Merge tag 'iio-for-4.11b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into work-next

Jonathan writes:

Second round of IIO new device support, cleanups and features for the 4.11 cycle

New device support:
* lsm6dsx imu
  - new driver and bindings.
* max11100 adc
  - new driver and bindings.
* tlc4541
  - new driver
* tmp007 thermopile
  - new driver.

Core
* in kernel interfaces
  - pass through raw values if no scaling provided and a processed value is
    requested.
* trigger
  - close a race condition in acquiring trigger reference.
  - constify device_type structures.
  - rework the viio_trigger_alloc function to be much neater and easier to
  read.
  - free trigger resources correctly on some error paths. Avoids putting a
  module we don't have.

Documentation
* ABI
  - specify a unit for proximity measurements.

Cleanups and features
* ads1015
  - constify iio_info structure.
* ads7950 cleanups following merge in previous pull
  - Add device tree bindings
  - Drop the ti prefix from the module name in common with other drivers.
  - Change regulator name to vref to match datasheet and other drivers.
* ak8974
  - remove a redundant zero timeout check.
* bmi160
  - use variable names for sizeof instead of types.
* cm3605
  - mark PM functions as __maybe_unused to avoid a build warning.
* isl29028 (on it's way towards moving out of staging).
  - alignment fixes and newline improvements.
  - combine proxim_get and read_proxim for simpler code.
  - drop unused ISL29028_DEV_ATTR macro
  - move some error logging into functions to cut out repitition.
  - make error messages more consistent.
  - tidy up some brackets.
  - drop the enable flag that nothing uses.
  - only set proximity rate and ALS scale when relevant channel type is enabled.
  - runtime pm support.
* lsm6dsx
  - fix wrong values for gyro sensitivitiy.
* mag3110
  - claim direct mode during sysfs reads to avoid a race condition.
* max1363
  - export OF device table IDs as module aliases.
* max30100
  - use msleep for long uncritical delays.
* mcp4531
  - export OF device table as module aliases.
* ms5611
  - claim direct mode during sysfs reads to avoid a race condition.
* opt3001
  - export OF device table as module aliases.
* sx9500
  - claim direct mode during oversampling changes to avoid a race condition.

5 files changed, 94 insertions, 1 deletions

diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index 8ec362b..530809c 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -1255,7 +1255,8 @@ Description:
 		reflectivity of infrared or ultrasound emitted.
 		Often these sensors are unit less and as such conversion
 		to SI units is not possible. Higher proximity measurements
-		indicate closer objects, and vice versa.
+		indicate closer objects, and vice versa. Units after
+		application of scale and offset are meters.
 
 What:		/sys/.../iio:deviceX/in_illuminance_input
 What:		/sys/.../iio:deviceX/in_illuminance_raw
diff --git a/Documentation/devicetree/bindings/iio/adc/max11100.txt b/Documentation/devicetree/bindings/iio/adc/max11100.txt
new file mode 100644
index 0000000..b7f7177
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/max11100.txt
@@ -0,0 +1,18 @@
+* Maxim max11100 Analog to Digital Converter (ADC)
+
+Required properties:
+  - compatible: Should be "maxim,max11100"
+  - reg: the adc unit address
+  - vref-supply: phandle to the regulator that provides reference voltage
+
+Optional properties:
+  - spi-max-frequency: SPI maximum frequency
+
+Example:
+
+max11100: adc@0 {
+        compatible = "maxim,max11100";
+        reg = <0>;
+        vref-supply = <&adc0_vref>;
+        spi-max-frequency = <240000>;
+};
diff --git a/Documentation/devicetree/bindings/iio/adc/ti-ads7950.txt b/Documentation/devicetree/bindings/iio/adc/ti-ads7950.txt
new file mode 100644
index 0000000..e77a6f7
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti-ads7950.txt
@@ -0,0 +1,23 @@
+* Texas Instruments ADS7950 family of A/DC chips
+
+Required properties:
+ - compatible: Must be one of "ti,ads7950", "ti,ads7951", "ti,ads7952",
+   "ti,ads7953", "ti,ads7954", "ti,ads7955", "ti,ads7956", "ti,ads7957",
+   "ti,ads7958", "ti,ads7959", "ti,ads7960", or "ti,ads7961"
+ - reg: SPI chip select number for the device
+ - #io-channel-cells: Must be 1 as per ../iio-bindings.txt
+ - vref-supply: phandle to a regulator node that supplies the 2.5V or 5V
+   reference voltage
+
+Recommended properties:
+ - spi-max-frequency: Definition as per
+		Documentation/devicetree/bindings/spi/spi-bus.txt
+
+Example:
+adc@0 {
+	compatible = "ti,ads7957";
+	reg = <0>;
+	#io-channel-cells = <1>;
+	vref-supply = <&refin_supply>;
+	spi-max-frequency = <10000000>;
+};
diff --git a/Documentation/devicetree/bindings/iio/imu/st_lsm6dsx.txt b/Documentation/devicetree/bindings/iio/imu/st_lsm6dsx.txt
new file mode 100644
index 0000000..ed3cdac
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/imu/st_lsm6dsx.txt
@@ -0,0 +1,24 @@
+* ST_LSM6DSx driver for STM 6-axis (acc + gyro) imu Mems sensors
+
+Required properties:
+- compatible: must be one of:
+  "st,lsm6ds3"
+  "st,lsm6dsm"
+- reg: i2c address of the sensor / spi cs line
+
+Optional properties:
+- interrupt-parent: should be the phandle for the interrupt controller
+- interrupts: interrupt mapping for IRQ. It should be configured with
+  flags IRQ_TYPE_LEVEL_HIGH or IRQ_TYPE_EDGE_RISING.
+
+  Refer to interrupt-controller/interrupts.txt for generic interrupt
+  client node bindings.
+
+Example:
+
+lsm6dsm@6b {
+	compatible = "st,lsm6dsm";
+	reg = <0x6b>;
+	interrupt-parent = <&gpio0>;
+	interrupts = <0 IRQ_TYPE_EDGE_RISING>;
+};
diff --git a/Documentation/devicetree/bindings/iio/temperature/tmp007.txt b/Documentation/devicetree/bindings/iio/temperature/tmp007.txt
new file mode 100644
index 0000000..3b8f41f
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/temperature/tmp007.txt
@@ -0,0 +1,27 @@
+* TI TMP007 - IR thermopile sensor with integrated math engine
+
+Link to datasheet: http://www.ti.com/lit/ds/symlink/tmp007.pdf
+
+Required properties:
+
+  - compatible: should be "ti,tmp007"
+  - reg: the I2C address of the sensor (changeable via ADR pins)
+		------------------------------
+		|ADR1 | ADR0 | Device Address|
+		------------------------------
+		   0      0        0x40
+		   0	  1	   0x41
+		   0	 SDA       0x42
+		   0     SCL       0x43
+		   1      0        0x44
+		   1      1        0x45
+		   1	 SDA	   0x46
+		   1     SCL       0x47
+
+Example:
+
+tmp007@40 {
+        compatible = "ti,tmp007";
+        reg = <0x40>;
+};
+