10 files changed, 250 insertions, 0 deletions
diff --git a/dts/Bindings/iio/accel/dmard06.txt b/dts/Bindings/iio/accel/dmard06.txt
new file mode 100644
index 0000000000..ce105a12c6
--- /dev/null
+++ b/dts/Bindings/iio/accel/dmard06.txt
@@ -0,0 +1,19 @@
+Device tree bindings for Domintech DMARD05, DMARD06, DMARD07 accelerometers
+
+Required properties:
+ - compatible		: Should be "domintech,dmard05"
+				 or "domintech,dmard06"
+				 or "domintech,dmard07"
+ - reg			: I2C address of the chip. Should be 0x1c
+
+Example:
+	&i2c1 {
+		/* ... */
+
+		accelerometer@1c {
+			compatible = "domintech,dmard06";
+			reg = <0x1c>;
+		};
+
+		/* ... */
+	};
diff --git a/dts/Bindings/iio/accel/kionix,kxsd9.txt b/dts/Bindings/iio/accel/kionix,kxsd9.txt
new file mode 100644
index 0000000000..b25bf3a77e
--- /dev/null
+++ b/dts/Bindings/iio/accel/kionix,kxsd9.txt
@@ -0,0 +1,22 @@
+Kionix KXSD9 Accelerometer device tree bindings
+
+Required properties:
+ - compatible: 		should be set to "kionix,kxsd9"
+ - reg:			i2c slave address
+
+Optional properties:
+ - vdd-supply:		The input supply for VDD
+ - iovdd-supply:	The input supply for IOVDD
+ - interrupts:		The movement detection interrupt
+ - mount-matrix:	See mount-matrix.txt
+
+Example:
+
+kxsd9@18 {
+	compatible = "kionix,kxsd9";
+	reg = <0x18>;
+	interrupt-parent = <&foo>;
+	interrupts = <57 IRQ_TYPE_EDGE_FALLING>;
+	iovdd-supply = <&bar>;
+	vdd-supply = <&baz>;
+};
diff --git a/dts/Bindings/iio/adc/mt6577_auxadc.txt b/dts/Bindings/iio/adc/mt6577_auxadc.txt
new file mode 100644
index 0000000000..68c45cbbe3
--- /dev/null
+++ b/dts/Bindings/iio/adc/mt6577_auxadc.txt
@@ -0,0 +1,29 @@
+* Mediatek AUXADC - Analog to Digital Converter on Mediatek mobile soc (mt65xx/mt81xx/mt27xx)
+===============
+
+The Auxiliary Analog/Digital Converter (AUXADC) is an ADC found
+in some Mediatek SoCs which among other things measures the temperatures
+in the SoC. It can be used directly with register accesses, but it is also
+used by thermal controller which reads the temperatures from the AUXADC
+directly via its own bus interface. See
+Documentation/devicetree/bindings/thermal/mediatek-thermal.txt
+for the Thermal Controller which holds a phandle to the AUXADC.
+
+Required properties:
+  - compatible: Should be one of:
+    - "mediatek,mt2701-auxadc": For MT2701 family of SoCs
+    - "mediatek,mt8173-auxadc": For MT8173 family of SoCs
+  - reg: Address range of the AUXADC unit.
+  - clocks: Should contain a clock specifier for each entry in clock-names
+  - clock-names: Should contain "main".
+  - #io-channel-cells: Should be 1, see ../iio-bindings.txt
+
+Example:
+
+auxadc: adc@11001000 {
+	compatible = "mediatek,mt2701-auxadc";
+	reg = <0 0x11001000 0 0x1000>;
+	clocks = <&pericfg CLK_PERI_AUXADC>;
+	clock-names = "main";
+	#io-channel-cells = <1>;
+};
diff --git a/dts/Bindings/iio/adc/ti-adc12138.txt b/dts/Bindings/iio/adc/ti-adc12138.txt
new file mode 100644
index 0000000000..049a1d36f0
--- /dev/null
+++ b/dts/Bindings/iio/adc/ti-adc12138.txt
@@ -0,0 +1,37 @@
+* Texas Instruments' ADC12130/ADC12132/ADC12138
+
+Required properties:
+ - compatible: Should be one of
+	* "ti,adc12130"
+	* "ti,adc12132"
+	* "ti,adc12138"
+ - reg: SPI chip select number for the device
+ - interrupts: Should contain interrupt for EOC (end of conversion)
+ - clocks: phandle to conversion clock input
+ - spi-max-frequency: Definision as per
+	Documentation/devicetree/bindings/spi/spi-bus.txt
+ - vref-p-supply: The regulator supply for positive analog voltage reference
+
+Optional properties:
+ - vref-n-supply: The regulator supply for negative analog voltage reference
+	(Note that this must not go below GND or exceed vref-p)
+	If not specified, this is assumed to be analog ground.
+ - ti,acquisition-time: The number of conversion clock periods for the S/H's
+	acquisition time.  Should be one of 6, 10, 18, 34.  If not specified,
+	default value of 10 is used.
+	For high source impedances, this value can be increased to 18 or 34.
+	For less ADC accuracy and/or slower CCLK frequencies this value may be
+	decreased to 6.  See section 6.0 INPUT SOURCE RESISTANCE in the
+	datasheet for details.
+
+Example:
+adc@0 {
+	compatible = "ti,adc12138";
+	reg = <0>;
+	interrupts = <28 IRQ_TYPE_EDGE_RISING>;
+	interrupt-parent = <&gpio1>;
+	clocks = <&cclk>;
+	vref-p-supply = <&ldo4_reg>;
+	spi-max-frequency = <5000000>;
+	ti,acquisition-time = <6>;
+};
diff --git a/dts/Bindings/iio/adc/ti-adc161s626.txt b/dts/Bindings/iio/adc/ti-adc161s626.txt
new file mode 100644
index 0000000000..9ed2315781
--- /dev/null
+++ b/dts/Bindings/iio/adc/ti-adc161s626.txt
@@ -0,0 +1,16 @@
+* Texas Instruments ADC141S626 and ADC161S626 chips
+
+Required properties:
+ - compatible: Should be "ti,adc141s626" or "ti,adc161s626"
+ - reg: spi chip select number for the device
+
+Recommended properties:
+ - spi-max-frequency: Definition as per
+		Documentation/devicetree/bindings/spi/spi-bus.txt
+
+Example:
+adc@0 {
+	compatible = "ti,adc161s626";
+	reg = <0>;
+	spi-max-frequency = <4300000>;
+};
diff --git a/dts/Bindings/iio/chemical/atlas,orp-sm.txt b/dts/Bindings/iio/chemical/atlas,orp-sm.txt
new file mode 100644
index 0000000000..5d8b687d5e
--- /dev/null
+++ b/dts/Bindings/iio/chemical/atlas,orp-sm.txt
@@ -0,0 +1,22 @@
+* Atlas Scientific ORP-SM OEM sensor
+
+https://www.atlas-scientific.com/_files/_datasheets/_oem/ORP_oem_datasheet.pdf
+
+Required properties:
+
+  - compatible: must be "atlas,orp-sm"
+  - reg: the I2C address of the sensor
+  - interrupt-parent: should be the phandle for the interrupt controller
+  - interrupts: the sole interrupt generated by the device
+
+  Refer to interrupt-controller/interrupts.txt for generic interrupt client
+  node bindings.
+
+Example:
+
+atlas@66 {
+	compatible = "atlas,orp-sm";
+	reg = <0x66>;
+	interrupt-parent = <&gpio1>;
+	interrupts = <16 2>;
+};
diff --git a/dts/Bindings/iio/magnetometer/ak8974.txt b/dts/Bindings/iio/magnetometer/ak8974.txt
new file mode 100644
index 0000000000..77d5aba1bd
--- /dev/null
+++ b/dts/Bindings/iio/magnetometer/ak8974.txt
@@ -0,0 +1,29 @@
+* Asahi Kasei AK8974 magnetometer sensor
+
+Required properties:
+
+- compatible : should be "asahi-kasei,ak8974"
+- reg : the I2C address of the magnetometer
+
+Optional properties:
+
+- avdd-supply: regulator supply for the analog voltage
+  (see regulator/regulator.txt)
+- dvdd-supply: regulator supply for the digital voltage
+  (see regulator/regulator.txt)
+- interrupts: data ready (DRDY) and interrupt (INT1) lines
+  from the chip, the DRDY interrupt must be placed first.
+  The interrupts can be triggered on rising or falling
+  edges alike.
+- mount-matrix: an optional 3x3 mounting rotation matrix
+
+Example:
+
+ak8974@0f {
+	compatible = "asahi-kasei,ak8974";
+	reg = <0x0f>;
+	avdd-supply = <&foo_reg>;
+	dvdd-supply = <&bar_reg>;
+	interrupts = <0 IRQ_TYPE_EDGE_RISING>,
+		     <1 IRQ_TYPE_EDGE_RISING>;
+};
diff --git a/dts/Bindings/iio/pressure/zpa2326.txt b/dts/Bindings/iio/pressure/zpa2326.txt
new file mode 100644
index 0000000000..fb85de676e
--- /dev/null
+++ b/dts/Bindings/iio/pressure/zpa2326.txt
@@ -0,0 +1,31 @@
+Murata ZPA2326 pressure sensor
+
+Pressure sensor from Murata with SPI and I2C bus interfaces.
+
+Required properties:
+- compatible: "murata,zpa2326"
+- reg: the I2C address or SPI chip select the device will respond to
+
+Recommended properties for SPI bus usage:
+- spi-max-frequency: maximum SPI bus frequency as documented in
+  Documentation/devicetree/bindings/spi/spi-bus.txt
+
+Optional properties:
+- vref-supply: an optional regulator that needs to be on to provide VREF
+  power to the sensor
+- vdd-supply: an optional regulator that needs to be on to provide VDD
+  power to the sensor
+- interrupt-parent: phandle to the parent interrupt controller as documented in
+  Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
+- interrupts: interrupt mapping for IRQ as documented in
+  Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
+
+Example:
+
+zpa2326@5c {
+	compatible = "murata,zpa2326";
+	reg = <0x5c>;
+	interrupt-parent = <&gpio>;
+	interrupts = <12>;
+	vdd-supply = <&ldo_1v8_gnss>;
+};
diff --git a/dts/Bindings/iio/proximity/sx9500.txt b/dts/Bindings/iio/proximity/sx9500.txt
new file mode 100644
index 0000000000..b301dd2b35
--- /dev/null
+++ b/dts/Bindings/iio/proximity/sx9500.txt
@@ -0,0 +1,24 @@
+Semtech's SX9500 capacitive proximity button device driver
+
+Required properties:
+	- compatible: must be "semtech,sx9500"
+	- reg: i2c address where to find the device
+	- interrupt-parent : should be the phandle for the interrupt controller
+	- interrupts : the sole interrupt generated by the device
+
+	Refer to interrupt-controller/interrupts.txt for generic
+	interrupt client node bindings.
+
+Optional properties:
+	- reset-gpios: Reference to the GPIO connected to the device's active
+	  low reset pin.
+
+Example:
+
+sx9500@28 {
+	compatible = "semtech,sx9500";
+	reg = <0x28>;
+	interrupt-parent = <&gpio2>;
+	interrupts = <16 IRQ_TYPE_LEVEL_LOW>;
+	reset-gpios = <&gpio2 10 GPIO_ACTIVE_LOW>;
+};
diff --git a/dts/Bindings/iio/temperature/maxim_thermocouple.txt b/dts/Bindings/iio/temperature/maxim_thermocouple.txt
new file mode 100644
index 0000000000..28bc5c4d96
--- /dev/null
+++ b/dts/Bindings/iio/temperature/maxim_thermocouple.txt
@@ -0,0 +1,21 @@
+Maxim thermocouple support
+
+* https://datasheets.maximintegrated.com/en/ds/MAX6675.pdf
+* https://datasheets.maximintegrated.com/en/ds/MAX31855.pdf
+
+Required properties:
+
+	- compatible: must be "maxim,max31855" or "maxim,max6675"
+	- reg: SPI chip select number for the device
+	- spi-max-frequency: must be 4300000
+	- spi-cpha: must be defined for max6675 to enable SPI mode 1
+
+	Refer to spi/spi-bus.txt for generic SPI slave bindings.
+
+Example:
+
+	max31855@0 {
+		compatible = "maxim,max31855";
+		reg = <0>;
+		spi-max-frequency = <4300000>;
+	};