Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

31 files changed, 1038 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/hwmon/adc128d818.txt b/Documentation/devicetree/bindings/hwmon/adc128d818.txt
new file mode 100644
index 000000000..08bab0e94
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/adc128d818.txt
@@ -0,0 +1,38 @@
+TI ADC128D818 ADC System Monitor With Temperature Sensor
+--------------------------------------------------------
+
+Operation modes:
+
+ - Mode 0:  7 single-ended voltage readings (IN0-IN6),
+            1 temperature reading (internal)
+ - Mode 1:  8 single-ended voltage readings (IN0-IN7),
+            no temperature
+ - Mode 2:  4 pseudo-differential voltage readings
+              (IN0-IN1, IN3-IN2, IN4-IN5, IN7-IN6),
+            1 temperature reading (internal)
+ - Mode 3:  4 single-ended voltage readings (IN0-IN3),
+            2 pseudo-differential voltage readings
+              (IN4-IN5, IN7-IN6),
+            1 temperature reading (internal)
+
+If no operation mode is configured via device tree, the driver keeps the
+currently active chip operation mode (default is mode 0).
+
+
+Required node properties:
+
+ - compatible:  must be set to "ti,adc128d818"
+ - reg:         I2C address of the device
+
+Optional node properties:
+
+ - ti,mode:     Operation mode (see above).
+
+
+Example (operation mode 2):
+
+	adc128d818@1d {
+		compatible = "ti,adc128d818";
+		reg = <0x1d>;
+		ti,mode = <2>;
+	};
diff --git a/Documentation/devicetree/bindings/hwmon/ads1015.txt b/Documentation/devicetree/bindings/hwmon/ads1015.txt
new file mode 100644
index 000000000..918a507d1
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/ads1015.txt
@@ -0,0 +1,73 @@
+ADS1015 (I2C)
+
+This device is a 12-bit A-D converter with 4 inputs.
+
+The inputs can be used single ended or in certain differential combinations.
+
+For configuration all possible combinations are mapped to 8 channels:
+  0: Voltage over AIN0 and AIN1.
+  1: Voltage over AIN0 and AIN3.
+  2: Voltage over AIN1 and AIN3.
+  3: Voltage over AIN2 and AIN3.
+  4: Voltage over AIN0 and GND.
+  5: Voltage over AIN1 and GND.
+  6: Voltage over AIN2 and GND.
+  7: Voltage over AIN3 and GND.
+
+Each channel can be configured individually:
+ - pga is the programmable gain amplifier (values are full scale)
+    0: +/- 6.144 V
+    1: +/- 4.096 V
+    2: +/- 2.048 V (default)
+    3: +/- 1.024 V
+    4: +/- 0.512 V
+    5: +/- 0.256 V
+ - data_rate in samples per second
+    0: 128
+    1: 250
+    2: 490
+    3: 920
+    4: 1600 (default)
+    5: 2400
+    6: 3300
+
+1) The /ads1015 node
+
+  Required properties:
+
+   - compatible : must be "ti,ads1015"
+   - reg : I2C bus address of the device
+   - #address-cells : must be <1>
+   - #size-cells : must be <0>
+
+  The node contains child nodes for each channel that the platform uses.
+
+  Example ADS1015 node:
+
+    ads1015@49 {
+	    compatible = "ti,ads1015";
+	    reg = <0x49>;
+	    #address-cells = <1>;
+	    #size-cells = <0>;
+
+	    [ child node definitions... ]
+    }
+
+2) channel nodes
+
+  Required properties:
+
+   - reg : the channel number
+
+  Optional properties:
+
+   - ti,gain : the programmable gain amplifier setting
+   - ti,datarate : the converter data rate
+
+  Example ADS1015 channel node:
+
+    channel@4 {
+	    reg = <4>;
+	    ti,gain = <3>;
+	    ti,datarate = <5>;
+    };
diff --git a/Documentation/devicetree/bindings/hwmon/ads7828.txt b/Documentation/devicetree/bindings/hwmon/ads7828.txt
new file mode 100644
index 000000000..fe0cc4ad7
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/ads7828.txt
@@ -0,0 +1,25 @@
+ads7828 properties
+
+Required properties:
+- compatible: Should be one of
+	       ti,ads7828
+	       ti,ads7830
+- reg: I2C address
+
+Optional properties:
+
+- ti,differential-input
+  Set to use the device in differential mode.
+- vref-supply
+  The external reference on the device is set to this regulators output. If it
+  does not exists the internal reference will be used and output by the ads78xx
+  on the "external vref" pin.
+
+  Example ADS7828 node:
+
+  ads7828: ads@48 {
+	   comatible = "ti,ads7828";
+	   reg = <0x48>;
+	   vref-supply = <&vref>;
+	   ti,differential-input;
+  };
diff --git a/Documentation/devicetree/bindings/hwmon/apm-xgene-hwmon.txt b/Documentation/devicetree/bindings/hwmon/apm-xgene-hwmon.txt
new file mode 100644
index 000000000..59b38557f
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/apm-xgene-hwmon.txt
@@ -0,0 +1,14 @@
+APM X-Gene hwmon driver
+
+APM X-Gene SOC sensors are accessed over the "SLIMpro" mailbox.
+
+Required properties :
+ - compatible : should be "apm,xgene-slimpro-hwmon"
+ - mboxes : use the label reference for the mailbox as the first parameter.
+	    The second parameter is the channel number.
+
+Example :
+	hwmonslimpro {
+		compatible = "apm,xgene-slimpro-hwmon";
+		mboxes = <&mailbox 7>;
+	};
diff --git a/Documentation/devicetree/bindings/hwmon/aspeed-pwm-tacho.txt b/Documentation/devicetree/bindings/hwmon/aspeed-pwm-tacho.txt
new file mode 100644
index 000000000..3ac02988a
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/aspeed-pwm-tacho.txt
@@ -0,0 +1,73 @@
+ASPEED AST2400/AST2500 PWM and Fan Tacho controller device driver
+
+The ASPEED PWM controller can support upto 8 PWM outputs. The ASPEED Fan Tacho
+controller can support upto 16 Fan tachometer inputs.
+
+There can be upto 8 fans supported. Each fan can have one PWM output and
+one/two Fan tach inputs.
+
+Required properties for pwm-tacho node:
+- #address-cells : should be 1.
+
+- #size-cells : should be 1.
+
+- #cooling-cells: should be 2.
+
+- reg : address and length of the register set for the device.
+
+- pinctrl-names : a pinctrl state named "default" must be defined.
+
+- pinctrl-0 : phandle referencing pin configuration of the PWM ports.
+
+- compatible : should be "aspeed,ast2400-pwm-tacho" for AST2400 and
+	       "aspeed,ast2500-pwm-tacho" for AST2500.
+
+- clocks : phandle to clock provider with the clock number in the second cell
+
+- resets : phandle to reset controller with the reset number in the second cell
+
+fan subnode format:
+===================
+Under fan subnode there can upto 8 child nodes, with each child node
+representing a fan. If there are 8 fans each fan can have one PWM port and
+one/two Fan tach inputs.
+For PWM port can be configured cooling-levels to create cooling device.
+Cooling device could be bound to a thermal zone for the thermal control.
+
+Required properties for each child node:
+- reg : should specify PWM source port.
+	integer value in the range 0 to 7 with 0 indicating PWM port A and
+	7 indicating PWM port H.
+
+- cooling-levels: PWM duty cycle values in a range from 0 to 255
+                  which correspond to thermal cooling states.
+
+- aspeed,fan-tach-ch : should specify the Fan tach input channel.
+                integer value in the range 0 through 15, with 0 indicating
+		Fan tach channel 0 and 15 indicating Fan tach channel 15.
+		Atleast one Fan tach input channel is required.
+
+Examples:
+
+pwm_tacho: pwmtachocontroller@1e786000 {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	#cooling-cells = <2>;
+	reg = <0x1E786000 0x1000>;
+	compatible = "aspeed,ast2500-pwm-tacho";
+	clocks = <&syscon ASPEED_CLK_APB>;
+	resets = <&syscon ASPEED_RESET_PWM>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm0_default &pinctrl_pwm1_default>;
+
+	fan@0 {
+		reg = <0x00>;
+		cooling-levels = /bits/ 8 <125 151 177 203 229 255>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x00>;
+	};
+
+	fan@1 {
+		reg = <0x01>;
+		aspeed,fan-tach-ch = /bits/ 8 <0x01 0x02>;
+	};
+};
diff --git a/Documentation/devicetree/bindings/hwmon/g762.txt b/Documentation/devicetree/bindings/hwmon/g762.txt
new file mode 100644
index 000000000..25cc6d8ee
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/g762.txt
@@ -0,0 +1,47 @@
+GMT G762/G763 PWM Fan controller
+
+Required node properties:
+
+ - "compatible": must be either "gmt,g762" or "gmt,g763"
+ - "reg": I2C bus address of the device
+ - "clocks": a fixed clock providing input clock frequency
+	     on CLK pin of the chip.
+
+Optional properties:
+
+ - "fan_startv": fan startup voltage. Accepted values are 0, 1, 2 and 3.
+	       The higher the more.
+
+ - "pwm_polarity": pwm polarity. Accepted values are 0 (positive duty)
+	       and 1 (negative duty).
+
+ - "fan_gear_mode": fan gear mode. Supported values are 0, 1 and 2.
+
+If an optional property is not set in .dts file, then current value is kept
+unmodified (e.g. u-boot installed value).
+
+Additional information on operational parameters for the device is available
+in Documentation/hwmon/g762. A detailed datasheet for the device is available
+at http://natisbad.org/NAS/refs/GMT_EDS-762_763-080710-0.2.pdf.
+
+Example g762 node:
+
+   clocks {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	g762_clk: fixedclk {
+		 compatible = "fixed-clock";
+		 #clock-cells = <0>;
+		 clock-frequency = <8192>;
+	}
+   }
+
+   g762: g762@3e {
+	compatible = "gmt,g762";
+	reg = <0x3e>;
+	clocks = <&g762_clk>
+	fan_gear_mode = <0>; /* chip default */
+	fan_startv = <1>;    /* chip default */
+	pwm_polarity = <0>;  /* chip default */
+   };
diff --git a/Documentation/devicetree/bindings/hwmon/gpio-fan.txt b/Documentation/devicetree/bindings/hwmon/gpio-fan.txt
new file mode 100644
index 000000000..2becdcfdc
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/gpio-fan.txt
@@ -0,0 +1,40 @@
+Bindings for fan connected to GPIO lines
+
+Required properties:
+- compatible : "gpio-fan"
+
+Optional properties:
+- gpios: Specifies the pins that map to bits in the control value,
+  ordered MSB-->LSB.
+- gpio-fan,speed-map: A mapping of possible fan RPM speeds and the
+  control value that should be set to achieve them. This array
+  must have the RPM values in ascending order.
+- alarm-gpios: This pin going active indicates something is wrong with
+  the fan, and a udev event will be fired.
+- #cooling-cells: If used as a cooling device, must be <2>
+  Also see: Documentation/devicetree/bindings/thermal/thermal.txt
+  min and max states are derived from the speed-map of the fan.
+
+Note: At least one the "gpios" or "alarm-gpios" properties must be set.
+
+Examples:
+
+	gpio_fan {
+		compatible = "gpio-fan";
+		gpios = <&gpio1 14 1
+			 &gpio1 13 1>;
+		gpio-fan,speed-map = <0    0
+				      3000 1
+				      6000 2>;
+		alarm-gpios = <&gpio1 15 1>;
+	};
+	gpio_fan_cool: gpio_fan {
+		compatible = "gpio-fan";
+		gpios = <&gpio2 14 1
+			 &gpio2 13 1>;
+		gpio-fan,speed-map =	<0    0>,
+					<3000 1>,
+					<6000 2>;
+		alarm-gpios = <&gpio2 15 1>;
+		#cooling-cells = <2>; /* min followed by max */
+	};
diff --git a/Documentation/devicetree/bindings/hwmon/ibm,cffps1.txt b/Documentation/devicetree/bindings/hwmon/ibm,cffps1.txt
new file mode 100644
index 000000000..f68a0a68f
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/ibm,cffps1.txt
@@ -0,0 +1,21 @@
+Device-tree bindings for IBM Common Form Factor Power Supply Version 1
+----------------------------------------------------------------------
+
+Required properties:
+ - compatible = "ibm,cffps1";
+ - reg = < I2C bus address >;		: Address of the power supply on the
+					  I2C bus.
+
+Example:
+
+    i2c-bus@100 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        #interrupt-cells = <1>;
+        < more properties >
+
+        power-supply@68 {
+            compatible = "ibm,cffps1";
+            reg = <0x68>;
+        };
+    };
diff --git a/Documentation/devicetree/bindings/hwmon/ibmpowernv.txt b/Documentation/devicetree/bindings/hwmon/ibmpowernv.txt
new file mode 100644
index 000000000..f93242be6
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/ibmpowernv.txt
@@ -0,0 +1,23 @@
+IBM POWERNV platform sensors
+----------------------------
+
+Required node properties:
+- compatible: must be one of
+		"ibm,opal-sensor-cooling-fan"
+		"ibm,opal-sensor-amb-temp"
+		"ibm,opal-sensor-power-supply"
+		"ibm,opal-sensor-power"
+- sensor-id: an opaque id provided by the firmware to the kernel, identifies a
+	     given sensor and its attribute data
+
+Example sensors node:
+
+cooling-fan#8-data {
+	sensor-id = <0x7052107>;
+	compatible = "ibm,opal-sensor-cooling-fan";
+};
+
+amb-temp#1-thrs {
+	sensor-id = <0x5096000>;
+	compatible = "ibm,opal-sensor-amb-temp";
+};
diff --git a/Documentation/devicetree/bindings/hwmon/ina2xx.txt b/Documentation/devicetree/bindings/hwmon/ina2xx.txt
new file mode 100644
index 000000000..02af0d94e
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/ina2xx.txt
@@ -0,0 +1,24 @@
+ina2xx properties
+
+Required properties:
+- compatible: Must be one of the following:
+	- "ti,ina209" for ina209
+	- "ti,ina219" for ina219
+	- "ti,ina220" for ina220
+	- "ti,ina226" for ina226
+	- "ti,ina230" for ina230
+	- "ti,ina231" for ina231
+- reg: I2C address
+
+Optional properties:
+
+- shunt-resistor
+	Shunt resistor value in micro-Ohm
+
+Example:
+
+ina220@44 {
+	compatible = "ti,ina220";
+	reg = <0x44>;
+	shunt-resistor = <1000>;
+};
diff --git a/Documentation/devicetree/bindings/hwmon/jc42.txt b/Documentation/devicetree/bindings/hwmon/jc42.txt
new file mode 100644
index 000000000..f569db58f
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/jc42.txt
@@ -0,0 +1,46 @@
+Properties for Jedec JC-42.4 compatible temperature sensors
+
+Required properties:
+- compatible: May include a device-specific string consisting of the
+	      manufacturer and the name of the chip. A list of supported
+	      chip names follows.
+	      Must include "jedec,jc-42.4-temp" for any Jedec JC-42.4
+	      compatible temperature sensor.
+
+	      Supported chip names:
+		adi,adt7408
+		atmel,at30ts00
+		atmel,at30tse004
+		onnn,cat6095
+		onnn,cat34ts02
+		maxim,max6604
+		microchip,mcp9804
+		microchip,mcp9805
+		microchip,mcp9808
+		microchip,mcp98243
+		microchip,mcp98244
+		microchip,mcp9843
+		nxp,se97
+		nxp,se98
+		st,stts2002
+		st,stts2004
+		st,stts3000
+		st,stts424
+		st,stts424e
+		idt,tse2002
+		idt,tse2004
+		idt,ts3000
+		idt,ts3001
+
+- reg: I2C address
+
+Optional properties:
+- smbus-timeout-disable: When set, the smbus timeout function will be disabled.
+			 This is not supported on all chips.
+
+Example:
+
+temp-sensor@1a {
+	compatible = "jedec,jc-42.4-temp";
+	reg = <0x1a>;
+};
diff --git a/Documentation/devicetree/bindings/hwmon/lm70.txt b/Documentation/devicetree/bindings/hwmon/lm70.txt
new file mode 100644
index 000000000..ea417a0d3
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/lm70.txt
@@ -0,0 +1,22 @@
+* LM70/TMP121/LM71/LM74 thermometer.
+
+Required properties:
+- compatible: one of
+		"ti,lm70"
+		"ti,tmp121"
+		"ti,tmp122"
+		"ti,lm71"
+		"ti,lm74"
+
+See Documentation/devicetree/bindings/spi/spi-bus.txt for more required and
+optional properties.
+
+Example:
+
+spi_master {
+	temperature-sensor@0 {
+		compatible = "ti,lm70";
+		reg = <0>;
+		spi-max-frequency = <1000000>;
+	};
+};
diff --git a/Documentation/devicetree/bindings/hwmon/lm87.txt b/Documentation/devicetree/bindings/hwmon/lm87.txt
new file mode 100644
index 000000000..e1b79903f
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/lm87.txt
@@ -0,0 +1,30 @@
+*LM87 hwmon sensor.
+
+Required properties:
+- compatible: Should be
+	"ti,lm87"
+
+- reg: I2C address
+
+optional properties:
+- has-temp3: This configures pins 18 and 19 to be used as a second
+             remote temperature sensing channel. By default the pins
+             are configured as voltage input pins in0 and in5.
+
+- has-in6: When set, pin 5 is configured to be used as voltage input
+           in6. Otherwise the pin is set as FAN1 input.
+
+- has-in7: When set, pin 6 is configured to be used as voltage input
+           in7. Otherwise the pin is set as FAN2 input.
+
+- vcc-supply: a Phandle for the regulator supplying power, can be
+              cofigured to measure 5.0V power supply. Default is 3.3V.
+
+Example:
+
+lm87@2e {
+	compatible = "ti,lm87";
+	reg = <0x2e>;
+	has-temp3;
+	vcc-supply = <&reg_5v0>;
+};
diff --git a/Documentation/devicetree/bindings/hwmon/lm90.txt b/Documentation/devicetree/bindings/hwmon/lm90.txt
new file mode 100644
index 000000000..97581266e
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/lm90.txt
@@ -0,0 +1,50 @@
+* LM90 series thermometer.
+
+Required node properties:
+- compatible: manufacturer and chip name, one of
+		"adi,adm1032"
+		"adi,adt7461"
+		"adi,adt7461a"
+		"gmt,g781"
+		"national,lm90"
+		"national,lm86"
+		"national,lm89"
+		"national,lm99"
+		"dallas,max6646"
+		"dallas,max6647"
+		"dallas,max6649"
+		"dallas,max6657"
+		"dallas,max6658"
+		"dallas,max6659"
+		"dallas,max6680"
+		"dallas,max6681"
+		"dallas,max6695"
+		"dallas,max6696"
+		"onnn,nct1008"
+		"winbond,w83l771"
+		"nxp,sa56004"
+
+- reg: I2C bus address of the device
+
+- vcc-supply: vcc regulator for the supply voltage.
+
+Optional properties:
+- interrupts: Contains a single interrupt specifier which describes the
+              LM90 "-ALERT" pin output.
+              See interrupt-controller/interrupts.txt for the format.
+
+- #thermal-sensor-cells: should be set to 1. See thermal/thermal.txt for
+	      details. See <include/dt-bindings/thermal/lm90.h> for the
+	      definition of the local, remote and 2nd remote sensor index
+	      constants.
+
+Example LM90 node:
+
+temp-sensor {
+	compatible = "onnn,nct1008";
+	reg = <0x4c>;
+	vcc-supply = <&palmas_ldo6_reg>;
+	interrupt-parent = <&gpio>;
+	interrupts = <TEGRA_GPIO(O, 4) IRQ_TYPE_LEVEL_LOW>;
+	#thermal-sensor-cells = <1>;
+}
diff --git a/Documentation/devicetree/bindings/hwmon/ltc2978.txt b/Documentation/devicetree/bindings/hwmon/ltc2978.txt
new file mode 100644
index 000000000..bf2a47bbd
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/ltc2978.txt
@@ -0,0 +1,46 @@
+ltc2978
+
+Required properties:
+- compatible: should contain one of:
+  * "lltc,ltc2974"
+  * "lltc,ltc2975"
+  * "lltc,ltc2977"
+  * "lltc,ltc2978"
+  * "lltc,ltc2980"
+  * "lltc,ltc3880"
+  * "lltc,ltc3882"
+  * "lltc,ltc3883"
+  * "lltc,ltc3886"
+  * "lltc,ltc3887"
+  * "lltc,ltm2987"
+  * "lltc,ltm4675"
+  * "lltc,ltm4676"
+- reg: I2C slave address
+
+Optional properties:
+- regulators: A node that houses a sub-node for each regulator controlled by
+  the device. Each sub-node is identified using the node's name, with valid
+  values listed below. The content of each sub-node is defined by the
+  standard binding for regulators; see regulator.txt.
+
+Valid names of regulators depend on number of supplies supported per device:
+  * ltc2974, ltc2975 : vout0 - vout3
+  * ltc2977, ltc2980, ltm2987 : vout0 - vout7
+  * ltc2978 : vout0 - vout7
+  * ltc3880, ltc3882, ltc3886 : vout0 - vout1
+  * ltc3883 : vout0
+  * ltm4676 : vout0 - vout1
+
+Example:
+ltc2978@5e {
+	compatible = "lltc,ltc2978";
+	reg = <0x5e>;
+	regulators {
+		vout0 {
+			regulator-name = "FPGA-2.5V";
+		};
+		vout2 {
+			regulator-name = "FPGA-1.5V";
+		};
+	};
+};
diff --git a/Documentation/devicetree/bindings/hwmon/ltc2990.txt b/Documentation/devicetree/bindings/hwmon/ltc2990.txt
new file mode 100644
index 000000000..f92f54029
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/ltc2990.txt
@@ -0,0 +1,36 @@
+ltc2990: Linear Technology LTC2990 power monitor
+
+Required properties:
+- compatible: Must be "lltc,ltc2990"
+- reg: I2C slave address
+- lltc,meas-mode:
+	An array of two integers for configuring the chip measurement mode.
+
+	The first integer defines the bits 2..0 in the control register. In all
+	cases the internal temperature and supply voltage are measured. In
+	addition the following input measurements are enabled per mode:
+
+		0: V1, V2, TR2
+		1: V1-V2, TR2
+		2: V1-V2, V3, V4
+		3: TR1, V3, V4
+		4: TR1, V3-V4
+		5: TR1, TR2
+		6: V1-V2, V3-V4
+		7: V1, V2, V3, V4
+
+	The second integer defines the bits 4..3 in the control register. This
+	allows a subset of the measurements to be enabled:
+
+		0: Internal temperature and supply voltage only
+		1: TR1, V1 or V1-V2 only per mode
+		2: TR2, V3 or V3-V4 only per mode
+		3: All measurements per mode
+
+Example:
+
+ltc2990@4c {
+	compatible = "lltc,ltc2990";
+	reg = <0x4c>;
+	lltc,meas-mode = <7 3>;	/* V1, V2, V3, V4 */
+};
diff --git a/Documentation/devicetree/bindings/hwmon/ltc4151.txt b/Documentation/devicetree/bindings/hwmon/ltc4151.txt
new file mode 100644
index 000000000..d008a5ef5
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/ltc4151.txt
@@ -0,0 +1,18 @@
+LTC4151 High Voltage I2C Current and Voltage Monitor
+
+Required properties:
+- compatible: Must be "lltc,ltc4151"
+- reg: I2C address
+
+Optional properties:
+- shunt-resistor-micro-ohms
+	Shunt resistor value in micro-Ohms
+	Defaults to <1000> if unset.
+
+Example:
+
+ltc4151@6e {
+	compatible = "lltc,ltc4151";
+	reg = <0x6e>;
+	shunt-resistor-micro-ohms = <1500>;
+};
diff --git a/Documentation/devicetree/bindings/hwmon/ltq-cputemp.txt b/Documentation/devicetree/bindings/hwmon/ltq-cputemp.txt
new file mode 100644
index 000000000..33fd00a98
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/ltq-cputemp.txt
@@ -0,0 +1,10 @@
+Lantiq cpu temperatur sensor
+
+Requires node properties:
+- compatible value :
+	"lantiq,cputemp"
+
+Example:
+	cputemp@0 {
+		compatible = "lantiq,cputemp";
+	};
diff --git a/Documentation/devicetree/bindings/hwmon/max1619.txt b/Documentation/devicetree/bindings/hwmon/max1619.txt
new file mode 100644
index 000000000..c70dbbe1e
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/max1619.txt
@@ -0,0 +1,12 @@
+Bindings for MAX1619 Temperature Sensor
+
+Required properties:
+- compatible : "maxim,max1619"
+- reg        : I2C address, one of 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, or
+               0x4d, 0x4e
+
+Example:
+	temp@4c {
+		compatible = "maxim,max1619";
+		reg = <0x4c>;
+	};
diff --git a/Documentation/devicetree/bindings/hwmon/max31785.txt b/Documentation/devicetree/bindings/hwmon/max31785.txt
new file mode 100644
index 000000000..106e08c56
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/max31785.txt
@@ -0,0 +1,22 @@
+Bindings for the Maxim MAX31785 Intelligent Fan Controller
+==========================================================
+
+Reference:
+
+https://datasheets.maximintegrated.com/en/ds/MAX31785.pdf
+
+The Maxim MAX31785 is a PMBus device providing closed-loop, multi-channel fan
+management with temperature and remote voltage sensing. Various fan control
+features are provided, including PWM frequency control, temperature hysteresis,
+dual tachometer measurements, and fan health monitoring.
+
+Required properties:
+- compatible     : One of "maxim,max31785" or "maxim,max31785a"
+- reg            : I2C address, one of 0x52, 0x53, 0x54, 0x55.
+
+Example:
+
+        fans@52 {
+                compatible = "maxim,max31785";
+                reg = <0x52>;
+        };
diff --git a/Documentation/devicetree/bindings/hwmon/max6650.txt b/Documentation/devicetree/bindings/hwmon/max6650.txt
new file mode 100644
index 000000000..f6bd87d8e
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/max6650.txt
@@ -0,0 +1,28 @@
+Bindings for MAX6651 and MAX6650 I2C fan controllers
+
+Reference:
+[1]	https://datasheets.maximintegrated.com/en/ds/MAX6650-MAX6651.pdf
+
+Required properties:
+- compatible : One of "maxim,max6650" or "maxim,max6651"
+- reg        : I2C address, one of 0x1b, 0x1f, 0x4b, 0x48.
+
+Optional properties, default is to retain the chip's current setting:
+- maxim,fan-microvolt : The supply voltage of the fan, either 5000000 uV or
+			12000000 uV.
+- maxim,fan-prescale  : Pre-scaling value, as per datasheet [1]. Lower values
+			allow more fine-grained control of slower fans.
+			Valid: 1, 2, 4, 8, 16.
+- maxim,fan-target-rpm: Initial requested fan rotation speed. If specified, the
+			driver selects closed-loop mode and the requested speed.
+			This ensures the fan is already running before userspace
+			takes over.
+
+Example:
+	fan-max6650: max6650@1b {
+		reg = <0x1b>;
+		compatible = "maxim,max6650";
+		maxim,fan-microvolt = <12000000>;
+		maxim,fan-prescale = <4>;
+		maxim,fan-target-rpm = <1200>;
+	};
diff --git a/Documentation/devicetree/bindings/hwmon/max6697.txt b/Documentation/devicetree/bindings/hwmon/max6697.txt
new file mode 100644
index 000000000..5f793998e
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/max6697.txt
@@ -0,0 +1,64 @@
+max6697 properties
+
+Required properties:
+- compatible:
+	Should be one of
+		maxim,max6581
+		maxim,max6602
+		maxim,max6622
+		maxim,max6636
+		maxim,max6689
+		maxim,max6693
+		maxim,max6694
+		maxim,max6697
+		maxim,max6698
+		maxim,max6699
+- reg: I2C address
+
+Optional properties:
+
+- smbus-timeout-disable
+	Set to disable SMBus timeout. If not specified, SMBus timeout will be
+	enabled.
+- extended-range-enable
+	Only valid for MAX6581. Set to enable extended temperature range.
+	Extended temperature will be disabled if not specified.
+- beta-compensation-enable
+	Only valid for MAX6693 and MX6694. Set to enable beta compensation on
+	remote temperature channel 1.
+	Beta compensation will be disabled if not specified.
+- alert-mask
+	Alert bit mask. Alert disabled for bits set.
+	Select bit 0 for local temperature, bit 1..7 for remote temperatures.
+	If not specified, alert will be enabled for all channels.
+- over-temperature-mask
+	Over-temperature bit mask. Over-temperature reporting disabled for
+	bits set.
+	Select bit 0 for local temperature, bit 1..7 for remote temperatures.
+	If not specified, over-temperature reporting will be enabled for all
+	channels.
+- resistance-cancellation
+	Boolean for all chips other than MAX6581. Set to enable resistance
+	cancellation on remote temperature channel 1.
+	For MAX6581, resistance cancellation enabled for all channels if
+	specified as boolean, otherwise as per bit mask specified.
+	Only supported for remote temperatures (bit 1..7).
+	If not specified, resistance cancellation will be disabled for all
+	channels.
+- transistor-ideality
+	For MAX6581 only. Two values; first is bit mask, second is ideality
+	select value as per MAX6581 data sheet. Select bit 1..7 for remote
+	channels.
+	Transistor ideality will be initialized to default (1.008) if not
+	specified.
+
+Example:
+
+temp-sensor@1a {
+	compatible = "maxim,max6697";
+	reg = <0x1a>;
+	smbus-timeout-disable;
+	resistance-cancellation;
+	alert-mask = <0x72>;
+	over-temperature-mask = <0x7f>;
+};
diff --git a/Documentation/devicetree/bindings/hwmon/mcp3021.txt b/Documentation/devicetree/bindings/hwmon/mcp3021.txt
new file mode 100644
index 000000000..294318ba6
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/mcp3021.txt
@@ -0,0 +1,21 @@
+mcp3021 properties
+
+Required properties:
+- compatible: Must be one of the following:
+	- "microchip,mcp3021" for mcp3021
+	- "microchip,mcp3221" for mcp3221
+- reg: I2C address
+
+Optional properties:
+
+- reference-voltage-microvolt
+	Reference voltage in microvolt (uV)
+
+Example:
+
+mcp3021@4d {
+	compatible = "microchip,mcp3021";
+	reg = <0x4d>;
+
+	reference-voltage-microvolt = <4500000>; /* 4.5 V */
+};
diff --git a/Documentation/devicetree/bindings/hwmon/npcm750-pwm-fan.txt b/Documentation/devicetree/bindings/hwmon/npcm750-pwm-fan.txt
new file mode 100644
index 000000000..28f43e929
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/npcm750-pwm-fan.txt
@@ -0,0 +1,84 @@
+Nuvoton NPCM7xx PWM and Fan Tacho controller device
+
+The Nuvoton BMC NPCM7XX supports 8 Pulse-width modulation (PWM)
+controller outputs and 16 Fan tachometer controller inputs.
+
+Required properties for pwm-fan node
+- #address-cells : should be 1.
+- #size-cells	: should be 0.
+- compatible	: "nuvoton,npcm750-pwm-fan" for Poleg NPCM7XX.
+- reg			: specifies physical base address and size of the registers.
+- reg-names	: must contain:
+					* "pwm" for the PWM registers.
+					* "fan" for the Fan registers.
+- clocks		: phandle of reference clocks.
+- clock-names	: must contain
+					* "pwm" for PWM controller operating clock.
+					* "fan" for Fan controller operating clock.
+- interrupts	: contain the Fan interrupts with flags for falling edge.
+- pinctrl-names	: a pinctrl state named "default" must be defined.
+- pinctrl-0	: phandle referencing pin configuration of the PWM and Fan
+					controller ports.
+
+fan subnode format:
+===================
+Under fan subnode can be upto 8 child nodes, each child node representing a fan.
+Each fan subnode must have one PWM channel and atleast one Fan tach channel.
+
+For PWM channel can be configured cooling-levels to create cooling device.
+Cooling device could be bound to a thermal zone for the thermal control.
+
+Required properties for each child node:
+- reg : specify the PWM output channel.
+	integer value in the range 0 through 7, that represent
+	the PWM channel number that used.
+
+- fan-tach-ch : specify the Fan tach input channel.
+		integer value in the range 0 through 15, that represent
+		the fan tach channel number that used.
+
+		At least one Fan tach input channel is required
+
+Optional property for each child node:
+- cooling-levels: PWM duty cycle values in a range from 0 to 255
+                  which correspond to thermal cooling states.
+
+Examples:
+
+pwm_fan:pwm-fan-controller@103000 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	compatible = "nuvoton,npcm750-pwm-fan";
+	reg = <0x103000 0x2000>,
+		<0x180000 0x8000>;
+	reg-names = "pwm", "fan";
+	clocks = <&clk NPCM7XX_CLK_APB3>,
+		<&clk NPCM7XX_CLK_APB4>;
+	clock-names = "pwm","fan";
+	interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>,
+			<GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>,
+			<GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>,
+			<GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>,
+			<GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>,
+			<GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>,
+			<GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>,
+			<GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm0_pins &pwm1_pins &pwm2_pins
+			&fanin0_pins &fanin1_pins &fanin2_pins
+			&fanin3_pins &fanin4_pins>;
+	fan@0 {
+		reg = <0x00>;
+		fan-tach-ch = /bits/ 8 <0x00 0x01>;
+		cooling-levels = <127 255>;
+	};
+	fan@1 {
+		reg = <0x01>;
+		fan-tach-ch = /bits/ 8 <0x02 0x03>;
+	};
+	fan@2 {
+		reg = <0x02>;
+		fan-tach-ch = /bits/ 8 <0x04>;
+	};
+
+};
diff --git a/Documentation/devicetree/bindings/hwmon/nsa320-mcu.txt b/Documentation/devicetree/bindings/hwmon/nsa320-mcu.txt
new file mode 100644
index 000000000..0863e067c
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/nsa320-mcu.txt
@@ -0,0 +1,20 @@
+Bindings for the fan / temperature monitor microcontroller used on
+the Zyxel NSA 320 and several subsequent models.
+
+Required properties:
+- compatible	: "zyxel,nsa320-mcu"
+- data-gpios	: The GPIO pin connected to the data line on the MCU
+- clk-gpios	: The GPIO pin connected to the clock line on the MCU
+- act-gpios	: The GPIO pin connected to the active line on the MCU
+
+Example:
+
+	hwmon {
+		compatible = "zyxel,nsa320-mcu";
+		pinctrl-0 = <&pmx_mcu_data &pmx_mcu_clk &pmx_mcu_act>;
+		pinctrl-names = "default";
+
+		data-gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
+		clk-gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>;
+		act-gpios = <&gpio0 17 GPIO_ACTIVE_LOW>;
+	};
diff --git a/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt b/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt
new file mode 100644
index 000000000..c3b9c4cfe
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt
@@ -0,0 +1,43 @@
+NTC Thermistor hwmon sensors
+-------------------------------
+
+Requires node properties:
+- "compatible" value : one of
+	"epcos,b57330v2103"
+	"murata,ncp15wb473"
+	"murata,ncp18wb473"
+	"murata,ncp21wb473"
+	"murata,ncp03wb473"
+	"murata,ncp15wl333"
+	"murata,ncp03wf104"
+	"murata,ncp15xh103"
+
+/* Usage of vendor name "ntc" is deprecated */
+<DEPRECATED>	"ntc,ncp15wb473"
+<DEPRECATED>	"ntc,ncp18wb473"
+<DEPRECATED>	"ntc,ncp21wb473"
+<DEPRECATED>	"ntc,ncp03wb473"
+<DEPRECATED>	"ntc,ncp15wl333"
+
+- "pullup-uv"	Pull up voltage in micro volts
+- "pullup-ohm"	Pull up resistor value in ohms
+- "pulldown-ohm" Pull down resistor value in ohms
+- "connected-positive" Always ON, If not specified.
+		Status change is possible.
+- "io-channels"	Channel node of ADC to be used for
+		conversion.
+
+Optional node properties:
+- "#thermal-sensor-cells" Used to expose itself to thermal fw.
+
+Read more about iio bindings at
+	Documentation/devicetree/bindings/iio/iio-bindings.txt
+
+Example:
+	ncp15wb473@0 {
+		compatible = "murata,ncp15wb473";
+		pullup-uv = <1800000>;
+		pullup-ohm = <47000>;
+		pulldown-ohm = <0>;
+		io-channels = <&adc 3>;
+	};
diff --git a/Documentation/devicetree/bindings/hwmon/pwm-fan.txt b/Documentation/devicetree/bindings/hwmon/pwm-fan.txt
new file mode 100644
index 000000000..c6d533202
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/pwm-fan.txt
@@ -0,0 +1,37 @@
+Bindings for a fan connected to the PWM lines
+
+Required properties:
+- compatible	: "pwm-fan"
+- pwms		: the PWM that is used to control the PWM fan
+- cooling-levels      : PWM duty cycle values in a range from 0 to 255
+			which correspond to thermal cooling states
+
+Example:
+	fan0: pwm-fan {
+		compatible = "pwm-fan";
+		cooling-min-state = <0>;
+		cooling-max-state = <3>;
+		#cooling-cells = <2>;
+		pwms = <&pwm 0 10000 0>;
+		cooling-levels = <0 102 170 230>;
+	};
+
+	thermal-zones {
+		cpu_thermal: cpu-thermal {
+			     thermal-sensors = <&tmu 0>;
+			     polling-delay-passive = <0>;
+			     polling-delay = <0>;
+			     trips {
+					cpu_alert1: cpu-alert1 {
+						    temperature = <100000>; /* millicelsius */
+						    hysteresis = <2000>; /* millicelsius */
+						    type = "passive";
+					};
+			     };
+			     cooling-maps {
+					map0 {
+						    trip = <&cpu_alert1>;
+						    cooling-device = <&fan0 0 1>;
+					};
+			     };
+		};
diff --git a/Documentation/devicetree/bindings/hwmon/sht15.txt b/Documentation/devicetree/bindings/hwmon/sht15.txt
new file mode 100644
index 000000000..6a80277cc
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/sht15.txt
@@ -0,0 +1,19 @@
+Sensirion SHT15 Humidity and Temperature Sensor
+
+Required properties:
+
+ - "compatible": must be "sensirion,sht15".
+ - "data-gpios": GPIO connected to the data line.
+ - "clk-gpios": GPIO connected to the clock line.
+ - "vcc-supply": regulator that drives the VCC pin.
+
+Example:
+
+	sensor {
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_sensor>;
+		compatible = "sensirion,sht15";
+		clk-gpios = <&gpio4 12 0>;
+		data-gpios = <&gpio4 13 0>;
+		vcc-supply = <&reg_sht15>;
+	};
diff --git a/Documentation/devicetree/bindings/hwmon/stts751.txt b/Documentation/devicetree/bindings/hwmon/stts751.txt
new file mode 100644
index 000000000..3ee1dc30e
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/stts751.txt
@@ -0,0 +1,15 @@
+* STTS751 thermometer.
+
+Required node properties:
+- compatible: "stts751"
+- reg: I2C bus address of the device
+
+Optional properties:
+- smbus-timeout-disable: when set, the smbus timeout function will be disabled
+
+Example stts751 node:
+
+temp-sensor {
+	compatible = "stts751";
+	reg = <0x48>;
+}
diff --git a/Documentation/devicetree/bindings/hwmon/tmp108.txt b/Documentation/devicetree/bindings/hwmon/tmp108.txt
new file mode 100644
index 000000000..8c4b10df8
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/tmp108.txt
@@ -0,0 +1,14 @@
+TMP108 temperature sensor
+-------------------------
+
+This device supports I2C only.
+
+Requires node properties:
+- compatible : "ti,tmp108"
+- reg : the I2C address of the device. This is 0x48, 0x49, 0x4a, or 0x4b.
+
+Example:
+	tmp108@48 {
+		compatible = "ti,tmp108";
+		reg = <0x48>;
+	};
diff --git a/Documentation/devicetree/bindings/hwmon/vexpress.txt b/Documentation/devicetree/bindings/hwmon/vexpress.txt
new file mode 100644
index 000000000..9c27ed694
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/vexpress.txt
@@ -0,0 +1,23 @@
+Versatile Express hwmon sensors
+-------------------------------
+
+Requires node properties:
+- "compatible" value : one of
+	"arm,vexpress-volt"
+	"arm,vexpress-amp"
+	"arm,vexpress-temp"
+	"arm,vexpress-power"
+	"arm,vexpress-energy"
+- "arm,vexpress-sysreg,func" when controlled via vexpress-sysreg
+  (see Documentation/devicetree/bindings/arm/vexpress-sysreg.txt
+  for more details)
+
+Optional node properties:
+- label : string describing the monitored value
+
+Example:
+	energy@0 {
+		compatible = "arm,vexpress-energy";
+		arm,vexpress-sysreg,func = <13 0>;
+		label = "A15 Jcore";
+	};