Merge tag 'staging-5.1-rc1' of git://git.kernel.org/pub/scm/linux/ker…

…nel/git/gregkh/staging

Pull staging/IIO updates from Greg KH:
 "Here is the big staging/iio driver pull request for 5.1-rc1.

  Lots of good IIO driver updates and cleanups in here as always.
  Combined with the removal of the xgifb driver, we have a net "loss" of
  over 9000 lines in the pull request, always a nice thing.

  As the outreachy application process is currently happening, there are
  loads of tiny checkpatch cleanup fixes all over the staging tree,
  which accounts for the majority of the fixups"

* tag 'staging-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (341 commits)
  staging: mt7621-dma: remove license boilerplate text
  staging: mt7621-dma: add SPDX GPL-2.0+ license identifier
  Staging: ks7010: Replace typecast to int
  Staging: vt6655: Align a static function declaration
  staging: speakup: fix line over 80 characters.
  staging: mt7621-eth: Remove license boilerplate text
  staging: mt7621-eth: Add SPDX license identifier
  staging: ks7010: removed custom Michael MIC implementation.
  staging: rtl8192e: Fix space and suspect issue
  Staging: vt6655: Modify comment style of SPDX License Identifier
  Staging: vt6655: Modify comment style for SPDX-License-Identifier
  Staging: vt6655: Align a function declaration
  Staging: vt6655: Alignment of function declaration
  staging: rtl8712: Fix indentation issue
  staging: wilc1000: fix incorrent type in initializer
  staging: rtl8188eu: remove unused P2P_PRIVATE_IOCTL_SET_LEN
  staging: rtl8188eu: remove unused enum P2P_PROTO_WK_ID
  staging: rtl8723bs: Remove duplicated include from drv_types.h
  Staging: vt6655: Alignment should match open parenthesis
  staging: erofs: fix mis-acted TAIL merging behavior
  ...

Documentation/ABI/testing/sysfs-bus-iio

@@ -1554,6 +1554,10 @@ What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_co2_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_co2_raw
+What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_ethanol_raw
+What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_ethanol_raw
+What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_h2_raw
+What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_h2_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_concentration_voc_raw
 What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_voc_raw
 KernelVersion:	4.3
@@ -1684,4 +1688,19 @@ KernelVersion:	4.18
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Raw (unscaled) phase difference reading from channel Y
-		that can be processed to radians.
+		that can be processed to radians.
+
+What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm1_input
+What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm1_input
+What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm2p5_input
+What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm2p5_input
+What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm4_input
+What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm4_input
+What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentration_pm10_input
+What:		/sys/bus/iio/devices/iio:deviceX/in_massconcentrationY_pm10_input
+KernelVersion:	4.22
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Mass concentration reading of particulate matter in ug / m3.
+		pmX consists of particles with aerodynamic diameter less or
+		equal to X micrometers.

Documentation/ABI/testing/sysfs-bus-iio-sps30

@@ -0,0 +1,28 @@
+What:		/sys/bus/iio/devices/iio:deviceX/start_cleaning
+Date:		December 2018
+KernelVersion:	4.22
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Writing 1 starts sensor self cleaning. Internal fan accelerates
+		to its maximum speed and keeps spinning for about 10 seconds in
+		order to blow out accumulated dust.
+
+What:		/sys/bus/iio/devices/iio:deviceX/cleaning_period
+Date:		January 2019
+KernelVersion:	5.1
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Sensor is capable of triggering self cleaning periodically.
+		Period can be changed by writing a new value here. Upon reading
+		the current one is returned. Units are seconds.
+
+		Writing 0 disables periodical self cleaning entirely.
+
+What:		/sys/bus/iio/devices/iio:deviceX/cleaning_period_available
+Date:		January 2019
+KernelVersion:	5.1
+Contact:	linux-iio@vger.kernel.org
+Description:
+		The range of available values in seconds represented as the
+		minimum value, the step and the maximum value, all enclosed in
+		square brackets.

Documentation/devicetree/bindings/iio/accel/mma8452.txt

@@ -20,6 +20,10 @@ Optional properties:
   - interrupt-names: should contain "INT1" and/or "INT2", the accelerometer's
 		     interrupt line in use.
 
+  - vdd-supply: phandle to the regulator that provides vdd power to the accelerometer.
+
+  - vddio-supply: phandle to the regulator that provides vddio power to the accelerometer.
+
 Example:
 
 	mma8453fc@1d {

Documentation/devicetree/bindings/iio/adc/adi,ad7606.txt

@@ -0,0 +1,65 @@
+Analog Devices AD7606 Simultaneous Sampling ADC
+
+Required properties for the AD7606:
+
+- compatible: Must be one of
+	* "adi,ad7605-4"
+	* "adi,ad7606-8"
+	* "adi,ad7606-6"
+	* "adi,ad7606-4"
+- reg: SPI chip select number for the device
+- spi-max-frequency: Max SPI frequency to use
+	see: Documentation/devicetree/bindings/spi/spi-bus.txt
+- spi-cpha: See Documentation/devicetree/bindings/spi/spi-bus.txt
+- avcc-supply: phandle to the Avcc power supply
+- interrupts: IRQ line for the ADC
+	see: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
+- adi,conversion-start-gpios: must be the device tree identifier of the CONVST pin.
+		  This logic input is used to initiate conversions on the analog
+		  input channels. As the line is active high, it should be marked
+		  GPIO_ACTIVE_HIGH.
+
+Optional properties:
+
+- reset-gpios: must be the device tree identifier of the RESET pin. If specified,
+	       it will be asserted during driver probe. As the line is active high,
+	       it should be marked GPIO_ACTIVE_HIGH.
+- standby-gpios: must be the device tree identifier of the STBY pin. This pin is used
+		to place the AD7606 into one of two power-down modes, Standby mode or
+		Shutdown mode. As the line is active low, it should be marked
+		GPIO_ACTIVE_LOW.
+- adi,first-data-gpios: must be the device tree identifier of the FRSTDATA pin.
+		    The FRSTDATA output indicates when the first channel, V1, is
+		    being read back on either the parallel, byte or serial interface.
+		    As the line is active high, it should be marked GPIO_ACTIVE_HIGH.
+- adi,range-gpios: must be the device tree identifier of the RANGE pin. The polarity on
+	      this pin determines the input range of the analog input channels. If
+	      this pin is tied to a logic high, the analog input range is ±10V for
+	      all channels. If this pin is tied to a logic low, the analog input range
+	      is ±5V for all channels. As the line is active high, it should be marked
+	      GPIO_ACTIVE_HIGH.
+- adi,oversampling-ratio-gpios: must be the device tree identifier of the over-sampling
+				mode pins. As the line is active high, it should be marked
+				GPIO_ACTIVE_HIGH.
+
+Example:
+
+	adc@0 {
+		compatible = "adi,ad7606-8";
+		reg = <0>;
+		spi-max-frequency = <1000000>;
+		spi-cpol;
+
+		avcc-supply = <&adc_vref>;
+
+		interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
+		interrupt-parent = <&gpio>;
+
+		adi,conversion-start-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>;
+		reset-gpios = <&gpio 27 GPIO_ACTIVE_HIGH>;
+		adi,first-data-gpios = <&gpio 22 GPIO_ACTIVE_HIGH>;
+		adi,oversampling-ratio-gpios = <&gpio 18 GPIO_ACTIVE_HIGH
+						&gpio 23 GPIO_ACTIVE_HIGH
+						&gpio 26 GPIO_ACTIVE_HIGH>;
+		standby-gpios = <&gpio 24 GPIO_ACTIVE_LOW>;
+	};

Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.txt

@@ -0,0 +1,41 @@
+Analog Devices AD7768-1 ADC device driver
+
+Required properties for the AD7768-1:
+
+- compatible: Must be "adi,ad7768-1"
+- reg: SPI chip select number for the device
+- spi-max-frequency: Max SPI frequency to use
+	see: Documentation/devicetree/bindings/spi/spi-bus.txt
+- clocks: phandle to the master clock (mclk)
+	see: Documentation/devicetree/bindings/clock/clock-bindings.txt
+- clock-names: Must be "mclk".
+- interrupts: IRQ line for the ADC
+	see: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
+- vref-supply: vref supply can be used as reference for conversion
+- adi,sync-in-gpios: must be the device tree identifier of the SYNC-IN pin. Enables
+	synchronization of multiple devices that require simultaneous sampling.
+	A pulse is always required if the configuration is changed in any way, for example
+	if the filter decimation rate changes. As the line is active low, it should
+	be marked GPIO_ACTIVE_LOW.
+
+Optional properties:
+
+ - reset-gpios : GPIO spec for the RESET pin. If specified, it will be asserted during
+	driver probe. As the line is active low, it should be marked GPIO_ACTIVE_LOW.
+
+Example:
+
+	adc@0 {
+		compatible = "adi,ad7768-1";
+		reg = <0>;
+		spi-max-frequency = <2000000>;
+		spi-cpol;
+		spi-cpha;
+		vref-supply = <&adc_vref>;
+		interrupts = <25 IRQ_TYPE_EDGE_RISING>;
+		interrupt-parent = <&gpio>;
+		adi,sync-in-gpios = <&gpio 22 GPIO_ACTIVE_LOW>;
+		reset-gpios = <&gpio 27 GPIO_ACTIVE_LOW>;
+		clocks = <&ad7768_mclk>;
+		clock-names = "mclk";
+	};

Documentation/devicetree/bindings/iio/adc/amlogic,meson-saradc.txt

@@ -23,6 +23,10 @@ Required properties:
 - #io-channel-cells: must be 1, see ../iio-bindings.txt
 
 Optional properties:
+- amlogic,hhi-sysctrl:	phandle to the syscon which contains the 5th bit
+			of the TSC (temperature sensor coefficient) on
+			Meson8b and Meson8m2 (which used to calibrate the
+			temperature sensor)
 - nvmem-cells:		phandle to the temperature_calib eFuse cells
 - nvmem-cell-names:	if present (to enable the temperature sensor
 			calibration) this must contain "temperature_calib"

Documentation/devicetree/bindings/iio/adc/ingenic,adc.txt

@@ -0,0 +1,48 @@
+* Ingenic JZ47xx ADC controller IIO bindings
+
+Required properties:
+
+- compatible: Should be one of:
+  * ingenic,jz4725b-adc
+  * ingenic,jz4740-adc
+- reg: ADC controller registers location and length.
+- clocks: phandle to the SoC's ADC clock.
+- clock-names: Must be set to "adc".
+- #io-channel-cells: Must be set to <1> to indicate channels are selected
+  by index.
+
+ADC clients must use the format described in iio-bindings.txt, giving
+a phandle and IIO specifier pair ("io-channels") to the ADC controller.
+
+Example:
+
+#include <dt-bindings/iio/adc/ingenic,adc.h>
+
+adc: adc@10070000 {
+	compatible = "ingenic,jz4740-adc";
+	#io-channel-cells = <1>;
+
+	reg = <0x10070000 0x30>;
+
+	clocks = <&cgu JZ4740_CLK_ADC>;
+	clock-names = "adc";
+
+	interrupt-parent = <&intc>;
+	interrupts = <18>;
+};
+
+adc-keys {
+	...
+	compatible = "adc-keys";
+	io-channels = <&adc INGENIC_ADC_AUX>;
+	io-channel-names = "buttons";
+	...
+};
+
+battery {
+	...
+	compatible = "ingenic,jz4740-battery";
+	io-channels = <&adc INGENIC_ADC_BATTERY>;
+	io-channel-names = "battery";
+	...
+};

Documentation/devicetree/bindings/iio/adc/nuvoton,npcm-adc.txt

@@ -0,0 +1,24 @@
+Nuvoton NPCM Analog to Digital Converter (ADC)
+
+The NPCM ADC is a 10-bit converter for eight channel inputs.
+
+Required properties:
+- compatible: "nuvoton,npcm750-adc" for the NPCM7XX BMC.
+- reg: specifies physical base address and size of the registers.
+- interrupts: Contain the ADC interrupt with flags for falling edge.
+
+Optional properties:
+- clocks: phandle of ADC reference clock, in case the clock is not
+		  added the ADC will use the default ADC sample rate.
+- vref-supply: The regulator supply ADC reference voltage, in case the
+			   vref-supply is not added the ADC will use internal voltage
+			   reference.
+
+Example:
+
+adc: adc@f000c000 {
+	compatible = "nuvoton,npcm750-adc";
+	reg = <0xf000c000 0x8>;
+	interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
+	clocks = <&clk NPCM7XX_CLK_ADC>;
+};

Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.txt

@@ -11,11 +11,13 @@ New driver handles the following
 
 Required properties:
 - compatible:		Must be "samsung,exynos-adc-v1"
-				for exynos4412/5250 controllers.
+				for Exynos5250 controllers.
 			Must be "samsung,exynos-adc-v2" for
 				future controllers.
 			Must be "samsung,exynos3250-adc" for
 				controllers compatible with ADC of Exynos3250.
+			Must be "samsung,exynos4212-adc" for
+				controllers compatible with ADC of Exynos4212 and Exynos4412.
 			Must be "samsung,exynos7-adc" for
 				the ADC in Exynos7 and compatibles
 			Must be "samsung,s3c2410-adc" for

Documentation/devicetree/bindings/iio/adc/ti-ads124s08.txt

@@ -0,0 +1,25 @@
+* Texas Instruments' ads124s08 and ads124s06 ADC chip
+
+Required properties:
+ - compatible :
+	"ti,ads124s08"
+	"ti,ads124s06"
+ - reg : spi chip select number for the device
+
+Recommended properties:
+ - spi-max-frequency : Definition as per
+		Documentation/devicetree/bindings/spi/spi-bus.txt
+ - spi-cpha : Definition as per
+		Documentation/devicetree/bindings/spi/spi-bus.txt
+
+Optional properties:
+ - reset-gpios : GPIO pin used to reset the device.
+
+Example:
+adc@0 {
+	compatible = "ti,ads124s08";
+	reg = <0>;
+	spi-max-frequency = <1000000>;
+	spi-cpha;
+	reset-gpios = <&gpio1 16 GPIO_ACTIVE_LOW>;
+};

Documentation/devicetree/bindings/iio/chemical/bme680.txt

@@ -0,0 +1,11 @@
+Bosch Sensortec BME680 pressure/temperature/humidity/voc sensors
+
+Required properties:
+- compatible: must be "bosch,bme680"
+
+Example:
+
+bme680@76 {
+          compatible = "bosch,bme680";
+          reg = <0x76>;
+};

Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.txt

@@ -0,0 +1,20 @@
+* Plantower PMS7003 particulate matter sensor
+
+Required properties:
+- compatible: must be "plantower,pms7003"
+- vcc-supply: phandle to the regulator that provides power to the sensor
+
+Optional properties:
+- plantower,set-gpios: phandle to the GPIO connected to the SET line
+- reset-gpios: phandle to the GPIO connected to the RESET line
+
+Refer to serial/slave-device.txt for generic serial attached device bindings.
+
+Example:
+
+&uart0 {
+	air-pollution-sensor {
+		compatible = "plantower,pms7003";
+		vcc-supply = <&reg_vcc5v0>;
+	};
+};

Documentation/devicetree/bindings/iio/chemical/sensirion,sgp30.txt

@@ -0,0 +1,15 @@
+* Sensirion SGP30/SGPC3 multi-pixel Gas Sensor
+
+Required properties:
+
+  - compatible: must be one of
+    "sensirion,sgp30"
+    "sensirion,sgpc3"
+  - reg: the I2C address of the sensor
+
+Example:
+
+gas@58 {
+	compatible = "sensirion,sgp30";
+	reg = <0x58>;
+};

Documentation/devicetree/bindings/iio/chemical/sensirion,sps30.txt

@@ -0,0 +1,12 @@
+* Sensirion SPS30 particulate matter sensor
+
+Required properties:
+- compatible: must be "sensirion,sps30"
+- reg: the I2C address of the sensor
+
+Example:
+
+sps30@69 {
+	compatible = "sensirion,sps30";
+	reg = <0x69>;
+};

Documentation/devicetree/bindings/iio/dac/ti,dac7612.txt

@@ -0,0 +1,28 @@
+* Texas Instruments Dual, 12-Bit Serial Input Digital-to-Analog Converter
+
+The DAC7612 is a dual, 12-bit digital-to-analog converter (DAC) with guaranteed
+12-bit monotonicity performance over the industrial temperature range.
+Is is programmable through an SPI interface.
+
+The internal DACs are loaded when the LOADDACS pin is pulled down.
+
+http://www.ti.com/lit/ds/sbas106/sbas106.pdf
+
+Required Properties:
+- compatible: Should be one of:
+		"ti,dac7612"
+		"ti,dac7612u"
+		"ti,dac7612ub"
+- reg: Definition as per Documentation/devicetree/bindings/spi/spi-bus.txt
+
+Optional Properties:
+- ti,loaddacs-gpios: GPIO descriptor for the LOADDACS pin.
+- spi-*: Definition as per Documentation/devicetree/bindings/spi/spi-bus.txt
+
+Example:
+
+	dac@1 {
+		compatible = "ti,dac7612";
+		reg = <0x1>;
+		ti,loaddacs-gpios = <&msmgpio 25 GPIO_ACTIVE_LOW>;
+	};