summaryrefslogtreecommitdiffstats
path: root/drivers/iio/adc/at91_adc.c
Commit message (Collapse)AuthorAgeFilesLines
* Drivers: iio:adc: fix brace coding style issue in at91_adc.cVenkat Prashanth B U2018-01-081-2/+2
| | | | | | | | | This is a patch to the at91_adc.c file that fixes up a brace warning found by the checkpatch.pl tool Signed-off-by: Venkat Prashanth B U <venkat.prashanth2498@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.ownerJonathan Cameron2017-08-221-2/+0
| | | | | | | | | The equivalent of both of these are now done via macro magic when the relevant register calls are made. The actual structure elements will shortly go away. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
* iio: adc: at91: make array startup_lookup staticColin Ian King2017-07-101-1/+1
| | | | | | | | | | | | | | | | Don't populate array startup_lookup on the stack but instead make it static. Makes the object code smaller. Before: text data bss dec hex filename 21754 5440 128 27322 6aba drivers/iio/adc/at91_adc.o After: text data bss dec hex filename 21613 5496 128 27237 6a65 drivers/iio/adc/at91_adc.o Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
* iio: adc: at91: add suspend and resume callbackWenyou Yang2016-11-051-0/+28
| | | | | | | | | Add suspend/resume callback, support the pinctrl sleep state when the system suspend as well. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* Merge tag 'iio-for-4.9b' of ↵Greg Kroah-Hartman2016-09-141-0/+13
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: Second set of iio new device support, features and cleanups for the 4.9 cycle. New device support * ad8801 dac - new driver supporting ad8801 and ad8803 DACs. * adc12138 - new driver supporting TI adc12130/adc12132 and adc12138 ADCs. * ltc2485 adc - new driver * mxc6255 - add support for the mxc6225 part name and fixup the ID check so it works. * vz89x VOC sensor - add support for the vz89te part which drops the voc_short channel and adds CRCs compared to other supported parts. New features * core - immutable triggers. These effectively grant exclusive control over a trigger. The typical usecase is a device representing an analog part (perhaps a MUX) that needs to control the sampling of a downstream ADC. - resource managed trigger registration and triggered_buffer_init. - iio_push_event now protected against case of the event interface registration not having yet occured. Only matters if an interrupt can occur during this window - might happen on shared interrupt lines. - helper to let a driver query if the trigger it is using is provided by itself (using the convention of both device and trigger having the same parent). * tools - iio-utils. Used channel modifier scaling in preference to generic scaling when both exist. * at91-adc - Add support for touchscreen switches closure time needed by some newer parts. * stx104 - support the ADC channels on this ADC/DAC board. As these are the primary feature of the board also move the driver to the iio/adc directory. * sx9500 - device tree bindings. Cleanups / Fixes * ad5755 - fix an off-by-one on devnr limit check (introduced earlier this cycle) * ad7266 - drop NULL check on devm_regulator_get_optional as it can't return NULL. * ak8974 - avoid an unused functional warning due to rework in PM core code. - remove .owner field setting as done by i2c_core. * ina2xx - clear out a left over debug field from chip global data. * hid-sensors - avoid an unused functional warning due to rework in PM core code. * maxim-thermocouple - fix non static symbol warnings. * ms5611 - fetch and enable regulators unconditionally when they aren't optional. * sca3000 - whitespace cleanup. * st_sensors - fetch and enable regulators unconditionally rather than having them supported as optional regulators (missunderstanding on my part amongst others a while back) - followup to previous patch fixes error checking on the regulators. - mark symbols static where possible. - use the 'is it my trigger' help function. This prevents the odd case of another device triggering from the st-sensors trigger whilst the st-sensors trigger is itself not using it but rather using say an hrtimer. * ti-ads1015 - add missing of_node_put. * vz89x - rework to all support of new devices. - prevent reading of a corrupted buffer. - fixup a return value of 0/1 in a bool returning function. Address updates - Vlad Dogaru email address change.
| * iio: adc: at91: Add support for Touchscreen Switches Closure TimeNicolas Ferre2016-09-051-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | On newer components compatible with the at91sam9x5, the Touchscreen Switches Closure Time or TSSCTIM value of the Touchscreen Mode Register is not filled at all. On some hardware, having no time indicated for it may lead to incoherent values and jitter. We fix this time to 10us as it is usually difficult to retrieve impedance values from LCD manufacturers. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* | iio: adc: at91: unbreak channel adc channel 3Anders Darander2016-08-151-2/+2
|/ | | | | | | | | | | | | | | | | | The driver always assumes that an input device has been created when reading channel 3. This causes a kernel panic when dereferencing st->ts_input. The change was introduced in commit 84882b060301 ("iio: adc: at91_adc: Add support for touchscreens without TSMR"). Earlier versions only entered that part of the if-else statement if only the following flags are set: AT91_ADC_IER_XRDY | AT91_ADC_IER_YRDY | AT91_ADC_IER_PRDY Signed-off-by: Anders Darander <anders@chargestorm.se> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: adc: at91_adc: fix errors reported by checkpatch.plSlawomir Stepien2016-04-161-4/+4
| | | | | | | | | | This fixes the errors reported by checkpatch.pl: ERROR: space prohibited before that ',' (ctx:WxW) ERROR: code indent should use tabs where possible Signed-off-by: Slawomir Stepien <sst@poczta.fm> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* IIO: adc: at91_adc.c Prefer kmalloc_array over kmalloc with multiplyNizam Haider2015-11-221-1/+1
| | | | | | | | So this patch swaps that use out for kmalloc_array instead. Signed-off-by Nizam Haider <nijamh@cdac.in> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: adc: at91_adc: allow to use full range of startup timeJan Leupold2015-06-211-4/+4
| | | | | | | | | | | | | | | | The DT-Property "atmel,adc-startup-time" is stored in an u8 for a microsecond value. When trying to increase the value of STARTUP in Register AT91_ADC_MR some higher values can't be reached. Change the type in function parameter and private structure field from u8 to u32. Signed-off-by: Jan Leupold <leupold@rsi-elektrotechnik.de> [nicolas.ferre@atmel.com: change commit message, increase u16 to u32 for startup time] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: fix drivers that check buffer->scan_maskOctavian Purdila2015-03-071-3/+2
| | | | | | | | | | | | | | If the in-kernel push interface is used we may have a different masks on the device buffer and the kernel buffer and in this case the device should generate data for the reunion of the buffers, which is available at indio_dev->active_scan_mask. Compiled tested only except for bmc150-accel which was tested at runtime with the hardware. Signed-off-by: Octavian Purdila <octavian.purdila@intel.com> Cc: <stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* Merge 3.17-rc6 into staging-next.Greg Kroah-Hartman2014-09-221-5/+7
|\ | | | | | | | | | | | | We want the fixes in there, and it resolves a merge issue with drivers/iio/accel/bma180.c Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * iio: adc: at91: don't use the last converted data registerLudovic Desroches2014-09-141-5/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If touchscreen mode is enabled and a conversion is requested on another channel, the result in the last converted data register can be a touchscreen relative value. Starting a conversion involves to do a conversion for all active channel. It starts with ADC channels and ends with touchscreen channels. Then if ADC_LCD register is not read quickly, its content may be a touchscreen conversion. To remove this temporal constraint, the conversion value is taken from the channel data register. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Stable@vger.kernel.org Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* | iio: adc: at91: make the function handle_adc_eoc_trigger() staticJosh Wu2014-08-301-1/+1
|/ | | | | | | | | The handle_adc_eoc_trigger() in only used in at91_adc.c. So make it static. Signed-off-by: Josh Wu <josh.wu@atmel.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* Merge 3.16-rc2 into staging-nextGreg Kroah-Hartman2014-06-221-8/+8
|\ | | | | | | We want the staging fixes here as well.
| * Merge tag 'iio-fixes-for-3.16a' of ↵Greg Kroah-Hartman2014-06-181-8/+8
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus Jonathan writes: First set of IIO fixes for the 3.16 cycle. A mixed bag of fixes, many of which feel just to late for 3.15. * hid sensors - some devices need a feature report request in order to change power state. This isn't part of the spec, but has been observed on several devices and does no harm to others. * mpl3115 has had two errors in the buffer description fixed. The presure is signed, not unsigned and the temperature has 12 bits rather than 16. These could lead to incorrect interpretation of the data in userspace. * tsl2x7x - the high byte of the proximity thresholds should be written along with the low byte (which was). This could lead to interesting results with large thresholds. * twl4030 - a flag to specify processed values were required was not set when initializing a reading. As such values returned were in an unknown state. Fixed by simply initializing it appropriately. * IIO_SIMPLE_DUMMY_BUFFER did not select IIO_BUFFER leading to randconfig build errors. * ak8975 was applying an unwanted le16_to_cpu conversion as the i2c framework already performs one. As such for big endian systems, the bytes would be in the wrong order in the magnetic field measurements reported. * mxs-lradc - the controllable voltage dividers were not enabled / disabled for later channels than the first one during conversion. * at91_adc error handling returned -ENOMEM in a u8. Return value of at91_adc_get_trigger_value_by_name changed to int thus allowing -ENOMEM and also original values to be returned. * mcb - mcb_request_mem returns and ERR_PTR but the caller was checking for NULL to detect an error.
| | * iio: adc: at91: signedness bug in at91_adc_get_trigger_value_by_name()Dan Carpenter2014-06-141-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | at91_adc_get_trigger_value_by_name() was returning -ENOMEM truncated to a positive u8 and that doesn't work. I've changed it to int and refactored it to preserve the error code. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Tested-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Cc: Stable@vger.kernel.org
* | | Merge tag 'iio-for-3.17a' of ↵Greg Kroah-Hartman2014-06-181-1/+1
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: First round of new drivers, cleanups and functionality for the 3.17 cycle. New drivers * t5403 barometric pressure sensor * kxcjk1013 accelerometer (with a locking followup fix). * ak09911 digital compass Documentation * ABI docs for proximity added (interface has been there a long time but somehow snuck through without being documented) * Move iio-trig-sysfs documentation out of staging (got left behind when the driver moved some time ago). Cleanups * drop the timestamp argument from iio_trigger_poll(_chained) as nothing has been done with it for some time. * ad799x kerneldoc for ad799x_chip brought up to date. * replace a number of reimplementations of the GENMASK macro and use the BIT macro to cleanup a few locations. * bring the iio_event_monitor example program up to date with new device types. * fix some incorrect function prototypes in iio_utils.h example code. * INDIO_RING_TRIGGERED to INDIO_BUFFER_TRIGGERED fix in docs. This got left behind after we renamed it a long time back. * fix error handling in the generic_buffer example program. * small tidy ups in the iio-trig-periodic-rtc driver. * Allow reseting iio-trig-periodic-rtc frequency to 0 (default) after it has changed. * Trivial tidy ups in coding style in iio_simply_dummy
| * | iio: Remove timestamp argument from iio_trigger_poll() and ↵Peter Meerwald2014-06-141-1/+1
| |/ | | | | | | | | | | | | | | | | iio_trigger_poll_chained() argument has been ignored; adjust drivers accordingly Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* | iio: adc: at91: add sam9rl supportAlexandre Belloni2014-05-071-0/+18
| | | | | | | | | | | | Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* | iio: adc: at91: remove unused include from include/machAlexandre Belloni2014-05-071-1/+102
| | | | | | | | | | | | | | | | | | That include file is now only used by the at91_adc driver, remove it from include/mach for better driver separation. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* | iio: adc: at91_adc: Add support for touchscreens without TSMRAlexandre Belloni2014-05-071-47/+153
| | | | | | | | | | | | | | | | | | Old ADCs, as present on the sam9rl and the sam9g45 don't have a TSMR register and the touchscreen support should be handled differently. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* | iio: adc: at91: cleanup platform_dataAlexandre Belloni2014-05-071-0/+19
|/ | | | | | | | | | | num_channels and registers are not used anymore since they are defined inside the driver and assigned by matching the id_table. Also, struct at91_adc_reg_desc is now only used inside the driver. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
* iio: adc: at91_adc: correct default shtim valueAlexandre Belloni2014-03-151-2/+5
| | | | | | | | | | | | When sample_hold_time is zero (this is the case when DT is not used or if atmel,adc-sample-hold-time is omitted), then the calculated shtim is large. Make that 0, which is the default for that register and the ADC will then use a sane value of 2/ADCCLK or 1/ADCCLK depending on the version. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Josh Wu <josh.wu@atmel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: adc: at91_adc: Repair broken platform_data supportAlexandre Belloni2014-03-061-4/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Trying to use the at91_adc driver while not using device tree is ending up in a kernel crash: Unable to handle kernel NULL pointer dereference at virtual address 00000004 [...] [<c01f3510>] (at91_adc_probe) from [<c0183828>] (platform_drv_probe+0x18/0x48) [<c0183828>] (platform_drv_probe) from [<c01824a4>] (driver_probe_device+0x100/0x218) [<c01824a4>] (driver_probe_device) from [<c0182648>] (__driver_attach+0x8c/0x90) [<c0182648>] (__driver_attach) from [<c0180de4>] (bus_for_each_dev+0x58/0x88) [<c0180de4>] (bus_for_each_dev) from [<c0181c7c>] (bus_add_driver+0xd4/0x1d4) [<c0181c7c>] (bus_add_driver) from [<c0182c40>] (driver_register+0x78/0xf4) [<c0182c40>] (driver_register) from [<c0008998>] (do_one_initcall+0xe8/0x14c) [<c0008998>] (do_one_initcall) from [<c02f0b50>] (kernel_init_freeable+0xec/0x1b4) [<c02f0b50>] (kernel_init_freeable) from [<c022acdc>] (kernel_init+0x8/0xe4) [<c022acdc>] (kernel_init) from [<c0009670>] (ret_from_fork+0x14/0x24) This is because the at91_adc_caps structure is mandatory but is not filled when using platform_data. Correct that by using an id_table. It ensues that the driver will not match "at91_adc" anymore but it was crashing anyway. Fixes: c46016665fff (iio: at91: ADC start-up time calculation changed since at91sam9x5) Cc: stable@vger.kernel.org # v3.13+ Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Tested-by: Josh Wu <josh.wu@atmel.com> Acked-by: Josh Wu <josh.wu@atmel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: at91: fix error return code in at91_adc_probe()Wei Yongjun2013-11-021-0/+1
| | | | | | | | | Fix to return -ENODEV instead of 0 if non-TSMR adc don't support, as done elsewhere in this function. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by: Josh Wu <josh.wu@atmel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: at91: introduce touch screen support in iio adc driverJosh Wu2013-10-171-24/+364
| | | | | | | | | | | | | | | | | | | AT91 ADC hardware integrate touch screen support. So this patch add touch screen support for at91 adc iio driver. To enable touch screen support in adc, you need to add the dt parameters: 1. which type of touch are used? (4 or 5 wires), sample period time. 2. correct pressure detect threshold value. In the meantime, since touch screen will use a interal period trigger of adc, so it is conflict to other hardware triggers. Driver will disable the hardware trigger support if touch screen is enabled. This driver has been tested in AT91SAM9X5-EK and SAMA5D3x-EK. Signed-off-by: Josh Wu <josh.wu@atmel.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> CC: devicetree@vger.kernel.org Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: at91: move the num_channels from DT to driver itselfJosh Wu2013-10-091-7/+5
| | | | | | | CC: devicetree@vger.kernel.org Signed-off-by: Josh Wu <josh.wu@atmel.com> Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: at91: ADC start-up time calculation changed since at91sam9x5Josh Wu2013-10-091-7/+46
| | | | | | | | | | Since in at91sam9x5, sama5d3x chip. the start up time calucation is changed. This patch can choose different start up time calculation formula for different chips. Signed-off-by: Josh Wu <josh.wu@atmel.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio:at91: Report scale as fractional valueLars-Peter Clausen2013-10-011-3/+3
| | | | | | | | Move the complexity of calculating the fixed point scale to the core. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Josh Wu <josh.wu@atmel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* Merge 3.12-rc2 into staging-next.Greg Kroah-Hartman2013-09-251-5/+6
|\ | | | | | | | | | | | | | | This resolves the merge problem with two iio drivers that Stephen Rothwell pointed out. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * iio: at91: fix adc_clk overflowJosh Wu2013-09-181-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The adc_clk variable is currently defined using a 32-bits unsigned integer, which will overflow under some very valid range of operations. Such overflow will occur if, for example, the parent clock is set to a 20MHz frequency and the ADC startup time is larger than 215ns. To fix this, introduce an intermediate variable holding the clock rate in kHz. Signed-off-by: Josh Wu <josh.wu@atmel.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* | iio:at91_adc: Use iio_push_to_buffers_with_timestamp()Lars-Peter Clausen2013-09-211-7/+1
| | | | | | | | | | | | | | | | Makes the code a bit shorter and less ugly. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Josh Wu <josh.wu@atmel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* | iio: at91_adc: Cocci spatch "noderef"Thomas Meyer2013-09-201-1/+1
| | | | | | | | | | | | | | | | | | sizeof when applied to a pointer typed expression gives the size of the pointer. Found by coccinelle spatch "misc/noderef.cocci" Signed-off-by: Thomas Meyer <thomas@m3y3r.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* | iio: Remove unnecessary casts for iio_push_to_buffers()Lars-Peter Clausen2013-09-151-1/+1
|/ | | | | | | | Now that iio_push_to_buffers() takes a void pointer for the data parameter we can remove those casts to u8*. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: at91: Use different prescal, startup mask in MR for different IPJosh Wu2013-08-291-2/+9
| | | | | | | | | For at91 boards, there are different IPs for adc. Different IPs has different STARTUP & PRESCAL mask in ADC_MR. Signed-off-by: Josh Wu <josh.wu@atmel.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: at91: introduce the multiple compatible string for different IPs.Josh Wu2013-08-291-38/+41
| | | | | | | | | As use the multiple compatible string, we can remove hardware register in dt. CC: devicetree@vger.kernel.org Signed-off-by: Josh Wu <josh.wu@atmel.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: at91: Use devm_iio_device_allocSachin Kamat2013-08-031-16/+7
| | | | | | | | Using devm_iio_device_alloc makes code simpler. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: at91_adc: Add missing CONFIG_OF macroSachin Kamat2013-06-041-0/+2
| | | | | | | | | The data structure is required only when DT is enabled. Hence compile it conditionally. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: at91_adc: fix missing Sample and Hold timeJean-Christophe PLAGNIOL-VILLARD2013-04-021-1/+14
| | | | | | | | | | | On the at91_adc a minimal Sample and Hold Time is necessary for the ADC to guarantee the best converted final value between two channels selection. This time has to be programmed through the bitfield SHTIM in the Mode Register ADC_MR. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: at91_adc: add sleep mode supportJean-Christophe PLAGNIOL-VILLARD2013-04-021-9/+10
| | | | | | | | | The sleep mode will allow to put the adc in sleep between conversion. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: at91_adc: add low and high res supportLudovic Desroches2013-04-021-4/+70
| | | | | | | | | | | at91 adc offers the choice between two resolutions: low and high. The low and high resolution values depends on adc IP version, as many IP properties have been exposed through device tree, these settings have also been added to the dt bindings. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio:trigger: Introduce iio_tigger_{set,get}_drvdataLars-Peter Clausen2013-03-251-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce iio_tigger_{set,get}_drvdata which allows to attach driver specific data to a trigger. The functions wrap access to the triggers private_data field and all current users are updated to use iio_tigger_{set,get}_drvdata instead of directly accessing the private_data field. This is the first step towards removing the private_data field from the iio_trigger struct. The following coccinelle script has been used to update the drivers: <smpl> @@ struct iio_trigger *trigger; expression priv; @@ -trigger->private_data = priv +iio_trigger_set_drv_data(trigger, priv) @@ struct iio_trigger *trigger; @@ -trigger->private_data +iio_trigger_get_drv_data(trigger) </smpl> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio:adc:at91_adc move to info_mask_(shared_by_type/separate)Jonathan Cameron2013-03-171-2/+2
| | | | | | | The original info_mask is going away in favour of the broken out versions. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
* iio: Convert to devm_ioremap_resource()Thierry Reding2013-01-221-3/+3
| | | | | | | | | Convert all uses of devm_request_and_ioremap() to the newly introduced devm_ioremap_resource() which provides more consistent error handling. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'staging-3.8-rc3' of ↵Linus Torvalds2013-01-141-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging fixes from Greg Kroah-Hartman: "Here are a number of small fixes to staging drivers for your 3.8-rc3 tree. Well, the omapdrm fixes aren't really "small" but they were waiting on a number of other drm patches to go in through the drm tree, and got delayed by my vacation over the holidays. They are totally self-contained, everyone involved have acked them, and they fix issues that people have been having with the driver. Other than that one, it's a bunch of tiny bugfixes for a number of reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'staging-3.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (36 commits) staging: zram: fix invalid memory references during disk write staging: tidspbridge: use prepare/unprepare on dsp clocks staging: tidspbridge: Fix build breakage due to splitting CM functions. staging: comedi: comedi_test: fix race when cancelling command staging: comedi: Kconfig: COMEDI_NI_AT_A2150 should select COMEDI_FC staging: comedi: prevent auto-unconfig of manually configured devices staging: comedi: fix minimum AO period for NI 625x and NI 628x staging: vme_pio2: fix oops on module unloading staging: speakup: avoid out-of-range access in synth_add() staging: speakup: avoid out-of-range access in synth_init() staging: rtl8192e: Fix failure to check pci_map_single() staging: rtl8187se: Fix failure to check pci_map_single() staging: drm/imx: fix double free bug in error path staging: drm/imx: several bug fixes staging: drm/imx: check return value of ipu_reset() staging: drm/omap: fix flags in dma buf exporting staging: drm/omap: use omapdss low level API staging/fwserial: Update TODO file per reviewer comments staging/fwserial: Limit tx/rx to 1394-2008 spec maximum staging/fwserial: Refine Kconfig help text ...
| * iio: at91: fix dev var name in at91_adc_trigger_handlerJean-Christophe PLAGNIOL-VILLARD2012-12-271-1/+1
| | | | | | | | | | | | | | | | | | | | /opt/work/linux-2.6/drivers/iio/adc/at91_adc.c: In function 'at91_adc_trigger_handler': /opt/work/linux-2.6/drivers/iio/adc/at91_adc.c:83:22: error: 'indio_dev' undeclared (first use in this function) /opt/work/linux-2.6/drivers/iio/adc/at91_adc.c:83:22: note: each undeclared identifier is reported only once for each function it appears in Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: linux-iio@vger.kernel.org Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* | Drivers: iio: remove __dev* attributes.Greg Kroah-Hartman2013-01-031-3/+3
|/ | | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* staging:iio: Add support for multiple buffersJonathan Cameron2012-11-101-2/+1
| | | | | | | | | Route all buffer writes through the demux. Addition or removal of a buffer results in tear down and setup of all the buffers for a given device. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Tested-by: srinivas pandruvada <srinivas.pandruvada@intel.com>
* Revert "iio: at91_adc: Use devm_kcalloc to allocate arrays"Axel Lin2012-10-311-6/+10
| | | | | | | | This reverts commit 45259859492812c8b700ae1d157be01a8d2babfe. This fixes build error because devm_kcalloc does not exist in current tree. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
OpenPOWER on IntegriCloud