i] =
+			    lm80_read_value(client, LM80_REG_IN_MAX(i));
+		}
+		data->fan[0] = lm80_read_value(client, LM80_REG_FAN1);
+		data->fan_min[0] =
+		    lm80_read_value(client, LM80_REG_FAN_MIN(1));
+		data->fan[1] = lm80_read_value(client, LM80_REG_FAN2);
+		data->fan_min[1] =
+		    lm80_read_value(client, LM80_REG_FAN_MIN(2));
+
+		data->temp =
+		    (lm80_read_value(client, LM80_REG_TEMP) << 8) |
+		    (lm80_read_value(client, LM80_REG_RES) & 0xf0);
+		data->temp_os_max =
+		    lm80_read_value(client, LM80_REG_TEMP_OS_MAX);
+		data->temp_os_hyst =
+		    lm80_read_value(client, LM80_REG_TEMP_OS_HYST);
+		data->temp_hot_max =
+		    lm80_read_value(client, LM80_REG_TEMP_HOT_MAX);
+		data->temp_hot_hyst =
+		    lm80_read_value(client, LM80_REG_TEMP_HOT_HYST);
+
+		i = lm80_read_value(client, LM80_REG_FANDIV);
+		data->fan_div[0] = (i >> 2) & 0x03;
+		data->fan_div[1] = (i >> 4) & 0x03;
+		data->alarms = lm80_read_value(client, LM80_REG_ALARM1) +
+		    (lm80_read_value(client, LM80_REG_ALARM2) << 8);
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init sensors_lm80_init(void)
+{
+	return i2c_add_driver(&lm80_driver);
+}
+
+static void __exit sensors_lm80_exit(void)
+{
+	i2c_del_driver(&lm80_driver);
+}
+
+MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl> and "
+	"Philip Edelbrock <phil@netroedge.com>");
+MODULE_DESCRIPTION("LM80 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_lm80_init);
+module_exit(sensors_lm80_exit);
diff --git a/drivers/hwmon/lm83.c b/drivers/hwmon/lm83.c
new file mode 100644
index 0000000..e59e2d1
--- /dev/null
+++ b/drivers/hwmon/lm83.c
@@ -0,0 +1,474 @@
+/*
+ * lm83.c - Part of lm_sensors, Linux kernel modules for hardware
+ *          monitoring
+ * Copyright (C) 2003-2008  Jean Delvare <khali@linux-fr.org>
+ *
+ * Heavily inspired from the lm78, lm75 and adm1021 drivers. The LM83 is
+ * a sensor chip made by National Semiconductor. It reports up to four
+ * temperatures (its own plus up to three external ones) with a 1 deg
+ * resolution and a 3-4 deg accuracy. Complete datasheet can be obtained
+ * from National's website at:
+ *   http://www.national.com/pf/LM/LM83.html
+ * Since the datasheet omits to give the chip stepping code, I give it
+ * here: 0x03 (at register 0xff).
+ *
+ * Also supports the LM82 temp sensor, which is basically a stripped down
+ * model of the LM83.  Datasheet is here:
+ * http://www.national.com/pf/LM/LM82.html
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+
+/*
+ * Addresses to scan
+ * Address is selected using 2 three-level pins, resulting in 9 possible
+ * addresses.
+ */
+
+static const unsigned short normal_i2c[] = {
+	0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e, I2C_CLIENT_END };
+
+/*
+ * Insmod parameters
+ */
+
+I2C_CLIENT_INSMOD_2(lm83, lm82);
+
+/*
+ * The LM83 registers
+ * Manufacturer ID is 0x01 for National Semiconductor.
+ */
+
+#define LM83_REG_R_MAN_ID		0xFE
+#define LM83_REG_R_CHIP_ID		0xFF
+#define LM83_REG_R_CONFIG		0x03
+#define LM83_REG_W_CONFIG		0x09
+#define LM83_REG_R_STATUS1		0x02
+#define LM83_REG_R_STATUS2		0x35
+#define LM83_REG_R_LOCAL_TEMP		0x00
+#define LM83_REG_R_LOCAL_HIGH		0x05
+#define LM83_REG_W_LOCAL_HIGH		0x0B
+#define LM83_REG_R_REMOTE1_TEMP		0x30
+#define LM83_REG_R_REMOTE1_HIGH		0x38
+#define LM83_REG_W_REMOTE1_HIGH		0x50
+#define LM83_REG_R_REMOTE2_TEMP		0x01
+#define LM83_REG_R_REMOTE2_HIGH		0x07
+#define LM83_REG_W_REMOTE2_HIGH		0x0D
+#define LM83_REG_R_REMOTE3_TEMP		0x31
+#define LM83_REG_R_REMOTE3_HIGH		0x3A
+#define LM83_REG_W_REMOTE3_HIGH		0x52
+#define LM83_REG_R_TCRIT		0x42
+#define LM83_REG_W_TCRIT		0x5A
+
+/*
+ * Conversions and various macros
+ * The LM83 uses signed 8-bit values with LSB = 1 degree Celsius.
+ */
+
+#define TEMP_FROM_REG(val)	((val) * 1000)
+#define TEMP_TO_REG(val)	((val) <= -128000 ? -128 : \
+				 (val) >= 127000 ? 127 : \
+				 (val) < 0 ? ((val) - 500) / 1000 : \
+				 ((val) + 500) / 1000)
+
+static const u8 LM83_REG_R_TEMP[] = {
+	LM83_REG_R_LOCAL_TEMP,
+	LM83_REG_R_REMOTE1_TEMP,
+	LM83_REG_R_REMOTE2_TEMP,
+	LM83_REG_R_REMOTE3_TEMP,
+	LM83_REG_R_LOCAL_HIGH,
+	LM83_REG_R_REMOTE1_HIGH,
+	LM83_REG_R_REMOTE2_HIGH,
+	LM83_REG_R_REMOTE3_HIGH,
+	LM83_REG_R_TCRIT,
+};
+
+static const u8 LM83_REG_W_HIGH[] = {
+	LM83_REG_W_LOCAL_HIGH,
+	LM83_REG_W_REMOTE1_HIGH,
+	LM83_REG_W_REMOTE2_HIGH,
+	LM83_REG_W_REMOTE3_HIGH,
+	LM83_REG_W_TCRIT,
+};
+
+/*
+ * Functions declaration
+ */
+
+static int lm83_detect(struct i2c_client *new_client, int kind,
+		       struct i2c_board_info *info);
+static int lm83_probe(struct i2c_client *client,
+		      const struct i2c_device_id *id);
+static int lm83_remove(struct i2c_client *client);
+static struct lm83_data *lm83_update_device(struct device *dev);
+
+/*
+ * Driver data (common to all clients)
+ */
+ 
+static const struct i2c_device_id lm83_id[] = {
+	{ "lm83", lm83 },
+	{ "lm82", lm82 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, lm83_id);
+
+static struct i2c_driver lm83_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "lm83",
+	},
+	.probe		= lm83_probe,
+	.remove		= lm83_remove,
+	.id_table	= lm83_id,
+	.detect		= lm83_detect,
+	.address_data	= &addr_data,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct lm83_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	char valid; /* zero until following fields are valid */
+	unsigned long last_updated; /* in jiffies */
+
+	/* registers values */
+	s8 temp[9];	/* 0..3: input 1-4,
+			   4..7: high limit 1-4,
+			   8   : critical limit */
+	u16 alarms; /* bitvector, combined */
+};
+
+/*
+ * Sysfs stuff
+ */
+
+static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
+			 char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct lm83_data *data = lm83_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
+}
+
+static ssize_t set_temp(struct device *dev, struct device_attribute *devattr,
+			const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm83_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+	int nr = attr->index;
+
+	mutex_lock(&data->update_lock);
+	data->temp[nr] = TEMP_TO_REG(val);
+	i2c_smbus_write_byte_data(client, LM83_REG_W_HIGH[nr - 4],
+				  data->temp[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_alarms(struct device *dev, struct device_attribute *dummy,
+			   char *buf)
+{
+	struct lm83_data *data = lm83_update_device(dev);
+	return sprintf(buf, "%d\n", data->alarms);
+}
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute
+			  *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct lm83_data *data = lm83_update_device(dev);
+	int bitnr = attr->index;
+
+	return sprintf(buf, "%d\n", (data->alarms >> bitnr) & 1);
+}
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp,
+	set_temp, 4);
+static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp,
+	set_temp, 5);
+static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_temp,
+	set_temp, 6);
+static SENSOR_DEVICE_ATTR(temp4_max, S_IWUSR | S_IRUGO, show_temp,
+	set_temp, 7);
+static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp, NULL, 8);
+static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO, show_temp, NULL, 8);
+static SENSOR_DEVICE_ATTR(temp3_crit, S_IWUSR | S_IRUGO, show_temp,
+	set_temp, 8);
+static SENSOR_DEVICE_ATTR(temp4_crit, S_IRUGO, show_temp, NULL, 8);
+
+/* Individual alarm files */
+static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp3_crit_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp3_max_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(temp4_crit_alarm, S_IRUGO, show_alarm, NULL, 9);
+static SENSOR_DEVICE_ATTR(temp4_fault, S_IRUGO, show_alarm, NULL, 10);
+static SENSOR_DEVICE_ATTR(temp4_max_alarm, S_IRUGO, show_alarm, NULL, 12);
+static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 13);
+static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 15);
+/* Raw alarm file for compatibility */
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+static struct attribute *lm83_attributes[] = {
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp3_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp3_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_crit.dev_attr.attr,
+	&sensor_dev_attr_temp3_crit.dev_attr.attr,
+
+	&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp3_crit_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp3_fault.dev_attr.attr,
+	&sensor_dev_attr_temp3_max_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
+	&dev_attr_alarms.attr,
+	NULL
+};
+
+static const struct attribute_group lm83_group = {
+	.attrs = lm83_attributes,
+};
+
+static struct attribute *lm83_attributes_opt[] = {
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp4_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp4_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_crit.dev_attr.attr,
+	&sensor_dev_attr_temp4_crit.dev_attr.attr,
+
+	&sensor_dev_attr_temp2_crit_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp4_crit_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp4_fault.dev_attr.attr,
+	&sensor_dev_attr_temp4_max_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_fault.dev_attr.attr,
+	&sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group lm83_group_opt = {
+	.attrs = lm83_attributes_opt,
+};
+
+/*
+ * Real code
+ */
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int lm83_detect(struct i2c_client *new_client, int kind,
+		       struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = new_client->adapter;
+	const char *name = "";
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	/* Now we do the detection and identification. A negative kind
+	 * means that the driver was loaded with no force parameter
+	 * (default), so we must both detect and identify the chip
+	 * (actually there is only one possible kind of chip for now, LM83).
+	 * A zero kind means that the driver was loaded with the force
+	 * parameter, the detection step shall be skipped. A positive kind
+	 * means that the driver was loaded with the force parameter and a
+	 * given kind of chip is requested, so both the detection and the
+	 * identification steps are skipped. */
+
+	/* Default to an LM83 if forced */
+	if (kind == 0)
+		kind = lm83;
+
+	if (kind < 0) { /* detection */
+		if (((i2c_smbus_read_byte_data(new_client, LM83_REG_R_STATUS1)
+		    & 0xA8) != 0x00) ||
+		    ((i2c_smbus_read_byte_data(new_client, LM83_REG_R_STATUS2)
+		    & 0x48) != 0x00) ||
+		    ((i2c_smbus_read_byte_data(new_client, LM83_REG_R_CONFIG)
+		    & 0x41) != 0x00)) {
+			dev_dbg(&adapter->dev,
+				"LM83 detection failed at 0x%02x.\n",
+				new_client->addr);
+			return -ENODEV;
+		}
+	}
+
+	if (kind <= 0) { /* identification */
+		u8 man_id, chip_id;
+
+		man_id = i2c_smbus_read_byte_data(new_client,
+		    LM83_REG_R_MAN_ID);
+		chip_id = i2c_smbus_read_byte_data(new_client,
+		    LM83_REG_R_CHIP_ID);
+
+		if (man_id == 0x01) { /* National Semiconductor */
+			if (chip_id == 0x03) {
+				kind = lm83;
+			} else
+			if (chip_id == 0x01) {
+				kind = lm82;
+			}
+		}
+
+		if (kind <= 0) { /* identification failed */
+			dev_info(&adapter->dev,
+			    "Unsupported chip (man_id=0x%02X, "
+			    "chip_id=0x%02X).\n", man_id, chip_id);
+			return -ENODEV;
+		}
+	}
+
+	if (kind == lm83) {
+		name = "lm83";
+	} else
+	if (kind == lm82) {
+		name = "lm82";
+	}
+
+	strlcpy(info->type, name, I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int lm83_probe(struct i2c_client *new_client,
+		      const struct i2c_device_id *id)
+{
+	struct lm83_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct lm83_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(new_client, data);
+	data->valid = 0;
+	mutex_init(&data->update_lock);
+
+	/*
+	 * Register sysfs hooks
+	 * The LM82 can only monitor one external diode which is
+	 * at the same register as the LM83 temp3 entry - so we
+	 * declare 1 and 3 common, and then 2 and 4 only for the LM83.
+	 */
+
+	if ((err = sysfs_create_group(&new_client->dev.kobj, &lm83_group)))
+		goto exit_free;
+
+	if (id->driver_data == lm83) {
+		if ((err = sysfs_create_group(&new_client->dev.kobj,
+					      &lm83_group_opt)))
+			goto exit_remove_files;
+	}
+
+	data->hwmon_dev = hwmon_device_register(&new_client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove_files;
+	}
+
+	return 0;
+
+exit_remove_files:
+	sysfs_remove_group(&new_client->dev.kobj, &lm83_group);
+	sysfs_remove_group(&new_client->dev.kobj, &lm83_group_opt);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+static int lm83_remove(struct i2c_client *client)
+{
+	struct lm83_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &lm83_group);
+	sysfs_remove_group(&client->dev.kobj, &lm83_group_opt);
+
+	kfree(data);
+	return 0;
+}
+
+static struct lm83_data *lm83_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm83_data *data = i2c_get_clientdata(client);
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
+		int nr;
+
+		dev_dbg(&client->dev, "Updating lm83 data.\n");
+		for (nr = 0; nr < 9; nr++) {
+			data->temp[nr] =
+			    i2c_smbus_read_byte_data(client,
+			    LM83_REG_R_TEMP[nr]);
+		}
+		data->alarms =
+		    i2c_smbus_read_byte_data(client, LM83_REG_R_STATUS1)
+		    + (i2c_smbus_read_byte_data(client, LM83_REG_R_STATUS2)
+		    << 8);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init sensors_lm83_init(void)
+{
+	return i2c_add_driver(&lm83_driver);
+}
+
+static void __exit sensors_lm83_exit(void)
+{
+	i2c_del_driver(&lm83_driver);
+}
+
+MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
+MODULE_DESCRIPTION("LM83 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_lm83_init);
+module_exit(sensors_lm83_exit);
diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c
new file mode 100644
index 0000000..cfc1ee9
--- /dev/null
+++ b/drivers/hwmon/lm85.c
@@ -0,0 +1,1566 @@
+/*
+    lm85.c - Part of lm_sensors, Linux kernel modules for hardware
+             monitoring
+    Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl>
+    Copyright (c) 2002, 2003  Philip Pokorny <ppokorny@penguincomputing.com>
+    Copyright (c) 2003        Margit Schubert-While <margitsw@t-online.de>
+    Copyright (c) 2004        Justin Thiessen <jthiessen@penguincomputing.com>
+    Copyright (C) 2007, 2008  Jean Delvare <khali@linux-fr.org>
+
+    Chip details at	      <http://www.national.com/ds/LM/LM85.pdf>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-vid.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_7(lm85b, lm85c, adm1027, adt7463, adt7468, emc6d100,
+		    emc6d102);
+
+/* The LM85 registers */
+
+#define	LM85_REG_IN(nr)			(0x20 + (nr))
+#define	LM85_REG_IN_MIN(nr)		(0x44 + (nr) * 2)
+#define	LM85_REG_IN_MAX(nr)		(0x45 + (nr) * 2)
+
+#define	LM85_REG_TEMP(nr)		(0x25 + (nr))
+#define	LM85_REG_TEMP_MIN(nr)		(0x4e + (nr) * 2)
+#define	LM85_REG_TEMP_MAX(nr)		(0x4f + (nr) * 2)
+
+/* Fan speeds are LSB, MSB (2 bytes) */
+#define	LM85_REG_FAN(nr)		(0x28 + (nr) * 2)
+#define	LM85_REG_FAN_MIN(nr)		(0x54 + (nr) * 2)
+
+#define	LM85_REG_PWM(nr)		(0x30 + (nr))
+
+#define	LM85_REG_COMPANY		0x3e
+#define	LM85_REG_VERSTEP		0x3f
+
+#define	ADT7468_REG_CFG5		0x7c
+#define		ADT7468_OFF64		0x01
+#define	IS_ADT7468_OFF64(data)		\
+	((data)->type == adt7468 && !((data)->cfg5 & ADT7468_OFF64))
+
+/* These are the recognized values for the above regs */
+#define	LM85_COMPANY_NATIONAL		0x01
+#define	LM85_COMPANY_ANALOG_DEV		0x41
+#define	LM85_COMPANY_SMSC		0x5c
+#define	LM85_VERSTEP_VMASK              0xf0
+#define	LM85_VERSTEP_GENERIC		0x60
+#define	LM85_VERSTEP_LM85C		0x60
+#define	LM85_VERSTEP_LM85B		0x62
+#define	LM85_VERSTEP_ADM1027		0x60
+#define	LM85_VERSTEP_ADT7463		0x62
+#define	LM85_VERSTEP_ADT7463C		0x6A
+#define	LM85_VERSTEP_ADT7468_1		0x71
+#define	LM85_VERSTEP_ADT7468_2		0x72
+#define	LM85_VERSTEP_EMC6D100_A0        0x60
+#define	LM85_VERSTEP_EMC6D100_A1        0x61
+#define	LM85_VERSTEP_EMC6D102		0x65
+
+#define	LM85_REG_CONFIG			0x40
+
+#define	LM85_REG_ALARM1			0x41
+#define	LM85_REG_ALARM2			0x42
+
+#define	LM85_REG_VID			0x43
+
+/* Automated FAN control */
+#define	LM85_REG_AFAN_CONFIG(nr)	(0x5c + (nr))
+#define	LM85_REG_AFAN_RANGE(nr)		(0x5f + (nr))
+#define	LM85_REG_AFAN_SPIKE1		0x62
+#define	LM85_REG_AFAN_MINPWM(nr)	(0x64 + (nr))
+#define	LM85_REG_AFAN_LIMIT(nr)		(0x67 + (nr))
+#define	LM85_REG_AFAN_CRITICAL(nr)	(0x6a + (nr))
+#define	LM85_REG_AFAN_HYST1		0x6d
+#define	LM85_REG_AFAN_HYST2		0x6e
+
+#define	ADM1027_REG_EXTEND_ADC1		0x76
+#define	ADM1027_REG_EXTEND_ADC2		0x77
+
+#define EMC6D100_REG_ALARM3             0x7d
+/* IN5, IN6 and IN7 */
+#define	EMC6D100_REG_IN(nr)             (0x70 + ((nr) - 5))
+#define	EMC6D100_REG_IN_MIN(nr)         (0x73 + ((nr) - 5) * 2)
+#define	EMC6D100_REG_IN_MAX(nr)         (0x74 + ((nr) - 5) * 2)
+#define	EMC6D102_REG_EXTEND_ADC1	0x85
+#define	EMC6D102_REG_EXTEND_ADC2	0x86
+#define	EMC6D102_REG_EXTEND_ADC3	0x87
+#define	EMC6D102_REG_EXTEND_ADC4	0x88
+
+
+/* Conversions. Rounding and limit checking is only done on the TO_REG
+   variants. Note that you should be a bit careful with which arguments
+   these macros are called: arguments may be evaluated more than once.
+ */
+
+/* IN are scaled acording to built-in resistors */
+static const int lm85_scaling[] = {  /* .001 Volts */
+	2500, 2250, 3300, 5000, 12000,
+	3300, 1500, 1800 /*EMC6D100*/
+};
+#define SCALE(val, from, to)	(((val) * (to) + ((from) / 2)) / (from))
+
+#define INS_TO_REG(n, val)	\
+		SENSORS_LIMIT(SCALE(val, lm85_scaling[n], 192), 0, 255)
+
+#define INSEXT_FROM_REG(n, val, ext)	\
+		SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n])
+
+#define INS_FROM_REG(n, val)	SCALE((val), 192, lm85_scaling[n])
+
+/* FAN speed is measured using 90kHz clock */
+static inline u16 FAN_TO_REG(unsigned long val)
+{
+	if (!val)
+		return 0xffff;
+	return SENSORS_LIMIT(5400000 / val, 1, 0xfffe);
+}
+#define FAN_FROM_REG(val)	((val) == 0 ? -1 : (val) == 0xffff ? 0 : \
+				 5400000 / (val))
+
+/* Temperature is reported in .001 degC increments */
+#define TEMP_TO_REG(val)	\
+		SENSORS_LIMIT(SCALE(val, 1000, 1), -127, 127)
+#define TEMPEXT_FROM_REG(val, ext)	\
+		SCALE(((val) << 4) + (ext), 16, 1000)
+#define TEMP_FROM_REG(val)	((val) * 1000)
+
+#define PWM_TO_REG(val)			SENSORS_LIMIT(val, 0, 255)
+#define PWM_FROM_REG(val)		(val)
+
+
+/* ZONEs have the following parameters:
+ *    Limit (low) temp,           1. degC
+ *    Hysteresis (below limit),   1. degC (0-15)
+ *    Range of speed control,     .1 degC (2-80)
+ *    Critical (high) temp,       1. degC
+ *
+ * FAN PWMs have the following parameters:
+ *    Reference Zone,                 1, 2, 3, etc.
+ *    Spinup time,                    .05 sec
+ *    PWM value at limit/low temp,    1 count
+ *    PWM Frequency,                  1. Hz
+ *    PWM is Min or OFF below limit,  flag
+ *    Invert PWM output,              flag
+ *
+ * Some chips filter the temp, others the fan.
+ *    Filter constant (or disabled)   .1 seconds
+ */
+
+/* These are the zone temperature range encodings in .001 degree C */
+static const int lm85_range_map[] = {
+	2000, 2500, 3300, 4000, 5000, 6600, 8000, 10000,
+	13300, 16000, 20000, 26600, 32000, 40000, 53300, 80000
+};
+
+static int RANGE_TO_REG(int range)
+{
+	int i;
+
+	/* Find the closest match */
+	for (i = 0; i < 15; ++i) {
+		if (range <= (lm85_range_map[i] + lm85_range_map[i + 1]) / 2)
+			break;
+	}
+
+	return i;
+}
+#define RANGE_FROM_REG(val)	lm85_range_map[(val) & 0x0f]
+
+/* These are the PWM frequency encodings */
+static const int lm85_freq_map[8] = { /* 1 Hz */
+	10, 15, 23, 30, 38, 47, 61, 94
+};
+static const int adm1027_freq_map[8] = { /* 1 Hz */
+	11, 15, 22, 29, 35, 44, 59, 88
+};
+
+static int FREQ_TO_REG(const int *map, int freq)
+{
+	int i;
+
+	/* Find the closest match */
+	for (i = 0; i < 7; ++i)
+		if (freq <= (map[i] + map[i + 1]) / 2)
+			break;
+	return i;
+}
+
+static int FREQ_FROM_REG(const int *map, u8 reg)
+{
+	return map[reg & 0x07];
+}
+
+/* Since we can't use strings, I'm abusing these numbers
+ *   to stand in for the following meanings:
+ *      1 -- PWM responds to Zone 1
+ *      2 -- PWM responds to Zone 2
+ *      3 -- PWM responds to Zone 3
+ *     23 -- PWM responds to the higher temp of Zone 2 or 3
+ *    123 -- PWM responds to highest of Zone 1, 2, or 3
+ *      0 -- PWM is always at 0% (ie, off)
+ *     -1 -- PWM is always at 100%
+ *     -2 -- PWM responds to manual control
+ */
+
+static const int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 };
+#define ZONE_FROM_REG(val)	lm85_zone_map[(val) >> 5]
+
+static int ZONE_TO_REG(int zone)
+{
+	int i;
+
+	for (i = 0; i <= 7; ++i)
+		if (zone == lm85_zone_map[i])
+			break;
+	if (i > 7)   /* Not found. */
+		i = 3;  /* Always 100% */
+	return i << 5;
+}
+
+#define HYST_TO_REG(val)	SENSORS_LIMIT(((val) + 500) / 1000, 0, 15)
+#define HYST_FROM_REG(val)	((val) * 1000)
+
+/* Chip sampling rates
+ *
+ * Some sensors are not updated more frequently than once per second
+ *    so it doesn't make sense to read them more often than that.
+ *    We cache the results and return the saved data if the driver
+ *    is called again before a second has elapsed.
+ *
+ * Also, there is significant configuration data for this chip
+ *    given the automatic PWM fan control that is possible.  There
+ *    are about 47 bytes of config data to only 22 bytes of actual
+ *    readings.  So, we keep the config data up to date in the cache
+ *    when it is written and only sample it once every 1 *minute*
+ */
+#define LM85_DATA_INTERVAL  (HZ + HZ / 2)
+#define LM85_CONFIG_INTERVAL  (1 * 60 * HZ)
+
+/* LM85 can automatically adjust fan speeds based on temperature
+ * This structure encapsulates an entire Zone config.  There are
+ * three zones (one for each temperature input) on the lm85
+ */
+struct lm85_zone {
+	s8 limit;	/* Low temp limit */
+	u8 hyst;	/* Low limit hysteresis. (0-15) */
+	u8 range;	/* Temp range, encoded */
+	s8 critical;	/* "All fans ON" temp limit */
+	u8 off_desired; /* Actual "off" temperature specified.  Preserved
+			 * to prevent "drift" as other autofan control
+			 * values change.
+			 */
+	u8 max_desired; /* Actual "max" temperature specified.  Preserved
+			 * to prevent "drift" as other autofan control
+			 * values change.
+			 */
+};
+
+struct lm85_autofan {
+	u8 config;	/* Register value */
+	u8 min_pwm;	/* Minimum PWM value, encoded */
+	u8 min_off;	/* Min PWM or OFF below "limit", flag */
+};
+
+/* For each registered chip, we need to keep some data in memory.
+   The structure is dynamically allocated. */
+struct lm85_data {
+	struct device *hwmon_dev;
+	const int *freq_map;
+	enum chips type;
+
+	struct mutex update_lock;
+	int valid;		/* !=0 if following fields are valid */
+	unsigned long last_reading;	/* In jiffies */
+	unsigned long last_config;	/* In jiffies */
+
+	u8 in[8];		/* Register value */
+	u8 in_max[8];		/* Register value */
+	u8 in_min[8];		/* Register value */
+	s8 temp[3];		/* Register value */
+	s8 temp_min[3];		/* Register value */
+	s8 temp_max[3];		/* Register value */
+	u16 fan[4];		/* Register value */
+	u16 fan_min[4];		/* Register value */
+	u8 pwm[3];		/* Register value */
+	u8 pwm_freq[3];		/* Register encoding */
+	u8 temp_ext[3];		/* Decoded values */
+	u8 in_ext[8];		/* Decoded values */
+	u8 vid;			/* Register value */
+	u8 vrm;			/* VRM version */
+	u32 alarms;		/* Register encoding, combined */
+	u8 cfg5;		/* Config Register 5 on ADT7468 */
+	struct lm85_autofan autofan[3];
+	struct lm85_zone zone[3];
+};
+
+static int lm85_detect(struct i2c_client *client, int kind,
+		       struct i2c_board_info *info);
+static int lm85_probe(struct i2c_client *client,
+		      const struct i2c_device_id *id);
+static int lm85_remove(struct i2c_client *client);
+
+static int lm85_read_value(struct i2c_client *client, u8 reg);
+static void lm85_write_value(struct i2c_client *client, u8 reg, int value);
+static struct lm85_data *lm85_update_device(struct device *dev);
+
+
+static const struct i2c_device_id lm85_id[] = {
+	{ "adm1027", adm1027 },
+	{ "adt7463", adt7463 },
+	{ "lm85", any_chip },
+	{ "lm85b", lm85b },
+	{ "lm85c", lm85c },
+	{ "emc6d100", emc6d100 },
+	{ "emc6d101", emc6d100 },
+	{ "emc6d102", emc6d102 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, lm85_id);
+
+static struct i2c_driver lm85_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name   = "lm85",
+	},
+	.probe		= lm85_probe,
+	.remove		= lm85_remove,
+	.id_table	= lm85_id,
+	.detect		= lm85_detect,
+	.address_data	= &addr_data,
+};
+
+
+/* 4 Fans */
+static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct lm85_data *data = lm85_update_device(dev);
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr]));
+}
+
+static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct lm85_data *data = lm85_update_device(dev);
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr]));
+}
+
+static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm85_data *data = i2c_get_clientdata(client);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->fan_min[nr] = FAN_TO_REG(val);
+	lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define show_fan_offset(offset)						\
+static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO,			\
+		show_fan, NULL, offset - 1);				\
+static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,		\
+		show_fan_min, set_fan_min, offset - 1)
+
+show_fan_offset(1);
+show_fan_offset(2);
+show_fan_offset(3);
+show_fan_offset(4);
+
+/* vid, vrm, alarms */
+
+static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct lm85_data *data = lm85_update_device(dev);
+	int vid;
+
+	if (data->type == adt7463 && (data->vid & 0x80)) {
+		/* 6-pin VID (VRM 10) */
+		vid = vid_from_reg(data->vid & 0x3f, data->vrm);
+	} else {
+		/* 5-pin VID (VRM 9) */
+		vid = vid_from_reg(data->vid & 0x1f, data->vrm);
+	}
+
+	return sprintf(buf, "%d\n", vid);
+}
+
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
+
+static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct lm85_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%ld\n", (long) data->vrm);
+}
+
+static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct lm85_data *data = dev_get_drvdata(dev);
+	data->vrm = simple_strtoul(buf, NULL, 10);
+	return count;
+}
+
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
+
+static ssize_t show_alarms_reg(struct device *dev, struct device_attribute
+		*attr, char *buf)
+{
+	struct lm85_data *data = lm85_update_device(dev);
+	return sprintf(buf, "%u\n", data->alarms);
+}
+
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct lm85_data *data = lm85_update_device(dev);
+	return sprintf(buf, "%u\n", (data->alarms >> nr) & 1);
+}
+
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 18);
+static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 16);
+static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 17);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14);
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 10);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 11);
+static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 12);
+static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 13);
+
+/* pwm */
+
+static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct lm85_data *data = lm85_update_device(dev);
+	return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr]));
+}
+
+static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm85_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->pwm[nr] = PWM_TO_REG(val);
+	lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
+		*attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct lm85_data *data = lm85_update_device(dev);
+	int pwm_zone, enable;
+
+	pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
+	switch (pwm_zone) {
+	case -1:	/* PWM is always at 100% */
+		enable = 0;
+		break;
+	case 0:		/* PWM is always at 0% */
+	case -2:	/* PWM responds to manual control */
+		enable = 1;
+		break;
+	default:	/* PWM in automatic mode */
+		enable = 2;
+	}
+	return sprintf(buf, "%d\n", enable);
+}
+
+static ssize_t set_pwm_enable(struct device *dev, struct device_attribute
+		*attr, const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm85_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+	u8 config;
+
+	switch (val) {
+	case 0:
+		config = 3;
+		break;
+	case 1:
+		config = 7;
+		break;
+	case 2:
+		/* Here we have to choose arbitrarily one of the 5 possible
+		   configurations; I go for the safest */
+		config = 6;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	mutex_lock(&data->update_lock);
+	data->autofan[nr].config = lm85_read_value(client,
+		LM85_REG_AFAN_CONFIG(nr));
+	data->autofan[nr].config = (data->autofan[nr].config & ~0xe0)
+		| (config << 5);
+	lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
+		data->autofan[nr].config);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_pwm_freq(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct lm85_data *data = lm85_update_device(dev);
+	return sprintf(buf, "%d\n", FREQ_FROM_REG(data->freq_map,
+						  data->pwm_freq[nr]));
+}
+
+static ssize_t set_pwm_freq(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm85_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->pwm_freq[nr] = FREQ_TO_REG(data->freq_map, val);
+	lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
+		(data->zone[nr].range << 4)
+		| data->pwm_freq[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define show_pwm_reg(offset)						\
+static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR,		\
+		show_pwm, set_pwm, offset - 1);				\
+static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR,	\
+		show_pwm_enable, set_pwm_enable, offset - 1);		\
+static SENSOR_DEVICE_ATTR(pwm##offset##_freq, S_IRUGO | S_IWUSR,	\
+		show_pwm_freq, set_pwm_freq, offset - 1)
+
+show_pwm_reg(1);
+show_pwm_reg(2);
+show_pwm_reg(3);
+
+/* Voltages */
+
+static ssize_t show_in(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct lm85_data *data = lm85_update_device(dev);
+	return sprintf(buf, "%d\n", INSEXT_FROM_REG(nr, data->in[nr],
+						    data->in_ext[nr]));
+}
+
+static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct lm85_data *data = lm85_update_device(dev);
+	return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr]));
+}
+
+static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm85_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_min[nr] = INS_TO_REG(nr, val);
+	lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct lm85_data *data = lm85_update_device(dev);
+	return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr]));
+}
+
+static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm85_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_max[nr] = INS_TO_REG(nr, val);
+	lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define show_in_reg(offset)						\
+static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO,			\
+		show_in, NULL, offset);					\
+static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,		\
+		show_in_min, set_in_min, offset);			\
+static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,		\
+		show_in_max, set_in_max, offset)
+
+show_in_reg(0);
+show_in_reg(1);
+show_in_reg(2);
+show_in_reg(3);
+show_in_reg(4);
+show_in_reg(5);
+show_in_reg(6);
+show_in_reg(7);
+
+/* Temps */
+
+static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct lm85_data *data = lm85_update_device(dev);
+	return sprintf(buf, "%d\n", TEMPEXT_FROM_REG(data->temp[nr],
+						     data->temp_ext[nr]));
+}
+
+static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct lm85_data *data = lm85_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr]));
+}
+
+static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm85_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	if (IS_ADT7468_OFF64(data))
+		val += 64;
+
+	mutex_lock(&data->update_lock);
+	data->temp_min[nr] = TEMP_TO_REG(val);
+	lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct lm85_data *data = lm85_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr]));
+}
+
+static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm85_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	if (IS_ADT7468_OFF64(data))
+		val += 64;
+
+	mutex_lock(&data->update_lock);
+	data->temp_max[nr] = TEMP_TO_REG(val);
+	lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define show_temp_reg(offset)						\
+static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO,		\
+		show_temp, NULL, offset - 1);				\
+static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR,	\
+		show_temp_min, set_temp_min, offset - 1);		\
+static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR,	\
+		show_temp_max, set_temp_max, offset - 1);
+
+show_temp_reg(1);
+show_temp_reg(2);
+show_temp_reg(3);
+
+
+/* Automatic PWM control */
+
+static ssize_t show_pwm_auto_channels(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct lm85_data *data = lm85_update_device(dev);
+	return sprintf(buf, "%d\n", ZONE_FROM_REG(data->autofan[nr].config));
+}
+
+static ssize_t set_pwm_auto_channels(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm85_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
+		| ZONE_TO_REG(val);
+	lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
+		data->autofan[nr].config);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_pwm_auto_pwm_min(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct lm85_data *data = lm85_update_device(dev);
+	return sprintf(buf, "%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm));
+}
+
+static ssize_t set_pwm_auto_pwm_min(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm85_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->autofan[nr].min_pwm = PWM_TO_REG(val);
+	lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
+		data->autofan[nr].min_pwm);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_pwm_auto_pwm_minctl(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct lm85_data *data = lm85_update_device(dev);
+	return sprintf(buf, "%d\n", data->autofan[nr].min_off);
+}
+
+static ssize_t set_pwm_auto_pwm_minctl(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm85_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+	u8 tmp;
+
+	mutex_lock(&data->update_lock);
+	data->autofan[nr].min_off = val;
+	tmp = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
+	tmp &= ~(0x20 << nr);
+	if (data->autofan[nr].min_off)
+		tmp |= 0x20 << nr;
+	lm85_write_value(client, LM85_REG_AFAN_SPIKE1, tmp);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define pwm_auto(offset)						\
+static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels,			\
+		S_IRUGO | S_IWUSR, show_pwm_auto_channels,		\
+		set_pwm_auto_channels, offset - 1);			\
+static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min,			\
+		S_IRUGO | S_IWUSR, show_pwm_auto_pwm_min,		\
+		set_pwm_auto_pwm_min, offset - 1);			\
+static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl,		\
+		S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl,		\
+		set_pwm_auto_pwm_minctl, offset - 1)
+
+pwm_auto(1);
+pwm_auto(2);
+pwm_auto(3);
+
+/* Temperature settings for automatic PWM control */
+
+static ssize_t show_temp_auto_temp_off(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct lm85_data *data = lm85_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) -
+		HYST_FROM_REG(data->zone[nr].hyst));
+}
+
+static ssize_t set_temp_auto_temp_off(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm85_data *data = i2c_get_clientdata(client);
+	int min;
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	min = TEMP_FROM_REG(data->zone[nr].limit);
+	data->zone[nr].off_desired = TEMP_TO_REG(val);
+	data->zone[nr].hyst = HYST_TO_REG(min - val);
+	if (nr == 0 || nr == 1) {
+		lm85_write_value(client, LM85_REG_AFAN_HYST1,
+			(data->zone[0].hyst << 4)
+			| data->zone[1].hyst);
+	} else {
+		lm85_write_value(client, LM85_REG_AFAN_HYST2,
+			(data->zone[2].hyst << 4));
+	}
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_temp_auto_temp_min(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct lm85_data *data = lm85_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit));
+}
+
+static ssize_t set_temp_auto_temp_min(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm85_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->zone[nr].limit = TEMP_TO_REG(val);
+	lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
+		data->zone[nr].limit);
+
+/* Update temp_auto_max and temp_auto_range */
+	data->zone[nr].range = RANGE_TO_REG(
+		TEMP_FROM_REG(data->zone[nr].max_desired) -
+		TEMP_FROM_REG(data->zone[nr].limit));
+	lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
+		((data->zone[nr].range & 0x0f) << 4)
+		| (data->pwm_freq[nr] & 0x07));
+
+/* Update temp_auto_hyst and temp_auto_off */
+	data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG(
+		data->zone[nr].limit) - TEMP_FROM_REG(
+		data->zone[nr].off_desired));
+	if (nr == 0 || nr == 1) {
+		lm85_write_value(client, LM85_REG_AFAN_HYST1,
+			(data->zone[0].hyst << 4)
+			| data->zone[1].hyst);
+	} else {
+		lm85_write_value(client, LM85_REG_AFAN_HYST2,
+			(data->zone[2].hyst << 4));
+	}
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_temp_auto_temp_max(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct lm85_data *data = lm85_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) +
+		RANGE_FROM_REG(data->zone[nr].range));
+}
+
+static ssize_t set_temp_auto_temp_max(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm85_data *data = i2c_get_clientdata(client);
+	int min;
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	min = TEMP_FROM_REG(data->zone[nr].limit);
+	data->zone[nr].max_desired = TEMP_TO_REG(val);
+	data->zone[nr].range = RANGE_TO_REG(
+		val - min);
+	lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
+		((data->zone[nr].range & 0x0f) << 4)
+		| (data->pwm_freq[nr] & 0x07));
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_temp_auto_temp_crit(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct lm85_data *data = lm85_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].critical));
+}
+
+static ssize_t set_temp_auto_temp_crit(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm85_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->zone[nr].critical = TEMP_TO_REG(val);
+	lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
+		data->zone[nr].critical);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define temp_auto(offset)						\
+static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_off,			\
+		S_IRUGO | S_IWUSR, show_temp_auto_temp_off,		\
+		set_temp_auto_temp_off, offset - 1);			\
+static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_min,			\
+		S_IRUGO | S_IWUSR, show_temp_auto_temp_min,		\
+		set_temp_auto_temp_min, offset - 1);			\
+static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_max,			\
+		S_IRUGO | S_IWUSR, show_temp_auto_temp_max,		\
+		set_temp_auto_temp_max, offset - 1);			\
+static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_crit,		\
+		S_IRUGO | S_IWUSR, show_temp_auto_temp_crit,		\
+		set_temp_auto_temp_crit, offset - 1);
+
+temp_auto(1);
+temp_auto(2);
+temp_auto(3);
+
+static struct attribute *lm85_attributes[] = {
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan3_input.dev_attr.attr,
+	&sensor_dev_attr_fan4_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan3_min.dev_attr.attr,
+	&sensor_dev_attr_fan4_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan3_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan4_alarm.dev_attr.attr,
+
+	&sensor_dev_attr_pwm1.dev_attr.attr,
+	&sensor_dev_attr_pwm2.dev_attr.attr,
+	&sensor_dev_attr_pwm3.dev_attr.attr,
+	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm2_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm3_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm1_freq.dev_attr.attr,
+	&sensor_dev_attr_pwm2_freq.dev_attr.attr,
+	&sensor_dev_attr_pwm3_freq.dev_attr.attr,
+
+	&sensor_dev_attr_in0_input.dev_attr.attr,
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in0_min.dev_attr.attr,
+	&sensor_dev_attr_in1_min.dev_attr.attr,
+	&sensor_dev_attr_in2_min.dev_attr.attr,
+	&sensor_dev_attr_in3_min.dev_attr.attr,
+	&sensor_dev_attr_in0_max.dev_attr.attr,
+	&sensor_dev_attr_in1_max.dev_attr.attr,
+	&sensor_dev_attr_in2_max.dev_attr.attr,
+	&sensor_dev_attr_in3_max.dev_attr.attr,
+	&sensor_dev_attr_in0_alarm.dev_attr.attr,
+	&sensor_dev_attr_in1_alarm.dev_attr.attr,
+	&sensor_dev_attr_in2_alarm.dev_attr.attr,
+	&sensor_dev_attr_in3_alarm.dev_attr.attr,
+
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp3_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_temp2_min.dev_attr.attr,
+	&sensor_dev_attr_temp3_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp3_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp3_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_fault.dev_attr.attr,
+	&sensor_dev_attr_temp3_fault.dev_attr.attr,
+
+	&sensor_dev_attr_pwm1_auto_channels.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_channels.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_channels.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr,
+
+	&sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr,
+
+	&dev_attr_vrm.attr,
+	&dev_attr_cpu0_vid.attr,
+	&dev_attr_alarms.attr,
+	NULL
+};
+
+static const struct attribute_group lm85_group = {
+	.attrs = lm85_attributes,
+};
+
+static struct attribute *lm85_attributes_in4[] = {
+	&sensor_dev_attr_in4_input.dev_attr.attr,
+	&sensor_dev_attr_in4_min.dev_attr.attr,
+	&sensor_dev_attr_in4_max.dev_attr.attr,
+	&sensor_dev_attr_in4_alarm.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group lm85_group_in4 = {
+	.attrs = lm85_attributes_in4,
+};
+
+static struct attribute *lm85_attributes_in567[] = {
+	&sensor_dev_attr_in5_input.dev_attr.attr,
+	&sensor_dev_attr_in6_input.dev_attr.attr,
+	&sensor_dev_attr_in7_input.dev_attr.attr,
+	&sensor_dev_attr_in5_min.dev_attr.attr,
+	&sensor_dev_attr_in6_min.dev_attr.attr,
+	&sensor_dev_attr_in7_min.dev_attr.attr,
+	&sensor_dev_attr_in5_max.dev_attr.attr,
+	&sensor_dev_attr_in6_max.dev_attr.attr,
+	&sensor_dev_attr_in7_max.dev_attr.attr,
+	&sensor_dev_attr_in5_alarm.dev_attr.attr,
+	&sensor_dev_attr_in6_alarm.dev_attr.attr,
+	&sensor_dev_attr_in7_alarm.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group lm85_group_in567 = {
+	.attrs = lm85_attributes_in567,
+};
+
+static void lm85_init_client(struct i2c_client *client)
+{
+	int value;
+
+	/* Start monitoring if needed */
+	value = lm85_read_value(client, LM85_REG_CONFIG);
+	if (!(value & 0x01)) {
+		dev_info(&client->dev, "Starting monitoring\n");
+		lm85_write_value(client, LM85_REG_CONFIG, value | 0x01);
+	}
+
+	/* Warn about unusual configuration bits */
+	if (value & 0x02)
+		dev_warn(&client->dev, "Device configuration is locked\n");
+	if (!(value & 0x04))
+		dev_warn(&client->dev, "Device is not ready\n");
+}
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int lm85_detect(struct i2c_client *client, int kind,
+		       struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+	int address = client->addr;
+	const char *type_name;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
+		/* We need to be able to do byte I/O */
+		return -ENODEV;
+	}
+
+	/* If auto-detecting, determine the chip type */
+	if (kind < 0) {
+		int company = lm85_read_value(client, LM85_REG_COMPANY);
+		int verstep = lm85_read_value(client, LM85_REG_VERSTEP);
+
+		dev_dbg(&adapter->dev, "Detecting device at 0x%02x with "
+			"COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
+			address, company, verstep);
+
+		/* All supported chips have the version in common */
+		if ((verstep & LM85_VERSTEP_VMASK) != LM85_VERSTEP_GENERIC) {
+			dev_dbg(&adapter->dev, "Autodetection failed: "
+				"unsupported version\n");
+			return -ENODEV;
+		}
+		kind = any_chip;
+
+		/* Now, refine the detection */
+		if (company == LM85_COMPANY_NATIONAL) {
+			switch (verstep) {
+			case LM85_VERSTEP_LM85C:
+				kind = lm85c;
+				break;
+			case LM85_VERSTEP_LM85B:
+				kind = lm85b;
+				break;
+			}
+		} else if (company == LM85_COMPANY_ANALOG_DEV) {
+			switch (verstep) {
+			case LM85_VERSTEP_ADM1027:
+				kind = adm1027;
+				break;
+			case LM85_VERSTEP_ADT7463:
+			case LM85_VERSTEP_ADT7463C:
+				kind = adt7463;
+				break;
+			case LM85_VERSTEP_ADT7468_1:
+			case LM85_VERSTEP_ADT7468_2:
+				kind = adt7468;
+				break;
+			}
+		} else if (company == LM85_COMPANY_SMSC) {
+			switch (verstep) {
+			case LM85_VERSTEP_EMC6D100_A0:
+			case LM85_VERSTEP_EMC6D100_A1:
+				/* Note: we can't tell a '100 from a '101 */
+				kind = emc6d100;
+				break;
+			case LM85_VERSTEP_EMC6D102:
+				kind = emc6d102;
+				break;
+			}
+		} else {
+			dev_dbg(&adapter->dev, "Autodetection failed: "
+				"unknown vendor\n");
+			return -ENODEV;
+		}
+	}
+
+	switch (kind) {
+	case lm85b:
+		type_name = "lm85b";
+		break;
+	case lm85c:
+		type_name = "lm85c";
+		break;
+	case adm1027:
+		type_name = "adm1027";
+		break;
+	case adt7463:
+		type_name = "adt7463";
+		break;
+	case adt7468:
+		type_name = "adt7468";
+		break;
+	case emc6d100:
+		type_name = "emc6d100";
+		break;
+	case emc6d102:
+		type_name = "emc6d102";
+		break;
+	default:
+		type_name = "lm85";
+	}
+	strlcpy(info->type, type_name, I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int lm85_probe(struct i2c_client *client,
+		      const struct i2c_device_id *id)
+{
+	struct lm85_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	i2c_set_clientdata(client, data);
+	data->type = id->driver_data;
+	mutex_init(&data->update_lock);
+
+	/* Fill in the chip specific driver values */
+	switch (data->type) {
+	case adm1027:
+	case adt7463:
+	case emc6d100:
+	case emc6d102:
+		data->freq_map = adm1027_freq_map;
+		break;
+	default:
+		data->freq_map = lm85_freq_map;
+	}
+
+	/* Set the VRM version */
+	data->vrm = vid_which_vrm();
+
+	/* Initialize the LM85 chip */
+	lm85_init_client(client);
+
+	/* Register sysfs hooks */
+	err = sysfs_create_group(&client->dev.kobj, &lm85_group);
+	if (err)
+		goto err_kfree;
+
+	/* The ADT7463/68 have an optional VRM 10 mode where pin 21 is used
+	   as a sixth digital VID input rather than an analog input. */
+	data->vid = lm85_read_value(client, LM85_REG_VID);
+	if (!((data->type == adt7463 || data->type == adt7468) &&
+	    (data->vid & 0x80)))
+		if ((err = sysfs_create_group(&client->dev.kobj,
+					&lm85_group_in4)))
+			goto err_remove_files;
+
+	/* The EMC6D100 has 3 additional voltage inputs */
+	if (data->type == emc6d100)
+		if ((err = sysfs_create_group(&client->dev.kobj,
+					&lm85_group_in567)))
+			goto err_remove_files;
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto err_remove_files;
+	}
+
+	return 0;
+
+	/* Error out and cleanup code */
+ err_remove_files:
+	sysfs_remove_group(&client->dev.kobj, &lm85_group);
+	sysfs_remove_group(&client->dev.kobj, &lm85_group_in4);
+	if (data->type == emc6d100)
+		sysfs_remove_group(&client->dev.kobj, &lm85_group_in567);
+ err_kfree:
+	kfree(data);
+	return err;
+}
+
+static int lm85_remove(struct i2c_client *client)
+{
+	struct lm85_data *data = i2c_get_clientdata(client);
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &lm85_group);
+	sysfs_remove_group(&client->dev.kobj, &lm85_group_in4);
+	if (data->type == emc6d100)
+		sysfs_remove_group(&client->dev.kobj, &lm85_group_in567);
+	kfree(data);
+	return 0;
+}
+
+
+static int lm85_read_value(struct i2c_client *client, u8 reg)
+{
+	int res;
+
+	/* What size location is it? */
+	switch (reg) {
+	case LM85_REG_FAN(0):  /* Read WORD data */
+	case LM85_REG_FAN(1):
+	case LM85_REG_FAN(2):
+	case LM85_REG_FAN(3):
+	case LM85_REG_FAN_MIN(0):
+	case LM85_REG_FAN_MIN(1):
+	case LM85_REG_FAN_MIN(2):
+	case LM85_REG_FAN_MIN(3):
+	case LM85_REG_ALARM1:	/* Read both bytes at once */
+		res = i2c_smbus_read_byte_data(client, reg) & 0xff;
+		res |= i2c_smbus_read_byte_data(client, reg + 1) << 8;
+		break;
+	default:	/* Read BYTE data */
+		res = i2c_smbus_read_byte_data(client, reg);
+		break;
+	}
+
+	return res;
+}
+
+static void lm85_write_value(struct i2c_client *client, u8 reg, int value)
+{
+	switch (reg) {
+	case LM85_REG_FAN(0):  /* Write WORD data */
+	case LM85_REG_FAN(1):
+	case LM85_REG_FAN(2):
+	case LM85_REG_FAN(3):
+	case LM85_REG_FAN_MIN(0):
+	case LM85_REG_FAN_MIN(1):
+	case LM85_REG_FAN_MIN(2):
+	case LM85_REG_FAN_MIN(3):
+	/* NOTE: ALARM is read only, so not included here */
+		i2c_smbus_write_byte_data(client, reg, value & 0xff);
+		i2c_smbus_write_byte_data(client, reg + 1, value >> 8);
+		break;
+	default:	/* Write BYTE data */
+		i2c_smbus_write_byte_data(client, reg, value);
+		break;
+	}
+}
+
+static struct lm85_data *lm85_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm85_data *data = i2c_get_clientdata(client);
+	int i;
+
+	mutex_lock(&data->update_lock);
+
+	if (!data->valid ||
+	     time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) {
+		/* Things that change quickly */
+		dev_dbg(&client->dev, "Reading sensor values\n");
+
+		/* Have to read extended bits first to "freeze" the
+		 * more significant bits that are read later.
+		 * There are 2 additional resolution bits per channel and we
+		 * have room for 4, so we shift them to the left.
+		 */
+		if (data->type == adm1027 || data->type == adt7463 ||
+		    data->type == adt7468) {
+			int ext1 = lm85_read_value(client,
+						   ADM1027_REG_EXTEND_ADC1);
+			int ext2 =  lm85_read_value(client,
+						    ADM1027_REG_EXTEND_ADC2);
+			int val = (ext1 << 8) + ext2;
+
+			for (i = 0; i <= 4; i++)
+				data->in_ext[i] =
+					((val >> (i * 2)) & 0x03) << 2;
+
+			for (i = 0; i <= 2; i++)
+				data->temp_ext[i] =
+					(val >> ((i + 4) * 2)) & 0x0c;
+		}
+
+		data->vid = lm85_read_value(client, LM85_REG_VID);
+
+		for (i = 0; i <= 3; ++i) {
+			data->in[i] =
+			    lm85_read_value(client, LM85_REG_IN(i));
+			data->fan[i] =
+			    lm85_read_value(client, LM85_REG_FAN(i));
+		}
+
+		if (!((data->type == adt7463 || data->type == adt7468) &&
+		    (data->vid & 0x80))) {
+			data->in[4] = lm85_read_value(client,
+				      LM85_REG_IN(4));
+		}
+
+		if (data->type == adt7468)
+			data->cfg5 = lm85_read_value(client, ADT7468_REG_CFG5);
+
+		for (i = 0; i <= 2; ++i) {
+			data->temp[i] =
+			    lm85_read_value(client, LM85_REG_TEMP(i));
+			data->pwm[i] =
+			    lm85_read_value(client, LM85_REG_PWM(i));
+
+			if (IS_ADT7468_OFF64(data))
+				data->temp[i] -= 64;
+		}
+
+		data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
+
+		if (data->type == emc6d100) {
+			/* Three more voltage sensors */
+			for (i = 5; i <= 7; ++i) {
+				data->in[i] = lm85_read_value(client,
+							EMC6D100_REG_IN(i));
+			}
+			/* More alarm bits */
+			data->alarms |= lm85_read_value(client,
+						EMC6D100_REG_ALARM3) << 16;
+		} else if (data->type == emc6d102) {
+			/* Have to read LSB bits after the MSB ones because
+			   the reading of the MSB bits has frozen the
+			   LSBs (backward from the ADM1027).
+			 */
+			int ext1 = lm85_read_value(client,
+						   EMC6D102_REG_EXTEND_ADC1);
+			int ext2 = lm85_read_value(client,
+						   EMC6D102_REG_EXTEND_ADC2);
+			int ext3 = lm85_read_value(client,
+						   EMC6D102_REG_EXTEND_ADC3);
+			int ext4 = lm85_read_value(client,
+						   EMC6D102_REG_EXTEND_ADC4);
+			data->in_ext[0] = ext3 & 0x0f;
+			data->in_ext[1] = ext4 & 0x0f;
+			data->in_ext[2] = ext4 >> 4;
+			data->in_ext[3] = ext3 >> 4;
+			data->in_ext[4] = ext2 >> 4;
+
+			data->temp_ext[0] = ext1 & 0x0f;
+			data->temp_ext[1] = ext2 & 0x0f;
+			data->temp_ext[2] = ext1 >> 4;
+		}
+
+		data->last_reading = jiffies;
+	}  /* last_reading */
+
+	if (!data->valid ||
+	     time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) {
+		/* Things that don't change often */
+		dev_dbg(&client->dev, "Reading config values\n");
+
+		for (i = 0; i <= 3; ++i) {
+			data->in_min[i] =
+			    lm85_read_value(client, LM85_REG_IN_MIN(i));
+			data->in_max[i] =
+			    lm85_read_value(client, LM85_REG_IN_MAX(i));
+			data->fan_min[i] =
+			    lm85_read_value(client, LM85_REG_FAN_MIN(i));
+		}
+
+		if (!((data->type == adt7463 || data->type == adt7468) &&
+		    (data->vid & 0x80))) {
+			data->in_min[4] = lm85_read_value(client,
+					  LM85_REG_IN_MIN(4));
+			data->in_max[4] = lm85_read_value(client,
+					  LM85_REG_IN_MAX(4));
+		}
+
+		if (data->type == emc6d100) {
+			for (i = 5; i <= 7; ++i) {
+				data->in_min[i] = lm85_read_value(client,
+						EMC6D100_REG_IN_MIN(i));
+				data->in_max[i] = lm85_read_value(client,
+						EMC6D100_REG_IN_MAX(i));
+			}
+		}
+
+		for (i = 0; i <= 2; ++i) {
+			int val;
+
+			data->temp_min[i] =
+			    lm85_read_value(client, LM85_REG_TEMP_MIN(i));
+			data->temp_max[i] =
+			    lm85_read_value(client, LM85_REG_TEMP_MAX(i));
+
+			data->autofan[i].config =
+			    lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
+			val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
+			data->pwm_freq[i] = val & 0x07;
+			data->zone[i].range = val >> 4;
+			data->autofan[i].min_pwm =
+			    lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
+			data->zone[i].limit =
+			    lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
+			data->zone[i].critical =
+			    lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
+
+			if (IS_ADT7468_OFF64(data)) {
+				data->temp_min[i] -= 64;
+				data->temp_max[i] -= 64;
+				data->zone[i].limit -= 64;
+				data->zone[i].critical -= 64;
+			}
+		}
+
+		i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
+		data->autofan[0].min_off = (i & 0x20) != 0;
+		data->autofan[1].min_off = (i & 0x40) != 0;
+		data->autofan[2].min_off = (i & 0x80) != 0;
+
+		i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
+		data->zone[0].hyst = i >> 4;
+		data->zone[1].hyst = i & 0x0f;
+
+		i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
+		data->zone[2].hyst = i >> 4;
+
+		data->last_config = jiffies;
+	}  /* last_config */
+
+	data->valid = 1;
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+
+static int __init sm_lm85_init(void)
+{
+	return i2c_add_driver(&lm85_driver);
+}
+
+static void __exit sm_lm85_exit(void)
+{
+	i2c_del_driver(&lm85_driver);
+}
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, "
+	"Margit Schubert-While <margitsw@t-online.de>, "
+	"Justin Thiessen <jthiessen@penguincomputing.com>");
+MODULE_DESCRIPTION("LM85-B, LM85-C driver");
+
+module_init(sm_lm85_init);
+module_exit(sm_lm85_exit);
diff --git a/drivers/hwmon/lm87.c b/drivers/hwmon/lm87.c
new file mode 100644
index 0000000..2e4a3ce
--- /dev/null
+++ b/drivers/hwmon/lm87.c
@@ -0,0 +1,990 @@
+/*
+ * lm87.c
+ *
+ * Copyright (C) 2000       Frodo Looijaard <frodol@dds.nl>
+ *                          Philip Edelbrock <phil@netroedge.com>
+ *                          Stephen Rousset <stephen.rousset@rocketlogix.com>
+ *                          Dan Eaton <dan.eaton@rocketlogix.com>
+ * Copyright (C) 2004-2008  Jean Delvare <khali@linux-fr.org>
+ *
+ * Original port to Linux 2.6 by Jeff Oliver.
+ *
+ * The LM87 is a sensor chip made by National Semiconductor. It monitors up
+ * to 8 voltages (including its own power source), up to three temperatures
+ * (its own plus up to two external ones) and up to two fans. The default
+ * configuration is 6 voltages, two temperatures and two fans (see below).
+ * Voltages are scaled internally with ratios such that the nominal value of
+ * each voltage correspond to a register value of 192 (which means a
+ * resolution of about 0.5% of the nominal value). Temperature values are
+ * reported with a 1 deg resolution and a 3-4 deg accuracy. Complete
+ * datasheet can be obtained from National's website at:
+ *   http://www.national.com/pf/LM/LM87.html
+ *
+ * Some functions share pins, so not all functions are available at the same
+ * time. Which are depends on the hardware setup. This driver normally
+ * assumes that firmware configured the chip correctly. Where this is not
+ * the case, platform code must set the I2C client's platform_data to point
+ * to a u8 value to be written to the channel register.
+ * For reference, here is the list of exclusive functions:
+ *  - in0+in5 (default) or temp3
+ *  - fan1 (default) or in6
+ *  - fan2 (default) or in7
+ *  - VID lines (default) or IRQ lines (not handled by this driver)
+ *
+ * The LM87 additionally features an analog output, supposedly usable to
+ * control the speed of a fan. All new chips use pulse width modulation
+ * instead. The LM87 is the only hardware monitoring chipset I know of
+ * which uses amplitude modulation. Be careful when using this feature.
+ *
+ * This driver also supports the ADM1024, a sensor chip made by Analog
+ * Devices. That chip is fully compatible with the LM87. Complete
+ * datasheet can be obtained from Analog's website at:
+ *   http://www.analog.com/en/prod/0,2877,ADM1024,00.html
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon-vid.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+/*
+ * Addresses to scan
+ * LM87 has three possible addresses: 0x2c, 0x2d and 0x2e.
+ */
+
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
+
+/*
+ * Insmod parameters
+ */
+
+I2C_CLIENT_INSMOD_2(lm87, adm1024);
+
+/*
+ * The LM87 registers
+ */
+
+/* nr in 0..5 */
+#define LM87_REG_IN(nr)			(0x20 + (nr))
+#define LM87_REG_IN_MAX(nr)		(0x2B + (nr) * 2)
+#define LM87_REG_IN_MIN(nr)		(0x2C + (nr) * 2)
+/* nr in 0..1 */
+#define LM87_REG_AIN(nr)		(0x28 + (nr))
+#define LM87_REG_AIN_MIN(nr)		(0x1A + (nr))
+#define LM87_REG_AIN_MAX(nr)		(0x3B + (nr))
+
+static u8 LM87_REG_TEMP[3] = { 0x27, 0x26, 0x20 };
+static u8 LM87_REG_TEMP_HIGH[3] = { 0x39, 0x37, 0x2B };
+static u8 LM87_REG_TEMP_LOW[3] = { 0x3A, 0x38, 0x2C };
+
+#define LM87_REG_TEMP_HW_INT_LOCK	0x13
+#define LM87_REG_TEMP_HW_EXT_LOCK	0x14
+#define LM87_REG_TEMP_HW_INT		0x17
+#define LM87_REG_TEMP_HW_EXT		0x18
+
+/* nr in 0..1 */
+#define LM87_REG_FAN(nr)		(0x28 + (nr))
+#define LM87_REG_FAN_MIN(nr)		(0x3B + (nr))
+#define LM87_REG_AOUT			0x19
+
+#define LM87_REG_CONFIG			0x40
+#define LM87_REG_CHANNEL_MODE		0x16
+#define LM87_REG_VID_FAN_DIV		0x47
+#define LM87_REG_VID4			0x49
+
+#define LM87_REG_ALARMS1		0x41
+#define LM87_REG_ALARMS2		0x42
+
+#define LM87_REG_COMPANY_ID		0x3E
+#define LM87_REG_REVISION		0x3F
+
+/*
+ * Conversions and various macros
+ * The LM87 uses signed 8-bit values for temperatures.
+ */
+
+#define IN_FROM_REG(reg,scale)	(((reg) * (scale) + 96) / 192)
+#define IN_TO_REG(val,scale)	((val) <= 0 ? 0 : \
+				 (val) * 192 >= (scale) * 255 ? 255 : \
+				 ((val) * 192 + (scale)/2) / (scale))
+
+#define TEMP_FROM_REG(reg)	((reg) * 1000)
+#define TEMP_TO_REG(val)	((val) <= -127500 ? -128 : \
+				 (val) >= 126500 ? 127 : \
+				 (((val) < 0 ? (val)-500 : (val)+500) / 1000))
+
+#define FAN_FROM_REG(reg,div)	((reg) == 255 || (reg) == 0 ? 0 : \
+				 (1350000 + (reg)*(div) / 2) / ((reg)*(div)))
+#define FAN_TO_REG(val,div)	((val)*(div) * 255 <= 1350000 ? 255 : \
+				 (1350000 + (val)*(div) / 2) / ((val)*(div)))
+
+#define FAN_DIV_FROM_REG(reg)	(1 << (reg))
+
+/* analog out is 9.80mV/LSB */
+#define AOUT_FROM_REG(reg)	(((reg) * 98 + 5) / 10)
+#define AOUT_TO_REG(val)	((val) <= 0 ? 0 : \
+				 (val) >= 2500 ? 255 : \
+				 ((val) * 10 + 49) / 98)
+
+/* nr in 0..1 */
+#define CHAN_NO_FAN(nr)		(1 << (nr))
+#define CHAN_TEMP3		(1 << 2)
+#define CHAN_VCC_5V		(1 << 3)
+#define CHAN_NO_VID		(1 << 7)
+
+/*
+ * Functions declaration
+ */
+
+static int lm87_probe(struct i2c_client *client,
+		      const struct i2c_device_id *id);
+static int lm87_detect(struct i2c_client *new_client, int kind,
+		       struct i2c_board_info *info);
+static void lm87_init_client(struct i2c_client *client);
+static int lm87_remove(struct i2c_client *client);
+static struct lm87_data *lm87_update_device(struct device *dev);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static const struct i2c_device_id lm87_id[] = {
+	{ "lm87", lm87 },
+	{ "adm1024", adm1024 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, lm87_id);
+
+static struct i2c_driver lm87_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "lm87",
+	},
+	.probe		= lm87_probe,
+	.remove		= lm87_remove,
+	.id_table	= lm87_id,
+	.detect		= lm87_detect,
+	.address_data	= &addr_data,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct lm87_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	char valid; /* zero until following fields are valid */
+	unsigned long last_updated; /* In jiffies */
+
+	u8 channel;		/* register value */
+	u8 config;		/* original register value */
+
+	u8 in[8];		/* register value */
+	u8 in_max[8];		/* register value */
+	u8 in_min[8];		/* register value */
+	u16 in_scale[8];
+
+	s8 temp[3];		/* register value */
+	s8 temp_high[3];	/* register value */
+	s8 temp_low[3];		/* register value */
+	s8 temp_crit_int;	/* min of two register values */
+	s8 temp_crit_ext;	/* min of two register values */
+
+	u8 fan[2];		/* register value */
+	u8 fan_min[2];		/* register value */
+	u8 fan_div[2];		/* register value, shifted right */
+	u8 aout;		/* register value */
+
+	u16 alarms;		/* register values, combined */
+	u8 vid;			/* register values, combined */
+	u8 vrm;
+};
+
+/*
+ * Sysfs stuff
+ */
+
+static inline int lm87_read_value(struct i2c_client *client, u8 reg)
+{
+	return i2c_smbus_read_byte_data(client, reg);
+}
+
+static inline int lm87_write_value(struct i2c_client *client, u8 reg, u8 value)
+{
+	return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+#define show_in(offset) \
+static ssize_t show_in##offset##_input(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+	struct lm87_data *data = lm87_update_device(dev); \
+	return sprintf(buf, "%u\n", IN_FROM_REG(data->in[offset], \
+		       data->in_scale[offset])); \
+} \
+static ssize_t show_in##offset##_min(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+	struct lm87_data *data = lm87_update_device(dev); \
+	return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[offset], \
+		       data->in_scale[offset])); \
+} \
+static ssize_t show_in##offset##_max(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+	struct lm87_data *data = lm87_update_device(dev); \
+	return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[offset], \
+		       data->in_scale[offset])); \
+} \
+static DEVICE_ATTR(in##offset##_input, S_IRUGO, \
+		show_in##offset##_input, NULL);
+show_in(0);
+show_in(1);
+show_in(2);
+show_in(3);
+show_in(4);
+show_in(5);
+show_in(6);
+show_in(7);
+
+static void set_in_min(struct device *dev, const char *buf, int nr)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm87_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_min[nr] = IN_TO_REG(val, data->in_scale[nr]);
+	lm87_write_value(client, nr<6 ? LM87_REG_IN_MIN(nr) :
+			 LM87_REG_AIN_MIN(nr-6), data->in_min[nr]);
+	mutex_unlock(&data->update_lock);
+}
+
+static void set_in_max(struct device *dev, const char *buf, int nr)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm87_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_max[nr] = IN_TO_REG(val, data->in_scale[nr]);
+	lm87_write_value(client, nr<6 ? LM87_REG_IN_MAX(nr) :
+			 LM87_REG_AIN_MAX(nr-6), data->in_max[nr]);
+	mutex_unlock(&data->update_lock);
+}
+
+#define set_in(offset) \
+static ssize_t set_in##offset##_min(struct device *dev, struct device_attribute *attr, \
+		const char *buf, size_t count) \
+{ \
+	set_in_min(dev, buf, offset); \
+	return count; \
+} \
+static ssize_t set_in##offset##_max(struct device *dev, struct device_attribute *attr, \
+		const char *buf, size_t count) \
+{ \
+	set_in_max(dev, buf, offset); \
+	return count; \
+} \
+static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
+		show_in##offset##_min, set_in##offset##_min); \
+static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
+		show_in##offset##_max, set_in##offset##_max);
+set_in(0);
+set_in(1);
+set_in(2);
+set_in(3);
+set_in(4);
+set_in(5);
+set_in(6);
+set_in(7);
+
+#define show_temp(offset) \
+static ssize_t show_temp##offset##_input(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+	struct lm87_data *data = lm87_update_device(dev); \
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[offset-1])); \
+} \
+static ssize_t show_temp##offset##_low(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+	struct lm87_data *data = lm87_update_device(dev); \
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_low[offset-1])); \
+} \
+static ssize_t show_temp##offset##_high(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+	struct lm87_data *data = lm87_update_device(dev); \
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[offset-1])); \
+}\
+static DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
+		show_temp##offset##_input, NULL);
+show_temp(1);
+show_temp(2);
+show_temp(3);
+
+static void set_temp_low(struct device *dev, const char *buf, int nr)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm87_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_low[nr] = TEMP_TO_REG(val);
+	lm87_write_value(client, LM87_REG_TEMP_LOW[nr], data->temp_low[nr]);
+	mutex_unlock(&data->update_lock);
+}
+
+static void set_temp_high(struct device *dev, const char *buf, int nr)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm87_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_high[nr] = TEMP_TO_REG(val);
+	lm87_write_value(client, LM87_REG_TEMP_HIGH[nr], data->temp_high[nr]);
+	mutex_unlock(&data->update_lock);
+}
+
+#define set_temp(offset) \
+static ssize_t set_temp##offset##_low(struct device *dev, struct device_attribute *attr, \
+		const char *buf, size_t count) \
+{ \
+	set_temp_low(dev, buf, offset-1); \
+	return count; \
+} \
+static ssize_t set_temp##offset##_high(struct device *dev, struct device_attribute *attr, \
+		const char *buf, size_t count) \
+{ \
+	set_temp_high(dev, buf, offset-1); \
+	return count; \
+} \
+static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
+		show_temp##offset##_high, set_temp##offset##_high); \
+static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
+		show_temp##offset##_low, set_temp##offset##_low);
+set_temp(1);
+set_temp(2);
+set_temp(3);
+
+static ssize_t show_temp_crit_int(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct lm87_data *data = lm87_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit_int));
+}
+
+static ssize_t show_temp_crit_ext(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct lm87_data *data = lm87_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit_ext));
+}
+
+static DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp_crit_int, NULL);
+static DEVICE_ATTR(temp2_crit, S_IRUGO, show_temp_crit_ext, NULL);
+static DEVICE_ATTR(temp3_crit, S_IRUGO, show_temp_crit_ext, NULL);
+
+#define show_fan(offset) \
+static ssize_t show_fan##offset##_input(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+	struct lm87_data *data = lm87_update_device(dev); \
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[offset-1], \
+		       FAN_DIV_FROM_REG(data->fan_div[offset-1]))); \
+} \
+static ssize_t show_fan##offset##_min(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+	struct lm87_data *data = lm87_update_device(dev); \
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[offset-1], \
+		       FAN_DIV_FROM_REG(data->fan_div[offset-1]))); \
+} \
+static ssize_t show_fan##offset##_div(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+	struct lm87_data *data = lm87_update_device(dev); \
+	return sprintf(buf, "%d\n", FAN_DIV_FROM_REG(data->fan_div[offset-1])); \
+} \
+static DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
+		show_fan##offset##_input, NULL);
+show_fan(1);
+show_fan(2);
+
+static void set_fan_min(struct device *dev, const char *buf, int nr)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm87_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->fan_min[nr] = FAN_TO_REG(val,
+			    FAN_DIV_FROM_REG(data->fan_div[nr]));
+	lm87_write_value(client, LM87_REG_FAN_MIN(nr), data->fan_min[nr]);
+	mutex_unlock(&data->update_lock);
+}
+
+/* Note: we save and restore the fan minimum here, because its value is
+   determined in part by the fan clock divider.  This follows the principle
+   of least surprise; the user doesn't expect the fan minimum to change just
+   because the divider changed. */
+static ssize_t set_fan_div(struct device *dev, const char *buf,
+		size_t count, int nr)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm87_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+	unsigned long min;
+	u8 reg;
+
+	mutex_lock(&data->update_lock);
+	min = FAN_FROM_REG(data->fan_min[nr],
+			   FAN_DIV_FROM_REG(data->fan_div[nr]));
+
+	switch (val) {
+	case 1: data->fan_div[nr] = 0; break;
+	case 2: data->fan_div[nr] = 1; break;
+	case 4: data->fan_div[nr] = 2; break;
+	case 8: data->fan_div[nr] = 3; break;
+	default:
+		mutex_unlock(&data->update_lock);
+		return -EINVAL;
+	}
+
+	reg = lm87_read_value(client, LM87_REG_VID_FAN_DIV);
+	switch (nr) {
+	case 0:
+	    reg = (reg & 0xCF) | (data->fan_div[0] << 4);
+	    break;
+	case 1:
+	    reg = (reg & 0x3F) | (data->fan_div[1] << 6);
+	    break;
+	}
+	lm87_write_value(client, LM87_REG_VID_FAN_DIV, reg);
+
+	data->fan_min[nr] = FAN_TO_REG(min, val);
+	lm87_write_value(client, LM87_REG_FAN_MIN(nr),
+			 data->fan_min[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+#define set_fan(offset) \
+static ssize_t set_fan##offset##_min(struct device *dev, struct device_attribute *attr, const char *buf, \
+		size_t count) \
+{ \
+	set_fan_min(dev, buf, offset-1); \
+	return count; \
+} \
+static ssize_t set_fan##offset##_div(struct device *dev, struct device_attribute *attr, const char *buf, \
+		size_t count) \
+{ \
+	return set_fan_div(dev, buf, count, offset-1); \
+} \
+static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
+		show_fan##offset##_min, set_fan##offset##_min); \
+static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
+		show_fan##offset##_div, set_fan##offset##_div);
+set_fan(1);
+set_fan(2);
+
+static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct lm87_data *data = lm87_update_device(dev);
+	return sprintf(buf, "%d\n", data->alarms);
+}
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct lm87_data *data = lm87_update_device(dev);
+	return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
+}
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
+
+static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct lm87_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%d\n", data->vrm);
+}
+static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct lm87_data *data = dev_get_drvdata(dev);
+	data->vrm = simple_strtoul(buf, NULL, 10);
+	return count;
+}
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
+
+static ssize_t show_aout(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct lm87_data *data = lm87_update_device(dev);
+	return sprintf(buf, "%d\n", AOUT_FROM_REG(data->aout));
+}
+static ssize_t set_aout(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm87_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->aout = AOUT_TO_REG(val);
+	lm87_write_value(client, LM87_REG_AOUT, data->aout);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static DEVICE_ATTR(aout_output, S_IRUGO | S_IWUSR, show_aout, set_aout);
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	struct lm87_data *data = lm87_update_device(dev);
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
+}
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 9);
+static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 7);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7);
+static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 14);
+static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15);
+
+/*
+ * Real code
+ */
+
+static struct attribute *lm87_attributes[] = {
+	&dev_attr_in1_input.attr,
+	&dev_attr_in1_min.attr,
+	&dev_attr_in1_max.attr,
+	&sensor_dev_attr_in1_alarm.dev_attr.attr,
+	&dev_attr_in2_input.attr,
+	&dev_attr_in2_min.attr,
+	&dev_attr_in2_max.attr,
+	&sensor_dev_attr_in2_alarm.dev_attr.attr,
+	&dev_attr_in3_input.attr,
+	&dev_attr_in3_min.attr,
+	&dev_attr_in3_max.attr,
+	&sensor_dev_attr_in3_alarm.dev_attr.attr,
+	&dev_attr_in4_input.attr,
+	&dev_attr_in4_min.attr,
+	&dev_attr_in4_max.attr,
+	&sensor_dev_attr_in4_alarm.dev_attr.attr,
+
+	&dev_attr_temp1_input.attr,
+	&dev_attr_temp1_max.attr,
+	&dev_attr_temp1_min.attr,
+	&dev_attr_temp1_crit.attr,
+	&sensor_dev_attr_temp1_alarm.dev_attr.attr,
+	&dev_attr_temp2_input.attr,
+	&dev_attr_temp2_max.attr,
+	&dev_attr_temp2_min.attr,
+	&dev_attr_temp2_crit.attr,
+	&sensor_dev_attr_temp2_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_fault.dev_attr.attr,
+
+	&dev_attr_alarms.attr,
+	&dev_attr_aout_output.attr,
+
+	NULL
+};
+
+static const struct attribute_group lm87_group = {
+	.attrs = lm87_attributes,
+};
+
+static struct attribute *lm87_attributes_opt[] = {
+	&dev_attr_in6_input.attr,
+	&dev_attr_in6_min.attr,
+	&dev_attr_in6_max.attr,
+	&sensor_dev_attr_in6_alarm.dev_attr.attr,
+
+	&dev_attr_fan1_input.attr,
+	&dev_attr_fan1_min.attr,
+	&dev_attr_fan1_div.attr,
+	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
+
+	&dev_attr_in7_input.attr,
+	&dev_attr_in7_min.attr,
+	&dev_attr_in7_max.attr,
+	&sensor_dev_attr_in7_alarm.dev_attr.attr,
+
+	&dev_attr_fan2_input.attr,
+	&dev_attr_fan2_min.attr,
+	&dev_attr_fan2_div.attr,
+	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
+
+	&dev_attr_temp3_input.attr,
+	&dev_attr_temp3_max.attr,
+	&dev_attr_temp3_min.attr,
+	&dev_attr_temp3_crit.attr,
+	&sensor_dev_attr_temp3_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp3_fault.dev_attr.attr,
+
+	&dev_attr_in0_input.attr,
+	&dev_attr_in0_min.attr,
+	&dev_attr_in0_max.attr,
+	&sensor_dev_attr_in0_alarm.dev_attr.attr,
+	&dev_attr_in5_input.attr,
+	&dev_attr_in5_min.attr,
+	&dev_attr_in5_max.attr,
+	&sensor_dev_attr_in5_alarm.dev_attr.attr,
+
+	&dev_attr_cpu0_vid.attr,
+	&dev_attr_vrm.attr,
+
+	NULL
+};
+
+static const struct attribute_group lm87_group_opt = {
+	.attrs = lm87_attributes_opt,
+};
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int lm87_detect(struct i2c_client *new_client, int kind,
+		       struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = new_client->adapter;
+	static const char *names[] = { "lm87", "adm1024" };
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	/* Default to an LM87 if forced */
+	if (kind == 0)
+		kind = lm87;
+
+	/* Now, we do the remaining detection. */
+	if (kind < 0) {
+		u8 cid = lm87_read_value(new_client, LM87_REG_COMPANY_ID);
+		u8 rev = lm87_read_value(new_client, LM87_REG_REVISION);
+
+		if (cid == 0x02			/* National Semiconductor */
+		 && (rev >= 0x01 && rev <= 0x08))
+			kind = lm87;
+		else if (cid == 0x41		/* Analog Devices */
+		      && (rev & 0xf0) == 0x10)
+			kind = adm1024;
+
+		if (kind < 0
+		 || (lm87_read_value(new_client, LM87_REG_CONFIG) & 0x80)) {
+			dev_dbg(&adapter->dev,
+				"LM87 detection failed at 0x%02x.\n",
+				new_client->addr);
+			return -ENODEV;
+		}
+	}
+
+	strlcpy(info->type, names[kind - 1], I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int lm87_probe(struct i2c_client *new_client,
+		      const struct i2c_device_id *id)
+{
+	struct lm87_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct lm87_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(new_client, data);
+	data->valid = 0;
+	mutex_init(&data->update_lock);
+
+	/* Initialize the LM87 chip */
+	lm87_init_client(new_client);
+
+	data->in_scale[0] = 2500;
+	data->in_scale[1] = 2700;
+	data->in_scale[2] = (data->channel & CHAN_VCC_5V) ? 5000 : 3300;
+	data->in_scale[3] = 5000;
+	data->in_scale[4] = 12000;
+	data->in_scale[5] = 2700;
+	data->in_scale[6] = 1875;
+	data->in_scale[7] = 1875;
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&new_client->dev.kobj, &lm87_group)))
+		goto exit_free;
+
+	if (data->channel & CHAN_NO_FAN(0)) {
+		if ((err = device_create_file(&new_client->dev,
+					&dev_attr_in6_input))
+		 || (err = device_create_file(&new_client->dev,
+					&dev_attr_in6_min))
+		 || (err = device_create_file(&new_client->dev,
+					&dev_attr_in6_max))
+		 || (err = device_create_file(&new_client->dev,
+					&sensor_dev_attr_in6_alarm.dev_attr)))
+			goto exit_remove;
+	} else {
+		if ((err = device_create_file(&new_client->dev,
+					&dev_attr_fan1_input))
+		 || (err = device_create_file(&new_client->dev,
+					&dev_attr_fan1_min))
+		 || (err = device_create_file(&new_client->dev,
+					&dev_attr_fan1_div))
+		 || (err = device_create_file(&new_client->dev,
+					&sensor_dev_attr_fan1_alarm.dev_attr)))
+			goto exit_remove;
+	}
+
+	if (data->channel & CHAN_NO_FAN(1)) {
+		if ((err = device_create_file(&new_client->dev,
+					&dev_attr_in7_input))
+		 || (err = device_create_file(&new_client->dev,
+					&dev_attr_in7_min))
+		 || (err = device_create_file(&new_client->dev,
+					&dev_attr_in7_max))
+		 || (err = device_create_file(&new_client->dev,
+					&sensor_dev_attr_in7_alarm.dev_attr)))
+			goto exit_remove;
+	} else {
+		if ((err = device_create_file(&new_client->dev,
+					&dev_attr_fan2_input))
+		 || (err = device_create_file(&new_client->dev,
+					&dev_attr_fan2_min))
+		 || (err = device_create_file(&new_client->dev,
+					&dev_attr_fan2_div))
+		 || (err = device_create_file(&new_client->dev,
+					&sensor_dev_attr_fan2_alarm.dev_attr)))
+			goto exit_remove;
+	}
+
+	if (data->channel & CHAN_TEMP3) {
+		if ((err = device_create_file(&new_client->dev,
+					&dev_attr_temp3_input))
+		 || (err = device_create_file(&new_client->dev,
+					&dev_attr_temp3_max))
+		 || (err = device_create_file(&new_client->dev,
+					&dev_attr_temp3_min))
+		 || (err = device_create_file(&new_client->dev,
+					&dev_attr_temp3_crit))
+		 || (err = device_create_file(&new_client->dev,
+					&sensor_dev_attr_temp3_alarm.dev_attr))
+		 || (err = device_create_file(&new_client->dev,
+					&sensor_dev_attr_temp3_fault.dev_attr)))
+			goto exit_remove;
+	} else {
+		if ((err = device_create_file(&new_client->dev,
+					&dev_attr_in0_input))
+		 || (err = device_create_file(&new_client->dev,
+					&dev_attr_in0_min))
+		 || (err = device_create_file(&new_client->dev,
+					&dev_attr_in0_max))
+		 || (err = device_create_file(&new_client->dev,
+					&sensor_dev_attr_in0_alarm.dev_attr))
+		 || (err = device_create_file(&new_client->dev,
+					&dev_attr_in5_input))
+		 || (err = device_create_file(&new_client->dev,
+					&dev_attr_in5_min))
+		 || (err = device_create_file(&new_client->dev,
+					&dev_attr_in5_max))
+		 || (err = device_create_file(&new_client->dev,
+					&sensor_dev_attr_in5_alarm.dev_attr)))
+			goto exit_remove;
+	}
+
+	if (!(data->channel & CHAN_NO_VID)) {
+		data->vrm = vid_which_vrm();
+		if ((err = device_create_file(&new_client->dev,
+					&dev_attr_cpu0_vid))
+		 || (err = device_create_file(&new_client->dev,
+					&dev_attr_vrm)))
+			goto exit_remove;
+	}
+
+	data->hwmon_dev = hwmon_device_register(&new_client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	return 0;
+
+exit_remove:
+	sysfs_remove_group(&new_client->dev.kobj, &lm87_group);
+	sysfs_remove_group(&new_client->dev.kobj, &lm87_group_opt);
+exit_free:
+	lm87_write_value(new_client, LM87_REG_CONFIG, data->config);
+	kfree(data);
+exit:
+	return err;
+}
+
+static void lm87_init_client(struct i2c_client *client)
+{
+	struct lm87_data *data = i2c_get_clientdata(client);
+
+	if (client->dev.platform_data) {
+		data->channel = *(u8 *)client->dev.platform_data;
+		lm87_write_value(client,
+				 LM87_REG_CHANNEL_MODE, data->channel);
+	} else {
+		data->channel = lm87_read_value(client, LM87_REG_CHANNEL_MODE);
+	}
+	data->config = lm87_read_value(client, LM87_REG_CONFIG) & 0x6F;
+
+	if (!(data->config & 0x01)) {
+		int i;
+
+		/* Limits are left uninitialized after power-up */
+		for (i = 1; i < 6; i++) {
+			lm87_write_value(client, LM87_REG_IN_MIN(i), 0x00);
+			lm87_write_value(client, LM87_REG_IN_MAX(i), 0xFF);
+		}
+		for (i = 0; i < 2; i++) {
+			lm87_write_value(client, LM87_REG_TEMP_HIGH[i], 0x7F);
+			lm87_write_value(client, LM87_REG_TEMP_LOW[i], 0x00);
+			lm87_write_value(client, LM87_REG_AIN_MIN(i), 0x00);
+			lm87_write_value(client, LM87_REG_AIN_MAX(i), 0xFF);
+		}
+		if (data->channel & CHAN_TEMP3) {
+			lm87_write_value(client, LM87_REG_TEMP_HIGH[2], 0x7F);
+			lm87_write_value(client, LM87_REG_TEMP_LOW[2], 0x00);
+		} else {
+			lm87_write_value(client, LM87_REG_IN_MIN(0), 0x00);
+			lm87_write_value(client, LM87_REG_IN_MAX(0), 0xFF);
+		}
+	}
+
+	/* Make sure Start is set and INT#_Clear is clear */
+	if ((data->config & 0x09) != 0x01)
+		lm87_write_value(client, LM87_REG_CONFIG,
+				 (data->config & 0x77) | 0x01);
+}
+
+static int lm87_remove(struct i2c_client *client)
+{
+	struct lm87_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &lm87_group);
+	sysfs_remove_group(&client->dev.kobj, &lm87_group_opt);
+
+	lm87_write_value(client, LM87_REG_CONFIG, data->config);
+	kfree(data);
+	return 0;
+}
+
+static struct lm87_data *lm87_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm87_data *data = i2c_get_clientdata(client);
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
+		int i, j;
+
+		dev_dbg(&client->dev, "Updating data.\n");
+
+		i = (data->channel & CHAN_TEMP3) ? 1 : 0;
+		j = (data->channel & CHAN_TEMP3) ? 5 : 6;
+		for (; i < j; i++) {
+			data->in[i] = lm87_read_value(client,
+				      LM87_REG_IN(i));
+			data->in_min[i] = lm87_read_value(client,
+					  LM87_REG_IN_MIN(i));
+			data->in_max[i] = lm87_read_value(client,
+					  LM87_REG_IN_MAX(i));
+		}
+
+		for (i = 0; i < 2; i++) {
+			if (data->channel & CHAN_NO_FAN(i)) {
+				data->in[6+i] = lm87_read_value(client,
+						LM87_REG_AIN(i));
+				data->in_max[6+i] = lm87_read_value(client,
+						    LM87_REG_AIN_MAX(i));
+				data->in_min[6+i] = lm87_read_value(client,
+						    LM87_REG_AIN_MIN(i));
+
+			} else {
+				data->fan[i] = lm87_read_value(client,
+					       LM87_REG_FAN(i));
+				data->fan_min[i] = lm87_read_value(client,
+						   LM87_REG_FAN_MIN(i));
+			}
+		}
+
+		j = (data->channel & CHAN_TEMP3) ? 3 : 2;
+		for (i = 0 ; i < j; i++) {
+			data->temp[i] = lm87_read_value(client,
+					LM87_REG_TEMP[i]);
+			data->temp_high[i] = lm87_read_value(client,
+					     LM87_REG_TEMP_HIGH[i]);
+			data->temp_low[i] = lm87_read_value(client,
+					    LM87_REG_TEMP_LOW[i]);
+		}
+
+		i = lm87_read_value(client, LM87_REG_TEMP_HW_INT_LOCK);
+		j = lm87_read_value(client, LM87_REG_TEMP_HW_INT);
+		data->temp_crit_int = min(i, j);
+
+		i = lm87_read_value(client, LM87_REG_TEMP_HW_EXT_LOCK);
+		j = lm87_read_value(client, LM87_REG_TEMP_HW_EXT);
+		data->temp_crit_ext = min(i, j);
+
+		i = lm87_read_value(client, LM87_REG_VID_FAN_DIV);
+		data->fan_div[0] = (i >> 4) & 0x03;
+		data->fan_div[1] = (i >> 6) & 0x03;
+		data->vid = (i & 0x0F)
+			  | (lm87_read_value(client, LM87_REG_VID4) & 0x01)
+			     << 4;
+
+		data->alarms = lm87_read_value(client, LM87_REG_ALARMS1)
+			     | (lm87_read_value(client, LM87_REG_ALARMS2)
+				<< 8);
+		data->aout = lm87_read_value(client, LM87_REG_AOUT);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init sensors_lm87_init(void)
+{
+	return i2c_add_driver(&lm87_driver);
+}
+
+static void __exit sensors_lm87_exit(void)
+{
+	i2c_del_driver(&lm87_driver);
+}
+
+MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org> and others");
+MODULE_DESCRIPTION("LM87 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_lm87_init);
+module_exit(sensors_lm87_exit);
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
new file mode 100644
index 0000000..96a7018
--- /dev/null
+++ b/drivers/hwmon/lm90.c
@@ -0,0 +1,1035 @@
+/*
+ * lm90.c - Part of lm_sensors, Linux kernel modules for hardware
+ *          monitoring
+ * Copyright (C) 2003-2008  Jean Delvare <khali@linux-fr.org>
+ *
+ * Based on the lm83 driver. The LM90 is a sensor chip made by National
+ * Semiconductor. It reports up to two temperatures (its own plus up to
+ * one external one) with a 0.125 deg resolution (1 deg for local
+ * temperature) and a 3-4 deg accuracy.
+ *
+ * This driver also supports the LM89 and LM99, two other sensor chips
+ * made by National Semiconductor. Both have an increased remote
+ * temperature measurement accuracy (1 degree), and the LM99
+ * additionally shifts remote temperatures (measured and limits) by 16
+ * degrees, which allows for higher temperatures measurement.
+ * Note that there is no way to differentiate between both chips.
+ * When device is auto-detected, the driver will assume an LM99.
+ *
+ * This driver also supports the LM86, another sensor chip made by
+ * National Semiconductor. It is exactly similar to the LM90 except it
+ * has a higher accuracy.
+ *
+ * This driver also supports the ADM1032, a sensor chip made by Analog
+ * Devices. That chip is similar to the LM90, with a few differences
+ * that are not handled by this driver. Among others, it has a higher
+ * accuracy than the LM90, much like the LM86 does.
+ *
+ * This driver also supports the MAX6657, MAX6658 and MAX6659 sensor
+ * chips made by Maxim. These chips are similar to the LM86.
+ * Note that there is no easy way to differentiate between the three
+ * variants. The extra address and features of the MAX6659 are not
+ * supported by this driver. These chips lack the remote temperature
+ * offset feature.
+ *
+ * This driver also supports the MAX6646, MAX6647 and MAX6649 chips
+ * made by Maxim.  These are again similar to the LM86, but they use
+ * unsigned temperature values and can report temperatures from 0 to
+ * 145 degrees.
+ *
+ * This driver also supports the MAX6680 and MAX6681, two other sensor
+ * chips made by Maxim. These are quite similar to the other Maxim
+ * chips. The MAX6680 and MAX6681 only differ in the pinout so they can
+ * be treated identically.
+ *
+ * This driver also supports the ADT7461 chip from Analog Devices.
+ * It's supported in both compatibility and extended mode. It is mostly
+ * compatible with LM90 except for a data format difference for the
+ * temperature value registers.
+ *
+ * Since the LM90 was the first chipset supported by this driver, most
+ * comments will refer to this chipset, but are actually general and
+ * concern all supported chipsets, unless mentioned otherwise.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+
+/*
+ * Addresses to scan
+ * Address is fully defined internally and cannot be changed except for
+ * MAX6659, MAX6680 and MAX6681.
+ * LM86, LM89, LM90, LM99, ADM1032, ADM1032-1, ADT7461, MAX6649, MAX6657
+ * and MAX6658 have address 0x4c.
+ * ADM1032-2, ADT7461-2, LM89-1, LM99-1 and MAX6646 have address 0x4d.
+ * MAX6647 has address 0x4e.
+ * MAX6659 can have address 0x4c, 0x4d or 0x4e (unsupported).
+ * MAX6680 and MAX6681 can have address 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b,
+ * 0x4c, 0x4d or 0x4e.
+ */
+
+static const unsigned short normal_i2c[] = {
+	0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e, I2C_CLIENT_END };
+
+/*
+ * Insmod parameters
+ */
+
+I2C_CLIENT_INSMOD_8(lm90, adm1032, lm99, lm86, max6657, adt7461, max6680,
+		    max6646);
+
+/*
+ * The LM90 registers
+ */
+
+#define LM90_REG_R_MAN_ID		0xFE
+#define LM90_REG_R_CHIP_ID		0xFF
+#define LM90_REG_R_CONFIG1		0x03
+#define LM90_REG_W_CONFIG1		0x09
+#define LM90_REG_R_CONFIG2		0xBF
+#define LM90_REG_W_CONFIG2		0xBF
+#define LM90_REG_R_CONVRATE		0x04
+#define LM90_REG_W_CONVRATE		0x0A
+#define LM90_REG_R_STATUS		0x02
+#define LM90_REG_R_LOCAL_TEMP		0x00
+#define LM90_REG_R_LOCAL_HIGH		0x05
+#define LM90_REG_W_LOCAL_HIGH		0x0B
+#define LM90_REG_R_LOCAL_LOW		0x06
+#define LM90_REG_W_LOCAL_LOW		0x0C
+#define LM90_REG_R_LOCAL_CRIT		0x20
+#define LM90_REG_W_LOCAL_CRIT		0x20
+#define LM90_REG_R_REMOTE_TEMPH		0x01
+#define LM90_REG_R_REMOTE_TEMPL		0x10
+#define LM90_REG_R_REMOTE_OFFSH		0x11
+#define LM90_REG_W_REMOTE_OFFSH		0x11
+#define LM90_REG_R_REMOTE_OFFSL		0x12
+#define LM90_REG_W_REMOTE_OFFSL		0x12
+#define LM90_REG_R_REMOTE_HIGHH		0x07
+#define LM90_REG_W_REMOTE_HIGHH		0x0D
+#define LM90_REG_R_REMOTE_HIGHL		0x13
+#define LM90_REG_W_REMOTE_HIGHL		0x13
+#define LM90_REG_R_REMOTE_LOWH		0x08
+#define LM90_REG_W_REMOTE_LOWH		0x0E
+#define LM90_REG_R_REMOTE_LOWL		0x14
+#define LM90_REG_W_REMOTE_LOWL		0x14
+#define LM90_REG_R_REMOTE_CRIT		0x19
+#define LM90_REG_W_REMOTE_CRIT		0x19
+#define LM90_REG_R_TCRIT_HYST		0x21
+#define LM90_REG_W_TCRIT_HYST		0x21
+
+/* MAX6646/6647/6649/6657/6658/6659 registers */
+
+#define MAX6657_REG_R_LOCAL_TEMPL	0x11
+
+/*
+ * Device flags
+ */
+#define LM90_FLAG_ADT7461_EXT		0x01	/* ADT7461 extended mode */
+
+/*
+ * Functions declaration
+ */
+
+static int lm90_detect(struct i2c_client *client, int kind,
+		       struct i2c_board_info *info);
+static int lm90_probe(struct i2c_client *client,
+		      const struct i2c_device_id *id);
+static void lm90_init_client(struct i2c_client *client);
+static int lm90_remove(struct i2c_client *client);
+static struct lm90_data *lm90_update_device(struct device *dev);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static const struct i2c_device_id lm90_id[] = {
+	{ "adm1032", adm1032 },
+	{ "adt7461", adt7461 },
+	{ "lm90", lm90 },
+	{ "lm86", lm86 },
+	{ "lm89", lm86 },
+	{ "lm99", lm99 },
+	{ "max6646", max6646 },
+	{ "max6647", max6646 },
+	{ "max6649", max6646 },
+	{ "max6657", max6657 },
+	{ "max6658", max6657 },
+	{ "max6659", max6657 },
+	{ "max6680", max6680 },
+	{ "max6681", max6680 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, lm90_id);
+
+static struct i2c_driver lm90_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "lm90",
+	},
+	.probe		= lm90_probe,
+	.remove		= lm90_remove,
+	.id_table	= lm90_id,
+	.detect		= lm90_detect,
+	.address_data	= &addr_data,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct lm90_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	char valid; /* zero until following fields are valid */
+	unsigned long last_updated; /* in jiffies */
+	int kind;
+	int flags;
+
+	/* registers values */
+	s8 temp8[4];	/* 0: local low limit
+			   1: local high limit
+			   2: local critical limit
+			   3: remote critical limit */
+	s16 temp11[5];	/* 0: remote input
+			   1: remote low limit
+			   2: remote high limit
+			   3: remote offset (except max6646 and max6657)
+			   4: local input */
+	u8 temp_hyst;
+	u8 alarms; /* bitvector */
+};
+
+/*
+ * Conversions
+ * For local temperatures and limits, critical limits and the hysteresis
+ * value, the LM90 uses signed 8-bit values with LSB = 1 degree Celsius.
+ * For remote temperatures and limits, it uses signed 11-bit values with
+ * LSB = 0.125 degree Celsius, left-justified in 16-bit registers.  Some
+ * Maxim chips use unsigned values.
+ */
+
+static inline int temp_from_s8(s8 val)
+{
+	return val * 1000;
+}
+
+static inline int temp_from_u8(u8 val)
+{
+	return val * 1000;
+}
+
+static inline int temp_from_s16(s16 val)
+{
+	return val / 32 * 125;
+}
+
+static inline int temp_from_u16(u16 val)
+{
+	return val / 32 * 125;
+}
+
+static s8 temp_to_s8(long val)
+{
+	if (val <= -128000)
+		return -128;
+	if (val >= 127000)
+		return 127;
+	if (val < 0)
+		return (val - 500) / 1000;
+	return (val + 500) / 1000;
+}
+
+static u8 temp_to_u8(long val)
+{
+	if (val <= 0)
+		return 0;
+	if (val >= 255000)
+		return 255;
+	return (val + 500) / 1000;
+}
+
+static s16 temp_to_s16(long val)
+{
+	if (val <= -128000)
+		return 0x8000;
+	if (val >= 127875)
+		return 0x7FE0;
+	if (val < 0)
+		return (val - 62) / 125 * 32;
+	return (val + 62) / 125 * 32;
+}
+
+static u8 hyst_to_reg(long val)
+{
+	if (val <= 0)
+		return 0;
+	if (val >= 30500)
+		return 31;
+	return (val + 500) / 1000;
+}
+
+/*
+ * ADT7461 in compatibility mode is almost identical to LM90 except that
+ * attempts to write values that are outside the range 0 < temp < 127 are
+ * treated as the boundary value.
+ *
+ * ADT7461 in "extended mode" operation uses unsigned integers offset by
+ * 64 (e.g., 0 -> -64 degC).  The range is restricted to -64..191 degC.
+ */
+static inline int temp_from_u8_adt7461(struct lm90_data *data, u8 val)
+{
+	if (data->flags & LM90_FLAG_ADT7461_EXT)
+		return (val - 64) * 1000;
+	else
+		return temp_from_s8(val);
+}
+
+static inline int temp_from_u16_adt7461(struct lm90_data *data, u16 val)
+{
+	if (data->flags & LM90_FLAG_ADT7461_EXT)
+		return (val - 0x4000) / 64 * 250;
+	else
+		return temp_from_s16(val);
+}
+
+static u8 temp_to_u8_adt7461(struct lm90_data *data, long val)
+{
+	if (data->flags & LM90_FLAG_ADT7461_EXT) {
+		if (val <= -64000)
+			return 0;
+		if (val >= 191000)
+			return 0xFF;
+		return (val + 500 + 64000) / 1000;
+	} else {
+		if (val <= 0)
+			return 0;
+		if (val >= 127000)
+			return 127;
+		return (val + 500) / 1000;
+	}
+}
+
+static u16 temp_to_u16_adt7461(struct lm90_data *data, long val)
+{
+	if (data->flags & LM90_FLAG_ADT7461_EXT) {
+		if (val <= -64000)
+			return 0;
+		if (val >= 191750)
+			return 0xFFC0;
+		return (val + 64000 + 125) / 250 * 64;
+	} else {
+		if (val <= 0)
+			return 0;
+		if (val >= 127750)
+			return 0x7FC0;
+		return (val + 125) / 250 * 64;
+	}
+}
+
+/*
+ * Sysfs stuff
+ */
+
+static ssize_t show_temp8(struct device *dev, struct device_attribute *devattr,
+			  char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct lm90_data *data = lm90_update_device(dev);
+	int temp;
+
+	if (data->kind == adt7461)
+		temp = temp_from_u8_adt7461(data, data->temp8[attr->index]);
+	else if (data->kind == max6646)
+		temp = temp_from_u8(data->temp8[attr->index]);
+	else
+		temp = temp_from_s8(data->temp8[attr->index]);
+
+	/* +16 degrees offset for temp2 for the LM99 */
+	if (data->kind == lm99 && attr->index == 3)
+		temp += 16000;
+
+	return sprintf(buf, "%d\n", temp);
+}
+
+static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr,
+			 const char *buf, size_t count)
+{
+	static const u8 reg[4] = {
+		LM90_REG_W_LOCAL_LOW,
+		LM90_REG_W_LOCAL_HIGH,
+		LM90_REG_W_LOCAL_CRIT,
+		LM90_REG_W_REMOTE_CRIT,
+	};
+
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm90_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+	int nr = attr->index;
+
+	/* +16 degrees offset for temp2 for the LM99 */
+	if (data->kind == lm99 && attr->index == 3)
+		val -= 16000;
+
+	mutex_lock(&data->update_lock);
+	if (data->kind == adt7461)
+		data->temp8[nr] = temp_to_u8_adt7461(data, val);
+	else if (data->kind == max6646)
+		data->temp8[nr] = temp_to_u8(val);
+	else
+		data->temp8[nr] = temp_to_s8(val);
+	i2c_smbus_write_byte_data(client, reg[nr], data->temp8[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_temp11(struct device *dev, struct device_attribute *devattr,
+			   char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct lm90_data *data = lm90_update_device(dev);
+	int temp;
+
+	if (data->kind == adt7461)
+		temp = temp_from_u16_adt7461(data, data->temp11[attr->index]);
+	else if (data->kind == max6646)
+		temp = temp_from_u16(data->temp11[attr->index]);
+	else
+		temp = temp_from_s16(data->temp11[attr->index]);
+
+	/* +16 degrees offset for temp2 for the LM99 */
+	if (data->kind == lm99 &&  attr->index <= 2)
+		temp += 16000;
+
+	return sprintf(buf, "%d\n", temp);
+}
+
+static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr,
+			  const char *buf, size_t count)
+{
+	static const u8 reg[6] = {
+		LM90_REG_W_REMOTE_LOWH,
+		LM90_REG_W_REMOTE_LOWL,
+		LM90_REG_W_REMOTE_HIGHH,
+		LM90_REG_W_REMOTE_HIGHL,
+		LM90_REG_W_REMOTE_OFFSH,
+		LM90_REG_W_REMOTE_OFFSL,
+	};
+
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm90_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+	int nr = attr->index;
+
+	/* +16 degrees offset for temp2 for the LM99 */
+	if (data->kind == lm99 && attr->index <= 2)
+		val -= 16000;
+
+	mutex_lock(&data->update_lock);
+	if (data->kind == adt7461)
+		data->temp11[nr] = temp_to_u16_adt7461(data, val);
+	else if (data->kind == max6657 || data->kind == max6680)
+		data->temp11[nr] = temp_to_s8(val) << 8;
+	else if (data->kind == max6646)
+		data->temp11[nr] = temp_to_u8(val) << 8;
+	else
+		data->temp11[nr] = temp_to_s16(val);
+
+	i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2],
+				  data->temp11[nr] >> 8);
+	if (data->kind != max6657 && data->kind != max6680
+	    && data->kind != max6646)
+		i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2 + 1],
+					  data->temp11[nr] & 0xff);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_temphyst(struct device *dev, struct device_attribute *devattr,
+			     char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct lm90_data *data = lm90_update_device(dev);
+	int temp;
+
+	if (data->kind == adt7461)
+		temp = temp_from_u8_adt7461(data, data->temp8[attr->index]);
+	else if (data->kind == max6646)
+		temp = temp_from_u8(data->temp8[attr->index]);
+	else
+		temp = temp_from_s8(data->temp8[attr->index]);
+
+	/* +16 degrees offset for temp2 for the LM99 */
+	if (data->kind == lm99 && attr->index == 3)
+		temp += 16000;
+
+	return sprintf(buf, "%d\n", temp - temp_from_s8(data->temp_hyst));
+}
+
+static ssize_t set_temphyst(struct device *dev, struct device_attribute *dummy,
+			    const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm90_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+	int temp;
+
+	mutex_lock(&data->update_lock);
+	if (data->kind == adt7461)
+		temp = temp_from_u8_adt7461(data, data->temp8[2]);
+	else if (data->kind == max6646)
+		temp = temp_from_u8(data->temp8[2]);
+	else
+		temp = temp_from_s8(data->temp8[2]);
+
+	data->temp_hyst = hyst_to_reg(temp - val);
+	i2c_smbus_write_byte_data(client, LM90_REG_W_TCRIT_HYST,
+				  data->temp_hyst);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_alarms(struct device *dev, struct device_attribute *dummy,
+			   char *buf)
+{
+	struct lm90_data *data = lm90_update_device(dev);
+	return sprintf(buf, "%d\n", data->alarms);
+}
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute
+			  *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct lm90_data *data = lm90_update_device(dev);
+	int bitnr = attr->index;
+
+	return sprintf(buf, "%d\n", (data->alarms >> bitnr) & 1);
+}
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp11, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp11, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp8,
+	set_temp8, 0);
+static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp11,
+	set_temp11, 1);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp8,
+	set_temp8, 1);
+static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp11,
+	set_temp11, 2);
+static SENSOR_DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp8,
+	set_temp8, 2);
+static SENSOR_DEVICE_ATTR(temp2_crit, S_IWUSR | S_IRUGO, show_temp8,
+	set_temp8, 3);
+static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temphyst,
+	set_temphyst, 2);
+static SENSOR_DEVICE_ATTR(temp2_crit_hyst, S_IRUGO, show_temphyst, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp2_offset, S_IWUSR | S_IRUGO, show_temp11,
+	set_temp11, 3);
+
+/* Individual alarm files */
+static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6);
+/* Raw alarm file for compatibility */
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+static struct attribute *lm90_attributes[] = {
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_temp2_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_crit.dev_attr.attr,
+	&sensor_dev_attr_temp2_crit.dev_attr.attr,
+	&sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp2_crit_hyst.dev_attr.attr,
+
+	&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_crit_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_fault.dev_attr.attr,
+	&sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
+	&dev_attr_alarms.attr,
+	NULL
+};
+
+static const struct attribute_group lm90_group = {
+	.attrs = lm90_attributes,
+};
+
+/* pec used for ADM1032 only */
+static ssize_t show_pec(struct device *dev, struct device_attribute *dummy,
+			char *buf)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	return sprintf(buf, "%d\n", !!(client->flags & I2C_CLIENT_PEC));
+}
+
+static ssize_t set_pec(struct device *dev, struct device_attribute *dummy,
+		       const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	long val = simple_strtol(buf, NULL, 10);
+
+	switch (val) {
+	case 0:
+		client->flags &= ~I2C_CLIENT_PEC;
+		break;
+	case 1:
+		client->flags |= I2C_CLIENT_PEC;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return count;
+}
+
+static DEVICE_ATTR(pec, S_IWUSR | S_IRUGO, show_pec, set_pec);
+
+/*
+ * Real code
+ */
+
+/* The ADM1032 supports PEC but not on write byte transactions, so we need
+   to explicitly ask for a transaction without PEC. */
+static inline s32 adm1032_write_byte(struct i2c_client *client, u8 value)
+{
+	return i2c_smbus_xfer(client->adapter, client->addr,
+			      client->flags & ~I2C_CLIENT_PEC,
+			      I2C_SMBUS_WRITE, value, I2C_SMBUS_BYTE, NULL);
+}
+
+/* It is assumed that client->update_lock is held (unless we are in
+   detection or initialization steps). This matters when PEC is enabled,
+   because we don't want the address pointer to change between the write
+   byte and the read byte transactions. */
+static int lm90_read_reg(struct i2c_client* client, u8 reg, u8 *value)
+{
+	int err;
+
+ 	if (client->flags & I2C_CLIENT_PEC) {
+ 		err = adm1032_write_byte(client, reg);
+ 		if (err >= 0)
+ 			err = i2c_smbus_read_byte(client);
+ 	} else
+ 		err = i2c_smbus_read_byte_data(client, reg);
+
+	if (err < 0) {
+		dev_warn(&client->dev, "Register %#02x read failed (%d)\n",
+			 reg, err);
+		return err;
+	}
+	*value = err;
+
+	return 0;
+}
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int lm90_detect(struct i2c_client *new_client, int kind,
+		       struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = new_client->adapter;
+	int address = new_client->addr;
+	const char *name = "";
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	/*
+	 * Now we do the remaining detection. A negative kind means that
+	 * the driver was loaded with no force parameter (default), so we
+	 * must both detect and identify the chip. A zero kind means that
+	 * the driver was loaded with the force parameter, the detection
+	 * step shall be skipped. A positive kind means that the driver
+	 * was loaded with the force parameter and a given kind of chip is
+	 * requested, so both the detection and the identification steps
+	 * are skipped.
+	 */
+
+	/* Default to an LM90 if forced */
+	if (kind == 0)
+		kind = lm90;
+
+	if (kind < 0) { /* detection and identification */
+		int man_id, chip_id, reg_config1, reg_convrate;
+
+		if ((man_id = i2c_smbus_read_byte_data(new_client,
+						LM90_REG_R_MAN_ID)) < 0
+		 || (chip_id = i2c_smbus_read_byte_data(new_client,
+						LM90_REG_R_CHIP_ID)) < 0
+		 || (reg_config1 = i2c_smbus_read_byte_data(new_client,
+						LM90_REG_R_CONFIG1)) < 0
+		 || (reg_convrate = i2c_smbus_read_byte_data(new_client,
+						LM90_REG_R_CONVRATE)) < 0)
+			return -ENODEV;
+		
+		if ((address == 0x4C || address == 0x4D)
+		 && man_id == 0x01) { /* National Semiconductor */
+			int reg_config2;
+
+			if ((reg_config2 = i2c_smbus_read_byte_data(new_client,
+						LM90_REG_R_CONFIG2)) < 0)
+				return -ENODEV;
+
+			if ((reg_config1 & 0x2A) == 0x00
+			 && (reg_config2 & 0xF8) == 0x00
+			 && reg_convrate <= 0x09) {
+				if (address == 0x4C
+				 && (chip_id & 0xF0) == 0x20) { /* LM90 */
+					kind = lm90;
+				} else
+				if ((chip_id & 0xF0) == 0x30) { /* LM89/LM99 */
+					kind = lm99;
+					dev_info(&adapter->dev,
+						 "Assuming LM99 chip at "
+						 "0x%02x\n", address);
+					dev_info(&adapter->dev,
+						 "If it is an LM89, pass "
+						 "force_lm86=%d,0x%02x when "
+						 "loading the lm90 driver\n",
+						 i2c_adapter_id(adapter),
+						 address);
+				} else
+				if (address == 0x4C
+				 && (chip_id & 0xF0) == 0x10) { /* LM86 */
+					kind = lm86;
+				}
+			}
+		} else
+		if ((address == 0x4C || address == 0x4D)
+		 && man_id == 0x41) { /* Analog Devices */
+			if ((chip_id & 0xF0) == 0x40 /* ADM1032 */
+			 && (reg_config1 & 0x3F) == 0x00
+			 && reg_convrate <= 0x0A) {
+				kind = adm1032;
+			} else
+			if (chip_id == 0x51 /* ADT7461 */
+			 && (reg_config1 & 0x1B) == 0x00
+			 && reg_convrate <= 0x0A) {
+				kind = adt7461;
+			}
+		} else
+		if (man_id == 0x4D) { /* Maxim */
+			/*
+			 * The MAX6657, MAX6658 and MAX6659 do NOT have a
+			 * chip_id register. Reading from that address will
+			 * return the last read value, which in our case is
+			 * those of the man_id register. Likewise, the config1
+			 * register seems to lack a low nibble, so the value
+			 * will be those of the previous read, so in our case
+			 * those of the man_id register.
+			 */
+			if (chip_id == man_id
+			 && (address == 0x4C || address == 0x4D)
+			 && (reg_config1 & 0x1F) == (man_id & 0x0F)
+			 && reg_convrate <= 0x09) {
+			 	kind = max6657;
+			} else
+			/* The chip_id register of the MAX6680 and MAX6681
+			 * holds the revision of the chip.
+			 * the lowest bit of the config1 register is unused
+			 * and should return zero when read, so should the
+			 * second to last bit of config1 (software reset)
+			 */
+			if (chip_id == 0x01
+			 && (reg_config1 & 0x03) == 0x00
+			 && reg_convrate <= 0x07) {
+			 	kind = max6680;
+			} else
+			/* The chip_id register of the MAX6646/6647/6649
+			 * holds the revision of the chip.
+			 * The lowest 6 bits of the config1 register are
+			 * unused and should return zero when read.
+			 */
+			if (chip_id == 0x59
+			 && (reg_config1 & 0x3f) == 0x00
+			 && reg_convrate <= 0x07) {
+				kind = max6646;
+			}
+		}
+
+		if (kind <= 0) { /* identification failed */
+			dev_dbg(&adapter->dev,
+				"Unsupported chip at 0x%02x (man_id=0x%02X, "
+				"chip_id=0x%02X)\n", address, man_id, chip_id);
+			return -ENODEV;
+		}
+	}
+
+	/* Fill the i2c board info */
+	if (kind == lm90) {
+		name = "lm90";
+	} else if (kind == adm1032) {
+		name = "adm1032";
+		/* The ADM1032 supports PEC, but only if combined
+		   transactions are not used. */
+		if (i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE))
+			info->flags |= I2C_CLIENT_PEC;
+	} else if (kind == lm99) {
+		name = "lm99";
+	} else if (kind == lm86) {
+		name = "lm86";
+	} else if (kind == max6657) {
+		name = "max6657";
+	} else if (kind == max6680) {
+		name = "max6680";
+	} else if (kind == adt7461) {
+		name = "adt7461";
+	} else if (kind == max6646) {
+		name = "max6646";
+	}
+	strlcpy(info->type, name, I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int lm90_probe(struct i2c_client *new_client,
+		      const struct i2c_device_id *id)
+{
+	struct i2c_adapter *adapter = to_i2c_adapter(new_client->dev.parent);
+	struct lm90_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct lm90_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+	i2c_set_clientdata(new_client, data);
+	mutex_init(&data->update_lock);
+
+	/* Set the device type */
+	data->kind = id->driver_data;
+	if (data->kind == adm1032) {
+		if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE))
+			new_client->flags &= ~I2C_CLIENT_PEC;
+	}
+
+	/* Initialize the LM90 chip */
+	lm90_init_client(new_client);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&new_client->dev.kobj, &lm90_group)))
+		goto exit_free;
+	if (new_client->flags & I2C_CLIENT_PEC) {
+		if ((err = device_create_file(&new_client->dev,
+					      &dev_attr_pec)))
+			goto exit_remove_files;
+	}
+	if (data->kind != max6657 && data->kind != max6646) {
+		if ((err = device_create_file(&new_client->dev,
+				&sensor_dev_attr_temp2_offset.dev_attr)))
+			goto exit_remove_files;
+	}
+
+	data->hwmon_dev = hwmon_device_register(&new_client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove_files;
+	}
+
+	return 0;
+
+exit_remove_files:
+	sysfs_remove_group(&new_client->dev.kobj, &lm90_group);
+	device_remove_file(&new_client->dev, &dev_attr_pec);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+static void lm90_init_client(struct i2c_client *client)
+{
+	u8 config, config_orig;
+	struct lm90_data *data = i2c_get_clientdata(client);
+
+	/*
+	 * Start the conversions.
+	 */
+	i2c_smbus_write_byte_data(client, LM90_REG_W_CONVRATE,
+				  5); /* 2 Hz */
+	if (lm90_read_reg(client, LM90_REG_R_CONFIG1, &config) < 0) {
+		dev_warn(&client->dev, "Initialization failed!\n");
+		return;
+	}
+	config_orig = config;
+
+	/* Check Temperature Range Select */
+	if (data->kind == adt7461) {
+		if (config & 0x04)
+			data->flags |= LM90_FLAG_ADT7461_EXT;
+	}
+
+	/*
+	 * Put MAX6680/MAX8881 into extended resolution (bit 0x10,
+	 * 0.125 degree resolution) and range (0x08, extend range
+	 * to -64 degree) mode for the remote temperature sensor.
+	 */
+	if (data->kind == max6680) {
+		config |= 0x18;
+	}
+
+	config &= 0xBF;	/* run */
+	if (config != config_orig) /* Only write if changed */
+		i2c_smbus_write_byte_data(client, LM90_REG_W_CONFIG1, config);
+}
+
+static int lm90_remove(struct i2c_client *client)
+{
+	struct lm90_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &lm90_group);
+	device_remove_file(&client->dev, &dev_attr_pec);
+	if (data->kind != max6657 && data->kind != max6646)
+		device_remove_file(&client->dev,
+				   &sensor_dev_attr_temp2_offset.dev_attr);
+
+	kfree(data);
+	return 0;
+}
+
+static int lm90_read16(struct i2c_client *client, u8 regh, u8 regl, u16 *value)
+{
+	int err;
+	u8 oldh, newh, l;
+
+	/*
+	 * There is a trick here. We have to read two registers to have the
+	 * sensor temperature, but we have to beware a conversion could occur
+	 * inbetween the readings. The datasheet says we should either use
+	 * the one-shot conversion register, which we don't want to do
+	 * (disables hardware monitoring) or monitor the busy bit, which is
+	 * impossible (we can't read the values and monitor that bit at the
+	 * exact same time). So the solution used here is to read the high
+	 * byte once, then the low byte, then the high byte again. If the new
+	 * high byte matches the old one, then we have a valid reading. Else
+	 * we have to read the low byte again, and now we believe we have a
+	 * correct reading.
+	 */
+	if ((err = lm90_read_reg(client, regh, &oldh))
+	 || (err = lm90_read_reg(client, regl, &l))
+	 || (err = lm90_read_reg(client, regh, &newh)))
+		return err;
+	if (oldh != newh) {
+		err = lm90_read_reg(client, regl, &l);
+		if (err)
+			return err;
+	}
+	*value = (newh << 8) | l;
+
+	return 0;
+}
+
+static struct lm90_data *lm90_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm90_data *data = i2c_get_clientdata(client);
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
+		u8 h, l;
+
+		dev_dbg(&client->dev, "Updating lm90 data.\n");
+		lm90_read_reg(client, LM90_REG_R_LOCAL_LOW, &data->temp8[0]);
+		lm90_read_reg(client, LM90_REG_R_LOCAL_HIGH, &data->temp8[1]);
+		lm90_read_reg(client, LM90_REG_R_LOCAL_CRIT, &data->temp8[2]);
+		lm90_read_reg(client, LM90_REG_R_REMOTE_CRIT, &data->temp8[3]);
+		lm90_read_reg(client, LM90_REG_R_TCRIT_HYST, &data->temp_hyst);
+
+		if (data->kind == max6657 || data->kind == max6646) {
+			lm90_read16(client, LM90_REG_R_LOCAL_TEMP,
+				    MAX6657_REG_R_LOCAL_TEMPL,
+				    &data->temp11[4]);
+		} else {
+			if (lm90_read_reg(client, LM90_REG_R_LOCAL_TEMP,
+					  &h) == 0)
+				data->temp11[4] = h << 8;
+		}
+		lm90_read16(client, LM90_REG_R_REMOTE_TEMPH,
+			    LM90_REG_R_REMOTE_TEMPL, &data->temp11[0]);
+
+		if (lm90_read_reg(client, LM90_REG_R_REMOTE_LOWH, &h) == 0) {
+			data->temp11[1] = h << 8;
+			if (data->kind != max6657 && data->kind != max6680
+			 && data->kind != max6646
+			 && lm90_read_reg(client, LM90_REG_R_REMOTE_LOWL,
+					  &l) == 0)
+				data->temp11[1] |= l;
+		}
+		if (lm90_read_reg(client, LM90_REG_R_REMOTE_HIGHH, &h) == 0) {
+			data->temp11[2] = h << 8;
+			if (data->kind != max6657 && data->kind != max6680
+			 && data->kind != max6646
+			 && lm90_read_reg(client, LM90_REG_R_REMOTE_HIGHL,
+					  &l) == 0)
+				data->temp11[2] |= l;
+		}
+
+		if (data->kind != max6657 && data->kind != max6646) {
+			if (lm90_read_reg(client, LM90_REG_R_REMOTE_OFFSH,
+					  &h) == 0
+			 && lm90_read_reg(client, LM90_REG_R_REMOTE_OFFSL,
+					  &l) == 0)
+				data->temp11[3] = (h << 8) | l;
+		}
+		lm90_read_reg(client, LM90_REG_R_STATUS, &data->alarms);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init sensors_lm90_init(void)
+{
+	return i2c_add_driver(&lm90_driver);
+}
+
+static void __exit sensors_lm90_exit(void)
+{
+	i2c_del_driver(&lm90_driver);
+}
+
+MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
+MODULE_DESCRIPTION("LM90/ADM1032 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_lm90_init);
+module_exit(sensors_lm90_exit);
diff --git a/drivers/hwmon/lm92.c b/drivers/hwmon/lm92.c
new file mode 100644
index 0000000..b2e00c5
--- /dev/null
+++ b/drivers/hwmon/lm92.c
@@ -0,0 +1,446 @@
+/*
+ * lm92 - Hardware monitoring driver
+ * Copyright (C) 2005-2008  Jean Delvare <khali@linux-fr.org>
+ *
+ * Based on the lm90 driver, with some ideas taken from the lm_sensors
+ * lm92 driver as well.
+ *
+ * The LM92 is a sensor chip made by National Semiconductor. It reports
+ * its own temperature with a 0.0625 deg resolution and a 0.33 deg
+ * accuracy. Complete datasheet can be obtained from National's website
+ * at:
+ *   http://www.national.com/pf/LM/LM92.html
+ *
+ * This driver also supports the MAX6635 sensor chip made by Maxim.
+ * This chip is compatible with the LM92, but has a lesser accuracy
+ * (1.0 deg). Complete datasheet can be obtained from Maxim's website
+ * at:
+ *   http://www.maxim-ic.com/quick_view2.cfm/qv_pk/3074
+ *
+ * Since the LM92 was the first chipset supported by this driver, most
+ * comments will refer to this chipset, but are actually general and
+ * concern all supported chipsets, unless mentioned otherwise.
+ *
+ * Support could easily be added for the National Semiconductor LM76
+ * and Maxim MAX6633 and MAX6634 chips, which are mostly compatible
+ * with the LM92.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+/* The LM92 and MAX6635 have 2 two-state pins for address selection,
+   resulting in 4 possible addresses. */
+static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b,
+						I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_1(lm92);
+
+/* The LM92 registers */
+#define LM92_REG_CONFIG			0x01 /* 8-bit, RW */
+#define LM92_REG_TEMP			0x00 /* 16-bit, RO */
+#define LM92_REG_TEMP_HYST		0x02 /* 16-bit, RW */
+#define LM92_REG_TEMP_CRIT		0x03 /* 16-bit, RW */
+#define LM92_REG_TEMP_LOW		0x04 /* 16-bit, RW */
+#define LM92_REG_TEMP_HIGH		0x05 /* 16-bit, RW */
+#define LM92_REG_MAN_ID			0x07 /* 16-bit, RO, LM92 only */
+
+/* The LM92 uses signed 13-bit values with LSB = 0.0625 degree Celsius,
+   left-justified in 16-bit registers. No rounding is done, with such
+   a resolution it's just not worth it. Note that the MAX6635 doesn't
+   make use of the 4 lower bits for limits (i.e. effective resolution
+   for limits is 1 degree Celsius). */
+static inline int TEMP_FROM_REG(s16 reg)
+{
+	return reg / 8 * 625 / 10;
+}
+
+static inline s16 TEMP_TO_REG(int val)
+{
+	if (val <= -60000)
+		return -60000 * 10 / 625 * 8;
+	if (val >= 160000)
+		return 160000 * 10 / 625 * 8;
+	return val * 10 / 625 * 8;
+}
+
+/* Alarm flags are stored in the 3 LSB of the temperature register */
+static inline u8 ALARMS_FROM_REG(s16 reg)
+{
+	return reg & 0x0007;
+}
+
+/* Driver data (common to all clients) */
+static struct i2c_driver lm92_driver;
+
+/* Client data (each client gets its own) */
+struct lm92_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	char valid; /* zero until following fields are valid */
+	unsigned long last_updated; /* in jiffies */
+
+	/* registers values */
+	s16 temp1_input, temp1_crit, temp1_min, temp1_max, temp1_hyst;
+};
+
+
+/*
+ * Sysfs attributes and callback functions
+ */
+
+static struct lm92_data *lm92_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm92_data *data = i2c_get_clientdata(client);
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ)
+	 || !data->valid) {
+		dev_dbg(&client->dev, "Updating lm92 data\n");
+		data->temp1_input = swab16(i2c_smbus_read_word_data(client,
+				    LM92_REG_TEMP));
+		data->temp1_hyst = swab16(i2c_smbus_read_word_data(client,
+				    LM92_REG_TEMP_HYST));
+		data->temp1_crit = swab16(i2c_smbus_read_word_data(client,
+				    LM92_REG_TEMP_CRIT));
+		data->temp1_min = swab16(i2c_smbus_read_word_data(client,
+				    LM92_REG_TEMP_LOW));
+		data->temp1_max = swab16(i2c_smbus_read_word_data(client,
+				    LM92_REG_TEMP_HIGH));
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+#define show_temp(value) \
+static ssize_t show_##value(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+	struct lm92_data *data = lm92_update_device(dev); \
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->value)); \
+}
+show_temp(temp1_input);
+show_temp(temp1_crit);
+show_temp(temp1_min);
+show_temp(temp1_max);
+
+#define set_temp(value, reg) \
+static ssize_t set_##value(struct device *dev, struct device_attribute *attr, const char *buf, \
+	size_t count) \
+{ \
+	struct i2c_client *client = to_i2c_client(dev); \
+	struct lm92_data *data = i2c_get_clientdata(client); \
+	long val = simple_strtol(buf, NULL, 10); \
+ \
+	mutex_lock(&data->update_lock); \
+	data->value = TEMP_TO_REG(val); \
+	i2c_smbus_write_word_data(client, reg, swab16(data->value)); \
+	mutex_unlock(&data->update_lock); \
+	return count; \
+}
+set_temp(temp1_crit, LM92_REG_TEMP_CRIT);
+set_temp(temp1_min, LM92_REG_TEMP_LOW);
+set_temp(temp1_max, LM92_REG_TEMP_HIGH);
+
+static ssize_t show_temp1_crit_hyst(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct lm92_data *data = lm92_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp1_crit)
+		       - TEMP_FROM_REG(data->temp1_hyst));
+}
+static ssize_t show_temp1_max_hyst(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct lm92_data *data = lm92_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp1_max)
+		       - TEMP_FROM_REG(data->temp1_hyst));
+}
+static ssize_t show_temp1_min_hyst(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct lm92_data *data = lm92_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp1_min)
+		       + TEMP_FROM_REG(data->temp1_hyst));
+}
+
+static ssize_t set_temp1_crit_hyst(struct device *dev, struct device_attribute *attr, const char *buf,
+	size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm92_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp1_hyst = TEMP_FROM_REG(data->temp1_crit) - val;
+	i2c_smbus_write_word_data(client, LM92_REG_TEMP_HYST,
+				  swab16(TEMP_TO_REG(data->temp1_hyst)));
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct lm92_data *data = lm92_update_device(dev);
+	return sprintf(buf, "%d\n", ALARMS_FROM_REG(data->temp1_input));
+}
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	struct lm92_data *data = lm92_update_device(dev);
+	return sprintf(buf, "%d\n", (data->temp1_input >> bitnr) & 1);
+}
+
+static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp1_input, NULL);
+static DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp1_crit,
+	set_temp1_crit);
+static DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temp1_crit_hyst,
+	set_temp1_crit_hyst);
+static DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp1_min,
+	set_temp1_min);
+static DEVICE_ATTR(temp1_min_hyst, S_IRUGO, show_temp1_min_hyst, NULL);
+static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp1_max,
+	set_temp1_max);
+static DEVICE_ATTR(temp1_max_hyst, S_IRUGO, show_temp1_max_hyst, NULL);
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 1);
+
+
+/*
+ * Detection and registration
+ */
+
+static void lm92_init_client(struct i2c_client *client)
+{
+	u8 config;
+
+	/* Start the conversions if needed */
+	config = i2c_smbus_read_byte_data(client, LM92_REG_CONFIG);
+	if (config & 0x01)
+		i2c_smbus_write_byte_data(client, LM92_REG_CONFIG,
+					  config & 0xFE);
+}
+
+/* The MAX6635 has no identification register, so we have to use tricks
+   to identify it reliably. This is somewhat slow.
+   Note that we do NOT rely on the 2 MSB of the configuration register
+   always reading 0, as suggested by the datasheet, because it was once
+   reported not to be true. */
+static int max6635_check(struct i2c_client *client)
+{
+	u16 temp_low, temp_high, temp_hyst, temp_crit;
+	u8 conf;
+	int i;
+
+	/* No manufacturer ID register, so a read from this address will
+	   always return the last read value. */
+	temp_low = i2c_smbus_read_word_data(client, LM92_REG_TEMP_LOW);
+	if (i2c_smbus_read_word_data(client, LM92_REG_MAN_ID) != temp_low)
+		return 0;
+	temp_high = i2c_smbus_read_word_data(client, LM92_REG_TEMP_HIGH);
+	if (i2c_smbus_read_word_data(client, LM92_REG_MAN_ID) != temp_high)
+		return 0;
+	
+	/* Limits are stored as integer values (signed, 9-bit). */
+	if ((temp_low & 0x7f00) || (temp_high & 0x7f00))
+		return 0;
+	temp_hyst = i2c_smbus_read_word_data(client, LM92_REG_TEMP_HYST);
+	temp_crit = i2c_smbus_read_word_data(client, LM92_REG_TEMP_CRIT);
+	if ((temp_hyst & 0x7f00) || (temp_crit & 0x7f00))
+		return 0;
+
+	/* Registers addresses were found to cycle over 16-byte boundaries.
+	   We don't test all registers with all offsets so as to save some
+	   reads and time, but this should still be sufficient to dismiss
+	   non-MAX6635 chips. */
+	conf = i2c_smbus_read_byte_data(client, LM92_REG_CONFIG);
+	for (i=16; i<96; i*=2) {
+		if (temp_hyst != i2c_smbus_read_word_data(client,
+		 		 LM92_REG_TEMP_HYST + i - 16)
+		 || temp_crit != i2c_smbus_read_word_data(client,
+		 		 LM92_REG_TEMP_CRIT + i)
+		 || temp_low != i2c_smbus_read_word_data(client,
+				LM92_REG_TEMP_LOW + i + 16)
+		 || temp_high != i2c_smbus_read_word_data(client,
+		 		 LM92_REG_TEMP_HIGH + i + 32)
+		 || conf != i2c_smbus_read_byte_data(client,
+		 	    LM92_REG_CONFIG + i))
+			return 0;
+	}
+
+	return 1;
+}
+
+static struct attribute *lm92_attributes[] = {
+	&dev_attr_temp1_input.attr,
+	&dev_attr_temp1_crit.attr,
+	&dev_attr_temp1_crit_hyst.attr,
+	&dev_attr_temp1_min.attr,
+	&dev_attr_temp1_min_hyst.attr,
+	&dev_attr_temp1_max.attr,
+	&dev_attr_temp1_max_hyst.attr,
+	&dev_attr_alarms.attr,
+	&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group lm92_group = {
+	.attrs = lm92_attributes,
+};
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int lm92_detect(struct i2c_client *new_client, int kind,
+		       struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = new_client->adapter;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA
+					    | I2C_FUNC_SMBUS_WORD_DATA))
+		return -ENODEV;
+
+	/* A negative kind means that the driver was loaded with no force
+	   parameter (default), so we must identify the chip. */
+	if (kind < 0) {
+		u8 config = i2c_smbus_read_byte_data(new_client,
+			     LM92_REG_CONFIG);
+		u16 man_id = i2c_smbus_read_word_data(new_client,
+			     LM92_REG_MAN_ID);
+
+		if ((config & 0xe0) == 0x00
+		 && man_id == 0x0180) {
+			pr_info("lm92: Found National Semiconductor LM92 chip\n");
+	 		kind = lm92;
+		} else
+		if (max6635_check(new_client)) {
+			pr_info("lm92: Found Maxim MAX6635 chip\n");
+			kind = lm92; /* No separate prefix */
+		}
+		else
+			return -ENODEV;
+	}
+
+	strlcpy(info->type, "lm92", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int lm92_probe(struct i2c_client *new_client,
+		      const struct i2c_device_id *id)
+{
+	struct lm92_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct lm92_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(new_client, data);
+	data->valid = 0;
+	mutex_init(&data->update_lock);
+
+	/* Initialize the chipset */
+	lm92_init_client(new_client);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&new_client->dev.kobj, &lm92_group)))
+		goto exit_free;
+
+	data->hwmon_dev = hwmon_device_register(&new_client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	return 0;
+
+exit_remove:
+	sysfs_remove_group(&new_client->dev.kobj, &lm92_group);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+static int lm92_remove(struct i2c_client *client)
+{
+	struct lm92_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &lm92_group);
+
+	kfree(data);
+	return 0;
+}
+
+
+/*
+ * Module and driver stuff
+ */
+
+static const struct i2c_device_id lm92_id[] = {
+	{ "lm92", lm92 },
+	/* max6635 could be added here */
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, lm92_id);
+
+static struct i2c_driver lm92_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "lm92",
+	},
+	.probe		= lm92_probe,
+	.remove		= lm92_remove,
+	.id_table	= lm92_id,
+	.detect		= lm92_detect,
+	.address_data	= &addr_data,
+};
+
+static int __init sensors_lm92_init(void)
+{
+	return i2c_add_driver(&lm92_driver);
+}
+
+static void __exit sensors_lm92_exit(void)
+{
+	i2c_del_driver(&lm92_driver);
+}
+
+MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
+MODULE_DESCRIPTION("LM92/MAX6635 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_lm92_init);
+module_exit(sensors_lm92_exit);
diff --git a/drivers/hwmon/lm93.c b/drivers/hwmon/lm93.c
new file mode 100644
index 0000000..fc36cad
--- /dev/null
+++ b/drivers/hwmon/lm93.c
@@ -0,0 +1,2649 @@
+/*
+    lm93.c - Part of lm_sensors, Linux kernel modules for hardware monitoring
+
+    Author/Maintainer: Mark M. Hoffman <mhoffman@lightlink.com>
+	Copyright (c) 2004 Utilitek Systems, Inc.
+
+    derived in part from lm78.c:
+	Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl>
+
+    derived in part from lm85.c:
+	Copyright (c) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com>
+	Copyright (c) 2003       Margit Schubert-While <margitsw@t-online.de>
+
+    derived in part from w83l785ts.c:
+	Copyright (c) 2003-2004 Jean Delvare <khali@linux-fr.org>
+
+    Ported to Linux 2.6 by Eric J. Bowersox <ericb@aspsys.com>
+	Copyright (c) 2005 Aspen Systems, Inc.
+
+    Adapted to 2.6.20 by Carsten Emde <cbe@osadl.org>
+        Copyright (c) 2006 Carsten Emde, Open Source Automation Development Lab
+
+    Modified for mainline integration by Hans J. Koch <hjk@linutronix.de>
+        Copyright (c) 2007 Hans J. Koch, Linutronix GmbH
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon-vid.h>
+#include <linux/err.h>
+#include <linux/delay.h>
+
+/* LM93 REGISTER ADDRESSES */
+
+/* miscellaneous */
+#define LM93_REG_MFR_ID			0x3e
+#define LM93_REG_VER			0x3f
+#define LM93_REG_STATUS_CONTROL		0xe2
+#define LM93_REG_CONFIG			0xe3
+#define LM93_REG_SLEEP_CONTROL		0xe4
+
+/* alarm values start here */
+#define LM93_REG_HOST_ERROR_1		0x48
+
+/* voltage inputs: in1-in16 (nr => 0-15) */
+#define LM93_REG_IN(nr)			(0x56 + (nr))
+#define LM93_REG_IN_MIN(nr)		(0x90 + (nr) * 2)
+#define LM93_REG_IN_MAX(nr)		(0x91 + (nr) * 2)
+
+/* temperature inputs: temp1-temp4 (nr => 0-3) */
+#define LM93_REG_TEMP(nr)		(0x50 + (nr))
+#define LM93_REG_TEMP_MIN(nr)		(0x78 + (nr) * 2)
+#define LM93_REG_TEMP_MAX(nr)		(0x79 + (nr) * 2)
+
+/* temp[1-4]_auto_boost (nr => 0-3) */
+#define LM93_REG_BOOST(nr)		(0x80 + (nr))
+
+/* #PROCHOT inputs: prochot1-prochot2 (nr => 0-1) */
+#define LM93_REG_PROCHOT_CUR(nr)	(0x67 + (nr) * 2)
+#define LM93_REG_PROCHOT_AVG(nr)	(0x68 + (nr) * 2)
+#define LM93_REG_PROCHOT_MAX(nr)	(0xb0 + (nr))
+
+/* fan tach inputs: fan1-fan4 (nr => 0-3) */
+#define LM93_REG_FAN(nr)		(0x6e + (nr) * 2)
+#define LM93_REG_FAN_MIN(nr)		(0xb4 + (nr) * 2)
+
+/* pwm outputs: pwm1-pwm2 (nr => 0-1, reg => 0-3) */
+#define LM93_REG_PWM_CTL(nr,reg)	(0xc8 + (reg) + (nr) * 4)
+#define LM93_PWM_CTL1	0x0
+#define LM93_PWM_CTL2	0x1
+#define LM93_PWM_CTL3	0x2
+#define LM93_PWM_CTL4	0x3
+
+/* GPIO input state */
+#define LM93_REG_GPI			0x6b
+
+/* vid inputs: vid1-vid2 (nr => 0-1) */
+#define LM93_REG_VID(nr)		(0x6c + (nr))
+
+/* vccp1 & vccp2: VID relative inputs (nr => 0-1) */
+#define LM93_REG_VCCP_LIMIT_OFF(nr)	(0xb2 + (nr))
+
+/* temp[1-4]_auto_boost_hyst */
+#define LM93_REG_BOOST_HYST_12		0xc0
+#define LM93_REG_BOOST_HYST_34		0xc1
+#define LM93_REG_BOOST_HYST(nr)		(0xc0 + (nr)/2)
+
+/* temp[1-4]_auto_pwm_[min|hyst] */
+#define LM93_REG_PWM_MIN_HYST_12	0xc3
+#define LM93_REG_PWM_MIN_HYST_34	0xc4
+#define LM93_REG_PWM_MIN_HYST(nr)	(0xc3 + (nr)/2)
+
+/* prochot_override & prochot_interval */
+#define LM93_REG_PROCHOT_OVERRIDE	0xc6
+#define LM93_REG_PROCHOT_INTERVAL	0xc7
+
+/* temp[1-4]_auto_base (nr => 0-3) */
+#define LM93_REG_TEMP_BASE(nr)		(0xd0 + (nr))
+
+/* temp[1-4]_auto_offsets (step => 0-11) */
+#define LM93_REG_TEMP_OFFSET(step)	(0xd4 + (step))
+
+/* #PROCHOT & #VRDHOT PWM ramp control */
+#define LM93_REG_PWM_RAMP_CTL		0xbf
+
+/* miscellaneous */
+#define LM93_REG_SFC1		0xbc
+#define LM93_REG_SFC2		0xbd
+#define LM93_REG_GPI_VID_CTL	0xbe
+#define LM93_REG_SF_TACH_TO_PWM	0xe0
+
+/* error masks */
+#define LM93_REG_GPI_ERR_MASK	0xec
+#define LM93_REG_MISC_ERR_MASK	0xed
+
+/* LM93 REGISTER VALUES */
+#define LM93_MFR_ID		0x73
+#define LM93_MFR_ID_PROTOTYPE	0x72
+
+/* SMBus capabilities */
+#define LM93_SMBUS_FUNC_FULL (I2C_FUNC_SMBUS_BYTE_DATA | \
+		I2C_FUNC_SMBUS_WORD_DATA | I2C_FUNC_SMBUS_BLOCK_DATA)
+#define LM93_SMBUS_FUNC_MIN  (I2C_FUNC_SMBUS_BYTE_DATA | \
+		I2C_FUNC_SMBUS_WORD_DATA)
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_1(lm93);
+
+static int disable_block;
+module_param(disable_block, bool, 0);
+MODULE_PARM_DESC(disable_block,
+	"Set to non-zero to disable SMBus block data transactions.");
+
+static int init;
+module_param(init, bool, 0);
+MODULE_PARM_DESC(init, "Set to non-zero to force chip initialization.");
+
+static int vccp_limit_type[2] = {0,0};
+module_param_array(vccp_limit_type, int, NULL, 0);
+MODULE_PARM_DESC(vccp_limit_type, "Configures in7 and in8 limit modes.");
+
+static int vid_agtl;
+module_param(vid_agtl, int, 0);
+MODULE_PARM_DESC(vid_agtl, "Configures VID pin input thresholds.");
+
+/* Driver data */
+static struct i2c_driver lm93_driver;
+
+/* LM93 BLOCK READ COMMANDS */
+static const struct { u8 cmd; u8 len; } lm93_block_read_cmds[12] = {
+	{ 0xf2,  8 },
+	{ 0xf3,  8 },
+	{ 0xf4,  6 },
+	{ 0xf5, 16 },
+	{ 0xf6,  4 },
+	{ 0xf7,  8 },
+	{ 0xf8, 12 },
+	{ 0xf9, 32 },
+	{ 0xfa,  8 },
+	{ 0xfb,  8 },
+	{ 0xfc, 16 },
+	{ 0xfd,  9 },
+};
+
+/* ALARMS: SYSCTL format described further below
+   REG: 64 bits in 8 registers, as immediately below */
+struct block1_t {
+	u8 host_status_1;
+	u8 host_status_2;
+	u8 host_status_3;
+	u8 host_status_4;
+	u8 p1_prochot_status;
+	u8 p2_prochot_status;
+	u8 gpi_status;
+	u8 fan_status;
+};
+
+/*
+ * Client-specific data
+ */
+struct lm93_data {
+	struct device *hwmon_dev;
+
+	struct mutex update_lock;
+	unsigned long last_updated;	/* In jiffies */
+
+	/* client update function */
+	void (*update)(struct lm93_data *, struct i2c_client *);
+
+	char valid; /* !=0 if following fields are valid */
+
+	/* register values, arranged by block read groups */
+	struct block1_t block1;
+
+	/* temp1 - temp4: unfiltered readings
+	   temp1 - temp2: filtered readings */
+	u8 block2[6];
+
+	/* vin1 - vin16: readings */
+	u8 block3[16];
+
+	/* prochot1 - prochot2: readings */
+	struct {
+		u8 cur;
+		u8 avg;
+	} block4[2];
+
+	/* fan counts 1-4 => 14-bits, LE, *left* justified */
+	u16 block5[4];
+
+	/* block6 has a lot of data we don't need */
+	struct {
+		u8 min;
+		u8 max;
+	} temp_lim[4];
+
+	/* vin1 - vin16: low and high limits */
+	struct {
+		u8 min;
+		u8 max;
+	} block7[16];
+
+	/* fan count limits 1-4 => same format as block5 */
+	u16 block8[4];
+
+	/* pwm control registers (2 pwms, 4 regs) */
+	u8 block9[2][4];
+
+	/* auto/pwm base temp and offset temp registers */
+	struct {
+		u8 base[4];
+		u8 offset[12];
+	} block10;
+
+	/* master config register */
+	u8 config;
+
+	/* VID1 & VID2 => register format, 6-bits, right justified */
+	u8 vid[2];
+
+	/* prochot1 - prochot2: limits */
+	u8 prochot_max[2];
+
+	/* vccp1 & vccp2 (in7 & in8): VID relative limits (register format) */
+	u8 vccp_limits[2];
+
+	/* GPIO input state (register format, i.e. inverted) */
+	u8 gpi;
+
+	/* #PROCHOT override (register format) */
+	u8 prochot_override;
+
+	/* #PROCHOT intervals (register format) */
+	u8 prochot_interval;
+
+	/* Fan Boost Temperatures (register format) */
+	u8 boost[4];
+
+	/* Fan Boost Hysteresis (register format) */
+	u8 boost_hyst[2];
+
+	/* Temperature Zone Min. PWM & Hysteresis (register format) */
+	u8 auto_pwm_min_hyst[2];
+
+	/* #PROCHOT & #VRDHOT PWM Ramp Control */
+	u8 pwm_ramp_ctl;
+
+	/* miscellaneous setup regs */
+	u8 sfc1;
+	u8 sfc2;
+	u8 sf_tach_to_pwm;
+
+	/* The two PWM CTL2  registers can read something other than what was
+	   last written for the OVR_DC field (duty cycle override).  So, we
+	   save the user-commanded value here. */
+	u8 pwm_override[2];
+};
+
+/* VID:	mV
+   REG: 6-bits, right justified, *always* using Intel VRM/VRD 10 */
+static int LM93_VID_FROM_REG(u8 reg)
+{
+	return vid_from_reg((reg & 0x3f), 100);
+}
+
+/* min, max, and nominal register values, per channel (u8) */
+static const u8 lm93_vin_reg_min[16] = {
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xae,
+};
+static const u8 lm93_vin_reg_max[16] = {
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+	0xff, 0xfa, 0xff, 0xff, 0xff, 0xff, 0xff, 0xd1,
+};
+/* Values from the datasheet. They're here for documentation only.
+static const u8 lm93_vin_reg_nom[16] = {
+	0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0,
+	0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0x40, 0xc0,
+};
+*/
+
+/* min, max, and nominal voltage readings, per channel (mV)*/
+static const unsigned long lm93_vin_val_min[16] = {
+	0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 3000,
+};
+
+static const unsigned long lm93_vin_val_max[16] = {
+	1236, 1236, 1236, 1600, 2000, 2000, 1600, 1600,
+	4400, 6500, 3333, 2625, 1312, 1312, 1236, 3600,
+};
+/* Values from the datasheet. They're here for documentation only.
+static const unsigned long lm93_vin_val_nom[16] = {
+	 927,  927,  927, 1200, 1500, 1500, 1200, 1200,
+	3300, 5000, 2500, 1969,  984,  984,  309, 3300,
+};
+*/
+
+static unsigned LM93_IN_FROM_REG(int nr, u8 reg)
+{
+	const long uV_max = lm93_vin_val_max[nr] * 1000;
+	const long uV_min = lm93_vin_val_min[nr] * 1000;
+
+	const long slope = (uV_max - uV_min) /
+		(lm93_vin_reg_max[nr] - lm93_vin_reg_min[nr]);
+	const long intercept = uV_min - slope * lm93_vin_reg_min[nr];
+
+	return (slope * reg + intercept + 500) / 1000;
+}
+
+/* IN: mV, limits determined by channel nr
+   REG: scaling determined by channel nr */
+static u8 LM93_IN_TO_REG(int nr, unsigned val)
+{
+	/* range limit */
+	const long mV = SENSORS_LIMIT(val,
+		lm93_vin_val_min[nr], lm93_vin_val_max[nr]);
+
+	/* try not to lose too much precision here */
+	const long uV = mV * 1000;
+	const long uV_max = lm93_vin_val_max[nr] * 1000;
+	const long uV_min = lm93_vin_val_min[nr] * 1000;
+
+	/* convert */
+	const long slope = (uV_max - uV_min) /
+		(lm93_vin_reg_max[nr] - lm93_vin_reg_min[nr]);
+	const long intercept = uV_min - slope * lm93_vin_reg_min[nr];
+
+	u8 result = ((uV - intercept + (slope/2)) / slope);
+	result = SENSORS_LIMIT(result,
+			lm93_vin_reg_min[nr], lm93_vin_reg_max[nr]);
+	return result;
+}
+
+/* vid in mV, upper == 0 indicates low limit, otherwise upper limit */
+static unsigned LM93_IN_REL_FROM_REG(u8 reg, int upper, int vid)
+{
+	const long uV_offset = upper ? (((reg >> 4 & 0x0f) + 1) * 12500) :
+				(((reg >> 0 & 0x0f) + 1) * -25000);
+	const long uV_vid = vid * 1000;
+	return (uV_vid + uV_offset + 5000) / 10000;
+}
+
+#define LM93_IN_MIN_FROM_REG(reg,vid)	LM93_IN_REL_FROM_REG(reg,0,vid)
+#define LM93_IN_MAX_FROM_REG(reg,vid)	LM93_IN_REL_FROM_REG(reg,1,vid)
+
+/* vid in mV , upper == 0 indicates low limit, otherwise upper limit
+   upper also determines which nibble of the register is returned
+   (the other nibble will be 0x0) */
+static u8 LM93_IN_REL_TO_REG(unsigned val, int upper, int vid)
+{
+	long uV_offset = vid * 1000 - val * 10000;
+	if (upper) {
+		uV_offset = SENSORS_LIMIT(uV_offset, 12500, 200000);
+		return (u8)((uV_offset /  12500 - 1) << 4);
+	} else {
+		uV_offset = SENSORS_LIMIT(uV_offset, -400000, -25000);
+		return (u8)((uV_offset / -25000 - 1) << 0);
+	}
+}
+
+/* TEMP: 1/1000 degrees C (-128C to +127C)
+   REG: 1C/bit, two's complement */
+static int LM93_TEMP_FROM_REG(u8 reg)
+{
+	return (s8)reg * 1000;
+}
+
+#define LM93_TEMP_MIN (-128000)
+#define LM93_TEMP_MAX ( 127000)
+
+/* TEMP: 1/1000 degrees C (-128C to +127C)
+   REG: 1C/bit, two's complement */
+static u8 LM93_TEMP_TO_REG(long temp)
+{
+	int ntemp = SENSORS_LIMIT(temp, LM93_TEMP_MIN, LM93_TEMP_MAX);
+	ntemp += (ntemp<0 ? -500 : 500);
+	return (u8)(ntemp / 1000);
+}
+
+/* Determine 4-bit temperature offset resolution */
+static int LM93_TEMP_OFFSET_MODE_FROM_REG(u8 sfc2, int nr)
+{
+	/* mode: 0 => 1C/bit, nonzero => 0.5C/bit */
+	return sfc2 & (nr < 2 ? 0x10 : 0x20);
+}
+
+/* This function is common to all 4-bit temperature offsets
+   reg is 4 bits right justified
+   mode 0 => 1C/bit, mode !0 => 0.5C/bit */
+static int LM93_TEMP_OFFSET_FROM_REG(u8 reg, int mode)
+{
+	return (reg & 0x0f) * (mode ? 5 : 10);
+}
+
+#define LM93_TEMP_OFFSET_MIN  (  0)
+#define LM93_TEMP_OFFSET_MAX0 (150)
+#define LM93_TEMP_OFFSET_MAX1 ( 75)
+
+/* This function is common to all 4-bit temperature offsets
+   returns 4 bits right justified
+   mode 0 => 1C/bit, mode !0 => 0.5C/bit */
+static u8 LM93_TEMP_OFFSET_TO_REG(int off, int mode)
+{
+	int factor = mode ? 5 : 10;
+
+	off = SENSORS_LIMIT(off, LM93_TEMP_OFFSET_MIN,
+		mode ? LM93_TEMP_OFFSET_MAX1 : LM93_TEMP_OFFSET_MAX0);
+	return (u8)((off + factor/2) / factor);
+}
+
+/* 0 <= nr <= 3 */
+static int LM93_TEMP_AUTO_OFFSET_FROM_REG(u8 reg, int nr, int mode)
+{
+	/* temp1-temp2 (nr=0,1) use lower nibble */
+	if (nr < 2)
+		return LM93_TEMP_OFFSET_FROM_REG(reg & 0x0f, mode);
+
+	/* temp3-temp4 (nr=2,3) use upper nibble */
+	else
+		return LM93_TEMP_OFFSET_FROM_REG(reg >> 4 & 0x0f, mode);
+}
+
+/* TEMP: 1/10 degrees C (0C to +15C (mode 0) or +7.5C (mode non-zero))
+   REG: 1.0C/bit (mode 0) or 0.5C/bit (mode non-zero)
+   0 <= nr <= 3 */
+static u8 LM93_TEMP_AUTO_OFFSET_TO_REG(u8 old, int off, int nr, int mode)
+{
+	u8 new = LM93_TEMP_OFFSET_TO_REG(off, mode);
+
+	/* temp1-temp2 (nr=0,1) use lower nibble */
+	if (nr < 2)
+		return (old & 0xf0) | (new & 0x0f);
+
+	/* temp3-temp4 (nr=2,3) use upper nibble */
+	else
+		return (new << 4 & 0xf0) | (old & 0x0f);
+}
+
+static int LM93_AUTO_BOOST_HYST_FROM_REGS(struct lm93_data *data, int nr,
+		int mode)
+{
+	u8 reg;
+
+	switch (nr) {
+	case 0:
+		reg = data->boost_hyst[0] & 0x0f;
+		break;
+	case 1:
+		reg = data->boost_hyst[0] >> 4 & 0x0f;
+		break;
+	case 2:
+		reg = data->boost_hyst[1] & 0x0f;
+		break;
+	case 3:
+	default:
+		reg = data->boost_hyst[1] >> 4 & 0x0f;
+		break;
+	}
+
+	return LM93_TEMP_FROM_REG(data->boost[nr]) -
+			LM93_TEMP_OFFSET_FROM_REG(reg, mode);
+}
+
+static u8 LM93_AUTO_BOOST_HYST_TO_REG(struct lm93_data *data, long hyst,
+		int nr, int mode)
+{
+	u8 reg = LM93_TEMP_OFFSET_TO_REG(
+			(LM93_TEMP_FROM_REG(data->boost[nr]) - hyst), mode);
+
+	switch (nr) {
+	case 0:
+		reg = (data->boost_hyst[0] & 0xf0) | (reg & 0x0f);
+		break;
+	case 1:
+		reg = (reg << 4 & 0xf0) | (data->boost_hyst[0] & 0x0f);
+		break;
+	case 2:
+		reg = (data->boost_hyst[1] & 0xf0) | (reg & 0x0f);
+		break;
+	case 3:
+	default:
+		reg = (reg << 4 & 0xf0) | (data->boost_hyst[1] & 0x0f);
+		break;
+	}
+
+	return reg;
+}
+
+/* PWM: 0-255 per sensors documentation
+   REG: 0-13 as mapped below... right justified */
+typedef enum { LM93_PWM_MAP_HI_FREQ, LM93_PWM_MAP_LO_FREQ } pwm_freq_t;
+static int lm93_pwm_map[2][16] = {
+	{
+		0x00, /*   0.00% */ 0x40, /*  25.00% */
+		0x50, /*  31.25% */ 0x60, /*  37.50% */
+		0x70, /*  43.75% */ 0x80, /*  50.00% */
+		0x90, /*  56.25% */ 0xa0, /*  62.50% */
+		0xb0, /*  68.75% */ 0xc0, /*  75.00% */
+		0xd0, /*  81.25% */ 0xe0, /*  87.50% */
+		0xf0, /*  93.75% */ 0xff, /* 100.00% */
+		0xff, 0xff, /* 14, 15 are reserved and should never occur */
+	},
+	{
+		0x00, /*   0.00% */ 0x40, /*  25.00% */
+		0x49, /*  28.57% */ 0x52, /*  32.14% */
+		0x5b, /*  35.71% */ 0x64, /*  39.29% */
+		0x6d, /*  42.86% */ 0x76, /*  46.43% */
+		0x80, /*  50.00% */ 0x89, /*  53.57% */
+		0x92, /*  57.14% */ 0xb6, /*  71.43% */
+		0xdb, /*  85.71% */ 0xff, /* 100.00% */
+		0xff, 0xff, /* 14, 15 are reserved and should never occur */
+	},
+};
+
+static int LM93_PWM_FROM_REG(u8 reg, pwm_freq_t freq)
+{
+	return lm93_pwm_map[freq][reg & 0x0f];
+}
+
+/* round up to nearest match */
+static u8 LM93_PWM_TO_REG(int pwm, pwm_freq_t freq)
+{
+	int i;
+	for (i = 0; i < 13; i++)
+		if (pwm <= lm93_pwm_map[freq][i])
+			break;
+
+	/* can fall through with i==13 */
+	return (u8)i;
+}
+
+static int LM93_FAN_FROM_REG(u16 regs)
+{
+	const u16 count = le16_to_cpu(regs) >> 2;
+	return count==0 ? -1 : count==0x3fff ? 0: 1350000 / count;
+}
+
+/*
+ * RPM: (82.5 to 1350000)
+ * REG: 14-bits, LE, *left* justified
+ */
+static u16 LM93_FAN_TO_REG(long rpm)
+{
+	u16 count, regs;
+
+	if (rpm == 0) {
+		count = 0x3fff;
+	} else {
+		rpm = SENSORS_LIMIT(rpm, 1, 1000000);
+		count = SENSORS_LIMIT((1350000 + rpm) / rpm, 1, 0x3ffe);
+	}
+
+	regs = count << 2;
+	return cpu_to_le16(regs);
+}
+
+/* PWM FREQ: HZ
+   REG: 0-7 as mapped below */
+static int lm93_pwm_freq_map[8] = {
+	22500, 96, 84, 72, 60, 48, 36, 12
+};
+
+static int LM93_PWM_FREQ_FROM_REG(u8 reg)
+{
+	return lm93_pwm_freq_map[reg & 0x07];
+}
+
+/* round up to nearest match */
+static u8 LM93_PWM_FREQ_TO_REG(int freq)
+{
+	int i;
+	for (i = 7; i > 0; i--)
+		if (freq <= lm93_pwm_freq_map[i])
+			break;
+
+	/* can fall through with i==0 */
+	return (u8)i;
+}
+
+/* TIME: 1/100 seconds
+ * REG: 0-7 as mapped below */
+static int lm93_spinup_time_map[8] = {
+	0, 10, 25, 40, 70, 100, 200, 400,
+};
+
+static int LM93_SPINUP_TIME_FROM_REG(u8 reg)
+{
+	return lm93_spinup_time_map[reg >> 5 & 0x07];
+}
+
+/* round up to nearest match */
+static u8 LM93_SPINUP_TIME_TO_REG(int time)
+{
+	int i;
+	for (i = 0; i < 7; i++)
+		if (time <= lm93_spinup_time_map[i])
+			break;
+
+	/* can fall through with i==8 */
+	return (u8)i;
+}
+
+#define LM93_RAMP_MIN 0
+#define LM93_RAMP_MAX 75
+
+static int LM93_RAMP_FROM_REG(u8 reg)
+{
+	return (reg & 0x0f) * 5;
+}
+
+/* RAMP: 1/100 seconds
+   REG: 50mS/bit 4-bits right justified */
+static u8 LM93_RAMP_TO_REG(int ramp)
+{
+	ramp = SENSORS_LIMIT(ramp, LM93_RAMP_MIN, LM93_RAMP_MAX);
+	return (u8)((ramp + 2) / 5);
+}
+
+/* PROCHOT: 0-255, 0 => 0%, 255 => > 96.6%
+ * REG: (same) */
+static u8 LM93_PROCHOT_TO_REG(long prochot)
+{
+	prochot = SENSORS_LIMIT(prochot, 0, 255);
+	return (u8)prochot;
+}
+
+/* PROCHOT-INTERVAL: 73 - 37200 (1/100 seconds)
+ * REG: 0-9 as mapped below */
+static int lm93_interval_map[10] = {
+	73, 146, 290, 580, 1170, 2330, 4660, 9320, 18600, 37200,
+};
+
+static int LM93_INTERVAL_FROM_REG(u8 reg)
+{
+	return lm93_interval_map[reg & 0x0f];
+}
+
+/* round up to nearest match */
+static u8 LM93_INTERVAL_TO_REG(long interval)
+{
+	int i;
+	for (i = 0; i < 9; i++)
+		if (interval <= lm93_interval_map[i])
+			break;
+
+	/* can fall through with i==9 */
+	return (u8)i;
+}
+
+/* GPIO: 0-255, GPIO0 is LSB
+ * REG: inverted */
+static unsigned LM93_GPI_FROM_REG(u8 reg)
+{
+	return ~reg & 0xff;
+}
+
+/* alarm bitmask definitions
+   The LM93 has nearly 64 bits of error status... I've pared that down to
+   what I think is a useful subset in order to fit it into 32 bits.
+
+   Especially note that the #VRD_HOT alarms are missing because we provide
+   that information as values in another sysfs file.
+
+   If libsensors is extended to support 64 bit values, this could be revisited.
+*/
+#define LM93_ALARM_IN1		0x00000001
+#define LM93_ALARM_IN2		0x00000002
+#define LM93_ALARM_IN3		0x00000004
+#define LM93_ALARM_IN4		0x00000008
+#define LM93_ALARM_IN5		0x00000010
+#define LM93_ALARM_IN6		0x00000020
+#define LM93_ALARM_IN7		0x00000040
+#define LM93_ALARM_IN8		0x00000080
+#define LM93_ALARM_IN9		0x00000100
+#define LM93_ALARM_IN10		0x00000200
+#define LM93_ALARM_IN11		0x00000400
+#define LM93_ALARM_IN12		0x00000800
+#define LM93_ALARM_IN13		0x00001000
+#define LM93_ALARM_IN14		0x00002000
+#define LM93_ALARM_IN15		0x00004000
+#define LM93_ALARM_IN16		0x00008000
+#define LM93_ALARM_FAN1		0x00010000
+#define LM93_ALARM_FAN2		0x00020000
+#define LM93_ALARM_FAN3		0x00040000
+#define LM93_ALARM_FAN4		0x00080000
+#define LM93_ALARM_PH1_ERR	0x00100000
+#define LM93_ALARM_PH2_ERR	0x00200000
+#define LM93_ALARM_SCSI1_ERR	0x00400000
+#define LM93_ALARM_SCSI2_ERR	0x00800000
+#define LM93_ALARM_DVDDP1_ERR	0x01000000
+#define LM93_ALARM_DVDDP2_ERR	0x02000000
+#define LM93_ALARM_D1_ERR	0x04000000
+#define LM93_ALARM_D2_ERR	0x08000000
+#define LM93_ALARM_TEMP1	0x10000000
+#define LM93_ALARM_TEMP2	0x20000000
+#define LM93_ALARM_TEMP3	0x40000000
+
+static unsigned LM93_ALARMS_FROM_REG(struct block1_t b1)
+{
+	unsigned result;
+	result  = b1.host_status_2 & 0x3f;
+
+	if (vccp_limit_type[0])
+		result |= (b1.host_status_4 & 0x10) << 2;
+	else
+		result |= b1.host_status_2 & 0x40;
+
+	if (vccp_limit_type[1])
+		result |= (b1.host_status_4 & 0x20) << 2;
+	else
+		result |= b1.host_status_2 & 0x80;
+
+	result |= b1.host_status_3 << 8;
+	result |= (b1.fan_status & 0x0f) << 16;
+	result |= (b1.p1_prochot_status & 0x80) << 13;
+	result |= (b1.p2_prochot_status & 0x80) << 14;
+	result |= (b1.host_status_4 & 0xfc) << 20;
+	result |= (b1.host_status_1 & 0x07) << 28;
+	return result;
+}
+
+#define MAX_RETRIES 5
+
+static u8 lm93_read_byte(struct i2c_client *client, u8 reg)
+{
+	int value, i;
+
+	/* retry in case of read errors */
+	for (i=1; i<=MAX_RETRIES; i++) {
+		if ((value = i2c_smbus_read_byte_data(client, reg)) >= 0) {
+			return value;
+		} else {
+			dev_warn(&client->dev,"lm93: read byte data failed, "
+				"address 0x%02x.\n", reg);
+			mdelay(i + 3);
+		}
+
+	}
+
+	/* <TODO> what to return in case of error? */
+	dev_err(&client->dev,"lm93: All read byte retries failed!!\n");
+	return 0;
+}
+
+static int lm93_write_byte(struct i2c_client *client, u8 reg, u8 value)
+{
+	int result;
+
+	/* <TODO> how to handle write errors? */
+	result = i2c_smbus_write_byte_data(client, reg, value);
+
+	if (result < 0)
+		dev_warn(&client->dev,"lm93: write byte data failed, "
+			 "0x%02x at address 0x%02x.\n", value, reg);
+
+	return result;
+}
+
+static u16 lm93_read_word(struct i2c_client *client, u8 reg)
+{
+	int value, i;
+
+	/* retry in case of read errors */
+	for (i=1; i<=MAX_RETRIES; i++) {
+		if ((value = i2c_smbus_read_word_data(client, reg)) >= 0) {
+			return value;
+		} else {
+			dev_warn(&client->dev,"lm93: read word data failed, "
+				 "address 0x%02x.\n", reg);
+			mdelay(i + 3);
+		}
+
+	}
+
+	/* <TODO> what to return in case of error? */
+	dev_err(&client->dev,"lm93: All read word retries failed!!\n");
+	return 0;
+}
+
+static int lm93_write_word(struct i2c_client *client, u8 reg, u16 value)
+{
+	int result;
+
+	/* <TODO> how to handle write errors? */
+	result = i2c_smbus_write_word_data(client, reg, value);
+
+	if (result < 0)
+		dev_warn(&client->dev,"lm93: write word data failed, "
+			 "0x%04x at address 0x%02x.\n", value, reg);
+
+	return result;
+}
+
+static u8 lm93_block_buffer[I2C_SMBUS_BLOCK_MAX];
+
+/*
+	read block data into values, retry if not expected length
+	fbn => index to lm93_block_read_cmds table
+		(Fixed Block Number - section 14.5.2 of LM93 datasheet)
+*/
+static void lm93_read_block(struct i2c_client *client, u8 fbn, u8 *values)
+{
+	int i, result=0;
+
+	for (i = 1; i <= MAX_RETRIES; i++) {
+		result = i2c_smbus_read_block_data(client,
+			lm93_block_read_cmds[fbn].cmd, lm93_block_buffer);
+
+		if (result == lm93_block_read_cmds[fbn].len) {
+			break;
+		} else {
+			dev_warn(&client->dev,"lm93: block read data failed, "
+				 "command 0x%02x.\n",
+				 lm93_block_read_cmds[fbn].cmd);
+			mdelay(i + 3);
+		}
+	}
+
+	if (result == lm93_block_read_cmds[fbn].len) {
+		memcpy(values,lm93_block_buffer,lm93_block_read_cmds[fbn].len);
+	} else {
+		/* <TODO> what to do in case of error? */
+	}
+}
+
+static struct lm93_data *lm93_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	const unsigned long interval = HZ + (HZ / 2);
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + interval) ||
+		!data->valid) {
+
+		data->update(data, client);
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+	return data;
+}
+
+/* update routine for data that has no corresponding SMBus block command */
+static void lm93_update_client_common(struct lm93_data *data,
+				      struct i2c_client *client)
+{
+	int i;
+	u8 *ptr;
+
+	/* temp1 - temp4: limits */
+	for (i = 0; i < 4; i++) {
+		data->temp_lim[i].min =
+			lm93_read_byte(client, LM93_REG_TEMP_MIN(i));
+		data->temp_lim[i].max =
+			lm93_read_byte(client, LM93_REG_TEMP_MAX(i));
+	}
+
+	/* config register */
+	data->config = lm93_read_byte(client, LM93_REG_CONFIG);
+
+	/* vid1 - vid2: values */
+	for (i = 0; i < 2; i++)
+		data->vid[i] = lm93_read_byte(client, LM93_REG_VID(i));
+
+	/* prochot1 - prochot2: limits */
+	for (i = 0; i < 2; i++)
+		data->prochot_max[i] = lm93_read_byte(client,
+				LM93_REG_PROCHOT_MAX(i));
+
+	/* vccp1 - vccp2: VID relative limits */
+	for (i = 0; i < 2; i++)
+		data->vccp_limits[i] = lm93_read_byte(client,
+				LM93_REG_VCCP_LIMIT_OFF(i));
+
+	/* GPIO input state */
+	data->gpi = lm93_read_byte(client, LM93_REG_GPI);
+
+	/* #PROCHOT override state */
+	data->prochot_override = lm93_read_byte(client,
+			LM93_REG_PROCHOT_OVERRIDE);
+
+	/* #PROCHOT intervals */
+	data->prochot_interval = lm93_read_byte(client,
+			LM93_REG_PROCHOT_INTERVAL);
+
+	/* Fan Boost Termperature registers */
+	for (i = 0; i < 4; i++)
+		data->boost[i] = lm93_read_byte(client, LM93_REG_BOOST(i));
+
+	/* Fan Boost Temperature Hyst. registers */
+	data->boost_hyst[0] = lm93_read_byte(client, LM93_REG_BOOST_HYST_12);
+	data->boost_hyst[1] = lm93_read_byte(client, LM93_REG_BOOST_HYST_34);
+
+	/* Temperature Zone Min. PWM & Hysteresis registers */
+	data->auto_pwm_min_hyst[0] =
+			lm93_read_byte(client, LM93_REG_PWM_MIN_HYST_12);
+	data->auto_pwm_min_hyst[1] =
+			lm93_read_byte(client, LM93_REG_PWM_MIN_HYST_34);
+
+	/* #PROCHOT & #VRDHOT PWM Ramp Control register */
+	data->pwm_ramp_ctl = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
+
+	/* misc setup registers */
+	data->sfc1 = lm93_read_byte(client, LM93_REG_SFC1);
+	data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
+	data->sf_tach_to_pwm = lm93_read_byte(client,
+			LM93_REG_SF_TACH_TO_PWM);
+
+	/* write back alarm values to clear */
+	for (i = 0, ptr = (u8 *)(&data->block1); i < 8; i++)
+		lm93_write_byte(client, LM93_REG_HOST_ERROR_1 + i, *(ptr + i));
+}
+
+/* update routine which uses SMBus block data commands */
+static void lm93_update_client_full(struct lm93_data *data,
+				    struct i2c_client *client)
+{
+	dev_dbg(&client->dev,"starting device update (block data enabled)\n");
+
+	/* in1 - in16: values & limits */
+	lm93_read_block(client, 3, (u8 *)(data->block3));
+	lm93_read_block(client, 7, (u8 *)(data->block7));
+
+	/* temp1 - temp4: values */
+	lm93_read_block(client, 2, (u8 *)(data->block2));
+
+	/* prochot1 - prochot2: values */
+	lm93_read_block(client, 4, (u8 *)(data->block4));
+
+	/* fan1 - fan4: values & limits */
+	lm93_read_block(client, 5, (u8 *)(data->block5));
+	lm93_read_block(client, 8, (u8 *)(data->block8));
+
+	/* pmw control registers */
+	lm93_read_block(client, 9, (u8 *)(data->block9));
+
+	/* alarm values */
+	lm93_read_block(client, 1, (u8 *)(&data->block1));
+
+	/* auto/pwm registers */
+	lm93_read_block(client, 10, (u8 *)(&data->block10));
+
+	lm93_update_client_common(data, client);
+}
+
+/* update routine which uses SMBus byte/word data commands only */
+static void lm93_update_client_min(struct lm93_data *data,
+				   struct i2c_client *client)
+{
+	int i,j;
+	u8 *ptr;
+
+	dev_dbg(&client->dev,"starting device update (block data disabled)\n");
+
+	/* in1 - in16: values & limits */
+	for (i = 0; i < 16; i++) {
+		data->block3[i] =
+			lm93_read_byte(client, LM93_REG_IN(i));
+		data->block7[i].min =
+			lm93_read_byte(client, LM93_REG_IN_MIN(i));
+		data->block7[i].max =
+			lm93_read_byte(client, LM93_REG_IN_MAX(i));
+	}
+
+	/* temp1 - temp4: values */
+	for (i = 0; i < 4; i++) {
+		data->block2[i] =
+			lm93_read_byte(client, LM93_REG_TEMP(i));
+	}
+
+	/* prochot1 - prochot2: values */
+	for (i = 0; i < 2; i++) {
+		data->block4[i].cur =
+			lm93_read_byte(client, LM93_REG_PROCHOT_CUR(i));
+		data->block4[i].avg =
+			lm93_read_byte(client, LM93_REG_PROCHOT_AVG(i));
+	}
+
+	/* fan1 - fan4: values & limits */
+	for (i = 0; i < 4; i++) {
+		data->block5[i] =
+			lm93_read_word(client, LM93_REG_FAN(i));
+		data->block8[i] =
+			lm93_read_word(client, LM93_REG_FAN_MIN(i));
+	}
+
+	/* pwm control registers */
+	for (i = 0; i < 2; i++) {
+		for (j = 0; j < 4; j++) {
+			data->block9[i][j] =
+				lm93_read_byte(client, LM93_REG_PWM_CTL(i,j));
+		}
+	}
+
+	/* alarm values */
+	for (i = 0, ptr = (u8 *)(&data->block1); i < 8; i++) {
+		*(ptr + i) =
+			lm93_read_byte(client, LM93_REG_HOST_ERROR_1 + i);
+	}
+
+	/* auto/pwm (base temp) registers */
+	for (i = 0; i < 4; i++) {
+		data->block10.base[i] =
+			lm93_read_byte(client, LM93_REG_TEMP_BASE(i));
+	}
+
+	/* auto/pwm (offset temp) registers */
+	for (i = 0; i < 12; i++) {
+		data->block10.offset[i] =
+			lm93_read_byte(client, LM93_REG_TEMP_OFFSET(i));
+	}
+
+	lm93_update_client_common(data, client);
+}
+
+/* following are the sysfs callback functions */
+static ssize_t show_in(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+
+	struct lm93_data *data = lm93_update_device(dev);
+	return sprintf(buf, "%d\n", LM93_IN_FROM_REG(nr, data->block3[nr]));
+}
+
+static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 0);
+static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 1);
+static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 2);
+static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 3);
+static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 4);
+static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 5);
+static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 6);
+static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 7);
+static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, show_in, NULL, 8);
+static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, show_in, NULL, 9);
+static SENSOR_DEVICE_ATTR(in11_input, S_IRUGO, show_in, NULL, 10);
+static SENSOR_DEVICE_ATTR(in12_input, S_IRUGO, show_in, NULL, 11);
+static SENSOR_DEVICE_ATTR(in13_input, S_IRUGO, show_in, NULL, 12);
+static SENSOR_DEVICE_ATTR(in14_input, S_IRUGO, show_in, NULL, 13);
+static SENSOR_DEVICE_ATTR(in15_input, S_IRUGO, show_in, NULL, 14);
+static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_in, NULL, 15);
+
+static ssize_t show_in_min(struct device *dev,
+			struct device_attribute *attr, char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	int vccp = nr - 6;
+	long rc, vid;
+
+	if ((nr==6 || nr==7) && (vccp_limit_type[vccp])) {
+		vid = LM93_VID_FROM_REG(data->vid[vccp]);
+		rc = LM93_IN_MIN_FROM_REG(data->vccp_limits[vccp], vid);
+	}
+	else {
+		rc = LM93_IN_FROM_REG(nr, data->block7[nr].min); \
+	}
+	return sprintf(buf, "%ld\n", rc); \
+}
+
+static ssize_t store_in_min(struct device *dev, struct device_attribute *attr,
+			    const char *buf, size_t count)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+	int vccp = nr - 6;
+	long vid;
+
+	mutex_lock(&data->update_lock);
+	if ((nr==6 || nr==7) && (vccp_limit_type[vccp])) {
+		vid = LM93_VID_FROM_REG(data->vid[vccp]);
+		data->vccp_limits[vccp] = (data->vccp_limits[vccp] & 0xf0) |
+				LM93_IN_REL_TO_REG(val, 0, vid);
+		lm93_write_byte(client, LM93_REG_VCCP_LIMIT_OFF(vccp),
+				data->vccp_limits[vccp]);
+	}
+	else {
+		data->block7[nr].min = LM93_IN_TO_REG(nr,val);
+		lm93_write_byte(client, LM93_REG_IN_MIN(nr),
+				data->block7[nr].min);
+	}
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
+			  show_in_min, store_in_min, 0);
+static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
+			  show_in_min, store_in_min, 1);
+static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
+			  show_in_min, store_in_min, 2);
+static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
+			  show_in_min, store_in_min, 3);
+static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
+			  show_in_min, store_in_min, 4);
+static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
+			  show_in_min, store_in_min, 5);
+static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
+			  show_in_min, store_in_min, 6);
+static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
+			  show_in_min, store_in_min, 7);
+static SENSOR_DEVICE_ATTR(in9_min, S_IWUSR | S_IRUGO,
+			  show_in_min, store_in_min, 8);
+static SENSOR_DEVICE_ATTR(in10_min, S_IWUSR | S_IRUGO,
+			  show_in_min, store_in_min, 9);
+static SENSOR_DEVICE_ATTR(in11_min, S_IWUSR | S_IRUGO,
+			  show_in_min, store_in_min, 10);
+static SENSOR_DEVICE_ATTR(in12_min, S_IWUSR | S_IRUGO,
+			  show_in_min, store_in_min, 11);
+static SENSOR_DEVICE_ATTR(in13_min, S_IWUSR | S_IRUGO,
+			  show_in_min, store_in_min, 12);
+static SENSOR_DEVICE_ATTR(in14_min, S_IWUSR | S_IRUGO,
+			  show_in_min, store_in_min, 13);
+static SENSOR_DEVICE_ATTR(in15_min, S_IWUSR | S_IRUGO,
+			  show_in_min, store_in_min, 14);
+static SENSOR_DEVICE_ATTR(in16_min, S_IWUSR | S_IRUGO,
+			  show_in_min, store_in_min, 15);
+
+static ssize_t show_in_max(struct device *dev,
+			   struct device_attribute *attr, char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	int vccp = nr - 6;
+	long rc, vid;
+
+	if ((nr==6 || nr==7) && (vccp_limit_type[vccp])) {
+		vid = LM93_VID_FROM_REG(data->vid[vccp]);
+		rc = LM93_IN_MAX_FROM_REG(data->vccp_limits[vccp],vid);
+	}
+	else {
+		rc = LM93_IN_FROM_REG(nr,data->block7[nr].max); \
+	}
+	return sprintf(buf,"%ld\n",rc); \
+}
+
+static ssize_t store_in_max(struct device *dev, struct device_attribute *attr,
+			    const char *buf, size_t count)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+	int vccp = nr - 6;
+	long vid;
+
+	mutex_lock(&data->update_lock);
+	if ((nr==6 || nr==7) && (vccp_limit_type[vccp])) {
+		vid = LM93_VID_FROM_REG(data->vid[vccp]);
+		data->vccp_limits[vccp] = (data->vccp_limits[vccp] & 0x0f) |
+				LM93_IN_REL_TO_REG(val, 1, vid);
+		lm93_write_byte(client, LM93_REG_VCCP_LIMIT_OFF(vccp),
+				data->vccp_limits[vccp]);
+	}
+	else {
+		data->block7[nr].max = LM93_IN_TO_REG(nr,val);
+		lm93_write_byte(client, LM93_REG_IN_MAX(nr),
+				data->block7[nr].max);
+	}
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
+			  show_in_max, store_in_max, 0);
+static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
+			  show_in_max, store_in_max, 1);
+static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
+			  show_in_max, store_in_max, 2);
+static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
+			  show_in_max, store_in_max, 3);
+static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
+			  show_in_max, store_in_max, 4);
+static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
+			  show_in_max, store_in_max, 5);
+static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
+			  show_in_max, store_in_max, 6);
+static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
+			  show_in_max, store_in_max, 7);
+static SENSOR_DEVICE_ATTR(in9_max, S_IWUSR | S_IRUGO,
+			  show_in_max, store_in_max, 8);
+static SENSOR_DEVICE_ATTR(in10_max, S_IWUSR | S_IRUGO,
+			  show_in_max, store_in_max, 9);
+static SENSOR_DEVICE_ATTR(in11_max, S_IWUSR | S_IRUGO,
+			  show_in_max, store_in_max, 10);
+static SENSOR_DEVICE_ATTR(in12_max, S_IWUSR | S_IRUGO,
+			  show_in_max, store_in_max, 11);
+static SENSOR_DEVICE_ATTR(in13_max, S_IWUSR | S_IRUGO,
+			  show_in_max, store_in_max, 12);
+static SENSOR_DEVICE_ATTR(in14_max, S_IWUSR | S_IRUGO,
+			  show_in_max, store_in_max, 13);
+static SENSOR_DEVICE_ATTR(in15_max, S_IWUSR | S_IRUGO,
+			  show_in_max, store_in_max, 14);
+static SENSOR_DEVICE_ATTR(in16_max, S_IWUSR | S_IRUGO,
+			  show_in_max, store_in_max, 15);
+
+static ssize_t show_temp(struct device *dev,
+			 struct device_attribute *attr, char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	return sprintf(buf,"%d\n",LM93_TEMP_FROM_REG(data->block2[nr]));
+}
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
+
+static ssize_t show_temp_min(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	return sprintf(buf,"%d\n",LM93_TEMP_FROM_REG(data->temp_lim[nr].min));
+}
+
+static ssize_t store_temp_min(struct device *dev, struct device_attribute *attr,
+			      const char *buf, size_t count)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_lim[nr].min = LM93_TEMP_TO_REG(val);
+	lm93_write_byte(client, LM93_REG_TEMP_MIN(nr), data->temp_lim[nr].min);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO,
+			  show_temp_min, store_temp_min, 0);
+static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO,
+			  show_temp_min, store_temp_min, 1);
+static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO,
+			  show_temp_min, store_temp_min, 2);
+
+static ssize_t show_temp_max(struct device *dev,
+			     struct device_attribute *attr, char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	return sprintf(buf,"%d\n",LM93_TEMP_FROM_REG(data->temp_lim[nr].max));
+}
+
+static ssize_t store_temp_max(struct device *dev, struct device_attribute *attr,
+			      const char *buf, size_t count)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_lim[nr].max = LM93_TEMP_TO_REG(val);
+	lm93_write_byte(client, LM93_REG_TEMP_MAX(nr), data->temp_lim[nr].max);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
+			  show_temp_max, store_temp_max, 0);
+static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO,
+			  show_temp_max, store_temp_max, 1);
+static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO,
+			  show_temp_max, store_temp_max, 2);
+
+static ssize_t show_temp_auto_base(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	return sprintf(buf,"%d\n",LM93_TEMP_FROM_REG(data->block10.base[nr]));
+}
+
+static ssize_t store_temp_auto_base(struct device *dev,
+					struct device_attribute *attr,
+					const char *buf, size_t count)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->block10.base[nr] = LM93_TEMP_TO_REG(val);
+	lm93_write_byte(client, LM93_REG_TEMP_BASE(nr), data->block10.base[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(temp1_auto_base, S_IWUSR | S_IRUGO,
+			  show_temp_auto_base, store_temp_auto_base, 0);
+static SENSOR_DEVICE_ATTR(temp2_auto_base, S_IWUSR | S_IRUGO,
+			  show_temp_auto_base, store_temp_auto_base, 1);
+static SENSOR_DEVICE_ATTR(temp3_auto_base, S_IWUSR | S_IRUGO,
+			  show_temp_auto_base, store_temp_auto_base, 2);
+
+static ssize_t show_temp_auto_boost(struct device *dev,
+				    struct device_attribute *attr,char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	return sprintf(buf,"%d\n",LM93_TEMP_FROM_REG(data->boost[nr]));
+}
+
+static ssize_t store_temp_auto_boost(struct device *dev,
+				     struct device_attribute *attr,
+				     const char *buf, size_t count)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->boost[nr] = LM93_TEMP_TO_REG(val);
+	lm93_write_byte(client, LM93_REG_BOOST(nr), data->boost[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(temp1_auto_boost, S_IWUSR | S_IRUGO,
+			  show_temp_auto_boost, store_temp_auto_boost, 0);
+static SENSOR_DEVICE_ATTR(temp2_auto_boost, S_IWUSR | S_IRUGO,
+			  show_temp_auto_boost, store_temp_auto_boost, 1);
+static SENSOR_DEVICE_ATTR(temp3_auto_boost, S_IWUSR | S_IRUGO,
+			  show_temp_auto_boost, store_temp_auto_boost, 2);
+
+static ssize_t show_temp_auto_boost_hyst(struct device *dev,
+					 struct device_attribute *attr,
+					 char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
+	return sprintf(buf,"%d\n",
+		       LM93_AUTO_BOOST_HYST_FROM_REGS(data, nr, mode));
+}
+
+static ssize_t store_temp_auto_boost_hyst(struct device *dev,
+					  struct device_attribute *attr,
+					  const char *buf, size_t count)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	/* force 0.5C/bit mode */
+	data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
+	data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
+	lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
+	data->boost_hyst[nr/2] = LM93_AUTO_BOOST_HYST_TO_REG(data, val, nr, 1);
+	lm93_write_byte(client, LM93_REG_BOOST_HYST(nr),
+			data->boost_hyst[nr/2]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(temp1_auto_boost_hyst, S_IWUSR | S_IRUGO,
+			  show_temp_auto_boost_hyst,
+			  store_temp_auto_boost_hyst, 0);
+static SENSOR_DEVICE_ATTR(temp2_auto_boost_hyst, S_IWUSR | S_IRUGO,
+			  show_temp_auto_boost_hyst,
+			  store_temp_auto_boost_hyst, 1);
+static SENSOR_DEVICE_ATTR(temp3_auto_boost_hyst, S_IWUSR | S_IRUGO,
+			  show_temp_auto_boost_hyst,
+			  store_temp_auto_boost_hyst, 2);
+
+static ssize_t show_temp_auto_offset(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr);
+	int nr = s_attr->index;
+	int ofs = s_attr->nr;
+	struct lm93_data *data = lm93_update_device(dev);
+	int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
+	return sprintf(buf,"%d\n",
+	       LM93_TEMP_AUTO_OFFSET_FROM_REG(data->block10.offset[ofs],
+					      nr,mode));
+}
+
+static ssize_t store_temp_auto_offset(struct device *dev,
+					struct device_attribute *attr,
+					const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr);
+	int nr = s_attr->index;
+	int ofs = s_attr->nr;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	/* force 0.5C/bit mode */
+	data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
+	data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
+	lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
+	data->block10.offset[ofs] = LM93_TEMP_AUTO_OFFSET_TO_REG(
+			data->block10.offset[ofs], val, nr, 1);
+	lm93_write_byte(client, LM93_REG_TEMP_OFFSET(ofs),
+			data->block10.offset[ofs]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR_2(temp1_auto_offset1, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 0, 0);
+static SENSOR_DEVICE_ATTR_2(temp1_auto_offset2, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 1, 0);
+static SENSOR_DEVICE_ATTR_2(temp1_auto_offset3, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 2, 0);
+static SENSOR_DEVICE_ATTR_2(temp1_auto_offset4, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 3, 0);
+static SENSOR_DEVICE_ATTR_2(temp1_auto_offset5, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 4, 0);
+static SENSOR_DEVICE_ATTR_2(temp1_auto_offset6, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 5, 0);
+static SENSOR_DEVICE_ATTR_2(temp1_auto_offset7, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 6, 0);
+static SENSOR_DEVICE_ATTR_2(temp1_auto_offset8, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 7, 0);
+static SENSOR_DEVICE_ATTR_2(temp1_auto_offset9, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 8, 0);
+static SENSOR_DEVICE_ATTR_2(temp1_auto_offset10, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 9, 0);
+static SENSOR_DEVICE_ATTR_2(temp1_auto_offset11, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 10, 0);
+static SENSOR_DEVICE_ATTR_2(temp1_auto_offset12, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 11, 0);
+static SENSOR_DEVICE_ATTR_2(temp2_auto_offset1, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 0, 1);
+static SENSOR_DEVICE_ATTR_2(temp2_auto_offset2, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 1, 1);
+static SENSOR_DEVICE_ATTR_2(temp2_auto_offset3, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 2, 1);
+static SENSOR_DEVICE_ATTR_2(temp2_auto_offset4, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 3, 1);
+static SENSOR_DEVICE_ATTR_2(temp2_auto_offset5, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 4, 1);
+static SENSOR_DEVICE_ATTR_2(temp2_auto_offset6, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 5, 1);
+static SENSOR_DEVICE_ATTR_2(temp2_auto_offset7, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 6, 1);
+static SENSOR_DEVICE_ATTR_2(temp2_auto_offset8, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 7, 1);
+static SENSOR_DEVICE_ATTR_2(temp2_auto_offset9, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 8, 1);
+static SENSOR_DEVICE_ATTR_2(temp2_auto_offset10, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 9, 1);
+static SENSOR_DEVICE_ATTR_2(temp2_auto_offset11, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 10, 1);
+static SENSOR_DEVICE_ATTR_2(temp2_auto_offset12, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 11, 1);
+static SENSOR_DEVICE_ATTR_2(temp3_auto_offset1, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 0, 2);
+static SENSOR_DEVICE_ATTR_2(temp3_auto_offset2, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 1, 2);
+static SENSOR_DEVICE_ATTR_2(temp3_auto_offset3, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 2, 2);
+static SENSOR_DEVICE_ATTR_2(temp3_auto_offset4, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 3, 2);
+static SENSOR_DEVICE_ATTR_2(temp3_auto_offset5, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 4, 2);
+static SENSOR_DEVICE_ATTR_2(temp3_auto_offset6, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 5, 2);
+static SENSOR_DEVICE_ATTR_2(temp3_auto_offset7, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 6, 2);
+static SENSOR_DEVICE_ATTR_2(temp3_auto_offset8, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 7, 2);
+static SENSOR_DEVICE_ATTR_2(temp3_auto_offset9, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 8, 2);
+static SENSOR_DEVICE_ATTR_2(temp3_auto_offset10, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 9, 2);
+static SENSOR_DEVICE_ATTR_2(temp3_auto_offset11, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 10, 2);
+static SENSOR_DEVICE_ATTR_2(temp3_auto_offset12, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset, store_temp_auto_offset, 11, 2);
+
+static ssize_t show_temp_auto_pwm_min(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	u8 reg, ctl4;
+	struct lm93_data *data = lm93_update_device(dev);
+	reg = data->auto_pwm_min_hyst[nr/2] >> 4 & 0x0f;
+	ctl4 = data->block9[nr][LM93_PWM_CTL4];
+	return sprintf(buf,"%d\n",LM93_PWM_FROM_REG(reg, (ctl4 & 0x07) ?
+				LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ));
+}
+
+static ssize_t store_temp_auto_pwm_min(struct device *dev,
+					struct device_attribute *attr,
+					const char *buf, size_t count)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+	u8 reg, ctl4;
+
+	mutex_lock(&data->update_lock);
+	reg = lm93_read_byte(client, LM93_REG_PWM_MIN_HYST(nr));
+	ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr,LM93_PWM_CTL4));
+	reg = (reg & 0x0f) |
+		LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?
+				LM93_PWM_MAP_LO_FREQ :
+				LM93_PWM_MAP_HI_FREQ) << 4;
+	data->auto_pwm_min_hyst[nr/2] = reg;
+	lm93_write_byte(client, LM93_REG_PWM_MIN_HYST(nr), reg);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(temp1_auto_pwm_min, S_IWUSR | S_IRUGO,
+			  show_temp_auto_pwm_min,
+			  store_temp_auto_pwm_min, 0);
+static SENSOR_DEVICE_ATTR(temp2_auto_pwm_min, S_IWUSR | S_IRUGO,
+			  show_temp_auto_pwm_min,
+			  store_temp_auto_pwm_min, 1);
+static SENSOR_DEVICE_ATTR(temp3_auto_pwm_min, S_IWUSR | S_IRUGO,
+			  show_temp_auto_pwm_min,
+			  store_temp_auto_pwm_min, 2);
+
+static ssize_t show_temp_auto_offset_hyst(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
+	return sprintf(buf,"%d\n",LM93_TEMP_OFFSET_FROM_REG(
+					data->auto_pwm_min_hyst[nr/2], mode));
+}
+
+static ssize_t store_temp_auto_offset_hyst(struct device *dev,
+						struct device_attribute *attr,
+						const char *buf, size_t count)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+	u8 reg;
+
+	mutex_lock(&data->update_lock);
+	/* force 0.5C/bit mode */
+	data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
+	data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
+	lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
+	reg = data->auto_pwm_min_hyst[nr/2];
+	reg = (reg & 0xf0) | (LM93_TEMP_OFFSET_TO_REG(val, 1) & 0x0f);
+	data->auto_pwm_min_hyst[nr/2] = reg;
+	lm93_write_byte(client, LM93_REG_PWM_MIN_HYST(nr), reg);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(temp1_auto_offset_hyst, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset_hyst,
+			  store_temp_auto_offset_hyst, 0);
+static SENSOR_DEVICE_ATTR(temp2_auto_offset_hyst, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset_hyst,
+			  store_temp_auto_offset_hyst, 1);
+static SENSOR_DEVICE_ATTR(temp3_auto_offset_hyst, S_IWUSR | S_IRUGO,
+			  show_temp_auto_offset_hyst,
+			  store_temp_auto_offset_hyst, 2);
+
+static ssize_t show_fan_input(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
+	int nr = s_attr->index;
+	struct lm93_data *data = lm93_update_device(dev);
+
+	return sprintf(buf,"%d\n",LM93_FAN_FROM_REG(data->block5[nr]));
+}
+
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan_input, NULL, 3);
+
+static ssize_t show_fan_min(struct device *dev,
+			      struct device_attribute *attr, char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+
+	return sprintf(buf,"%d\n",LM93_FAN_FROM_REG(data->block8[nr]));
+}
+
+static ssize_t store_fan_min(struct device *dev, struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->block8[nr] = LM93_FAN_TO_REG(val);
+	lm93_write_word(client,LM93_REG_FAN_MIN(nr),data->block8[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
+			  show_fan_min, store_fan_min, 0);
+static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
+			  show_fan_min, store_fan_min, 1);
+static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
+			  show_fan_min, store_fan_min, 2);
+static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
+			  show_fan_min, store_fan_min, 3);
+
+/* some tedious bit-twiddling here to deal with the register format:
+
+	data->sf_tach_to_pwm: (tach to pwm mapping bits)
+
+		bit |  7  |  6  |  5  |  4  |  3  |  2  |  1  |  0
+		     T4:P2 T4:P1 T3:P2 T3:P1 T2:P2 T2:P1 T1:P2 T1:P1
+
+	data->sfc2: (enable bits)
+
+		bit |  3  |  2  |  1  |  0
+		       T4    T3    T2    T1
+*/
+
+static ssize_t show_fan_smart_tach(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	long rc = 0;
+	int mapping;
+
+	/* extract the relevant mapping */
+	mapping = (data->sf_tach_to_pwm >> (nr * 2)) & 0x03;
+
+	/* if there's a mapping and it's enabled */
+	if (mapping && ((data->sfc2 >> nr) & 0x01))
+		rc = mapping;
+	return sprintf(buf,"%ld\n",rc);
+}
+
+/* helper function - must grab data->update_lock before calling
+   fan is 0-3, indicating fan1-fan4 */
+static void lm93_write_fan_smart_tach(struct i2c_client *client,
+	struct lm93_data *data, int fan, long value)
+{
+	/* insert the new mapping and write it out */
+	data->sf_tach_to_pwm = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM);
+	data->sf_tach_to_pwm &= ~(0x3 << fan * 2);
+	data->sf_tach_to_pwm |= value << fan * 2;
+	lm93_write_byte(client, LM93_REG_SF_TACH_TO_PWM, data->sf_tach_to_pwm);
+
+	/* insert the enable bit and write it out */
+	data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
+	if (value)
+		data->sfc2 |= 1 << fan;
+	else
+		data->sfc2 &= ~(1 << fan);
+	lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
+}
+
+static ssize_t store_fan_smart_tach(struct device *dev,
+					struct device_attribute *attr,
+					const char *buf, size_t count)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	/* sanity test, ignore the write otherwise */
+	if (0 <= val && val <= 2) {
+		/* can't enable if pwm freq is 22.5KHz */
+		if (val) {
+			u8 ctl4 = lm93_read_byte(client,
+				LM93_REG_PWM_CTL(val-1,LM93_PWM_CTL4));
+			if ((ctl4 & 0x07) == 0)
+				val = 0;
+		}
+		lm93_write_fan_smart_tach(client, data, nr, val);
+	}
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(fan1_smart_tach, S_IWUSR | S_IRUGO,
+			  show_fan_smart_tach, store_fan_smart_tach, 0);
+static SENSOR_DEVICE_ATTR(fan2_smart_tach, S_IWUSR | S_IRUGO,
+			  show_fan_smart_tach, store_fan_smart_tach, 1);
+static SENSOR_DEVICE_ATTR(fan3_smart_tach, S_IWUSR | S_IRUGO,
+			  show_fan_smart_tach, store_fan_smart_tach, 2);
+static SENSOR_DEVICE_ATTR(fan4_smart_tach, S_IWUSR | S_IRUGO,
+			  show_fan_smart_tach, store_fan_smart_tach, 3);
+
+static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	u8 ctl2, ctl4;
+	long rc;
+
+	ctl2 = data->block9[nr][LM93_PWM_CTL2];
+	ctl4 = data->block9[nr][LM93_PWM_CTL4];
+	if (ctl2 & 0x01) /* show user commanded value if enabled */
+		rc = data->pwm_override[nr];
+	else /* show present h/w value if manual pwm disabled */
+		rc = LM93_PWM_FROM_REG(ctl2 >> 4, (ctl4 & 0x07) ?
+			LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ);
+	return sprintf(buf,"%ld\n",rc);
+}
+
+static ssize_t store_pwm(struct device *dev, struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+	u8 ctl2, ctl4;
+
+	mutex_lock(&data->update_lock);
+	ctl2 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr,LM93_PWM_CTL2));
+	ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr,LM93_PWM_CTL4));
+	ctl2 = (ctl2 & 0x0f) | LM93_PWM_TO_REG(val,(ctl4 & 0x07) ?
+			LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ) << 4;
+	/* save user commanded value */
+	data->pwm_override[nr] = LM93_PWM_FROM_REG(ctl2 >> 4,
+			(ctl4 & 0x07) ?  LM93_PWM_MAP_LO_FREQ :
+			LM93_PWM_MAP_HI_FREQ);
+	lm93_write_byte(client,LM93_REG_PWM_CTL(nr,LM93_PWM_CTL2),ctl2);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
+static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
+
+static ssize_t show_pwm_enable(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	u8 ctl2;
+	long rc;
+
+	ctl2 = data->block9[nr][LM93_PWM_CTL2];
+	if (ctl2 & 0x01) /* manual override enabled ? */
+		rc = ((ctl2 & 0xF0) == 0xF0) ? 0 : 1;
+	else
+		rc = 2;
+	return sprintf(buf,"%ld\n",rc);
+}
+
+static ssize_t store_pwm_enable(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+	u8 ctl2;
+
+	mutex_lock(&data->update_lock);
+	ctl2 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr,LM93_PWM_CTL2));
+
+	switch (val) {
+	case 0:
+		ctl2 |= 0xF1; /* enable manual override, set PWM to max */
+		break;
+	case 1: ctl2 |= 0x01; /* enable manual override */
+		break;
+	case 2: ctl2 &= ~0x01; /* disable manual override */
+		break;
+	default:
+		mutex_unlock(&data->update_lock);
+		return -EINVAL;
+	}
+
+	lm93_write_byte(client,LM93_REG_PWM_CTL(nr,LM93_PWM_CTL2),ctl2);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
+				show_pwm_enable, store_pwm_enable, 0);
+static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
+				show_pwm_enable, store_pwm_enable, 1);
+
+static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr,
+				char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	u8 ctl4;
+
+	ctl4 = data->block9[nr][LM93_PWM_CTL4];
+	return sprintf(buf,"%d\n",LM93_PWM_FREQ_FROM_REG(ctl4));
+}
+
+/* helper function - must grab data->update_lock before calling
+   pwm is 0-1, indicating pwm1-pwm2
+   this disables smart tach for all tach channels bound to the given pwm */
+static void lm93_disable_fan_smart_tach(struct i2c_client *client,
+	struct lm93_data *data, int pwm)
+{
+	int mapping = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM);
+	int mask;
+
+	/* collapse the mapping into a mask of enable bits */
+	mapping = (mapping >> pwm) & 0x55;
+	mask = mapping & 0x01;
+	mask |= (mapping & 0x04) >> 1;
+	mask |= (mapping & 0x10) >> 2;
+	mask |= (mapping & 0x40) >> 3;
+
+	/* disable smart tach according to the mask */
+	data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
+	data->sfc2 &= ~mask;
+	lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
+}
+
+static ssize_t store_pwm_freq(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+	u8 ctl4;
+
+	mutex_lock(&data->update_lock);
+	ctl4 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr,LM93_PWM_CTL4));
+	ctl4 = (ctl4 & 0xf8) | LM93_PWM_FREQ_TO_REG(val);
+	data->block9[nr][LM93_PWM_CTL4] = ctl4;
+	/* ctl4 == 0 -> 22.5KHz -> disable smart tach */
+	if (!ctl4)
+		lm93_disable_fan_smart_tach(client, data, nr);
+	lm93_write_byte(client,	LM93_REG_PWM_CTL(nr,LM93_PWM_CTL4), ctl4);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(pwm1_freq, S_IWUSR | S_IRUGO,
+			  show_pwm_freq, store_pwm_freq, 0);
+static SENSOR_DEVICE_ATTR(pwm2_freq, S_IWUSR | S_IRUGO,
+			  show_pwm_freq, store_pwm_freq, 1);
+
+static ssize_t show_pwm_auto_channels(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	return sprintf(buf,"%d\n",data->block9[nr][LM93_PWM_CTL1]);
+}
+
+static ssize_t store_pwm_auto_channels(struct device *dev,
+					struct device_attribute *attr,
+					const char *buf, size_t count)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->block9[nr][LM93_PWM_CTL1] = SENSORS_LIMIT(val, 0, 255);
+	lm93_write_byte(client,	LM93_REG_PWM_CTL(nr,LM93_PWM_CTL1),
+				data->block9[nr][LM93_PWM_CTL1]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(pwm1_auto_channels, S_IWUSR | S_IRUGO,
+			  show_pwm_auto_channels, store_pwm_auto_channels, 0);
+static SENSOR_DEVICE_ATTR(pwm2_auto_channels, S_IWUSR | S_IRUGO,
+			  show_pwm_auto_channels, store_pwm_auto_channels, 1);
+
+static ssize_t show_pwm_auto_spinup_min(struct device *dev,
+				struct device_attribute *attr,char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	u8 ctl3, ctl4;
+
+	ctl3 = data->block9[nr][LM93_PWM_CTL3];
+	ctl4 = data->block9[nr][LM93_PWM_CTL4];
+	return sprintf(buf,"%d\n",
+		       LM93_PWM_FROM_REG(ctl3 & 0x0f, (ctl4 & 0x07) ?
+			LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ));
+}
+
+static ssize_t store_pwm_auto_spinup_min(struct device *dev,
+						struct device_attribute *attr,
+						const char *buf, size_t count)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+	u8 ctl3, ctl4;
+
+	mutex_lock(&data->update_lock);
+	ctl3 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3));
+	ctl4 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));
+	ctl3 = (ctl3 & 0xf0) | 	LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?
+			LM93_PWM_MAP_LO_FREQ :
+			LM93_PWM_MAP_HI_FREQ);
+	data->block9[nr][LM93_PWM_CTL3] = ctl3;
+	lm93_write_byte(client,LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3), ctl3);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(pwm1_auto_spinup_min, S_IWUSR | S_IRUGO,
+			  show_pwm_auto_spinup_min,
+			  store_pwm_auto_spinup_min, 0);
+static SENSOR_DEVICE_ATTR(pwm2_auto_spinup_min, S_IWUSR | S_IRUGO,
+			  show_pwm_auto_spinup_min,
+			  store_pwm_auto_spinup_min, 1);
+
+static ssize_t show_pwm_auto_spinup_time(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	return sprintf(buf,"%d\n",LM93_SPINUP_TIME_FROM_REG(
+				data->block9[nr][LM93_PWM_CTL3]));
+}
+
+static ssize_t store_pwm_auto_spinup_time(struct device *dev,
+						struct device_attribute *attr,
+						const char *buf, size_t count)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+	u8 ctl3;
+
+	mutex_lock(&data->update_lock);
+	ctl3 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3));
+	ctl3 = (ctl3 & 0x1f) | (LM93_SPINUP_TIME_TO_REG(val) << 5 & 0xe0);
+	data->block9[nr][LM93_PWM_CTL3] = ctl3;
+	lm93_write_byte(client,LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3), ctl3);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(pwm1_auto_spinup_time, S_IWUSR | S_IRUGO,
+			  show_pwm_auto_spinup_time,
+			  store_pwm_auto_spinup_time, 0);
+static SENSOR_DEVICE_ATTR(pwm2_auto_spinup_time, S_IWUSR | S_IRUGO,
+			  show_pwm_auto_spinup_time,
+			  store_pwm_auto_spinup_time, 1);
+
+static ssize_t show_pwm_auto_prochot_ramp(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct lm93_data *data = lm93_update_device(dev);
+	return sprintf(buf,"%d\n",
+		       LM93_RAMP_FROM_REG(data->pwm_ramp_ctl >> 4 & 0x0f));
+}
+
+static ssize_t store_pwm_auto_prochot_ramp(struct device *dev,
+						struct device_attribute *attr,
+						const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+	u8 ramp;
+
+	mutex_lock(&data->update_lock);
+	ramp = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
+	ramp = (ramp & 0x0f) | (LM93_RAMP_TO_REG(val) << 4 & 0xf0);
+	lm93_write_byte(client, LM93_REG_PWM_RAMP_CTL, ramp);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(pwm_auto_prochot_ramp, S_IRUGO | S_IWUSR,
+			show_pwm_auto_prochot_ramp,
+			store_pwm_auto_prochot_ramp);
+
+static ssize_t show_pwm_auto_vrdhot_ramp(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct lm93_data *data = lm93_update_device(dev);
+	return sprintf(buf,"%d\n",
+		       LM93_RAMP_FROM_REG(data->pwm_ramp_ctl & 0x0f));
+}
+
+static ssize_t store_pwm_auto_vrdhot_ramp(struct device *dev,
+						struct device_attribute *attr,
+						const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+	u8 ramp;
+
+	mutex_lock(&data->update_lock);
+	ramp = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
+	ramp = (ramp & 0xf0) | (LM93_RAMP_TO_REG(val) & 0x0f);
+	lm93_write_byte(client, LM93_REG_PWM_RAMP_CTL, ramp);
+	mutex_unlock(&data->update_lock);
+	return 0;
+}
+
+static DEVICE_ATTR(pwm_auto_vrdhot_ramp, S_IRUGO | S_IWUSR,
+			show_pwm_auto_vrdhot_ramp,
+			store_pwm_auto_vrdhot_ramp);
+
+static ssize_t show_vid(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	return sprintf(buf,"%d\n",LM93_VID_FROM_REG(data->vid[nr]));
+}
+
+static SENSOR_DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL, 0);
+static SENSOR_DEVICE_ATTR(cpu1_vid, S_IRUGO, show_vid, NULL, 1);
+
+static ssize_t show_prochot(struct device *dev, struct device_attribute *attr,
+				char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	return sprintf(buf,"%d\n",data->block4[nr].cur);
+}
+
+static SENSOR_DEVICE_ATTR(prochot1, S_IRUGO, show_prochot, NULL, 0);
+static SENSOR_DEVICE_ATTR(prochot2, S_IRUGO, show_prochot, NULL, 1);
+
+static ssize_t show_prochot_avg(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	return sprintf(buf,"%d\n",data->block4[nr].avg);
+}
+
+static SENSOR_DEVICE_ATTR(prochot1_avg, S_IRUGO, show_prochot_avg, NULL, 0);
+static SENSOR_DEVICE_ATTR(prochot2_avg, S_IRUGO, show_prochot_avg, NULL, 1);
+
+static ssize_t show_prochot_max(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	return sprintf(buf,"%d\n",data->prochot_max[nr]);
+}
+
+static ssize_t store_prochot_max(struct device *dev,
+					struct device_attribute *attr,
+					const char *buf, size_t count)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->prochot_max[nr] = LM93_PROCHOT_TO_REG(val);
+	lm93_write_byte(client, LM93_REG_PROCHOT_MAX(nr),
+			data->prochot_max[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(prochot1_max, S_IWUSR | S_IRUGO,
+			  show_prochot_max, store_prochot_max, 0);
+static SENSOR_DEVICE_ATTR(prochot2_max, S_IWUSR | S_IRUGO,
+			  show_prochot_max, store_prochot_max, 1);
+
+static const u8 prochot_override_mask[] = { 0x80, 0x40 };
+
+static ssize_t show_prochot_override(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	return sprintf(buf,"%d\n",
+		(data->prochot_override & prochot_override_mask[nr]) ? 1 : 0);
+}
+
+static ssize_t store_prochot_override(struct device *dev,
+					struct device_attribute *attr,
+					const char *buf, size_t count)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	if (val)
+		data->prochot_override |= prochot_override_mask[nr];
+	else
+		data->prochot_override &= (~prochot_override_mask[nr]);
+	lm93_write_byte(client, LM93_REG_PROCHOT_OVERRIDE,
+			data->prochot_override);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(prochot1_override, S_IWUSR | S_IRUGO,
+			  show_prochot_override, store_prochot_override, 0);
+static SENSOR_DEVICE_ATTR(prochot2_override, S_IWUSR | S_IRUGO,
+			  show_prochot_override, store_prochot_override, 1);
+
+static ssize_t show_prochot_interval(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	u8 tmp;
+	if (nr==1)
+		tmp = (data->prochot_interval & 0xf0) >> 4;
+	else
+		tmp = data->prochot_interval & 0x0f;
+	return sprintf(buf,"%d\n",LM93_INTERVAL_FROM_REG(tmp));
+}
+
+static ssize_t store_prochot_interval(struct device *dev,
+					struct device_attribute *attr,
+					const char *buf, size_t count)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+	u8 tmp;
+
+	mutex_lock(&data->update_lock);
+	tmp = lm93_read_byte(client, LM93_REG_PROCHOT_INTERVAL);
+	if (nr==1)
+		tmp = (tmp & 0x0f) | (LM93_INTERVAL_TO_REG(val) << 4);
+	else
+		tmp = (tmp & 0xf0) | LM93_INTERVAL_TO_REG(val);
+	data->prochot_interval = tmp;
+	lm93_write_byte(client, LM93_REG_PROCHOT_INTERVAL, tmp);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(prochot1_interval, S_IWUSR | S_IRUGO,
+			  show_prochot_interval, store_prochot_interval, 0);
+static SENSOR_DEVICE_ATTR(prochot2_interval, S_IWUSR | S_IRUGO,
+			  show_prochot_interval, store_prochot_interval, 1);
+
+static ssize_t show_prochot_override_duty_cycle(struct device *dev,
+						struct device_attribute *attr,
+						char *buf)
+{
+	struct lm93_data *data = lm93_update_device(dev);
+	return sprintf(buf,"%d\n",data->prochot_override & 0x0f);
+}
+
+static ssize_t store_prochot_override_duty_cycle(struct device *dev,
+						struct device_attribute *attr,
+						const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->prochot_override = (data->prochot_override & 0xf0) |
+					SENSORS_LIMIT(val, 0, 15);
+	lm93_write_byte(client, LM93_REG_PROCHOT_OVERRIDE,
+			data->prochot_override);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(prochot_override_duty_cycle, S_IRUGO | S_IWUSR,
+			show_prochot_override_duty_cycle,
+			store_prochot_override_duty_cycle);
+
+static ssize_t show_prochot_short(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct lm93_data *data = lm93_update_device(dev);
+	return sprintf(buf,"%d\n",(data->config & 0x10) ? 1 : 0);
+}
+
+static ssize_t store_prochot_short(struct device *dev,
+					struct device_attribute *attr,
+					const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct lm93_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	if (val)
+		data->config |= 0x10;
+	else
+		data->config &= ~0x10;
+	lm93_write_byte(client, LM93_REG_CONFIG, data->config);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(prochot_short, S_IRUGO | S_IWUSR,
+		   show_prochot_short, store_prochot_short);
+
+static ssize_t show_vrdhot(struct device *dev, struct device_attribute *attr,
+				char *buf)
+{
+	int nr = (to_sensor_dev_attr(attr))->index;
+	struct lm93_data *data = lm93_update_device(dev);
+	return sprintf(buf,"%d\n",
+		       data->block1.host_status_1 & (1 << (nr+4)) ? 1 : 0);
+}
+
+static SENSOR_DEVICE_ATTR(vrdhot1, S_IRUGO, show_vrdhot, NULL, 0);
+static SENSOR_DEVICE_ATTR(vrdhot2, S_IRUGO, show_vrdhot, NULL, 1);
+
+static ssize_t show_gpio(struct device *dev, struct device_attribute *attr,
+				char *buf)
+{
+	struct lm93_data *data = lm93_update_device(dev);
+	return sprintf(buf,"%d\n",LM93_GPI_FROM_REG(data->gpi));
+}
+
+static DEVICE_ATTR(gpio, S_IRUGO, show_gpio, NULL);
+
+static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
+				char *buf)
+{
+	struct lm93_data *data = lm93_update_device(dev);
+	return sprintf(buf,"%d\n",LM93_ALARMS_FROM_REG(data->block1));
+}
+
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+static struct attribute *lm93_attrs[] = {
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in4_input.dev_attr.attr,
+	&sensor_dev_attr_in5_input.dev_attr.attr,
+	&sensor_dev_attr_in6_input.dev_attr.attr,
+	&sensor_dev_attr_in7_input.dev_attr.attr,
+	&sensor_dev_attr_in8_input.dev_attr.attr,
+	&sensor_dev_attr_in9_input.dev_attr.attr,
+	&sensor_dev_attr_in10_input.dev_attr.attr,
+	&sensor_dev_attr_in11_input.dev_attr.attr,
+	&sensor_dev_attr_in12_input.dev_attr.attr,
+	&sensor_dev_attr_in13_input.dev_attr.attr,
+	&sensor_dev_attr_in14_input.dev_attr.attr,
+	&sensor_dev_attr_in15_input.dev_attr.attr,
+	&sensor_dev_attr_in16_input.dev_attr.attr,
+	&sensor_dev_attr_in1_min.dev_attr.attr,
+	&sensor_dev_attr_in2_min.dev_attr.attr,
+	&sensor_dev_attr_in3_min.dev_attr.attr,
+	&sensor_dev_attr_in4_min.dev_attr.attr,
+	&sensor_dev_attr_in5_min.dev_attr.attr,
+	&sensor_dev_attr_in6_min.dev_attr.attr,
+	&sensor_dev_attr_in7_min.dev_attr.attr,
+	&sensor_dev_attr_in8_min.dev_attr.attr,
+	&sensor_dev_attr_in9_min.dev_attr.attr,
+	&sensor_dev_attr_in10_min.dev_attr.attr,
+	&sensor_dev_attr_in11_min.dev_attr.attr,
+	&sensor_dev_attr_in12_min.dev_attr.attr,
+	&sensor_dev_attr_in13_min.dev_attr.attr,
+	&sensor_dev_attr_in14_min.dev_attr.attr,
+	&sensor_dev_attr_in15_min.dev_attr.attr,
+	&sensor_dev_attr_in16_min.dev_attr.attr,
+	&sensor_dev_attr_in1_max.dev_attr.attr,
+	&sensor_dev_attr_in2_max.dev_attr.attr,
+	&sensor_dev_attr_in3_max.dev_attr.attr,
+	&sensor_dev_attr_in4_max.dev_attr.attr,
+	&sensor_dev_attr_in5_max.dev_attr.attr,
+	&sensor_dev_attr_in6_max.dev_attr.attr,
+	&sensor_dev_attr_in7_max.dev_attr.attr,
+	&sensor_dev_attr_in8_max.dev_attr.attr,
+	&sensor_dev_attr_in9_max.dev_attr.attr,
+	&sensor_dev_attr_in10_max.dev_attr.attr,
+	&sensor_dev_attr_in11_max.dev_attr.attr,
+	&sensor_dev_attr_in12_max.dev_attr.attr,
+	&sensor_dev_attr_in13_max.dev_attr.attr,
+	&sensor_dev_attr_in14_max.dev_attr.attr,
+	&sensor_dev_attr_in15_max.dev_attr.attr,
+	&sensor_dev_attr_in16_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp3_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_temp2_min.dev_attr.attr,
+	&sensor_dev_attr_temp3_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp3_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_base.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_base.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_base.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_boost.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_boost.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_boost.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_boost_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_boost_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_boost_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_offset1.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_offset2.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_offset3.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_offset4.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_offset5.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_offset6.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_offset7.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_offset8.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_offset9.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_offset10.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_offset11.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_offset12.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_offset1.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_offset2.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_offset3.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_offset4.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_offset5.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_offset6.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_offset7.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_offset8.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_offset9.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_offset10.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_offset11.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_offset12.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_offset1.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_offset2.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_offset3.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_offset4.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_offset5.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_offset6.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_offset7.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_offset8.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_offset9.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_offset10.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_offset11.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_offset12.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_pwm_min.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_pwm_min.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_pwm_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_auto_offset_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp2_auto_offset_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp3_auto_offset_hyst.dev_attr.attr,
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan3_input.dev_attr.attr,
+	&sensor_dev_attr_fan4_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan3_min.dev_attr.attr,
+	&sensor_dev_attr_fan4_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_smart_tach.dev_attr.attr,
+	&sensor_dev_attr_fan2_smart_tach.dev_attr.attr,
+	&sensor_dev_attr_fan3_smart_tach.dev_attr.attr,
+	&sensor_dev_attr_fan4_smart_tach.dev_attr.attr,
+	&sensor_dev_attr_pwm1.dev_attr.attr,
+	&sensor_dev_attr_pwm2.dev_attr.attr,
+	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm2_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm1_freq.dev_attr.attr,
+	&sensor_dev_attr_pwm2_freq.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_channels.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_channels.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_spinup_min.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_spinup_min.dev_attr.attr,
+	&sensor_dev_attr_pwm1_auto_spinup_time.dev_attr.attr,
+	&sensor_dev_attr_pwm2_auto_spinup_time.dev_attr.attr,
+	&dev_attr_pwm_auto_prochot_ramp.attr,
+	&dev_attr_pwm_auto_vrdhot_ramp.attr,
+	&sensor_dev_attr_cpu0_vid.dev_attr.attr,
+	&sensor_dev_attr_cpu1_vid.dev_attr.attr,
+	&sensor_dev_attr_prochot1.dev_attr.attr,
+	&sensor_dev_attr_prochot2.dev_attr.attr,
+	&sensor_dev_attr_prochot1_avg.dev_attr.attr,
+	&sensor_dev_attr_prochot2_avg.dev_attr.attr,
+	&sensor_dev_attr_prochot1_max.dev_attr.attr,
+	&sensor_dev_attr_prochot2_max.dev_attr.attr,
+	&sensor_dev_attr_prochot1_override.dev_attr.attr,
+	&sensor_dev_attr_prochot2_override.dev_attr.attr,
+	&sensor_dev_attr_prochot1_interval.dev_attr.attr,
+	&sensor_dev_attr_prochot2_interval.dev_attr.attr,
+	&dev_attr_prochot_override_duty_cycle.attr,
+	&dev_attr_prochot_short.attr,
+	&sensor_dev_attr_vrdhot1.dev_attr.attr,
+	&sensor_dev_attr_vrdhot2.dev_attr.attr,
+	&dev_attr_gpio.attr,
+	&dev_attr_alarms.attr,
+	NULL
+};
+
+static struct attribute_group lm93_attr_grp = {
+	.attrs = lm93_attrs,
+};
+
+static void lm93_init_client(struct i2c_client *client)
+{
+	int i;
+	u8 reg;
+
+	/* configure VID pin input thresholds */
+	reg = lm93_read_byte(client, LM93_REG_GPI_VID_CTL);
+	lm93_write_byte(client, LM93_REG_GPI_VID_CTL,
+			reg | (vid_agtl ? 0x03 : 0x00));
+
+	if (init) {
+		/* enable #ALERT pin */
+		reg = lm93_read_byte(client, LM93_REG_CONFIG);
+		lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x08);
+
+		/* enable ASF mode for BMC status registers */
+		reg = lm93_read_byte(client, LM93_REG_STATUS_CONTROL);
+		lm93_write_byte(client, LM93_REG_STATUS_CONTROL, reg | 0x02);
+
+		/* set sleep state to S0 */
+		lm93_write_byte(client, LM93_REG_SLEEP_CONTROL, 0);
+
+		/* unmask #VRDHOT and dynamic VCCP (if nec) error events */
+		reg = lm93_read_byte(client, LM93_REG_MISC_ERR_MASK);
+		reg &= ~0x03;
+		reg &= ~(vccp_limit_type[0] ? 0x10 : 0);
+		reg &= ~(vccp_limit_type[1] ? 0x20 : 0);
+		lm93_write_byte(client, LM93_REG_MISC_ERR_MASK, reg);
+	}
+
+	/* start monitoring */
+	reg = lm93_read_byte(client, LM93_REG_CONFIG);
+	lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x01);
+
+	/* spin until ready */
+	for (i=0; i<20; i++) {
+		msleep(10);
+		if ((lm93_read_byte(client, LM93_REG_CONFIG) & 0x80) == 0x80)
+			return;
+	}
+
+	dev_warn(&client->dev,"timed out waiting for sensor "
+		 "chip to signal ready!\n");
+}
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int lm93_detect(struct i2c_client *client, int kind,
+		       struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+
+	if (!i2c_check_functionality(adapter, LM93_SMBUS_FUNC_MIN))
+		return -ENODEV;
+
+	/* detection */
+	if (kind < 0) {
+		int mfr = lm93_read_byte(client, LM93_REG_MFR_ID);
+
+		if (mfr != 0x01) {
+			dev_dbg(&adapter->dev,"detect failed, "
+				"bad manufacturer id 0x%02x!\n", mfr);
+			return -ENODEV;
+		}
+	}
+
+	if (kind <= 0) {
+		int ver = lm93_read_byte(client, LM93_REG_VER);
+
+		if ((ver == LM93_MFR_ID) || (ver == LM93_MFR_ID_PROTOTYPE)) {
+			kind = lm93;
+		} else {
+			dev_dbg(&adapter->dev,"detect failed, "
+				"bad version id 0x%02x!\n", ver);
+			if (kind == 0)
+				dev_dbg(&adapter->dev,
+					"(ignored 'force' parameter)\n");
+			return -ENODEV;
+		}
+	}
+
+	strlcpy(info->type, "lm93", I2C_NAME_SIZE);
+	dev_dbg(&adapter->dev,"loading %s at %d,0x%02x\n",
+		client->name, i2c_adapter_id(client->adapter),
+		client->addr);
+
+	return 0;
+}
+
+static int lm93_probe(struct i2c_client *client,
+		      const struct i2c_device_id *id)
+{
+	struct lm93_data *data;
+	int err, func;
+	void (*update)(struct lm93_data *, struct i2c_client *);
+
+	/* choose update routine based on bus capabilities */
+	func = i2c_get_functionality(client->adapter);
+	if (((LM93_SMBUS_FUNC_FULL & func) == LM93_SMBUS_FUNC_FULL) &&
+			(!disable_block)) {
+		dev_dbg(&client->dev, "using SMBus block data transactions\n");
+		update = lm93_update_client_full;
+	} else if ((LM93_SMBUS_FUNC_MIN & func) == LM93_SMBUS_FUNC_MIN) {
+		dev_dbg(&client->dev, "disabled SMBus block data "
+			"transactions\n");
+		update = lm93_update_client_min;
+	} else {
+		dev_dbg(&client->dev, "detect failed, "
+			"smbus byte and/or word data not supported!\n");
+		err = -ENODEV;
+		goto err_out;
+	}
+
+	data = kzalloc(sizeof(struct lm93_data), GFP_KERNEL);
+	if (!data) {
+		dev_dbg(&client->dev, "out of memory!\n");
+		err = -ENOMEM;
+		goto err_out;
+	}
+	i2c_set_clientdata(client, data);
+
+	/* housekeeping */
+	data->valid = 0;
+	data->update = update;
+	mutex_init(&data->update_lock);
+
+	/* initialize the chip */
+	lm93_init_client(client);
+
+	err = sysfs_create_group(&client->dev.kobj, &lm93_attr_grp);
+	if (err)
+		goto err_free;
+
+	/* Register hwmon driver class */
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if ( !IS_ERR(data->hwmon_dev))
+		return 0;
+
+	err = PTR_ERR(data->hwmon_dev);
+	dev_err(&client->dev, "error registering hwmon device.\n");
+	sysfs_remove_group(&client->dev.kobj, &lm93_attr_grp);
+err_free:
+	kfree(data);
+err_out:
+	return err;
+}
+
+static int lm93_remove(struct i2c_client *client)
+{
+	struct lm93_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &lm93_attr_grp);
+
+	kfree(data);
+	return 0;
+}
+
+static const struct i2c_device_id lm93_id[] = {
+	{ "lm93", lm93 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, lm93_id);
+
+static struct i2c_driver lm93_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "lm93",
+	},
+	.probe		= lm93_probe,
+	.remove		= lm93_remove,
+	.id_table	= lm93_id,
+	.detect		= lm93_detect,
+	.address_data	= &addr_data,
+};
+
+static int __init lm93_init(void)
+{
+	return i2c_add_driver(&lm93_driver);
+}
+
+static void __exit lm93_exit(void)
+{
+	i2c_del_driver(&lm93_driver);
+}
+
+MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>, "
+		"Hans J. Koch <hjk@linutronix.de");
+MODULE_DESCRIPTION("LM93 driver");
+MODULE_LICENSE("GPL");
+
+module_init(lm93_init);
+module_exit(lm93_exit);
diff --git a/drivers/hwmon/max1111.c b/drivers/hwmon/max1111.c
new file mode 100644
index 0000000..bfaa665
--- /dev/null
+++ b/drivers/hwmon/max1111.c
@@ -0,0 +1,244 @@
+/*
+ * max1111.c - +2.7V, Low-Power, Multichannel, Serial 8-bit ADCs
+ *
+ * Based on arch/arm/mach-pxa/corgi_ssp.c
+ *
+ * Copyright (C) 2004-2005 Richard Purdie
+ *
+ * Copyright (C) 2008 Marvell International Ltd.
+ * 	Eric Miao <eric.miao@marvell.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  publishhed by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/spi/spi.h>
+
+#define MAX1111_TX_BUF_SIZE	1
+#define MAX1111_RX_BUF_SIZE	2
+
+/* MAX1111 Commands */
+#define MAX1111_CTRL_PD0      (1u << 0)
+#define MAX1111_CTRL_PD1      (1u << 1)
+#define MAX1111_CTRL_SGL      (1u << 2)
+#define MAX1111_CTRL_UNI      (1u << 3)
+#define MAX1111_CTRL_SEL_SH   (5)	/* NOTE: bit 4 is ignored */
+#define MAX1111_CTRL_STR      (1u << 7)
+
+struct max1111_data {
+	struct spi_device	*spi;
+	struct device		*hwmon_dev;
+	struct spi_message	msg;
+	struct spi_transfer	xfer[2];
+	uint8_t *tx_buf;
+	uint8_t *rx_buf;
+};
+
+static int max1111_read(struct device *dev, int channel)
+{
+	struct max1111_data *data = dev_get_drvdata(dev);
+	uint8_t v1, v2;
+	int err;
+
+	data->tx_buf[0] = (channel << MAX1111_CTRL_SEL_SH) |
+		MAX1111_CTRL_PD0 | MAX1111_CTRL_PD1 |
+		MAX1111_CTRL_SGL | MAX1111_CTRL_UNI | MAX1111_CTRL_STR;
+
+	err = spi_sync(data->spi, &data->msg);
+	if (err < 0) {
+		dev_err(dev, "spi_sync failed with %d\n", err);
+		return err;
+	}
+
+	v1 = data->rx_buf[0];
+	v2 = data->rx_buf[1];
+
+	if ((v1 & 0xc0) || (v2 & 0x3f))
+		return -EINVAL;
+
+	return (v1 << 2) | (v2 >> 6);
+}
+
+#ifdef CONFIG_SHARPSL_PM
+static struct max1111_data *the_max1111;
+
+int max1111_read_channel(int channel)
+{
+	return max1111_read(&the_max1111->spi->dev, channel);
+}
+EXPORT_SYMBOL(max1111_read_channel);
+#endif
+
+/*
+ * NOTE: SPI devices do not have a default 'name' attribute, which is
+ * likely to be used by hwmon applications to distinguish between
+ * different devices, explicitly add a name attribute here.
+ */
+static ssize_t show_name(struct device *dev,
+			 struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "max1111\n");
+}
+
+static ssize_t show_adc(struct device *dev,
+			struct device_attribute *attr, char *buf)
+{
+	int channel = to_sensor_dev_attr(attr)->index;
+	int ret;
+
+	ret = max1111_read(dev, channel);
+	if (ret < 0)
+		return ret;
+
+	return sprintf(buf, "%d\n", ret);
+}
+
+#define MAX1111_ADC_ATTR(_id)		\
+	SENSOR_DEVICE_ATTR(adc##_id##_in, S_IRUGO, show_adc, NULL, _id)
+
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+static MAX1111_ADC_ATTR(0);
+static MAX1111_ADC_ATTR(1);
+static MAX1111_ADC_ATTR(2);
+static MAX1111_ADC_ATTR(3);
+
+static struct attribute *max1111_attributes[] = {
+	&dev_attr_name.attr,
+	&sensor_dev_attr_adc0_in.dev_attr.attr,
+	&sensor_dev_attr_adc1_in.dev_attr.attr,
+	&sensor_dev_attr_adc2_in.dev_attr.attr,
+	&sensor_dev_attr_adc3_in.dev_attr.attr,
+	NULL,
+};
+
+static const struct attribute_group max1111_attr_group = {
+	.attrs	= max1111_attributes,
+};
+
+static int setup_transfer(struct max1111_data *data)
+{
+	struct spi_message *m;
+	struct spi_transfer *x;
+
+	data->tx_buf = kmalloc(MAX1111_TX_BUF_SIZE, GFP_KERNEL);
+	if (!data->tx_buf)
+		return -ENOMEM;
+
+	data->rx_buf = kmalloc(MAX1111_RX_BUF_SIZE, GFP_KERNEL);
+	if (!data->rx_buf) {
+		kfree(data->tx_buf);
+		return -ENOMEM;
+	}
+
+	m = &data->msg;
+	x = &data->xfer[0];
+
+	spi_message_init(m);
+
+	x->tx_buf = &data->tx_buf[0];
+	x->len = 1;
+	spi_message_add_tail(x, m);
+
+	x++;
+	x->rx_buf = &data->rx_buf[0];
+	x->len = 2;
+	spi_message_add_tail(x, m);
+
+	return 0;
+}
+
+static int __devinit max1111_probe(struct spi_device *spi)
+{
+	struct max1111_data *data;
+	int err;
+
+	spi->bits_per_word = 8;
+	spi->mode = SPI_MODE_0;
+	err = spi_setup(spi);
+	if (err < 0)
+		return err;
+
+	data = kzalloc(sizeof(struct max1111_data), GFP_KERNEL);
+	if (data == NULL) {
+		dev_err(&spi->dev, "failed to allocate memory\n");
+		return -ENOMEM;
+	}
+
+	err = setup_transfer(data);
+	if (err)
+		goto err_free_data;
+
+	data->spi = spi;
+	spi_set_drvdata(spi, data);
+
+	err = sysfs_create_group(&spi->dev.kobj, &max1111_attr_group);
+	if (err) {
+		dev_err(&spi->dev, "failed to create attribute group\n");
+		goto err_free_all;
+	}
+
+	data->hwmon_dev = hwmon_device_register(&spi->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		dev_err(&spi->dev, "failed to create hwmon device\n");
+		err = PTR_ERR(data->hwmon_dev);
+		goto err_remove;
+	}
+
+#ifdef CONFIG_SHARPSL_PM
+	the_max1111 = data;
+#endif
+	return 0;
+
+err_remove:
+	sysfs_remove_group(&spi->dev.kobj, &max1111_attr_group);
+err_free_all:
+	kfree(data->rx_buf);
+	kfree(data->tx_buf);
+err_free_data:
+	kfree(data);
+	return err;
+}
+
+static int __devexit max1111_remove(struct spi_device *spi)
+{
+	struct max1111_data *data = spi_get_drvdata(spi);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&spi->dev.kobj, &max1111_attr_group);
+	kfree(data->rx_buf);
+	kfree(data->tx_buf);
+	kfree(data);
+	return 0;
+}
+
+static struct spi_driver max1111_driver = {
+	.driver		= {
+		.name	= "max1111",
+		.owner	= THIS_MODULE,
+	},
+	.probe		= max1111_probe,
+	.remove		= __devexit_p(max1111_remove),
+};
+
+static int __init max1111_init(void)
+{
+	return spi_register_driver(&max1111_driver);
+}
+module_init(max1111_init);
+
+static void __exit max1111_exit(void)
+{
+	spi_unregister_driver(&max1111_driver);
+}
+module_exit(max1111_exit);
+
+MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>");
+MODULE_DESCRIPTION("MAX1111 ADC Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/max127.c b/drivers/hwmon/max127.c
new file mode 100644
index 0000000..a223f94
--- /dev/null
+++ b/drivers/hwmon/max127.c
@@ -0,0 +1,312 @@
+/*
+ * max127.c - Part of lm_sensors, Linux kernel modules for hardware
+ *             monitoring
+ * Copyright 2004-present Facebook. All Rights Reserved.
+ * Copyright (C) 2003-2004 Alexey Fisher <fishor@mail.ru>
+ *                         Jean Delvare <khali@linux-fr.org>
+ *
+ * Based on the max1619 driver, which was based on the lm90 driver.
+ * The MAX127 is a voltage sensor chip made by Maxim.  It reports
+ * up to eight voltages, with a choice of maximums * of 5V or 10V.
+ * In addition, it can read either only positive voltages,
+ * or negative voltages as well, for a maximum range of -10V to +10V.
+ *
+ * Complete datasheet can be obtained from Maxim's website at:
+ *   http://datasheets.maximintegrated.com/en/ds/MAX127-MAX128B.pdf
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+
+static const unsigned short normal_i2c[] = {
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
+
+/*
+ * Insmod parameters
+ */
+
+I2C_CLIENT_INSMOD_1(max127);
+
+static int scaling;
+module_param(scaling, int, 0);
+MODULE_PARM_DESC(scaling, "Fixed-point scaling factor (* 10000), ie 24414");
+
+
+/*
+ * The MAX127 I2C messages
+ */
+
+/* We send a single query byte to the device, setting the following bits: */
+
+#define MAX127_REG_R_START		0x80	/* Top bit must be set */
+#define MAX127_REG_R_SEL_MASK		0x70	/* Which of 8 inputs to get */
+#define MAX127_REG_R_SEL_SHIFT		4
+#define MAX127_REG_R_RNG		0x08	/* 10v (otherwise 5v)  */
+#define MAX127_REG_R_BIP		0x04	/* show negative voltage */
+#define MAX127_REG_R_PD1		0x02	/* power saving controls */
+#define MAX127_REG_R_PD0		0x01
+
+/* Must shift return value to get a 12-bit value */
+#define MAX127_RESULT_SHIFT		4
+
+#define MAX127_CHANNELS			8
+
+/*
+ * Functions declaration
+ */
+
+static int max127_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int max127_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
+static int max127_remove(struct i2c_client *client);
+static void max127_update_device(struct device *dev, int which);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static const struct i2c_device_id max127_id[] = {
+	{ "max127", max127 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, max127_id);
+
+static struct i2c_driver max127_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "max127",
+	},
+	.probe		= max127_probe,
+	.remove		= max127_remove,
+	.id_table	= max127_id,
+	.detect		= max127_detect,
+	.address_data	= &addr_data,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct max127_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	u16 valid; /* zero until following fields are valid */
+
+	u16 voltage;
+};
+
+/*
+ * Sysfs stuff
+ */
+ 
+static ssize_t show_in(struct device *dev, struct device_attribute *attr,
+		       char *buf)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct max127_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int which = sensor_attr->index;
+	int valid;
+	unsigned voltage;
+
+	mutex_lock(&data->update_lock);
+	max127_update_device(dev, which);
+	valid = data->valid;
+	voltage = data->voltage;
+	mutex_unlock(&data->update_lock);
+
+	if (scaling)
+		voltage = voltage * scaling / 10000;
+
+	if (!valid)
+		return -EIO;
+	return sprintf(buf, "%u\n", voltage);
+}
+
+
+static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
+static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
+static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
+static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
+
+static struct attribute *max127_attributes[] = {
+	&sensor_dev_attr_in0_input.dev_attr.attr,
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in4_input.dev_attr.attr,
+	&sensor_dev_attr_in5_input.dev_attr.attr,
+	&sensor_dev_attr_in6_input.dev_attr.attr,
+	&sensor_dev_attr_in7_input.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group max127_group = {
+	.attrs = max127_attributes,
+};
+
+/*
+ * Real code
+ */
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int max127_detect(struct i2c_client *new_client, int kind,
+		  	 struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = new_client->adapter;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
+				     I2C_FUNC_SMBUS_WORD_DATA))
+		return -EIO;
+
+	/*
+	 * We don't currently do any detection of the MAX127, although
+	 * presumably we could try setting and unsetting the top
+	 * bit in a query to see whether it does conversions or fails.
+	 */
+
+	strlcpy(info->type, "max127", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int max127_probe(struct i2c_client *new_client,
+		        const struct i2c_device_id *id)
+{
+	struct max127_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct max127_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(new_client, data);
+	data->valid = 0;
+	mutex_init(&data->update_lock);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&new_client->dev.kobj, &max127_group)))
+		goto exit_free;
+
+	data->hwmon_dev = hwmon_device_register(&new_client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove_files;
+	}
+
+	return 0;
+
+exit_remove_files:
+	sysfs_remove_group(&new_client->dev.kobj, &max127_group);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+static int max127_remove(struct i2c_client *client)
+{
+	struct max127_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &max127_group);
+
+	kfree(data);
+	return 0;
+}
+
+static void max127_update_device(struct device *dev, int which)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct max127_data *data = i2c_get_clientdata(client);
+	struct i2c_msg msg;
+	int status;
+	u8 buf[2];
+
+	/*
+	 * The MAX127 doesn't use standard SMBus queries; it needs a
+	 * write to specify what conversion to make, followed by an i2c
+	 * STOP.  It can then be read for the two-byte voltage value.
+	 * Perhaps the idea is that a query can be started, then
+	 * checked at an arbitrarily later time.  We don't support
+	 * that -- we just get a result immediately.
+	 *
+	 * We have to use i2c_transfer to do the second read without
+	 * writing to any registers, rather than using the i2c_smbus_xxxxxx
+	 * queries that most of the other hwmon drivers do.
+	 */
+
+	dev_dbg(&client->dev, "Updating max127 data for probe %d.\n", which);
+	data->valid = 0;
+
+	buf[0] = MAX127_REG_R_START | (which << MAX127_REG_R_SEL_SHIFT) |
+		MAX127_REG_R_RNG;
+	msg.addr = client->addr;
+	msg.flags = 0;
+	msg.buf = buf;
+	msg.len = 1;
+	status = i2c_transfer(client->adapter, &msg, 1);
+
+	if (status != 1) {
+		return;
+	}
+
+	msg.addr = client->addr;
+	msg.flags = I2C_M_RD;
+	msg.buf = buf;
+	msg.len = 2;
+	status = i2c_transfer(client->adapter, &msg, 1);
+
+	data->voltage = (buf[0] << 8) | buf[1];
+	data->voltage >>= MAX127_RESULT_SHIFT;
+
+	if (status == 1)
+		data->valid = 1;
+}
+
+static int __init sensors_max127_init(void)
+{
+	return i2c_add_driver(&max127_driver);
+}
+
+static void __exit sensors_max127_exit(void)
+{
+	i2c_del_driver(&max127_driver);
+}
+
+MODULE_AUTHOR("Kevin Lahey <klahey@fb.com>");
+MODULE_DESCRIPTION("MAX127 sensor driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_max127_init);
+module_exit(sensors_max127_exit);
diff --git a/drivers/hwmon/max1619.c b/drivers/hwmon/max1619.c
new file mode 100644
index 0000000..7897754
--- /dev/null
+++ b/drivers/hwmon/max1619.c
@@ -0,0 +1,402 @@
+/*
+ * max1619.c - Part of lm_sensors, Linux kernel modules for hardware
+ *             monitoring
+ * Copyright (C) 2003-2004 Alexey Fisher <fishor@mail.ru>
+ *                         Jean Delvare <khali@linux-fr.org>
+ *
+ * Based on the lm90 driver. The MAX1619 is a sensor chip made by Maxim.
+ * It reports up to two temperatures (its own plus up to
+ * one external one). Complete datasheet can be
+ * obtained from Maxim's website at:
+ *   http://pdfserv.maxim-ic.com/en/ds/MAX1619.pdf
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+
+static const unsigned short normal_i2c[] = {
+	0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e, I2C_CLIENT_END };
+
+/*
+ * Insmod parameters
+ */
+
+I2C_CLIENT_INSMOD_1(max1619);
+
+/*
+ * The MAX1619 registers
+ */
+
+#define MAX1619_REG_R_MAN_ID		0xFE
+#define MAX1619_REG_R_CHIP_ID		0xFF
+#define MAX1619_REG_R_CONFIG		0x03
+#define MAX1619_REG_W_CONFIG		0x09
+#define MAX1619_REG_R_CONVRATE		0x04
+#define MAX1619_REG_W_CONVRATE		0x0A
+#define MAX1619_REG_R_STATUS		0x02
+#define MAX1619_REG_R_LOCAL_TEMP	0x00
+#define MAX1619_REG_R_REMOTE_TEMP	0x01
+#define MAX1619_REG_R_REMOTE_HIGH	0x07
+#define MAX1619_REG_W_REMOTE_HIGH	0x0D
+#define MAX1619_REG_R_REMOTE_LOW	0x08
+#define MAX1619_REG_W_REMOTE_LOW	0x0E
+#define MAX1619_REG_R_REMOTE_CRIT	0x10
+#define MAX1619_REG_W_REMOTE_CRIT	0x12
+#define MAX1619_REG_R_TCRIT_HYST	0x11
+#define MAX1619_REG_W_TCRIT_HYST	0x13
+
+/*
+ * Conversions
+ */
+
+static int temp_from_reg(int val)
+{
+	return (val & 0x80 ? val-0x100 : val) * 1000;
+}
+
+static int temp_to_reg(int val)
+{
+	return (val < 0 ? val+0x100*1000 : val) / 1000;
+}
+
+/*
+ * Functions declaration
+ */
+
+static int max1619_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int max1619_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
+static void max1619_init_client(struct i2c_client *client);
+static int max1619_remove(struct i2c_client *client);
+static struct max1619_data *max1619_update_device(struct device *dev);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static const struct i2c_device_id max1619_id[] = {
+	{ "max1619", max1619 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, max1619_id);
+
+static struct i2c_driver max1619_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "max1619",
+	},
+	.probe		= max1619_probe,
+	.remove		= max1619_remove,
+	.id_table	= max1619_id,
+	.detect		= max1619_detect,
+	.address_data	= &addr_data,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct max1619_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	char valid; /* zero until following fields are valid */
+	unsigned long last_updated; /* in jiffies */
+
+	/* registers values */
+	u8 temp_input1; /* local */
+	u8 temp_input2, temp_low2, temp_high2; /* remote */
+	u8 temp_crit2;
+	u8 temp_hyst2;
+	u8 alarms; 
+};
+
+/*
+ * Sysfs stuff
+ */
+
+#define show_temp(value) \
+static ssize_t show_##value(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+	struct max1619_data *data = max1619_update_device(dev); \
+	return sprintf(buf, "%d\n", temp_from_reg(data->value)); \
+}
+show_temp(temp_input1);
+show_temp(temp_input2);
+show_temp(temp_low2);
+show_temp(temp_high2);
+show_temp(temp_crit2);
+show_temp(temp_hyst2);
+
+#define set_temp2(value, reg) \
+static ssize_t set_##value(struct device *dev, struct device_attribute *attr, const char *buf, \
+	size_t count) \
+{ \
+	struct i2c_client *client = to_i2c_client(dev); \
+	struct max1619_data *data = i2c_get_clientdata(client); \
+	long val = simple_strtol(buf, NULL, 10); \
+ \
+	mutex_lock(&data->update_lock); \
+	data->value = temp_to_reg(val); \
+	i2c_smbus_write_byte_data(client, reg, data->value); \
+	mutex_unlock(&data->update_lock); \
+	return count; \
+}
+
+set_temp2(temp_low2, MAX1619_REG_W_REMOTE_LOW);
+set_temp2(temp_high2, MAX1619_REG_W_REMOTE_HIGH);
+set_temp2(temp_crit2, MAX1619_REG_W_REMOTE_CRIT);
+set_temp2(temp_hyst2, MAX1619_REG_W_TCRIT_HYST);
+
+static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct max1619_data *data = max1619_update_device(dev);
+	return sprintf(buf, "%d\n", data->alarms);
+}
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	struct max1619_data *data = max1619_update_device(dev);
+	return sprintf(buf, "%d\n", (data->alarms >> bitnr) & 1);
+}
+
+static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input1, NULL);
+static DEVICE_ATTR(temp2_input, S_IRUGO, show_temp_input2, NULL);
+static DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_low2,
+	set_temp_low2);
+static DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_high2,
+	set_temp_high2);
+static DEVICE_ATTR(temp2_crit, S_IWUSR | S_IRUGO, show_temp_crit2,
+	set_temp_crit2);
+static DEVICE_ATTR(temp2_crit_hyst, S_IWUSR | S_IRUGO, show_temp_hyst2,
+	set_temp_hyst2);
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 4);
+
+static struct attribute *max1619_attributes[] = {
+	&dev_attr_temp1_input.attr,
+	&dev_attr_temp2_input.attr,
+	&dev_attr_temp2_min.attr,
+	&dev_attr_temp2_max.attr,
+	&dev_attr_temp2_crit.attr,
+	&dev_attr_temp2_crit_hyst.attr,
+
+	&dev_attr_alarms.attr,
+	&sensor_dev_attr_temp2_crit_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_fault.dev_attr.attr,
+	&sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group max1619_group = {
+	.attrs = max1619_attributes,
+};
+
+/*
+ * Real code
+ */
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int max1619_detect(struct i2c_client *new_client, int kind,
+			  struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = new_client->adapter;
+	u8 reg_config=0, reg_convrate=0, reg_status=0;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	/*
+	 * Now we do the remaining detection. A negative kind means that
+	 * the driver was loaded with no force parameter (default), so we
+	 * must both detect and identify the chip. A zero kind means that
+	 * the driver was loaded with the force parameter, the detection
+	 * step shall be skipped. A positive kind means that the driver
+	 * was loaded with the force parameter and a given kind of chip is
+	 * requested, so both the detection and the identification steps
+	 * are skipped.
+	 */
+	if (kind < 0) { /* detection */
+		reg_config = i2c_smbus_read_byte_data(new_client,
+			      MAX1619_REG_R_CONFIG);
+		reg_convrate = i2c_smbus_read_byte_data(new_client,
+			       MAX1619_REG_R_CONVRATE);
+		reg_status = i2c_smbus_read_byte_data(new_client,
+				MAX1619_REG_R_STATUS);
+		if ((reg_config & 0x03) != 0x00
+		 || reg_convrate > 0x07 || (reg_status & 0x61 ) !=0x00) {
+			dev_dbg(&adapter->dev,
+				"MAX1619 detection failed at 0x%02x.\n",
+				new_client->addr);
+			return -ENODEV;
+		}
+	}
+
+	if (kind <= 0) { /* identification */
+		u8 man_id, chip_id;
+	
+		man_id = i2c_smbus_read_byte_data(new_client,
+			 MAX1619_REG_R_MAN_ID);
+		chip_id = i2c_smbus_read_byte_data(new_client,
+			  MAX1619_REG_R_CHIP_ID);
+		
+		if ((man_id == 0x4D) && (chip_id == 0x04))
+			kind = max1619;
+
+		if (kind <= 0) { /* identification failed */
+			dev_info(&adapter->dev,
+			    "Unsupported chip (man_id=0x%02X, "
+			    "chip_id=0x%02X).\n", man_id, chip_id);
+			return -ENODEV;
+		}
+	}
+
+	strlcpy(info->type, "max1619", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int max1619_probe(struct i2c_client *new_client,
+			 const struct i2c_device_id *id)
+{
+	struct max1619_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct max1619_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(new_client, data);
+	data->valid = 0;
+	mutex_init(&data->update_lock);
+
+	/* Initialize the MAX1619 chip */
+	max1619_init_client(new_client);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&new_client->dev.kobj, &max1619_group)))
+		goto exit_free;
+
+	data->hwmon_dev = hwmon_device_register(&new_client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove_files;
+	}
+
+	return 0;
+
+exit_remove_files:
+	sysfs_remove_group(&new_client->dev.kobj, &max1619_group);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+static void max1619_init_client(struct i2c_client *client)
+{
+	u8 config;
+
+	/*
+	 * Start the conversions.
+	 */
+	i2c_smbus_write_byte_data(client, MAX1619_REG_W_CONVRATE,
+				  5); /* 2 Hz */
+	config = i2c_smbus_read_byte_data(client, MAX1619_REG_R_CONFIG);
+	if (config & 0x40)
+		i2c_smbus_write_byte_data(client, MAX1619_REG_W_CONFIG,
+					  config & 0xBF); /* run */
+}
+
+static int max1619_remove(struct i2c_client *client)
+{
+	struct max1619_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &max1619_group);
+
+	kfree(data);
+	return 0;
+}
+
+static struct max1619_data *max1619_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct max1619_data *data = i2c_get_clientdata(client);
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
+		dev_dbg(&client->dev, "Updating max1619 data.\n");
+		data->temp_input1 = i2c_smbus_read_byte_data(client,
+					MAX1619_REG_R_LOCAL_TEMP);
+		data->temp_input2 = i2c_smbus_read_byte_data(client,
+					MAX1619_REG_R_REMOTE_TEMP);
+		data->temp_high2 = i2c_smbus_read_byte_data(client,
+					MAX1619_REG_R_REMOTE_HIGH);
+		data->temp_low2 = i2c_smbus_read_byte_data(client,
+					MAX1619_REG_R_REMOTE_LOW);
+		data->temp_crit2 = i2c_smbus_read_byte_data(client,
+					MAX1619_REG_R_REMOTE_CRIT);
+		data->temp_hyst2 = i2c_smbus_read_byte_data(client,
+					MAX1619_REG_R_TCRIT_HYST);
+		data->alarms = i2c_smbus_read_byte_data(client,
+					MAX1619_REG_R_STATUS);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init sensors_max1619_init(void)
+{
+	return i2c_add_driver(&max1619_driver);
+}
+
+static void __exit sensors_max1619_exit(void)
+{
+	i2c_del_driver(&max1619_driver);
+}
+
+MODULE_AUTHOR("Alexey Fisher <fishor@mail.ru> and "
+	"Jean Delvare <khali@linux-fr.org>");
+MODULE_DESCRIPTION("MAX1619 sensor driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_max1619_init);
+module_exit(sensors_max1619_exit);
diff --git a/drivers/hwmon/max6650.c b/drivers/hwmon/max6650.c
new file mode 100644
index 0000000..f27af6a
--- /dev/null
+++ b/drivers/hwmon/max6650.c
@@ -0,0 +1,686 @@
+/*
+ * max6650.c - Part of lm_sensors, Linux kernel modules for hardware
+ *             monitoring.
+ *
+ * (C) 2007 by Hans J. Koch <hjk@linutronix.de>
+ *
+ * based on code written by John Morris <john.morris@spirentcom.com>
+ * Copyright (c) 2003 Spirent Communications
+ * and Claus Gindhart <claus.gindhart@kontron.com>
+ *
+ * This module has only been tested with the MAX6650 chip. It should
+ * also work with the MAX6651. It does not distinguish max6650 and max6651
+ * chips.
+ *
+ * Tha datasheet was last seen at:
+ *
+ *        http://pdfserv.maxim-ic.com/en/ds/MAX6650-MAX6651.pdf
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+
+/*
+ * Addresses to scan. There are four disjoint possibilities, by pin config.
+ */
+
+static const unsigned short normal_i2c[] = {0x1b, 0x1f, 0x48, 0x4b,
+						I2C_CLIENT_END};
+
+/*
+ * Insmod parameters
+ */
+
+/* fan_voltage: 5=5V fan, 12=12V fan, 0=don't change */
+static int fan_voltage;
+/* prescaler: Possible values are 1, 2, 4, 8, 16 or 0 for don't change */
+static int prescaler;
+/* clock: The clock frequency of the chip the driver should assume */
+static int clock = 254000;
+
+module_param(fan_voltage, int, S_IRUGO);
+module_param(prescaler, int, S_IRUGO);
+module_param(clock, int, S_IRUGO);
+
+I2C_CLIENT_INSMOD_1(max6650);
+
+/*
+ * MAX 6650/6651 registers
+ */
+
+#define MAX6650_REG_SPEED	0x00
+#define MAX6650_REG_CONFIG	0x02
+#define MAX6650_REG_GPIO_DEF	0x04
+#define MAX6650_REG_DAC		0x06
+#define MAX6650_REG_ALARM_EN	0x08
+#define MAX6650_REG_ALARM	0x0A
+#define MAX6650_REG_TACH0	0x0C
+#define MAX6650_REG_TACH1	0x0E
+#define MAX6650_REG_TACH2	0x10
+#define MAX6650_REG_TACH3	0x12
+#define MAX6650_REG_GPIO_STAT	0x14
+#define MAX6650_REG_COUNT	0x16
+
+/*
+ * Config register bits
+ */
+
+#define MAX6650_CFG_V12			0x08
+#define MAX6650_CFG_PRESCALER_MASK	0x07
+#define MAX6650_CFG_PRESCALER_2		0x01
+#define MAX6650_CFG_PRESCALER_4		0x02
+#define MAX6650_CFG_PRESCALER_8		0x03
+#define MAX6650_CFG_PRESCALER_16	0x04
+#define MAX6650_CFG_MODE_MASK		0x30
+#define MAX6650_CFG_MODE_ON		0x00
+#define MAX6650_CFG_MODE_OFF		0x10
+#define MAX6650_CFG_MODE_CLOSED_LOOP	0x20
+#define MAX6650_CFG_MODE_OPEN_LOOP	0x30
+#define MAX6650_COUNT_MASK		0x03
+
+/* Minimum and maximum values of the FAN-RPM */
+#define FAN_RPM_MIN 240
+#define FAN_RPM_MAX 30000
+
+#define DIV_FROM_REG(reg) (1 << (reg & 7))
+
+static int max6650_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int max6650_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
+static int max6650_init_client(struct i2c_client *client);
+static int max6650_remove(struct i2c_client *client);
+static struct max6650_data *max6650_update_device(struct device *dev);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static const struct i2c_device_id max6650_id[] = {
+	{ "max6650", max6650 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, max6650_id);
+
+static struct i2c_driver max6650_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "max6650",
+	},
+	.probe		= max6650_probe,
+	.remove		= max6650_remove,
+	.id_table	= max6650_id,
+	.detect		= max6650_detect,
+	.address_data	= &addr_data,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct max6650_data
+{
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	char valid; /* zero until following fields are valid */
+	unsigned long last_updated; /* in jiffies */
+
+	/* register values */
+	u8 speed;
+	u8 config;
+	u8 tach[4];
+	u8 count;
+	u8 dac;
+};
+
+static ssize_t get_fan(struct device *dev, struct device_attribute *devattr,
+		       char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct max6650_data *data = max6650_update_device(dev);
+	int rpm;
+
+	/*
+	* Calculation details:
+	*
+	* Each tachometer counts over an interval given by the "count"
+	* register (0.25, 0.5, 1 or 2 seconds). This module assumes
+	* that the fans produce two pulses per revolution (this seems
+	* to be the most common).
+	*/
+
+	rpm = ((data->tach[attr->index] * 120) / DIV_FROM_REG(data->count));
+	return sprintf(buf, "%d\n", rpm);
+}
+
+/*
+ * Set the fan speed to the specified RPM (or read back the RPM setting).
+ * This works in closed loop mode only. Use pwm1 for open loop speed setting.
+ *
+ * The MAX6650/1 will automatically control fan speed when in closed loop
+ * mode.
+ *
+ * Assumptions:
+ *
+ * 1) The MAX6650/1 internal 254kHz clock frequency is set correctly. Use
+ *    the clock module parameter if you need to fine tune this.
+ *
+ * 2) The prescaler (low three bits of the config register) has already
+ *    been set to an appropriate value. Use the prescaler module parameter
+ *    if your BIOS doesn't initialize the chip properly.
+ *
+ * The relevant equations are given on pages 21 and 22 of the datasheet.
+ *
+ * From the datasheet, the relevant equation when in regulation is:
+ *
+ *    [fCLK / (128 x (KTACH + 1))] = 2 x FanSpeed / KSCALE
+ *
+ * where:
+ *
+ *    fCLK is the oscillator frequency (either the 254kHz internal
+ *         oscillator or the externally applied clock)
+ *
+ *    KTACH is the value in the speed register
+ *
+ *    FanSpeed is the speed of the fan in rps
+ *
+ *    KSCALE is the prescaler value (1, 2, 4, 8, or 16)
+ *
+ * When reading, we need to solve for FanSpeed. When writing, we need to
+ * solve for KTACH.
+ *
+ * Note: this tachometer is completely separate from the tachometers
+ * used to measure the fan speeds. Only one fan's speed (fan1) is
+ * controlled.
+ */
+
+static ssize_t get_target(struct device *dev, struct device_attribute *devattr,
+			 char *buf)
+{
+	struct max6650_data *data = max6650_update_device(dev);
+	int kscale, ktach, rpm;
+
+	/*
+	* Use the datasheet equation:
+	*
+	*    FanSpeed = KSCALE x fCLK / [256 x (KTACH + 1)]
+	*
+	* then multiply by 60 to give rpm.
+	*/
+
+	kscale = DIV_FROM_REG(data->config);
+	ktach = data->speed;
+	rpm = 60 * kscale * clock / (256 * (ktach + 1));
+	return sprintf(buf, "%d\n", rpm);
+}
+
+static ssize_t set_target(struct device *dev, struct device_attribute *devattr,
+			 const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct max6650_data *data = i2c_get_clientdata(client);
+	int rpm = simple_strtoul(buf, NULL, 10);
+	int kscale, ktach;
+
+	rpm = SENSORS_LIMIT(rpm, FAN_RPM_MIN, FAN_RPM_MAX);
+
+	/*
+	* Divide the required speed by 60 to get from rpm to rps, then
+	* use the datasheet equation:
+	*
+	*     KTACH = [(fCLK x KSCALE) / (256 x FanSpeed)] - 1
+	*/
+
+	mutex_lock(&data->update_lock);
+
+	kscale = DIV_FROM_REG(data->config);
+	ktach = ((clock * kscale) / (256 * rpm / 60)) - 1;
+	if (ktach < 0)
+		ktach = 0;
+	if (ktach > 255)
+		ktach = 255;
+	data->speed = ktach;
+
+	i2c_smbus_write_byte_data(client, MAX6650_REG_SPEED, data->speed);
+
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/*
+ * Get/set the fan speed in open loop mode using pwm1 sysfs file.
+ * Speed is given as a relative value from 0 to 255, where 255 is maximum
+ * speed. Note that this is done by writing directly to the chip's DAC,
+ * it won't change the closed loop speed set by fan1_target.
+ * Also note that due to rounding errors it is possible that you don't read
+ * back exactly the value you have set.
+ */
+
+static ssize_t get_pwm(struct device *dev, struct device_attribute *devattr,
+		       char *buf)
+{
+	int pwm;
+	struct max6650_data *data = max6650_update_device(dev);
+
+	/* Useful range for dac is 0-180 for 12V fans and 0-76 for 5V fans.
+	   Lower DAC values mean higher speeds. */
+	if (data->config & MAX6650_CFG_V12)
+		pwm = 255 - (255 * (int)data->dac)/180;
+	else
+		pwm = 255 - (255 * (int)data->dac)/76;
+
+	if (pwm < 0)
+		pwm = 0;
+
+	return sprintf(buf, "%d\n", pwm);
+}
+
+static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr,
+			const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct max6650_data *data = i2c_get_clientdata(client);
+	int pwm = simple_strtoul(buf, NULL, 10);
+
+	pwm = SENSORS_LIMIT(pwm, 0, 255);
+
+	mutex_lock(&data->update_lock);
+
+	if (data->config & MAX6650_CFG_V12)
+		data->dac = 180 - (180 * pwm)/255;
+	else
+		data->dac = 76 - (76 * pwm)/255;
+
+	i2c_smbus_write_byte_data(client, MAX6650_REG_DAC, data->dac);
+
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/*
+ * Get/Set controller mode:
+ * Possible values:
+ * 0 = Fan always on
+ * 1 = Open loop, Voltage is set according to speed, not regulated.
+ * 2 = Closed loop, RPM for all fans regulated by fan1 tachometer
+ */
+
+static ssize_t get_enable(struct device *dev, struct device_attribute *devattr,
+			  char *buf)
+{
+	struct max6650_data *data = max6650_update_device(dev);
+	int mode = (data->config & MAX6650_CFG_MODE_MASK) >> 4;
+	int sysfs_modes[4] = {0, 1, 2, 1};
+
+	return sprintf(buf, "%d\n", sysfs_modes[mode]);
+}
+
+static ssize_t set_enable(struct device *dev, struct device_attribute *devattr,
+			  const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct max6650_data *data = i2c_get_clientdata(client);
+	int mode = simple_strtoul(buf, NULL, 10);
+	int max6650_modes[3] = {0, 3, 2};
+
+	if ((mode < 0)||(mode > 2)) {
+		dev_err(&client->dev,
+			"illegal value for pwm1_enable (%d)\n", mode);
+		return -EINVAL;
+	}
+
+	mutex_lock(&data->update_lock);
+
+	data->config = i2c_smbus_read_byte_data(client, MAX6650_REG_CONFIG);
+	data->config = (data->config & ~MAX6650_CFG_MODE_MASK)
+		       | (max6650_modes[mode] << 4);
+
+	i2c_smbus_write_byte_data(client, MAX6650_REG_CONFIG, data->config);
+
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/*
+ * Read/write functions for fan1_div sysfs file. The MAX6650 has no such
+ * divider. We handle this by converting between divider and counttime:
+ *
+ * (counttime == k) <==> (divider == 2^k), k = 0, 1, 2, or 3
+ *
+ * Lower values of k allow to connect a faster fan without the risk of
+ * counter overflow. The price is lower resolution. You can also set counttime
+ * using the module parameter. Note that the module parameter "prescaler" also
+ * influences the behaviour. Unfortunately, there's no sysfs attribute
+ * defined for that. See the data sheet for details.
+ */
+
+static ssize_t get_div(struct device *dev, struct device_attribute *devattr,
+		       char *buf)
+{
+	struct max6650_data *data = max6650_update_device(dev);
+
+	return sprintf(buf, "%d\n", DIV_FROM_REG(data->count));
+}
+
+static ssize_t set_div(struct device *dev, struct device_attribute *devattr,
+		       const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct max6650_data *data = i2c_get_clientdata(client);
+	int div = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	switch (div) {
+	case 1:
+		data->count = 0;
+		break;
+	case 2:
+		data->count = 1;
+		break;
+	case 4:
+		data->count = 2;
+		break;
+	case 8:
+		data->count = 3;
+		break;
+	default:
+		dev_err(&client->dev,
+			"illegal value for fan divider (%d)\n", div);
+		return -EINVAL;
+	}
+
+	i2c_smbus_write_byte_data(client, MAX6650_REG_COUNT, data->count);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, get_fan, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, get_fan, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, get_fan, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, get_fan, NULL, 3);
+static DEVICE_ATTR(fan1_target, S_IWUSR | S_IRUGO, get_target, set_target);
+static DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO, get_div, set_div);
+static DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, get_enable, set_enable);
+static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, get_pwm, set_pwm);
+
+
+static struct attribute *max6650_attrs[] = {
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan3_input.dev_attr.attr,
+	&sensor_dev_attr_fan4_input.dev_attr.attr,
+	&dev_attr_fan1_target.attr,
+	&dev_attr_fan1_div.attr,
+	&dev_attr_pwm1_enable.attr,
+	&dev_attr_pwm1.attr,
+	NULL
+};
+
+static struct attribute_group max6650_attr_grp = {
+	.attrs = max6650_attrs,
+};
+
+/*
+ * Real code
+ */
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int max6650_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+	int address = client->addr;
+
+	dev_dbg(&adapter->dev, "max6650_detect called, kind = %d\n", kind);
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
+		dev_dbg(&adapter->dev, "max6650: I2C bus doesn't support "
+					"byte read mode, skipping.\n");
+		return -ENODEV;
+	}
+
+	/*
+	 * Now we do the remaining detection. A negative kind means that
+	 * the driver was loaded with no force parameter (default), so we
+	 * must both detect and identify the chip (actually there is only
+	 * one possible kind of chip for now, max6650). A zero kind means that
+	 * the driver was loaded with the force parameter, the detection
+	 * step shall be skipped. A positive kind means that the driver
+	 * was loaded with the force parameter and a given kind of chip is
+	 * requested, so both the detection and the identification steps
+	 * are skipped.
+	 *
+	 * Currently I can find no way to distinguish between a MAX6650 and
+	 * a MAX6651. This driver has only been tried on the former.
+	 */
+
+	if ((kind < 0) &&
+	   (  (i2c_smbus_read_byte_data(client, MAX6650_REG_CONFIG) & 0xC0)
+	    ||(i2c_smbus_read_byte_data(client, MAX6650_REG_GPIO_STAT) & 0xE0)
+	    ||(i2c_smbus_read_byte_data(client, MAX6650_REG_ALARM_EN) & 0xE0)
+	    ||(i2c_smbus_read_byte_data(client, MAX6650_REG_ALARM) & 0xE0)
+	    ||(i2c_smbus_read_byte_data(client, MAX6650_REG_COUNT) & 0xFC))) {
+		dev_dbg(&adapter->dev,
+			"max6650: detection failed at 0x%02x.\n", address);
+		return -ENODEV;
+	}
+
+	dev_info(&adapter->dev, "max6650: chip found at 0x%02x.\n", address);
+
+	strlcpy(info->type, "max6650", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int max6650_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct max6650_data *data;
+	int err;
+
+	if (!(data = kzalloc(sizeof(struct max6650_data), GFP_KERNEL))) {
+		dev_err(&client->dev, "out of memory.\n");
+		return -ENOMEM;
+	}
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
+
+	/*
+	 * Initialize the max6650 chip
+	 */
+	err = max6650_init_client(client);
+	if (err)
+		goto err_free;
+
+	err = sysfs_create_group(&client->dev.kobj, &max6650_attr_grp);
+	if (err)
+		goto err_free;
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (!IS_ERR(data->hwmon_dev))
+		return 0;
+
+	err = PTR_ERR(data->hwmon_dev);
+	dev_err(&client->dev, "error registering hwmon device.\n");
+	sysfs_remove_group(&client->dev.kobj, &max6650_attr_grp);
+err_free:
+	kfree(data);
+	return err;
+}
+
+static int max6650_remove(struct i2c_client *client)
+{
+	struct max6650_data *data = i2c_get_clientdata(client);
+
+	sysfs_remove_group(&client->dev.kobj, &max6650_attr_grp);
+	hwmon_device_unregister(data->hwmon_dev);
+	kfree(data);
+	return 0;
+}
+
+static int max6650_init_client(struct i2c_client *client)
+{
+	struct max6650_data *data = i2c_get_clientdata(client);
+	int config;
+	int err = -EIO;
+
+	config = i2c_smbus_read_byte_data(client, MAX6650_REG_CONFIG);
+
+	if (config < 0) {
+		dev_err(&client->dev, "Error reading config, aborting.\n");
+		return err;
+	}
+
+	switch (fan_voltage) {
+		case 0:
+			break;
+		case 5:
+			config &= ~MAX6650_CFG_V12;
+			break;
+		case 12:
+			config |= MAX6650_CFG_V12;
+			break;
+		default:
+			dev_err(&client->dev,
+				"illegal value for fan_voltage (%d)\n",
+				fan_voltage);
+	}
+
+	dev_info(&client->dev, "Fan voltage is set to %dV.\n",
+		 (config & MAX6650_CFG_V12) ? 12 : 5);
+
+	switch (prescaler) {
+		case 0:
+			break;
+		case 1:
+			config &= ~MAX6650_CFG_PRESCALER_MASK;
+			break;
+		case 2:
+			config = (config & ~MAX6650_CFG_PRESCALER_MASK)
+				 | MAX6650_CFG_PRESCALER_2;
+			break;
+		case  4:
+			config = (config & ~MAX6650_CFG_PRESCALER_MASK)
+				 | MAX6650_CFG_PRESCALER_4;
+			break;
+		case  8:
+			config = (config & ~MAX6650_CFG_PRESCALER_MASK)
+				 | MAX6650_CFG_PRESCALER_8;
+			break;
+		case 16:
+			config = (config & ~MAX6650_CFG_PRESCALER_MASK)
+				 | MAX6650_CFG_PRESCALER_16;
+			break;
+		default:
+			dev_err(&client->dev,
+				"illegal value for prescaler (%d)\n",
+				prescaler);
+	}
+
+	dev_info(&client->dev, "Prescaler is set to %d.\n",
+		 1 << (config & MAX6650_CFG_PRESCALER_MASK));
+
+	/* If mode is set to "full off", we change it to "open loop" and
+	 * set DAC to 255, which has the same effect. We do this because
+	 * there's no "full off" mode defined in hwmon specifcations.
+	 */
+
+	if ((config & MAX6650_CFG_MODE_MASK) == MAX6650_CFG_MODE_OFF) {
+		dev_dbg(&client->dev, "Change mode to open loop, full off.\n");
+		config = (config & ~MAX6650_CFG_MODE_MASK)
+			 | MAX6650_CFG_MODE_OPEN_LOOP;
+		if (i2c_smbus_write_byte_data(client, MAX6650_REG_DAC, 255)) {
+			dev_err(&client->dev, "DAC write error, aborting.\n");
+			return err;
+		}
+	}
+
+	if (i2c_smbus_write_byte_data(client, MAX6650_REG_CONFIG, config)) {
+		dev_err(&client->dev, "Config write error, aborting.\n");
+		return err;
+	}
+
+	data->config = config;
+	data->count = i2c_smbus_read_byte_data(client, MAX6650_REG_COUNT);
+
+	return 0;
+}
+
+static const u8 tach_reg[] = {
+	MAX6650_REG_TACH0,
+	MAX6650_REG_TACH1,
+	MAX6650_REG_TACH2,
+	MAX6650_REG_TACH3,
+};
+
+static struct max6650_data *max6650_update_device(struct device *dev)
+{
+	int i;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct max6650_data *data = i2c_get_clientdata(client);
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
+		data->speed = i2c_smbus_read_byte_data(client,
+						       MAX6650_REG_SPEED);
+		data->config = i2c_smbus_read_byte_data(client,
+							MAX6650_REG_CONFIG);
+		for (i = 0; i < 4; i++) {
+			data->tach[i] = i2c_smbus_read_byte_data(client,
+								 tach_reg[i]);
+		}
+		data->count = i2c_smbus_read_byte_data(client,
+							MAX6650_REG_COUNT);
+		data->dac = i2c_smbus_read_byte_data(client, MAX6650_REG_DAC);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init sensors_max6650_init(void)
+{
+	return i2c_add_driver(&max6650_driver);
+}
+
+static void __exit sensors_max6650_exit(void)
+{
+	i2c_del_driver(&max6650_driver);
+}
+
+MODULE_AUTHOR("Hans J. Koch");
+MODULE_DESCRIPTION("MAX6650 sensor driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_max6650_init);
+module_exit(sensors_max6650_exit);
diff --git a/drivers/hwmon/pc87360.c b/drivers/hwmon/pc87360.c
new file mode 100644
index 0000000..5fbfa34
--- /dev/null
+++ b/drivers/hwmon/pc87360.c
@@ -0,0 +1,1708 @@
+/*
+ *  pc87360.c - Part of lm_sensors, Linux kernel modules
+ *              for hardware monitoring
+ *  Copyright (C) 2004, 2007 Jean Delvare <khali@linux-fr.org>
+ *
+ *  Copied from smsc47m1.c:
+ *  Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *  Supports the following chips:
+ *
+ *  Chip        #vin    #fan    #pwm    #temp   devid
+ *  PC87360     -       2       2       -       0xE1
+ *  PC87363     -       2       2       -       0xE8
+ *  PC87364     -       3       3       -       0xE4
+ *  PC87365     11      3       3       2       0xE5
+ *  PC87366     11      3       3       3-4     0xE9
+ *
+ *  This driver assumes that no more than one chip is present, and one of
+ *  the standard Super-I/O addresses is used (0x2E/0x2F or 0x4E/0x4F).
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon-vid.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <asm/io.h>
+
+static u8 devid;
+static struct platform_device *pdev;
+static unsigned short extra_isa[3];
+static u8 confreg[4];
+
+static int init = 1;
+module_param(init, int, 0);
+MODULE_PARM_DESC(init,
+ "Chip initialization level:\n"
+ " 0: None\n"
+ "*1: Forcibly enable internal voltage and temperature channels, except in9\n"
+ " 2: Forcibly enable all voltage and temperature channels, except in9\n"
+ " 3: Forcibly enable all voltage and temperature channels, including in9");
+
+static unsigned short force_id;
+module_param(force_id, ushort, 0);
+MODULE_PARM_DESC(force_id, "Override the detected device ID");
+
+/*
+ * Super-I/O registers and operations
+ */
+
+#define DEV	0x07	/* Register: Logical device select */
+#define DEVID	0x20	/* Register: Device ID */
+#define ACT	0x30	/* Register: Device activation */
+#define BASE	0x60	/* Register: Base address */
+
+#define FSCM	0x09	/* Logical device: fans */
+#define VLM	0x0d	/* Logical device: voltages */
+#define TMS	0x0e	/* Logical device: temperatures */
+#define LDNI_MAX 3
+static const u8 logdev[LDNI_MAX] = { FSCM, VLM, TMS };
+
+#define LD_FAN		0
+#define LD_IN		1
+#define LD_TEMP		2
+
+static inline void superio_outb(int sioaddr, int reg, int val)
+{
+	outb(reg, sioaddr);
+	outb(val, sioaddr+1);
+}
+
+static inline int superio_inb(int sioaddr, int reg)
+{
+	outb(reg, sioaddr);
+	return inb(sioaddr+1);
+}
+
+static inline void superio_exit(int sioaddr)
+{
+	outb(0x02, sioaddr);
+	outb(0x02, sioaddr+1);
+}
+
+/*
+ * Logical devices
+ */
+
+#define PC87360_EXTENT		0x10
+#define PC87365_REG_BANK	0x09
+#define NO_BANK			0xff
+
+/*
+ * Fan registers and conversions
+ */
+
+/* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */
+#define PC87360_REG_PRESCALE(nr)	(0x00 + 2 * (nr))
+#define PC87360_REG_PWM(nr)		(0x01 + 2 * (nr))
+#define PC87360_REG_FAN_MIN(nr)		(0x06 + 3 * (nr))
+#define PC87360_REG_FAN(nr)		(0x07 + 3 * (nr))
+#define PC87360_REG_FAN_STATUS(nr)	(0x08 + 3 * (nr))
+
+#define FAN_FROM_REG(val,div)		((val) == 0 ? 0: \
+					 480000 / ((val)*(div)))
+#define FAN_TO_REG(val,div)		((val) <= 100 ? 0 : \
+					 480000 / ((val)*(div)))
+#define FAN_DIV_FROM_REG(val)		(1 << ((val >> 5) & 0x03))
+#define FAN_STATUS_FROM_REG(val)	((val) & 0x07)
+
+#define FAN_CONFIG_MONITOR(val,nr)	(((val) >> (2 + nr * 3)) & 1)
+#define FAN_CONFIG_CONTROL(val,nr)	(((val) >> (3 + nr * 3)) & 1)
+#define FAN_CONFIG_INVERT(val,nr)	(((val) >> (4 + nr * 3)) & 1)
+
+#define PWM_FROM_REG(val,inv)		((inv) ? 255 - (val) : (val))
+static inline u8 PWM_TO_REG(int val, int inv)
+{
+	if (inv)
+		val = 255 - val;
+	if (val < 0)
+		return 0;
+	if (val > 255)
+		return 255;
+	return val;
+}
+
+/*
+ * Voltage registers and conversions
+ */
+
+#define PC87365_REG_IN_CONVRATE		0x07
+#define PC87365_REG_IN_CONFIG		0x08
+#define PC87365_REG_IN			0x0B
+#define PC87365_REG_IN_MIN		0x0D
+#define PC87365_REG_IN_MAX		0x0C
+#define PC87365_REG_IN_STATUS		0x0A
+#define PC87365_REG_IN_ALARMS1		0x00
+#define PC87365_REG_IN_ALARMS2		0x01
+#define PC87365_REG_VID			0x06
+
+#define IN_FROM_REG(val,ref)		(((val) * (ref) + 128) / 256)
+#define IN_TO_REG(val,ref)		((val) < 0 ? 0 : \
+					 (val)*256 >= (ref)*255 ? 255: \
+					 ((val) * 256 + (ref)/2) / (ref))
+
+/*
+ * Temperature registers and conversions
+ */
+
+#define PC87365_REG_TEMP_CONFIG		0x08
+#define PC87365_REG_TEMP		0x0B
+#define PC87365_REG_TEMP_MIN		0x0D
+#define PC87365_REG_TEMP_MAX		0x0C
+#define PC87365_REG_TEMP_CRIT		0x0E
+#define PC87365_REG_TEMP_STATUS		0x0A
+#define PC87365_REG_TEMP_ALARMS		0x00
+
+#define TEMP_FROM_REG(val)		((val) * 1000)
+#define TEMP_TO_REG(val)		((val) < -55000 ? -55 : \
+					 (val) > 127000 ? 127 : \
+					 (val) < 0 ? ((val) - 500) / 1000 : \
+					 ((val) + 500) / 1000)
+
+/*
+ * Device data
+ */
+
+struct pc87360_data {
+	const char *name;
+	struct device *hwmon_dev;
+	struct mutex lock;
+	struct mutex update_lock;
+	char valid;		/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+
+	int address[3];
+
+	u8 fannr, innr, tempnr;
+
+	u8 fan[3];		/* Register value */
+	u8 fan_min[3];		/* Register value */
+	u8 fan_status[3];	/* Register value */
+	u8 pwm[3];		/* Register value */
+	u16 fan_conf;		/* Configuration register values, combined */
+
+	u16 in_vref;		/* 1 mV/bit */
+	u8 in[14];		/* Register value */
+	u8 in_min[14];		/* Register value */
+	u8 in_max[14];		/* Register value */
+	u8 in_crit[3];		/* Register value */
+	u8 in_status[14];	/* Register value */
+	u16 in_alarms;		/* Register values, combined, masked */
+	u8 vid_conf;		/* Configuration register value */
+	u8 vrm;
+	u8 vid;			/* Register value */
+
+	s8 temp[3];		/* Register value */
+	s8 temp_min[3];		/* Register value */
+	s8 temp_max[3];		/* Register value */
+	s8 temp_crit[3];	/* Register value */
+	u8 temp_status[3];	/* Register value */
+	u8 temp_alarms;		/* Register value, masked */
+};
+
+/*
+ * Functions declaration
+ */
+
+static int pc87360_probe(struct platform_device *pdev);
+static int __devexit pc87360_remove(struct platform_device *pdev);
+
+static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
+			      u8 reg);
+static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
+				u8 reg, u8 value);
+static void pc87360_init_device(struct platform_device *pdev,
+				int use_thermistors);
+static struct pc87360_data *pc87360_update_device(struct device *dev);
+
+/*
+ * Driver data
+ */
+
+static struct platform_driver pc87360_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= "pc87360",
+	},
+	.probe		= pc87360_probe,
+	.remove		= __devexit_p(pc87360_remove),
+};
+
+/*
+ * Sysfs stuff
+ */
+
+static ssize_t show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = pc87360_update_device(dev);
+	return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
+		       FAN_DIV_FROM_REG(data->fan_status[attr->index])));
+}
+static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = pc87360_update_device(dev);
+	return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
+		       FAN_DIV_FROM_REG(data->fan_status[attr->index])));
+}
+static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = pc87360_update_device(dev);
+	return sprintf(buf, "%u\n",
+		       FAN_DIV_FROM_REG(data->fan_status[attr->index]));
+}
+static ssize_t show_fan_status(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = pc87360_update_device(dev);
+	return sprintf(buf, "%u\n",
+		       FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
+}
+static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf,
+	size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = dev_get_drvdata(dev);
+	long fan_min = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[attr->index]));
+
+	/* If it wouldn't fit, change clock divisor */
+	while (fan_min > 255
+	    && (data->fan_status[attr->index] & 0x60) != 0x60) {
+		fan_min >>= 1;
+		data->fan[attr->index] >>= 1;
+		data->fan_status[attr->index] += 0x20;
+	}
+	data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
+	pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(attr->index),
+			    data->fan_min[attr->index]);
+
+	/* Write new divider, preserve alarm bits */
+	pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(attr->index),
+			    data->fan_status[attr->index] & 0xF9);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static struct sensor_device_attribute fan_input[] = {
+	SENSOR_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0),
+	SENSOR_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1),
+	SENSOR_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2),
+};
+static struct sensor_device_attribute fan_status[] = {
+	SENSOR_ATTR(fan1_status, S_IRUGO, show_fan_status, NULL, 0),
+	SENSOR_ATTR(fan2_status, S_IRUGO, show_fan_status, NULL, 1),
+	SENSOR_ATTR(fan3_status, S_IRUGO, show_fan_status, NULL, 2),
+};
+static struct sensor_device_attribute fan_div[] = {
+	SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
+	SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
+	SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
+};
+static struct sensor_device_attribute fan_min[] = {
+	SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 0),
+	SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 1),
+	SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 2),
+};
+
+#define FAN_UNIT_ATTRS(X)	\
+	&fan_input[X].dev_attr.attr,	\
+	&fan_status[X].dev_attr.attr,	\
+	&fan_div[X].dev_attr.attr,	\
+	&fan_min[X].dev_attr.attr
+
+static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = pc87360_update_device(dev);
+	return sprintf(buf, "%u\n",
+		       PWM_FROM_REG(data->pwm[attr->index],
+				    FAN_CONFIG_INVERT(data->fan_conf,
+						      attr->index)));
+}
+static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf,
+	size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = dev_get_drvdata(dev);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->pwm[attr->index] = PWM_TO_REG(val,
+			      FAN_CONFIG_INVERT(data->fan_conf, attr->index));
+	pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
+			    data->pwm[attr->index]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static struct sensor_device_attribute pwm[] = {
+	SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0),
+	SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1),
+	SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2),
+};
+
+static struct attribute * pc8736x_fan_attr_array[] = {
+	FAN_UNIT_ATTRS(0),
+	FAN_UNIT_ATTRS(1),
+	FAN_UNIT_ATTRS(2),
+	&pwm[0].dev_attr.attr,
+	&pwm[1].dev_attr.attr,
+	&pwm[2].dev_attr.attr,
+	NULL
+};
+static const struct attribute_group pc8736x_fan_group = {
+	.attrs = pc8736x_fan_attr_array,
+};
+
+static ssize_t show_in_input(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = pc87360_update_device(dev);
+	return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
+		       data->in_vref));
+}
+static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = pc87360_update_device(dev);
+	return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
+		       data->in_vref));
+}
+static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = pc87360_update_device(dev);
+	return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
+		       data->in_vref));
+}
+static ssize_t show_in_status(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = pc87360_update_device(dev);
+	return sprintf(buf, "%u\n", data->in_status[attr->index]);
+}
+static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf,
+	size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = dev_get_drvdata(dev);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
+	pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
+			    data->in_min[attr->index]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf,
+	size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = dev_get_drvdata(dev);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_max[attr->index] = IN_TO_REG(val,
+			       data->in_vref);
+	pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
+			    data->in_max[attr->index]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static struct sensor_device_attribute in_input[] = {
+	SENSOR_ATTR(in0_input, S_IRUGO, show_in_input, NULL, 0),
+	SENSOR_ATTR(in1_input, S_IRUGO, show_in_input, NULL, 1),
+	SENSOR_ATTR(in2_input, S_IRUGO, show_in_input, NULL, 2),
+	SENSOR_ATTR(in3_input, S_IRUGO, show_in_input, NULL, 3),
+	SENSOR_ATTR(in4_input, S_IRUGO, show_in_input, NULL, 4),
+	SENSOR_ATTR(in5_input, S_IRUGO, show_in_input, NULL, 5),
+	SENSOR_ATTR(in6_input, S_IRUGO, show_in_input, NULL, 6),
+	SENSOR_ATTR(in7_input, S_IRUGO, show_in_input, NULL, 7),
+	SENSOR_ATTR(in8_input, S_IRUGO, show_in_input, NULL, 8),
+	SENSOR_ATTR(in9_input, S_IRUGO, show_in_input, NULL, 9),
+	SENSOR_ATTR(in10_input, S_IRUGO, show_in_input, NULL, 10),
+};
+static struct sensor_device_attribute in_status[] = {
+	SENSOR_ATTR(in0_status, S_IRUGO, show_in_status, NULL, 0),
+	SENSOR_ATTR(in1_status, S_IRUGO, show_in_status, NULL, 1),
+	SENSOR_ATTR(in2_status, S_IRUGO, show_in_status, NULL, 2),
+	SENSOR_ATTR(in3_status, S_IRUGO, show_in_status, NULL, 3),
+	SENSOR_ATTR(in4_status, S_IRUGO, show_in_status, NULL, 4),
+	SENSOR_ATTR(in5_status, S_IRUGO, show_in_status, NULL, 5),
+	SENSOR_ATTR(in6_status, S_IRUGO, show_in_status, NULL, 6),
+	SENSOR_ATTR(in7_status, S_IRUGO, show_in_status, NULL, 7),
+	SENSOR_ATTR(in8_status, S_IRUGO, show_in_status, NULL, 8),
+	SENSOR_ATTR(in9_status, S_IRUGO, show_in_status, NULL, 9),
+	SENSOR_ATTR(in10_status, S_IRUGO, show_in_status, NULL, 10),
+};
+static struct sensor_device_attribute in_min[] = {
+	SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 0),
+	SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 1),
+	SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 2),
+	SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 3),
+	SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 4),
+	SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 5),
+	SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 6),
+	SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 7),
+	SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 8),
+	SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 9),
+	SENSOR_ATTR(in10_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 10),
+};
+static struct sensor_device_attribute in_max[] = {
+	SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 0),
+	SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 1),
+	SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 2),
+	SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 3),
+	SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 4),
+	SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 5),
+	SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 6),
+	SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 7),
+	SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 8),
+	SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 9),
+	SENSOR_ATTR(in10_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 10),
+};
+
+/* (temp & vin) channel status register alarm bits (pdf sec.11.5.12) */
+#define CHAN_ALM_MIN	0x02	/* min limit crossed */
+#define CHAN_ALM_MAX	0x04	/* max limit exceeded */
+#define TEMP_ALM_CRIT	0x08	/* temp crit exceeded (temp only) */
+
+/* show_in_min/max_alarm() reads data from the per-channel status
+   register (sec 11.5.12), not the vin event status registers (sec
+   11.5.2) that (legacy) show_in_alarm() resds (via data->in_alarms) */
+
+static ssize_t show_in_min_alarm(struct device *dev,
+			struct device_attribute *devattr, char *buf)
+{
+	struct pc87360_data *data = pc87360_update_device(dev);
+	unsigned nr = to_sensor_dev_attr(devattr)->index;
+
+	return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
+}
+static ssize_t show_in_max_alarm(struct device *dev,
+			struct device_attribute *devattr, char *buf)
+{
+	struct pc87360_data *data = pc87360_update_device(dev);
+	unsigned nr = to_sensor_dev_attr(devattr)->index;
+
+	return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
+}
+
+static struct sensor_device_attribute in_min_alarm[] = {
+	SENSOR_ATTR(in0_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 0),
+	SENSOR_ATTR(in1_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 1),
+	SENSOR_ATTR(in2_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 2),
+	SENSOR_ATTR(in3_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 3),
+	SENSOR_ATTR(in4_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 4),
+	SENSOR_ATTR(in5_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 5),
+	SENSOR_ATTR(in6_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 6),
+	SENSOR_ATTR(in7_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 7),
+	SENSOR_ATTR(in8_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 8),
+	SENSOR_ATTR(in9_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 9),
+	SENSOR_ATTR(in10_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 10),
+};
+static struct sensor_device_attribute in_max_alarm[] = {
+	SENSOR_ATTR(in0_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 0),
+	SENSOR_ATTR(in1_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 1),
+	SENSOR_ATTR(in2_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 2),
+	SENSOR_ATTR(in3_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 3),
+	SENSOR_ATTR(in4_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 4),
+	SENSOR_ATTR(in5_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 5),
+	SENSOR_ATTR(in6_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 6),
+	SENSOR_ATTR(in7_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 7),
+	SENSOR_ATTR(in8_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 8),
+	SENSOR_ATTR(in9_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 9),
+	SENSOR_ATTR(in10_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 10),
+};
+
+#define VIN_UNIT_ATTRS(X) \
+	&in_input[X].dev_attr.attr,	\
+	&in_status[X].dev_attr.attr,	\
+	&in_min[X].dev_attr.attr,	\
+	&in_max[X].dev_attr.attr,	\
+	&in_min_alarm[X].dev_attr.attr,	\
+	&in_max_alarm[X].dev_attr.attr
+
+static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct pc87360_data *data = pc87360_update_device(dev);
+	return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
+}
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
+
+static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct pc87360_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%u\n", data->vrm);
+}
+static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct pc87360_data *data = dev_get_drvdata(dev);
+	data->vrm = simple_strtoul(buf, NULL, 10);
+	return count;
+}
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
+
+static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct pc87360_data *data = pc87360_update_device(dev);
+	return sprintf(buf, "%u\n", data->in_alarms);
+}
+static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
+
+static struct attribute *pc8736x_vin_attr_array[] = {
+	VIN_UNIT_ATTRS(0),
+	VIN_UNIT_ATTRS(1),
+	VIN_UNIT_ATTRS(2),
+	VIN_UNIT_ATTRS(3),
+	VIN_UNIT_ATTRS(4),
+	VIN_UNIT_ATTRS(5),
+	VIN_UNIT_ATTRS(6),
+	VIN_UNIT_ATTRS(7),
+	VIN_UNIT_ATTRS(8),
+	VIN_UNIT_ATTRS(9),
+	VIN_UNIT_ATTRS(10),
+	&dev_attr_cpu0_vid.attr,
+	&dev_attr_vrm.attr,
+	&dev_attr_alarms_in.attr,
+	NULL
+};
+static const struct attribute_group pc8736x_vin_group = {
+	.attrs = pc8736x_vin_attr_array,
+};
+
+static ssize_t show_therm_input(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = pc87360_update_device(dev);
+	return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
+		       data->in_vref));
+}
+static ssize_t show_therm_min(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = pc87360_update_device(dev);
+	return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
+		       data->in_vref));
+}
+static ssize_t show_therm_max(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = pc87360_update_device(dev);
+	return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
+		       data->in_vref));
+}
+static ssize_t show_therm_crit(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = pc87360_update_device(dev);
+	return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
+		       data->in_vref));
+}
+static ssize_t show_therm_status(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = pc87360_update_device(dev);
+	return sprintf(buf, "%u\n", data->in_status[attr->index]);
+}
+static ssize_t set_therm_min(struct device *dev, struct device_attribute *devattr, const char *buf,
+	size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = dev_get_drvdata(dev);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
+	pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
+			    data->in_min[attr->index]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t set_therm_max(struct device *dev, struct device_attribute *devattr, const char *buf,
+	size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = dev_get_drvdata(dev);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
+	pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
+			    data->in_max[attr->index]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
+	size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = dev_get_drvdata(dev);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
+	pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
+			    data->in_crit[attr->index-11]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+/* the +11 term below reflects the fact that VLM units 11,12,13 are
+   used in the chip to measure voltage across the thermistors
+*/
+static struct sensor_device_attribute therm_input[] = {
+	SENSOR_ATTR(temp4_input, S_IRUGO, show_therm_input, NULL, 0+11),
+	SENSOR_ATTR(temp5_input, S_IRUGO, show_therm_input, NULL, 1+11),
+	SENSOR_ATTR(temp6_input, S_IRUGO, show_therm_input, NULL, 2+11),
+};
+static struct sensor_device_attribute therm_status[] = {
+	SENSOR_ATTR(temp4_status, S_IRUGO, show_therm_status, NULL, 0+11),
+	SENSOR_ATTR(temp5_status, S_IRUGO, show_therm_status, NULL, 1+11),
+	SENSOR_ATTR(temp6_status, S_IRUGO, show_therm_status, NULL, 2+11),
+};
+static struct sensor_device_attribute therm_min[] = {
+	SENSOR_ATTR(temp4_min, S_IRUGO | S_IWUSR,
+		    show_therm_min, set_therm_min, 0+11),
+	SENSOR_ATTR(temp5_min, S_IRUGO | S_IWUSR,
+		    show_therm_min, set_therm_min, 1+11),
+	SENSOR_ATTR(temp6_min, S_IRUGO | S_IWUSR,
+		    show_therm_min, set_therm_min, 2+11),
+};
+static struct sensor_device_attribute therm_max[] = {
+	SENSOR_ATTR(temp4_max, S_IRUGO | S_IWUSR,
+		    show_therm_max, set_therm_max, 0+11),
+	SENSOR_ATTR(temp5_max, S_IRUGO | S_IWUSR,
+		    show_therm_max, set_therm_max, 1+11),
+	SENSOR_ATTR(temp6_max, S_IRUGO | S_IWUSR,
+		    show_therm_max, set_therm_max, 2+11),
+};
+static struct sensor_device_attribute therm_crit[] = {
+	SENSOR_ATTR(temp4_crit, S_IRUGO | S_IWUSR,
+		    show_therm_crit, set_therm_crit, 0+11),
+	SENSOR_ATTR(temp5_crit, S_IRUGO | S_IWUSR,
+		    show_therm_crit, set_therm_crit, 1+11),
+	SENSOR_ATTR(temp6_crit, S_IRUGO | S_IWUSR,
+		    show_therm_crit, set_therm_crit, 2+11),
+};
+
+/* show_therm_min/max_alarm() reads data from the per-channel voltage
+   status register (sec 11.5.12) */
+
+static ssize_t show_therm_min_alarm(struct device *dev,
+				struct device_attribute *devattr, char *buf)
+{
+	struct pc87360_data *data = pc87360_update_device(dev);
+	unsigned nr = to_sensor_dev_attr(devattr)->index;
+
+	return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
+}
+static ssize_t show_therm_max_alarm(struct device *dev,
+				struct device_attribute *devattr, char *buf)
+{
+	struct pc87360_data *data = pc87360_update_device(dev);
+	unsigned nr = to_sensor_dev_attr(devattr)->index;
+
+	return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
+}
+static ssize_t show_therm_crit_alarm(struct device *dev,
+				struct device_attribute *devattr, char *buf)
+{
+	struct pc87360_data *data = pc87360_update_device(dev);
+	unsigned nr = to_sensor_dev_attr(devattr)->index;
+
+	return sprintf(buf, "%u\n", !!(data->in_status[nr] & TEMP_ALM_CRIT));
+}
+
+static struct sensor_device_attribute therm_min_alarm[] = {
+	SENSOR_ATTR(temp4_min_alarm, S_IRUGO,
+		    show_therm_min_alarm, NULL, 0+11),
+	SENSOR_ATTR(temp5_min_alarm, S_IRUGO,
+		    show_therm_min_alarm, NULL, 1+11),
+	SENSOR_ATTR(temp6_min_alarm, S_IRUGO,
+		    show_therm_min_alarm, NULL, 2+11),
+};
+static struct sensor_device_attribute therm_max_alarm[] = {
+	SENSOR_ATTR(temp4_max_alarm, S_IRUGO,
+		    show_therm_max_alarm, NULL, 0+11),
+	SENSOR_ATTR(temp5_max_alarm, S_IRUGO,
+		    show_therm_max_alarm, NULL, 1+11),
+	SENSOR_ATTR(temp6_max_alarm, S_IRUGO,
+		    show_therm_max_alarm, NULL, 2+11),
+};
+static struct sensor_device_attribute therm_crit_alarm[] = {
+	SENSOR_ATTR(temp4_crit_alarm, S_IRUGO,
+		    show_therm_crit_alarm, NULL, 0+11),
+	SENSOR_ATTR(temp5_crit_alarm, S_IRUGO,
+		    show_therm_crit_alarm, NULL, 1+11),
+	SENSOR_ATTR(temp6_crit_alarm, S_IRUGO,
+		    show_therm_crit_alarm, NULL, 2+11),
+};
+
+#define THERM_UNIT_ATTRS(X) \
+	&therm_input[X].dev_attr.attr,	\
+	&therm_status[X].dev_attr.attr,	\
+	&therm_min[X].dev_attr.attr,	\
+	&therm_max[X].dev_attr.attr,	\
+	&therm_crit[X].dev_attr.attr,	\
+	&therm_min_alarm[X].dev_attr.attr, \
+	&therm_max_alarm[X].dev_attr.attr, \
+	&therm_crit_alarm[X].dev_attr.attr
+
+static struct attribute * pc8736x_therm_attr_array[] = {
+	THERM_UNIT_ATTRS(0),
+	THERM_UNIT_ATTRS(1),
+	THERM_UNIT_ATTRS(2),
+	NULL
+};
+static const struct attribute_group pc8736x_therm_group = {
+	.attrs = pc8736x_therm_attr_array,
+};
+
+static ssize_t show_temp_input(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = pc87360_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
+}
+static ssize_t show_temp_min(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = pc87360_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
+}
+static ssize_t show_temp_max(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = pc87360_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
+}
+static ssize_t show_temp_crit(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = pc87360_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[attr->index]));
+}
+static ssize_t show_temp_status(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = pc87360_update_device(dev);
+	return sprintf(buf, "%d\n", data->temp_status[attr->index]);
+}
+static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr, const char *buf,
+	size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = dev_get_drvdata(dev);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_min[attr->index] = TEMP_TO_REG(val);
+	pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
+			    data->temp_min[attr->index]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf,
+	size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = dev_get_drvdata(dev);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_max[attr->index] = TEMP_TO_REG(val);
+	pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
+			    data->temp_max[attr->index]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
+	size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87360_data *data = dev_get_drvdata(dev);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_crit[attr->index] = TEMP_TO_REG(val);
+	pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
+			    data->temp_crit[attr->index]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static struct sensor_device_attribute temp_input[] = {
+	SENSOR_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0),
+	SENSOR_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1),
+	SENSOR_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2),
+};
+static struct sensor_device_attribute temp_status[] = {
+	SENSOR_ATTR(temp1_status, S_IRUGO, show_temp_status, NULL, 0),
+	SENSOR_ATTR(temp2_status, S_IRUGO, show_temp_status, NULL, 1),
+	SENSOR_ATTR(temp3_status, S_IRUGO, show_temp_status, NULL, 2),
+};
+static struct sensor_device_attribute temp_min[] = {
+	SENSOR_ATTR(temp1_min, S_IRUGO | S_IWUSR,
+		    show_temp_min, set_temp_min, 0),
+	SENSOR_ATTR(temp2_min, S_IRUGO | S_IWUSR,
+		    show_temp_min, set_temp_min, 1),
+	SENSOR_ATTR(temp3_min, S_IRUGO | S_IWUSR,
+		    show_temp_min, set_temp_min, 2),
+};
+static struct sensor_device_attribute temp_max[] = {
+	SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR,
+		    show_temp_max, set_temp_max, 0),
+	SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR,
+		    show_temp_max, set_temp_max, 1),
+	SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR,
+		    show_temp_max, set_temp_max, 2),
+};
+static struct sensor_device_attribute temp_crit[] = {
+	SENSOR_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
+		    show_temp_crit, set_temp_crit, 0),
+	SENSOR_ATTR(temp2_crit, S_IRUGO | S_IWUSR,
+		    show_temp_crit, set_temp_crit, 1),
+	SENSOR_ATTR(temp3_crit, S_IRUGO | S_IWUSR,
+		    show_temp_crit, set_temp_crit, 2),
+};
+
+static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct pc87360_data *data = pc87360_update_device(dev);
+	return sprintf(buf, "%u\n", data->temp_alarms);
+}
+static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
+
+/* show_temp_min/max_alarm() reads data from the per-channel status
+   register (sec 12.3.7), not the temp event status registers (sec
+   12.3.2) that show_temp_alarm() reads (via data->temp_alarms) */
+
+static ssize_t show_temp_min_alarm(struct device *dev,
+			struct device_attribute *devattr, char *buf)
+{
+	struct pc87360_data *data = pc87360_update_device(dev);
+	unsigned nr = to_sensor_dev_attr(devattr)->index;
+
+	return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MIN));
+}
+static ssize_t show_temp_max_alarm(struct device *dev,
+			struct device_attribute *devattr, char *buf)
+{
+	struct pc87360_data *data = pc87360_update_device(dev);
+	unsigned nr = to_sensor_dev_attr(devattr)->index;
+
+	return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MAX));
+}
+static ssize_t show_temp_crit_alarm(struct device *dev,
+			struct device_attribute *devattr, char *buf)
+{
+	struct pc87360_data *data = pc87360_update_device(dev);
+	unsigned nr = to_sensor_dev_attr(devattr)->index;
+
+	return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_ALM_CRIT));
+}
+
+static struct sensor_device_attribute temp_min_alarm[] = {
+	SENSOR_ATTR(temp1_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 0),
+	SENSOR_ATTR(temp2_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 1),
+	SENSOR_ATTR(temp3_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 2),
+};
+static struct sensor_device_attribute temp_max_alarm[] = {
+	SENSOR_ATTR(temp1_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 0),
+	SENSOR_ATTR(temp2_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 1),
+	SENSOR_ATTR(temp3_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 2),
+};
+static struct sensor_device_attribute temp_crit_alarm[] = {
+	SENSOR_ATTR(temp1_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 0),
+	SENSOR_ATTR(temp2_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 1),
+	SENSOR_ATTR(temp3_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 2),
+};
+
+#define TEMP_FAULT	0x40	/* open diode */
+static ssize_t show_temp_fault(struct device *dev,
+			struct device_attribute *devattr, char *buf)
+{
+	struct pc87360_data *data = pc87360_update_device(dev);
+	unsigned nr = to_sensor_dev_attr(devattr)->index;
+
+	return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_FAULT));
+}
+static struct sensor_device_attribute temp_fault[] = {
+	SENSOR_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0),
+	SENSOR_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1),
+	SENSOR_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2),
+};
+
+#define TEMP_UNIT_ATTRS(X) \
+	&temp_input[X].dev_attr.attr,	\
+	&temp_status[X].dev_attr.attr,	\
+	&temp_min[X].dev_attr.attr,	\
+	&temp_max[X].dev_attr.attr,	\
+	&temp_crit[X].dev_attr.attr,	\
+	&temp_min_alarm[X].dev_attr.attr, \
+	&temp_max_alarm[X].dev_attr.attr, \
+	&temp_crit_alarm[X].dev_attr.attr, \
+	&temp_fault[X].dev_attr.attr
+
+static struct attribute * pc8736x_temp_attr_array[] = {
+	TEMP_UNIT_ATTRS(0),
+	TEMP_UNIT_ATTRS(1),
+	TEMP_UNIT_ATTRS(2),
+	/* include the few miscellaneous atts here */
+	&dev_attr_alarms_temp.attr,
+	NULL
+};
+static const struct attribute_group pc8736x_temp_group = {
+	.attrs = pc8736x_temp_attr_array,
+};
+
+static ssize_t show_name(struct device *dev,
+			struct device_attribute *devattr, char *buf)
+{
+	struct pc87360_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%s\n", data->name);
+}
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+
+/*
+ * Device detection, registration and update
+ */
+
+static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses)
+{
+	u16 val;
+	int i;
+	int nrdev; /* logical device count */
+
+	/* No superio_enter */
+
+	/* Identify device */
+	val = force_id ? force_id : superio_inb(sioaddr, DEVID);
+	switch (val) {
+	case 0xE1: /* PC87360 */
+	case 0xE8: /* PC87363 */
+	case 0xE4: /* PC87364 */
+		nrdev = 1;
+		break;
+	case 0xE5: /* PC87365 */
+	case 0xE9: /* PC87366 */
+		nrdev = 3;
+		break;
+	default:
+		superio_exit(sioaddr);
+		return -ENODEV;
+	}
+	/* Remember the device id */
+	*devid = val;
+
+	for (i = 0; i < nrdev; i++) {
+		/* select logical device */
+		superio_outb(sioaddr, DEV, logdev[i]);
+
+		val = superio_inb(sioaddr, ACT);
+		if (!(val & 0x01)) {
+			printk(KERN_INFO "pc87360: Device 0x%02x not "
+			       "activated\n", logdev[i]);
+			continue;
+		}
+
+		val = (superio_inb(sioaddr, BASE) << 8)
+		    | superio_inb(sioaddr, BASE + 1);
+		if (!val) {
+			printk(KERN_INFO "pc87360: Base address not set for "
+			       "device 0x%02x\n", logdev[i]);
+			continue;
+		}
+
+		addresses[i] = val;
+
+		if (i==0) { /* Fans */
+			confreg[0] = superio_inb(sioaddr, 0xF0);
+			confreg[1] = superio_inb(sioaddr, 0xF1);
+
+#ifdef DEBUG
+			printk(KERN_DEBUG "pc87360: Fan 1: mon=%d "
+			       "ctrl=%d inv=%d\n", (confreg[0]>>2)&1,
+			       (confreg[0]>>3)&1, (confreg[0]>>4)&1);
+			printk(KERN_DEBUG "pc87360: Fan 2: mon=%d "
+			       "ctrl=%d inv=%d\n", (confreg[0]>>5)&1,
+			       (confreg[0]>>6)&1, (confreg[0]>>7)&1);
+			printk(KERN_DEBUG "pc87360: Fan 3: mon=%d "
+			       "ctrl=%d inv=%d\n", confreg[1]&1,
+			       (confreg[1]>>1)&1, (confreg[1]>>2)&1);
+#endif
+		} else if (i==1) { /* Voltages */
+			/* Are we using thermistors? */
+			if (*devid == 0xE9) { /* PC87366 */
+				/* These registers are not logical-device
+				   specific, just that we won't need them if
+				   we don't use the VLM device */
+				confreg[2] = superio_inb(sioaddr, 0x2B);
+				confreg[3] = superio_inb(sioaddr, 0x25);
+
+				if (confreg[2] & 0x40) {
+					printk(KERN_INFO "pc87360: Using "
+					       "thermistors for temperature "
+					       "monitoring\n");
+				}
+				if (confreg[3] & 0xE0) {
+					printk(KERN_INFO "pc87360: VID "
+					       "inputs routed (mode %u)\n",
+					       confreg[3] >> 5);
+				}
+			}
+		}
+	}
+
+	superio_exit(sioaddr);
+	return 0;
+}
+
+static int __devinit pc87360_probe(struct platform_device *pdev)
+{
+	int i;
+	struct pc87360_data *data;
+	int err = 0;
+	const char *name = "pc87360";
+	int use_thermistors = 0;
+	struct device *dev = &pdev->dev;
+
+	if (!(data = kzalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
+		return -ENOMEM;
+
+	data->fannr = 2;
+	data->innr = 0;
+	data->tempnr = 0;
+
+	switch (devid) {
+	case 0xe8:
+		name = "pc87363";
+		break;
+	case 0xe4:
+		name = "pc87364";
+		data->fannr = 3;
+		break;
+	case 0xe5:
+		name = "pc87365";
+		data->fannr = extra_isa[0] ? 3 : 0;
+		data->innr = extra_isa[1] ? 11 : 0;
+		data->tempnr = extra_isa[2] ? 2 : 0;
+		break;
+	case 0xe9:
+		name = "pc87366";
+		data->fannr = extra_isa[0] ? 3 : 0;
+		data->innr = extra_isa[1] ? 14 : 0;
+		data->tempnr = extra_isa[2] ? 3 : 0;
+		break;
+	}
+
+	data->name = name;
+	data->valid = 0;
+	mutex_init(&data->lock);
+	mutex_init(&data->update_lock);
+	platform_set_drvdata(pdev, data);
+
+	for (i = 0; i < LDNI_MAX; i++) {
+		if (((data->address[i] = extra_isa[i]))
+		 && !request_region(extra_isa[i], PC87360_EXTENT,
+		 		    pc87360_driver.driver.name)) {
+			dev_err(dev, "Region 0x%x-0x%x already "
+				"in use!\n", extra_isa[i],
+				extra_isa[i]+PC87360_EXTENT-1);
+			for (i--; i >= 0; i--)
+				release_region(extra_isa[i], PC87360_EXTENT);
+			err = -EBUSY;
+			goto ERROR1;
+		}
+	}
+
+	/* Retrieve the fans configuration from Super-I/O space */
+	if (data->fannr)
+		data->fan_conf = confreg[0] | (confreg[1] << 8);
+
+	/* Use the correct reference voltage
+	   Unless both the VLM and the TMS logical devices agree to
+	   use an external Vref, the internal one is used. */
+	if (data->innr) {
+		i = pc87360_read_value(data, LD_IN, NO_BANK,
+				       PC87365_REG_IN_CONFIG);
+		if (data->tempnr) {
+			i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
+						PC87365_REG_TEMP_CONFIG);
+		}
+		data->in_vref = (i&0x02) ? 3025 : 2966;
+		dev_dbg(dev, "Using %s reference voltage\n",
+			(i&0x02) ? "external" : "internal");
+
+		data->vid_conf = confreg[3];
+		data->vrm = vid_which_vrm();
+	}
+
+	/* Fan clock dividers may be needed before any data is read */
+	for (i = 0; i < data->fannr; i++) {
+		if (FAN_CONFIG_MONITOR(data->fan_conf, i))
+			data->fan_status[i] = pc87360_read_value(data,
+					      LD_FAN, NO_BANK,
+					      PC87360_REG_FAN_STATUS(i));
+	}
+
+	if (init > 0) {
+		if (devid == 0xe9 && data->address[1]) /* PC87366 */
+			use_thermistors = confreg[2] & 0x40;
+
+		pc87360_init_device(pdev, use_thermistors);
+	}
+
+	/* Register all-or-nothing sysfs groups */
+
+	if (data->innr &&
+	    (err = sysfs_create_group(&dev->kobj,
+				      &pc8736x_vin_group)))
+		goto ERROR3;
+
+	if (data->innr == 14 &&
+	    (err = sysfs_create_group(&dev->kobj,
+				      &pc8736x_therm_group)))
+		goto ERROR3;
+
+	/* create device attr-files for varying sysfs groups */
+
+	if (data->tempnr) {
+		for (i = 0; i < data->tempnr; i++) {
+			if ((err = device_create_file(dev,
+					&temp_input[i].dev_attr))
+			    || (err = device_create_file(dev,
+					&temp_min[i].dev_attr))
+			    || (err = device_create_file(dev,
+					&temp_max[i].dev_attr))
+			    || (err = device_create_file(dev,
+					&temp_crit[i].dev_attr))
+			    || (err = device_create_file(dev,
+					&temp_status[i].dev_attr))
+			    || (err = device_create_file(dev,
+					&temp_min_alarm[i].dev_attr))
+			    || (err = device_create_file(dev,
+					&temp_max_alarm[i].dev_attr))
+			    || (err = device_create_file(dev,
+					&temp_crit_alarm[i].dev_attr))
+			    || (err = device_create_file(dev,
+					&temp_fault[i].dev_attr)))
+				goto ERROR3;
+		}
+		if ((err = device_create_file(dev, &dev_attr_alarms_temp)))
+			goto ERROR3;
+	}
+
+	for (i = 0; i < data->fannr; i++) {
+		if (FAN_CONFIG_MONITOR(data->fan_conf, i)
+		    && ((err = device_create_file(dev,
+					&fan_input[i].dev_attr))
+			|| (err = device_create_file(dev,
+					&fan_min[i].dev_attr))
+			|| (err = device_create_file(dev,
+					&fan_div[i].dev_attr))
+			|| (err = device_create_file(dev,
+					&fan_status[i].dev_attr))))
+			goto ERROR3;
+
+		if (FAN_CONFIG_CONTROL(data->fan_conf, i)
+		    && (err = device_create_file(dev, &pwm[i].dev_attr)))
+			goto ERROR3;
+	}
+
+	if ((err = device_create_file(dev, &dev_attr_name)))
+		goto ERROR3;
+
+	data->hwmon_dev = hwmon_device_register(dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto ERROR3;
+	}
+	return 0;
+
+ERROR3:
+	device_remove_file(dev, &dev_attr_name);
+	/* can still remove groups whose members were added individually */
+	sysfs_remove_group(&dev->kobj, &pc8736x_temp_group);
+	sysfs_remove_group(&dev->kobj, &pc8736x_fan_group);
+	sysfs_remove_group(&dev->kobj, &pc8736x_therm_group);
+	sysfs_remove_group(&dev->kobj, &pc8736x_vin_group);
+	for (i = 0; i < 3; i++) {
+		if (data->address[i]) {
+			release_region(data->address[i], PC87360_EXTENT);
+		}
+	}
+ERROR1:
+	kfree(data);
+	return err;
+}
+
+static int __devexit pc87360_remove(struct platform_device *pdev)
+{
+	struct pc87360_data *data = platform_get_drvdata(pdev);
+	int i;
+
+	hwmon_device_unregister(data->hwmon_dev);
+
+	device_remove_file(&pdev->dev, &dev_attr_name);
+	sysfs_remove_group(&pdev->dev.kobj, &pc8736x_temp_group);
+	sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_group);
+	sysfs_remove_group(&pdev->dev.kobj, &pc8736x_therm_group);
+	sysfs_remove_group(&pdev->dev.kobj, &pc8736x_vin_group);
+
+	for (i = 0; i < 3; i++) {
+		if (data->address[i]) {
+			release_region(data->address[i], PC87360_EXTENT);
+		}
+	}
+	kfree(data);
+
+	return 0;
+}
+
+/* ldi is the logical device index
+   bank is for voltages and temperatures only */
+static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
+			      u8 reg)
+{
+	int res;
+
+	mutex_lock(&(data->lock));
+	if (bank != NO_BANK)
+		outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
+	res = inb_p(data->address[ldi] + reg);
+	mutex_unlock(&(data->lock));
+
+	return res;
+}
+
+static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
+				u8 reg, u8 value)
+{
+	mutex_lock(&(data->lock));
+	if (bank != NO_BANK)
+		outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
+	outb_p(value, data->address[ldi] + reg);
+	mutex_unlock(&(data->lock));
+}
+
+/* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */
+#define CHAN_CNVRTD	0x80	/* new data ready */
+#define CHAN_ENA	0x01	/* enabled channel (temp or vin) */
+#define CHAN_ALM_ENA	0x10	/* propagate to alarms-reg ?? (chk val!) */
+#define CHAN_READY	(CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */
+
+#define TEMP_OTS_OE	0x20	/* OTS Output Enable */
+#define VIN_RW1C_MASK	(CHAN_READY|CHAN_ALM_MAX|CHAN_ALM_MIN)   /* 0x87 */
+#define TEMP_RW1C_MASK	(VIN_RW1C_MASK|TEMP_ALM_CRIT|TEMP_FAULT) /* 0xCF */
+
+static void pc87360_init_device(struct platform_device *pdev,
+				int use_thermistors)
+{
+	struct pc87360_data *data = platform_get_drvdata(pdev);
+	int i, nr;
+	const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
+	const u8 init_temp[3] = { 2, 2, 1 };
+	u8 reg;
+
+	if (init >= 2 && data->innr) {
+		reg = pc87360_read_value(data, LD_IN, NO_BANK,
+					 PC87365_REG_IN_CONVRATE);
+		dev_info(&pdev->dev, "VLM conversion set to "
+			 "1s period, 160us delay\n");
+		pc87360_write_value(data, LD_IN, NO_BANK,
+				    PC87365_REG_IN_CONVRATE,
+				    (reg & 0xC0) | 0x11);
+	}
+
+	nr = data->innr < 11 ? data->innr : 11;
+	for (i = 0; i < nr; i++) {
+		reg = pc87360_read_value(data, LD_IN, i,
+					 PC87365_REG_IN_STATUS);
+		dev_dbg(&pdev->dev, "bios in%d status:0x%02x\n", i, reg);
+		if (init >= init_in[i]) {
+			/* Forcibly enable voltage channel */
+			if (!(reg & CHAN_ENA)) {
+				dev_dbg(&pdev->dev, "Forcibly "
+					"enabling in%d\n", i);
+				pc87360_write_value(data, LD_IN, i,
+						    PC87365_REG_IN_STATUS,
+						    (reg & 0x68) | 0x87);
+			}
+		}
+	}
+
+	/* We can't blindly trust the Super-I/O space configuration bit,
+	   most BIOS won't set it properly */
+	dev_dbg(&pdev->dev, "bios thermistors:%d\n", use_thermistors);
+	for (i = 11; i < data->innr; i++) {
+		reg = pc87360_read_value(data, LD_IN, i,
+					 PC87365_REG_TEMP_STATUS);
+		use_thermistors = use_thermistors || (reg & CHAN_ENA);
+		/* thermistors are temp[4-6], measured on vin[11-14] */
+		dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i-7, reg);
+	}
+	dev_dbg(&pdev->dev, "using thermistors:%d\n", use_thermistors);
+
+	i = use_thermistors ? 2 : 0;
+	for (; i < data->tempnr; i++) {
+		reg = pc87360_read_value(data, LD_TEMP, i,
+					 PC87365_REG_TEMP_STATUS);
+		dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i+1, reg);
+		if (init >= init_temp[i]) {
+			/* Forcibly enable temperature channel */
+			if (!(reg & CHAN_ENA)) {
+				dev_dbg(&pdev->dev, "Forcibly "
+					"enabling temp%d\n", i+1);
+				pc87360_write_value(data, LD_TEMP, i,
+						    PC87365_REG_TEMP_STATUS,
+						    0xCF);
+			}
+		}
+	}
+
+	if (use_thermistors) {
+		for (i = 11; i < data->innr; i++) {
+			if (init >= init_in[i]) {
+				/* The pin may already be used by thermal
+				   diodes */
+				reg = pc87360_read_value(data, LD_TEMP,
+				      (i-11)/2, PC87365_REG_TEMP_STATUS);
+				if (reg & CHAN_ENA) {
+					dev_dbg(&pdev->dev, "Skipping "
+						"temp%d, pin already in use "
+						"by temp%d\n", i-7, (i-11)/2);
+					continue;
+				}
+
+				/* Forcibly enable thermistor channel */
+				reg = pc87360_read_value(data, LD_IN, i,
+							 PC87365_REG_IN_STATUS);
+				if (!(reg & CHAN_ENA)) {
+					dev_dbg(&pdev->dev, "Forcibly "
+						"enabling temp%d\n", i-7);
+					pc87360_write_value(data, LD_IN, i,
+						PC87365_REG_TEMP_STATUS,
+						(reg & 0x60) | 0x8F);
+				}
+			}
+		}
+	}
+
+	if (data->innr) {
+		reg = pc87360_read_value(data, LD_IN, NO_BANK,
+					 PC87365_REG_IN_CONFIG);
+		dev_dbg(&pdev->dev, "bios vin-cfg:0x%02x\n", reg);
+		if (reg & CHAN_ENA) {
+			dev_dbg(&pdev->dev, "Forcibly "
+				"enabling monitoring (VLM)\n");
+			pc87360_write_value(data, LD_IN, NO_BANK,
+					    PC87365_REG_IN_CONFIG,
+					    reg & 0xFE);
+		}
+	}
+
+	if (data->tempnr) {
+		reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
+					 PC87365_REG_TEMP_CONFIG);
+		dev_dbg(&pdev->dev, "bios temp-cfg:0x%02x\n", reg);
+		if (reg & CHAN_ENA) {
+			dev_dbg(&pdev->dev, "Forcibly enabling "
+				"monitoring (TMS)\n");
+			pc87360_write_value(data, LD_TEMP, NO_BANK,
+					    PC87365_REG_TEMP_CONFIG,
+					    reg & 0xFE);
+		}
+
+		if (init >= 2) {
+			/* Chip config as documented by National Semi. */
+			pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
+			/* We voluntarily omit the bank here, in case the
+			   sequence itself matters. It shouldn't be a problem,
+			   since nobody else is supposed to access the
+			   device at that point. */
+			pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
+			pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
+			pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
+			pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
+		}
+	}
+}
+
+static void pc87360_autodiv(struct device *dev, int nr)
+{
+	struct pc87360_data *data = dev_get_drvdata(dev);
+	u8 old_min = data->fan_min[nr];
+
+	/* Increase clock divider if needed and possible */
+	if ((data->fan_status[nr] & 0x04) /* overflow flag */
+	 || (data->fan[nr] >= 224)) { /* next to overflow */
+		if ((data->fan_status[nr] & 0x60) != 0x60) {
+			data->fan_status[nr] += 0x20;
+			data->fan_min[nr] >>= 1;
+			data->fan[nr] >>= 1;
+			dev_dbg(dev, "Increasing "
+				"clock divider to %d for fan %d\n",
+				FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1);
+		}
+	} else {
+		/* Decrease clock divider if possible */
+		while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
+		 && data->fan[nr] < 85 /* bad accuracy */
+		 && (data->fan_status[nr] & 0x60) != 0x00) {
+			data->fan_status[nr] -= 0x20;
+			data->fan_min[nr] <<= 1;
+			data->fan[nr] <<= 1;
+			dev_dbg(dev, "Decreasing "
+				"clock divider to %d for fan %d\n",
+				FAN_DIV_FROM_REG(data->fan_status[nr]),
+				nr+1);
+		}
+	}
+
+	/* Write new fan min if it changed */
+	if (old_min != data->fan_min[nr]) {
+		pc87360_write_value(data, LD_FAN, NO_BANK,
+				    PC87360_REG_FAN_MIN(nr),
+				    data->fan_min[nr]);
+	}
+}
+
+static struct pc87360_data *pc87360_update_device(struct device *dev)
+{
+	struct pc87360_data *data = dev_get_drvdata(dev);
+	u8 i;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
+		dev_dbg(dev, "Data update\n");
+
+		/* Fans */
+		for (i = 0; i < data->fannr; i++) {
+			if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
+				data->fan_status[i] =
+					pc87360_read_value(data, LD_FAN,
+					NO_BANK, PC87360_REG_FAN_STATUS(i));
+				data->fan[i] = pc87360_read_value(data, LD_FAN,
+					       NO_BANK, PC87360_REG_FAN(i));
+				data->fan_min[i] = pc87360_read_value(data,
+						   LD_FAN, NO_BANK,
+						   PC87360_REG_FAN_MIN(i));
+				/* Change clock divider if needed */
+				pc87360_autodiv(dev, i);
+				/* Clear bits and write new divider */
+				pc87360_write_value(data, LD_FAN, NO_BANK,
+						    PC87360_REG_FAN_STATUS(i),
+						    data->fan_status[i]);
+			}
+			if (FAN_CONFIG_CONTROL(data->fan_conf, i))
+				data->pwm[i] = pc87360_read_value(data, LD_FAN,
+					       NO_BANK, PC87360_REG_PWM(i));
+		}
+
+		/* Voltages */
+		for (i = 0; i < data->innr; i++) {
+			data->in_status[i] = pc87360_read_value(data, LD_IN, i,
+					     PC87365_REG_IN_STATUS);
+			/* Clear bits */
+			pc87360_write_value(data, LD_IN, i,
+					    PC87365_REG_IN_STATUS,
+					    data->in_status[i]);
+			if ((data->in_status[i] & CHAN_READY) == CHAN_READY) {
+				data->in[i] = pc87360_read_value(data, LD_IN,
+					      i, PC87365_REG_IN);
+			}
+			if (data->in_status[i] & CHAN_ENA) {
+				data->in_min[i] = pc87360_read_value(data,
+						  LD_IN, i,
+						  PC87365_REG_IN_MIN);
+				data->in_max[i] = pc87360_read_value(data,
+						  LD_IN, i,
+						  PC87365_REG_IN_MAX);
+				if (i >= 11)
+					data->in_crit[i-11] =
+						pc87360_read_value(data, LD_IN,
+						i, PC87365_REG_TEMP_CRIT);
+			}
+		}
+		if (data->innr) {
+			data->in_alarms = pc87360_read_value(data, LD_IN,
+					  NO_BANK, PC87365_REG_IN_ALARMS1)
+					| ((pc87360_read_value(data, LD_IN,
+					    NO_BANK, PC87365_REG_IN_ALARMS2)
+					    & 0x07) << 8);
+			data->vid = (data->vid_conf & 0xE0) ?
+				    pc87360_read_value(data, LD_IN,
+				    NO_BANK, PC87365_REG_VID) : 0x1F;
+		}
+
+		/* Temperatures */
+		for (i = 0; i < data->tempnr; i++) {
+			data->temp_status[i] = pc87360_read_value(data,
+					       LD_TEMP, i,
+					       PC87365_REG_TEMP_STATUS);
+			/* Clear bits */
+			pc87360_write_value(data, LD_TEMP, i,
+					    PC87365_REG_TEMP_STATUS,
+					    data->temp_status[i]);
+			if ((data->temp_status[i] & CHAN_READY) == CHAN_READY) {
+				data->temp[i] = pc87360_read_value(data,
+						LD_TEMP, i,
+						PC87365_REG_TEMP);
+			}
+			if (data->temp_status[i] & CHAN_ENA) {
+				data->temp_min[i] = pc87360_read_value(data,
+						    LD_TEMP, i,
+						    PC87365_REG_TEMP_MIN);
+				data->temp_max[i] = pc87360_read_value(data,
+						    LD_TEMP, i,
+						    PC87365_REG_TEMP_MAX);
+				data->temp_crit[i] = pc87360_read_value(data,
+						     LD_TEMP, i,
+						     PC87365_REG_TEMP_CRIT);
+			}
+		}
+		if (data->tempnr) {
+			data->temp_alarms = pc87360_read_value(data, LD_TEMP,
+					    NO_BANK, PC87365_REG_TEMP_ALARMS)
+					    & 0x3F;
+		}
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init pc87360_device_add(unsigned short address)
+{
+	struct resource res = {
+		.name	= "pc87360",
+		.flags	= IORESOURCE_IO,
+	};
+	int err, i;
+
+	pdev = platform_device_alloc("pc87360", address);
+	if (!pdev) {
+		err = -ENOMEM;
+		printk(KERN_ERR "pc87360: Device allocation failed\n");
+		goto exit;
+	}
+
+	for (i = 0; i < 3; i++) {
+		if (!extra_isa[i])
+			continue;
+		res.start = extra_isa[i];
+		res.end = extra_isa[i] + PC87360_EXTENT - 1;
+		err = platform_device_add_resources(pdev, &res, 1);
+		if (err) {
+			printk(KERN_ERR "pc87360: Device resource[%d] "
+			       "addition failed (%d)\n", i, err);
+			goto exit_device_put;
+		}
+	}
+
+	err = platform_device_add(pdev);
+	if (err) {
+		printk(KERN_ERR "pc87360: Device addition failed (%d)\n",
+		       err);
+		goto exit_device_put;
+	}
+
+	return 0;
+
+exit_device_put:
+	platform_device_put(pdev);
+exit:
+	return err;
+}
+
+static int __init pc87360_init(void)
+{
+	int err, i;
+	unsigned short address = 0;
+
+	if (pc87360_find(0x2e, &devid, extra_isa)
+	 && pc87360_find(0x4e, &devid, extra_isa)) {
+		printk(KERN_WARNING "pc87360: PC8736x not detected, "
+		       "module not inserted.\n");
+		return -ENODEV;
+	}
+
+	/* Arbitrarily pick one of the addresses */
+	for (i = 0; i < 3; i++) {
+		if (extra_isa[i] != 0x0000) {
+			address = extra_isa[i];
+			break;
+		}
+	}
+
+	if (address == 0x0000) {
+		printk(KERN_WARNING "pc87360: No active logical device, "
+		       "module not inserted.\n");
+		return -ENODEV;
+	}
+
+	err = platform_driver_register(&pc87360_driver);
+	if (err)
+		goto exit;
+
+	/* Sets global pdev as a side effect */
+	err = pc87360_device_add(address);
+	if (err)
+		goto exit_driver;
+
+	return 0;
+
+ exit_driver:
+	platform_driver_unregister(&pc87360_driver);
+ exit:
+	return err;
+}
+
+static void __exit pc87360_exit(void)
+{
+	platform_device_unregister(pdev);
+	platform_driver_unregister(&pc87360_driver);
+}
+
+
+MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
+MODULE_DESCRIPTION("PC8736x hardware monitor");
+MODULE_LICENSE("GPL");
+
+module_init(pc87360_init);
+module_exit(pc87360_exit);
diff --git a/drivers/hwmon/pc87427.c b/drivers/hwmon/pc87427.c
new file mode 100644
index 0000000..7265f22
--- /dev/null
+++ b/drivers/hwmon/pc87427.c
@@ -0,0 +1,644 @@
+/*
+ *  pc87427.c - hardware monitoring driver for the
+ *              National Semiconductor PC87427 Super-I/O chip
+ *  Copyright (C) 2006 Jean Delvare <khali@linux-fr.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  Supports the following chips:
+ *
+ *  Chip        #vin    #fan    #pwm    #temp   devid
+ *  PC87427     -       8       -       -       0xF2
+ *
+ *  This driver assumes that no more than one chip is present.
+ *  Only fan inputs are supported so far, although the chip can do much more.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+#include <linux/ioport.h>
+#include <asm/io.h>
+
+static unsigned short force_id;
+module_param(force_id, ushort, 0);
+MODULE_PARM_DESC(force_id, "Override the detected device ID");
+
+static struct platform_device *pdev;
+
+#define DRVNAME "pc87427"
+
+/* The lock mutex protects both the I/O accesses (needed because the
+   device is using banked registers) and the register cache (needed to keep
+   the data in the registers and the cache in sync at any time). */
+struct pc87427_data {
+	struct device *hwmon_dev;
+	struct mutex lock;
+	int address[2];
+	const char *name;
+
+	unsigned long last_updated;	/* in jiffies */
+	u8 fan_enabled;			/* bit vector */
+	u16 fan[8];			/* register values */
+	u16 fan_min[8];			/* register values */
+	u8 fan_status[8];		/* register values */
+};
+
+/*
+ * Super-I/O registers and operations
+ */
+
+#define SIOREG_LDSEL	0x07	/* Logical device select */
+#define SIOREG_DEVID	0x20	/* Device ID */
+#define SIOREG_ACT	0x30	/* Device activation */
+#define SIOREG_MAP	0x50	/* I/O or memory mapping */
+#define SIOREG_IOBASE	0x60	/* I/O base address */
+
+static const u8 logdev[2] = { 0x09, 0x14 };
+static const char *logdev_str[2] = { DRVNAME " FMC", DRVNAME " HMC" };
+#define LD_FAN		0
+#define LD_IN		1
+#define LD_TEMP		1
+
+static inline void superio_outb(int sioaddr, int reg, int val)
+{
+	outb(reg, sioaddr);
+	outb(val, sioaddr + 1);
+}
+
+static inline int superio_inb(int sioaddr, int reg)
+{
+	outb(reg, sioaddr);
+	return inb(sioaddr + 1);
+}
+
+static inline void superio_exit(int sioaddr)
+{
+	outb(0x02, sioaddr);
+	outb(0x02, sioaddr + 1);
+}
+
+/*
+ * Logical devices
+ */
+
+#define REGION_LENGTH		32
+#define PC87427_REG_BANK	0x0f
+#define BANK_FM(nr)		(nr)
+#define BANK_FT(nr)		(0x08 + (nr))
+#define BANK_FC(nr)		(0x10 + (nr) * 2)
+
+/*
+ * I/O access functions
+ */
+
+/* ldi is the logical device index */
+static inline int pc87427_read8(struct pc87427_data *data, u8 ldi, u8 reg)
+{
+	return inb(data->address[ldi] + reg);
+}
+
+/* Must be called with data->lock held, except during init */
+static inline int pc87427_read8_bank(struct pc87427_data *data, u8 ldi,
+				     u8 bank, u8 reg)
+{
+	outb(bank, data->address[ldi] + PC87427_REG_BANK);
+	return inb(data->address[ldi] + reg);
+}
+
+/* Must be called with data->lock held, except during init */
+static inline void pc87427_write8_bank(struct pc87427_data *data, u8 ldi,
+				       u8 bank, u8 reg, u8 value)
+{
+	outb(bank, data->address[ldi] + PC87427_REG_BANK);
+	outb(value, data->address[ldi] + reg);
+}
+
+/*
+ * Fan registers and conversions
+ */
+
+/* fan data registers are 16-bit wide */
+#define PC87427_REG_FAN			0x12
+#define PC87427_REG_FAN_MIN		0x14
+#define PC87427_REG_FAN_STATUS		0x10
+
+#define FAN_STATUS_STALL		(1 << 3)
+#define FAN_STATUS_LOSPD		(1 << 1)
+#define FAN_STATUS_MONEN		(1 << 0)
+
+/* Dedicated function to read all registers related to a given fan input.
+   This saves us quite a few locks and bank selections.
+   Must be called with data->lock held.
+   nr is from 0 to 7 */
+static void pc87427_readall_fan(struct pc87427_data *data, u8 nr)
+{
+	int iobase = data->address[LD_FAN];
+
+	outb(BANK_FM(nr), iobase + PC87427_REG_BANK);
+	data->fan[nr] = inw(iobase + PC87427_REG_FAN);
+	data->fan_min[nr] = inw(iobase + PC87427_REG_FAN_MIN);
+	data->fan_status[nr] = inb(iobase + PC87427_REG_FAN_STATUS);
+	/* Clear fan alarm bits */
+	outb(data->fan_status[nr], iobase + PC87427_REG_FAN_STATUS);
+}
+
+/* The 2 LSB of fan speed registers are used for something different.
+   The actual 2 LSB of the measurements are not available. */
+static inline unsigned long fan_from_reg(u16 reg)
+{
+	reg &= 0xfffc;
+	if (reg == 0x0000 || reg == 0xfffc)
+		return 0;
+	return 5400000UL / reg;
+}
+
+/* The 2 LSB of the fan speed limit registers are not significant. */
+static inline u16 fan_to_reg(unsigned long val)
+{
+	if (val < 83UL)
+		return 0xffff;
+	if (val >= 1350000UL)
+		return 0x0004;
+	return ((1350000UL + val / 2) / val) << 2;
+}
+
+/*
+ * Data interface
+ */
+
+static struct pc87427_data *pc87427_update_device(struct device *dev)
+{
+	struct pc87427_data *data = dev_get_drvdata(dev);
+	int i;
+
+	mutex_lock(&data->lock);
+	if (!time_after(jiffies, data->last_updated + HZ)
+	 && data->last_updated)
+		goto done;
+
+	/* Fans */
+	for (i = 0; i < 8; i++) {
+		if (!(data->fan_enabled & (1 << i)))
+			continue;
+		pc87427_readall_fan(data, i);
+	}
+	data->last_updated = jiffies;
+
+done:
+	mutex_unlock(&data->lock);
+	return data;
+}
+
+static ssize_t show_fan_input(struct device *dev, struct device_attribute
+			      *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87427_data *data = pc87427_update_device(dev);
+	int nr = attr->index;
+
+	return sprintf(buf, "%lu\n", fan_from_reg(data->fan[nr]));
+}
+
+static ssize_t show_fan_min(struct device *dev, struct device_attribute
+			    *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87427_data *data = pc87427_update_device(dev);
+	int nr = attr->index;
+
+	return sprintf(buf, "%lu\n", fan_from_reg(data->fan_min[nr]));
+}
+
+static ssize_t show_fan_alarm(struct device *dev, struct device_attribute
+			      *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87427_data *data = pc87427_update_device(dev);
+	int nr = attr->index;
+
+	return sprintf(buf, "%d\n", !!(data->fan_status[nr]
+				       & FAN_STATUS_LOSPD));
+}
+
+static ssize_t show_fan_fault(struct device *dev, struct device_attribute
+			      *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct pc87427_data *data = pc87427_update_device(dev);
+	int nr = attr->index;
+
+	return sprintf(buf, "%d\n", !!(data->fan_status[nr]
+				       & FAN_STATUS_STALL));
+}
+
+static ssize_t set_fan_min(struct device *dev, struct device_attribute
+			   *devattr, const char *buf, size_t count)
+{
+	struct pc87427_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	int nr = attr->index;
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+	int iobase = data->address[LD_FAN];
+
+	mutex_lock(&data->lock);
+	outb(BANK_FM(nr), iobase + PC87427_REG_BANK);
+	/* The low speed limit registers are read-only while monitoring
+	   is enabled, so we have to disable monitoring, then change the
+	   limit, and finally enable monitoring again. */
+	outb(0, iobase + PC87427_REG_FAN_STATUS);
+	data->fan_min[nr] = fan_to_reg(val);
+	outw(data->fan_min[nr], iobase + PC87427_REG_FAN_MIN);
+	outb(FAN_STATUS_MONEN, iobase + PC87427_REG_FAN_STATUS);
+	mutex_unlock(&data->lock);
+
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan_input, NULL, 3);
+static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan_input, NULL, 4);
+static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan_input, NULL, 5);
+static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan_input, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan8_input, S_IRUGO, show_fan_input, NULL, 7);
+
+static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
+			  show_fan_min, set_fan_min, 0);
+static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
+			  show_fan_min, set_fan_min, 1);
+static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
+			  show_fan_min, set_fan_min, 2);
+static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
+			  show_fan_min, set_fan_min, 3);
+static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
+			  show_fan_min, set_fan_min, 4);
+static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
+			  show_fan_min, set_fan_min, 5);
+static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
+			  show_fan_min, set_fan_min, 6);
+static SENSOR_DEVICE_ATTR(fan8_min, S_IWUSR | S_IRUGO,
+			  show_fan_min, set_fan_min, 7);
+
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_fan_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_fan_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_fan_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_fan_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_fan_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_fan_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_fan_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan8_alarm, S_IRUGO, show_fan_alarm, NULL, 7);
+
+static SENSOR_DEVICE_ATTR(fan1_fault, S_IRUGO, show_fan_fault, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan2_fault, S_IRUGO, show_fan_fault, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan3_fault, S_IRUGO, show_fan_fault, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan4_fault, S_IRUGO, show_fan_fault, NULL, 3);
+static SENSOR_DEVICE_ATTR(fan5_fault, S_IRUGO, show_fan_fault, NULL, 4);
+static SENSOR_DEVICE_ATTR(fan6_fault, S_IRUGO, show_fan_fault, NULL, 5);
+static SENSOR_DEVICE_ATTR(fan7_fault, S_IRUGO, show_fan_fault, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan8_fault, S_IRUGO, show_fan_fault, NULL, 7);
+
+static struct attribute *pc87427_attributes_fan[8][5] = {
+	{
+		&sensor_dev_attr_fan1_input.dev_attr.attr,
+		&sensor_dev_attr_fan1_min.dev_attr.attr,
+		&sensor_dev_attr_fan1_alarm.dev_attr.attr,
+		&sensor_dev_attr_fan1_fault.dev_attr.attr,
+		NULL
+	}, {
+		&sensor_dev_attr_fan2_input.dev_attr.attr,
+		&sensor_dev_attr_fan2_min.dev_attr.attr,
+		&sensor_dev_attr_fan2_alarm.dev_attr.attr,
+		&sensor_dev_attr_fan2_fault.dev_attr.attr,
+		NULL
+	}, {
+		&sensor_dev_attr_fan3_input.dev_attr.attr,
+		&sensor_dev_attr_fan3_min.dev_attr.attr,
+		&sensor_dev_attr_fan3_alarm.dev_attr.attr,
+		&sensor_dev_attr_fan3_fault.dev_attr.attr,
+		NULL
+	}, {
+		&sensor_dev_attr_fan4_input.dev_attr.attr,
+		&sensor_dev_attr_fan4_min.dev_attr.attr,
+		&sensor_dev_attr_fan4_alarm.dev_attr.attr,
+		&sensor_dev_attr_fan4_fault.dev_attr.attr,
+		NULL
+	}, {
+		&sensor_dev_attr_fan5_input.dev_attr.attr,
+		&sensor_dev_attr_fan5_min.dev_attr.attr,
+		&sensor_dev_attr_fan5_alarm.dev_attr.attr,
+		&sensor_dev_attr_fan5_fault.dev_attr.attr,
+		NULL
+	}, {
+		&sensor_dev_attr_fan6_input.dev_attr.attr,
+		&sensor_dev_attr_fan6_min.dev_attr.attr,
+		&sensor_dev_attr_fan6_alarm.dev_attr.attr,
+		&sensor_dev_attr_fan6_fault.dev_attr.attr,
+		NULL
+	}, {
+		&sensor_dev_attr_fan7_input.dev_attr.attr,
+		&sensor_dev_attr_fan7_min.dev_attr.attr,
+		&sensor_dev_attr_fan7_alarm.dev_attr.attr,
+		&sensor_dev_attr_fan7_fault.dev_attr.attr,
+		NULL
+	}, {
+		&sensor_dev_attr_fan8_input.dev_attr.attr,
+		&sensor_dev_attr_fan8_min.dev_attr.attr,
+		&sensor_dev_attr_fan8_alarm.dev_attr.attr,
+		&sensor_dev_attr_fan8_fault.dev_attr.attr,
+		NULL
+	}
+};
+
+static const struct attribute_group pc87427_group_fan[8] = {
+	{ .attrs = pc87427_attributes_fan[0] },
+	{ .attrs = pc87427_attributes_fan[1] },
+	{ .attrs = pc87427_attributes_fan[2] },
+	{ .attrs = pc87427_attributes_fan[3] },
+	{ .attrs = pc87427_attributes_fan[4] },
+	{ .attrs = pc87427_attributes_fan[5] },
+	{ .attrs = pc87427_attributes_fan[6] },
+	{ .attrs = pc87427_attributes_fan[7] },
+};
+
+static ssize_t show_name(struct device *dev, struct device_attribute
+			 *devattr, char *buf)
+{
+	struct pc87427_data *data = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%s\n", data->name);
+}
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+
+
+/*
+ * Device detection, attach and detach
+ */
+
+static void __devinit pc87427_init_device(struct device *dev)
+{
+	struct pc87427_data *data = dev_get_drvdata(dev);
+	int i;
+	u8 reg;
+
+	/* The FMC module should be ready */
+	reg = pc87427_read8(data, LD_FAN, PC87427_REG_BANK);
+	if (!(reg & 0x80))
+		dev_warn(dev, "FMC module not ready!\n");
+
+	/* Check which fans are enabled */
+	for (i = 0; i < 8; i++) {
+		reg = pc87427_read8_bank(data, LD_FAN, BANK_FM(i),
+					 PC87427_REG_FAN_STATUS);
+		if (reg & FAN_STATUS_MONEN)
+			data->fan_enabled |= (1 << i);
+	}
+
+	if (!data->fan_enabled) {
+		dev_dbg(dev, "Enabling all fan inputs\n");
+		for (i = 0; i < 8; i++)
+			pc87427_write8_bank(data, LD_FAN, BANK_FM(i),
+					    PC87427_REG_FAN_STATUS,
+					    FAN_STATUS_MONEN);
+		data->fan_enabled = 0xff;
+	}
+}
+
+static int __devinit pc87427_probe(struct platform_device *pdev)
+{
+	struct pc87427_data *data;
+	struct resource *res;
+	int i, err;
+
+	if (!(data = kzalloc(sizeof(struct pc87427_data), GFP_KERNEL))) {
+		err = -ENOMEM;
+		printk(KERN_ERR DRVNAME ": Out of memory\n");
+		goto exit;
+	}
+
+	/* This will need to be revisited when we add support for
+	   temperature and voltage monitoring. */
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	if (!request_region(res->start, res->end - res->start + 1, DRVNAME)) {
+		err = -EBUSY;
+		dev_err(&pdev->dev, "Failed to request region 0x%lx-0x%lx\n",
+			(unsigned long)res->start, (unsigned long)res->end);
+		goto exit_kfree;
+	}
+	data->address[0] = res->start;
+
+	mutex_init(&data->lock);
+	data->name = "pc87427";
+	platform_set_drvdata(pdev, data);
+	pc87427_init_device(&pdev->dev);
+
+	/* Register sysfs hooks */
+	if ((err = device_create_file(&pdev->dev, &dev_attr_name)))
+		goto exit_release_region;
+	for (i = 0; i < 8; i++) {
+		if (!(data->fan_enabled & (1 << i)))
+			continue;
+		if ((err = sysfs_create_group(&pdev->dev.kobj,
+					      &pc87427_group_fan[i])))
+			goto exit_remove_files;
+	}
+
+	data->hwmon_dev = hwmon_device_register(&pdev->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		dev_err(&pdev->dev, "Class registration failed (%d)\n", err);
+		goto exit_remove_files;
+	}
+
+	return 0;
+
+exit_remove_files:
+	for (i = 0; i < 8; i++) {
+		if (!(data->fan_enabled & (1 << i)))
+			continue;
+		sysfs_remove_group(&pdev->dev.kobj, &pc87427_group_fan[i]);
+	}
+exit_release_region:
+	release_region(res->start, res->end - res->start + 1);
+exit_kfree:
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+exit:
+	return err;
+}
+
+static int __devexit pc87427_remove(struct platform_device *pdev)
+{
+	struct pc87427_data *data = platform_get_drvdata(pdev);
+	struct resource *res;
+	int i;
+
+	hwmon_device_unregister(data->hwmon_dev);
+	device_remove_file(&pdev->dev, &dev_attr_name);
+	for (i = 0; i < 8; i++) {
+		if (!(data->fan_enabled & (1 << i)))
+			continue;
+		sysfs_remove_group(&pdev->dev.kobj, &pc87427_group_fan[i]);
+	}
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	release_region(res->start, res->end - res->start + 1);
+
+	return 0;
+}
+
+
+static struct platform_driver pc87427_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= DRVNAME,
+	},
+	.probe		= pc87427_probe,
+	.remove		= __devexit_p(pc87427_remove),
+};
+
+static int __init pc87427_device_add(unsigned short address)
+{
+	struct resource res = {
+		.start	= address,
+		.end	= address + REGION_LENGTH - 1,
+		.name	= logdev_str[0],
+		.flags	= IORESOURCE_IO,
+	};
+	int err;
+
+	pdev = platform_device_alloc(DRVNAME, address);
+	if (!pdev) {
+		err = -ENOMEM;
+		printk(KERN_ERR DRVNAME ": Device allocation failed\n");
+		goto exit;
+	}
+
+	err = platform_device_add_resources(pdev, &res, 1);
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Device resource addition failed "
+		       "(%d)\n", err);
+		goto exit_device_put;
+	}
+
+	err = platform_device_add(pdev);
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",
+		       err);
+		goto exit_device_put;
+	}
+
+	return 0;
+
+exit_device_put:
+	platform_device_put(pdev);
+exit:
+	return err;
+}
+
+static int __init pc87427_find(int sioaddr, unsigned short *address)
+{
+	u16 val;
+	int i, err = 0;
+
+	/* Identify device */
+	val = force_id ? force_id : superio_inb(sioaddr, SIOREG_DEVID);
+	if (val != 0xf2) {	/* PC87427 */
+		err = -ENODEV;
+		goto exit;
+	}
+
+	for (i = 0; i < 2; i++) {
+		address[i] = 0;
+		/* Select logical device */
+		superio_outb(sioaddr, SIOREG_LDSEL, logdev[i]);
+
+		val = superio_inb(sioaddr, SIOREG_ACT);
+		if (!(val & 0x01)) {
+			printk(KERN_INFO DRVNAME ": Logical device 0x%02x "
+			       "not activated\n", logdev[i]);
+			continue;
+		}
+
+		val = superio_inb(sioaddr, SIOREG_MAP);
+		if (val & 0x01) {
+			printk(KERN_WARNING DRVNAME ": Logical device 0x%02x "
+			       "is memory-mapped, can't use\n", logdev[i]);
+			continue;
+		}
+
+		val = (superio_inb(sioaddr, SIOREG_IOBASE) << 8)
+		    | superio_inb(sioaddr, SIOREG_IOBASE + 1);
+		if (!val) {
+			printk(KERN_INFO DRVNAME ": I/O base address not set "
+			       "for logical device 0x%02x\n", logdev[i]);
+			continue;
+		}
+		address[i] = val;
+	}
+
+exit:
+	superio_exit(sioaddr);
+	return err;
+}
+
+static int __init pc87427_init(void)
+{
+	int err;
+	unsigned short address[2];
+
+	if (pc87427_find(0x2e, address)
+	 && pc87427_find(0x4e, address))
+		return -ENODEV;
+
+	/* For now the driver only handles fans so we only care about the
+	   first address. */
+	if (!address[0])
+		return -ENODEV;
+
+	err = platform_driver_register(&pc87427_driver);
+	if (err)
+		goto exit;
+
+	/* Sets global pdev as a side effect */
+	err = pc87427_device_add(address[0]);
+	if (err)
+		goto exit_driver;
+
+	return 0;
+
+exit_driver:
+	platform_driver_unregister(&pc87427_driver);
+exit:
+	return err;
+}
+
+static void __exit pc87427_exit(void)
+{
+	platform_device_unregister(pdev);
+	platform_driver_unregister(&pc87427_driver);
+}
+
+MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
+MODULE_DESCRIPTION("PC87427 hardware monitoring driver");
+MODULE_LICENSE("GPL");
+
+module_init(pc87427_init);
+module_exit(pc87427_exit);
diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
new file mode 100644
index 0000000..52a3c7e
--- /dev/null
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -0,0 +1,144 @@
+#
+# PMBus chip drivers configuration
+#
+
+menuconfig PMBUS
+	tristate "PMBus support"
+	depends on I2C
+	default n
+	help
+	  Say yes here if you want to enable PMBus support.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called pmbus_core.
+
+if PMBUS
+
+config SENSORS_PMBUS
+	tristate "Generic PMBus devices"
+	default y
+	help
+	  If you say yes here you get hardware monitoring support for generic
+	  PMBus devices, including but not limited to ADP4000, BMR453, BMR454,
+	  MDT040, NCP4200, NCP4208, PDT003, PDT006, PDT012, UDT020, TPS40400,
+	  and TPS40422.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called pmbus.
+
+config SENSORS_ADM1275
+	tristate "Analog Devices ADM1275 and compatibles"
+	default n
+	help
+	  If you say yes here you get hardware monitoring support for Analog
+	  Devices ADM1075, ADM1275, and ADM1276 Hot-Swap Controller and Digital
+	  Power Monitors.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called adm1275.
+
+config SENSORS_LM25066
+	tristate "National Semiconductor LM25066 and compatibles"
+	default n
+	help
+	  If you say yes here you get hardware monitoring support for National
+	  Semiconductor LM25056, LM25066, LM5064, and LM5066.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called lm25066.
+
+config SENSORS_LTC2978
+	tristate "Linear Technologies LTC2974, LTC2978, LTC3880, and LTC3883"
+	default n
+	help
+	  If you say yes here you get hardware monitoring support for Linear
+	  Technology LTC2974, LTC2978, LTC3880, and LTC3883.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called ltc2978.
+
+config SENSORS_MAX16064
+	tristate "Maxim MAX16064"
+	default n
+	help
+	  If you say yes here you get hardware monitoring support for Maxim
+	  MAX16064.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called max16064.
+
+config SENSORS_MAX34440
+	tristate "Maxim MAX34440 and compatibles"
+	default n
+	help
+	  If you say yes here you get hardware monitoring support for Maxim
+	  MAX34440, MAX34441, MAX34446, MAX34460, and MAX34461.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called max34440.
+
+config SENSORS_MAX8688
+	tristate "Maxim MAX8688"
+	default n
+	help
+	  If you say yes here you get hardware monitoring support for Maxim
+	  MAX8688.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called max8688.
+
+config SENSORS_PFE1100
+	tristate "Power One PFE1100"
+	default n
+	help
+	  If you say yes here you get hardware monitoring support for
+	  Power One PFE1100 devices.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called pfe1100.
+
+config SENSORS_PFE3000
+	tristate "Power One PFE3000"
+	default n
+	help
+	  If you say yes here you get hardware monitoring support for
+	  Power One PFE3000 devices.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called pfe3000.
+
+config SENSORS_UCD9000
+	tristate "TI UCD90120, UCD90124, UCD9090, UCD90910"
+	default n
+	help
+	  If you say yes here you get hardware monitoring support for TI
+	  UCD90120, UCD90124, UCD9090, UCD90910 Sequencer and System Health
+	  Controllers.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called ucd9000.
+
+config SENSORS_UCD9200
+	tristate "TI UCD9220, UCD9222, UCD9224, UCD9240, UCD9244, UCD9246, UCD9248"
+	default n
+	help
+	  If you say yes here you get hardware monitoring support for TI
+	  UCD9220, UCD9222, UCD9224, UCD9240, UCD9244, UCD9246, and UCD9248
+	  Digital PWM System Controllers.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called ucd9200.
+
+config SENSORS_ZL6100
+	tristate "Intersil ZL6100 and compatibles"
+	default n
+	help
+	  If you say yes here you get hardware monitoring support for Intersil
+	  ZL2004, ZL2005, ZL2006, ZL2008, ZL2105, ZL2106, ZL6100, ZL6105,
+	  ZL9101M, and ZL9117M Digital DC/DC Controllers, as well as for
+	  Ericsson BMR450, BMR451, BMR462, BMR463, and BMR464.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called zl6100.
+
+endif # PMBUS
diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
new file mode 100644
index 0000000..6cb3f6d
--- /dev/null
+++ b/drivers/hwmon/pmbus/Makefile
@@ -0,0 +1,17 @@
+#
+# Makefile for PMBus chip drivers.
+#
+
+obj-$(CONFIG_PMBUS)		+= pmbus_core.o
+obj-$(CONFIG_SENSORS_PMBUS)	+= pmbus.o
+obj-$(CONFIG_SENSORS_ADM1275)	+= adm1275.o
+obj-$(CONFIG_SENSORS_LM25066)	+= lm25066.o
+obj-$(CONFIG_SENSORS_LTC2978)	+= ltc2978.o
+obj-$(CONFIG_SENSORS_MAX16064)	+= max16064.o
+obj-$(CONFIG_SENSORS_MAX34440)	+= max34440.o
+obj-$(CONFIG_SENSORS_MAX8688)	+= max8688.o
+obj-$(CONFIG_SENSORS_PFE1100)	+= pfe1100.o
+obj-$(CONFIG_SENSORS_PFE3000)	+= pfe3000.o
+obj-$(CONFIG_SENSORS_UCD9000)	+= ucd9000.o
+obj-$(CONFIG_SENSORS_UCD9200)	+= ucd9200.o
+obj-$(CONFIG_SENSORS_ZL6100)	+= zl6100.o
diff --git a/drivers/hwmon/pmbus/adm1275.c b/drivers/hwmon/pmbus/adm1275.c
new file mode 100644
index 0000000..d29f604
--- /dev/null
+++ b/drivers/hwmon/pmbus/adm1275.c
@@ -0,0 +1,457 @@
+/*
+ * Hardware monitoring driver for Analog Devices ADM1275 Hot-Swap Controller
+ * and Digital Power Monitor
+ *
+ * Copyright (c) 2011 Ericsson AB.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include "pmbus.h"
+
+enum chips { adm1075, adm1275, adm1276, adm1278 };
+
+#define ADM1275_PEAK_IOUT		0xd0
+#define ADM1275_PEAK_VIN		0xd1
+#define ADM1275_PEAK_VOUT		0xd2
+#define ADM1278_PMON_CONTROL		0xd3
+#define ADM1275_PMON_CONFIG		0xd4
+
+#define ADM1278_CFG_TSFLT		(1 << 15)
+#define ADM1278_CFG_SIMULTANEOUS	(1 << 14)
+#define ADM1278_CFG_PMON_MODE		(1 << 4)
+#define ADM1278_CFG_TEMP1_EN		(1 << 3)
+#define ADM1278_CFG_VIN_EN		(1 << 2)
+#define ADM1278_CFG_VOUT_EN		(1 << 1)
+
+#define ADM1275_VIN_VOUT_SELECT		(1 << 6)
+#define ADM1275_VRANGE			(1 << 5)
+#define ADM1075_IRANGE_50		(1 << 4)
+#define ADM1075_IRANGE_25		(1 << 3)
+#define ADM1075_IRANGE_MASK		((1 << 3) | (1 << 4))
+
+#define ADM1275_IOUT_WARN2_LIMIT	0xd7
+#define ADM1275_DEVICE_CONFIG		0xd8
+
+#define ADM1275_IOUT_WARN2_SELECT	(1 << 4)
+
+#define ADM1276_PEAK_PIN		0xda
+
+#define ADM1275_MFR_STATUS_IOUT_WARN2	(1 << 0)
+
+#define ADM1075_READ_VAUX		0xdd
+#define ADM1075_VAUX_OV_WARN_LIMIT	0xde
+#define ADM1075_VAUX_UV_WARN_LIMIT	0xdf
+#define ADM1075_VAUX_STATUS		0xf6
+
+#define ADM1075_VAUX_OV_WARN		(1<<7)
+#define ADM1075_VAUX_UV_WARN		(1<<6)
+
+struct adm1275_data {
+	int id;
+	bool have_oc_fault;
+	struct pmbus_driver_info info;
+};
+
+#define to_adm1275_data(x)  container_of(x, struct adm1275_data, info)
+
+#define ADM1278_R_SENSE	500	/* R_sense resistor value in microohms   */
+
+static int r_sense = ADM1278_R_SENSE;
+module_param(r_sense, int, 0644);
+MODULE_PARM_DESC(r_sense, "Rsense resistor value in microohms");
+
+
+static int adm1275_read_word_data(struct i2c_client *client, int page, int reg)
+{
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	const struct adm1275_data *data = to_adm1275_data(info);
+	int ret = 0;
+
+	if (page)
+		return -ENXIO;
+
+	switch (reg) {
+	case PMBUS_IOUT_UC_FAULT_LIMIT:
+		if (data->have_oc_fault) {
+			ret = -ENXIO;
+			break;
+		}
+		ret = pmbus_read_word_data(client, 0, ADM1275_IOUT_WARN2_LIMIT);
+		break;
+	case PMBUS_IOUT_OC_FAULT_LIMIT:
+		if (!data->have_oc_fault) {
+			ret = -ENXIO;
+			break;
+		}
+		ret = pmbus_read_word_data(client, 0, ADM1275_IOUT_WARN2_LIMIT);
+		break;
+	case PMBUS_VOUT_OV_WARN_LIMIT:
+		if (data->id != adm1075) {
+			ret = -ENODATA;
+			break;
+		}
+		ret = pmbus_read_word_data(client, 0,
+					   ADM1075_VAUX_OV_WARN_LIMIT);
+		break;
+	case PMBUS_VOUT_UV_WARN_LIMIT:
+		if (data->id != adm1075) {
+			ret = -ENODATA;
+			break;
+		}
+		ret = pmbus_read_word_data(client, 0,
+					   ADM1075_VAUX_UV_WARN_LIMIT);
+		break;
+	case PMBUS_READ_VOUT:
+		if (data->id != adm1075) {
+			ret = -ENODATA;
+			break;
+		}
+		ret = pmbus_read_word_data(client, 0, ADM1075_READ_VAUX);
+		break;
+	case PMBUS_VIRT_READ_IOUT_MAX:
+		ret = pmbus_read_word_data(client, 0, ADM1275_PEAK_IOUT);
+		break;
+	case PMBUS_VIRT_READ_VOUT_MAX:
+		ret = pmbus_read_word_data(client, 0, ADM1275_PEAK_VOUT);
+		break;
+	case PMBUS_VIRT_READ_VIN_MAX:
+		ret = pmbus_read_word_data(client, 0, ADM1275_PEAK_VIN);
+		break;
+	case PMBUS_VIRT_READ_PIN_MAX:
+		if (data->id == adm1275) {
+			ret = -ENXIO;
+			break;
+		}
+		ret = pmbus_read_word_data(client, 0, ADM1276_PEAK_PIN);
+		break;
+	case PMBUS_VIRT_RESET_IOUT_HISTORY:
+	case PMBUS_VIRT_RESET_VOUT_HISTORY:
+	case PMBUS_VIRT_RESET_VIN_HISTORY:
+		break;
+	case PMBUS_VIRT_RESET_PIN_HISTORY:
+		if (data->id == adm1275)
+			ret = -ENXIO;
+		break;
+	default:
+		ret = -ENODATA;
+		break;
+	}
+	return ret;
+}
+
+static int adm1275_write_word_data(struct i2c_client *client, int page, int reg,
+				   u16 word)
+{
+	int ret;
+
+	if (page)
+		return -ENXIO;
+
+	switch (reg) {
+	case PMBUS_IOUT_UC_FAULT_LIMIT:
+	case PMBUS_IOUT_OC_FAULT_LIMIT:
+		ret = pmbus_write_word_data(client, 0, ADM1275_IOUT_WARN2_LIMIT,
+					    word);
+		break;
+	case PMBUS_VIRT_RESET_IOUT_HISTORY:
+		ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_IOUT, 0);
+		break;
+	case PMBUS_VIRT_RESET_VOUT_HISTORY:
+		ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_VOUT, 0);
+		break;
+	case PMBUS_VIRT_RESET_VIN_HISTORY:
+		ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_VIN, 0);
+		break;
+	case PMBUS_VIRT_RESET_PIN_HISTORY:
+		ret = pmbus_write_word_data(client, 0, ADM1276_PEAK_PIN, 0);
+		break;
+	default:
+		ret = -ENODATA;
+		break;
+	}
+	return ret;
+}
+
+static int adm1275_read_byte_data(struct i2c_client *client, int page, int reg)
+{
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	const struct adm1275_data *data = to_adm1275_data(info);
+	int mfr_status, ret;
+
+	if (page > 0)
+		return -ENXIO;
+
+	switch (reg) {
+	case PMBUS_STATUS_IOUT:
+		ret = pmbus_read_byte_data(client, page, PMBUS_STATUS_IOUT);
+		if (ret < 0)
+			break;
+		mfr_status = pmbus_read_byte_data(client, page,
+						  PMBUS_STATUS_MFR_SPECIFIC);
+		if (mfr_status < 0) {
+			ret = mfr_status;
+			break;
+		}
+		if (mfr_status & ADM1275_MFR_STATUS_IOUT_WARN2) {
+			ret |= data->have_oc_fault ?
+			  PB_IOUT_OC_FAULT : PB_IOUT_UC_FAULT;
+		}
+		break;
+	case PMBUS_STATUS_VOUT:
+		if (data->id != adm1075) {
+			ret = -ENODATA;
+			break;
+		}
+		ret = 0;
+		mfr_status = pmbus_read_byte_data(client, 0,
+						  ADM1075_VAUX_STATUS);
+		if (mfr_status & ADM1075_VAUX_OV_WARN)
+			ret |= PB_VOLTAGE_OV_WARNING;
+		if (mfr_status & ADM1075_VAUX_UV_WARN)
+			ret |= PB_VOLTAGE_UV_WARNING;
+		break;
+	default:
+		ret = -ENODATA;
+		break;
+	}
+	return ret;
+}
+
+static const struct i2c_device_id adm1275_id[] = {
+	{ "adm1075", adm1075 },
+	{ "adm1275", adm1275 },
+	{ "adm1276", adm1276 },
+	{ "adm1278", adm1278 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adm1275_id);
+
+static int adm1275_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	u8 block_buffer[I2C_SMBUS_BLOCK_MAX + 1];
+	int config, device_config;
+	int ret;
+	struct pmbus_driver_info *info;
+	struct adm1275_data *data;
+	const struct i2c_device_id *mid;
+
+	if (!i2c_check_functionality(client->adapter,
+				     I2C_FUNC_SMBUS_READ_BYTE_DATA
+				     | I2C_FUNC_SMBUS_BLOCK_DATA))
+		return -ENODEV;
+
+	ret = i2c_smbus_read_block_data(client, PMBUS_MFR_ID, block_buffer);
+	if (ret < 0) {
+		dev_err(&client->dev, "Failed to read Manufacturer ID\n");
+		return ret;
+	}
+	if (ret != 3 || strncmp(block_buffer, "ADI", 3)) {
+		dev_err(&client->dev, "Unsupported Manufacturer ID\n");
+		return -ENODEV;
+	}
+
+	ret = i2c_smbus_read_block_data(client, PMBUS_MFR_MODEL, block_buffer);
+	if (ret < 0) {
+		dev_err(&client->dev, "Failed to read Manufacturer Model\n");
+		return ret;
+	}
+	for (mid = adm1275_id; mid->name[0]; mid++) {
+		if (!strncasecmp(mid->name, block_buffer, strlen(mid->name)))
+			break;
+	}
+	if (!mid->name[0]) {
+		dev_err(&client->dev, "Unsupported device\n");
+		return -ENODEV;
+	}
+
+	if (id->driver_data != mid->driver_data)
+		dev_notice(&client->dev,
+			   "Device mismatch: Configured %s, detected %s\n",
+			   id->name, mid->name);
+
+	config = i2c_smbus_read_byte_data(client, ADM1275_PMON_CONFIG);
+	if (config < 0)
+		return config;
+
+	device_config = i2c_smbus_read_byte_data(client, ADM1275_DEVICE_CONFIG);
+	if (device_config < 0)
+		return device_config;
+
+	data = devm_kzalloc(&client->dev, sizeof(struct adm1275_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->id = mid->driver_data;
+
+	info = &data->info;
+
+	info->pages = 1;
+	info->format[PSC_VOLTAGE_IN] = direct;
+	info->format[PSC_VOLTAGE_OUT] = direct;
+	info->format[PSC_CURRENT_OUT] = direct;
+	if (data->id == adm1278)
+		info->m[PSC_CURRENT_OUT] = 807 * r_sense / 1000;
+	else
+		info->m[PSC_CURRENT_OUT] = 807;
+	info->b[PSC_CURRENT_OUT] = 20475;
+	info->R[PSC_CURRENT_OUT] = -1;
+	info->func[0] = PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT;
+
+	if (data->id == adm1278) {
+		/* Configure monitoring */
+		ret = i2c_smbus_write_byte_data(client,
+						ADM1278_PMON_CONTROL, 0);
+		if (ret < 0)
+			return ret;
+		ret = i2c_smbus_read_word_data(client, ADM1275_PMON_CONFIG);
+		ret = i2c_smbus_write_word_data(client, ADM1275_PMON_CONFIG,
+						ADM1278_CFG_PMON_MODE |
+						ADM1278_CFG_TEMP1_EN |
+						ADM1278_CFG_VIN_EN |
+						ADM1278_CFG_VOUT_EN);
+		if (ret < 0)
+			return ret;
+		ret = i2c_smbus_read_word_data(client, ADM1275_PMON_CONFIG);
+		ret = i2c_smbus_write_byte_data(client, ADM1278_PMON_CONTROL, 1);
+		if (ret < 0)
+			return ret;
+	} else {
+		/* TODO klahey -- there might be adm1278 issues here, too. */
+		info->read_word_data = adm1275_read_word_data;
+		info->read_byte_data = adm1275_read_byte_data;
+		info->write_word_data = adm1275_write_word_data;
+	}
+
+	if (data->id == adm1278) {
+		info->m[PSC_VOLTAGE_IN] = 19599;
+		info->b[PSC_VOLTAGE_IN] = 0;
+		info->R[PSC_VOLTAGE_IN] = -2;
+		info->m[PSC_VOLTAGE_OUT] = 19599;
+		info->b[PSC_VOLTAGE_OUT] = 0;
+		info->R[PSC_VOLTAGE_OUT] = -2;
+	} else if (data->id == adm1075) {
+		info->m[PSC_VOLTAGE_IN] = 27169;
+		info->b[PSC_VOLTAGE_IN] = 0;
+		info->R[PSC_VOLTAGE_IN] = -1;
+		info->m[PSC_VOLTAGE_OUT] = 27169;
+		info->b[PSC_VOLTAGE_OUT] = 0;
+		info->R[PSC_VOLTAGE_OUT] = -1;
+	} else if (config & ADM1275_VRANGE) {
+		info->m[PSC_VOLTAGE_IN] = 19199;
+		info->b[PSC_VOLTAGE_IN] = 0;
+		info->R[PSC_VOLTAGE_IN] = -2;
+		info->m[PSC_VOLTAGE_OUT] = 19199;
+		info->b[PSC_VOLTAGE_OUT] = 0;
+		info->R[PSC_VOLTAGE_OUT] = -2;
+	} else {
+		info->m[PSC_VOLTAGE_IN] = 6720;
+		info->b[PSC_VOLTAGE_IN] = 0;
+		info->R[PSC_VOLTAGE_IN] = -1;
+		info->m[PSC_VOLTAGE_OUT] = 6720;
+		info->b[PSC_VOLTAGE_OUT] = 0;
+		info->R[PSC_VOLTAGE_OUT] = -1;
+	}
+
+	if (device_config & ADM1275_IOUT_WARN2_SELECT)
+		data->have_oc_fault = true;
+
+	switch (data->id) {
+	case adm1075:
+		info->format[PSC_POWER] = direct;
+		info->b[PSC_POWER] = 0;
+		info->R[PSC_POWER] = -1;
+		switch (config & ADM1075_IRANGE_MASK) {
+		case ADM1075_IRANGE_25:
+			info->m[PSC_POWER] = 8549;
+			info->m[PSC_CURRENT_OUT] = 806;
+			break;
+		case ADM1075_IRANGE_50:
+			info->m[PSC_POWER] = 4279;
+			info->m[PSC_CURRENT_OUT] = 404;
+			break;
+		default:
+			dev_err(&client->dev, "Invalid input current range");
+			info->m[PSC_POWER] = 0;
+			info->m[PSC_CURRENT_OUT] = 0;
+			break;
+		}
+		info->func[0] |= PMBUS_HAVE_VIN | PMBUS_HAVE_PIN
+		  | PMBUS_HAVE_STATUS_INPUT;
+		if (config & ADM1275_VIN_VOUT_SELECT)
+			info->func[0] |=
+			  PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
+		break;
+	case adm1275:
+		if (config & ADM1275_VIN_VOUT_SELECT)
+			info->func[0] |=
+			  PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
+		else
+			info->func[0] |=
+			  PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT;
+		break;
+	case adm1276:
+		info->format[PSC_POWER] = direct;
+		info->func[0] |= PMBUS_HAVE_VIN | PMBUS_HAVE_PIN
+		  | PMBUS_HAVE_STATUS_INPUT;
+		if (config & ADM1275_VIN_VOUT_SELECT)
+			info->func[0] |=
+			  PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
+		if (config & ADM1275_VRANGE) {
+			info->m[PSC_POWER] = 6043;
+			info->b[PSC_POWER] = 0;
+			info->R[PSC_POWER] = -2;
+		} else {
+			info->m[PSC_POWER] = 2115;
+			info->b[PSC_POWER] = 0;
+			info->R[PSC_POWER] = -1;
+		}
+		break;
+	case adm1278:
+		info->format[PSC_POWER] = direct;
+		info->format[PSC_TEMPERATURE] = direct;
+		info->func[0] |= PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT
+		  | PMBUS_HAVE_STATUS_INPUT
+		  | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP;
+		info->m[PSC_POWER] = 6123 * r_sense / 1000;
+		info->b[PSC_POWER] = 0;
+		info->R[PSC_POWER] = -2;
+		info->m[PSC_TEMPERATURE] = 42;
+		info->b[PSC_TEMPERATURE] = 31880;
+		info->R[PSC_TEMPERATURE] = -1;
+		break;
+	}
+
+	return pmbus_do_probe(client, id, info);
+}
+
+static struct i2c_driver adm1275_driver = {
+	.driver = {
+		   .name = "adm1275",
+		   },
+	.probe = adm1275_probe,
+	.remove = pmbus_do_remove,
+	.id_table = adm1275_id,
+};
+
+module_i2c_driver(adm1275_driver);
+
+MODULE_AUTHOR("Guenter Roeck");
+MODULE_DESCRIPTION("PMBus driver for Analog Devices ADM1275 and compatibles");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/pmbus/lm25066.c b/drivers/hwmon/pmbus/lm25066.c
new file mode 100644
index 0000000..6a9d6ed
--- /dev/null
+++ b/drivers/hwmon/pmbus/lm25066.c
@@ -0,0 +1,457 @@
+/*
+ * Hardware monitoring driver for LM25056 / LM25066 / LM5064 / LM5066
+ *
+ * Copyright (c) 2011 Ericsson AB.
+ * Copyright (c) 2013 Guenter Roeck
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include "pmbus.h"
+
+enum chips { lm25056, lm25066, lm5064, lm5066 };
+
+#define LM25066_READ_VAUX		0xd0
+#define LM25066_MFR_READ_IIN		0xd1
+#define LM25066_MFR_READ_PIN		0xd2
+#define LM25066_MFR_IIN_OC_WARN_LIMIT	0xd3
+#define LM25066_MFR_PIN_OP_WARN_LIMIT	0xd4
+#define LM25066_READ_PIN_PEAK		0xd5
+#define LM25066_CLEAR_PIN_PEAK		0xd6
+#define LM25066_DEVICE_SETUP		0xd9
+#define LM25066_READ_AVG_VIN		0xdc
+#define LM25066_READ_AVG_VOUT		0xdd
+#define LM25066_READ_AVG_IIN		0xde
+#define LM25066_READ_AVG_PIN		0xdf
+
+#define LM25066_DEV_SETUP_CL		(1 << 4)	/* Current limit */
+
+/* LM25056 only */
+
+#define LM25056_VAUX_OV_WARN_LIMIT	0xe3
+#define LM25056_VAUX_UV_WARN_LIMIT	0xe4
+
+#define LM25056_MFR_STS_VAUX_OV_WARN	(1 << 1)
+#define LM25056_MFR_STS_VAUX_UV_WARN	(1 << 0)
+
+struct __coeff {
+	short m, b, R;
+};
+
+#define PSC_CURRENT_IN_L	(PSC_NUM_CLASSES)
+#define PSC_POWER_L		(PSC_NUM_CLASSES + 1)
+
+static struct __coeff lm25066_coeff[4][PSC_NUM_CLASSES + 2] = {
+	[lm25056] = {
+		[PSC_VOLTAGE_IN] = {
+			.m = 16296,
+			.R = -2,
+		},
+		[PSC_CURRENT_IN] = {
+			.m = 13797,
+			.R = -2,
+		},
+		[PSC_CURRENT_IN_L] = {
+			.m = 6726,
+			.R = -2,
+		},
+		[PSC_POWER] = {
+			.m = 5501,
+			.R = -3,
+		},
+		[PSC_POWER_L] = {
+			.m = 26882,
+			.R = -4,
+		},
+		[PSC_TEMPERATURE] = {
+			.m = 1580,
+			.b = -14500,
+			.R = -2,
+		},
+	},
+	[lm25066] = {
+		[PSC_VOLTAGE_IN] = {
+			.m = 22070,
+			.R = -2,
+		},
+		[PSC_VOLTAGE_OUT] = {
+			.m = 22070,
+			.R = -2,
+		},
+		[PSC_CURRENT_IN] = {
+			.m = 13661,
+			.R = -2,
+		},
+		[PSC_CURRENT_IN_L] = {
+			.m = 6852,
+			.R = -2,
+		},
+		[PSC_POWER] = {
+			.m = 736,
+			.R = -2,
+		},
+		[PSC_POWER_L] = {
+			.m = 369,
+			.R = -2,
+		},
+		[PSC_TEMPERATURE] = {
+			.m = 16,
+		},
+	},
+	[lm5064] = {
+		[PSC_VOLTAGE_IN] = {
+			.m = 4611,
+			.R = -2,
+		},
+		[PSC_VOLTAGE_OUT] = {
+			.m = 4621,
+			.R = -2,
+		},
+		[PSC_CURRENT_IN] = {
+			.m = 10742,
+			.R = -2,
+		},
+		[PSC_CURRENT_IN_L] = {
+			.m = 5456,
+			.R = -2,
+		},
+		[PSC_POWER] = {
+			.m = 1204,
+			.R = -3,
+		},
+		[PSC_POWER_L] = {
+			.m = 612,
+			.R = -3,
+		},
+		[PSC_TEMPERATURE] = {
+			.m = 16,
+		},
+	},
+	[lm5066] = {
+		[PSC_VOLTAGE_IN] = {
+			.m = 4587,
+			.R = -2,
+		},
+		[PSC_VOLTAGE_OUT] = {
+			.m = 4587,
+			.R = -2,
+		},
+		[PSC_CURRENT_IN] = {
+			.m = 10753,
+			.R = -2,
+		},
+		[PSC_CURRENT_IN_L] = {
+			.m = 5405,
+			.R = -2,
+		},
+		[PSC_POWER] = {
+			.m = 1204,
+			.R = -3,
+		},
+		[PSC_POWER_L] = {
+			.m = 605,
+			.R = -3,
+		},
+		[PSC_TEMPERATURE] = {
+			.m = 16,
+		},
+	},
+};
+
+struct lm25066_data {
+	int id;
+	struct pmbus_driver_info info;
+};
+
+#define to_lm25066_data(x)  container_of(x, struct lm25066_data, info)
+
+static int lm25066_read_word_data(struct i2c_client *client, int page, int reg)
+{
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	const struct lm25066_data *data = to_lm25066_data(info);
+	int ret;
+
+	switch (reg) {
+	case PMBUS_VIRT_READ_VMON:
+		ret = pmbus_read_word_data(client, 0, LM25066_READ_VAUX);
+		if (ret < 0)
+			break;
+		/* Adjust returned value to match VIN coefficients */
+		switch (data->id) {
+		case lm25056:
+			/* VIN: 6.14 mV VAUX: 293 uV LSB */
+			ret = DIV_ROUND_CLOSEST(ret * 293, 6140);
+			break;
+		case lm25066:
+			/* VIN: 4.54 mV VAUX: 283.2 uV LSB */
+			ret = DIV_ROUND_CLOSEST(ret * 2832, 45400);
+			break;
+		case lm5064:
+			/* VIN: 4.53 mV VAUX: 700 uV LSB */
+			ret = DIV_ROUND_CLOSEST(ret * 70, 453);
+			break;
+		case lm5066:
+			/* VIN: 2.18 mV VAUX: 725 uV LSB */
+			ret = DIV_ROUND_CLOSEST(ret * 725, 2180);
+			break;
+		}
+		break;
+	case PMBUS_READ_IIN:
+		ret = pmbus_read_word_data(client, 0, LM25066_MFR_READ_IIN);
+		break;
+	case PMBUS_READ_PIN:
+		ret = pmbus_read_word_data(client, 0, LM25066_MFR_READ_PIN);
+		break;
+	case PMBUS_IIN_OC_WARN_LIMIT:
+		ret = pmbus_read_word_data(client, 0,
+					   LM25066_MFR_IIN_OC_WARN_LIMIT);
+		break;
+	case PMBUS_PIN_OP_WARN_LIMIT:
+		ret = pmbus_read_word_data(client, 0,
+					   LM25066_MFR_PIN_OP_WARN_LIMIT);
+		break;
+	case PMBUS_VIRT_READ_VIN_AVG:
+		ret = pmbus_read_word_data(client, 0, LM25066_READ_AVG_VIN);
+		break;
+	case PMBUS_VIRT_READ_VOUT_AVG:
+		ret = pmbus_read_word_data(client, 0, LM25066_READ_AVG_VOUT);
+		break;
+	case PMBUS_VIRT_READ_IIN_AVG:
+		ret = pmbus_read_word_data(client, 0, LM25066_READ_AVG_IIN);
+		break;
+	case PMBUS_VIRT_READ_PIN_AVG:
+		ret = pmbus_read_word_data(client, 0, LM25066_READ_AVG_PIN);
+		break;
+	case PMBUS_VIRT_READ_PIN_MAX:
+		ret = pmbus_read_word_data(client, 0, LM25066_READ_PIN_PEAK);
+		break;
+	case PMBUS_VIRT_RESET_PIN_HISTORY:
+		ret = 0;
+		break;
+	default:
+		ret = -ENODATA;
+		break;
+	}
+	return ret;
+}
+
+static int lm25056_read_word_data(struct i2c_client *client, int page, int reg)
+{
+	int ret;
+
+	switch (reg) {
+	case PMBUS_VIRT_VMON_UV_WARN_LIMIT:
+		ret = pmbus_read_word_data(client, 0,
+					   LM25056_VAUX_UV_WARN_LIMIT);
+		if (ret < 0)
+			break;
+		/* Adjust returned value to match VIN coefficients */
+		ret = DIV_ROUND_CLOSEST(ret * 293, 6140);
+		break;
+	case PMBUS_VIRT_VMON_OV_WARN_LIMIT:
+		ret = pmbus_read_word_data(client, 0,
+					   LM25056_VAUX_OV_WARN_LIMIT);
+		if (ret < 0)
+			break;
+		/* Adjust returned value to match VIN coefficients */
+		ret = DIV_ROUND_CLOSEST(ret * 293, 6140);
+		break;
+	default:
+		ret = lm25066_read_word_data(client, page, reg);
+		break;
+	}
+	return ret;
+}
+
+static int lm25056_read_byte_data(struct i2c_client *client, int page, int reg)
+{
+	int ret, s;
+
+	switch (reg) {
+	case PMBUS_VIRT_STATUS_VMON:
+		ret = pmbus_read_byte_data(client, 0,
+					   PMBUS_STATUS_MFR_SPECIFIC);
+		if (ret < 0)
+			break;
+		s = 0;
+		if (ret & LM25056_MFR_STS_VAUX_UV_WARN)
+			s |= PB_VOLTAGE_UV_WARNING;
+		if (ret & LM25056_MFR_STS_VAUX_OV_WARN)
+			s |= PB_VOLTAGE_OV_WARNING;
+		ret = s;
+		break;
+	default:
+		ret = -ENODATA;
+		break;
+	}
+	return ret;
+}
+
+static int lm25066_write_word_data(struct i2c_client *client, int page, int reg,
+				   u16 word)
+{
+	int ret;
+
+	switch (reg) {
+	case PMBUS_VOUT_UV_WARN_LIMIT:
+	case PMBUS_OT_FAULT_LIMIT:
+	case PMBUS_OT_WARN_LIMIT:
+	case PMBUS_VIN_UV_WARN_LIMIT:
+	case PMBUS_VIN_OV_WARN_LIMIT:
+		word = ((s16)word < 0) ? 0 : clamp_val(word, 0, 0x0fff);
+		ret = pmbus_write_word_data(client, 0, reg, word);
+		pmbus_clear_cache(client);
+		break;
+	case PMBUS_IIN_OC_WARN_LIMIT:
+		word = ((s16)word < 0) ? 0 : clamp_val(word, 0, 0x0fff);
+		ret = pmbus_write_word_data(client, 0,
+					    LM25066_MFR_IIN_OC_WARN_LIMIT,
+					    word);
+		pmbus_clear_cache(client);
+		break;
+	case PMBUS_PIN_OP_WARN_LIMIT:
+		word = ((s16)word < 0) ? 0 : clamp_val(word, 0, 0x0fff);
+		ret = pmbus_write_word_data(client, 0,
+					    LM25066_MFR_PIN_OP_WARN_LIMIT,
+					    word);
+		pmbus_clear_cache(client);
+		break;
+	case PMBUS_VIRT_VMON_UV_WARN_LIMIT:
+		/* Adjust from VIN coefficients (for LM25056) */
+		word = DIV_ROUND_CLOSEST((int)word * 6140, 293);
+		word = ((s16)word < 0) ? 0 : clamp_val(word, 0, 0x0fff);
+		ret = pmbus_write_word_data(client, 0,
+					    LM25056_VAUX_UV_WARN_LIMIT, word);
+		pmbus_clear_cache(client);
+		break;
+	case PMBUS_VIRT_VMON_OV_WARN_LIMIT:
+		/* Adjust from VIN coefficients (for LM25056) */
+		word = DIV_ROUND_CLOSEST((int)word * 6140, 293);
+		word = ((s16)word < 0) ? 0 : clamp_val(word, 0, 0x0fff);
+		ret = pmbus_write_word_data(client, 0,
+					    LM25056_VAUX_OV_WARN_LIMIT, word);
+		pmbus_clear_cache(client);
+		break;
+	case PMBUS_VIRT_RESET_PIN_HISTORY:
+		ret = pmbus_write_byte(client, 0, LM25066_CLEAR_PIN_PEAK);
+		break;
+	default:
+		ret = -ENODATA;
+		break;
+	}
+	return ret;
+}
+
+static int lm25066_probe(struct i2c_client *client,
+			  const struct i2c_device_id *id)
+{
+	int config;
+	struct lm25066_data *data;
+	struct pmbus_driver_info *info;
+	struct __coeff *coeff;
+
+	if (!i2c_check_functionality(client->adapter,
+				     I2C_FUNC_SMBUS_READ_BYTE_DATA))
+		return -ENODEV;
+
+	data = devm_kzalloc(&client->dev, sizeof(struct lm25066_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	config = i2c_smbus_read_byte_data(client, LM25066_DEVICE_SETUP);
+	if (config < 0)
+		return config;
+
+	data->id = id->driver_data;
+	info = &data->info;
+
+	info->pages = 1;
+	info->format[PSC_VOLTAGE_IN] = direct;
+	info->format[PSC_VOLTAGE_OUT] = direct;
+	info->format[PSC_CURRENT_IN] = direct;
+	info->format[PSC_TEMPERATURE] = direct;
+	info->format[PSC_POWER] = direct;
+
+	info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VMON
+	  | PMBUS_HAVE_PIN | PMBUS_HAVE_IIN | PMBUS_HAVE_STATUS_INPUT
+	  | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP;
+
+	if (data->id == lm25056) {
+		info->func[0] |= PMBUS_HAVE_STATUS_VMON;
+		info->read_word_data = lm25056_read_word_data;
+		info->read_byte_data = lm25056_read_byte_data;
+	} else {
+		info->func[0] |= PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
+		info->read_word_data = lm25066_read_word_data;
+	}
+	info->write_word_data = lm25066_write_word_data;
+
+	coeff = &lm25066_coeff[data->id][0];
+	info->m[PSC_TEMPERATURE] = coeff[PSC_TEMPERATURE].m;
+	info->b[PSC_TEMPERATURE] = coeff[PSC_TEMPERATURE].b;
+	info->R[PSC_TEMPERATURE] = coeff[PSC_TEMPERATURE].R;
+	info->m[PSC_VOLTAGE_IN] = coeff[PSC_VOLTAGE_IN].m;
+	info->b[PSC_VOLTAGE_IN] = coeff[PSC_VOLTAGE_IN].b;
+	info->R[PSC_VOLTAGE_IN] = coeff[PSC_VOLTAGE_IN].R;
+	info->m[PSC_VOLTAGE_OUT] = coeff[PSC_VOLTAGE_OUT].m;
+	info->b[PSC_VOLTAGE_OUT] = coeff[PSC_VOLTAGE_OUT].b;
+	info->R[PSC_VOLTAGE_OUT] = coeff[PSC_VOLTAGE_OUT].R;
+	info->b[PSC_CURRENT_IN] = coeff[PSC_CURRENT_IN].b;
+	info->R[PSC_CURRENT_IN] = coeff[PSC_CURRENT_IN].R;
+	info->b[PSC_POWER] = coeff[PSC_POWER].b;
+	info->R[PSC_POWER] = coeff[PSC_POWER].R;
+	if (config & LM25066_DEV_SETUP_CL) {
+		info->m[PSC_CURRENT_IN] = coeff[PSC_CURRENT_IN_L].m;
+		info->m[PSC_POWER] = coeff[PSC_POWER_L].m;
+	} else {
+		info->m[PSC_CURRENT_IN] = coeff[PSC_CURRENT_IN].m;
+		info->m[PSC_POWER] = coeff[PSC_POWER].m;
+	}
+
+	return pmbus_do_probe(client, id, info);
+}
+
+static const struct i2c_device_id lm25066_id[] = {
+	{"lm25056", lm25056},
+	{"lm25066", lm25066},
+	{"lm5064", lm5064},
+	{"lm5066", lm5066},
+	{ }
+};
+
+MODULE_DEVICE_TABLE(i2c, lm25066_id);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver lm25066_driver = {
+	.driver = {
+		   .name = "lm25066",
+		   },
+	.probe = lm25066_probe,
+	.remove = pmbus_do_remove,
+	.id_table = lm25066_id,
+};
+
+module_i2c_driver(lm25066_driver);
+
+MODULE_AUTHOR("Guenter Roeck");
+MODULE_DESCRIPTION("PMBus driver for LM25056/LM25066/LM5064/LM5066");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/pmbus/ltc2978.c b/drivers/hwmon/pmbus/ltc2978.c
new file mode 100644
index 0000000..586a89e
--- /dev/null
+++ b/drivers/hwmon/pmbus/ltc2978.c
@@ -0,0 +1,496 @@
+/*
+ * Hardware monitoring driver for LTC2974, LTC2978, LTC3880, and LTC3883
+ *
+ * Copyright (c) 2011 Ericsson AB.
+ * Copyright (c) 2013 Guenter Roeck
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include "pmbus.h"
+
+enum chips { ltc2974, ltc2978, ltc3880, ltc3883 };
+
+/* Common for all chips */
+#define LTC2978_MFR_VOUT_PEAK		0xdd
+#define LTC2978_MFR_VIN_PEAK		0xde
+#define LTC2978_MFR_TEMPERATURE_PEAK	0xdf
+#define LTC2978_MFR_SPECIAL_ID		0xe7
+
+/* LTC2974 and LTC2978 */
+#define LTC2978_MFR_VOUT_MIN		0xfb
+#define LTC2978_MFR_VIN_MIN		0xfc
+#define LTC2978_MFR_TEMPERATURE_MIN	0xfd
+
+/* LTC2974 only */
+#define LTC2974_MFR_IOUT_PEAK		0xd7
+#define LTC2974_MFR_IOUT_MIN		0xd8
+
+/* LTC3880 and LTC3883 */
+#define LTC3880_MFR_IOUT_PEAK		0xd7
+#define LTC3880_MFR_CLEAR_PEAKS		0xe3
+#define LTC3880_MFR_TEMPERATURE2_PEAK	0xf4
+
+/* LTC3883 only */
+#define LTC3883_MFR_IIN_PEAK		0xe1
+
+#define LTC2974_ID			0x0212
+#define LTC2978_ID_REV1			0x0121
+#define LTC2978_ID_REV2			0x0122
+#define LTC3880_ID			0x4000
+#define LTC3880_ID_MASK			0xff00
+#define LTC3883_ID			0x4300
+#define LTC3883_ID_MASK			0xff00
+
+#define LTC2974_NUM_PAGES		4
+#define LTC2978_NUM_PAGES		8
+#define LTC3880_NUM_PAGES		2
+#define LTC3883_NUM_PAGES		1
+
+/*
+ * LTC2978 clears peak data whenever the CLEAR_FAULTS command is executed, which
+ * happens pretty much each time chip data is updated. Raw peak data therefore
+ * does not provide much value. To be able to provide useful peak data, keep an
+ * internal cache of measured peak data, which is only cleared if an explicit
+ * "clear peak" command is executed for the sensor in question.
+ */
+
+struct ltc2978_data {
+	enum chips id;
+	u16 vin_min, vin_max;
+	u16 temp_min[LTC2974_NUM_PAGES], temp_max[LTC2974_NUM_PAGES];
+	u16 vout_min[LTC2978_NUM_PAGES], vout_max[LTC2978_NUM_PAGES];
+	u16 iout_min[LTC2974_NUM_PAGES], iout_max[LTC2974_NUM_PAGES];
+	u16 iin_max;
+	u16 temp2_max;
+	struct pmbus_driver_info info;
+};
+
+#define to_ltc2978_data(x)  container_of(x, struct ltc2978_data, info)
+
+static inline int lin11_to_val(int data)
+{
+	s16 e = ((s16)data) >> 11;
+	s32 m = (((s16)(data << 5)) >> 5);
+
+	/*
+	 * mantissa is 10 bit + sign, exponent adds up to 15 bit.
+	 * Add 6 bit to exponent for maximum accuracy (10 + 15 + 6 = 31).
+	 */
+	e += 6;
+	return (e < 0 ? m >> -e : m << e);
+}
+
+static int ltc2978_read_word_data_common(struct i2c_client *client, int page,
+					 int reg)
+{
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	struct ltc2978_data *data = to_ltc2978_data(info);
+	int ret;
+
+	switch (reg) {
+	case PMBUS_VIRT_READ_VIN_MAX:
+		ret = pmbus_read_word_data(client, page, LTC2978_MFR_VIN_PEAK);
+		if (ret >= 0) {
+			if (lin11_to_val(ret) > lin11_to_val(data->vin_max))
+				data->vin_max = ret;
+			ret = data->vin_max;
+		}
+		break;
+	case PMBUS_VIRT_READ_VOUT_MAX:
+		ret = pmbus_read_word_data(client, page, LTC2978_MFR_VOUT_PEAK);
+		if (ret >= 0) {
+			/*
+			 * VOUT is 16 bit unsigned with fixed exponent,
+			 * so we can compare it directly
+			 */
+			if (ret > data->vout_max[page])
+				data->vout_max[page] = ret;
+			ret = data->vout_max[page];
+		}
+		break;
+	case PMBUS_VIRT_READ_TEMP_MAX:
+		ret = pmbus_read_word_data(client, page,
+					   LTC2978_MFR_TEMPERATURE_PEAK);
+		if (ret >= 0) {
+			if (lin11_to_val(ret)
+			    > lin11_to_val(data->temp_max[page]))
+				data->temp_max[page] = ret;
+			ret = data->temp_max[page];
+		}
+		break;
+	case PMBUS_VIRT_RESET_VOUT_HISTORY:
+	case PMBUS_VIRT_RESET_VIN_HISTORY:
+	case PMBUS_VIRT_RESET_TEMP_HISTORY:
+		ret = 0;
+		break;
+	default:
+		ret = -ENODATA;
+		break;
+	}
+	return ret;
+}
+
+static int ltc2978_read_word_data(struct i2c_client *client, int page, int reg)
+{
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	struct ltc2978_data *data = to_ltc2978_data(info);
+	int ret;
+
+	switch (reg) {
+	case PMBUS_VIRT_READ_VIN_MIN:
+		ret = pmbus_read_word_data(client, page, LTC2978_MFR_VIN_MIN);
+		if (ret >= 0) {
+			if (lin11_to_val(ret) < lin11_to_val(data->vin_min))
+				data->vin_min = ret;
+			ret = data->vin_min;
+		}
+		break;
+	case PMBUS_VIRT_READ_VOUT_MIN:
+		ret = pmbus_read_word_data(client, page, LTC2978_MFR_VOUT_MIN);
+		if (ret >= 0) {
+			/*
+			 * VOUT_MIN is known to not be supported on some lots
+			 * of LTC2978 revision 1, and will return the maximum
+			 * possible voltage if read. If VOUT_MAX is valid and
+			 * lower than the reading of VOUT_MIN, use it instead.
+			 */
+			if (data->vout_max[page] && ret > data->vout_max[page])
+				ret = data->vout_max[page];
+			if (ret < data->vout_min[page])
+				data->vout_min[page] = ret;
+			ret = data->vout_min[page];
+		}
+		break;
+	case PMBUS_VIRT_READ_TEMP_MIN:
+		ret = pmbus_read_word_data(client, page,
+					   LTC2978_MFR_TEMPERATURE_MIN);
+		if (ret >= 0) {
+			if (lin11_to_val(ret)
+			    < lin11_to_val(data->temp_min[page]))
+				data->temp_min[page] = ret;
+			ret = data->temp_min[page];
+		}
+		break;
+	case PMBUS_VIRT_READ_IOUT_MAX:
+	case PMBUS_VIRT_RESET_IOUT_HISTORY:
+	case PMBUS_VIRT_READ_TEMP2_MAX:
+	case PMBUS_VIRT_RESET_TEMP2_HISTORY:
+		ret = -ENXIO;
+		break;
+	default:
+		ret = ltc2978_read_word_data_common(client, page, reg);
+		break;
+	}
+	return ret;
+}
+
+static int ltc2974_read_word_data(struct i2c_client *client, int page, int reg)
+{
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	struct ltc2978_data *data = to_ltc2978_data(info);
+	int ret;
+
+	switch (reg) {
+	case PMBUS_VIRT_READ_IOUT_MAX:
+		ret = pmbus_read_word_data(client, page, LTC2974_MFR_IOUT_PEAK);
+		if (ret >= 0) {
+			if (lin11_to_val(ret)
+			    > lin11_to_val(data->iout_max[page]))
+				data->iout_max[page] = ret;
+			ret = data->iout_max[page];
+		}
+		break;
+	case PMBUS_VIRT_READ_IOUT_MIN:
+		ret = pmbus_read_word_data(client, page, LTC2974_MFR_IOUT_MIN);
+		if (ret >= 0) {
+			if (lin11_to_val(ret)
+			    < lin11_to_val(data->iout_min[page]))
+				data->iout_min[page] = ret;
+			ret = data->iout_min[page];
+		}
+		break;
+	case PMBUS_VIRT_RESET_IOUT_HISTORY:
+		ret = 0;
+		break;
+	default:
+		ret = ltc2978_read_word_data(client, page, reg);
+		break;
+	}
+	return ret;
+}
+
+static int ltc3880_read_word_data(struct i2c_client *client, int page, int reg)
+{
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	struct ltc2978_data *data = to_ltc2978_data(info);
+	int ret;
+
+	switch (reg) {
+	case PMBUS_VIRT_READ_IOUT_MAX:
+		ret = pmbus_read_word_data(client, page, LTC3880_MFR_IOUT_PEAK);
+		if (ret >= 0) {
+			if (lin11_to_val(ret)
+			    > lin11_to_val(data->iout_max[page]))
+				data->iout_max[page] = ret;
+			ret = data->iout_max[page];
+		}
+		break;
+	case PMBUS_VIRT_READ_TEMP2_MAX:
+		ret = pmbus_read_word_data(client, page,
+					   LTC3880_MFR_TEMPERATURE2_PEAK);
+		if (ret >= 0) {
+			if (lin11_to_val(ret) > lin11_to_val(data->temp2_max))
+				data->temp2_max = ret;
+			ret = data->temp2_max;
+		}
+		break;
+	case PMBUS_VIRT_READ_VIN_MIN:
+	case PMBUS_VIRT_READ_VOUT_MIN:
+	case PMBUS_VIRT_READ_TEMP_MIN:
+		ret = -ENXIO;
+		break;
+	case PMBUS_VIRT_RESET_IOUT_HISTORY:
+	case PMBUS_VIRT_RESET_TEMP2_HISTORY:
+		ret = 0;
+		break;
+	default:
+		ret = ltc2978_read_word_data_common(client, page, reg);
+		break;
+	}
+	return ret;
+}
+
+static int ltc3883_read_word_data(struct i2c_client *client, int page, int reg)
+{
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	struct ltc2978_data *data = to_ltc2978_data(info);
+	int ret;
+
+	switch (reg) {
+	case PMBUS_VIRT_READ_IIN_MAX:
+		ret = pmbus_read_word_data(client, page, LTC3883_MFR_IIN_PEAK);
+		if (ret >= 0) {
+			if (lin11_to_val(ret)
+			    > lin11_to_val(data->iin_max))
+				data->iin_max = ret;
+			ret = data->iin_max;
+		}
+		break;
+	case PMBUS_VIRT_RESET_IIN_HISTORY:
+		ret = 0;
+		break;
+	default:
+		ret = ltc3880_read_word_data(client, page, reg);
+		break;
+	}
+	return ret;
+}
+
+static int ltc2978_clear_peaks(struct i2c_client *client, int page,
+			       enum chips id)
+{
+	int ret;
+
+	if (id == ltc3880 || id == ltc3883)
+		ret = pmbus_write_byte(client, 0, LTC3880_MFR_CLEAR_PEAKS);
+	else
+		ret = pmbus_write_byte(client, page, PMBUS_CLEAR_FAULTS);
+
+	return ret;
+}
+
+static int ltc2978_write_word_data(struct i2c_client *client, int page,
+				    int reg, u16 word)
+{
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	struct ltc2978_data *data = to_ltc2978_data(info);
+	int ret;
+
+	switch (reg) {
+	case PMBUS_VIRT_RESET_IIN_HISTORY:
+		data->iin_max = 0x7c00;
+		ret = ltc2978_clear_peaks(client, page, data->id);
+		break;
+	case PMBUS_VIRT_RESET_IOUT_HISTORY:
+		data->iout_max[page] = 0x7c00;
+		data->iout_min[page] = 0xfbff;
+		ret = ltc2978_clear_peaks(client, page, data->id);
+		break;
+	case PMBUS_VIRT_RESET_TEMP2_HISTORY:
+		data->temp2_max = 0x7c00;
+		ret = ltc2978_clear_peaks(client, page, data->id);
+		break;
+	case PMBUS_VIRT_RESET_VOUT_HISTORY:
+		data->vout_min[page] = 0xffff;
+		data->vout_max[page] = 0;
+		ret = ltc2978_clear_peaks(client, page, data->id);
+		break;
+	case PMBUS_VIRT_RESET_VIN_HISTORY:
+		data->vin_min = 0x7bff;
+		data->vin_max = 0x7c00;
+		ret = ltc2978_clear_peaks(client, page, data->id);
+		break;
+	case PMBUS_VIRT_RESET_TEMP_HISTORY:
+		data->temp_min[page] = 0x7bff;
+		data->temp_max[page] = 0x7c00;
+		ret = ltc2978_clear_peaks(client, page, data->id);
+		break;
+	default:
+		ret = -ENODATA;
+		break;
+	}
+	return ret;
+}
+
+static const struct i2c_device_id ltc2978_id[] = {
+	{"ltc2974", ltc2974},
+	{"ltc2978", ltc2978},
+	{"ltc3880", ltc3880},
+	{"ltc3883", ltc3883},
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, ltc2978_id);
+
+static int ltc2978_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	int chip_id, i;
+	struct ltc2978_data *data;
+	struct pmbus_driver_info *info;
+
+	if (!i2c_check_functionality(client->adapter,
+				     I2C_FUNC_SMBUS_READ_WORD_DATA))
+		return -ENODEV;
+
+	data = devm_kzalloc(&client->dev, sizeof(struct ltc2978_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	chip_id = i2c_smbus_read_word_data(client, LTC2978_MFR_SPECIAL_ID);
+	if (chip_id < 0)
+		return chip_id;
+
+	if (chip_id == LTC2974_ID) {
+		data->id = ltc2974;
+	} else if (chip_id == LTC2978_ID_REV1 || chip_id == LTC2978_ID_REV2) {
+		data->id = ltc2978;
+	} else if ((chip_id & LTC3880_ID_MASK) == LTC3880_ID) {
+		data->id = ltc3880;
+	} else if ((chip_id & LTC3883_ID_MASK) == LTC3883_ID) {
+		data->id = ltc3883;
+	} else {
+		dev_err(&client->dev, "Unsupported chip ID 0x%x\n", chip_id);
+		return -ENODEV;
+	}
+	if (data->id != id->driver_data)
+		dev_warn(&client->dev,
+			 "Device mismatch: Configured %s, detected %s\n",
+			 id->name,
+			 ltc2978_id[data->id].name);
+
+	info = &data->info;
+	info->write_word_data = ltc2978_write_word_data;
+
+	data->vin_min = 0x7bff;
+	data->vin_max = 0x7c00;
+	for (i = 0; i < ARRAY_SIZE(data->vout_min); i++)
+		data->vout_min[i] = 0xffff;
+	for (i = 0; i < ARRAY_SIZE(data->iout_min); i++)
+		data->iout_min[i] = 0xfbff;
+	for (i = 0; i < ARRAY_SIZE(data->iout_max); i++)
+		data->iout_max[i] = 0x7c00;
+	for (i = 0; i < ARRAY_SIZE(data->temp_min); i++)
+		data->temp_min[i] = 0x7bff;
+	for (i = 0; i < ARRAY_SIZE(data->temp_max); i++)
+		data->temp_max[i] = 0x7c00;
+	data->temp2_max = 0x7c00;
+
+	switch (data->id) {
+	case ltc2974:
+		info->read_word_data = ltc2974_read_word_data;
+		info->pages = LTC2974_NUM_PAGES;
+		info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT
+		  | PMBUS_HAVE_TEMP2;
+		for (i = 0; i < info->pages; i++) {
+			info->func[i] |= PMBUS_HAVE_VOUT
+			  | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_POUT
+			  | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP
+			  | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT;
+		}
+		break;
+	case ltc2978:
+		info->read_word_data = ltc2978_read_word_data;
+		info->pages = LTC2978_NUM_PAGES;
+		info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT
+		  | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+		  | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP;
+		for (i = 1; i < LTC2978_NUM_PAGES; i++) {
+			info->func[i] = PMBUS_HAVE_VOUT
+			  | PMBUS_HAVE_STATUS_VOUT;
+		}
+		break;
+	case ltc3880:
+		info->read_word_data = ltc3880_read_word_data;
+		info->pages = LTC3880_NUM_PAGES;
+		info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_IIN
+		  | PMBUS_HAVE_STATUS_INPUT
+		  | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+		  | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT
+		  | PMBUS_HAVE_POUT | PMBUS_HAVE_TEMP
+		  | PMBUS_HAVE_TEMP2 | PMBUS_HAVE_STATUS_TEMP;
+		info->func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+		  | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT
+		  | PMBUS_HAVE_POUT
+		  | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP;
+		break;
+	case ltc3883:
+		info->read_word_data = ltc3883_read_word_data;
+		info->pages = LTC3883_NUM_PAGES;
+		info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_IIN
+		  | PMBUS_HAVE_STATUS_INPUT
+		  | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+		  | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT
+		  | PMBUS_HAVE_PIN | PMBUS_HAVE_POUT | PMBUS_HAVE_TEMP
+		  | PMBUS_HAVE_TEMP2 | PMBUS_HAVE_STATUS_TEMP;
+		break;
+	default:
+		return -ENODEV;
+	}
+	return pmbus_do_probe(client, id, info);
+}
+
+/* This is the driver that will be inserted */
+static struct i2c_driver ltc2978_driver = {
+	.driver = {
+		   .name = "ltc2978",
+		   },
+	.probe = ltc2978_probe,
+	.remove = pmbus_do_remove,
+	.id_table = ltc2978_id,
+};
+
+module_i2c_driver(ltc2978_driver);
+
+MODULE_AUTHOR("Guenter Roeck");
+MODULE_DESCRIPTION("PMBus driver for LTC2974, LTC2978, LTC3880, and LTC3883");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/pmbus/max16064.c b/drivers/hwmon/pmbus/max16064.c
new file mode 100644
index 0000000..fa237a3
--- /dev/null
+++ b/drivers/hwmon/pmbus/max16064.c
@@ -0,0 +1,127 @@
+/*
+ * Hardware monitoring driver for Maxim MAX16064
+ *
+ * Copyright (c) 2011 Ericsson AB.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include "pmbus.h"
+
+#define MAX16064_MFR_VOUT_PEAK		0xd4
+#define MAX16064_MFR_TEMPERATURE_PEAK	0xd6
+
+static int max16064_read_word_data(struct i2c_client *client, int page, int reg)
+{
+	int ret;
+
+	switch (reg) {
+	case PMBUS_VIRT_READ_VOUT_MAX:
+		ret = pmbus_read_word_data(client, page,
+					   MAX16064_MFR_VOUT_PEAK);
+		break;
+	case PMBUS_VIRT_READ_TEMP_MAX:
+		ret = pmbus_read_word_data(client, page,
+					   MAX16064_MFR_TEMPERATURE_PEAK);
+		break;
+	case PMBUS_VIRT_RESET_VOUT_HISTORY:
+	case PMBUS_VIRT_RESET_TEMP_HISTORY:
+		ret = 0;
+		break;
+	default:
+		ret = -ENODATA;
+		break;
+	}
+	return ret;
+}
+
+static int max16064_write_word_data(struct i2c_client *client, int page,
+				    int reg, u16 word)
+{
+	int ret;
+
+	switch (reg) {
+	case PMBUS_VIRT_RESET_VOUT_HISTORY:
+		ret = pmbus_write_word_data(client, page,
+					    MAX16064_MFR_VOUT_PEAK, 0);
+		break;
+	case PMBUS_VIRT_RESET_TEMP_HISTORY:
+		ret = pmbus_write_word_data(client, page,
+					    MAX16064_MFR_TEMPERATURE_PEAK,
+					    0xffff);
+		break;
+	default:
+		ret = -ENODATA;
+		break;
+	}
+	return ret;
+}
+
+static struct pmbus_driver_info max16064_info = {
+	.pages = 4,
+	.format[PSC_VOLTAGE_IN] = direct,
+	.format[PSC_VOLTAGE_OUT] = direct,
+	.format[PSC_TEMPERATURE] = direct,
+	.m[PSC_VOLTAGE_IN] = 19995,
+	.b[PSC_VOLTAGE_IN] = 0,
+	.R[PSC_VOLTAGE_IN] = -1,
+	.m[PSC_VOLTAGE_OUT] = 19995,
+	.b[PSC_VOLTAGE_OUT] = 0,
+	.R[PSC_VOLTAGE_OUT] = -1,
+	.m[PSC_TEMPERATURE] = -7612,
+	.b[PSC_TEMPERATURE] = 335,
+	.R[PSC_TEMPERATURE] = -3,
+	.func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_TEMP
+		| PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_TEMP,
+	.func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+	.func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+	.func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+	.read_word_data = max16064_read_word_data,
+	.write_word_data = max16064_write_word_data,
+};
+
+static int max16064_probe(struct i2c_client *client,
+			  const struct i2c_device_id *id)
+{
+	return pmbus_do_probe(client, id, &max16064_info);
+}
+
+static const struct i2c_device_id max16064_id[] = {
+	{"max16064", 0},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, max16064_id);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver max16064_driver = {
+	.driver = {
+		   .name = "max16064",
+		   },
+	.probe = max16064_probe,
+	.remove = pmbus_do_remove,
+	.id_table = max16064_id,
+};
+
+module_i2c_driver(max16064_driver);
+
+MODULE_AUTHOR("Guenter Roeck");
+MODULE_DESCRIPTION("PMBus driver for Maxim MAX16064");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/pmbus/max34440.c b/drivers/hwmon/pmbus/max34440.c
new file mode 100644
index 0000000..7e930c3
--- /dev/null
+++ b/drivers/hwmon/pmbus/max34440.c
@@ -0,0 +1,435 @@
+/*
+ * Hardware monitoring driver for Maxim MAX34440/MAX34441
+ *
+ * Copyright (c) 2011 Ericsson AB.
+ * Copyright (c) 2012 Guenter Roeck
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include "pmbus.h"
+
+enum chips { max34440, max34441, max34446, max34460, max34461 };
+
+#define MAX34440_MFR_VOUT_PEAK		0xd4
+#define MAX34440_MFR_IOUT_PEAK		0xd5
+#define MAX34440_MFR_TEMPERATURE_PEAK	0xd6
+#define MAX34440_MFR_VOUT_MIN		0xd7
+
+#define MAX34446_MFR_POUT_PEAK		0xe0
+#define MAX34446_MFR_POUT_AVG		0xe1
+#define MAX34446_MFR_IOUT_AVG		0xe2
+#define MAX34446_MFR_TEMPERATURE_AVG	0xe3
+
+#define MAX34440_STATUS_OC_WARN		(1 << 0)
+#define MAX34440_STATUS_OC_FAULT	(1 << 1)
+#define MAX34440_STATUS_OT_FAULT	(1 << 5)
+#define MAX34440_STATUS_OT_WARN		(1 << 6)
+
+struct max34440_data {
+	int id;
+	struct pmbus_driver_info info;
+};
+
+#define to_max34440_data(x)  container_of(x, struct max34440_data, info)
+
+static int max34440_read_word_data(struct i2c_client *client, int page, int reg)
+{
+	int ret;
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	const struct max34440_data *data = to_max34440_data(info);
+
+	switch (reg) {
+	case PMBUS_VIRT_READ_VOUT_MIN:
+		ret = pmbus_read_word_data(client, page,
+					   MAX34440_MFR_VOUT_MIN);
+		break;
+	case PMBUS_VIRT_READ_VOUT_MAX:
+		ret = pmbus_read_word_data(client, page,
+					   MAX34440_MFR_VOUT_PEAK);
+		break;
+	case PMBUS_VIRT_READ_IOUT_AVG:
+		if (data->id != max34446)
+			return -ENXIO;
+		ret = pmbus_read_word_data(client, page,
+					   MAX34446_MFR_IOUT_AVG);
+		break;
+	case PMBUS_VIRT_READ_IOUT_MAX:
+		ret = pmbus_read_word_data(client, page,
+					   MAX34440_MFR_IOUT_PEAK);
+		break;
+	case PMBUS_VIRT_READ_POUT_AVG:
+		if (data->id != max34446)
+			return -ENXIO;
+		ret = pmbus_read_word_data(client, page,
+					   MAX34446_MFR_POUT_AVG);
+		break;
+	case PMBUS_VIRT_READ_POUT_MAX:
+		if (data->id != max34446)
+			return -ENXIO;
+		ret = pmbus_read_word_data(client, page,
+					   MAX34446_MFR_POUT_PEAK);
+		break;
+	case PMBUS_VIRT_READ_TEMP_AVG:
+		if (data->id != max34446 && data->id != max34460 &&
+		    data->id != max34461)
+			return -ENXIO;
+		ret = pmbus_read_word_data(client, page,
+					   MAX34446_MFR_TEMPERATURE_AVG);
+		break;
+	case PMBUS_VIRT_READ_TEMP_MAX:
+		ret = pmbus_read_word_data(client, page,
+					   MAX34440_MFR_TEMPERATURE_PEAK);
+		break;
+	case PMBUS_VIRT_RESET_POUT_HISTORY:
+		if (data->id != max34446)
+			return -ENXIO;
+		ret = 0;
+		break;
+	case PMBUS_VIRT_RESET_VOUT_HISTORY:
+	case PMBUS_VIRT_RESET_IOUT_HISTORY:
+	case PMBUS_VIRT_RESET_TEMP_HISTORY:
+		ret = 0;
+		break;
+	default:
+		ret = -ENODATA;
+		break;
+	}
+	return ret;
+}
+
+static int max34440_write_word_data(struct i2c_client *client, int page,
+				    int reg, u16 word)
+{
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	const struct max34440_data *data = to_max34440_data(info);
+	int ret;
+
+	switch (reg) {
+	case PMBUS_VIRT_RESET_POUT_HISTORY:
+		ret = pmbus_write_word_data(client, page,
+					    MAX34446_MFR_POUT_PEAK, 0);
+		if (ret)
+			break;
+		ret = pmbus_write_word_data(client, page,
+					    MAX34446_MFR_POUT_AVG, 0);
+		break;
+	case PMBUS_VIRT_RESET_VOUT_HISTORY:
+		ret = pmbus_write_word_data(client, page,
+					    MAX34440_MFR_VOUT_MIN, 0x7fff);
+		if (ret)
+			break;
+		ret = pmbus_write_word_data(client, page,
+					    MAX34440_MFR_VOUT_PEAK, 0);
+		break;
+	case PMBUS_VIRT_RESET_IOUT_HISTORY:
+		ret = pmbus_write_word_data(client, page,
+					    MAX34440_MFR_IOUT_PEAK, 0);
+		if (!ret && data->id == max34446)
+			ret = pmbus_write_word_data(client, page,
+					MAX34446_MFR_IOUT_AVG, 0);
+
+		break;
+	case PMBUS_VIRT_RESET_TEMP_HISTORY:
+		ret = pmbus_write_word_data(client, page,
+					    MAX34440_MFR_TEMPERATURE_PEAK,
+					    0x8000);
+		if (!ret && data->id == max34446)
+			ret = pmbus_write_word_data(client, page,
+					MAX34446_MFR_TEMPERATURE_AVG, 0);
+		break;
+	default:
+		ret = -ENODATA;
+		break;
+	}
+	return ret;
+}
+
+static int max34440_read_byte_data(struct i2c_client *client, int page, int reg)
+{
+	int ret = 0;
+	int mfg_status;
+
+	if (page >= 0) {
+		ret = pmbus_set_page(client, page);
+		if (ret < 0)
+			return ret;
+	}
+
+	switch (reg) {
+	case PMBUS_STATUS_IOUT:
+		mfg_status = pmbus_read_word_data(client, 0,
+						  PMBUS_STATUS_MFR_SPECIFIC);
+		if (mfg_status < 0)
+			return mfg_status;
+		if (mfg_status & MAX34440_STATUS_OC_WARN)
+			ret |= PB_IOUT_OC_WARNING;
+		if (mfg_status & MAX34440_STATUS_OC_FAULT)
+			ret |= PB_IOUT_OC_FAULT;
+		break;
+	case PMBUS_STATUS_TEMPERATURE:
+		mfg_status = pmbus_read_word_data(client, 0,
+						  PMBUS_STATUS_MFR_SPECIFIC);
+		if (mfg_status < 0)
+			return mfg_status;
+		if (mfg_status & MAX34440_STATUS_OT_WARN)
+			ret |= PB_TEMP_OT_WARNING;
+		if (mfg_status & MAX34440_STATUS_OT_FAULT)
+			ret |= PB_TEMP_OT_FAULT;
+		break;
+	default:
+		ret = -ENODATA;
+		break;
+	}
+	return ret;
+}
+
+static struct pmbus_driver_info max34440_info[] = {
+	[max34440] = {
+		.pages = 14,
+		.format[PSC_VOLTAGE_IN] = direct,
+		.format[PSC_VOLTAGE_OUT] = direct,
+		.format[PSC_TEMPERATURE] = direct,
+		.format[PSC_CURRENT_OUT] = direct,
+		.m[PSC_VOLTAGE_IN] = 1,
+		.b[PSC_VOLTAGE_IN] = 0,
+		.R[PSC_VOLTAGE_IN] = 3,	    /* R = 0 in datasheet reflects mV */
+		.m[PSC_VOLTAGE_OUT] = 1,
+		.b[PSC_VOLTAGE_OUT] = 0,
+		.R[PSC_VOLTAGE_OUT] = 3,    /* R = 0 in datasheet reflects mV */
+		.m[PSC_CURRENT_OUT] = 1,
+		.b[PSC_CURRENT_OUT] = 0,
+		.R[PSC_CURRENT_OUT] = 3,    /* R = 0 in datasheet reflects mA */
+		.m[PSC_TEMPERATURE] = 1,
+		.b[PSC_TEMPERATURE] = 0,
+		.R[PSC_TEMPERATURE] = 2,
+		.func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+		  | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
+		.func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+		  | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
+		.func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+		  | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
+		.func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+		  | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
+		.func[4] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+		  | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
+		.func[5] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+		  | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
+		.func[6] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.func[7] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.func[8] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.func[9] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.func[10] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.func[11] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.func[12] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.func[13] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.read_byte_data = max34440_read_byte_data,
+		.read_word_data = max34440_read_word_data,
+		.write_word_data = max34440_write_word_data,
+	},
+	[max34441] = {
+		.pages = 12,
+		.format[PSC_VOLTAGE_IN] = direct,
+		.format[PSC_VOLTAGE_OUT] = direct,
+		.format[PSC_TEMPERATURE] = direct,
+		.format[PSC_CURRENT_OUT] = direct,
+		.format[PSC_FAN] = direct,
+		.m[PSC_VOLTAGE_IN] = 1,
+		.b[PSC_VOLTAGE_IN] = 0,
+		.R[PSC_VOLTAGE_IN] = 3,
+		.m[PSC_VOLTAGE_OUT] = 1,
+		.b[PSC_VOLTAGE_OUT] = 0,
+		.R[PSC_VOLTAGE_OUT] = 3,
+		.m[PSC_CURRENT_OUT] = 1,
+		.b[PSC_CURRENT_OUT] = 0,
+		.R[PSC_CURRENT_OUT] = 3,
+		.m[PSC_TEMPERATURE] = 1,
+		.b[PSC_TEMPERATURE] = 0,
+		.R[PSC_TEMPERATURE] = 2,
+		.m[PSC_FAN] = 1,
+		.b[PSC_FAN] = 0,
+		.R[PSC_FAN] = 0,
+		.func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+		  | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
+		.func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+		  | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
+		.func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+		  | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
+		.func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+		  | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
+		.func[4] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+		  | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
+		.func[5] = PMBUS_HAVE_FAN12 | PMBUS_HAVE_STATUS_FAN12,
+		.func[6] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.func[7] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.func[8] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.func[9] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.func[10] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.func[11] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.read_byte_data = max34440_read_byte_data,
+		.read_word_data = max34440_read_word_data,
+		.write_word_data = max34440_write_word_data,
+	},
+	[max34446] = {
+		.pages = 7,
+		.format[PSC_VOLTAGE_IN] = direct,
+		.format[PSC_VOLTAGE_OUT] = direct,
+		.format[PSC_TEMPERATURE] = direct,
+		.format[PSC_CURRENT_OUT] = direct,
+		.format[PSC_POWER] = direct,
+		.m[PSC_VOLTAGE_IN] = 1,
+		.b[PSC_VOLTAGE_IN] = 0,
+		.R[PSC_VOLTAGE_IN] = 3,
+		.m[PSC_VOLTAGE_OUT] = 1,
+		.b[PSC_VOLTAGE_OUT] = 0,
+		.R[PSC_VOLTAGE_OUT] = 3,
+		.m[PSC_CURRENT_OUT] = 1,
+		.b[PSC_CURRENT_OUT] = 0,
+		.R[PSC_CURRENT_OUT] = 3,
+		.m[PSC_POWER] = 1,
+		.b[PSC_POWER] = 0,
+		.R[PSC_POWER] = 3,
+		.m[PSC_TEMPERATURE] = 1,
+		.b[PSC_TEMPERATURE] = 0,
+		.R[PSC_TEMPERATURE] = 2,
+		.func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+		  | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_POUT,
+		.func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+		  | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
+		.func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+		  | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_POUT,
+		.func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+		  | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
+		.func[4] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.func[5] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.func[6] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.read_byte_data = max34440_read_byte_data,
+		.read_word_data = max34440_read_word_data,
+		.write_word_data = max34440_write_word_data,
+	},
+	[max34460] = {
+		.pages = 18,
+		.format[PSC_VOLTAGE_OUT] = direct,
+		.format[PSC_TEMPERATURE] = direct,
+		.m[PSC_VOLTAGE_OUT] = 1,
+		.b[PSC_VOLTAGE_OUT] = 0,
+		.R[PSC_VOLTAGE_OUT] = 3,
+		.m[PSC_TEMPERATURE] = 1,
+		.b[PSC_TEMPERATURE] = 0,
+		.R[PSC_TEMPERATURE] = 2,
+		.func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[4] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[5] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[6] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[7] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[8] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[9] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[10] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[11] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[13] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.func[14] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.func[15] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.func[16] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.func[17] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.read_byte_data = max34440_read_byte_data,
+		.read_word_data = max34440_read_word_data,
+		.write_word_data = max34440_write_word_data,
+	},
+	[max34461] = {
+		.pages = 23,
+		.format[PSC_VOLTAGE_OUT] = direct,
+		.format[PSC_TEMPERATURE] = direct,
+		.m[PSC_VOLTAGE_OUT] = 1,
+		.b[PSC_VOLTAGE_OUT] = 0,
+		.R[PSC_VOLTAGE_OUT] = 3,
+		.m[PSC_TEMPERATURE] = 1,
+		.b[PSC_TEMPERATURE] = 0,
+		.R[PSC_TEMPERATURE] = 2,
+		.func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[4] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[5] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[6] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[7] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[8] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[9] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[10] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[11] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[12] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[13] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[14] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		.func[15] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
+		/* page 16 is reserved */
+		.func[17] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.func[18] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.func[19] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.func[20] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.func[21] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+		.read_byte_data = max34440_read_byte_data,
+		.read_word_data = max34440_read_word_data,
+		.write_word_data = max34440_write_word_data,
+	},
+};
+
+static int max34440_probe(struct i2c_client *client,
+			  const struct i2c_device_id *id)
+{
+	struct max34440_data *data;
+
+	data = devm_kzalloc(&client->dev, sizeof(struct max34440_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+	data->id = id->driver_data;
+	data->info = max34440_info[id->driver_data];
+
+	return pmbus_do_probe(client, id, &data->info);
+}
+
+static const struct i2c_device_id max34440_id[] = {
+	{"max34440", max34440},
+	{"max34441", max34441},
+	{"max34446", max34446},
+	{"max34460", max34460},
+	{"max34461", max34461},
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, max34440_id);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver max34440_driver = {
+	.driver = {
+		   .name = "max34440",
+		   },
+	.probe = max34440_probe,
+	.remove = pmbus_do_remove,
+	.id_table = max34440_id,
+};
+
+module_i2c_driver(max34440_driver);
+
+MODULE_AUTHOR("Guenter Roeck");
+MODULE_DESCRIPTION("PMBus driver for Maxim MAX34440/MAX34441");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/pmbus/max8688.c b/drivers/hwmon/pmbus/max8688.c
new file mode 100644
index 0000000..f04454a
--- /dev/null
+++ b/drivers/hwmon/pmbus/max8688.c
@@ -0,0 +1,204 @@
+/*
+ * Hardware monitoring driver for Maxim MAX8688
+ *
+ * Copyright (c) 2011 Ericsson AB.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include "pmbus.h"
+
+#define MAX8688_MFR_VOUT_PEAK		0xd4
+#define MAX8688_MFR_IOUT_PEAK		0xd5
+#define MAX8688_MFR_TEMPERATURE_PEAK	0xd6
+#define MAX8688_MFG_STATUS		0xd8
+
+#define MAX8688_STATUS_OC_FAULT		(1 << 4)
+#define MAX8688_STATUS_OV_FAULT		(1 << 5)
+#define MAX8688_STATUS_OV_WARNING	(1 << 8)
+#define MAX8688_STATUS_UV_FAULT		(1 << 9)
+#define MAX8688_STATUS_UV_WARNING	(1 << 10)
+#define MAX8688_STATUS_UC_FAULT		(1 << 11)
+#define MAX8688_STATUS_OC_WARNING	(1 << 12)
+#define MAX8688_STATUS_OT_FAULT		(1 << 13)
+#define MAX8688_STATUS_OT_WARNING	(1 << 14)
+
+static int max8688_read_word_data(struct i2c_client *client, int page, int reg)
+{
+	int ret;
+
+	if (page)
+		return -ENXIO;
+
+	switch (reg) {
+	case PMBUS_VIRT_READ_VOUT_MAX:
+		ret = pmbus_read_word_data(client, 0, MAX8688_MFR_VOUT_PEAK);
+		break;
+	case PMBUS_VIRT_READ_IOUT_MAX:
+		ret = pmbus_read_word_data(client, 0, MAX8688_MFR_IOUT_PEAK);
+		break;
+	case PMBUS_VIRT_READ_TEMP_MAX:
+		ret = pmbus_read_word_data(client, 0,
+					   MAX8688_MFR_TEMPERATURE_PEAK);
+		break;
+	case PMBUS_VIRT_RESET_VOUT_HISTORY:
+	case PMBUS_VIRT_RESET_IOUT_HISTORY:
+	case PMBUS_VIRT_RESET_TEMP_HISTORY:
+		ret = 0;
+		break;
+	default:
+		ret = -ENODATA;
+		break;
+	}
+	return ret;
+}
+
+static int max8688_write_word_data(struct i2c_client *client, int page, int reg,
+				   u16 word)
+{
+	int ret;
+
+	switch (reg) {
+	case PMBUS_VIRT_RESET_VOUT_HISTORY:
+		ret = pmbus_write_word_data(client, 0, MAX8688_MFR_VOUT_PEAK,
+					    0);
+		break;
+	case PMBUS_VIRT_RESET_IOUT_HISTORY:
+		ret = pmbus_write_word_data(client, 0, MAX8688_MFR_IOUT_PEAK,
+					    0);
+		break;
+	case PMBUS_VIRT_RESET_TEMP_HISTORY:
+		ret = pmbus_write_word_data(client, 0,
+					    MAX8688_MFR_TEMPERATURE_PEAK,
+					    0xffff);
+		break;
+	default:
+		ret = -ENODATA;
+		break;
+	}
+	return ret;
+}
+
+static int max8688_read_byte_data(struct i2c_client *client, int page, int reg)
+{
+	int ret = 0;
+	int mfg_status;
+
+	if (page > 0)
+		return -ENXIO;
+
+	switch (reg) {
+	case PMBUS_STATUS_VOUT:
+		mfg_status = pmbus_read_word_data(client, 0,
+						  MAX8688_MFG_STATUS);
+		if (mfg_status < 0)
+			return mfg_status;
+		if (mfg_status & MAX8688_STATUS_UV_WARNING)
+			ret |= PB_VOLTAGE_UV_WARNING;
+		if (mfg_status & MAX8688_STATUS_UV_FAULT)
+			ret |= PB_VOLTAGE_UV_FAULT;
+		if (mfg_status & MAX8688_STATUS_OV_WARNING)
+			ret |= PB_VOLTAGE_OV_WARNING;
+		if (mfg_status & MAX8688_STATUS_OV_FAULT)
+			ret |= PB_VOLTAGE_OV_FAULT;
+		break;
+	case PMBUS_STATUS_IOUT:
+		mfg_status = pmbus_read_word_data(client, 0,
+						  MAX8688_MFG_STATUS);
+		if (mfg_status < 0)
+			return mfg_status;
+		if (mfg_status & MAX8688_STATUS_UC_FAULT)
+			ret |= PB_IOUT_UC_FAULT;
+		if (mfg_status & MAX8688_STATUS_OC_WARNING)
+			ret |= PB_IOUT_OC_WARNING;
+		if (mfg_status & MAX8688_STATUS_OC_FAULT)
+			ret |= PB_IOUT_OC_FAULT;
+		break;
+	case PMBUS_STATUS_TEMPERATURE:
+		mfg_status = pmbus_read_word_data(client, 0,
+						  MAX8688_MFG_STATUS);
+		if (mfg_status < 0)
+			return mfg_status;
+		if (mfg_status & MAX8688_STATUS_OT_WARNING)
+			ret |= PB_TEMP_OT_WARNING;
+		if (mfg_status & MAX8688_STATUS_OT_FAULT)
+			ret |= PB_TEMP_OT_FAULT;
+		break;
+	default:
+		ret = -ENODATA;
+		break;
+	}
+	return ret;
+}
+
+static struct pmbus_driver_info max8688_info = {
+	.pages = 1,
+	.format[PSC_VOLTAGE_IN] = direct,
+	.format[PSC_VOLTAGE_OUT] = direct,
+	.format[PSC_TEMPERATURE] = direct,
+	.format[PSC_CURRENT_OUT] = direct,
+	.m[PSC_VOLTAGE_IN] = 19995,
+	.b[PSC_VOLTAGE_IN] = 0,
+	.R[PSC_VOLTAGE_IN] = -1,
+	.m[PSC_VOLTAGE_OUT] = 19995,
+	.b[PSC_VOLTAGE_OUT] = 0,
+	.R[PSC_VOLTAGE_OUT] = -1,
+	.m[PSC_CURRENT_OUT] = 23109,
+	.b[PSC_CURRENT_OUT] = 0,
+	.R[PSC_CURRENT_OUT] = -2,
+	.m[PSC_TEMPERATURE] = -7612,
+	.b[PSC_TEMPERATURE] = 335,
+	.R[PSC_TEMPERATURE] = -3,
+	.func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_IOUT | PMBUS_HAVE_TEMP
+		| PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_IOUT
+		| PMBUS_HAVE_STATUS_TEMP,
+	.read_byte_data = max8688_read_byte_data,
+	.read_word_data = max8688_read_word_data,
+	.write_word_data = max8688_write_word_data,
+};
+
+static int max8688_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	return pmbus_do_probe(client, id, &max8688_info);
+}
+
+static const struct i2c_device_id max8688_id[] = {
+	{"max8688", 0},
+	{ }
+};
+
+MODULE_DEVICE_TABLE(i2c, max8688_id);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver max8688_driver = {
+	.driver = {
+		   .name = "max8688",
+		   },
+	.probe = max8688_probe,
+	.remove = pmbus_do_remove,
+	.id_table = max8688_id,
+};
+
+module_i2c_driver(max8688_driver);
+
+MODULE_AUTHOR("Guenter Roeck");
+MODULE_DESCRIPTION("PMBus driver for Maxim MAX8688");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/pmbus/pfe1100.c b/drivers/hwmon/pmbus/pfe1100.c
new file mode 100644
index 0000000..3731fa0
--- /dev/null
+++ b/drivers/hwmon/pmbus/pfe1100.c
@@ -0,0 +1,249 @@
+/*
+ * Hardware monitoring driver for PFE1100 and compatibles
+ * Based on the zl6100 driver with the following copyright:
+ *
+ * Copyright (c) 2011 Ericsson AB.
+ * Copyright (c) 2012 Guenter Roeck
+ * Copyright 2004-present Facebook. All Rights Reserved.
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/ktime.h>
+#include <linux/delay.h>
+#include "pmbus.h"
+
+enum chips { SPDFCBK_15G, SPAFCBK_14G };
+
+struct pfe1100_data {
+	int id;
+	struct pmbus_driver_info info;
+};
+
+#define to_pfe1100_data(x)  container_of(x, struct pfe1100_data, info)
+
+
+#define PFE1100_WAIT_TIME		5000	/* uS	*/
+
+static ushort delay = PFE1100_WAIT_TIME;
+module_param(delay, ushort, 0644);
+MODULE_PARM_DESC(delay, "Delay between chip accesses in uS");
+
+static const struct i2c_device_id pfe1100_id[] = {
+	{"pfe1100dc", SPDFCBK_15G},
+	{"pfe1100ac", SPAFCBK_14G},
+	{"pfe1100", 0},
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, pfe1100_id);
+
+static int pfe1100_read_word_data(struct i2c_client *client, int page, int reg)
+{
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	struct pfe1100_data *data = to_pfe1100_data(info);
+	int ret;
+
+	if (data->id != SPAFCBK_14G && page > 0)
+		return -ENXIO;
+
+	if (reg >= PMBUS_VIRT_BASE)
+		return -ENXIO;
+
+	switch (reg) {
+		case PMBUS_FAN_COMMAND_1:
+		case PMBUS_STATUS_WORD:
+		case PMBUS_READ_VIN:
+		case PMBUS_READ_IIN:
+		case PMBUS_READ_VOUT:
+		case PMBUS_READ_IOUT:
+		case PMBUS_READ_TEMPERATURE_1:
+		case PMBUS_READ_TEMPERATURE_2:
+		case PMBUS_READ_TEMPERATURE_3:
+		case PMBUS_READ_FAN_SPEED_1:
+		case PMBUS_READ_POUT:
+		case PMBUS_READ_PIN:
+		case PMBUS_MFR_LOCATION:
+			ret = pmbus_read_word_data(client, page, reg);
+			return ret;
+		default:
+			return -ENXIO;
+		}
+}
+
+static int pfe1100_read_byte_data(struct i2c_client *client, int page, int reg)
+{
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	struct pfe1100_data *data = to_pfe1100_data(info);
+	int ret;
+
+	if (data->id != SPAFCBK_14G && page > 0)
+		return -ENXIO;
+
+	switch (reg) {
+		case PMBUS_PAGE:
+		case PMBUS_OPERATION:
+		case PMBUS_CLEAR_FAULTS:
+		case PMBUS_CAPABILITY:
+		case PMBUS_VOUT_MODE:
+		case PMBUS_FAN_CONFIG_12:
+		case PMBUS_STATUS_BYTE:
+		case PMBUS_STATUS_VOUT:
+		case PMBUS_STATUS_IOUT:
+		case PMBUS_STATUS_INPUT:
+		case PMBUS_STATUS_TEMPERATURE:
+		case PMBUS_STATUS_CML:
+		case PMBUS_STATUS_OTHER:
+		case PMBUS_STATUS_MFR_SPECIFIC:
+		case PMBUS_STATUS_FAN_12:
+			ret = pmbus_read_byte_data(client, page, reg);
+			return ret;
+		default:
+			return -ENXIO;
+	}
+}
+
+static int pfe1100_write_word_data(struct i2c_client *client, int page, int reg,
+				  u16 word)
+{
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	struct pfe1100_data *data = to_pfe1100_data(info);
+	int ret;
+
+	if (data->id != SPAFCBK_14G && page > 0)
+		return -ENXIO;
+
+	if (reg >= PMBUS_VIRT_BASE)
+		return -ENXIO;
+
+	if (reg == PMBUS_FAN_COMMAND_1)
+		ret = pmbus_write_word_data(client, page, reg, word);
+	else
+		ret = -ENXIO;
+
+	return ret;
+}
+
+static int pfe1100_write_byte(struct i2c_client *client, int page, u8 value)
+{
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	struct pfe1100_data *data = to_pfe1100_data(info);
+	int ret;
+
+	if (data->id != SPAFCBK_14G && page > 0)
+		return -ENXIO;
+
+	switch (value) {
+		case PMBUS_PAGE:
+		case PMBUS_OPERATION:
+		case PMBUS_CLEAR_FAULTS:
+			ret = pmbus_write_byte(client, page, value);
+			return ret;
+		default:
+			return -ENXIO;
+	}
+}
+
+static int pfe1100_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	int ret;
+	int kind;
+	struct pfe1100_data *data;
+	struct pmbus_driver_info *info;
+	u8 device_id[I2C_SMBUS_BLOCK_MAX + 1];
+
+	if (!i2c_check_functionality(client->adapter,
+				     I2C_FUNC_SMBUS_READ_WORD_DATA
+				     | I2C_FUNC_SMBUS_READ_BLOCK_DATA))
+		return -ENODEV;
+
+	ret = i2c_smbus_read_block_data(client, PMBUS_MFR_MODEL, device_id);
+	if (ret < 0) {
+		dev_err(&client->dev, "Failed to read Manufacturer ID\n");
+		kind = SPDFCBK_15G;
+	} else {
+		device_id[ret] = 0;
+		if (strncmp(device_id, "SPAFCBK-14G", ret))
+			kind = SPDFCBK_15G;
+		else
+			kind = SPAFCBK_14G;
+		dev_notice(&client->dev, "MFR_ID is [%s]\n", device_id);
+	}
+
+	data = devm_kzalloc(&client->dev, sizeof(struct pfe1100_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->id = kind;
+
+	info = &data->info;
+	info->delay = delay;
+	if (kind == SPAFCBK_14G)
+		info->pages = 2;
+	else
+		info->pages = 1;
+
+	/*
+	 * It seems reasonable to just scan the device for supported
+	 * values, but most drivers just seem to jam these values in
+	 * there, so that's what we'll do.
+	 */
+
+	info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_IIN |
+	  PMBUS_HAVE_IOUT | PMBUS_HAVE_PIN | PMBUS_HAVE_POUT |
+	  PMBUS_HAVE_FAN12 | PMBUS_HAVE_TEMP | PMBUS_HAVE_TEMP2 |
+	  PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_IOUT |
+	  PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_STATUS_TEMP |
+	  PMBUS_HAVE_STATUS_FAN12 | PMBUS_HAVE_MFRDATA;
+
+	/* AC units have a third temperature sensor, and data from 3V input: */
+
+	if (kind == SPAFCBK_14G) {
+		info->func[0] |= PMBUS_HAVE_TEMP3;
+		info->func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_IOUT |
+		  PMBUS_HAVE_POUT | PMBUS_HAVE_STATUS_VOUT |
+		  PMBUS_HAVE_STATUS_IOUT;
+	}
+
+	info->read_word_data = pfe1100_read_word_data;
+	info->read_byte_data = pfe1100_read_byte_data;
+	info->write_word_data = pfe1100_write_word_data;
+	info->write_byte = pfe1100_write_byte;
+
+	return pmbus_do_probe(client, id, info);
+}
+
+static struct i2c_driver pfe1100_driver = {
+	.driver = {
+		   .name = "pfe1100",
+		   },
+	.probe = pfe1100_probe,
+	.remove = pmbus_do_remove,
+	.id_table = pfe1100_id,
+};
+
+module_i2c_driver(pfe1100_driver);
+
+MODULE_AUTHOR("Kevin Lahey, based on work by Guenter Roeck");
+MODULE_DESCRIPTION("PMBus driver for PFE1100");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/pmbus/pfe3000.c b/drivers/hwmon/pmbus/pfe3000.c
new file mode 100644
index 0000000..0ee2453
--- /dev/null
+++ b/drivers/hwmon/pmbus/pfe3000.c
@@ -0,0 +1,133 @@
+/*
+ * Hardware monitoring driver for PFE3000 and compatibles
+ * Based on the zl6100 driver with the following copyright:
+ *
+ * Copyright (c) 2011 Ericsson AB.
+ * Copyright (c) 2012 Guenter Roeck
+ * Copyright 2004-present Facebook. All Rights Reserved.
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/ktime.h>
+#include <linux/delay.h>
+#include <linux/i2c/pmbus.h>
+#include "pmbus.h"
+
+enum chips { PFE3000 };
+
+struct pfe3000_data {
+	struct pmbus_driver_info info;
+};
+
+#define to_pfe3000_data(x)  container_of(x, struct pfe3000_data, info)
+
+/*
+ * Other PowerOne device require a wait time;  this is included in case
+ * it is necessary for future debugging.
+ */
+
+#define PFE3000_WAIT_TIME		0	/* uS	*/
+
+static ushort delay = PFE3000_WAIT_TIME;
+module_param(delay, ushort, 0644);
+MODULE_PARM_DESC(delay, "Delay between chip accesses in uS");
+
+
+static const struct i2c_device_id pfe3000_id[] = {
+	{"pfe3000", PFE3000 },
+	{"pfe3000", 0},
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, pfe3000_id);
+
+static struct pmbus_platform_data platform_data = {
+	.flags = PMBUS_SKIP_STATUS_CHECK
+};
+
+static int pfe3000_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	struct device *dev = &client->dev;
+	struct pfe3000_data *data;
+	struct pmbus_driver_info *info;
+
+	data = devm_kzalloc(&client->dev, sizeof(struct pfe3000_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	info = &data->info;
+	info->pages = 7;
+	info->delay = delay;
+
+	/*
+	 * Skip extra status checks;  this is required to read the
+	 * VOUT_MODE register to determine the exponent to apply
+	 * to the VOUT values.
+	 */
+	dev->platform_data = &platform_data;
+
+	/* Make sure that the page isn't pointing elsewhere! */
+
+	i2c_smbus_write_byte_data(client, PMBUS_PAGE, 0);
+
+	/*
+	 * It seems reasonable to just scan the device for supported
+	 * values, but most drivers seem to jam these values in
+	 * there, so that's what we'll do.
+	 */
+
+	info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_IIN |
+	  PMBUS_HAVE_IOUT | PMBUS_HAVE_PIN | PMBUS_HAVE_POUT |
+	  PMBUS_HAVE_FAN12 | PMBUS_HAVE_TEMP | PMBUS_HAVE_TEMP2 |
+	  PMBUS_HAVE_TEMP3 | PMBUS_HAVE_STATUS_VOUT |
+	  PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_INPUT |
+	  PMBUS_HAVE_STATUS_TEMP | PMBUS_HAVE_STATUS_FAN12 |
+	  PMBUS_HAVE_MFRDATA;
+	info->func[1] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_IIN |
+	  PMBUS_HAVE_IOUT | PMBUS_HAVE_PIN | PMBUS_HAVE_POUT |
+	  PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_IOUT |
+	  PMBUS_HAVE_STATUS_TEMP | PMBUS_HAVE_STATUS_FAN12 |
+	  PMBUS_HAVE_STATUS_INPUT;
+	info->func[2] = PMBUS_HAVE_VOUT;
+	info->func[4] = PMBUS_HAVE_VOUT;
+	info->func[5] = PMBUS_HAVE_VOUT;
+	info->func[6] = PMBUS_HAVE_VOUT;
+
+	return pmbus_do_probe(client, id, info);
+}
+
+static struct i2c_driver pfe3000_driver = {
+	.driver = {
+		   .name = "pfe3000",
+		   },
+	.probe = pfe3000_probe,
+	.remove = pmbus_do_remove,
+	.id_table = pfe3000_id,
+};
+
+module_i2c_driver(pfe3000_driver);
+
+MODULE_AUTHOR("Kevin Lahey, based on work by Guenter Roeck");
+MODULE_DESCRIPTION("PMBus driver for PFE1100");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/pmbus/pmbus.c b/drivers/hwmon/pmbus/pmbus.c
new file mode 100644
index 0000000..7e91700
--- /dev/null
+++ b/drivers/hwmon/pmbus/pmbus.c
@@ -0,0 +1,217 @@
+/*
+ * Hardware monitoring driver for PMBus devices
+ *
+ * Copyright (c) 2010, 2011 Ericsson AB.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/mutex.h>
+#include <linux/i2c.h>
+#include "pmbus.h"
+
+/*
+ * Find sensor groups and status registers on each page.
+ */
+static void pmbus_find_sensor_groups(struct i2c_client *client,
+				     struct pmbus_driver_info *info)
+{
+	int page;
+
+	/* Sensors detected on page 0 only */
+	if (pmbus_check_word_register(client, 0, PMBUS_READ_VIN))
+		info->func[0] |= PMBUS_HAVE_VIN;
+	if (pmbus_check_word_register(client, 0, PMBUS_READ_VCAP))
+		info->func[0] |= PMBUS_HAVE_VCAP;
+	if (pmbus_check_word_register(client, 0, PMBUS_READ_IIN))
+		info->func[0] |= PMBUS_HAVE_IIN;
+	if (pmbus_check_word_register(client, 0, PMBUS_READ_PIN))
+		info->func[0] |= PMBUS_HAVE_PIN;
+	if (info->func[0]
+	    && pmbus_check_byte_register(client, 0, PMBUS_STATUS_INPUT))
+		info->func[0] |= PMBUS_HAVE_STATUS_INPUT;
+	if (pmbus_check_byte_register(client, 0, PMBUS_FAN_CONFIG_12) &&
+	    pmbus_check_word_register(client, 0, PMBUS_READ_FAN_SPEED_1)) {
+		info->func[0] |= PMBUS_HAVE_FAN12;
+		if (pmbus_check_byte_register(client, 0, PMBUS_STATUS_FAN_12))
+			info->func[0] |= PMBUS_HAVE_STATUS_FAN12;
+	}
+	if (pmbus_check_byte_register(client, 0, PMBUS_FAN_CONFIG_34) &&
+	    pmbus_check_word_register(client, 0, PMBUS_READ_FAN_SPEED_3)) {
+		info->func[0] |= PMBUS_HAVE_FAN34;
+		if (pmbus_check_byte_register(client, 0, PMBUS_STATUS_FAN_34))
+			info->func[0] |= PMBUS_HAVE_STATUS_FAN34;
+	}
+	if (pmbus_check_word_register(client, 0, PMBUS_READ_TEMPERATURE_1))
+		info->func[0] |= PMBUS_HAVE_TEMP;
+	if (pmbus_check_word_register(client, 0, PMBUS_READ_TEMPERATURE_2))
+		info->func[0] |= PMBUS_HAVE_TEMP2;
+	if (pmbus_check_word_register(client, 0, PMBUS_READ_TEMPERATURE_3))
+		info->func[0] |= PMBUS_HAVE_TEMP3;
+	if (info->func[0] & (PMBUS_HAVE_TEMP | PMBUS_HAVE_TEMP2
+			     | PMBUS_HAVE_TEMP3)
+	    && pmbus_check_byte_register(client, 0,
+					 PMBUS_STATUS_TEMPERATURE))
+			info->func[0] |= PMBUS_HAVE_STATUS_TEMP;
+
+	/* Sensors detected on all pages */
+	for (page = 0; page < info->pages; page++) {
+		if (pmbus_check_word_register(client, page, PMBUS_READ_VOUT)) {
+			info->func[page] |= PMBUS_HAVE_VOUT;
+			if (pmbus_check_byte_register(client, page,
+						      PMBUS_STATUS_VOUT))
+				info->func[page] |= PMBUS_HAVE_STATUS_VOUT;
+		}
+		if (pmbus_check_word_register(client, page, PMBUS_READ_IOUT)) {
+			info->func[page] |= PMBUS_HAVE_IOUT;
+			if (pmbus_check_byte_register(client, 0,
+						      PMBUS_STATUS_IOUT))
+				info->func[page] |= PMBUS_HAVE_STATUS_IOUT;
+		}
+		if (pmbus_check_word_register(client, page, PMBUS_READ_POUT))
+			info->func[page] |= PMBUS_HAVE_POUT;
+	}
+}
+
+/*
+ * Identify chip parameters.
+ */
+static int pmbus_identify(struct i2c_client *client,
+			  struct pmbus_driver_info *info)
+{
+	int ret = 0;
+
+	if (!info->pages) {
+		/*
+		 * Check if the PAGE command is supported. If it is,
+		 * keep setting the page number until it fails or until the
+		 * maximum number of pages has been reached. Assume that
+		 * this is the number of pages supported by the chip.
+		 */
+		if (pmbus_check_byte_register(client, 0, PMBUS_PAGE)) {
+			int page;
+
+			for (page = 1; page < PMBUS_PAGES; page++) {
+				if (pmbus_set_page(client, page) < 0)
+					break;
+			}
+			pmbus_set_page(client, 0);
+			info->pages = page;
+		} else {
+			info->pages = 1;
+		}
+	}
+
+	if (pmbus_check_byte_register(client, 0, PMBUS_VOUT_MODE)) {
+		int vout_mode;
+
+		vout_mode = pmbus_read_byte_data(client, 0, PMBUS_VOUT_MODE);
+		if (vout_mode >= 0 && vout_mode != 0xff) {
+			switch (vout_mode >> 5) {
+			case 0:
+				break;
+			case 1:
+				info->format[PSC_VOLTAGE_OUT] = vid;
+				break;
+			case 2:
+				info->format[PSC_VOLTAGE_OUT] = direct;
+				break;
+			default:
+				ret = -ENODEV;
+				goto abort;
+			}
+		}
+	}
+
+	/*
+	 * We should check if the COEFFICIENTS register is supported.
+	 * If it is, and the chip is configured for direct mode, we can read
+	 * the coefficients from the chip, one set per group of sensor
+	 * registers.
+	 *
+	 * To do this, we will need access to a chip which actually supports the
+	 * COEFFICIENTS command, since the command is too complex to implement
+	 * without testing it. Until then, abort if a chip configured for direct
+	 * mode was detected.
+	 */
+	if (info->format[PSC_VOLTAGE_OUT] == direct) {
+		ret = -ENODEV;
+		goto abort;
+	}
+
+	/* Try to find sensor groups  */
+	pmbus_find_sensor_groups(client, info);
+abort:
+	return ret;
+}
+
+static int pmbus_probe(struct i2c_client *client,
+		       const struct i2c_device_id *id)
+{
+	struct pmbus_driver_info *info;
+
+	info = devm_kzalloc(&client->dev, sizeof(struct pmbus_driver_info),
+			    GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
+	info->pages = id->driver_data;
+	info->identify = pmbus_identify;
+
+	return pmbus_do_probe(client, id, info);
+}
+
+/*
+ * Use driver_data to set the number of pages supported by the chip.
+ */
+static const struct i2c_device_id pmbus_id[] = {
+	{"adp4000", 1},
+	{"bmr453", 1},
+	{"bmr454", 1},
+	{"mdt040", 1},
+	{"ncp4200", 1},
+	{"ncp4208", 1},
+	{"pdt003", 1},
+	{"pdt006", 1},
+	{"pdt012", 1},
+	{"pmbus", 0},
+	{"tps40400", 1},
+	{"tps40422", 2},
+	{"udt020", 1},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, pmbus_id);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver pmbus_driver = {
+	.driver = {
+		   .name = "pmbus",
+		   },
+	.probe = pmbus_probe,
+	.remove = pmbus_do_remove,
+	.id_table = pmbus_id,
+};
+
+module_i2c_driver(pmbus_driver);
+
+MODULE_AUTHOR("Guenter Roeck");
+MODULE_DESCRIPTION("Generic PMBus driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/pmbus/pmbus.h b/drivers/hwmon/pmbus/pmbus.h
new file mode 100644
index 0000000..a6b5fba
--- /dev/null
+++ b/drivers/hwmon/pmbus/pmbus.h
@@ -0,0 +1,413 @@
+/*
+ * pmbus.h - Common defines and structures for PMBus devices
+ *
+ * Copyright (c) 2010, 2011 Ericsson AB.
+ * Copyright (c) 2012 Guenter Roeck
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef PMBUS_H
+#define PMBUS_H
+
+/* KML:  Hacks to make this work on 2.6.28.   Ugh. */
+
+#define DIV_ROUND_CLOSEST(x, divisor)(                  \
+{                                                       \
+	typeof(x) __x = x;                              \
+	typeof(divisor) __d = divisor;                  \
+	(((typeof(x))-1) > 0 ||                         \
+	((typeof(divisor))-1) > 0 || (__x) > 0) ?      \
+	(((__x) + ((__d) / 2)) / (__d)) :       \
+	(((__x) - ((__d) / 2)) / (__d));        \
+}                                                       \
+)
+
+
+#define module_i2c_driver(__i2c_driver) \
+	static int __init __i2c_driver##_init(void) {return i2c_add_driver(&__i2c_driver);} \
+	static void __exit __i2c_driver##_exit(void) {i2c_del_driver(&__i2c_driver);} \
+module_init(__i2c_driver##_init); \
+module_exit(__i2c_driver##_exit);
+
+/* KML:  Those are all the hacks needed, surprisingly. */
+
+/*
+ * Registers
+ */
+#define PMBUS_PAGE			0x00
+#define PMBUS_OPERATION			0x01
+#define PMBUS_ON_OFF_CONFIG		0x02
+#define PMBUS_CLEAR_FAULTS		0x03
+#define PMBUS_PHASE			0x04
+
+#define PMBUS_CAPABILITY		0x19
+#define PMBUS_QUERY			0x1A
+
+#define PMBUS_VOUT_MODE			0x20
+#define PMBUS_VOUT_COMMAND		0x21
+#define PMBUS_VOUT_TRIM			0x22
+#define PMBUS_VOUT_CAL_OFFSET		0x23
+#define PMBUS_VOUT_MAX			0x24
+#define PMBUS_VOUT_MARGIN_HIGH		0x25
+#define PMBUS_VOUT_MARGIN_LOW		0x26
+#define PMBUS_VOUT_TRANSITION_RATE	0x27
+#define PMBUS_VOUT_DROOP		0x28
+#define PMBUS_VOUT_SCALE_LOOP		0x29
+#define PMBUS_VOUT_SCALE_MONITOR	0x2A
+
+#define PMBUS_COEFFICIENTS		0x30
+#define PMBUS_POUT_MAX			0x31
+
+#define PMBUS_FAN_CONFIG_12		0x3A
+#define PMBUS_FAN_COMMAND_1		0x3B
+#define PMBUS_FAN_COMMAND_2		0x3C
+#define PMBUS_FAN_CONFIG_34		0x3D
+#define PMBUS_FAN_COMMAND_3		0x3E
+#define PMBUS_FAN_COMMAND_4		0x3F
+
+#define PMBUS_VOUT_OV_FAULT_LIMIT	0x40
+#define PMBUS_VOUT_OV_FAULT_RESPONSE	0x41
+#define PMBUS_VOUT_OV_WARN_LIMIT	0x42
+#define PMBUS_VOUT_UV_WARN_LIMIT	0x43
+#define PMBUS_VOUT_UV_FAULT_LIMIT	0x44
+#define PMBUS_VOUT_UV_FAULT_RESPONSE	0x45
+#define PMBUS_IOUT_OC_FAULT_LIMIT	0x46
+#define PMBUS_IOUT_OC_FAULT_RESPONSE	0x47
+#define PMBUS_IOUT_OC_LV_FAULT_LIMIT	0x48
+#define PMBUS_IOUT_OC_LV_FAULT_RESPONSE	0x49
+#define PMBUS_IOUT_OC_WARN_LIMIT	0x4A
+#define PMBUS_IOUT_UC_FAULT_LIMIT	0x4B
+#define PMBUS_IOUT_UC_FAULT_RESPONSE	0x4C
+
+#define PMBUS_OT_FAULT_LIMIT		0x4F
+#define PMBUS_OT_FAULT_RESPONSE		0x50
+#define PMBUS_OT_WARN_LIMIT		0x51
+#define PMBUS_UT_WARN_LIMIT		0x52
+#define PMBUS_UT_FAULT_LIMIT		0x53
+#define PMBUS_UT_FAULT_RESPONSE		0x54
+#define PMBUS_VIN_OV_FAULT_LIMIT	0x55
+#define PMBUS_VIN_OV_FAULT_RESPONSE	0x56
+#define PMBUS_VIN_OV_WARN_LIMIT		0x57
+#define PMBUS_VIN_UV_WARN_LIMIT		0x58
+#define PMBUS_VIN_UV_FAULT_LIMIT	0x59
+
+#define PMBUS_IIN_OC_FAULT_LIMIT	0x5B
+#define PMBUS_IIN_OC_WARN_LIMIT		0x5D
+
+#define PMBUS_POUT_OP_FAULT_LIMIT	0x68
+#define PMBUS_POUT_OP_WARN_LIMIT	0x6A
+#define PMBUS_PIN_OP_WARN_LIMIT		0x6B
+
+#define PMBUS_STATUS_BYTE		0x78
+#define PMBUS_STATUS_WORD		0x79
+#define PMBUS_STATUS_VOUT		0x7A
+#define PMBUS_STATUS_IOUT		0x7B
+#define PMBUS_STATUS_INPUT		0x7C
+#define PMBUS_STATUS_TEMPERATURE	0x7D
+#define PMBUS_STATUS_CML		0x7E
+#define PMBUS_STATUS_OTHER		0x7F
+#define PMBUS_STATUS_MFR_SPECIFIC	0x80
+#define PMBUS_STATUS_FAN_12		0x81
+#define PMBUS_STATUS_FAN_34		0x82
+
+#define PMBUS_READ_VIN			0x88
+#define PMBUS_READ_IIN			0x89
+#define PMBUS_READ_VCAP			0x8A
+#define PMBUS_READ_VOUT			0x8B
+#define PMBUS_READ_IOUT			0x8C
+#define PMBUS_READ_TEMPERATURE_1	0x8D
+#define PMBUS_READ_TEMPERATURE_2	0x8E
+#define PMBUS_READ_TEMPERATURE_3	0x8F
+#define PMBUS_READ_FAN_SPEED_1		0x90
+#define PMBUS_READ_FAN_SPEED_2		0x91
+#define PMBUS_READ_FAN_SPEED_3		0x92
+#define PMBUS_READ_FAN_SPEED_4		0x93
+#define PMBUS_READ_DUTY_CYCLE		0x94
+#define PMBUS_READ_FREQUENCY		0x95
+#define PMBUS_READ_POUT			0x96
+#define PMBUS_READ_PIN			0x97
+
+#define PMBUS_REVISION			0x98
+#define PMBUS_MFR_ID			0x99
+#define PMBUS_MFR_MODEL			0x9A
+#define PMBUS_MFR_REVISION		0x9B
+#define PMBUS_MFR_LOCATION		0x9C
+#define PMBUS_MFR_DATE			0x9D
+#define PMBUS_MFR_SERIAL		0x9E
+
+/*
+ * Virtual registers.
+ * Useful to support attributes which are not supported by standard PMBus
+ * registers but exist as manufacturer specific registers on individual chips.
+ * Must be mapped to real registers in device specific code.
+ *
+ * Semantics:
+ * Virtual registers are all word size.
+ * READ registers are read-only; writes are either ignored or return an error.
+ * RESET registers are read/write. Reading reset registers returns zero
+ * (used for detection), writing any value causes the associated history to be
+ * reset.
+ * Virtual registers have to be handled in device specific driver code. Chip
+ * driver code returns non-negative register values if a virtual register is
+ * supported, or a negative error code if not. The chip driver may return
+ * -ENODATA or any other error code in this case, though an error code other
+ * than -ENODATA is handled more efficiently and thus preferred. Either case,
+ * the calling PMBus core code will abort if the chip driver returns an error
+ * code when reading or writing virtual registers.
+ */
+#define PMBUS_VIRT_BASE			0x100
+#define PMBUS_VIRT_READ_TEMP_AVG	(PMBUS_VIRT_BASE + 0)
+#define PMBUS_VIRT_READ_TEMP_MIN	(PMBUS_VIRT_BASE + 1)
+#define PMBUS_VIRT_READ_TEMP_MAX	(PMBUS_VIRT_BASE + 2)
+#define PMBUS_VIRT_RESET_TEMP_HISTORY	(PMBUS_VIRT_BASE + 3)
+#define PMBUS_VIRT_READ_VIN_AVG		(PMBUS_VIRT_BASE + 4)
+#define PMBUS_VIRT_READ_VIN_MIN		(PMBUS_VIRT_BASE + 5)
+#define PMBUS_VIRT_READ_VIN_MAX		(PMBUS_VIRT_BASE + 6)
+#define PMBUS_VIRT_RESET_VIN_HISTORY	(PMBUS_VIRT_BASE + 7)
+#define PMBUS_VIRT_READ_IIN_AVG		(PMBUS_VIRT_BASE + 8)
+#define PMBUS_VIRT_READ_IIN_MIN		(PMBUS_VIRT_BASE + 9)
+#define PMBUS_VIRT_READ_IIN_MAX		(PMBUS_VIRT_BASE + 10)
+#define PMBUS_VIRT_RESET_IIN_HISTORY	(PMBUS_VIRT_BASE + 11)
+#define PMBUS_VIRT_READ_PIN_AVG		(PMBUS_VIRT_BASE + 12)
+#define PMBUS_VIRT_READ_PIN_MAX		(PMBUS_VIRT_BASE + 13)
+#define PMBUS_VIRT_RESET_PIN_HISTORY	(PMBUS_VIRT_BASE + 14)
+#define PMBUS_VIRT_READ_POUT_AVG	(PMBUS_VIRT_BASE + 15)
+#define PMBUS_VIRT_READ_POUT_MAX	(PMBUS_VIRT_BASE + 16)
+#define PMBUS_VIRT_RESET_POUT_HISTORY	(PMBUS_VIRT_BASE + 17)
+#define PMBUS_VIRT_READ_VOUT_AVG	(PMBUS_VIRT_BASE + 18)
+#define PMBUS_VIRT_READ_VOUT_MIN	(PMBUS_VIRT_BASE + 19)
+#define PMBUS_VIRT_READ_VOUT_MAX	(PMBUS_VIRT_BASE + 20)
+#define PMBUS_VIRT_RESET_VOUT_HISTORY	(PMBUS_VIRT_BASE + 21)
+#define PMBUS_VIRT_READ_IOUT_AVG	(PMBUS_VIRT_BASE + 22)
+#define PMBUS_VIRT_READ_IOUT_MIN	(PMBUS_VIRT_BASE + 23)
+#define PMBUS_VIRT_READ_IOUT_MAX	(PMBUS_VIRT_BASE + 24)
+#define PMBUS_VIRT_RESET_IOUT_HISTORY	(PMBUS_VIRT_BASE + 25)
+#define PMBUS_VIRT_READ_TEMP2_AVG	(PMBUS_VIRT_BASE + 26)
+#define PMBUS_VIRT_READ_TEMP2_MIN	(PMBUS_VIRT_BASE + 27)
+#define PMBUS_VIRT_READ_TEMP2_MAX	(PMBUS_VIRT_BASE + 28)
+#define PMBUS_VIRT_RESET_TEMP2_HISTORY	(PMBUS_VIRT_BASE + 29)
+
+#define PMBUS_VIRT_READ_VMON		(PMBUS_VIRT_BASE + 30)
+#define PMBUS_VIRT_VMON_UV_WARN_LIMIT	(PMBUS_VIRT_BASE + 31)
+#define PMBUS_VIRT_VMON_OV_WARN_LIMIT	(PMBUS_VIRT_BASE + 32)
+#define PMBUS_VIRT_VMON_UV_FAULT_LIMIT	(PMBUS_VIRT_BASE + 33)
+#define PMBUS_VIRT_VMON_OV_FAULT_LIMIT	(PMBUS_VIRT_BASE + 34)
+#define PMBUS_VIRT_STATUS_VMON		(PMBUS_VIRT_BASE + 35)
+
+/*
+ * CAPABILITY
+ */
+#define PB_CAPABILITY_SMBALERT		(1<<4)
+#define PB_CAPABILITY_ERROR_CHECK	(1<<7)
+
+/*
+ * VOUT_MODE
+ */
+#define PB_VOUT_MODE_MODE_MASK		0xe0
+#define PB_VOUT_MODE_PARAM_MASK		0x1f
+
+#define PB_VOUT_MODE_LINEAR		0x00
+#define PB_VOUT_MODE_VID		0x20
+#define PB_VOUT_MODE_DIRECT		0x40
+
+/*
+ * Fan configuration
+ */
+#define PB_FAN_2_PULSE_MASK		((1 << 0) | (1 << 1))
+#define PB_FAN_2_RPM			(1 << 2)
+#define PB_FAN_2_INSTALLED		(1 << 3)
+#define PB_FAN_1_PULSE_MASK		((1 << 4) | (1 << 5))
+#define PB_FAN_1_RPM			(1 << 6)
+#define PB_FAN_1_INSTALLED		(1 << 7)
+
+/*
+ * STATUS_BYTE, STATUS_WORD (lower)
+ */
+#define PB_STATUS_NONE_ABOVE		(1<<0)
+#define PB_STATUS_CML			(1<<1)
+#define PB_STATUS_TEMPERATURE		(1<<2)
+#define PB_STATUS_VIN_UV		(1<<3)
+#define PB_STATUS_IOUT_OC		(1<<4)
+#define PB_STATUS_VOUT_OV		(1<<5)
+#define PB_STATUS_OFF			(1<<6)
+#define PB_STATUS_BUSY			(1<<7)
+
+/*
+ * STATUS_WORD (upper)
+ */
+#define PB_STATUS_UNKNOWN		(1<<8)
+#define PB_STATUS_OTHER			(1<<9)
+#define PB_STATUS_FANS			(1<<10)
+#define PB_STATUS_POWER_GOOD_N		(1<<11)
+#define PB_STATUS_WORD_MFR		(1<<12)
+#define PB_STATUS_INPUT			(1<<13)
+#define PB_STATUS_IOUT_POUT		(1<<14)
+#define PB_STATUS_VOUT			(1<<15)
+
+/*
+ * STATUS_IOUT
+ */
+#define PB_POUT_OP_WARNING		(1<<0)
+#define PB_POUT_OP_FAULT		(1<<1)
+#define PB_POWER_LIMITING		(1<<2)
+#define PB_CURRENT_SHARE_FAULT		(1<<3)
+#define PB_IOUT_UC_FAULT		(1<<4)
+#define PB_IOUT_OC_WARNING		(1<<5)
+#define PB_IOUT_OC_LV_FAULT		(1<<6)
+#define PB_IOUT_OC_FAULT		(1<<7)
+
+/*
+ * STATUS_VOUT, STATUS_INPUT
+ */
+#define PB_VOLTAGE_UV_FAULT		(1<<4)
+#define PB_VOLTAGE_UV_WARNING		(1<<5)
+#define PB_VOLTAGE_OV_WARNING		(1<<6)
+#define PB_VOLTAGE_OV_FAULT		(1<<7)
+
+/*
+ * STATUS_INPUT
+ */
+#define PB_PIN_OP_WARNING		(1<<0)
+#define PB_IIN_OC_WARNING		(1<<1)
+#define PB_IIN_OC_FAULT			(1<<2)
+
+/*
+ * STATUS_TEMPERATURE
+ */
+#define PB_TEMP_UT_FAULT		(1<<4)
+#define PB_TEMP_UT_WARNING		(1<<5)
+#define PB_TEMP_OT_WARNING		(1<<6)
+#define PB_TEMP_OT_FAULT		(1<<7)
+
+/*
+ * STATUS_FAN
+ */
+#define PB_FAN_AIRFLOW_WARNING		(1<<0)
+#define PB_FAN_AIRFLOW_FAULT		(1<<1)
+#define PB_FAN_FAN2_SPEED_OVERRIDE	(1<<2)
+#define PB_FAN_FAN1_SPEED_OVERRIDE	(1<<3)
+#define PB_FAN_FAN2_WARNING		(1<<4)
+#define PB_FAN_FAN1_WARNING		(1<<5)
+#define PB_FAN_FAN2_FAULT		(1<<6)
+#define PB_FAN_FAN1_FAULT		(1<<7)
+
+/*
+ * CML_FAULT_STATUS
+ */
+#define PB_CML_FAULT_OTHER_MEM_LOGIC	(1<<0)
+#define PB_CML_FAULT_OTHER_COMM		(1<<1)
+#define PB_CML_FAULT_PROCESSOR		(1<<3)
+#define PB_CML_FAULT_MEMORY		(1<<4)
+#define PB_CML_FAULT_PACKET_ERROR	(1<<5)
+#define PB_CML_FAULT_INVALID_DATA	(1<<6)
+#define PB_CML_FAULT_INVALID_COMMAND	(1<<7)
+
+enum pmbus_sensor_classes {
+	PSC_VOLTAGE_IN = 0,
+	PSC_VOLTAGE_OUT,
+	PSC_CURRENT_IN,
+	PSC_CURRENT_OUT,
+	PSC_POWER,
+	PSC_TEMPERATURE,
+	PSC_FAN,
+	PSC_NUM_CLASSES		/* Number of power sensor classes */
+};
+
+#define PMBUS_PAGES	32	/* Per PMBus specification */
+
+/* Functionality bit mask */
+#define PMBUS_HAVE_VIN		(1 << 0)
+#define PMBUS_HAVE_VCAP		(1 << 1)
+#define PMBUS_HAVE_VOUT		(1 << 2)
+#define PMBUS_HAVE_IIN		(1 << 3)
+#define PMBUS_HAVE_IOUT		(1 << 4)
+#define PMBUS_HAVE_PIN		(1 << 5)
+#define PMBUS_HAVE_POUT		(1 << 6)
+#define PMBUS_HAVE_FAN12	(1 << 7)
+#define PMBUS_HAVE_FAN34	(1 << 8)
+#define PMBUS_HAVE_TEMP		(1 << 9)
+#define PMBUS_HAVE_TEMP2	(1 << 10)
+#define PMBUS_HAVE_TEMP3	(1 << 11)
+#define PMBUS_HAVE_STATUS_VOUT	(1 << 12)
+#define PMBUS_HAVE_STATUS_IOUT	(1 << 13)
+#define PMBUS_HAVE_STATUS_INPUT	(1 << 14)
+#define PMBUS_HAVE_STATUS_TEMP	(1 << 15)
+#define PMBUS_HAVE_STATUS_FAN12	(1 << 16)
+#define PMBUS_HAVE_STATUS_FAN34	(1 << 17)
+#define PMBUS_HAVE_VMON		(1 << 18)
+#define PMBUS_HAVE_STATUS_VMON	(1 << 19)
+#define PMBUS_HAVE_MFRDATA	(1 << 20)
+
+enum pmbus_data_format { linear = 0, direct, vid };
+
+struct pmbus_driver_info {
+	int pages;		/* Total number of pages */
+	ushort delay;
+	enum pmbus_data_format format[PSC_NUM_CLASSES];
+	/*
+	 * Support one set of coefficients for each sensor type
+	 * Used for chips providing data in direct mode.
+	 */
+	int m[PSC_NUM_CLASSES];	/* mantissa for direct data format */
+	int b[PSC_NUM_CLASSES];	/* offset */
+	int R[PSC_NUM_CLASSES];	/* exponent */
+
+	u32 func[PMBUS_PAGES];	/* Functionality, per page */
+	/*
+	 * The following functions map manufacturing specific register values
+	 * to PMBus standard register values. Specify only if mapping is
+	 * necessary.
+	 * Functions return the register value (read) or zero (write) if
+	 * successful. A return value of -ENODATA indicates that there is no
+	 * manufacturer specific register, but that a standard PMBus register
+	 * may exist. Any other negative return value indicates that the
+	 * register does not exist, and that no attempt should be made to read
+	 * the standard register.
+	 */
+	int (*read_byte_data)(struct i2c_client *client, int page, int reg);
+	int (*read_word_data)(struct i2c_client *client, int page, int reg);
+	int (*write_word_data)(struct i2c_client *client, int page, int reg,
+			       u16 word);
+	int (*write_byte)(struct i2c_client *client, int page, u8 value);
+	/*
+	 * The identify function determines supported PMBus functionality.
+	 * This function is only necessary if a chip driver supports multiple
+	 * chips, and the chip functionality is not pre-determined.
+	 */
+	int (*identify)(struct i2c_client *client,
+			struct pmbus_driver_info *info);
+};
+
+/* Function declarations */
+
+void pmbus_wait(struct i2c_client *client);
+void pmbus_update_wait(struct i2c_client *client);
+void pmbus_clear_cache(struct i2c_client *client);
+int pmbus_set_page(struct i2c_client *client, u8 page);
+int pmbus_read_word_data(struct i2c_client *client, u8 page, u8 reg);
+int pmbus_write_word_data(struct i2c_client *client, u8 page, u8 reg, u16 word);
+int pmbus_read_byte_data(struct i2c_client *client, int page, u8 reg);
+int pmbus_write_byte(struct i2c_client *client, int page, u8 value);
+void pmbus_clear_faults(struct i2c_client *client);
+bool pmbus_check_byte_register(struct i2c_client *client, int page, int reg);
+bool pmbus_check_word_register(struct i2c_client *client, int page, int reg);
+int pmbus_do_probe(struct i2c_client *client, const struct i2c_device_id *id,
+		   struct pmbus_driver_info *info);
+int pmbus_do_remove(struct i2c_client *client);
+const struct pmbus_driver_info *pmbus_get_driver_info(struct i2c_client
+						      *client);
+
+#endif /* PMBUS_H */
diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
new file mode 100644
index 0000000..d547fc8
--- /dev/null
+++ b/drivers/hwmon/pmbus/pmbus_core.c
@@ -0,0 +1,1940 @@
+/*
+ * Hardware monitoring driver for PMBus devices
+ *
+ * Copyright (c) 2010, 2011 Ericsson AB.
+ * Copyright (c) 2012 Guenter Roeck
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/jiffies.h>
+#include <linux/delay.h>
+#include <linux/i2c/pmbus.h>
+#include "pmbus.h"
+
+/*
+ * Number of additional attribute pointers to allocate
+ * with each call to krealloc
+ */
+#define PMBUS_ATTR_ALLOC_SIZE	32
+
+/*
+ * Index into status register array, per status register group
+ */
+#define PB_STATUS_BASE		0
+#define PB_STATUS_VOUT_BASE	(PB_STATUS_BASE + PMBUS_PAGES)
+#define PB_STATUS_IOUT_BASE	(PB_STATUS_VOUT_BASE + PMBUS_PAGES)
+#define PB_STATUS_FAN_BASE	(PB_STATUS_IOUT_BASE + PMBUS_PAGES)
+#define PB_STATUS_FAN34_BASE	(PB_STATUS_FAN_BASE + PMBUS_PAGES)
+#define PB_STATUS_TEMP_BASE	(PB_STATUS_FAN34_BASE + PMBUS_PAGES)
+#define PB_STATUS_INPUT_BASE	(PB_STATUS_TEMP_BASE + PMBUS_PAGES)
+#define PB_STATUS_VMON_BASE	(PB_STATUS_INPUT_BASE + 1)
+
+#define PB_NUM_STATUS_REG	(PB_STATUS_VMON_BASE + 1)
+
+#define PMBUS_NAME_SIZE		24
+
+struct pmbus_sensor {
+	struct pmbus_sensor *next;
+	char name[PMBUS_NAME_SIZE];	/* sysfs sensor name */
+	struct device_attribute attribute;
+	u8 page;		/* page number */
+	u16 reg;		/* register */
+	enum pmbus_sensor_classes class;	/* sensor class */
+	bool update;		/* runtime sensor update needed */
+	int data;		/* Sensor data.
+				   Negative if there was a read error */
+};
+#define to_pmbus_sensor(_attr) \
+	container_of(_attr, struct pmbus_sensor, attribute)
+
+struct pmbus_boolean {
+	char name[PMBUS_NAME_SIZE];	/* sysfs boolean name */
+	struct sensor_device_attribute attribute;
+	struct pmbus_sensor *s1;
+	struct pmbus_sensor *s2;
+};
+#define to_pmbus_boolean(_attr) \
+	container_of(_attr, struct pmbus_boolean, attribute)
+
+struct pmbus_label {
+	char name[PMBUS_NAME_SIZE];	/* sysfs label name */
+	struct device_attribute attribute;
+	char label[PMBUS_NAME_SIZE];	/* label */
+};
+#define to_pmbus_label(_attr) \
+	container_of(_attr, struct pmbus_label, attribute)
+
+struct pmbus_data {
+	struct device *dev;
+	struct device *hwmon_dev;
+
+	u32 flags;		/* from platform data */
+
+	int exponent;		/* linear mode: exponent for output voltages */
+
+	const struct pmbus_driver_info *info;
+
+	int max_attributes;
+	int num_attributes;
+	struct attribute_group group;
+
+	struct pmbus_sensor *sensors;
+
+	struct mutex update_lock;
+	bool valid;
+	unsigned long last_updated;	/* in jiffies */
+
+	ktime_t access;
+
+	/*
+	 * A single status register covers multiple attributes,
+	 * so we keep them all together.
+	 */
+	u8 status[PB_NUM_STATUS_REG];
+	u8 status_register;
+
+	u8 currpage;
+};
+
+/* Some chips need a delay between accesses */
+void pmbus_wait(struct i2c_client *client)
+{
+	struct pmbus_data *data = i2c_get_clientdata(client);
+	const struct pmbus_driver_info *info = data->info;
+
+	if (info->delay) {
+		s64 delta = ktime_us_delta(ktime_get(), data->access);
+		if (delta < info->delay)
+			/*
+			 * Note that udelay is busy waiting.  msleep is
+			 * quite a bit slower (it actually takes a
+			 * minimum of 20ms), but doesn't busy wait.  Hmmm.
+			 */
+			udelay(info->delay - delta);
+	}
+}
+EXPORT_SYMBOL_GPL(pmbus_wait);
+
+void pmbus_update_wait(struct i2c_client *client)
+{
+	struct pmbus_data *data = i2c_get_clientdata(client);
+	const struct pmbus_driver_info *info = data->info;
+
+	if (info->delay)
+		data->access = ktime_get();
+}
+EXPORT_SYMBOL_GPL(pmbus_update_wait);
+
+void pmbus_clear_cache(struct i2c_client *client)
+{
+	struct pmbus_data *data = i2c_get_clientdata(client);
+
+	data->valid = false;
+}
+EXPORT_SYMBOL_GPL(pmbus_clear_cache);
+
+int pmbus_set_page(struct i2c_client *client, u8 page)
+{
+	struct pmbus_data *data = i2c_get_clientdata(client);
+	int rv = 0;
+	int newpage;
+
+	if (page != data->currpage) {
+		pmbus_wait(client);
+		rv = i2c_smbus_write_byte_data(client, PMBUS_PAGE, page);
+		pmbus_update_wait(client);
+		pmbus_wait(client);
+		newpage = i2c_smbus_read_byte_data(client, PMBUS_PAGE);
+		pmbus_update_wait(client);
+		if (newpage != page)
+			rv = -EIO;
+		else
+			data->currpage = page;
+	}
+	return rv;
+}
+EXPORT_SYMBOL_GPL(pmbus_set_page);
+
+int pmbus_write_byte(struct i2c_client *client, int page, u8 value)
+{
+	int rv;
+
+	if (page >= 0) {
+		rv = pmbus_set_page(client, page);
+		if (rv < 0)
+			return rv;
+	}
+
+	pmbus_wait(client);
+	rv = i2c_smbus_write_byte(client, value);
+	pmbus_update_wait(client);
+	return rv;
+}
+EXPORT_SYMBOL_GPL(pmbus_write_byte);
+
+/*
+ * _pmbus_write_byte() is similar to pmbus_write_byte(), but checks if
+ * a device specific mapping funcion exists and calls it if necessary.
+ */
+static int _pmbus_write_byte(struct i2c_client *client, int page, u8 value)
+{
+	struct pmbus_data *data = i2c_get_clientdata(client);
+	const struct pmbus_driver_info *info = data->info;
+	int status;
+
+	if (info->write_byte) {
+		status = info->write_byte(client, page, value);
+		if (status != -ENODATA)
+			return status;
+	}
+	return pmbus_write_byte(client, page, value);
+}
+
+int pmbus_write_word_data(struct i2c_client *client, u8 page, u8 reg, u16 word)
+{
+	int rv;
+
+	rv = pmbus_set_page(client, page);
+	if (rv < 0)
+		return rv;
+
+	pmbus_wait(client);
+	rv = i2c_smbus_write_word_data(client, reg, word);
+	pmbus_update_wait(client);
+	return rv;
+}
+EXPORT_SYMBOL_GPL(pmbus_write_word_data);
+
+/*
+ * _pmbus_write_word_data() is similar to pmbus_write_word_data(), but checks if
+ * a device specific mapping function exists and calls it if necessary.
+ */
+static int _pmbus_write_word_data(struct i2c_client *client, int page, int reg,
+				  u16 word)
+{
+	struct pmbus_data *data = i2c_get_clientdata(client);
+	const struct pmbus_driver_info *info = data->info;
+	int status;
+
+	if (info->write_word_data) {
+		status = info->write_word_data(client, page, reg, word);
+		if (status != -ENODATA)
+			return status;
+	}
+	if (reg >= PMBUS_VIRT_BASE)
+		return -ENXIO;
+	return pmbus_write_word_data(client, page, reg, word);
+}
+
+int pmbus_read_word_data(struct i2c_client *client, u8 page, u8 reg)
+{
+	int rv;
+
+	rv = pmbus_set_page(client, page);
+	if (rv < 0)
+		return rv;
+
+	pmbus_wait(client);
+	rv = i2c_smbus_read_word_data(client, reg);
+	pmbus_update_wait(client);
+	return rv;
+}
+EXPORT_SYMBOL_GPL(pmbus_read_word_data);
+
+/*
+ * _pmbus_read_word_data() is similar to pmbus_read_word_data(), but checks if
+ * a device specific mapping function exists and calls it if necessary.
+ */
+static int _pmbus_read_word_data(struct i2c_client *client, int page, int reg)
+{
+	struct pmbus_data *data = i2c_get_clientdata(client);
+	const struct pmbus_driver_info *info = data->info;
+	int status;
+
+	if (info->read_word_data) {
+		status = info->read_word_data(client, page, reg);
+		if (status != -ENODATA)
+			return status;
+	}
+	if (reg >= PMBUS_VIRT_BASE)
+		return -ENXIO;
+	return pmbus_read_word_data(client, page, reg);
+}
+
+int pmbus_read_byte_data(struct i2c_client *client, int page, u8 reg)
+{
+	int rv;
+
+	if (page >= 0) {
+		rv = pmbus_set_page(client, page);
+		if (rv < 0)
+			return rv;
+	}
+
+	pmbus_wait(client);
+	rv = i2c_smbus_read_byte_data(client, reg);
+	pmbus_update_wait(client);
+	return rv;
+}
+EXPORT_SYMBOL_GPL(pmbus_read_byte_data);
+
+/*
+ * _pmbus_read_byte_data() is similar to pmbus_read_byte_data(), but checks if
+ * a device specific mapping function exists and calls it if necessary.
+ */
+static int _pmbus_read_byte_data(struct i2c_client *client, int page, int reg)
+{
+	struct pmbus_data *data = i2c_get_clientdata(client);
+	const struct pmbus_driver_info *info = data->info;
+	int status;
+
+	if (info->read_byte_data) {
+		status = info->read_byte_data(client, page, reg);
+		if (status != -ENODATA)
+			return status;
+	}
+	return pmbus_read_byte_data(client, page, reg);
+}
+
+static void pmbus_clear_fault_page(struct i2c_client *client, int page)
+{
+	_pmbus_write_byte(client, page, PMBUS_CLEAR_FAULTS);
+}
+
+void pmbus_clear_faults(struct i2c_client *client)
+{
+	struct pmbus_data *data = i2c_get_clientdata(client);
+	int i;
+
+	for (i = 0; i < data->info->pages; i++)
+		pmbus_clear_fault_page(client, i);
+}
+EXPORT_SYMBOL_GPL(pmbus_clear_faults);
+
+static int pmbus_check_status_cml(struct i2c_client *client)
+{
+	struct pmbus_data *data = i2c_get_clientdata(client);
+	int status, status2;
+
+	status = _pmbus_read_byte_data(client, -1, data->status_register);
+	if (status < 0 || (status & PB_STATUS_CML)) {
+		status2 = _pmbus_read_byte_data(client, -1, PMBUS_STATUS_CML);
+		if (status2 < 0 || (status2 & PB_CML_FAULT_INVALID_COMMAND))
+			return -EIO;
+	}
+	return 0;
+}
+
+static bool pmbus_check_register(struct i2c_client *client,
+				 int (*func)(struct i2c_client *client,
+					     int page, int reg),
+				 int page, int reg)
+{
+	int rv;
+	struct pmbus_data *data = i2c_get_clientdata(client);
+
+	rv = func(client, page, reg);
+	if (rv >= 0 && !(data->flags & PMBUS_SKIP_STATUS_CHECK))
+		rv = pmbus_check_status_cml(client);
+	pmbus_clear_fault_page(client, -1);
+	return rv >= 0;
+}
+
+bool pmbus_check_byte_register(struct i2c_client *client, int page, int reg)
+{
+	return pmbus_check_register(client, _pmbus_read_byte_data, page, reg);
+}
+EXPORT_SYMBOL_GPL(pmbus_check_byte_register);
+
+bool pmbus_check_word_register(struct i2c_client *client, int page, int reg)
+{
+	return pmbus_check_register(client, _pmbus_read_word_data, page, reg);
+}
+EXPORT_SYMBOL_GPL(pmbus_check_word_register);
+
+const struct pmbus_driver_info *pmbus_get_driver_info(struct i2c_client *client)
+{
+	struct pmbus_data *data = i2c_get_clientdata(client);
+
+	return data->info;
+}
+EXPORT_SYMBOL_GPL(pmbus_get_driver_info);
+
+static struct _pmbus_status {
+	u32 func;
+	u16 base;
+	u16 reg;
+} pmbus_status[] = {
+	{ PMBUS_HAVE_STATUS_VOUT, PB_STATUS_VOUT_BASE, PMBUS_STATUS_VOUT },
+	{ PMBUS_HAVE_STATUS_IOUT, PB_STATUS_IOUT_BASE, PMBUS_STATUS_IOUT },
+	{ PMBUS_HAVE_STATUS_TEMP, PB_STATUS_TEMP_BASE,
+	  PMBUS_STATUS_TEMPERATURE },
+	{ PMBUS_HAVE_STATUS_FAN12, PB_STATUS_FAN_BASE, PMBUS_STATUS_FAN_12 },
+	{ PMBUS_HAVE_STATUS_FAN34, PB_STATUS_FAN34_BASE, PMBUS_STATUS_FAN_34 },
+};
+
+static struct pmbus_data *pmbus_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct pmbus_data *data = i2c_get_clientdata(client);
+	const struct pmbus_driver_info *info = data->info;
+	struct pmbus_sensor *sensor;
+
+	mutex_lock(&data->update_lock);
+	if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
+		int i, j;
+
+		for (i = 0; i < info->pages; i++) {
+			data->status[PB_STATUS_BASE + i]
+			    = _pmbus_read_byte_data(client, i,
+						    data->status_register);
+			for (j = 0; j < ARRAY_SIZE(pmbus_status); j++) {
+				struct _pmbus_status *s = &pmbus_status[j];
+
+				if (!(info->func[i] & s->func))
+					continue;
+				data->status[s->base + i]
+					= _pmbus_read_byte_data(client, i,
+								s->reg);
+			}
+		}
+
+		if (info->func[0] & PMBUS_HAVE_STATUS_INPUT)
+			data->status[PB_STATUS_INPUT_BASE]
+			  = _pmbus_read_byte_data(client, 0,
+						  PMBUS_STATUS_INPUT);
+
+		if (info->func[0] & PMBUS_HAVE_STATUS_VMON)
+			data->status[PB_STATUS_VMON_BASE]
+			  = _pmbus_read_byte_data(client, 0,
+						  PMBUS_VIRT_STATUS_VMON);
+
+		for (sensor = data->sensors; sensor; sensor = sensor->next) {
+			if (!data->valid || sensor->update)
+				sensor->data
+				    = _pmbus_read_word_data(client,
+							    sensor->page,
+							    sensor->reg);
+		}
+		pmbus_clear_faults(client);
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+	mutex_unlock(&data->update_lock);
+	return data;
+}
+
+/*
+ * Convert linear sensor values to milli- or micro-units
+ * depending on sensor type.
+ */
+static long pmbus_reg2data_linear(struct pmbus_data *data,
+				  struct pmbus_sensor *sensor)
+{
+	s16 exponent;
+	s32 mantissa;
+	long val;
+
+	if (sensor->class == PSC_VOLTAGE_OUT) {	/* LINEAR16 */
+		exponent = data->exponent;
+		mantissa = (u16) sensor->data;
+	} else {				/* LINEAR11 */
+		exponent = ((s16)sensor->data) >> 11;
+		mantissa = ((s16)((sensor->data & 0x7ff) << 5)) >> 5;
+	}
+
+	val = mantissa;
+
+	/* scale result to milli-units for all sensors except fans */
+	if (sensor->class != PSC_FAN)
+		val = val * 1000L;
+
+	/* scale result to micro-units for power sensors */
+	if (sensor->class == PSC_POWER)
+		val = val * 1000L;
+
+	if (exponent >= 0)
+		val <<= exponent;
+	else
+		val >>= -exponent;
+
+	return val;
+}
+
+/*
+ * Convert direct sensor values to milli- or micro-units
+ * depending on sensor type.
+ */
+static long pmbus_reg2data_direct(struct pmbus_data *data,
+				  struct pmbus_sensor *sensor)
+{
+	long val = (s16) sensor->data;
+	long m, b, R;
+
+	m = data->info->m[sensor->class];
+	b = data->info->b[sensor->class];
+	R = data->info->R[sensor->class];
+
+	if (m == 0)
+		return 0;
+
+	/* X = 1/m * (Y * 10^-R - b) */
+	R = -R;
+	/* scale result to milli-units for everything but fans */
+	if (sensor->class != PSC_FAN) {
+		R += 3;
+		b *= 1000;
+	}
+
+	/* scale result to micro-units for power sensors */
+	if (sensor->class == PSC_POWER) {
+		R += 3;
+		b *= 1000;
+	}
+
+	while (R > 0) {
+		val *= 10;
+		R--;
+	}
+	while (R < 0) {
+		val = DIV_ROUND_CLOSEST(val, 10);
+		R++;
+	}
+
+	return (val - b) / m;
+}
+
+/*
+ * Convert VID sensor values to milli- or micro-units
+ * depending on sensor type.
+ * We currently only support VR11.
+ */
+static long pmbus_reg2data_vid(struct pmbus_data *data,
+			       struct pmbus_sensor *sensor)
+{
+	long val = sensor->data;
+
+	if (val < 0x02 || val > 0xb2)
+		return 0;
+	return DIV_ROUND_CLOSEST(160000 - (val - 2) * 625, 100);
+}
+
+static long pmbus_reg2data(struct pmbus_data *data, struct pmbus_sensor *sensor)
+{
+	long val;
+
+	switch (data->info->format[sensor->class]) {
+	case direct:
+		val = pmbus_reg2data_direct(data, sensor);
+		break;
+	case vid:
+		val = pmbus_reg2data_vid(data, sensor);
+		break;
+	case linear:
+	default:
+		val = pmbus_reg2data_linear(data, sensor);
+		break;
+	}
+	return val;
+}
+
+#define MAX_MANTISSA	(1023 * 1000)
+#define MIN_MANTISSA	(511 * 1000)
+
+static u16 pmbus_data2reg_linear(struct pmbus_data *data,
+				 enum pmbus_sensor_classes class, long val)
+{
+	s16 exponent = 0, mantissa;
+	bool negative = false;
+
+	/* simple case */
+	if (val == 0)
+		return 0;
+
+	if (class == PSC_VOLTAGE_OUT) {
+		/* LINEAR16 does not support negative voltages */
+		if (val < 0)
+			return 0;
+
+		/*
+		 * For a static exponents, we don't have a choice
+		 * but to adjust the value to it.
+		 */
+		if (data->exponent < 0)
+			val <<= -data->exponent;
+		else
+			val >>= data->exponent;
+		val = DIV_ROUND_CLOSEST(val, 1000);
+		return val & 0xffff;
+	}
+
+	if (val < 0) {
+		negative = true;
+		val = -val;
+	}
+
+	/* Power is in uW. Convert to mW before converting. */
+	if (class == PSC_POWER)
+		val = DIV_ROUND_CLOSEST(val, 1000L);
+
+	/*
+	 * For simplicity, convert fan data to milli-units
+	 * before calculating the exponent.
+	 */
+	if (class == PSC_FAN)
+		val = val * 1000;
+
+	/* Reduce large mantissa until it fits into 10 bit */
+	while (val >= MAX_MANTISSA && exponent < 15) {
+		exponent++;
+		val >>= 1;
+	}
+	/* Increase small mantissa to improve precision */
+	while (val < MIN_MANTISSA && exponent > -15) {
+		exponent--;
+		val <<= 1;
+	}
+
+	/* Convert mantissa from milli-units to units */
+	mantissa = DIV_ROUND_CLOSEST(val, 1000);
+
+	/* Ensure that resulting number is within range */
+	if (mantissa > 0x3ff)
+		mantissa = 0x3ff;
+
+	/* restore sign */
+	if (negative)
+		mantissa = -mantissa;
+
+	/* Convert to 5 bit exponent, 11 bit mantissa */
+	return (mantissa & 0x7ff) | ((exponent << 11) & 0xf800);
+}
+
+static u16 pmbus_data2reg_direct(struct pmbus_data *data,
+				 enum pmbus_sensor_classes class, long val)
+{
+	long m, b, R;
+
+	m = data->info->m[class];
+	b = data->info->b[class];
+	R = data->info->R[class];
+
+	/* Power is in uW. Adjust R and b. */
+	if (class == PSC_POWER) {
+		R -= 3;
+		b *= 1000;
+	}
+
+	/* Calculate Y = (m * X + b) * 10^R */
+	if (class != PSC_FAN) {
+		R -= 3;		/* Adjust R and b for data in milli-units */
+		b *= 1000;
+	}
+	val = val * m + b;
+
+	while (R > 0) {
+		val *= 10;
+		R--;
+	}
+	while (R < 0) {
+		val = DIV_ROUND_CLOSEST(val, 10);
+		R++;
+	}
+
+	return val;
+}
+
+static u16 pmbus_data2reg_vid(struct pmbus_data *data,
+			      enum pmbus_sensor_classes class, long val)
+{
+	val = clamp_val(val, 500, 1600);
+
+	return 2 + DIV_ROUND_CLOSEST((1600 - val) * 100, 625);
+}
+
+static u16 pmbus_data2reg(struct pmbus_data *data,
+			  enum pmbus_sensor_classes class, long val)
+{
+	u16 regval;
+
+	switch (data->info->format[class]) {
+	case direct:
+		regval = pmbus_data2reg_direct(data, class, val);
+		break;
+	case vid:
+		regval = pmbus_data2reg_vid(data, class, val);
+		break;
+	case linear:
+	default:
+		regval = pmbus_data2reg_linear(data, class, val);
+		break;
+	}
+	return regval;
+}
+
+/*
+ * Return boolean calculated from converted data.
+ * <index> defines a status register index and mask.
+ * The mask is in the lower 8 bits, the register index is in bits 8..23.
+ *
+ * The associated pmbus_boolean structure contains optional pointers to two
+ * sensor attributes. If specified, those attributes are compared against each
+ * other to determine if a limit has been exceeded.
+ *
+ * If the sensor attribute pointers are NULL, the function returns true if
+ * (status[reg] & mask) is true.
+ *
+ * If sensor attribute pointers are provided, a comparison against a specified
+ * limit has to be performed to determine the boolean result.
+ * In this case, the function returns true if v1 >= v2 (where v1 and v2 are
+ * sensor values referenced by sensor attribute pointers s1 and s2).
+ *
+ * To determine if an object exceeds upper limits, specify <s1,s2> = <v,limit>.
+ * To determine if an object exceeds lower limits, specify <s1,s2> = <limit,v>.
+ *
+ * If a negative value is stored in any of the referenced registers, this value
+ * reflects an error code which will be returned.
+ */
+static int pmbus_get_boolean(struct pmbus_data *data, struct pmbus_boolean *b,
+			     int index)
+{
+	struct pmbus_sensor *s1 = b->s1;
+	struct pmbus_sensor *s2 = b->s2;
+	u16 reg = (index >> 8) & 0xffff;
+	u8 mask = index & 0xff;
+	int ret, status;
+	u8 regval;
+
+	status = data->status[reg];
+	if (status < 0)
+		return status;
+
+	regval = status & mask;
+	if (!s1 && !s2) {
+		ret = !!regval;
+	} else if (!s1 || !s2) {
+		BUG();
+		return 0;
+	} else {
+		long v1, v2;
+
+		if (s1->data < 0)
+			return s1->data;
+		if (s2->data < 0)
+			return s2->data;
+
+		v1 = pmbus_reg2data(data, s1);
+		v2 = pmbus_reg2data(data, s2);
+		ret = !!(regval && v1 >= v2);
+	}
+	return ret;
+}
+
+static ssize_t pmbus_show_boolean(struct device *dev,
+				  struct device_attribute *da, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct pmbus_boolean *boolean = to_pmbus_boolean(attr);
+	struct pmbus_data *data = pmbus_update_device(dev);
+	int val;
+
+	val = pmbus_get_boolean(data, boolean, attr->index);
+	if (val < 0)
+		return val;
+	if (val == 0xff)
+		return 0;
+	return snprintf(buf, PAGE_SIZE, "%d\n", val);
+}
+
+static ssize_t pmbus_show_sensor(struct device *dev,
+				 struct device_attribute *devattr, char *buf)
+{
+	struct pmbus_data *data = pmbus_update_device(dev);
+	struct pmbus_sensor *sensor = to_pmbus_sensor(devattr);
+
+	if (sensor->data < 0)
+		return sensor->data;
+	if (sensor->data == 0xffff) 
+		return 0;
+
+	return snprintf(buf, PAGE_SIZE, "%ld\n", pmbus_reg2data(data, sensor));
+}
+
+static ssize_t pmbus_set_sensor(struct device *dev,
+				struct device_attribute *devattr,
+				const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct pmbus_data *data = i2c_get_clientdata(client);
+	struct pmbus_sensor *sensor = to_pmbus_sensor(devattr);
+	ssize_t rv = count;
+	long val = 0;
+	int ret;
+	u16 regval;
+
+	if ((val = simple_strtol(buf, NULL, 10)) < 0)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	regval = pmbus_data2reg(data, sensor->class, val);
+	ret = _pmbus_write_word_data(client, sensor->page, sensor->reg, regval);
+	if (ret < 0)
+		rv = ret;
+	else
+		sensor->data = regval;
+	mutex_unlock(&data->update_lock);
+	return rv;
+}
+
+static ssize_t pmbus_show_label(struct device *dev,
+				struct device_attribute *da, char *buf)
+{
+	struct pmbus_label *label = to_pmbus_label(da);
+
+	return snprintf(buf, PAGE_SIZE, "%s\n", label->label);
+}
+
+static int pmbus_add_attribute(struct pmbus_data *data, struct attribute *attr)
+{
+	if (data->num_attributes >= data->max_attributes - 1) {
+		int new_max_attrs = data->max_attributes + PMBUS_ATTR_ALLOC_SIZE;
+		void *new_attrs = krealloc(data->group.attrs,
+					   new_max_attrs * sizeof(void *),
+					   GFP_KERNEL);
+		if (!new_attrs)
+			return -ENOMEM;
+		data->group.attrs = new_attrs;
+		data->max_attributes = new_max_attrs;
+	}
+
+	data->group.attrs[data->num_attributes++] = attr;
+	data->group.attrs[data->num_attributes] = NULL;
+	return 0;
+}
+
+static void pmbus_dev_attr_init(struct device_attribute *dev_attr,
+				const char *name,
+				umode_t mode,
+				ssize_t (*show)(struct device *dev,
+						struct device_attribute *attr,
+						char *buf),
+				ssize_t (*store)(struct device *dev,
+						 struct device_attribute *attr,
+						 const char *buf, size_t count))
+{
+	// KML:  Unnecessary in 2.6.28:
+	//sysfs_attr_init(&dev_attr->attr);
+	dev_attr->attr.name = name;
+	dev_attr->attr.mode = mode;
+	dev_attr->show = show;
+	dev_attr->store = store;
+}
+
+static void pmbus_attr_init(struct sensor_device_attribute *a,
+			    const char *name,
+			    umode_t mode,
+			    ssize_t (*show)(struct device *dev,
+					    struct device_attribute *attr,
+					    char *buf),
+			    ssize_t (*store)(struct device *dev,
+					     struct device_attribute *attr,
+					     const char *buf, size_t count),
+			    int idx)
+{
+	pmbus_dev_attr_init(&a->dev_attr, name, mode, show, store);
+	a->index = idx;
+}
+
+static int pmbus_add_boolean(struct pmbus_data *data,
+			     const char *name, const char *type, int seq,
+			     struct pmbus_sensor *s1,
+			     struct pmbus_sensor *s2,
+			     u16 reg, u8 mask)
+{
+	struct pmbus_boolean *boolean;
+	struct sensor_device_attribute *a;
+
+	boolean = devm_kzalloc(data->dev, sizeof(*boolean), GFP_KERNEL);
+	if (!boolean)
+		return -ENOMEM;
+
+	a = &boolean->attribute;
+
+	snprintf(boolean->name, sizeof(boolean->name), "%s%d_%s",
+		 name, seq, type);
+	boolean->s1 = s1;
+	boolean->s2 = s2;
+	pmbus_attr_init(a, boolean->name, S_IRUGO, pmbus_show_boolean, NULL,
+			(reg << 8) | mask);
+
+	return pmbus_add_attribute(data, &a->dev_attr.attr);
+}
+
+static struct pmbus_sensor *pmbus_add_sensor(struct pmbus_data *data,
+					     const char *name, const char *type,
+					     int seq, int page, int reg,
+					     enum pmbus_sensor_classes class,
+					     bool update, bool readonly)
+{
+	struct pmbus_sensor *sensor;
+	struct device_attribute *a;
+
+	sensor = devm_kzalloc(data->dev, sizeof(*sensor), GFP_KERNEL);
+	if (!sensor)
+		return NULL;
+	a = &sensor->attribute;
+
+	snprintf(sensor->name, sizeof(sensor->name), "%s%d_%s",
+		 name, seq, type);
+	sensor->page = page;
+	sensor->reg = reg;
+	sensor->class = class;
+	sensor->update = update;
+	pmbus_dev_attr_init(a, sensor->name,
+			    readonly ? S_IRUGO : S_IRUGO | S_IWUSR,
+			    pmbus_show_sensor, pmbus_set_sensor);
+
+	if (pmbus_add_attribute(data, &a->attr))
+		return NULL;
+
+	sensor->next = data->sensors;
+	data->sensors = sensor;
+
+	return sensor;
+}
+
+static int pmbus_add_label(struct pmbus_data *data,
+			   const char *name, int seq,
+			   const char *lstring, int index)
+{
+	struct pmbus_label *label;
+	struct device_attribute *a;
+
+	label = devm_kzalloc(data->dev, sizeof(*label), GFP_KERNEL);
+	if (!label)
+		return -ENOMEM;
+
+	a = &label->attribute;
+
+	if (seq == -1)
+		snprintf(label->name, sizeof(label->name), "%s_label", name);
+	else
+		snprintf(label->name, sizeof(label->name), "%s%d_label",
+			 name, seq);
+	if (!index)
+		strncpy(label->label, lstring, sizeof(label->label) - 1);
+	else
+		snprintf(label->label, sizeof(label->label), "%s%d", lstring,
+			 index);
+
+	pmbus_dev_attr_init(a, label->name, S_IRUGO, pmbus_show_label, NULL);
+	return pmbus_add_attribute(data, &a->attr);
+}
+
+/*
+ * Search for attributes. Allocate sensors, booleans, and labels as needed.
+ */
+
+/*
+ * The pmbus_limit_attr structure describes a single limit attribute
+ * and its associated alarm attribute.
+ */
+struct pmbus_limit_attr {
+	u16 reg;		/* Limit register */
+	u16 sbit;		/* Alarm attribute status bit */
+	bool update;		/* True if register needs updates */
+	bool low;		/* True if low limit; for limits with compare
+				   functions only */
+	const char *attr;	/* Attribute name */
+	const char *alarm;	/* Alarm attribute name */
+};
+
+/*
+ * The pmbus_sensor_attr structure describes one sensor attribute. This
+ * description includes a reference to the associated limit attributes.
+ */
+struct pmbus_sensor_attr {
+	u16 reg;			/* sensor register */
+	u8 gbit;			/* generic status bit */
+	u8 nlimit;			/* # of limit registers */
+	enum pmbus_sensor_classes class;/* sensor class */
+	const char *label;		/* sensor label */
+	bool paged;			/* true if paged sensor */
+	bool update;			/* true if update needed */
+	bool compare;			/* true if compare function needed */
+	u32 func;			/* sensor mask */
+	u32 sfunc;			/* sensor status mask */
+	int sbase;			/* status base register */
+	const struct pmbus_limit_attr *limit;/* limit registers */
+};
+
+/*
+ * Add a set of limit attributes and, if supported, the associated
+ * alarm attributes.
+ * returns 0 if no alarm register found, 1 if an alarm register was found,
+ * < 0 on errors.
+ */
+static int pmbus_add_limit_attrs(struct i2c_client *client,
+				 struct pmbus_data *data,
+				 const struct pmbus_driver_info *info,
+				 const char *name, int index, int page,
+				 struct pmbus_sensor *base,
+				 const struct pmbus_sensor_attr *attr)
+{
+	const struct pmbus_limit_attr *l = attr->limit;
+	int nlimit = attr->nlimit;
+	int have_alarm = 0;
+	int i, ret;
+	struct pmbus_sensor *curr;
+
+	for (i = 0; i < nlimit; i++) {
+		if (pmbus_check_word_register(client, page, l->reg)) {
+			curr = pmbus_add_sensor(data, name, l->attr, index,
+						page, l->reg, attr->class,
+						attr->update || l->update,
+						false);
+			if (!curr)
+				return -ENOMEM;
+			if (l->sbit && (info->func[page] & attr->sfunc)) {
+				ret = pmbus_add_boolean(data, name,
+					l->alarm, index,
+					attr->compare ?  l->low ? curr : base
+						      : NULL,
+					attr->compare ? l->low ? base : curr
+						      : NULL,
+					attr->sbase + page, l->sbit);
+				if (ret)
+					return ret;
+				have_alarm = 1;
+			}
+		}
+		l++;
+	}
+	return have_alarm;
+}
+
+static int pmbus_add_sensor_attrs_one(struct i2c_client *client,
+				      struct pmbus_data *data,
+				      const struct pmbus_driver_info *info,
+				      const char *name,
+				      int index, int page,
+				      const struct pmbus_sensor_attr *attr)
+{
+	struct pmbus_sensor *base;
+	int ret;
+
+	if (attr->label) {
+		ret = pmbus_add_label(data, name, index, attr->label,
+				      attr->paged ? page + 1 : 0);
+		if (ret)
+			return ret;
+	}
+	base = pmbus_add_sensor(data, name, "input", index, page, attr->reg,
+				attr->class, true, true);
+	if (!base)
+		return -ENOMEM;
+	if (attr->sfunc) {
+		ret = pmbus_add_limit_attrs(client, data, info, name,
+					    index, page, base, attr);
+		if (ret < 0)
+			return ret;
+		/*
+		 * Add generic alarm attribute only if there are no individual
+		 * alarm attributes, if there is a global alarm bit, and if
+		 * the generic status register for this page is accessible.
+		 */
+		if (!ret && attr->gbit &&
+		    pmbus_check_byte_register(client, page,
+					      data->status_register)) {
+			ret = pmbus_add_boolean(data, name, "alarm", index,
+						NULL, NULL,
+						PB_STATUS_BASE + page,
+						attr->gbit);
+			if (ret)
+				return ret;
+		}
+	}
+	return 0;
+}
+
+static int pmbus_add_sensor_attrs(struct i2c_client *client,
+				  struct pmbus_data *data,
+				  const char *name,
+				  const struct pmbus_sensor_attr *attrs,
+				  int nattrs)
+{
+	const struct pmbus_driver_info *info = data->info;
+	int index, i;
+	int ret;
+
+	index = 1;
+	for (i = 0; i < nattrs; i++) {
+		int page, pages;
+
+		pages = attrs->paged ? info->pages : 1;
+		for (page = 0; page < pages; page++) {
+			if (!(info->func[page] & attrs->func))
+				continue;
+			ret = pmbus_add_sensor_attrs_one(client, data, info,
+							 name, index, page,
+							 attrs);
+			if (ret)
+				return ret;
+			index++;
+		}
+		attrs++;
+	}
+	return 0;
+}
+
+static const struct pmbus_limit_attr vin_limit_attrs[] = {
+	{
+		.reg = PMBUS_VIN_UV_WARN_LIMIT,
+		.attr = "min",
+		.alarm = "min_alarm",
+		.sbit = PB_VOLTAGE_UV_WARNING,
+	}, {
+		.reg = PMBUS_VIN_UV_FAULT_LIMIT,
+		.attr = "lcrit",
+		.alarm = "lcrit_alarm",
+		.sbit = PB_VOLTAGE_UV_FAULT,
+	}, {
+		.reg = PMBUS_VIN_OV_WARN_LIMIT,
+		.attr = "max",
+		.alarm = "max_alarm",
+		.sbit = PB_VOLTAGE_OV_WARNING,
+	}, {
+		.reg = PMBUS_VIN_OV_FAULT_LIMIT,
+		.attr = "crit",
+		.alarm = "crit_alarm",
+		.sbit = PB_VOLTAGE_OV_FAULT,
+	}, {
+		.reg = PMBUS_VIRT_READ_VIN_AVG,
+		.update = true,
+		.attr = "average",
+	}, {
+		.reg = PMBUS_VIRT_READ_VIN_MIN,
+		.update = true,
+		.attr = "lowest",
+	}, {
+		.reg = PMBUS_VIRT_READ_VIN_MAX,
+		.update = true,
+		.attr = "highest",
+	}, {
+		.reg = PMBUS_VIRT_RESET_VIN_HISTORY,
+		.attr = "reset_history",
+	},
+};
+
+static const struct pmbus_limit_attr vmon_limit_attrs[] = {
+	{
+		.reg = PMBUS_VIRT_VMON_UV_WARN_LIMIT,
+		.attr = "min",
+		.alarm = "min_alarm",
+		.sbit = PB_VOLTAGE_UV_WARNING,
+	}, {
+		.reg = PMBUS_VIRT_VMON_UV_FAULT_LIMIT,
+		.attr = "lcrit",
+		.alarm = "lcrit_alarm",
+		.sbit = PB_VOLTAGE_UV_FAULT,
+	}, {
+		.reg = PMBUS_VIRT_VMON_OV_WARN_LIMIT,
+		.attr = "max",
+		.alarm = "max_alarm",
+		.sbit = PB_VOLTAGE_OV_WARNING,
+	}, {
+		.reg = PMBUS_VIRT_VMON_OV_FAULT_LIMIT,
+		.attr = "crit",
+		.alarm = "crit_alarm",
+		.sbit = PB_VOLTAGE_OV_FAULT,
+	}
+};
+
+static const struct pmbus_limit_attr vout_limit_attrs[] = {
+	{
+		.reg = PMBUS_VOUT_UV_WARN_LIMIT,
+		.attr = "min",
+		.alarm = "min_alarm",
+		.sbit = PB_VOLTAGE_UV_WARNING,
+	}, {
+		.reg = PMBUS_VOUT_UV_FAULT_LIMIT,
+		.attr = "lcrit",
+		.alarm = "lcrit_alarm",
+		.sbit = PB_VOLTAGE_UV_FAULT,
+	}, {
+		.reg = PMBUS_VOUT_OV_WARN_LIMIT,
+		.attr = "max",
+		.alarm = "max_alarm",
+		.sbit = PB_VOLTAGE_OV_WARNING,
+	}, {
+		.reg = PMBUS_VOUT_OV_FAULT_LIMIT,
+		.attr = "crit",
+		.alarm = "crit_alarm",
+		.sbit = PB_VOLTAGE_OV_FAULT,
+	}, {
+		.reg = PMBUS_VIRT_READ_VOUT_AVG,
+		.update = true,
+		.attr = "average",
+	}, {
+		.reg = PMBUS_VIRT_READ_VOUT_MIN,
+		.update = true,
+		.attr = "lowest",
+	}, {
+		.reg = PMBUS_VIRT_READ_VOUT_MAX,
+		.update = true,
+		.attr = "highest",
+	}, {
+		.reg = PMBUS_VIRT_RESET_VOUT_HISTORY,
+		.attr = "reset_history",
+	}
+};
+
+static const struct pmbus_sensor_attr voltage_attributes[] = {
+	{
+		.reg = PMBUS_READ_VIN,
+		.class = PSC_VOLTAGE_IN,
+		.label = "vin",
+		.func = PMBUS_HAVE_VIN,
+		.sfunc = PMBUS_HAVE_STATUS_INPUT,
+		.sbase = PB_STATUS_INPUT_BASE,
+		.gbit = PB_STATUS_VIN_UV,
+		.limit = vin_limit_attrs,
+		.nlimit = ARRAY_SIZE(vin_limit_attrs),
+	}, {
+		.reg = PMBUS_VIRT_READ_VMON,
+		.class = PSC_VOLTAGE_IN,
+		.label = "vmon",
+		.func = PMBUS_HAVE_VMON,
+		.sfunc = PMBUS_HAVE_STATUS_VMON,
+		.sbase = PB_STATUS_VMON_BASE,
+		.limit = vmon_limit_attrs,
+		.nlimit = ARRAY_SIZE(vmon_limit_attrs),
+	}, {
+		.reg = PMBUS_READ_VCAP,
+		.class = PSC_VOLTAGE_IN,
+		.label = "vcap",
+		.func = PMBUS_HAVE_VCAP,
+	}, {
+		.reg = PMBUS_READ_VOUT,
+		.class = PSC_VOLTAGE_OUT,
+		.label = "vout",
+		.paged = true,
+		.func = PMBUS_HAVE_VOUT,
+		.sfunc = PMBUS_HAVE_STATUS_VOUT,
+		.sbase = PB_STATUS_VOUT_BASE,
+		.gbit = PB_STATUS_VOUT_OV,
+		.limit = vout_limit_attrs,
+		.nlimit = ARRAY_SIZE(vout_limit_attrs),
+	}
+};
+
+/* Current attributes */
+
+static const struct pmbus_limit_attr iin_limit_attrs[] = {
+	{
+		.reg = PMBUS_IIN_OC_WARN_LIMIT,
+		.attr = "max",
+		.alarm = "max_alarm",
+		.sbit = PB_IIN_OC_WARNING,
+	}, {
+		.reg = PMBUS_IIN_OC_FAULT_LIMIT,
+		.attr = "crit",
+		.alarm = "crit_alarm",
+		.sbit = PB_IIN_OC_FAULT,
+	}, {
+		.reg = PMBUS_VIRT_READ_IIN_AVG,
+		.update = true,
+		.attr = "average",
+	}, {
+		.reg = PMBUS_VIRT_READ_IIN_MIN,
+		.update = true,
+		.attr = "lowest",
+	}, {
+		.reg = PMBUS_VIRT_READ_IIN_MAX,
+		.update = true,
+		.attr = "highest",
+	}, {
+		.reg = PMBUS_VIRT_RESET_IIN_HISTORY,
+		.attr = "reset_history",
+	}
+};
+
+static const struct pmbus_limit_attr iout_limit_attrs[] = {
+	{
+		.reg = PMBUS_IOUT_OC_WARN_LIMIT,
+		.attr = "max",
+		.alarm = "max_alarm",
+		.sbit = PB_IOUT_OC_WARNING,
+	}, {
+		.reg = PMBUS_IOUT_UC_FAULT_LIMIT,
+		.attr = "lcrit",
+		.alarm = "lcrit_alarm",
+		.sbit = PB_IOUT_UC_FAULT,
+	}, {
+		.reg = PMBUS_IOUT_OC_FAULT_LIMIT,
+		.attr = "crit",
+		.alarm = "crit_alarm",
+		.sbit = PB_IOUT_OC_FAULT,
+	}, {
+		.reg = PMBUS_VIRT_READ_IOUT_AVG,
+		.update = true,
+		.attr = "average",
+	}, {
+		.reg = PMBUS_VIRT_READ_IOUT_MIN,
+		.update = true,
+		.attr = "lowest",
+	}, {
+		.reg = PMBUS_VIRT_READ_IOUT_MAX,
+		.update = true,
+		.attr = "highest",
+	}, {
+		.reg = PMBUS_VIRT_RESET_IOUT_HISTORY,
+		.attr = "reset_history",
+	}
+};
+
+static const struct pmbus_sensor_attr current_attributes[] = {
+	{
+		.reg = PMBUS_READ_IIN,
+		.class = PSC_CURRENT_IN,
+		.label = "iin",
+		.func = PMBUS_HAVE_IIN,
+		.sfunc = PMBUS_HAVE_STATUS_INPUT,
+		.sbase = PB_STATUS_INPUT_BASE,
+		.limit = iin_limit_attrs,
+		.nlimit = ARRAY_SIZE(iin_limit_attrs),
+	}, {
+		.reg = PMBUS_READ_IOUT,
+		.class = PSC_CURRENT_OUT,
+		.label = "iout",
+		.paged = true,
+		.func = PMBUS_HAVE_IOUT,
+		.sfunc = PMBUS_HAVE_STATUS_IOUT,
+		.sbase = PB_STATUS_IOUT_BASE,
+		.gbit = PB_STATUS_IOUT_OC,
+		.limit = iout_limit_attrs,
+		.nlimit = ARRAY_SIZE(iout_limit_attrs),
+	}
+};
+
+/* Power attributes */
+
+static const struct pmbus_limit_attr pin_limit_attrs[] = {
+	{
+		.reg = PMBUS_PIN_OP_WARN_LIMIT,
+		.attr = "max",
+		.alarm = "alarm",
+		.sbit = PB_PIN_OP_WARNING,
+	}, {
+		.reg = PMBUS_VIRT_READ_PIN_AVG,
+		.update = true,
+		.attr = "average",
+	}, {
+		.reg = PMBUS_VIRT_READ_PIN_MAX,
+		.update = true,
+		.attr = "input_highest",
+	}, {
+		.reg = PMBUS_VIRT_RESET_PIN_HISTORY,
+		.attr = "reset_history",
+	}
+};
+
+static const struct pmbus_limit_attr pout_limit_attrs[] = {
+	{
+		.reg = PMBUS_POUT_MAX,
+		.attr = "cap",
+		.alarm = "cap_alarm",
+		.sbit = PB_POWER_LIMITING,
+	}, {
+		.reg = PMBUS_POUT_OP_WARN_LIMIT,
+		.attr = "max",
+		.alarm = "max_alarm",
+		.sbit = PB_POUT_OP_WARNING,
+	}, {
+		.reg = PMBUS_POUT_OP_FAULT_LIMIT,
+		.attr = "crit",
+		.alarm = "crit_alarm",
+		.sbit = PB_POUT_OP_FAULT,
+	}, {
+		.reg = PMBUS_VIRT_READ_POUT_AVG,
+		.update = true,
+		.attr = "average",
+	}, {
+		.reg = PMBUS_VIRT_READ_POUT_MAX,
+		.update = true,
+		.attr = "input_highest",
+	}, {
+		.reg = PMBUS_VIRT_RESET_POUT_HISTORY,
+		.attr = "reset_history",
+	}
+};
+
+static const struct pmbus_sensor_attr power_attributes[] = {
+	{
+		.reg = PMBUS_READ_PIN,
+		.class = PSC_POWER,
+		.label = "pin",
+		.func = PMBUS_HAVE_PIN,
+		.sfunc = PMBUS_HAVE_STATUS_INPUT,
+		.sbase = PB_STATUS_INPUT_BASE,
+		.limit = pin_limit_attrs,
+		.nlimit = ARRAY_SIZE(pin_limit_attrs),
+	}, {
+		.reg = PMBUS_READ_POUT,
+		.class = PSC_POWER,
+		.label = "pout",
+		.paged = true,
+		.func = PMBUS_HAVE_POUT,
+		.sfunc = PMBUS_HAVE_STATUS_IOUT,
+		.sbase = PB_STATUS_IOUT_BASE,
+		.limit = pout_limit_attrs,
+		.nlimit = ARRAY_SIZE(pout_limit_attrs),
+	}
+};
+
+/* Temperature atributes */
+
+static const struct pmbus_limit_attr temp_limit_attrs[] = {
+	{
+		.reg = PMBUS_UT_WARN_LIMIT,
+		.low = true,
+		.attr = "min",
+		.alarm = "min_alarm",
+		.sbit = PB_TEMP_UT_WARNING,
+	}, {
+		.reg = PMBUS_UT_FAULT_LIMIT,
+		.low = true,
+		.attr = "lcrit",
+		.alarm = "lcrit_alarm",
+		.sbit = PB_TEMP_UT_FAULT,
+	}, {
+		.reg = PMBUS_OT_WARN_LIMIT,
+		.attr = "max",
+		.alarm = "max_alarm",
+		.sbit = PB_TEMP_OT_WARNING,
+	}, {
+		.reg = PMBUS_OT_FAULT_LIMIT,
+		.attr = "crit",
+		.alarm = "crit_alarm",
+		.sbit = PB_TEMP_OT_FAULT,
+	}, {
+		.reg = PMBUS_VIRT_READ_TEMP_MIN,
+		.attr = "lowest",
+	}, {
+		.reg = PMBUS_VIRT_READ_TEMP_AVG,
+		.attr = "average",
+	}, {
+		.reg = PMBUS_VIRT_READ_TEMP_MAX,
+		.attr = "highest",
+	}, {
+		.reg = PMBUS_VIRT_RESET_TEMP_HISTORY,
+		.attr = "reset_history",
+	}
+};
+
+static const struct pmbus_limit_attr temp_limit_attrs2[] = {
+	{
+		.reg = PMBUS_UT_WARN_LIMIT,
+		.low = true,
+		.attr = "min",
+		.alarm = "min_alarm",
+		.sbit = PB_TEMP_UT_WARNING,
+	}, {
+		.reg = PMBUS_UT_FAULT_LIMIT,
+		.low = true,
+		.attr = "lcrit",
+		.alarm = "lcrit_alarm",
+		.sbit = PB_TEMP_UT_FAULT,
+	}, {
+		.reg = PMBUS_OT_WARN_LIMIT,
+		.attr = "max",
+		.alarm = "max_alarm",
+		.sbit = PB_TEMP_OT_WARNING,
+	}, {
+		.reg = PMBUS_OT_FAULT_LIMIT,
+		.attr = "crit",
+		.alarm = "crit_alarm",
+		.sbit = PB_TEMP_OT_FAULT,
+	}, {
+		.reg = PMBUS_VIRT_READ_TEMP2_MIN,
+		.attr = "lowest",
+	}, {
+		.reg = PMBUS_VIRT_READ_TEMP2_AVG,
+		.attr = "average",
+	}, {
+		.reg = PMBUS_VIRT_READ_TEMP2_MAX,
+		.attr = "highest",
+	}, {
+		.reg = PMBUS_VIRT_RESET_TEMP2_HISTORY,
+		.attr = "reset_history",
+	}
+};
+
+static const struct pmbus_limit_attr temp_limit_attrs3[] = {
+	{
+		.reg = PMBUS_UT_WARN_LIMIT,
+		.low = true,
+		.attr = "min",
+		.alarm = "min_alarm",
+		.sbit = PB_TEMP_UT_WARNING,
+	}, {
+		.reg = PMBUS_UT_FAULT_LIMIT,
+		.low = true,
+		.attr = "lcrit",
+		.alarm = "lcrit_alarm",
+		.sbit = PB_TEMP_UT_FAULT,
+	}, {
+		.reg = PMBUS_OT_WARN_LIMIT,
+		.attr = "max",
+		.alarm = "max_alarm",
+		.sbit = PB_TEMP_OT_WARNING,
+	}, {
+		.reg = PMBUS_OT_FAULT_LIMIT,
+		.attr = "crit",
+		.alarm = "crit_alarm",
+		.sbit = PB_TEMP_OT_FAULT,
+	}
+};
+
+static const struct pmbus_sensor_attr temp_attributes[] = {
+	{
+		.reg = PMBUS_READ_TEMPERATURE_1,
+		.class = PSC_TEMPERATURE,
+		.paged = true,
+		.update = true,
+		.compare = true,
+		.func = PMBUS_HAVE_TEMP,
+		.sfunc = PMBUS_HAVE_STATUS_TEMP,
+		.sbase = PB_STATUS_TEMP_BASE,
+		.gbit = PB_STATUS_TEMPERATURE,
+		.limit = temp_limit_attrs,
+		.nlimit = ARRAY_SIZE(temp_limit_attrs),
+	}, {
+		.reg = PMBUS_READ_TEMPERATURE_2,
+		.class = PSC_TEMPERATURE,
+		.paged = true,
+		.update = true,
+		.compare = true,
+		.func = PMBUS_HAVE_TEMP2,
+		.sfunc = PMBUS_HAVE_STATUS_TEMP,
+		.sbase = PB_STATUS_TEMP_BASE,
+		.gbit = PB_STATUS_TEMPERATURE,
+		.limit = temp_limit_attrs2,
+		.nlimit = ARRAY_SIZE(temp_limit_attrs2),
+	}, {
+		.reg = PMBUS_READ_TEMPERATURE_3,
+		.class = PSC_TEMPERATURE,
+		.paged = true,
+		.update = true,
+		.compare = true,
+		.func = PMBUS_HAVE_TEMP3,
+		.sfunc = PMBUS_HAVE_STATUS_TEMP,
+		.sbase = PB_STATUS_TEMP_BASE,
+		.gbit = PB_STATUS_TEMPERATURE,
+		.limit = temp_limit_attrs3,
+		.nlimit = ARRAY_SIZE(temp_limit_attrs3),
+	}
+};
+
+static const int pmbus_fan_registers[] = {
+	PMBUS_READ_FAN_SPEED_1,
+	PMBUS_READ_FAN_SPEED_2,
+	PMBUS_READ_FAN_SPEED_3,
+	PMBUS_READ_FAN_SPEED_4
+};
+
+static const int pmbus_fan_config_registers[] = {
+	PMBUS_FAN_CONFIG_12,
+	PMBUS_FAN_CONFIG_12,
+	PMBUS_FAN_CONFIG_34,
+	PMBUS_FAN_CONFIG_34
+};
+
+static const int pmbus_fan_status_registers[] = {
+	PMBUS_STATUS_FAN_12,
+	PMBUS_STATUS_FAN_12,
+	PMBUS_STATUS_FAN_34,
+	PMBUS_STATUS_FAN_34
+};
+
+static const u32 pmbus_fan_flags[] = {
+	PMBUS_HAVE_FAN12,
+	PMBUS_HAVE_FAN12,
+	PMBUS_HAVE_FAN34,
+	PMBUS_HAVE_FAN34
+};
+
+static const u32 pmbus_fan_status_flags[] = {
+	PMBUS_HAVE_STATUS_FAN12,
+	PMBUS_HAVE_STATUS_FAN12,
+	PMBUS_HAVE_STATUS_FAN34,
+	PMBUS_HAVE_STATUS_FAN34
+};
+
+/* Fans */
+static int pmbus_add_fan_attributes(struct i2c_client *client,
+				    struct pmbus_data *data)
+{
+	const struct pmbus_driver_info *info = data->info;
+	int index = 1;
+	int page;
+	int ret;
+
+	for (page = 0; page < info->pages; page++) {
+		int f;
+
+		for (f = 0; f < ARRAY_SIZE(pmbus_fan_registers); f++) {
+			int regval;
+
+			if (!(info->func[page] & pmbus_fan_flags[f]))
+				break;
+
+			if (!pmbus_check_word_register(client, page,
+						       pmbus_fan_registers[f]))
+				break;
+
+			/*
+			 * Skip fan if not installed.
+			 * Each fan configuration register covers multiple fans,
+			 * so we have to do some magic.
+			 */
+			regval = _pmbus_read_byte_data(client, page,
+				pmbus_fan_config_registers[f]);
+			if (regval < 0 ||
+			    (!(regval & (PB_FAN_1_INSTALLED >> ((f & 1) * 4)))))
+				continue;
+
+			if (pmbus_add_sensor(data, "fan", "input", index,
+					     page, pmbus_fan_registers[f],
+					     PSC_FAN, true, true) == NULL)
+				return -ENOMEM;
+
+			/*
+			 * Each fan status register covers multiple fans,
+			 * so we have to do some magic.
+			 */
+			if ((info->func[page] & pmbus_fan_status_flags[f]) &&
+			    pmbus_check_byte_register(client,
+					page, pmbus_fan_status_registers[f])) {
+				int base;
+
+				if (f > 1)	/* fan 3, 4 */
+					base = PB_STATUS_FAN34_BASE + page;
+				else
+					base = PB_STATUS_FAN_BASE + page;
+				ret = pmbus_add_boolean(data, "fan",
+					"alarm", index, NULL, NULL, base,
+					PB_FAN_FAN1_WARNING >> (f & 1));
+				if (ret)
+					return ret;
+				ret = pmbus_add_boolean(data, "fan",
+					"fault", index, NULL, NULL, base,
+					PB_FAN_FAN1_FAULT >> (f & 1));
+				if (ret)
+					return ret;
+			}
+			index++;
+		}
+	}
+	return 0;
+}
+
+static const u32 pmbus_mfr_registers[] = {
+	PMBUS_MFR_ID,
+	PMBUS_MFR_MODEL,
+	PMBUS_MFR_REVISION,
+	/* 
+	 * PMBUS_MFR_LOCATION is not implemented according to spec
+	 * in the pfe1100;  rather than showing up as a block read,
+	 * it's a word read.  Even worse, our block read implementation
+	 * will get the first byte, 'A', and stomp all over our buffer,
+	 * rather than politely declining to read 65 bytes, as it should.
+	 *
+	 * Clearly, we should fix the implementation rather than hack it
+	 * in here, but we want to get this out the door.  With more
+	 * experience, hopefully we can come up with a more general
+	 * implmentation of the MFR register reads.
+	 */
+	PMBUS_MFR_DATE,
+	PMBUS_MFR_SERIAL,
+};
+
+static const char *pmbus_mfr_names[] = {
+	"mfr_id",
+	"mfr_model",
+	"mfr_revision",
+	/* "mfr_location", as mentioned above, is not readable */
+	"mfr_date",
+	"mfr_serial",
+};
+
+/* MFR info */
+static int pmbus_add_mfr_attributes(struct i2c_client *client,
+				    struct pmbus_data *data)
+{
+	int f;
+	char buf[I2C_SMBUS_BLOCK_MAX + 1];
+
+	if ((data->info->func[0] & PMBUS_HAVE_MFRDATA) == 0 ||
+	    !i2c_check_functionality(client->adapter,
+				     I2C_FUNC_SMBUS_READ_BLOCK_DATA))
+		return 0;
+
+	for (f = 0; f < ARRAY_SIZE(pmbus_mfr_registers); f++) {
+		int ret;
+
+		pmbus_wait(client);
+		ret = i2c_smbus_read_block_data(client, pmbus_mfr_registers[f],
+						buf);	
+		pmbus_update_wait(client);
+		if (ret <= 0)
+			continue;
+
+		buf[ret] = 0;
+		if (!(data->flags & PMBUS_SKIP_STATUS_CHECK)) {
+			ret = pmbus_check_status_cml(client);
+			pmbus_clear_fault_page(client, -1);
+			if (ret < 0)
+				continue;
+		}
+
+		/* Note that the label code truncates to PMBUS_NAME_SIZE */
+
+		ret = pmbus_add_label(data, pmbus_mfr_names[f], -1, buf, 0);
+		if (ret)
+			return ret;
+	}
+	return 0;
+}
+
+static int pmbus_find_attributes(struct i2c_client *client,
+				 struct pmbus_data *data)
+{
+	int ret;
+
+	/* Voltage sensors */
+	ret = pmbus_add_sensor_attrs(client, data, "in", voltage_attributes,
+				     ARRAY_SIZE(voltage_attributes));
+	if (ret)
+		return ret;
+
+	/* Current sensors */
+	ret = pmbus_add_sensor_attrs(client, data, "curr", current_attributes,
+				     ARRAY_SIZE(current_attributes));
+	if (ret)
+		return ret;
+
+	/* Power sensors */
+	ret = pmbus_add_sensor_attrs(client, data, "power", power_attributes,
+				     ARRAY_SIZE(power_attributes));
+	if (ret)
+		return ret;
+
+	/* Temperature sensors */
+	ret = pmbus_add_sensor_attrs(client, data, "temp", temp_attributes,
+				     ARRAY_SIZE(temp_attributes));
+	if (ret)
+		return ret;
+
+	/* Fans */
+	ret = pmbus_add_fan_attributes(client, data);
+	if (ret)
+		return ret;
+
+	/* Manufacturer strings */
+	ret = pmbus_add_mfr_attributes(client, data);
+	return ret;
+}
+
+/*
+ * Identify chip parameters.
+ * This function is called for all chips.
+ */
+static int pmbus_identify_common(struct i2c_client *client,
+				 struct pmbus_data *data)
+{
+	int vout_mode = -1;
+
+	if (pmbus_check_byte_register(client, 0, PMBUS_VOUT_MODE))
+		vout_mode = _pmbus_read_byte_data(client, 0, PMBUS_VOUT_MODE);
+	if (vout_mode >= 0 && vout_mode != 0xff) {
+		/*
+		 * Not all chips support the VOUT_MODE command,
+		 * so a failure to read it is not an error.
+		 */
+		switch (vout_mode >> 5) {
+		case 0:	/* linear mode      */
+			if (data->info->format[PSC_VOLTAGE_OUT] != linear)
+				return -ENODEV;
+
+			data->exponent = ((s8)(vout_mode << 3)) >> 3;
+			break;
+		case 1: /* VID mode         */
+			if (data->info->format[PSC_VOLTAGE_OUT] != vid)
+				return -ENODEV;
+			break;
+		case 2:	/* direct mode      */
+			if (data->info->format[PSC_VOLTAGE_OUT] != direct)
+				return -ENODEV;
+			break;
+		default:
+			return -ENODEV;
+		}
+	}
+
+	pmbus_clear_fault_page(client, 0);
+	return 0;
+}
+
+static int pmbus_init_common(struct i2c_client *client, struct pmbus_data *data,
+			     struct pmbus_driver_info *info)
+{
+	struct device *dev = &client->dev;
+	int ret;
+
+	/*
+	 * Some PMBus chips don't support PMBUS_STATUS_BYTE, so try
+	 * to use PMBUS_STATUS_WORD instead if that is the case.
+	 * Bail out if both registers are not supported.
+	 */
+	data->status_register = PMBUS_STATUS_WORD;
+	pmbus_wait(client);
+	ret = i2c_smbus_read_word_data(client, PMBUS_STATUS_WORD);
+	pmbus_update_wait(client);
+	if (ret < 0 || ret == 0xffff) {
+		data->status_register = PMBUS_STATUS_BYTE;
+		pmbus_wait(client);
+		ret = i2c_smbus_read_byte_data(client, PMBUS_STATUS_BYTE);
+		pmbus_update_wait(client);
+		if (ret < 0 || ret == 0xff) {
+			dev_err(dev, "PMBus status register not found\n");
+			return -ENODEV;
+		}
+	}
+
+	pmbus_clear_faults(client);
+
+	if (info->identify) {
+		ret = (*info->identify)(client, info);
+		if (ret < 0) {
+			dev_err(dev, "Chip identification failed\n");
+			return ret;
+		}
+	}
+
+	if (info->pages <= 0 || info->pages > PMBUS_PAGES) {
+		dev_err(dev, "Bad number of PMBus pages: %d\n", info->pages);
+		return -ENODEV;
+	}
+
+	ret = pmbus_identify_common(client, data);
+	if (ret < 0) {
+		dev_err(dev, "Failed to identify chip capabilities\n");
+		return ret;
+	}
+	return 0;
+}
+
+int pmbus_do_probe(struct i2c_client *client, const struct i2c_device_id *id,
+		   struct pmbus_driver_info *info)
+{
+	struct device *dev = &client->dev;
+	const struct pmbus_platform_data *pdata = dev->platform_data;
+	struct pmbus_data *data;
+	int ret;
+
+	if (!info)
+		return -ENODEV;
+
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WRITE_BYTE
+				     | I2C_FUNC_SMBUS_BYTE_DATA
+				     | I2C_FUNC_SMBUS_WORD_DATA))
+		return -ENODEV;
+
+	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
+	data->dev = dev;
+
+	if (pdata)
+		data->flags = pdata->flags;
+	data->info = info;
+	pmbus_update_wait(client);  /* Set time of access if info->delay */
+
+	ret = pmbus_init_common(client, data, info);
+	if (ret < 0)
+		return ret;
+
+	ret = pmbus_find_attributes(client, data);
+	if (ret)
+		goto out_kfree;
+
+	/*
+	 * If there are no attributes, something is wrong.
+	 * Bail out instead of trying to register nothing.
+	 */
+	if (!data->num_attributes) {
+		dev_err(dev, "No attributes found\n");
+		ret = -ENODEV;
+		goto out_kfree;
+	}
+
+	/* Register sysfs hooks */
+	ret = sysfs_create_group(&dev->kobj, &data->group);
+	if (ret) {
+		dev_err(dev, "Failed to create sysfs entries\n");
+		goto out_kfree;
+	}
+	data->hwmon_dev = hwmon_device_register(dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		ret = PTR_ERR(data->hwmon_dev);
+		dev_err(dev, "Failed to register hwmon device\n");
+		goto out_hwmon_device_register;
+	}
+	return 0;
+
+out_hwmon_device_register:
+	sysfs_remove_group(&dev->kobj, &data->group);
+out_kfree:
+	kfree(data->group.attrs);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(pmbus_do_probe);
+
+int pmbus_do_remove(struct i2c_client *client)
+{
+	struct pmbus_data *data = i2c_get_clientdata(client);
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &data->group);
+	kfree(data->group.attrs);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(pmbus_do_remove);
+
+MODULE_AUTHOR("Guenter Roeck");
+MODULE_DESCRIPTION("PMBus core driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/pmbus/ucd9000.c b/drivers/hwmon/pmbus/ucd9000.c
new file mode 100644
index 0000000..fbb1479
--- /dev/null
+++ b/drivers/hwmon/pmbus/ucd9000.c
@@ -0,0 +1,246 @@
+/*
+ * Hardware monitoring driver for UCD90xxx Sequencer and System Health
+ * Controller series
+ *
+ * Copyright (C) 2011 Ericsson AB.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/i2c/pmbus.h>
+#include "pmbus.h"
+
+enum chips { ucd9000, ucd90120, ucd90124, ucd9090, ucd90910 };
+
+#define UCD9000_MONITOR_CONFIG		0xd5
+#define UCD9000_NUM_PAGES		0xd6
+#define UCD9000_FAN_CONFIG_INDEX	0xe7
+#define UCD9000_FAN_CONFIG		0xe8
+#define UCD9000_DEVICE_ID		0xfd
+
+#define UCD9000_MON_TYPE(x)	(((x) >> 5) & 0x07)
+#define UCD9000_MON_PAGE(x)	((x) & 0x0f)
+
+#define UCD9000_MON_VOLTAGE	1
+#define UCD9000_MON_TEMPERATURE	2
+#define UCD9000_MON_CURRENT	3
+#define UCD9000_MON_VOLTAGE_HW	4
+
+#define UCD9000_NUM_FAN		4
+
+struct ucd9000_data {
+	u8 fan_data[UCD9000_NUM_FAN][I2C_SMBUS_BLOCK_MAX];
+	struct pmbus_driver_info info;
+};
+#define to_ucd9000_data(_info) container_of(_info, struct ucd9000_data, info)
+
+static int ucd9000_get_fan_config(struct i2c_client *client, int fan)
+{
+	int fan_config = 0;
+	struct ucd9000_data *data
+	  = to_ucd9000_data(pmbus_get_driver_info(client));
+
+	if (data->fan_data[fan][3] & 1)
+		fan_config |= PB_FAN_2_INSTALLED;   /* Use lower bit position */
+
+	/* Pulses/revolution */
+	fan_config |= (data->fan_data[fan][3] & 0x06) >> 1;
+
+	return fan_config;
+}
+
+static int ucd9000_read_byte_data(struct i2c_client *client, int page, int reg)
+{
+	int ret = 0;
+	int fan_config;
+
+	switch (reg) {
+	case PMBUS_FAN_CONFIG_12:
+		if (page > 0)
+			return -ENXIO;
+
+		ret = ucd9000_get_fan_config(client, 0);
+		if (ret < 0)
+			return ret;
+		fan_config = ret << 4;
+		ret = ucd9000_get_fan_config(client, 1);
+		if (ret < 0)
+			return ret;
+		fan_config |= ret;
+		ret = fan_config;
+		break;
+	case PMBUS_FAN_CONFIG_34:
+		if (page > 0)
+			return -ENXIO;
+
+		ret = ucd9000_get_fan_config(client, 2);
+		if (ret < 0)
+			return ret;
+		fan_config = ret << 4;
+		ret = ucd9000_get_fan_config(client, 3);
+		if (ret < 0)
+			return ret;
+		fan_config |= ret;
+		ret = fan_config;
+		break;
+	default:
+		ret = -ENODATA;
+		break;
+	}
+	return ret;
+}
+
+static const struct i2c_device_id ucd9000_id[] = {
+	{"ucd9000", ucd9000},
+	{"ucd90120", ucd90120},
+	{"ucd90124", ucd90124},
+	{"ucd9090", ucd9090},
+	{"ucd90910", ucd90910},
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, ucd9000_id);
+
+static int ucd9000_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	u8 block_buffer[I2C_SMBUS_BLOCK_MAX + 1];
+	struct ucd9000_data *data;
+	struct pmbus_driver_info *info;
+	const struct i2c_device_id *mid;
+	int i, ret;
+
+	if (!i2c_check_functionality(client->adapter,
+				     I2C_FUNC_SMBUS_BYTE_DATA |
+				     I2C_FUNC_SMBUS_BLOCK_DATA))
+		return -ENODEV;
+
+	ret = i2c_smbus_read_block_data(client, UCD9000_DEVICE_ID,
+					block_buffer);
+	if (ret < 0) {
+		dev_err(&client->dev, "Failed to read device ID\n");
+		return ret;
+	}
+	block_buffer[ret] = '\0';
+	dev_info(&client->dev, "Device ID %s\n", block_buffer);
+
+	for (mid = ucd9000_id; mid->name[0]; mid++) {
+		if (!strncasecmp(mid->name, block_buffer, strlen(mid->name)))
+			break;
+	}
+	if (!mid->name[0]) {
+		dev_err(&client->dev, "Unsupported device\n");
+		return -ENODEV;
+	}
+
+	if (id->driver_data != ucd9000 && id->driver_data != mid->driver_data)
+		dev_notice(&client->dev,
+			   "Device mismatch: Configured %s, detected %s\n",
+			   id->name, mid->name);
+
+	data = devm_kzalloc(&client->dev, sizeof(struct ucd9000_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+	info = &data->info;
+
+	ret = i2c_smbus_read_byte_data(client, UCD9000_NUM_PAGES);
+	if (ret < 0) {
+		dev_err(&client->dev,
+			"Failed to read number of active pages\n");
+		return ret;
+	}
+	info->pages = ret;
+	if (!info->pages) {
+		dev_err(&client->dev, "No pages configured\n");
+		return -ENODEV;
+	}
+
+	/* The internal temperature sensor is always active */
+	info->func[0] = PMBUS_HAVE_TEMP;
+
+	/* Everything else is configurable */
+	ret = i2c_smbus_read_block_data(client, UCD9000_MONITOR_CONFIG,
+					block_buffer);
+	if (ret <= 0) {
+		dev_err(&client->dev, "Failed to read configuration data\n");
+		return -ENODEV;
+	}
+	for (i = 0; i < ret; i++) {
+		int page = UCD9000_MON_PAGE(block_buffer[i]);
+
+		if (page >= info->pages)
+			continue;
+
+		switch (UCD9000_MON_TYPE(block_buffer[i])) {
+		case UCD9000_MON_VOLTAGE:
+		case UCD9000_MON_VOLTAGE_HW:
+			info->func[page] |= PMBUS_HAVE_VOUT
+			  | PMBUS_HAVE_STATUS_VOUT;
+			break;
+		case UCD9000_MON_TEMPERATURE:
+			info->func[page] |= PMBUS_HAVE_TEMP2
+			  | PMBUS_HAVE_STATUS_TEMP;
+			break;
+		case UCD9000_MON_CURRENT:
+			info->func[page] |= PMBUS_HAVE_IOUT
+			  | PMBUS_HAVE_STATUS_IOUT;
+			break;
+		default:
+			break;
+		}
+	}
+
+	/* Fan configuration */
+	if (mid->driver_data == ucd90124) {
+		for (i = 0; i < UCD9000_NUM_FAN; i++) {
+			i2c_smbus_write_byte_data(client,
+						  UCD9000_FAN_CONFIG_INDEX, i);
+			ret = i2c_smbus_read_block_data(client,
+							UCD9000_FAN_CONFIG,
+							data->fan_data[i]);
+			if (ret < 0)
+				return ret;
+		}
+		i2c_smbus_write_byte_data(client, UCD9000_FAN_CONFIG_INDEX, 0);
+
+		info->read_byte_data = ucd9000_read_byte_data;
+		info->func[0] |= PMBUS_HAVE_FAN12 | PMBUS_HAVE_STATUS_FAN12
+		  | PMBUS_HAVE_FAN34 | PMBUS_HAVE_STATUS_FAN34;
+	}
+
+	return pmbus_do_probe(client, mid, info);
+}
+
+/* This is the driver that will be inserted */
+static struct i2c_driver ucd9000_driver = {
+	.driver = {
+		.name = "ucd9000",
+	},
+	.probe = ucd9000_probe,
+	.remove = pmbus_do_remove,
+	.id_table = ucd9000_id,
+};
+
+module_i2c_driver(ucd9000_driver);
+
+MODULE_AUTHOR("Guenter Roeck");
+MODULE_DESCRIPTION("PMBus driver for TI UCD90xxx");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/pmbus/ucd9200.c b/drivers/hwmon/pmbus/ucd9200.c
new file mode 100644
index 0000000..033d6ac
--- /dev/null
+++ b/drivers/hwmon/pmbus/ucd9200.c
@@ -0,0 +1,180 @@
+/*
+ * Hardware monitoring driver for ucd9200 series Digital PWM System Controllers
+ *
+ * Copyright (C) 2011 Ericsson AB.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/i2c/pmbus.h>
+#include "pmbus.h"
+
+#define UCD9200_PHASE_INFO	0xd2
+#define UCD9200_DEVICE_ID	0xfd
+
+enum chips { ucd9200, ucd9220, ucd9222, ucd9224, ucd9240, ucd9244, ucd9246,
+	     ucd9248 };
+
+static const struct i2c_device_id ucd9200_id[] = {
+	{"ucd9200", ucd9200},
+	{"ucd9220", ucd9220},
+	{"ucd9222", ucd9222},
+	{"ucd9224", ucd9224},
+	{"ucd9240", ucd9240},
+	{"ucd9244", ucd9244},
+	{"ucd9246", ucd9246},
+	{"ucd9248", ucd9248},
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, ucd9200_id);
+
+static int ucd9200_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	u8 block_buffer[I2C_SMBUS_BLOCK_MAX + 1];
+	struct pmbus_driver_info *info;
+	const struct i2c_device_id *mid;
+	int i, j, ret;
+
+	if (!i2c_check_functionality(client->adapter,
+				     I2C_FUNC_SMBUS_BYTE_DATA |
+				     I2C_FUNC_SMBUS_BLOCK_DATA))
+		return -ENODEV;
+
+	ret = i2c_smbus_read_block_data(client, UCD9200_DEVICE_ID,
+					block_buffer);
+	if (ret < 0) {
+		dev_err(&client->dev, "Failed to read device ID\n");
+		return ret;
+	}
+	block_buffer[ret] = '\0';
+	dev_info(&client->dev, "Device ID %s\n", block_buffer);
+
+	for (mid = ucd9200_id; mid->name[0]; mid++) {
+		if (!strncasecmp(mid->name, block_buffer, strlen(mid->name)))
+			break;
+	}
+	if (!mid->name[0]) {
+		dev_err(&client->dev, "Unsupported device\n");
+		return -ENODEV;
+	}
+	if (id->driver_data != ucd9200 && id->driver_data != mid->driver_data)
+		dev_notice(&client->dev,
+			   "Device mismatch: Configured %s, detected %s\n",
+			   id->name, mid->name);
+
+	info = devm_kzalloc(&client->dev, sizeof(struct pmbus_driver_info),
+			    GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
+	ret = i2c_smbus_read_block_data(client, UCD9200_PHASE_INFO,
+					block_buffer);
+	if (ret < 0) {
+		dev_err(&client->dev, "Failed to read phase information\n");
+		return ret;
+	}
+
+	/*
+	 * Calculate number of configured pages (rails) from PHASE_INFO
+	 * register.
+	 * Rails have to be sequential, so we can abort after finding
+	 * the first unconfigured rail.
+	 */
+	info->pages = 0;
+	for (i = 0; i < ret; i++) {
+		if (!block_buffer[i])
+			break;
+		info->pages++;
+	}
+	if (!info->pages) {
+		dev_err(&client->dev, "No rails configured\n");
+		return -ENODEV;
+	}
+	dev_info(&client->dev, "%d rails configured\n", info->pages);
+
+	/*
+	 * Set PHASE registers on all pages to 0xff to ensure that phase
+	 * specific commands will apply to all phases of a given page (rail).
+	 * This only affects the READ_IOUT and READ_TEMPERATURE2 registers.
+	 * READ_IOUT will return the sum of currents of all phases of a rail,
+	 * and READ_TEMPERATURE2 will return the maximum temperature detected
+	 * for the the phases of the rail.
+	 */
+	for (i = 0; i < info->pages; i++) {
+		/*
+		 * Setting PAGE & PHASE fails once in a while for no obvious
+		 * reason, so we need to retry a couple of times.
+		 */
+		for (j = 0; j < 3; j++) {
+			ret = i2c_smbus_write_byte_data(client, PMBUS_PAGE, i);
+			if (ret < 0)
+				continue;
+			ret = i2c_smbus_write_byte_data(client, PMBUS_PHASE,
+							0xff);
+			if (ret < 0)
+				continue;
+			break;
+		}
+		if (ret < 0) {
+			dev_err(&client->dev,
+				"Failed to initialize PHASE registers\n");
+			return ret;
+		}
+	}
+	if (info->pages > 1)
+		i2c_smbus_write_byte_data(client, PMBUS_PAGE, 0);
+
+	info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT |
+			PMBUS_HAVE_IIN | PMBUS_HAVE_PIN |
+			PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT |
+			PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
+			PMBUS_HAVE_POUT | PMBUS_HAVE_TEMP |
+			PMBUS_HAVE_TEMP2 | PMBUS_HAVE_STATUS_TEMP;
+
+	for (i = 1; i < info->pages; i++)
+		info->func[i] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT |
+			PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
+			PMBUS_HAVE_POUT |
+			PMBUS_HAVE_TEMP2 | PMBUS_HAVE_STATUS_TEMP;
+
+	/* ucd9240 supports a single fan */
+	if (mid->driver_data == ucd9240)
+		info->func[0] |= PMBUS_HAVE_FAN12 | PMBUS_HAVE_STATUS_FAN12;
+
+	return pmbus_do_probe(client, mid, info);
+}
+
+/* This is the driver that will be inserted */
+static struct i2c_driver ucd9200_driver = {
+	.driver = {
+		.name = "ucd9200",
+	},
+	.probe = ucd9200_probe,
+	.remove = pmbus_do_remove,
+	.id_table = ucd9200_id,
+};
+
+module_i2c_driver(ucd9200_driver);
+
+MODULE_AUTHOR("Guenter Roeck");
+MODULE_DESCRIPTION("PMBus driver for TI UCD922x, UCD924x");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/pmbus/zl6100.c b/drivers/hwmon/pmbus/zl6100.c
new file mode 100644
index 0000000..8196441
--- /dev/null
+++ b/drivers/hwmon/pmbus/zl6100.c
@@ -0,0 +1,419 @@
+/*
+ * Hardware monitoring driver for ZL6100 and compatibles
+ *
+ * Copyright (c) 2011 Ericsson AB.
+ * Copyright (c) 2012 Guenter Roeck
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/ktime.h>
+#include <linux/delay.h>
+#include "pmbus.h"
+
+enum chips { zl2004, zl2005, zl2006, zl2008, zl2105, zl2106, zl6100, zl6105,
+	     zl9101, zl9117 };
+
+struct zl6100_data {
+	int id;
+	ktime_t access;		/* chip access time */
+	int delay;		/* Delay between chip accesses in uS */
+	struct pmbus_driver_info info;
+};
+
+#define to_zl6100_data(x)  container_of(x, struct zl6100_data, info)
+
+#define ZL6100_MFR_CONFIG		0xd0
+#define ZL6100_DEVICE_ID		0xe4
+
+#define ZL6100_MFR_XTEMP_ENABLE		(1 << 7)
+
+#define MFR_VMON_OV_FAULT_LIMIT		0xf5
+#define MFR_VMON_UV_FAULT_LIMIT		0xf6
+#define MFR_READ_VMON			0xf7
+
+#define VMON_UV_WARNING			(1 << 5)
+#define VMON_OV_WARNING			(1 << 4)
+#define VMON_UV_FAULT			(1 << 1)
+#define VMON_OV_FAULT			(1 << 0)
+
+#define ZL6100_WAIT_TIME		1000	/* uS	*/
+
+static ushort delay = ZL6100_WAIT_TIME;
+module_param(delay, ushort, 0644);
+MODULE_PARM_DESC(delay, "Delay between chip accesses in uS");
+
+/* Convert linear sensor value to milli-units */
+static long zl6100_l2d(s16 l)
+{
+	s16 exponent;
+	s32 mantissa;
+	long val;
+
+	exponent = l >> 11;
+	mantissa = ((s16)((l & 0x7ff) << 5)) >> 5;
+
+	val = mantissa;
+
+	/* scale result to milli-units */
+	val = val * 1000L;
+
+	if (exponent >= 0)
+		val <<= exponent;
+	else
+		val >>= -exponent;
+
+	return val;
+}
+
+#define MAX_MANTISSA	(1023 * 1000)
+#define MIN_MANTISSA	(511 * 1000)
+
+static u16 zl6100_d2l(long val)
+{
+	s16 exponent = 0, mantissa;
+	bool negative = false;
+
+	/* simple case */
+	if (val == 0)
+		return 0;
+
+	if (val < 0) {
+		negative = true;
+		val = -val;
+	}
+
+	/* Reduce large mantissa until it fits into 10 bit */
+	while (val >= MAX_MANTISSA && exponent < 15) {
+		exponent++;
+		val >>= 1;
+	}
+	/* Increase small mantissa to improve precision */
+	while (val < MIN_MANTISSA && exponent > -15) {
+		exponent--;
+		val <<= 1;
+	}
+
+	/* Convert mantissa from milli-units to units */
+	mantissa = DIV_ROUND_CLOSEST(val, 1000);
+
+	/* Ensure that resulting number is within range */
+	if (mantissa > 0x3ff)
+		mantissa = 0x3ff;
+
+	/* restore sign */
+	if (negative)
+		mantissa = -mantissa;
+
+	/* Convert to 5 bit exponent, 11 bit mantissa */
+	return (mantissa & 0x7ff) | ((exponent << 11) & 0xf800);
+}
+
+/* Some chips need a delay between accesses */
+static inline void zl6100_wait(const struct zl6100_data *data)
+{
+	if (data->delay) {
+		s64 delta = ktime_us_delta(ktime_get(), data->access);
+		if (delta < data->delay)
+			udelay(data->delay - delta);
+	}
+}
+
+static int zl6100_read_word_data(struct i2c_client *client, int page, int reg)
+{
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	struct zl6100_data *data = to_zl6100_data(info);
+	int ret, vreg;
+
+	if (page > 0)
+		return -ENXIO;
+
+	if (data->id == zl2005) {
+		/*
+		 * Limit register detection is not reliable on ZL2005.
+		 * Make sure registers are not erroneously detected.
+		 */
+		switch (reg) {
+		case PMBUS_VOUT_OV_WARN_LIMIT:
+		case PMBUS_VOUT_UV_WARN_LIMIT:
+		case PMBUS_IOUT_OC_WARN_LIMIT:
+			return -ENXIO;
+		}
+	}
+
+	switch (reg) {
+	case PMBUS_VIRT_READ_VMON:
+		vreg = MFR_READ_VMON;
+		break;
+	case PMBUS_VIRT_VMON_OV_WARN_LIMIT:
+	case PMBUS_VIRT_VMON_OV_FAULT_LIMIT:
+		vreg = MFR_VMON_OV_FAULT_LIMIT;
+		break;
+	case PMBUS_VIRT_VMON_UV_WARN_LIMIT:
+	case PMBUS_VIRT_VMON_UV_FAULT_LIMIT:
+		vreg = MFR_VMON_UV_FAULT_LIMIT;
+		break;
+	default:
+		if (reg >= PMBUS_VIRT_BASE)
+			return -ENXIO;
+		vreg = reg;
+		break;
+	}
+
+	zl6100_wait(data);
+	ret = pmbus_read_word_data(client, page, vreg);
+	data->access = ktime_get();
+	if (ret < 0)
+		return ret;
+
+	switch (reg) {
+	case PMBUS_VIRT_VMON_OV_WARN_LIMIT:
+		ret = zl6100_d2l(DIV_ROUND_CLOSEST(zl6100_l2d(ret) * 9, 10));
+		break;
+	case PMBUS_VIRT_VMON_UV_WARN_LIMIT:
+		ret = zl6100_d2l(DIV_ROUND_CLOSEST(zl6100_l2d(ret) * 11, 10));
+		break;
+	}
+
+	return ret;
+}
+
+static int zl6100_read_byte_data(struct i2c_client *client, int page, int reg)
+{
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	struct zl6100_data *data = to_zl6100_data(info);
+	int ret, status;
+
+	if (page > 0)
+		return -ENXIO;
+
+	zl6100_wait(data);
+
+	switch (reg) {
+	case PMBUS_VIRT_STATUS_VMON:
+		ret = pmbus_read_byte_data(client, 0,
+					   PMBUS_STATUS_MFR_SPECIFIC);
+		if (ret < 0)
+			break;
+
+		status = 0;
+		if (ret & VMON_UV_WARNING)
+			status |= PB_VOLTAGE_UV_WARNING;
+		if (ret & VMON_OV_WARNING)
+			status |= PB_VOLTAGE_OV_WARNING;
+		if (ret & VMON_UV_FAULT)
+			status |= PB_VOLTAGE_UV_FAULT;
+		if (ret & VMON_OV_FAULT)
+			status |= PB_VOLTAGE_OV_FAULT;
+		ret = status;
+		break;
+	default:
+		ret = pmbus_read_byte_data(client, page, reg);
+		break;
+	}
+	data->access = ktime_get();
+
+	return ret;
+}
+
+static int zl6100_write_word_data(struct i2c_client *client, int page, int reg,
+				  u16 word)
+{
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	struct zl6100_data *data = to_zl6100_data(info);
+	int ret, vreg;
+
+	if (page > 0)
+		return -ENXIO;
+
+	switch (reg) {
+	case PMBUS_VIRT_VMON_OV_WARN_LIMIT:
+		word = zl6100_d2l(DIV_ROUND_CLOSEST(zl6100_l2d(word) * 10, 9));
+		vreg = MFR_VMON_OV_FAULT_LIMIT;
+		pmbus_clear_cache(client);
+		break;
+	case PMBUS_VIRT_VMON_OV_FAULT_LIMIT:
+		vreg = MFR_VMON_OV_FAULT_LIMIT;
+		pmbus_clear_cache(client);
+		break;
+	case PMBUS_VIRT_VMON_UV_WARN_LIMIT:
+		word = zl6100_d2l(DIV_ROUND_CLOSEST(zl6100_l2d(word) * 10, 11));
+		vreg = MFR_VMON_UV_FAULT_LIMIT;
+		pmbus_clear_cache(client);
+		break;
+	case PMBUS_VIRT_VMON_UV_FAULT_LIMIT:
+		vreg = MFR_VMON_UV_FAULT_LIMIT;
+		pmbus_clear_cache(client);
+		break;
+	default:
+		if (reg >= PMBUS_VIRT_BASE)
+			return -ENXIO;
+		vreg = reg;
+	}
+
+	zl6100_wait(data);
+	ret = pmbus_write_word_data(client, page, vreg, word);
+	data->access = ktime_get();
+
+	return ret;
+}
+
+static int zl6100_write_byte(struct i2c_client *client, int page, u8 value)
+{
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	struct zl6100_data *data = to_zl6100_data(info);
+	int ret;
+
+	if (page > 0)
+		return -ENXIO;
+
+	zl6100_wait(data);
+	ret = pmbus_write_byte(client, page, value);
+	data->access = ktime_get();
+
+	return ret;
+}
+
+static const struct i2c_device_id zl6100_id[] = {
+	{"bmr450", zl2005},
+	{"bmr451", zl2005},
+	{"bmr462", zl2008},
+	{"bmr463", zl2008},
+	{"bmr464", zl2008},
+	{"zl2004", zl2004},
+	{"zl2005", zl2005},
+	{"zl2006", zl2006},
+	{"zl2008", zl2008},
+	{"zl2105", zl2105},
+	{"zl2106", zl2106},
+	{"zl6100", zl6100},
+	{"zl6105", zl6105},
+	{"zl9101", zl9101},
+	{"zl9117", zl9117},
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, zl6100_id);
+
+static int zl6100_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	int ret;
+	struct zl6100_data *data;
+	struct pmbus_driver_info *info;
+	u8 device_id[I2C_SMBUS_BLOCK_MAX + 1];
+	const struct i2c_device_id *mid;
+
+	if (!i2c_check_functionality(client->adapter,
+				     I2C_FUNC_SMBUS_READ_WORD_DATA
+				     | I2C_FUNC_SMBUS_READ_BLOCK_DATA))
+		return -ENODEV;
+
+	ret = i2c_smbus_read_block_data(client, ZL6100_DEVICE_ID,
+					device_id);
+	if (ret < 0) {
+		dev_err(&client->dev, "Failed to read device ID\n");
+		return ret;
+	}
+	device_id[ret] = '\0';
+	dev_info(&client->dev, "Device ID %s\n", device_id);
+
+	mid = NULL;
+	for (mid = zl6100_id; mid->name[0]; mid++) {
+		if (!strncasecmp(mid->name, device_id, strlen(mid->name)))
+			break;
+	}
+	if (!mid->name[0]) {
+		dev_err(&client->dev, "Unsupported device\n");
+		return -ENODEV;
+	}
+	if (id->driver_data != mid->driver_data)
+		dev_notice(&client->dev,
+			   "Device mismatch: Configured %s, detected %s\n",
+			   id->name, mid->name);
+
+	data = devm_kzalloc(&client->dev, sizeof(struct zl6100_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->id = mid->driver_data;
+
+	/*
+	 * According to information from the chip vendor, all currently
+	 * supported chips are known to require a wait time between I2C
+	 * accesses.
+	 */
+	data->delay = delay;
+
+	/*
+	 * Since there was a direct I2C device access above, wait before
+	 * accessing the chip again.
+	 */
+	data->access = ktime_get();
+	zl6100_wait(data);
+
+	info = &data->info;
+
+	info->pages = 1;
+	info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT
+	  | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+	  | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT
+	  | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP;
+
+	/*
+	 * ZL2004, ZL9101M, and ZL9117M support monitoring an extra voltage
+	 * (VMON for ZL2004, VDRV for ZL9101M and ZL9117M). Report it as vmon.
+	 */
+	if (data->id == zl2004 || data->id == zl9101 || data->id == zl9117)
+		info->func[0] |= PMBUS_HAVE_VMON | PMBUS_HAVE_STATUS_VMON;
+
+	ret = i2c_smbus_read_word_data(client, ZL6100_MFR_CONFIG);
+	if (ret < 0)
+		return ret;
+
+	if (ret & ZL6100_MFR_XTEMP_ENABLE)
+		info->func[0] |= PMBUS_HAVE_TEMP2;
+
+	data->access = ktime_get();
+	zl6100_wait(data);
+
+	info->read_word_data = zl6100_read_word_data;
+	info->read_byte_data = zl6100_read_byte_data;
+	info->write_word_data = zl6100_write_word_data;
+	info->write_byte = zl6100_write_byte;
+
+	return pmbus_do_probe(client, mid, info);
+}
+
+static struct i2c_driver zl6100_driver = {
+	.driver = {
+		   .name = "zl6100",
+		   },
+	.probe = zl6100_probe,
+	.remove = pmbus_do_remove,
+	.id_table = zl6100_id,
+};
+
+module_i2c_driver(zl6100_driver);
+
+MODULE_AUTHOR("Guenter Roeck");
+MODULE_DESCRIPTION("PMBus driver for ZL6100 and compatibles");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/sis5595.c b/drivers/hwmon/sis5595.c
new file mode 100644
index 0000000..a276806
--- /dev/null
+++ b/drivers/hwmon/sis5595.c
@@ -0,0 +1,866 @@
+/*
+    sis5595.c - Part of lm_sensors, Linux kernel modules
+		for hardware monitoring
+
+    Copyright (C) 1998 - 2001 Frodo Looijaard <frodol@dds.nl>,
+			Kyösti Mälkki <kmalkki@cc.hut.fi>, and
+			Mark D. Studebaker <mdsxyz123@yahoo.com>
+    Ported to Linux 2.6 by Aurelien Jarno <aurelien@aurel32.net> with
+    the help of Jean Delvare <khali@linux-fr.org>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+   SiS southbridge has a LM78-like chip integrated on the same IC.
+   This driver is a customized copy of lm78.c
+   
+   Supports following revisions:
+	Version		PCI ID		PCI Revision
+	1		1039/0008	AF or less
+	2		1039/0008	B0 or greater
+
+   Note: these chips contain a 0008 device which is incompatible with the
+	 5595. We recognize these by the presence of the listed
+	 "blacklist" PCI ID and refuse to load.
+
+   NOT SUPPORTED	PCI ID		BLACKLIST PCI ID	
+	 540		0008		0540
+	 550		0008		0550
+	5513		0008		5511
+	5581		0008		5597
+	5582		0008		5597
+	5597		0008		5597
+	5598		0008		5597/5598
+	 630		0008		0630
+	 645		0008		0645
+	 730		0008		0730
+	 735		0008		0735
+*/
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/jiffies.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+#include <asm/io.h>
+
+
+/* If force_addr is set to anything different from 0, we forcibly enable
+   the device at the given address. */
+static u16 force_addr;
+module_param(force_addr, ushort, 0);
+MODULE_PARM_DESC(force_addr,
+		 "Initialize the base address of the sensors");
+
+static struct platform_device *pdev;
+
+/* Many SIS5595 constants specified below */
+
+/* Length of ISA address segment */
+#define SIS5595_EXTENT 8
+/* PCI Config Registers */
+#define SIS5595_BASE_REG 0x68
+#define SIS5595_PIN_REG 0x7A
+#define SIS5595_ENABLE_REG 0x7B
+
+/* Where are the ISA address/data registers relative to the base address */
+#define SIS5595_ADDR_REG_OFFSET 5
+#define SIS5595_DATA_REG_OFFSET 6
+
+/* The SIS5595 registers */
+#define SIS5595_REG_IN_MAX(nr) (0x2b + (nr) * 2)
+#define SIS5595_REG_IN_MIN(nr) (0x2c + (nr) * 2)
+#define SIS5595_REG_IN(nr) (0x20 + (nr))
+
+#define SIS5595_REG_FAN_MIN(nr) (0x3b + (nr))
+#define SIS5595_REG_FAN(nr) (0x28 + (nr))
+
+/* On the first version of the chip, the temp registers are separate.
+   On the second version,
+   TEMP pin is shared with IN4, configured in PCI register 0x7A.
+   The registers are the same as well.
+   OVER and HYST are really MAX and MIN. */
+
+#define REV2MIN	0xb0
+#define SIS5595_REG_TEMP 	(( data->revision) >= REV2MIN) ? \
+					SIS5595_REG_IN(4) : 0x27
+#define SIS5595_REG_TEMP_OVER	(( data->revision) >= REV2MIN) ? \
+					SIS5595_REG_IN_MAX(4) : 0x39
+#define SIS5595_REG_TEMP_HYST	(( data->revision) >= REV2MIN) ? \
+					SIS5595_REG_IN_MIN(4) : 0x3a
+
+#define SIS5595_REG_CONFIG 0x40
+#define SIS5595_REG_ALARM1 0x41
+#define SIS5595_REG_ALARM2 0x42
+#define SIS5595_REG_FANDIV 0x47
+
+/* Conversions. Limit checking is only done on the TO_REG
+   variants. */
+
+/* IN: mV, (0V to 4.08V)
+   REG: 16mV/bit */
+static inline u8 IN_TO_REG(unsigned long val)
+{
+	unsigned long nval = SENSORS_LIMIT(val, 0, 4080);
+	return (nval + 8) / 16;
+}
+#define IN_FROM_REG(val) ((val) *  16)
+
+static inline u8 FAN_TO_REG(long rpm, int div)
+{
+	if (rpm <= 0)
+		return 255;
+	return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
+}
+
+static inline int FAN_FROM_REG(u8 val, int div)
+{
+	return val==0 ? -1 : val==255 ? 0 : 1350000/(val*div);
+}
+
+/* TEMP: mC (-54.12C to +157.53C)
+   REG: 0.83C/bit + 52.12, two's complement  */
+static inline int TEMP_FROM_REG(s8 val)
+{
+	return val * 830 + 52120;
+}
+static inline s8 TEMP_TO_REG(int val)
+{
+	int nval = SENSORS_LIMIT(val, -54120, 157530) ;
+	return nval<0 ? (nval-5212-415)/830 : (nval-5212+415)/830;
+}
+
+/* FAN DIV: 1, 2, 4, or 8 (defaults to 2)
+   REG: 0, 1, 2, or 3 (respectively) (defaults to 1) */
+static inline u8 DIV_TO_REG(int val)
+{
+	return val==8 ? 3 : val==4 ? 2 : val==1 ? 0 : 1;
+}
+#define DIV_FROM_REG(val) (1 << (val))
+
+/* For each registered chip, we need to keep some data in memory.
+   The structure is dynamically allocated. */
+struct sis5595_data {
+	unsigned short addr;
+	const char *name;
+	struct device *hwmon_dev;
+	struct mutex lock;
+
+	struct mutex update_lock;
+	char valid;		/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+	char maxins;		/* == 3 if temp enabled, otherwise == 4 */
+	u8 revision;		/* Reg. value */
+
+	u8 in[5];		/* Register value */
+	u8 in_max[5];		/* Register value */
+	u8 in_min[5];		/* Register value */
+	u8 fan[2];		/* Register value */
+	u8 fan_min[2];		/* Register value */
+	s8 temp;		/* Register value */
+	s8 temp_over;		/* Register value */
+	s8 temp_hyst;		/* Register value */
+	u8 fan_div[2];		/* Register encoding, shifted right */
+	u16 alarms;		/* Register encoding, combined */
+};
+
+static struct pci_dev *s_bridge;	/* pointer to the (only) sis5595 */
+
+static int sis5595_probe(struct platform_device *pdev);
+static int __devexit sis5595_remove(struct platform_device *pdev);
+
+static int sis5595_read_value(struct sis5595_data *data, u8 reg);
+static void sis5595_write_value(struct sis5595_data *data, u8 reg, u8 value);
+static struct sis5595_data *sis5595_update_device(struct device *dev);
+static void sis5595_init_device(struct sis5595_data *data);
+
+static struct platform_driver sis5595_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= "sis5595",
+	},
+	.probe		= sis5595_probe,
+	.remove		= __devexit_p(sis5595_remove),
+};
+
+/* 4 Voltages */
+static ssize_t show_in(struct device *dev, struct device_attribute *da,
+		       char *buf)
+{
+	struct sis5595_data *data = sis5595_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr]));
+}
+
+static ssize_t show_in_min(struct device *dev, struct device_attribute *da,
+			   char *buf)
+{
+	struct sis5595_data *data = sis5595_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr]));
+}
+
+static ssize_t show_in_max(struct device *dev, struct device_attribute *da,
+			   char *buf)
+{
+	struct sis5595_data *data = sis5595_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr]));
+}
+
+static ssize_t set_in_min(struct device *dev, struct device_attribute *da,
+			  const char *buf, size_t count)
+{
+	struct sis5595_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_min[nr] = IN_TO_REG(val);
+	sis5595_write_value(data, SIS5595_REG_IN_MIN(nr), data->in_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t set_in_max(struct device *dev, struct device_attribute *da,
+			  const char *buf, size_t count)
+{
+	struct sis5595_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_max[nr] = IN_TO_REG(val);
+	sis5595_write_value(data, SIS5595_REG_IN_MAX(nr), data->in_max[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define show_in_offset(offset)					\
+static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO,		\
+		show_in, NULL, offset);				\
+static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,	\
+		show_in_min, set_in_min, offset);		\
+static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,	\
+		show_in_max, set_in_max, offset);
+
+show_in_offset(0);
+show_in_offset(1);
+show_in_offset(2);
+show_in_offset(3);
+show_in_offset(4);
+
+/* Temperature */
+static ssize_t show_temp(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sis5595_data *data = sis5595_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp));
+}
+
+static ssize_t show_temp_over(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sis5595_data *data = sis5595_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_over));
+}
+
+static ssize_t set_temp_over(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct sis5595_data *data = dev_get_drvdata(dev);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_over = TEMP_TO_REG(val);
+	sis5595_write_value(data, SIS5595_REG_TEMP_OVER, data->temp_over);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_temp_hyst(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sis5595_data *data = sis5595_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_hyst));
+}
+
+static ssize_t set_temp_hyst(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct sis5595_data *data = dev_get_drvdata(dev);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_hyst = TEMP_TO_REG(val);
+	sis5595_write_value(data, SIS5595_REG_TEMP_HYST, data->temp_hyst);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL);
+static DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR,
+		show_temp_over, set_temp_over);
+static DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR,
+		show_temp_hyst, set_temp_hyst);
+
+/* 2 Fans */
+static ssize_t show_fan(struct device *dev, struct device_attribute *da,
+			char *buf)
+{
+	struct sis5595_data *data = sis5595_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],
+		DIV_FROM_REG(data->fan_div[nr])) );
+}
+
+static ssize_t show_fan_min(struct device *dev, struct device_attribute *da,
+			    char *buf)
+{
+	struct sis5595_data *data = sis5595_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr],
+		DIV_FROM_REG(data->fan_div[nr])) );
+}
+
+static ssize_t set_fan_min(struct device *dev, struct device_attribute *da,
+			   const char *buf, size_t count)
+{
+	struct sis5595_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
+	sis5595_write_value(data, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_fan_div(struct device *dev, struct device_attribute *da,
+			    char *buf)
+{
+	struct sis5595_data *data = sis5595_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]) );
+}
+
+/* Note: we save and restore the fan minimum here, because its value is
+   determined in part by the fan divisor.  This follows the principle of
+   least surprise; the user doesn't expect the fan minimum to change just
+   because the divisor changed. */
+static ssize_t set_fan_div(struct device *dev, struct device_attribute *da,
+			   const char *buf, size_t count)
+{
+	struct sis5595_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	unsigned long min;
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+	int reg;
+
+	mutex_lock(&data->update_lock);
+	min = FAN_FROM_REG(data->fan_min[nr],
+			DIV_FROM_REG(data->fan_div[nr]));
+	reg = sis5595_read_value(data, SIS5595_REG_FANDIV);
+
+	switch (val) {
+	case 1: data->fan_div[nr] = 0; break;
+	case 2: data->fan_div[nr] = 1; break;
+	case 4: data->fan_div[nr] = 2; break;
+	case 8: data->fan_div[nr] = 3; break;
+	default:
+		dev_err(dev, "fan_div value %ld not "
+			"supported. Choose one of 1, 2, 4 or 8!\n", val);
+		mutex_unlock(&data->update_lock);
+		return -EINVAL;
+	}
+	
+	switch (nr) {
+	case 0:
+		reg = (reg & 0xcf) | (data->fan_div[nr] << 4);
+		break;
+	case 1:
+		reg = (reg & 0x3f) | (data->fan_div[nr] << 6);
+		break;
+	}
+	sis5595_write_value(data, SIS5595_REG_FANDIV, reg);
+	data->fan_min[nr] =
+		FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
+	sis5595_write_value(data, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define show_fan_offset(offset)						\
+static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO,			\
+		show_fan, NULL, offset - 1);				\
+static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,		\
+		show_fan_min, set_fan_min, offset - 1);			\
+static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR,		\
+		show_fan_div, set_fan_div, offset - 1);
+
+show_fan_offset(1);
+show_fan_offset(2);
+
+/* Alarms */
+static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sis5595_data *data = sis5595_update_device(dev);
+	return sprintf(buf, "%d\n", data->alarms);
+}
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *da,
+			  char *buf)
+{
+	struct sis5595_data *data = sis5595_update_device(dev);
+	int nr = to_sensor_dev_attr(da)->index;
+	return sprintf(buf, "%u\n", (data->alarms >> nr) & 1);
+}
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 15);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 15);
+
+static ssize_t show_name(struct device *dev, struct device_attribute *attr,
+			 char *buf)
+{
+	struct sis5595_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%s\n", data->name);
+}
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+
+static struct attribute *sis5595_attributes[] = {
+	&sensor_dev_attr_in0_input.dev_attr.attr,
+	&sensor_dev_attr_in0_min.dev_attr.attr,
+	&sensor_dev_attr_in0_max.dev_attr.attr,
+	&sensor_dev_attr_in0_alarm.dev_attr.attr,
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in1_min.dev_attr.attr,
+	&sensor_dev_attr_in1_max.dev_attr.attr,
+	&sensor_dev_attr_in1_alarm.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in2_min.dev_attr.attr,
+	&sensor_dev_attr_in2_max.dev_attr.attr,
+	&sensor_dev_attr_in2_alarm.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in3_min.dev_attr.attr,
+	&sensor_dev_attr_in3_max.dev_attr.attr,
+	&sensor_dev_attr_in3_alarm.dev_attr.attr,
+
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_div.dev_attr.attr,
+	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_div.dev_attr.attr,
+	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
+
+	&dev_attr_alarms.attr,
+	&dev_attr_name.attr,
+	NULL
+};
+
+static const struct attribute_group sis5595_group = {
+	.attrs = sis5595_attributes,
+};
+
+static struct attribute *sis5595_attributes_in4[] = {
+	&sensor_dev_attr_in4_input.dev_attr.attr,
+	&sensor_dev_attr_in4_min.dev_attr.attr,
+	&sensor_dev_attr_in4_max.dev_attr.attr,
+	&sensor_dev_attr_in4_alarm.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group sis5595_group_in4 = {
+	.attrs = sis5595_attributes_in4,
+};
+
+static struct attribute *sis5595_attributes_temp1[] = {
+	&dev_attr_temp1_input.attr,
+	&dev_attr_temp1_max.attr,
+	&dev_attr_temp1_max_hyst.attr,
+	&sensor_dev_attr_temp1_alarm.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group sis5595_group_temp1 = {
+	.attrs = sis5595_attributes_temp1,
+};
+ 
+/* This is called when the module is loaded */
+static int __devinit sis5595_probe(struct platform_device *pdev)
+{
+	int err = 0;
+	int i;
+	struct sis5595_data *data;
+	struct resource *res;
+	char val;
+
+	/* Reserve the ISA region */
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	if (!request_region(res->start, SIS5595_EXTENT,
+			    sis5595_driver.driver.name)) {
+		err = -EBUSY;
+		goto exit;
+	}
+
+	if (!(data = kzalloc(sizeof(struct sis5595_data), GFP_KERNEL))) {
+		err = -ENOMEM;
+		goto exit_release;
+	}
+
+	mutex_init(&data->lock);
+	mutex_init(&data->update_lock);
+	data->addr = res->start;
+	data->name = "sis5595";
+	platform_set_drvdata(pdev, data);
+
+	/* Check revision and pin registers to determine whether 4 or 5 voltages */
+	data->revision = s_bridge->revision;
+	/* 4 voltages, 1 temp */
+	data->maxins = 3;
+	if (data->revision >= REV2MIN) {
+		pci_read_config_byte(s_bridge, SIS5595_PIN_REG, &val);
+		if (!(val & 0x80))
+			/* 5 voltages, no temps */
+			data->maxins = 4;
+	}
+	
+	/* Initialize the SIS5595 chip */
+	sis5595_init_device(data);
+
+	/* A few vars need to be filled upon startup */
+	for (i = 0; i < 2; i++) {
+		data->fan_min[i] = sis5595_read_value(data,
+					SIS5595_REG_FAN_MIN(i));
+	}
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&pdev->dev.kobj, &sis5595_group)))
+		goto exit_free;
+	if (data->maxins == 4) {
+		if ((err = sysfs_create_group(&pdev->dev.kobj,
+					      &sis5595_group_in4)))
+			goto exit_remove_files;
+	} else {
+		if ((err = sysfs_create_group(&pdev->dev.kobj,
+					      &sis5595_group_temp1)))
+			goto exit_remove_files;
+	}
+
+	data->hwmon_dev = hwmon_device_register(&pdev->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove_files;
+	}
+
+	return 0;
+
+exit_remove_files:
+	sysfs_remove_group(&pdev->dev.kobj, &sis5595_group);
+	sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_in4);
+	sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_temp1);
+exit_free:
+	kfree(data);
+exit_release:
+	release_region(res->start, SIS5595_EXTENT);
+exit:
+	return err;
+}
+
+static int __devexit sis5595_remove(struct platform_device *pdev)
+{
+	struct sis5595_data *data = platform_get_drvdata(pdev);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&pdev->dev.kobj, &sis5595_group);
+	sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_in4);
+	sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_temp1);
+
+	release_region(data->addr, SIS5595_EXTENT);
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+
+	return 0;
+}
+
+
+/* ISA access must be locked explicitly. */
+static int sis5595_read_value(struct sis5595_data *data, u8 reg)
+{
+	int res;
+
+	mutex_lock(&data->lock);
+	outb_p(reg, data->addr + SIS5595_ADDR_REG_OFFSET);
+	res = inb_p(data->addr + SIS5595_DATA_REG_OFFSET);
+	mutex_unlock(&data->lock);
+	return res;
+}
+
+static void sis5595_write_value(struct sis5595_data *data, u8 reg, u8 value)
+{
+	mutex_lock(&data->lock);
+	outb_p(reg, data->addr + SIS5595_ADDR_REG_OFFSET);
+	outb_p(value, data->addr + SIS5595_DATA_REG_OFFSET);
+	mutex_unlock(&data->lock);
+}
+
+/* Called when we have found a new SIS5595. */
+static void __devinit sis5595_init_device(struct sis5595_data *data)
+{
+	u8 config = sis5595_read_value(data, SIS5595_REG_CONFIG);
+	if (!(config & 0x01))
+		sis5595_write_value(data, SIS5595_REG_CONFIG,
+				(config & 0xf7) | 0x01);
+}
+
+static struct sis5595_data *sis5595_update_device(struct device *dev)
+{
+	struct sis5595_data *data = dev_get_drvdata(dev);
+	int i;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	    || !data->valid) {
+
+		for (i = 0; i <= data->maxins; i++) {
+			data->in[i] =
+			    sis5595_read_value(data, SIS5595_REG_IN(i));
+			data->in_min[i] =
+			    sis5595_read_value(data,
+					       SIS5595_REG_IN_MIN(i));
+			data->in_max[i] =
+			    sis5595_read_value(data,
+					       SIS5595_REG_IN_MAX(i));
+		}
+		for (i = 0; i < 2; i++) {
+			data->fan[i] =
+			    sis5595_read_value(data, SIS5595_REG_FAN(i));
+			data->fan_min[i] =
+			    sis5595_read_value(data,
+					       SIS5595_REG_FAN_MIN(i));
+		}
+		if (data->maxins == 3) {
+			data->temp =
+			    sis5595_read_value(data, SIS5595_REG_TEMP);
+			data->temp_over =
+			    sis5595_read_value(data, SIS5595_REG_TEMP_OVER);
+			data->temp_hyst =
+			    sis5595_read_value(data, SIS5595_REG_TEMP_HYST);
+		}
+		i = sis5595_read_value(data, SIS5595_REG_FANDIV);
+		data->fan_div[0] = (i >> 4) & 0x03;
+		data->fan_div[1] = i >> 6;
+		data->alarms =
+		    sis5595_read_value(data, SIS5595_REG_ALARM1) |
+		    (sis5595_read_value(data, SIS5595_REG_ALARM2) << 8);
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static struct pci_device_id sis5595_pci_ids[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503) },
+	{ 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, sis5595_pci_ids);
+
+static int blacklist[] __devinitdata = {
+	PCI_DEVICE_ID_SI_540,
+	PCI_DEVICE_ID_SI_550,
+	PCI_DEVICE_ID_SI_630,
+	PCI_DEVICE_ID_SI_645,
+	PCI_DEVICE_ID_SI_730,
+	PCI_DEVICE_ID_SI_735,
+	PCI_DEVICE_ID_SI_5511, /* 5513 chip has the 0008 device but
+				  that ID shows up in other chips so we
+				  use the 5511 ID for recognition */
+	PCI_DEVICE_ID_SI_5597,
+	PCI_DEVICE_ID_SI_5598,
+	0 };
+
+static int __devinit sis5595_device_add(unsigned short address)
+{
+	struct resource res = {
+		.start	= address,
+		.end	= address + SIS5595_EXTENT - 1,
+		.name	= "sis5595",
+		.flags	= IORESOURCE_IO,
+	};
+	int err;
+
+	pdev = platform_device_alloc("sis5595", address);
+	if (!pdev) {
+		err = -ENOMEM;
+		printk(KERN_ERR "sis5595: Device allocation failed\n");
+		goto exit;
+	}
+
+	err = platform_device_add_resources(pdev, &res, 1);
+	if (err) {
+		printk(KERN_ERR "sis5595: Device resource addition failed "
+		       "(%d)\n", err);
+		goto exit_device_put;
+	}
+
+	err = platform_device_add(pdev);
+	if (err) {
+		printk(KERN_ERR "sis5595: Device addition failed (%d)\n",
+		       err);
+		goto exit_device_put;
+	}
+
+	return 0;
+
+exit_device_put:
+	platform_device_put(pdev);
+exit:
+	return err;
+}
+
+static int __devinit sis5595_pci_probe(struct pci_dev *dev,
+				       const struct pci_device_id *id)
+{
+	u16 address;
+	u8 enable;
+	int *i;
+
+	for (i = blacklist; *i != 0; i++) {
+		struct pci_dev *d;
+		if ((d = pci_get_device(PCI_VENDOR_ID_SI, *i, NULL))) {
+			dev_err(&d->dev, "Looked for SIS5595 but found unsupported device %.4x\n", *i);
+			pci_dev_put(d);
+			return -ENODEV;
+		}
+	}
+	
+	force_addr &= ~(SIS5595_EXTENT - 1);
+	if (force_addr) {
+		dev_warn(&dev->dev, "Forcing ISA address 0x%x\n", force_addr);
+		pci_write_config_word(dev, SIS5595_BASE_REG, force_addr);
+	}
+
+	if (PCIBIOS_SUCCESSFUL !=
+	    pci_read_config_word(dev, SIS5595_BASE_REG, &address)) {
+		dev_err(&dev->dev, "Failed to read ISA address\n");
+		return -ENODEV;
+	}
+	
+	address &= ~(SIS5595_EXTENT - 1);
+	if (!address) {
+		dev_err(&dev->dev, "Base address not set - upgrade BIOS or use force_addr=0xaddr\n");
+		return -ENODEV;
+	}
+	if (force_addr && address != force_addr) {
+		/* doesn't work for some chips? */
+		dev_err(&dev->dev, "Failed to force ISA address\n");
+		return -ENODEV;
+	}
+
+	if (PCIBIOS_SUCCESSFUL !=
+	    pci_read_config_byte(dev, SIS5595_ENABLE_REG, &enable)) {
+		dev_err(&dev->dev, "Failed to read enable register\n");
+		return -ENODEV;
+	}
+	if (!(enable & 0x80)) {
+		if ((PCIBIOS_SUCCESSFUL !=
+		     pci_write_config_byte(dev, SIS5595_ENABLE_REG,
+					   enable | 0x80))
+		 || (PCIBIOS_SUCCESSFUL !=
+		     pci_read_config_byte(dev, SIS5595_ENABLE_REG, &enable))
+		 || (!(enable & 0x80))) {
+			/* doesn't work for some chips! */
+			dev_err(&dev->dev, "Failed to enable HWM device\n");
+			return -ENODEV;
+		}
+	}
+
+	if (platform_driver_register(&sis5595_driver)) {
+		dev_dbg(&dev->dev, "Failed to register sis5595 driver\n");
+		goto exit;
+	}
+
+	s_bridge = pci_dev_get(dev);
+	/* Sets global pdev as a side effect */
+	if (sis5595_device_add(address))
+		goto exit_unregister;
+
+	/* Always return failure here.  This is to allow other drivers to bind
+	 * to this pci device.  We don't really want to have control over the
+	 * pci device, we only wanted to read as few register values from it.
+	 */
+	return -ENODEV;
+
+exit_unregister:
+	pci_dev_put(dev);
+	platform_driver_unregister(&sis5595_driver);
+exit:
+	return -ENODEV;
+}
+
+static struct pci_driver sis5595_pci_driver = {
+	.name            = "sis5595",
+	.id_table        = sis5595_pci_ids,
+	.probe           = sis5595_pci_probe,
+};
+
+static int __init sm_sis5595_init(void)
+{
+	return pci_register_driver(&sis5595_pci_driver);
+}
+
+static void __exit sm_sis5595_exit(void)
+{
+	pci_unregister_driver(&sis5595_pci_driver);
+	if (s_bridge != NULL) {
+		platform_device_unregister(pdev);
+		platform_driver_unregister(&sis5595_driver);
+		pci_dev_put(s_bridge);
+		s_bridge = NULL;
+	}
+}
+
+MODULE_AUTHOR("Aurelien Jarno <aurelien@aurel32.net>");
+MODULE_DESCRIPTION("SiS 5595 Sensor device");
+MODULE_LICENSE("GPL");
+
+module_init(sm_sis5595_init);
+module_exit(sm_sis5595_exit);
diff --git a/drivers/hwmon/smsc47b397.c b/drivers/hwmon/smsc47b397.c
new file mode 100644
index 0000000..eb03544
--- /dev/null
+++ b/drivers/hwmon/smsc47b397.c
@@ -0,0 +1,409 @@
+/*
+    smsc47b397.c - Part of lm_sensors, Linux kernel modules
+			for hardware monitoring
+
+    Supports the SMSC LPC47B397-NC Super-I/O chip.
+
+    Author/Maintainer: Mark M. Hoffman <mhoffman@lightlink.com>
+	Copyright (C) 2004 Utilitek Systems, Inc.
+
+    derived in part from smsc47m1.c:
+	Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
+	Copyright (C) 2004 Jean Delvare <khali@linux-fr.org>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/mutex.h>
+#include <asm/io.h>
+
+static unsigned short force_id;
+module_param(force_id, ushort, 0);
+MODULE_PARM_DESC(force_id, "Override the detected device ID");
+
+static struct platform_device *pdev;
+
+#define DRVNAME "smsc47b397"
+
+/* Super-I/0 registers and commands */
+
+#define	REG	0x2e	/* The register to read/write */
+#define	VAL	0x2f	/* The value to read/write */
+
+static inline void superio_outb(int reg, int val)
+{
+	outb(reg, REG);
+	outb(val, VAL);
+}
+
+static inline int superio_inb(int reg)
+{
+	outb(reg, REG);
+	return inb(VAL);
+}
+
+/* select superio logical device */
+static inline void superio_select(int ld)
+{
+	superio_outb(0x07, ld);
+}
+
+static inline void superio_enter(void)
+{
+	outb(0x55, REG);
+}
+
+static inline void superio_exit(void)
+{
+	outb(0xAA, REG);
+}
+
+#define SUPERIO_REG_DEVID	0x20
+#define SUPERIO_REG_DEVREV	0x21
+#define SUPERIO_REG_BASE_MSB	0x60
+#define SUPERIO_REG_BASE_LSB	0x61
+#define SUPERIO_REG_LD8		0x08
+
+#define SMSC_EXTENT		0x02
+
+/* 0 <= nr <= 3 */
+static u8 smsc47b397_reg_temp[] = {0x25, 0x26, 0x27, 0x80};
+#define SMSC47B397_REG_TEMP(nr)	(smsc47b397_reg_temp[(nr)])
+
+/* 0 <= nr <= 3 */
+#define SMSC47B397_REG_FAN_LSB(nr) (0x28 + 2 * (nr))
+#define SMSC47B397_REG_FAN_MSB(nr) (0x29 + 2 * (nr))
+
+struct smsc47b397_data {
+	unsigned short addr;
+	const char *name;
+	struct device *hwmon_dev;
+	struct mutex lock;
+
+	struct mutex update_lock;
+	unsigned long last_updated; /* in jiffies */
+	int valid;
+
+	/* register values */
+	u16 fan[4];
+	u8 temp[4];
+};
+
+static int smsc47b397_read_value(struct smsc47b397_data* data, u8 reg)
+{
+	int res;
+
+	mutex_lock(&data->lock);
+	outb(reg, data->addr);
+	res = inb_p(data->addr + 1);
+	mutex_unlock(&data->lock);
+	return res;
+}
+
+static struct smsc47b397_data *smsc47b397_update_device(struct device *dev)
+{
+	struct smsc47b397_data *data = dev_get_drvdata(dev);
+	int i;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
+		dev_dbg(dev, "starting device update...\n");
+
+		/* 4 temperature inputs, 4 fan inputs */
+		for (i = 0; i < 4; i++) {
+			data->temp[i] = smsc47b397_read_value(data,
+					SMSC47B397_REG_TEMP(i));
+
+			/* must read LSB first */
+			data->fan[i]  = smsc47b397_read_value(data,
+					SMSC47B397_REG_FAN_LSB(i));
+			data->fan[i] |= smsc47b397_read_value(data,
+					SMSC47B397_REG_FAN_MSB(i)) << 8;
+		}
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+
+		dev_dbg(dev, "... device update complete\n");
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+/* TEMP: 0.001C/bit (-128C to +127C)
+   REG: 1C/bit, two's complement */
+static int temp_from_reg(u8 reg)
+{
+	return (s8)reg * 1000;
+}
+
+static ssize_t show_temp(struct device *dev, struct device_attribute
+			 *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct smsc47b397_data *data = smsc47b397_update_device(dev);
+	return sprintf(buf, "%d\n", temp_from_reg(data->temp[attr->index]));
+}
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 3);
+
+/* FAN: 1 RPM/bit
+   REG: count of 90kHz pulses / revolution */
+static int fan_from_reg(u16 reg)
+{
+	if (reg == 0 || reg == 0xffff)
+		return 0;
+	return 90000 * 60 / reg;
+}
+
+static ssize_t show_fan(struct device *dev, struct device_attribute
+			*devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct smsc47b397_data *data = smsc47b397_update_device(dev);
+	return sprintf(buf, "%d\n", fan_from_reg(data->fan[attr->index]));
+}
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3);
+
+static ssize_t show_name(struct device *dev, struct device_attribute
+			 *devattr, char *buf)
+{
+	struct smsc47b397_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%s\n", data->name);
+}
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+
+static struct attribute *smsc47b397_attributes[] = {
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp3_input.dev_attr.attr,
+	&sensor_dev_attr_temp4_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan3_input.dev_attr.attr,
+	&sensor_dev_attr_fan4_input.dev_attr.attr,
+
+	&dev_attr_name.attr,
+	NULL
+};
+
+static const struct attribute_group smsc47b397_group = {
+	.attrs = smsc47b397_attributes,
+};
+
+static int __devexit smsc47b397_remove(struct platform_device *pdev)
+{
+	struct smsc47b397_data *data = platform_get_drvdata(pdev);
+	struct resource *res;
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&pdev->dev.kobj, &smsc47b397_group);
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	release_region(res->start, SMSC_EXTENT);
+	kfree(data);
+
+	return 0;
+}
+
+static int smsc47b397_probe(struct platform_device *pdev);
+
+static struct platform_driver smsc47b397_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= DRVNAME,
+	},
+	.probe		= smsc47b397_probe,
+	.remove		= __devexit_p(smsc47b397_remove),
+};
+
+static int __devinit smsc47b397_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct smsc47b397_data *data;
+	struct resource *res;
+	int err = 0;
+
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	if (!request_region(res->start, SMSC_EXTENT,
+			    smsc47b397_driver.driver.name)) {
+		dev_err(dev, "Region 0x%lx-0x%lx already in use!\n",
+			(unsigned long)res->start,
+			(unsigned long)res->start + SMSC_EXTENT - 1);
+		return -EBUSY;
+	}
+
+	if (!(data = kzalloc(sizeof(struct smsc47b397_data), GFP_KERNEL))) {
+		err = -ENOMEM;
+		goto error_release;
+	}
+
+	data->addr = res->start;
+	data->name = "smsc47b397";
+	mutex_init(&data->lock);
+	mutex_init(&data->update_lock);
+	platform_set_drvdata(pdev, data);
+
+	if ((err = sysfs_create_group(&dev->kobj, &smsc47b397_group)))
+		goto error_free;
+
+	data->hwmon_dev = hwmon_device_register(dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto error_remove;
+	}
+
+	return 0;
+
+error_remove:
+	sysfs_remove_group(&dev->kobj, &smsc47b397_group);
+error_free:
+	kfree(data);
+error_release:
+	release_region(res->start, SMSC_EXTENT);
+	return err;
+}
+
+static int __init smsc47b397_device_add(unsigned short address)
+{
+	struct resource res = {
+		.start	= address,
+		.end	= address + SMSC_EXTENT - 1,
+		.name	= DRVNAME,
+		.flags	= IORESOURCE_IO,
+	};
+	int err;
+
+	pdev = platform_device_alloc(DRVNAME, address);
+	if (!pdev) {
+		err = -ENOMEM;
+		printk(KERN_ERR DRVNAME ": Device allocation failed\n");
+		goto exit;
+	}
+
+	err = platform_device_add_resources(pdev, &res, 1);
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Device resource addition failed "
+		       "(%d)\n", err);
+		goto exit_device_put;
+	}
+
+	err = platform_device_add(pdev);
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",
+		       err);
+		goto exit_device_put;
+	}
+
+	return 0;
+
+exit_device_put:
+	platform_device_put(pdev);
+exit:
+	return err;
+}
+
+static int __init smsc47b397_find(unsigned short *addr)
+{
+	u8 id, rev;
+	char *name;
+
+	superio_enter();
+	id = force_id ? force_id : superio_inb(SUPERIO_REG_DEVID);
+
+	switch(id) {
+	case 0x81:
+		name = "SCH5307-NS";
+		break;
+	case 0x6f:
+		name = "LPC47B397-NC";
+		break;
+	case 0x85:
+	case 0x8c:
+		name = "SCH5317";
+		break;
+	default:
+		superio_exit();
+		return -ENODEV;
+	}
+
+	rev = superio_inb(SUPERIO_REG_DEVREV);
+
+	superio_select(SUPERIO_REG_LD8);
+	*addr = (superio_inb(SUPERIO_REG_BASE_MSB) << 8)
+		 |  superio_inb(SUPERIO_REG_BASE_LSB);
+
+	printk(KERN_INFO DRVNAME ": found SMSC %s "
+		"(base address 0x%04x, revision %u)\n",
+		name, *addr, rev);
+
+	superio_exit();
+	return 0;
+}
+
+static int __init smsc47b397_init(void)
+{
+	unsigned short address;
+	int ret;
+
+	if ((ret = smsc47b397_find(&address)))
+		return ret;
+
+	ret = platform_driver_register(&smsc47b397_driver);
+	if (ret)
+		goto exit;
+
+	/* Sets global pdev as a side effect */
+	ret = smsc47b397_device_add(address);
+	if (ret)
+		goto exit_driver;
+
+	return 0;
+
+exit_driver:
+	platform_driver_unregister(&smsc47b397_driver);
+exit:
+	return ret;
+}
+
+static void __exit smsc47b397_exit(void)
+{
+	platform_device_unregister(pdev);
+	platform_driver_unregister(&smsc47b397_driver);
+}
+
+MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>");
+MODULE_DESCRIPTION("SMSC LPC47B397 driver");
+MODULE_LICENSE("GPL");
+
+module_init(smsc47b397_init);
+module_exit(smsc47b397_exit);
diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c
new file mode 100644
index 0000000..d1b4985
--- /dev/null
+++ b/drivers/hwmon/smsc47m1.c
@@ -0,0 +1,781 @@
+/*
+    smsc47m1.c - Part of lm_sensors, Linux kernel modules
+                 for hardware monitoring
+
+    Supports the SMSC LPC47B27x, LPC47M10x, LPC47M112, LPC47M13x,
+    LPC47M14x, LPC47M15x, LPC47M192, LPC47M292 and LPC47M997
+    Super-I/O chips.
+
+    Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
+    Copyright (C) 2004-2007 Jean Delvare <khali@linux-fr.org>
+    Ported to Linux 2.6 by Gabriele Gorla <gorlik@yahoo.com>
+                        and Jean Delvare
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+#include <asm/io.h>
+
+static unsigned short force_id;
+module_param(force_id, ushort, 0);
+MODULE_PARM_DESC(force_id, "Override the detected device ID");
+
+static struct platform_device *pdev;
+
+#define DRVNAME "smsc47m1"
+enum chips { smsc47m1, smsc47m2 };
+
+/* Super-I/0 registers and commands */
+
+#define	REG	0x2e	/* The register to read/write */
+#define	VAL	0x2f	/* The value to read/write */
+
+static inline void
+superio_outb(int reg, int val)
+{
+	outb(reg, REG);
+	outb(val, VAL);
+}
+
+static inline int
+superio_inb(int reg)
+{
+	outb(reg, REG);
+	return inb(VAL);
+}
+
+/* logical device for fans is 0x0A */
+#define superio_select() superio_outb(0x07, 0x0A)
+
+static inline void
+superio_enter(void)
+{
+	outb(0x55, REG);
+}
+
+static inline void
+superio_exit(void)
+{
+	outb(0xAA, REG);
+}
+
+#define SUPERIO_REG_ACT		0x30
+#define SUPERIO_REG_BASE	0x60
+#define SUPERIO_REG_DEVID	0x20
+
+/* Logical device registers */
+
+#define SMSC_EXTENT		0x80
+
+/* nr is 0 or 1 in the macros below */
+#define SMSC47M1_REG_ALARM		0x04
+#define SMSC47M1_REG_TPIN(nr)		(0x34 - (nr))
+#define SMSC47M1_REG_PPIN(nr)		(0x36 - (nr))
+#define SMSC47M1_REG_FANDIV		0x58
+
+static const u8 SMSC47M1_REG_FAN[3]		= { 0x59, 0x5a, 0x6b };
+static const u8 SMSC47M1_REG_FAN_PRELOAD[3]	= { 0x5b, 0x5c, 0x6c };
+static const u8 SMSC47M1_REG_PWM[3]		= { 0x56, 0x57, 0x69 };
+
+#define SMSC47M2_REG_ALARM6		0x09
+#define SMSC47M2_REG_TPIN1		0x38
+#define SMSC47M2_REG_TPIN2		0x37
+#define SMSC47M2_REG_TPIN3		0x2d
+#define SMSC47M2_REG_PPIN3		0x2c
+#define SMSC47M2_REG_FANDIV3		0x6a
+
+#define MIN_FROM_REG(reg,div)		((reg)>=192 ? 0 : \
+					 983040/((192-(reg))*(div)))
+#define FAN_FROM_REG(reg,div,preload)	((reg)<=(preload) || (reg)==255 ? 0 : \
+					 983040/(((reg)-(preload))*(div)))
+#define DIV_FROM_REG(reg)		(1 << (reg))
+#define PWM_FROM_REG(reg)		(((reg) & 0x7E) << 1)
+#define PWM_EN_FROM_REG(reg)		((~(reg)) & 0x01)
+#define PWM_TO_REG(reg)			(((reg) >> 1) & 0x7E)
+
+struct smsc47m1_data {
+	unsigned short addr;
+	const char *name;
+	enum chips type;
+	struct device *hwmon_dev;
+
+	struct mutex update_lock;
+	unsigned long last_updated;	/* In jiffies */
+
+	u8 fan[3];		/* Register value */
+	u8 fan_preload[3];	/* Register value */
+	u8 fan_div[3];		/* Register encoding, shifted right */
+	u8 alarms;		/* Register encoding */
+	u8 pwm[3];		/* Register value (bit 0 is disable) */
+};
+
+struct smsc47m1_sio_data {
+	enum chips type;
+};
+
+
+static int smsc47m1_probe(struct platform_device *pdev);
+static int __devexit smsc47m1_remove(struct platform_device *pdev);
+static struct smsc47m1_data *smsc47m1_update_device(struct device *dev,
+		int init);
+
+static inline int smsc47m1_read_value(struct smsc47m1_data *data, u8 reg)
+{
+	return inb_p(data->addr + reg);
+}
+
+static inline void smsc47m1_write_value(struct smsc47m1_data *data, u8 reg,
+		u8 value)
+{
+	outb_p(value, data->addr + reg);
+}
+
+static struct platform_driver smsc47m1_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= DRVNAME,
+	},
+	.probe		= smsc47m1_probe,
+	.remove		= __devexit_p(smsc47m1_remove),
+};
+
+static ssize_t get_fan(struct device *dev, struct device_attribute
+		       *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
+	int nr = attr->index;
+	/* This chip (stupidly) stops monitoring fan speed if PWM is
+	   enabled and duty cycle is 0%. This is fine if the monitoring
+	   and control concern the same fan, but troublesome if they are
+	   not (which could as well happen). */
+	int rpm = (data->pwm[nr] & 0x7F) == 0x00 ? 0 :
+		  FAN_FROM_REG(data->fan[nr],
+			       DIV_FROM_REG(data->fan_div[nr]),
+			       data->fan_preload[nr]);
+	return sprintf(buf, "%d\n", rpm);
+}
+
+static ssize_t get_fan_min(struct device *dev, struct device_attribute
+			   *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
+	int nr = attr->index;
+	int rpm = MIN_FROM_REG(data->fan_preload[nr],
+			       DIV_FROM_REG(data->fan_div[nr]));
+	return sprintf(buf, "%d\n", rpm);
+}
+
+static ssize_t get_fan_div(struct device *dev, struct device_attribute
+			   *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
+	return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[attr->index]));
+}
+
+static ssize_t get_fan_alarm(struct device *dev, struct device_attribute
+			     *devattr, char *buf)
+{
+	int bitnr = to_sensor_dev_attr(devattr)->index;
+	struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
+	return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
+}
+
+static ssize_t get_pwm(struct device *dev, struct device_attribute
+		       *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
+	return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[attr->index]));
+}
+
+static ssize_t get_pwm_en(struct device *dev, struct device_attribute
+			  *devattr, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
+	return sprintf(buf, "%d\n", PWM_EN_FROM_REG(data->pwm[attr->index]));
+}
+
+static ssize_t get_alarms(struct device *dev, struct device_attribute
+			  *devattr, char *buf)
+{
+	struct smsc47m1_data *data = smsc47m1_update_device(dev, 0);
+	return sprintf(buf, "%d\n", data->alarms);
+}
+
+static ssize_t set_fan_min(struct device *dev, struct device_attribute
+			   *devattr, const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct smsc47m1_data *data = dev_get_drvdata(dev);
+	int nr = attr->index;
+	long rpmdiv, val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	rpmdiv = val * DIV_FROM_REG(data->fan_div[nr]);
+
+	if (983040 > 192 * rpmdiv || 2 * rpmdiv > 983040) {
+		mutex_unlock(&data->update_lock);
+		return -EINVAL;
+	}
+
+	data->fan_preload[nr] = 192 - ((983040 + rpmdiv / 2) / rpmdiv);
+	smsc47m1_write_value(data, SMSC47M1_REG_FAN_PRELOAD[nr],
+			     data->fan_preload[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/* Note: we save and restore the fan minimum here, because its value is
+   determined in part by the fan clock divider.  This follows the principle
+   of least surprise; the user doesn't expect the fan minimum to change just
+   because the divider changed. */
+static ssize_t set_fan_div(struct device *dev, struct device_attribute
+			   *devattr, const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct smsc47m1_data *data = dev_get_drvdata(dev);
+	int nr = attr->index;
+	long new_div = simple_strtol(buf, NULL, 10), tmp;
+	u8 old_div = DIV_FROM_REG(data->fan_div[nr]);
+
+	if (new_div == old_div) /* No change */
+		return count;
+
+	mutex_lock(&data->update_lock);
+	switch (new_div) {
+	case 1: data->fan_div[nr] = 0; break;
+	case 2: data->fan_div[nr] = 1; break;
+	case 4: data->fan_div[nr] = 2; break;
+	case 8: data->fan_div[nr] = 3; break;
+	default:
+		mutex_unlock(&data->update_lock);
+		return -EINVAL;
+	}
+
+	switch (nr) {
+	case 0:
+	case 1:
+		tmp = smsc47m1_read_value(data, SMSC47M1_REG_FANDIV)
+		      & ~(0x03 << (4 + 2 * nr));
+		tmp |= data->fan_div[nr] << (4 + 2 * nr);
+		smsc47m1_write_value(data, SMSC47M1_REG_FANDIV, tmp);
+		break;
+	case 2:
+		tmp = smsc47m1_read_value(data, SMSC47M2_REG_FANDIV3) & 0xCF;
+		tmp |= data->fan_div[2] << 4;
+		smsc47m1_write_value(data, SMSC47M2_REG_FANDIV3, tmp);
+		break;
+	}
+
+	/* Preserve fan min */
+	tmp = 192 - (old_div * (192 - data->fan_preload[nr])
+		     + new_div / 2) / new_div;
+	data->fan_preload[nr] = SENSORS_LIMIT(tmp, 0, 191);
+	smsc47m1_write_value(data, SMSC47M1_REG_FAN_PRELOAD[nr],
+			     data->fan_preload[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t set_pwm(struct device *dev, struct device_attribute
+		       *devattr, const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct smsc47m1_data *data = dev_get_drvdata(dev);
+	int nr = attr->index;
+	long val = simple_strtol(buf, NULL, 10);
+
+	if (val < 0 || val > 255)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	data->pwm[nr] &= 0x81; /* Preserve additional bits */
+	data->pwm[nr] |= PWM_TO_REG(val);
+	smsc47m1_write_value(data, SMSC47M1_REG_PWM[nr],
+			     data->pwm[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t set_pwm_en(struct device *dev, struct device_attribute
+			  *devattr, const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct smsc47m1_data *data = dev_get_drvdata(dev);
+	int nr = attr->index;
+	long val = simple_strtol(buf, NULL, 10);
+	
+	if (val != 0 && val != 1)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	data->pwm[nr] &= 0xFE; /* preserve the other bits */
+	data->pwm[nr] |= !val;
+	smsc47m1_write_value(data, SMSC47M1_REG_PWM[nr],
+			     data->pwm[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+#define fan_present(offset)						\
+static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, get_fan,	\
+		NULL, offset - 1);					\
+static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,		\
+		get_fan_min, set_fan_min, offset - 1);			\
+static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR,		\
+		get_fan_div, set_fan_div, offset - 1);			\
+static SENSOR_DEVICE_ATTR(fan##offset##_alarm, S_IRUGO, get_fan_alarm,	\
+		NULL, offset - 1);					\
+static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR,		\
+		get_pwm, set_pwm, offset - 1);				\
+static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR,	\
+		get_pwm_en, set_pwm_en, offset - 1)
+
+fan_present(1);
+fan_present(2);
+fan_present(3);
+
+static DEVICE_ATTR(alarms, S_IRUGO, get_alarms, NULL);
+
+static ssize_t show_name(struct device *dev, struct device_attribute
+			 *devattr, char *buf)
+{
+	struct smsc47m1_data *data = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%s\n", data->name);
+}
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+
+/* Almost all sysfs files may or may not be created depending on the chip
+   setup so we create them individually. It is still convenient to define a
+   group to remove them all at once. */
+static struct attribute *smsc47m1_attributes[] = {
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_div.dev_attr.attr,
+	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_div.dev_attr.attr,
+	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan3_input.dev_attr.attr,
+	&sensor_dev_attr_fan3_min.dev_attr.attr,
+	&sensor_dev_attr_fan3_div.dev_attr.attr,
+	&sensor_dev_attr_fan3_alarm.dev_attr.attr,
+
+	&sensor_dev_attr_pwm1.dev_attr.attr,
+	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm2.dev_attr.attr,
+	&sensor_dev_attr_pwm2_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm3.dev_attr.attr,
+	&sensor_dev_attr_pwm3_enable.dev_attr.attr,
+
+	&dev_attr_alarms.attr,
+	&dev_attr_name.attr,
+	NULL
+};
+
+static const struct attribute_group smsc47m1_group = {
+	.attrs = smsc47m1_attributes,
+};
+
+static int __init smsc47m1_find(unsigned short *addr,
+				struct smsc47m1_sio_data *sio_data)
+{
+	u8 val;
+
+	superio_enter();
+	val = force_id ? force_id : superio_inb(SUPERIO_REG_DEVID);
+
+	/*
+	 * SMSC LPC47M10x/LPC47M112/LPC47M13x (device id 0x59), LPC47M14x
+	 * (device id 0x5F) and LPC47B27x (device id 0x51) have fan control.
+	 * The LPC47M15x and LPC47M192 chips "with hardware monitoring block"
+	 * can do much more besides (device id 0x60).
+	 * The LPC47M997 is undocumented, but seems to be compatible with
+	 * the LPC47M192, and has the same device id.
+	 * The LPC47M292 (device id 0x6B) is somewhat compatible, but it
+	 * supports a 3rd fan, and the pin configuration registers are
+	 * unfortunately different.
+	 */
+	switch (val) {
+	case 0x51:
+		pr_info(DRVNAME ": Found SMSC LPC47B27x\n");
+		sio_data->type = smsc47m1;
+		break;
+	case 0x59:
+		pr_info(DRVNAME ": Found SMSC LPC47M10x/LPC47M112/LPC47M13x\n");
+		sio_data->type = smsc47m1;
+		break;
+	case 0x5F:
+		pr_info(DRVNAME ": Found SMSC LPC47M14x\n");
+		sio_data->type = smsc47m1;
+		break;
+	case 0x60:
+		pr_info(DRVNAME ": Found SMSC LPC47M15x/LPC47M192/LPC47M997\n");
+		sio_data->type = smsc47m1;
+		break;
+	case 0x6B:
+		pr_info(DRVNAME ": Found SMSC LPC47M292\n");
+		sio_data->type = smsc47m2;
+		break;
+	default:
+		superio_exit();
+		return -ENODEV;
+	}
+
+	superio_select();
+	*addr = (superio_inb(SUPERIO_REG_BASE) << 8)
+	      |  superio_inb(SUPERIO_REG_BASE + 1);
+	val = superio_inb(SUPERIO_REG_ACT);
+	if (*addr == 0 || (val & 0x01) == 0) {
+		pr_info(DRVNAME ": Device is disabled, will not use\n");
+		superio_exit();
+		return -ENODEV;
+	}
+
+	superio_exit();
+	return 0;
+}
+
+static int __devinit smsc47m1_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct smsc47m1_sio_data *sio_data = dev->platform_data;
+	struct smsc47m1_data *data;
+	struct resource *res;
+	int err = 0;
+	int fan1, fan2, fan3, pwm1, pwm2, pwm3;
+
+	static const char *names[] = {
+		"smsc47m1",
+		"smsc47m2",
+	};
+
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	if (!request_region(res->start, SMSC_EXTENT, DRVNAME)) {
+		dev_err(dev, "Region 0x%lx-0x%lx already in use!\n",
+			(unsigned long)res->start,
+			(unsigned long)res->end);
+		return -EBUSY;
+	}
+
+	if (!(data = kzalloc(sizeof(struct smsc47m1_data), GFP_KERNEL))) {
+		err = -ENOMEM;
+		goto error_release;
+	}
+
+	data->addr = res->start;
+	data->type = sio_data->type;
+	data->name = names[sio_data->type];
+	mutex_init(&data->update_lock);
+	platform_set_drvdata(pdev, data);
+
+	/* If no function is properly configured, there's no point in
+	   actually registering the chip. */
+	pwm1 = (smsc47m1_read_value(data, SMSC47M1_REG_PPIN(0)) & 0x05)
+	       == 0x04;
+	pwm2 = (smsc47m1_read_value(data, SMSC47M1_REG_PPIN(1)) & 0x05)
+	       == 0x04;
+	if (data->type == smsc47m2) {
+		fan1 = (smsc47m1_read_value(data, SMSC47M2_REG_TPIN1)
+			& 0x0d) == 0x09;
+		fan2 = (smsc47m1_read_value(data, SMSC47M2_REG_TPIN2)
+			& 0x0d) == 0x09;
+		fan3 = (smsc47m1_read_value(data, SMSC47M2_REG_TPIN3)
+			& 0x0d) == 0x0d;
+		pwm3 = (smsc47m1_read_value(data, SMSC47M2_REG_PPIN3)
+			& 0x0d) == 0x08;
+	} else {
+		fan1 = (smsc47m1_read_value(data, SMSC47M1_REG_TPIN(0))
+			& 0x05) == 0x05;
+		fan2 = (smsc47m1_read_value(data, SMSC47M1_REG_TPIN(1))
+			& 0x05) == 0x05;
+		fan3 = 0;
+		pwm3 = 0;
+	}
+	if (!(fan1 || fan2 || fan3 || pwm1 || pwm2 || pwm3)) {
+		dev_warn(dev, "Device not configured, will not use\n");
+		err = -ENODEV;
+		goto error_free;
+	}
+
+	/* Some values (fan min, clock dividers, pwm registers) may be
+	   needed before any update is triggered, so we better read them
+	   at least once here. We don't usually do it that way, but in
+	   this particular case, manually reading 5 registers out of 8
+	   doesn't make much sense and we're better using the existing
+	   function. */
+	smsc47m1_update_device(dev, 1);
+
+	/* Register sysfs hooks */
+	if (fan1) {
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_fan1_input.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan1_min.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan1_div.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan1_alarm.dev_attr)))
+			goto error_remove_files;
+	} else
+		dev_dbg(dev, "Fan 1 not enabled by hardware, skipping\n");
+
+	if (fan2) {
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_fan2_input.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan2_min.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan2_div.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan2_alarm.dev_attr)))
+			goto error_remove_files;
+	} else
+		dev_dbg(dev, "Fan 2 not enabled by hardware, skipping\n");
+
+	if (fan3) {
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_fan3_input.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan3_min.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan3_div.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan3_alarm.dev_attr)))
+			goto error_remove_files;
+	} else if (data->type == smsc47m2)
+		dev_dbg(dev, "Fan 3 not enabled by hardware, skipping\n");
+
+	if (pwm1) {
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_pwm1.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_pwm1_enable.dev_attr)))
+			goto error_remove_files;
+	} else
+		dev_dbg(dev, "PWM 1 not enabled by hardware, skipping\n");
+
+	if (pwm2) {
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_pwm2.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_pwm2_enable.dev_attr)))
+			goto error_remove_files;
+	} else
+		dev_dbg(dev, "PWM 2 not enabled by hardware, skipping\n");
+
+	if (pwm3) {
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_pwm3.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_pwm3_enable.dev_attr)))
+			goto error_remove_files;
+	} else if (data->type == smsc47m2)
+		dev_dbg(dev, "PWM 3 not enabled by hardware, skipping\n");
+
+	if ((err = device_create_file(dev, &dev_attr_alarms)))
+		goto error_remove_files;
+	if ((err = device_create_file(dev, &dev_attr_name)))
+		goto error_remove_files;
+
+	data->hwmon_dev = hwmon_device_register(dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto error_remove_files;
+	}
+
+	return 0;
+
+error_remove_files:
+	sysfs_remove_group(&dev->kobj, &smsc47m1_group);
+error_free:
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+error_release:
+	release_region(res->start, SMSC_EXTENT);
+	return err;
+}
+
+static int __devexit smsc47m1_remove(struct platform_device *pdev)
+{
+	struct smsc47m1_data *data = platform_get_drvdata(pdev);
+	struct resource *res;
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&pdev->dev.kobj, &smsc47m1_group);
+
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	release_region(res->start, SMSC_EXTENT);
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+
+	return 0;
+}
+
+static struct smsc47m1_data *smsc47m1_update_device(struct device *dev,
+		int init)
+{
+	struct smsc47m1_data *data = dev_get_drvdata(dev);
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2) || init) {
+		int i, fan_nr;
+		fan_nr = data->type == smsc47m2 ? 3 : 2;
+
+		for (i = 0; i < fan_nr; i++) {
+			data->fan[i] = smsc47m1_read_value(data,
+				       SMSC47M1_REG_FAN[i]);
+			data->fan_preload[i] = smsc47m1_read_value(data,
+					       SMSC47M1_REG_FAN_PRELOAD[i]);
+			data->pwm[i] = smsc47m1_read_value(data,
+				       SMSC47M1_REG_PWM[i]);
+		}
+
+		i = smsc47m1_read_value(data, SMSC47M1_REG_FANDIV);
+		data->fan_div[0] = (i >> 4) & 0x03;
+		data->fan_div[1] = i >> 6;
+
+		data->alarms = smsc47m1_read_value(data,
+			       SMSC47M1_REG_ALARM) >> 6;
+		/* Clear alarms if needed */
+		if (data->alarms)
+			smsc47m1_write_value(data, SMSC47M1_REG_ALARM, 0xC0);
+
+		if (fan_nr >= 3) {
+			data->fan_div[2] = (smsc47m1_read_value(data,
+					    SMSC47M2_REG_FANDIV3) >> 4) & 0x03;
+			data->alarms |= (smsc47m1_read_value(data,
+					 SMSC47M2_REG_ALARM6) & 0x40) >> 4;
+			/* Clear alarm if needed */
+			if (data->alarms & 0x04)
+				smsc47m1_write_value(data,
+						     SMSC47M2_REG_ALARM6,
+						     0x40);
+		}
+
+		data->last_updated = jiffies;
+	}
+
+	mutex_unlock(&data->update_lock);
+	return data;
+}
+
+static int __init smsc47m1_device_add(unsigned short address,
+				      const struct smsc47m1_sio_data *sio_data)
+{
+	struct resource res = {
+		.start	= address,
+		.end	= address + SMSC_EXTENT - 1,
+		.name	= DRVNAME,
+		.flags	= IORESOURCE_IO,
+	};
+	int err;
+
+	pdev = platform_device_alloc(DRVNAME, address);
+	if (!pdev) {
+		err = -ENOMEM;
+		printk(KERN_ERR DRVNAME ": Device allocation failed\n");
+		goto exit;
+	}
+
+	err = platform_device_add_resources(pdev, &res, 1);
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Device resource addition failed "
+		       "(%d)\n", err);
+		goto exit_device_put;
+	}
+
+	err = platform_device_add_data(pdev, sio_data,
+				       sizeof(struct smsc47m1_sio_data));
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Platform data allocation failed\n");
+		goto exit_device_put;
+	}
+
+	err = platform_device_add(pdev);
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",
+		       err);
+		goto exit_device_put;
+	}
+
+	return 0;
+
+exit_device_put:
+	platform_device_put(pdev);
+exit:
+	return err;
+}
+
+static int __init sm_smsc47m1_init(void)
+{
+	int err;
+	unsigned short address;
+	struct smsc47m1_sio_data sio_data;
+
+	if (smsc47m1_find(&address, &sio_data))
+		return -ENODEV;
+
+	err = platform_driver_register(&smsc47m1_driver);
+	if (err)
+		goto exit;
+
+	/* Sets global pdev as a side effect */
+	err = smsc47m1_device_add(address, &sio_data);
+	if (err)
+		goto exit_driver;
+
+	return 0;
+
+exit_driver:
+	platform_driver_unregister(&smsc47m1_driver);
+exit:
+	return err;
+}
+
+static void __exit sm_smsc47m1_exit(void)
+{
+	platform_device_unregister(pdev);
+	platform_driver_unregister(&smsc47m1_driver);
+}
+
+MODULE_AUTHOR("Mark D. Studebaker <mdsxyz123@yahoo.com>");
+MODULE_DESCRIPTION("SMSC LPC47M1xx fan sensors driver");
+MODULE_LICENSE("GPL");
+
+module_init(sm_smsc47m1_init);
+module_exit(sm_smsc47m1_exit);
diff --git a/drivers/hwmon/smsc47m192.c b/drivers/hwmon/smsc47m192.c
new file mode 100644
index 0000000..8bb5cb5
--- /dev/null
+++ b/drivers/hwmon/smsc47m192.c
@@ -0,0 +1,658 @@
+/*
+    smsc47m192.c - Support for hardware monitoring block of
+                   SMSC LPC47M192 and compatible Super I/O chips
+
+    Copyright (C) 2006  Hartmut Rick <linux@rick.claranet.de>
+
+    Derived from lm78.c and other chip drivers.
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon-vid.h>
+#include <linux/err.h>
+#include <linux/sysfs.h>
+#include <linux/mutex.h>
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_1(smsc47m192);
+
+/* SMSC47M192 registers */
+#define SMSC47M192_REG_IN(nr)		((nr)<6 ? (0x20 + (nr)) : \
+					(0x50 + (nr) - 6))
+#define SMSC47M192_REG_IN_MAX(nr)	((nr)<6 ? (0x2b + (nr) * 2) : \
+					(0x54 + (((nr) - 6) * 2)))
+#define SMSC47M192_REG_IN_MIN(nr)	((nr)<6 ? (0x2c + (nr) * 2) : \
+					(0x55 + (((nr) - 6) * 2)))
+static u8 SMSC47M192_REG_TEMP[3] =	{ 0x27, 0x26, 0x52 };
+static u8 SMSC47M192_REG_TEMP_MAX[3] =	{ 0x39, 0x37, 0x58 };
+static u8 SMSC47M192_REG_TEMP_MIN[3] =	{ 0x3A, 0x38, 0x59 };
+#define SMSC47M192_REG_TEMP_OFFSET(nr)	((nr)==2 ? 0x1e : 0x1f)
+#define SMSC47M192_REG_ALARM1		0x41
+#define SMSC47M192_REG_ALARM2		0x42
+#define SMSC47M192_REG_VID		0x47
+#define SMSC47M192_REG_VID4		0x49
+#define SMSC47M192_REG_CONFIG		0x40
+#define SMSC47M192_REG_SFR		0x4f
+#define SMSC47M192_REG_COMPANY_ID	0x3e
+#define SMSC47M192_REG_VERSION		0x3f
+
+/* generalised scaling with integer rounding */
+static inline int SCALE(long val, int mul, int div)
+{
+	if (val < 0)
+		return (val * mul - div / 2) / div;
+	else
+		return (val * mul + div / 2) / div;
+}
+
+/* Conversions */
+
+/* smsc47m192 internally scales voltage measurements */
+static const u16 nom_mv[] = { 2500, 2250, 3300, 5000, 12000, 3300, 1500, 1800 };
+
+static inline unsigned int IN_FROM_REG(u8 reg, int n)
+{
+	return SCALE(reg, nom_mv[n], 192);
+}
+
+static inline u8 IN_TO_REG(unsigned long val, int n)
+{
+	return SENSORS_LIMIT(SCALE(val, 192, nom_mv[n]), 0, 255);
+}
+
+/* TEMP: 0.001 degC units (-128C to +127C)
+   REG: 1C/bit, two's complement */
+static inline s8 TEMP_TO_REG(int val)
+{
+	return SENSORS_LIMIT(SCALE(val, 1, 1000), -128000, 127000);
+}
+
+static inline int TEMP_FROM_REG(s8 val)
+{
+	return val * 1000;
+}
+
+struct smsc47m192_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	char valid;		/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+
+	u8 in[8];		/* Register value */
+	u8 in_max[8];		/* Register value */
+	u8 in_min[8];		/* Register value */
+	s8 temp[3];		/* Register value */
+	s8 temp_max[3];		/* Register value */
+	s8 temp_min[3];		/* Register value */
+	s8 temp_offset[3];	/* Register value */
+	u16 alarms;		/* Register encoding, combined */
+	u8 vid;			/* Register encoding, combined */
+	u8 vrm;
+};
+
+static int smsc47m192_probe(struct i2c_client *client,
+			    const struct i2c_device_id *id);
+static int smsc47m192_detect(struct i2c_client *client, int kind,
+			     struct i2c_board_info *info);
+static int smsc47m192_remove(struct i2c_client *client);
+static struct smsc47m192_data *smsc47m192_update_device(struct device *dev);
+
+static const struct i2c_device_id smsc47m192_id[] = {
+	{ "smsc47m192", smsc47m192 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, smsc47m192_id);
+
+static struct i2c_driver smsc47m192_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "smsc47m192",
+	},
+	.probe		= smsc47m192_probe,
+	.remove		= smsc47m192_remove,
+	.id_table	= smsc47m192_id,
+	.detect		= smsc47m192_detect,
+	.address_data	= &addr_data,
+};
+
+/* Voltages */
+static ssize_t show_in(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct smsc47m192_data *data = smsc47m192_update_device(dev);
+	return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr], nr));
+}
+
+static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct smsc47m192_data *data = smsc47m192_update_device(dev);
+	return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr], nr));
+}
+
+static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct smsc47m192_data *data = smsc47m192_update_device(dev);
+	return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr], nr));
+}
+
+static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct smsc47m192_data *data = i2c_get_clientdata(client);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_min[nr] = IN_TO_REG(val, nr);
+	i2c_smbus_write_byte_data(client, SMSC47M192_REG_IN_MIN(nr),
+							data->in_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct smsc47m192_data *data = i2c_get_clientdata(client);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_max[nr] = IN_TO_REG(val, nr);
+	i2c_smbus_write_byte_data(client, SMSC47M192_REG_IN_MAX(nr),
+							data->in_max[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define show_in_offset(offset)					\
+static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO,		\
+		show_in, NULL, offset);				\
+static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,	\
+		show_in_min, set_in_min, offset);		\
+static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,	\
+		show_in_max, set_in_max, offset);
+
+show_in_offset(0)
+show_in_offset(1)
+show_in_offset(2)
+show_in_offset(3)
+show_in_offset(4)
+show_in_offset(5)
+show_in_offset(6)
+show_in_offset(7)
+
+/* Temperatures */
+static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct smsc47m192_data *data = smsc47m192_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));
+}
+
+static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct smsc47m192_data *data = smsc47m192_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr]));
+}
+
+static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct smsc47m192_data *data = smsc47m192_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr]));
+}
+
+static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct smsc47m192_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_min[nr] = TEMP_TO_REG(val);
+	i2c_smbus_write_byte_data(client, SMSC47M192_REG_TEMP_MIN[nr],
+						data->temp_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct smsc47m192_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_max[nr] = TEMP_TO_REG(val);
+	i2c_smbus_write_byte_data(client, SMSC47M192_REG_TEMP_MAX[nr],
+						data->temp_max[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_temp_offset(struct device *dev, struct device_attribute
+		*attr, char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct smsc47m192_data *data = smsc47m192_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_offset[nr]));
+}
+
+static ssize_t set_temp_offset(struct device *dev, struct device_attribute
+		*attr, const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct smsc47m192_data *data = i2c_get_clientdata(client);
+	u8 sfr = i2c_smbus_read_byte_data(client, SMSC47M192_REG_SFR);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_offset[nr] = TEMP_TO_REG(val);
+	if (nr>1)
+		i2c_smbus_write_byte_data(client,
+			SMSC47M192_REG_TEMP_OFFSET(nr), data->temp_offset[nr]);
+	else if (data->temp_offset[nr] != 0) {
+		/* offset[0] and offset[1] share the same register,
+			SFR bit 4 activates offset[0] */
+		i2c_smbus_write_byte_data(client, SMSC47M192_REG_SFR,
+					(sfr & 0xef) | (nr==0 ? 0x10 : 0));
+		data->temp_offset[1-nr] = 0;
+		i2c_smbus_write_byte_data(client,
+			SMSC47M192_REG_TEMP_OFFSET(nr), data->temp_offset[nr]);
+	} else if ((sfr & 0x10) == (nr==0 ? 0x10 : 0))
+		i2c_smbus_write_byte_data(client,
+					SMSC47M192_REG_TEMP_OFFSET(nr), 0);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define show_temp_index(index)						\
+static SENSOR_DEVICE_ATTR(temp##index##_input, S_IRUGO,			\
+		show_temp, NULL, index-1);				\
+static SENSOR_DEVICE_ATTR(temp##index##_min, S_IRUGO | S_IWUSR,		\
+		show_temp_min, set_temp_min, index-1);			\
+static SENSOR_DEVICE_ATTR(temp##index##_max, S_IRUGO | S_IWUSR,		\
+		show_temp_max, set_temp_max, index-1);			\
+static SENSOR_DEVICE_ATTR(temp##index##_offset, S_IRUGO | S_IWUSR,	\
+		show_temp_offset, set_temp_offset, index-1);
+
+show_temp_index(1)
+show_temp_index(2)
+show_temp_index(3)
+
+/* VID */
+static ssize_t show_vid(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct smsc47m192_data *data = smsc47m192_update_device(dev);
+	return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
+}
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
+
+static ssize_t show_vrm(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct smsc47m192_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%d\n", data->vrm);
+}
+
+static ssize_t set_vrm(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct smsc47m192_data *data = dev_get_drvdata(dev);
+	data->vrm = simple_strtoul(buf, NULL, 10);
+	return count;
+}
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
+
+/* Alarms */
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct smsc47m192_data *data = smsc47m192_update_device(dev);
+	return sprintf(buf, "%u\n", (data->alarms & nr) ? 1 : 0);
+}
+
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 0x0010);
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 0x0020);
+static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 0x0040);
+static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 0x4000);
+static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 0x8000);
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0x0001);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 0x0002);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 0x0004);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 0x0008);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 0x0100);
+static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 0x0200);
+static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 0x0400);
+static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 0x0800);
+
+static struct attribute *smsc47m192_attributes[] = {
+	&sensor_dev_attr_in0_input.dev_attr.attr,
+	&sensor_dev_attr_in0_min.dev_attr.attr,
+	&sensor_dev_attr_in0_max.dev_attr.attr,
+	&sensor_dev_attr_in0_alarm.dev_attr.attr,
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in1_min.dev_attr.attr,
+	&sensor_dev_attr_in1_max.dev_attr.attr,
+	&sensor_dev_attr_in1_alarm.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in2_min.dev_attr.attr,
+	&sensor_dev_attr_in2_max.dev_attr.attr,
+	&sensor_dev_attr_in2_alarm.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in3_min.dev_attr.attr,
+	&sensor_dev_attr_in3_max.dev_attr.attr,
+	&sensor_dev_attr_in3_alarm.dev_attr.attr,
+	&sensor_dev_attr_in5_input.dev_attr.attr,
+	&sensor_dev_attr_in5_min.dev_attr.attr,
+	&sensor_dev_attr_in5_max.dev_attr.attr,
+	&sensor_dev_attr_in5_alarm.dev_attr.attr,
+	&sensor_dev_attr_in6_input.dev_attr.attr,
+	&sensor_dev_attr_in6_min.dev_attr.attr,
+	&sensor_dev_attr_in6_max.dev_attr.attr,
+	&sensor_dev_attr_in6_alarm.dev_attr.attr,
+	&sensor_dev_attr_in7_input.dev_attr.attr,
+	&sensor_dev_attr_in7_min.dev_attr.attr,
+	&sensor_dev_attr_in7_max.dev_attr.attr,
+	&sensor_dev_attr_in7_alarm.dev_attr.attr,
+
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_offset.dev_attr.attr,
+	&sensor_dev_attr_temp1_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_min.dev_attr.attr,
+	&sensor_dev_attr_temp2_offset.dev_attr.attr,
+	&sensor_dev_attr_temp2_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_fault.dev_attr.attr,
+	&sensor_dev_attr_temp3_input.dev_attr.attr,
+	&sensor_dev_attr_temp3_max.dev_attr.attr,
+	&sensor_dev_attr_temp3_min.dev_attr.attr,
+	&sensor_dev_attr_temp3_offset.dev_attr.attr,
+	&sensor_dev_attr_temp3_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp3_fault.dev_attr.attr,
+
+	&dev_attr_cpu0_vid.attr,
+	&dev_attr_vrm.attr,
+	NULL
+};
+
+static const struct attribute_group smsc47m192_group = {
+	.attrs = smsc47m192_attributes,
+};
+
+static struct attribute *smsc47m192_attributes_in4[] = {
+	&sensor_dev_attr_in4_input.dev_attr.attr,
+	&sensor_dev_attr_in4_min.dev_attr.attr,
+	&sensor_dev_attr_in4_max.dev_attr.attr,
+	&sensor_dev_attr_in4_alarm.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group smsc47m192_group_in4 = {
+	.attrs = smsc47m192_attributes_in4,
+};
+
+static void smsc47m192_init_client(struct i2c_client *client)
+{
+	int i;
+	u8 config = i2c_smbus_read_byte_data(client, SMSC47M192_REG_CONFIG);
+	u8 sfr = i2c_smbus_read_byte_data(client, SMSC47M192_REG_SFR);
+
+	/* select cycle mode (pause 1 sec between updates) */
+	i2c_smbus_write_byte_data(client, SMSC47M192_REG_SFR,
+						(sfr & 0xfd) | 0x02);
+	if (!(config & 0x01)) {
+		/* initialize alarm limits */
+		for (i=0; i<8; i++) {
+			i2c_smbus_write_byte_data(client,
+				SMSC47M192_REG_IN_MIN(i), 0);
+			i2c_smbus_write_byte_data(client,
+				SMSC47M192_REG_IN_MAX(i), 0xff);
+		}
+		for (i=0; i<3; i++) {
+			i2c_smbus_write_byte_data(client,
+				SMSC47M192_REG_TEMP_MIN[i], 0x80);
+			i2c_smbus_write_byte_data(client,
+				SMSC47M192_REG_TEMP_MAX[i], 0x7f);
+		}
+
+		/* start monitoring */
+		i2c_smbus_write_byte_data(client, SMSC47M192_REG_CONFIG,
+						(config & 0xf7) | 0x01);
+	}
+}
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int smsc47m192_detect(struct i2c_client *client, int kind,
+			     struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+	int version;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	/* Detection criteria from sensors_detect script */
+	if (kind < 0) {
+		if (i2c_smbus_read_byte_data(client,
+				SMSC47M192_REG_COMPANY_ID) == 0x55
+		 && ((version = i2c_smbus_read_byte_data(client,
+				SMSC47M192_REG_VERSION)) & 0xf0) == 0x20
+		 && (i2c_smbus_read_byte_data(client,
+				SMSC47M192_REG_VID) & 0x70) == 0x00
+		 && (i2c_smbus_read_byte_data(client,
+				SMSC47M192_REG_VID4) & 0xfe) == 0x80) {
+			dev_info(&adapter->dev,
+				 "found SMSC47M192 or compatible, "
+				 "version 2, stepping A%d\n", version & 0x0f);
+		} else {
+			dev_dbg(&adapter->dev,
+				"SMSC47M192 detection failed at 0x%02x\n",
+				client->addr);
+			return -ENODEV;
+		}
+	}
+
+	strlcpy(info->type, "smsc47m192", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int smsc47m192_probe(struct i2c_client *client,
+			    const struct i2c_device_id *id)
+{
+	struct smsc47m192_data *data;
+	int config;
+	int err;
+
+	data = kzalloc(sizeof(struct smsc47m192_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	data->vrm = vid_which_vrm();
+	mutex_init(&data->update_lock);
+
+	/* Initialize the SMSC47M192 chip */
+	smsc47m192_init_client(client);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&client->dev.kobj, &smsc47m192_group)))
+		goto exit_free;
+
+	/* Pin 110 is either in4 (+12V) or VID4 */
+	config = i2c_smbus_read_byte_data(client, SMSC47M192_REG_CONFIG);
+	if (!(config & 0x20)) {
+		if ((err = sysfs_create_group(&client->dev.kobj,
+					      &smsc47m192_group_in4)))
+			goto exit_remove_files;
+	}
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove_files;
+	}
+
+	return 0;
+
+exit_remove_files:
+	sysfs_remove_group(&client->dev.kobj, &smsc47m192_group);
+	sysfs_remove_group(&client->dev.kobj, &smsc47m192_group_in4);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+static int smsc47m192_remove(struct i2c_client *client)
+{
+	struct smsc47m192_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &smsc47m192_group);
+	sysfs_remove_group(&client->dev.kobj, &smsc47m192_group_in4);
+
+	kfree(data);
+
+	return 0;
+}
+
+static struct smsc47m192_data *smsc47m192_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct smsc47m192_data *data = i2c_get_clientdata(client);
+	int i, config;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	 || !data->valid) {
+		u8 sfr = i2c_smbus_read_byte_data(client, SMSC47M192_REG_SFR);
+
+		dev_dbg(&client->dev, "Starting smsc47m192 update\n");
+
+		for (i = 0; i <= 7; i++) {
+			data->in[i] = i2c_smbus_read_byte_data(client,
+						SMSC47M192_REG_IN(i));
+			data->in_min[i] = i2c_smbus_read_byte_data(client,
+						SMSC47M192_REG_IN_MIN(i));
+			data->in_max[i] = i2c_smbus_read_byte_data(client,
+						SMSC47M192_REG_IN_MAX(i));
+		}
+		for (i = 0; i < 3; i++) {
+			data->temp[i] = i2c_smbus_read_byte_data(client,
+						SMSC47M192_REG_TEMP[i]);
+			data->temp_max[i] = i2c_smbus_read_byte_data(client,
+						SMSC47M192_REG_TEMP_MAX[i]);
+			data->temp_min[i] = i2c_smbus_read_byte_data(client,
+						SMSC47M192_REG_TEMP_MIN[i]);
+		}
+		for (i = 1; i < 3; i++)
+			data->temp_offset[i] = i2c_smbus_read_byte_data(client,
+						SMSC47M192_REG_TEMP_OFFSET(i));
+		/* first offset is temp_offset[0] if SFR bit 4 is set,
+					temp_offset[1] otherwise */
+		if (sfr & 0x10) {
+			data->temp_offset[0] = data->temp_offset[1];
+			data->temp_offset[1] = 0;
+		} else
+			data->temp_offset[0] = 0;
+
+		data->vid = i2c_smbus_read_byte_data(client, SMSC47M192_REG_VID)
+			    & 0x0f;
+		config = i2c_smbus_read_byte_data(client,
+						  SMSC47M192_REG_CONFIG);
+		if (config & 0x20)
+			data->vid |= (i2c_smbus_read_byte_data(client,
+					SMSC47M192_REG_VID4) & 0x01) << 4;
+		data->alarms = i2c_smbus_read_byte_data(client,
+						SMSC47M192_REG_ALARM1) |
+			       (i2c_smbus_read_byte_data(client,
+		       				SMSC47M192_REG_ALARM2) << 8);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init smsc47m192_init(void)
+{
+	return i2c_add_driver(&smsc47m192_driver);
+}
+
+static void __exit smsc47m192_exit(void)
+{
+	i2c_del_driver(&smsc47m192_driver);
+}
+
+MODULE_AUTHOR("Hartmut Rick <linux@rick.claranet.de>");
+MODULE_DESCRIPTION("SMSC47M192 driver");
+MODULE_LICENSE("GPL");
+
+module_init(smsc47m192_init);
+module_exit(smsc47m192_exit);
diff --git a/drivers/hwmon/thmc50.c b/drivers/hwmon/thmc50.c
new file mode 100644
index 0000000..7d97431
--- /dev/null
+++ b/drivers/hwmon/thmc50.c
@@ -0,0 +1,493 @@
+/*
+    thmc50.c - Part of lm_sensors, Linux kernel modules for hardware
+             monitoring
+    Copyright (C) 2007 Krzysztof Helt <krzysztof.h1@wp.pl>
+    Based on 2.4 driver by Frodo Looijaard <frodol@dds.nl> and
+    Philip Edelbrock <phil@netroedge.com>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+MODULE_LICENSE("GPL");
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_2(thmc50, adm1022);
+I2C_CLIENT_MODULE_PARM(adm1022_temp3, "List of adapter,address pairs "
+			"to enable 3rd temperature (ADM1022 only)");
+
+/* Many THMC50 constants specified below */
+
+/* The THMC50 registers */
+#define THMC50_REG_CONF				0x40
+#define THMC50_REG_COMPANY_ID			0x3E
+#define THMC50_REG_DIE_CODE			0x3F
+#define THMC50_REG_ANALOG_OUT			0x19
+/*
+ * The mirror status register cannot be used as
+ * reading it does not clear alarms.
+ */
+#define THMC50_REG_INTR				0x41
+
+static const u8 THMC50_REG_TEMP[] = { 0x27, 0x26, 0x20 };
+static const u8 THMC50_REG_TEMP_MIN[] = { 0x3A, 0x38, 0x2C };
+static const u8 THMC50_REG_TEMP_MAX[] = { 0x39, 0x37, 0x2B };
+static const u8 THMC50_REG_TEMP_CRITICAL[] = { 0x13, 0x14, 0x14 };
+static const u8 THMC50_REG_TEMP_DEFAULT[] = { 0x17, 0x18, 0x18 };
+
+#define THMC50_REG_CONF_nFANOFF			0x20
+#define THMC50_REG_CONF_PROGRAMMED		0x08
+
+/* Each client has this additional data */
+struct thmc50_data {
+	struct device *hwmon_dev;
+
+	struct mutex update_lock;
+	enum chips type;
+	unsigned long last_updated;	/* In jiffies */
+	char has_temp3;		/* !=0 if it is ADM1022 in temp3 mode */
+	char valid;		/* !=0 if following fields are valid */
+
+	/* Register values */
+	s8 temp_input[3];
+	s8 temp_max[3];
+	s8 temp_min[3];
+	s8 temp_critical[3];
+	u8 analog_out;
+	u8 alarms;
+};
+
+static int thmc50_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info);
+static int thmc50_probe(struct i2c_client *client,
+			const struct i2c_device_id *id);
+static int thmc50_remove(struct i2c_client *client);
+static void thmc50_init_client(struct i2c_client *client);
+static struct thmc50_data *thmc50_update_device(struct device *dev);
+
+static const struct i2c_device_id thmc50_id[] = {
+	{ "adm1022", adm1022 },
+	{ "thmc50", thmc50 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, thmc50_id);
+
+static struct i2c_driver thmc50_driver = {
+	.class = I2C_CLASS_HWMON,
+	.driver = {
+		.name = "thmc50",
+	},
+	.probe = thmc50_probe,
+	.remove = thmc50_remove,
+	.id_table = thmc50_id,
+	.detect = thmc50_detect,
+	.address_data = &addr_data,
+};
+
+static ssize_t show_analog_out(struct device *dev,
+			       struct device_attribute *attr, char *buf)
+{
+	struct thmc50_data *data = thmc50_update_device(dev);
+	return sprintf(buf, "%d\n", data->analog_out);
+}
+
+static ssize_t set_analog_out(struct device *dev,
+			      struct device_attribute *attr,
+			      const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct thmc50_data *data = i2c_get_clientdata(client);
+	int tmp = simple_strtoul(buf, NULL, 10);
+	int config;
+
+	mutex_lock(&data->update_lock);
+	data->analog_out = SENSORS_LIMIT(tmp, 0, 255);
+	i2c_smbus_write_byte_data(client, THMC50_REG_ANALOG_OUT,
+				  data->analog_out);
+
+	config = i2c_smbus_read_byte_data(client, THMC50_REG_CONF);
+	if (data->analog_out == 0)
+		config &= ~THMC50_REG_CONF_nFANOFF;
+	else
+		config |= THMC50_REG_CONF_nFANOFF;
+	i2c_smbus_write_byte_data(client, THMC50_REG_CONF, config);
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+/* There is only one PWM mode = DC */
+static ssize_t show_pwm_mode(struct device *dev, struct device_attribute *attr,
+			     char *buf)
+{
+	return sprintf(buf, "0\n");
+}
+
+/* Temperatures */
+static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
+			 char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct thmc50_data *data = thmc50_update_device(dev);
+	return sprintf(buf, "%d\n", data->temp_input[nr] * 1000);
+}
+
+static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
+			     char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct thmc50_data *data = thmc50_update_device(dev);
+	return sprintf(buf, "%d\n", data->temp_min[nr] * 1000);
+}
+
+static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
+			    const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct thmc50_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_min[nr] = SENSORS_LIMIT(val / 1000, -128, 127);
+	i2c_smbus_write_byte_data(client, THMC50_REG_TEMP_MIN[nr],
+				  data->temp_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
+			     char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct thmc50_data *data = thmc50_update_device(dev);
+	return sprintf(buf, "%d\n", data->temp_max[nr] * 1000);
+}
+
+static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
+			    const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct thmc50_data *data = i2c_get_clientdata(client);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_max[nr] = SENSORS_LIMIT(val / 1000, -128, 127);
+	i2c_smbus_write_byte_data(client, THMC50_REG_TEMP_MAX[nr],
+				  data->temp_max[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_temp_critical(struct device *dev,
+				  struct device_attribute *attr,
+				  char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct thmc50_data *data = thmc50_update_device(dev);
+	return sprintf(buf, "%d\n", data->temp_critical[nr] * 1000);
+}
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	int index = to_sensor_dev_attr(attr)->index;
+	struct thmc50_data *data = thmc50_update_device(dev);
+
+	return sprintf(buf, "%u\n", (data->alarms >> index) & 1);
+}
+
+#define temp_reg(offset)						\
+static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp,	\
+			NULL, offset - 1);				\
+static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR,	\
+			show_temp_min, set_temp_min, offset - 1);	\
+static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR,	\
+			show_temp_max, set_temp_max, offset - 1);	\
+static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IRUGO,			\
+			show_temp_critical, NULL, offset - 1);
+
+temp_reg(1);
+temp_reg(2);
+temp_reg(3);
+
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 7);
+static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 2);
+
+static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_analog_out,
+			  set_analog_out, 0);
+static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO, show_pwm_mode, NULL, 0);
+
+static struct attribute *thmc50_attributes[] = {
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_min.dev_attr.attr,
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_crit.dev_attr.attr,
+	&sensor_dev_attr_temp1_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_min.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_crit.dev_attr.attr,
+	&sensor_dev_attr_temp2_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_fault.dev_attr.attr,
+	&sensor_dev_attr_pwm1.dev_attr.attr,
+	&sensor_dev_attr_pwm1_mode.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group thmc50_group = {
+	.attrs = thmc50_attributes,
+};
+
+/* for ADM1022 3rd temperature mode */
+static struct attribute *temp3_attributes[] = {
+	&sensor_dev_attr_temp3_max.dev_attr.attr,
+	&sensor_dev_attr_temp3_min.dev_attr.attr,
+	&sensor_dev_attr_temp3_input.dev_attr.attr,
+	&sensor_dev_attr_temp3_crit.dev_attr.attr,
+	&sensor_dev_attr_temp3_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp3_fault.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group temp3_group = {
+	.attrs = temp3_attributes,
+};
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int thmc50_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info)
+{
+	unsigned company;
+	unsigned revision;
+	unsigned config;
+	struct i2c_adapter *adapter = client->adapter;
+	int err = 0;
+	const char *type_name;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
+		pr_debug("thmc50: detect failed, "
+			 "smbus byte data not supported!\n");
+		return -ENODEV;
+	}
+
+	pr_debug("thmc50: Probing for THMC50 at 0x%2X on bus %d\n",
+		 client->addr, i2c_adapter_id(client->adapter));
+
+	/* Now, we do the remaining detection. */
+	company = i2c_smbus_read_byte_data(client, THMC50_REG_COMPANY_ID);
+	revision = i2c_smbus_read_byte_data(client, THMC50_REG_DIE_CODE);
+	config = i2c_smbus_read_byte_data(client, THMC50_REG_CONF);
+
+	if (kind == 0)
+		kind = thmc50;
+	else if (kind < 0) {
+		err = -ENODEV;
+		if (revision >= 0xc0 && ((config & 0x10) == 0)) {
+			if (company == 0x49) {
+				kind = thmc50;
+				err = 0;
+			} else if (company == 0x41) {
+				kind = adm1022;
+				err = 0;
+			}
+		}
+	}
+	if (err == -ENODEV) {
+		pr_debug("thmc50: Detection of THMC50/ADM1022 failed\n");
+		return err;
+	}
+
+	if (kind == adm1022) {
+		int id = i2c_adapter_id(client->adapter);
+		int i;
+
+		type_name = "adm1022";
+		for (i = 0; i + 1 < adm1022_temp3_num; i += 2)
+			if (adm1022_temp3[i] == id &&
+			    adm1022_temp3[i + 1] == client->addr) {
+				/* enable 2nd remote temp */
+				config |= (1 << 7);
+				i2c_smbus_write_byte_data(client,
+							  THMC50_REG_CONF,
+							  config);
+				break;
+			}
+	} else {
+		type_name = "thmc50";
+	}
+	pr_debug("thmc50: Detected %s (version %x, revision %x)\n",
+		 type_name, (revision >> 4) - 0xc, revision & 0xf);
+
+	strlcpy(info->type, type_name, I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int thmc50_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	struct thmc50_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct thmc50_data), GFP_KERNEL);
+	if (!data) {
+		pr_debug("thmc50: detect failed, kzalloc failed!\n");
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	data->type = id->driver_data;
+	mutex_init(&data->update_lock);
+
+	thmc50_init_client(client);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&client->dev.kobj, &thmc50_group)))
+		goto exit_free;
+
+	/* Register ADM1022 sysfs hooks */
+	if (data->has_temp3)
+		if ((err = sysfs_create_group(&client->dev.kobj,
+					      &temp3_group)))
+			goto exit_remove_sysfs_thmc50;
+
+	/* Register a new directory entry with module sensors */
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove_sysfs;
+	}
+
+	return 0;
+
+exit_remove_sysfs:
+	if (data->has_temp3)
+		sysfs_remove_group(&client->dev.kobj, &temp3_group);
+exit_remove_sysfs_thmc50:
+	sysfs_remove_group(&client->dev.kobj, &thmc50_group);
+exit_free:
+	kfree(data);
+exit:
+	return err;
+}
+
+static int thmc50_remove(struct i2c_client *client)
+{
+	struct thmc50_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &thmc50_group);
+	if (data->has_temp3)
+		sysfs_remove_group(&client->dev.kobj, &temp3_group);
+
+	kfree(data);
+
+	return 0;
+}
+
+static void thmc50_init_client(struct i2c_client *client)
+{
+	struct thmc50_data *data = i2c_get_clientdata(client);
+	int config;
+
+	data->analog_out = i2c_smbus_read_byte_data(client,
+						    THMC50_REG_ANALOG_OUT);
+	/* set up to at least 1 */
+	if (data->analog_out == 0) {
+		data->analog_out = 1;
+		i2c_smbus_write_byte_data(client, THMC50_REG_ANALOG_OUT,
+					  data->analog_out);
+	}
+	config = i2c_smbus_read_byte_data(client, THMC50_REG_CONF);
+	config |= 0x1;	/* start the chip if it is in standby mode */
+	if (data->type == adm1022 && (config & (1 << 7)))
+		data->has_temp3 = 1;
+	i2c_smbus_write_byte_data(client, THMC50_REG_CONF, config);
+}
+
+static struct thmc50_data *thmc50_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct thmc50_data *data = i2c_get_clientdata(client);
+	int timeout = HZ / 5 + (data->type == thmc50 ? HZ : 0);
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + timeout)
+	    || !data->valid) {
+
+		int temps = data->has_temp3 ? 3 : 2;
+		int i;
+		int prog = i2c_smbus_read_byte_data(client, THMC50_REG_CONF);
+
+		prog &= THMC50_REG_CONF_PROGRAMMED;
+
+		for (i = 0; i < temps; i++) {
+			data->temp_input[i] = i2c_smbus_read_byte_data(client,
+						THMC50_REG_TEMP[i]);
+			data->temp_max[i] = i2c_smbus_read_byte_data(client,
+						THMC50_REG_TEMP_MAX[i]);
+			data->temp_min[i] = i2c_smbus_read_byte_data(client,
+						THMC50_REG_TEMP_MIN[i]);
+			data->temp_critical[i] =
+				i2c_smbus_read_byte_data(client,
+					prog ? THMC50_REG_TEMP_CRITICAL[i]
+					     : THMC50_REG_TEMP_DEFAULT[i]);
+		}
+		data->analog_out =
+		    i2c_smbus_read_byte_data(client, THMC50_REG_ANALOG_OUT);
+		data->alarms =
+		    i2c_smbus_read_byte_data(client, THMC50_REG_INTR);
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init sm_thmc50_init(void)
+{
+	return i2c_add_driver(&thmc50_driver);
+}
+
+static void __exit sm_thmc50_exit(void)
+{
+	i2c_del_driver(&thmc50_driver);
+}
+
+MODULE_AUTHOR("Krzysztof Helt <krzysztof.h1@wp.pl>");
+MODULE_DESCRIPTION("THMC50 driver");
+
+module_init(sm_thmc50_init);
+module_exit(sm_thmc50_exit);
diff --git a/drivers/hwmon/ultra45_env.c b/drivers/hwmon/ultra45_env.c
new file mode 100644
index 0000000..68e90ab
--- /dev/null
+++ b/drivers/hwmon/ultra45_env.c
@@ -0,0 +1,320 @@
+/* ultra45_env.c: Driver for Ultra45 PIC16F747 environmental monitor.
+ *
+ * Copyright (C) 2008 David S. Miller <davem@davemloft.net>
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/of_device.h>
+#include <linux/io.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+
+#define DRV_MODULE_VERSION	"0.1"
+
+MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
+MODULE_DESCRIPTION("Ultra45 environmental monitor driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_MODULE_VERSION);
+
+/* PIC device registers */
+#define REG_CMD		0x00UL
+#define  REG_CMD_RESET	0x80
+#define  REG_CMD_ESTAR	0x01
+#define REG_STAT	0x01UL
+#define  REG_STAT_FWVER	0xf0
+#define  REG_STAT_TGOOD	0x08
+#define  REG_STAT_STALE	0x04
+#define  REG_STAT_BUSY	0x02
+#define  REG_STAT_FAULT	0x01
+#define REG_DATA	0x40UL
+#define REG_ADDR	0x41UL
+#define REG_SIZE	0x42UL
+
+/* Registers accessed indirectly via REG_DATA/REG_ADDR */
+#define IREG_FAN0		0x00
+#define IREG_FAN1		0x01
+#define IREG_FAN2		0x02
+#define IREG_FAN3		0x03
+#define IREG_FAN4		0x04
+#define IREG_FAN5		0x05
+#define IREG_LCL_TEMP		0x06
+#define IREG_RMT1_TEMP		0x07
+#define IREG_RMT2_TEMP		0x08
+#define IREG_RMT3_TEMP		0x09
+#define IREG_LM95221_TEMP	0x0a
+#define IREG_FIRE_TEMP		0x0b
+#define IREG_LSI1064_TEMP	0x0c
+#define IREG_FRONT_TEMP		0x0d
+#define IREG_FAN_STAT		0x0e
+#define IREG_VCORE0		0x0f
+#define IREG_VCORE1		0x10
+#define IREG_VMEM0		0x11
+#define IREG_VMEM1		0x12
+#define IREG_PSU_TEMP		0x13
+
+struct env {
+	void __iomem	*regs;
+	spinlock_t	lock;
+
+	struct device	*hwmon_dev;
+};
+
+static u8 env_read(struct env *p, u8 ireg)
+{
+	u8 ret;
+
+	spin_lock(&p->lock);
+	writeb(ireg, p->regs + REG_ADDR);
+	ret = readb(p->regs + REG_DATA);
+	spin_unlock(&p->lock);
+
+	return ret;
+}
+
+static void env_write(struct env *p, u8 ireg, u8 val)
+{
+	spin_lock(&p->lock);
+	writeb(ireg, p->regs + REG_ADDR);
+	writeb(val, p->regs + REG_DATA);
+	spin_unlock(&p->lock);
+}
+
+/* There seems to be a adr7462 providing these values, thus a lot
+ * of these calculations are borrowed from the adt7470 driver.
+ */
+#define FAN_PERIOD_TO_RPM(x)	((90000 * 60) / (x))
+#define FAN_RPM_TO_PERIOD	FAN_PERIOD_TO_RPM
+#define FAN_PERIOD_INVALID	(0xff << 8)
+#define FAN_DATA_VALID(x)	((x) && (x) != FAN_PERIOD_INVALID)
+
+static ssize_t show_fan_speed(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	int fan_nr = to_sensor_dev_attr(attr)->index;
+	struct env *p = dev_get_drvdata(dev);
+	int rpm, period;
+	u8 val;
+
+	val = env_read(p, IREG_FAN0 + fan_nr);
+	period = (int) val << 8;
+	if (FAN_DATA_VALID(period))
+		rpm = FAN_PERIOD_TO_RPM(period);
+	else
+		rpm = 0;
+
+	return sprintf(buf, "%d\n", rpm);
+}
+
+static ssize_t set_fan_speed(struct device *dev, struct device_attribute *attr,
+			     const char *buf, size_t count)
+{
+	int fan_nr = to_sensor_dev_attr(attr)->index;
+	int rpm = simple_strtol(buf, NULL, 10);
+	struct env *p = dev_get_drvdata(dev);
+	int period;
+	u8 val;
+
+	if (!rpm)
+		return -EINVAL;
+
+	period = FAN_RPM_TO_PERIOD(rpm);
+	val = period >> 8;
+	env_write(p, IREG_FAN0 + fan_nr, val);
+
+	return count;
+}
+
+static ssize_t show_fan_fault(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	int fan_nr = to_sensor_dev_attr(attr)->index;
+	struct env *p = dev_get_drvdata(dev);
+	u8 val = env_read(p, IREG_FAN_STAT);
+	return sprintf(buf, "%d\n", (val & (1 << fan_nr)) ? 1 : 0);
+}
+
+#define fan(index)							\
+static SENSOR_DEVICE_ATTR(fan##index##_speed, S_IRUGO | S_IWUSR,	\
+		show_fan_speed, set_fan_speed, index);			\
+static SENSOR_DEVICE_ATTR(fan##index##_fault, S_IRUGO,			\
+		show_fan_fault, NULL, index)
+
+fan(0);
+fan(1);
+fan(2);
+fan(3);
+fan(4);
+
+static SENSOR_DEVICE_ATTR(psu_fan_fault, S_IRUGO, show_fan_fault, NULL, 6);
+
+static ssize_t show_temp(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	int temp_nr = to_sensor_dev_attr(attr)->index;
+	struct env *p = dev_get_drvdata(dev);
+	s8 val;
+
+	val = env_read(p, IREG_LCL_TEMP + temp_nr);
+	return sprintf(buf, "%d\n", ((int) val) - 64);
+}
+
+static SENSOR_DEVICE_ATTR(adt7462_local_temp, S_IRUGO, show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(cpu0_temp, S_IRUGO, show_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(cpu1_temp, S_IRUGO, show_temp, NULL, 2);
+static SENSOR_DEVICE_ATTR(motherboard_temp, S_IRUGO, show_temp, NULL, 3);
+static SENSOR_DEVICE_ATTR(lm95221_local_temp, S_IRUGO, show_temp, NULL, 4);
+static SENSOR_DEVICE_ATTR(fire_temp, S_IRUGO, show_temp, NULL, 5);
+static SENSOR_DEVICE_ATTR(lsi1064_local_temp, S_IRUGO, show_temp, NULL, 6);
+static SENSOR_DEVICE_ATTR(front_panel_temp, S_IRUGO, show_temp, NULL, 7);
+static SENSOR_DEVICE_ATTR(psu_temp, S_IRUGO, show_temp, NULL, 13);
+
+static ssize_t show_stat_bit(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	int index = to_sensor_dev_attr(attr)->index;
+	struct env *p = dev_get_drvdata(dev);
+	u8 val;
+
+	val = readb(p->regs + REG_STAT);
+	return sprintf(buf, "%d\n", (val & (1 << index)) ? 1 : 0);
+}
+
+static SENSOR_DEVICE_ATTR(fan_failure, S_IRUGO, show_stat_bit, NULL, 0);
+static SENSOR_DEVICE_ATTR(env_bus_busy, S_IRUGO, show_stat_bit, NULL, 1);
+static SENSOR_DEVICE_ATTR(env_data_stale, S_IRUGO, show_stat_bit, NULL, 2);
+static SENSOR_DEVICE_ATTR(tpm_self_test_passed, S_IRUGO, show_stat_bit, NULL, 3);
+
+static ssize_t show_fwver(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct env *p = dev_get_drvdata(dev);
+	u8 val;
+
+	val = readb(p->regs + REG_STAT);
+	return sprintf(buf, "%d\n", val >> 4);
+}
+
+static SENSOR_DEVICE_ATTR(firmware_version, S_IRUGO, show_fwver, NULL, 0);
+
+static ssize_t show_name(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "ultra45\n");
+}
+
+static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0);
+
+static struct attribute *env_attributes[] = {
+	&sensor_dev_attr_fan0_speed.dev_attr.attr,
+	&sensor_dev_attr_fan0_fault.dev_attr.attr,
+	&sensor_dev_attr_fan1_speed.dev_attr.attr,
+	&sensor_dev_attr_fan1_fault.dev_attr.attr,
+	&sensor_dev_attr_fan2_speed.dev_attr.attr,
+	&sensor_dev_attr_fan2_fault.dev_attr.attr,
+	&sensor_dev_attr_fan3_speed.dev_attr.attr,
+	&sensor_dev_attr_fan3_fault.dev_attr.attr,
+	&sensor_dev_attr_fan4_speed.dev_attr.attr,
+	&sensor_dev_attr_fan4_fault.dev_attr.attr,
+	&sensor_dev_attr_psu_fan_fault.dev_attr.attr,
+	&sensor_dev_attr_adt7462_local_temp.dev_attr.attr,
+	&sensor_dev_attr_cpu0_temp.dev_attr.attr,
+	&sensor_dev_attr_cpu1_temp.dev_attr.attr,
+	&sensor_dev_attr_motherboard_temp.dev_attr.attr,
+	&sensor_dev_attr_lm95221_local_temp.dev_attr.attr,
+	&sensor_dev_attr_fire_temp.dev_attr.attr,
+	&sensor_dev_attr_lsi1064_local_temp.dev_attr.attr,
+	&sensor_dev_attr_front_panel_temp.dev_attr.attr,
+	&sensor_dev_attr_psu_temp.dev_attr.attr,
+	&sensor_dev_attr_fan_failure.dev_attr.attr,
+	&sensor_dev_attr_env_bus_busy.dev_attr.attr,
+	&sensor_dev_attr_env_data_stale.dev_attr.attr,
+	&sensor_dev_attr_tpm_self_test_passed.dev_attr.attr,
+	&sensor_dev_attr_firmware_version.dev_attr.attr,
+	&sensor_dev_attr_name.dev_attr.attr,
+	NULL,
+};
+
+static const struct attribute_group env_group = {
+	.attrs = env_attributes,
+};
+
+static int __devinit env_probe(struct of_device *op,
+			       const struct of_device_id *match)
+{
+	struct env *p = kzalloc(sizeof(*p), GFP_KERNEL);
+	int err = -ENOMEM;
+
+	if (!p)
+		goto out;
+
+	spin_lock_init(&p->lock);
+
+	p->regs = of_ioremap(&op->resource[0], 0, REG_SIZE, "pic16f747");
+	if (!p->regs)
+		goto out_free;
+
+	err = sysfs_create_group(&op->dev.kobj, &env_group);
+	if (err)
+		goto out_iounmap;
+
+	p->hwmon_dev = hwmon_device_register(&op->dev);
+	if (IS_ERR(p->hwmon_dev)) {
+		err = PTR_ERR(p->hwmon_dev);
+		goto out_sysfs_remove_group;
+	}
+
+	dev_set_drvdata(&op->dev, p);
+	err = 0;
+
+out:
+	return err;
+
+out_sysfs_remove_group:
+	sysfs_remove_group(&op->dev.kobj, &env_group);
+
+out_iounmap:
+	of_iounmap(&op->resource[0], p->regs, REG_SIZE);
+
+out_free:
+	kfree(p);
+	goto out;
+}
+
+static int __devexit env_remove(struct of_device *op)
+{
+	struct env *p = dev_get_drvdata(&op->dev);
+
+	if (p) {
+		sysfs_remove_group(&op->dev.kobj, &env_group);
+		hwmon_device_unregister(p->hwmon_dev);
+		of_iounmap(&op->resource[0], p->regs, REG_SIZE);
+		kfree(p);
+	}
+
+	return 0;
+}
+
+static const struct of_device_id env_match[] = {
+	{
+		.name = "env-monitor",
+		.compatible = "SUNW,ebus-pic16f747-env",
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, env_match);
+
+static struct of_platform_driver env_driver = {
+	.name		= "ultra45_env",
+	.match_table	= env_match,
+	.probe		= env_probe,
+	.remove		= __devexit_p(env_remove),
+};
+
+static int __init env_init(void)
+{
+	return of_register_driver(&env_driver, &of_bus_type);
+}
+
+static void __exit env_exit(void)
+{
+	of_unregister_driver(&env_driver);
+}
+
+module_init(env_init);
+module_exit(env_exit);
diff --git a/drivers/hwmon/via686a.c b/drivers/hwmon/via686a.c
new file mode 100644
index 0000000..f1ee5e7
--- /dev/null
+++ b/drivers/hwmon/via686a.c
@@ -0,0 +1,904 @@
+/*
+    via686a.c - Part of lm_sensors, Linux kernel modules
+		for hardware monitoring
+
+    Copyright (c) 1998 - 2002  Frodo Looijaard <frodol@dds.nl>,
+			Kyösti Mälkki <kmalkki@cc.hut.fi>,
+			Mark Studebaker <mdsxyz123@yahoo.com>,
+			and Bob Dougherty <bobd@stanford.edu>
+    (Some conversion-factor data were contributed by Jonathan Teh Soon Yew
+    <j.teh@iname.com> and Alex van Kaam <darkside@chello.nl>.)
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+    Supports the Via VT82C686A, VT82C686B south bridges.
+    Reports all as a 686A.
+    Warning - only supports a single device.
+*/
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+#include <asm/io.h>
+
+
+/* If force_addr is set to anything different from 0, we forcibly enable
+   the device at the given address. */
+static unsigned short force_addr;
+module_param(force_addr, ushort, 0);
+MODULE_PARM_DESC(force_addr,
+		 "Initialize the base address of the sensors");
+
+static struct platform_device *pdev;
+
+/*
+   The Via 686a southbridge has a LM78-like chip integrated on the same IC.
+   This driver is a customized copy of lm78.c
+*/
+
+/* Many VIA686A constants specified below */
+
+/* Length of ISA address segment */
+#define VIA686A_EXTENT		0x80
+#define VIA686A_BASE_REG	0x70
+#define VIA686A_ENABLE_REG	0x74
+
+/* The VIA686A registers */
+/* ins numbered 0-4 */
+#define VIA686A_REG_IN_MAX(nr)	(0x2b + ((nr) * 2))
+#define VIA686A_REG_IN_MIN(nr)	(0x2c + ((nr) * 2))
+#define VIA686A_REG_IN(nr)	(0x22 + (nr))
+
+/* fans numbered 1-2 */
+#define VIA686A_REG_FAN_MIN(nr)	(0x3a + (nr))
+#define VIA686A_REG_FAN(nr)	(0x28 + (nr))
+
+/* temps numbered 1-3 */
+static const u8 VIA686A_REG_TEMP[]	= { 0x20, 0x21, 0x1f };
+static const u8 VIA686A_REG_TEMP_OVER[]	= { 0x39, 0x3d, 0x1d };
+static const u8 VIA686A_REG_TEMP_HYST[]	= { 0x3a, 0x3e, 0x1e };
+/* bits 7-6 */
+#define VIA686A_REG_TEMP_LOW1	0x4b
+/* 2 = bits 5-4, 3 = bits 7-6 */
+#define VIA686A_REG_TEMP_LOW23	0x49
+
+#define VIA686A_REG_ALARM1	0x41
+#define VIA686A_REG_ALARM2	0x42
+#define VIA686A_REG_FANDIV	0x47
+#define VIA686A_REG_CONFIG	0x40
+/* The following register sets temp interrupt mode (bits 1-0 for temp1,
+ 3-2 for temp2, 5-4 for temp3).  Modes are:
+    00 interrupt stays as long as value is out-of-range
+    01 interrupt is cleared once register is read (default)
+    10 comparator mode- like 00, but ignores hysteresis
+    11 same as 00 */
+#define VIA686A_REG_TEMP_MODE		0x4b
+/* We'll just assume that you want to set all 3 simultaneously: */
+#define VIA686A_TEMP_MODE_MASK		0x3F
+#define VIA686A_TEMP_MODE_CONTINUOUS	0x00
+
+/* Conversions. Limit checking is only done on the TO_REG
+   variants.
+
+********* VOLTAGE CONVERSIONS (Bob Dougherty) ********
+ From HWMon.cpp (Copyright 1998-2000 Jonathan Teh Soon Yew):
+ voltagefactor[0]=1.25/2628; (2628/1.25=2102.4)   // Vccp
+ voltagefactor[1]=1.25/2628; (2628/1.25=2102.4)   // +2.5V
+ voltagefactor[2]=1.67/2628; (2628/1.67=1573.7)   // +3.3V
+ voltagefactor[3]=2.6/2628;  (2628/2.60=1010.8)   // +5V
+ voltagefactor[4]=6.3/2628;  (2628/6.30=417.14)   // +12V
+ in[i]=(data[i+2]*25.0+133)*voltagefactor[i];
+ That is:
+ volts = (25*regVal+133)*factor
+ regVal = (volts/factor-133)/25
+ (These conversions were contributed by Jonathan Teh Soon Yew
+ <j.teh@iname.com>) */
+static inline u8 IN_TO_REG(long val, int inNum)
+{
+	/* To avoid floating point, we multiply constants by 10 (100 for +12V).
+	   Rounding is done (120500 is actually 133000 - 12500).
+	   Remember that val is expressed in 0.001V/bit, which is why we divide
+	   by an additional 10000 (100000 for +12V): 1000 for val and 10 (100)
+	   for the constants. */
+	if (inNum <= 1)
+		return (u8)
+		    SENSORS_LIMIT((val * 21024 - 1205000) / 250000, 0, 255);
+	else if (inNum == 2)
+		return (u8)
+		    SENSORS_LIMIT((val * 15737 - 1205000) / 250000, 0, 255);
+	else if (inNum == 3)
+		return (u8)
+		    SENSORS_LIMIT((val * 10108 - 1205000) / 250000, 0, 255);
+	else
+		return (u8)
+		    SENSORS_LIMIT((val * 41714 - 12050000) / 2500000, 0, 255);
+}
+
+static inline long IN_FROM_REG(u8 val, int inNum)
+{
+	/* To avoid floating point, we multiply constants by 10 (100 for +12V).
+	   We also multiply them by 1000 because we want 0.001V/bit for the
+	   output value. Rounding is done. */
+	if (inNum <= 1)
+		return (long) ((250000 * val + 1330000 + 21024 / 2) / 21024);
+	else if (inNum == 2)
+		return (long) ((250000 * val + 1330000 + 15737 / 2) / 15737);
+	else if (inNum == 3)
+		return (long) ((250000 * val + 1330000 + 10108 / 2) / 10108);
+	else
+		return (long) ((2500000 * val + 13300000 + 41714 / 2) / 41714);
+}
+
+/********* FAN RPM CONVERSIONS ********/
+/* Higher register values = slower fans (the fan's strobe gates a counter).
+ But this chip saturates back at 0, not at 255 like all the other chips.
+ So, 0 means 0 RPM */
+static inline u8 FAN_TO_REG(long rpm, int div)
+{
+	if (rpm == 0)
+		return 0;
+	rpm = SENSORS_LIMIT(rpm, 1, 1000000);
+	return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 255);
+}
+
+#define FAN_FROM_REG(val,div) ((val)==0?0:(val)==255?0:1350000/((val)*(div)))
+
+/******** TEMP CONVERSIONS (Bob Dougherty) *********/
+/* linear fits from HWMon.cpp (Copyright 1998-2000 Jonathan Teh Soon Yew)
+      if(temp<169)
+	      return double(temp)*0.427-32.08;
+      else if(temp>=169 && temp<=202)
+	      return double(temp)*0.582-58.16;
+      else
+	      return double(temp)*0.924-127.33;
+
+ A fifth-order polynomial fits the unofficial data (provided by Alex van
+ Kaam <darkside@chello.nl>) a bit better.  It also give more reasonable
+ numbers on my machine (ie. they agree with what my BIOS tells me).
+ Here's the fifth-order fit to the 8-bit data:
+ temp = 1.625093e-10*val^5 - 1.001632e-07*val^4 + 2.457653e-05*val^3 -
+	2.967619e-03*val^2 + 2.175144e-01*val - 7.090067e+0.
+
+ (2000-10-25- RFD: thanks to Uwe Andersen <uandersen@mayah.com> for
+ finding my typos in this formula!)
+
+ Alas, none of the elegant function-fit solutions will work because we
+ aren't allowed to use floating point in the kernel and doing it with
+ integers doesn't provide enough precision.  So we'll do boring old
+ look-up table stuff.  The unofficial data (see below) have effectively
+ 7-bit resolution (they are rounded to the nearest degree).  I'm assuming
+ that the transfer function of the device is monotonic and smooth, so a
+ smooth function fit to the data will allow us to get better precision.
+ I used the 5th-order poly fit described above and solved for
+ VIA register values 0-255.  I *10 before rounding, so we get tenth-degree
+ precision.  (I could have done all 1024 values for our 10-bit readings,
+ but the function is very linear in the useful range (0-80 deg C), so
+ we'll just use linear interpolation for 10-bit readings.)  So, tempLUT
+ is the temp at via register values 0-255: */
+static const s16 tempLUT[] =
+{ -709, -688, -667, -646, -627, -607, -589, -570, -553, -536, -519,
+	-503, -487, -471, -456, -442, -428, -414, -400, -387, -375,
+	-362, -350, -339, -327, -316, -305, -295, -285, -275, -265,
+	-255, -246, -237, -229, -220, -212, -204, -196, -188, -180,
+	-173, -166, -159, -152, -145, -139, -132, -126, -120, -114,
+	-108, -102, -96, -91, -85, -80, -74, -69, -64, -59, -54, -49,
+	-44, -39, -34, -29, -25, -20, -15, -11, -6, -2, 3, 7, 12, 16,
+	20, 25, 29, 33, 37, 42, 46, 50, 54, 59, 63, 67, 71, 75, 79, 84,
+	88, 92, 96, 100, 104, 109, 113, 117, 121, 125, 130, 134, 138,
+	142, 146, 151, 155, 159, 163, 168, 172, 176, 181, 185, 189,
+	193, 198, 202, 206, 211, 215, 219, 224, 228, 232, 237, 241,
+	245, 250, 254, 259, 263, 267, 272, 276, 281, 285, 290, 294,
+	299, 303, 307, 312, 316, 321, 325, 330, 334, 339, 344, 348,
+	353, 357, 362, 366, 371, 376, 380, 385, 390, 395, 399, 404,
+	409, 414, 419, 423, 428, 433, 438, 443, 449, 454, 459, 464,
+	469, 475, 480, 486, 491, 497, 502, 508, 514, 520, 526, 532,
+	538, 544, 551, 557, 564, 571, 578, 584, 592, 599, 606, 614,
+	621, 629, 637, 645, 654, 662, 671, 680, 689, 698, 708, 718,
+	728, 738, 749, 759, 770, 782, 793, 805, 818, 830, 843, 856,
+	870, 883, 898, 912, 927, 943, 958, 975, 991, 1008, 1026, 1044,
+	1062, 1081, 1101, 1121, 1141, 1162, 1184, 1206, 1229, 1252,
+	1276, 1301, 1326, 1352, 1378, 1406, 1434, 1462
+};
+
+/* the original LUT values from Alex van Kaam <darkside@chello.nl>
+   (for via register values 12-240):
+{-50,-49,-47,-45,-43,-41,-39,-38,-37,-35,-34,-33,-32,-31,
+-30,-29,-28,-27,-26,-25,-24,-24,-23,-22,-21,-20,-20,-19,-18,-17,-17,-16,-15,
+-15,-14,-14,-13,-12,-12,-11,-11,-10,-9,-9,-8,-8,-7,-7,-6,-6,-5,-5,-4,-4,-3,
+-3,-2,-2,-1,-1,0,0,1,1,1,3,3,3,4,4,4,5,5,5,6,6,7,7,8,8,9,9,9,10,10,11,11,12,
+12,12,13,13,13,14,14,15,15,16,16,16,17,17,18,18,19,19,20,20,21,21,21,22,22,
+22,23,23,24,24,25,25,26,26,26,27,27,27,28,28,29,29,30,30,30,31,31,32,32,33,
+33,34,34,35,35,35,36,36,37,37,38,38,39,39,40,40,41,41,42,42,43,43,44,44,45,
+45,46,46,47,48,48,49,49,50,51,51,52,52,53,53,54,55,55,56,57,57,58,59,59,60,
+61,62,62,63,64,65,66,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,83,84,
+85,86,88,89,91,92,94,96,97,99,101,103,105,107,109,110};
+
+
+ Here's the reverse LUT.  I got it by doing a 6-th order poly fit (needed
+ an extra term for a good fit to these inverse data!) and then
+ solving for each temp value from -50 to 110 (the useable range for
+ this chip).  Here's the fit:
+ viaRegVal = -1.160370e-10*val^6 +3.193693e-08*val^5 - 1.464447e-06*val^4
+ - 2.525453e-04*val^3 + 1.424593e-02*val^2 + 2.148941e+00*val +7.275808e+01)
+ Note that n=161: */
+static const u8 viaLUT[] =
+{ 12, 12, 13, 14, 14, 15, 16, 16, 17, 18, 18, 19, 20, 20, 21, 22, 23,
+	23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 35, 36, 37, 39, 40,
+	41, 43, 45, 46, 48, 49, 51, 53, 55, 57, 59, 60, 62, 64, 66,
+	69, 71, 73, 75, 77, 79, 82, 84, 86, 88, 91, 93, 95, 98, 100,
+	103, 105, 107, 110, 112, 115, 117, 119, 122, 124, 126, 129,
+	131, 134, 136, 138, 140, 143, 145, 147, 150, 152, 154, 156,
+	158, 160, 162, 164, 166, 168, 170, 172, 174, 176, 178, 180,
+	182, 183, 185, 187, 188, 190, 192, 193, 195, 196, 198, 199,
+	200, 202, 203, 205, 206, 207, 208, 209, 210, 211, 212, 213,
+	214, 215, 216, 217, 218, 219, 220, 221, 222, 222, 223, 224,
+	225, 226, 226, 227, 228, 228, 229, 230, 230, 231, 232, 232,
+	233, 233, 234, 235, 235, 236, 236, 237, 237, 238, 238, 239,
+	239, 240
+};
+
+/* Converting temps to (8-bit) hyst and over registers
+   No interpolation here.
+   The +50 is because the temps start at -50 */
+static inline u8 TEMP_TO_REG(long val)
+{
+	return viaLUT[val <= -50000 ? 0 : val >= 110000 ? 160 :
+		      (val < 0 ? val - 500 : val + 500) / 1000 + 50];
+}
+
+/* for 8-bit temperature hyst and over registers */
+#define TEMP_FROM_REG(val)	((long)tempLUT[val] * 100)
+
+/* for 10-bit temperature readings */
+static inline long TEMP_FROM_REG10(u16 val)
+{
+	u16 eightBits = val >> 2;
+	u16 twoBits = val & 3;
+
+	/* no interpolation for these */
+	if (twoBits == 0 || eightBits == 255)
+		return TEMP_FROM_REG(eightBits);
+
+	/* do some linear interpolation */
+	return (tempLUT[eightBits] * (4 - twoBits) +
+		tempLUT[eightBits + 1] * twoBits) * 25;
+}
+
+#define DIV_FROM_REG(val) (1 << (val))
+#define DIV_TO_REG(val) ((val)==8?3:(val)==4?2:(val)==1?0:1)
+
+/* For each registered chip, we need to keep some data in memory.
+   The structure is dynamically allocated. */
+struct via686a_data {
+	unsigned short addr;
+	const char *name;
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	char valid;		/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+
+	u8 in[5];		/* Register value */
+	u8 in_max[5];		/* Register value */
+	u8 in_min[5];		/* Register value */
+	u8 fan[2];		/* Register value */
+	u8 fan_min[2];		/* Register value */
+	u16 temp[3];		/* Register value 10 bit */
+	u8 temp_over[3];	/* Register value */
+	u8 temp_hyst[3];	/* Register value */
+	u8 fan_div[2];		/* Register encoding, shifted right */
+	u16 alarms;		/* Register encoding, combined */
+};
+
+static struct pci_dev *s_bridge;	/* pointer to the (only) via686a */
+
+static int via686a_probe(struct platform_device *pdev);
+static int __devexit via686a_remove(struct platform_device *pdev);
+
+static inline int via686a_read_value(struct via686a_data *data, u8 reg)
+{
+	return inb_p(data->addr + reg);
+}
+
+static inline void via686a_write_value(struct via686a_data *data, u8 reg,
+				       u8 value)
+{
+	outb_p(value, data->addr + reg);
+}
+
+static struct via686a_data *via686a_update_device(struct device *dev);
+static void via686a_init_device(struct via686a_data *data);
+
+/* following are the sysfs callback functions */
+
+/* 7 voltage sensors */
+static ssize_t show_in(struct device *dev, struct device_attribute *da,
+		char *buf) {
+	struct via686a_data *data = via686a_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	return sprintf(buf, "%ld\n", IN_FROM_REG(data->in[nr], nr));
+}
+
+static ssize_t show_in_min(struct device *dev, struct device_attribute *da,
+		char *buf) {
+	struct via686a_data *data = via686a_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	return sprintf(buf, "%ld\n", IN_FROM_REG(data->in_min[nr], nr));
+}
+
+static ssize_t show_in_max(struct device *dev, struct device_attribute *da,
+		char *buf) {
+	struct via686a_data *data = via686a_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	return sprintf(buf, "%ld\n", IN_FROM_REG(data->in_max[nr], nr));
+}
+
+static ssize_t set_in_min(struct device *dev, struct device_attribute *da,
+		const char *buf, size_t count) {
+	struct via686a_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_min[nr] = IN_TO_REG(val, nr);
+	via686a_write_value(data, VIA686A_REG_IN_MIN(nr),
+			data->in_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t set_in_max(struct device *dev, struct device_attribute *da,
+		const char *buf, size_t count) {
+	struct via686a_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_max[nr] = IN_TO_REG(val, nr);
+	via686a_write_value(data, VIA686A_REG_IN_MAX(nr),
+			data->in_max[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+#define show_in_offset(offset)					\
+static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO,		\
+		show_in, NULL, offset);				\
+static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,	\
+		show_in_min, set_in_min, offset);		\
+static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,	\
+		show_in_max, set_in_max, offset);
+
+show_in_offset(0);
+show_in_offset(1);
+show_in_offset(2);
+show_in_offset(3);
+show_in_offset(4);
+
+/* 3 temperatures */
+static ssize_t show_temp(struct device *dev, struct device_attribute *da,
+		char *buf) {
+	struct via686a_data *data = via686a_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	return sprintf(buf, "%ld\n", TEMP_FROM_REG10(data->temp[nr]));
+}
+static ssize_t show_temp_over(struct device *dev, struct device_attribute *da,
+		char *buf) {
+	struct via686a_data *data = via686a_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	return sprintf(buf, "%ld\n", TEMP_FROM_REG(data->temp_over[nr]));
+}
+static ssize_t show_temp_hyst(struct device *dev, struct device_attribute *da,
+		char *buf) {
+	struct via686a_data *data = via686a_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	return sprintf(buf, "%ld\n", TEMP_FROM_REG(data->temp_hyst[nr]));
+}
+static ssize_t set_temp_over(struct device *dev, struct device_attribute *da,
+		const char *buf, size_t count) {
+	struct via686a_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_over[nr] = TEMP_TO_REG(val);
+	via686a_write_value(data, VIA686A_REG_TEMP_OVER[nr],
+			    data->temp_over[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t set_temp_hyst(struct device *dev, struct device_attribute *da,
+		const char *buf, size_t count) {
+	struct via686a_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_hyst[nr] = TEMP_TO_REG(val);
+	via686a_write_value(data, VIA686A_REG_TEMP_HYST[nr],
+			    data->temp_hyst[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+#define show_temp_offset(offset)					\
+static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO,		\
+		show_temp, NULL, offset - 1);				\
+static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR,	\
+		show_temp_over, set_temp_over, offset - 1);		\
+static SENSOR_DEVICE_ATTR(temp##offset##_max_hyst, S_IRUGO | S_IWUSR,	\
+		show_temp_hyst, set_temp_hyst, offset - 1);
+
+show_temp_offset(1);
+show_temp_offset(2);
+show_temp_offset(3);
+
+/* 2 Fans */
+static ssize_t show_fan(struct device *dev, struct device_attribute *da,
+		char *buf) {
+	struct via686a_data *data = via686a_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],
+				DIV_FROM_REG(data->fan_div[nr])) );
+}
+static ssize_t show_fan_min(struct device *dev, struct device_attribute *da,
+		char *buf) {
+	struct via686a_data *data = via686a_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	return sprintf(buf, "%d\n",
+		FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr])) );
+}
+static ssize_t show_fan_div(struct device *dev, struct device_attribute *da,
+		char *buf) {
+	struct via686a_data *data = via686a_update_device(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]) );
+}
+static ssize_t set_fan_min(struct device *dev, struct device_attribute *da,
+		const char *buf, size_t count) {
+	struct via686a_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
+	via686a_write_value(data, VIA686A_REG_FAN_MIN(nr+1), data->fan_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t set_fan_div(struct device *dev, struct device_attribute *da,
+		const char *buf, size_t count) {
+	struct via686a_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	int nr = attr->index;
+	int val = simple_strtol(buf, NULL, 10);
+	int old;
+
+	mutex_lock(&data->update_lock);
+	old = via686a_read_value(data, VIA686A_REG_FANDIV);
+	data->fan_div[nr] = DIV_TO_REG(val);
+	old = (old & 0x0f) | (data->fan_div[1] << 6) | (data->fan_div[0] << 4);
+	via686a_write_value(data, VIA686A_REG_FANDIV, old);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define show_fan_offset(offset)						\
+static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO,			\
+		show_fan, NULL, offset - 1);				\
+static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,		\
+		show_fan_min, set_fan_min, offset - 1);			\
+static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR,		\
+		show_fan_div, set_fan_div, offset - 1);
+
+show_fan_offset(1);
+show_fan_offset(2);
+
+/* Alarms */
+static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf) {
+	struct via686a_data *data = via686a_update_device(dev);
+	return sprintf(buf, "%u\n", data->alarms);
+}
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	struct via686a_data *data = via686a_update_device(dev);
+	return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
+}
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 11);
+static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 15);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7);
+
+static ssize_t show_name(struct device *dev, struct device_attribute
+			 *devattr, char *buf)
+{
+	struct via686a_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%s\n", data->name);
+}
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+
+static struct attribute *via686a_attributes[] = {
+	&sensor_dev_attr_in0_input.dev_attr.attr,
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in4_input.dev_attr.attr,
+	&sensor_dev_attr_in0_min.dev_attr.attr,
+	&sensor_dev_attr_in1_min.dev_attr.attr,
+	&sensor_dev_attr_in2_min.dev_attr.attr,
+	&sensor_dev_attr_in3_min.dev_attr.attr,
+	&sensor_dev_attr_in4_min.dev_attr.attr,
+	&sensor_dev_attr_in0_max.dev_attr.attr,
+	&sensor_dev_attr_in1_max.dev_attr.attr,
+	&sensor_dev_attr_in2_max.dev_attr.attr,
+	&sensor_dev_attr_in3_max.dev_attr.attr,
+	&sensor_dev_attr_in4_max.dev_attr.attr,
+	&sensor_dev_attr_in0_alarm.dev_attr.attr,
+	&sensor_dev_attr_in1_alarm.dev_attr.attr,
+	&sensor_dev_attr_in2_alarm.dev_attr.attr,
+	&sensor_dev_attr_in3_alarm.dev_attr.attr,
+	&sensor_dev_attr_in4_alarm.dev_attr.attr,
+
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp3_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp3_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp1_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp3_alarm.dev_attr.attr,
+
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_div.dev_attr.attr,
+	&sensor_dev_attr_fan2_div.dev_attr.attr,
+	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
+
+	&dev_attr_alarms.attr,
+	&dev_attr_name.attr,
+	NULL
+};
+
+static const struct attribute_group via686a_group = {
+	.attrs = via686a_attributes,
+};
+
+static struct platform_driver via686a_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= "via686a",
+	},
+	.probe		= via686a_probe,
+	.remove		= __devexit_p(via686a_remove),
+};
+
+
+/* This is called when the module is loaded */
+static int __devinit via686a_probe(struct platform_device *pdev)
+{
+	struct via686a_data *data;
+	struct resource *res;
+	int err;
+
+	/* Reserve the ISA region */
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	if (!request_region(res->start, VIA686A_EXTENT,
+			    via686a_driver.driver.name)) {
+		dev_err(&pdev->dev, "Region 0x%lx-0x%lx already in use!\n",
+			(unsigned long)res->start, (unsigned long)res->end);
+		return -ENODEV;
+	}
+
+	if (!(data = kzalloc(sizeof(struct via686a_data), GFP_KERNEL))) {
+		err = -ENOMEM;
+		goto exit_release;
+	}
+
+	platform_set_drvdata(pdev, data);
+	data->addr = res->start;
+	data->name = "via686a";
+	mutex_init(&data->update_lock);
+
+	/* Initialize the VIA686A chip */
+	via686a_init_device(data);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&pdev->dev.kobj, &via686a_group)))
+		goto exit_free;
+
+	data->hwmon_dev = hwmon_device_register(&pdev->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove_files;
+	}
+
+	return 0;
+
+exit_remove_files:
+	sysfs_remove_group(&pdev->dev.kobj, &via686a_group);
+exit_free:
+	kfree(data);
+exit_release:
+	release_region(res->start, VIA686A_EXTENT);
+	return err;
+}
+
+static int __devexit via686a_remove(struct platform_device *pdev)
+{
+	struct via686a_data *data = platform_get_drvdata(pdev);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&pdev->dev.kobj, &via686a_group);
+
+	release_region(data->addr, VIA686A_EXTENT);
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+
+	return 0;
+}
+
+static void __devinit via686a_init_device(struct via686a_data *data)
+{
+	u8 reg;
+
+	/* Start monitoring */
+	reg = via686a_read_value(data, VIA686A_REG_CONFIG);
+	via686a_write_value(data, VIA686A_REG_CONFIG, (reg | 0x01) & 0x7F);
+
+	/* Configure temp interrupt mode for continuous-interrupt operation */
+	reg = via686a_read_value(data, VIA686A_REG_TEMP_MODE);
+	via686a_write_value(data, VIA686A_REG_TEMP_MODE,
+			    (reg & ~VIA686A_TEMP_MODE_MASK)
+			    | VIA686A_TEMP_MODE_CONTINUOUS);
+}
+
+static struct via686a_data *via686a_update_device(struct device *dev)
+{
+	struct via686a_data *data = dev_get_drvdata(dev);
+	int i;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	    || !data->valid) {
+		for (i = 0; i <= 4; i++) {
+			data->in[i] =
+			    via686a_read_value(data, VIA686A_REG_IN(i));
+			data->in_min[i] = via686a_read_value(data,
+							     VIA686A_REG_IN_MIN
+							     (i));
+			data->in_max[i] =
+			    via686a_read_value(data, VIA686A_REG_IN_MAX(i));
+		}
+		for (i = 1; i <= 2; i++) {
+			data->fan[i - 1] =
+			    via686a_read_value(data, VIA686A_REG_FAN(i));
+			data->fan_min[i - 1] = via686a_read_value(data,
+						     VIA686A_REG_FAN_MIN(i));
+		}
+		for (i = 0; i <= 2; i++) {
+			data->temp[i] = via686a_read_value(data,
+						 VIA686A_REG_TEMP[i]) << 2;
+			data->temp_over[i] =
+			    via686a_read_value(data,
+					       VIA686A_REG_TEMP_OVER[i]);
+			data->temp_hyst[i] =
+			    via686a_read_value(data,
+					       VIA686A_REG_TEMP_HYST[i]);
+		}
+		/* add in lower 2 bits
+		   temp1 uses bits 7-6 of VIA686A_REG_TEMP_LOW1
+		   temp2 uses bits 5-4 of VIA686A_REG_TEMP_LOW23
+		   temp3 uses bits 7-6 of VIA686A_REG_TEMP_LOW23
+		 */
+		data->temp[0] |= (via686a_read_value(data,
+						     VIA686A_REG_TEMP_LOW1)
+				  & 0xc0) >> 6;
+		data->temp[1] |=
+		    (via686a_read_value(data, VIA686A_REG_TEMP_LOW23) &
+		     0x30) >> 4;
+		data->temp[2] |=
+		    (via686a_read_value(data, VIA686A_REG_TEMP_LOW23) &
+		     0xc0) >> 6;
+
+		i = via686a_read_value(data, VIA686A_REG_FANDIV);
+		data->fan_div[0] = (i >> 4) & 0x03;
+		data->fan_div[1] = i >> 6;
+		data->alarms =
+		    via686a_read_value(data,
+				       VIA686A_REG_ALARM1) |
+		    (via686a_read_value(data, VIA686A_REG_ALARM2) << 8);
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static struct pci_device_id via686a_pci_ids[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4) },
+	{ 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, via686a_pci_ids);
+
+static int __devinit via686a_device_add(unsigned short address)
+{
+	struct resource res = {
+		.start	= address,
+		.end	= address + VIA686A_EXTENT - 1,
+		.name	= "via686a",
+		.flags	= IORESOURCE_IO,
+	};
+	int err;
+
+	pdev = platform_device_alloc("via686a", address);
+	if (!pdev) {
+		err = -ENOMEM;
+		printk(KERN_ERR "via686a: Device allocation failed\n");
+		goto exit;
+	}
+
+	err = platform_device_add_resources(pdev, &res, 1);
+	if (err) {
+		printk(KERN_ERR "via686a: Device resource addition failed "
+		       "(%d)\n", err);
+		goto exit_device_put;
+	}
+
+	err = platform_device_add(pdev);
+	if (err) {
+		printk(KERN_ERR "via686a: Device addition failed (%d)\n",
+		       err);
+		goto exit_device_put;
+	}
+
+	return 0;
+
+exit_device_put:
+	platform_device_put(pdev);
+exit:
+	return err;
+}
+
+static int __devinit via686a_pci_probe(struct pci_dev *dev,
+				       const struct pci_device_id *id)
+{
+	u16 address, val;
+
+	if (force_addr) {
+		address = force_addr & ~(VIA686A_EXTENT - 1);
+		dev_warn(&dev->dev, "Forcing ISA address 0x%x\n", address);
+		if (PCIBIOS_SUCCESSFUL !=
+		    pci_write_config_word(dev, VIA686A_BASE_REG, address | 1))
+			return -ENODEV;
+	}
+	if (PCIBIOS_SUCCESSFUL !=
+	    pci_read_config_word(dev, VIA686A_BASE_REG, &val))
+		return -ENODEV;
+
+	address = val & ~(VIA686A_EXTENT - 1);
+	if (address == 0) {
+		dev_err(&dev->dev, "base address not set - upgrade BIOS "
+			"or use force_addr=0xaddr\n");
+		return -ENODEV;
+	}
+
+	if (PCIBIOS_SUCCESSFUL !=
+	    pci_read_config_word(dev, VIA686A_ENABLE_REG, &val))
+		return -ENODEV;
+	if (!(val & 0x0001)) {
+		if (!force_addr) {
+			dev_warn(&dev->dev, "Sensors disabled, enable "
+				 "with force_addr=0x%x\n", address);
+			return -ENODEV;
+		}
+
+		dev_warn(&dev->dev, "Enabling sensors\n");
+		if (PCIBIOS_SUCCESSFUL !=
+		    pci_write_config_word(dev, VIA686A_ENABLE_REG,
+					  val | 0x0001))
+			return -ENODEV;
+	}
+
+	if (platform_driver_register(&via686a_driver))
+		goto exit;
+
+	/* Sets global pdev as a side effect */
+	if (via686a_device_add(address))
+		goto exit_unregister;
+
+	/* Always return failure here.  This is to allow other drivers to bind
+	 * to this pci device.  We don't really want to have control over the
+	 * pci device, we only wanted to read as few register values from it.
+	 */
+	s_bridge = pci_dev_get(dev);
+	return -ENODEV;
+
+exit_unregister:
+	platform_driver_unregister(&via686a_driver);
+exit:
+	return -ENODEV;
+}
+
+static struct pci_driver via686a_pci_driver = {
+	.name		= "via686a",
+	.id_table	= via686a_pci_ids,
+	.probe		= via686a_pci_probe,
+};
+
+static int __init sm_via686a_init(void)
+{
+	return pci_register_driver(&via686a_pci_driver);
+}
+
+static void __exit sm_via686a_exit(void)
+{
+	pci_unregister_driver(&via686a_pci_driver);
+	if (s_bridge != NULL) {
+		platform_device_unregister(pdev);
+		platform_driver_unregister(&via686a_driver);
+		pci_dev_put(s_bridge);
+		s_bridge = NULL;
+	}
+}
+
+MODULE_AUTHOR("Kyösti Mälkki <kmalkki@cc.hut.fi>, "
+	      "Mark Studebaker <mdsxyz123@yahoo.com> "
+	      "and Bob Dougherty <bobd@stanford.edu>");
+MODULE_DESCRIPTION("VIA 686A Sensor device");
+MODULE_LICENSE("GPL");
+
+module_init(sm_via686a_init);
+module_exit(sm_via686a_exit);
diff --git a/drivers/hwmon/vt1211.c b/drivers/hwmon/vt1211.c
new file mode 100644
index 0000000..12b4359
--- /dev/null
+++ b/drivers/hwmon/vt1211.c
@@ -0,0 +1,1376 @@
+/*
+ * vt1211.c - driver for the VIA VT1211 Super-I/O chip integrated hardware
+ *            monitoring features
+ * Copyright (C) 2006 Juerg Haefliger <juergh@gmail.com>
+ *
+ * This driver is based on the driver for kernel 2.4 by Mark D. Studebaker
+ * and its port to kernel 2.6 by Lars Ekman.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon-vid.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/ioport.h>
+#include <asm/io.h>
+
+static int uch_config = -1;
+module_param(uch_config, int, 0);
+MODULE_PARM_DESC(uch_config, "Initialize the universal channel configuration");
+
+static int int_mode = -1;
+module_param(int_mode, int, 0);
+MODULE_PARM_DESC(int_mode, "Force the temperature interrupt mode");
+
+static unsigned short force_id;
+module_param(force_id, ushort, 0);
+MODULE_PARM_DESC(force_id, "Override the detected device ID");
+
+static struct platform_device *pdev;
+
+#define DRVNAME "vt1211"
+
+/* ---------------------------------------------------------------------
+ * Registers
+ *
+ * The sensors are defined as follows.
+ *
+ * Sensor          Voltage Mode   Temp Mode   Notes (from the datasheet)
+ * --------        ------------   ---------   --------------------------
+ * Reading 1                      temp1       Intel thermal diode
+ * Reading 3                      temp2       Internal thermal diode
+ * UCH1/Reading2   in0            temp3       NTC type thermistor
+ * UCH2            in1            temp4       +2.5V
+ * UCH3            in2            temp5       VccP
+ * UCH4            in3            temp6       +5V
+ * UCH5            in4            temp7       +12V
+ * 3.3V            in5                        Internal VDD (+3.3V)
+ *
+ * --------------------------------------------------------------------- */
+
+/* Voltages (in) numbered 0-5 (ix) */
+#define VT1211_REG_IN(ix)		(0x21 + (ix))
+#define VT1211_REG_IN_MIN(ix)		((ix) == 0 ? 0x3e : 0x2a + 2 * (ix))
+#define VT1211_REG_IN_MAX(ix)		((ix) == 0 ? 0x3d : 0x29 + 2 * (ix))
+
+/* Temperatures (temp) numbered 0-6 (ix) */
+static u8 regtemp[]	= {0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25};
+static u8 regtempmax[]	= {0x39, 0x1d, 0x3d, 0x2b, 0x2d, 0x2f, 0x31};
+static u8 regtemphyst[]	= {0x3a, 0x1e, 0x3e, 0x2c, 0x2e, 0x30, 0x32};
+
+/* Fans numbered 0-1 (ix) */
+#define VT1211_REG_FAN(ix)		(0x29 + (ix))
+#define VT1211_REG_FAN_MIN(ix)		(0x3b + (ix))
+#define VT1211_REG_FAN_DIV		 0x47
+
+/* PWMs numbered 0-1 (ix) */
+/* Auto points numbered 0-3 (ap) */
+#define VT1211_REG_PWM(ix)		(0x60 + (ix))
+#define VT1211_REG_PWM_CLK		 0x50
+#define VT1211_REG_PWM_CTL		 0x51
+#define VT1211_REG_PWM_AUTO_TEMP(ap)	(0x55 - (ap))
+#define VT1211_REG_PWM_AUTO_PWM(ix, ap)	(0x58 + 2 * (ix) - (ap))
+
+/* Miscellaneous registers */
+#define VT1211_REG_CONFIG		0x40
+#define VT1211_REG_ALARM1		0x41
+#define VT1211_REG_ALARM2		0x42
+#define VT1211_REG_VID			0x45
+#define VT1211_REG_UCH_CONFIG		0x4a
+#define VT1211_REG_TEMP1_CONFIG		0x4b
+#define VT1211_REG_TEMP2_CONFIG		0x4c
+
+/* In, temp & fan alarm bits */
+static const u8 bitalarmin[]	= {11, 0, 1, 3, 8, 2, 9};
+static const u8 bitalarmtemp[]	= {4, 15, 11, 0, 1, 3, 8};
+static const u8 bitalarmfan[]	= {6, 7};
+
+/* ---------------------------------------------------------------------
+ * Data structures and manipulation thereof
+ * --------------------------------------------------------------------- */
+
+struct vt1211_data {
+	unsigned short addr;
+	const char *name;
+	struct device *hwmon_dev;
+
+	struct mutex update_lock;
+	char valid;			/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+
+	/* Register values */
+	u8  in[6];
+	u8  in_max[6];
+	u8  in_min[6];
+	u8  temp[7];
+	u8  temp_max[7];
+	u8  temp_hyst[7];
+	u8  fan[2];
+	u8  fan_min[2];
+	u8  fan_div[2];
+	u8  fan_ctl;
+	u8  pwm[2];
+	u8  pwm_ctl[2];
+	u8  pwm_clk;
+	u8  pwm_auto_temp[4];
+	u8  pwm_auto_pwm[2][4];
+	u8  vid;		/* Read once at init time */
+	u8  vrm;
+	u8  uch_config;		/* Read once at init time */
+	u16 alarms;
+};
+
+/* ix = [0-5] */
+#define ISVOLT(ix, uch_config)	((ix) > 4 ? 1 : \
+				 !(((uch_config) >> ((ix) + 2)) & 1))
+
+/* ix = [0-6] */
+#define ISTEMP(ix, uch_config)	((ix) < 2 ? 1 : \
+				 ((uch_config) >> (ix)) & 1)
+
+/* in5 (ix = 5) is special. It's the internal 3.3V so it's scaled in the
+   driver according to the VT1211 BIOS porting guide */
+#define IN_FROM_REG(ix, reg)	((reg) < 3 ? 0 : (ix) == 5 ? \
+				 (((reg) - 3) * 15882 + 479) / 958 : \
+				 (((reg) - 3) * 10000 + 479) / 958)
+#define IN_TO_REG(ix, val)	(SENSORS_LIMIT((ix) == 5 ? \
+				 ((val) * 958 + 7941) / 15882 + 3 : \
+				 ((val) * 958 + 5000) / 10000 + 3, 0, 255))
+
+/* temp1 (ix = 0) is an intel thermal diode which is scaled in user space.
+   temp2 (ix = 1) is the internal temp diode so it's scaled in the driver
+   according to some measurements that I took on an EPIA M10000.
+   temp3-7 are thermistor based so the driver returns the voltage measured at
+   the pin (range 0V - 2.2V). */
+#define TEMP_FROM_REG(ix, reg)	((ix) == 0 ? (reg) * 1000 : \
+				 (ix) == 1 ? (reg) < 51 ? 0 : \
+				 ((reg) - 51) * 1000 : \
+				 ((253 - (reg)) * 2200 + 105) / 210)
+#define TEMP_TO_REG(ix, val)	SENSORS_LIMIT( \
+				 ((ix) == 0 ? ((val) + 500) / 1000 : \
+				  (ix) == 1 ? ((val) + 500) / 1000 + 51 : \
+				  253 - ((val) * 210 + 1100) / 2200), 0, 255)
+
+#define DIV_FROM_REG(reg)	(1 << (reg))
+
+#define RPM_FROM_REG(reg, div)	(((reg) == 0) || ((reg) == 255) ? 0 : \
+				 1310720 / (reg) / DIV_FROM_REG(div))
+#define RPM_TO_REG(val, div)	((val) == 0 ? 255 : \
+				 SENSORS_LIMIT((1310720 / (val) / \
+				 DIV_FROM_REG(div)), 1, 254))
+
+/* ---------------------------------------------------------------------
+ * Super-I/O constants and functions
+ * --------------------------------------------------------------------- */
+
+/* Configuration index port registers
+ * The vt1211 can live at 2 different addresses so we need to probe both */
+#define SIO_REG_CIP1		0x2e
+#define SIO_REG_CIP2		0x4e
+
+/* Configuration registers */
+#define SIO_VT1211_LDN		0x07	/* logical device number */
+#define SIO_VT1211_DEVID	0x20	/* device ID */
+#define SIO_VT1211_DEVREV	0x21	/* device revision */
+#define SIO_VT1211_ACTIVE	0x30	/* HW monitor active */
+#define SIO_VT1211_BADDR	0x60	/* base I/O address */
+#define SIO_VT1211_ID		0x3c	/* VT1211 device ID */
+
+/* VT1211 logical device numbers */
+#define SIO_VT1211_LDN_HWMON	0x0b	/* HW monitor */
+
+static inline void superio_outb(int sio_cip, int reg, int val)
+{
+	outb(reg, sio_cip);
+	outb(val, sio_cip + 1);
+}
+
+static inline int superio_inb(int sio_cip, int reg)
+{
+	outb(reg, sio_cip);
+	return inb(sio_cip + 1);
+}
+
+static inline void superio_select(int sio_cip, int ldn)
+{
+	outb(SIO_VT1211_LDN, sio_cip);
+	outb(ldn, sio_cip + 1);
+}
+
+static inline void superio_enter(int sio_cip)
+{
+	outb(0x87, sio_cip);
+	outb(0x87, sio_cip);
+}
+
+static inline void superio_exit(int sio_cip)
+{
+	outb(0xaa, sio_cip);
+}
+
+/* ---------------------------------------------------------------------
+ * Device I/O access
+ * --------------------------------------------------------------------- */
+
+static inline u8 vt1211_read8(struct vt1211_data *data, u8 reg)
+{
+	return inb(data->addr + reg);
+}
+
+static inline void vt1211_write8(struct vt1211_data *data, u8 reg, u8 val)
+{
+	outb(val, data->addr + reg);
+}
+
+static struct vt1211_data *vt1211_update_device(struct device *dev)
+{
+	struct vt1211_data *data = dev_get_drvdata(dev);
+	int ix, val;
+
+	mutex_lock(&data->update_lock);
+
+	/* registers cache is refreshed after 1 second */
+	if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
+		/* read VID */
+		data->vid = vt1211_read8(data, VT1211_REG_VID) & 0x1f;
+
+		/* voltage (in) registers */
+		for (ix = 0; ix < ARRAY_SIZE(data->in); ix++) {
+			if (ISVOLT(ix, data->uch_config)) {
+				data->in[ix] = vt1211_read8(data,
+						VT1211_REG_IN(ix));
+				data->in_min[ix] = vt1211_read8(data,
+						VT1211_REG_IN_MIN(ix));
+				data->in_max[ix] = vt1211_read8(data,
+						VT1211_REG_IN_MAX(ix));
+			}
+		}
+
+		/* temp registers */
+		for (ix = 0; ix < ARRAY_SIZE(data->temp); ix++) {
+			if (ISTEMP(ix, data->uch_config)) {
+				data->temp[ix] = vt1211_read8(data,
+						regtemp[ix]);
+				data->temp_max[ix] = vt1211_read8(data,
+						regtempmax[ix]);
+				data->temp_hyst[ix] = vt1211_read8(data,
+						regtemphyst[ix]);
+			}
+		}
+
+		/* fan & pwm registers */
+		for (ix = 0; ix < ARRAY_SIZE(data->fan); ix++) {
+			data->fan[ix] = vt1211_read8(data,
+						VT1211_REG_FAN(ix));
+			data->fan_min[ix] = vt1211_read8(data,
+						VT1211_REG_FAN_MIN(ix));
+			data->pwm[ix] = vt1211_read8(data,
+						VT1211_REG_PWM(ix));
+		}
+		val = vt1211_read8(data, VT1211_REG_FAN_DIV);
+		data->fan_div[0] = (val >> 4) & 3;
+		data->fan_div[1] = (val >> 6) & 3;
+		data->fan_ctl = val & 0xf;
+
+		val = vt1211_read8(data, VT1211_REG_PWM_CTL);
+		data->pwm_ctl[0] = val & 0xf;
+		data->pwm_ctl[1] = (val >> 4) & 0xf;
+
+		data->pwm_clk = vt1211_read8(data, VT1211_REG_PWM_CLK);
+
+		/* pwm & temp auto point registers */
+		data->pwm_auto_pwm[0][1] = vt1211_read8(data,
+						VT1211_REG_PWM_AUTO_PWM(0, 1));
+		data->pwm_auto_pwm[0][2] = vt1211_read8(data,
+						VT1211_REG_PWM_AUTO_PWM(0, 2));
+		data->pwm_auto_pwm[1][1] = vt1211_read8(data,
+						VT1211_REG_PWM_AUTO_PWM(1, 1));
+		data->pwm_auto_pwm[1][2] = vt1211_read8(data,
+						VT1211_REG_PWM_AUTO_PWM(1, 2));
+		for (ix = 0; ix < ARRAY_SIZE(data->pwm_auto_temp); ix++) {
+			data->pwm_auto_temp[ix] = vt1211_read8(data,
+						VT1211_REG_PWM_AUTO_TEMP(ix));
+		}
+
+		/* alarm registers */
+		data->alarms = (vt1211_read8(data, VT1211_REG_ALARM2) << 8) |
+				vt1211_read8(data, VT1211_REG_ALARM1);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+/* ---------------------------------------------------------------------
+ * Voltage sysfs interfaces
+ * ix = [0-5]
+ * --------------------------------------------------------------------- */
+
+#define SHOW_IN_INPUT	0
+#define SHOW_SET_IN_MIN	1
+#define SHOW_SET_IN_MAX	2
+#define SHOW_IN_ALARM	3
+
+static ssize_t show_in(struct device *dev, struct device_attribute *attr,
+		       char *buf)
+{
+	struct vt1211_data *data = vt1211_update_device(dev);
+	struct sensor_device_attribute_2 *sensor_attr_2 =
+						to_sensor_dev_attr_2(attr);
+	int ix = sensor_attr_2->index;
+	int fn = sensor_attr_2->nr;
+	int res;
+
+	switch (fn) {
+	case SHOW_IN_INPUT:
+		res = IN_FROM_REG(ix, data->in[ix]);
+		break;
+	case SHOW_SET_IN_MIN:
+		res = IN_FROM_REG(ix, data->in_min[ix]);
+		break;
+	case SHOW_SET_IN_MAX:
+		res = IN_FROM_REG(ix, data->in_max[ix]);
+		break;
+	case SHOW_IN_ALARM:
+		res = (data->alarms >> bitalarmin[ix]) & 1;
+		break;
+	default:
+		res = 0;
+		dev_dbg(dev, "Unknown attr fetch (%d)\n", fn);
+	}
+
+	return sprintf(buf, "%d\n", res);
+}
+
+static ssize_t set_in(struct device *dev, struct device_attribute *attr,
+		      const char *buf, size_t count)
+{
+	struct vt1211_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute_2 *sensor_attr_2 =
+						to_sensor_dev_attr_2(attr);
+	int ix = sensor_attr_2->index;
+	int fn = sensor_attr_2->nr;
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	switch (fn) {
+	case SHOW_SET_IN_MIN:
+		data->in_min[ix] = IN_TO_REG(ix, val);
+		vt1211_write8(data, VT1211_REG_IN_MIN(ix), data->in_min[ix]);
+		break;
+	case SHOW_SET_IN_MAX:
+		data->in_max[ix] = IN_TO_REG(ix, val);
+		vt1211_write8(data, VT1211_REG_IN_MAX(ix), data->in_max[ix]);
+		break;
+	default:
+		dev_dbg(dev, "Unknown attr fetch (%d)\n", fn);
+	}
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/* ---------------------------------------------------------------------
+ * Temperature sysfs interfaces
+ * ix = [0-6]
+ * --------------------------------------------------------------------- */
+
+#define SHOW_TEMP_INPUT		0
+#define SHOW_SET_TEMP_MAX	1
+#define SHOW_SET_TEMP_MAX_HYST	2
+#define SHOW_TEMP_ALARM		3
+
+static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
+			 char *buf)
+{
+	struct vt1211_data *data = vt1211_update_device(dev);
+	struct sensor_device_attribute_2 *sensor_attr_2 =
+						to_sensor_dev_attr_2(attr);
+	int ix = sensor_attr_2->index;
+	int fn = sensor_attr_2->nr;
+	int res;
+
+	switch (fn) {
+	case SHOW_TEMP_INPUT:
+		res = TEMP_FROM_REG(ix, data->temp[ix]);
+		break;
+	case SHOW_SET_TEMP_MAX:
+		res = TEMP_FROM_REG(ix, data->temp_max[ix]);
+		break;
+	case SHOW_SET_TEMP_MAX_HYST:
+		res = TEMP_FROM_REG(ix, data->temp_hyst[ix]);
+		break;
+	case SHOW_TEMP_ALARM:
+		res = (data->alarms >> bitalarmtemp[ix]) & 1;
+		break;
+	default:
+		res = 0;
+		dev_dbg(dev, "Unknown attr fetch (%d)\n", fn);
+	}
+
+	return sprintf(buf, "%d\n", res);
+}
+
+static ssize_t set_temp(struct device *dev, struct device_attribute *attr,
+			const char *buf, size_t count)
+{
+	struct vt1211_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute_2 *sensor_attr_2 =
+						to_sensor_dev_attr_2(attr);
+	int ix = sensor_attr_2->index;
+	int fn = sensor_attr_2->nr;
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	switch (fn) {
+	case SHOW_SET_TEMP_MAX:
+		data->temp_max[ix] = TEMP_TO_REG(ix, val);
+		vt1211_write8(data, regtempmax[ix],
+			      data->temp_max[ix]);
+		break;
+	case SHOW_SET_TEMP_MAX_HYST:
+		data->temp_hyst[ix] = TEMP_TO_REG(ix, val);
+		vt1211_write8(data, regtemphyst[ix],
+			      data->temp_hyst[ix]);
+		break;
+	default:
+		dev_dbg(dev, "Unknown attr fetch (%d)\n", fn);
+	}
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/* ---------------------------------------------------------------------
+ * Fan sysfs interfaces
+ * ix = [0-1]
+ * --------------------------------------------------------------------- */
+
+#define SHOW_FAN_INPUT		0
+#define SHOW_SET_FAN_MIN	1
+#define SHOW_SET_FAN_DIV	2
+#define SHOW_FAN_ALARM		3
+
+static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	struct vt1211_data *data = vt1211_update_device(dev);
+	struct sensor_device_attribute_2 *sensor_attr_2 =
+						to_sensor_dev_attr_2(attr);
+	int ix = sensor_attr_2->index;
+	int fn = sensor_attr_2->nr;
+	int res;
+
+	switch (fn) {
+	case SHOW_FAN_INPUT:
+		res = RPM_FROM_REG(data->fan[ix], data->fan_div[ix]);
+		break;
+	case SHOW_SET_FAN_MIN:
+		res = RPM_FROM_REG(data->fan_min[ix], data->fan_div[ix]);
+		break;
+	case SHOW_SET_FAN_DIV:
+		res = DIV_FROM_REG(data->fan_div[ix]);
+		break;
+	case SHOW_FAN_ALARM:
+		res = (data->alarms >> bitalarmfan[ix]) & 1;
+		break;
+	default:
+		res = 0;
+		dev_dbg(dev, "Unknown attr fetch (%d)\n", fn);
+	}
+
+	return sprintf(buf, "%d\n", res);
+}
+
+static ssize_t set_fan(struct device *dev, struct device_attribute *attr,
+		       const char *buf, size_t count)
+{
+	struct vt1211_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute_2 *sensor_attr_2 =
+						to_sensor_dev_attr_2(attr);
+	int ix = sensor_attr_2->index;
+	int fn = sensor_attr_2->nr;
+	long val = simple_strtol(buf, NULL, 10);
+	int reg;
+
+	mutex_lock(&data->update_lock);
+
+	/* sync the data cache */
+	reg = vt1211_read8(data, VT1211_REG_FAN_DIV);
+	data->fan_div[0] = (reg >> 4) & 3;
+	data->fan_div[1] = (reg >> 6) & 3;
+	data->fan_ctl = reg & 0xf;
+
+	switch (fn) {
+	case SHOW_SET_FAN_MIN:
+		data->fan_min[ix] = RPM_TO_REG(val, data->fan_div[ix]);
+		vt1211_write8(data, VT1211_REG_FAN_MIN(ix),
+			      data->fan_min[ix]);
+		break;
+	case SHOW_SET_FAN_DIV:
+		switch (val) {
+			case 1: data->fan_div[ix] = 0; break;
+			case 2: data->fan_div[ix] = 1; break;
+			case 4: data->fan_div[ix] = 2; break;
+			case 8: data->fan_div[ix] = 3; break;
+			default:
+				count = -EINVAL;
+				dev_warn(dev, "fan div value %ld not "
+					 "supported. Choose one of 1, 2, "
+					 "4, or 8.\n", val);
+				goto EXIT;
+		}
+		vt1211_write8(data, VT1211_REG_FAN_DIV,
+			      ((data->fan_div[1] << 6) |
+			       (data->fan_div[0] << 4) |
+				data->fan_ctl));
+		break;
+	default:
+		dev_dbg(dev, "Unknown attr fetch (%d)\n", fn);
+	}
+
+EXIT:
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+/* ---------------------------------------------------------------------
+ * PWM sysfs interfaces
+ * ix = [0-1]
+ * --------------------------------------------------------------------- */
+
+#define SHOW_PWM			0
+#define SHOW_SET_PWM_ENABLE		1
+#define SHOW_SET_PWM_FREQ		2
+#define SHOW_SET_PWM_AUTO_CHANNELS_TEMP	3
+
+static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	struct vt1211_data *data = vt1211_update_device(dev);
+	struct sensor_device_attribute_2 *sensor_attr_2 =
+						to_sensor_dev_attr_2(attr);
+	int ix = sensor_attr_2->index;
+	int fn = sensor_attr_2->nr;
+	int res;
+
+	switch (fn) {
+	case SHOW_PWM:
+		res = data->pwm[ix];
+		break;
+	case SHOW_SET_PWM_ENABLE:
+		res = ((data->pwm_ctl[ix] >> 3) & 1) ? 2 : 0;
+		break;
+	case SHOW_SET_PWM_FREQ:
+		res = 90000 >> (data->pwm_clk & 7);
+		break;
+	case SHOW_SET_PWM_AUTO_CHANNELS_TEMP:
+		res = (data->pwm_ctl[ix] & 7) + 1;
+		break;
+	default:
+		res = 0;
+		dev_dbg(dev, "Unknown attr fetch (%d)\n", fn);
+	}
+
+	return sprintf(buf, "%d\n", res);
+}
+
+static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
+		       const char *buf, size_t count)
+{
+	struct vt1211_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute_2 *sensor_attr_2 =
+						to_sensor_dev_attr_2(attr);
+	int ix = sensor_attr_2->index;
+	int fn = sensor_attr_2->nr;
+	long val = simple_strtol(buf, NULL, 10);
+	int tmp, reg;
+
+	mutex_lock(&data->update_lock);
+
+	switch (fn) {
+	case SHOW_SET_PWM_ENABLE:
+		/* sync the data cache */
+		reg = vt1211_read8(data, VT1211_REG_FAN_DIV);
+		data->fan_div[0] = (reg >> 4) & 3;
+		data->fan_div[1] = (reg >> 6) & 3;
+		data->fan_ctl = reg & 0xf;
+		reg = vt1211_read8(data, VT1211_REG_PWM_CTL);
+		data->pwm_ctl[0] = reg & 0xf;
+		data->pwm_ctl[1] = (reg >> 4) & 0xf;
+		switch (val) {
+		case 0:
+			data->pwm_ctl[ix] &= 7;
+			/* disable SmartGuardian if both PWM outputs are
+			 * disabled */
+			if ((data->pwm_ctl[ix ^ 1] & 1) == 0) {
+				data->fan_ctl &= 0xe;
+			}
+			break;
+		case 2:
+			data->pwm_ctl[ix] |= 8;
+			data->fan_ctl |= 1;
+			break;
+		default:
+			count = -EINVAL;
+			dev_warn(dev, "pwm mode %ld not supported. "
+				 "Choose one of 0 or 2.\n", val);
+			goto EXIT;
+		}
+		vt1211_write8(data, VT1211_REG_PWM_CTL,
+			      ((data->pwm_ctl[1] << 4) |
+				data->pwm_ctl[0]));
+		vt1211_write8(data, VT1211_REG_FAN_DIV,
+			      ((data->fan_div[1] << 6) |
+			       (data->fan_div[0] << 4) |
+				data->fan_ctl));
+		break;
+	case SHOW_SET_PWM_FREQ:
+		val = 135000 / SENSORS_LIMIT(val, 135000 >> 7, 135000);
+		/* calculate tmp = log2(val) */
+		tmp = 0;
+		for (val >>= 1; val > 0; val >>= 1) {
+			tmp++;
+		}
+		/* sync the data cache */
+		reg = vt1211_read8(data, VT1211_REG_PWM_CLK);
+		data->pwm_clk = (reg & 0xf8) | tmp;
+		vt1211_write8(data, VT1211_REG_PWM_CLK, data->pwm_clk);
+		break;
+	case SHOW_SET_PWM_AUTO_CHANNELS_TEMP:
+		if ((val < 1) || (val > 7)) {
+			count = -EINVAL;
+			dev_warn(dev, "temp channel %ld not supported. "
+				 "Choose a value between 1 and 7.\n", val);
+			goto EXIT;
+		}
+		if (!ISTEMP(val - 1, data->uch_config)) {
+			count = -EINVAL;
+			dev_warn(dev, "temp channel %ld is not available.\n",
+				 val);
+			goto EXIT;
+		}
+		/* sync the data cache */
+		reg = vt1211_read8(data, VT1211_REG_PWM_CTL);
+		data->pwm_ctl[0] = reg & 0xf;
+		data->pwm_ctl[1] = (reg >> 4) & 0xf;
+		data->pwm_ctl[ix] = (data->pwm_ctl[ix] & 8) | (val - 1);
+		vt1211_write8(data, VT1211_REG_PWM_CTL,
+			      ((data->pwm_ctl[1] << 4) | data->pwm_ctl[0]));
+		break;
+	default:
+		dev_dbg(dev, "Unknown attr fetch (%d)\n", fn);
+	}
+
+EXIT:
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+/* ---------------------------------------------------------------------
+ * PWM auto point definitions
+ * ix = [0-1]
+ * ap = [0-3]
+ * --------------------------------------------------------------------- */
+
+/*
+ * pwm[ix+1]_auto_point[ap+1]_temp mapping table:
+ * Note that there is only a single set of temp auto points that controls both
+ * PWM controllers. We still create 2 sets of sysfs files to make it look
+ * more consistent even though they map to the same registers.
+ *
+ * ix ap : description
+ * -------------------
+ * 0  0  : pwm1/2 off temperature        (pwm_auto_temp[0])
+ * 0  1  : pwm1/2 low speed temperature  (pwm_auto_temp[1])
+ * 0  2  : pwm1/2 high speed temperature (pwm_auto_temp[2])
+ * 0  3  : pwm1/2 full speed temperature (pwm_auto_temp[3])
+ * 1  0  : pwm1/2 off temperature        (pwm_auto_temp[0])
+ * 1  1  : pwm1/2 low speed temperature  (pwm_auto_temp[1])
+ * 1  2  : pwm1/2 high speed temperature (pwm_auto_temp[2])
+ * 1  3  : pwm1/2 full speed temperature (pwm_auto_temp[3])
+ */
+
+static ssize_t show_pwm_auto_point_temp(struct device *dev,
+					struct device_attribute *attr,
+					char *buf)
+{
+	struct vt1211_data *data = vt1211_update_device(dev);
+	struct sensor_device_attribute_2 *sensor_attr_2 =
+						to_sensor_dev_attr_2(attr);
+	int ix = sensor_attr_2->index;
+	int ap = sensor_attr_2->nr;
+
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->pwm_ctl[ix] & 7,
+		       data->pwm_auto_temp[ap]));
+}
+
+static ssize_t set_pwm_auto_point_temp(struct device *dev,
+				       struct device_attribute *attr,
+				       const char *buf, size_t count)
+{
+	struct vt1211_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute_2 *sensor_attr_2 =
+						to_sensor_dev_attr_2(attr);
+	int ix = sensor_attr_2->index;
+	int ap = sensor_attr_2->nr;
+	long val = simple_strtol(buf, NULL, 10);
+	int reg;
+
+	mutex_lock(&data->update_lock);
+
+	/* sync the data cache */
+	reg = vt1211_read8(data, VT1211_REG_PWM_CTL);
+	data->pwm_ctl[0] = reg & 0xf;
+	data->pwm_ctl[1] = (reg >> 4) & 0xf;
+
+	data->pwm_auto_temp[ap] = TEMP_TO_REG(data->pwm_ctl[ix] & 7, val);
+	vt1211_write8(data, VT1211_REG_PWM_AUTO_TEMP(ap),
+		      data->pwm_auto_temp[ap]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/*
+ * pwm[ix+1]_auto_point[ap+1]_pwm mapping table:
+ * Note that the PWM auto points 0 & 3 are hard-wired in the VT1211 and can't
+ * be changed.
+ *
+ * ix ap : description
+ * -------------------
+ * 0  0  : pwm1 off                   (pwm_auto_pwm[0][0], hard-wired to 0)
+ * 0  1  : pwm1 low speed duty cycle  (pwm_auto_pwm[0][1])
+ * 0  2  : pwm1 high speed duty cycle (pwm_auto_pwm[0][2])
+ * 0  3  : pwm1 full speed            (pwm_auto_pwm[0][3], hard-wired to 255)
+ * 1  0  : pwm2 off                   (pwm_auto_pwm[1][0], hard-wired to 0)
+ * 1  1  : pwm2 low speed duty cycle  (pwm_auto_pwm[1][1])
+ * 1  2  : pwm2 high speed duty cycle (pwm_auto_pwm[1][2])
+ * 1  3  : pwm2 full speed            (pwm_auto_pwm[1][3], hard-wired to 255)
+*/
+
+static ssize_t show_pwm_auto_point_pwm(struct device *dev,
+				       struct device_attribute *attr,
+				       char *buf)
+{
+	struct vt1211_data *data = vt1211_update_device(dev);
+	struct sensor_device_attribute_2 *sensor_attr_2 =
+						to_sensor_dev_attr_2(attr);
+	int ix = sensor_attr_2->index;
+	int ap = sensor_attr_2->nr;
+
+	return sprintf(buf, "%d\n", data->pwm_auto_pwm[ix][ap]);
+}
+
+static ssize_t set_pwm_auto_point_pwm(struct device *dev,
+				      struct device_attribute *attr,
+				      const char *buf, size_t count)
+{
+	struct vt1211_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute_2 *sensor_attr_2 =
+						to_sensor_dev_attr_2(attr);
+	int ix = sensor_attr_2->index;
+	int ap = sensor_attr_2->nr;
+	long val = simple_strtol(buf, NULL, 10);
+
+	if ((val < 0) || (val > 255)) {
+		dev_err(dev, "pwm value %ld is out of range. "
+			"Choose a value between 0 and 255.\n" , val);
+		return -EINVAL;
+	}
+
+	mutex_lock(&data->update_lock);
+	data->pwm_auto_pwm[ix][ap] = val;
+	vt1211_write8(data, VT1211_REG_PWM_AUTO_PWM(ix, ap),
+		      data->pwm_auto_pwm[ix][ap]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/* ---------------------------------------------------------------------
+ * Miscellaneous sysfs interfaces (VRM, VID, name, and (legacy) alarms)
+ * --------------------------------------------------------------------- */
+
+static ssize_t show_vrm(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	struct vt1211_data *data = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%d\n", data->vrm);
+}
+
+static ssize_t set_vrm(struct device *dev, struct device_attribute *attr,
+		       const char *buf, size_t count)
+{
+	struct vt1211_data *data = dev_get_drvdata(dev);
+	long val = simple_strtol(buf, NULL, 10);
+
+	data->vrm = val;
+
+	return count;
+}
+
+static ssize_t show_vid(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	struct vt1211_data *data = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
+}
+
+static ssize_t show_name(struct device *dev,
+			 struct device_attribute *attr, char *buf)
+{
+	struct vt1211_data *data = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%s\n", data->name);
+}
+
+static ssize_t show_alarms(struct device *dev,
+			   struct device_attribute *attr, char *buf)
+{
+	struct vt1211_data *data = vt1211_update_device(dev);
+
+	return sprintf(buf, "%d\n", data->alarms);
+}
+
+/* ---------------------------------------------------------------------
+ * Device attribute structs
+ * --------------------------------------------------------------------- */
+
+#define SENSOR_ATTR_IN_INPUT(ix) \
+	SENSOR_ATTR_2(in##ix##_input, S_IRUGO, \
+		show_in, NULL, SHOW_IN_INPUT, ix)
+
+static struct sensor_device_attribute_2 vt1211_sysfs_in_input[] = {
+	SENSOR_ATTR_IN_INPUT(0),
+	SENSOR_ATTR_IN_INPUT(1),
+	SENSOR_ATTR_IN_INPUT(2),
+	SENSOR_ATTR_IN_INPUT(3),
+	SENSOR_ATTR_IN_INPUT(4),
+	SENSOR_ATTR_IN_INPUT(5),
+};
+
+#define SENSOR_ATTR_IN_MIN(ix) \
+	SENSOR_ATTR_2(in##ix##_min, S_IRUGO | S_IWUSR, \
+		show_in, set_in, SHOW_SET_IN_MIN, ix)
+
+static struct sensor_device_attribute_2 vt1211_sysfs_in_min[] = {
+	SENSOR_ATTR_IN_MIN(0),
+	SENSOR_ATTR_IN_MIN(1),
+	SENSOR_ATTR_IN_MIN(2),
+	SENSOR_ATTR_IN_MIN(3),
+	SENSOR_ATTR_IN_MIN(4),
+	SENSOR_ATTR_IN_MIN(5),
+};
+
+#define SENSOR_ATTR_IN_MAX(ix) \
+	SENSOR_ATTR_2(in##ix##_max, S_IRUGO | S_IWUSR, \
+		show_in, set_in, SHOW_SET_IN_MAX, ix)
+
+static struct sensor_device_attribute_2 vt1211_sysfs_in_max[] = {
+	SENSOR_ATTR_IN_MAX(0),
+	SENSOR_ATTR_IN_MAX(1),
+	SENSOR_ATTR_IN_MAX(2),
+	SENSOR_ATTR_IN_MAX(3),
+	SENSOR_ATTR_IN_MAX(4),
+	SENSOR_ATTR_IN_MAX(5),
+};
+
+#define SENSOR_ATTR_IN_ALARM(ix) \
+	SENSOR_ATTR_2(in##ix##_alarm, S_IRUGO, \
+		show_in, NULL, SHOW_IN_ALARM, ix)
+
+static struct sensor_device_attribute_2 vt1211_sysfs_in_alarm[] = {
+	SENSOR_ATTR_IN_ALARM(0),
+	SENSOR_ATTR_IN_ALARM(1),
+	SENSOR_ATTR_IN_ALARM(2),
+	SENSOR_ATTR_IN_ALARM(3),
+	SENSOR_ATTR_IN_ALARM(4),
+	SENSOR_ATTR_IN_ALARM(5),
+};
+
+#define SENSOR_ATTR_TEMP_INPUT(ix) \
+	SENSOR_ATTR_2(temp##ix##_input, S_IRUGO, \
+		show_temp, NULL, SHOW_TEMP_INPUT, ix-1)
+
+static struct sensor_device_attribute_2 vt1211_sysfs_temp_input[] = {
+	SENSOR_ATTR_TEMP_INPUT(1),
+	SENSOR_ATTR_TEMP_INPUT(2),
+	SENSOR_ATTR_TEMP_INPUT(3),
+	SENSOR_ATTR_TEMP_INPUT(4),
+	SENSOR_ATTR_TEMP_INPUT(5),
+	SENSOR_ATTR_TEMP_INPUT(6),
+	SENSOR_ATTR_TEMP_INPUT(7),
+};
+
+#define SENSOR_ATTR_TEMP_MAX(ix) \
+	SENSOR_ATTR_2(temp##ix##_max, S_IRUGO | S_IWUSR, \
+		show_temp, set_temp, SHOW_SET_TEMP_MAX, ix-1)
+
+static struct sensor_device_attribute_2 vt1211_sysfs_temp_max[] = {
+	SENSOR_ATTR_TEMP_MAX(1),
+	SENSOR_ATTR_TEMP_MAX(2),
+	SENSOR_ATTR_TEMP_MAX(3),
+	SENSOR_ATTR_TEMP_MAX(4),
+	SENSOR_ATTR_TEMP_MAX(5),
+	SENSOR_ATTR_TEMP_MAX(6),
+	SENSOR_ATTR_TEMP_MAX(7),
+};
+
+#define SENSOR_ATTR_TEMP_MAX_HYST(ix) \
+	SENSOR_ATTR_2(temp##ix##_max_hyst, S_IRUGO | S_IWUSR, \
+		show_temp, set_temp, SHOW_SET_TEMP_MAX_HYST, ix-1)
+
+static struct sensor_device_attribute_2 vt1211_sysfs_temp_max_hyst[] = {
+	SENSOR_ATTR_TEMP_MAX_HYST(1),
+	SENSOR_ATTR_TEMP_MAX_HYST(2),
+	SENSOR_ATTR_TEMP_MAX_HYST(3),
+	SENSOR_ATTR_TEMP_MAX_HYST(4),
+	SENSOR_ATTR_TEMP_MAX_HYST(5),
+	SENSOR_ATTR_TEMP_MAX_HYST(6),
+	SENSOR_ATTR_TEMP_MAX_HYST(7),
+};
+
+#define SENSOR_ATTR_TEMP_ALARM(ix) \
+	SENSOR_ATTR_2(temp##ix##_alarm, S_IRUGO, \
+		show_temp, NULL, SHOW_TEMP_ALARM, ix-1)
+
+static struct sensor_device_attribute_2 vt1211_sysfs_temp_alarm[] = {
+	SENSOR_ATTR_TEMP_ALARM(1),
+	SENSOR_ATTR_TEMP_ALARM(2),
+	SENSOR_ATTR_TEMP_ALARM(3),
+	SENSOR_ATTR_TEMP_ALARM(4),
+	SENSOR_ATTR_TEMP_ALARM(5),
+	SENSOR_ATTR_TEMP_ALARM(6),
+	SENSOR_ATTR_TEMP_ALARM(7),
+};
+
+#define SENSOR_ATTR_FAN(ix) \
+	SENSOR_ATTR_2(fan##ix##_input, S_IRUGO, \
+		show_fan, NULL, SHOW_FAN_INPUT, ix-1), \
+	SENSOR_ATTR_2(fan##ix##_min, S_IRUGO | S_IWUSR, \
+		show_fan, set_fan, SHOW_SET_FAN_MIN, ix-1), \
+	SENSOR_ATTR_2(fan##ix##_div, S_IRUGO | S_IWUSR, \
+		show_fan, set_fan, SHOW_SET_FAN_DIV, ix-1), \
+	SENSOR_ATTR_2(fan##ix##_alarm, S_IRUGO, \
+		show_fan, NULL, SHOW_FAN_ALARM, ix-1)
+
+#define SENSOR_ATTR_PWM(ix) \
+	SENSOR_ATTR_2(pwm##ix, S_IRUGO, \
+		show_pwm, NULL, SHOW_PWM, ix-1), \
+	SENSOR_ATTR_2(pwm##ix##_enable, S_IRUGO | S_IWUSR, \
+		show_pwm, set_pwm, SHOW_SET_PWM_ENABLE, ix-1), \
+	SENSOR_ATTR_2(pwm##ix##_auto_channels_temp, S_IRUGO | S_IWUSR, \
+		show_pwm, set_pwm, SHOW_SET_PWM_AUTO_CHANNELS_TEMP, ix-1)
+
+#define SENSOR_ATTR_PWM_FREQ(ix) \
+	SENSOR_ATTR_2(pwm##ix##_freq, S_IRUGO | S_IWUSR, \
+		show_pwm, set_pwm, SHOW_SET_PWM_FREQ, ix-1)
+
+#define SENSOR_ATTR_PWM_FREQ_RO(ix) \
+	SENSOR_ATTR_2(pwm##ix##_freq, S_IRUGO, \
+		show_pwm, NULL, SHOW_SET_PWM_FREQ, ix-1)
+
+#define SENSOR_ATTR_PWM_AUTO_POINT_TEMP(ix, ap) \
+	SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_temp, S_IRUGO | S_IWUSR, \
+		show_pwm_auto_point_temp, set_pwm_auto_point_temp, \
+		ap-1, ix-1)
+
+#define SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(ix, ap) \
+	SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_temp, S_IRUGO, \
+		show_pwm_auto_point_temp, NULL, \
+		ap-1, ix-1)
+
+#define SENSOR_ATTR_PWM_AUTO_POINT_PWM(ix, ap) \
+	SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_pwm, S_IRUGO | S_IWUSR, \
+		show_pwm_auto_point_pwm, set_pwm_auto_point_pwm, \
+		ap-1, ix-1)
+
+#define SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(ix, ap) \
+	SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_pwm, S_IRUGO, \
+		show_pwm_auto_point_pwm, NULL, \
+		ap-1, ix-1)
+
+static struct sensor_device_attribute_2 vt1211_sysfs_fan_pwm[] = {
+	SENSOR_ATTR_FAN(1),
+	SENSOR_ATTR_FAN(2),
+	SENSOR_ATTR_PWM(1),
+	SENSOR_ATTR_PWM(2),
+	SENSOR_ATTR_PWM_FREQ(1),
+	SENSOR_ATTR_PWM_FREQ_RO(2),
+	SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 1),
+	SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 2),
+	SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 3),
+	SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 4),
+	SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 1),
+	SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 2),
+	SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 3),
+	SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 4),
+	SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(1, 1),
+	SENSOR_ATTR_PWM_AUTO_POINT_PWM(1, 2),
+	SENSOR_ATTR_PWM_AUTO_POINT_PWM(1, 3),
+	SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(1, 4),
+	SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(2, 1),
+	SENSOR_ATTR_PWM_AUTO_POINT_PWM(2, 2),
+	SENSOR_ATTR_PWM_AUTO_POINT_PWM(2, 3),
+	SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(2, 4),
+};
+
+static struct device_attribute vt1211_sysfs_misc[] = {
+	__ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm),
+	__ATTR(cpu0_vid, S_IRUGO, show_vid, NULL),
+	__ATTR(name, S_IRUGO, show_name, NULL),
+	__ATTR(alarms, S_IRUGO, show_alarms, NULL),
+};
+
+/* ---------------------------------------------------------------------
+ * Device registration and initialization
+ * --------------------------------------------------------------------- */
+
+static void __devinit vt1211_init_device(struct vt1211_data *data)
+{
+	/* set VRM */
+	data->vrm = vid_which_vrm();
+
+	/* Read (and initialize) UCH config */
+	data->uch_config = vt1211_read8(data, VT1211_REG_UCH_CONFIG);
+	if (uch_config > -1) {
+		data->uch_config = (data->uch_config & 0x83) |
+				   (uch_config << 2);
+		vt1211_write8(data, VT1211_REG_UCH_CONFIG, data->uch_config);
+	}
+
+	/* Initialize the interrupt mode (if request at module load time).
+	 * The VT1211 implements 3 different modes for clearing interrupts:
+	 * 0: Clear INT when status register is read. Regenerate INT as long
+	 *    as temp stays above hysteresis limit.
+	 * 1: Clear INT when status register is read. DON'T regenerate INT
+	 *    until temp falls below hysteresis limit and exceeds hot limit
+	 *    again.
+	 * 2: Clear INT when temp falls below max limit.
+	 *
+	 * The driver only allows to force mode 0 since that's the only one
+	 * that makes sense for 'sensors' */
+	if (int_mode == 0) {
+		vt1211_write8(data, VT1211_REG_TEMP1_CONFIG, 0);
+		vt1211_write8(data, VT1211_REG_TEMP2_CONFIG, 0);
+	}
+
+	/* Fill in some hard wired values into our data struct */
+	data->pwm_auto_pwm[0][3] = 255;
+	data->pwm_auto_pwm[1][3] = 255;
+}
+
+static void vt1211_remove_sysfs(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_in_input); i++) {
+		device_remove_file(dev,
+			&vt1211_sysfs_in_input[i].dev_attr);
+		device_remove_file(dev,
+			&vt1211_sysfs_in_min[i].dev_attr);
+		device_remove_file(dev,
+			&vt1211_sysfs_in_max[i].dev_attr);
+		device_remove_file(dev,
+			&vt1211_sysfs_in_alarm[i].dev_attr);
+	}
+	for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_temp_input); i++) {
+		device_remove_file(dev,
+			&vt1211_sysfs_temp_input[i].dev_attr);
+		device_remove_file(dev,
+			&vt1211_sysfs_temp_max[i].dev_attr);
+		device_remove_file(dev,
+			&vt1211_sysfs_temp_max_hyst[i].dev_attr);
+		device_remove_file(dev,
+			&vt1211_sysfs_temp_alarm[i].dev_attr);
+	}
+	for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_fan_pwm); i++) {
+		device_remove_file(dev,
+			&vt1211_sysfs_fan_pwm[i].dev_attr);
+	}
+	for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_misc); i++) {
+		device_remove_file(dev, &vt1211_sysfs_misc[i]);
+	}
+}
+
+static int __devinit vt1211_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct vt1211_data *data;
+	struct resource *res;
+	int i, err;
+
+	if (!(data = kzalloc(sizeof(struct vt1211_data), GFP_KERNEL))) {
+		err = -ENOMEM;
+		dev_err(dev, "Out of memory\n");
+		goto EXIT;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	if (!request_region(res->start, res->end - res->start + 1, DRVNAME)) {
+		err = -EBUSY;
+		dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
+			(unsigned long)res->start, (unsigned long)res->end);
+		goto EXIT_KFREE;
+	}
+	data->addr = res->start;
+	data->name = DRVNAME;
+	mutex_init(&data->update_lock);
+
+	platform_set_drvdata(pdev, data);
+
+	/* Initialize the VT1211 chip */
+	vt1211_init_device(data);
+
+	/* Create sysfs interface files */
+	for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_in_input); i++) {
+		if (ISVOLT(i, data->uch_config)) {
+			if ((err = device_create_file(dev,
+				&vt1211_sysfs_in_input[i].dev_attr)) ||
+			    (err = device_create_file(dev,
+				&vt1211_sysfs_in_min[i].dev_attr)) ||
+			    (err = device_create_file(dev,
+				&vt1211_sysfs_in_max[i].dev_attr)) ||
+			    (err = device_create_file(dev,
+				&vt1211_sysfs_in_alarm[i].dev_attr))) {
+				goto EXIT_DEV_REMOVE;
+			}
+		}
+	}
+	for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_temp_input); i++) {
+		if (ISTEMP(i, data->uch_config)) {
+			if ((err = device_create_file(dev,
+				&vt1211_sysfs_temp_input[i].dev_attr)) ||
+			    (err = device_create_file(dev,
+				&vt1211_sysfs_temp_max[i].dev_attr)) ||
+			    (err = device_create_file(dev,
+				&vt1211_sysfs_temp_max_hyst[i].dev_attr)) ||
+			    (err = device_create_file(dev,
+				&vt1211_sysfs_temp_alarm[i].dev_attr))) {
+				goto EXIT_DEV_REMOVE;
+			}
+		}
+	}
+	for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_fan_pwm); i++) {
+		err = device_create_file(dev,
+			&vt1211_sysfs_fan_pwm[i].dev_attr);
+		if (err) {
+			goto EXIT_DEV_REMOVE;
+		}
+	}
+	for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_misc); i++) {
+		err = device_create_file(dev,
+		       &vt1211_sysfs_misc[i]);
+		if (err) {
+			goto EXIT_DEV_REMOVE;
+		}
+	}
+
+	/* Register device */
+	data->hwmon_dev = hwmon_device_register(dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		dev_err(dev, "Class registration failed (%d)\n", err);
+		goto EXIT_DEV_REMOVE_SILENT;
+	}
+
+	return 0;
+
+EXIT_DEV_REMOVE:
+	dev_err(dev, "Sysfs interface creation failed (%d)\n", err);
+EXIT_DEV_REMOVE_SILENT:
+	vt1211_remove_sysfs(pdev);
+	release_region(res->start, res->end - res->start + 1);
+EXIT_KFREE:
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+EXIT:
+	return err;
+}
+
+static int __devexit vt1211_remove(struct platform_device *pdev)
+{
+	struct vt1211_data *data = platform_get_drvdata(pdev);
+	struct resource *res;
+
+	hwmon_device_unregister(data->hwmon_dev);
+	vt1211_remove_sysfs(pdev);
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	release_region(res->start, res->end - res->start + 1);
+
+	return 0;
+}
+
+static struct platform_driver vt1211_driver = {
+	.driver = {
+		.owner = THIS_MODULE,
+		.name  = DRVNAME,
+	},
+	.probe  = vt1211_probe,
+	.remove = __devexit_p(vt1211_remove),
+};
+
+static int __init vt1211_device_add(unsigned short address)
+{
+	struct resource res = {
+		.start	= address,
+		.end	= address + 0x7f,
+		.flags	= IORESOURCE_IO,
+	};
+	int err;
+
+	pdev = platform_device_alloc(DRVNAME, address);
+	if (!pdev) {
+		err = -ENOMEM;
+		printk(KERN_ERR DRVNAME ": Device allocation failed (%d)\n",
+		       err);
+		goto EXIT;
+	}
+
+	res.name = pdev->name;
+	err = platform_device_add_resources(pdev, &res, 1);
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Device resource addition failed "
+		       "(%d)\n", err);
+		goto EXIT_DEV_PUT;
+	}
+
+	err = platform_device_add(pdev);
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",
+		       err);
+		goto EXIT_DEV_PUT;
+	}
+
+	return 0;
+
+EXIT_DEV_PUT:
+	platform_device_put(pdev);
+EXIT:
+	return err;
+}
+
+static int __init vt1211_find(int sio_cip, unsigned short *address)
+{
+	int err = -ENODEV;
+	int devid;
+
+	superio_enter(sio_cip);
+
+	devid = force_id ? force_id : superio_inb(sio_cip, SIO_VT1211_DEVID);
+	if (devid != SIO_VT1211_ID) {
+		goto EXIT;
+	}
+
+	superio_select(sio_cip, SIO_VT1211_LDN_HWMON);
+
+	if ((superio_inb(sio_cip, SIO_VT1211_ACTIVE) & 1) == 0) {
+		printk(KERN_WARNING DRVNAME ": HW monitor is disabled, "
+		       "skipping\n");
+		goto EXIT;
+	}
+
+	*address = ((superio_inb(sio_cip, SIO_VT1211_BADDR) << 8) |
+		    (superio_inb(sio_cip, SIO_VT1211_BADDR + 1))) & 0xff00;
+	if (*address == 0) {
+		printk(KERN_WARNING DRVNAME ": Base address is not set, "
+		       "skipping\n");
+		goto EXIT;
+	}
+
+	err = 0;
+	printk(KERN_INFO DRVNAME ": Found VT1211 chip at 0x%04x, "
+	       "revision %u\n", *address,
+	       superio_inb(sio_cip, SIO_VT1211_DEVREV));
+
+EXIT:
+	superio_exit(sio_cip);
+	return err;
+}
+
+static int __init vt1211_init(void)
+{
+	int err;
+	unsigned short address = 0;
+
+	if ((err = vt1211_find(SIO_REG_CIP1, &address)) &&
+	    (err = vt1211_find(SIO_REG_CIP2, &address))) {
+		goto EXIT;
+	}
+
+	if ((uch_config < -1) || (uch_config > 31)) {
+		err = -EINVAL;
+		printk(KERN_WARNING DRVNAME ": Invalid UCH configuration %d. "
+		       "Choose a value between 0 and 31.\n", uch_config);
+	  goto EXIT;
+	}
+
+	if ((int_mode < -1) || (int_mode > 0)) {
+		err = -EINVAL;
+		printk(KERN_WARNING DRVNAME ": Invalid interrupt mode %d. "
+		       "Only mode 0 is supported.\n", int_mode);
+	  goto EXIT;
+	}
+
+	err = platform_driver_register(&vt1211_driver);
+	if (err) {
+		goto EXIT;
+	}
+
+	/* Sets global pdev as a side effect */
+	err = vt1211_device_add(address);
+	if (err) {
+		goto EXIT_DRV_UNREGISTER;
+	}
+
+	return 0;
+
+EXIT_DRV_UNREGISTER:
+	platform_driver_unregister(&vt1211_driver);
+EXIT:
+	return err;
+}
+
+static void __exit vt1211_exit(void)
+{
+	platform_device_unregister(pdev);
+	platform_driver_unregister(&vt1211_driver);
+}
+
+MODULE_AUTHOR("Juerg Haefliger <juergh@gmail.com>");
+MODULE_DESCRIPTION("VT1211 sensors");
+MODULE_LICENSE("GPL");
+
+module_init(vt1211_init);
+module_exit(vt1211_exit);
diff --git a/drivers/hwmon/vt8231.c b/drivers/hwmon/vt8231.c
new file mode 100644
index 0000000..5bc5727
--- /dev/null
+++ b/drivers/hwmon/vt8231.c
@@ -0,0 +1,1007 @@
+/*
+	vt8231.c - Part of lm_sensors, Linux kernel modules
+				for hardware monitoring
+
+	Copyright (c) 2005 Roger Lucas <vt8231@hiddenengine.co.uk>
+	Copyright (c) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
+			   Aaron M. Marsh <amarsh@sdf.lonestar.org>
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program; if not, write to the Free Software
+	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/* Supports VIA VT8231 South Bridge embedded sensors
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon-vid.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <asm/io.h>
+
+static int force_addr;
+module_param(force_addr, int, 0);
+MODULE_PARM_DESC(force_addr, "Initialize the base address of the sensors");
+
+static struct platform_device *pdev;
+
+#define VT8231_EXTENT 0x80
+#define VT8231_BASE_REG 0x70
+#define VT8231_ENABLE_REG 0x74
+
+/* The VT8231 registers
+
+   The reset value for the input channel configuration is used (Reg 0x4A=0x07)
+   which sets the selected inputs marked with '*' below if multiple options are
+   possible:
+
+	            Voltage Mode	  Temperature Mode
+	Sensor	      Linux Id	      Linux Id        VIA Id
+	--------      --------	      --------        ------
+	CPU Diode	N/A		temp1		0
+	UIC1		in0		temp2 *		1
+	UIC2		in1 *		temp3   	2
+	UIC3		in2 *		temp4		3
+	UIC4		in3 *		temp5		4
+	UIC5		in4 *		temp6		5
+	3.3V		in5		N/A
+
+   Note that the BIOS may set the configuration register to a different value
+   to match the motherboard configuration.
+*/
+
+/* fans numbered 0-1 */
+#define VT8231_REG_FAN_MIN(nr)	(0x3b + (nr))
+#define VT8231_REG_FAN(nr)	(0x29 + (nr))
+
+/* Voltage inputs numbered 0-5 */
+
+static const u8 regvolt[]    = { 0x21, 0x22, 0x23, 0x24, 0x25, 0x26 };
+static const u8 regvoltmax[] = { 0x3d, 0x2b, 0x2d, 0x2f, 0x31, 0x33 };
+static const u8 regvoltmin[] = { 0x3e, 0x2c, 0x2e, 0x30, 0x32, 0x34 };
+
+/* Temperatures are numbered 1-6 according to the Linux kernel specification.
+**
+** In the VIA datasheet, however, the temperatures are numbered from zero.
+** Since it is important that this driver can easily be compared to the VIA
+** datasheet, we will use the VIA numbering within this driver and map the
+** kernel sysfs device name to the VIA number in the sysfs callback.
+*/
+
+#define VT8231_REG_TEMP_LOW01	0x49
+#define VT8231_REG_TEMP_LOW25	0x4d
+
+static const u8 regtemp[]    = { 0x1f, 0x21, 0x22, 0x23, 0x24, 0x25 };
+static const u8 regtempmax[] = { 0x39, 0x3d, 0x2b, 0x2d, 0x2f, 0x31 };
+static const u8 regtempmin[] = { 0x3a, 0x3e, 0x2c, 0x2e, 0x30, 0x32 };
+
+#define TEMP_FROM_REG(reg)		(((253 * 4 - (reg)) * 550 + 105) / 210)
+#define TEMP_MAXMIN_FROM_REG(reg)	(((253 - (reg)) * 2200 + 105) / 210)
+#define TEMP_MAXMIN_TO_REG(val)		(253 - ((val) * 210 + 1100) / 2200)
+
+#define VT8231_REG_CONFIG 0x40
+#define VT8231_REG_ALARM1 0x41
+#define VT8231_REG_ALARM2 0x42
+#define VT8231_REG_FANDIV 0x47
+#define VT8231_REG_UCH_CONFIG 0x4a
+#define VT8231_REG_TEMP1_CONFIG 0x4b
+#define VT8231_REG_TEMP2_CONFIG 0x4c
+
+/* temps 0-5 as numbered in VIA datasheet - see later for mapping to Linux
+** numbering
+*/
+#define ISTEMP(i, ch_config) ((i) == 0 ? 1 : \
+			      ((ch_config) >> ((i)+1)) & 0x01)
+/* voltages 0-5 */
+#define ISVOLT(i, ch_config) ((i) == 5 ? 1 : \
+			      !(((ch_config) >> ((i)+2)) & 0x01))
+
+#define DIV_FROM_REG(val) (1 << (val))
+
+/* NB  The values returned here are NOT temperatures.  The calibration curves
+**     for the thermistor curves are board-specific and must go in the
+**     sensors.conf file.  Temperature sensors are actually ten bits, but the
+**     VIA datasheet only considers the 8 MSBs obtained from the regtemp[]
+**     register.  The temperature value returned should have a magnitude of 3,
+**     so we use the VIA scaling as the "true" scaling and use the remaining 2
+**     LSBs as fractional precision.
+**
+**     All the on-chip hardware temperature comparisons for the alarms are only
+**     8-bits wide, and compare against the 8 MSBs of the temperature.  The bits
+**     in the registers VT8231_REG_TEMP_LOW01 and VT8231_REG_TEMP_LOW25 are
+**     ignored.
+*/
+
+/******** FAN RPM CONVERSIONS ********
+** This chip saturates back at 0, not at 255 like many the other chips.
+** So, 0 means 0 RPM
+*/
+static inline u8 FAN_TO_REG(long rpm, int div)
+{
+	if (rpm == 0)
+		return 0;
+	return SENSORS_LIMIT(1310720 / (rpm * div), 1, 255);
+}
+
+#define FAN_FROM_REG(val, div) ((val) == 0 ? 0 : 1310720 / ((val) * (div)))
+
+struct vt8231_data {
+	unsigned short addr;
+	const char *name;
+
+	struct mutex update_lock;
+	struct device *hwmon_dev;
+	char valid;		/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+
+	u8 in[6];		/* Register value */
+	u8 in_max[6];		/* Register value */
+	u8 in_min[6];		/* Register value */
+	u16 temp[6];		/* Register value 10 bit, right aligned */
+	u8 temp_max[6];		/* Register value */
+	u8 temp_min[6];		/* Register value */
+	u8 fan[2];		/* Register value */
+	u8 fan_min[2];		/* Register value */
+	u8 fan_div[2];		/* Register encoding, shifted right */
+	u16 alarms;		/* Register encoding */
+	u8 uch_config;
+};
+
+static struct pci_dev *s_bridge;
+static int vt8231_probe(struct platform_device *pdev);
+static int __devexit vt8231_remove(struct platform_device *pdev);
+static struct vt8231_data *vt8231_update_device(struct device *dev);
+static void vt8231_init_device(struct vt8231_data *data);
+
+static inline int vt8231_read_value(struct vt8231_data *data, u8 reg)
+{
+	return inb_p(data->addr + reg);
+}
+
+static inline void vt8231_write_value(struct vt8231_data *data, u8 reg,
+					u8 value)
+{
+	outb_p(value, data->addr + reg);
+}
+
+/* following are the sysfs callback functions */
+static ssize_t show_in(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct vt8231_data *data = vt8231_update_device(dev);
+
+	return sprintf(buf, "%d\n", ((data->in[nr] - 3) * 10000) / 958);
+}
+
+static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct vt8231_data *data = vt8231_update_device(dev);
+
+	return sprintf(buf, "%d\n", ((data->in_min[nr] - 3) * 10000) / 958);
+}
+
+static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct vt8231_data *data = vt8231_update_device(dev);
+
+	return sprintf(buf, "%d\n", (((data->in_max[nr] - 3) * 10000) / 958));
+}
+
+static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct vt8231_data *data = dev_get_drvdata(dev);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_min[nr] = SENSORS_LIMIT(((val * 958) / 10000) + 3, 0, 255);
+	vt8231_write_value(data, regvoltmin[nr], data->in_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct vt8231_data *data = dev_get_drvdata(dev);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_max[nr] = SENSORS_LIMIT(((val * 958) / 10000) + 3, 0, 255);
+	vt8231_write_value(data, regvoltmax[nr], data->in_max[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+/* Special case for input 5 as this has 3.3V scaling built into the chip */
+static ssize_t show_in5(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct vt8231_data *data = vt8231_update_device(dev);
+
+	return sprintf(buf, "%d\n",
+		(((data->in[5] - 3) * 10000 * 54) / (958 * 34)));
+}
+
+static ssize_t show_in5_min(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct vt8231_data *data = vt8231_update_device(dev);
+
+	return sprintf(buf, "%d\n",
+		(((data->in_min[5] - 3) * 10000 * 54) / (958 * 34)));
+}
+
+static ssize_t show_in5_max(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct vt8231_data *data = vt8231_update_device(dev);
+
+	return sprintf(buf, "%d\n",
+		(((data->in_max[5] - 3) * 10000 * 54) / (958 * 34)));
+}
+
+static ssize_t set_in5_min(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct vt8231_data *data = dev_get_drvdata(dev);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_min[5] = SENSORS_LIMIT(((val * 958 * 34) / (10000 * 54)) + 3,
+					0, 255);
+	vt8231_write_value(data, regvoltmin[5], data->in_min[5]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t set_in5_max(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct vt8231_data *data = dev_get_drvdata(dev);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_max[5] = SENSORS_LIMIT(((val * 958 * 34) / (10000 * 54)) + 3,
+					0, 255);
+	vt8231_write_value(data, regvoltmax[5], data->in_max[5]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define define_voltage_sysfs(offset)				\
+static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO,		\
+		show_in, NULL, offset);				\
+static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,	\
+		show_in_min, set_in_min, offset);		\
+static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,	\
+		show_in_max, set_in_max, offset)
+
+define_voltage_sysfs(0);
+define_voltage_sysfs(1);
+define_voltage_sysfs(2);
+define_voltage_sysfs(3);
+define_voltage_sysfs(4);
+
+static DEVICE_ATTR(in5_input, S_IRUGO, show_in5, NULL);
+static DEVICE_ATTR(in5_min, S_IRUGO | S_IWUSR, show_in5_min, set_in5_min);
+static DEVICE_ATTR(in5_max, S_IRUGO | S_IWUSR, show_in5_max, set_in5_max);
+
+/* Temperatures */
+static ssize_t show_temp0(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct vt8231_data *data = vt8231_update_device(dev);
+	return sprintf(buf, "%d\n", data->temp[0] * 250);
+}
+
+static ssize_t show_temp0_max(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct vt8231_data *data = vt8231_update_device(dev);
+	return sprintf(buf, "%d\n", data->temp_max[0] * 1000);
+}
+
+static ssize_t show_temp0_min(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct vt8231_data *data = vt8231_update_device(dev);
+	return sprintf(buf, "%d\n", data->temp_min[0] * 1000);
+}
+
+static ssize_t set_temp0_max(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct vt8231_data *data = dev_get_drvdata(dev);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_max[0] = SENSORS_LIMIT((val + 500) / 1000, 0, 255);
+	vt8231_write_value(data, regtempmax[0], data->temp_max[0]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t set_temp0_min(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct vt8231_data *data = dev_get_drvdata(dev);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_min[0] = SENSORS_LIMIT((val + 500) / 1000, 0, 255);
+	vt8231_write_value(data, regtempmin[0], data->temp_min[0]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct vt8231_data *data = vt8231_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));
+}
+
+static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct vt8231_data *data = vt8231_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_MAXMIN_FROM_REG(data->temp_max[nr]));
+}
+
+static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct vt8231_data *data = vt8231_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_MAXMIN_FROM_REG(data->temp_min[nr]));
+}
+
+static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct vt8231_data *data = dev_get_drvdata(dev);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_max[nr] = SENSORS_LIMIT(TEMP_MAXMIN_TO_REG(val), 0, 255);
+	vt8231_write_value(data, regtempmax[nr], data->temp_max[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct vt8231_data *data = dev_get_drvdata(dev);
+	int val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp_min[nr] = SENSORS_LIMIT(TEMP_MAXMIN_TO_REG(val), 0, 255);
+	vt8231_write_value(data, regtempmin[nr], data->temp_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+/* Note that these map the Linux temperature sensor numbering (1-6) to the VIA
+** temperature sensor numbering (0-5)
+*/
+#define define_temperature_sysfs(offset)				\
+static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO,		\
+		show_temp, NULL, offset - 1);				\
+static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR,	\
+		show_temp_max, set_temp_max, offset - 1);		\
+static SENSOR_DEVICE_ATTR(temp##offset##_max_hyst, S_IRUGO | S_IWUSR,	\
+		show_temp_min, set_temp_min, offset - 1)
+
+static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp0, NULL);
+static DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, show_temp0_max, set_temp0_max);
+static DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp0_min, set_temp0_min);
+
+define_temperature_sysfs(2);
+define_temperature_sysfs(3);
+define_temperature_sysfs(4);
+define_temperature_sysfs(5);
+define_temperature_sysfs(6);
+
+/* Fans */
+static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct vt8231_data *data = vt8231_update_device(dev);
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],
+				DIV_FROM_REG(data->fan_div[nr])));
+}
+
+static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct vt8231_data *data = vt8231_update_device(dev);
+	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr],
+			DIV_FROM_REG(data->fan_div[nr])));
+}
+
+static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct vt8231_data *data = vt8231_update_device(dev);
+	return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));
+}
+
+static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct vt8231_data *data = dev_get_drvdata(dev);
+	int val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
+	vt8231_write_value(data, VT8231_REG_FAN_MIN(nr), data->fan_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct vt8231_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+	int nr = sensor_attr->index;
+	int old = vt8231_read_value(data, VT8231_REG_FANDIV);
+	long min = FAN_FROM_REG(data->fan_min[nr],
+				 DIV_FROM_REG(data->fan_div[nr]));
+
+	mutex_lock(&data->update_lock);
+	switch (val) {
+	case 1: data->fan_div[nr] = 0; break;
+	case 2: data->fan_div[nr] = 1; break;
+	case 4: data->fan_div[nr] = 2; break;
+	case 8: data->fan_div[nr] = 3; break;
+	default:
+		dev_err(dev, "fan_div value %ld not supported. "
+		        "Choose one of 1, 2, 4 or 8!\n", val);
+		mutex_unlock(&data->update_lock);
+		return -EINVAL;
+	}
+
+	/* Correct the fan minimum speed */
+	data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
+	vt8231_write_value(data, VT8231_REG_FAN_MIN(nr), data->fan_min[nr]);
+
+	old = (old & 0x0f) | (data->fan_div[1] << 6) | (data->fan_div[0] << 4);
+	vt8231_write_value(data, VT8231_REG_FANDIV, old);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+
+#define define_fan_sysfs(offset)					\
+static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO,			\
+		show_fan, NULL, offset - 1);				\
+static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR,		\
+		show_fan_div, set_fan_div, offset - 1);			\
+static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,		\
+		show_fan_min, set_fan_min, offset - 1)
+
+define_fan_sysfs(1);
+define_fan_sysfs(2);
+
+/* Alarms */
+static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
+			   char *buf)
+{
+	struct vt8231_data *data = vt8231_update_device(dev);
+	return sprintf(buf, "%d\n", data->alarms);
+}
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	struct vt8231_data *data = vt8231_update_device(dev);
+	return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
+}
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 11);
+static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp4_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp5_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp6_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 11);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7);
+
+static ssize_t show_name(struct device *dev, struct device_attribute
+			 *devattr, char *buf)
+{
+	struct vt8231_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%s\n", data->name);
+}
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+
+static struct attribute *vt8231_attributes_temps[6][5] = {
+	{
+		&dev_attr_temp1_input.attr,
+		&dev_attr_temp1_max_hyst.attr,
+		&dev_attr_temp1_max.attr,
+		&sensor_dev_attr_temp1_alarm.dev_attr.attr,
+		NULL
+	}, {
+		&sensor_dev_attr_temp2_input.dev_attr.attr,
+		&sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
+		&sensor_dev_attr_temp2_max.dev_attr.attr,
+		&sensor_dev_attr_temp2_alarm.dev_attr.attr,
+		NULL
+	}, {
+		&sensor_dev_attr_temp3_input.dev_attr.attr,
+		&sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
+		&sensor_dev_attr_temp3_max.dev_attr.attr,
+		&sensor_dev_attr_temp3_alarm.dev_attr.attr,
+		NULL
+	}, {
+		&sensor_dev_attr_temp4_input.dev_attr.attr,
+		&sensor_dev_attr_temp4_max_hyst.dev_attr.attr,
+		&sensor_dev_attr_temp4_max.dev_attr.attr,
+		&sensor_dev_attr_temp4_alarm.dev_attr.attr,
+		NULL
+	}, {
+		&sensor_dev_attr_temp5_input.dev_attr.attr,
+		&sensor_dev_attr_temp5_max_hyst.dev_attr.attr,
+		&sensor_dev_attr_temp5_max.dev_attr.attr,
+		&sensor_dev_attr_temp5_alarm.dev_attr.attr,
+		NULL
+	}, {
+		&sensor_dev_attr_temp6_input.dev_attr.attr,
+		&sensor_dev_attr_temp6_max_hyst.dev_attr.attr,
+		&sensor_dev_attr_temp6_max.dev_attr.attr,
+		&sensor_dev_attr_temp6_alarm.dev_attr.attr,
+		NULL
+	}
+};
+
+static const struct attribute_group vt8231_group_temps[6] = {
+	{ .attrs = vt8231_attributes_temps[0] },
+	{ .attrs = vt8231_attributes_temps[1] },
+	{ .attrs = vt8231_attributes_temps[2] },
+	{ .attrs = vt8231_attributes_temps[3] },
+	{ .attrs = vt8231_attributes_temps[4] },
+	{ .attrs = vt8231_attributes_temps[5] },
+};
+
+static struct attribute *vt8231_attributes_volts[6][5] = {
+	{
+		&sensor_dev_attr_in0_input.dev_attr.attr,
+		&sensor_dev_attr_in0_min.dev_attr.attr,
+		&sensor_dev_attr_in0_max.dev_attr.attr,
+		&sensor_dev_attr_in0_alarm.dev_attr.attr,
+		NULL
+	}, {
+		&sensor_dev_attr_in1_input.dev_attr.attr,
+		&sensor_dev_attr_in1_min.dev_attr.attr,
+		&sensor_dev_attr_in1_max.dev_attr.attr,
+		&sensor_dev_attr_in1_alarm.dev_attr.attr,
+		NULL
+	}, {
+		&sensor_dev_attr_in2_input.dev_attr.attr,
+		&sensor_dev_attr_in2_min.dev_attr.attr,
+		&sensor_dev_attr_in2_max.dev_attr.attr,
+		&sensor_dev_attr_in2_alarm.dev_attr.attr,
+		NULL
+	}, {
+		&sensor_dev_attr_in3_input.dev_attr.attr,
+		&sensor_dev_attr_in3_min.dev_attr.attr,
+		&sensor_dev_attr_in3_max.dev_attr.attr,
+		&sensor_dev_attr_in3_alarm.dev_attr.attr,
+		NULL
+	}, {
+		&sensor_dev_attr_in4_input.dev_attr.attr,
+		&sensor_dev_attr_in4_min.dev_attr.attr,
+		&sensor_dev_attr_in4_max.dev_attr.attr,
+		&sensor_dev_attr_in4_alarm.dev_attr.attr,
+		NULL
+	}, {
+		&dev_attr_in5_input.attr,
+		&dev_attr_in5_min.attr,
+		&dev_attr_in5_max.attr,
+		&sensor_dev_attr_in5_alarm.dev_attr.attr,
+		NULL
+	}
+};
+
+static const struct attribute_group vt8231_group_volts[6] = {
+	{ .attrs = vt8231_attributes_volts[0] },
+	{ .attrs = vt8231_attributes_volts[1] },
+	{ .attrs = vt8231_attributes_volts[2] },
+	{ .attrs = vt8231_attributes_volts[3] },
+	{ .attrs = vt8231_attributes_volts[4] },
+	{ .attrs = vt8231_attributes_volts[5] },
+};
+
+static struct attribute *vt8231_attributes[] = {
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_div.dev_attr.attr,
+	&sensor_dev_attr_fan2_div.dev_attr.attr,
+	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
+	&dev_attr_alarms.attr,
+	&dev_attr_name.attr,
+	NULL
+};
+
+static const struct attribute_group vt8231_group = {
+	.attrs = vt8231_attributes,
+};
+
+static struct platform_driver vt8231_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= "vt8231",
+	},
+	.probe	= vt8231_probe,
+	.remove	= __devexit_p(vt8231_remove),
+};
+
+static struct pci_device_id vt8231_pci_ids[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231_4) },
+	{ 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, vt8231_pci_ids);
+
+static int __devinit vt8231_pci_probe(struct pci_dev *dev,
+			 	      const struct pci_device_id *id);
+
+static struct pci_driver vt8231_pci_driver = {
+	.name		= "vt8231",
+	.id_table	= vt8231_pci_ids,
+	.probe		= vt8231_pci_probe,
+};
+
+static int vt8231_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	struct vt8231_data *data;
+	int err = 0, i;
+
+	/* Reserve the ISA region */
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	if (!request_region(res->start, VT8231_EXTENT,
+			    vt8231_driver.driver.name)) {
+		dev_err(&pdev->dev, "Region 0x%lx-0x%lx already in use!\n",
+			(unsigned long)res->start, (unsigned long)res->end);
+		return -ENODEV;
+	}
+
+	if (!(data = kzalloc(sizeof(struct vt8231_data), GFP_KERNEL))) {
+		err = -ENOMEM;
+		goto exit_release;
+	}
+
+	platform_set_drvdata(pdev, data);
+	data->addr = res->start;
+	data->name = "vt8231";
+
+	mutex_init(&data->update_lock);
+	vt8231_init_device(data);
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&pdev->dev.kobj, &vt8231_group)))
+		goto exit_free;
+
+	/* Must update device information to find out the config field */
+	data->uch_config = vt8231_read_value(data, VT8231_REG_UCH_CONFIG);
+
+	for (i = 0; i < ARRAY_SIZE(vt8231_group_temps); i++) {
+		if (ISTEMP(i, data->uch_config)) {
+			if ((err = sysfs_create_group(&pdev->dev.kobj,
+					&vt8231_group_temps[i])))
+				goto exit_remove_files;
+		}
+	}
+
+	for (i = 0; i < ARRAY_SIZE(vt8231_group_volts); i++) {
+		if (ISVOLT(i, data->uch_config)) {
+			if ((err = sysfs_create_group(&pdev->dev.kobj,
+					&vt8231_group_volts[i])))
+				goto exit_remove_files;
+		}
+	}
+
+	data->hwmon_dev = hwmon_device_register(&pdev->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove_files;
+	}
+	return 0;
+
+exit_remove_files:
+	for (i = 0; i < ARRAY_SIZE(vt8231_group_volts); i++)
+		sysfs_remove_group(&pdev->dev.kobj, &vt8231_group_volts[i]);
+
+	for (i = 0; i < ARRAY_SIZE(vt8231_group_temps); i++)
+		sysfs_remove_group(&pdev->dev.kobj, &vt8231_group_temps[i]);
+
+	sysfs_remove_group(&pdev->dev.kobj, &vt8231_group);
+
+exit_free:
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+
+exit_release:
+	release_region(res->start, VT8231_EXTENT);
+	return err;
+}
+
+static int __devexit vt8231_remove(struct platform_device *pdev)
+{
+	struct vt8231_data *data = platform_get_drvdata(pdev);
+	int i;
+
+	hwmon_device_unregister(data->hwmon_dev);
+
+	for (i = 0; i < ARRAY_SIZE(vt8231_group_volts); i++)
+		sysfs_remove_group(&pdev->dev.kobj, &vt8231_group_volts[i]);
+
+	for (i = 0; i < ARRAY_SIZE(vt8231_group_temps); i++)
+		sysfs_remove_group(&pdev->dev.kobj, &vt8231_group_temps[i]);
+
+	sysfs_remove_group(&pdev->dev.kobj, &vt8231_group);
+
+	release_region(data->addr, VT8231_EXTENT);
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+	return 0;
+}
+
+static void vt8231_init_device(struct vt8231_data *data)
+{
+	vt8231_write_value(data, VT8231_REG_TEMP1_CONFIG, 0);
+	vt8231_write_value(data, VT8231_REG_TEMP2_CONFIG, 0);
+}
+
+static struct vt8231_data *vt8231_update_device(struct device *dev)
+{
+	struct vt8231_data *data = dev_get_drvdata(dev);
+	int i;
+	u16 low;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	    || !data->valid) {
+		for (i = 0; i < 6; i++) {
+			if (ISVOLT(i, data->uch_config)) {
+				data->in[i] = vt8231_read_value(data,
+						regvolt[i]);
+				data->in_min[i] = vt8231_read_value(data,
+						regvoltmin[i]);
+				data->in_max[i] = vt8231_read_value(data,
+						regvoltmax[i]);
+			}
+		}
+		for (i = 0; i < 2; i++) {
+			data->fan[i] = vt8231_read_value(data,
+						VT8231_REG_FAN(i));
+			data->fan_min[i] = vt8231_read_value(data,
+						VT8231_REG_FAN_MIN(i));
+		}
+
+		low = vt8231_read_value(data, VT8231_REG_TEMP_LOW01);
+		low = (low >> 6) | ((low & 0x30) >> 2)
+		    | (vt8231_read_value(data, VT8231_REG_TEMP_LOW25) << 4);
+		for (i = 0; i < 6; i++) {
+			if (ISTEMP(i, data->uch_config)) {
+				data->temp[i] = (vt8231_read_value(data,
+						       regtemp[i]) << 2)
+						| ((low >> (2 * i)) & 0x03);
+				data->temp_max[i] = vt8231_read_value(data,
+						      regtempmax[i]);
+				data->temp_min[i] = vt8231_read_value(data,
+						      regtempmin[i]);
+			}
+		}
+
+		i = vt8231_read_value(data, VT8231_REG_FANDIV);
+		data->fan_div[0] = (i >> 4) & 0x03;
+		data->fan_div[1] = i >> 6;
+		data->alarms = vt8231_read_value(data, VT8231_REG_ALARM1) |
+			(vt8231_read_value(data, VT8231_REG_ALARM2) << 8);
+
+		/* Set alarm flags correctly */
+		if (!data->fan[0] && data->fan_min[0]) {
+			data->alarms |= 0x40;
+		} else if (data->fan[0] && !data->fan_min[0]) {
+			data->alarms &= ~0x40;
+		}
+
+		if (!data->fan[1] && data->fan_min[1]) {
+			data->alarms |= 0x80;
+		} else if (data->fan[1] && !data->fan_min[1]) {
+			data->alarms &= ~0x80;
+		}
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __devinit vt8231_device_add(unsigned short address)
+{
+	struct resource res = {
+		.start	= address,
+		.end	= address + VT8231_EXTENT - 1,
+		.name	= "vt8231",
+		.flags	= IORESOURCE_IO,
+	};
+	int err;
+
+	pdev = platform_device_alloc("vt8231", address);
+	if (!pdev) {
+		err = -ENOMEM;
+		printk(KERN_ERR "vt8231: Device allocation failed\n");
+		goto exit;
+	}
+
+	err = platform_device_add_resources(pdev, &res, 1);
+	if (err) {
+		printk(KERN_ERR "vt8231: Device resource addition failed "
+		       "(%d)\n", err);
+		goto exit_device_put;
+	}
+
+	err = platform_device_add(pdev);
+	if (err) {
+		printk(KERN_ERR "vt8231: Device addition failed (%d)\n",
+		       err);
+		goto exit_device_put;
+	}
+
+	return 0;
+
+exit_device_put:
+	platform_device_put(pdev);
+exit:
+	return err;
+}
+
+static int __devinit vt8231_pci_probe(struct pci_dev *dev,
+				const struct pci_device_id *id)
+{
+	u16 address, val;
+	if (force_addr) {
+		address = force_addr & 0xff00;
+		dev_warn(&dev->dev, "Forcing ISA address 0x%x\n",
+			 address);
+
+		if (PCIBIOS_SUCCESSFUL !=
+		    pci_write_config_word(dev, VT8231_BASE_REG, address | 1))
+			return -ENODEV;
+	}
+
+	if (PCIBIOS_SUCCESSFUL != pci_read_config_word(dev, VT8231_BASE_REG,
+							&val))
+		return -ENODEV;
+
+	address = val & ~(VT8231_EXTENT - 1);
+	if (address == 0) {
+		dev_err(&dev->dev, "base address not set -\
+				 upgrade BIOS or use force_addr=0xaddr\n");
+		return -ENODEV;
+	}
+
+	if (PCIBIOS_SUCCESSFUL != pci_read_config_word(dev, VT8231_ENABLE_REG,
+							&val))
+		return -ENODEV;
+
+	if (!(val & 0x0001)) {
+		dev_warn(&dev->dev, "enabling sensors\n");
+		if (PCIBIOS_SUCCESSFUL !=
+			pci_write_config_word(dev, VT8231_ENABLE_REG,
+							val | 0x0001))
+			return -ENODEV;
+	}
+
+	if (platform_driver_register(&vt8231_driver))
+		goto exit;
+
+	/* Sets global pdev as a side effect */
+	if (vt8231_device_add(address))
+		goto exit_unregister;
+
+	/* Always return failure here.  This is to allow other drivers to bind
+	 * to this pci device.  We don't really want to have control over the
+	 * pci device, we only wanted to read as few register values from it.
+	 */
+
+	/* We do, however, mark ourselves as using the PCI device to stop it
+	   getting unloaded. */
+	s_bridge = pci_dev_get(dev);
+	return -ENODEV;
+
+exit_unregister:
+	platform_driver_unregister(&vt8231_driver);
+exit:
+	return -ENODEV;
+}
+
+static int __init sm_vt8231_init(void)
+{
+	return pci_register_driver(&vt8231_pci_driver);
+}
+
+static void __exit sm_vt8231_exit(void)
+{
+	pci_unregister_driver(&vt8231_pci_driver);
+	if (s_bridge != NULL) {
+		platform_device_unregister(pdev);
+		platform_driver_unregister(&vt8231_driver);
+		pci_dev_put(s_bridge);
+		s_bridge = NULL;
+	}
+}
+
+MODULE_AUTHOR("Roger Lucas <vt8231@hiddenengine.co.uk>");
+MODULE_DESCRIPTION("VT8231 sensors");
+MODULE_LICENSE("GPL");
+
+module_init(sm_vt8231_init);
+module_exit(sm_vt8231_exit);
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
new file mode 100644
index 0000000..075164d
--- /dev/null
+++ b/drivers/hwmon/w83627ehf.c
@@ -0,0 +1,1583 @@
+/*
+    w83627ehf - Driver for the hardware monitoring functionality of
+                the Winbond W83627EHF Super-I/O chip
+    Copyright (C) 2005  Jean Delvare <khali@linux-fr.org>
+    Copyright (C) 2006  Yuan Mu (Winbond),
+                        Rudolf Marek <r.marek@assembler.cz>
+                        David Hubbard <david.c.hubbard@gmail.com>
+
+    Shamelessly ripped from the w83627hf driver
+    Copyright (C) 2003  Mark Studebaker
+
+    Thanks to Leon Moonen, Steve Cliffe and Grant Coady for their help
+    in testing and debugging this driver.
+
+    This driver also supports the W83627EHG, which is the lead-free
+    version of the W83627EHF.
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+
+    Supports the following chips:
+
+    Chip        #vin    #fan    #pwm    #temp  chip IDs       man ID
+    w83627ehf   10      5       4       3      0x8850 0x88    0x5ca3
+                                               0x8860 0xa1
+    w83627dhg    9      5       4       3      0xa020 0xc1    0x5ca3
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon-vid.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <asm/io.h>
+#include "lm75.h"
+
+enum kinds { w83627ehf, w83627dhg };
+
+/* used to set data->name = w83627ehf_device_names[data->sio_kind] */
+static const char * w83627ehf_device_names[] = {
+	"w83627ehf",
+	"w83627dhg",
+};
+
+static unsigned short force_id;
+module_param(force_id, ushort, 0);
+MODULE_PARM_DESC(force_id, "Override the detected device ID");
+
+#define DRVNAME "w83627ehf"
+
+/*
+ * Super-I/O constants and functions
+ */
+
+#define W83627EHF_LD_HWM	0x0b
+
+#define SIO_REG_LDSEL		0x07	/* Logical device select */
+#define SIO_REG_DEVID		0x20	/* Device ID (2 bytes) */
+#define SIO_REG_EN_VRM10	0x2C	/* GPIO3, GPIO4 selection */
+#define SIO_REG_ENABLE		0x30	/* Logical device enable */
+#define SIO_REG_ADDR		0x60	/* Logical device address (2 bytes) */
+#define SIO_REG_VID_CTRL	0xF0	/* VID control */
+#define SIO_REG_VID_DATA	0xF1	/* VID data */
+
+#define SIO_W83627EHF_ID	0x8850
+#define SIO_W83627EHG_ID	0x8860
+#define SIO_W83627DHG_ID	0xa020
+#define SIO_ID_MASK		0xFFF0
+
+static inline void
+superio_outb(int ioreg, int reg, int val)
+{
+	outb(reg, ioreg);
+	outb(val, ioreg + 1);
+}
+
+static inline int
+superio_inb(int ioreg, int reg)
+{
+	outb(reg, ioreg);
+	return inb(ioreg + 1);
+}
+
+static inline void
+superio_select(int ioreg, int ld)
+{
+	outb(SIO_REG_LDSEL, ioreg);
+	outb(ld, ioreg + 1);
+}
+
+static inline void
+superio_enter(int ioreg)
+{
+	outb(0x87, ioreg);
+	outb(0x87, ioreg);
+}
+
+static inline void
+superio_exit(int ioreg)
+{
+	outb(0x02, ioreg);
+	outb(0x02, ioreg + 1);
+}
+
+/*
+ * ISA constants
+ */
+
+#define IOREGION_ALIGNMENT	~7
+#define IOREGION_OFFSET		5
+#define IOREGION_LENGTH		2
+#define ADDR_REG_OFFSET		0
+#define DATA_REG_OFFSET		1
+
+#define W83627EHF_REG_BANK		0x4E
+#define W83627EHF_REG_CONFIG		0x40
+
+/* Not currently used:
+ * REG_MAN_ID has the value 0x5ca3 for all supported chips.
+ * REG_CHIP_ID == 0x88/0xa1/0xc1 depending on chip model.
+ * REG_MAN_ID is at port 0x4f
+ * REG_CHIP_ID is at port 0x58 */
+
+static const u16 W83627EHF_REG_FAN[] = { 0x28, 0x29, 0x2a, 0x3f, 0x553 };
+static const u16 W83627EHF_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d, 0x3e, 0x55c };
+
+/* The W83627EHF registers for nr=7,8,9 are in bank 5 */
+#define W83627EHF_REG_IN_MAX(nr)	((nr < 7) ? (0x2b + (nr) * 2) : \
+					 (0x554 + (((nr) - 7) * 2)))
+#define W83627EHF_REG_IN_MIN(nr)	((nr < 7) ? (0x2c + (nr) * 2) : \
+					 (0x555 + (((nr) - 7) * 2)))
+#define W83627EHF_REG_IN(nr)		((nr < 7) ? (0x20 + (nr)) : \
+					 (0x550 + (nr) - 7))
+
+#define W83627EHF_REG_TEMP1		0x27
+#define W83627EHF_REG_TEMP1_HYST	0x3a
+#define W83627EHF_REG_TEMP1_OVER	0x39
+static const u16 W83627EHF_REG_TEMP[] = { 0x150, 0x250 };
+static const u16 W83627EHF_REG_TEMP_HYST[] = { 0x153, 0x253 };
+static const u16 W83627EHF_REG_TEMP_OVER[] = { 0x155, 0x255 };
+static const u16 W83627EHF_REG_TEMP_CONFIG[] = { 0x152, 0x252 };
+
+/* Fan clock dividers are spread over the following five registers */
+#define W83627EHF_REG_FANDIV1		0x47
+#define W83627EHF_REG_FANDIV2		0x4B
+#define W83627EHF_REG_VBAT		0x5D
+#define W83627EHF_REG_DIODE		0x59
+#define W83627EHF_REG_SMI_OVT		0x4C
+
+#define W83627EHF_REG_ALARM1		0x459
+#define W83627EHF_REG_ALARM2		0x45A
+#define W83627EHF_REG_ALARM3		0x45B
+
+/* SmartFan registers */
+/* DC or PWM output fan configuration */
+static const u8 W83627EHF_REG_PWM_ENABLE[] = {
+	0x04,			/* SYS FAN0 output mode and PWM mode */
+	0x04,			/* CPU FAN0 output mode and PWM mode */
+	0x12,			/* AUX FAN mode */
+	0x62,			/* CPU fan1 mode */
+};
+
+static const u8 W83627EHF_PWM_MODE_SHIFT[] = { 0, 1, 0, 6 };
+static const u8 W83627EHF_PWM_ENABLE_SHIFT[] = { 2, 4, 1, 4 };
+
+/* FAN Duty Cycle, be used to control */
+static const u8 W83627EHF_REG_PWM[] = { 0x01, 0x03, 0x11, 0x61 };
+static const u8 W83627EHF_REG_TARGET[] = { 0x05, 0x06, 0x13, 0x63 };
+static const u8 W83627EHF_REG_TOLERANCE[] = { 0x07, 0x07, 0x14, 0x62 };
+
+
+/* Advanced Fan control, some values are common for all fans */
+static const u8 W83627EHF_REG_FAN_MIN_OUTPUT[] = { 0x08, 0x09, 0x15, 0x64 };
+static const u8 W83627EHF_REG_FAN_STOP_TIME[] = { 0x0C, 0x0D, 0x17, 0x66 };
+
+/*
+ * Conversions
+ */
+
+/* 1 is PWM mode, output in ms */
+static inline unsigned int step_time_from_reg(u8 reg, u8 mode)
+{
+	return mode ? 100 * reg : 400 * reg;
+}
+
+static inline u8 step_time_to_reg(unsigned int msec, u8 mode)
+{
+	return SENSORS_LIMIT((mode ? (msec + 50) / 100 :
+						(msec + 200) / 400), 1, 255);
+}
+
+static inline unsigned int
+fan_from_reg(u8 reg, unsigned int div)
+{
+	if (reg == 0 || reg == 255)
+		return 0;
+	return 1350000U / (reg * div);
+}
+
+static inline unsigned int
+div_from_reg(u8 reg)
+{
+	return 1 << reg;
+}
+
+static inline int
+temp1_from_reg(s8 reg)
+{
+	return reg * 1000;
+}
+
+static inline s8
+temp1_to_reg(long temp, int min, int max)
+{
+	if (temp <= min)
+		return min / 1000;
+	if (temp >= max)
+		return max / 1000;
+	if (temp < 0)
+		return (temp - 500) / 1000;
+	return (temp + 500) / 1000;
+}
+
+/* Some of analog inputs have internal scaling (2x), 8mV is ADC LSB */
+
+static u8 scale_in[10] = { 8, 8, 16, 16, 8, 8, 8, 16, 16, 8 };
+
+static inline long in_from_reg(u8 reg, u8 nr)
+{
+	return reg * scale_in[nr];
+}
+
+static inline u8 in_to_reg(u32 val, u8 nr)
+{
+	return SENSORS_LIMIT(((val + (scale_in[nr] / 2)) / scale_in[nr]), 0, 255);
+}
+
+/*
+ * Data structures and manipulation thereof
+ */
+
+struct w83627ehf_data {
+	int addr;	/* IO base of hw monitor block */
+	const char *name;
+
+	struct device *hwmon_dev;
+	struct mutex lock;
+
+	struct mutex update_lock;
+	char valid;		/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+
+	/* Register values */
+	u8 in_num;		/* number of in inputs we have */
+	u8 in[10];		/* Register value */
+	u8 in_max[10];		/* Register value */
+	u8 in_min[10];		/* Register value */
+	u8 fan[5];
+	u8 fan_min[5];
+	u8 fan_div[5];
+	u8 has_fan;		/* some fan inputs can be disabled */
+	u8 temp_type[3];
+	s8 temp1;
+	s8 temp1_max;
+	s8 temp1_max_hyst;
+	s16 temp[2];
+	s16 temp_max[2];
+	s16 temp_max_hyst[2];
+	u32 alarms;
+
+	u8 pwm_mode[4]; /* 0->DC variable voltage, 1->PWM variable duty cycle */
+	u8 pwm_enable[4]; /* 1->manual
+			     2->thermal cruise (also called SmartFan I) */
+	u8 pwm[4];
+	u8 target_temp[4];
+	u8 tolerance[4];
+
+	u8 fan_min_output[4]; /* minimum fan speed */
+	u8 fan_stop_time[4];
+
+	u8 vid;
+	u8 vrm;
+};
+
+struct w83627ehf_sio_data {
+	int sioreg;
+	enum kinds kind;
+};
+
+static inline int is_word_sized(u16 reg)
+{
+	return (((reg & 0xff00) == 0x100
+	      || (reg & 0xff00) == 0x200)
+	     && ((reg & 0x00ff) == 0x50
+	      || (reg & 0x00ff) == 0x53
+	      || (reg & 0x00ff) == 0x55));
+}
+
+/* Registers 0x50-0x5f are banked */
+static inline void w83627ehf_set_bank(struct w83627ehf_data *data, u16 reg)
+{
+	if ((reg & 0x00f0) == 0x50) {
+		outb_p(W83627EHF_REG_BANK, data->addr + ADDR_REG_OFFSET);
+		outb_p(reg >> 8, data->addr + DATA_REG_OFFSET);
+	}
+}
+
+/* Not strictly necessary, but play it safe for now */
+static inline void w83627ehf_reset_bank(struct w83627ehf_data *data, u16 reg)
+{
+	if (reg & 0xff00) {
+		outb_p(W83627EHF_REG_BANK, data->addr + ADDR_REG_OFFSET);
+		outb_p(0, data->addr + DATA_REG_OFFSET);
+	}
+}
+
+static u16 w83627ehf_read_value(struct w83627ehf_data *data, u16 reg)
+{
+	int res, word_sized = is_word_sized(reg);
+
+	mutex_lock(&data->lock);
+
+	w83627ehf_set_bank(data, reg);
+	outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
+	res = inb_p(data->addr + DATA_REG_OFFSET);
+	if (word_sized) {
+		outb_p((reg & 0xff) + 1,
+		       data->addr + ADDR_REG_OFFSET);
+		res = (res << 8) + inb_p(data->addr + DATA_REG_OFFSET);
+	}
+	w83627ehf_reset_bank(data, reg);
+
+	mutex_unlock(&data->lock);
+
+	return res;
+}
+
+static int w83627ehf_write_value(struct w83627ehf_data *data, u16 reg, u16 value)
+{
+	int word_sized = is_word_sized(reg);
+
+	mutex_lock(&data->lock);
+
+	w83627ehf_set_bank(data, reg);
+	outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
+	if (word_sized) {
+		outb_p(value >> 8, data->addr + DATA_REG_OFFSET);
+		outb_p((reg & 0xff) + 1,
+		       data->addr + ADDR_REG_OFFSET);
+	}
+	outb_p(value & 0xff, data->addr + DATA_REG_OFFSET);
+	w83627ehf_reset_bank(data, reg);
+
+	mutex_unlock(&data->lock);
+	return 0;
+}
+
+/* This function assumes that the caller holds data->update_lock */
+static void w83627ehf_write_fan_div(struct w83627ehf_data *data, int nr)
+{
+	u8 reg;
+
+	switch (nr) {
+	case 0:
+		reg = (w83627ehf_read_value(data, W83627EHF_REG_FANDIV1) & 0xcf)
+		    | ((data->fan_div[0] & 0x03) << 4);
+		/* fan5 input control bit is write only, compute the value */
+		reg |= (data->has_fan & (1 << 4)) ? 1 : 0;
+		w83627ehf_write_value(data, W83627EHF_REG_FANDIV1, reg);
+		reg = (w83627ehf_read_value(data, W83627EHF_REG_VBAT) & 0xdf)
+		    | ((data->fan_div[0] & 0x04) << 3);
+		w83627ehf_write_value(data, W83627EHF_REG_VBAT, reg);
+		break;
+	case 1:
+		reg = (w83627ehf_read_value(data, W83627EHF_REG_FANDIV1) & 0x3f)
+		    | ((data->fan_div[1] & 0x03) << 6);
+		/* fan5 input control bit is write only, compute the value */
+		reg |= (data->has_fan & (1 << 4)) ? 1 : 0;
+		w83627ehf_write_value(data, W83627EHF_REG_FANDIV1, reg);
+		reg = (w83627ehf_read_value(data, W83627EHF_REG_VBAT) & 0xbf)
+		    | ((data->fan_div[1] & 0x04) << 4);
+		w83627ehf_write_value(data, W83627EHF_REG_VBAT, reg);
+		break;
+	case 2:
+		reg = (w83627ehf_read_value(data, W83627EHF_REG_FANDIV2) & 0x3f)
+		    | ((data->fan_div[2] & 0x03) << 6);
+		w83627ehf_write_value(data, W83627EHF_REG_FANDIV2, reg);
+		reg = (w83627ehf_read_value(data, W83627EHF_REG_VBAT) & 0x7f)
+		    | ((data->fan_div[2] & 0x04) << 5);
+		w83627ehf_write_value(data, W83627EHF_REG_VBAT, reg);
+		break;
+	case 3:
+		reg = (w83627ehf_read_value(data, W83627EHF_REG_DIODE) & 0xfc)
+		    | (data->fan_div[3] & 0x03);
+		w83627ehf_write_value(data, W83627EHF_REG_DIODE, reg);
+		reg = (w83627ehf_read_value(data, W83627EHF_REG_SMI_OVT) & 0x7f)
+		    | ((data->fan_div[3] & 0x04) << 5);
+		w83627ehf_write_value(data, W83627EHF_REG_SMI_OVT, reg);
+		break;
+	case 4:
+		reg = (w83627ehf_read_value(data, W83627EHF_REG_DIODE) & 0x73)
+		    | ((data->fan_div[4] & 0x03) << 2)
+		    | ((data->fan_div[4] & 0x04) << 5);
+		w83627ehf_write_value(data, W83627EHF_REG_DIODE, reg);
+		break;
+	}
+}
+
+static void w83627ehf_update_fan_div(struct w83627ehf_data *data)
+{
+	int i;
+
+	i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV1);
+	data->fan_div[0] = (i >> 4) & 0x03;
+	data->fan_div[1] = (i >> 6) & 0x03;
+	i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV2);
+	data->fan_div[2] = (i >> 6) & 0x03;
+	i = w83627ehf_read_value(data, W83627EHF_REG_VBAT);
+	data->fan_div[0] |= (i >> 3) & 0x04;
+	data->fan_div[1] |= (i >> 4) & 0x04;
+	data->fan_div[2] |= (i >> 5) & 0x04;
+	if (data->has_fan & ((1 << 3) | (1 << 4))) {
+		i = w83627ehf_read_value(data, W83627EHF_REG_DIODE);
+		data->fan_div[3] = i & 0x03;
+		data->fan_div[4] = ((i >> 2) & 0x03)
+				 | ((i >> 5) & 0x04);
+	}
+	if (data->has_fan & (1 << 3)) {
+		i = w83627ehf_read_value(data, W83627EHF_REG_SMI_OVT);
+		data->fan_div[3] |= (i >> 5) & 0x04;
+	}
+}
+
+static struct w83627ehf_data *w83627ehf_update_device(struct device *dev)
+{
+	struct w83627ehf_data *data = dev_get_drvdata(dev);
+	int pwmcfg = 0, tolerance = 0; /* shut up the compiler */
+	int i;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ/2)
+	 || !data->valid) {
+		/* Fan clock dividers */
+		w83627ehf_update_fan_div(data);
+
+		/* Measured voltages and limits */
+		for (i = 0; i < data->in_num; i++) {
+			data->in[i] = w83627ehf_read_value(data,
+				      W83627EHF_REG_IN(i));
+			data->in_min[i] = w83627ehf_read_value(data,
+					  W83627EHF_REG_IN_MIN(i));
+			data->in_max[i] = w83627ehf_read_value(data,
+					  W83627EHF_REG_IN_MAX(i));
+		}
+
+		/* Measured fan speeds and limits */
+		for (i = 0; i < 5; i++) {
+			if (!(data->has_fan & (1 << i)))
+				continue;
+
+			data->fan[i] = w83627ehf_read_value(data,
+				       W83627EHF_REG_FAN[i]);
+			data->fan_min[i] = w83627ehf_read_value(data,
+					   W83627EHF_REG_FAN_MIN[i]);
+
+			/* If we failed to measure the fan speed and clock
+			   divider can be increased, let's try that for next
+			   time */
+			if (data->fan[i] == 0xff
+			 && data->fan_div[i] < 0x07) {
+			 	dev_dbg(dev, "Increasing fan%d "
+					"clock divider from %u to %u\n",
+					i + 1, div_from_reg(data->fan_div[i]),
+					div_from_reg(data->fan_div[i] + 1));
+				data->fan_div[i]++;
+				w83627ehf_write_fan_div(data, i);
+				/* Preserve min limit if possible */
+				if (data->fan_min[i] >= 2
+				 && data->fan_min[i] != 255)
+					w83627ehf_write_value(data,
+						W83627EHF_REG_FAN_MIN[i],
+						(data->fan_min[i] /= 2));
+			}
+		}
+
+		for (i = 0; i < 4; i++) {
+			/* pwmcfg, tolarance mapped for i=0, i=1 to same reg */
+			if (i != 1) {
+				pwmcfg = w83627ehf_read_value(data,
+						W83627EHF_REG_PWM_ENABLE[i]);
+				tolerance = w83627ehf_read_value(data,
+						W83627EHF_REG_TOLERANCE[i]);
+			}
+			data->pwm_mode[i] =
+				((pwmcfg >> W83627EHF_PWM_MODE_SHIFT[i]) & 1)
+				? 0 : 1;
+			data->pwm_enable[i] =
+					((pwmcfg >> W83627EHF_PWM_ENABLE_SHIFT[i])
+						& 3) + 1;
+			data->pwm[i] = w83627ehf_read_value(data,
+						W83627EHF_REG_PWM[i]);
+			data->fan_min_output[i] = w83627ehf_read_value(data,
+						W83627EHF_REG_FAN_MIN_OUTPUT[i]);
+			data->fan_stop_time[i] = w83627ehf_read_value(data,
+						W83627EHF_REG_FAN_STOP_TIME[i]);
+			data->target_temp[i] =
+				w83627ehf_read_value(data,
+					W83627EHF_REG_TARGET[i]) &
+					(data->pwm_mode[i] == 1 ? 0x7f : 0xff);
+			data->tolerance[i] = (tolerance >> (i == 1 ? 4 : 0))
+									& 0x0f;
+		}
+
+		/* Measured temperatures and limits */
+		data->temp1 = w83627ehf_read_value(data,
+			      W83627EHF_REG_TEMP1);
+		data->temp1_max = w83627ehf_read_value(data,
+				  W83627EHF_REG_TEMP1_OVER);
+		data->temp1_max_hyst = w83627ehf_read_value(data,
+				       W83627EHF_REG_TEMP1_HYST);
+		for (i = 0; i < 2; i++) {
+			data->temp[i] = w83627ehf_read_value(data,
+					W83627EHF_REG_TEMP[i]);
+			data->temp_max[i] = w83627ehf_read_value(data,
+					    W83627EHF_REG_TEMP_OVER[i]);
+			data->temp_max_hyst[i] = w83627ehf_read_value(data,
+						 W83627EHF_REG_TEMP_HYST[i]);
+		}
+
+		data->alarms = w83627ehf_read_value(data,
+					W83627EHF_REG_ALARM1) |
+			       (w83627ehf_read_value(data,
+					W83627EHF_REG_ALARM2) << 8) |
+			       (w83627ehf_read_value(data,
+					W83627EHF_REG_ALARM3) << 16);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+	return data;
+}
+
+/*
+ * Sysfs callback functions
+ */
+#define show_in_reg(reg) \
+static ssize_t \
+show_##reg(struct device *dev, struct device_attribute *attr, \
+	   char *buf) \
+{ \
+	struct w83627ehf_data *data = w83627ehf_update_device(dev); \
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
+	int nr = sensor_attr->index; \
+	return sprintf(buf, "%ld\n", in_from_reg(data->reg[nr], nr)); \
+}
+show_in_reg(in)
+show_in_reg(in_min)
+show_in_reg(in_max)
+
+#define store_in_reg(REG, reg) \
+static ssize_t \
+store_in_##reg (struct device *dev, struct device_attribute *attr, \
+			const char *buf, size_t count) \
+{ \
+	struct w83627ehf_data *data = dev_get_drvdata(dev); \
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
+	int nr = sensor_attr->index; \
+	u32 val = simple_strtoul(buf, NULL, 10); \
+ \
+	mutex_lock(&data->update_lock); \
+	data->in_##reg[nr] = in_to_reg(val, nr); \
+	w83627ehf_write_value(data, W83627EHF_REG_IN_##REG(nr), \
+			      data->in_##reg[nr]); \
+	mutex_unlock(&data->update_lock); \
+	return count; \
+}
+
+store_in_reg(MIN, min)
+store_in_reg(MAX, max)
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83627ehf_data *data = w83627ehf_update_device(dev);
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	return sprintf(buf, "%u\n", (data->alarms >> nr) & 0x01);
+}
+
+static struct sensor_device_attribute sda_in_input[] = {
+	SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0),
+	SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1),
+	SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2),
+	SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3),
+	SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4),
+	SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5),
+	SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6),
+	SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7),
+	SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8),
+	SENSOR_ATTR(in9_input, S_IRUGO, show_in, NULL, 9),
+};
+
+static struct sensor_device_attribute sda_in_alarm[] = {
+	SENSOR_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0),
+	SENSOR_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1),
+	SENSOR_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2),
+	SENSOR_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3),
+	SENSOR_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8),
+	SENSOR_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 21),
+	SENSOR_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 20),
+	SENSOR_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 16),
+	SENSOR_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 17),
+	SENSOR_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 19),
+};
+
+static struct sensor_device_attribute sda_in_min[] = {
+       SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 0),
+       SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 1),
+       SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 2),
+       SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 3),
+       SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 4),
+       SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 5),
+       SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 6),
+       SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 7),
+       SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 8),
+       SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 9),
+};
+
+static struct sensor_device_attribute sda_in_max[] = {
+       SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 0),
+       SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 1),
+       SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 2),
+       SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 3),
+       SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 4),
+       SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 5),
+       SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 6),
+       SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 7),
+       SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 8),
+       SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 9),
+};
+
+#define show_fan_reg(reg) \
+static ssize_t \
+show_##reg(struct device *dev, struct device_attribute *attr, \
+	   char *buf) \
+{ \
+	struct w83627ehf_data *data = w83627ehf_update_device(dev); \
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
+	int nr = sensor_attr->index; \
+	return sprintf(buf, "%d\n", \
+		       fan_from_reg(data->reg[nr], \
+				    div_from_reg(data->fan_div[nr]))); \
+}
+show_fan_reg(fan);
+show_fan_reg(fan_min);
+
+static ssize_t
+show_fan_div(struct device *dev, struct device_attribute *attr,
+	     char *buf)
+{
+	struct w83627ehf_data *data = w83627ehf_update_device(dev);
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	return sprintf(buf, "%u\n", div_from_reg(data->fan_div[nr]));
+}
+
+static ssize_t
+store_fan_min(struct device *dev, struct device_attribute *attr,
+	      const char *buf, size_t count)
+{
+	struct w83627ehf_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	unsigned int val = simple_strtoul(buf, NULL, 10);
+	unsigned int reg;
+	u8 new_div;
+
+	mutex_lock(&data->update_lock);
+	if (!val) {
+		/* No min limit, alarm disabled */
+		data->fan_min[nr] = 255;
+		new_div = data->fan_div[nr]; /* No change */
+		dev_info(dev, "fan%u low limit and alarm disabled\n", nr + 1);
+	} else if ((reg = 1350000U / val) >= 128 * 255) {
+		/* Speed below this value cannot possibly be represented,
+		   even with the highest divider (128) */
+		data->fan_min[nr] = 254;
+		new_div = 7; /* 128 == (1 << 7) */
+		dev_warn(dev, "fan%u low limit %u below minimum %u, set to "
+			 "minimum\n", nr + 1, val, fan_from_reg(254, 128));
+	} else if (!reg) {
+		/* Speed above this value cannot possibly be represented,
+		   even with the lowest divider (1) */
+		data->fan_min[nr] = 1;
+		new_div = 0; /* 1 == (1 << 0) */
+		dev_warn(dev, "fan%u low limit %u above maximum %u, set to "
+			 "maximum\n", nr + 1, val, fan_from_reg(1, 1));
+	} else {
+		/* Automatically pick the best divider, i.e. the one such
+		   that the min limit will correspond to a register value
+		   in the 96..192 range */
+		new_div = 0;
+		while (reg > 192 && new_div < 7) {
+			reg >>= 1;
+			new_div++;
+		}
+		data->fan_min[nr] = reg;
+	}
+
+	/* Write both the fan clock divider (if it changed) and the new
+	   fan min (unconditionally) */
+	if (new_div != data->fan_div[nr]) {
+		/* Preserve the fan speed reading */
+		if (data->fan[nr] != 0xff) {
+			if (new_div > data->fan_div[nr])
+				data->fan[nr] >>= new_div - data->fan_div[nr];
+			else if (data->fan[nr] & 0x80)
+				data->fan[nr] = 0xff;
+			else
+				data->fan[nr] <<= data->fan_div[nr] - new_div;
+		}
+
+		dev_dbg(dev, "fan%u clock divider changed from %u to %u\n",
+			nr + 1, div_from_reg(data->fan_div[nr]),
+			div_from_reg(new_div));
+		data->fan_div[nr] = new_div;
+		w83627ehf_write_fan_div(data, nr);
+		/* Give the chip time to sample a new speed value */
+		data->last_updated = jiffies;
+	}
+	w83627ehf_write_value(data, W83627EHF_REG_FAN_MIN[nr],
+			      data->fan_min[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static struct sensor_device_attribute sda_fan_input[] = {
+	SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
+	SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
+	SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2),
+	SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3),
+	SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4),
+};
+
+static struct sensor_device_attribute sda_fan_alarm[] = {
+	SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6),
+	SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7),
+	SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11),
+	SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 10),
+	SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 23),
+};
+
+static struct sensor_device_attribute sda_fan_min[] = {
+	SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min,
+		    store_fan_min, 0),
+	SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min,
+		    store_fan_min, 1),
+	SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min,
+		    store_fan_min, 2),
+	SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min,
+		    store_fan_min, 3),
+	SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO, show_fan_min,
+		    store_fan_min, 4),
+};
+
+static struct sensor_device_attribute sda_fan_div[] = {
+	SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
+	SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
+	SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
+	SENSOR_ATTR(fan4_div, S_IRUGO, show_fan_div, NULL, 3),
+	SENSOR_ATTR(fan5_div, S_IRUGO, show_fan_div, NULL, 4),
+};
+
+#define show_temp1_reg(reg) \
+static ssize_t \
+show_##reg(struct device *dev, struct device_attribute *attr, \
+	   char *buf) \
+{ \
+	struct w83627ehf_data *data = w83627ehf_update_device(dev); \
+	return sprintf(buf, "%d\n", temp1_from_reg(data->reg)); \
+}
+show_temp1_reg(temp1);
+show_temp1_reg(temp1_max);
+show_temp1_reg(temp1_max_hyst);
+
+#define store_temp1_reg(REG, reg) \
+static ssize_t \
+store_temp1_##reg(struct device *dev, struct device_attribute *attr, \
+		  const char *buf, size_t count) \
+{ \
+	struct w83627ehf_data *data = dev_get_drvdata(dev); \
+	long val = simple_strtol(buf, NULL, 10); \
+ \
+	mutex_lock(&data->update_lock); \
+	data->temp1_##reg = temp1_to_reg(val, -128000, 127000); \
+	w83627ehf_write_value(data, W83627EHF_REG_TEMP1_##REG, \
+			      data->temp1_##reg); \
+	mutex_unlock(&data->update_lock); \
+	return count; \
+}
+store_temp1_reg(OVER, max);
+store_temp1_reg(HYST, max_hyst);
+
+#define show_temp_reg(reg) \
+static ssize_t \
+show_##reg(struct device *dev, struct device_attribute *attr, \
+	   char *buf) \
+{ \
+	struct w83627ehf_data *data = w83627ehf_update_device(dev); \
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
+	int nr = sensor_attr->index; \
+	return sprintf(buf, "%d\n", \
+		       LM75_TEMP_FROM_REG(data->reg[nr])); \
+}
+show_temp_reg(temp);
+show_temp_reg(temp_max);
+show_temp_reg(temp_max_hyst);
+
+#define store_temp_reg(REG, reg) \
+static ssize_t \
+store_##reg(struct device *dev, struct device_attribute *attr, \
+	    const char *buf, size_t count) \
+{ \
+	struct w83627ehf_data *data = dev_get_drvdata(dev); \
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
+	int nr = sensor_attr->index; \
+	long val = simple_strtol(buf, NULL, 10); \
+ \
+	mutex_lock(&data->update_lock); \
+	data->reg[nr] = LM75_TEMP_TO_REG(val); \
+	w83627ehf_write_value(data, W83627EHF_REG_TEMP_##REG[nr], \
+			      data->reg[nr]); \
+	mutex_unlock(&data->update_lock); \
+	return count; \
+}
+store_temp_reg(OVER, temp_max);
+store_temp_reg(HYST, temp_max_hyst);
+
+static ssize_t
+show_temp_type(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83627ehf_data *data = w83627ehf_update_device(dev);
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	return sprintf(buf, "%d\n", (int)data->temp_type[nr]);
+}
+
+static struct sensor_device_attribute sda_temp[] = {
+	SENSOR_ATTR(temp1_input, S_IRUGO, show_temp1, NULL, 0),
+	SENSOR_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 0),
+	SENSOR_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 1),
+	SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR, show_temp1_max,
+		    store_temp1_max, 0),
+	SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR, show_temp_max,
+		    store_temp_max, 0),
+	SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR, show_temp_max,
+		    store_temp_max, 1),
+	SENSOR_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp1_max_hyst,
+		    store_temp1_max_hyst, 0),
+	SENSOR_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
+		    store_temp_max_hyst, 0),
+	SENSOR_ATTR(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
+		    store_temp_max_hyst, 1),
+	SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4),
+	SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5),
+	SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
+	SENSOR_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0),
+	SENSOR_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1),
+	SENSOR_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2),
+};
+
+#define show_pwm_reg(reg) \
+static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \
+				char *buf) \
+{ \
+	struct w83627ehf_data *data = w83627ehf_update_device(dev); \
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
+	int nr = sensor_attr->index; \
+	return sprintf(buf, "%d\n", data->reg[nr]); \
+}
+
+show_pwm_reg(pwm_mode)
+show_pwm_reg(pwm_enable)
+show_pwm_reg(pwm)
+
+static ssize_t
+store_pwm_mode(struct device *dev, struct device_attribute *attr,
+			const char *buf, size_t count)
+{
+	struct w83627ehf_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	u32 val = simple_strtoul(buf, NULL, 10);
+	u16 reg;
+
+	if (val > 1)
+		return -EINVAL;
+	mutex_lock(&data->update_lock);
+	reg = w83627ehf_read_value(data, W83627EHF_REG_PWM_ENABLE[nr]);
+	data->pwm_mode[nr] = val;
+	reg &= ~(1 << W83627EHF_PWM_MODE_SHIFT[nr]);
+	if (!val)
+		reg |= 1 << W83627EHF_PWM_MODE_SHIFT[nr];
+	w83627ehf_write_value(data, W83627EHF_REG_PWM_ENABLE[nr], reg);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t
+store_pwm(struct device *dev, struct device_attribute *attr,
+			const char *buf, size_t count)
+{
+	struct w83627ehf_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	u32 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255);
+
+	mutex_lock(&data->update_lock);
+	data->pwm[nr] = val;
+	w83627ehf_write_value(data, W83627EHF_REG_PWM[nr], val);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t
+store_pwm_enable(struct device *dev, struct device_attribute *attr,
+			const char *buf, size_t count)
+{
+	struct w83627ehf_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	u32 val = simple_strtoul(buf, NULL, 10);
+	u16 reg;
+
+	if (!val || (val > 2))	/* only modes 1 and 2 are supported */
+		return -EINVAL;
+	mutex_lock(&data->update_lock);
+	reg = w83627ehf_read_value(data, W83627EHF_REG_PWM_ENABLE[nr]);
+	data->pwm_enable[nr] = val;
+	reg &= ~(0x03 << W83627EHF_PWM_ENABLE_SHIFT[nr]);
+	reg |= (val - 1) << W83627EHF_PWM_ENABLE_SHIFT[nr];
+	w83627ehf_write_value(data, W83627EHF_REG_PWM_ENABLE[nr], reg);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+
+#define show_tol_temp(reg) \
+static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
+				char *buf) \
+{ \
+	struct w83627ehf_data *data = w83627ehf_update_device(dev); \
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
+	int nr = sensor_attr->index; \
+	return sprintf(buf, "%d\n", temp1_from_reg(data->reg[nr])); \
+}
+
+show_tol_temp(tolerance)
+show_tol_temp(target_temp)
+
+static ssize_t
+store_target_temp(struct device *dev, struct device_attribute *attr,
+			const char *buf, size_t count)
+{
+	struct w83627ehf_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	u8 val = temp1_to_reg(simple_strtoul(buf, NULL, 10), 0, 127000);
+
+	mutex_lock(&data->update_lock);
+	data->target_temp[nr] = val;
+	w83627ehf_write_value(data, W83627EHF_REG_TARGET[nr], val);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t
+store_tolerance(struct device *dev, struct device_attribute *attr,
+			const char *buf, size_t count)
+{
+	struct w83627ehf_data *data = dev_get_drvdata(dev);
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	u16 reg;
+	/* Limit the temp to 0C - 15C */
+	u8 val = temp1_to_reg(simple_strtoul(buf, NULL, 10), 0, 15000);
+
+	mutex_lock(&data->update_lock);
+	reg = w83627ehf_read_value(data, W83627EHF_REG_TOLERANCE[nr]);
+	data->tolerance[nr] = val;
+	if (nr == 1)
+		reg = (reg & 0x0f) | (val << 4);
+	else
+		reg = (reg & 0xf0) | val;
+	w83627ehf_write_value(data, W83627EHF_REG_TOLERANCE[nr], reg);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static struct sensor_device_attribute sda_pwm[] = {
+	SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0),
+	SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1),
+	SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2),
+	SENSOR_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3),
+};
+
+static struct sensor_device_attribute sda_pwm_mode[] = {
+	SENSOR_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
+		    store_pwm_mode, 0),
+	SENSOR_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
+		    store_pwm_mode, 1),
+	SENSOR_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
+		    store_pwm_mode, 2),
+	SENSOR_ATTR(pwm4_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
+		    store_pwm_mode, 3),
+};
+
+static struct sensor_device_attribute sda_pwm_enable[] = {
+	SENSOR_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
+		    store_pwm_enable, 0),
+	SENSOR_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
+		    store_pwm_enable, 1),
+	SENSOR_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
+		    store_pwm_enable, 2),
+	SENSOR_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
+		    store_pwm_enable, 3),
+};
+
+static struct sensor_device_attribute sda_target_temp[] = {
+	SENSOR_ATTR(pwm1_target, S_IWUSR | S_IRUGO, show_target_temp,
+		    store_target_temp, 0),
+	SENSOR_ATTR(pwm2_target, S_IWUSR | S_IRUGO, show_target_temp,
+		    store_target_temp, 1),
+	SENSOR_ATTR(pwm3_target, S_IWUSR | S_IRUGO, show_target_temp,
+		    store_target_temp, 2),
+	SENSOR_ATTR(pwm4_target, S_IWUSR | S_IRUGO, show_target_temp,
+		    store_target_temp, 3),
+};
+
+static struct sensor_device_attribute sda_tolerance[] = {
+	SENSOR_ATTR(pwm1_tolerance, S_IWUSR | S_IRUGO, show_tolerance,
+		    store_tolerance, 0),
+	SENSOR_ATTR(pwm2_tolerance, S_IWUSR | S_IRUGO, show_tolerance,
+		    store_tolerance, 1),
+	SENSOR_ATTR(pwm3_tolerance, S_IWUSR | S_IRUGO, show_tolerance,
+		    store_tolerance, 2),
+	SENSOR_ATTR(pwm4_tolerance, S_IWUSR | S_IRUGO, show_tolerance,
+		    store_tolerance, 3),
+};
+
+/* Smart Fan registers */
+
+#define fan_functions(reg, REG) \
+static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
+		       char *buf) \
+{ \
+	struct w83627ehf_data *data = w83627ehf_update_device(dev); \
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
+	int nr = sensor_attr->index; \
+	return sprintf(buf, "%d\n", data->reg[nr]); \
+}\
+static ssize_t \
+store_##reg(struct device *dev, struct device_attribute *attr, \
+			    const char *buf, size_t count) \
+{\
+	struct w83627ehf_data *data = dev_get_drvdata(dev); \
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
+	int nr = sensor_attr->index; \
+	u32 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 1, 255); \
+	mutex_lock(&data->update_lock); \
+	data->reg[nr] = val; \
+	w83627ehf_write_value(data, W83627EHF_REG_##REG[nr], val); \
+	mutex_unlock(&data->update_lock); \
+	return count; \
+}
+
+fan_functions(fan_min_output, FAN_MIN_OUTPUT)
+
+#define fan_time_functions(reg, REG) \
+static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
+				char *buf) \
+{ \
+	struct w83627ehf_data *data = w83627ehf_update_device(dev); \
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
+	int nr = sensor_attr->index; \
+	return sprintf(buf, "%d\n", \
+			step_time_from_reg(data->reg[nr], data->pwm_mode[nr])); \
+} \
+\
+static ssize_t \
+store_##reg(struct device *dev, struct device_attribute *attr, \
+			const char *buf, size_t count) \
+{ \
+	struct w83627ehf_data *data = dev_get_drvdata(dev); \
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
+	int nr = sensor_attr->index; \
+	u8 val = step_time_to_reg(simple_strtoul(buf, NULL, 10), \
+					data->pwm_mode[nr]); \
+	mutex_lock(&data->update_lock); \
+	data->reg[nr] = val; \
+	w83627ehf_write_value(data, W83627EHF_REG_##REG[nr], val); \
+	mutex_unlock(&data->update_lock); \
+	return count; \
+} \
+
+fan_time_functions(fan_stop_time, FAN_STOP_TIME)
+
+static ssize_t show_name(struct device *dev, struct device_attribute *attr,
+			 char *buf)
+{
+	struct w83627ehf_data *data = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%s\n", data->name);
+}
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+
+static struct sensor_device_attribute sda_sf3_arrays_fan4[] = {
+	SENSOR_ATTR(pwm4_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time,
+		    store_fan_stop_time, 3),
+	SENSOR_ATTR(pwm4_min_output, S_IWUSR | S_IRUGO, show_fan_min_output,
+		    store_fan_min_output, 3),
+};
+
+static struct sensor_device_attribute sda_sf3_arrays[] = {
+	SENSOR_ATTR(pwm1_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time,
+		    store_fan_stop_time, 0),
+	SENSOR_ATTR(pwm2_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time,
+		    store_fan_stop_time, 1),
+	SENSOR_ATTR(pwm3_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time,
+		    store_fan_stop_time, 2),
+	SENSOR_ATTR(pwm1_min_output, S_IWUSR | S_IRUGO, show_fan_min_output,
+		    store_fan_min_output, 0),
+	SENSOR_ATTR(pwm2_min_output, S_IWUSR | S_IRUGO, show_fan_min_output,
+		    store_fan_min_output, 1),
+	SENSOR_ATTR(pwm3_min_output, S_IWUSR | S_IRUGO, show_fan_min_output,
+		    store_fan_min_output, 2),
+};
+
+static ssize_t
+show_vid(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83627ehf_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
+}
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
+
+/*
+ * Driver and device management
+ */
+
+static void w83627ehf_device_remove_files(struct device *dev)
+{
+	/* some entries in the following arrays may not have been used in
+	 * device_create_file(), but device_remove_file() will ignore them */
+	int i;
+	struct w83627ehf_data *data = dev_get_drvdata(dev);
+
+	for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays); i++)
+		device_remove_file(dev, &sda_sf3_arrays[i].dev_attr);
+	for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan4); i++)
+		device_remove_file(dev, &sda_sf3_arrays_fan4[i].dev_attr);
+	for (i = 0; i < data->in_num; i++) {
+		device_remove_file(dev, &sda_in_input[i].dev_attr);
+		device_remove_file(dev, &sda_in_alarm[i].dev_attr);
+		device_remove_file(dev, &sda_in_min[i].dev_attr);
+		device_remove_file(dev, &sda_in_max[i].dev_attr);
+	}
+	for (i = 0; i < 5; i++) {
+		device_remove_file(dev, &sda_fan_input[i].dev_attr);
+		device_remove_file(dev, &sda_fan_alarm[i].dev_attr);
+		device_remove_file(dev, &sda_fan_div[i].dev_attr);
+		device_remove_file(dev, &sda_fan_min[i].dev_attr);
+	}
+	for (i = 0; i < 4; i++) {
+		device_remove_file(dev, &sda_pwm[i].dev_attr);
+		device_remove_file(dev, &sda_pwm_mode[i].dev_attr);
+		device_remove_file(dev, &sda_pwm_enable[i].dev_attr);
+		device_remove_file(dev, &sda_target_temp[i].dev_attr);
+		device_remove_file(dev, &sda_tolerance[i].dev_attr);
+	}
+	for (i = 0; i < ARRAY_SIZE(sda_temp); i++)
+		device_remove_file(dev, &sda_temp[i].dev_attr);
+
+	device_remove_file(dev, &dev_attr_name);
+	device_remove_file(dev, &dev_attr_cpu0_vid);
+}
+
+/* Get the monitoring functions started */
+static inline void __devinit w83627ehf_init_device(struct w83627ehf_data *data)
+{
+	int i;
+	u8 tmp, diode;
+
+	/* Start monitoring is needed */
+	tmp = w83627ehf_read_value(data, W83627EHF_REG_CONFIG);
+	if (!(tmp & 0x01))
+		w83627ehf_write_value(data, W83627EHF_REG_CONFIG,
+				      tmp | 0x01);
+
+	/* Enable temp2 and temp3 if needed */
+	for (i = 0; i < 2; i++) {
+		tmp = w83627ehf_read_value(data,
+					   W83627EHF_REG_TEMP_CONFIG[i]);
+		if (tmp & 0x01)
+			w83627ehf_write_value(data,
+					      W83627EHF_REG_TEMP_CONFIG[i],
+					      tmp & 0xfe);
+	}
+
+	/* Enable VBAT monitoring if needed */
+	tmp = w83627ehf_read_value(data, W83627EHF_REG_VBAT);
+	if (!(tmp & 0x01))
+		w83627ehf_write_value(data, W83627EHF_REG_VBAT, tmp | 0x01);
+
+	/* Get thermal sensor types */
+	diode = w83627ehf_read_value(data, W83627EHF_REG_DIODE);
+	for (i = 0; i < 3; i++) {
+		if ((tmp & (0x02 << i)))
+			data->temp_type[i] = (diode & (0x10 << i)) ? 1 : 2;
+		else
+			data->temp_type[i] = 4; /* thermistor */
+	}
+}
+
+static int __devinit w83627ehf_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct w83627ehf_sio_data *sio_data = dev->platform_data;
+	struct w83627ehf_data *data;
+	struct resource *res;
+	u8 fan4pin, fan5pin, en_vrm10;
+	int i, err = 0;
+
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	if (!request_region(res->start, IOREGION_LENGTH, DRVNAME)) {
+		err = -EBUSY;
+		dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
+			(unsigned long)res->start,
+			(unsigned long)res->start + IOREGION_LENGTH - 1);
+		goto exit;
+	}
+
+	if (!(data = kzalloc(sizeof(struct w83627ehf_data), GFP_KERNEL))) {
+		err = -ENOMEM;
+		goto exit_release;
+	}
+
+	data->addr = res->start;
+	mutex_init(&data->lock);
+	mutex_init(&data->update_lock);
+	data->name = w83627ehf_device_names[sio_data->kind];
+	platform_set_drvdata(pdev, data);
+
+	/* 627EHG and 627EHF have 10 voltage inputs; DHG has 9 */
+	data->in_num = (sio_data->kind == w83627dhg) ? 9 : 10;
+
+	/* Initialize the chip */
+	w83627ehf_init_device(data);
+
+	data->vrm = vid_which_vrm();
+	superio_enter(sio_data->sioreg);
+	/* Read VID value */
+	superio_select(sio_data->sioreg, W83627EHF_LD_HWM);
+	if (superio_inb(sio_data->sioreg, SIO_REG_VID_CTRL) & 0x80) {
+		/* Set VID input sensibility if needed. In theory the BIOS
+		   should have set it, but in practice it's not always the
+		   case. We only do it for the W83627EHF/EHG because the
+		   W83627DHG is more complex in this respect. */
+		if (sio_data->kind == w83627ehf) {
+			en_vrm10 = superio_inb(sio_data->sioreg,
+					       SIO_REG_EN_VRM10);
+			if ((en_vrm10 & 0x08) && data->vrm == 90) {
+				dev_warn(dev, "Setting VID input voltage to "
+					 "TTL\n");
+				superio_outb(sio_data->sioreg, SIO_REG_EN_VRM10,
+					     en_vrm10 & ~0x08);
+			} else if (!(en_vrm10 & 0x08) && data->vrm == 100) {
+				dev_warn(dev, "Setting VID input voltage to "
+					 "VRM10\n");
+				superio_outb(sio_data->sioreg, SIO_REG_EN_VRM10,
+					     en_vrm10 | 0x08);
+			}
+		}
+
+		data->vid = superio_inb(sio_data->sioreg, SIO_REG_VID_DATA);
+		if (sio_data->kind == w83627ehf) /* 6 VID pins only */
+			data->vid &= 0x3f;
+
+		err = device_create_file(dev, &dev_attr_cpu0_vid);
+		if (err)
+			goto exit_release;
+	} else {
+		dev_info(dev, "VID pins in output mode, CPU VID not "
+			 "available\n");
+	}
+
+	/* fan4 and fan5 share some pins with the GPIO and serial flash */
+
+	fan5pin = superio_inb(sio_data->sioreg, 0x24) & 0x2;
+	fan4pin = superio_inb(sio_data->sioreg, 0x29) & 0x6;
+	superio_exit(sio_data->sioreg);
+
+	/* It looks like fan4 and fan5 pins can be alternatively used
+	   as fan on/off switches, but fan5 control is write only :/
+	   We assume that if the serial interface is disabled, designers
+	   connected fan5 as input unless they are emitting log 1, which
+	   is not the default. */
+
+	data->has_fan = 0x07; /* fan1, fan2 and fan3 */
+	i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV1);
+	if ((i & (1 << 2)) && (!fan4pin))
+		data->has_fan |= (1 << 3);
+	if (!(i & (1 << 1)) && (!fan5pin))
+		data->has_fan |= (1 << 4);
+
+	/* Read fan clock dividers immediately */
+	w83627ehf_update_fan_div(data);
+
+	/* Register sysfs hooks */
+  	for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays); i++)
+		if ((err = device_create_file(dev,
+			&sda_sf3_arrays[i].dev_attr)))
+			goto exit_remove;
+
+	/* if fan4 is enabled create the sf3 files for it */
+	if (data->has_fan & (1 << 3))
+		for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan4); i++) {
+			if ((err = device_create_file(dev,
+				&sda_sf3_arrays_fan4[i].dev_attr)))
+				goto exit_remove;
+		}
+
+	for (i = 0; i < data->in_num; i++)
+		if ((err = device_create_file(dev, &sda_in_input[i].dev_attr))
+			|| (err = device_create_file(dev,
+				&sda_in_alarm[i].dev_attr))
+			|| (err = device_create_file(dev,
+				&sda_in_min[i].dev_attr))
+			|| (err = device_create_file(dev,
+				&sda_in_max[i].dev_attr)))
+			goto exit_remove;
+
+	for (i = 0; i < 5; i++) {
+		if (data->has_fan & (1 << i)) {
+			if ((err = device_create_file(dev,
+					&sda_fan_input[i].dev_attr))
+				|| (err = device_create_file(dev,
+					&sda_fan_alarm[i].dev_attr))
+				|| (err = device_create_file(dev,
+					&sda_fan_div[i].dev_attr))
+				|| (err = device_create_file(dev,
+					&sda_fan_min[i].dev_attr)))
+				goto exit_remove;
+			if (i < 4 && /* w83627ehf only has 4 pwm */
+				((err = device_create_file(dev,
+					&sda_pwm[i].dev_attr))
+				|| (err = device_create_file(dev,
+					&sda_pwm_mode[i].dev_attr))
+				|| (err = device_create_file(dev,
+					&sda_pwm_enable[i].dev_attr))
+				|| (err = device_create_file(dev,
+					&sda_target_temp[i].dev_attr))
+				|| (err = device_create_file(dev,
+					&sda_tolerance[i].dev_attr))))
+				goto exit_remove;
+		}
+	}
+
+	for (i = 0; i < ARRAY_SIZE(sda_temp); i++)
+		if ((err = device_create_file(dev, &sda_temp[i].dev_attr)))
+			goto exit_remove;
+
+	err = device_create_file(dev, &dev_attr_name);
+	if (err)
+		goto exit_remove;
+
+	data->hwmon_dev = hwmon_device_register(dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	return 0;
+
+exit_remove:
+	w83627ehf_device_remove_files(dev);
+	kfree(data);
+	platform_set_drvdata(pdev, NULL);
+exit_release:
+	release_region(res->start, IOREGION_LENGTH);
+exit:
+	return err;
+}
+
+static int __devexit w83627ehf_remove(struct platform_device *pdev)
+{
+	struct w83627ehf_data *data = platform_get_drvdata(pdev);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	w83627ehf_device_remove_files(&pdev->dev);
+	release_region(data->addr, IOREGION_LENGTH);
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+
+	return 0;
+}
+
+static struct platform_driver w83627ehf_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= DRVNAME,
+	},
+	.probe		= w83627ehf_probe,
+	.remove		= __devexit_p(w83627ehf_remove),
+};
+
+/* w83627ehf_find() looks for a '627 in the Super-I/O config space */
+static int __init w83627ehf_find(int sioaddr, unsigned short *addr,
+				 struct w83627ehf_sio_data *sio_data)
+{
+	static const char __initdata sio_name_W83627EHF[] = "W83627EHF";
+	static const char __initdata sio_name_W83627EHG[] = "W83627EHG";
+	static const char __initdata sio_name_W83627DHG[] = "W83627DHG";
+
+	u16 val;
+	const char *sio_name;
+
+	superio_enter(sioaddr);
+
+	if (force_id)
+		val = force_id;
+	else
+		val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
+		    | superio_inb(sioaddr, SIO_REG_DEVID + 1);
+	switch (val & SIO_ID_MASK) {
+	case SIO_W83627EHF_ID:
+		sio_data->kind = w83627ehf;
+		sio_name = sio_name_W83627EHF;
+		break;
+	case SIO_W83627EHG_ID:
+		sio_data->kind = w83627ehf;
+		sio_name = sio_name_W83627EHG;
+		break;
+	case SIO_W83627DHG_ID:
+		sio_data->kind = w83627dhg;
+		sio_name = sio_name_W83627DHG;
+		break;
+	default:
+		if (val != 0xffff)
+			pr_debug(DRVNAME ": unsupported chip ID: 0x%04x\n",
+				 val);
+		superio_exit(sioaddr);
+		return -ENODEV;
+	}
+
+	/* We have a known chip, find the HWM I/O address */
+	superio_select(sioaddr, W83627EHF_LD_HWM);
+	val = (superio_inb(sioaddr, SIO_REG_ADDR) << 8)
+	    | superio_inb(sioaddr, SIO_REG_ADDR + 1);
+	*addr = val & IOREGION_ALIGNMENT;
+	if (*addr == 0) {
+		printk(KERN_ERR DRVNAME ": Refusing to enable a Super-I/O "
+		       "device with a base I/O port 0.\n");
+		superio_exit(sioaddr);
+		return -ENODEV;
+	}
+
+	/* Activate logical device if needed */
+	val = superio_inb(sioaddr, SIO_REG_ENABLE);
+	if (!(val & 0x01)) {
+		printk(KERN_WARNING DRVNAME ": Forcibly enabling Super-I/O. "
+		       "Sensor is probably unusable.\n");
+		superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01);
+	}
+
+	superio_exit(sioaddr);
+	pr_info(DRVNAME ": Found %s chip at %#x\n", sio_name, *addr);
+	sio_data->sioreg = sioaddr;
+
+	return 0;
+}
+
+/* when Super-I/O functions move to a separate file, the Super-I/O
+ * bus will manage the lifetime of the device and this module will only keep
+ * track of the w83627ehf driver. But since we platform_device_alloc(), we
+ * must keep track of the device */
+static struct platform_device *pdev;
+
+static int __init sensors_w83627ehf_init(void)
+{
+	int err;
+	unsigned short address;
+	struct resource res;
+	struct w83627ehf_sio_data sio_data;
+
+	/* initialize sio_data->kind and sio_data->sioreg.
+	 *
+	 * when Super-I/O functions move to a separate file, the Super-I/O
+	 * driver will probe 0x2e and 0x4e and auto-detect the presence of a
+	 * w83627ehf hardware monitor, and call probe() */
+	if (w83627ehf_find(0x2e, &address, &sio_data) &&
+	    w83627ehf_find(0x4e, &address, &sio_data))
+		return -ENODEV;
+
+	err = platform_driver_register(&w83627ehf_driver);
+	if (err)
+		goto exit;
+
+	if (!(pdev = platform_device_alloc(DRVNAME, address))) {
+		err = -ENOMEM;
+		printk(KERN_ERR DRVNAME ": Device allocation failed\n");
+		goto exit_unregister;
+	}
+
+	err = platform_device_add_data(pdev, &sio_data,
+				       sizeof(struct w83627ehf_sio_data));
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Platform data allocation failed\n");
+		goto exit_device_put;
+	}
+
+	memset(&res, 0, sizeof(res));
+	res.name = DRVNAME;
+	res.start = address + IOREGION_OFFSET;
+	res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
+	res.flags = IORESOURCE_IO;
+	err = platform_device_add_resources(pdev, &res, 1);
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Device resource addition failed "
+		       "(%d)\n", err);
+		goto exit_device_put;
+	}
+
+	/* platform_device_add calls probe() */
+	err = platform_device_add(pdev);
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",
+		       err);
+		goto exit_device_put;
+	}
+
+	return 0;
+
+exit_device_put:
+	platform_device_put(pdev);
+exit_unregister:
+	platform_driver_unregister(&w83627ehf_driver);
+exit:
+	return err;
+}
+
+static void __exit sensors_w83627ehf_exit(void)
+{
+	platform_device_unregister(pdev);
+	platform_driver_unregister(&w83627ehf_driver);
+}
+
+MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
+MODULE_DESCRIPTION("W83627EHF driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_w83627ehf_init);
+module_exit(sensors_w83627ehf_exit);
diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c
new file mode 100644
index 0000000..b30e579
--- /dev/null
+++ b/drivers/hwmon/w83627hf.c
@@ -0,0 +1,1872 @@
+/*
+    w83627hf.c - Part of lm_sensors, Linux kernel modules for hardware
+                monitoring
+    Copyright (c) 1998 - 2003  Frodo Looijaard <frodol@dds.nl>,
+    Philip Edelbrock <phil@netroedge.com>,
+    and Mark Studebaker <mdsxyz123@yahoo.com>
+    Ported to 2.6 by Bernhard C. Schrenk <clemy@clemy.org>
+    Copyright (c) 2007  Jean Delvare <khali@linux-fr.org>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+    Supports following chips:
+
+    Chip	#vin	#fanin	#pwm	#temp	wchipid	vendid	i2c	ISA
+    w83627hf	9	3	2	3	0x20	0x5ca3	no	yes(LPC)
+    w83627thf	7	3	3	3	0x90	0x5ca3	no	yes(LPC)
+    w83637hf	7	3	3	3	0x80	0x5ca3	no	yes(LPC)
+    w83687thf	7	3	3	3	0x90	0x5ca3	no	yes(LPC)
+    w83697hf	8	2	2	2	0x60	0x5ca3	no	yes(LPC)
+
+    For other winbond chips, and for i2c support in the above chips,
+    use w83781d.c.
+
+    Note: automatic ("cruise") fan control for 697, 637 & 627thf not
+    supported yet.
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon-vid.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/ioport.h>
+#include <asm/io.h>
+#include "lm75.h"
+
+static struct platform_device *pdev;
+
+#define DRVNAME "w83627hf"
+enum chips { w83627hf, w83627thf, w83697hf, w83637hf, w83687thf };
+
+static u16 force_addr;
+module_param(force_addr, ushort, 0);
+MODULE_PARM_DESC(force_addr,
+		 "Initialize the base address of the sensors");
+static u8 force_i2c = 0x1f;
+module_param(force_i2c, byte, 0);
+MODULE_PARM_DESC(force_i2c,
+		 "Initialize the i2c address of the sensors");
+
+static int init = 1;
+module_param(init, bool, 0);
+MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization");
+
+static unsigned short force_id;
+module_param(force_id, ushort, 0);
+MODULE_PARM_DESC(force_id, "Override the detected device ID");
+
+/* modified from kernel/include/traps.c */
+static int REG;		/* The register to read/write */
+#define	DEV	0x07	/* Register: Logical device select */
+static int VAL;		/* The value to read/write */
+
+/* logical device numbers for superio_select (below) */
+#define W83627HF_LD_FDC		0x00
+#define W83627HF_LD_PRT		0x01
+#define W83627HF_LD_UART1	0x02
+#define W83627HF_LD_UART2	0x03
+#define W83627HF_LD_KBC		0x05
+#define W83627HF_LD_CIR		0x06 /* w83627hf only */
+#define W83627HF_LD_GAME	0x07
+#define W83627HF_LD_MIDI	0x07
+#define W83627HF_LD_GPIO1	0x07
+#define W83627HF_LD_GPIO5	0x07 /* w83627thf only */
+#define W83627HF_LD_GPIO2	0x08
+#define W83627HF_LD_GPIO3	0x09
+#define W83627HF_LD_GPIO4	0x09 /* w83627thf only */
+#define W83627HF_LD_ACPI	0x0a
+#define W83627HF_LD_HWM		0x0b
+
+#define	DEVID	0x20	/* Register: Device ID */
+
+#define W83627THF_GPIO5_EN	0x30 /* w83627thf only */
+#define W83627THF_GPIO5_IOSR	0xf3 /* w83627thf only */
+#define W83627THF_GPIO5_DR	0xf4 /* w83627thf only */
+
+#define W83687THF_VID_EN	0x29 /* w83687thf only */
+#define W83687THF_VID_CFG	0xF0 /* w83687thf only */
+#define W83687THF_VID_DATA	0xF1 /* w83687thf only */
+
+static inline void
+superio_outb(int reg, int val)
+{
+	outb(reg, REG);
+	outb(val, VAL);
+}
+
+static inline int
+superio_inb(int reg)
+{
+	outb(reg, REG);
+	return inb(VAL);
+}
+
+static inline void
+superio_select(int ld)
+{
+	outb(DEV, REG);
+	outb(ld, VAL);
+}
+
+static inline void
+superio_enter(void)
+{
+	outb(0x87, REG);
+	outb(0x87, REG);
+}
+
+static inline void
+superio_exit(void)
+{
+	outb(0xAA, REG);
+}
+
+#define W627_DEVID 0x52
+#define W627THF_DEVID 0x82
+#define W697_DEVID 0x60
+#define W637_DEVID 0x70
+#define W687THF_DEVID 0x85
+#define WINB_ACT_REG 0x30
+#define WINB_BASE_REG 0x60
+/* Constants specified below */
+
+/* Alignment of the base address */
+#define WINB_ALIGNMENT		~7
+
+/* Offset & size of I/O region we are interested in */
+#define WINB_REGION_OFFSET	5
+#define WINB_REGION_SIZE	2
+
+/* Where are the sensors address/data registers relative to the region offset */
+#define W83781D_ADDR_REG_OFFSET 0
+#define W83781D_DATA_REG_OFFSET 1
+
+/* The W83781D registers */
+/* The W83782D registers for nr=7,8 are in bank 5 */
+#define W83781D_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \
+					   (0x554 + (((nr) - 7) * 2)))
+#define W83781D_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \
+					   (0x555 + (((nr) - 7) * 2)))
+#define W83781D_REG_IN(nr)     ((nr < 7) ? (0x20 + (nr)) : \
+					   (0x550 + (nr) - 7))
+
+/* nr:0-2 for fans:1-3 */
+#define W83627HF_REG_FAN_MIN(nr)	(0x3b + (nr))
+#define W83627HF_REG_FAN(nr)		(0x28 + (nr))
+
+#define W83627HF_REG_TEMP2_CONFIG 0x152
+#define W83627HF_REG_TEMP3_CONFIG 0x252
+/* these are zero-based, unlike config constants above */
+static const u16 w83627hf_reg_temp[]		= { 0x27, 0x150, 0x250 };
+static const u16 w83627hf_reg_temp_hyst[]	= { 0x3A, 0x153, 0x253 };
+static const u16 w83627hf_reg_temp_over[]	= { 0x39, 0x155, 0x255 };
+
+#define W83781D_REG_BANK 0x4E
+
+#define W83781D_REG_CONFIG 0x40
+#define W83781D_REG_ALARM1 0x459
+#define W83781D_REG_ALARM2 0x45A
+#define W83781D_REG_ALARM3 0x45B
+
+#define W83781D_REG_BEEP_CONFIG 0x4D
+#define W83781D_REG_BEEP_INTS1 0x56
+#define W83781D_REG_BEEP_INTS2 0x57
+#define W83781D_REG_BEEP_INTS3 0x453
+
+#define W83781D_REG_VID_FANDIV 0x47
+
+#define W83781D_REG_CHIPID 0x49
+#define W83781D_REG_WCHIPID 0x58
+#define W83781D_REG_CHIPMAN 0x4F
+#define W83781D_REG_PIN 0x4B
+
+#define W83781D_REG_VBAT 0x5D
+
+#define W83627HF_REG_PWM1 0x5A
+#define W83627HF_REG_PWM2 0x5B
+
+static const u8 W83627THF_REG_PWM_ENABLE[] = {
+	0x04,		/* FAN 1 mode */
+	0x04,		/* FAN 2 mode */
+	0x12,		/* FAN AUX mode */
+};
+static const u8 W83627THF_PWM_ENABLE_SHIFT[] = { 2, 4, 1 };
+
+#define W83627THF_REG_PWM1		0x01	/* 697HF/637HF/687THF too */
+#define W83627THF_REG_PWM2		0x03	/* 697HF/637HF/687THF too */
+#define W83627THF_REG_PWM3		0x11	/* 637HF/687THF too */
+
+#define W83627THF_REG_VRM_OVT_CFG 	0x18	/* 637HF/687THF too */
+
+static const u8 regpwm_627hf[] = { W83627HF_REG_PWM1, W83627HF_REG_PWM2 };
+static const u8 regpwm[] = { W83627THF_REG_PWM1, W83627THF_REG_PWM2,
+                             W83627THF_REG_PWM3 };
+#define W836X7HF_REG_PWM(type, nr) (((type) == w83627hf) ? \
+				    regpwm_627hf[nr] : regpwm[nr])
+
+#define W83627HF_REG_PWM_FREQ		0x5C	/* Only for the 627HF */
+
+#define W83637HF_REG_PWM_FREQ1		0x00	/* 697HF/687THF too */
+#define W83637HF_REG_PWM_FREQ2		0x02	/* 697HF/687THF too */
+#define W83637HF_REG_PWM_FREQ3		0x10	/* 687THF too */
+
+static const u8 W83637HF_REG_PWM_FREQ[] = { W83637HF_REG_PWM_FREQ1,
+					W83637HF_REG_PWM_FREQ2,
+					W83637HF_REG_PWM_FREQ3 };
+
+#define W83627HF_BASE_PWM_FREQ	46870
+
+#define W83781D_REG_I2C_ADDR 0x48
+#define W83781D_REG_I2C_SUBADDR 0x4A
+
+/* Sensor selection */
+#define W83781D_REG_SCFG1 0x5D
+static const u8 BIT_SCFG1[] = { 0x02, 0x04, 0x08 };
+#define W83781D_REG_SCFG2 0x59
+static const u8 BIT_SCFG2[] = { 0x10, 0x20, 0x40 };
+#define W83781D_DEFAULT_BETA 3435
+
+/* Conversions. Limit checking is only done on the TO_REG
+   variants. Note that you should be a bit careful with which arguments
+   these macros are called: arguments may be evaluated more than once.
+   Fixing this is just not worth it. */
+#define IN_TO_REG(val)  (SENSORS_LIMIT((((val) + 8)/16),0,255))
+#define IN_FROM_REG(val) ((val) * 16)
+
+static inline u8 FAN_TO_REG(long rpm, int div)
+{
+	if (rpm == 0)
+		return 255;
+	rpm = SENSORS_LIMIT(rpm, 1, 1000000);
+	return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1,
+			     254);
+}
+
+#define TEMP_MIN (-128000)
+#define TEMP_MAX ( 127000)
+
+/* TEMP: 0.001C/bit (-128C to +127C)
+   REG: 1C/bit, two's complement */
+static u8 TEMP_TO_REG(long temp)
+{
+        int ntemp = SENSORS_LIMIT(temp, TEMP_MIN, TEMP_MAX);
+        ntemp += (ntemp<0 ? -500 : 500);
+        return (u8)(ntemp / 1000);
+}
+
+static int TEMP_FROM_REG(u8 reg)
+{
+        return (s8)reg * 1000;
+}
+
+#define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0:1350000/((val)*(div)))
+
+#define PWM_TO_REG(val) (SENSORS_LIMIT((val),0,255))
+
+static inline unsigned long pwm_freq_from_reg_627hf(u8 reg)
+{
+	unsigned long freq;
+	freq = W83627HF_BASE_PWM_FREQ >> reg;
+	return freq;
+}
+static inline u8 pwm_freq_to_reg_627hf(unsigned long val)
+{
+	u8 i;
+	/* Only 5 dividers (1 2 4 8 16)
+	   Search for the nearest available frequency */
+	for (i = 0; i < 4; i++) {
+		if (val > (((W83627HF_BASE_PWM_FREQ >> i) +
+			    (W83627HF_BASE_PWM_FREQ >> (i+1))) / 2))
+			break;
+	}
+	return i;
+}
+
+static inline unsigned long pwm_freq_from_reg(u8 reg)
+{
+	/* Clock bit 8 -> 180 kHz or 24 MHz */
+	unsigned long clock = (reg & 0x80) ? 180000UL : 24000000UL;
+
+	reg &= 0x7f;
+	/* This should not happen but anyway... */
+	if (reg == 0)
+		reg++;
+	return (clock / (reg << 8));
+}
+static inline u8 pwm_freq_to_reg(unsigned long val)
+{
+	/* Minimum divider value is 0x01 and maximum is 0x7F */
+	if (val >= 93750)	/* The highest we can do */
+		return 0x01;
+	if (val >= 720)	/* Use 24 MHz clock */
+		return (24000000UL / (val << 8));
+	if (val < 6)		/* The lowest we can do */
+		return 0xFF;
+	else			/* Use 180 kHz clock */
+		return (0x80 | (180000UL / (val << 8)));
+}
+
+#define BEEP_MASK_FROM_REG(val)		((val) & 0xff7fff)
+#define BEEP_MASK_TO_REG(val)		((val) & 0xff7fff)
+
+#define DIV_FROM_REG(val) (1 << (val))
+
+static inline u8 DIV_TO_REG(long val)
+{
+	int i;
+	val = SENSORS_LIMIT(val, 1, 128) >> 1;
+	for (i = 0; i < 7; i++) {
+		if (val == 0)
+			break;
+		val >>= 1;
+	}
+	return ((u8) i);
+}
+
+/* For each registered chip, we need to keep some data in memory.
+   The structure is dynamically allocated. */
+struct w83627hf_data {
+	unsigned short addr;
+	const char *name;
+	struct device *hwmon_dev;
+	struct mutex lock;
+	enum chips type;
+
+	struct mutex update_lock;
+	char valid;		/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+
+	u8 in[9];		/* Register value */
+	u8 in_max[9];		/* Register value */
+	u8 in_min[9];		/* Register value */
+	u8 fan[3];		/* Register value */
+	u8 fan_min[3];		/* Register value */
+	u16 temp[3];		/* Register value */
+	u16 temp_max[3];	/* Register value */
+	u16 temp_max_hyst[3];	/* Register value */
+	u8 fan_div[3];		/* Register encoding, shifted right */
+	u8 vid;			/* Register encoding, combined */
+	u32 alarms;		/* Register encoding, combined */
+	u32 beep_mask;		/* Register encoding, combined */
+	u8 pwm[3];		/* Register value */
+	u8 pwm_enable[3];	/* 1 = manual
+				   2 = thermal cruise (also called SmartFan I)
+				   3 = fan speed cruise */
+	u8 pwm_freq[3];		/* Register value */
+	u16 sens[3];		/* 1 = pentium diode; 2 = 3904 diode;
+				   4 = thermistor */
+	u8 vrm;
+	u8 vrm_ovt;		/* Register value, 627THF/637HF/687THF only */
+};
+
+struct w83627hf_sio_data {
+	enum chips type;
+};
+
+
+static int w83627hf_probe(struct platform_device *pdev);
+static int __devexit w83627hf_remove(struct platform_device *pdev);
+
+static int w83627hf_read_value(struct w83627hf_data *data, u16 reg);
+static int w83627hf_write_value(struct w83627hf_data *data, u16 reg, u16 value);
+static void w83627hf_update_fan_div(struct w83627hf_data *data);
+static struct w83627hf_data *w83627hf_update_device(struct device *dev);
+static void w83627hf_init_device(struct platform_device *pdev);
+
+static struct platform_driver w83627hf_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= DRVNAME,
+	},
+	.probe		= w83627hf_probe,
+	.remove		= __devexit_p(w83627hf_remove),
+};
+
+static ssize_t
+show_in_input(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%ld\n", (long)IN_FROM_REG(data->in[nr]));
+}
+static ssize_t
+show_in_min(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%ld\n", (long)IN_FROM_REG(data->in_min[nr]));
+}
+static ssize_t
+show_in_max(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%ld\n", (long)IN_FROM_REG(data->in_max[nr]));
+}
+static ssize_t
+store_in_min(struct device *dev, struct device_attribute *devattr,
+	     const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_min[nr] = IN_TO_REG(val);
+	w83627hf_write_value(data, W83781D_REG_IN_MIN(nr), data->in_min[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+static ssize_t
+store_in_max(struct device *dev, struct device_attribute *devattr,
+	     const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->in_max[nr] = IN_TO_REG(val);
+	w83627hf_write_value(data, W83781D_REG_IN_MAX(nr), data->in_max[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+#define sysfs_vin_decl(offset) \
+static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO,		\
+			  show_in_input, NULL, offset);		\
+static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO|S_IWUSR,	\
+			  show_in_min, store_in_min, offset);	\
+static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO|S_IWUSR,	\
+			  show_in_max, store_in_max, offset);
+
+sysfs_vin_decl(1);
+sysfs_vin_decl(2);
+sysfs_vin_decl(3);
+sysfs_vin_decl(4);
+sysfs_vin_decl(5);
+sysfs_vin_decl(6);
+sysfs_vin_decl(7);
+sysfs_vin_decl(8);
+
+/* use a different set of functions for in0 */
+static ssize_t show_in_0(struct w83627hf_data *data, char *buf, u8 reg)
+{
+	long in0;
+
+	if ((data->vrm_ovt & 0x01) &&
+		(w83627thf == data->type || w83637hf == data->type
+		 || w83687thf == data->type))
+
+		/* use VRM9 calculation */
+		in0 = (long)((reg * 488 + 70000 + 50) / 100);
+	else
+		/* use VRM8 (standard) calculation */
+		in0 = (long)IN_FROM_REG(reg);
+
+	return sprintf(buf,"%ld\n", in0);
+}
+
+static ssize_t show_regs_in_0(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return show_in_0(data, buf, data->in[0]);
+}
+
+static ssize_t show_regs_in_min0(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return show_in_0(data, buf, data->in_min[0]);
+}
+
+static ssize_t show_regs_in_max0(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return show_in_0(data, buf, data->in_max[0]);
+}
+
+static ssize_t store_regs_in_min0(struct device *dev, struct device_attribute *attr,
+	const char *buf, size_t count)
+{
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	u32 val;
+
+	val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	
+	if ((data->vrm_ovt & 0x01) &&
+		(w83627thf == data->type || w83637hf == data->type
+		 || w83687thf == data->type))
+
+		/* use VRM9 calculation */
+		data->in_min[0] =
+			SENSORS_LIMIT(((val * 100) - 70000 + 244) / 488, 0,
+					255);
+	else
+		/* use VRM8 (standard) calculation */
+		data->in_min[0] = IN_TO_REG(val);
+
+	w83627hf_write_value(data, W83781D_REG_IN_MIN(0), data->in_min[0]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t store_regs_in_max0(struct device *dev, struct device_attribute *attr,
+	const char *buf, size_t count)
+{
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	u32 val;
+
+	val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+
+	if ((data->vrm_ovt & 0x01) &&
+		(w83627thf == data->type || w83637hf == data->type
+		 || w83687thf == data->type))
+		
+		/* use VRM9 calculation */
+		data->in_max[0] =
+			SENSORS_LIMIT(((val * 100) - 70000 + 244) / 488, 0,
+					255);
+	else
+		/* use VRM8 (standard) calculation */
+		data->in_max[0] = IN_TO_REG(val);
+
+	w83627hf_write_value(data, W83781D_REG_IN_MAX(0), data->in_max[0]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(in0_input, S_IRUGO, show_regs_in_0, NULL);
+static DEVICE_ATTR(in0_min, S_IRUGO | S_IWUSR,
+	show_regs_in_min0, store_regs_in_min0);
+static DEVICE_ATTR(in0_max, S_IRUGO | S_IWUSR,
+	show_regs_in_max0, store_regs_in_max0);
+
+static ssize_t
+show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%ld\n", FAN_FROM_REG(data->fan[nr],
+				(long)DIV_FROM_REG(data->fan_div[nr])));
+}
+static ssize_t
+show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%ld\n", FAN_FROM_REG(data->fan_min[nr],
+				(long)DIV_FROM_REG(data->fan_div[nr])));
+}
+static ssize_t
+store_fan_min(struct device *dev, struct device_attribute *devattr,
+	      const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	u32 val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
+	w83627hf_write_value(data, W83627HF_REG_FAN_MIN(nr),
+			     data->fan_min[nr]);
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+#define sysfs_fan_decl(offset)	\
+static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO,			\
+			  show_fan_input, NULL, offset - 1);		\
+static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,		\
+			  show_fan_min, store_fan_min, offset - 1);
+
+sysfs_fan_decl(1);
+sysfs_fan_decl(2);
+sysfs_fan_decl(3);
+
+static ssize_t
+show_temp(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+
+	u16 tmp = data->temp[nr];
+	return sprintf(buf, "%ld\n", (nr) ? (long) LM75_TEMP_FROM_REG(tmp)
+					  : (long) TEMP_FROM_REG(tmp));
+}
+
+static ssize_t
+show_temp_max(struct device *dev, struct device_attribute *devattr,
+	      char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+
+	u16 tmp = data->temp_max[nr];
+	return sprintf(buf, "%ld\n", (nr) ? (long) LM75_TEMP_FROM_REG(tmp)
+					  : (long) TEMP_FROM_REG(tmp));
+}
+
+static ssize_t
+show_temp_max_hyst(struct device *dev, struct device_attribute *devattr,
+		   char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+
+	u16 tmp = data->temp_max_hyst[nr];
+	return sprintf(buf, "%ld\n", (nr) ? (long) LM75_TEMP_FROM_REG(tmp)
+					  : (long) TEMP_FROM_REG(tmp));
+}
+
+static ssize_t
+store_temp_max(struct device *dev, struct device_attribute *devattr,
+	       const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	long val = simple_strtol(buf, NULL, 10);
+	u16 tmp = (nr) ? LM75_TEMP_TO_REG(val) : TEMP_TO_REG(val);
+
+	mutex_lock(&data->update_lock);
+	data->temp_max[nr] = tmp;
+	w83627hf_write_value(data, w83627hf_reg_temp_over[nr], tmp);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t
+store_temp_max_hyst(struct device *dev, struct device_attribute *devattr,
+		    const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	long val = simple_strtol(buf, NULL, 10);
+	u16 tmp = (nr) ? LM75_TEMP_TO_REG(val) : TEMP_TO_REG(val);
+
+	mutex_lock(&data->update_lock);
+	data->temp_max_hyst[nr] = tmp;
+	w83627hf_write_value(data, w83627hf_reg_temp_hyst[nr], tmp);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define sysfs_temp_decl(offset) \
+static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO,		\
+			  show_temp, NULL, offset - 1);			\
+static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO|S_IWUSR,	 	\
+			  show_temp_max, store_temp_max, offset - 1);	\
+static SENSOR_DEVICE_ATTR(temp##offset##_max_hyst, S_IRUGO|S_IWUSR,	\
+			  show_temp_max_hyst, store_temp_max_hyst, offset - 1);
+
+sysfs_temp_decl(1);
+sysfs_temp_decl(2);
+sysfs_temp_decl(3);
+
+static ssize_t
+show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
+}
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
+
+static ssize_t
+show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%ld\n", (long) data->vrm);
+}
+static ssize_t
+store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	u32 val;
+
+	val = simple_strtoul(buf, NULL, 10);
+	data->vrm = val;
+
+	return count;
+}
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
+
+static ssize_t
+show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%ld\n", (long) data->alarms);
+}
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
+
+static ssize_t
+show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
+}
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 9);
+static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 10);
+static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 16);
+static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 17);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7);
+static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13);
+
+static ssize_t
+show_beep_mask(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%ld\n",
+		      (long)BEEP_MASK_FROM_REG(data->beep_mask));
+}
+
+static ssize_t
+store_beep_mask(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	unsigned long val;
+
+	val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+
+	/* preserve beep enable */
+	data->beep_mask = (data->beep_mask & 0x8000)
+			| BEEP_MASK_TO_REG(val);
+	w83627hf_write_value(data, W83781D_REG_BEEP_INTS1,
+			    data->beep_mask & 0xff);
+	w83627hf_write_value(data, W83781D_REG_BEEP_INTS3,
+			    ((data->beep_mask) >> 16) & 0xff);
+	w83627hf_write_value(data, W83781D_REG_BEEP_INTS2,
+			    (data->beep_mask >> 8) & 0xff);
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static DEVICE_ATTR(beep_mask, S_IRUGO | S_IWUSR,
+		   show_beep_mask, store_beep_mask);
+
+static ssize_t
+show_beep(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	return sprintf(buf, "%u\n", (data->beep_mask >> bitnr) & 1);
+}
+
+static ssize_t
+store_beep(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	unsigned long bit;
+	u8 reg;
+
+	bit = simple_strtoul(buf, NULL, 10);
+	if (bit & ~1)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	if (bit)
+		data->beep_mask |= (1 << bitnr);
+	else
+		data->beep_mask &= ~(1 << bitnr);
+
+	if (bitnr < 8) {
+		reg = w83627hf_read_value(data, W83781D_REG_BEEP_INTS1);
+		if (bit)
+			reg |= (1 << bitnr);
+		else
+			reg &= ~(1 << bitnr);
+		w83627hf_write_value(data, W83781D_REG_BEEP_INTS1, reg);
+	} else if (bitnr < 16) {
+		reg = w83627hf_read_value(data, W83781D_REG_BEEP_INTS2);
+		if (bit)
+			reg |= (1 << (bitnr - 8));
+		else
+			reg &= ~(1 << (bitnr - 8));
+		w83627hf_write_value(data, W83781D_REG_BEEP_INTS2, reg);
+	} else {
+		reg = w83627hf_read_value(data, W83781D_REG_BEEP_INTS3);
+		if (bit)
+			reg |= (1 << (bitnr - 16));
+		else
+			reg &= ~(1 << (bitnr - 16));
+		w83627hf_write_value(data, W83781D_REG_BEEP_INTS3, reg);
+	}
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 0);
+static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 1);
+static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 2);
+static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 3);
+static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 8);
+static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 9);
+static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 10);
+static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 16);
+static SENSOR_DEVICE_ATTR(in8_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 17);
+static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 6);
+static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 7);
+static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 11);
+static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 4);
+static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 5);
+static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 13);
+static SENSOR_DEVICE_ATTR(beep_enable, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 15);
+
+static ssize_t
+show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%ld\n",
+		       (long) DIV_FROM_REG(data->fan_div[nr]));
+}
+/* Note: we save and restore the fan minimum here, because its value is
+   determined in part by the fan divisor.  This follows the principle of
+   least surprise; the user doesn't expect the fan minimum to change just
+   because the divisor changed. */
+static ssize_t
+store_fan_div(struct device *dev, struct device_attribute *devattr,
+	      const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	unsigned long min;
+	u8 reg;
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+
+	/* Save fan_min */
+	min = FAN_FROM_REG(data->fan_min[nr],
+			   DIV_FROM_REG(data->fan_div[nr]));
+
+	data->fan_div[nr] = DIV_TO_REG(val);
+
+	reg = (w83627hf_read_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV)
+	       & (nr==0 ? 0xcf : 0x3f))
+	    | ((data->fan_div[nr] & 0x03) << (nr==0 ? 4 : 6));
+	w83627hf_write_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg);
+
+	reg = (w83627hf_read_value(data, W83781D_REG_VBAT)
+	       & ~(1 << (5 + nr)))
+	    | ((data->fan_div[nr] & 0x04) << (3 + nr));
+	w83627hf_write_value(data, W83781D_REG_VBAT, reg);
+
+	/* Restore fan_min */
+	data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
+	w83627hf_write_value(data, W83627HF_REG_FAN_MIN(nr), data->fan_min[nr]);
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO|S_IWUSR,
+			  show_fan_div, store_fan_div, 0);
+static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO|S_IWUSR,
+			  show_fan_div, store_fan_div, 1);
+static SENSOR_DEVICE_ATTR(fan3_div, S_IRUGO|S_IWUSR,
+			  show_fan_div, store_fan_div, 2);
+
+static ssize_t
+show_pwm(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%ld\n", (long) data->pwm[nr]);
+}
+
+static ssize_t
+store_pwm(struct device *dev, struct device_attribute *devattr,
+	  const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	u32 val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+
+	if (data->type == w83627thf) {
+		/* bits 0-3 are reserved  in 627THF */
+		data->pwm[nr] = PWM_TO_REG(val) & 0xf0;
+		w83627hf_write_value(data,
+				     W836X7HF_REG_PWM(data->type, nr),
+				     data->pwm[nr] |
+				     (w83627hf_read_value(data,
+				     W836X7HF_REG_PWM(data->type, nr)) & 0x0f));
+	} else {
+		data->pwm[nr] = PWM_TO_REG(val);
+		w83627hf_write_value(data,
+				     W836X7HF_REG_PWM(data->type, nr),
+				     data->pwm[nr]);
+	}
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 0);
+static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 1);
+static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 2);
+
+static ssize_t
+show_pwm_enable(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%d\n", data->pwm_enable[nr]);
+}
+
+static ssize_t
+store_pwm_enable(struct device *dev, struct device_attribute *devattr,
+	  const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+	u8 reg;
+
+	if (!val || (val > 3))	/* modes 1, 2 and 3 are supported */
+		return -EINVAL;
+	mutex_lock(&data->update_lock);
+	data->pwm_enable[nr] = val;
+	reg = w83627hf_read_value(data, W83627THF_REG_PWM_ENABLE[nr]);
+	reg &= ~(0x03 << W83627THF_PWM_ENABLE_SHIFT[nr]);
+	reg |= (val - 1) << W83627THF_PWM_ENABLE_SHIFT[nr];
+	w83627hf_write_value(data, W83627THF_REG_PWM_ENABLE[nr], reg);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
+						  store_pwm_enable, 0);
+static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
+						  store_pwm_enable, 1);
+static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
+						  store_pwm_enable, 2);
+
+static ssize_t
+show_pwm_freq(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	if (data->type == w83627hf)
+		return sprintf(buf, "%ld\n",
+			pwm_freq_from_reg_627hf(data->pwm_freq[nr]));
+	else
+		return sprintf(buf, "%ld\n",
+			pwm_freq_from_reg(data->pwm_freq[nr]));
+}
+
+static ssize_t
+store_pwm_freq(struct device *dev, struct device_attribute *devattr,
+	       const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	static const u8 mask[]={0xF8, 0x8F};
+	u32 val;
+
+	val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+
+	if (data->type == w83627hf) {
+		data->pwm_freq[nr] = pwm_freq_to_reg_627hf(val);
+		w83627hf_write_value(data, W83627HF_REG_PWM_FREQ,
+				(data->pwm_freq[nr] << (nr*4)) |
+				(w83627hf_read_value(data,
+				W83627HF_REG_PWM_FREQ) & mask[nr]));
+	} else {
+		data->pwm_freq[nr] = pwm_freq_to_reg(val);
+		w83627hf_write_value(data, W83637HF_REG_PWM_FREQ[nr],
+				data->pwm_freq[nr]);
+	}
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(pwm1_freq, S_IRUGO|S_IWUSR,
+			  show_pwm_freq, store_pwm_freq, 0);
+static SENSOR_DEVICE_ATTR(pwm2_freq, S_IRUGO|S_IWUSR,
+			  show_pwm_freq, store_pwm_freq, 1);
+static SENSOR_DEVICE_ATTR(pwm3_freq, S_IRUGO|S_IWUSR,
+			  show_pwm_freq, store_pwm_freq, 2);
+
+static ssize_t
+show_temp_type(struct device *dev, struct device_attribute *devattr,
+	       char *buf)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = w83627hf_update_device(dev);
+	return sprintf(buf, "%ld\n", (long) data->sens[nr]);
+}
+
+static ssize_t
+store_temp_type(struct device *dev, struct device_attribute *devattr,
+		const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(devattr)->index;
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	u32 val, tmp;
+
+	val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+
+	switch (val) {
+	case 1:		/* PII/Celeron diode */
+		tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
+		w83627hf_write_value(data, W83781D_REG_SCFG1,
+				    tmp | BIT_SCFG1[nr]);
+		tmp = w83627hf_read_value(data, W83781D_REG_SCFG2);
+		w83627hf_write_value(data, W83781D_REG_SCFG2,
+				    tmp | BIT_SCFG2[nr]);
+		data->sens[nr] = val;
+		break;
+	case 2:		/* 3904 */
+		tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
+		w83627hf_write_value(data, W83781D_REG_SCFG1,
+				    tmp | BIT_SCFG1[nr]);
+		tmp = w83627hf_read_value(data, W83781D_REG_SCFG2);
+		w83627hf_write_value(data, W83781D_REG_SCFG2,
+				    tmp & ~BIT_SCFG2[nr]);
+		data->sens[nr] = val;
+		break;
+	case W83781D_DEFAULT_BETA:
+		dev_warn(dev, "Sensor type %d is deprecated, please use 4 "
+			 "instead\n", W83781D_DEFAULT_BETA);
+		/* fall through */
+	case 4:		/* thermistor */
+		tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
+		w83627hf_write_value(data, W83781D_REG_SCFG1,
+				    tmp & ~BIT_SCFG1[nr]);
+		data->sens[nr] = val;
+		break;
+	default:
+		dev_err(dev,
+		       "Invalid sensor type %ld; must be 1, 2, or 4\n",
+		       (long) val);
+		break;
+	}
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define sysfs_temp_type(offset) \
+static SENSOR_DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, \
+			  show_temp_type, store_temp_type, offset - 1);
+
+sysfs_temp_type(1);
+sysfs_temp_type(2);
+sysfs_temp_type(3);
+
+static ssize_t
+show_name(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%s\n", data->name);
+}
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+
+static int __init w83627hf_find(int sioaddr, unsigned short *addr,
+				struct w83627hf_sio_data *sio_data)
+{
+	int err = -ENODEV;
+	u16 val;
+
+	static const __initdata char *names[] = {
+		"W83627HF",
+		"W83627THF",
+		"W83697HF",
+		"W83637HF",
+		"W83687THF",
+	};
+
+	REG = sioaddr;
+	VAL = sioaddr + 1;
+
+	superio_enter();
+	val = force_id ? force_id : superio_inb(DEVID);
+	switch (val) {
+	case W627_DEVID:
+		sio_data->type = w83627hf;
+		break;
+	case W627THF_DEVID:
+		sio_data->type = w83627thf;
+		break;
+	case W697_DEVID:
+		sio_data->type = w83697hf;
+		break;
+	case W637_DEVID:
+		sio_data->type = w83637hf;
+		break;
+	case W687THF_DEVID:
+		sio_data->type = w83687thf;
+		break;
+	case 0xff:	/* No device at all */
+		goto exit;
+	default:
+		pr_debug(DRVNAME ": Unsupported chip (DEVID=0x%02x)\n", val);
+		goto exit;
+	}
+
+	superio_select(W83627HF_LD_HWM);
+	force_addr &= WINB_ALIGNMENT;
+	if (force_addr) {
+		printk(KERN_WARNING DRVNAME ": Forcing address 0x%x\n",
+		       force_addr);
+		superio_outb(WINB_BASE_REG, force_addr >> 8);
+		superio_outb(WINB_BASE_REG + 1, force_addr & 0xff);
+	}
+	val = (superio_inb(WINB_BASE_REG) << 8) |
+	       superio_inb(WINB_BASE_REG + 1);
+	*addr = val & WINB_ALIGNMENT;
+	if (*addr == 0) {
+		printk(KERN_WARNING DRVNAME ": Base address not set, "
+		       "skipping\n");
+		goto exit;
+	}
+
+	val = superio_inb(WINB_ACT_REG);
+	if (!(val & 0x01)) {
+		printk(KERN_WARNING DRVNAME ": Enabling HWM logical device\n");
+		superio_outb(WINB_ACT_REG, val | 0x01);
+	}
+
+	err = 0;
+	pr_info(DRVNAME ": Found %s chip at %#x\n",
+		names[sio_data->type], *addr);
+
+ exit:
+	superio_exit();
+	return err;
+}
+
+#define VIN_UNIT_ATTRS(_X_)	\
+	&sensor_dev_attr_in##_X_##_input.dev_attr.attr,		\
+	&sensor_dev_attr_in##_X_##_min.dev_attr.attr,		\
+	&sensor_dev_attr_in##_X_##_max.dev_attr.attr,		\
+	&sensor_dev_attr_in##_X_##_alarm.dev_attr.attr,		\
+	&sensor_dev_attr_in##_X_##_beep.dev_attr.attr
+
+#define FAN_UNIT_ATTRS(_X_)	\
+	&sensor_dev_attr_fan##_X_##_input.dev_attr.attr,	\
+	&sensor_dev_attr_fan##_X_##_min.dev_attr.attr,		\
+	&sensor_dev_attr_fan##_X_##_div.dev_attr.attr,		\
+	&sensor_dev_attr_fan##_X_##_alarm.dev_attr.attr,	\
+	&sensor_dev_attr_fan##_X_##_beep.dev_attr.attr
+
+#define TEMP_UNIT_ATTRS(_X_)	\
+	&sensor_dev_attr_temp##_X_##_input.dev_attr.attr,	\
+	&sensor_dev_attr_temp##_X_##_max.dev_attr.attr,		\
+	&sensor_dev_attr_temp##_X_##_max_hyst.dev_attr.attr,	\
+	&sensor_dev_attr_temp##_X_##_type.dev_attr.attr,	\
+	&sensor_dev_attr_temp##_X_##_alarm.dev_attr.attr,	\
+	&sensor_dev_attr_temp##_X_##_beep.dev_attr.attr
+
+static struct attribute *w83627hf_attributes[] = {
+	&dev_attr_in0_input.attr,
+	&dev_attr_in0_min.attr,
+	&dev_attr_in0_max.attr,
+	&sensor_dev_attr_in0_alarm.dev_attr.attr,
+	&sensor_dev_attr_in0_beep.dev_attr.attr,
+	VIN_UNIT_ATTRS(2),
+	VIN_UNIT_ATTRS(3),
+	VIN_UNIT_ATTRS(4),
+	VIN_UNIT_ATTRS(7),
+	VIN_UNIT_ATTRS(8),
+
+	FAN_UNIT_ATTRS(1),
+	FAN_UNIT_ATTRS(2),
+
+	TEMP_UNIT_ATTRS(1),
+	TEMP_UNIT_ATTRS(2),
+
+	&dev_attr_alarms.attr,
+	&sensor_dev_attr_beep_enable.dev_attr.attr,
+	&dev_attr_beep_mask.attr,
+
+	&sensor_dev_attr_pwm1.dev_attr.attr,
+	&sensor_dev_attr_pwm2.dev_attr.attr,
+	&dev_attr_name.attr,
+	NULL
+};
+
+static const struct attribute_group w83627hf_group = {
+	.attrs = w83627hf_attributes,
+};
+
+static struct attribute *w83627hf_attributes_opt[] = {
+	VIN_UNIT_ATTRS(1),
+	VIN_UNIT_ATTRS(5),
+	VIN_UNIT_ATTRS(6),
+
+	FAN_UNIT_ATTRS(3),
+	TEMP_UNIT_ATTRS(3),
+	&sensor_dev_attr_pwm3.dev_attr.attr,
+
+	&sensor_dev_attr_pwm1_freq.dev_attr.attr,
+	&sensor_dev_attr_pwm2_freq.dev_attr.attr,
+	&sensor_dev_attr_pwm3_freq.dev_attr.attr,
+
+	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm2_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm3_enable.dev_attr.attr,
+
+	NULL
+};
+
+static const struct attribute_group w83627hf_group_opt = {
+	.attrs = w83627hf_attributes_opt,
+};
+
+static int __devinit w83627hf_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct w83627hf_sio_data *sio_data = dev->platform_data;
+	struct w83627hf_data *data;
+	struct resource *res;
+	int err, i;
+
+	static const char *names[] = {
+		"w83627hf",
+		"w83627thf",
+		"w83697hf",
+		"w83637hf",
+		"w83687thf",
+	};
+
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	if (!request_region(res->start, WINB_REGION_SIZE, DRVNAME)) {
+		dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
+			(unsigned long)res->start,
+			(unsigned long)(res->start + WINB_REGION_SIZE - 1));
+		err = -EBUSY;
+		goto ERROR0;
+	}
+
+	if (!(data = kzalloc(sizeof(struct w83627hf_data), GFP_KERNEL))) {
+		err = -ENOMEM;
+		goto ERROR1;
+	}
+	data->addr = res->start;
+	data->type = sio_data->type;
+	data->name = names[sio_data->type];
+	mutex_init(&data->lock);
+	mutex_init(&data->update_lock);
+	platform_set_drvdata(pdev, data);
+
+	/* Initialize the chip */
+	w83627hf_init_device(pdev);
+
+	/* A few vars need to be filled upon startup */
+	for (i = 0; i <= 2; i++)
+		data->fan_min[i] = w83627hf_read_value(
+					data, W83627HF_REG_FAN_MIN(i));
+	w83627hf_update_fan_div(data);
+
+	/* Register common device attributes */
+	if ((err = sysfs_create_group(&dev->kobj, &w83627hf_group)))
+		goto ERROR3;
+
+	/* Register chip-specific device attributes */
+	if (data->type == w83627hf || data->type == w83697hf)
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_in5_input.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in5_min.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in5_max.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in5_alarm.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in5_beep.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in6_input.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in6_min.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in6_max.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in6_alarm.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in6_beep.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_pwm1_freq.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_pwm2_freq.dev_attr)))
+			goto ERROR4;
+
+	if (data->type != w83697hf)
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_in1_input.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in1_min.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in1_max.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in1_alarm.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_in1_beep.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan3_input.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan3_min.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan3_div.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan3_alarm.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_fan3_beep.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_temp3_input.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_temp3_max.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_temp3_max_hyst.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_temp3_alarm.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_temp3_beep.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_temp3_type.dev_attr)))
+			goto ERROR4;
+
+	if (data->type != w83697hf && data->vid != 0xff) {
+		/* Convert VID to voltage based on VRM */
+		data->vrm = vid_which_vrm();
+
+		if ((err = device_create_file(dev, &dev_attr_cpu0_vid))
+		 || (err = device_create_file(dev, &dev_attr_vrm)))
+			goto ERROR4;
+	}
+
+	if (data->type == w83627thf || data->type == w83637hf
+	 || data->type == w83687thf)
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_pwm3.dev_attr)))
+			goto ERROR4;
+
+	if (data->type == w83637hf || data->type == w83687thf)
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_pwm1_freq.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_pwm2_freq.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_pwm3_freq.dev_attr)))
+			goto ERROR4;
+
+	if (data->type != w83627hf)
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_pwm1_enable.dev_attr))
+		 || (err = device_create_file(dev,
+				&sensor_dev_attr_pwm2_enable.dev_attr)))
+			goto ERROR4;
+
+	if (data->type == w83627thf || data->type == w83637hf
+	 || data->type == w83687thf)
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_pwm3_enable.dev_attr)))
+			goto ERROR4;
+
+	data->hwmon_dev = hwmon_device_register(dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto ERROR4;
+	}
+
+	return 0;
+
+      ERROR4:
+	sysfs_remove_group(&dev->kobj, &w83627hf_group);
+	sysfs_remove_group(&dev->kobj, &w83627hf_group_opt);
+      ERROR3:
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+      ERROR1:
+	release_region(res->start, WINB_REGION_SIZE);
+      ERROR0:
+	return err;
+}
+
+static int __devexit w83627hf_remove(struct platform_device *pdev)
+{
+	struct w83627hf_data *data = platform_get_drvdata(pdev);
+	struct resource *res;
+
+	hwmon_device_unregister(data->hwmon_dev);
+
+	sysfs_remove_group(&pdev->dev.kobj, &w83627hf_group);
+	sysfs_remove_group(&pdev->dev.kobj, &w83627hf_group_opt);
+	platform_set_drvdata(pdev, NULL);
+	kfree(data);
+
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	release_region(res->start, WINB_REGION_SIZE);
+
+	return 0;
+}
+
+
+/* Registers 0x50-0x5f are banked */
+static inline void w83627hf_set_bank(struct w83627hf_data *data, u16 reg)
+{
+	if ((reg & 0x00f0) == 0x50) {
+		outb_p(W83781D_REG_BANK, data->addr + W83781D_ADDR_REG_OFFSET);
+		outb_p(reg >> 8, data->addr + W83781D_DATA_REG_OFFSET);
+	}
+}
+
+/* Not strictly necessary, but play it safe for now */
+static inline void w83627hf_reset_bank(struct w83627hf_data *data, u16 reg)
+{
+	if (reg & 0xff00) {
+		outb_p(W83781D_REG_BANK, data->addr + W83781D_ADDR_REG_OFFSET);
+		outb_p(0, data->addr + W83781D_DATA_REG_OFFSET);
+	}
+}
+
+static int w83627hf_read_value(struct w83627hf_data *data, u16 reg)
+{
+	int res, word_sized;
+
+	mutex_lock(&data->lock);
+	word_sized = (((reg & 0xff00) == 0x100)
+		   || ((reg & 0xff00) == 0x200))
+		  && (((reg & 0x00ff) == 0x50)
+		   || ((reg & 0x00ff) == 0x53)
+		   || ((reg & 0x00ff) == 0x55));
+	w83627hf_set_bank(data, reg);
+	outb_p(reg & 0xff, data->addr + W83781D_ADDR_REG_OFFSET);
+	res = inb_p(data->addr + W83781D_DATA_REG_OFFSET);
+	if (word_sized) {
+		outb_p((reg & 0xff) + 1,
+		       data->addr + W83781D_ADDR_REG_OFFSET);
+		res =
+		    (res << 8) + inb_p(data->addr +
+				       W83781D_DATA_REG_OFFSET);
+	}
+	w83627hf_reset_bank(data, reg);
+	mutex_unlock(&data->lock);
+	return res;
+}
+
+static int __devinit w83627thf_read_gpio5(struct platform_device *pdev)
+{
+	int res = 0xff, sel;
+
+	superio_enter();
+	superio_select(W83627HF_LD_GPIO5);
+
+	/* Make sure these GPIO pins are enabled */
+	if (!(superio_inb(W83627THF_GPIO5_EN) & (1<<3))) {
+		dev_dbg(&pdev->dev, "GPIO5 disabled, no VID function\n");
+		goto exit;
+	}
+
+	/* Make sure the pins are configured for input
+	   There must be at least five (VRM 9), and possibly 6 (VRM 10) */
+	sel = superio_inb(W83627THF_GPIO5_IOSR) & 0x3f;
+	if ((sel & 0x1f) != 0x1f) {
+		dev_dbg(&pdev->dev, "GPIO5 not configured for VID "
+			"function\n");
+		goto exit;
+	}
+
+	dev_info(&pdev->dev, "Reading VID from GPIO5\n");
+	res = superio_inb(W83627THF_GPIO5_DR) & sel;
+
+exit:
+	superio_exit();
+	return res;
+}
+
+static int __devinit w83687thf_read_vid(struct platform_device *pdev)
+{
+	int res = 0xff;
+
+	superio_enter();
+	superio_select(W83627HF_LD_HWM);
+
+	/* Make sure these GPIO pins are enabled */
+	if (!(superio_inb(W83687THF_VID_EN) & (1 << 2))) {
+		dev_dbg(&pdev->dev, "VID disabled, no VID function\n");
+		goto exit;
+	}
+
+	/* Make sure the pins are configured for input */
+	if (!(superio_inb(W83687THF_VID_CFG) & (1 << 4))) {
+		dev_dbg(&pdev->dev, "VID configured as output, "
+			"no VID function\n");
+		goto exit;
+	}
+
+	res = superio_inb(W83687THF_VID_DATA) & 0x3f;
+
+exit:
+	superio_exit();
+	return res;
+}
+
+static int w83627hf_write_value(struct w83627hf_data *data, u16 reg, u16 value)
+{
+	int word_sized;
+
+	mutex_lock(&data->lock);
+	word_sized = (((reg & 0xff00) == 0x100)
+		   || ((reg & 0xff00) == 0x200))
+		  && (((reg & 0x00ff) == 0x53)
+		   || ((reg & 0x00ff) == 0x55));
+	w83627hf_set_bank(data, reg);
+	outb_p(reg & 0xff, data->addr + W83781D_ADDR_REG_OFFSET);
+	if (word_sized) {
+		outb_p(value >> 8,
+		       data->addr + W83781D_DATA_REG_OFFSET);
+		outb_p((reg & 0xff) + 1,
+		       data->addr + W83781D_ADDR_REG_OFFSET);
+	}
+	outb_p(value & 0xff,
+	       data->addr + W83781D_DATA_REG_OFFSET);
+	w83627hf_reset_bank(data, reg);
+	mutex_unlock(&data->lock);
+	return 0;
+}
+
+static void __devinit w83627hf_init_device(struct platform_device *pdev)
+{
+	struct w83627hf_data *data = platform_get_drvdata(pdev);
+	int i;
+	enum chips type = data->type;
+	u8 tmp;
+
+	/* Minimize conflicts with other winbond i2c-only clients...  */
+	/* disable i2c subclients... how to disable main i2c client?? */
+	/* force i2c address to relatively uncommon address */
+	w83627hf_write_value(data, W83781D_REG_I2C_SUBADDR, 0x89);
+	w83627hf_write_value(data, W83781D_REG_I2C_ADDR, force_i2c);
+
+	/* Read VID only once */
+	if (type == w83627hf || type == w83637hf) {
+		int lo = w83627hf_read_value(data, W83781D_REG_VID_FANDIV);
+		int hi = w83627hf_read_value(data, W83781D_REG_CHIPID);
+		data->vid = (lo & 0x0f) | ((hi & 0x01) << 4);
+	} else if (type == w83627thf) {
+		data->vid = w83627thf_read_gpio5(pdev);
+	} else if (type == w83687thf) {
+		data->vid = w83687thf_read_vid(pdev);
+	}
+
+	/* Read VRM & OVT Config only once */
+	if (type == w83627thf || type == w83637hf || type == w83687thf) {
+		data->vrm_ovt = 
+			w83627hf_read_value(data, W83627THF_REG_VRM_OVT_CFG);
+	}
+
+	tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
+	for (i = 1; i <= 3; i++) {
+		if (!(tmp & BIT_SCFG1[i - 1])) {
+			data->sens[i - 1] = 4;
+		} else {
+			if (w83627hf_read_value
+			    (data,
+			     W83781D_REG_SCFG2) & BIT_SCFG2[i - 1])
+				data->sens[i - 1] = 1;
+			else
+				data->sens[i - 1] = 2;
+		}
+		if ((type == w83697hf) && (i == 2))
+			break;
+	}
+
+	if(init) {
+		/* Enable temp2 */
+		tmp = w83627hf_read_value(data, W83627HF_REG_TEMP2_CONFIG);
+		if (tmp & 0x01) {
+			dev_warn(&pdev->dev, "Enabling temp2, readings "
+				 "might not make sense\n");
+			w83627hf_write_value(data, W83627HF_REG_TEMP2_CONFIG,
+				tmp & 0xfe);
+		}
+
+		/* Enable temp3 */
+		if (type != w83697hf) {
+			tmp = w83627hf_read_value(data,
+				W83627HF_REG_TEMP3_CONFIG);
+			if (tmp & 0x01) {
+				dev_warn(&pdev->dev, "Enabling temp3, "
+					 "readings might not make sense\n");
+				w83627hf_write_value(data,
+					W83627HF_REG_TEMP3_CONFIG, tmp & 0xfe);
+			}
+		}
+	}
+
+	/* Start monitoring */
+	w83627hf_write_value(data, W83781D_REG_CONFIG,
+			    (w83627hf_read_value(data,
+						W83781D_REG_CONFIG) & 0xf7)
+			    | 0x01);
+
+	/* Enable VBAT monitoring if needed */
+	tmp = w83627hf_read_value(data, W83781D_REG_VBAT);
+	if (!(tmp & 0x01))
+		w83627hf_write_value(data, W83781D_REG_VBAT, tmp | 0x01);
+}
+
+static void w83627hf_update_fan_div(struct w83627hf_data *data)
+{
+	int reg;
+
+	reg = w83627hf_read_value(data, W83781D_REG_VID_FANDIV);
+	data->fan_div[0] = (reg >> 4) & 0x03;
+	data->fan_div[1] = (reg >> 6) & 0x03;
+	if (data->type != w83697hf) {
+		data->fan_div[2] = (w83627hf_read_value(data,
+				       W83781D_REG_PIN) >> 6) & 0x03;
+	}
+	reg = w83627hf_read_value(data, W83781D_REG_VBAT);
+	data->fan_div[0] |= (reg >> 3) & 0x04;
+	data->fan_div[1] |= (reg >> 4) & 0x04;
+	if (data->type != w83697hf)
+		data->fan_div[2] |= (reg >> 5) & 0x04;
+}
+
+static struct w83627hf_data *w83627hf_update_device(struct device *dev)
+{
+	struct w83627hf_data *data = dev_get_drvdata(dev);
+	int i, num_temps = (data->type == w83697hf) ? 2 : 3;
+	int num_pwms = (data->type == w83697hf) ? 2 : 3;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	    || !data->valid) {
+		for (i = 0; i <= 8; i++) {
+			/* skip missing sensors */
+			if (((data->type == w83697hf) && (i == 1)) ||
+			    ((data->type != w83627hf && data->type != w83697hf)
+			    && (i == 5 || i == 6)))
+				continue;
+			data->in[i] =
+			    w83627hf_read_value(data, W83781D_REG_IN(i));
+			data->in_min[i] =
+			    w83627hf_read_value(data,
+					       W83781D_REG_IN_MIN(i));
+			data->in_max[i] =
+			    w83627hf_read_value(data,
+					       W83781D_REG_IN_MAX(i));
+		}
+		for (i = 0; i <= 2; i++) {
+			data->fan[i] =
+			    w83627hf_read_value(data, W83627HF_REG_FAN(i));
+			data->fan_min[i] =
+			    w83627hf_read_value(data,
+					       W83627HF_REG_FAN_MIN(i));
+		}
+		for (i = 0; i <= 2; i++) {
+			u8 tmp = w83627hf_read_value(data,
+				W836X7HF_REG_PWM(data->type, i));
+ 			/* bits 0-3 are reserved  in 627THF */
+ 			if (data->type == w83627thf)
+				tmp &= 0xf0;
+			data->pwm[i] = tmp;
+			if (i == 1 &&
+			    (data->type == w83627hf || data->type == w83697hf))
+				break;
+		}
+		if (data->type == w83627hf) {
+				u8 tmp = w83627hf_read_value(data,
+						W83627HF_REG_PWM_FREQ);
+				data->pwm_freq[0] = tmp & 0x07;
+				data->pwm_freq[1] = (tmp >> 4) & 0x07;
+		} else if (data->type != w83627thf) {
+			for (i = 1; i <= 3; i++) {
+				data->pwm_freq[i - 1] =
+					w83627hf_read_value(data,
+						W83637HF_REG_PWM_FREQ[i - 1]);
+				if (i == 2 && (data->type == w83697hf))
+					break;
+			}
+		}
+		if (data->type != w83627hf) {
+			for (i = 0; i < num_pwms; i++) {
+				u8 tmp = w83627hf_read_value(data,
+					W83627THF_REG_PWM_ENABLE[i]);
+				data->pwm_enable[i] =
+					((tmp >> W83627THF_PWM_ENABLE_SHIFT[i])
+					& 0x03) + 1;
+			}
+		}
+		for (i = 0; i < num_temps; i++) {
+			data->temp[i] = w83627hf_read_value(
+						data, w83627hf_reg_temp[i]);
+			data->temp_max[i] = w83627hf_read_value(
+						data, w83627hf_reg_temp_over[i]);
+			data->temp_max_hyst[i] = w83627hf_read_value(
+						data, w83627hf_reg_temp_hyst[i]);
+		}
+
+		w83627hf_update_fan_div(data);
+
+		data->alarms =
+		    w83627hf_read_value(data, W83781D_REG_ALARM1) |
+		    (w83627hf_read_value(data, W83781D_REG_ALARM2) << 8) |
+		    (w83627hf_read_value(data, W83781D_REG_ALARM3) << 16);
+		i = w83627hf_read_value(data, W83781D_REG_BEEP_INTS2);
+		data->beep_mask = (i << 8) |
+		    w83627hf_read_value(data, W83781D_REG_BEEP_INTS1) |
+		    w83627hf_read_value(data, W83781D_REG_BEEP_INTS3) << 16;
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init w83627hf_device_add(unsigned short address,
+				      const struct w83627hf_sio_data *sio_data)
+{
+	struct resource res = {
+		.start	= address + WINB_REGION_OFFSET,
+		.end	= address + WINB_REGION_OFFSET + WINB_REGION_SIZE - 1,
+		.name	= DRVNAME,
+		.flags	= IORESOURCE_IO,
+	};
+	int err;
+
+	pdev = platform_device_alloc(DRVNAME, address);
+	if (!pdev) {
+		err = -ENOMEM;
+		printk(KERN_ERR DRVNAME ": Device allocation failed\n");
+		goto exit;
+	}
+
+	err = platform_device_add_resources(pdev, &res, 1);
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Device resource addition failed "
+		       "(%d)\n", err);
+		goto exit_device_put;
+	}
+
+	err = platform_device_add_data(pdev, sio_data,
+				       sizeof(struct w83627hf_sio_data));
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Platform data allocation failed\n");
+		goto exit_device_put;
+	}
+
+	err = platform_device_add(pdev);
+	if (err) {
+		printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",
+		       err);
+		goto exit_device_put;
+	}
+
+	return 0;
+
+exit_device_put:
+	platform_device_put(pdev);
+exit:
+	return err;
+}
+
+static int __init sensors_w83627hf_init(void)
+{
+	int err;
+	unsigned short address;
+	struct w83627hf_sio_data sio_data;
+
+	if (w83627hf_find(0x2e, &address, &sio_data)
+	 && w83627hf_find(0x4e, &address, &sio_data))
+		return -ENODEV;
+
+	err = platform_driver_register(&w83627hf_driver);
+	if (err)
+		goto exit;
+
+	/* Sets global pdev as a side effect */
+	err = w83627hf_device_add(address, &sio_data);
+	if (err)
+		goto exit_driver;
+
+	return 0;
+
+exit_driver:
+	platform_driver_unregister(&w83627hf_driver);
+exit:
+	return err;
+}
+
+static void __exit sensors_w83627hf_exit(void)
+{
+	platform_device_unregister(pdev);
+	platform_driver_unregister(&w83627hf_driver);
+}
+
+MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
+	      "Philip Edelbrock <phil@netroedge.com>, "
+	      "and Mark Studebaker <mdsxyz123@yahoo.com>");
+MODULE_DESCRIPTION("W83627HF driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_w83627hf_init);
+module_exit(sensors_w83627hf_exit);
diff --git a/drivers/hwmon/w83781d.c b/drivers/hwmon/w83781d.c
new file mode 100644
index 0000000..fc12bd4
--- /dev/null
+++ b/drivers/hwmon/w83781d.c
@@ -0,0 +1,2063 @@
+/*
+    w83781d.c - Part of lm_sensors, Linux kernel modules for hardware
+                monitoring
+    Copyright (c) 1998 - 2001  Frodo Looijaard <frodol@dds.nl>,
+                               Philip Edelbrock <phil@netroedge.com>,
+                               and Mark Studebaker <mdsxyz123@yahoo.com>
+    Copyright (c) 2007 - 2008  Jean Delvare <khali@linux-fr.org>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+    Supports following chips:
+
+    Chip	#vin	#fanin	#pwm	#temp	wchipid	vendid	i2c	ISA
+    as99127f	7	3	0	3	0x31	0x12c3	yes	no
+    as99127f rev.2 (type_name = as99127f)	0x31	0x5ca3	yes	no
+    w83781d	7	3	0	3	0x10-1	0x5ca3	yes	yes
+    w83782d	9	3	2-4	3	0x30	0x5ca3	yes	yes
+    w83783s	5-6	3	2	1-2	0x40	0x5ca3	yes	no
+
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-vid.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+#ifdef CONFIG_ISA
+#include <linux/platform_device.h>
+#include <linux/ioport.h>
+#include <asm/io.h>
+#endif
+
+#include "lm75.h"
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d,
+						0x2e, 0x2f, I2C_CLIENT_END };
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_4(w83781d, w83782d, w83783s, as99127f);
+I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: "
+		    "{bus, clientaddr, subclientaddr1, subclientaddr2}");
+
+static int reset;
+module_param(reset, bool, 0);
+MODULE_PARM_DESC(reset, "Set to one to reset chip on load");
+
+static int init = 1;
+module_param(init, bool, 0);
+MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization");
+
+/* Constants specified below */
+
+/* Length of ISA address segment */
+#define W83781D_EXTENT			8
+
+/* Where are the ISA address/data registers relative to the base address */
+#define W83781D_ADDR_REG_OFFSET		5
+#define W83781D_DATA_REG_OFFSET		6
+
+/* The device registers */
+/* in nr from 0 to 8 */
+#define W83781D_REG_IN_MAX(nr)		((nr < 7) ? (0x2b + (nr) * 2) : \
+						    (0x554 + (((nr) - 7) * 2)))
+#define W83781D_REG_IN_MIN(nr)		((nr < 7) ? (0x2c + (nr) * 2) : \
+						    (0x555 + (((nr) - 7) * 2)))
+#define W83781D_REG_IN(nr)		((nr < 7) ? (0x20 + (nr)) : \
+						    (0x550 + (nr) - 7))
+
+/* fan nr from 0 to 2 */
+#define W83781D_REG_FAN_MIN(nr)		(0x3b + (nr))
+#define W83781D_REG_FAN(nr)		(0x28 + (nr))
+
+#define W83781D_REG_BANK		0x4E
+#define W83781D_REG_TEMP2_CONFIG	0x152
+#define W83781D_REG_TEMP3_CONFIG	0x252
+/* temp nr from 1 to 3 */
+#define W83781D_REG_TEMP(nr)		((nr == 3) ? (0x0250) : \
+					((nr == 2) ? (0x0150) : \
+						     (0x27)))
+#define W83781D_REG_TEMP_HYST(nr)	((nr == 3) ? (0x253) : \
+					((nr == 2) ? (0x153) : \
+						     (0x3A)))
+#define W83781D_REG_TEMP_OVER(nr)	((nr == 3) ? (0x255) : \
+					((nr == 2) ? (0x155) : \
+						     (0x39)))
+
+#define W83781D_REG_CONFIG		0x40
+
+/* Interrupt status (W83781D, AS99127F) */
+#define W83781D_REG_ALARM1		0x41
+#define W83781D_REG_ALARM2		0x42
+
+/* Real-time status (W83782D, W83783S) */
+#define W83782D_REG_ALARM1		0x459
+#define W83782D_REG_ALARM2		0x45A
+#define W83782D_REG_ALARM3		0x45B
+
+#define W83781D_REG_BEEP_CONFIG		0x4D
+#define W83781D_REG_BEEP_INTS1		0x56
+#define W83781D_REG_BEEP_INTS2		0x57
+#define W83781D_REG_BEEP_INTS3		0x453	/* not on W83781D */
+
+#define W83781D_REG_VID_FANDIV		0x47
+
+#define W83781D_REG_CHIPID		0x49
+#define W83781D_REG_WCHIPID		0x58
+#define W83781D_REG_CHIPMAN		0x4F
+#define W83781D_REG_PIN			0x4B
+
+/* 782D/783S only */
+#define W83781D_REG_VBAT		0x5D
+
+/* PWM 782D (1-4) and 783S (1-2) only */
+static const u8 W83781D_REG_PWM[] = { 0x5B, 0x5A, 0x5E, 0x5F };
+#define W83781D_REG_PWMCLK12		0x5C
+#define W83781D_REG_PWMCLK34		0x45C
+
+#define W83781D_REG_I2C_ADDR		0x48
+#define W83781D_REG_I2C_SUBADDR		0x4A
+
+/* The following are undocumented in the data sheets however we
+   received the information in an email from Winbond tech support */
+/* Sensor selection - not on 781d */
+#define W83781D_REG_SCFG1		0x5D
+static const u8 BIT_SCFG1[] = { 0x02, 0x04, 0x08 };
+
+#define W83781D_REG_SCFG2		0x59
+static const u8 BIT_SCFG2[] = { 0x10, 0x20, 0x40 };
+
+#define W83781D_DEFAULT_BETA		3435
+
+/* Conversions */
+#define IN_TO_REG(val)			SENSORS_LIMIT(((val) + 8) / 16, 0, 255)
+#define IN_FROM_REG(val)		((val) * 16)
+
+static inline u8
+FAN_TO_REG(long rpm, int div)
+{
+	if (rpm == 0)
+		return 255;
+	rpm = SENSORS_LIMIT(rpm, 1, 1000000);
+	return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
+}
+
+static inline long
+FAN_FROM_REG(u8 val, int div)
+{
+	if (val == 0)
+		return -1;
+	if (val == 255)
+		return 0;
+	return 1350000 / (val * div);
+}
+
+#define TEMP_TO_REG(val)		SENSORS_LIMIT((val) / 1000, -127, 128)
+#define TEMP_FROM_REG(val)		((val) * 1000)
+
+#define BEEP_MASK_FROM_REG(val,type)	((type) == as99127f ? \
+					 (~(val)) & 0x7fff : (val) & 0xff7fff)
+#define BEEP_MASK_TO_REG(val,type)	((type) == as99127f ? \
+					 (~(val)) & 0x7fff : (val) & 0xff7fff)
+
+#define DIV_FROM_REG(val)		(1 << (val))
+
+static inline u8
+DIV_TO_REG(long val, enum chips type)
+{
+	int i;
+	val = SENSORS_LIMIT(val, 1,
+			    ((type == w83781d
+			      || type == as99127f) ? 8 : 128)) >> 1;
+	for (i = 0; i < 7; i++) {
+		if (val == 0)
+			break;
+		val >>= 1;
+	}
+	return i;
+}
+
+struct w83781d_data {
+	struct i2c_client *client;
+	struct device *hwmon_dev;
+	struct mutex lock;
+	enum chips type;
+
+	/* For ISA device only */
+	const char *name;
+	int isa_addr;
+
+	struct mutex update_lock;
+	char valid;		/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+
+	struct i2c_client *lm75[2];	/* for secondary I2C addresses */
+	/* array of 2 pointers to subclients */
+
+	u8 in[9];		/* Register value - 8 & 9 for 782D only */
+	u8 in_max[9];		/* Register value - 8 & 9 for 782D only */
+	u8 in_min[9];		/* Register value - 8 & 9 for 782D only */
+	u8 fan[3];		/* Register value */
+	u8 fan_min[3];		/* Register value */
+	s8 temp;		/* Register value */
+	s8 temp_max;		/* Register value */
+	s8 temp_max_hyst;	/* Register value */
+	u16 temp_add[2];	/* Register value */
+	u16 temp_max_add[2];	/* Register value */
+	u16 temp_max_hyst_add[2];	/* Register value */
+	u8 fan_div[3];		/* Register encoding, shifted right */
+	u8 vid;			/* Register encoding, combined */
+	u32 alarms;		/* Register encoding, combined */
+	u32 beep_mask;		/* Register encoding, combined */
+	u8 pwm[4];		/* Register value */
+	u8 pwm2_enable;		/* Boolean */
+	u16 sens[3];		/* 782D/783S only.
+				   1 = pentium diode; 2 = 3904 diode;
+				   4 = thermistor */
+	u8 vrm;
+};
+
+static struct w83781d_data *w83781d_data_if_isa(void);
+static int w83781d_alias_detect(struct i2c_client *client, u8 chipid);
+
+static int w83781d_read_value(struct w83781d_data *data, u16 reg);
+static int w83781d_write_value(struct w83781d_data *data, u16 reg, u16 value);
+static struct w83781d_data *w83781d_update_device(struct device *dev);
+static void w83781d_init_device(struct device *dev);
+
+/* following are the sysfs callback functions */
+#define show_in_reg(reg) \
+static ssize_t show_##reg (struct device *dev, struct device_attribute *da, \
+		char *buf) \
+{ \
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
+	struct w83781d_data *data = w83781d_update_device(dev); \
+	return sprintf(buf, "%ld\n", \
+		       (long)IN_FROM_REG(data->reg[attr->index])); \
+}
+show_in_reg(in);
+show_in_reg(in_min);
+show_in_reg(in_max);
+
+#define store_in_reg(REG, reg) \
+static ssize_t store_in_##reg (struct device *dev, struct device_attribute \
+		*da, const char *buf, size_t count) \
+{ \
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
+	struct w83781d_data *data = dev_get_drvdata(dev); \
+	int nr = attr->index; \
+	u32 val; \
+	 \
+	val = simple_strtoul(buf, NULL, 10); \
+	 \
+	mutex_lock(&data->update_lock); \
+	data->in_##reg[nr] = IN_TO_REG(val); \
+	w83781d_write_value(data, W83781D_REG_IN_##REG(nr), data->in_##reg[nr]); \
+	 \
+	mutex_unlock(&data->update_lock); \
+	return count; \
+}
+store_in_reg(MIN, min);
+store_in_reg(MAX, max);
+
+#define sysfs_in_offsets(offset) \
+static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
+		show_in, NULL, offset); \
+static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
+		show_in_min, store_in_min, offset); \
+static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
+		show_in_max, store_in_max, offset)
+
+sysfs_in_offsets(0);
+sysfs_in_offsets(1);
+sysfs_in_offsets(2);
+sysfs_in_offsets(3);
+sysfs_in_offsets(4);
+sysfs_in_offsets(5);
+sysfs_in_offsets(6);
+sysfs_in_offsets(7);
+sysfs_in_offsets(8);
+
+#define show_fan_reg(reg) \
+static ssize_t show_##reg (struct device *dev, struct device_attribute *da, \
+		char *buf) \
+{ \
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
+	struct w83781d_data *data = w83781d_update_device(dev); \
+	return sprintf(buf,"%ld\n", \
+		FAN_FROM_REG(data->reg[attr->index], \
+			DIV_FROM_REG(data->fan_div[attr->index]))); \
+}
+show_fan_reg(fan);
+show_fan_reg(fan_min);
+
+static ssize_t
+store_fan_min(struct device *dev, struct device_attribute *da,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct w83781d_data *data = dev_get_drvdata(dev);
+	int nr = attr->index;
+	u32 val;
+
+	val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->fan_min[nr] =
+	    FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
+	w83781d_write_value(data, W83781D_REG_FAN_MIN(nr),
+			    data->fan_min[nr]);
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO | S_IWUSR,
+		show_fan_min, store_fan_min, 0);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO | S_IWUSR,
+		show_fan_min, store_fan_min, 1);
+static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan3_min, S_IRUGO | S_IWUSR,
+		show_fan_min, store_fan_min, 2);
+
+#define show_temp_reg(reg) \
+static ssize_t show_##reg (struct device *dev, struct device_attribute *da, \
+		char *buf) \
+{ \
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
+	struct w83781d_data *data = w83781d_update_device(dev); \
+	int nr = attr->index; \
+	if (nr >= 2) {	/* TEMP2 and TEMP3 */ \
+		return sprintf(buf,"%d\n", \
+			LM75_TEMP_FROM_REG(data->reg##_add[nr-2])); \
+	} else {	/* TEMP1 */ \
+		return sprintf(buf,"%ld\n", (long)TEMP_FROM_REG(data->reg)); \
+	} \
+}
+show_temp_reg(temp);
+show_temp_reg(temp_max);
+show_temp_reg(temp_max_hyst);
+
+#define store_temp_reg(REG, reg) \
+static ssize_t store_temp_##reg (struct device *dev, \
+		struct device_attribute *da, const char *buf, size_t count) \
+{ \
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
+	struct w83781d_data *data = dev_get_drvdata(dev); \
+	int nr = attr->index; \
+	long val; \
+	 \
+	val = simple_strtol(buf, NULL, 10); \
+	 \
+	mutex_lock(&data->update_lock); \
+	 \
+	if (nr >= 2) {	/* TEMP2 and TEMP3 */ \
+		data->temp_##reg##_add[nr-2] = LM75_TEMP_TO_REG(val); \
+		w83781d_write_value(data, W83781D_REG_TEMP_##REG(nr), \
+				data->temp_##reg##_add[nr-2]); \
+	} else {	/* TEMP1 */ \
+		data->temp_##reg = TEMP_TO_REG(val); \
+		w83781d_write_value(data, W83781D_REG_TEMP_##REG(nr), \
+			data->temp_##reg); \
+	} \
+	 \
+	mutex_unlock(&data->update_lock); \
+	return count; \
+}
+store_temp_reg(OVER, max);
+store_temp_reg(HYST, max_hyst);
+
+#define sysfs_temp_offsets(offset) \
+static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
+		show_temp, NULL, offset); \
+static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
+		show_temp_max, store_temp_max, offset); \
+static SENSOR_DEVICE_ATTR(temp##offset##_max_hyst, S_IRUGO | S_IWUSR, \
+		show_temp_max_hyst, store_temp_max_hyst, offset);
+
+sysfs_temp_offsets(1);
+sysfs_temp_offsets(2);
+sysfs_temp_offsets(3);
+
+static ssize_t
+show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83781d_data *data = w83781d_update_device(dev);
+	return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
+}
+
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
+
+static ssize_t
+show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83781d_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%ld\n", (long) data->vrm);
+}
+
+static ssize_t
+store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct w83781d_data *data = dev_get_drvdata(dev);
+	u32 val;
+
+	val = simple_strtoul(buf, NULL, 10);
+	data->vrm = val;
+
+	return count;
+}
+
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
+
+static ssize_t
+show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83781d_data *data = w83781d_update_device(dev);
+	return sprintf(buf, "%u\n", data->alarms);
+}
+
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct w83781d_data *data = w83781d_update_device(dev);
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
+}
+
+/* The W83781D has a single alarm bit for temp2 and temp3 */
+static ssize_t show_temp3_alarm(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct w83781d_data *data = w83781d_update_device(dev);
+	int bitnr = (data->type == w83781d) ? 5 : 13;
+	return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
+}
+
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 9);
+static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 10);
+static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 16);
+static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 17);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7);
+static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_temp3_alarm, NULL, 0);
+
+static ssize_t show_beep_mask (struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83781d_data *data = w83781d_update_device(dev);
+	return sprintf(buf, "%ld\n",
+		       (long)BEEP_MASK_FROM_REG(data->beep_mask, data->type));
+}
+
+static ssize_t
+store_beep_mask(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct w83781d_data *data = dev_get_drvdata(dev);
+	u32 val;
+
+	val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->beep_mask &= 0x8000; /* preserve beep enable */
+	data->beep_mask |= BEEP_MASK_TO_REG(val, data->type);
+	w83781d_write_value(data, W83781D_REG_BEEP_INTS1,
+			    data->beep_mask & 0xff);
+	w83781d_write_value(data, W83781D_REG_BEEP_INTS2,
+			    (data->beep_mask >> 8) & 0xff);
+	if (data->type != w83781d && data->type != as99127f) {
+		w83781d_write_value(data, W83781D_REG_BEEP_INTS3,
+				    ((data->beep_mask) >> 16) & 0xff);
+	}
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static DEVICE_ATTR(beep_mask, S_IRUGO | S_IWUSR,
+		show_beep_mask, store_beep_mask);
+
+static ssize_t show_beep(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct w83781d_data *data = w83781d_update_device(dev);
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	return sprintf(buf, "%u\n", (data->beep_mask >> bitnr) & 1);
+}
+
+static ssize_t
+store_beep(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct w83781d_data *data = dev_get_drvdata(dev);
+	int bitnr = to_sensor_dev_attr(attr)->index;
+	unsigned long bit;
+	u8 reg;
+
+	bit = simple_strtoul(buf, NULL, 10);
+	if (bit & ~1)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	if (bit)
+		data->beep_mask |= (1 << bitnr);
+	else
+		data->beep_mask &= ~(1 << bitnr);
+
+	if (bitnr < 8) {
+		reg = w83781d_read_value(data, W83781D_REG_BEEP_INTS1);
+		if (bit)
+			reg |= (1 << bitnr);
+		else
+			reg &= ~(1 << bitnr);
+		w83781d_write_value(data, W83781D_REG_BEEP_INTS1, reg);
+	} else if (bitnr < 16) {
+		reg = w83781d_read_value(data, W83781D_REG_BEEP_INTS2);
+		if (bit)
+			reg |= (1 << (bitnr - 8));
+		else
+			reg &= ~(1 << (bitnr - 8));
+		w83781d_write_value(data, W83781D_REG_BEEP_INTS2, reg);
+	} else {
+		reg = w83781d_read_value(data, W83781D_REG_BEEP_INTS3);
+		if (bit)
+			reg |= (1 << (bitnr - 16));
+		else
+			reg &= ~(1 << (bitnr - 16));
+		w83781d_write_value(data, W83781D_REG_BEEP_INTS3, reg);
+	}
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/* The W83781D has a single beep bit for temp2 and temp3 */
+static ssize_t show_temp3_beep(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct w83781d_data *data = w83781d_update_device(dev);
+	int bitnr = (data->type == w83781d) ? 5 : 13;
+	return sprintf(buf, "%u\n", (data->beep_mask >> bitnr) & 1);
+}
+
+static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 0);
+static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 1);
+static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 2);
+static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 3);
+static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 8);
+static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 9);
+static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 10);
+static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 16);
+static SENSOR_DEVICE_ATTR(in8_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 17);
+static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 6);
+static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 7);
+static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 11);
+static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 4);
+static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 5);
+static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO,
+			show_temp3_beep, store_beep, 13);
+static SENSOR_DEVICE_ATTR(beep_enable, S_IRUGO | S_IWUSR,
+			show_beep, store_beep, 15);
+
+static ssize_t
+show_fan_div(struct device *dev, struct device_attribute *da, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct w83781d_data *data = w83781d_update_device(dev);
+	return sprintf(buf, "%ld\n",
+		       (long) DIV_FROM_REG(data->fan_div[attr->index]));
+}
+
+/* Note: we save and restore the fan minimum here, because its value is
+   determined in part by the fan divisor.  This follows the principle of
+   least surprise; the user doesn't expect the fan minimum to change just
+   because the divisor changed. */
+static ssize_t
+store_fan_div(struct device *dev, struct device_attribute *da,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct w83781d_data *data = dev_get_drvdata(dev);
+	unsigned long min;
+	int nr = attr->index;
+	u8 reg;
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+
+	/* Save fan_min */
+	min = FAN_FROM_REG(data->fan_min[nr],
+			   DIV_FROM_REG(data->fan_div[nr]));
+
+	data->fan_div[nr] = DIV_TO_REG(val, data->type);
+
+	reg = (w83781d_read_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV)
+	       & (nr==0 ? 0xcf : 0x3f))
+	    | ((data->fan_div[nr] & 0x03) << (nr==0 ? 4 : 6));
+	w83781d_write_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg);
+
+	/* w83781d and as99127f don't have extended divisor bits */
+	if (data->type != w83781d && data->type != as99127f) {
+		reg = (w83781d_read_value(data, W83781D_REG_VBAT)
+		       & ~(1 << (5 + nr)))
+		    | ((data->fan_div[nr] & 0x04) << (3 + nr));
+		w83781d_write_value(data, W83781D_REG_VBAT, reg);
+	}
+
+	/* Restore fan_min */
+	data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
+	w83781d_write_value(data, W83781D_REG_FAN_MIN(nr), data->fan_min[nr]);
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR,
+		show_fan_div, store_fan_div, 0);
+static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR,
+		show_fan_div, store_fan_div, 1);
+static SENSOR_DEVICE_ATTR(fan3_div, S_IRUGO | S_IWUSR,
+		show_fan_div, store_fan_div, 2);
+
+static ssize_t
+show_pwm(struct device *dev, struct device_attribute *da, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct w83781d_data *data = w83781d_update_device(dev);
+	return sprintf(buf, "%d\n", (int)data->pwm[attr->index]);
+}
+
+static ssize_t
+show_pwm2_enable(struct device *dev, struct device_attribute *da, char *buf)
+{
+	struct w83781d_data *data = w83781d_update_device(dev);
+	return sprintf(buf, "%d\n", (int)data->pwm2_enable);
+}
+
+static ssize_t
+store_pwm(struct device *dev, struct device_attribute *da, const char *buf,
+		size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct w83781d_data *data = dev_get_drvdata(dev);
+	int nr = attr->index;
+	u32 val;
+
+	val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->pwm[nr] = SENSORS_LIMIT(val, 0, 255);
+	w83781d_write_value(data, W83781D_REG_PWM[nr], data->pwm[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t
+store_pwm2_enable(struct device *dev, struct device_attribute *da,
+		const char *buf, size_t count)
+{
+	struct w83781d_data *data = dev_get_drvdata(dev);
+	u32 val, reg;
+
+	val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+
+	switch (val) {
+	case 0:
+	case 1:
+		reg = w83781d_read_value(data, W83781D_REG_PWMCLK12);
+		w83781d_write_value(data, W83781D_REG_PWMCLK12,
+				    (reg & 0xf7) | (val << 3));
+
+		reg = w83781d_read_value(data, W83781D_REG_BEEP_CONFIG);
+		w83781d_write_value(data, W83781D_REG_BEEP_CONFIG,
+				    (reg & 0xef) | (!val << 4));
+
+		data->pwm2_enable = val;
+		break;
+
+	default:
+		mutex_unlock(&data->update_lock);
+		return -EINVAL;
+	}
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 0);
+static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 1);
+static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 2);
+static SENSOR_DEVICE_ATTR(pwm4, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 3);
+/* only PWM2 can be enabled/disabled */
+static DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR,
+		show_pwm2_enable, store_pwm2_enable);
+
+static ssize_t
+show_sensor(struct device *dev, struct device_attribute *da, char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct w83781d_data *data = w83781d_update_device(dev);
+	return sprintf(buf, "%d\n", (int)data->sens[attr->index]);
+}
+
+static ssize_t
+store_sensor(struct device *dev, struct device_attribute *da,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct w83781d_data *data = dev_get_drvdata(dev);
+	int nr = attr->index;
+	u32 val, tmp;
+
+	val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+
+	switch (val) {
+	case 1:		/* PII/Celeron diode */
+		tmp = w83781d_read_value(data, W83781D_REG_SCFG1);
+		w83781d_write_value(data, W83781D_REG_SCFG1,
+				    tmp | BIT_SCFG1[nr]);
+		tmp = w83781d_read_value(data, W83781D_REG_SCFG2);
+		w83781d_write_value(data, W83781D_REG_SCFG2,
+				    tmp | BIT_SCFG2[nr]);
+		data->sens[nr] = val;
+		break;
+	case 2:		/* 3904 */
+		tmp = w83781d_read_value(data, W83781D_REG_SCFG1);
+		w83781d_write_value(data, W83781D_REG_SCFG1,
+				    tmp | BIT_SCFG1[nr]);
+		tmp = w83781d_read_value(data, W83781D_REG_SCFG2);
+		w83781d_write_value(data, W83781D_REG_SCFG2,
+				    tmp & ~BIT_SCFG2[nr]);
+		data->sens[nr] = val;
+		break;
+	case W83781D_DEFAULT_BETA:
+		dev_warn(dev, "Sensor type %d is deprecated, please use 4 "
+			 "instead\n", W83781D_DEFAULT_BETA);
+		/* fall through */
+	case 4:		/* thermistor */
+		tmp = w83781d_read_value(data, W83781D_REG_SCFG1);
+		w83781d_write_value(data, W83781D_REG_SCFG1,
+				    tmp & ~BIT_SCFG1[nr]);
+		data->sens[nr] = val;
+		break;
+	default:
+		dev_err(dev, "Invalid sensor type %ld; must be 1, 2, or 4\n",
+		       (long) val);
+		break;
+	}
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO | S_IWUSR,
+	show_sensor, store_sensor, 0);
+static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO | S_IWUSR,
+	show_sensor, store_sensor, 1);
+static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO | S_IWUSR,
+	show_sensor, store_sensor, 2);
+
+/* Assumes that adapter is of I2C, not ISA variety.
+ * OTHERWISE DON'T CALL THIS
+ */
+static int
+w83781d_detect_subclients(struct i2c_client *new_client)
+{
+	int i, val1 = 0, id;
+	int err;
+	int address = new_client->addr;
+	unsigned short sc_addr[2];
+	struct i2c_adapter *adapter = new_client->adapter;
+	struct w83781d_data *data = i2c_get_clientdata(new_client);
+	enum chips kind = data->type;
+
+	id = i2c_adapter_id(adapter);
+
+	if (force_subclients[0] == id && force_subclients[1] == address) {
+		for (i = 2; i <= 3; i++) {
+			if (force_subclients[i] < 0x48 ||
+			    force_subclients[i] > 0x4f) {
+				dev_err(&new_client->dev, "Invalid subclient "
+					"address %d; must be 0x48-0x4f\n",
+					force_subclients[i]);
+				err = -EINVAL;
+				goto ERROR_SC_1;
+			}
+		}
+		w83781d_write_value(data, W83781D_REG_I2C_SUBADDR,
+				(force_subclients[2] & 0x07) |
+				((force_subclients[3] & 0x07) << 4));
+		sc_addr[0] = force_subclients[2];
+	} else {
+		val1 = w83781d_read_value(data, W83781D_REG_I2C_SUBADDR);
+		sc_addr[0] = 0x48 + (val1 & 0x07);
+	}
+
+	if (kind != w83783s) {
+		if (force_subclients[0] == id &&
+		    force_subclients[1] == address) {
+			sc_addr[1] = force_subclients[3];
+		} else {
+			sc_addr[1] = 0x48 + ((val1 >> 4) & 0x07);
+		}
+		if (sc_addr[0] == sc_addr[1]) {
+			dev_err(&new_client->dev,
+			       "Duplicate addresses 0x%x for subclients.\n",
+			       sc_addr[0]);
+			err = -EBUSY;
+			goto ERROR_SC_2;
+		}
+	}
+
+	for (i = 0; i <= 1; i++) {
+		data->lm75[i] = i2c_new_dummy(adapter, sc_addr[i]);
+		if (!data->lm75[i]) {
+			dev_err(&new_client->dev, "Subclient %d "
+				"registration at address 0x%x "
+				"failed.\n", i, sc_addr[i]);
+			err = -ENOMEM;
+			if (i == 1)
+				goto ERROR_SC_3;
+			goto ERROR_SC_2;
+		}
+		if (kind == w83783s)
+			break;
+	}
+
+	return 0;
+
+/* Undo inits in case of errors */
+ERROR_SC_3:
+	i2c_unregister_device(data->lm75[0]);
+ERROR_SC_2:
+ERROR_SC_1:
+	return err;
+}
+
+#define IN_UNIT_ATTRS(X)					\
+	&sensor_dev_attr_in##X##_input.dev_attr.attr,		\
+	&sensor_dev_attr_in##X##_min.dev_attr.attr,		\
+	&sensor_dev_attr_in##X##_max.dev_attr.attr,		\
+	&sensor_dev_attr_in##X##_alarm.dev_attr.attr,		\
+	&sensor_dev_attr_in##X##_beep.dev_attr.attr
+
+#define FAN_UNIT_ATTRS(X)					\
+	&sensor_dev_attr_fan##X##_input.dev_attr.attr,		\
+	&sensor_dev_attr_fan##X##_min.dev_attr.attr,		\
+	&sensor_dev_attr_fan##X##_div.dev_attr.attr,		\
+	&sensor_dev_attr_fan##X##_alarm.dev_attr.attr,		\
+	&sensor_dev_attr_fan##X##_beep.dev_attr.attr
+
+#define TEMP_UNIT_ATTRS(X)					\
+	&sensor_dev_attr_temp##X##_input.dev_attr.attr,		\
+	&sensor_dev_attr_temp##X##_max.dev_attr.attr,		\
+	&sensor_dev_attr_temp##X##_max_hyst.dev_attr.attr,	\
+	&sensor_dev_attr_temp##X##_alarm.dev_attr.attr,		\
+	&sensor_dev_attr_temp##X##_beep.dev_attr.attr
+
+static struct attribute* w83781d_attributes[] = {
+	IN_UNIT_ATTRS(0),
+	IN_UNIT_ATTRS(2),
+	IN_UNIT_ATTRS(3),
+	IN_UNIT_ATTRS(4),
+	IN_UNIT_ATTRS(5),
+	IN_UNIT_ATTRS(6),
+	FAN_UNIT_ATTRS(1),
+	FAN_UNIT_ATTRS(2),
+	FAN_UNIT_ATTRS(3),
+	TEMP_UNIT_ATTRS(1),
+	TEMP_UNIT_ATTRS(2),
+	&dev_attr_cpu0_vid.attr,
+	&dev_attr_vrm.attr,
+	&dev_attr_alarms.attr,
+	&dev_attr_beep_mask.attr,
+	&sensor_dev_attr_beep_enable.dev_attr.attr,
+	NULL
+};
+static const struct attribute_group w83781d_group = {
+	.attrs = w83781d_attributes,
+};
+
+static struct attribute *w83781d_attributes_opt[] = {
+	IN_UNIT_ATTRS(1),
+	IN_UNIT_ATTRS(7),
+	IN_UNIT_ATTRS(8),
+	TEMP_UNIT_ATTRS(3),
+	&sensor_dev_attr_pwm1.dev_attr.attr,
+	&sensor_dev_attr_pwm2.dev_attr.attr,
+	&sensor_dev_attr_pwm3.dev_attr.attr,
+	&sensor_dev_attr_pwm4.dev_attr.attr,
+	&dev_attr_pwm2_enable.attr,
+	&sensor_dev_attr_temp1_type.dev_attr.attr,
+	&sensor_dev_attr_temp2_type.dev_attr.attr,
+	&sensor_dev_attr_temp3_type.dev_attr.attr,
+	NULL
+};
+static const struct attribute_group w83781d_group_opt = {
+	.attrs = w83781d_attributes_opt,
+};
+
+/* No clean up is done on error, it's up to the caller */
+static int
+w83781d_create_files(struct device *dev, int kind, int is_isa)
+{
+	int err;
+
+	if ((err = sysfs_create_group(&dev->kobj, &w83781d_group)))
+		return err;
+
+	if (kind != w83783s) {
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_in1_input.dev_attr))
+		    || (err = device_create_file(dev,
+				&sensor_dev_attr_in1_min.dev_attr))
+		    || (err = device_create_file(dev,
+				&sensor_dev_attr_in1_max.dev_attr))
+		    || (err = device_create_file(dev,
+				&sensor_dev_attr_in1_alarm.dev_attr))
+		    || (err = device_create_file(dev,
+				&sensor_dev_attr_in1_beep.dev_attr)))
+			return err;
+	}
+	if (kind != as99127f && kind != w83781d && kind != w83783s) {
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_in7_input.dev_attr))
+		    || (err = device_create_file(dev,
+				&sensor_dev_attr_in7_min.dev_attr))
+		    || (err = device_create_file(dev,
+				&sensor_dev_attr_in7_max.dev_attr))
+		    || (err = device_create_file(dev,
+				&sensor_dev_attr_in7_alarm.dev_attr))
+		    || (err = device_create_file(dev,
+				&sensor_dev_attr_in7_beep.dev_attr))
+		    || (err = device_create_file(dev,
+				&sensor_dev_attr_in8_input.dev_attr))
+		    || (err = device_create_file(dev,
+				&sensor_dev_attr_in8_min.dev_attr))
+		    || (err = device_create_file(dev,
+				&sensor_dev_attr_in8_max.dev_attr))
+		    || (err = device_create_file(dev,
+				&sensor_dev_attr_in8_alarm.dev_attr))
+		    || (err = device_create_file(dev,
+				&sensor_dev_attr_in8_beep.dev_attr)))
+			return err;
+	}
+	if (kind != w83783s) {
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_temp3_input.dev_attr))
+		    || (err = device_create_file(dev,
+				&sensor_dev_attr_temp3_max.dev_attr))
+		    || (err = device_create_file(dev,
+				&sensor_dev_attr_temp3_max_hyst.dev_attr))
+		    || (err = device_create_file(dev,
+				&sensor_dev_attr_temp3_alarm.dev_attr))
+		    || (err = device_create_file(dev,
+				&sensor_dev_attr_temp3_beep.dev_attr)))
+			return err;
+
+		if (kind != w83781d) {
+			err = sysfs_chmod_file(&dev->kobj,
+				&sensor_dev_attr_temp3_alarm.dev_attr.attr,
+				S_IRUGO | S_IWUSR);
+			if (err)
+				return err;
+		}
+	}
+
+	if (kind != w83781d && kind != as99127f) {
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_pwm1.dev_attr))
+		    || (err = device_create_file(dev,
+				&sensor_dev_attr_pwm2.dev_attr))
+		    || (err = device_create_file(dev, &dev_attr_pwm2_enable)))
+			return err;
+	}
+	if (kind == w83782d && !is_isa) {
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_pwm3.dev_attr))
+		    || (err = device_create_file(dev,
+				&sensor_dev_attr_pwm4.dev_attr)))
+			return err;
+	}
+
+	if (kind != as99127f && kind != w83781d) {
+		if ((err = device_create_file(dev,
+				&sensor_dev_attr_temp1_type.dev_attr))
+		    || (err = device_create_file(dev,
+				&sensor_dev_attr_temp2_type.dev_attr)))
+			return err;
+		if (kind != w83783s) {
+			if ((err = device_create_file(dev,
+					&sensor_dev_attr_temp3_type.dev_attr)))
+				return err;
+		}
+	}
+
+	return 0;
+}
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int
+w83781d_detect(struct i2c_client *client, int kind,
+	       struct i2c_board_info *info)
+{
+	int val1 = 0, val2;
+	struct w83781d_data *isa = w83781d_data_if_isa();
+	struct i2c_adapter *adapter = client->adapter;
+	int address = client->addr;
+	const char *client_name = "";
+	enum vendor { winbond, asus } vendid;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	/* We block updates of the ISA device to minimize the risk of
+	   concurrent access to the same W83781D chip through different
+	   interfaces. */
+	if (isa)
+		mutex_lock(&isa->update_lock);
+
+	/* The w8378?d may be stuck in some other bank than bank 0. This may
+	   make reading other information impossible. Specify a force=... or
+	   force_*=... parameter, and the Winbond will be reset to the right
+	   bank. */
+	if (kind < 0) {
+		if (i2c_smbus_read_byte_data
+		    (client, W83781D_REG_CONFIG) & 0x80) {
+			dev_dbg(&adapter->dev, "Detection of w83781d chip "
+				"failed at step 3\n");
+			goto err_nodev;
+		}
+		val1 = i2c_smbus_read_byte_data(client, W83781D_REG_BANK);
+		val2 = i2c_smbus_read_byte_data(client, W83781D_REG_CHIPMAN);
+		/* Check for Winbond or Asus ID if in bank 0 */
+		if ((!(val1 & 0x07)) &&
+		    (((!(val1 & 0x80)) && (val2 != 0xa3) && (val2 != 0xc3))
+		     || ((val1 & 0x80) && (val2 != 0x5c) && (val2 != 0x12)))) {
+			dev_dbg(&adapter->dev, "Detection of w83781d chip "
+				"failed at step 4\n");
+			goto err_nodev;
+		}
+		/* If Winbond SMBus, check address at 0x48.
+		   Asus doesn't support, except for as99127f rev.2 */
+		if ((!(val1 & 0x80) && (val2 == 0xa3)) ||
+		    ((val1 & 0x80) && (val2 == 0x5c))) {
+			if (i2c_smbus_read_byte_data
+			    (client, W83781D_REG_I2C_ADDR) != address) {
+				dev_dbg(&adapter->dev, "Detection of w83781d "
+					"chip failed at step 5\n");
+				goto err_nodev;
+			}
+		}
+	}
+
+	/* We have either had a force parameter, or we have already detected the
+	   Winbond. Put it now into bank 0 and Vendor ID High Byte */
+	i2c_smbus_write_byte_data(client, W83781D_REG_BANK,
+		(i2c_smbus_read_byte_data(client, W83781D_REG_BANK)
+		 & 0x78) | 0x80);
+
+	/* Determine the chip type. */
+	if (kind <= 0) {
+		/* get vendor ID */
+		val2 = i2c_smbus_read_byte_data(client, W83781D_REG_CHIPMAN);
+		if (val2 == 0x5c)
+			vendid = winbond;
+		else if (val2 == 0x12)
+			vendid = asus;
+		else {
+			dev_dbg(&adapter->dev, "w83781d chip vendor is "
+				"neither Winbond nor Asus\n");
+			goto err_nodev;
+		}
+
+		val1 = i2c_smbus_read_byte_data(client, W83781D_REG_WCHIPID);
+		if ((val1 == 0x10 || val1 == 0x11) && vendid == winbond)
+			kind = w83781d;
+		else if (val1 == 0x30 && vendid == winbond)
+			kind = w83782d;
+		else if (val1 == 0x40 && vendid == winbond && address == 0x2d)
+			kind = w83783s;
+		else if (val1 == 0x31)
+			kind = as99127f;
+		else {
+			if (kind == 0)
+				dev_warn(&adapter->dev, "Ignoring 'force' "
+					 "parameter for unknown chip at "
+					 "address 0x%02x\n", address);
+			goto err_nodev;
+		}
+
+		if ((kind == w83781d || kind == w83782d)
+		 && w83781d_alias_detect(client, val1)) {
+			dev_dbg(&adapter->dev, "Device at 0x%02x appears to "
+				"be the same as ISA device\n", address);
+			goto err_nodev;
+		}
+	}
+
+	if (isa)
+		mutex_unlock(&isa->update_lock);
+
+	if (kind == w83781d) {
+		client_name = "w83781d";
+	} else if (kind == w83782d) {
+		client_name = "w83782d";
+	} else if (kind == w83783s) {
+		client_name = "w83783s";
+	} else if (kind == as99127f) {
+		client_name = "as99127f";
+	}
+
+	strlcpy(info->type, client_name, I2C_NAME_SIZE);
+
+	return 0;
+
+ err_nodev:
+	if (isa)
+		mutex_unlock(&isa->update_lock);
+	return -ENODEV;
+}
+
+static int
+w83781d_probe(struct i2c_client *client, const struct i2c_device_id *id)
+{
+	struct device *dev = &client->dev;
+	struct w83781d_data *data;
+	int err;
+
+	data = kzalloc(sizeof(struct w83781d_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto ERROR1;
+	}
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->lock);
+	mutex_init(&data->update_lock);
+
+	data->type = id->driver_data;
+	data->client = client;
+
+	/* attach secondary i2c lm75-like clients */
+	err = w83781d_detect_subclients(client);
+	if (err)
+		goto ERROR3;
+
+	/* Initialize the chip */
+	w83781d_init_device(dev);
+
+	/* Register sysfs hooks */
+	err = w83781d_create_files(dev, data->type, 0);
+	if (err)
+		goto ERROR4;
+
+	data->hwmon_dev = hwmon_device_register(dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto ERROR4;
+	}
+
+	return 0;
+
+ERROR4:
+	sysfs_remove_group(&dev->kobj, &w83781d_group);
+	sysfs_remove_group(&dev->kobj, &w83781d_group_opt);
+
+	if (data->lm75[0])
+		i2c_unregister_device(data->lm75[0]);
+	if (data->lm75[1])
+		i2c_unregister_device(data->lm75[1]);
+ERROR3:
+	i2c_set_clientdata(client, NULL);
+	kfree(data);
+ERROR1:
+	return err;
+}
+
+static int
+w83781d_remove(struct i2c_client *client)
+{
+	struct w83781d_data *data = i2c_get_clientdata(client);
+	struct device *dev = &client->dev;
+
+	hwmon_device_unregister(data->hwmon_dev);
+
+	sysfs_remove_group(&dev->kobj, &w83781d_group);
+	sysfs_remove_group(&dev->kobj, &w83781d_group_opt);
+
+	if (data->lm75[0])
+		i2c_unregister_device(data->lm75[0]);
+	if (data->lm75[1])
+		i2c_unregister_device(data->lm75[1]);
+
+	i2c_set_clientdata(client, NULL);
+	kfree(data);
+
+	return 0;
+}
+
+static int
+w83781d_read_value_i2c(struct w83781d_data *data, u16 reg)
+{
+	struct i2c_client *client = data->client;
+	int res, bank;
+	struct i2c_client *cl;
+
+	bank = (reg >> 8) & 0x0f;
+	if (bank > 2)
+		/* switch banks */
+		i2c_smbus_write_byte_data(client, W83781D_REG_BANK,
+					  bank);
+	if (bank == 0 || bank > 2) {
+		res = i2c_smbus_read_byte_data(client, reg & 0xff);
+	} else {
+		/* switch to subclient */
+		cl = data->lm75[bank - 1];
+		/* convert from ISA to LM75 I2C addresses */
+		switch (reg & 0xff) {
+		case 0x50:	/* TEMP */
+			res = swab16(i2c_smbus_read_word_data(cl, 0));
+			break;
+		case 0x52:	/* CONFIG */
+			res = i2c_smbus_read_byte_data(cl, 1);
+			break;
+		case 0x53:	/* HYST */
+			res = swab16(i2c_smbus_read_word_data(cl, 2));
+			break;
+		case 0x55:	/* OVER */
+		default:
+			res = swab16(i2c_smbus_read_word_data(cl, 3));
+			break;
+		}
+	}
+	if (bank > 2)
+		i2c_smbus_write_byte_data(client, W83781D_REG_BANK, 0);
+
+	return res;
+}
+
+static int
+w83781d_write_value_i2c(struct w83781d_data *data, u16 reg, u16 value)
+{
+	struct i2c_client *client = data->client;
+	int bank;
+	struct i2c_client *cl;
+
+	bank = (reg >> 8) & 0x0f;
+	if (bank > 2)
+		/* switch banks */
+		i2c_smbus_write_byte_data(client, W83781D_REG_BANK,
+					  bank);
+	if (bank == 0 || bank > 2) {
+		i2c_smbus_write_byte_data(client, reg & 0xff,
+					  value & 0xff);
+	} else {
+		/* switch to subclient */
+		cl = data->lm75[bank - 1];
+		/* convert from ISA to LM75 I2C addresses */
+		switch (reg & 0xff) {
+		case 0x52:	/* CONFIG */
+			i2c_smbus_write_byte_data(cl, 1, value & 0xff);
+			break;
+		case 0x53:	/* HYST */
+			i2c_smbus_write_word_data(cl, 2, swab16(value));
+			break;
+		case 0x55:	/* OVER */
+			i2c_smbus_write_word_data(cl, 3, swab16(value));
+			break;
+		}
+	}
+	if (bank > 2)
+		i2c_smbus_write_byte_data(client, W83781D_REG_BANK, 0);
+
+	return 0;
+}
+
+static void
+w83781d_init_device(struct device *dev)
+{
+	struct w83781d_data *data = dev_get_drvdata(dev);
+	int i, p;
+	int type = data->type;
+	u8 tmp;
+
+	if (reset && type != as99127f) { /* this resets registers we don't have
+					   documentation for on the as99127f */
+		/* Resetting the chip has been the default for a long time,
+		   but it causes the BIOS initializations (fan clock dividers,
+		   thermal sensor types...) to be lost, so it is now optional.
+		   It might even go away if nobody reports it as being useful,
+		   as I see very little reason why this would be needed at
+		   all. */
+		dev_info(dev, "If reset=1 solved a problem you were "
+			 "having, please report!\n");
+
+		/* save these registers */
+		i = w83781d_read_value(data, W83781D_REG_BEEP_CONFIG);
+		p = w83781d_read_value(data, W83781D_REG_PWMCLK12);
+		/* Reset all except Watchdog values and last conversion values
+		   This sets fan-divs to 2, among others */
+		w83781d_write_value(data, W83781D_REG_CONFIG, 0x80);
+		/* Restore the registers and disable power-on abnormal beep.
+		   This saves FAN 1/2/3 input/output values set by BIOS. */
+		w83781d_write_value(data, W83781D_REG_BEEP_CONFIG, i | 0x80);
+		w83781d_write_value(data, W83781D_REG_PWMCLK12, p);
+		/* Disable master beep-enable (reset turns it on).
+		   Individual beep_mask should be reset to off but for some reason
+		   disabling this bit helps some people not get beeped */
+		w83781d_write_value(data, W83781D_REG_BEEP_INTS2, 0);
+	}
+
+	/* Disable power-on abnormal beep, as advised by the datasheet.
+	   Already done if reset=1. */
+	if (init && !reset && type != as99127f) {
+		i = w83781d_read_value(data, W83781D_REG_BEEP_CONFIG);
+		w83781d_write_value(data, W83781D_REG_BEEP_CONFIG, i | 0x80);
+	}
+
+	data->vrm = vid_which_vrm();
+
+	if ((type != w83781d) && (type != as99127f)) {
+		tmp = w83781d_read_value(data, W83781D_REG_SCFG1);
+		for (i = 1; i <= 3; i++) {
+			if (!(tmp & BIT_SCFG1[i - 1])) {
+				data->sens[i - 1] = 4;
+			} else {
+				if (w83781d_read_value
+				    (data,
+				     W83781D_REG_SCFG2) & BIT_SCFG2[i - 1])
+					data->sens[i - 1] = 1;
+				else
+					data->sens[i - 1] = 2;
+			}
+			if (type == w83783s && i == 2)
+				break;
+		}
+	}
+
+	if (init && type != as99127f) {
+		/* Enable temp2 */
+		tmp = w83781d_read_value(data, W83781D_REG_TEMP2_CONFIG);
+		if (tmp & 0x01) {
+			dev_warn(dev, "Enabling temp2, readings "
+				 "might not make sense\n");
+			w83781d_write_value(data, W83781D_REG_TEMP2_CONFIG,
+				tmp & 0xfe);
+		}
+
+		/* Enable temp3 */
+		if (type != w83783s) {
+			tmp = w83781d_read_value(data,
+				W83781D_REG_TEMP3_CONFIG);
+			if (tmp & 0x01) {
+				dev_warn(dev, "Enabling temp3, "
+					 "readings might not make sense\n");
+				w83781d_write_value(data,
+					W83781D_REG_TEMP3_CONFIG, tmp & 0xfe);
+			}
+		}
+	}
+
+	/* Start monitoring */
+	w83781d_write_value(data, W83781D_REG_CONFIG,
+			    (w83781d_read_value(data,
+						W83781D_REG_CONFIG) & 0xf7)
+			    | 0x01);
+
+	/* A few vars need to be filled upon startup */
+	for (i = 0; i < 3; i++) {
+		data->fan_min[i] = w83781d_read_value(data,
+					W83781D_REG_FAN_MIN(i));
+	}
+
+	mutex_init(&data->update_lock);
+}
+
+static struct w83781d_data *w83781d_update_device(struct device *dev)
+{
+	struct w83781d_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
+	int i;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	    || !data->valid) {
+		dev_dbg(dev, "Starting device update\n");
+
+		for (i = 0; i <= 8; i++) {
+			if (data->type == w83783s && i == 1)
+				continue;	/* 783S has no in1 */
+			data->in[i] =
+			    w83781d_read_value(data, W83781D_REG_IN(i));
+			data->in_min[i] =
+			    w83781d_read_value(data, W83781D_REG_IN_MIN(i));
+			data->in_max[i] =
+			    w83781d_read_value(data, W83781D_REG_IN_MAX(i));
+			if ((data->type != w83782d) && (i == 6))
+				break;
+		}
+		for (i = 0; i < 3; i++) {
+			data->fan[i] =
+			    w83781d_read_value(data, W83781D_REG_FAN(i));
+			data->fan_min[i] =
+			    w83781d_read_value(data, W83781D_REG_FAN_MIN(i));
+		}
+		if (data->type != w83781d && data->type != as99127f) {
+			for (i = 0; i < 4; i++) {
+				data->pwm[i] =
+				    w83781d_read_value(data,
+						       W83781D_REG_PWM[i]);
+				if ((data->type != w83782d || !client->driver)
+				    && i == 1)
+					break;
+			}
+			/* Only PWM2 can be disabled */
+			data->pwm2_enable = (w83781d_read_value(data,
+					      W83781D_REG_PWMCLK12) & 0x08) >> 3;
+		}
+
+		data->temp = w83781d_read_value(data, W83781D_REG_TEMP(1));
+		data->temp_max =
+		    w83781d_read_value(data, W83781D_REG_TEMP_OVER(1));
+		data->temp_max_hyst =
+		    w83781d_read_value(data, W83781D_REG_TEMP_HYST(1));
+		data->temp_add[0] =
+		    w83781d_read_value(data, W83781D_REG_TEMP(2));
+		data->temp_max_add[0] =
+		    w83781d_read_value(data, W83781D_REG_TEMP_OVER(2));
+		data->temp_max_hyst_add[0] =
+		    w83781d_read_value(data, W83781D_REG_TEMP_HYST(2));
+		if (data->type != w83783s) {
+			data->temp_add[1] =
+			    w83781d_read_value(data, W83781D_REG_TEMP(3));
+			data->temp_max_add[1] =
+			    w83781d_read_value(data,
+					       W83781D_REG_TEMP_OVER(3));
+			data->temp_max_hyst_add[1] =
+			    w83781d_read_value(data,
+					       W83781D_REG_TEMP_HYST(3));
+		}
+		i = w83781d_read_value(data, W83781D_REG_VID_FANDIV);
+		data->vid = i & 0x0f;
+		data->vid |= (w83781d_read_value(data,
+					W83781D_REG_CHIPID) & 0x01) << 4;
+		data->fan_div[0] = (i >> 4) & 0x03;
+		data->fan_div[1] = (i >> 6) & 0x03;
+		data->fan_div[2] = (w83781d_read_value(data,
+					W83781D_REG_PIN) >> 6) & 0x03;
+		if ((data->type != w83781d) && (data->type != as99127f)) {
+			i = w83781d_read_value(data, W83781D_REG_VBAT);
+			data->fan_div[0] |= (i >> 3) & 0x04;
+			data->fan_div[1] |= (i >> 4) & 0x04;
+			data->fan_div[2] |= (i >> 5) & 0x04;
+		}
+		if (data->type == w83782d) {
+			data->alarms = w83781d_read_value(data,
+						W83782D_REG_ALARM1)
+				     | (w83781d_read_value(data,
+						W83782D_REG_ALARM2) << 8)
+				     | (w83781d_read_value(data,
+						W83782D_REG_ALARM3) << 16);
+		} else if (data->type == w83783s) {
+			data->alarms = w83781d_read_value(data,
+						W83782D_REG_ALARM1)
+				     | (w83781d_read_value(data,
+						W83782D_REG_ALARM2) << 8);
+		} else {
+			/* No real-time status registers, fall back to
+			   interrupt status registers */
+			data->alarms = w83781d_read_value(data,
+						W83781D_REG_ALARM1)
+				     | (w83781d_read_value(data,
+						W83781D_REG_ALARM2) << 8);
+		}
+		i = w83781d_read_value(data, W83781D_REG_BEEP_INTS2);
+		data->beep_mask = (i << 8) +
+		    w83781d_read_value(data, W83781D_REG_BEEP_INTS1);
+		if ((data->type != w83781d) && (data->type != as99127f)) {
+			data->beep_mask |=
+			    w83781d_read_value(data,
+					       W83781D_REG_BEEP_INTS3) << 16;
+		}
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static const struct i2c_device_id w83781d_ids[] = {
+	{ "w83781d", w83781d, },
+	{ "w83782d", w83782d, },
+	{ "w83783s", w83783s, },
+	{ "as99127f", as99127f },
+	{ /* LIST END */ }
+};
+MODULE_DEVICE_TABLE(i2c, w83781d_ids);
+
+static struct i2c_driver w83781d_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name = "w83781d",
+	},
+	.probe		= w83781d_probe,
+	.remove		= w83781d_remove,
+	.id_table	= w83781d_ids,
+	.detect		= w83781d_detect,
+	.address_data	= &addr_data,
+};
+
+/*
+ * ISA related code
+ */
+#ifdef CONFIG_ISA
+
+/* ISA device, if found */
+static struct platform_device *pdev;
+
+static unsigned short isa_address = 0x290;
+
+/* I2C devices get this name attribute automatically, but for ISA devices
+   we must create it by ourselves. */
+static ssize_t
+show_name(struct device *dev, struct device_attribute *devattr, char *buf)
+{
+	struct w83781d_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%s\n", data->name);
+}
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+
+static struct w83781d_data *w83781d_data_if_isa(void)
+{
+	return pdev ? platform_get_drvdata(pdev) : NULL;
+}
+
+/* Returns 1 if the I2C chip appears to be an alias of the ISA chip */
+static int w83781d_alias_detect(struct i2c_client *client, u8 chipid)
+{
+	struct w83781d_data *isa;
+	int i;
+
+	if (!pdev)	/* No ISA chip */
+		return 0;
+
+	isa = platform_get_drvdata(pdev);
+
+	if (w83781d_read_value(isa, W83781D_REG_I2C_ADDR) != client->addr)
+		return 0;	/* Address doesn't match */
+	if (w83781d_read_value(isa, W83781D_REG_WCHIPID) != chipid)
+		return 0;	/* Chip type doesn't match */
+
+	/* We compare all the limit registers, the config register and the
+	 * interrupt mask registers */
+	for (i = 0x2b; i <= 0x3d; i++) {
+		if (w83781d_read_value(isa, i) !=
+		    i2c_smbus_read_byte_data(client, i))
+			return 0;
+	}
+	if (w83781d_read_value(isa, W83781D_REG_CONFIG) !=
+	    i2c_smbus_read_byte_data(client, W83781D_REG_CONFIG))
+		return 0;
+	for (i = 0x43; i <= 0x46; i++) {
+		if (w83781d_read_value(isa, i) !=
+		    i2c_smbus_read_byte_data(client, i))
+			return 0;
+	}
+
+	return 1;
+}
+
+static int
+w83781d_read_value_isa(struct w83781d_data *data, u16 reg)
+{
+	int word_sized, res;
+
+	word_sized = (((reg & 0xff00) == 0x100)
+		      || ((reg & 0xff00) == 0x200))
+	    && (((reg & 0x00ff) == 0x50)
+		|| ((reg & 0x00ff) == 0x53)
+		|| ((reg & 0x00ff) == 0x55));
+	if (reg & 0xff00) {
+		outb_p(W83781D_REG_BANK,
+		       data->isa_addr + W83781D_ADDR_REG_OFFSET);
+		outb_p(reg >> 8,
+		       data->isa_addr + W83781D_DATA_REG_OFFSET);
+	}
+	outb_p(reg & 0xff, data->isa_addr + W83781D_ADDR_REG_OFFSET);
+	res = inb_p(data->isa_addr + W83781D_DATA_REG_OFFSET);
+	if (word_sized) {
+		outb_p((reg & 0xff) + 1,
+		       data->isa_addr + W83781D_ADDR_REG_OFFSET);
+		res =
+		    (res << 8) + inb_p(data->isa_addr +
+				       W83781D_DATA_REG_OFFSET);
+	}
+	if (reg & 0xff00) {
+		outb_p(W83781D_REG_BANK,
+		       data->isa_addr + W83781D_ADDR_REG_OFFSET);
+		outb_p(0, data->isa_addr + W83781D_DATA_REG_OFFSET);
+	}
+	return res;
+}
+
+static void
+w83781d_write_value_isa(struct w83781d_data *data, u16 reg, u16 value)
+{
+	int word_sized;
+
+	word_sized = (((reg & 0xff00) == 0x100)
+		      || ((reg & 0xff00) == 0x200))
+	    && (((reg & 0x00ff) == 0x53)
+		|| ((reg & 0x00ff) == 0x55));
+	if (reg & 0xff00) {
+		outb_p(W83781D_REG_BANK,
+		       data->isa_addr + W83781D_ADDR_REG_OFFSET);
+		outb_p(reg >> 8,
+		       data->isa_addr + W83781D_DATA_REG_OFFSET);
+	}
+	outb_p(reg & 0xff, data->isa_addr + W83781D_ADDR_REG_OFFSET);
+	if (word_sized) {
+		outb_p(value >> 8,
+		       data->isa_addr + W83781D_DATA_REG_OFFSET);
+		outb_p((reg & 0xff) + 1,
+		       data->isa_addr + W83781D_ADDR_REG_OFFSET);
+	}
+	outb_p(value & 0xff, data->isa_addr + W83781D_DATA_REG_OFFSET);
+	if (reg & 0xff00) {
+		outb_p(W83781D_REG_BANK,
+		       data->isa_addr + W83781D_ADDR_REG_OFFSET);
+		outb_p(0, data->isa_addr + W83781D_DATA_REG_OFFSET);
+	}
+}
+
+/* The SMBus locks itself, usually, but nothing may access the Winbond between
+   bank switches. ISA access must always be locked explicitly!
+   We ignore the W83781D BUSY flag at this moment - it could lead to deadlocks,
+   would slow down the W83781D access and should not be necessary.
+   There are some ugly typecasts here, but the good news is - they should
+   nowhere else be necessary! */
+static int
+w83781d_read_value(struct w83781d_data *data, u16 reg)
+{
+	struct i2c_client *client = data->client;
+	int res;
+
+	mutex_lock(&data->lock);
+	if (client)
+		res = w83781d_read_value_i2c(data, reg);
+	else
+		res = w83781d_read_value_isa(data, reg);
+	mutex_unlock(&data->lock);
+	return res;
+}
+
+static int
+w83781d_write_value(struct w83781d_data *data, u16 reg, u16 value)
+{
+	struct i2c_client *client = data->client;
+
+	mutex_lock(&data->lock);
+	if (client)
+		w83781d_write_value_i2c(data, reg, value);
+	else
+		w83781d_write_value_isa(data, reg, value);
+	mutex_unlock(&data->lock);
+	return 0;
+}
+
+static int __devinit
+w83781d_isa_probe(struct platform_device *pdev)
+{
+	int err, reg;
+	struct w83781d_data *data;
+	struct resource *res;
+
+	/* Reserve the ISA region */
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	if (!request_region(res->start + W83781D_ADDR_REG_OFFSET, 2,
+			    "w83781d")) {
+		err = -EBUSY;
+		goto exit;
+	}
+
+	data = kzalloc(sizeof(struct w83781d_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit_release_region;
+	}
+	mutex_init(&data->lock);
+	data->isa_addr = res->start;
+	platform_set_drvdata(pdev, data);
+
+	reg = w83781d_read_value(data, W83781D_REG_WCHIPID);
+	switch (reg) {
+	case 0x30:
+		data->type = w83782d;
+		data->name = "w83782d";
+		break;
+	default:
+		data->type = w83781d;
+		data->name = "w83781d";
+	}
+
+	/* Initialize the W83781D chip */
+	w83781d_init_device(&pdev->dev);
+
+	/* Register sysfs hooks */
+	err = w83781d_create_files(&pdev->dev, data->type, 1);
+	if (err)
+		goto exit_remove_files;
+
+	err = device_create_file(&pdev->dev, &dev_attr_name);
+	if (err)
+		goto exit_remove_files;
+
+	data->hwmon_dev = hwmon_device_register(&pdev->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove_files;
+	}
+
+	return 0;
+
+ exit_remove_files:
+	sysfs_remove_group(&pdev->dev.kobj, &w83781d_group);
+	sysfs_remove_group(&pdev->dev.kobj, &w83781d_group_opt);
+	device_remove_file(&pdev->dev, &dev_attr_name);
+	kfree(data);
+ exit_release_region:
+	release_region(res->start + W83781D_ADDR_REG_OFFSET, 2);
+ exit:
+	return err;
+}
+
+static int __devexit
+w83781d_isa_remove(struct platform_device *pdev)
+{
+	struct w83781d_data *data = platform_get_drvdata(pdev);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&pdev->dev.kobj, &w83781d_group);
+	sysfs_remove_group(&pdev->dev.kobj, &w83781d_group_opt);
+	device_remove_file(&pdev->dev, &dev_attr_name);
+	release_region(data->isa_addr + W83781D_ADDR_REG_OFFSET, 2);
+	kfree(data);
+
+	return 0;
+}
+
+static struct platform_driver w83781d_isa_driver = {
+	.driver = {
+		.owner = THIS_MODULE,
+		.name = "w83781d",
+	},
+	.probe = w83781d_isa_probe,
+	.remove = __devexit_p(w83781d_isa_remove),
+};
+
+/* return 1 if a supported chip is found, 0 otherwise */
+static int __init
+w83781d_isa_found(unsigned short address)
+{
+	int val, save, found = 0;
+
+	/* We have to request the region in two parts because some
+	   boards declare base+4 to base+7 as a PNP device */
+	if (!request_region(address, 4, "w83781d")) {
+		pr_debug("w83781d: Failed to request low part of region\n");
+		return 0;
+	}
+	if (!request_region(address + 4, 4, "w83781d")) {
+		pr_debug("w83781d: Failed to request high part of region\n");
+		release_region(address, 4);
+		return 0;
+	}
+
+#define REALLY_SLOW_IO
+	/* We need the timeouts for at least some W83781D-like
+	   chips. But only if we read 'undefined' registers. */
+	val = inb_p(address + 1);
+	if (inb_p(address + 2) != val
+	 || inb_p(address + 3) != val
+	 || inb_p(address + 7) != val) {
+		pr_debug("w83781d: Detection failed at step 1\n");
+		goto release;
+	}
+#undef REALLY_SLOW_IO
+
+	/* We should be able to change the 7 LSB of the address port. The
+	   MSB (busy flag) should be clear initially, set after the write. */
+	save = inb_p(address + W83781D_ADDR_REG_OFFSET);
+	if (save & 0x80) {
+		pr_debug("w83781d: Detection failed at step 2\n");
+		goto release;
+	}
+	val = ~save & 0x7f;
+	outb_p(val, address + W83781D_ADDR_REG_OFFSET);
+	if (inb_p(address + W83781D_ADDR_REG_OFFSET) != (val | 0x80)) {
+		outb_p(save, address + W83781D_ADDR_REG_OFFSET);
+		pr_debug("w83781d: Detection failed at step 3\n");
+		goto release;
+	}
+
+	/* We found a device, now see if it could be a W83781D */
+	outb_p(W83781D_REG_CONFIG, address + W83781D_ADDR_REG_OFFSET);
+	val = inb_p(address + W83781D_DATA_REG_OFFSET);
+	if (val & 0x80) {
+		pr_debug("w83781d: Detection failed at step 4\n");
+		goto release;
+	}
+	outb_p(W83781D_REG_BANK, address + W83781D_ADDR_REG_OFFSET);
+	save = inb_p(address + W83781D_DATA_REG_OFFSET);
+	outb_p(W83781D_REG_CHIPMAN, address + W83781D_ADDR_REG_OFFSET);
+	val = inb_p(address + W83781D_DATA_REG_OFFSET);
+	if ((!(save & 0x80) && (val != 0xa3))
+	 || ((save & 0x80) && (val != 0x5c))) {
+		pr_debug("w83781d: Detection failed at step 5\n");
+		goto release;
+	}
+	outb_p(W83781D_REG_I2C_ADDR, address + W83781D_ADDR_REG_OFFSET);
+	val = inb_p(address + W83781D_DATA_REG_OFFSET);
+	if (val < 0x03 || val > 0x77) {	/* Not a valid I2C address */
+		pr_debug("w83781d: Detection failed at step 6\n");
+		goto release;
+	}
+
+	/* The busy flag should be clear again */
+	if (inb_p(address + W83781D_ADDR_REG_OFFSET) & 0x80) {
+		pr_debug("w83781d: Detection failed at step 7\n");
+		goto release;
+	}
+
+	/* Determine the chip type */
+	outb_p(W83781D_REG_BANK, address + W83781D_ADDR_REG_OFFSET);
+	save = inb_p(address + W83781D_DATA_REG_OFFSET);
+	outb_p(save & 0xf8, address + W83781D_DATA_REG_OFFSET);
+	outb_p(W83781D_REG_WCHIPID, address + W83781D_ADDR_REG_OFFSET);
+	val = inb_p(address + W83781D_DATA_REG_OFFSET);
+	if ((val & 0xfe) == 0x10	/* W83781D */
+	 || val == 0x30)		/* W83782D */
+		found = 1;
+
+	if (found)
+		pr_info("w83781d: Found a %s chip at %#x\n",
+			val == 0x30 ? "W83782D" : "W83781D", (int)address);
+
+ release:
+	release_region(address + 4, 4);
+	release_region(address, 4);
+	return found;
+}
+
+static int __init
+w83781d_isa_device_add(unsigned short address)
+{
+	struct resource res = {
+		.start	= address,
+		.end	= address + W83781D_EXTENT - 1,
+		.name	= "w83781d",
+		.flags	= IORESOURCE_IO,
+	};
+	int err;
+
+	pdev = platform_device_alloc("w83781d", address);
+	if (!pdev) {
+		err = -ENOMEM;
+		printk(KERN_ERR "w83781d: Device allocation failed\n");
+		goto exit;
+	}
+
+	err = platform_device_add_resources(pdev, &res, 1);
+	if (err) {
+		printk(KERN_ERR "w83781d: Device resource addition failed "
+		       "(%d)\n", err);
+		goto exit_device_put;
+	}
+
+	err = platform_device_add(pdev);
+	if (err) {
+		printk(KERN_ERR "w83781d: Device addition failed (%d)\n",
+		       err);
+		goto exit_device_put;
+	}
+
+	return 0;
+
+ exit_device_put:
+	platform_device_put(pdev);
+ exit:
+	pdev = NULL;
+	return err;
+}
+
+static int __init
+w83781d_isa_register(void)
+{
+	int res;
+
+	if (w83781d_isa_found(isa_address)) {
+		res = platform_driver_register(&w83781d_isa_driver);
+		if (res)
+			goto exit;
+
+		/* Sets global pdev as a side effect */
+		res = w83781d_isa_device_add(isa_address);
+		if (res)
+			goto exit_unreg_isa_driver;
+	}
+
+	return 0;
+
+exit_unreg_isa_driver:
+	platform_driver_unregister(&w83781d_isa_driver);
+exit:
+	return res;
+}
+
+static void
+w83781d_isa_unregister(void)
+{
+	if (pdev) {
+		platform_device_unregister(pdev);
+		platform_driver_unregister(&w83781d_isa_driver);
+	}
+}
+#else /* !CONFIG_ISA */
+
+static struct w83781d_data *w83781d_data_if_isa(void)
+{
+	return NULL;
+}
+
+static int
+w83781d_alias_detect(struct i2c_client *client, u8 chipid)
+{
+	return 0;
+}
+
+static int
+w83781d_read_value(struct w83781d_data *data, u16 reg)
+{
+	int res;
+
+	mutex_lock(&data->lock);
+	res = w83781d_read_value_i2c(data, reg);
+	mutex_unlock(&data->lock);
+
+	return res;
+}
+
+static int
+w83781d_write_value(struct w83781d_data *data, u16 reg, u16 value)
+{
+	mutex_lock(&data->lock);
+	w83781d_write_value_i2c(data, reg, value);
+	mutex_unlock(&data->lock);
+
+	return 0;
+}
+
+static int __init
+w83781d_isa_register(void)
+{
+	return 0;
+}
+
+static void
+w83781d_isa_unregister(void)
+{
+}
+#endif /* CONFIG_ISA */
+
+static int __init
+sensors_w83781d_init(void)
+{
+	int res;
+
+	/* We register the ISA device first, so that we can skip the
+	 * registration of an I2C interface to the same device. */
+	res = w83781d_isa_register();
+	if (res)
+		goto exit;
+
+	res = i2c_add_driver(&w83781d_driver);
+	if (res)
+		goto exit_unreg_isa;
+
+	return 0;
+
+ exit_unreg_isa:
+	w83781d_isa_unregister();
+ exit:
+	return res;
+}
+
+static void __exit
+sensors_w83781d_exit(void)
+{
+	w83781d_isa_unregister();
+	i2c_del_driver(&w83781d_driver);
+}
+
+MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
+	      "Philip Edelbrock <phil@netroedge.com>, "
+	      "and Mark Studebaker <mdsxyz123@yahoo.com>");
+MODULE_DESCRIPTION("W83781D driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_w83781d_init);
+module_exit(sensors_w83781d_exit);
diff --git a/drivers/hwmon/w83791d.c b/drivers/hwmon/w83791d.c
new file mode 100644
index 0000000..5768def
--- /dev/null
+++ b/drivers/hwmon/w83791d.c
@@ -0,0 +1,1665 @@
+/*
+    w83791d.c - Part of lm_sensors, Linux kernel modules for hardware
+                monitoring
+
+    Copyright (C) 2006-2007 Charles Spirakis <bezaur@gmail.com>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+    Supports following chips:
+
+    Chip	#vin	#fanin	#pwm	#temp	wchipid	vendid	i2c	ISA
+    w83791d	10	5	5	3	0x71	0x5ca3	yes	no
+
+    The w83791d chip appears to be part way between the 83781d and the
+    83792d. Thus, this file is derived from both the w83792d.c and
+    w83781d.c files.
+
+    The w83791g chip is the same as the w83791d but lead-free.
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-vid.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+#define NUMBER_OF_VIN		10
+#define NUMBER_OF_FANIN		5
+#define NUMBER_OF_TEMPIN	3
+#define NUMBER_OF_PWM		5
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
+						I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_1(w83791d);
+I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: "
+			"{bus, clientaddr, subclientaddr1, subclientaddr2}");
+
+static int reset;
+module_param(reset, bool, 0);
+MODULE_PARM_DESC(reset, "Set to one to force a hardware chip reset");
+
+static int init;
+module_param(init, bool, 0);
+MODULE_PARM_DESC(init, "Set to one to force extra software initialization");
+
+/* The W83791D registers */
+static const u8 W83791D_REG_IN[NUMBER_OF_VIN] = {
+	0x20,			/* VCOREA in DataSheet */
+	0x21,			/* VINR0 in DataSheet */
+	0x22,			/* +3.3VIN in DataSheet */
+	0x23,			/* VDD5V in DataSheet */
+	0x24,			/* +12VIN in DataSheet */
+	0x25,			/* -12VIN in DataSheet */
+	0x26,			/* -5VIN in DataSheet */
+	0xB0,			/* 5VSB in DataSheet */
+	0xB1,			/* VBAT in DataSheet */
+	0xB2			/* VINR1 in DataSheet */
+};
+
+static const u8 W83791D_REG_IN_MAX[NUMBER_OF_VIN] = {
+	0x2B,			/* VCOREA High Limit in DataSheet */
+	0x2D,			/* VINR0 High Limit in DataSheet */
+	0x2F,			/* +3.3VIN High Limit in DataSheet */
+	0x31,			/* VDD5V High Limit in DataSheet */
+	0x33,			/* +12VIN High Limit in DataSheet */
+	0x35,			/* -12VIN High Limit in DataSheet */
+	0x37,			/* -5VIN High Limit in DataSheet */
+	0xB4,			/* 5VSB High Limit in DataSheet */
+	0xB6,			/* VBAT High Limit in DataSheet */
+	0xB8			/* VINR1 High Limit in DataSheet */
+};
+static const u8 W83791D_REG_IN_MIN[NUMBER_OF_VIN] = {
+	0x2C,			/* VCOREA Low Limit in DataSheet */
+	0x2E,			/* VINR0 Low Limit in DataSheet */
+	0x30,			/* +3.3VIN Low Limit in DataSheet */
+	0x32,			/* VDD5V Low Limit in DataSheet */
+	0x34,			/* +12VIN Low Limit in DataSheet */
+	0x36,			/* -12VIN Low Limit in DataSheet */
+	0x38,			/* -5VIN Low Limit in DataSheet */
+	0xB5,			/* 5VSB Low Limit in DataSheet */
+	0xB7,			/* VBAT Low Limit in DataSheet */
+	0xB9			/* VINR1 Low Limit in DataSheet */
+};
+static const u8 W83791D_REG_FAN[NUMBER_OF_FANIN] = {
+	0x28,			/* FAN 1 Count in DataSheet */
+	0x29,			/* FAN 2 Count in DataSheet */
+	0x2A,			/* FAN 3 Count in DataSheet */
+	0xBA,			/* FAN 4 Count in DataSheet */
+	0xBB,			/* FAN 5 Count in DataSheet */
+};
+static const u8 W83791D_REG_FAN_MIN[NUMBER_OF_FANIN] = {
+	0x3B,			/* FAN 1 Count Low Limit in DataSheet */
+	0x3C,			/* FAN 2 Count Low Limit in DataSheet */
+	0x3D,			/* FAN 3 Count Low Limit in DataSheet */
+	0xBC,			/* FAN 4 Count Low Limit in DataSheet */
+	0xBD,			/* FAN 5 Count Low Limit in DataSheet */
+};
+
+static const u8 W83791D_REG_PWM[NUMBER_OF_PWM] = {
+	0x81,			/* PWM 1 duty cycle register in DataSheet */
+	0x83,			/* PWM 2 duty cycle register in DataSheet */
+	0x94,			/* PWM 3 duty cycle register in DataSheet */
+	0xA0,			/* PWM 4 duty cycle register in DataSheet */
+	0xA1,			/* PWM 5 duty cycle register in DataSheet */
+};
+
+static const u8 W83791D_REG_TEMP_TARGET[3] = {
+	0x85,			/* PWM 1 target temperature for temp 1 */
+	0x86,			/* PWM 2 target temperature for temp 2 */
+	0x96,			/* PWM 3 target temperature for temp 3 */
+};
+
+static const u8 W83791D_REG_TEMP_TOL[2] = {
+	0x87,			/* PWM 1/2 temperature tolerance */
+	0x97,			/* PWM 3 temperature tolerance */
+};
+
+static const u8 W83791D_REG_FAN_CFG[2] = {
+	0x84,			/* FAN 1/2 configuration */
+	0x95,			/* FAN 3 configuration */
+};
+
+static const u8 W83791D_REG_FAN_DIV[3] = {
+	0x47,			/* contains FAN1 and FAN2 Divisor */
+	0x4b,			/* contains FAN3 Divisor */
+	0x5C,			/* contains FAN4 and FAN5 Divisor */
+};
+
+#define W83791D_REG_BANK		0x4E
+#define W83791D_REG_TEMP2_CONFIG	0xC2
+#define W83791D_REG_TEMP3_CONFIG	0xCA
+
+static const u8 W83791D_REG_TEMP1[3] = {
+	0x27,			/* TEMP 1 in DataSheet */
+	0x39,			/* TEMP 1 Over in DataSheet */
+	0x3A,			/* TEMP 1 Hyst in DataSheet */
+};
+
+static const u8 W83791D_REG_TEMP_ADD[2][6] = {
+	{0xC0,			/* TEMP 2 in DataSheet */
+	 0xC1,			/* TEMP 2(0.5 deg) in DataSheet */
+	 0xC5,			/* TEMP 2 Over High part in DataSheet */
+	 0xC6,			/* TEMP 2 Over Low part in DataSheet */
+	 0xC3,			/* TEMP 2 Thyst High part in DataSheet */
+	 0xC4},			/* TEMP 2 Thyst Low part in DataSheet */
+	{0xC8,			/* TEMP 3 in DataSheet */
+	 0xC9,			/* TEMP 3(0.5 deg) in DataSheet */
+	 0xCD,			/* TEMP 3 Over High part in DataSheet */
+	 0xCE,			/* TEMP 3 Over Low part in DataSheet */
+	 0xCB,			/* TEMP 3 Thyst High part in DataSheet */
+	 0xCC}			/* TEMP 3 Thyst Low part in DataSheet */
+};
+
+#define W83791D_REG_BEEP_CONFIG		0x4D
+
+static const u8 W83791D_REG_BEEP_CTRL[3] = {
+	0x56,			/* BEEP Control Register 1 */
+	0x57,			/* BEEP Control Register 2 */
+	0xA3,			/* BEEP Control Register 3 */
+};
+
+#define W83791D_REG_GPIO		0x15
+#define W83791D_REG_CONFIG		0x40
+#define W83791D_REG_VID_FANDIV		0x47
+#define W83791D_REG_DID_VID4		0x49
+#define W83791D_REG_WCHIPID		0x58
+#define W83791D_REG_CHIPMAN		0x4F
+#define W83791D_REG_PIN			0x4B
+#define W83791D_REG_I2C_SUBADDR		0x4A
+
+#define W83791D_REG_ALARM1 0xA9	/* realtime status register1 */
+#define W83791D_REG_ALARM2 0xAA	/* realtime status register2 */
+#define W83791D_REG_ALARM3 0xAB	/* realtime status register3 */
+
+#define W83791D_REG_VBAT		0x5D
+#define W83791D_REG_I2C_ADDR		0x48
+
+/* The SMBus locks itself. The Winbond W83791D has a bank select register
+   (index 0x4e), but the driver only accesses registers in bank 0. Since
+   we don't switch banks, we don't need any special code to handle
+   locking access between bank switches */
+static inline int w83791d_read(struct i2c_client *client, u8 reg)
+{
+	return i2c_smbus_read_byte_data(client, reg);
+}
+
+static inline int w83791d_write(struct i2c_client *client, u8 reg, u8 value)
+{
+	return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+/* The analog voltage inputs have 16mV LSB. Since the sysfs output is
+   in mV as would be measured on the chip input pin, need to just
+   multiply/divide by 16 to translate from/to register values. */
+#define IN_TO_REG(val)		(SENSORS_LIMIT((((val) + 8) / 16), 0, 255))
+#define IN_FROM_REG(val)	((val) * 16)
+
+static u8 fan_to_reg(long rpm, int div)
+{
+	if (rpm == 0)
+		return 255;
+	rpm = SENSORS_LIMIT(rpm, 1, 1000000);
+	return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
+}
+
+#define FAN_FROM_REG(val,div)	((val) == 0   ? -1 : \
+				((val) == 255 ? 0 : \
+					1350000 / ((val) * (div))))
+
+/* for temp1 which is 8-bit resolution, LSB = 1 degree Celsius */
+#define TEMP1_FROM_REG(val)	((val) * 1000)
+#define TEMP1_TO_REG(val)	((val) <= -128000 ? -128 : \
+				 (val) >= 127000 ? 127 : \
+				 (val) < 0 ? ((val) - 500) / 1000 : \
+				 ((val) + 500) / 1000)
+
+/* for temp2 and temp3 which are 9-bit resolution, LSB = 0.5 degree Celsius
+   Assumes the top 8 bits are the integral amount and the bottom 8 bits
+   are the fractional amount. Since we only have 0.5 degree resolution,
+   the bottom 7 bits will always be zero */
+#define TEMP23_FROM_REG(val)	((val) / 128 * 500)
+#define TEMP23_TO_REG(val)	((val) <= -128000 ? 0x8000 : \
+				 (val) >= 127500 ? 0x7F80 : \
+				 (val) < 0 ? ((val) - 250) / 500 * 128 : \
+				 ((val) + 250) / 500 * 128)
+
+/* for thermal cruise target temp, 7-bits, LSB = 1 degree Celsius */
+#define TARGET_TEMP_TO_REG(val)		((val) < 0 ? 0 : \
+					(val) >= 127000 ? 127 : \
+					((val) + 500) / 1000)
+
+/* for thermal cruise temp tolerance, 4-bits, LSB = 1 degree Celsius */
+#define TOL_TEMP_TO_REG(val)		((val) < 0 ? 0 : \
+					(val) >= 15000 ? 15 : \
+					((val) + 500) / 1000)
+
+#define BEEP_MASK_TO_REG(val)		((val) & 0xffffff)
+#define BEEP_MASK_FROM_REG(val)		((val) & 0xffffff)
+
+#define DIV_FROM_REG(val)		(1 << (val))
+
+static u8 div_to_reg(int nr, long val)
+{
+	int i;
+
+	/* fan divisors max out at 128 */
+	val = SENSORS_LIMIT(val, 1, 128) >> 1;
+	for (i = 0; i < 7; i++) {
+		if (val == 0)
+			break;
+		val >>= 1;
+	}
+	return (u8) i;
+}
+
+struct w83791d_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+
+	char valid;			/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+
+	/* array of 2 pointers to subclients */
+	struct i2c_client *lm75[2];
+
+	/* volts */
+	u8 in[NUMBER_OF_VIN];		/* Register value */
+	u8 in_max[NUMBER_OF_VIN];	/* Register value */
+	u8 in_min[NUMBER_OF_VIN];	/* Register value */
+
+	/* fans */
+	u8 fan[NUMBER_OF_FANIN];	/* Register value */
+	u8 fan_min[NUMBER_OF_FANIN];	/* Register value */
+	u8 fan_div[NUMBER_OF_FANIN];	/* Register encoding, shifted right */
+
+	/* Temperature sensors */
+
+	s8 temp1[3];		/* current, over, thyst */
+	s16 temp_add[2][3];	/* fixed point value. Top 8 bits are the
+				   integral part, bottom 8 bits are the
+				   fractional part. We only use the top
+				   9 bits as the resolution is only
+				   to the 0.5 degree C...
+				   two sensors with three values
+				   (cur, over, hyst)  */
+
+	/* PWMs */
+	u8 pwm[5];		/* pwm duty cycle */
+	u8 pwm_enable[3];	/* pwm enable status for fan 1-3
+					(fan 4-5 only support manual mode) */
+
+	u8 temp_target[3];	/* pwm 1-3 target temperature */
+	u8 temp_tolerance[3];	/* pwm 1-3 temperature tolerance */
+
+	/* Misc */
+	u32 alarms;		/* realtime status register encoding,combined */
+	u8 beep_enable;		/* Global beep enable */
+	u32 beep_mask;		/* Mask off specific beeps */
+	u8 vid;			/* Register encoding, combined */
+	u8 vrm;			/* hwmon-vid */
+};
+
+static int w83791d_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int w83791d_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
+static int w83791d_remove(struct i2c_client *client);
+
+static int w83791d_read(struct i2c_client *client, u8 register);
+static int w83791d_write(struct i2c_client *client, u8 register, u8 value);
+static struct w83791d_data *w83791d_update_device(struct device *dev);
+
+#ifdef DEBUG
+static void w83791d_print_debug(struct w83791d_data *data, struct device *dev);
+#endif
+
+static void w83791d_init_client(struct i2c_client *client);
+
+static const struct i2c_device_id w83791d_id[] = {
+	{ "w83791d", w83791d },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, w83791d_id);
+
+static struct i2c_driver w83791d_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name = "w83791d",
+	},
+	.probe		= w83791d_probe,
+	.remove		= w83791d_remove,
+	.id_table	= w83791d_id,
+	.detect		= w83791d_detect,
+	.address_data	= &addr_data,
+};
+
+/* following are the sysfs callback functions */
+#define show_in_reg(reg) \
+static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
+			char *buf) \
+{ \
+	struct sensor_device_attribute *sensor_attr = \
+						to_sensor_dev_attr(attr); \
+	struct w83791d_data *data = w83791d_update_device(dev); \
+	int nr = sensor_attr->index; \
+	return sprintf(buf,"%d\n", IN_FROM_REG(data->reg[nr])); \
+}
+
+show_in_reg(in);
+show_in_reg(in_min);
+show_in_reg(in_max);
+
+#define store_in_reg(REG, reg) \
+static ssize_t store_in_##reg(struct device *dev, \
+				struct device_attribute *attr, \
+				const char *buf, size_t count) \
+{ \
+	struct sensor_device_attribute *sensor_attr = \
+						to_sensor_dev_attr(attr); \
+	struct i2c_client *client = to_i2c_client(dev); \
+	struct w83791d_data *data = i2c_get_clientdata(client); \
+	unsigned long val = simple_strtoul(buf, NULL, 10); \
+	int nr = sensor_attr->index; \
+	 \
+	mutex_lock(&data->update_lock); \
+	data->in_##reg[nr] = IN_TO_REG(val); \
+	w83791d_write(client, W83791D_REG_IN_##REG[nr], data->in_##reg[nr]); \
+	mutex_unlock(&data->update_lock); \
+	 \
+	return count; \
+}
+store_in_reg(MIN, min);
+store_in_reg(MAX, max);
+
+static struct sensor_device_attribute sda_in_input[] = {
+	SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0),
+	SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1),
+	SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2),
+	SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3),
+	SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4),
+	SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5),
+	SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6),
+	SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7),
+	SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8),
+	SENSOR_ATTR(in9_input, S_IRUGO, show_in, NULL, 9),
+};
+
+static struct sensor_device_attribute sda_in_min[] = {
+	SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 0),
+	SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 1),
+	SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 2),
+	SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 3),
+	SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 4),
+	SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 5),
+	SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 6),
+	SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 7),
+	SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 8),
+	SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 9),
+};
+
+static struct sensor_device_attribute sda_in_max[] = {
+	SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 0),
+	SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 1),
+	SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 2),
+	SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 3),
+	SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 4),
+	SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 5),
+	SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 6),
+	SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 7),
+	SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 8),
+	SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 9),
+};
+
+
+static ssize_t show_beep(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	struct sensor_device_attribute *sensor_attr =
+						to_sensor_dev_attr(attr);
+	struct w83791d_data *data = w83791d_update_device(dev);
+	int bitnr = sensor_attr->index;
+
+	return sprintf(buf, "%d\n", (data->beep_mask >> bitnr) & 1);
+}
+
+static ssize_t store_beep(struct device *dev, struct device_attribute *attr,
+			const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr =
+						to_sensor_dev_attr(attr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83791d_data *data = i2c_get_clientdata(client);
+	int bitnr = sensor_attr->index;
+	int bytenr = bitnr / 8;
+	long val = simple_strtol(buf, NULL, 10) ? 1 : 0;
+
+	mutex_lock(&data->update_lock);
+
+	data->beep_mask &= ~(0xff << (bytenr * 8));
+	data->beep_mask |= w83791d_read(client, W83791D_REG_BEEP_CTRL[bytenr])
+		<< (bytenr * 8);
+
+	data->beep_mask &= ~(1 << bitnr);
+	data->beep_mask |= val << bitnr;
+
+	w83791d_write(client, W83791D_REG_BEEP_CTRL[bytenr],
+		(data->beep_mask >> (bytenr * 8)) & 0xff);
+
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	struct sensor_device_attribute *sensor_attr =
+						to_sensor_dev_attr(attr);
+	struct w83791d_data *data = w83791d_update_device(dev);
+	int bitnr = sensor_attr->index;
+
+	return sprintf(buf, "%d\n", (data->alarms >> bitnr) & 1);
+}
+
+/* Note: The bitmask for the beep enable/disable is different than
+   the bitmask for the alarm. */
+static struct sensor_device_attribute sda_in_beep[] = {
+	SENSOR_ATTR(in0_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 0),
+	SENSOR_ATTR(in1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 13),
+	SENSOR_ATTR(in2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 2),
+	SENSOR_ATTR(in3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 3),
+	SENSOR_ATTR(in4_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 8),
+	SENSOR_ATTR(in5_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 9),
+	SENSOR_ATTR(in6_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 10),
+	SENSOR_ATTR(in7_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 16),
+	SENSOR_ATTR(in8_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 17),
+	SENSOR_ATTR(in9_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 14),
+};
+
+static struct sensor_device_attribute sda_in_alarm[] = {
+	SENSOR_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0),
+	SENSOR_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1),
+	SENSOR_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2),
+	SENSOR_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3),
+	SENSOR_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8),
+	SENSOR_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 9),
+	SENSOR_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 10),
+	SENSOR_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19),
+	SENSOR_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20),
+	SENSOR_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 14),
+};
+
+#define show_fan_reg(reg) \
+static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
+				char *buf) \
+{ \
+	struct sensor_device_attribute *sensor_attr = \
+						to_sensor_dev_attr(attr); \
+	struct w83791d_data *data = w83791d_update_device(dev); \
+	int nr = sensor_attr->index; \
+	return sprintf(buf,"%d\n", \
+		FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
+}
+
+show_fan_reg(fan);
+show_fan_reg(fan_min);
+
+static ssize_t store_fan_min(struct device *dev, struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83791d_data *data = i2c_get_clientdata(client);
+	unsigned long val = simple_strtoul(buf, NULL, 10);
+	int nr = sensor_attr->index;
+
+	mutex_lock(&data->update_lock);
+	data->fan_min[nr] = fan_to_reg(val, DIV_FROM_REG(data->fan_div[nr]));
+	w83791d_write(client, W83791D_REG_FAN_MIN[nr], data->fan_min[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
+				char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct w83791d_data *data = w83791d_update_device(dev);
+	return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr]));
+}
+
+/* Note: we save and restore the fan minimum here, because its value is
+   determined in part by the fan divisor.  This follows the principle of
+   least suprise; the user doesn't expect the fan minimum to change just
+   because the divisor changed. */
+static ssize_t store_fan_div(struct device *dev, struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83791d_data *data = i2c_get_clientdata(client);
+	int nr = sensor_attr->index;
+	unsigned long min;
+	u8 tmp_fan_div;
+	u8 fan_div_reg;
+	u8 vbat_reg;
+	int indx = 0;
+	u8 keep_mask = 0;
+	u8 new_shift = 0;
+
+	/* Save fan_min */
+	min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]));
+
+	mutex_lock(&data->update_lock);
+	data->fan_div[nr] = div_to_reg(nr, simple_strtoul(buf, NULL, 10));
+
+	switch (nr) {
+	case 0:
+		indx = 0;
+		keep_mask = 0xcf;
+		new_shift = 4;
+		break;
+	case 1:
+		indx = 0;
+		keep_mask = 0x3f;
+		new_shift = 6;
+		break;
+	case 2:
+		indx = 1;
+		keep_mask = 0x3f;
+		new_shift = 6;
+		break;
+	case 3:
+		indx = 2;
+		keep_mask = 0xf8;
+		new_shift = 0;
+		break;
+	case 4:
+		indx = 2;
+		keep_mask = 0x8f;
+		new_shift = 4;
+		break;
+#ifdef DEBUG
+	default:
+		dev_warn(dev, "store_fan_div: Unexpected nr seen: %d\n", nr);
+		count = -EINVAL;
+		goto err_exit;
+#endif
+	}
+
+	fan_div_reg = w83791d_read(client, W83791D_REG_FAN_DIV[indx])
+			& keep_mask;
+	tmp_fan_div = (data->fan_div[nr] << new_shift) & ~keep_mask;
+
+	w83791d_write(client, W83791D_REG_FAN_DIV[indx],
+				fan_div_reg | tmp_fan_div);
+
+	/* Bit 2 of fans 0-2 is stored in the vbat register (bits 5-7) */
+	if (nr < 3) {
+		keep_mask = ~(1 << (nr + 5));
+		vbat_reg = w83791d_read(client, W83791D_REG_VBAT)
+				& keep_mask;
+		tmp_fan_div = (data->fan_div[nr] << (3 + nr)) & ~keep_mask;
+		w83791d_write(client, W83791D_REG_VBAT,
+				vbat_reg | tmp_fan_div);
+	}
+
+	/* Restore fan_min */
+	data->fan_min[nr] = fan_to_reg(min, DIV_FROM_REG(data->fan_div[nr]));
+	w83791d_write(client, W83791D_REG_FAN_MIN[nr], data->fan_min[nr]);
+
+#ifdef DEBUG
+err_exit:
+#endif
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static struct sensor_device_attribute sda_fan_input[] = {
+	SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
+	SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
+	SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2),
+	SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3),
+	SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4),
+};
+
+static struct sensor_device_attribute sda_fan_min[] = {
+	SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO,
+			show_fan_min, store_fan_min, 0),
+	SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO,
+			show_fan_min, store_fan_min, 1),
+	SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO,
+			show_fan_min, store_fan_min, 2),
+	SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO,
+			show_fan_min, store_fan_min, 3),
+	SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO,
+			show_fan_min, store_fan_min, 4),
+};
+
+static struct sensor_device_attribute sda_fan_div[] = {
+	SENSOR_ATTR(fan1_div, S_IWUSR | S_IRUGO,
+			show_fan_div, store_fan_div, 0),
+	SENSOR_ATTR(fan2_div, S_IWUSR | S_IRUGO,
+			show_fan_div, store_fan_div, 1),
+	SENSOR_ATTR(fan3_div, S_IWUSR | S_IRUGO,
+			show_fan_div, store_fan_div, 2),
+	SENSOR_ATTR(fan4_div, S_IWUSR | S_IRUGO,
+			show_fan_div, store_fan_div, 3),
+	SENSOR_ATTR(fan5_div, S_IWUSR | S_IRUGO,
+			show_fan_div, store_fan_div, 4),
+};
+
+static struct sensor_device_attribute sda_fan_beep[] = {
+	SENSOR_ATTR(fan1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 6),
+	SENSOR_ATTR(fan2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 7),
+	SENSOR_ATTR(fan3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 11),
+	SENSOR_ATTR(fan4_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 21),
+	SENSOR_ATTR(fan5_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 22),
+};
+
+static struct sensor_device_attribute sda_fan_alarm[] = {
+	SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6),
+	SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7),
+	SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11),
+	SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21),
+	SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22),
+};
+
+/* read/write PWMs */
+static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
+				char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct w83791d_data *data = w83791d_update_device(dev);
+	return sprintf(buf, "%u\n", data->pwm[nr]);
+}
+
+static ssize_t store_pwm(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83791d_data *data = i2c_get_clientdata(client);
+	int nr = sensor_attr->index;
+	unsigned long val;
+
+	if (strict_strtoul(buf, 10, &val))
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	data->pwm[nr] = SENSORS_LIMIT(val, 0, 255);
+	w83791d_write(client, W83791D_REG_PWM[nr], data->pwm[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static struct sensor_device_attribute sda_pwm[] = {
+	SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO,
+			show_pwm, store_pwm, 0),
+	SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO,
+			show_pwm, store_pwm, 1),
+	SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO,
+			show_pwm, store_pwm, 2),
+	SENSOR_ATTR(pwm4, S_IWUSR | S_IRUGO,
+			show_pwm, store_pwm, 3),
+	SENSOR_ATTR(pwm5, S_IWUSR | S_IRUGO,
+			show_pwm, store_pwm, 4),
+};
+
+static ssize_t show_pwmenable(struct device *dev, struct device_attribute *attr,
+				char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct w83791d_data *data = w83791d_update_device(dev);
+	return sprintf(buf, "%u\n", data->pwm_enable[nr] + 1);
+}
+
+static ssize_t store_pwmenable(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83791d_data *data = i2c_get_clientdata(client);
+	int nr = sensor_attr->index;
+	unsigned long val;
+	u8 reg_cfg_tmp;
+	u8 reg_idx = 0;
+	u8 val_shift = 0;
+	u8 keep_mask = 0;
+
+	int ret = strict_strtoul(buf, 10, &val);
+
+	if (ret || val < 1 || val > 3)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	data->pwm_enable[nr] = val - 1;
+	switch (nr) {
+	case 0:
+		reg_idx = 0;
+		val_shift = 2;
+		keep_mask = 0xf3;
+		break;
+	case 1:
+		reg_idx = 0;
+		val_shift = 4;
+		keep_mask = 0xcf;
+		break;
+	case 2:
+		reg_idx = 1;
+		val_shift = 2;
+		keep_mask = 0xf3;
+		break;
+	}
+
+	reg_cfg_tmp = w83791d_read(client, W83791D_REG_FAN_CFG[reg_idx]);
+	reg_cfg_tmp = (reg_cfg_tmp & keep_mask) |
+					data->pwm_enable[nr] << val_shift;
+
+	w83791d_write(client, W83791D_REG_FAN_CFG[reg_idx], reg_cfg_tmp);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+static struct sensor_device_attribute sda_pwmenable[] = {
+	SENSOR_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
+			show_pwmenable, store_pwmenable, 0),
+	SENSOR_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
+			show_pwmenable, store_pwmenable, 1),
+	SENSOR_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
+			show_pwmenable, store_pwmenable, 2),
+};
+
+/* For Smart Fan I / Thermal Cruise */
+static ssize_t show_temp_target(struct device *dev,
+			struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	struct w83791d_data *data = w83791d_update_device(dev);
+	int nr = sensor_attr->index;
+	return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp_target[nr]));
+}
+
+static ssize_t store_temp_target(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83791d_data *data = i2c_get_clientdata(client);
+	int nr = sensor_attr->index;
+	unsigned long val;
+	u8 target_mask;
+
+	if (strict_strtoul(buf, 10, &val))
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	data->temp_target[nr] = TARGET_TEMP_TO_REG(val);
+	target_mask = w83791d_read(client,
+				W83791D_REG_TEMP_TARGET[nr]) & 0x80;
+	w83791d_write(client, W83791D_REG_TEMP_TARGET[nr],
+				data->temp_target[nr] | target_mask);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static struct sensor_device_attribute sda_temp_target[] = {
+	SENSOR_ATTR(temp1_target, S_IWUSR | S_IRUGO,
+			show_temp_target, store_temp_target, 0),
+	SENSOR_ATTR(temp2_target, S_IWUSR | S_IRUGO,
+			show_temp_target, store_temp_target, 1),
+	SENSOR_ATTR(temp3_target, S_IWUSR | S_IRUGO,
+			show_temp_target, store_temp_target, 2),
+};
+
+static ssize_t show_temp_tolerance(struct device *dev,
+			struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	struct w83791d_data *data = w83791d_update_device(dev);
+	int nr = sensor_attr->index;
+	return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp_tolerance[nr]));
+}
+
+static ssize_t store_temp_tolerance(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83791d_data *data = i2c_get_clientdata(client);
+	int nr = sensor_attr->index;
+	unsigned long val;
+	u8 target_mask;
+	u8 reg_idx = 0;
+	u8 val_shift = 0;
+	u8 keep_mask = 0;
+
+	if (strict_strtoul(buf, 10, &val))
+		return -EINVAL;
+
+	switch (nr) {
+	case 0:
+		reg_idx = 0;
+		val_shift = 0;
+		keep_mask = 0xf0;
+		break;
+	case 1:
+		reg_idx = 0;
+		val_shift = 4;
+		keep_mask = 0x0f;
+		break;
+	case 2:
+		reg_idx = 1;
+		val_shift = 0;
+		keep_mask = 0xf0;
+		break;
+	}
+
+	mutex_lock(&data->update_lock);
+	data->temp_tolerance[nr] = TOL_TEMP_TO_REG(val);
+	target_mask = w83791d_read(client,
+			W83791D_REG_TEMP_TOL[reg_idx]) & keep_mask;
+	w83791d_write(client, W83791D_REG_TEMP_TOL[reg_idx],
+			(data->temp_tolerance[nr] << val_shift) | target_mask);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static struct sensor_device_attribute sda_temp_tolerance[] = {
+	SENSOR_ATTR(temp1_tolerance, S_IWUSR | S_IRUGO,
+			show_temp_tolerance, store_temp_tolerance, 0),
+	SENSOR_ATTR(temp2_tolerance, S_IWUSR | S_IRUGO,
+			show_temp_tolerance, store_temp_tolerance, 1),
+	SENSOR_ATTR(temp3_tolerance, S_IWUSR | S_IRUGO,
+			show_temp_tolerance, store_temp_tolerance, 2),
+};
+
+/* read/write the temperature1, includes measured value and limits */
+static ssize_t show_temp1(struct device *dev, struct device_attribute *devattr,
+				char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct w83791d_data *data = w83791d_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[attr->index]));
+}
+
+static ssize_t store_temp1(struct device *dev, struct device_attribute *devattr,
+				const char *buf, size_t count)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83791d_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+	int nr = attr->index;
+
+	mutex_lock(&data->update_lock);
+	data->temp1[nr] = TEMP1_TO_REG(val);
+	w83791d_write(client, W83791D_REG_TEMP1[nr], data->temp1[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+/* read/write temperature2-3, includes measured value and limits */
+static ssize_t show_temp23(struct device *dev, struct device_attribute *devattr,
+				char *buf)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct w83791d_data *data = w83791d_update_device(dev);
+	int nr = attr->nr;
+	int index = attr->index;
+	return sprintf(buf, "%d\n", TEMP23_FROM_REG(data->temp_add[nr][index]));
+}
+
+static ssize_t store_temp23(struct device *dev,
+				struct device_attribute *devattr,
+				const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83791d_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+	int nr = attr->nr;
+	int index = attr->index;
+
+	mutex_lock(&data->update_lock);
+	data->temp_add[nr][index] = TEMP23_TO_REG(val);
+	w83791d_write(client, W83791D_REG_TEMP_ADD[nr][index * 2],
+				data->temp_add[nr][index] >> 8);
+	w83791d_write(client, W83791D_REG_TEMP_ADD[nr][index * 2 + 1],
+				data->temp_add[nr][index] & 0x80);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static struct sensor_device_attribute_2 sda_temp_input[] = {
+	SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0),
+	SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0),
+	SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0),
+};
+
+static struct sensor_device_attribute_2 sda_temp_max[] = {
+	SENSOR_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
+			show_temp1, store_temp1, 0, 1),
+	SENSOR_ATTR_2(temp2_max, S_IRUGO | S_IWUSR,
+			show_temp23, store_temp23, 0, 1),
+	SENSOR_ATTR_2(temp3_max, S_IRUGO | S_IWUSR,
+			show_temp23, store_temp23, 1, 1),
+};
+
+static struct sensor_device_attribute_2 sda_temp_max_hyst[] = {
+	SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
+			show_temp1, store_temp1, 0, 2),
+	SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
+			show_temp23, store_temp23, 0, 2),
+	SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
+			show_temp23, store_temp23, 1, 2),
+};
+
+/* Note: The bitmask for the beep enable/disable is different than
+   the bitmask for the alarm. */
+static struct sensor_device_attribute sda_temp_beep[] = {
+	SENSOR_ATTR(temp1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 4),
+	SENSOR_ATTR(temp2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 5),
+	SENSOR_ATTR(temp3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 1),
+};
+
+static struct sensor_device_attribute sda_temp_alarm[] = {
+	SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4),
+	SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5),
+	SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
+};
+
+/* get reatime status of all sensors items: voltage, temp, fan */
+static ssize_t show_alarms_reg(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct w83791d_data *data = w83791d_update_device(dev);
+	return sprintf(buf, "%u\n", data->alarms);
+}
+
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
+
+/* Beep control */
+
+#define GLOBAL_BEEP_ENABLE_SHIFT	15
+#define GLOBAL_BEEP_ENABLE_MASK		(1 << GLOBAL_BEEP_ENABLE_SHIFT)
+
+static ssize_t show_beep_enable(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct w83791d_data *data = w83791d_update_device(dev);
+	return sprintf(buf, "%d\n", data->beep_enable);
+}
+
+static ssize_t show_beep_mask(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct w83791d_data *data = w83791d_update_device(dev);
+	return sprintf(buf, "%d\n", BEEP_MASK_FROM_REG(data->beep_mask));
+}
+
+
+static ssize_t store_beep_mask(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83791d_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+	int i;
+
+	mutex_lock(&data->update_lock);
+
+	/* The beep_enable state overrides any enabling request from
+	   the masks */
+	data->beep_mask = BEEP_MASK_TO_REG(val) & ~GLOBAL_BEEP_ENABLE_MASK;
+	data->beep_mask |= (data->beep_enable << GLOBAL_BEEP_ENABLE_SHIFT);
+
+	val = data->beep_mask;
+
+	for (i = 0; i < 3; i++) {
+		w83791d_write(client, W83791D_REG_BEEP_CTRL[i], (val & 0xff));
+		val >>= 8;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t store_beep_enable(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83791d_data *data = i2c_get_clientdata(client);
+	long val = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+
+	data->beep_enable = val ? 1 : 0;
+
+	/* Keep the full mask value in sync with the current enable */
+	data->beep_mask &= ~GLOBAL_BEEP_ENABLE_MASK;
+	data->beep_mask |= (data->beep_enable << GLOBAL_BEEP_ENABLE_SHIFT);
+
+	/* The global control is in the second beep control register
+	   so only need to update that register */
+	val = (data->beep_mask >> 8) & 0xff;
+
+	w83791d_write(client, W83791D_REG_BEEP_CTRL[1], val);
+
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static struct sensor_device_attribute sda_beep_ctrl[] = {
+	SENSOR_ATTR(beep_enable, S_IRUGO | S_IWUSR,
+			show_beep_enable, store_beep_enable, 0),
+	SENSOR_ATTR(beep_mask, S_IRUGO | S_IWUSR,
+			show_beep_mask, store_beep_mask, 1)
+};
+
+/* cpu voltage regulation information */
+static ssize_t show_vid_reg(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct w83791d_data *data = w83791d_update_device(dev);
+	return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
+}
+
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
+
+static ssize_t show_vrm_reg(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct w83791d_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%d\n", data->vrm);
+}
+
+static ssize_t store_vrm_reg(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	struct w83791d_data *data = dev_get_drvdata(dev);
+
+	/* No lock needed as vrm is internal to the driver
+	   (not read from a chip register) and so is not
+	   updated in w83791d_update_device() */
+	data->vrm = simple_strtoul(buf, NULL, 10);
+
+	return count;
+}
+
+static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
+
+#define IN_UNIT_ATTRS(X) \
+	&sda_in_input[X].dev_attr.attr, \
+	&sda_in_min[X].dev_attr.attr,   \
+	&sda_in_max[X].dev_attr.attr,   \
+	&sda_in_beep[X].dev_attr.attr,  \
+	&sda_in_alarm[X].dev_attr.attr
+
+#define FAN_UNIT_ATTRS(X) \
+	&sda_fan_input[X].dev_attr.attr,        \
+	&sda_fan_min[X].dev_attr.attr,          \
+	&sda_fan_div[X].dev_attr.attr,          \
+	&sda_fan_beep[X].dev_attr.attr,         \
+	&sda_fan_alarm[X].dev_attr.attr
+
+#define TEMP_UNIT_ATTRS(X) \
+	&sda_temp_input[X].dev_attr.attr,       \
+	&sda_temp_max[X].dev_attr.attr,         \
+	&sda_temp_max_hyst[X].dev_attr.attr,    \
+	&sda_temp_beep[X].dev_attr.attr,        \
+	&sda_temp_alarm[X].dev_attr.attr
+
+static struct attribute *w83791d_attributes[] = {
+	IN_UNIT_ATTRS(0),
+	IN_UNIT_ATTRS(1),
+	IN_UNIT_ATTRS(2),
+	IN_UNIT_ATTRS(3),
+	IN_UNIT_ATTRS(4),
+	IN_UNIT_ATTRS(5),
+	IN_UNIT_ATTRS(6),
+	IN_UNIT_ATTRS(7),
+	IN_UNIT_ATTRS(8),
+	IN_UNIT_ATTRS(9),
+	FAN_UNIT_ATTRS(0),
+	FAN_UNIT_ATTRS(1),
+	FAN_UNIT_ATTRS(2),
+	TEMP_UNIT_ATTRS(0),
+	TEMP_UNIT_ATTRS(1),
+	TEMP_UNIT_ATTRS(2),
+	&dev_attr_alarms.attr,
+	&sda_beep_ctrl[0].dev_attr.attr,
+	&sda_beep_ctrl[1].dev_attr.attr,
+	&dev_attr_cpu0_vid.attr,
+	&dev_attr_vrm.attr,
+	&sda_pwm[0].dev_attr.attr,
+	&sda_pwm[1].dev_attr.attr,
+	&sda_pwm[2].dev_attr.attr,
+	&sda_pwmenable[0].dev_attr.attr,
+	&sda_pwmenable[1].dev_attr.attr,
+	&sda_pwmenable[2].dev_attr.attr,
+	&sda_temp_target[0].dev_attr.attr,
+	&sda_temp_target[1].dev_attr.attr,
+	&sda_temp_target[2].dev_attr.attr,
+	&sda_temp_tolerance[0].dev_attr.attr,
+	&sda_temp_tolerance[1].dev_attr.attr,
+	&sda_temp_tolerance[2].dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group w83791d_group = {
+	.attrs = w83791d_attributes,
+};
+
+/* Separate group of attributes for fan/pwm 4-5. Their pins can also be
+   in use for GPIO in which case their sysfs-interface should not be made
+   available */
+static struct attribute *w83791d_attributes_fanpwm45[] = {
+	FAN_UNIT_ATTRS(3),
+	FAN_UNIT_ATTRS(4),
+	&sda_pwm[3].dev_attr.attr,
+	&sda_pwm[4].dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group w83791d_group_fanpwm45 = {
+	.attrs = w83791d_attributes_fanpwm45,
+};
+
+static int w83791d_detect_subclients(struct i2c_client *client)
+{
+	struct i2c_adapter *adapter = client->adapter;
+	struct w83791d_data *data = i2c_get_clientdata(client);
+	int address = client->addr;
+	int i, id, err;
+	u8 val;
+
+	id = i2c_adapter_id(adapter);
+	if (force_subclients[0] == id && force_subclients[1] == address) {
+		for (i = 2; i <= 3; i++) {
+			if (force_subclients[i] < 0x48 ||
+			    force_subclients[i] > 0x4f) {
+				dev_err(&client->dev,
+					"invalid subclient "
+					"address %d; must be 0x48-0x4f\n",
+					force_subclients[i]);
+				err = -ENODEV;
+				goto error_sc_0;
+			}
+		}
+		w83791d_write(client, W83791D_REG_I2C_SUBADDR,
+					(force_subclients[2] & 0x07) |
+					((force_subclients[3] & 0x07) << 4));
+	}
+
+	val = w83791d_read(client, W83791D_REG_I2C_SUBADDR);
+	if (!(val & 0x08)) {
+		data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7));
+	}
+	if (!(val & 0x80)) {
+		if ((data->lm75[0] != NULL) &&
+				((val & 0x7) == ((val >> 4) & 0x7))) {
+			dev_err(&client->dev,
+				"duplicate addresses 0x%x, "
+				"use force_subclient\n",
+				data->lm75[0]->addr);
+			err = -ENODEV;
+			goto error_sc_1;
+		}
+		data->lm75[1] = i2c_new_dummy(adapter,
+					      0x48 + ((val >> 4) & 0x7));
+	}
+
+	return 0;
+
+/* Undo inits in case of errors */
+
+error_sc_1:
+	if (data->lm75[0] != NULL)
+		i2c_unregister_device(data->lm75[0]);
+error_sc_0:
+	return err;
+}
+
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int w83791d_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+	int val1, val2;
+	unsigned short address = client->addr;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
+		return -ENODEV;
+	}
+
+	/* The w83791d may be stuck in some other bank than bank 0. This may
+	   make reading other information impossible. Specify a force=...
+	   parameter, and the Winbond will be reset to the right bank. */
+	if (kind < 0) {
+		if (w83791d_read(client, W83791D_REG_CONFIG) & 0x80) {
+			return -ENODEV;
+		}
+		val1 = w83791d_read(client, W83791D_REG_BANK);
+		val2 = w83791d_read(client, W83791D_REG_CHIPMAN);
+		/* Check for Winbond ID if in bank 0 */
+		if (!(val1 & 0x07)) {
+			/* yes it is Bank0 */
+			if (((!(val1 & 0x80)) && (val2 != 0xa3)) ||
+			    ((val1 & 0x80) && (val2 != 0x5c))) {
+				return -ENODEV;
+			}
+		}
+		/* If Winbond chip, address of chip and W83791D_REG_I2C_ADDR
+		   should match */
+		if (w83791d_read(client, W83791D_REG_I2C_ADDR) != address) {
+			return -ENODEV;
+		}
+	}
+
+	/* We either have a force parameter or we have reason to
+	   believe it is a Winbond chip. Either way, we want bank 0 and
+	   Vendor ID high byte */
+	val1 = w83791d_read(client, W83791D_REG_BANK) & 0x78;
+	w83791d_write(client, W83791D_REG_BANK, val1 | 0x80);
+
+	/* Verify it is a Winbond w83791d */
+	if (kind <= 0) {
+		/* get vendor ID */
+		val2 = w83791d_read(client, W83791D_REG_CHIPMAN);
+		if (val2 != 0x5c) {	/* the vendor is NOT Winbond */
+			return -ENODEV;
+		}
+		val1 = w83791d_read(client, W83791D_REG_WCHIPID);
+		if (val1 == 0x71) {
+			kind = w83791d;
+		} else {
+			if (kind == 0)
+				dev_warn(&adapter->dev,
+					"w83791d: Ignoring 'force' parameter "
+					"for unknown chip at adapter %d, "
+					"address 0x%02x\n",
+					i2c_adapter_id(adapter), address);
+			return -ENODEV;
+		}
+	}
+
+	strlcpy(info->type, "w83791d", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int w83791d_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct w83791d_data *data;
+	struct device *dev = &client->dev;
+	int i, err;
+	u8 has_fanpwm45;
+
+#ifdef DEBUG
+	int val1;
+	val1 = w83791d_read(client, W83791D_REG_DID_VID4);
+	dev_dbg(dev, "Device ID version: %d.%d (0x%02x)\n",
+			(val1 >> 5) & 0x07, (val1 >> 1) & 0x0f, val1);
+#endif
+
+	data = kzalloc(sizeof(struct w83791d_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto error0;
+	}
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
+
+	err = w83791d_detect_subclients(client);
+	if (err)
+		goto error1;
+
+	/* Initialize the chip */
+	w83791d_init_client(client);
+
+	/* If the fan_div is changed, make sure there is a rational
+	   fan_min in place */
+	for (i = 0; i < NUMBER_OF_FANIN; i++) {
+		data->fan_min[i] = w83791d_read(client, W83791D_REG_FAN_MIN[i]);
+	}
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&client->dev.kobj, &w83791d_group)))
+		goto error3;
+
+	/* Check if pins of fan/pwm 4-5 are in use as GPIO */
+	has_fanpwm45 = w83791d_read(client, W83791D_REG_GPIO) & 0x10;
+	if (has_fanpwm45) {
+		err = sysfs_create_group(&client->dev.kobj,
+					 &w83791d_group_fanpwm45);
+		if (err)
+			goto error4;
+	}
+
+	/* Everything is ready, now register the working device */
+	data->hwmon_dev = hwmon_device_register(dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto error5;
+	}
+
+	return 0;
+
+error5:
+	if (has_fanpwm45)
+		sysfs_remove_group(&client->dev.kobj, &w83791d_group_fanpwm45);
+error4:
+	sysfs_remove_group(&client->dev.kobj, &w83791d_group);
+error3:
+	if (data->lm75[0] != NULL)
+		i2c_unregister_device(data->lm75[0]);
+	if (data->lm75[1] != NULL)
+		i2c_unregister_device(data->lm75[1]);
+error1:
+	kfree(data);
+error0:
+	return err;
+}
+
+static int w83791d_remove(struct i2c_client *client)
+{
+	struct w83791d_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &w83791d_group);
+
+	if (data->lm75[0] != NULL)
+		i2c_unregister_device(data->lm75[0]);
+	if (data->lm75[1] != NULL)
+		i2c_unregister_device(data->lm75[1]);
+
+	kfree(data);
+	return 0;
+}
+
+static void w83791d_init_client(struct i2c_client *client)
+{
+	struct w83791d_data *data = i2c_get_clientdata(client);
+	u8 tmp;
+	u8 old_beep;
+
+	/* The difference between reset and init is that reset
+	   does a hard reset of the chip via index 0x40, bit 7,
+	   but init simply forces certain registers to have "sane"
+	   values. The hope is that the BIOS has done the right
+	   thing (which is why the default is reset=0, init=0),
+	   but if not, reset is the hard hammer and init
+	   is the soft mallet both of which are trying to whack
+	   things into place...
+	   NOTE: The data sheet makes a distinction between
+	   "power on defaults" and "reset by MR". As far as I can tell,
+	   the hard reset puts everything into a power-on state so I'm
+	   not sure what "reset by MR" means or how it can happen.
+	   */
+	if (reset || init) {
+		/* keep some BIOS settings when we... */
+		old_beep = w83791d_read(client, W83791D_REG_BEEP_CONFIG);
+
+		if (reset) {
+			/* ... reset the chip and ... */
+			w83791d_write(client, W83791D_REG_CONFIG, 0x80);
+		}
+
+		/* ... disable power-on abnormal beep */
+		w83791d_write(client, W83791D_REG_BEEP_CONFIG, old_beep | 0x80);
+
+		/* disable the global beep (not done by hard reset) */
+		tmp = w83791d_read(client, W83791D_REG_BEEP_CTRL[1]);
+		w83791d_write(client, W83791D_REG_BEEP_CTRL[1], tmp & 0xef);
+
+		if (init) {
+			/* Make sure monitoring is turned on for add-ons */
+			tmp = w83791d_read(client, W83791D_REG_TEMP2_CONFIG);
+			if (tmp & 1) {
+				w83791d_write(client, W83791D_REG_TEMP2_CONFIG,
+					tmp & 0xfe);
+			}
+
+			tmp = w83791d_read(client, W83791D_REG_TEMP3_CONFIG);
+			if (tmp & 1) {
+				w83791d_write(client, W83791D_REG_TEMP3_CONFIG,
+					tmp & 0xfe);
+			}
+
+			/* Start monitoring */
+			tmp = w83791d_read(client, W83791D_REG_CONFIG) & 0xf7;
+			w83791d_write(client, W83791D_REG_CONFIG, tmp | 0x01);
+		}
+	}
+
+	data->vrm = vid_which_vrm();
+}
+
+static struct w83791d_data *w83791d_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83791d_data *data = i2c_get_clientdata(client);
+	int i, j;
+	u8 reg_array_tmp[3];
+	u8 vbat_reg;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + (HZ * 3))
+			|| !data->valid) {
+		dev_dbg(dev, "Starting w83791d device update\n");
+
+		/* Update the voltages measured value and limits */
+		for (i = 0; i < NUMBER_OF_VIN; i++) {
+			data->in[i] = w83791d_read(client,
+						W83791D_REG_IN[i]);
+			data->in_max[i] = w83791d_read(client,
+						W83791D_REG_IN_MAX[i]);
+			data->in_min[i] = w83791d_read(client,
+						W83791D_REG_IN_MIN[i]);
+		}
+
+		/* Update the fan counts and limits */
+		for (i = 0; i < NUMBER_OF_FANIN; i++) {
+			/* Update the Fan measured value and limits */
+			data->fan[i] = w83791d_read(client,
+						W83791D_REG_FAN[i]);
+			data->fan_min[i] = w83791d_read(client,
+						W83791D_REG_FAN_MIN[i]);
+		}
+
+		/* Update the fan divisor */
+		for (i = 0; i < 3; i++) {
+			reg_array_tmp[i] = w83791d_read(client,
+						W83791D_REG_FAN_DIV[i]);
+		}
+		data->fan_div[0] = (reg_array_tmp[0] >> 4) & 0x03;
+		data->fan_div[1] = (reg_array_tmp[0] >> 6) & 0x03;
+		data->fan_div[2] = (reg_array_tmp[1] >> 6) & 0x03;
+		data->fan_div[3] = reg_array_tmp[2] & 0x07;
+		data->fan_div[4] = (reg_array_tmp[2] >> 4) & 0x07;
+
+		/* The fan divisor for fans 0-2 get bit 2 from
+		   bits 5-7 respectively of vbat register */
+		vbat_reg = w83791d_read(client, W83791D_REG_VBAT);
+		for (i = 0; i < 3; i++)
+			data->fan_div[i] |= (vbat_reg >> (3 + i)) & 0x04;
+
+		/* Update PWM duty cycle */
+		for (i = 0; i < NUMBER_OF_PWM; i++) {
+			data->pwm[i] =  w83791d_read(client,
+						W83791D_REG_PWM[i]);
+		}
+
+		/* Update PWM enable status */
+		for (i = 0; i < 2; i++) {
+			reg_array_tmp[i] = w83791d_read(client,
+						W83791D_REG_FAN_CFG[i]);
+		}
+		data->pwm_enable[0] = (reg_array_tmp[0] >> 2) & 0x03;
+		data->pwm_enable[1] = (reg_array_tmp[0] >> 4) & 0x03;
+		data->pwm_enable[2] = (reg_array_tmp[1] >> 2) & 0x03;
+
+		/* Update PWM target temperature */
+		for (i = 0; i < 3; i++) {
+			data->temp_target[i] = w83791d_read(client,
+				W83791D_REG_TEMP_TARGET[i]) & 0x7f;
+		}
+
+		/* Update PWM temperature tolerance */
+		for (i = 0; i < 2; i++) {
+			reg_array_tmp[i] = w83791d_read(client,
+					W83791D_REG_TEMP_TOL[i]);
+		}
+		data->temp_tolerance[0] = reg_array_tmp[0] & 0x0f;
+		data->temp_tolerance[1] = (reg_array_tmp[0] >> 4) & 0x0f;
+		data->temp_tolerance[2] = reg_array_tmp[1] & 0x0f;
+
+		/* Update the first temperature sensor */
+		for (i = 0; i < 3; i++) {
+			data->temp1[i] = w83791d_read(client,
+						W83791D_REG_TEMP1[i]);
+		}
+
+		/* Update the rest of the temperature sensors */
+		for (i = 0; i < 2; i++) {
+			for (j = 0; j < 3; j++) {
+				data->temp_add[i][j] =
+					(w83791d_read(client,
+					W83791D_REG_TEMP_ADD[i][j * 2]) << 8) |
+					w83791d_read(client,
+					W83791D_REG_TEMP_ADD[i][j * 2 + 1]);
+			}
+		}
+
+		/* Update the realtime status */
+		data->alarms =
+			w83791d_read(client, W83791D_REG_ALARM1) +
+			(w83791d_read(client, W83791D_REG_ALARM2) << 8) +
+			(w83791d_read(client, W83791D_REG_ALARM3) << 16);
+
+		/* Update the beep configuration information */
+		data->beep_mask =
+			w83791d_read(client, W83791D_REG_BEEP_CTRL[0]) +
+			(w83791d_read(client, W83791D_REG_BEEP_CTRL[1]) << 8) +
+			(w83791d_read(client, W83791D_REG_BEEP_CTRL[2]) << 16);
+
+		/* Extract global beep enable flag */
+		data->beep_enable =
+			(data->beep_mask >> GLOBAL_BEEP_ENABLE_SHIFT) & 0x01;
+
+		/* Update the cpu voltage information */
+		i = w83791d_read(client, W83791D_REG_VID_FANDIV);
+		data->vid = i & 0x0f;
+		data->vid |= (w83791d_read(client, W83791D_REG_DID_VID4) & 0x01)
+				<< 4;
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+#ifdef DEBUG
+	w83791d_print_debug(data, dev);
+#endif
+
+	return data;
+}
+
+#ifdef DEBUG
+static void w83791d_print_debug(struct w83791d_data *data, struct device *dev)
+{
+	int i = 0, j = 0;
+
+	dev_dbg(dev, "======Start of w83791d debug values======\n");
+	dev_dbg(dev, "%d set of Voltages: ===>\n", NUMBER_OF_VIN);
+	for (i = 0; i < NUMBER_OF_VIN; i++) {
+		dev_dbg(dev, "vin[%d] is:     0x%02x\n", i, data->in[i]);
+		dev_dbg(dev, "vin[%d] min is: 0x%02x\n", i, data->in_min[i]);
+		dev_dbg(dev, "vin[%d] max is: 0x%02x\n", i, data->in_max[i]);
+	}
+	dev_dbg(dev, "%d set of Fan Counts/Divisors: ===>\n", NUMBER_OF_FANIN);
+	for (i = 0; i < NUMBER_OF_FANIN; i++) {
+		dev_dbg(dev, "fan[%d] is:     0x%02x\n", i, data->fan[i]);
+		dev_dbg(dev, "fan[%d] min is: 0x%02x\n", i, data->fan_min[i]);
+		dev_dbg(dev, "fan_div[%d] is: 0x%02x\n", i, data->fan_div[i]);
+	}
+
+	/* temperature math is signed, but only print out the
+	   bits that matter */
+	dev_dbg(dev, "%d set of Temperatures: ===>\n", NUMBER_OF_TEMPIN);
+	for (i = 0; i < 3; i++) {
+		dev_dbg(dev, "temp1[%d] is: 0x%02x\n", i, (u8) data->temp1[i]);
+	}
+	for (i = 0; i < 2; i++) {
+		for (j = 0; j < 3; j++) {
+			dev_dbg(dev, "temp_add[%d][%d] is: 0x%04x\n", i, j,
+				(u16) data->temp_add[i][j]);
+		}
+	}
+
+	dev_dbg(dev, "Misc Information: ===>\n");
+	dev_dbg(dev, "alarm is:     0x%08x\n", data->alarms);
+	dev_dbg(dev, "beep_mask is: 0x%08x\n", data->beep_mask);
+	dev_dbg(dev, "beep_enable is: %d\n", data->beep_enable);
+	dev_dbg(dev, "vid is: 0x%02x\n", data->vid);
+	dev_dbg(dev, "vrm is: 0x%02x\n", data->vrm);
+	dev_dbg(dev, "=======End of w83791d debug values========\n");
+	dev_dbg(dev, "\n");
+}
+#endif
+
+static int __init sensors_w83791d_init(void)
+{
+	return i2c_add_driver(&w83791d_driver);
+}
+
+static void __exit sensors_w83791d_exit(void)
+{
+	i2c_del_driver(&w83791d_driver);
+}
+
+MODULE_AUTHOR("Charles Spirakis <bezaur@gmail.com>");
+MODULE_DESCRIPTION("W83791D driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_w83791d_init);
+module_exit(sensors_w83791d_exit);
diff --git a/drivers/hwmon/w83792d.c b/drivers/hwmon/w83792d.c
new file mode 100644
index 0000000..cf94c5b
--- /dev/null
+++ b/drivers/hwmon/w83792d.c
@@ -0,0 +1,1647 @@
+/*
+    w83792d.c - Part of lm_sensors, Linux kernel modules for hardware
+                monitoring
+    Copyright (C) 2004, 2005 Winbond Electronics Corp.
+                        Chunhao Huang <DZShen@Winbond.com.tw>,
+                        Rudolf Marek <r.marek@assembler.cz>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+    Note:
+    1. This driver is only for 2.6 kernel, 2.4 kernel need a different driver.
+    2. This driver is only for Winbond W83792D C version device, there
+       are also some motherboards with B version W83792D device. The
+       calculation method to in6-in7(measured value, limits) is a little
+       different between C and B version. C or B version can be identified
+       by CR[0x49h].
+*/
+
+/*
+    Supports following chips:
+
+    Chip	#vin	#fanin	#pwm	#temp	wchipid	vendid	i2c	ISA
+    w83792d	9	7	7	3	0x7a	0x5ca3	yes	no
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
+						I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_1(w83792d);
+I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: "
+			"{bus, clientaddr, subclientaddr1, subclientaddr2}");
+
+static int init;
+module_param(init, bool, 0);
+MODULE_PARM_DESC(init, "Set to one to force chip initialization");
+
+/* The W83792D registers */
+static const u8 W83792D_REG_IN[9] = {
+	0x20,	/* Vcore A in DataSheet */
+	0x21,	/* Vcore B in DataSheet */
+	0x22,	/* VIN0 in DataSheet */
+	0x23,	/* VIN1 in DataSheet */
+	0x24,	/* VIN2 in DataSheet */
+	0x25,	/* VIN3 in DataSheet */
+	0x26,	/* 5VCC in DataSheet */
+	0xB0,	/* 5VSB in DataSheet */
+	0xB1	/* VBAT in DataSheet */
+};
+#define W83792D_REG_LOW_BITS1 0x3E  /* Low Bits I in DataSheet */
+#define W83792D_REG_LOW_BITS2 0x3F  /* Low Bits II in DataSheet */
+static const u8 W83792D_REG_IN_MAX[9] = {
+	0x2B,	/* Vcore A High Limit in DataSheet */
+	0x2D,	/* Vcore B High Limit in DataSheet */
+	0x2F,	/* VIN0 High Limit in DataSheet */
+	0x31,	/* VIN1 High Limit in DataSheet */
+	0x33,	/* VIN2 High Limit in DataSheet */
+	0x35,	/* VIN3 High Limit in DataSheet */
+	0x37,	/* 5VCC High Limit in DataSheet */
+	0xB4,	/* 5VSB High Limit in DataSheet */
+	0xB6	/* VBAT High Limit in DataSheet */
+};
+static const u8 W83792D_REG_IN_MIN[9] = {
+	0x2C,	/* Vcore A Low Limit in DataSheet */
+	0x2E,	/* Vcore B Low Limit in DataSheet */
+	0x30,	/* VIN0 Low Limit in DataSheet */
+	0x32,	/* VIN1 Low Limit in DataSheet */
+	0x34,	/* VIN2 Low Limit in DataSheet */
+	0x36,	/* VIN3 Low Limit in DataSheet */
+	0x38,	/* 5VCC Low Limit in DataSheet */
+	0xB5,	/* 5VSB Low Limit in DataSheet */
+	0xB7	/* VBAT Low Limit in DataSheet */
+};
+static const u8 W83792D_REG_FAN[7] = {
+	0x28,	/* FAN 1 Count in DataSheet */
+	0x29,	/* FAN 2 Count in DataSheet */
+	0x2A,	/* FAN 3 Count in DataSheet */
+	0xB8,	/* FAN 4 Count in DataSheet */
+	0xB9,	/* FAN 5 Count in DataSheet */
+	0xBA,	/* FAN 6 Count in DataSheet */
+	0xBE	/* FAN 7 Count in DataSheet */
+};
+static const u8 W83792D_REG_FAN_MIN[7] = {
+	0x3B,	/* FAN 1 Count Low Limit in DataSheet */
+	0x3C,	/* FAN 2 Count Low Limit in DataSheet */
+	0x3D,	/* FAN 3 Count Low Limit in DataSheet */
+	0xBB,	/* FAN 4 Count Low Limit in DataSheet */
+	0xBC,	/* FAN 5 Count Low Limit in DataSheet */
+	0xBD,	/* FAN 6 Count Low Limit in DataSheet */
+	0xBF	/* FAN 7 Count Low Limit in DataSheet */
+};
+#define W83792D_REG_FAN_CFG 0x84	/* FAN Configuration in DataSheet */
+static const u8 W83792D_REG_FAN_DIV[4] = {
+	0x47,	/* contains FAN2 and FAN1 Divisor */
+	0x5B,	/* contains FAN4 and FAN3 Divisor */
+	0x5C,	/* contains FAN6 and FAN5 Divisor */
+	0x9E	/* contains FAN7 Divisor. */
+};
+static const u8 W83792D_REG_PWM[7] = {
+	0x81,	/* FAN 1 Duty Cycle, be used to control */
+	0x83,	/* FAN 2 Duty Cycle, be used to control */
+	0x94,	/* FAN 3 Duty Cycle, be used to control */
+	0xA3,	/* FAN 4 Duty Cycle, be used to control */
+	0xA4,	/* FAN 5 Duty Cycle, be used to control */
+	0xA5,	/* FAN 6 Duty Cycle, be used to control */
+	0xA6	/* FAN 7 Duty Cycle, be used to control */
+};
+#define W83792D_REG_BANK		0x4E
+#define W83792D_REG_TEMP2_CONFIG	0xC2
+#define W83792D_REG_TEMP3_CONFIG	0xCA
+
+static const u8 W83792D_REG_TEMP1[3] = {
+	0x27,	/* TEMP 1 in DataSheet */
+	0x39,	/* TEMP 1 Over in DataSheet */
+	0x3A,	/* TEMP 1 Hyst in DataSheet */
+};
+
+static const u8 W83792D_REG_TEMP_ADD[2][6] = {
+	{ 0xC0,		/* TEMP 2 in DataSheet */
+	  0xC1,		/* TEMP 2(0.5 deg) in DataSheet */
+	  0xC5,		/* TEMP 2 Over High part in DataSheet */
+	  0xC6,		/* TEMP 2 Over Low part in DataSheet */
+	  0xC3,		/* TEMP 2 Thyst High part in DataSheet */
+	  0xC4 },	/* TEMP 2 Thyst Low part in DataSheet */
+	{ 0xC8,		/* TEMP 3 in DataSheet */
+	  0xC9,		/* TEMP 3(0.5 deg) in DataSheet */
+	  0xCD,		/* TEMP 3 Over High part in DataSheet */
+	  0xCE,		/* TEMP 3 Over Low part in DataSheet */
+	  0xCB,		/* TEMP 3 Thyst High part in DataSheet */
+	  0xCC }	/* TEMP 3 Thyst Low part in DataSheet */
+};
+
+static const u8 W83792D_REG_THERMAL[3] = {
+	0x85,	/* SmartFanI: Fan1 target value */
+	0x86,	/* SmartFanI: Fan2 target value */
+	0x96	/* SmartFanI: Fan3 target value */
+};
+
+static const u8 W83792D_REG_TOLERANCE[3] = {
+	0x87,	/* (bit3-0)SmartFan Fan1 tolerance */
+	0x87,	/* (bit7-4)SmartFan Fan2 tolerance */
+	0x97	/* (bit3-0)SmartFan Fan3 tolerance */
+};
+
+static const u8 W83792D_REG_POINTS[3][4] = {
+	{ 0x85,		/* SmartFanII: Fan1 temp point 1 */
+	  0xE3,		/* SmartFanII: Fan1 temp point 2 */
+	  0xE4,		/* SmartFanII: Fan1 temp point 3 */
+	  0xE5 },	/* SmartFanII: Fan1 temp point 4 */
+	{ 0x86,		/* SmartFanII: Fan2 temp point 1 */
+	  0xE6,		/* SmartFanII: Fan2 temp point 2 */
+	  0xE7,		/* SmartFanII: Fan2 temp point 3 */
+	  0xE8 },	/* SmartFanII: Fan2 temp point 4 */
+	{ 0x96,		/* SmartFanII: Fan3 temp point 1 */
+	  0xE9,		/* SmartFanII: Fan3 temp point 2 */
+	  0xEA,		/* SmartFanII: Fan3 temp point 3 */
+	  0xEB }	/* SmartFanII: Fan3 temp point 4 */
+};
+
+static const u8 W83792D_REG_LEVELS[3][4] = {
+	{ 0x88,		/* (bit3-0) SmartFanII: Fan1 Non-Stop */
+	  0x88,		/* (bit7-4) SmartFanII: Fan1 Level 1 */
+	  0xE0,		/* (bit7-4) SmartFanII: Fan1 Level 2 */
+	  0xE0 },	/* (bit3-0) SmartFanII: Fan1 Level 3 */
+	{ 0x89,		/* (bit3-0) SmartFanII: Fan2 Non-Stop */
+	  0x89,		/* (bit7-4) SmartFanII: Fan2 Level 1 */
+	  0xE1,		/* (bit7-4) SmartFanII: Fan2 Level 2 */
+	  0xE1 },	/* (bit3-0) SmartFanII: Fan2 Level 3 */
+	{ 0x98,		/* (bit3-0) SmartFanII: Fan3 Non-Stop */
+	  0x98,		/* (bit7-4) SmartFanII: Fan3 Level 1 */
+	  0xE2,		/* (bit7-4) SmartFanII: Fan3 Level 2 */
+	  0xE2 }	/* (bit3-0) SmartFanII: Fan3 Level 3 */
+};
+
+#define W83792D_REG_GPIO_EN		0x1A
+#define W83792D_REG_CONFIG		0x40
+#define W83792D_REG_VID_FANDIV		0x47
+#define W83792D_REG_CHIPID		0x49
+#define W83792D_REG_WCHIPID		0x58
+#define W83792D_REG_CHIPMAN		0x4F
+#define W83792D_REG_PIN			0x4B
+#define W83792D_REG_I2C_SUBADDR		0x4A
+
+#define W83792D_REG_ALARM1 0xA9		/* realtime status register1 */
+#define W83792D_REG_ALARM2 0xAA		/* realtime status register2 */
+#define W83792D_REG_ALARM3 0xAB		/* realtime status register3 */
+#define W83792D_REG_CHASSIS 0x42	/* Bit 5: Case Open status bit */
+#define W83792D_REG_CHASSIS_CLR 0x44	/* Bit 7: Case Open CLR_CHS/Reset bit */
+
+/* control in0/in1 's limit modifiability */
+#define W83792D_REG_VID_IN_B		0x17
+
+#define W83792D_REG_VBAT		0x5D
+#define W83792D_REG_I2C_ADDR		0x48
+
+/* Conversions. Rounding and limit checking is only done on the TO_REG
+   variants. Note that you should be a bit careful with which arguments
+   these macros are called: arguments may be evaluated more than once.
+   Fixing this is just not worth it. */
+#define IN_FROM_REG(nr,val) (((nr)<=1)?(val*2): \
+				((((nr)==6)||((nr)==7))?(val*6):(val*4)))
+#define IN_TO_REG(nr,val) (((nr)<=1)?(val/2): \
+				((((nr)==6)||((nr)==7))?(val/6):(val/4)))
+
+static inline u8
+FAN_TO_REG(long rpm, int div)
+{
+	if (rpm == 0)
+		return 255;
+	rpm = SENSORS_LIMIT(rpm, 1, 1000000);
+	return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
+}
+
+#define FAN_FROM_REG(val,div)	((val) == 0   ? -1 : \
+				((val) == 255 ? 0 : \
+						1350000 / ((val) * (div))))
+
+/* for temp1 */
+#define TEMP1_TO_REG(val)	(SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
+					: (val)) / 1000, 0, 0xff))
+#define TEMP1_FROM_REG(val)	(((val) & 0x80 ? (val)-0x100 : (val)) * 1000)
+/* for temp2 and temp3, because they need addtional resolution */
+#define TEMP_ADD_FROM_REG(val1, val2) \
+	((((val1) & 0x80 ? (val1)-0x100 \
+		: (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0))
+#define TEMP_ADD_TO_REG_HIGH(val) \
+	(SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
+			: (val)) / 1000, 0, 0xff))
+#define TEMP_ADD_TO_REG_LOW(val)	((val%1000) ? 0x80 : 0x00)
+
+#define DIV_FROM_REG(val)		(1 << (val))
+
+static inline u8
+DIV_TO_REG(long val)
+{
+	int i;
+	val = SENSORS_LIMIT(val, 1, 128) >> 1;
+	for (i = 0; i < 7; i++) {
+		if (val == 0)
+			break;
+		val >>= 1;
+	}
+	return ((u8) i);
+}
+
+struct w83792d_data {
+	struct device *hwmon_dev;
+
+	struct mutex update_lock;
+	char valid;		/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+
+	/* array of 2 pointers to subclients */
+	struct i2c_client *lm75[2];
+
+	u8 in[9];		/* Register value */
+	u8 in_max[9];		/* Register value */
+	u8 in_min[9];		/* Register value */
+	u16 low_bits;		/* Additional resolution to voltage in6-0 */
+	u8 fan[7];		/* Register value */
+	u8 fan_min[7];		/* Register value */
+	u8 temp1[3];		/* current, over, thyst */
+	u8 temp_add[2][6];	/* Register value */
+	u8 fan_div[7];		/* Register encoding, shifted right */
+	u8 pwm[7];		/* We only consider the first 3 set of pwm,
+				   although 792 chip has 7 set of pwm. */
+	u8 pwmenable[3];
+	u32 alarms;		/* realtime status register encoding,combined */
+	u8 chassis;		/* Chassis status */
+	u8 chassis_clear;	/* CLR_CHS, clear chassis intrusion detection */
+	u8 thermal_cruise[3];	/* Smart FanI: Fan1,2,3 target value */
+	u8 tolerance[3];	/* Fan1,2,3 tolerance(Smart Fan I/II) */
+	u8 sf2_points[3][4];	/* Smart FanII: Fan1,2,3 temperature points */
+	u8 sf2_levels[3][4];	/* Smart FanII: Fan1,2,3 duty cycle levels */
+};
+
+static int w83792d_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id);
+static int w83792d_detect(struct i2c_client *client, int kind,
+			  struct i2c_board_info *info);
+static int w83792d_remove(struct i2c_client *client);
+static struct w83792d_data *w83792d_update_device(struct device *dev);
+
+#ifdef DEBUG
+static void w83792d_print_debug(struct w83792d_data *data, struct device *dev);
+#endif
+
+static void w83792d_init_client(struct i2c_client *client);
+
+static const struct i2c_device_id w83792d_id[] = {
+	{ "w83792d", w83792d },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, w83792d_id);
+
+static struct i2c_driver w83792d_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name = "w83792d",
+	},
+	.probe		= w83792d_probe,
+	.remove		= w83792d_remove,
+	.id_table	= w83792d_id,
+	.detect		= w83792d_detect,
+	.address_data	= &addr_data,
+};
+
+static inline long in_count_from_reg(int nr, struct w83792d_data *data)
+{
+	/* in7 and in8 do not have low bits, but the formula still works */
+	return ((data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03));
+}
+
+/* The SMBus locks itself. The Winbond W83792D chip has a bank register,
+   but the driver only accesses registers in bank 0, so we don't have
+   to switch banks and lock access between switches. */
+static inline int w83792d_read_value(struct i2c_client *client, u8 reg)
+{
+	return i2c_smbus_read_byte_data(client, reg);
+}
+
+static inline int
+w83792d_write_value(struct i2c_client *client, u8 reg, u8 value)
+{
+	return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+/* following are the sysfs callback functions */
+static ssize_t show_in(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct w83792d_data *data = w83792d_update_device(dev);
+	return sprintf(buf,"%ld\n", IN_FROM_REG(nr,(in_count_from_reg(nr, data))));
+}
+
+#define show_in_reg(reg) \
+static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
+			char *buf) \
+{ \
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
+	int nr = sensor_attr->index; \
+	struct w83792d_data *data = w83792d_update_device(dev); \
+	return sprintf(buf,"%ld\n", (long)(IN_FROM_REG(nr, (data->reg[nr])*4))); \
+}
+
+show_in_reg(in_min);
+show_in_reg(in_max);
+
+#define store_in_reg(REG, reg) \
+static ssize_t store_in_##reg (struct device *dev, \
+				struct device_attribute *attr, \
+				const char *buf, size_t count) \
+{ \
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
+	int nr = sensor_attr->index; \
+	struct i2c_client *client = to_i2c_client(dev); \
+	struct w83792d_data *data = i2c_get_clientdata(client); \
+	u32 val; \
+	 \
+	val = simple_strtoul(buf, NULL, 10); \
+	mutex_lock(&data->update_lock); \
+	data->in_##reg[nr] = SENSORS_LIMIT(IN_TO_REG(nr, val)/4, 0, 255); \
+	w83792d_write_value(client, W83792D_REG_IN_##REG[nr], data->in_##reg[nr]); \
+	mutex_unlock(&data->update_lock); \
+	 \
+	return count; \
+}
+store_in_reg(MIN, min);
+store_in_reg(MAX, max);
+
+#define show_fan_reg(reg) \
+static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \
+			char *buf) \
+{ \
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
+	int nr = sensor_attr->index - 1; \
+	struct w83792d_data *data = w83792d_update_device(dev); \
+	return sprintf(buf,"%d\n", \
+		FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
+}
+
+show_fan_reg(fan);
+show_fan_reg(fan_min);
+
+static ssize_t
+store_fan_min(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index - 1;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83792d_data *data = i2c_get_clientdata(client);
+	u32 val;
+
+	val = simple_strtoul(buf, NULL, 10);
+	mutex_lock(&data->update_lock);
+	data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
+	w83792d_write_value(client, W83792D_REG_FAN_MIN[nr],
+				data->fan_min[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t
+show_fan_div(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct w83792d_data *data = w83792d_update_device(dev);
+	return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1]));
+}
+
+/* Note: we save and restore the fan minimum here, because its value is
+   determined in part by the fan divisor.  This follows the principle of
+   least surprise; the user doesn't expect the fan minimum to change just
+   because the divisor changed. */
+static ssize_t
+store_fan_div(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index - 1;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83792d_data *data = i2c_get_clientdata(client);
+	unsigned long min;
+	/*u8 reg;*/
+	u8 fan_div_reg = 0;
+	u8 tmp_fan_div;
+
+	/* Save fan_min */
+	mutex_lock(&data->update_lock);
+	min = FAN_FROM_REG(data->fan_min[nr],
+			   DIV_FROM_REG(data->fan_div[nr]));
+
+	data->fan_div[nr] = DIV_TO_REG(simple_strtoul(buf, NULL, 10));
+
+	fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]);
+	fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8;
+	tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70)
+					: ((data->fan_div[nr]) & 0x07);
+	w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1],
+					fan_div_reg | tmp_fan_div);
+
+	/* Restore fan_min */
+	data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
+	w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/* read/write the temperature1, includes measured value and limits */
+
+static ssize_t show_temp1(struct device *dev, struct device_attribute *attr,
+				char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct w83792d_data *data = w83792d_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr]));
+}
+
+static ssize_t store_temp1(struct device *dev, struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83792d_data *data = i2c_get_clientdata(client);
+	s32 val;
+
+	val = simple_strtol(buf, NULL, 10);
+	mutex_lock(&data->update_lock);
+	data->temp1[nr] = TEMP1_TO_REG(val);
+	w83792d_write_value(client, W83792D_REG_TEMP1[nr],
+		data->temp1[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/* read/write the temperature2-3, includes measured value and limits */
+
+static ssize_t show_temp23(struct device *dev, struct device_attribute *attr,
+				char *buf)
+{
+	struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	struct w83792d_data *data = w83792d_update_device(dev);
+	return sprintf(buf,"%ld\n",
+		(long)TEMP_ADD_FROM_REG(data->temp_add[nr][index],
+			data->temp_add[nr][index+1]));
+}
+
+static ssize_t store_temp23(struct device *dev, struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83792d_data *data = i2c_get_clientdata(client);
+	s32 val;
+
+	val = simple_strtol(buf, NULL, 10);
+	mutex_lock(&data->update_lock);
+	data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val);
+	data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val);
+	w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index],
+		data->temp_add[nr][index]);
+	w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1],
+		data->temp_add[nr][index+1]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/* get reatime status of all sensors items: voltage, temp, fan */
+static ssize_t
+show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83792d_data *data = w83792d_update_device(dev);
+	return sprintf(buf, "%d\n", data->alarms);
+}
+
+static ssize_t show_alarm(struct device *dev,
+			  struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct w83792d_data *data = w83792d_update_device(dev);
+	return sprintf(buf, "%d\n", (data->alarms >> nr) & 1);
+}
+
+static ssize_t
+show_pwm(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct w83792d_data *data = w83792d_update_device(dev);
+	return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4);
+}
+
+static ssize_t
+show_pwmenable(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index - 1;
+	struct w83792d_data *data = w83792d_update_device(dev);
+	long pwm_enable_tmp = 1;
+
+	switch (data->pwmenable[nr]) {
+	case 0:
+		pwm_enable_tmp = 1; /* manual mode */
+		break;
+	case 1:
+		pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */
+		break;
+	case 2:
+		pwm_enable_tmp = 2; /* Smart Fan II */
+		break;
+	}
+
+	return sprintf(buf, "%ld\n", pwm_enable_tmp);
+}
+
+static ssize_t
+store_pwm(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83792d_data *data = i2c_get_clientdata(client);
+	u8 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255) >> 4;
+
+	mutex_lock(&data->update_lock);
+	val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0;
+	data->pwm[nr] = val;
+	w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t
+store_pwmenable(struct device *dev, struct device_attribute *attr,
+			const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index - 1;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83792d_data *data = i2c_get_clientdata(client);
+	u32 val;
+	u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp;
+
+	val = simple_strtoul(buf, NULL, 10);
+	if (val < 1 || val > 3)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	switch (val) {
+	case 1:
+		data->pwmenable[nr] = 0; /* manual mode */
+		break;
+	case 2:
+		data->pwmenable[nr] = 2; /* Smart Fan II */
+		break;
+	case 3:
+		data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */
+		break;
+	}
+	cfg1_tmp = data->pwmenable[0];
+	cfg2_tmp = (data->pwmenable[1]) << 2;
+	cfg3_tmp = (data->pwmenable[2]) << 4;
+	cfg4_tmp = w83792d_read_value(client,W83792D_REG_FAN_CFG) & 0xc0;
+	fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp;
+	w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t
+show_pwm_mode(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct w83792d_data *data = w83792d_update_device(dev);
+	return sprintf(buf, "%d\n", data->pwm[nr] >> 7);
+}
+
+static ssize_t
+store_pwm_mode(struct device *dev, struct device_attribute *attr,
+			const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83792d_data *data = i2c_get_clientdata(client);
+	u32 val;
+
+	val = simple_strtoul(buf, NULL, 10);
+	if (val != 0 && val != 1)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]);
+	if (val) {			/* PWM mode */
+		data->pwm[nr] |= 0x80;
+	} else {			/* DC mode */
+		data->pwm[nr] &= 0x7f;
+	}
+	w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t
+show_regs_chassis(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	struct w83792d_data *data = w83792d_update_device(dev);
+	return sprintf(buf, "%d\n", data->chassis);
+}
+
+static ssize_t
+show_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83792d_data *data = w83792d_update_device(dev);
+	return sprintf(buf, "%d\n", data->chassis_clear);
+}
+
+static ssize_t
+store_chassis_clear(struct device *dev, struct device_attribute *attr,
+			const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83792d_data *data = i2c_get_clientdata(client);
+	u32 val;
+	u8 temp1 = 0, temp2 = 0;
+
+	val = simple_strtoul(buf, NULL, 10);
+	mutex_lock(&data->update_lock);
+	data->chassis_clear = SENSORS_LIMIT(val, 0 ,1);
+	temp1 = ((data->chassis_clear) << 7) & 0x80;
+	temp2 = w83792d_read_value(client,
+		W83792D_REG_CHASSIS_CLR) & 0x7f;
+	w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/* For Smart Fan I / Thermal Cruise */
+static ssize_t
+show_thermal_cruise(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct w83792d_data *data = w83792d_update_device(dev);
+	return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]);
+}
+
+static ssize_t
+store_thermal_cruise(struct device *dev, struct device_attribute *attr,
+			const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index - 1;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83792d_data *data = i2c_get_clientdata(client);
+	u32 val;
+	u8 target_tmp=0, target_mask=0;
+
+	val = simple_strtoul(buf, NULL, 10);
+	target_tmp = val;
+	target_tmp = target_tmp & 0x7f;
+	mutex_lock(&data->update_lock);
+	target_mask = w83792d_read_value(client, W83792D_REG_THERMAL[nr]) & 0x80;
+	data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255);
+	w83792d_write_value(client, W83792D_REG_THERMAL[nr],
+		(data->thermal_cruise[nr]) | target_mask);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/* For Smart Fan I/Thermal Cruise and Smart Fan II */
+static ssize_t
+show_tolerance(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index;
+	struct w83792d_data *data = w83792d_update_device(dev);
+	return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]);
+}
+
+static ssize_t
+store_tolerance(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+	int nr = sensor_attr->index - 1;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83792d_data *data = i2c_get_clientdata(client);
+	u32 val;
+	u8 tol_tmp, tol_mask;
+
+	val = simple_strtoul(buf, NULL, 10);
+	mutex_lock(&data->update_lock);
+	tol_mask = w83792d_read_value(client,
+		W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
+	tol_tmp = SENSORS_LIMIT(val, 0, 15);
+	tol_tmp &= 0x0f;
+	data->tolerance[nr] = tol_tmp;
+	if (nr == 1) {
+		tol_tmp <<= 4;
+	}
+	w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
+		tol_mask | tol_tmp);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/* For Smart Fan II */
+static ssize_t
+show_sf2_point(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	struct w83792d_data *data = w83792d_update_device(dev);
+	return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]);
+}
+
+static ssize_t
+store_sf2_point(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr - 1;
+	int index = sensor_attr->index - 1;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83792d_data *data = i2c_get_clientdata(client);
+	u32 val;
+	u8 mask_tmp = 0;
+
+	val = simple_strtoul(buf, NULL, 10);
+	mutex_lock(&data->update_lock);
+	data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127);
+	mask_tmp = w83792d_read_value(client,
+					W83792D_REG_POINTS[index][nr]) & 0x80;
+	w83792d_write_value(client, W83792D_REG_POINTS[index][nr],
+		mask_tmp|data->sf2_points[index][nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t
+show_sf2_level(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	struct w83792d_data *data = w83792d_update_device(dev);
+	return sprintf(buf, "%d\n",
+			(((data->sf2_levels[index-1][nr]) * 100) / 15));
+}
+
+static ssize_t
+store_sf2_level(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index - 1;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83792d_data *data = i2c_get_clientdata(client);
+	u32 val;
+	u8 mask_tmp=0, level_tmp=0;
+
+	val = simple_strtoul(buf, NULL, 10);
+	mutex_lock(&data->update_lock);
+	data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15);
+	mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
+		& ((nr==3) ? 0xf0 : 0x0f);
+	if (nr==3) {
+		level_tmp = data->sf2_levels[index][nr];
+	} else {
+		level_tmp = data->sf2_levels[index][nr] << 4;
+	}
+	w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], level_tmp | mask_tmp);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+
+static int
+w83792d_detect_subclients(struct i2c_client *new_client)
+{
+	int i, id, err;
+	int address = new_client->addr;
+	u8 val;
+	struct i2c_adapter *adapter = new_client->adapter;
+	struct w83792d_data *data = i2c_get_clientdata(new_client);
+
+	id = i2c_adapter_id(adapter);
+	if (force_subclients[0] == id && force_subclients[1] == address) {
+		for (i = 2; i <= 3; i++) {
+			if (force_subclients[i] < 0x48 ||
+			    force_subclients[i] > 0x4f) {
+				dev_err(&new_client->dev, "invalid subclient "
+					"address %d; must be 0x48-0x4f\n",
+					force_subclients[i]);
+				err = -ENODEV;
+				goto ERROR_SC_0;
+			}
+		}
+		w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
+					(force_subclients[2] & 0x07) |
+					((force_subclients[3] & 0x07) << 4));
+	}
+
+	val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
+	if (!(val & 0x08)) {
+		data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7));
+	}
+	if (!(val & 0x80)) {
+		if ((data->lm75[0] != NULL) &&
+			((val & 0x7) == ((val >> 4) & 0x7))) {
+			dev_err(&new_client->dev, "duplicate addresses 0x%x, "
+				"use force_subclient\n", data->lm75[0]->addr);
+			err = -ENODEV;
+			goto ERROR_SC_1;
+		}
+		data->lm75[1] = i2c_new_dummy(adapter,
+					      0x48 + ((val >> 4) & 0x7));
+	}
+
+	return 0;
+
+/* Undo inits in case of errors */
+
+ERROR_SC_1:
+	if (data->lm75[0] != NULL)
+		i2c_unregister_device(data->lm75[0]);
+ERROR_SC_0:
+	return err;
+}
+
+static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
+static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
+static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
+static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
+static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
+static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
+			show_in_min, store_in_min, 0);
+static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
+			show_in_min, store_in_min, 1);
+static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
+			show_in_min, store_in_min, 2);
+static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
+			show_in_min, store_in_min, 3);
+static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
+			show_in_min, store_in_min, 4);
+static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
+			show_in_min, store_in_min, 5);
+static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
+			show_in_min, store_in_min, 6);
+static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
+			show_in_min, store_in_min, 7);
+static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
+			show_in_min, store_in_min, 8);
+static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
+			show_in_max, store_in_max, 0);
+static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
+			show_in_max, store_in_max, 1);
+static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
+			show_in_max, store_in_max, 2);
+static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
+			show_in_max, store_in_max, 3);
+static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
+			show_in_max, store_in_max, 4);
+static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
+			show_in_max, store_in_max, 5);
+static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
+			show_in_max, store_in_max, 6);
+static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
+			show_in_max, store_in_max, 7);
+static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
+			show_in_max, store_in_max, 8);
+static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0);
+static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0);
+static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0);
+static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
+			show_temp1, store_temp1, 0, 1);
+static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23,
+			store_temp23, 0, 2);
+static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23,
+			store_temp23, 1, 2);
+static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
+			show_temp1, store_temp1, 0, 2);
+static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
+			show_temp23, store_temp23, 0, 4);
+static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
+			show_temp23, store_temp23, 1, 4);
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10);
+static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11);
+static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12);
+static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15);
+static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19);
+static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20);
+static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21);
+static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22);
+static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23);
+static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL);
+static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR,
+			show_chassis_clear, store_chassis_clear);
+static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
+static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
+static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
+static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
+			show_pwmenable, store_pwmenable, 1);
+static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
+			show_pwmenable, store_pwmenable, 2);
+static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
+			show_pwmenable, store_pwmenable, 3);
+static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO,
+			show_pwm_mode, store_pwm_mode, 0);
+static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO,
+			show_pwm_mode, store_pwm_mode, 1);
+static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
+			show_pwm_mode, store_pwm_mode, 2);
+static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
+			show_tolerance, store_tolerance, 1);
+static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
+			show_tolerance, store_tolerance, 2);
+static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO,
+			show_tolerance, store_tolerance, 3);
+static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO,
+			show_thermal_cruise, store_thermal_cruise, 1);
+static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO,
+			show_thermal_cruise, store_thermal_cruise, 2);
+static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO,
+			show_thermal_cruise, store_thermal_cruise, 3);
+static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR,
+			show_sf2_point, store_sf2_point, 1, 1);
+static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR,
+			show_sf2_point, store_sf2_point, 2, 1);
+static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR,
+			show_sf2_point, store_sf2_point, 3, 1);
+static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR,
+			show_sf2_point, store_sf2_point, 4, 1);
+static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR,
+			show_sf2_point, store_sf2_point, 1, 2);
+static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR,
+			show_sf2_point, store_sf2_point, 2, 2);
+static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR,
+			show_sf2_point, store_sf2_point, 3, 2);
+static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR,
+			show_sf2_point, store_sf2_point, 4, 2);
+static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR,
+			show_sf2_point, store_sf2_point, 1, 3);
+static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR,
+			show_sf2_point, store_sf2_point, 2, 3);
+static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR,
+			show_sf2_point, store_sf2_point, 3, 3);
+static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR,
+			show_sf2_point, store_sf2_point, 4, 3);
+static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR,
+			show_sf2_level, store_sf2_level, 1, 1);
+static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR,
+			show_sf2_level, store_sf2_level, 2, 1);
+static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR,
+			show_sf2_level, store_sf2_level, 3, 1);
+static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR,
+			show_sf2_level, store_sf2_level, 1, 2);
+static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR,
+			show_sf2_level, store_sf2_level, 2, 2);
+static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR,
+			show_sf2_level, store_sf2_level, 3, 2);
+static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR,
+			show_sf2_level, store_sf2_level, 1, 3);
+static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR,
+			show_sf2_level, store_sf2_level, 2, 3);
+static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR,
+			show_sf2_level, store_sf2_level, 3, 3);
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3);
+static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4);
+static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5);
+static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7);
+static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
+			show_fan_min, store_fan_min, 1);
+static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
+			show_fan_min, store_fan_min, 2);
+static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
+			show_fan_min, store_fan_min, 3);
+static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
+			show_fan_min, store_fan_min, 4);
+static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
+			show_fan_min, store_fan_min, 5);
+static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
+			show_fan_min, store_fan_min, 6);
+static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
+			show_fan_min, store_fan_min, 7);
+static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
+			show_fan_div, store_fan_div, 1);
+static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
+			show_fan_div, store_fan_div, 2);
+static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO,
+			show_fan_div, store_fan_div, 3);
+static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO,
+			show_fan_div, store_fan_div, 4);
+static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO,
+			show_fan_div, store_fan_div, 5);
+static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO,
+			show_fan_div, store_fan_div, 6);
+static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
+			show_fan_div, store_fan_div, 7);
+
+static struct attribute *w83792d_attributes_fan[4][5] = {
+	{
+		&sensor_dev_attr_fan4_input.dev_attr.attr,
+		&sensor_dev_attr_fan4_min.dev_attr.attr,
+		&sensor_dev_attr_fan4_div.dev_attr.attr,
+		&sensor_dev_attr_fan4_alarm.dev_attr.attr,
+		NULL
+	}, {
+		&sensor_dev_attr_fan5_input.dev_attr.attr,
+		&sensor_dev_attr_fan5_min.dev_attr.attr,
+		&sensor_dev_attr_fan5_div.dev_attr.attr,
+		&sensor_dev_attr_fan5_alarm.dev_attr.attr,
+		NULL
+	}, {
+		&sensor_dev_attr_fan6_input.dev_attr.attr,
+		&sensor_dev_attr_fan6_min.dev_attr.attr,
+		&sensor_dev_attr_fan6_div.dev_attr.attr,
+		&sensor_dev_attr_fan6_alarm.dev_attr.attr,
+		NULL
+	}, {
+		&sensor_dev_attr_fan7_input.dev_attr.attr,
+		&sensor_dev_attr_fan7_min.dev_attr.attr,
+		&sensor_dev_attr_fan7_div.dev_attr.attr,
+		&sensor_dev_attr_fan7_alarm.dev_attr.attr,
+		NULL
+	}
+};
+
+static const struct attribute_group w83792d_group_fan[4] = {
+	{ .attrs = w83792d_attributes_fan[0] },
+	{ .attrs = w83792d_attributes_fan[1] },
+	{ .attrs = w83792d_attributes_fan[2] },
+	{ .attrs = w83792d_attributes_fan[3] },
+};
+
+static struct attribute *w83792d_attributes[] = {
+	&sensor_dev_attr_in0_input.dev_attr.attr,
+	&sensor_dev_attr_in0_max.dev_attr.attr,
+	&sensor_dev_attr_in0_min.dev_attr.attr,
+	&sensor_dev_attr_in1_input.dev_attr.attr,
+	&sensor_dev_attr_in1_max.dev_attr.attr,
+	&sensor_dev_attr_in1_min.dev_attr.attr,
+	&sensor_dev_attr_in2_input.dev_attr.attr,
+	&sensor_dev_attr_in2_max.dev_attr.attr,
+	&sensor_dev_attr_in2_min.dev_attr.attr,
+	&sensor_dev_attr_in3_input.dev_attr.attr,
+	&sensor_dev_attr_in3_max.dev_attr.attr,
+	&sensor_dev_attr_in3_min.dev_attr.attr,
+	&sensor_dev_attr_in4_input.dev_attr.attr,
+	&sensor_dev_attr_in4_max.dev_attr.attr,
+	&sensor_dev_attr_in4_min.dev_attr.attr,
+	&sensor_dev_attr_in5_input.dev_attr.attr,
+	&sensor_dev_attr_in5_max.dev_attr.attr,
+	&sensor_dev_attr_in5_min.dev_attr.attr,
+	&sensor_dev_attr_in6_input.dev_attr.attr,
+	&sensor_dev_attr_in6_max.dev_attr.attr,
+	&sensor_dev_attr_in6_min.dev_attr.attr,
+	&sensor_dev_attr_in7_input.dev_attr.attr,
+	&sensor_dev_attr_in7_max.dev_attr.attr,
+	&sensor_dev_attr_in7_min.dev_attr.attr,
+	&sensor_dev_attr_in8_input.dev_attr.attr,
+	&sensor_dev_attr_in8_max.dev_attr.attr,
+	&sensor_dev_attr_in8_min.dev_attr.attr,
+	&sensor_dev_attr_in0_alarm.dev_attr.attr,
+	&sensor_dev_attr_in1_alarm.dev_attr.attr,
+	&sensor_dev_attr_in2_alarm.dev_attr.attr,
+	&sensor_dev_attr_in3_alarm.dev_attr.attr,
+	&sensor_dev_attr_in4_alarm.dev_attr.attr,
+	&sensor_dev_attr_in5_alarm.dev_attr.attr,
+	&sensor_dev_attr_in6_alarm.dev_attr.attr,
+	&sensor_dev_attr_in7_alarm.dev_attr.attr,
+	&sensor_dev_attr_in8_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_max.dev_attr.attr,
+	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_max.dev_attr.attr,
+	&sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp3_input.dev_attr.attr,
+	&sensor_dev_attr_temp3_max.dev_attr.attr,
+	&sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
+	&sensor_dev_attr_temp1_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp2_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp3_alarm.dev_attr.attr,
+	&sensor_dev_attr_pwm1.dev_attr.attr,
+	&sensor_dev_attr_pwm1_mode.dev_attr.attr,
+	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm2.dev_attr.attr,
+	&sensor_dev_attr_pwm2_mode.dev_attr.attr,
+	&sensor_dev_attr_pwm2_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm3.dev_attr.attr,
+	&sensor_dev_attr_pwm3_mode.dev_attr.attr,
+	&sensor_dev_attr_pwm3_enable.dev_attr.attr,
+	&dev_attr_alarms.attr,
+	&dev_attr_chassis.attr,
+	&dev_attr_chassis_clear.attr,
+	&sensor_dev_attr_tolerance1.dev_attr.attr,
+	&sensor_dev_attr_thermal_cruise1.dev_attr.attr,
+	&sensor_dev_attr_tolerance2.dev_attr.attr,
+	&sensor_dev_attr_thermal_cruise2.dev_attr.attr,
+	&sensor_dev_attr_tolerance3.dev_attr.attr,
+	&sensor_dev_attr_thermal_cruise3.dev_attr.attr,
+	&sensor_dev_attr_sf2_point1_fan1.dev_attr.attr,
+	&sensor_dev_attr_sf2_point2_fan1.dev_attr.attr,
+	&sensor_dev_attr_sf2_point3_fan1.dev_attr.attr,
+	&sensor_dev_attr_sf2_point4_fan1.dev_attr.attr,
+	&sensor_dev_attr_sf2_point1_fan2.dev_attr.attr,
+	&sensor_dev_attr_sf2_point2_fan2.dev_attr.attr,
+	&sensor_dev_attr_sf2_point3_fan2.dev_attr.attr,
+	&sensor_dev_attr_sf2_point4_fan2.dev_attr.attr,
+	&sensor_dev_attr_sf2_point1_fan3.dev_attr.attr,
+	&sensor_dev_attr_sf2_point2_fan3.dev_attr.attr,
+	&sensor_dev_attr_sf2_point3_fan3.dev_attr.attr,
+	&sensor_dev_attr_sf2_point4_fan3.dev_attr.attr,
+	&sensor_dev_attr_sf2_level1_fan1.dev_attr.attr,
+	&sensor_dev_attr_sf2_level2_fan1.dev_attr.attr,
+	&sensor_dev_attr_sf2_level3_fan1.dev_attr.attr,
+	&sensor_dev_attr_sf2_level1_fan2.dev_attr.attr,
+	&sensor_dev_attr_sf2_level2_fan2.dev_attr.attr,
+	&sensor_dev_attr_sf2_level3_fan2.dev_attr.attr,
+	&sensor_dev_attr_sf2_level1_fan3.dev_attr.attr,
+	&sensor_dev_attr_sf2_level2_fan3.dev_attr.attr,
+	&sensor_dev_attr_sf2_level3_fan3.dev_attr.attr,
+	&sensor_dev_attr_fan1_input.dev_attr.attr,
+	&sensor_dev_attr_fan1_min.dev_attr.attr,
+	&sensor_dev_attr_fan1_div.dev_attr.attr,
+	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan2_input.dev_attr.attr,
+	&sensor_dev_attr_fan2_min.dev_attr.attr,
+	&sensor_dev_attr_fan2_div.dev_attr.attr,
+	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan3_input.dev_attr.attr,
+	&sensor_dev_attr_fan3_min.dev_attr.attr,
+	&sensor_dev_attr_fan3_div.dev_attr.attr,
+	&sensor_dev_attr_fan3_alarm.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group w83792d_group = {
+	.attrs = w83792d_attributes,
+};
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int
+w83792d_detect(struct i2c_client *client, int kind, struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+	int val1, val2;
+	unsigned short address = client->addr;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
+		return -ENODEV;
+	}
+
+	/* The w83792d may be stuck in some other bank than bank 0. This may
+	   make reading other information impossible. Specify a force=... or
+	   force_*=... parameter, and the Winbond will be reset to the right
+	   bank. */
+	if (kind < 0) {
+		if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80) {
+			return -ENODEV;
+		}
+		val1 = w83792d_read_value(client, W83792D_REG_BANK);
+		val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
+		/* Check for Winbond ID if in bank 0 */
+		if (!(val1 & 0x07)) {  /* is Bank0 */
+			if (((!(val1 & 0x80)) && (val2 != 0xa3)) ||
+			     ((val1 & 0x80) && (val2 != 0x5c))) {
+				return -ENODEV;
+			}
+		}
+		/* If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
+		   should match */
+		if (w83792d_read_value(client,
+					W83792D_REG_I2C_ADDR) != address) {
+			return -ENODEV;
+		}
+	}
+
+	/* We have either had a force parameter, or we have already detected the
+	   Winbond. Put it now into bank 0 and Vendor ID High Byte */
+	w83792d_write_value(client,
+			    W83792D_REG_BANK,
+			    (w83792d_read_value(client,
+				W83792D_REG_BANK) & 0x78) | 0x80);
+
+	/* Determine the chip type. */
+	if (kind <= 0) {
+		/* get vendor ID */
+		val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
+		if (val2 != 0x5c) {  /* the vendor is NOT Winbond */
+			return -ENODEV;
+		}
+		val1 = w83792d_read_value(client, W83792D_REG_WCHIPID);
+		if (val1 == 0x7a) {
+			kind = w83792d;
+		} else {
+			if (kind == 0)
+				dev_warn(&adapter->dev,
+					"w83792d: Ignoring 'force' parameter for"
+					" unknown chip at adapter %d, address"
+					" 0x%02x\n", i2c_adapter_id(adapter),
+					address);
+			return -ENODEV;
+		}
+	}
+
+	strlcpy(info->type, "w83792d", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int
+w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id)
+{
+	struct w83792d_data *data;
+	struct device *dev = &client->dev;
+	int i, val1, err;
+
+	data = kzalloc(sizeof(struct w83792d_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto ERROR0;
+	}
+
+	i2c_set_clientdata(client, data);
+	data->valid = 0;
+	mutex_init(&data->update_lock);
+
+	err = w83792d_detect_subclients(client);
+	if (err)
+		goto ERROR1;
+
+	/* Initialize the chip */
+	w83792d_init_client(client);
+
+	/* A few vars need to be filled upon startup */
+	for (i = 0; i < 7; i++) {
+		data->fan_min[i] = w83792d_read_value(client,
+					W83792D_REG_FAN_MIN[i]);
+	}
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&dev->kobj, &w83792d_group)))
+		goto ERROR3;
+
+	/* Read GPIO enable register to check if pins for fan 4,5 are used as
+	   GPIO */
+	val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
+
+	if (!(val1 & 0x40))
+		if ((err = sysfs_create_group(&dev->kobj,
+					      &w83792d_group_fan[0])))
+			goto exit_remove_files;
+
+	if (!(val1 & 0x20))
+		if ((err = sysfs_create_group(&dev->kobj,
+					      &w83792d_group_fan[1])))
+			goto exit_remove_files;
+
+	val1 = w83792d_read_value(client, W83792D_REG_PIN);
+	if (val1 & 0x40)
+		if ((err = sysfs_create_group(&dev->kobj,
+					      &w83792d_group_fan[2])))
+			goto exit_remove_files;
+
+	if (val1 & 0x04)
+		if ((err = sysfs_create_group(&dev->kobj,
+					      &w83792d_group_fan[3])))
+			goto exit_remove_files;
+
+	data->hwmon_dev = hwmon_device_register(dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove_files;
+	}
+
+	return 0;
+
+exit_remove_files:
+	sysfs_remove_group(&dev->kobj, &w83792d_group);
+	for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
+		sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
+ERROR3:
+	if (data->lm75[0] != NULL)
+		i2c_unregister_device(data->lm75[0]);
+	if (data->lm75[1] != NULL)
+		i2c_unregister_device(data->lm75[1]);
+ERROR1:
+	kfree(data);
+ERROR0:
+	return err;
+}
+
+static int
+w83792d_remove(struct i2c_client *client)
+{
+	struct w83792d_data *data = i2c_get_clientdata(client);
+	int i;
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &w83792d_group);
+	for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
+		sysfs_remove_group(&client->dev.kobj,
+				   &w83792d_group_fan[i]);
+
+	if (data->lm75[0] != NULL)
+		i2c_unregister_device(data->lm75[0]);
+	if (data->lm75[1] != NULL)
+		i2c_unregister_device(data->lm75[1]);
+
+	kfree(data);
+	return 0;
+}
+
+static void
+w83792d_init_client(struct i2c_client *client)
+{
+	u8 temp2_cfg, temp3_cfg, vid_in_b;
+
+	if (init) {
+		w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
+	}
+	/* Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
+	   W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
+	     vin0/vin1 can be modified by user;
+	   W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
+	     vin0/vin1 auto-updated, can NOT be modified by user. */
+	vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
+	w83792d_write_value(client, W83792D_REG_VID_IN_B,
+			    vid_in_b & 0xbf);
+
+	temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
+	temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
+	w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
+				temp2_cfg & 0xe6);
+	w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
+				temp3_cfg & 0xe6);
+
+	/* Start monitoring */
+	w83792d_write_value(client, W83792D_REG_CONFIG,
+			    (w83792d_read_value(client,
+						W83792D_REG_CONFIG) & 0xf7)
+			    | 0x01);
+}
+
+static struct w83792d_data *w83792d_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83792d_data *data = i2c_get_clientdata(client);
+	int i, j;
+	u8 reg_array_tmp[4], reg_tmp;
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after
+	    (jiffies - data->last_updated, (unsigned long) (HZ * 3))
+	    || time_before(jiffies, data->last_updated) || !data->valid) {
+		dev_dbg(dev, "Starting device update\n");
+
+		/* Update the voltages measured value and limits */
+		for (i = 0; i < 9; i++) {
+			data->in[i] = w83792d_read_value(client,
+						W83792D_REG_IN[i]);
+			data->in_max[i] = w83792d_read_value(client,
+						W83792D_REG_IN_MAX[i]);
+			data->in_min[i] = w83792d_read_value(client,
+						W83792D_REG_IN_MIN[i]);
+		}
+		data->low_bits = w83792d_read_value(client,
+						W83792D_REG_LOW_BITS1) +
+				 (w83792d_read_value(client,
+						W83792D_REG_LOW_BITS2) << 8);
+		for (i = 0; i < 7; i++) {
+			/* Update the Fan measured value and limits */
+			data->fan[i] = w83792d_read_value(client,
+						W83792D_REG_FAN[i]);
+			data->fan_min[i] = w83792d_read_value(client,
+						W83792D_REG_FAN_MIN[i]);
+			/* Update the PWM/DC Value and PWM/DC flag */
+			data->pwm[i] = w83792d_read_value(client,
+						W83792D_REG_PWM[i]);
+		}
+
+		reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
+		data->pwmenable[0] = reg_tmp & 0x03;
+		data->pwmenable[1] = (reg_tmp>>2) & 0x03;
+		data->pwmenable[2] = (reg_tmp>>4) & 0x03;
+
+		for (i = 0; i < 3; i++) {
+			data->temp1[i] = w83792d_read_value(client,
+							W83792D_REG_TEMP1[i]);
+		}
+		for (i = 0; i < 2; i++) {
+			for (j = 0; j < 6; j++) {
+				data->temp_add[i][j] = w83792d_read_value(
+					client,W83792D_REG_TEMP_ADD[i][j]);
+			}
+		}
+
+		/* Update the Fan Divisor */
+		for (i = 0; i < 4; i++) {
+			reg_array_tmp[i] = w83792d_read_value(client,
+							W83792D_REG_FAN_DIV[i]);
+		}
+		data->fan_div[0] = reg_array_tmp[0] & 0x07;
+		data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
+		data->fan_div[2] = reg_array_tmp[1] & 0x07;
+		data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
+		data->fan_div[4] = reg_array_tmp[2] & 0x07;
+		data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
+		data->fan_div[6] = reg_array_tmp[3] & 0x07;
+
+		/* Update the realtime status */
+		data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
+			(w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
+			(w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
+
+		/* Update CaseOpen status and it's CLR_CHS. */
+		data->chassis = (w83792d_read_value(client,
+			W83792D_REG_CHASSIS) >> 5) & 0x01;
+		data->chassis_clear = (w83792d_read_value(client,
+			W83792D_REG_CHASSIS_CLR) >> 7) & 0x01;
+
+		/* Update Thermal Cruise/Smart Fan I target value */
+		for (i = 0; i < 3; i++) {
+			data->thermal_cruise[i] =
+				w83792d_read_value(client,
+				W83792D_REG_THERMAL[i]) & 0x7f;
+		}
+
+		/* Update Smart Fan I/II tolerance */
+		reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
+		data->tolerance[0] = reg_tmp & 0x0f;
+		data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
+		data->tolerance[2] = w83792d_read_value(client,
+					W83792D_REG_TOLERANCE[2]) & 0x0f;
+
+		/* Update Smart Fan II temperature points */
+		for (i = 0; i < 3; i++) {
+			for (j = 0; j < 4; j++) {
+				data->sf2_points[i][j] = w83792d_read_value(
+					client,W83792D_REG_POINTS[i][j]) & 0x7f;
+			}
+		}
+
+		/* Update Smart Fan II duty cycle levels */
+		for (i = 0; i < 3; i++) {
+			reg_tmp = w83792d_read_value(client,
+						W83792D_REG_LEVELS[i][0]);
+			data->sf2_levels[i][0] = reg_tmp & 0x0f;
+			data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
+			reg_tmp = w83792d_read_value(client,
+						W83792D_REG_LEVELS[i][2]);
+			data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
+			data->sf2_levels[i][3] = reg_tmp & 0x0f;
+		}
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+#ifdef DEBUG
+	w83792d_print_debug(data, dev);
+#endif
+
+	return data;
+}
+
+#ifdef DEBUG
+static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
+{
+	int i=0, j=0;
+	dev_dbg(dev, "==========The following is the debug message...========\n");
+	dev_dbg(dev, "9 set of Voltages: =====>\n");
+	for (i=0; i<9; i++) {
+		dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
+		dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
+		dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
+	}
+	dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff);
+	dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8);
+	dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
+	for (i=0; i<7; i++) {
+		dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
+		dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
+		dev_dbg(dev, "pwm[%d]     is: 0x%x\n", i, data->pwm[i]);
+	}
+	dev_dbg(dev, "3 set of Temperatures: =====>\n");
+	for (i=0; i<3; i++) {
+		dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
+	}
+
+	for (i=0; i<2; i++) {
+		for (j=0; j<6; j++) {
+			dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
+							data->temp_add[i][j]);
+		}
+	}
+
+	for (i=0; i<7; i++) {
+		dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
+	}
+	dev_dbg(dev, "==========End of the debug message...==================\n");
+	dev_dbg(dev, "\n");
+}
+#endif
+
+static int __init
+sensors_w83792d_init(void)
+{
+	return i2c_add_driver(&w83792d_driver);
+}
+
+static void __exit
+sensors_w83792d_exit(void)
+{
+	i2c_del_driver(&w83792d_driver);
+}
+
+MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>");
+MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_w83792d_init);
+module_exit(sensors_w83792d_exit);
+
diff --git a/drivers/hwmon/w83793.c b/drivers/hwmon/w83793.c
new file mode 100644
index 0000000..0a739f1
--- /dev/null
+++ b/drivers/hwmon/w83793.c
@@ -0,0 +1,1651 @@
+/*
+    w83793.c - Linux kernel driver for hardware monitoring
+    Copyright (C) 2006 Winbond Electronics Corp.
+                  Yuan Mu
+                  Rudolf Marek <r.marek@assembler.cz>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation - version 2.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+    02110-1301 USA.
+*/
+
+/*
+    Supports following chips:
+
+    Chip	#vin	#fanin	#pwm	#temp	wchipid	vendid	i2c	ISA
+    w83793	10	12	8	6	0x7b	0x5ca3	yes	no
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-vid.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
+						I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_1(w83793);
+I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: "
+		       "{bus, clientaddr, subclientaddr1, subclientaddr2}");
+
+static int reset;
+module_param(reset, bool, 0);
+MODULE_PARM_DESC(reset, "Set to 1 to reset chip, not recommended");
+
+/*
+   Address 0x00, 0x0d, 0x0e, 0x0f in all three banks are reserved
+   as ID, Bank Select registers
+*/
+#define W83793_REG_BANKSEL		0x00
+#define W83793_REG_VENDORID		0x0d
+#define W83793_REG_CHIPID		0x0e
+#define W83793_REG_DEVICEID		0x0f
+
+#define W83793_REG_CONFIG		0x40
+#define W83793_REG_MFC			0x58
+#define W83793_REG_FANIN_CTRL		0x5c
+#define W83793_REG_FANIN_SEL		0x5d
+#define W83793_REG_I2C_ADDR		0x0b
+#define W83793_REG_I2C_SUBADDR		0x0c
+#define W83793_REG_VID_INA		0x05
+#define W83793_REG_VID_INB		0x06
+#define W83793_REG_VID_LATCHA		0x07
+#define W83793_REG_VID_LATCHB		0x08
+#define W83793_REG_VID_CTRL		0x59
+
+static u16 W83793_REG_TEMP_MODE[2] = { 0x5e, 0x5f };
+
+#define TEMP_READ	0
+#define TEMP_CRIT	1
+#define TEMP_CRIT_HYST	2
+#define TEMP_WARN	3
+#define TEMP_WARN_HYST	4
+/* only crit and crit_hyst affect real-time alarm status
+   current crit crit_hyst warn warn_hyst */
+static u16 W83793_REG_TEMP[][5] = {
+	{0x1c, 0x78, 0x79, 0x7a, 0x7b},
+	{0x1d, 0x7c, 0x7d, 0x7e, 0x7f},
+	{0x1e, 0x80, 0x81, 0x82, 0x83},
+	{0x1f, 0x84, 0x85, 0x86, 0x87},
+	{0x20, 0x88, 0x89, 0x8a, 0x8b},
+	{0x21, 0x8c, 0x8d, 0x8e, 0x8f},
+};
+
+#define W83793_REG_TEMP_LOW_BITS	0x22
+
+#define W83793_REG_BEEP(index)		(0x53 + (index))
+#define W83793_REG_ALARM(index)		(0x4b + (index))
+
+#define W83793_REG_CLR_CHASSIS		0x4a	/* SMI MASK4 */
+#define W83793_REG_IRQ_CTRL		0x50
+#define W83793_REG_OVT_CTRL		0x51
+#define W83793_REG_OVT_BEEP		0x52
+
+#define IN_READ				0
+#define IN_MAX				1
+#define IN_LOW				2
+static const u16 W83793_REG_IN[][3] = {
+	/* Current, High, Low */
+	{0x10, 0x60, 0x61},	/* Vcore A	*/
+	{0x11, 0x62, 0x63},	/* Vcore B	*/
+	{0x12, 0x64, 0x65},	/* Vtt		*/
+	{0x14, 0x6a, 0x6b},	/* VSEN1	*/
+	{0x15, 0x6c, 0x6d},	/* VSEN2	*/
+	{0x16, 0x6e, 0x6f},	/* +3VSEN	*/
+	{0x17, 0x70, 0x71},	/* +12VSEN	*/
+	{0x18, 0x72, 0x73},	/* 5VDD		*/
+	{0x19, 0x74, 0x75},	/* 5VSB		*/
+	{0x1a, 0x76, 0x77},	/* VBAT		*/
+};
+
+/* Low Bits of Vcore A/B Vtt Read/High/Low */
+static const u16 W83793_REG_IN_LOW_BITS[] = { 0x1b, 0x68, 0x69 };
+static u8 scale_in[] = { 2, 2, 2, 16, 16, 16, 8, 24, 24, 16 };
+static u8 scale_in_add[] = { 0, 0, 0, 0, 0, 0, 0, 150, 150, 0 };
+
+#define W83793_REG_FAN(index)		(0x23 + 2 * (index))	/* High byte */
+#define W83793_REG_FAN_MIN(index)	(0x90 + 2 * (index))	/* High byte */
+
+#define W83793_REG_PWM_DEFAULT		0xb2
+#define W83793_REG_PWM_ENABLE		0x207
+#define W83793_REG_PWM_UPTIME		0xc3	/* Unit in 0.1 second */
+#define W83793_REG_PWM_DOWNTIME		0xc4	/* Unit in 0.1 second */
+#define W83793_REG_TEMP_CRITICAL	0xc5
+
+#define PWM_DUTY			0
+#define PWM_START			1
+#define PWM_NONSTOP			2
+#define PWM_STOP_TIME			3
+#define W83793_REG_PWM(index, nr)	(((nr) == 0 ? 0xb3 : \
+					 (nr) == 1 ? 0x220 : 0x218) + (index))
+
+/* bit field, fan1 is bit0, fan2 is bit1 ... */
+#define W83793_REG_TEMP_FAN_MAP(index)	(0x201 + (index))
+#define W83793_REG_TEMP_TOL(index)	(0x208 + (index))
+#define W83793_REG_TEMP_CRUISE(index)	(0x210 + (index))
+#define W83793_REG_PWM_STOP_TIME(index)	(0x228 + (index))
+#define W83793_REG_SF2_TEMP(index, nr)	(0x230 + ((index) << 4) + (nr))
+#define W83793_REG_SF2_PWM(index, nr)	(0x238 + ((index) << 4) + (nr))
+
+static inline unsigned long FAN_FROM_REG(u16 val)
+{
+	if ((val >= 0xfff) || (val == 0))
+		return	0;
+	return (1350000UL / val);
+}
+
+static inline u16 FAN_TO_REG(long rpm)
+{
+	if (rpm <= 0)
+		return 0x0fff;
+	return SENSORS_LIMIT((1350000 + (rpm >> 1)) / rpm, 1, 0xffe);
+}
+
+static inline unsigned long TIME_FROM_REG(u8 reg)
+{
+	return (reg * 100);
+}
+
+static inline u8 TIME_TO_REG(unsigned long val)
+{
+	return SENSORS_LIMIT((val + 50) / 100, 0, 0xff);
+}
+
+static inline long TEMP_FROM_REG(s8 reg)
+{
+	return (reg * 1000);
+}
+
+static inline s8 TEMP_TO_REG(long val, s8 min, s8 max)
+{
+	return SENSORS_LIMIT((val + (val < 0 ? -500 : 500)) / 1000, min, max);
+}
+
+struct w83793_data {
+	struct i2c_client *lm75[2];
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	char valid;			/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+	unsigned long last_nonvolatile;	/* In jiffies, last time we update the
+					   nonvolatile registers */
+
+	u8 bank;
+	u8 vrm;
+	u8 vid[2];
+	u8 in[10][3];		/* Register value, read/high/low */
+	u8 in_low_bits[3];	/* Additional resolution for VCore A/B Vtt */
+
+	u16 has_fan;		/* Only fan1- fan5 has own pins */
+	u16 fan[12];		/* Register value combine */
+	u16 fan_min[12];	/* Register value combine */
+
+	s8 temp[6][5];		/* current, crit, crit_hyst,warn, warn_hyst */
+	u8 temp_low_bits;	/* Additional resolution TD1-TD4 */
+	u8 temp_mode[2];	/* byte 0: Temp D1-D4 mode each has 2 bits
+				   byte 1: Temp R1,R2 mode, each has 1 bit */
+	u8 temp_critical;	/* If reached all fan will be at full speed */
+	u8 temp_fan_map[6];	/* Temp controls which pwm fan, bit field */
+
+	u8 has_pwm;
+	u8 has_temp;
+	u8 has_vid;
+	u8 pwm_enable;		/* Register value, each Temp has 1 bit */
+	u8 pwm_uptime;		/* Register value */
+	u8 pwm_downtime;	/* Register value */
+	u8 pwm_default;		/* All fan default pwm, next poweron valid */
+	u8 pwm[8][3];		/* Register value */
+	u8 pwm_stop_time[8];
+	u8 temp_cruise[6];
+
+	u8 alarms[5];		/* realtime status registers */
+	u8 beeps[5];
+	u8 beep_enable;
+	u8 tolerance[3];	/* Temp tolerance(Smart Fan I/II) */
+	u8 sf2_pwm[6][7];	/* Smart FanII: Fan duty cycle */
+	u8 sf2_temp[6][7];	/* Smart FanII: Temp level point */
+};
+
+static u8 w83793_read_value(struct i2c_client *client, u16 reg);
+static int w83793_write_value(struct i2c_client *client, u16 reg, u8 value);
+static int w83793_probe(struct i2c_client *client,
+			const struct i2c_device_id *id);
+static int w83793_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info);
+static int w83793_remove(struct i2c_client *client);
+static void w83793_init_client(struct i2c_client *client);
+static void w83793_update_nonvolatile(struct device *dev);
+static struct w83793_data *w83793_update_device(struct device *dev);
+
+static const struct i2c_device_id w83793_id[] = {
+	{ "w83793", w83793 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, w83793_id);
+
+static struct i2c_driver w83793_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		   .name = "w83793",
+	},
+	.probe		= w83793_probe,
+	.remove		= w83793_remove,
+	.id_table	= w83793_id,
+	.detect		= w83793_detect,
+	.address_data	= &addr_data,
+};
+
+static ssize_t
+show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83793_data *data = dev_get_drvdata(dev);
+	return sprintf(buf, "%d\n", data->vrm);
+}
+
+static ssize_t
+show_vid(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83793_data *data = w83793_update_device(dev);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int index = sensor_attr->index;
+
+	return sprintf(buf, "%d\n", vid_from_reg(data->vid[index], data->vrm));
+}
+
+static ssize_t
+store_vrm(struct device *dev, struct device_attribute *attr,
+	  const char *buf, size_t count)
+{
+	struct w83793_data *data = dev_get_drvdata(dev);
+	data->vrm = simple_strtoul(buf, NULL, 10);
+	return count;
+}
+
+#define ALARM_STATUS			0
+#define BEEP_ENABLE			1
+static ssize_t
+show_alarm_beep(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83793_data *data = w83793_update_device(dev);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index >> 3;
+	int bit = sensor_attr->index & 0x07;
+	u8 val;
+
+	if (ALARM_STATUS == nr) {
+		val = (data->alarms[index] >> (bit)) & 1;
+	} else {		/* BEEP_ENABLE */
+		val = (data->beeps[index] >> (bit)) & 1;
+	}
+
+	return sprintf(buf, "%u\n", val);
+}
+
+static ssize_t
+store_beep(struct device *dev, struct device_attribute *attr,
+	   const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83793_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int index = sensor_attr->index >> 3;
+	int shift = sensor_attr->index & 0x07;
+	u8 beep_bit = 1 << shift;
+	u8 val;
+
+	val = simple_strtoul(buf, NULL, 10);
+	if (val != 0 && val != 1)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	data->beeps[index] = w83793_read_value(client, W83793_REG_BEEP(index));
+	data->beeps[index] &= ~beep_bit;
+	data->beeps[index] |= val << shift;
+	w83793_write_value(client, W83793_REG_BEEP(index), data->beeps[index]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t
+show_beep_enable(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83793_data *data = w83793_update_device(dev);
+	return sprintf(buf, "%u\n", (data->beep_enable >> 1) & 0x01);
+}
+
+static ssize_t
+store_beep_enable(struct device *dev, struct device_attribute *attr,
+		  const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83793_data *data = i2c_get_clientdata(client);
+	u8 val = simple_strtoul(buf, NULL, 10);
+
+	if (val != 0 && val != 1)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	data->beep_enable = w83793_read_value(client, W83793_REG_OVT_BEEP)
+			    & 0xfd;
+	data->beep_enable |= val << 1;
+	w83793_write_value(client, W83793_REG_OVT_BEEP, data->beep_enable);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/* Write any value to clear chassis alarm */
+static ssize_t
+store_chassis_clear(struct device *dev,
+		    struct device_attribute *attr, const char *buf,
+		    size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83793_data *data = i2c_get_clientdata(client);
+	u8 val;
+
+	mutex_lock(&data->update_lock);
+	val = w83793_read_value(client, W83793_REG_CLR_CHASSIS);
+	val |= 0x80;
+	w83793_write_value(client, W83793_REG_CLR_CHASSIS, val);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define FAN_INPUT			0
+#define FAN_MIN				1
+static ssize_t
+show_fan(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	struct w83793_data *data = w83793_update_device(dev);
+	u16 val;
+
+	if (FAN_INPUT == nr) {
+		val = data->fan[index] & 0x0fff;
+	} else {
+		val = data->fan_min[index] & 0x0fff;
+	}
+
+	return sprintf(buf, "%lu\n", FAN_FROM_REG(val));
+}
+
+static ssize_t
+store_fan_min(struct device *dev, struct device_attribute *attr,
+	      const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int index = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83793_data *data = i2c_get_clientdata(client);
+	u16 val = FAN_TO_REG(simple_strtoul(buf, NULL, 10));
+
+	mutex_lock(&data->update_lock);
+	data->fan_min[index] = val;
+	w83793_write_value(client, W83793_REG_FAN_MIN(index),
+			   (val >> 8) & 0xff);
+	w83793_write_value(client, W83793_REG_FAN_MIN(index) + 1, val & 0xff);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t
+show_pwm(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	struct w83793_data *data = w83793_update_device(dev);
+	u16 val;
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+
+	if (PWM_STOP_TIME == nr)
+		val = TIME_FROM_REG(data->pwm_stop_time[index]);
+	else
+		val = (data->pwm[index][nr] & 0x3f) << 2;
+
+	return sprintf(buf, "%d\n", val);
+}
+
+static ssize_t
+store_pwm(struct device *dev, struct device_attribute *attr,
+	  const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83793_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	u8 val;
+
+	mutex_lock(&data->update_lock);
+	if (PWM_STOP_TIME == nr) {
+		val = TIME_TO_REG(simple_strtoul(buf, NULL, 10));
+		data->pwm_stop_time[index] = val;
+		w83793_write_value(client, W83793_REG_PWM_STOP_TIME(index),
+				   val);
+	} else {
+		val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 0xff)
+		      >> 2;
+		data->pwm[index][nr] =
+		    w83793_read_value(client, W83793_REG_PWM(index, nr)) & 0xc0;
+		data->pwm[index][nr] |= val;
+		w83793_write_value(client, W83793_REG_PWM(index, nr),
+							data->pwm[index][nr]);
+	}
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t
+show_temp(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	struct w83793_data *data = w83793_update_device(dev);
+	long temp = TEMP_FROM_REG(data->temp[index][nr]);
+
+	if (TEMP_READ == nr && index < 4) {	/* Only TD1-TD4 have low bits */
+		int low = ((data->temp_low_bits >> (index * 2)) & 0x03) * 250;
+		temp += temp > 0 ? low : -low;
+	}
+	return sprintf(buf, "%ld\n", temp);
+}
+
+static ssize_t
+store_temp(struct device *dev, struct device_attribute *attr,
+	   const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83793_data *data = i2c_get_clientdata(client);
+	long tmp = simple_strtol(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	data->temp[index][nr] = TEMP_TO_REG(tmp, -128, 127);
+	w83793_write_value(client, W83793_REG_TEMP[index][nr],
+			   data->temp[index][nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+/*
+	TD1-TD4
+	each has 4 mode:(2 bits)
+	0:	Stop monitor
+	1:	Use internal temp sensor(default)
+	2:	Reserved
+	3:	Use sensor in Intel CPU and get result by PECI
+
+	TR1-TR2
+	each has 2 mode:(1 bit)
+	0:	Disable temp sensor monitor
+	1:	To enable temp sensors monitor
+*/
+
+/* 0 disable, 6 PECI */
+static u8 TO_TEMP_MODE[] = { 0, 0, 0, 6 };
+
+static ssize_t
+show_temp_mode(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83793_data *data = w83793_update_device(dev);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int index = sensor_attr->index;
+	u8 mask = (index < 4) ? 0x03 : 0x01;
+	u8 shift = (index < 4) ? (2 * index) : (index - 4);
+	u8 tmp;
+	index = (index < 4) ? 0 : 1;
+
+	tmp = (data->temp_mode[index] >> shift) & mask;
+
+	/* for the internal sensor, found out if diode or thermistor */
+	if (tmp == 1) {
+		tmp = index == 0 ? 3 : 4;
+	} else {
+		tmp = TO_TEMP_MODE[tmp];
+	}
+
+	return sprintf(buf, "%d\n", tmp);
+}
+
+static ssize_t
+store_temp_mode(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83793_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int index = sensor_attr->index;
+	u8 mask = (index < 4) ? 0x03 : 0x01;
+	u8 shift = (index < 4) ? (2 * index) : (index - 4);
+	u8 val = simple_strtoul(buf, NULL, 10);
+
+	/* transform the sysfs interface values into table above */
+	if ((val == 6) && (index < 4)) {
+		val -= 3;
+	} else if ((val == 3 && index < 4)
+		|| (val == 4 && index >= 4)) {
+		/* transform diode or thermistor into internal enable */
+		val = !!val;
+	} else {
+		return -EINVAL;
+	}
+
+	index = (index < 4) ? 0 : 1;
+	mutex_lock(&data->update_lock);
+	data->temp_mode[index] =
+	    w83793_read_value(client, W83793_REG_TEMP_MODE[index]);
+	data->temp_mode[index] &= ~(mask << shift);
+	data->temp_mode[index] |= val << shift;
+	w83793_write_value(client, W83793_REG_TEMP_MODE[index],
+							data->temp_mode[index]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+#define SETUP_PWM_DEFAULT		0
+#define SETUP_PWM_UPTIME		1	/* Unit in 0.1s */
+#define SETUP_PWM_DOWNTIME		2	/* Unit in 0.1s */
+#define SETUP_TEMP_CRITICAL		3
+static ssize_t
+show_sf_setup(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	struct w83793_data *data = w83793_update_device(dev);
+	u32 val = 0;
+
+	if (SETUP_PWM_DEFAULT == nr) {
+		val = (data->pwm_default & 0x3f) << 2;
+	} else if (SETUP_PWM_UPTIME == nr) {
+		val = TIME_FROM_REG(data->pwm_uptime);
+	} else if (SETUP_PWM_DOWNTIME == nr) {
+		val = TIME_FROM_REG(data->pwm_downtime);
+	} else if (SETUP_TEMP_CRITICAL == nr) {
+		val = TEMP_FROM_REG(data->temp_critical & 0x7f);
+	}
+
+	return sprintf(buf, "%d\n", val);
+}
+
+static ssize_t
+store_sf_setup(struct device *dev, struct device_attribute *attr,
+	       const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83793_data *data = i2c_get_clientdata(client);
+
+	mutex_lock(&data->update_lock);
+	if (SETUP_PWM_DEFAULT == nr) {
+		data->pwm_default =
+		    w83793_read_value(client, W83793_REG_PWM_DEFAULT) & 0xc0;
+		data->pwm_default |= SENSORS_LIMIT(simple_strtoul(buf, NULL,
+								  10),
+						   0, 0xff) >> 2;
+		w83793_write_value(client, W83793_REG_PWM_DEFAULT,
+							data->pwm_default);
+	} else if (SETUP_PWM_UPTIME == nr) {
+		data->pwm_uptime = TIME_TO_REG(simple_strtoul(buf, NULL, 10));
+		data->pwm_uptime += data->pwm_uptime == 0 ? 1 : 0;
+		w83793_write_value(client, W83793_REG_PWM_UPTIME,
+							data->pwm_uptime);
+	} else if (SETUP_PWM_DOWNTIME == nr) {
+		data->pwm_downtime = TIME_TO_REG(simple_strtoul(buf, NULL, 10));
+		data->pwm_downtime += data->pwm_downtime == 0 ? 1 : 0;
+		w83793_write_value(client, W83793_REG_PWM_DOWNTIME,
+							data->pwm_downtime);
+	} else {		/* SETUP_TEMP_CRITICAL */
+		data->temp_critical =
+		    w83793_read_value(client, W83793_REG_TEMP_CRITICAL) & 0x80;
+		data->temp_critical |= TEMP_TO_REG(simple_strtol(buf, NULL, 10),
+						   0, 0x7f);
+		w83793_write_value(client, W83793_REG_TEMP_CRITICAL,
+							data->temp_critical);
+	}
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+/*
+	Temp SmartFan control
+	TEMP_FAN_MAP
+	Temp channel control which pwm fan, bitfield, bit 0 indicate pwm1...
+	It's possible two or more temp channels control the same fan, w83793
+	always prefers to pick the most critical request and applies it to
+	the related Fan.
+	It's possible one fan is not in any mapping of 6 temp channels, this
+	means the fan is manual mode
+
+	TEMP_PWM_ENABLE
+	Each temp channel has its own SmartFan mode, and temp channel
+	control	fans that are set by TEMP_FAN_MAP
+	0:	SmartFanII mode
+	1:	Thermal Cruise Mode
+
+	TEMP_CRUISE
+	Target temperature in thermal cruise mode, w83793 will try to turn
+	fan speed to keep the temperature of target device around this
+	temperature.
+
+	TEMP_TOLERANCE
+	If Temp higher or lower than target with this tolerance, w83793
+	will take actions to speed up or slow down the fan to keep the
+	temperature within the tolerance range.
+*/
+
+#define TEMP_FAN_MAP			0
+#define TEMP_PWM_ENABLE			1
+#define TEMP_CRUISE			2
+#define TEMP_TOLERANCE			3
+static ssize_t
+show_sf_ctrl(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	struct w83793_data *data = w83793_update_device(dev);
+	u32 val;
+
+	if (TEMP_FAN_MAP == nr) {
+		val = data->temp_fan_map[index];
+	} else if (TEMP_PWM_ENABLE == nr) {
+		/* +2 to transfrom into 2 and 3 to conform with sysfs intf */
+		val = ((data->pwm_enable >> index) & 0x01) + 2;
+	} else if (TEMP_CRUISE == nr) {
+		val = TEMP_FROM_REG(data->temp_cruise[index] & 0x7f);
+	} else {		/* TEMP_TOLERANCE */
+		val = data->tolerance[index >> 1] >> ((index & 0x01) ? 4 : 0);
+		val = TEMP_FROM_REG(val & 0x0f);
+	}
+	return sprintf(buf, "%d\n", val);
+}
+
+static ssize_t
+store_sf_ctrl(struct device *dev, struct device_attribute *attr,
+	      const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83793_data *data = i2c_get_clientdata(client);
+	u32 val;
+
+	mutex_lock(&data->update_lock);
+	if (TEMP_FAN_MAP == nr) {
+		val = simple_strtoul(buf, NULL, 10) & 0xff;
+		w83793_write_value(client, W83793_REG_TEMP_FAN_MAP(index), val);
+		data->temp_fan_map[index] = val;
+	} else if (TEMP_PWM_ENABLE == nr) {
+		val = simple_strtoul(buf, NULL, 10);
+		if (2 == val || 3 == val) {
+			data->pwm_enable =
+			    w83793_read_value(client, W83793_REG_PWM_ENABLE);
+			if (val - 2)
+				data->pwm_enable |= 1 << index;
+			else
+				data->pwm_enable &= ~(1 << index);
+			w83793_write_value(client, W83793_REG_PWM_ENABLE,
+							data->pwm_enable);
+		} else {
+			mutex_unlock(&data->update_lock);
+			return -EINVAL;
+		}
+	} else if (TEMP_CRUISE == nr) {
+		data->temp_cruise[index] =
+		    w83793_read_value(client, W83793_REG_TEMP_CRUISE(index));
+		val = TEMP_TO_REG(simple_strtol(buf, NULL, 10), 0, 0x7f);
+		data->temp_cruise[index] &= 0x80;
+		data->temp_cruise[index] |= val;
+
+		w83793_write_value(client, W83793_REG_TEMP_CRUISE(index),
+						data->temp_cruise[index]);
+	} else {		/* TEMP_TOLERANCE */
+		int i = index >> 1;
+		u8 shift = (index & 0x01) ? 4 : 0;
+		data->tolerance[i] =
+		    w83793_read_value(client, W83793_REG_TEMP_TOL(i));
+
+		val = TEMP_TO_REG(simple_strtol(buf, NULL, 10), 0, 0x0f);
+		data->tolerance[i] &= ~(0x0f << shift);
+		data->tolerance[i] |= val << shift;
+		w83793_write_value(client, W83793_REG_TEMP_TOL(i),
+							data->tolerance[i]);
+	}
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t
+show_sf2_pwm(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	struct w83793_data *data = w83793_update_device(dev);
+
+	return sprintf(buf, "%d\n", (data->sf2_pwm[index][nr] & 0x3f) << 2);
+}
+
+static ssize_t
+store_sf2_pwm(struct device *dev, struct device_attribute *attr,
+	      const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83793_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	u8 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 0xff) >> 2;
+
+	mutex_lock(&data->update_lock);
+	data->sf2_pwm[index][nr] =
+	    w83793_read_value(client, W83793_REG_SF2_PWM(index, nr)) & 0xc0;
+	data->sf2_pwm[index][nr] |= val;
+	w83793_write_value(client, W83793_REG_SF2_PWM(index, nr),
+						data->sf2_pwm[index][nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t
+show_sf2_temp(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	struct w83793_data *data = w83793_update_device(dev);
+
+	return sprintf(buf, "%ld\n",
+		       TEMP_FROM_REG(data->sf2_temp[index][nr] & 0x7f));
+}
+
+static ssize_t
+store_sf2_temp(struct device *dev, struct device_attribute *attr,
+	       const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83793_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	u8 val = TEMP_TO_REG(simple_strtol(buf, NULL, 10), 0, 0x7f);
+
+	mutex_lock(&data->update_lock);
+	data->sf2_temp[index][nr] =
+	    w83793_read_value(client, W83793_REG_SF2_TEMP(index, nr)) & 0x80;
+	data->sf2_temp[index][nr] |= val;
+	w83793_write_value(client, W83793_REG_SF2_TEMP(index, nr),
+					     data->sf2_temp[index][nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+/* only Vcore A/B and Vtt have additional 2 bits precision */
+static ssize_t
+show_in(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	struct w83793_data *data = w83793_update_device(dev);
+	u16 val = data->in[index][nr];
+
+	if (index < 3) {
+		val <<= 2;
+		val += (data->in_low_bits[nr] >> (index * 2)) & 0x3;
+	}
+	/* voltage inputs 5VDD and 5VSB needs 150mV offset */
+	val = val * scale_in[index] + scale_in_add[index];
+	return sprintf(buf, "%d\n", val);
+}
+
+static ssize_t
+store_in(struct device *dev, struct device_attribute *attr,
+	 const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83793_data *data = i2c_get_clientdata(client);
+	u32 val;
+
+	val =
+	    (simple_strtoul(buf, NULL, 10) +
+	     scale_in[index] / 2) / scale_in[index];
+	mutex_lock(&data->update_lock);
+	if (index > 2) {
+		/* fix the limit values of 5VDD and 5VSB to ALARM mechanism */
+		if (1 == nr || 2 == nr) {
+			val -= scale_in_add[index] / scale_in[index];
+		}
+		val = SENSORS_LIMIT(val, 0, 255);
+	} else {
+		val = SENSORS_LIMIT(val, 0, 0x3FF);
+		data->in_low_bits[nr] =
+		    w83793_read_value(client, W83793_REG_IN_LOW_BITS[nr]);
+		data->in_low_bits[nr] &= ~(0x03 << (2 * index));
+		data->in_low_bits[nr] |= (val & 0x03) << (2 * index);
+		w83793_write_value(client, W83793_REG_IN_LOW_BITS[nr],
+						     data->in_low_bits[nr]);
+		val >>= 2;
+	}
+	data->in[index][nr] = val;
+	w83793_write_value(client, W83793_REG_IN[index][nr],
+							data->in[index][nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define NOT_USED			-1
+
+#define SENSOR_ATTR_IN(index)						\
+	SENSOR_ATTR_2(in##index##_input, S_IRUGO, show_in, NULL,	\
+		IN_READ, index),					\
+	SENSOR_ATTR_2(in##index##_max, S_IRUGO | S_IWUSR, show_in,	\
+		store_in, IN_MAX, index),				\
+	SENSOR_ATTR_2(in##index##_min, S_IRUGO | S_IWUSR, show_in,	\
+		store_in, IN_LOW, index),				\
+	SENSOR_ATTR_2(in##index##_alarm, S_IRUGO, show_alarm_beep,	\
+		NULL, ALARM_STATUS, index + ((index > 2) ? 1 : 0)),	\
+	SENSOR_ATTR_2(in##index##_beep, S_IWUSR | S_IRUGO,		\
+		show_alarm_beep, store_beep, BEEP_ENABLE,		\
+		index + ((index > 2) ? 1 : 0))
+
+#define SENSOR_ATTR_FAN(index)						\
+	SENSOR_ATTR_2(fan##index##_alarm, S_IRUGO, show_alarm_beep,	\
+		NULL, ALARM_STATUS, index + 17),			\
+	SENSOR_ATTR_2(fan##index##_beep, S_IWUSR | S_IRUGO,		\
+		show_alarm_beep, store_beep, BEEP_ENABLE, index + 17),	\
+	SENSOR_ATTR_2(fan##index##_input, S_IRUGO, show_fan,		\
+		NULL, FAN_INPUT, index - 1),				\
+	SENSOR_ATTR_2(fan##index##_min, S_IWUSR | S_IRUGO,		\
+		show_fan, store_fan_min, FAN_MIN, index - 1)
+
+#define SENSOR_ATTR_PWM(index)						\
+	SENSOR_ATTR_2(pwm##index, S_IWUSR | S_IRUGO, show_pwm,		\
+		store_pwm, PWM_DUTY, index - 1),			\
+	SENSOR_ATTR_2(pwm##index##_nonstop, S_IWUSR | S_IRUGO,		\
+		show_pwm, store_pwm, PWM_NONSTOP, index - 1),		\
+	SENSOR_ATTR_2(pwm##index##_start, S_IWUSR | S_IRUGO,		\
+		show_pwm, store_pwm, PWM_START, index - 1),		\
+	SENSOR_ATTR_2(pwm##index##_stop_time, S_IWUSR | S_IRUGO,	\
+		show_pwm, store_pwm, PWM_STOP_TIME, index - 1)
+
+#define SENSOR_ATTR_TEMP(index)						\
+	SENSOR_ATTR_2(temp##index##_type, S_IRUGO | S_IWUSR,		\
+		show_temp_mode, store_temp_mode, NOT_USED, index - 1),	\
+	SENSOR_ATTR_2(temp##index##_input, S_IRUGO, show_temp,		\
+		NULL, TEMP_READ, index - 1),				\
+	SENSOR_ATTR_2(temp##index##_max, S_IRUGO | S_IWUSR, show_temp,	\
+		store_temp, TEMP_CRIT, index - 1),			\
+	SENSOR_ATTR_2(temp##index##_max_hyst, S_IRUGO | S_IWUSR,	\
+		show_temp, store_temp, TEMP_CRIT_HYST, index - 1),	\
+	SENSOR_ATTR_2(temp##index##_warn, S_IRUGO | S_IWUSR, show_temp,	\
+		store_temp, TEMP_WARN, index - 1),			\
+	SENSOR_ATTR_2(temp##index##_warn_hyst, S_IRUGO | S_IWUSR,	\
+		show_temp, store_temp, TEMP_WARN_HYST, index - 1),	\
+	SENSOR_ATTR_2(temp##index##_alarm, S_IRUGO,			\
+		show_alarm_beep, NULL, ALARM_STATUS, index + 11),	\
+	SENSOR_ATTR_2(temp##index##_beep, S_IWUSR | S_IRUGO,		\
+		show_alarm_beep, store_beep, BEEP_ENABLE, index + 11),	\
+	SENSOR_ATTR_2(temp##index##_auto_channels_pwm,			\
+		S_IRUGO | S_IWUSR, show_sf_ctrl, store_sf_ctrl,		\
+		TEMP_FAN_MAP, index - 1),				\
+	SENSOR_ATTR_2(temp##index##_pwm_enable, S_IWUSR | S_IRUGO,	\
+		show_sf_ctrl, store_sf_ctrl, TEMP_PWM_ENABLE,		\
+		index - 1),						\
+	SENSOR_ATTR_2(thermal_cruise##index, S_IRUGO | S_IWUSR,		\
+		show_sf_ctrl, store_sf_ctrl, TEMP_CRUISE, index - 1),	\
+	SENSOR_ATTR_2(tolerance##index, S_IRUGO | S_IWUSR, show_sf_ctrl,\
+		store_sf_ctrl, TEMP_TOLERANCE, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point1_pwm, S_IRUGO | S_IWUSR, \
+		show_sf2_pwm, store_sf2_pwm, 0, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point2_pwm, S_IRUGO | S_IWUSR, \
+		show_sf2_pwm, store_sf2_pwm, 1, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point3_pwm, S_IRUGO | S_IWUSR, \
+		show_sf2_pwm, store_sf2_pwm, 2, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point4_pwm, S_IRUGO | S_IWUSR, \
+		show_sf2_pwm, store_sf2_pwm, 3, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point5_pwm, S_IRUGO | S_IWUSR, \
+		show_sf2_pwm, store_sf2_pwm, 4, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point6_pwm, S_IRUGO | S_IWUSR, \
+		show_sf2_pwm, store_sf2_pwm, 5, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point7_pwm, S_IRUGO | S_IWUSR, \
+		show_sf2_pwm, store_sf2_pwm, 6, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point1_temp, S_IRUGO | S_IWUSR,\
+		show_sf2_temp, store_sf2_temp, 0, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point2_temp, S_IRUGO | S_IWUSR,\
+		show_sf2_temp, store_sf2_temp, 1, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point3_temp, S_IRUGO | S_IWUSR,\
+		show_sf2_temp, store_sf2_temp, 2, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point4_temp, S_IRUGO | S_IWUSR,\
+		show_sf2_temp, store_sf2_temp, 3, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point5_temp, S_IRUGO | S_IWUSR,\
+		show_sf2_temp, store_sf2_temp, 4, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point6_temp, S_IRUGO | S_IWUSR,\
+		show_sf2_temp, store_sf2_temp, 5, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point7_temp, S_IRUGO | S_IWUSR,\
+		show_sf2_temp, store_sf2_temp, 6, index - 1)
+
+static struct sensor_device_attribute_2 w83793_sensor_attr_2[] = {
+	SENSOR_ATTR_IN(0),
+	SENSOR_ATTR_IN(1),
+	SENSOR_ATTR_IN(2),
+	SENSOR_ATTR_IN(3),
+	SENSOR_ATTR_IN(4),
+	SENSOR_ATTR_IN(5),
+	SENSOR_ATTR_IN(6),
+	SENSOR_ATTR_IN(7),
+	SENSOR_ATTR_IN(8),
+	SENSOR_ATTR_IN(9),
+	SENSOR_ATTR_FAN(1),
+	SENSOR_ATTR_FAN(2),
+	SENSOR_ATTR_FAN(3),
+	SENSOR_ATTR_FAN(4),
+	SENSOR_ATTR_FAN(5),
+	SENSOR_ATTR_PWM(1),
+	SENSOR_ATTR_PWM(2),
+	SENSOR_ATTR_PWM(3),
+};
+
+static struct sensor_device_attribute_2 w83793_temp[] = {
+	SENSOR_ATTR_TEMP(1),
+	SENSOR_ATTR_TEMP(2),
+	SENSOR_ATTR_TEMP(3),
+	SENSOR_ATTR_TEMP(4),
+	SENSOR_ATTR_TEMP(5),
+	SENSOR_ATTR_TEMP(6),
+};
+
+/* Fan6-Fan12 */
+static struct sensor_device_attribute_2 w83793_left_fan[] = {
+	SENSOR_ATTR_FAN(6),
+	SENSOR_ATTR_FAN(7),
+	SENSOR_ATTR_FAN(8),
+	SENSOR_ATTR_FAN(9),
+	SENSOR_ATTR_FAN(10),
+	SENSOR_ATTR_FAN(11),
+	SENSOR_ATTR_FAN(12),
+};
+
+/* Pwm4-Pwm8 */
+static struct sensor_device_attribute_2 w83793_left_pwm[] = {
+	SENSOR_ATTR_PWM(4),
+	SENSOR_ATTR_PWM(5),
+	SENSOR_ATTR_PWM(6),
+	SENSOR_ATTR_PWM(7),
+	SENSOR_ATTR_PWM(8),
+};
+
+static struct sensor_device_attribute_2 w83793_vid[] = {
+	SENSOR_ATTR_2(cpu0_vid, S_IRUGO, show_vid, NULL, NOT_USED, 0),
+	SENSOR_ATTR_2(cpu1_vid, S_IRUGO, show_vid, NULL, NOT_USED, 1),
+};
+static DEVICE_ATTR(vrm, S_IWUSR | S_IRUGO, show_vrm, store_vrm);
+
+static struct sensor_device_attribute_2 sda_single_files[] = {
+	SENSOR_ATTR_2(chassis, S_IWUSR | S_IRUGO, show_alarm_beep,
+		      store_chassis_clear, ALARM_STATUS, 30),
+	SENSOR_ATTR_2(beep_enable, S_IWUSR | S_IRUGO, show_beep_enable,
+		      store_beep_enable, NOT_USED, NOT_USED),
+	SENSOR_ATTR_2(pwm_default, S_IWUSR | S_IRUGO, show_sf_setup,
+		      store_sf_setup, SETUP_PWM_DEFAULT, NOT_USED),
+	SENSOR_ATTR_2(pwm_uptime, S_IWUSR | S_IRUGO, show_sf_setup,
+		      store_sf_setup, SETUP_PWM_UPTIME, NOT_USED),
+	SENSOR_ATTR_2(pwm_downtime, S_IWUSR | S_IRUGO, show_sf_setup,
+		      store_sf_setup, SETUP_PWM_DOWNTIME, NOT_USED),
+	SENSOR_ATTR_2(temp_critical, S_IWUSR | S_IRUGO, show_sf_setup,
+		      store_sf_setup, SETUP_TEMP_CRITICAL, NOT_USED),
+};
+
+static void w83793_init_client(struct i2c_client *client)
+{
+	if (reset) {
+		w83793_write_value(client, W83793_REG_CONFIG, 0x80);
+	}
+
+	/* Start monitoring */
+	w83793_write_value(client, W83793_REG_CONFIG,
+			   w83793_read_value(client, W83793_REG_CONFIG) | 0x01);
+
+}
+
+static int w83793_remove(struct i2c_client *client)
+{
+	struct w83793_data *data = i2c_get_clientdata(client);
+	struct device *dev = &client->dev;
+	int i;
+
+	hwmon_device_unregister(data->hwmon_dev);
+
+	for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++)
+		device_remove_file(dev,
+				   &w83793_sensor_attr_2[i].dev_attr);
+
+	for (i = 0; i < ARRAY_SIZE(sda_single_files); i++)
+		device_remove_file(dev, &sda_single_files[i].dev_attr);
+
+	for (i = 0; i < ARRAY_SIZE(w83793_vid); i++)
+		device_remove_file(dev, &w83793_vid[i].dev_attr);
+	device_remove_file(dev, &dev_attr_vrm);
+
+	for (i = 0; i < ARRAY_SIZE(w83793_left_fan); i++)
+		device_remove_file(dev, &w83793_left_fan[i].dev_attr);
+
+	for (i = 0; i < ARRAY_SIZE(w83793_left_pwm); i++)
+		device_remove_file(dev, &w83793_left_pwm[i].dev_attr);
+
+	for (i = 0; i < ARRAY_SIZE(w83793_temp); i++)
+		device_remove_file(dev, &w83793_temp[i].dev_attr);
+
+	if (data->lm75[0] != NULL)
+		i2c_unregister_device(data->lm75[0]);
+	if (data->lm75[1] != NULL)
+		i2c_unregister_device(data->lm75[1]);
+
+	kfree(data);
+
+	return 0;
+}
+
+static int
+w83793_detect_subclients(struct i2c_client *client)
+{
+	int i, id, err;
+	int address = client->addr;
+	u8 tmp;
+	struct i2c_adapter *adapter = client->adapter;
+	struct w83793_data *data = i2c_get_clientdata(client);
+
+	id = i2c_adapter_id(adapter);
+	if (force_subclients[0] == id && force_subclients[1] == address) {
+		for (i = 2; i <= 3; i++) {
+			if (force_subclients[i] < 0x48
+			    || force_subclients[i] > 0x4f) {
+				dev_err(&client->dev,
+					"invalid subclient "
+					"address %d; must be 0x48-0x4f\n",
+					force_subclients[i]);
+				err = -EINVAL;
+				goto ERROR_SC_0;
+			}
+		}
+		w83793_write_value(client, W83793_REG_I2C_SUBADDR,
+				   (force_subclients[2] & 0x07) |
+				   ((force_subclients[3] & 0x07) << 4));
+	}
+
+	tmp = w83793_read_value(client, W83793_REG_I2C_SUBADDR);
+	if (!(tmp & 0x08)) {
+		data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (tmp & 0x7));
+	}
+	if (!(tmp & 0x80)) {
+		if ((data->lm75[0] != NULL)
+		    && ((tmp & 0x7) == ((tmp >> 4) & 0x7))) {
+			dev_err(&client->dev,
+				"duplicate addresses 0x%x, "
+				"use force_subclients\n", data->lm75[0]->addr);
+			err = -ENODEV;
+			goto ERROR_SC_1;
+		}
+		data->lm75[1] = i2c_new_dummy(adapter,
+					      0x48 + ((tmp >> 4) & 0x7));
+	}
+
+	return 0;
+
+	/* Undo inits in case of errors */
+
+ERROR_SC_1:
+	if (data->lm75[0] != NULL)
+		i2c_unregister_device(data->lm75[0]);
+ERROR_SC_0:
+	return err;
+}
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int w83793_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info)
+{
+	u8 tmp, bank;
+	struct i2c_adapter *adapter = client->adapter;
+	unsigned short address = client->addr;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
+		return -ENODEV;
+	}
+
+	bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL);
+
+	if (kind < 0) {
+		tmp = bank & 0x80 ? 0x5c : 0xa3;
+		/* Check Winbond vendor ID */
+		if (tmp != i2c_smbus_read_byte_data(client,
+							W83793_REG_VENDORID)) {
+			pr_debug("w83793: Detection failed at check "
+				 "vendor id\n");
+			return -ENODEV;
+		}
+
+		/* If Winbond chip, address of chip and W83793_REG_I2C_ADDR
+		   should match */
+		if ((bank & 0x07) == 0
+		 && i2c_smbus_read_byte_data(client, W83793_REG_I2C_ADDR) !=
+		    (address << 1)) {
+			pr_debug("w83793: Detection failed at check "
+				 "i2c addr\n");
+			return -ENODEV;
+		}
+
+	}
+
+	/* We have either had a force parameter, or we have already detected the
+	   Winbond. Determine the chip type now */
+
+	if (kind <= 0) {
+		if (0x7b == i2c_smbus_read_byte_data(client,
+						     W83793_REG_CHIPID)) {
+			kind = w83793;
+		} else {
+			if (kind == 0)
+				dev_warn(&adapter->dev, "w83793: Ignoring "
+					 "'force' parameter for unknown chip "
+					 "at address 0x%02x\n", address);
+			return -ENODEV;
+		}
+	}
+
+	strlcpy(info->type, "w83793", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int w83793_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	struct device *dev = &client->dev;
+	struct w83793_data *data;
+	int i, tmp, val, err;
+	int files_fan = ARRAY_SIZE(w83793_left_fan) / 7;
+	int files_pwm = ARRAY_SIZE(w83793_left_pwm) / 5;
+	int files_temp = ARRAY_SIZE(w83793_temp) / 6;
+
+	data = kzalloc(sizeof(struct w83793_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	data->bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL);
+	mutex_init(&data->update_lock);
+
+	err = w83793_detect_subclients(client);
+	if (err)
+		goto free_mem;
+
+	/* Initialize the chip */
+	w83793_init_client(client);
+
+	/*
+	   Only fan 1-5 has their own input pins,
+	   Pwm 1-3 has their own pins
+	 */
+	data->has_fan = 0x1f;
+	data->has_pwm = 0x07;
+	tmp = w83793_read_value(client, W83793_REG_MFC);
+	val = w83793_read_value(client, W83793_REG_FANIN_CTRL);
+
+	/* check the function of pins 49-56 */
+	if (tmp & 0x80) {
+		data->has_vid |= 0x2;	/* has VIDB */
+	} else {
+		data->has_pwm |= 0x18;	/* pwm 4,5 */
+		if (val & 0x01) {	/* fan 6 */
+			data->has_fan |= 0x20;
+			data->has_pwm |= 0x20;
+		}
+		if (val & 0x02) {	/* fan 7 */
+			data->has_fan |= 0x40;
+			data->has_pwm |= 0x40;
+		}
+		if (!(tmp & 0x40) && (val & 0x04)) {	/* fan 8 */
+			data->has_fan |= 0x80;
+			data->has_pwm |= 0x80;
+		}
+	}
+
+	/* check the function of pins 37-40 */
+	if (!(tmp & 0x29))
+		data->has_vid |= 0x1;	/* has VIDA */
+	if (0x08 == (tmp & 0x0c)) {
+		if (val & 0x08)	/* fan 9 */
+			data->has_fan |= 0x100;
+		if (val & 0x10)	/* fan 10 */
+			data->has_fan |= 0x200;
+	}
+	if (0x20 == (tmp & 0x30)) {
+		if (val & 0x20)	/* fan 11 */
+			data->has_fan |= 0x400;
+		if (val & 0x40)	/* fan 12 */
+			data->has_fan |= 0x800;
+	}
+
+	if ((tmp & 0x01) && (val & 0x04)) {	/* fan 8, second location */
+		data->has_fan |= 0x80;
+		data->has_pwm |= 0x80;
+	}
+
+	tmp = w83793_read_value(client, W83793_REG_FANIN_SEL);
+	if ((tmp & 0x01) && (val & 0x08)) {	/* fan 9, second location */
+		data->has_fan |= 0x100;
+	}
+	if ((tmp & 0x02) && (val & 0x10)) {	/* fan 10, second location */
+		data->has_fan |= 0x200;
+	}
+	if ((tmp & 0x04) && (val & 0x20)) {	/* fan 11, second location */
+		data->has_fan |= 0x400;
+	}
+	if ((tmp & 0x08) && (val & 0x40)) {	/* fan 12, second location */
+		data->has_fan |= 0x800;
+	}
+
+	/* check the temp1-6 mode, ignore former AMDSI selected inputs */
+	tmp = w83793_read_value(client,W83793_REG_TEMP_MODE[0]);
+	if (tmp & 0x01)
+		data->has_temp |= 0x01;
+	if (tmp & 0x04)
+		data->has_temp |= 0x02;
+	if (tmp & 0x10)
+		data->has_temp |= 0x04;
+	if (tmp & 0x40)
+		data->has_temp |= 0x08;
+
+	tmp = w83793_read_value(client,W83793_REG_TEMP_MODE[1]);
+	if (tmp & 0x01)
+		data->has_temp |= 0x10;
+	if (tmp & 0x02)
+		data->has_temp |= 0x20;
+
+	/* Register sysfs hooks */
+	for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++) {
+		err = device_create_file(dev,
+					 &w83793_sensor_attr_2[i].dev_attr);
+		if (err)
+			goto exit_remove;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(w83793_vid); i++) {
+		if (!(data->has_vid & (1 << i)))
+			continue;
+		err = device_create_file(dev, &w83793_vid[i].dev_attr);
+		if (err)
+			goto exit_remove;
+	}
+	if (data->has_vid) {
+		data->vrm = vid_which_vrm();
+		err = device_create_file(dev, &dev_attr_vrm);
+		if (err)
+			goto exit_remove;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) {
+		err = device_create_file(dev, &sda_single_files[i].dev_attr);
+		if (err)
+			goto exit_remove;
+
+	}
+
+	for (i = 0; i < 6; i++) {
+		int j;
+		if (!(data->has_temp & (1 << i)))
+			continue;
+		for (j = 0; j < files_temp; j++) {
+			err = device_create_file(dev,
+						&w83793_temp[(i) * files_temp
+								+ j].dev_attr);
+			if (err)
+				goto exit_remove;
+		}
+	}
+
+	for (i = 5; i < 12; i++) {
+		int j;
+		if (!(data->has_fan & (1 << i)))
+			continue;
+		for (j = 0; j < files_fan; j++) {
+			err = device_create_file(dev,
+					   &w83793_left_fan[(i - 5) * files_fan
+								+ j].dev_attr);
+			if (err)
+				goto exit_remove;
+		}
+	}
+
+	for (i = 3; i < 8; i++) {
+		int j;
+		if (!(data->has_pwm & (1 << i)))
+			continue;
+		for (j = 0; j < files_pwm; j++) {
+			err = device_create_file(dev,
+					   &w83793_left_pwm[(i - 3) * files_pwm
+								+ j].dev_attr);
+			if (err)
+				goto exit_remove;
+		}
+	}
+
+	data->hwmon_dev = hwmon_device_register(dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	return 0;
+
+	/* Unregister sysfs hooks */
+
+exit_remove:
+	for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++)
+		device_remove_file(dev, &w83793_sensor_attr_2[i].dev_attr);
+
+	for (i = 0; i < ARRAY_SIZE(sda_single_files); i++)
+		device_remove_file(dev, &sda_single_files[i].dev_attr);
+
+	for (i = 0; i < ARRAY_SIZE(w83793_vid); i++)
+		device_remove_file(dev, &w83793_vid[i].dev_attr);
+
+	for (i = 0; i < ARRAY_SIZE(w83793_left_fan); i++)
+		device_remove_file(dev, &w83793_left_fan[i].dev_attr);
+
+	for (i = 0; i < ARRAY_SIZE(w83793_left_pwm); i++)
+		device_remove_file(dev, &w83793_left_pwm[i].dev_attr);
+
+	for (i = 0; i < ARRAY_SIZE(w83793_temp); i++)
+		device_remove_file(dev, &w83793_temp[i].dev_attr);
+
+	if (data->lm75[0] != NULL)
+		i2c_unregister_device(data->lm75[0]);
+	if (data->lm75[1] != NULL)
+		i2c_unregister_device(data->lm75[1]);
+free_mem:
+	kfree(data);
+exit:
+	return err;
+}
+
+static void w83793_update_nonvolatile(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83793_data *data = i2c_get_clientdata(client);
+	int i, j;
+	/*
+	   They are somewhat "stable" registers, and to update them everytime
+	   takes so much time, it's just not worthy. Update them in a long
+	   interval to avoid exception.
+	 */
+	if (!(time_after(jiffies, data->last_nonvolatile + HZ * 300)
+	      || !data->valid))
+		return;
+	/* update voltage limits */
+	for (i = 1; i < 3; i++) {
+		for (j = 0; j < ARRAY_SIZE(data->in); j++) {
+			data->in[j][i] =
+			    w83793_read_value(client, W83793_REG_IN[j][i]);
+		}
+		data->in_low_bits[i] =
+		    w83793_read_value(client, W83793_REG_IN_LOW_BITS[i]);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) {
+		/* Update the Fan measured value and limits */
+		if (!(data->has_fan & (1 << i))) {
+			continue;
+		}
+		data->fan_min[i] =
+		    w83793_read_value(client, W83793_REG_FAN_MIN(i)) << 8;
+		data->fan_min[i] |=
+		    w83793_read_value(client, W83793_REG_FAN_MIN(i) + 1);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(data->temp_fan_map); i++) {
+		if (!(data->has_temp & (1 << i)))
+			continue;
+		data->temp_fan_map[i] =
+		    w83793_read_value(client, W83793_REG_TEMP_FAN_MAP(i));
+		for (j = 1; j < 5; j++) {
+			data->temp[i][j] =
+			    w83793_read_value(client, W83793_REG_TEMP[i][j]);
+		}
+		data->temp_cruise[i] =
+		    w83793_read_value(client, W83793_REG_TEMP_CRUISE(i));
+		for (j = 0; j < 7; j++) {
+			data->sf2_pwm[i][j] =
+			    w83793_read_value(client, W83793_REG_SF2_PWM(i, j));
+			data->sf2_temp[i][j] =
+			    w83793_read_value(client,
+					      W83793_REG_SF2_TEMP(i, j));
+		}
+	}
+
+	for (i = 0; i < ARRAY_SIZE(data->temp_mode); i++)
+		data->temp_mode[i] =
+		    w83793_read_value(client, W83793_REG_TEMP_MODE[i]);
+
+	for (i = 0; i < ARRAY_SIZE(data->tolerance); i++) {
+		data->tolerance[i] =
+		    w83793_read_value(client, W83793_REG_TEMP_TOL(i));
+	}
+
+	for (i = 0; i < ARRAY_SIZE(data->pwm); i++) {
+		if (!(data->has_pwm & (1 << i)))
+			continue;
+		data->pwm[i][PWM_NONSTOP] =
+		    w83793_read_value(client, W83793_REG_PWM(i, PWM_NONSTOP));
+		data->pwm[i][PWM_START] =
+		    w83793_read_value(client, W83793_REG_PWM(i, PWM_START));
+		data->pwm_stop_time[i] =
+		    w83793_read_value(client, W83793_REG_PWM_STOP_TIME(i));
+	}
+
+	data->pwm_default = w83793_read_value(client, W83793_REG_PWM_DEFAULT);
+	data->pwm_enable = w83793_read_value(client, W83793_REG_PWM_ENABLE);
+	data->pwm_uptime = w83793_read_value(client, W83793_REG_PWM_UPTIME);
+	data->pwm_downtime = w83793_read_value(client, W83793_REG_PWM_DOWNTIME);
+	data->temp_critical =
+	    w83793_read_value(client, W83793_REG_TEMP_CRITICAL);
+	data->beep_enable = w83793_read_value(client, W83793_REG_OVT_BEEP);
+
+	for (i = 0; i < ARRAY_SIZE(data->beeps); i++) {
+		data->beeps[i] = w83793_read_value(client, W83793_REG_BEEP(i));
+	}
+
+	data->last_nonvolatile = jiffies;
+}
+
+static struct w83793_data *w83793_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83793_data *data = i2c_get_clientdata(client);
+	int i;
+
+	mutex_lock(&data->update_lock);
+
+	if (!(time_after(jiffies, data->last_updated + HZ * 2)
+	      || !data->valid))
+		goto END;
+
+	/* Update the voltages measured value and limits */
+	for (i = 0; i < ARRAY_SIZE(data->in); i++)
+		data->in[i][IN_READ] =
+		    w83793_read_value(client, W83793_REG_IN[i][IN_READ]);
+
+	data->in_low_bits[IN_READ] =
+	    w83793_read_value(client, W83793_REG_IN_LOW_BITS[IN_READ]);
+
+	for (i = 0; i < ARRAY_SIZE(data->fan); i++) {
+		if (!(data->has_fan & (1 << i))) {
+			continue;
+		}
+		data->fan[i] =
+		    w83793_read_value(client, W83793_REG_FAN(i)) << 8;
+		data->fan[i] |=
+		    w83793_read_value(client, W83793_REG_FAN(i) + 1);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(data->temp); i++) {
+		if (!(data->has_temp & (1 << i)))
+			continue;
+		data->temp[i][TEMP_READ] =
+		    w83793_read_value(client, W83793_REG_TEMP[i][TEMP_READ]);
+	}
+
+	data->temp_low_bits =
+	    w83793_read_value(client, W83793_REG_TEMP_LOW_BITS);
+
+	for (i = 0; i < ARRAY_SIZE(data->pwm); i++) {
+		if (data->has_pwm & (1 << i))
+			data->pwm[i][PWM_DUTY] =
+			    w83793_read_value(client,
+					      W83793_REG_PWM(i, PWM_DUTY));
+	}
+
+	for (i = 0; i < ARRAY_SIZE(data->alarms); i++)
+		data->alarms[i] =
+		    w83793_read_value(client, W83793_REG_ALARM(i));
+	if (data->has_vid & 0x01)
+		data->vid[0] = w83793_read_value(client, W83793_REG_VID_INA);
+	if (data->has_vid & 0x02)
+		data->vid[1] = w83793_read_value(client, W83793_REG_VID_INB);
+	w83793_update_nonvolatile(dev);
+	data->last_updated = jiffies;
+	data->valid = 1;
+
+END:
+	mutex_unlock(&data->update_lock);
+	return data;
+}
+
+/* Ignore the possibility that somebody change bank outside the driver
+   Must be called with data->update_lock held, except during initialization */
+static u8 w83793_read_value(struct i2c_client *client, u16 reg)
+{
+	struct w83793_data *data = i2c_get_clientdata(client);
+	u8 res = 0xff;
+	u8 new_bank = reg >> 8;
+
+	new_bank |= data->bank & 0xfc;
+	if (data->bank != new_bank) {
+		if (i2c_smbus_write_byte_data
+		    (client, W83793_REG_BANKSEL, new_bank) >= 0)
+			data->bank = new_bank;
+		else {
+			dev_err(&client->dev,
+				"set bank to %d failed, fall back "
+				"to bank %d, read reg 0x%x error\n",
+				new_bank, data->bank, reg);
+			res = 0x0;	/* read 0x0 from the chip */
+			goto END;
+		}
+	}
+	res = i2c_smbus_read_byte_data(client, reg & 0xff);
+END:
+	return res;
+}
+
+/* Must be called with data->update_lock held, except during initialization */
+static int w83793_write_value(struct i2c_client *client, u16 reg, u8 value)
+{
+	struct w83793_data *data = i2c_get_clientdata(client);
+	int res;
+	u8 new_bank = reg >> 8;
+
+	new_bank |= data->bank & 0xfc;
+	if (data->bank != new_bank) {
+		if ((res = i2c_smbus_write_byte_data
+		    (client, W83793_REG_BANKSEL, new_bank)) >= 0)
+			data->bank = new_bank;
+		else {
+			dev_err(&client->dev,
+				"set bank to %d failed, fall back "
+				"to bank %d, write reg 0x%x error\n",
+				new_bank, data->bank, reg);
+			goto END;
+		}
+	}
+
+	res = i2c_smbus_write_byte_data(client, reg & 0xff, value);
+END:
+	return res;
+}
+
+static int __init sensors_w83793_init(void)
+{
+	return i2c_add_driver(&w83793_driver);
+}
+
+static void __exit sensors_w83793_exit(void)
+{
+	i2c_del_driver(&w83793_driver);
+}
+
+MODULE_AUTHOR("Yuan Mu");
+MODULE_DESCRIPTION("w83793 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_w83793_init);
+module_exit(sensors_w83793_exit);
diff --git a/drivers/hwmon/w83795.c b/drivers/hwmon/w83795.c
new file mode 100644
index 0000000..00c9948
--- /dev/null
+++ b/drivers/hwmon/w83795.c
@@ -0,0 +1,2137 @@
+/*
+ *  w83795.c - Linux kernel driver for hardware monitoring
+ *  Copyright (C) 2008 Nuvoton Technology Corp.
+ *                Wei Song
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation - version 2.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ *  02110-1301 USA.
+ *
+ *  Supports following chips:
+ *
+ *  Chip       #vin   #fanin #pwm #temp #dts wchipid  vendid  i2c  ISA
+ *  w83795g     21     14     8     6     8    0x79   0x5ca3  yes   no
+ *  w83795adg   18     14     2     6     8    0x79   0x5ca3  yes   no
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/delay.h>
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END };
+
+I2C_CLIENT_INSMOD_1(w83795);
+
+static int reset;
+module_param(reset, bool, 0);
+MODULE_PARM_DESC(reset, "Set to 1 to reset chip, not recommended");
+
+
+#define W83795_REG_BANKSEL		0x00
+#define W83795_REG_VENDORID		0xfd
+#define W83795_REG_CHIPID		0xfe
+#define W83795_REG_DEVICEID		0xfb
+
+#define W83795_REG_I2C_ADDR		0xfc
+#define W83795_REG_CONFIG		0x01
+#define W83795_REG_CONFIG_CONFIG48	0x04
+
+/* Multi-Function Pin Ctrl Registers */
+#define W83795_REG_VOLT_CTRL1		0x02
+#define W83795_REG_VOLT_CTRL2		0x03
+#define W83795_REG_TEMP_CTRL1		0x04
+#define W83795_REG_TEMP_CTRL2		0x05
+#define W83795_REG_FANIN_CTRL1		0x06
+#define W83795_REG_FANIN_CTRL2		0x07
+#define W83795_REG_VMIGB_CTRL		0x08
+
+#define TEMP_CTRL_DISABLE		0
+#define TEMP_CTRL_TD			1
+#define TEMP_CTRL_VSEN			2
+#define TEMP_CTRL_TR			3
+#define TEMP_CTRL_SHIFT			4
+#define TEMP_CTRL_HASIN_SHIFT		5
+/* temp mode may effect VSEN17-12 (in20-15) */
+static u16 W83795_REG_TEMP_CTRL[][6] = {
+	/* Disable, TD, VSEN, TR, register shift value, has_in shift num */
+	{0x00, 0x01, 0x02, 0x03, 0, 17},	/* TR1 */
+	{0x00, 0x04, 0x08, 0x0C, 2, 18},	/* TR2 */
+	{0x00, 0x10, 0x20, 0x30, 4, 19},	/* TR3 */
+	{0x00, 0x40, 0x80, 0xC0, 6, 20},	/* TR4 */
+	{0x00, 0x00, 0x02, 0x03, 0, 15},	/* TR5 */
+	{0x00, 0x00, 0x08, 0x0C, 2, 16},	/* TR6 */
+};
+
+#define TEMP_READ			0
+#define TEMP_CRIT			1
+#define TEMP_CRIT_HYST			2
+#define TEMP_WARN			3
+#define TEMP_WARN_HYST			4
+/* only crit and crit_hyst affect real-time alarm status
+ * current crit crit_hyst warn warn_hyst */
+static u16 W83795_REG_TEMP[][5] = {
+	{0x21, 0x96, 0x97, 0x98, 0x99},	/* TD1/TR1 */
+	{0x22, 0x9a, 0x9b, 0x9c, 0x9d},	/* TD2/TR2 */
+	{0x23, 0x9e, 0x9f, 0xa0, 0xa1},	/* TD3/TR3 */
+	{0x24, 0xa2, 0xa3, 0xa4, 0xa5},	/* TD4/TR4 */
+	{0x1f, 0xa6, 0xa7, 0xa8, 0xa9},	/* TR5 */
+	{0x20, 0xaa, 0xab, 0xac, 0xad},	/* TR6 */
+};
+
+#define IN_READ				0
+#define IN_MAX				1
+#define IN_LOW				2
+static const u16 W83795_REG_IN[][3] = {
+	/* Current, HL, LL */
+	{0x10, 0x70, 0x71},	/* VSEN1 */
+	{0x11, 0x72, 0x73},	/* VSEN2 */
+	{0x12, 0x74, 0x75},	/* VSEN3 */
+	{0x13, 0x76, 0x77},	/* VSEN4 */
+	{0x14, 0x78, 0x79},	/* VSEN5 */
+	{0x15, 0x7a, 0x7b},	/* VSEN6 */
+	{0x16, 0x7c, 0x7d},	/* VSEN7 */
+	{0x17, 0x7e, 0x7f},	/* VSEN8 */
+	{0x18, 0x80, 0x81},	/* VSEN9 */
+	{0x19, 0x82, 0x83},	/* VSEN10 */
+	{0x1A, 0x84, 0x85},	/* VSEN11 */
+	{0x1B, 0x86, 0x87},	/* VTT */
+	{0x1C, 0x88, 0x89},	/* 3VDD */
+	{0x1D, 0x8a, 0x8b},	/* 3VSB */
+	{0x1E, 0x8c, 0x8d},	/* VBAT */
+	{0x1F, 0xa6, 0xa7},	/* VSEN12 */
+	{0x20, 0xaa, 0xab},	/* VSEN13 */
+	{0x21, 0x96, 0x97},	/* VSEN14 */
+	{0x22, 0x9a, 0x9b},	/* VSEN15 */
+	{0x23, 0x9e, 0x9f},	/* VSEN16 */
+	{0x24, 0xa2, 0xa3},	/* VSEN17 */
+};
+#define W83795_REG_VRLSB		0x3C
+#define VRLSB_SHIFT			6
+
+static const u8 W83795_REG_IN_HL_LSB[] = {
+	0x8e,	/* VSEN1-4 */
+	0x90,	/* VSEN5-8 */
+	0x92,	/* VSEN9-11 */
+	0x94,	/* VTT, 3VDD, 3VSB, 3VBAT */
+	0xa8,	/* VSEN12 */
+	0xac,	/* VSEN13 */
+	0x98,	/* VSEN14 */
+	0x9c,	/* VSEN15 */
+	0xa0,	/* VSEN16 */
+	0xa4,	/* VSEN17 */
+};
+
+#define IN_LSB_REG(index, type) \
+	(((type) == 1) ? W83795_REG_IN_HL_LSB[(index)] \
+	: (W83795_REG_IN_HL_LSB[(index)] + 1))
+
+#define IN_LSB_REG_NUM			10
+
+#define IN_LSB_SHIFT			0
+#define IN_LSB_IDX			1
+static const u8 IN_LSB_SHIFT_IDX[][2] = {
+	/* High/Low LSB shift, LSB No. */
+	{0x00, 0x00},	/* VSEN1 */
+	{0x02, 0x00},	/* VSEN2 */
+	{0x04, 0x00},	/* VSEN3 */
+	{0x06, 0x00},	/* VSEN4 */
+	{0x00, 0x01},	/* VSEN5 */
+	{0x02, 0x01},	/* VSEN6 */
+	{0x04, 0x01},	/* VSEN7 */
+	{0x06, 0x01},	/* VSEN8 */
+	{0x00, 0x02},	/* VSEN9 */
+	{0x02, 0x02},	/* VSEN10 */
+	{0x04, 0x02},	/* VSEN11 */
+	{0x00, 0x03},	/* VTT */
+	{0x02, 0x03},	/* 3VDD */
+	{0x04, 0x03},	/* 3VSB	*/
+	{0x06, 0x03},	/* VBAT	*/
+	{0x06, 0x04},	/* VSEN12 */
+	{0x06, 0x05},	/* VSEN13 */
+	{0x06, 0x06},	/* VSEN14 */
+	{0x06, 0x07},	/* VSEN15 */
+	{0x06, 0x08},	/* VSEN16 */
+	{0x06, 0x09},	/* VSEN17 */
+};
+
+
+/* 3VDD, 3VSB, VBAT * 0.006 */
+#define REST_VLT_BEGIN			12  /* the 13th volt to 15th */
+#define REST_VLT_END			14  /* the 13th volt to 15th */
+
+#define W83795_REG_FAN(index)		(0x2E + (index))
+#define W83795_REG_FAN_MIN_HL(index)	(0xB6 + (index))
+#define W83795_REG_FAN_MIN_LSB(index)	(0xC4 + (index) / 2)
+#define W83795_REG_FAN_MIN_LSB_SHIFT(index) \
+	(((index) % 1) ? 4 : 0)
+#define W83795_REG_FAN_CTRL_SHIFT(index) \
+	(((index) > 7) ? ((index) - 8) : (index))
+
+#define W83795_REG_VID_CTRL		0x6A
+
+#define ALARM_BEEP_REG_NUM		6
+#define W83795_REG_ALARM(index)		(0x41 + (index))
+#define W83795_REG_BEEP(index)		(0x50 + (index))
+
+#define W83795_REG_CLR_CHASSIS		0x4D
+
+
+#define W83795_REG_TEMP_NUM		6
+#define W83795_REG_FCMS1		0x201
+#define W83795_REG_FCMS2		0x208
+#define W83795_REG_TFMR(index)		(0x202 + (index))
+#define W83795_REG_FOMC			0x20F
+#define W83795_REG_FOPFP(index)		(0x218 + (index))
+
+#define W83795_REG_TSS(index)		(0x209 + (index))
+
+#define PWM_OUTPUT			0
+#define PWM_START			1
+#define PWM_NONSTOP			2
+#define PWM_STOP_TIME			3
+#define PWM_DIV				4
+#define W83795_REG_PWM(index, nr) \
+	(((nr) == 0 ? 0x210 : \
+	  (nr) == 1 ? 0x220 : \
+	  (nr) == 2 ? 0x228 : \
+	  (nr) == 3 ? 0x230 : 0x218) + (index))
+
+#define W83795_REG_FOPFP_DIV(index) \
+	(((index) < 8) ? ((index) + 1) : \
+	 ((index) == 8) ? 12 : \
+	 (16 << ((index) - 9)))
+
+#define W83795_REG_FTSH(index)		(0x240 + (index) * 2)
+#define W83795_REG_FTSL(index)		(0x241 + (index) * 2)
+#define W83795_REG_TFTS			0x250
+
+#define TEMP_PWM_TTTI			0
+#define TEMP_PWM_CTFS			1
+#define TEMP_PWM_HCT			2
+#define TEMP_PWM_HOT			3
+#define W83795_REG_TTTI(index)		(0x260 + (index))
+#define W83795_REG_CTFS(index)		(0x268 + (index))
+#define W83795_REG_HT(index)		(0x270 + (index))
+
+#define SF4_TEMP			0
+#define SF4_PWM				1
+#define W83795_REG_SF4_TEMP(temp_num, index) \
+	(0x280 + 0x10 * (temp_num) + (index))
+#define W83795_REG_SF4_PWM(temp_num, index) \
+	(0x288 + 0x10 * (temp_num) + (index))
+
+#define W83795_REG_DTSC			0x301
+#define W83795_REG_DTSE			0x302
+#define W83795_REG_DTS(index)		(0x26 + (index))
+
+#define DTS_CRIT			0
+#define DTS_CRIT_HYST			1
+#define DTS_WARN			2
+#define DTS_WARN_HYST			3
+#define W83795_REG_DTS_EXT(index)	(0xB2 + (index))
+
+#define SETUP_PWM_DEFAULT		0
+#define SETUP_PWM_UPTIME		1
+#define SETUP_PWM_DOWNTIME		2
+#define W83795_REG_SETUP_PWM(index)    (0x20C + (index))
+
+static inline u16 in_from_reg(u8 index, u16 val)
+{
+	if ((index >= REST_VLT_BEGIN) && (index <= REST_VLT_END))
+		return val * 6;
+	else
+		return val * 2;
+}
+
+static inline u16 in_to_reg(u8 index, u16 val)
+{
+	if ((index >= REST_VLT_BEGIN) && (index <= REST_VLT_END))
+		return val / 6;
+	else
+		return val / 2;
+}
+
+static inline unsigned long fan_from_reg(u16 val)
+{
+	if ((val >= 0xff0) || (val == 0))
+		return 0;
+	return 1350000UL / val;
+}
+
+static inline u16 fan_to_reg(long rpm)
+{
+	if (rpm <= 0)
+		return 0x0fff;
+	return SENSORS_LIMIT((1350000 + (rpm >> 1)) / rpm, 1, 0xffe);
+}
+
+static inline unsigned long time_from_reg(u8 reg)
+{
+	return reg * 100;
+}
+
+static inline u8 time_to_reg(unsigned long val)
+{
+	return SENSORS_LIMIT((val + 50) / 100, 0, 0xff);
+}
+
+static inline long temp_from_reg(s8 reg)
+{
+	return reg * 1000;
+}
+
+static inline s8 temp_to_reg(long val, s8 min, s8 max)
+{
+	return SENSORS_LIMIT((val < 0 ? -val : val) / 1000, min, max);
+}
+
+
+enum chip_types {w83795g, w83795adg};
+
+struct w83795_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	unsigned long last_updated;	/* In jiffies */
+	enum chip_types chip_type;
+
+	u8 bank;
+
+	u32 has_in;		/* Enable monitor VIN or not */
+	u16 in[21][3];		/* Register value, read/high/low */
+	u8 in_lsb[10][3];	/* LSB Register value, high/low */
+	u8 has_gain;		/* has gain: in17-20 * 8 */
+
+	u16 has_fan;		/* Enable fan14-1 or not */
+	u16 fan[14];		/* Register value combine */
+	u16 fan_min[14];	/* Register value combine */
+
+	u8 has_temp;		/* Enable monitor temp6-1 or not */
+	u8 temp[6][5];		/* current, crit, crit_hyst, warn, warn_hyst */
+	u8 temp_read_vrlsb[6];
+	u8 temp_mode;		/* bit 0: TR mode, bit 1: TD mode */
+	u8 temp_src[3];		/* Register value */
+
+	u8 enable_dts;		/* Enable PECI and SB-TSI,
+				 * bit 0: =1 enable, =0 disable,
+				 * bit 1: =1 AMD SB-TSI, =0 Intel PECI */
+	u8 has_dts;		/* Enable monitor DTS temp */
+	u8 dts[8];		/* Register value */
+	u8 dts_read_vrlsb[8];	/* Register value */
+	u8 dts_ext[4];		/* Register value */
+
+	u8 has_pwm;		/* 795g supports 8 pwm, 795adg only supports 2,
+				 * no config register, only affected by chip
+				 * type */
+	u8 pwm[8][5];		/* Register value, output, start, non stop, stop
+				 * time, div */
+	u8 pwm_fcms[2];		/* Register value */
+	u8 pwm_tfmr[6];		/* Register value */
+	u8 pwm_fomc;		/* Register value */
+
+	u16 target_speed[8];	/* Register value, target speed for speed
+				 * cruise */
+	u8 tol_speed;		/* tolerance of target speed */
+	u8 pwm_temp[6][4];	/* TTTI, CTFS, HCT, HOT */
+	u8 sf4_reg[6][2][7];	/* 6 temp, temp/dcpwm, 7 registers */
+
+	u8 setup_pwm[3];	/* Register value */
+
+	u8 alarms[6];		/* Register value */
+	u8 beeps[6];		/* Register value */
+	u8 beep_enable;
+
+	char valid;
+};
+
+/*
+ * Hardware access
+ */
+
+/* Ignore the possibility that somebody change bank outside the driver
+ * Must be called with data->update_lock held, except during initialization */
+static u8 w83795_read(struct i2c_client *client, u16 reg)
+{
+	struct w83795_data *data = i2c_get_clientdata(client);
+	u8 res = 0xff;
+	u8 new_bank = reg >> 8;
+
+	new_bank |= data->bank & 0xfc;
+	if (data->bank != new_bank) {
+		if (i2c_smbus_write_byte_data
+		    (client, W83795_REG_BANKSEL, new_bank) >= 0)
+			data->bank = new_bank;
+		else {
+			dev_err(&client->dev,
+				"set bank to %d failed, fall back "
+				"to bank %d, read reg 0x%x error\n",
+				new_bank, data->bank, reg);
+			res = 0x0;	/* read 0x0 from the chip */
+			goto END;
+		}
+	}
+	res = i2c_smbus_read_byte_data(client, reg & 0xff);
+END:
+	return res;
+}
+
+/* Must be called with data->update_lock held, except during initialization */
+static int w83795_write(struct i2c_client *client, u16 reg, u8 value)
+{
+	struct w83795_data *data = i2c_get_clientdata(client);
+	int res;
+	u8 new_bank = reg >> 8;
+
+	new_bank |= data->bank & 0xfc;
+	if (data->bank != new_bank) {
+		res = i2c_smbus_write_byte_data(client, W83795_REG_BANKSEL,
+						new_bank);
+		if (res >= 0)
+			data->bank = new_bank;
+		else {
+			dev_err(&client->dev,
+				"set bank to %d failed, fall back "
+				"to bank %d, write reg 0x%x error\n",
+				new_bank, data->bank, reg);
+			goto END;
+		}
+	}
+
+	res = i2c_smbus_write_byte_data(client, reg & 0xff, value);
+END:
+	return res;
+}
+
+static struct w83795_data *w83795_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	u16 tmp;
+	int i;
+
+	mutex_lock(&data->update_lock);
+
+	if (!(time_after(jiffies, data->last_updated + HZ * 2)
+	      || !data->valid))
+		goto END;
+
+	/* Update the voltages value */
+	for (i = 0; i < ARRAY_SIZE(data->in); i++) {
+		if (!(data->has_in & (1 << i)))
+			continue;
+		tmp = w83795_read(client, W83795_REG_IN[i][IN_READ]) << 2;
+		tmp |= (w83795_read(client, W83795_REG_VRLSB)
+			>> VRLSB_SHIFT) & 0x03;
+		data->in[i][IN_READ] = tmp;
+	}
+
+	/* Update fan */
+	for (i = 0; i < ARRAY_SIZE(data->fan); i++) {
+		if (!(data->has_fan & (1 << i)))
+			continue;
+		data->fan[i] = w83795_read(client, W83795_REG_FAN(i)) << 4;
+		data->fan[i] |=
+		  (w83795_read(client, W83795_REG_VRLSB >> 4)) & 0x0F;
+	}
+
+	/* Update temperature */
+	for (i = 0; i < ARRAY_SIZE(data->temp); i++) {
+		/* even stop monitor, register still keep value, just read out
+		 * it */
+		if (!(data->has_temp & (1 << i))) {
+			data->temp[i][TEMP_READ] = 0;
+			data->temp_read_vrlsb[i] = 0;
+			continue;
+		}
+		data->temp[i][TEMP_READ] =
+			w83795_read(client, W83795_REG_TEMP[i][TEMP_READ]);
+		data->temp_read_vrlsb[i] =
+			w83795_read(client, W83795_REG_VRLSB);
+	}
+
+	/* Update dts temperature */
+	if (data->enable_dts != 0) {
+		for (i = 0; i < ARRAY_SIZE(data->dts); i++) {
+			if (!(data->has_dts & (1 << i)))
+				continue;
+			data->dts[i] =
+				w83795_read(client, W83795_REG_DTS(i));
+			data->dts_read_vrlsb[i] =
+				w83795_read(client, W83795_REG_VRLSB);
+		}
+	}
+
+	/* Update pwm output */
+	for (i = 0; i < data->has_pwm; i++) {
+		data->pwm[i][PWM_OUTPUT] =
+		    w83795_read(client, W83795_REG_PWM(i, PWM_OUTPUT));
+	}
+
+	/* update alarm */
+	for (i = 0; i < ALARM_BEEP_REG_NUM; i++)
+		data->alarms[i] = w83795_read(client, W83795_REG_ALARM(i));
+
+	data->last_updated = jiffies;
+	data->valid = 1;
+
+END:
+	mutex_unlock(&data->update_lock);
+	return data;
+}
+
+/*
+ * Sysfs attributes
+ */
+
+#define ALARM_STATUS      0
+#define BEEP_ENABLE       1
+static ssize_t
+show_alarm_beep(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83795_data *data = w83795_update_device(dev);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index >> 3;
+	int bit = sensor_attr->index & 0x07;
+	u8 val;
+
+	if (ALARM_STATUS == nr) {
+		val = (data->alarms[index] >> (bit)) & 1;
+	} else {		/* BEEP_ENABLE */
+		val = (data->beeps[index] >> (bit)) & 1;
+	}
+
+	return sprintf(buf, "%u\n", val);
+}
+
+static ssize_t
+store_beep(struct device *dev, struct device_attribute *attr,
+	   const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int index = sensor_attr->index >> 3;
+	int shift = sensor_attr->index & 0x07;
+	u8 beep_bit = 1 << shift;
+	unsigned long val;
+
+	if (strict_strtoul(buf, 10, &val) < 0)
+		return -EINVAL;
+	if (val != 0 && val != 1)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	data->beeps[index] = w83795_read(client, W83795_REG_BEEP(index));
+	data->beeps[index] &= ~beep_bit;
+	data->beeps[index] |= val << shift;
+	w83795_write(client, W83795_REG_BEEP(index), data->beeps[index]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t
+show_beep_enable(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	return sprintf(buf, "%u\n", data->beep_enable);
+}
+
+static ssize_t
+store_beep_enable(struct device *dev, struct device_attribute *attr,
+		  const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	unsigned long val;
+	u8 tmp;
+
+	if (strict_strtoul(buf, 10, &val) < 0)
+		return -EINVAL;
+	if (val != 0 && val != 1)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	data->beep_enable = val;
+	tmp = w83795_read(client, W83795_REG_BEEP(5));
+	tmp &= 0x7f;
+	tmp |= val << 7;
+	w83795_write(client, W83795_REG_BEEP(5), tmp);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/* Write any value to clear chassis alarm */
+static ssize_t
+store_chassis_clear(struct device *dev,
+		    struct device_attribute *attr, const char *buf,
+		    size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	u8 val;
+
+	mutex_lock(&data->update_lock);
+	val = w83795_read(client, W83795_REG_CLR_CHASSIS);
+	val |= 0x80;
+	w83795_write(client, W83795_REG_CLR_CHASSIS, val);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+#define FAN_INPUT     0
+#define FAN_MIN       1
+static ssize_t
+show_fan(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	struct w83795_data *data = w83795_update_device(dev);
+	u16 val;
+
+	if (FAN_INPUT == nr)
+		val = data->fan[index] & 0x0fff;
+	else
+		val = data->fan_min[index] & 0x0fff;
+
+	return sprintf(buf, "%lu\n", fan_from_reg(val));
+}
+
+static ssize_t
+store_fan_min(struct device *dev, struct device_attribute *attr,
+	      const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int index = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	unsigned long val;
+
+	if (strict_strtoul(buf, 10, &val))
+		return -EINVAL;
+	val = fan_to_reg(val);
+
+	mutex_lock(&data->update_lock);
+	data->fan_min[index] = val;
+	w83795_write(client, W83795_REG_FAN_MIN_HL(index), (val >> 4) & 0xff);
+	val &= 0x0f;
+	if (index % 1) {
+		val <<= 4;
+		val |= w83795_read(client, W83795_REG_FAN_MIN_LSB(index))
+		       & 0x0f;
+	} else {
+		val |= w83795_read(client, W83795_REG_FAN_MIN_LSB(index))
+		       & 0xf0;
+	}
+	w83795_write(client, W83795_REG_FAN_MIN_LSB(index), val & 0xff);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t
+show_pwm(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct w83795_data *data = w83795_update_device(dev);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	u16 val;
+
+	switch (nr) {
+	case PWM_STOP_TIME:
+		val = time_from_reg(data->pwm[index][nr]);
+		break;
+	case PWM_DIV:
+		val = W83795_REG_FOPFP_DIV(data->pwm[index][nr] & 0x0f);
+		break;
+	default:
+		val = data->pwm[index][nr];
+		break;
+	}
+
+	return sprintf(buf, "%u\n", val);
+}
+
+static ssize_t
+store_pwm(struct device *dev, struct device_attribute *attr,
+	  const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	unsigned long val;
+	int i;
+
+	if (strict_strtoul(buf, 10, &val) < 0)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	switch (nr) {
+	case PWM_STOP_TIME:
+		val = time_to_reg(val);
+		break;
+	case PWM_DIV:
+		for (i = 0; i < 16; i++) {
+			if (W83795_REG_FOPFP_DIV(i) == val) {
+				val = i;
+				break;
+			}
+		}
+		if (i >= 16)
+			goto err_end;
+		val |= w83795_read(client, W83795_REG_PWM(index, nr)) & 0x80;
+		break;
+	default:
+		val = SENSORS_LIMIT(val, 0, 0xff);
+		break;
+	}
+	w83795_write(client, W83795_REG_PWM(index, nr), val);
+	data->pwm[index][nr] = val & 0xff;
+	mutex_unlock(&data->update_lock);
+	return count;
+err_end:
+	mutex_unlock(&data->update_lock);
+	return -EINVAL;
+}
+
+static ssize_t
+show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	int index = sensor_attr->index;
+	u8 tmp;
+
+	if (1 == (data->pwm_fcms[0] & (1 << index))) {
+		tmp = 2;
+		goto out;
+	}
+	for (tmp = 0; tmp < 6; tmp++) {
+		if (data->pwm_tfmr[tmp] & (1 << index)) {
+			tmp = 3;
+			goto out;
+		}
+	}
+	if (data->pwm_fomc & (1 << index))
+		tmp = 0;
+	else
+		tmp = 1;
+
+out:
+	return sprintf(buf, "%u\n", tmp);
+}
+
+static ssize_t
+store_pwm_enable(struct device *dev, struct device_attribute *attr,
+	  const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int index = sensor_attr->index;
+	unsigned long val;
+	int i;
+
+	if (strict_strtoul(buf, 10, &val) < 0)
+		return -EINVAL;
+	if (val > 2)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	switch (val) {
+	case 0:
+	case 1:
+		data->pwm_fcms[0] &= ~(1 << index);
+		w83795_write(client, W83795_REG_FCMS1, data->pwm_fcms[0]);
+		for (i = 0; i < 6; i++) {
+			data->pwm_tfmr[i] &= ~(1 << index);
+			w83795_write(client, W83795_REG_TFMR(i),
+				data->pwm_tfmr[i]);
+		}
+		data->pwm_fomc |= 1 << index;
+		data->pwm_fomc ^= val << index;
+		w83795_write(client, W83795_REG_FOMC, data->pwm_fomc);
+		break;
+	case 2:
+		data->pwm_fcms[0] |= (1 << index);
+		w83795_write(client, W83795_REG_FCMS1, data->pwm_fcms[0]);
+		break;
+	}
+	mutex_unlock(&data->update_lock);
+	return count;
+
+	mutex_unlock(&data->update_lock);
+	return -EINVAL;
+}
+
+static ssize_t
+show_temp_src(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	int index = sensor_attr->index;
+	u8 val = index / 2;
+	u8 tmp = data->temp_src[val];
+
+	if (index % 1)
+		val = 4;
+	else
+		val = 0;
+	tmp >>= val;
+	tmp &= 0x0f;
+
+	return sprintf(buf, "%u\n", tmp);
+}
+
+static ssize_t
+store_temp_src(struct device *dev, struct device_attribute *attr,
+	  const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int index = sensor_attr->index;
+	unsigned long tmp;
+	u8 val = index / 2;
+
+	if (strict_strtoul(buf, 10, &tmp) < 0)
+		return -EINVAL;
+	tmp = SENSORS_LIMIT(tmp, 0, 15);
+
+	mutex_lock(&data->update_lock);
+	if (index % 1) {
+		tmp <<= 4;
+		data->temp_src[val] &= 0x0f;
+	} else {
+		data->temp_src[val] &= 0xf0;
+	}
+	data->temp_src[val] |= tmp;
+	w83795_write(client, W83795_REG_TSS(val), data->temp_src[val]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+#define TEMP_PWM_ENABLE   0
+#define TEMP_PWM_FAN_MAP  1
+static ssize_t
+show_temp_pwm_enable(struct device *dev, struct device_attribute *attr,
+		     char *buf)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	u8 tmp = 0xff;
+
+	switch (nr) {
+	case TEMP_PWM_ENABLE:
+		tmp = (data->pwm_fcms[1] >> index) & 1;
+		if (tmp)
+			tmp = 4;
+		else
+			tmp = 3;
+		break;
+	case TEMP_PWM_FAN_MAP:
+		tmp = data->pwm_tfmr[index];
+		break;
+	}
+
+	return sprintf(buf, "%u\n", tmp);
+}
+
+static ssize_t
+store_temp_pwm_enable(struct device *dev, struct device_attribute *attr,
+	  const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	unsigned long tmp;
+
+	if (strict_strtoul(buf, 10, &tmp) < 0)
+		return -EINVAL;
+
+	switch (nr) {
+	case TEMP_PWM_ENABLE:
+		if ((tmp != 3) && (tmp != 4))
+			return -EINVAL;
+		tmp -= 3;
+		mutex_lock(&data->update_lock);
+		data->pwm_fcms[1] &= ~(1 << index);
+		data->pwm_fcms[1] |= tmp << index;
+		w83795_write(client, W83795_REG_FCMS2, data->pwm_fcms[1]);
+		mutex_unlock(&data->update_lock);
+		break;
+	case TEMP_PWM_FAN_MAP:
+		mutex_lock(&data->update_lock);
+		tmp = SENSORS_LIMIT(tmp, 0, 0xff);
+		w83795_write(client, W83795_REG_TFMR(index), tmp);
+		data->pwm_tfmr[index] = tmp;
+		mutex_unlock(&data->update_lock);
+		break;
+	}
+	return count;
+}
+
+#define FANIN_TARGET   0
+#define FANIN_TOL      1
+static ssize_t
+show_fanin(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	u16 tmp = 0;
+
+	switch (nr) {
+	case FANIN_TARGET:
+		tmp = fan_from_reg(data->target_speed[index]);
+		break;
+	case FANIN_TOL:
+		tmp = data->tol_speed;
+		break;
+	}
+
+	return sprintf(buf, "%u\n", tmp);
+}
+
+static ssize_t
+store_fanin(struct device *dev, struct device_attribute *attr,
+	  const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	unsigned long val;
+
+	if (strict_strtoul(buf, 10, &val) < 0)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	switch (nr) {
+	case FANIN_TARGET:
+		val = fan_to_reg(SENSORS_LIMIT(val, 0, 0xfff));
+		w83795_write(client, W83795_REG_FTSH(index), (val >> 4) & 0xff);
+		w83795_write(client, W83795_REG_FTSL(index), (val << 4) & 0xf0);
+		data->target_speed[index] = val;
+		break;
+	case FANIN_TOL:
+		val = SENSORS_LIMIT(val, 0, 0x3f);
+		w83795_write(client, W83795_REG_TFTS, val);
+		data->tol_speed = val;
+		break;
+	}
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+
+static ssize_t
+show_temp_pwm(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	long tmp = temp_from_reg(data->pwm_temp[index][nr]);
+
+	return sprintf(buf, "%ld\n", tmp);
+}
+
+static ssize_t
+store_temp_pwm(struct device *dev, struct device_attribute *attr,
+	  const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	unsigned long val;
+	u8 tmp;
+
+	if (strict_strtoul(buf, 10, &val) < 0)
+		return -EINVAL;
+	val /= 1000;
+
+	mutex_lock(&data->update_lock);
+	switch (nr) {
+	case TEMP_PWM_TTTI:
+		val = SENSORS_LIMIT(val, 0, 0x7f);
+		w83795_write(client, W83795_REG_TTTI(index), val);
+		break;
+	case TEMP_PWM_CTFS:
+		val = SENSORS_LIMIT(val, 0, 0x7f);
+		w83795_write(client, W83795_REG_CTFS(index), val);
+		break;
+	case TEMP_PWM_HCT:
+		val = SENSORS_LIMIT(val, 0, 0x0f);
+		tmp = w83795_read(client, W83795_REG_HT(index));
+		tmp &= 0x0f;
+		tmp |= (val << 4) & 0xf0;
+		w83795_write(client, W83795_REG_HT(index), tmp);
+		break;
+	case TEMP_PWM_HOT:
+		val = SENSORS_LIMIT(val, 0, 0x0f);
+		tmp = w83795_read(client, W83795_REG_HT(index));
+		tmp &= 0xf0;
+		tmp |= val & 0x0f;
+		w83795_write(client, W83795_REG_HT(index), tmp);
+		break;
+	}
+	data->pwm_temp[index][nr] = val;
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t
+show_sf4_pwm(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+
+	return sprintf(buf, "%u\n", data->sf4_reg[index][SF4_PWM][nr]);
+}
+
+static ssize_t
+store_sf4_pwm(struct device *dev, struct device_attribute *attr,
+	  const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	unsigned long val;
+
+	if (strict_strtoul(buf, 10, &val) < 0)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	w83795_write(client, W83795_REG_SF4_PWM(index, nr), val);
+	data->sf4_reg[index][SF4_PWM][nr] = val;
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t
+show_sf4_temp(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+
+	return sprintf(buf, "%u\n",
+		(data->sf4_reg[index][SF4_TEMP][nr]) * 1000);
+}
+
+static ssize_t
+store_sf4_temp(struct device *dev, struct device_attribute *attr,
+	  const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	unsigned long val;
+
+	if (strict_strtoul(buf, 10, &val) < 0)
+		return -EINVAL;
+	val /= 1000;
+
+	mutex_lock(&data->update_lock);
+	w83795_write(client, W83795_REG_SF4_TEMP(index, nr), val);
+	data->sf4_reg[index][SF4_TEMP][nr] = val;
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+
+static ssize_t
+show_temp(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	struct w83795_data *data = w83795_update_device(dev);
+	long temp = temp_from_reg(data->temp[index][nr] & 0x7f);
+
+	if (TEMP_READ == nr)
+		temp += ((data->temp_read_vrlsb[index] >> VRLSB_SHIFT) & 0x03)
+			* 250;
+	if (data->temp[index][nr] & 0x80)
+		temp = -temp;
+	return sprintf(buf, "%ld\n", temp);
+}
+
+static ssize_t
+store_temp(struct device *dev, struct device_attribute *attr,
+	   const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	long tmp;
+
+	if (strict_strtol(buf, 10, &tmp) < 0)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	data->temp[index][nr] = temp_to_reg(tmp, -128, 127);
+	w83795_write(client, W83795_REG_TEMP[index][nr], data->temp[index][nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+
+static ssize_t
+show_dts_mode(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int index = sensor_attr->index;
+	u8 tmp;
+
+	if (data->enable_dts == 0)
+		return sprintf(buf, "%d\n", 0);
+
+	if ((data->has_dts >> index) & 0x01) {
+		if (data->enable_dts & 2)
+			tmp = 5;
+		else
+			tmp = 6;
+	} else {
+		tmp = 0;
+	}
+
+	return sprintf(buf, "%d\n", tmp);
+}
+
+static ssize_t
+show_dts(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int index = sensor_attr->index;
+	struct w83795_data *data = w83795_update_device(dev);
+	long temp = temp_from_reg(data->dts[index] & 0x7f);
+
+	temp += ((data->dts_read_vrlsb[index] >> VRLSB_SHIFT) & 0x03) * 250;
+	if (data->dts[index] & 0x80)
+		temp = -temp;
+	return sprintf(buf, "%ld\n", temp);
+}
+
+static ssize_t
+show_dts_ext(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	long temp = temp_from_reg(data->dts_ext[nr] & 0x7f);
+
+	if (data->dts_ext[nr] & 0x80)
+		temp = -temp;
+	return sprintf(buf, "%ld\n", temp);
+}
+
+static ssize_t
+store_dts_ext(struct device *dev, struct device_attribute *attr,
+	   const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	long tmp;
+
+	if (strict_strtol(buf, 10, &tmp) < 0)
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	data->dts_ext[nr] = temp_to_reg(tmp, -128, 127);
+	w83795_write(client, W83795_REG_DTS_EXT(nr), data->dts_ext[nr]);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+
+/*
+	Type 3:  Thermal diode
+	Type 4:  Thermistor
+
+	Temp5-6, default TR
+	Temp1-4, default TD
+*/
+
+static ssize_t
+show_temp_mode(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int index = sensor_attr->index;
+	u8 tmp;
+
+	if (data->has_temp >> index & 0x01) {
+		if (data->temp_mode >> index & 0x01)
+			tmp = 3;
+		else
+			tmp = 4;
+	} else {
+		tmp = 0;
+	}
+
+	return sprintf(buf, "%d\n", tmp);
+}
+
+static ssize_t
+store_temp_mode(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int index = sensor_attr->index;
+	unsigned long val;
+	u8 tmp;
+	u32 mask;
+
+	if (strict_strtoul(buf, 10, &val) < 0)
+		return -EINVAL;
+	if ((val != 4) && (val != 3))
+		return -EINVAL;
+	if ((index > 3) && (val == 3))
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	if (val == 3) {
+		val = TEMP_CTRL_TD;
+		data->has_temp |= 1 << index;
+		data->temp_mode |= 1 << index;
+	} else if (val == 4) {
+		val = TEMP_CTRL_TR;
+		data->has_temp |= 1 << index;
+		tmp = 1 << index;
+		data->temp_mode &= ~tmp;
+	}
+
+	if (index > 3)
+		tmp = w83795_read(client, W83795_REG_TEMP_CTRL1);
+	else
+		tmp = w83795_read(client, W83795_REG_TEMP_CTRL2);
+
+	mask = 0x03 << W83795_REG_TEMP_CTRL[index][TEMP_CTRL_SHIFT];
+	tmp &= ~mask;
+	tmp |= W83795_REG_TEMP_CTRL[index][val];
+
+	mask = 1 << W83795_REG_TEMP_CTRL[index][TEMP_CTRL_HASIN_SHIFT];
+	data->has_in &= ~mask;
+
+	if (index > 3)
+		w83795_write(client, W83795_REG_TEMP_CTRL1, tmp);
+	else
+		w83795_write(client, W83795_REG_TEMP_CTRL2, tmp);
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+
+/* show/store VIN */
+static ssize_t
+show_in(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	struct w83795_data *data = w83795_update_device(dev);
+	u16 val = data->in[index][nr];
+	u8 lsb_idx;
+
+	switch (nr) {
+	case IN_READ:
+		/* calculate this value again by sensors as sensors3.conf */
+		if ((index >= 17) &&
+		    ((data->has_gain >> (index - 17)) & 1))
+			val *= 8;
+		break;
+	case IN_MAX:
+	case IN_LOW:
+		lsb_idx = IN_LSB_SHIFT_IDX[index][IN_LSB_IDX];
+		val <<= 2;
+		val |= (data->in_lsb[lsb_idx][nr] >>
+			IN_LSB_SHIFT_IDX[lsb_idx][IN_LSB_SHIFT]) & 0x03;
+		if ((index >= 17) &&
+		    ((data->has_gain >> (index - 17)) & 1))
+			val *= 8;
+		break;
+	}
+	val = in_from_reg(index, val);
+
+	return sprintf(buf, "%d\n", val);
+}
+
+static ssize_t
+store_in(struct device *dev, struct device_attribute *attr,
+	 const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	unsigned long val;
+	u8 tmp;
+	u8 lsb_idx;
+
+	if (strict_strtoul(buf, 10, &val) < 0)
+		return -EINVAL;
+	val = in_to_reg(index, val);
+
+	if ((index >= 17) &&
+	    ((data->has_gain >> (index - 17)) & 1))
+		val /= 8;
+	val = SENSORS_LIMIT(val, 0, 0x3FF);
+	mutex_lock(&data->update_lock);
+
+	lsb_idx = IN_LSB_SHIFT_IDX[index][IN_LSB_IDX];
+	tmp = w83795_read(client, IN_LSB_REG(lsb_idx, nr));
+	tmp &= ~(0x03 << IN_LSB_SHIFT_IDX[index][IN_LSB_SHIFT]);
+	tmp |= (val & 0x03) << IN_LSB_SHIFT_IDX[index][IN_LSB_SHIFT];
+	w83795_write(client, IN_LSB_REG(lsb_idx, nr), tmp);
+	data->in_lsb[lsb_idx][nr] = tmp;
+
+	tmp = (val >> 2) & 0xff;
+	w83795_write(client, W83795_REG_IN[index][nr], tmp);
+	data->in[index][nr] = tmp;
+
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+
+static ssize_t
+show_sf_setup(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	u16 val = data->setup_pwm[nr];
+
+	switch (nr) {
+	case SETUP_PWM_UPTIME:
+	case SETUP_PWM_DOWNTIME:
+		val = time_from_reg(val);
+		break;
+	}
+
+	return sprintf(buf, "%d\n", val);
+}
+
+static ssize_t
+store_sf_setup(struct device *dev, struct device_attribute *attr,
+	 const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83795_data *data = i2c_get_clientdata(client);
+	unsigned long val;
+
+	if (strict_strtoul(buf, 10, &val) < 0)
+		return -EINVAL;
+
+	switch (nr) {
+	case SETUP_PWM_DEFAULT:
+		val = SENSORS_LIMIT(val, 0, 0xff);
+		break;
+	case SETUP_PWM_UPTIME:
+	case SETUP_PWM_DOWNTIME:
+		val = time_to_reg(val);
+		if (val == 0)
+			return -EINVAL;
+		break;
+	}
+
+	mutex_lock(&data->update_lock);
+	data->setup_pwm[nr] = val;
+	w83795_write(client, W83795_REG_SETUP_PWM(nr), val);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+
+#define NOT_USED			-1
+
+#define SENSOR_ATTR_IN(index)		\
+	SENSOR_ATTR_2(in##index##_input, S_IRUGO, show_in, NULL,	\
+		IN_READ, index), \
+	SENSOR_ATTR_2(in##index##_max, S_IRUGO | S_IWUSR, show_in,	\
+		store_in, IN_MAX, index),				\
+	SENSOR_ATTR_2(in##index##_min, S_IRUGO | S_IWUSR, show_in,	\
+		store_in, IN_LOW, index),				\
+	SENSOR_ATTR_2(in##index##_alarm, S_IRUGO, show_alarm_beep,	\
+		NULL, ALARM_STATUS, index + ((index > 14) ? 1 : 0)), \
+	SENSOR_ATTR_2(in##index##_beep, S_IWUSR | S_IRUGO,		\
+		show_alarm_beep, store_beep, BEEP_ENABLE,		\
+		index + ((index > 14) ? 1 : 0))
+
+#define SENSOR_ATTR_FAN(index)						\
+	SENSOR_ATTR_2(fan##index##_input, S_IRUGO, show_fan,		\
+		NULL, FAN_INPUT, index - 1), \
+	SENSOR_ATTR_2(fan##index##_min, S_IWUSR | S_IRUGO,		\
+		show_fan, store_fan_min, FAN_MIN, index - 1),	\
+	SENSOR_ATTR_2(fan##index##_alarm, S_IRUGO, show_alarm_beep,	\
+		NULL, ALARM_STATUS, index + 31),			\
+	SENSOR_ATTR_2(fan##index##_beep, S_IWUSR | S_IRUGO,		\
+		show_alarm_beep, store_beep, BEEP_ENABLE, index + 31)
+
+#define SENSOR_ATTR_PWM(index)						\
+	SENSOR_ATTR_2(pwm##index, S_IWUSR | S_IRUGO, show_pwm,		\
+		store_pwm, PWM_OUTPUT, index - 1),			\
+	SENSOR_ATTR_2(pwm##index##_nonstop, S_IWUSR | S_IRUGO,		\
+		show_pwm, store_pwm, PWM_NONSTOP, index - 1),		\
+	SENSOR_ATTR_2(pwm##index##_start, S_IWUSR | S_IRUGO,		\
+		show_pwm, store_pwm, PWM_START, index - 1),		\
+	SENSOR_ATTR_2(pwm##index##_stop_time, S_IWUSR | S_IRUGO,	\
+		show_pwm, store_pwm, PWM_STOP_TIME, index - 1),	 \
+	SENSOR_ATTR_2(fan##index##_div, S_IWUSR | S_IRUGO,	\
+		show_pwm, store_pwm, PWM_DIV, index - 1),	 \
+	SENSOR_ATTR_2(pwm##index##_enable, S_IWUSR | S_IRUGO,		\
+		show_pwm_enable, store_pwm_enable, NOT_USED, index - 1)
+
+#define SENSOR_ATTR_FANIN_TARGET(index)					\
+	SENSOR_ATTR_2(speed_cruise##index##_target, S_IWUSR | S_IRUGO, \
+		show_fanin, store_fanin, FANIN_TARGET, index - 1)
+
+#define SENSOR_ATTR_DTS(index)						\
+	SENSOR_ATTR_2(temp##index##_type, S_IRUGO ,		\
+		show_dts_mode, NULL, NOT_USED, index - 7),	\
+	SENSOR_ATTR_2(temp##index##_input, S_IRUGO, show_dts,		\
+		NULL, NOT_USED, index - 7),				\
+	SENSOR_ATTR_2(temp##index##_max, S_IRUGO | S_IWUSR, show_dts_ext, \
+		store_dts_ext, DTS_CRIT, NOT_USED),			\
+	SENSOR_ATTR_2(temp##index##_max_hyst, S_IRUGO | S_IWUSR,	\
+		show_dts_ext, store_dts_ext, DTS_CRIT_HYST, NOT_USED),	\
+	SENSOR_ATTR_2(temp##index##_warn, S_IRUGO | S_IWUSR, show_dts_ext, \
+		store_dts_ext, DTS_WARN, NOT_USED),			\
+	SENSOR_ATTR_2(temp##index##_warn_hyst, S_IRUGO | S_IWUSR,	\
+		show_dts_ext, store_dts_ext, DTS_WARN_HYST, NOT_USED),	\
+	SENSOR_ATTR_2(temp##index##_alarm, S_IRUGO,			\
+		show_alarm_beep, NULL, ALARM_STATUS, index + 17),	\
+	SENSOR_ATTR_2(temp##index##_beep, S_IWUSR | S_IRUGO,		\
+		show_alarm_beep, store_beep, BEEP_ENABLE, index + 17)
+
+#define SENSOR_ATTR_TEMP(index)						\
+	SENSOR_ATTR_2(temp##index##_type, S_IRUGO | S_IWUSR,		\
+		show_temp_mode, store_temp_mode, NOT_USED, index - 1),	\
+	SENSOR_ATTR_2(temp##index##_input, S_IRUGO, show_temp,		\
+		NULL, TEMP_READ, index - 1),				\
+	SENSOR_ATTR_2(temp##index##_max, S_IRUGO | S_IWUSR, show_temp,	\
+		store_temp, TEMP_CRIT, index - 1),			\
+	SENSOR_ATTR_2(temp##index##_max_hyst, S_IRUGO | S_IWUSR,	\
+		show_temp, store_temp, TEMP_CRIT_HYST, index - 1),	\
+	SENSOR_ATTR_2(temp##index##_warn, S_IRUGO | S_IWUSR, show_temp,	\
+		store_temp, TEMP_WARN, index - 1),			\
+	SENSOR_ATTR_2(temp##index##_warn_hyst, S_IRUGO | S_IWUSR,	\
+		show_temp, store_temp, TEMP_WARN_HYST, index - 1),	\
+	SENSOR_ATTR_2(temp##index##_alarm, S_IRUGO,			\
+		show_alarm_beep, NULL, ALARM_STATUS,			\
+		index + (index > 4 ? 11 : 17)),				\
+	SENSOR_ATTR_2(temp##index##_beep, S_IWUSR | S_IRUGO,		\
+		show_alarm_beep, store_beep, BEEP_ENABLE,		\
+		index + (index > 4 ? 11 : 17)),				\
+	SENSOR_ATTR_2(temp##index##_source_sel, S_IWUSR | S_IRUGO,	\
+		show_temp_src, store_temp_src, NOT_USED, index - 1),	\
+	SENSOR_ATTR_2(temp##index##_pwm_enable, S_IWUSR | S_IRUGO,	\
+		show_temp_pwm_enable, store_temp_pwm_enable,		\
+		TEMP_PWM_ENABLE, index - 1),				\
+	SENSOR_ATTR_2(temp##index##_auto_channels_pwm, S_IWUSR | S_IRUGO, \
+		show_temp_pwm_enable, store_temp_pwm_enable,		\
+		TEMP_PWM_FAN_MAP, index - 1),				\
+	SENSOR_ATTR_2(thermal_cruise##index, S_IWUSR | S_IRUGO,		\
+		show_temp_pwm, store_temp_pwm, TEMP_PWM_TTTI, index - 1), \
+	SENSOR_ATTR_2(temp##index##_crit, S_IWUSR | S_IRUGO,		\
+		show_temp_pwm, store_temp_pwm, TEMP_PWM_CTFS, index - 1), \
+	SENSOR_ATTR_2(temp##index##_crit_hyst, S_IWUSR | S_IRUGO,	\
+		show_temp_pwm, store_temp_pwm, TEMP_PWM_HCT, index - 1), \
+	SENSOR_ATTR_2(temp##index##_operation_hyst, S_IWUSR | S_IRUGO,	\
+		show_temp_pwm, store_temp_pwm, TEMP_PWM_HOT, index - 1), \
+	SENSOR_ATTR_2(temp##index##_auto_point1_pwm, S_IRUGO | S_IWUSR, \
+		show_sf4_pwm, store_sf4_pwm, 0, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point2_pwm, S_IRUGO | S_IWUSR, \
+		show_sf4_pwm, store_sf4_pwm, 1, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point3_pwm, S_IRUGO | S_IWUSR, \
+		show_sf4_pwm, store_sf4_pwm, 2, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point4_pwm, S_IRUGO | S_IWUSR, \
+		show_sf4_pwm, store_sf4_pwm, 3, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point5_pwm, S_IRUGO | S_IWUSR, \
+		show_sf4_pwm, store_sf4_pwm, 4, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point6_pwm, S_IRUGO | S_IWUSR, \
+		show_sf4_pwm, store_sf4_pwm, 5, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point7_pwm, S_IRUGO | S_IWUSR, \
+		show_sf4_pwm, store_sf4_pwm, 6, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point1_temp, S_IRUGO | S_IWUSR,\
+		show_sf4_temp, store_sf4_temp, 0, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point2_temp, S_IRUGO | S_IWUSR,\
+		show_sf4_temp, store_sf4_temp, 1, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point3_temp, S_IRUGO | S_IWUSR,\
+		show_sf4_temp, store_sf4_temp, 2, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point4_temp, S_IRUGO | S_IWUSR,\
+		show_sf4_temp, store_sf4_temp, 3, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point5_temp, S_IRUGO | S_IWUSR,\
+		show_sf4_temp, store_sf4_temp, 4, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point6_temp, S_IRUGO | S_IWUSR,\
+		show_sf4_temp, store_sf4_temp, 5, index - 1),		\
+	SENSOR_ATTR_2(temp##index##_auto_point7_temp, S_IRUGO | S_IWUSR,\
+		show_sf4_temp, store_sf4_temp, 6, index - 1)
+
+
+static struct sensor_device_attribute_2 w83795_in[] = {
+	SENSOR_ATTR_IN(0),
+	SENSOR_ATTR_IN(1),
+	SENSOR_ATTR_IN(2),
+	SENSOR_ATTR_IN(3),
+	SENSOR_ATTR_IN(4),
+	SENSOR_ATTR_IN(5),
+	SENSOR_ATTR_IN(6),
+	SENSOR_ATTR_IN(7),
+	SENSOR_ATTR_IN(8),
+	SENSOR_ATTR_IN(9),
+	SENSOR_ATTR_IN(10),
+	SENSOR_ATTR_IN(11),
+	SENSOR_ATTR_IN(12),
+	SENSOR_ATTR_IN(13),
+	SENSOR_ATTR_IN(14),
+	SENSOR_ATTR_IN(15),
+	SENSOR_ATTR_IN(16),
+	SENSOR_ATTR_IN(17),
+	SENSOR_ATTR_IN(18),
+	SENSOR_ATTR_IN(19),
+	SENSOR_ATTR_IN(20),
+};
+
+static struct sensor_device_attribute_2 w83795_fan[] = {
+	SENSOR_ATTR_FAN(1),
+	SENSOR_ATTR_FAN(2),
+	SENSOR_ATTR_FAN(3),
+	SENSOR_ATTR_FAN(4),
+	SENSOR_ATTR_FAN(5),
+	SENSOR_ATTR_FAN(6),
+	SENSOR_ATTR_FAN(7),
+	SENSOR_ATTR_FAN(8),
+	SENSOR_ATTR_FAN(9),
+	SENSOR_ATTR_FAN(10),
+	SENSOR_ATTR_FAN(11),
+	SENSOR_ATTR_FAN(12),
+	SENSOR_ATTR_FAN(13),
+	SENSOR_ATTR_FAN(14),
+};
+
+static struct sensor_device_attribute_2 w83795_temp[] = {
+	SENSOR_ATTR_TEMP(1),
+	SENSOR_ATTR_TEMP(2),
+	SENSOR_ATTR_TEMP(3),
+	SENSOR_ATTR_TEMP(4),
+	SENSOR_ATTR_TEMP(5),
+	SENSOR_ATTR_TEMP(6),
+};
+
+static struct sensor_device_attribute_2 w83795_dts[] = {
+	SENSOR_ATTR_DTS(7),
+	SENSOR_ATTR_DTS(8),
+	SENSOR_ATTR_DTS(9),
+	SENSOR_ATTR_DTS(10),
+	SENSOR_ATTR_DTS(11),
+	SENSOR_ATTR_DTS(12),
+	SENSOR_ATTR_DTS(13),
+	SENSOR_ATTR_DTS(14),
+};
+
+static struct sensor_device_attribute_2 w83795_static[] = {
+	SENSOR_ATTR_FANIN_TARGET(1),
+	SENSOR_ATTR_FANIN_TARGET(2),
+	SENSOR_ATTR_FANIN_TARGET(3),
+	SENSOR_ATTR_FANIN_TARGET(4),
+	SENSOR_ATTR_FANIN_TARGET(5),
+	SENSOR_ATTR_FANIN_TARGET(6),
+	SENSOR_ATTR_FANIN_TARGET(7),
+	SENSOR_ATTR_FANIN_TARGET(8),
+	SENSOR_ATTR_PWM(1),
+	SENSOR_ATTR_PWM(2),
+};
+
+/* all registers existed in 795g than 795adg,
+ * like PWM3 - PWM8 */
+static struct sensor_device_attribute_2 w83795_left_reg[] = {
+	SENSOR_ATTR_PWM(3),
+	SENSOR_ATTR_PWM(4),
+	SENSOR_ATTR_PWM(5),
+	SENSOR_ATTR_PWM(6),
+	SENSOR_ATTR_PWM(7),
+	SENSOR_ATTR_PWM(8),
+};
+
+static struct sensor_device_attribute_2 sda_single_files[] = {
+	SENSOR_ATTR_2(chassis, S_IWUSR | S_IRUGO, show_alarm_beep,
+		      store_chassis_clear, ALARM_STATUS, 46),
+	SENSOR_ATTR_2(beep_enable, S_IWUSR | S_IRUGO, show_beep_enable,
+		      store_beep_enable, NOT_USED, NOT_USED),
+	SENSOR_ATTR_2(speed_cruise_tolerance, S_IWUSR | S_IRUGO, show_fanin,
+		store_fanin, FANIN_TOL, NOT_USED),
+	SENSOR_ATTR_2(pwm_default, S_IWUSR | S_IRUGO, show_sf_setup,
+		      store_sf_setup, SETUP_PWM_DEFAULT, NOT_USED),
+	SENSOR_ATTR_2(pwm_uptime, S_IWUSR | S_IRUGO, show_sf_setup,
+		      store_sf_setup, SETUP_PWM_UPTIME, NOT_USED),
+	SENSOR_ATTR_2(pwm_downtime, S_IWUSR | S_IRUGO, show_sf_setup,
+		      store_sf_setup, SETUP_PWM_DOWNTIME, NOT_USED),
+};
+
+/*
+ * Driver interface
+ */
+
+static void w83795_init_client(struct i2c_client *client)
+{
+	if (reset)
+		w83795_write(client, W83795_REG_CONFIG, 0x80);
+
+	/* Start monitoring */
+	w83795_write(client, W83795_REG_CONFIG,
+		     w83795_read(client, W83795_REG_CONFIG) | 0x01);
+}
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int w83795_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info)
+{
+	u8 tmp, bank;
+	struct i2c_adapter *adapter = client->adapter;
+	unsigned short address = client->addr;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+	bank = i2c_smbus_read_byte_data(client, W83795_REG_BANKSEL);
+
+	tmp = bank & 0x80 ? 0x5c : 0xa3;
+	/* Check Nuvoton vendor ID */
+	if (tmp != i2c_smbus_read_byte_data(client,
+						W83795_REG_VENDORID)) {
+		pr_debug("w83795: Detection failed at check "
+			 "vendor id\n");
+		return -ENODEV;
+	}
+
+	/* If Nuvoton chip, address of chip and W83795_REG_I2C_ADDR
+	   should match */
+	if ((bank & 0x07) == 0
+	 && (i2c_smbus_read_byte_data(client, W83795_REG_I2C_ADDR) & 0x7f) !=
+	    address) {
+		pr_debug("w83795: Detection failed at check "
+			 "i2c addr\n");
+		return -ENODEV;
+	}
+
+	/* Determine the chip type now */
+	if (0x79 != i2c_smbus_read_byte_data(client,
+					     W83795_REG_CHIPID)) {
+		pr_debug("w83795: Detection failed at check "
+			 "chip id\n");
+		return -ENODEV;
+	}
+
+#if 0
+	/* Check 795 chip type: 795G or 795ADG */
+	if (W83795_REG_CONFIG_CONFIG48 &
+		  w83795_read(client, W83795_REG_CONFIG)) {
+		data->chip_type = w83795adg;
+	} else {
+		data->chip_type = w83795g;
+	}
+#endif
+
+	/* Fill in the remaining client fields and put into the global list */
+	strlcpy(info->type, "w83795", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int w83795_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	int i;
+	u8 tmp;
+	struct device *dev = &client->dev;
+	struct w83795_data *data;
+	int err = 0;
+
+	data = kzalloc(sizeof(struct w83795_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	data->bank = i2c_smbus_read_byte_data(client, W83795_REG_BANKSEL);
+	mutex_init(&data->update_lock);
+
+	/* Initialize the chip */
+	w83795_init_client(client);
+
+	/* Check 795 chip type: 795G or 795ADG */
+	if (W83795_REG_CONFIG_CONFIG48 &
+		  w83795_read(client, W83795_REG_CONFIG)) {
+		data->chip_type = w83795adg;
+	} else {
+		data->chip_type = w83795g;
+	}
+
+	data->has_in = w83795_read(client, W83795_REG_VOLT_CTRL1);
+	data->has_in |= w83795_read(client, W83795_REG_VOLT_CTRL2) << 8;
+	/* VSEN11-9 not for 795adg */
+	if (data->chip_type == w83795adg)
+		data->has_in &= 0xf8ff;
+	data->has_fan = w83795_read(client, W83795_REG_FANIN_CTRL1);
+	data->has_fan |= w83795_read(client, W83795_REG_FANIN_CTRL2) << 8;
+
+	/* VDSEN12-17 and TR1-6, TD1-4 use same register */
+	tmp = w83795_read(client, W83795_REG_TEMP_CTRL1);
+	if (tmp & 0x20)
+		data->enable_dts = 1;
+	else
+		data->enable_dts = 0;
+	data->has_temp = 0;
+	data->temp_mode = 0;
+	if (tmp & 0x08) {
+		if (tmp & 0x04)
+			data->has_temp |= 0x20;
+		else
+			data->has_in |= 0x10000;
+	}
+	if (tmp & 0x02) {
+		if (tmp & 0x01)
+			data->has_temp |= 0x10;
+		else
+			data->has_in |= 0x8000;
+	}
+	tmp = w83795_read(client, W83795_REG_TEMP_CTRL2);
+	if (tmp & 0x40) {
+		data->has_temp |= 0x08;
+		if (!(tmp & 0x80))
+			data->temp_mode |= 0x08;
+	} else if (tmp & 0x80) {
+		data->has_in |= 0x100000;
+	}
+	if (tmp & 0x10) {
+		data->has_temp |= 0x04;
+		if (!(tmp & 0x20))
+			data->temp_mode |= 0x04;
+	} else if (tmp & 0x20) {
+		data->has_in |= 0x80000;
+	}
+	if (tmp & 0x04) {
+		data->has_temp |= 0x02;
+		if (!(tmp & 0x08))
+			data->temp_mode |= 0x02;
+	} else if (tmp & 0x08) {
+		data->has_in |= 0x40000;
+	}
+	if (tmp & 0x01) {
+		data->has_temp |= 0x01;
+		if (!(tmp & 0x02))
+			data->temp_mode |= 0x01;
+	} else if (tmp & 0x02) {
+		data->has_in |= 0x20000;
+	}
+
+	/* Check DTS enable status */
+	if (data->enable_dts == 0) {
+		data->has_dts = 0;
+	} else {
+		if (1 & w83795_read(client, W83795_REG_DTSC))
+			data->enable_dts |= 2;
+		data->has_dts = w83795_read(client, W83795_REG_DTSE);
+	}
+
+	/* First update the voltages measured value and limits */
+	for (i = 0; i < ARRAY_SIZE(data->in); i++) {
+		if (!(data->has_in & (1 << i)))
+			continue;
+		data->in[i][IN_MAX] =
+			w83795_read(client, W83795_REG_IN[i][IN_MAX]);
+		data->in[i][IN_LOW] =
+			w83795_read(client, W83795_REG_IN[i][IN_LOW]);
+		tmp = w83795_read(client, W83795_REG_IN[i][IN_READ]) << 2;
+		tmp |= (w83795_read(client, W83795_REG_VRLSB)
+			>> VRLSB_SHIFT) & 0x03;
+		data->in[i][IN_READ] = tmp;
+	}
+	for (i = 0; i < IN_LSB_REG_NUM; i++) {
+		data->in_lsb[i][IN_MAX] =
+			w83795_read(client, IN_LSB_REG(i, IN_MAX));
+		data->in_lsb[i][IN_LOW] =
+			w83795_read(client, IN_LSB_REG(i, IN_LOW));
+	}
+	data->has_gain = w83795_read(client, W83795_REG_VMIGB_CTRL) & 0x0f;
+
+	/* First update fan and limits */
+	for (i = 0; i < ARRAY_SIZE(data->fan); i++) {
+		if (!(data->has_fan & (1 << i)))
+			continue;
+		data->fan_min[i] =
+			w83795_read(client, W83795_REG_FAN_MIN_HL(i)) << 4;
+		data->fan_min[i] |=
+		  (w83795_read(client, W83795_REG_FAN_MIN_LSB(i) >>
+			W83795_REG_FAN_MIN_LSB_SHIFT(i))) & 0x0F;
+		data->fan[i] = w83795_read(client, W83795_REG_FAN(i)) << 4;
+		data->fan[i] |=
+		  (w83795_read(client, W83795_REG_VRLSB >> 4)) & 0x0F;
+	}
+
+	/* temperature and limits */
+	for (i = 0; i < ARRAY_SIZE(data->temp); i++) {
+		if (!(data->has_temp & (1 << i)))
+			continue;
+		data->temp[i][TEMP_CRIT] =
+			w83795_read(client, W83795_REG_TEMP[i][TEMP_CRIT]);
+		data->temp[i][TEMP_CRIT_HYST] =
+			w83795_read(client, W83795_REG_TEMP[i][TEMP_CRIT_HYST]);
+		data->temp[i][TEMP_WARN] =
+			w83795_read(client, W83795_REG_TEMP[i][TEMP_WARN]);
+		data->temp[i][TEMP_WARN_HYST] =
+			w83795_read(client, W83795_REG_TEMP[i][TEMP_WARN_HYST]);
+		data->temp[i][TEMP_READ] =
+			w83795_read(client, W83795_REG_TEMP[i][TEMP_READ]);
+		data->temp_read_vrlsb[i] =
+			w83795_read(client, W83795_REG_VRLSB);
+	}
+
+	/* dts temperature and limits */
+	if (data->enable_dts != 0) {
+		data->dts_ext[DTS_CRIT] =
+			w83795_read(client, W83795_REG_DTS_EXT(DTS_CRIT));
+		data->dts_ext[DTS_CRIT_HYST] =
+			w83795_read(client, W83795_REG_DTS_EXT(DTS_CRIT_HYST));
+		data->dts_ext[DTS_WARN] =
+			w83795_read(client, W83795_REG_DTS_EXT(DTS_WARN));
+		data->dts_ext[DTS_WARN_HYST] =
+			w83795_read(client, W83795_REG_DTS_EXT(DTS_WARN_HYST));
+		for (i = 0; i < ARRAY_SIZE(data->dts); i++) {
+			if (!(data->has_dts & (1 << i)))
+				continue;
+			data->dts[i] = w83795_read(client, W83795_REG_DTS(i));
+			data->dts_read_vrlsb[i] =
+				w83795_read(client, W83795_REG_VRLSB);
+		}
+	}
+
+	/* First update temp source selction */
+	for (i = 0; i < 3; i++)
+		data->temp_src[i] = w83795_read(client, W83795_REG_TSS(i));
+
+	/* pwm and smart fan */
+	if (data->chip_type == w83795g)
+		data->has_pwm = 8;
+	else
+		data->has_pwm = 2;
+	data->pwm_fcms[0] = w83795_read(client, W83795_REG_FCMS1);
+	data->pwm_fcms[1] = w83795_read(client, W83795_REG_FCMS2);
+	/* w83795adg only support pwm2-0 */
+	for (i = 0; i < W83795_REG_TEMP_NUM; i++)
+		data->pwm_tfmr[i] = w83795_read(client, W83795_REG_TFMR(i));
+	data->pwm_fomc = w83795_read(client, W83795_REG_FOMC);
+	for (i = 0; i < data->has_pwm; i++) {
+		for (tmp = 0; tmp < 5; tmp++) {
+			data->pwm[i][tmp] =
+				w83795_read(client, W83795_REG_PWM(i, tmp));
+		}
+	}
+	for (i = 0; i < 8; i++) {
+		data->target_speed[i] =
+			w83795_read(client, W83795_REG_FTSH(i)) << 4;
+		data->target_speed[i] |=
+			w83795_read(client, W83795_REG_FTSL(i)) >> 4;
+	}
+	data->tol_speed = w83795_read(client, W83795_REG_TFTS) & 0x3f;
+
+	for (i = 0; i < W83795_REG_TEMP_NUM; i++) {
+		data->pwm_temp[i][TEMP_PWM_TTTI] =
+			w83795_read(client, W83795_REG_TTTI(i)) & 0x7f;
+		data->pwm_temp[i][TEMP_PWM_CTFS] =
+			w83795_read(client, W83795_REG_CTFS(i));
+		tmp = w83795_read(client, W83795_REG_HT(i));
+		data->pwm_temp[i][TEMP_PWM_HCT] = (tmp >> 4) & 0x0f;
+		data->pwm_temp[i][TEMP_PWM_HOT] = tmp & 0x0f;
+	}
+	for (i = 0; i < W83795_REG_TEMP_NUM; i++) {
+		for (tmp = 0; tmp < 7; tmp++) {
+			data->sf4_reg[i][SF4_TEMP][tmp] =
+				w83795_read(client,
+					    W83795_REG_SF4_TEMP(i, tmp));
+			data->sf4_reg[i][SF4_PWM][tmp] =
+				w83795_read(client, W83795_REG_SF4_PWM(i, tmp));
+		}
+	}
+
+	/* Setup PWM Register */
+	for (i = 0; i < 3; i++) {
+		data->setup_pwm[i] =
+			w83795_read(client, W83795_REG_SETUP_PWM(i));
+	}
+
+	/* alarm and beep */
+	for (i = 0; i < ALARM_BEEP_REG_NUM; i++) {
+		data->alarms[i] = w83795_read(client, W83795_REG_ALARM(i));
+		data->beeps[i] = w83795_read(client, W83795_REG_BEEP(i));
+	}
+	data->beep_enable =
+		(w83795_read(client, W83795_REG_BEEP(5)) >> 7) & 0x01;
+
+	/* Register sysfs hooks */
+	for (i = 0; i < ARRAY_SIZE(w83795_in); i++) {
+		if (!(data->has_in & (1 << (i / 6))))
+			continue;
+		err = device_create_file(dev, &w83795_in[i].dev_attr);
+		if (err)
+			goto exit_remove;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(w83795_fan); i++) {
+		if (!(data->has_fan & (1 << (i / 5))))
+			continue;
+		err = device_create_file(dev, &w83795_fan[i].dev_attr);
+		if (err)
+			goto exit_remove;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) {
+		err = device_create_file(dev, &sda_single_files[i].dev_attr);
+		if (err)
+			goto exit_remove;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(w83795_temp); i++) {
+		if (!(data->has_temp & (1 << (i / 29))))
+			continue;
+		err = device_create_file(dev, &w83795_temp[i].dev_attr);
+		if (err)
+			goto exit_remove;
+	}
+
+	if (data->enable_dts != 0) {
+		for (i = 0; i < ARRAY_SIZE(w83795_dts); i++) {
+			if (!(data->has_dts & (1 << (i / 8))))
+				continue;
+			err = device_create_file(dev, &w83795_dts[i].dev_attr);
+			if (err)
+				goto exit_remove;
+		}
+	}
+
+	if (data->chip_type == w83795g) {
+		for (i = 0; i < ARRAY_SIZE(w83795_left_reg); i++) {
+			err = device_create_file(dev,
+						 &w83795_left_reg[i].dev_attr);
+			if (err)
+				goto exit_remove;
+		}
+	}
+
+	for (i = 0; i < ARRAY_SIZE(w83795_static); i++) {
+		err = device_create_file(dev, &w83795_static[i].dev_attr);
+		if (err)
+			goto exit_remove;
+	}
+
+	data->hwmon_dev = hwmon_device_register(dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	return 0;
+
+	/* Unregister sysfs hooks */
+exit_remove:
+	for (i = 0; i < ARRAY_SIZE(w83795_in); i++)
+		device_remove_file(dev, &w83795_in[i].dev_attr);
+
+	for (i = 0; i < ARRAY_SIZE(w83795_fan); i++)
+		device_remove_file(dev, &w83795_fan[i].dev_attr);
+
+	for (i = 0; i < ARRAY_SIZE(sda_single_files); i++)
+		device_remove_file(dev, &sda_single_files[i].dev_attr);
+
+	if (data->chip_type == w83795g) {
+		for (i = 0; i < ARRAY_SIZE(w83795_left_reg); i++)
+			device_remove_file(dev, &w83795_left_reg[i].dev_attr);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(w83795_temp); i++)
+		device_remove_file(dev, &w83795_temp[i].dev_attr);
+
+	for (i = 0; i < ARRAY_SIZE(w83795_dts); i++)
+		device_remove_file(dev, &w83795_dts[i].dev_attr);
+
+	for (i = 0; i < ARRAY_SIZE(w83795_static); i++)
+		device_remove_file(dev, &w83795_static[i].dev_attr);
+
+	kfree(data);
+exit:
+	return err;
+}
+
+static int w83795_remove(struct i2c_client *client)
+{
+	struct w83795_data *data = i2c_get_clientdata(client);
+	struct device *dev = &client->dev;
+	int i;
+
+	hwmon_device_unregister(data->hwmon_dev);
+
+	for (i = 0; i < ARRAY_SIZE(w83795_in); i++)
+		device_remove_file(dev, &w83795_in[i].dev_attr);
+
+	for (i = 0; i < ARRAY_SIZE(w83795_fan); i++)
+		device_remove_file(dev, &w83795_fan[i].dev_attr);
+
+	for (i = 0; i < ARRAY_SIZE(sda_single_files); i++)
+		device_remove_file(dev, &sda_single_files[i].dev_attr);
+
+	if (data->chip_type == w83795g) {
+		for (i = 0; i < ARRAY_SIZE(w83795_left_reg); i++)
+			device_remove_file(dev, &w83795_left_reg[i].dev_attr);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(w83795_temp); i++)
+		device_remove_file(dev, &w83795_temp[i].dev_attr);
+
+	for (i = 0; i < ARRAY_SIZE(w83795_dts); i++)
+		device_remove_file(dev, &w83795_dts[i].dev_attr);
+
+	for (i = 0; i < ARRAY_SIZE(w83795_static); i++)
+		device_remove_file(dev, &w83795_static[i].dev_attr);
+
+	kfree(data);
+
+	return 0;
+}
+
+
+static const struct i2c_device_id w83795_id[] = {
+	{ "w83795", w83795 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, w83795_id);
+
+static struct i2c_driver w83795_driver = {
+	.driver = {
+		   .name = "w83795",
+	},
+	.probe		= w83795_probe,
+	.remove		= w83795_remove,
+	.id_table	= w83795_id,
+
+	.class		= I2C_CLASS_HWMON,
+	.detect		= w83795_detect,
+	.address_data	= &addr_data,
+};
+
+static int __init sensors_w83795_init(void)
+{
+	return i2c_add_driver(&w83795_driver);
+}
+
+static void __exit sensors_w83795_exit(void)
+{
+	i2c_del_driver(&w83795_driver);
+}
+
+MODULE_AUTHOR("Wei Song");
+MODULE_DESCRIPTION("w83795 driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_w83795_init);
+module_exit(sensors_w83795_exit);
diff --git a/drivers/hwmon/w83l785ts.c b/drivers/hwmon/w83l785ts.c
new file mode 100644
index 0000000..ea295b9
--- /dev/null
+++ b/drivers/hwmon/w83l785ts.c
@@ -0,0 +1,350 @@
+/*
+ * w83l785ts.c - Part of lm_sensors, Linux kernel modules for hardware
+ *               monitoring
+ * Copyright (C) 2003-2004  Jean Delvare <khali@linux-fr.org>
+ *
+ * Inspired from the lm83 driver. The W83L785TS-S is a sensor chip made
+ * by Winbond. It reports a single external temperature with a 1 deg
+ * resolution and a 3 deg accuracy. Datasheet can be obtained from
+ * Winbond's website at:
+ *   http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/W83L785TS-S.pdf
+ *
+ * Ported to Linux 2.6 by Wolfgang Ziegler <nuppla@gmx.at> and Jean Delvare
+ * <khali@linux-fr.org>.
+ *
+ * Thanks to James Bolt <james@evilpenguin.com> for benchmarking the read
+ * error handling mechanism.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+/* How many retries on register read error */
+#define MAX_RETRIES	5
+
+/*
+ * Address to scan
+ * Address is fully defined internally and cannot be changed.
+ */
+
+static const unsigned short normal_i2c[] = { 0x2e, I2C_CLIENT_END };
+
+/*
+ * Insmod parameters
+ */
+
+I2C_CLIENT_INSMOD_1(w83l785ts);
+
+/*
+ * The W83L785TS-S registers
+ * Manufacturer ID is 0x5CA3 for Winbond.
+ */
+
+#define W83L785TS_REG_MAN_ID1		0x4D
+#define W83L785TS_REG_MAN_ID2		0x4C
+#define W83L785TS_REG_CHIP_ID		0x4E
+#define W83L785TS_REG_CONFIG		0x40
+#define W83L785TS_REG_TYPE		0x52
+#define W83L785TS_REG_TEMP		0x27
+#define W83L785TS_REG_TEMP_OVER		0x53 /* not sure about this one */
+
+/*
+ * Conversions
+ * The W83L785TS-S uses signed 8-bit values.
+ */
+
+#define TEMP_FROM_REG(val)	((val) * 1000)
+
+/*
+ * Functions declaration
+ */
+
+static int w83l785ts_probe(struct i2c_client *client,
+			   const struct i2c_device_id *id);
+static int w83l785ts_detect(struct i2c_client *client, int kind,
+			    struct i2c_board_info *info);
+static int w83l785ts_remove(struct i2c_client *client);
+static u8 w83l785ts_read_value(struct i2c_client *client, u8 reg, u8 defval);
+static struct w83l785ts_data *w83l785ts_update_device(struct device *dev);
+
+/*
+ * Driver data (common to all clients)
+ */
+ 
+static const struct i2c_device_id w83l785ts_id[] = {
+	{ "w83l785ts", w83l785ts },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, w83l785ts_id);
+
+static struct i2c_driver w83l785ts_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "w83l785ts",
+	},
+	.probe		= w83l785ts_probe,
+	.remove		= w83l785ts_remove,
+	.id_table	= w83l785ts_id,
+	.detect		= w83l785ts_detect,
+	.address_data	= &addr_data,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct w83l785ts_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	char valid; /* zero until following fields are valid */
+	unsigned long last_updated; /* in jiffies */
+
+	/* registers values */
+	s8 temp[2]; /* 0: input
+		       1: critical limit */
+};
+
+/*
+ * Sysfs stuff
+ */
+
+static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
+	char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct w83l785ts_data *data = w83l785ts_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
+}
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_temp, NULL, 1);
+
+/*
+ * Real code
+ */
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int w83l785ts_detect(struct i2c_client *new_client, int kind,
+			    struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = new_client->adapter;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	/*
+	 * Now we do the remaining detection. A negative kind means that
+	 * the driver was loaded with no force parameter (default), so we
+	 * must both detect and identify the chip (actually there is only
+	 * one possible kind of chip for now, W83L785TS-S). A zero kind means
+	 * that the driver was loaded with the force parameter, the detection
+	 * step shall be skipped. A positive kind means that the driver
+	 * was loaded with the force parameter and a given kind of chip is
+	 * requested, so both the detection and the identification steps
+	 * are skipped.
+	 */
+	if (kind < 0) { /* detection */
+		if (((w83l785ts_read_value(new_client,
+		      W83L785TS_REG_CONFIG, 0) & 0x80) != 0x00)
+		 || ((w83l785ts_read_value(new_client,
+		      W83L785TS_REG_TYPE, 0) & 0xFC) != 0x00)) {
+			dev_dbg(&adapter->dev,
+				"W83L785TS-S detection failed at 0x%02x.\n",
+				new_client->addr);
+			return -ENODEV;
+		}
+	}
+
+	if (kind <= 0) { /* identification */
+		u16 man_id;
+		u8 chip_id;
+
+		man_id = (w83l785ts_read_value(new_client,
+			 W83L785TS_REG_MAN_ID1, 0) << 8) +
+			 w83l785ts_read_value(new_client,
+			 W83L785TS_REG_MAN_ID2, 0);
+		chip_id = w83l785ts_read_value(new_client,
+			  W83L785TS_REG_CHIP_ID, 0);
+
+		if (man_id == 0x5CA3) { /* Winbond */
+			if (chip_id == 0x70) { /* W83L785TS-S */
+				kind = w83l785ts;			
+			}
+		}
+	
+		if (kind <= 0) { /* identification failed */
+			dev_info(&adapter->dev,
+				 "Unsupported chip (man_id=0x%04X, "
+				 "chip_id=0x%02X).\n", man_id, chip_id);
+			return -ENODEV;
+		}
+	}
+
+	strlcpy(info->type, "w83l785ts", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int w83l785ts_probe(struct i2c_client *new_client,
+			   const struct i2c_device_id *id)
+{
+	struct w83l785ts_data *data;
+	int err = 0;
+
+	data = kzalloc(sizeof(struct w83l785ts_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(new_client, data);
+	data->valid = 0;
+	mutex_init(&data->update_lock);
+
+	/* Default values in case the first read fails (unlikely). */
+	data->temp[1] = data->temp[0] = 0;
+
+	/*
+	 * Initialize the W83L785TS chip
+	 * Nothing yet, assume it is already started.
+	 */
+
+	err = device_create_file(&new_client->dev,
+				 &sensor_dev_attr_temp1_input.dev_attr);
+	if (err)
+		goto exit_remove;
+
+	err = device_create_file(&new_client->dev,
+				 &sensor_dev_attr_temp1_max.dev_attr);
+	if (err)
+		goto exit_remove;
+
+	/* Register sysfs hooks */
+	data->hwmon_dev = hwmon_device_register(&new_client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	return 0;
+
+exit_remove:
+	device_remove_file(&new_client->dev,
+			   &sensor_dev_attr_temp1_input.dev_attr);
+	device_remove_file(&new_client->dev,
+			   &sensor_dev_attr_temp1_max.dev_attr);
+	kfree(data);
+exit:
+	return err;
+}
+
+static int w83l785ts_remove(struct i2c_client *client)
+{
+	struct w83l785ts_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	device_remove_file(&client->dev,
+			   &sensor_dev_attr_temp1_input.dev_attr);
+	device_remove_file(&client->dev,
+			   &sensor_dev_attr_temp1_max.dev_attr);
+
+	kfree(data);
+	return 0;
+}
+
+static u8 w83l785ts_read_value(struct i2c_client *client, u8 reg, u8 defval)
+{
+	int value, i;
+	struct device *dev;
+	const char *prefix;
+
+	/* We might be called during detection, at which point the client
+	   isn't yet fully initialized, so we can't use dev_dbg on it */
+	if (i2c_get_clientdata(client)) {
+		dev = &client->dev;
+		prefix = "";
+	} else {
+		dev = &client->adapter->dev;
+		prefix = "w83l785ts: ";
+	}
+
+	/* Frequent read errors have been reported on Asus boards, so we
+	 * retry on read errors. If it still fails (unlikely), return the
+	 * default value requested by the caller. */
+	for (i = 1; i <= MAX_RETRIES; i++) {
+		value = i2c_smbus_read_byte_data(client, reg);
+		if (value >= 0) {
+			dev_dbg(dev, "%sRead 0x%02x from register 0x%02x.\n",
+				prefix, value, reg);
+			return value;
+		}
+		dev_dbg(dev, "%sRead failed, will retry in %d.\n", prefix, i);
+		msleep(i);
+	}
+
+	dev_err(dev, "%sCouldn't read value from register 0x%02x.\n", prefix,
+		reg);
+	return defval;
+}
+
+static struct w83l785ts_data *w83l785ts_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83l785ts_data *data = i2c_get_clientdata(client);
+
+	mutex_lock(&data->update_lock);
+
+	if (!data->valid || time_after(jiffies, data->last_updated + HZ * 2)) {
+		dev_dbg(&client->dev, "Updating w83l785ts data.\n");
+		data->temp[0] = w83l785ts_read_value(client,
+				W83L785TS_REG_TEMP, data->temp[0]);
+		data->temp[1] = w83l785ts_read_value(client,
+				W83L785TS_REG_TEMP_OVER, data->temp[1]);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init sensors_w83l785ts_init(void)
+{
+	return i2c_add_driver(&w83l785ts_driver);
+}
+
+static void __exit sensors_w83l785ts_exit(void)
+{
+	i2c_del_driver(&w83l785ts_driver);
+}
+
+MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
+MODULE_DESCRIPTION("W83L785TS-S driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_w83l785ts_init);
+module_exit(sensors_w83l785ts_exit);
diff --git a/drivers/hwmon/w83l786ng.c b/drivers/hwmon/w83l786ng.c
new file mode 100644
index 0000000..badca76
--- /dev/null
+++ b/drivers/hwmon/w83l786ng.c
@@ -0,0 +1,813 @@
+/*
+    w83l786ng.c - Linux kernel driver for hardware monitoring
+    Copyright (c) 2007 Kevin Lo <kevlo@kevlo.org>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation - version 2.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+    02110-1301 USA.
+*/
+
+/*
+    Supports following chips:
+
+    Chip	#vin	#fanin	#pwm	#temp	wchipid	vendid	i2c	ISA
+    w83l786ng	3	2	2	2	0x7b	0x5ca3	yes	no
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-vid.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x2e, 0x2f, I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_1(w83l786ng);
+
+static int reset;
+module_param(reset, bool, 0);
+MODULE_PARM_DESC(reset, "Set to 1 to reset chip, not recommended");
+
+#define W83L786NG_REG_IN_MIN(nr)	(0x2C + (nr) * 2)
+#define W83L786NG_REG_IN_MAX(nr)	(0x2B + (nr) * 2)
+#define W83L786NG_REG_IN(nr)		((nr) + 0x20)
+
+#define W83L786NG_REG_FAN(nr)		((nr) + 0x28)
+#define W83L786NG_REG_FAN_MIN(nr)	((nr) + 0x3B)
+
+#define W83L786NG_REG_CONFIG		0x40
+#define W83L786NG_REG_ALARM1		0x41
+#define W83L786NG_REG_ALARM2 		0x42
+#define W83L786NG_REG_GPIO_EN		0x47
+#define W83L786NG_REG_MAN_ID2		0x4C
+#define W83L786NG_REG_MAN_ID1		0x4D
+#define W83L786NG_REG_CHIP_ID		0x4E
+
+#define W83L786NG_REG_DIODE		0x53
+#define W83L786NG_REG_FAN_DIV		0x54
+#define W83L786NG_REG_FAN_CFG		0x80
+
+#define W83L786NG_REG_TOLERANCE		0x8D
+
+static const u8 W83L786NG_REG_TEMP[2][3] = {
+	{ 0x25,		/* TEMP 0 in DataSheet */
+	  0x35,		/* TEMP 0 Over in DataSheet */
+	  0x36 },	/* TEMP 0 Hyst in DataSheet */
+	{ 0x26,		/* TEMP 1 in DataSheet */
+	  0x37,		/* TEMP 1 Over in DataSheet */
+	  0x38 }	/* TEMP 1 Hyst in DataSheet */
+};
+
+static const u8 W83L786NG_PWM_MODE_SHIFT[] = {6, 7};
+static const u8 W83L786NG_PWM_ENABLE_SHIFT[] = {2, 4};
+
+/* FAN Duty Cycle, be used to control */
+static const u8 W83L786NG_REG_PWM[] = {0x81, 0x87};
+
+
+static inline u8
+FAN_TO_REG(long rpm, int div)
+{
+	if (rpm == 0)
+		return 255;
+	rpm = SENSORS_LIMIT(rpm, 1, 1000000);
+	return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
+}
+
+#define FAN_FROM_REG(val,div)	((val) == 0   ? -1 : \
+				((val) == 255 ? 0 : \
+				1350000 / ((val) * (div))))
+
+/* for temp */
+#define TEMP_TO_REG(val)	(SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
+				    : (val)) / 1000, 0, 0xff))
+#define TEMP_FROM_REG(val)	(((val) & 0x80 ? (val)-0x100 : (val)) * 1000)
+
+/* The analog voltage inputs have 8mV LSB. Since the sysfs output is
+   in mV as would be measured on the chip input pin, need to just
+   multiply/divide by 8 to translate from/to register values. */
+#define IN_TO_REG(val)          (SENSORS_LIMIT((((val) + 4) / 8), 0, 255))
+#define IN_FROM_REG(val)	((val) * 8)
+
+#define DIV_FROM_REG(val)	(1 << (val))
+
+static inline u8
+DIV_TO_REG(long val)
+{
+	int i;
+	val = SENSORS_LIMIT(val, 1, 128) >> 1;
+	for (i = 0; i < 7; i++) {
+		if (val == 0)
+			break;
+		val >>= 1;
+	}
+	return ((u8) i);
+}
+
+struct w83l786ng_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	char valid;			/* !=0 if following fields are valid */
+	unsigned long last_updated;	/* In jiffies */
+	unsigned long last_nonvolatile;	/* In jiffies, last time we update the
+					   nonvolatile registers */
+
+	u8 in[3];
+	u8 in_max[3];
+	u8 in_min[3];
+	u8 fan[2];
+	u8 fan_div[2];
+	u8 fan_min[2];
+	u8 temp_type[2];
+	u8 temp[2][3];
+	u8 pwm[2];
+	u8 pwm_mode[2];	/* 0->DC variable voltage
+			   1->PWM variable duty cycle */
+
+	u8 pwm_enable[2]; /* 1->manual
+			     2->thermal cruise (also called SmartFan I) */
+	u8 tolerance[2];
+};
+
+static int w83l786ng_probe(struct i2c_client *client,
+			   const struct i2c_device_id *id);
+static int w83l786ng_detect(struct i2c_client *client, int kind,
+			    struct i2c_board_info *info);
+static int w83l786ng_remove(struct i2c_client *client);
+static void w83l786ng_init_client(struct i2c_client *client);
+static struct w83l786ng_data *w83l786ng_update_device(struct device *dev);
+
+static const struct i2c_device_id w83l786ng_id[] = {
+	{ "w83l786ng", w83l786ng },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, w83l786ng_id);
+
+static struct i2c_driver w83l786ng_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		   .name = "w83l786ng",
+	},
+	.probe		= w83l786ng_probe,
+	.remove		= w83l786ng_remove,
+	.id_table	= w83l786ng_id,
+	.detect		= w83l786ng_detect,
+	.address_data	= &addr_data,
+};
+
+static u8
+w83l786ng_read_value(struct i2c_client *client, u8 reg)
+{
+	return i2c_smbus_read_byte_data(client, reg);
+}
+
+static int
+w83l786ng_write_value(struct i2c_client *client, u8 reg, u8 value)
+{
+	return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+/* following are the sysfs callback functions */
+#define show_in_reg(reg) \
+static ssize_t \
+show_##reg(struct device *dev, struct device_attribute *attr, \
+           char *buf) \
+{ \
+	int nr = to_sensor_dev_attr(attr)->index; \
+	struct w83l786ng_data *data = w83l786ng_update_device(dev); \
+	return sprintf(buf,"%d\n", IN_FROM_REG(data->reg[nr])); \
+}
+
+show_in_reg(in)
+show_in_reg(in_min)
+show_in_reg(in_max)
+
+#define store_in_reg(REG, reg) \
+static ssize_t \
+store_in_##reg (struct device *dev, struct device_attribute *attr, \
+		const char *buf, size_t count) \
+{ \
+	int nr = to_sensor_dev_attr(attr)->index; \
+	struct i2c_client *client = to_i2c_client(dev); \
+	struct w83l786ng_data *data = i2c_get_clientdata(client); \
+	unsigned long val = simple_strtoul(buf, NULL, 10); \
+	mutex_lock(&data->update_lock); \
+	data->in_##reg[nr] = IN_TO_REG(val); \
+	w83l786ng_write_value(client, W83L786NG_REG_IN_##REG(nr), \
+			      data->in_##reg[nr]); \
+	mutex_unlock(&data->update_lock); \
+	return count; \
+}
+
+store_in_reg(MIN, min)
+store_in_reg(MAX, max)
+
+static struct sensor_device_attribute sda_in_input[] = {
+	SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0),
+	SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1),
+	SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2),
+};
+
+static struct sensor_device_attribute sda_in_min[] = {
+	SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 0),
+	SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 1),
+	SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 2),
+};
+
+static struct sensor_device_attribute sda_in_max[] = {
+	SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 0),
+	SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 1),
+	SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 2),
+};
+
+#define show_fan_reg(reg) \
+static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
+			  char *buf) \
+{ \
+	int nr = to_sensor_dev_attr(attr)->index; \
+	struct w83l786ng_data *data = w83l786ng_update_device(dev); \
+        return sprintf(buf,"%d\n", \
+                FAN_FROM_REG(data->fan[nr], DIV_FROM_REG(data->fan_div[nr]))); \
+}
+
+show_fan_reg(fan);
+show_fan_reg(fan_min);
+
+static ssize_t
+store_fan_min(struct device *dev, struct device_attribute *attr,
+	      const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83l786ng_data *data = i2c_get_clientdata(client);
+	u32 val;
+
+	val = simple_strtoul(buf, NULL, 10);
+	mutex_lock(&data->update_lock);
+	data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
+	w83l786ng_write_value(client, W83L786NG_REG_FAN_MIN(nr),
+			      data->fan_min[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t
+show_fan_div(struct device *dev, struct device_attribute *attr,
+	     char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct w83l786ng_data *data = w83l786ng_update_device(dev);
+	return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr]));
+}
+
+/* Note: we save and restore the fan minimum here, because its value is
+   determined in part by the fan divisor.  This follows the principle of
+   least surprise; the user doesn't expect the fan minimum to change just
+   because the divisor changed. */
+static ssize_t
+store_fan_div(struct device *dev, struct device_attribute *attr,
+	      const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83l786ng_data *data = i2c_get_clientdata(client);
+
+	unsigned long min;
+	u8 tmp_fan_div;
+	u8 fan_div_reg;
+	u8 keep_mask = 0;
+	u8 new_shift = 0;
+
+	/* Save fan_min */
+	mutex_lock(&data->update_lock);
+	min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]));
+
+	data->fan_div[nr] = DIV_TO_REG(simple_strtoul(buf, NULL, 10));
+
+	switch (nr) {
+	case 0:
+		keep_mask = 0xf8;
+		new_shift = 0;
+		break;
+	case 1:
+		keep_mask = 0x8f;
+		new_shift = 4;
+		break;
+	}
+
+	fan_div_reg = w83l786ng_read_value(client, W83L786NG_REG_FAN_DIV)
+					   & keep_mask;
+
+	tmp_fan_div = (data->fan_div[nr] << new_shift) & ~keep_mask;
+
+	w83l786ng_write_value(client, W83L786NG_REG_FAN_DIV,
+			      fan_div_reg | tmp_fan_div);
+
+	/* Restore fan_min */
+	data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
+	w83l786ng_write_value(client, W83L786NG_REG_FAN_MIN(nr),
+			      data->fan_min[nr]);
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static struct sensor_device_attribute sda_fan_input[] = {
+	SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
+	SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
+};
+
+static struct sensor_device_attribute sda_fan_min[] = {
+	SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min,
+		    store_fan_min, 0),
+	SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min,
+		    store_fan_min, 1),
+};
+
+static struct sensor_device_attribute sda_fan_div[] = {
+	SENSOR_ATTR(fan1_div, S_IWUSR | S_IRUGO, show_fan_div,
+		    store_fan_div, 0),
+	SENSOR_ATTR(fan2_div, S_IWUSR | S_IRUGO, show_fan_div,
+		    store_fan_div, 1),
+};
+
+
+/* read/write the temperature, includes measured value and limits */
+
+static ssize_t
+show_temp(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	struct w83l786ng_data *data = w83l786ng_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr][index]));
+}
+
+static ssize_t
+store_temp(struct device *dev, struct device_attribute *attr,
+	   const char *buf, size_t count)
+{
+	struct sensor_device_attribute_2 *sensor_attr =
+	    to_sensor_dev_attr_2(attr);
+	int nr = sensor_attr->nr;
+	int index = sensor_attr->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83l786ng_data *data = i2c_get_clientdata(client);
+	s32 val;
+
+	val = simple_strtol(buf, NULL, 10);
+	mutex_lock(&data->update_lock);
+	data->temp[nr][index] = TEMP_TO_REG(val);
+	w83l786ng_write_value(client, W83L786NG_REG_TEMP[nr][index],
+			      data->temp[nr][index]);
+	mutex_unlock(&data->update_lock);
+
+        return count;
+}
+
+static struct sensor_device_attribute_2 sda_temp_input[] = {
+	SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0),
+	SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 1, 0),
+};
+
+static struct sensor_device_attribute_2 sda_temp_max[] = {
+	SENSOR_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
+		      show_temp, store_temp, 0, 1),
+	SENSOR_ATTR_2(temp2_max, S_IRUGO | S_IWUSR,
+		      show_temp, store_temp, 1, 1),
+};
+
+static struct sensor_device_attribute_2 sda_temp_max_hyst[] = {
+	SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
+		      show_temp, store_temp, 0, 2),
+	SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
+		      show_temp, store_temp, 1, 2),
+};
+
+#define show_pwm_reg(reg) \
+static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \
+			   char *buf) \
+{ \
+	struct w83l786ng_data *data = w83l786ng_update_device(dev); \
+	int nr = to_sensor_dev_attr(attr)->index; \
+	return sprintf(buf, "%d\n", data->reg[nr]); \
+}
+
+show_pwm_reg(pwm_mode)
+show_pwm_reg(pwm_enable)
+show_pwm_reg(pwm)
+
+static ssize_t
+store_pwm_mode(struct device *dev, struct device_attribute *attr,
+	       const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83l786ng_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+	u8 reg;
+
+	if (val > 1)
+		return -EINVAL;
+	mutex_lock(&data->update_lock);
+	data->pwm_mode[nr] = val;
+	reg = w83l786ng_read_value(client, W83L786NG_REG_FAN_CFG);
+	reg &= ~(1 << W83L786NG_PWM_MODE_SHIFT[nr]);
+	if (!val)
+		reg |= 1 << W83L786NG_PWM_MODE_SHIFT[nr];
+	w83l786ng_write_value(client, W83L786NG_REG_FAN_CFG, reg);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t
+store_pwm(struct device *dev, struct device_attribute *attr,
+	  const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83l786ng_data *data = i2c_get_clientdata(client);
+	u32 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255);
+
+	mutex_lock(&data->update_lock);
+	data->pwm[nr] = val;
+	w83l786ng_write_value(client, W83L786NG_REG_PWM[nr], val);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static ssize_t
+store_pwm_enable(struct device *dev, struct device_attribute *attr,
+		 const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83l786ng_data *data = i2c_get_clientdata(client);
+	u32 val = simple_strtoul(buf, NULL, 10);
+
+	u8 reg;
+
+	if (!val || (val > 2))  /* only modes 1 and 2 are supported */
+		return -EINVAL;
+
+	mutex_lock(&data->update_lock);
+	reg = w83l786ng_read_value(client, W83L786NG_REG_FAN_CFG);
+	data->pwm_enable[nr] = val;
+	reg &= ~(0x02 << W83L786NG_PWM_ENABLE_SHIFT[nr]);
+	reg |= (val - 1) << W83L786NG_PWM_ENABLE_SHIFT[nr];
+	w83l786ng_write_value(client, W83L786NG_REG_FAN_CFG, reg);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static struct sensor_device_attribute sda_pwm[] = {
+	SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0),
+	SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1),
+};
+
+static struct sensor_device_attribute sda_pwm_mode[] = {
+	SENSOR_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
+		    store_pwm_mode, 0),
+	SENSOR_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
+		    store_pwm_mode, 1),
+};
+
+static struct sensor_device_attribute sda_pwm_enable[] = {
+	SENSOR_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
+		    store_pwm_enable, 0),
+	SENSOR_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
+		    store_pwm_enable, 1),
+};
+
+/* For Smart Fan I/Thermal Cruise and Smart Fan II */
+static ssize_t
+show_tolerance(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct w83l786ng_data *data = w83l786ng_update_device(dev);
+	return sprintf(buf, "%ld\n", (long)data->tolerance[nr]);
+}
+
+static ssize_t
+store_tolerance(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	int nr = to_sensor_dev_attr(attr)->index;
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83l786ng_data *data = i2c_get_clientdata(client);
+	u32 val;
+	u8 tol_tmp, tol_mask;
+
+	val = simple_strtoul(buf, NULL, 10);
+
+	mutex_lock(&data->update_lock);
+	tol_mask = w83l786ng_read_value(client,
+	    W83L786NG_REG_TOLERANCE) & ((nr == 1) ? 0x0f : 0xf0);
+	tol_tmp = SENSORS_LIMIT(val, 0, 15);
+	tol_tmp &= 0x0f;
+	data->tolerance[nr] = tol_tmp;
+	if (nr == 1) {
+		tol_tmp <<= 4;
+	}
+
+	w83l786ng_write_value(client, W83L786NG_REG_TOLERANCE,
+			      tol_mask | tol_tmp);
+	mutex_unlock(&data->update_lock);
+	return count;
+}
+
+static struct sensor_device_attribute sda_tolerance[] = {
+	SENSOR_ATTR(pwm1_tolerance, S_IWUSR | S_IRUGO,
+		    show_tolerance, store_tolerance, 0),
+	SENSOR_ATTR(pwm2_tolerance, S_IWUSR | S_IRUGO,
+		    show_tolerance, store_tolerance, 1),
+};
+
+
+#define IN_UNIT_ATTRS(X)	\
+	&sda_in_input[X].dev_attr.attr,		\
+	&sda_in_min[X].dev_attr.attr,		\
+	&sda_in_max[X].dev_attr.attr
+
+#define FAN_UNIT_ATTRS(X)	\
+	&sda_fan_input[X].dev_attr.attr,	\
+	&sda_fan_min[X].dev_attr.attr,		\
+	&sda_fan_div[X].dev_attr.attr
+
+#define TEMP_UNIT_ATTRS(X)	\
+	&sda_temp_input[X].dev_attr.attr,	\
+	&sda_temp_max[X].dev_attr.attr,		\
+	&sda_temp_max_hyst[X].dev_attr.attr
+
+#define PWM_UNIT_ATTRS(X)	\
+	&sda_pwm[X].dev_attr.attr,		\
+	&sda_pwm_mode[X].dev_attr.attr,		\
+	&sda_pwm_enable[X].dev_attr.attr
+
+#define TOLERANCE_UNIT_ATTRS(X)	\
+	&sda_tolerance[X].dev_attr.attr
+
+static struct attribute *w83l786ng_attributes[] = {
+	IN_UNIT_ATTRS(0),
+	IN_UNIT_ATTRS(1),
+	IN_UNIT_ATTRS(2),
+	FAN_UNIT_ATTRS(0),
+	FAN_UNIT_ATTRS(1),
+	TEMP_UNIT_ATTRS(0),
+	TEMP_UNIT_ATTRS(1),
+	PWM_UNIT_ATTRS(0),
+	PWM_UNIT_ATTRS(1),
+	TOLERANCE_UNIT_ATTRS(0),
+	TOLERANCE_UNIT_ATTRS(1),
+	NULL
+};
+
+static const struct attribute_group w83l786ng_group = {
+	.attrs = w83l786ng_attributes,
+};
+
+static int
+w83l786ng_detect(struct i2c_client *client, int kind,
+		 struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
+		return -ENODEV;
+	}
+
+	/*
+	 * Now we do the remaining detection. A negative kind means that
+	 * the driver was loaded with no force parameter (default), so we
+	 * must both detect and identify the chip (actually there is only
+	 * one possible kind of chip for now, W83L786NG). A zero kind means
+	 * that the driver was loaded with the force parameter, the detection
+	 * step shall be skipped. A positive kind means that the driver
+	 * was loaded with the force parameter and a given kind of chip is
+	 * requested, so both the detection and the identification steps
+	 * are skipped.
+	 */
+	if (kind < 0) { /* detection */
+		if (((w83l786ng_read_value(client,
+		    W83L786NG_REG_CONFIG) & 0x80) != 0x00)) {
+			dev_dbg(&adapter->dev,
+				"W83L786NG detection failed at 0x%02x.\n",
+				client->addr);
+			return -ENODEV;
+		}
+	}
+
+	if (kind <= 0) { /* identification */
+		u16 man_id;
+		u8 chip_id;
+
+		man_id = (w83l786ng_read_value(client,
+		    W83L786NG_REG_MAN_ID1) << 8) +
+		    w83l786ng_read_value(client, W83L786NG_REG_MAN_ID2);
+		chip_id = w83l786ng_read_value(client, W83L786NG_REG_CHIP_ID);
+
+		if (man_id == 0x5CA3) { /* Winbond */
+			if (chip_id == 0x80) { /* W83L786NG */
+				kind = w83l786ng;
+			}
+		}
+
+		if (kind <= 0) { /* identification failed */
+			dev_info(&adapter->dev,
+			    "Unsupported chip (man_id=0x%04X, "
+			    "chip_id=0x%02X).\n", man_id, chip_id);
+			return -ENODEV;
+		}
+	}
+
+	strlcpy(info->type, "w83l786ng", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int
+w83l786ng_probe(struct i2c_client *client, const struct i2c_device_id *id)
+{
+	struct device *dev = &client->dev;
+	struct w83l786ng_data *data;
+	int i, err = 0;
+	u8 reg_tmp;
+
+	data = kzalloc(sizeof(struct w83l786ng_data), GFP_KERNEL);
+	if (!data) {
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
+
+	/* Initialize the chip */
+	w83l786ng_init_client(client);
+
+	/* A few vars need to be filled upon startup */
+	for (i = 0; i < 2; i++) {
+		data->fan_min[i] = w83l786ng_read_value(client,
+		    W83L786NG_REG_FAN_MIN(i));
+	}
+
+	/* Update the fan divisor */
+	reg_tmp = w83l786ng_read_value(client, W83L786NG_REG_FAN_DIV);
+	data->fan_div[0] = reg_tmp & 0x07;
+	data->fan_div[1] = (reg_tmp >> 4) & 0x07;
+
+	/* Register sysfs hooks */
+	if ((err = sysfs_create_group(&client->dev.kobj, &w83l786ng_group)))
+		goto exit_remove;
+
+	data->hwmon_dev = hwmon_device_register(dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	return 0;
+
+	/* Unregister sysfs hooks */
+
+exit_remove:
+	sysfs_remove_group(&client->dev.kobj, &w83l786ng_group);
+	kfree(data);
+exit:
+	return err;
+}
+
+static int
+w83l786ng_remove(struct i2c_client *client)
+{
+	struct w83l786ng_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&client->dev.kobj, &w83l786ng_group);
+
+	kfree(data);
+
+	return 0;
+}
+
+static void
+w83l786ng_init_client(struct i2c_client *client)
+{
+	u8 tmp;
+
+	if (reset)
+		w83l786ng_write_value(client, W83L786NG_REG_CONFIG, 0x80);
+
+	/* Start monitoring */
+	tmp = w83l786ng_read_value(client, W83L786NG_REG_CONFIG);
+	if (!(tmp & 0x01))
+		w83l786ng_write_value(client, W83L786NG_REG_CONFIG, tmp | 0x01);
+}
+
+static struct w83l786ng_data *w83l786ng_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83l786ng_data *data = i2c_get_clientdata(client);
+	int i, j;
+	u8 reg_tmp, pwmcfg;
+
+	mutex_lock(&data->update_lock);
+	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+	    || !data->valid) {
+		dev_dbg(&client->dev, "Updating w83l786ng data.\n");
+
+		/* Update the voltages measured value and limits */
+		for (i = 0; i < 3; i++) {
+			data->in[i] = w83l786ng_read_value(client,
+			    W83L786NG_REG_IN(i));
+			data->in_min[i] = w83l786ng_read_value(client,
+			    W83L786NG_REG_IN_MIN(i));
+			data->in_max[i] = w83l786ng_read_value(client,
+			    W83L786NG_REG_IN_MAX(i));
+		}
+
+		/* Update the fan counts and limits */
+		for (i = 0; i < 2; i++) {
+			data->fan[i] = w83l786ng_read_value(client,
+			    W83L786NG_REG_FAN(i));
+			data->fan_min[i] = w83l786ng_read_value(client,
+			    W83L786NG_REG_FAN_MIN(i));
+		}
+
+		/* Update the fan divisor */
+		reg_tmp = w83l786ng_read_value(client, W83L786NG_REG_FAN_DIV);
+		data->fan_div[0] = reg_tmp & 0x07;
+		data->fan_div[1] = (reg_tmp >> 4) & 0x07;
+
+		pwmcfg = w83l786ng_read_value(client, W83L786NG_REG_FAN_CFG);
+		for (i = 0; i < 2; i++) {
+			data->pwm_mode[i] =
+			    ((pwmcfg >> W83L786NG_PWM_MODE_SHIFT[i]) & 1)
+			    ? 0 : 1;
+			data->pwm_enable[i] =
+			    ((pwmcfg >> W83L786NG_PWM_ENABLE_SHIFT[i]) & 2) + 1;
+			data->pwm[i] = w83l786ng_read_value(client,
+			    W83L786NG_REG_PWM[i]);
+		}
+
+
+		/* Update the temperature sensors */
+		for (i = 0; i < 2; i++) {
+			for (j = 0; j < 3; j++) {
+				data->temp[i][j] = w83l786ng_read_value(client,
+				    W83L786NG_REG_TEMP[i][j]);
+			}
+		}
+
+		/* Update Smart Fan I/II tolerance */
+		reg_tmp = w83l786ng_read_value(client, W83L786NG_REG_TOLERANCE);
+		data->tolerance[0] = reg_tmp & 0x0f;
+		data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init
+sensors_w83l786ng_init(void)
+{
+	return i2c_add_driver(&w83l786ng_driver);
+}
+
+static void __exit
+sensors_w83l786ng_exit(void)
+{
+	i2c_del_driver(&w83l786ng_driver);
+}
+
+MODULE_AUTHOR("Kevin Lo");
+MODULE_DESCRIPTION("w83l786ng driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_w83l786ng_init);
+module_exit(sensors_w83l786ng_exit);