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-rw-r--r--Documentation/devicetree/bindings/iio/accel/adi,adis16240.yaml53
-rw-r--r--Documentation/devicetree/bindings/iio/accel/adi,adxl345.yaml80
-rw-r--r--Documentation/devicetree/bindings/iio/accel/adi,adxl372.yaml67
-rw-r--r--Documentation/devicetree/bindings/iio/accel/bma180.txt35
-rw-r--r--Documentation/devicetree/bindings/iio/accel/bosch,bma400.yaml56
-rw-r--r--Documentation/devicetree/bindings/iio/accel/dmard06.txt19
-rw-r--r--Documentation/devicetree/bindings/iio/accel/kionix,kxcjk1013.txt24
-rw-r--r--Documentation/devicetree/bindings/iio/accel/kionix,kxsd9.yaml69
-rw-r--r--Documentation/devicetree/bindings/iio/accel/lis302.txt119
-rw-r--r--Documentation/devicetree/bindings/iio/accel/mma8452.txt35
-rw-r--r--Documentation/devicetree/bindings/iio/adc/adc.txt23
-rw-r--r--Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml54
-rw-r--r--Documentation/devicetree/bindings/iio/adc/adi,ad7124.yaml160
-rw-r--r--Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml123
-rw-r--r--Documentation/devicetree/bindings/iio/adc/adi,ad7291.yaml47
-rw-r--r--Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml109
-rw-r--r--Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml141
-rw-r--r--Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml90
-rw-r--r--Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml88
-rw-r--r--Documentation/devicetree/bindings/iio/adc/adi,ad7923.yaml69
-rw-r--r--Documentation/devicetree/bindings/iio/adc/adi,ad7949.yaml57
-rw-r--r--Documentation/devicetree/bindings/iio/adc/adi,ad9467.yaml74
-rw-r--r--Documentation/devicetree/bindings/iio/adc/adi,axi-adc.yaml62
-rw-r--r--Documentation/devicetree/bindings/iio/adc/allwinner,sun8i-a33-ths.yaml43
-rw-r--r--Documentation/devicetree/bindings/iio/adc/amlogic,meson-saradc.yaml149
-rw-r--r--Documentation/devicetree/bindings/iio/adc/aspeed,ast2400-adc.yaml55
-rw-r--r--Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt50
-rw-r--r--Documentation/devicetree/bindings/iio/adc/at91_adc.txt83
-rw-r--r--Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml67
-rw-r--r--Documentation/devicetree/bindings/iio/adc/axp20x_adc.txt48
-rw-r--r--Documentation/devicetree/bindings/iio/adc/brcm,iproc-static-adc.txt40
-rw-r--r--Documentation/devicetree/bindings/iio/adc/cosmic,10001-adc.yaml59
-rw-r--r--Documentation/devicetree/bindings/iio/adc/dlg,da9150-gpadc.yaml35
-rw-r--r--Documentation/devicetree/bindings/iio/adc/envelope-detector.txt54
-rw-r--r--Documentation/devicetree/bindings/iio/adc/fsl,imx25-gcq.yaml131
-rw-r--r--Documentation/devicetree/bindings/iio/adc/fsl,imx7d-adc.yaml62
-rw-r--r--Documentation/devicetree/bindings/iio/adc/fsl,vf610-adc.yaml81
-rw-r--r--Documentation/devicetree/bindings/iio/adc/holt,hi8435.yaml50
-rw-r--r--Documentation/devicetree/bindings/iio/adc/ingenic,adc.yaml71
-rw-r--r--Documentation/devicetree/bindings/iio/adc/lltc,ltc2496.yaml48
-rw-r--r--Documentation/devicetree/bindings/iio/adc/lltc,ltc2497.yaml46
-rw-r--r--Documentation/devicetree/bindings/iio/adc/marvell,berlin2-adc.yaml50
-rw-r--r--Documentation/devicetree/bindings/iio/adc/maxim,max11100.yaml49
-rw-r--r--Documentation/devicetree/bindings/iio/adc/maxim,max1118.yaml62
-rw-r--r--Documentation/devicetree/bindings/iio/adc/maxim,max1238.yaml78
-rw-r--r--Documentation/devicetree/bindings/iio/adc/maxim,max1241.yaml67
-rw-r--r--Documentation/devicetree/bindings/iio/adc/maxim,max1363.yaml52
-rw-r--r--Documentation/devicetree/bindings/iio/adc/maxim,max9611.yaml51
-rw-r--r--Documentation/devicetree/bindings/iio/adc/microchip,mcp3201.yaml77
-rw-r--r--Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml72
-rw-r--r--Documentation/devicetree/bindings/iio/adc/motorola,cpcap-adc.yaml53
-rw-r--r--Documentation/devicetree/bindings/iio/adc/mt6577_auxadc.txt33
-rw-r--r--Documentation/devicetree/bindings/iio/adc/nuvoton,nau7802.yaml50
-rw-r--r--Documentation/devicetree/bindings/iio/adc/nuvoton,npcm750-adc.yaml64
-rw-r--r--Documentation/devicetree/bindings/iio/adc/nxp,lpc1850-adc.yaml61
-rw-r--r--Documentation/devicetree/bindings/iio/adc/nxp,lpc3220-adc.yaml50
-rw-r--r--Documentation/devicetree/bindings/iio/adc/palmas-gpadc.txt48
-rw-r--r--Documentation/devicetree/bindings/iio/adc/qcom,pm8xxx-xoadc.txt157
-rw-r--r--Documentation/devicetree/bindings/iio/adc/qcom,spmi-iadc.txt46
-rw-r--r--Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml280
-rw-r--r--Documentation/devicetree/bindings/iio/adc/renesas,gyroadc.txt98
-rw-r--r--Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml80
-rw-r--r--Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml167
-rw-r--r--Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.yaml37
-rw-r--r--Documentation/devicetree/bindings/iio/adc/sprd,sc2720-adc.yaml72
-rw-r--r--Documentation/devicetree/bindings/iio/adc/st,stm32-adc.yaml453
-rw-r--r--Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.yaml329
-rw-r--r--Documentation/devicetree/bindings/iio/adc/st,stmpe-adc.yaml45
-rw-r--r--Documentation/devicetree/bindings/iio/adc/ti,adc0832.yaml56
-rw-r--r--Documentation/devicetree/bindings/iio/adc/ti,adc108s102.yaml47
-rw-r--r--Documentation/devicetree/bindings/iio/adc/ti,adc12138.yaml86
-rw-r--r--Documentation/devicetree/bindings/iio/adc/ti,adc128s052.yaml59
-rw-r--r--Documentation/devicetree/bindings/iio/adc/ti,adc161s626.yaml51
-rw-r--r--Documentation/devicetree/bindings/iio/adc/ti,ads1015.yaml112
-rw-r--r--Documentation/devicetree/bindings/iio/adc/ti,ads7950.yaml65
-rw-r--r--Documentation/devicetree/bindings/iio/adc/ti,ads8344.yaml51
-rw-r--r--Documentation/devicetree/bindings/iio/adc/ti,ads8688.yaml49
-rw-r--r--Documentation/devicetree/bindings/iio/adc/ti,tlc4541.yaml52
-rw-r--r--Documentation/devicetree/bindings/iio/adc/ti,twl4030-madc.yaml48
-rw-r--r--Documentation/devicetree/bindings/iio/adc/ti-adc084s021.txt19
-rw-r--r--Documentation/devicetree/bindings/iio/adc/ti-ads124s08.txt25
-rw-r--r--Documentation/devicetree/bindings/iio/adc/xilinx-xadc.txt112
-rw-r--r--Documentation/devicetree/bindings/iio/addac/adi,ad74413r.yaml158
-rw-r--r--Documentation/devicetree/bindings/iio/afe/current-sense-amplifier.txt26
-rw-r--r--Documentation/devicetree/bindings/iio/afe/current-sense-shunt.txt41
-rw-r--r--Documentation/devicetree/bindings/iio/afe/voltage-divider.txt53
-rw-r--r--Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml51
-rw-r--r--Documentation/devicetree/bindings/iio/chemical/ams,ccs811.yaml53
-rw-r--r--Documentation/devicetree/bindings/iio/chemical/atlas,sensor.yaml61
-rw-r--r--Documentation/devicetree/bindings/iio/chemical/bme680.txt11
-rw-r--r--Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.yaml52
-rw-r--r--Documentation/devicetree/bindings/iio/chemical/sensirion,scd30.yaml68
-rw-r--r--Documentation/devicetree/bindings/iio/chemical/sensirion,sgp30.txt15
-rw-r--r--Documentation/devicetree/bindings/iio/chemical/sensirion,sps30.yaml41
-rw-r--r--Documentation/devicetree/bindings/iio/common.yaml37
-rw-r--r--Documentation/devicetree/bindings/iio/dac/ad5592r.txt155
-rw-r--r--Documentation/devicetree/bindings/iio/dac/ad5755.txt124
-rw-r--r--Documentation/devicetree/bindings/iio/dac/ad5758.txt83
-rw-r--r--Documentation/devicetree/bindings/iio/dac/ad7303.txt23
-rw-r--r--Documentation/devicetree/bindings/iio/dac/adi,ad5770r.yaml190
-rw-r--r--Documentation/devicetree/bindings/iio/dac/dpot-dac.txt41
-rw-r--r--Documentation/devicetree/bindings/iio/dac/ds4424.txt20
-rw-r--r--Documentation/devicetree/bindings/iio/dac/lltc,ltc1660.yaml51
-rw-r--r--Documentation/devicetree/bindings/iio/dac/lltc,ltc2632.yaml77
-rw-r--r--Documentation/devicetree/bindings/iio/dac/lpc1850-dac.txt19
-rw-r--r--Documentation/devicetree/bindings/iio/dac/max5821.txt14
-rw-r--r--Documentation/devicetree/bindings/iio/dac/mcp4725.txt35
-rw-r--r--Documentation/devicetree/bindings/iio/dac/st,stm32-dac.yaml110
-rw-r--r--Documentation/devicetree/bindings/iio/dac/ti,dac5571.txt24
-rw-r--r--Documentation/devicetree/bindings/iio/dac/ti,dac7311.txt23
-rw-r--r--Documentation/devicetree/bindings/iio/dac/ti,dac7512.txt20
-rw-r--r--Documentation/devicetree/bindings/iio/dac/ti,dac7612.txt28
-rw-r--r--Documentation/devicetree/bindings/iio/dac/ti-dac082s085.txt34
-rw-r--r--Documentation/devicetree/bindings/iio/dac/vf610-dac.txt20
-rw-r--r--Documentation/devicetree/bindings/iio/frequency/adf4350.txt86
-rw-r--r--Documentation/devicetree/bindings/iio/frequency/adf4371.yaml67
-rw-r--r--Documentation/devicetree/bindings/iio/gyroscope/adi,adxrs290.yaml59
-rw-r--r--Documentation/devicetree/bindings/iio/gyroscope/bmg160.txt20
-rw-r--r--Documentation/devicetree/bindings/iio/gyroscope/invensense,mpu3050.txt45
-rw-r--r--Documentation/devicetree/bindings/iio/gyroscope/nxp,fxas21002c.txt31
-rw-r--r--Documentation/devicetree/bindings/iio/health/afe4403.txt33
-rw-r--r--Documentation/devicetree/bindings/iio/health/afe4404.txt29
-rw-r--r--Documentation/devicetree/bindings/iio/health/max30100.txt28
-rw-r--r--Documentation/devicetree/bindings/iio/health/max30102.txt33
-rw-r--r--Documentation/devicetree/bindings/iio/humidity/dht11.txt14
-rw-r--r--Documentation/devicetree/bindings/iio/humidity/hdc100x.txt17
-rw-r--r--Documentation/devicetree/bindings/iio/humidity/hts221.txt30
-rw-r--r--Documentation/devicetree/bindings/iio/humidity/htu21.txt13
-rw-r--r--Documentation/devicetree/bindings/iio/humidity/ti,hdc2010.yaml47
-rw-r--r--Documentation/devicetree/bindings/iio/iio-bindings.txt102
-rw-r--r--Documentation/devicetree/bindings/iio/impedance-analyzer/ad5933.txt26
-rw-r--r--Documentation/devicetree/bindings/iio/imu/adi,adis16460.yaml57
-rw-r--r--Documentation/devicetree/bindings/iio/imu/adi,adis16475.yaml138
-rw-r--r--Documentation/devicetree/bindings/iio/imu/adi,adis16480.txt86
-rw-r--r--Documentation/devicetree/bindings/iio/imu/bosch,bmi160.yaml93
-rw-r--r--Documentation/devicetree/bindings/iio/imu/inv_mpu6050.txt67
-rw-r--r--Documentation/devicetree/bindings/iio/imu/invensense,icm42600.yaml96
-rw-r--r--Documentation/devicetree/bindings/iio/imu/nxp,fxos8700.yaml80
-rw-r--r--Documentation/devicetree/bindings/iio/imu/st_lsm6dsx.txt48
-rw-r--r--Documentation/devicetree/bindings/iio/light/adux1020.yaml49
-rw-r--r--Documentation/devicetree/bindings/iio/light/ams,as73211.yaml54
-rw-r--r--Documentation/devicetree/bindings/iio/light/amstaos,tsl2563.yaml50
-rw-r--r--Documentation/devicetree/bindings/iio/light/apds9300.txt21
-rw-r--r--Documentation/devicetree/bindings/iio/light/apds9960.txt21
-rw-r--r--Documentation/devicetree/bindings/iio/light/bh1750.yaml45
-rw-r--r--Documentation/devicetree/bindings/iio/light/cm3605.txt41
-rw-r--r--Documentation/devicetree/bindings/iio/light/cm36651.txt26
-rw-r--r--Documentation/devicetree/bindings/iio/light/dynaimage,al3010.yaml45
-rw-r--r--Documentation/devicetree/bindings/iio/light/dynaimage,al3320a.yaml45
-rw-r--r--Documentation/devicetree/bindings/iio/light/gp2ap020a00f.txt21
-rw-r--r--Documentation/devicetree/bindings/iio/light/isl29018.yaml58
-rw-r--r--Documentation/devicetree/bindings/iio/light/max44009.txt24
-rw-r--r--Documentation/devicetree/bindings/iio/light/noa1305.yaml46
-rw-r--r--Documentation/devicetree/bindings/iio/light/opt3001.txt25
-rw-r--r--Documentation/devicetree/bindings/iio/light/renesas,isl29501.txt13
-rw-r--r--Documentation/devicetree/bindings/iio/light/sharp,gp2ap002.yaml87
-rw-r--r--Documentation/devicetree/bindings/iio/light/stk33xx.yaml51
-rw-r--r--Documentation/devicetree/bindings/iio/light/tsl2583.yaml48
-rw-r--r--Documentation/devicetree/bindings/iio/light/tsl2772.yaml84
-rw-r--r--Documentation/devicetree/bindings/iio/light/us5182d.txt45
-rw-r--r--Documentation/devicetree/bindings/iio/light/uvis25.txt22
-rw-r--r--Documentation/devicetree/bindings/iio/light/vcnl4035.txt18
-rw-r--r--Documentation/devicetree/bindings/iio/light/veml6030.yaml64
-rw-r--r--Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml54
-rw-r--r--Documentation/devicetree/bindings/iio/light/vl6180.txt15
-rw-r--r--Documentation/devicetree/bindings/iio/magnetometer/ak8974.txt31
-rw-r--r--Documentation/devicetree/bindings/iio/magnetometer/asahi-kasei,ak8975.yaml85
-rw-r--r--Documentation/devicetree/bindings/iio/magnetometer/bmc150_magn.txt25
-rw-r--r--Documentation/devicetree/bindings/iio/magnetometer/hmc5843.txt21
-rw-r--r--Documentation/devicetree/bindings/iio/magnetometer/mag3110.txt27
-rw-r--r--Documentation/devicetree/bindings/iio/magnetometer/mmc35240.txt13
-rw-r--r--Documentation/devicetree/bindings/iio/magnetometer/pni,rm3100.txt20
-rw-r--r--Documentation/devicetree/bindings/iio/mount-matrix.txt203
-rw-r--r--Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.txt39
-rw-r--r--Documentation/devicetree/bindings/iio/potentiometer/ad5272.txt27
-rw-r--r--Documentation/devicetree/bindings/iio/potentiometer/ds1803.txt21
-rw-r--r--Documentation/devicetree/bindings/iio/potentiometer/max5432.yaml44
-rw-r--r--Documentation/devicetree/bindings/iio/potentiometer/max5481.txt23
-rw-r--r--Documentation/devicetree/bindings/iio/potentiometer/mcp41010.txt28
-rw-r--r--Documentation/devicetree/bindings/iio/potentiometer/mcp4131.txt84
-rw-r--r--Documentation/devicetree/bindings/iio/potentiostat/lmp91000.txt33
-rw-r--r--Documentation/devicetree/bindings/iio/pressure/asc,dlhl60d.yaml53
-rw-r--r--Documentation/devicetree/bindings/iio/pressure/bmp085.yaml73
-rw-r--r--Documentation/devicetree/bindings/iio/pressure/hp03.txt17
-rw-r--r--Documentation/devicetree/bindings/iio/pressure/ms5611.txt19
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-rw-r--r--Documentation/devicetree/bindings/iio/pressure/zpa2326.txt29
-rw-r--r--Documentation/devicetree/bindings/iio/proximity/as3935.txt34
-rw-r--r--Documentation/devicetree/bindings/iio/proximity/devantech-srf04.yaml86
-rw-r--r--Documentation/devicetree/bindings/iio/proximity/maxbotix,mb1232.yaml60
-rw-r--r--Documentation/devicetree/bindings/iio/proximity/parallax-ping.yaml53
-rw-r--r--Documentation/devicetree/bindings/iio/proximity/semtech,sx9310.yaml65
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-rw-r--r--Documentation/devicetree/bindings/iio/proximity/vl53l0x.txt18
-rw-r--r--Documentation/devicetree/bindings/iio/resolver/ad2s90.txt31
-rw-r--r--Documentation/devicetree/bindings/iio/sensorhub.txt24
-rw-r--r--Documentation/devicetree/bindings/iio/st-sensors.txt82
-rw-r--r--Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml466
-rw-r--r--Documentation/devicetree/bindings/iio/temperature/max31856.txt24
-rw-r--r--Documentation/devicetree/bindings/iio/temperature/maxim_thermocouple.txt24
-rw-r--r--Documentation/devicetree/bindings/iio/temperature/mlx90614.txt24
-rw-r--r--Documentation/devicetree/bindings/iio/temperature/mlx90632.txt28
-rw-r--r--Documentation/devicetree/bindings/iio/temperature/temperature-bindings.txt7
-rw-r--r--Documentation/devicetree/bindings/iio/temperature/tmp007.txt33
-rw-r--r--Documentation/devicetree/bindings/iio/temperature/tsys01.txt19
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diff --git a/Documentation/devicetree/bindings/iio/accel/adi,adis16240.yaml b/Documentation/devicetree/bindings/iio/accel/adi,adis16240.yaml
new file mode 100644
index 000000000..4fcbfd93e
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/accel/adi,adis16240.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/accel/adi,adis16240.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ADIS16240 Programmable Impact Sensor and Recorder driver
+
+maintainers:
+ - Alexandru Ardelean <alexandru.ardelean@analog.com>
+
+description: |
+ ADIS16240 Programmable Impact Sensor and Recorder driver that supports
+ SPI interface.
+ https://www.analog.com/en/products/adis16240.html
+
+properties:
+ compatible:
+ enum:
+ - adi,adis16240
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ spi-max-frequency: true
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ spi0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* Example for a SPI device node */
+ accelerometer@0 {
+ compatible = "adi,adis16240";
+ reg = <0>;
+ spi-max-frequency = <2500000>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/accel/adi,adxl345.yaml b/Documentation/devicetree/bindings/iio/accel/adi,adxl345.yaml
new file mode 100644
index 000000000..11d32a288
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/accel/adi,adxl345.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/accel/adi,adxl345.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices ADXL345/ADXL375 3-Axis Digital Accelerometers
+
+maintainers:
+ - Michael Hennerich <michael.hennerich@analog.com>
+
+description: |
+ Analog Devices ADXL345/ADXL375 3-Axis Digital Accelerometers that supports
+ both I2C & SPI interfaces.
+ https://www.analog.com/en/products/mems/accelerometers/adxl345.html
+ https://www.analog.com/en/products/sensors-mems/accelerometers/adxl375.html
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - const: adi,adxl346
+ - const: adi,adxl345
+ - enum:
+ - adi,adxl345
+ - adi,adxl375
+
+ reg:
+ maxItems: 1
+
+ spi-cpha: true
+
+ spi-cpol: true
+
+ spi-max-frequency: true
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* Example for a I2C device node */
+ accelerometer@2a {
+ compatible = "adi,adxl345";
+ reg = <0x53>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ spi0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* Example for a SPI device node */
+ accelerometer@0 {
+ compatible = "adi,adxl345";
+ reg = <0>;
+ spi-max-frequency = <5000000>;
+ spi-cpol;
+ spi-cpha;
+ interrupt-parent = <&gpio0>;
+ interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/accel/adi,adxl372.yaml b/Documentation/devicetree/bindings/iio/accel/adi,adxl372.yaml
new file mode 100644
index 000000000..38b59b645
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/accel/adi,adxl372.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/accel/adi,adxl372.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices ADXL372 3-Axis, +/-(200g) Digital Accelerometer
+
+maintainers:
+ - Stefan Popa <stefan.popa@analog.com>
+
+description: |
+ Analog Devices ADXL372 3-Axis, +/-(200g) Digital Accelerometer that supports
+ both I2C & SPI interfaces
+ https://www.analog.com/en/products/adxl372.html
+
+properties:
+ compatible:
+ enum:
+ - adi,adxl372
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ spi-max-frequency: true
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* Example for a I2C device node */
+ accelerometer@53 {
+ compatible = "adi,adxl372";
+ reg = <0x53>;
+ interrupt-parent = <&gpio>;
+ interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
+ };
+ };
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ spi0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ accelerometer@0 {
+ compatible = "adi,adxl372";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ interrupt-parent = <&gpio>;
+ interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/accel/bma180.txt b/Documentation/devicetree/bindings/iio/accel/bma180.txt
new file mode 100644
index 000000000..33da4a6fd
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/accel/bma180.txt
@@ -0,0 +1,35 @@
+* Bosch BMA023 / BMA150/ BMA180 / BMA25x / SMB380 triaxial acceleration sensor
+
+https://media.digikey.com/pdf/Data%20Sheets/Bosch/BMA150.pdf
+http://omapworld.com/BMA180_111_1002839.pdf
+http://ae-bst.resource.bosch.com/media/products/dokumente/bma250/bst-bma250-ds002-05.pdf
+
+Required properties:
+
+ - compatible : should be one of:
+ "bosch,bma023"
+ "bosch,bma150"
+ "bosch,bma180"
+ "bosch,bma250"
+ "bosch,bma254"
+ "bosch,smb380"
+ - reg : the I2C address of the sensor
+ - vdd-supply : regulator phandle connected to the VDD pin
+ - vddio-supply : regulator phandle connected to the VDDIO pin
+
+Optional properties:
+
+ - interrupts : interrupt mapping for GPIO IRQ, it should by configured with
+ flags IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_EDGE_RISING
+ For the bma250 the first interrupt listed must be the one
+ connected to the INT1 pin, the second (optional) interrupt
+ listed must be the one connected to the INT2 pin.
+
+Example:
+
+bma180@40 {
+ compatible = "bosch,bma180";
+ reg = <0x40>;
+ interrupt-parent = <&gpio6>;
+ interrupts = <18 (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_EDGE_RISING)>;
+};
diff --git a/Documentation/devicetree/bindings/iio/accel/bosch,bma400.yaml b/Documentation/devicetree/bindings/iio/accel/bosch,bma400.yaml
new file mode 100644
index 000000000..8723a3362
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/accel/bosch,bma400.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/accel/bosch,bma400.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Bosch BMA400 triaxial acceleration sensor
+
+maintainers:
+ - Dan Robertson <dan@dlrobertson.com>
+
+description: |
+ Acceleration and temperature iio sensors with an i2c interface
+
+ Specifications about the sensor can be found at:
+ https://ae-bst.resource.bosch.com/media/_tech/media/datasheets/BST-BMA400-DS000.pdf
+
+properties:
+ compatible:
+ enum:
+ - bosch,bma400
+
+ reg:
+ maxItems: 1
+
+ vdd-supply:
+ description: phandle to the regulator that provides power to the accelerometer
+
+ vddio-supply:
+ description: phandle to the regulator that provides power to the sensor's IO
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ accelerometer@14 {
+ compatible = "bosch,bma400";
+ reg = <0x14>;
+ vdd-supply = <&vdd>;
+ vddio-supply = <&vddio>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/accel/dmard06.txt b/Documentation/devicetree/bindings/iio/accel/dmard06.txt
new file mode 100644
index 000000000..ce105a12c
--- /dev/null
+++ b/Documentation/devicetree/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/Documentation/devicetree/bindings/iio/accel/kionix,kxcjk1013.txt b/Documentation/devicetree/bindings/iio/accel/kionix,kxcjk1013.txt
new file mode 100644
index 000000000..ce950e162
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/accel/kionix,kxcjk1013.txt
@@ -0,0 +1,24 @@
+Kionix KXCJK-1013 Accelerometer device tree bindings
+
+Required properties:
+
+- compatible: Must be one of:
+ "kionix,kxcjk1013"
+ "kionix,kxcj91008"
+ "kionix,kxtj21009"
+ "kionix,kxtf9"
+ - reg: i2c slave address
+
+Optional properties:
+
+ - mount-matrix: an optional 3x3 mounting rotation matrix
+
+Example:
+
+kxtf9@f {
+ compatible = "kionix,kxtf9";
+ reg = <0x0F>;
+ mount-matrix = "0", "1", "0",
+ "1", "0", "0",
+ "0", "0", "1";
+};
diff --git a/Documentation/devicetree/bindings/iio/accel/kionix,kxsd9.yaml b/Documentation/devicetree/bindings/iio/accel/kionix,kxsd9.yaml
new file mode 100644
index 000000000..390b87242
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/accel/kionix,kxsd9.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/accel/kionix,kxsd9.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Kionix KXSD9 Accelerometer
+
+maintainers:
+ - Jonathan Cameron <jic23@kernel.org>
+
+description: |
+ 3 axis 12 bit accelerometer with +-8G range on all axes. Also has a
+ 12 bit auxiliary ADC channel. Interface is either SPI or I2C.
+
+properties:
+ compatible:
+ const: kionix,kxsd9
+
+ reg:
+ maxItems: 1
+
+ vdd-supply: true
+ iovdd-supply: true
+
+ interrupts:
+ maxItems: 1
+
+ mount-matrix:
+ description: an optional 3x3 mounting rotation matrix.
+
+ spi-max-frequency: true
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ # include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ accel@18 {
+ compatible = "kionix,kxsd9";
+ reg = <0x18>;
+ iovdd-supply = <&iovdd>;
+ vdd-supply = <&vdd>;
+ interrupts = <57 IRQ_TYPE_EDGE_FALLING>;
+ mount-matrix = "-0.984807753012208", "0", "-0.173648177666930",
+ "0", "-1", "0",
+ "-0.173648177666930", "0", "0.984807753012208";
+ };
+ };
+ - |
+ # include <dt-bindings/interrupt-controller/irq.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ accel@0 {
+ compatible = "kionix,kxsd9";
+ reg = <0>;
+ spi-max-frequency = <10000000>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/accel/lis302.txt b/Documentation/devicetree/bindings/iio/accel/lis302.txt
new file mode 100644
index 000000000..764e28ec1
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/accel/lis302.txt
@@ -0,0 +1,119 @@
+LIS302 accelerometer devicetree bindings
+
+This device is matched via its bus drivers, and has a number of properties
+that apply in on the generic device (independent from the bus).
+
+
+Required properties for the SPI bindings:
+ - compatible: should be set to "st,lis3lv02d-spi"
+ - reg: the chipselect index
+ - spi-max-frequency: maximal bus speed, should be set to 1000000 unless
+ constrained by external circuitry
+ - interrupts: the interrupt generated by the device
+
+Required properties for the I2C bindings:
+ - compatible: should be set to "st,lis3lv02d"
+ - reg: i2c slave address
+ - Vdd-supply: The input supply for Vdd
+ - Vdd_IO-supply: The input supply for Vdd_IO
+
+
+Optional properties for all bus drivers:
+
+ - st,click-single-{x,y,z}: if present, tells the device to issue an
+ interrupt on single click events on the
+ x/y/z axis.
+ - st,click-double-{x,y,z}: if present, tells the device to issue an
+ interrupt on double click events on the
+ x/y/z axis.
+ - st,click-thresh-{x,y,z}: set the x/y/z axis threshold
+ - st,click-click-time-limit: click time limit, from 0 to 127.5msec
+ with step of 0.5 msec
+ - st,click-latency: click latency, from 0 to 255 msec with
+ step of 1 msec.
+ - st,click-window: click window, from 0 to 255 msec with
+ step of 1 msec.
+ - st,irq{1,2}-disable: disable IRQ 1/2
+ - st,irq{1,2}-ff-wu-1: raise IRQ 1/2 on FF_WU_1 condition
+ - st,irq{1,2}-ff-wu-2: raise IRQ 1/2 on FF_WU_2 condition
+ - st,irq{1,2}-data-ready: raise IRQ 1/2 on data ready contition
+ - st,irq{1,2}-click: raise IRQ 1/2 on click condition
+ - st,irq-open-drain: consider IRQ lines open-drain
+ - st,irq-active-low: make IRQ lines active low
+ - st,wu-duration-1: duration register for Free-Fall/Wake-Up
+ interrupt 1
+ - st,wu-duration-2: duration register for Free-Fall/Wake-Up
+ interrupt 2
+ - st,wakeup-{x,y,z}-{lo,hi}: set wakeup condition on x/y/z axis for
+ upper/lower limit
+ - st,wakeup-threshold: set wakeup threshold
+ - st,wakeup2-{x,y,z}-{lo,hi}: set wakeup condition on x/y/z axis for
+ upper/lower limit for second wakeup
+ engine.
+ - st,wakeup2-threshold: set wakeup threshold for second wakeup
+ engine.
+ - st,highpass-cutoff-hz=: 1, 2, 4 or 8 for 1Hz, 2Hz, 4Hz or 8Hz of
+ highpass cut-off frequency
+ - st,hipass{1,2}-disable: disable highpass 1/2.
+ - st,default-rate=: set the default rate
+ - st,axis-{x,y,z}=: set the axis to map to the three coordinates.
+ Negative values can be used for inverted axis.
+ - st,{min,max}-limit-{x,y,z} set the min/max limits for x/y/z axis
+ (used by self-test)
+
+
+Example for a SPI device node:
+
+ accelerometer@0 {
+ compatible = "st,lis302dl-spi";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ interrupt-parent = <&gpio>;
+ interrupts = <104 0>;
+
+ st,click-single-x;
+ st,click-single-y;
+ st,click-single-z;
+ st,click-thresh-x = <10>;
+ st,click-thresh-y = <10>;
+ st,click-thresh-z = <10>;
+ st,irq1-click;
+ st,irq2-click;
+ st,wakeup-x-lo;
+ st,wakeup-x-hi;
+ st,wakeup-y-lo;
+ st,wakeup-y-hi;
+ st,wakeup-z-lo;
+ st,wakeup-z-hi;
+ };
+
+Example for a I2C device node:
+
+ lis331dlh: accelerometer@18 {
+ compatible = "st,lis331dlh", "st,lis3lv02d";
+ reg = <0x18>;
+ Vdd-supply = <&lis3_reg>;
+ Vdd_IO-supply = <&lis3_reg>;
+
+ st,click-single-x;
+ st,click-single-y;
+ st,click-single-z;
+ st,click-thresh-x = <10>;
+ st,click-thresh-y = <10>;
+ st,click-thresh-z = <10>;
+ st,irq1-click;
+ st,irq2-click;
+ st,wakeup-x-lo;
+ st,wakeup-x-hi;
+ st,wakeup-y-lo;
+ st,wakeup-y-hi;
+ st,wakeup-z-lo;
+ st,wakeup-z-hi;
+ st,min-limit-x = <120>;
+ st,min-limit-y = <120>;
+ st,min-limit-z = <140>;
+ st,max-limit-x = <550>;
+ st,max-limit-y = <550>;
+ st,max-limit-z = <750>;
+ };
+
diff --git a/Documentation/devicetree/bindings/iio/accel/mma8452.txt b/Documentation/devicetree/bindings/iio/accel/mma8452.txt
new file mode 100644
index 000000000..e13239437
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/accel/mma8452.txt
@@ -0,0 +1,35 @@
+Freescale MMA8451Q, MMA8452Q, MMA8453Q, MMA8652FC, MMA8653FC or FXLS8471Q
+triaxial accelerometer
+
+Required properties:
+
+ - compatible: should contain one of
+ * "fsl,mma8451"
+ * "fsl,mma8452"
+ * "fsl,mma8453"
+ * "fsl,mma8652"
+ * "fsl,mma8653"
+ * "fsl,fxls8471"
+
+ - reg: the I2C address of the chip
+
+Optional properties:
+
+ - interrupts: interrupt mapping for GPIO IRQ
+
+ - 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 {
+ compatible = "fsl,mma8453";
+ reg = <0x1d>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <5 0>;
+ interrupt-names = "INT2";
+ };
diff --git a/Documentation/devicetree/bindings/iio/adc/adc.txt b/Documentation/devicetree/bindings/iio/adc/adc.txt
new file mode 100644
index 000000000..5bbaa330a
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adc.txt
@@ -0,0 +1,23 @@
+Common ADCs properties
+
+Optional properties for child nodes:
+- bipolar : Boolean, if set the channel is used in bipolar mode.
+- diff-channels : Differential channels muxed for this ADC. The first value
+ specifies the positive input pin, the second value the negative
+ input pin.
+
+Example:
+ adc@0 {
+ compatible = "some,adc";
+ ...
+ channel@0 {
+ bipolar;
+ diff-channels = <0 1>;
+ ...
+ };
+
+ channel@1 {
+ diff-channels = <2 3>;
+ ...
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml
new file mode 100644
index 000000000..31ffa275f
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,ad7091r5.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD7091R5 4-Channel 12-Bit ADC
+
+maintainers:
+ - Beniamin Bia <beniamin.bia@analog.com>
+
+description: |
+ Analog Devices AD7091R5 4-Channel 12-Bit ADC
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ad7091r-5.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,ad7091r5
+
+ reg:
+ maxItems: 1
+
+ vref-supply:
+ description:
+ Phandle to the vref power supply
+
+ interrupts:
+ maxItems: 1
+
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@2f {
+ compatible = "adi,ad7091r5";
+ reg = <0x2f>;
+
+ interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
+ interrupt-parent = <&gpio>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7124.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7124.yaml
new file mode 100644
index 000000000..f1c574c89
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7124.yaml
@@ -0,0 +1,160 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2019 Analog Devices Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,ad7124.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD7124 ADC device driver
+
+maintainers:
+ - Stefan Popa <stefan.popa@analog.com>
+
+description: |
+ Bindings for the Analog Devices AD7124 ADC device. Datasheet can be
+ found here:
+ https://www.analog.com/media/en/technical-documentation/data-sheets/AD7124-8.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,ad7124-4
+ - adi,ad7124-8
+
+ reg:
+ description: SPI chip select number for the device
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+ description: phandle to the master clock (mclk)
+
+ clock-names:
+ items:
+ - const: mclk
+
+ interrupts:
+ description: IRQ line for the ADC
+ maxItems: 1
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ refin1-supply:
+ description: refin1 supply can be used as reference for conversion.
+
+ refin2-supply:
+ description: refin2 supply can be used as reference for conversion.
+
+ avdd-supply:
+ description: avdd supply can be used as reference for conversion.
+
+ spi-max-frequency: true
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - interrupts
+
+patternProperties:
+ "^channel@([0-9]|1[0-5])$":
+ type: object
+ description: |
+ Represents the external channels which are connected to the ADC.
+ See Documentation/devicetree/bindings/iio/adc/adc.txt.
+
+ properties:
+ reg:
+ description: |
+ The channel number. It can have up to 8 channels on ad7124-4
+ and 16 channels on ad7124-8, numbered from 0 to 15.
+ items:
+ minimum: 0
+ maximum: 15
+
+ adi,reference-select:
+ description: |
+ Select the reference source to use when converting on
+ the specific channel. Valid values are:
+ 0: REFIN1(+)/REFIN1(−).
+ 1: REFIN2(+)/REFIN2(−).
+ 3: AVDD
+ If this field is left empty, internal reference is selected.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1, 3]
+
+ diff-channels:
+ description: see Documentation/devicetree/bindings/iio/adc/adc.txt
+ items:
+ minimum: 0
+ maximum: 15
+
+ bipolar:
+ description: see Documentation/devicetree/bindings/iio/adc/adc.txt
+ type: boolean
+
+ adi,buffered-positive:
+ description: Enable buffered mode for positive input.
+ type: boolean
+
+ adi,buffered-negative:
+ description: Enable buffered mode for negative input.
+ type: boolean
+
+ required:
+ - reg
+ - diff-channels
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "adi,ad7124-4";
+ reg = <0>;
+ spi-max-frequency = <5000000>;
+ interrupts = <25 2>;
+ interrupt-parent = <&gpio>;
+ refin1-supply = <&adc_vref>;
+ clocks = <&ad7124_mclk>;
+ clock-names = "mclk";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ channel@0 {
+ reg = <0>;
+ diff-channels = <0 1>;
+ adi,reference-select = <0>;
+ adi,buffered-positive;
+ };
+
+ channel@1 {
+ reg = <1>;
+ bipolar;
+ diff-channels = <2 3>;
+ adi,reference-select = <0>;
+ adi,buffered-positive;
+ adi,buffered-negative;
+ };
+
+ channel@2 {
+ reg = <2>;
+ diff-channels = <4 5>;
+ };
+
+ channel@3 {
+ reg = <3>;
+ diff-channels = <6 7>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml
new file mode 100644
index 000000000..e0cc3b2e8
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml
@@ -0,0 +1,123 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2019 Analog Devices Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,ad7192.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD7192 ADC device driver
+
+maintainers:
+ - Michael Hennerich <michael.hennerich@analog.com>
+
+description: |
+ Bindings for the Analog Devices AD7192 ADC device. Datasheet can be
+ found here:
+ https://www.analog.com/media/en/technical-documentation/data-sheets/AD7192.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,ad7190
+ - adi,ad7192
+ - adi,ad7193
+ - adi,ad7195
+
+ reg:
+ maxItems: 1
+
+ spi-cpol: true
+
+ spi-cpha: true
+
+ spi-max-frequency: true
+
+ clocks:
+ maxItems: 1
+ description: phandle to the master clock (mclk)
+
+ clock-names:
+ items:
+ - const: mclk
+
+ interrupts:
+ maxItems: 1
+
+ dvdd-supply:
+ description: DVdd voltage supply
+
+ avdd-supply:
+ description: AVdd voltage supply
+
+ adi,rejection-60-Hz-enable:
+ description: |
+ This bit enables a notch at 60 Hz when the first notch of the sinc
+ filter is at 50 Hz. When REJ60 is set, a filter notch is placed at
+ 60 Hz when the sinc filter first notch is at 50 Hz. This allows
+ simultaneous 50 Hz/ 60 Hz rejection.
+ type: boolean
+
+ adi,refin2-pins-enable:
+ description: |
+ External reference applied between the P1/REFIN2(+) and P0/REFIN2(−) pins.
+ type: boolean
+
+ adi,buffer-enable:
+ description: |
+ Enables the buffer on the analog inputs. If cleared, the analog inputs
+ are unbuffered, lowering the power consumption of the device. If this
+ bit is set, the analog inputs are buffered, allowing the user to place
+ source impedances on the front end without contributing gain errors to
+ the system.
+ type: boolean
+
+ adi,burnout-currents-enable:
+ description: |
+ When this bit is set to 1, the 500 nA current sources in the signal
+ path are enabled. When BURN = 0, the burnout currents are disabled.
+ The burnout currents can be enabled only when the buffer is active
+ and when chop is disabled.
+ type: boolean
+
+ bipolar:
+ description: see Documentation/devicetree/bindings/iio/adc/adc.txt
+ type: boolean
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - interrupts
+ - dvdd-supply
+ - avdd-supply
+ - spi-cpol
+ - spi-cpha
+
+additionalProperties: false
+
+examples:
+ - |
+ spi0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "adi,ad7192";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ spi-cpol;
+ spi-cpha;
+ clocks = <&ad7192_mclk>;
+ clock-names = "mclk";
+ interrupts = <25 0x2>;
+ interrupt-parent = <&gpio>;
+ dvdd-supply = <&dvdd>;
+ avdd-supply = <&avdd>;
+
+ adi,refin2-pins-enable;
+ adi,rejection-60-Hz-enable;
+ adi,buffer-enable;
+ adi,burnout-currents-enable;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7291.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7291.yaml
new file mode 100644
index 000000000..930f9e390
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7291.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,ad7291.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AD7291 8-Channel, I2C, 12-Bit SAR ADC with Temperature Sensor
+
+maintainers:
+ - Michael Auchter <michael.auchter@ni.com>
+
+description: |
+ Analog Devices AD7291 8-Channel I2C 12-Bit SAR ADC with Temperature Sensor
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ad7291.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,ad7291
+
+ reg:
+ maxItems: 1
+
+ vref-supply:
+ description: |
+ The regulator supply for ADC reference voltage.
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ad7291: adc@0 {
+ compatible = "adi,ad7291";
+ reg = <0>;
+ vref-supply = <&adc_vref>;
+ };
+ };
+...
+
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml
new file mode 100644
index 000000000..108d202b2
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml
@@ -0,0 +1,109 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,ad7292.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD7292 10-Bit Monitor and Control System
+
+maintainers:
+ - Marcelo Schmitt <marcelo.schmitt1@gmail.com>
+
+description: |
+ Analog Devices AD7292 10-Bit Monitor and Control System with ADC, DACs,
+ Temperature Sensor, and GPIOs
+
+ Specifications about the part can be found at:
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ad7292.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,ad7292
+
+ reg:
+ maxItems: 1
+
+ vref-supply:
+ description: |
+ The regulator supply for ADC and DAC reference voltage.
+
+ spi-cpha: true
+
+ spi-max-frequency: true
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+required:
+ - compatible
+ - reg
+ - spi-cpha
+
+patternProperties:
+ "^channel@[0-7]$":
+ type: object
+ description: |
+ Represents the external channels which are connected to the ADC.
+ See Documentation/devicetree/bindings/iio/adc/adc.txt.
+
+ properties:
+ reg:
+ description: |
+ The channel number. It can have up to 8 channels numbered from 0 to 7.
+ items:
+ - minimum: 0
+ maximum: 7
+
+ diff-channels:
+ description: see Documentation/devicetree/bindings/iio/adc/adc.txt
+ maxItems: 1
+
+ required:
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ad7292: adc@0 {
+ compatible = "adi,ad7292";
+ reg = <0>;
+ spi-max-frequency = <25000000>;
+ vref-supply = <&adc_vref>;
+ spi-cpha;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ channel@0 {
+ reg = <0>;
+ diff-channels = <0 1>;
+ };
+ channel@2 {
+ reg = <2>;
+ };
+ channel@3 {
+ reg = <3>;
+ };
+ channel@4 {
+ reg = <4>;
+ };
+ channel@5 {
+ reg = <5>;
+ };
+ channel@6 {
+ reg = <6>;
+ };
+ channel@7 {
+ reg = <7>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
new file mode 100644
index 000000000..73775174c
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
@@ -0,0 +1,141 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,ad7606.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD7606 Simultaneous Sampling ADC
+
+maintainers:
+ - Beniamin Bia <beniamin.bia@analog.com>
+ - Stefan Popa <stefan.popa@analog.com>
+
+description: |
+ Analog Devices AD7606 Simultaneous Sampling ADC
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ad7606_7606-6_7606-4.pdf
+ https://www.analog.com/media/en/technical-documentation/data-sheets/AD7606B.pdf
+ https://www.analog.com/media/en/technical-documentation/data-sheets/AD7616.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,ad7605-4
+ - adi,ad7606-8
+ - adi,ad7606-6
+ - adi,ad7606-4
+ - adi,ad7606b
+ - adi,ad7616
+
+ reg:
+ maxItems: 1
+
+ spi-cpha: true
+
+ spi-cpol: true
+
+ spi-max-frequency: true
+
+ avcc-supply: true
+
+ interrupts:
+ maxItems: 1
+
+ adi,conversion-start-gpios:
+ description:
+ 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.
+ maxItems: 1
+
+ reset-gpios:
+ description:
+ 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.
+ maxItems: 1
+
+ standby-gpios:
+ description:
+ 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.
+ maxItems: 1
+
+ adi,first-data-gpios:
+ description:
+ 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.
+ maxItems: 1
+
+ adi,range-gpios:
+ description:
+ 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.
+ maxItems: 1
+
+ adi,oversampling-ratio-gpios:
+ description:
+ 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.
+ maxItems: 3
+
+ adi,sw-mode:
+ description:
+ Software mode of operation, so far available only for ad7616 and ad7606b.
+ It is enabled when all three oversampling mode pins are connected to
+ high level. The device is configured by the corresponding registers. If the
+ adi,oversampling-ratio-gpios property is defined, then the driver will set the
+ oversampling gpios to high. Otherwise, it is assumed that the pins are hardwired
+ to VDD.
+ type: boolean
+
+required:
+ - compatible
+ - reg
+ - spi-cpha
+ - avcc-supply
+ - interrupts
+ - adi,conversion-start-gpios
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ spi0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "adi,ad7606-8";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ spi-cpol;
+ spi-cpha;
+
+ 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>;
+ adi,sw-mode;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml
new file mode 100644
index 000000000..8f32800fe
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml
@@ -0,0 +1,90 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,ad7768-1.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD7768-1 ADC device driver
+
+maintainers:
+ - Michael Hennerich <michael.hennerich@analog.com>
+
+description: |
+ Datasheet at:
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ad7768-1.pdf
+
+properties:
+ compatible:
+ const: adi,ad7768-1
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: mclk
+
+ interrupts:
+ maxItems: 1
+
+ vref-supply:
+ description:
+ ADC reference voltage supply
+
+ adi,sync-in-gpios:
+ description:
+ 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.
+
+ reset-gpios:
+ maxItems: 1
+
+ spi-max-frequency: true
+
+ spi-cpol: true
+
+ spi-cpha: true
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - vref-supply
+ - spi-cpol
+ - spi-cpha
+ - adi,sync-in-gpios
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/gpio/gpio.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ 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";
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml
new file mode 100644
index 000000000..a67ba67da
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml
@@ -0,0 +1,88 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,ad7780.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD7170/AD7171/AD7780/AD7781 analog to digital converters
+
+maintainers:
+ - Michael Hennerich <michael.hennerich@analog.com>
+
+description: |
+ The ad7780 is a sigma-delta analog to digital converter. This driver provides
+ reading voltage values and status bits from both the ad778x and ad717x series.
+ Its interface also allows writing on the FILTER and GAIN GPIO pins on the
+ ad778x.
+
+ Specifications on the converters can be found at:
+ AD7170:
+ https://www.analog.com/media/en/technical-documentation/data-sheets/AD7170.pdf
+ AD7171:
+ https://www.analog.com/media/en/technical-documentation/data-sheets/AD7171.pdf
+ AD7780:
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ad7780.pdf
+ AD7781:
+ https://www.analog.com/media/en/technical-documentation/data-sheets/AD7781.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,ad7170
+ - adi,ad7171
+ - adi,ad7780
+ - adi,ad7781
+
+ reg:
+ maxItems: 1
+
+ avdd-supply:
+ description:
+ The regulator supply for the ADC reference voltage.
+
+ powerdown-gpios:
+ description:
+ Must be the device tree identifier of the PDRST pin. If
+ specified, it will be asserted during driver probe. As the
+ line is active high, it should be marked GPIO_ACTIVE_HIGH.
+ maxItems: 1
+
+ adi,gain-gpios:
+ description:
+ Must be the device tree identifier of the GAIN pin. Only for
+ the ad778x chips. If specified, it will be asserted during
+ driver probe. As the line is active low, it should be marked
+ GPIO_ACTIVE_LOW.
+ maxItems: 1
+
+ adi,filter-gpios:
+ description:
+ Must be the device tree identifier of the FILTER pin. Only
+ for the ad778x chips. If specified, it will be asserted
+ during driver probe. As the line is active low, it should be
+ marked GPIO_ACTIVE_LOW.
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ spi0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "adi,ad7780";
+ reg = <0>;
+
+ avdd-supply = <&vdd_supply>;
+ powerdown-gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>;
+ adi,gain-gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
+ adi,filter-gpios = <&gpio2 15 GPIO_ACTIVE_LOW>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7923.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7923.yaml
new file mode 100644
index 000000000..e82194974
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7923.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,ad7923.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD7923 and similars with 4 and 8 Channel ADCs.
+
+maintainers:
+ - Michael Hennerich <michael.hennerich@analog.com>
+ - Patrick Vasseur <patrick.vasseur@c-s.fr>
+
+description: |
+ Analog Devices AD7904, AD7914, AD7923, AD7924 4 Channel ADCs, and AD7908,
+ AD7918, AD7928 8 Channels ADCs.
+
+ Specifications about the part can be found at:
+ https://www.analog.com/media/en/technical-documentation/data-sheets/AD7923.pdf
+ https://www.analog.com/media/en/technical-documentation/data-sheets/AD7904_7914_7924.pdf
+ https://www.analog.com/media/en/technical-documentation/data-sheets/AD7908_7918_7928.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,ad7904
+ - adi,ad7914
+ - adi,ad7923
+ - adi,ad7924
+ - adi,ad7908
+ - adi,ad7918
+ - adi,ad7928
+
+ reg:
+ maxItems: 1
+
+ refin-supply:
+ description: |
+ The regulator supply for ADC reference voltage.
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ spi-max-frequency: true
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ad7928: adc@0 {
+ compatible = "adi,ad7928";
+ reg = <0>;
+ spi-max-frequency = <25000000>;
+ refin-supply = <&adc_vref>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7949.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7949.yaml
new file mode 100644
index 000000000..9b56bd4d5
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7949.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,ad7949.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD7949/AD7682/AD7689 analog to digital converters
+
+maintainers:
+ - Charles-Antoine Couret <charles-antoine.couret@essensium.com>
+
+description: |
+ Specifications on the converters can be found at:
+ AD7949:
+ https://www.analog.com/media/en/technical-documentation/data-sheets/AD7949.pdf
+ AD7682/AD7698:
+ https://www.analog.com/media/en/technical-documentation/data-sheets/AD7682_7689.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,ad7682
+ - adi,ad7689
+ - adi,ad7949
+
+ reg:
+ maxItems: 1
+
+ vref-supply:
+ description:
+ ADC reference voltage supply
+
+ spi-max-frequency: true
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - vref-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "adi,ad7949";
+ reg = <0>;
+ vref-supply = <&vdd_supply>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad9467.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad9467.yaml
new file mode 100644
index 000000000..b5aed40d8
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad9467.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,ad9467.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD9467 and similar High-Speed ADCs
+
+maintainers:
+ - Michael Hennerich <michael.hennerich@analog.com>
+ - Alexandru Ardelean <alexandru.ardelean@analog.com>
+
+description: |
+ The AD9467 and the parts similar with it, are high-speed analog-to-digital
+ converters (ADCs), operating in the range of 100 to 500 mega samples
+ per second (MSPS). Some parts support higher MSPS and some
+ lower MSPS, suitable for the intended application of each part.
+
+ All the parts support the register map described by Application Note AN-877
+ https://www.analog.com/media/en/technical-documentation/application-notes/AN-877.pdf
+
+ https://www.analog.com/media/en/technical-documentation/data-sheets/AD9265.pdf
+ https://www.analog.com/media/en/technical-documentation/data-sheets/AD9434.pdf
+ https://www.analog.com/media/en/technical-documentation/data-sheets/AD9467.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,ad9265
+ - adi,ad9434
+ - adi,ad9467
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: adc-clk
+
+ powerdown-gpios:
+ description:
+ Pin that controls the powerdown mode of the device.
+ maxItems: 1
+
+ reset-gpios:
+ description:
+ Reset pin for the device.
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "adi,ad9467";
+ reg = <0>;
+ clocks = <&adc_clk>;
+ clock-names = "adc-clk";
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,axi-adc.yaml b/Documentation/devicetree/bindings/iio/adc/adi,axi-adc.yaml
new file mode 100644
index 000000000..0924b2b49
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adi,axi-adc.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,axi-adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AXI ADC IP core
+
+maintainers:
+ - Michael Hennerich <michael.hennerich@analog.com>
+ - Alexandru Ardelean <alexandru.ardelean@analog.com>
+
+description: |
+ Analog Devices Generic AXI ADC IP core for interfacing an ADC device
+ with a high speed serial (JESD204B/C) or source synchronous parallel
+ interface (LVDS/CMOS).
+ Usually, some other interface type (i.e SPI) is used as a control
+ interface for the actual ADC, while this IP core will interface
+ to the data-lines of the ADC and handle the streaming of data into
+ memory via DMA.
+
+ https://wiki.analog.com/resources/fpga/docs/axi_adc_ip
+
+properties:
+ compatible:
+ enum:
+ - adi,axi-adc-10.0.a
+
+ reg:
+ maxItems: 1
+
+ dmas:
+ maxItems: 1
+
+ dma-names:
+ items:
+ - const: rx
+
+ adi,adc-dev:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ A reference to a the actual ADC to which this FPGA ADC interfaces to.
+
+required:
+ - compatible
+ - dmas
+ - reg
+ - adi,adc-dev
+
+additionalProperties: false
+
+examples:
+ - |
+ axi-adc@44a00000 {
+ compatible = "adi,axi-adc-10.0.a";
+ reg = <0x44a00000 0x10000>;
+ dmas = <&rx_dma 0>;
+ dma-names = "rx";
+
+ adi,adc-dev = <&spi_adc>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/allwinner,sun8i-a33-ths.yaml b/Documentation/devicetree/bindings/iio/adc/allwinner,sun8i-a33-ths.yaml
new file mode 100644
index 000000000..15c514b83
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/allwinner,sun8i-a33-ths.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/allwinner,sun8i-a33-ths.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A33 Thermal Sensor Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ "#io-channel-cells":
+ const: 0
+
+ "#thermal-sensor-cells":
+ const: 0
+
+ compatible:
+ const: allwinner,sun8i-a33-ths
+
+ reg:
+ maxItems: 1
+
+required:
+ - "#io-channel-cells"
+ - "#thermal-sensor-cells"
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ ths: ths@1c25000 {
+ compatible = "allwinner,sun8i-a33-ths";
+ reg = <0x01c25000 0x100>;
+ #thermal-sensor-cells = <0>;
+ #io-channel-cells = <0>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/amlogic,meson-saradc.yaml b/Documentation/devicetree/bindings/iio/adc/amlogic,meson-saradc.yaml
new file mode 100644
index 000000000..3be895558
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/amlogic,meson-saradc.yaml
@@ -0,0 +1,149 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/amlogic,meson-saradc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic Meson SAR (Successive Approximation Register) A/D converter
+
+maintainers:
+ - Martin Blumenstingl <martin.blumenstingl@googlemail.com>
+
+description:
+ Binding covers a range of ADCs found on Amlogic Meson SoCs.
+
+properties:
+ compatible:
+ oneOf:
+ - const: amlogic,meson-saradc
+ - items:
+ - enum:
+ - amlogic,meson8-saradc
+ - amlogic,meson8b-saradc
+ - amlogic,meson8m2-saradc
+ - amlogic,meson-gxbb-saradc
+ - amlogic,meson-gxl-saradc
+ - amlogic,meson-gxm-saradc
+ - amlogic,meson-axg-saradc
+ - amlogic,meson-g12a-saradc
+ - const: amlogic,meson-saradc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ description: Interrupt indicates end of sampling.
+ maxItems: 1
+
+ clocks:
+ minItems: 2
+ maxItems: 4
+
+ clock-names:
+ minItems: 2
+ maxItems: 4
+ items:
+ - const: clkin
+ - const: core
+ - const: adc_clk
+ - const: adc_sel
+
+ vref-supply: true
+
+ "#io-channel-cells":
+ const: 1
+
+ amlogic,hhi-sysctrl:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ 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:
+ description: phandle to the temperature_calib eFuse cells
+ maxItems: 1
+
+ nvmem-cell-names:
+ const: temperature_calib
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - amlogic,meson8-saradc
+ - amlogic,meson8b-saradc
+ - amlogic,meson8m2-saradc
+ then:
+ properties:
+ clocks:
+ maxItems: 2
+ clock-names:
+ maxItems: 2
+ else:
+ properties:
+ nvmem-cells: false
+ mvmem-cel-names: false
+ clocks:
+ minItems: 4
+ clock-names:
+ minItems: 4
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - amlogic,meson8b-saradc
+ - amlogic,meson8m2-saradc
+ then:
+ properties:
+ amlogic,hhi-sysctrl: true
+ else:
+ properties:
+ amlogic,hhi-sysctrl: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - "#io-channel-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/clock/gxbb-clkc.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ adc@8680 {
+ compatible = "amlogic,meson-gxl-saradc", "amlogic,meson-saradc";
+ #io-channel-cells = <1>;
+ reg = <0x0 0x8680 0x0 0x34>;
+ interrupts = <GIC_SPI 73 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&xtal>,
+ <&clkc CLKID_SAR_ADC>,
+ <&clkc CLKID_SAR_ADC_CLK>,
+ <&clkc CLKID_SAR_ADC_SEL>;
+ clock-names = "clkin", "core", "adc_clk", "adc_sel";
+ };
+ adc@9680 {
+ compatible = "amlogic,meson8b-saradc", "amlogic,meson-saradc";
+ #io-channel-cells = <1>;
+ reg = <0x0 0x9680 0x0 0x34>;
+ interrupts = <GIC_SPI 73 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&xtal>, <&clkc CLKID_SAR_ADC>;
+ clock-names = "clkin", "core";
+ nvmem-cells = <&tsens_caldata>;
+ nvmem-cell-names = "temperature_calib";
+ amlogic,hhi-sysctrl = <&hhi>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/aspeed,ast2400-adc.yaml b/Documentation/devicetree/bindings/iio/adc/aspeed,ast2400-adc.yaml
new file mode 100644
index 000000000..7f534a933
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/aspeed,ast2400-adc.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/aspeed,ast2400-adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ADC that forms part of an ASPEED server management processor.
+
+maintainers:
+ - Joel Stanley <joel@jms.id.au>
+
+description:
+ This device is a 10-bit converter for 16 voltage channels. All inputs are
+ single ended.
+
+properties:
+ compatible:
+ enum:
+ - aspeed,ast2400-adc
+ - aspeed,ast2500-adc
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ description:
+ Input clock used to derive the sample clock. Expected to be the
+ SoC's APB clock.
+
+ resets:
+ maxItems: 1
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - resets
+ - "#io-channel-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/aspeed-clock.h>
+ adc@1e6e9000 {
+ compatible = "aspeed,ast2400-adc";
+ reg = <0x1e6e9000 0xb0>;
+ clocks = <&syscon ASPEED_CLK_APB>;
+ resets = <&syscon ASPEED_RESET_ADC>;
+ #io-channel-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt b/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
new file mode 100644
index 000000000..07c59f301
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
@@ -0,0 +1,50 @@
+* AT91 SAMA5D2 Analog to Digital Converter (ADC)
+
+Required properties:
+ - compatible: Should be "atmel,sama5d2-adc" or "microchip,sam9x60-adc".
+ - reg: Should contain ADC registers location and length.
+ - interrupts: Should contain the IRQ line for the ADC.
+ - clocks: phandle to device clock.
+ - clock-names: Must be "adc_clk".
+ - vref-supply: Supply used as reference for conversions.
+ - vddana-supply: Supply for the adc device.
+ - atmel,min-sample-rate-hz: Minimum sampling rate, it depends on SoC.
+ - atmel,max-sample-rate-hz: Maximum sampling rate, it depends on SoC.
+ - atmel,startup-time-ms: Startup time expressed in ms, it depends on SoC.
+ - atmel,trigger-edge-type: One of possible edge types for the ADTRG hardware
+ trigger pin. When the specific edge type is detected, the conversion will
+ start. Possible values are rising, falling, or both.
+ This property uses the IRQ edge types values: IRQ_TYPE_EDGE_RISING ,
+ IRQ_TYPE_EDGE_FALLING or IRQ_TYPE_EDGE_BOTH
+
+Optional properties:
+ - dmas: Phandle to dma channel for the ADC.
+ - dma-names: Must be "rx" when dmas property is being used.
+ See ../../dma/dma.txt for details.
+ - #io-channel-cells: in case consumer drivers are attached, this must be 1.
+ See <Documentation/devicetree/bindings/iio/iio-bindings.txt> for details.
+
+Properties for consumer drivers:
+ - Consumer drivers can be connected to this producer device, as specified
+ in <Documentation/devicetree/bindings/iio/iio-bindings.txt>
+ - Channels exposed are specified in:
+ <dt-bindings/iio/adc/at91-sama5d2_adc.txt>
+
+Example:
+
+adc: adc@fc030000 {
+ compatible = "atmel,sama5d2-adc";
+ reg = <0xfc030000 0x100>;
+ interrupts = <40 IRQ_TYPE_LEVEL_HIGH 7>;
+ clocks = <&adc_clk>;
+ clock-names = "adc_clk";
+ atmel,min-sample-rate-hz = <200000>;
+ atmel,max-sample-rate-hz = <20000000>;
+ atmel,startup-time-ms = <4>;
+ vddana-supply = <&vdd_3v3_lp_reg>;
+ vref-supply = <&vdd_3v3_lp_reg>;
+ atmel,trigger-edge-type = <IRQ_TYPE_EDGE_BOTH>;
+ dmas = <&dma0 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) | AT91_XDMAC_DT_PERID(25))>;
+ dma-names = "rx";
+ #io-channel-cells = <1>;
+}
diff --git a/Documentation/devicetree/bindings/iio/adc/at91_adc.txt b/Documentation/devicetree/bindings/iio/adc/at91_adc.txt
new file mode 100644
index 000000000..f65b04fb7
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/at91_adc.txt
@@ -0,0 +1,83 @@
+* AT91's Analog to Digital Converter (ADC)
+
+Required properties:
+ - compatible: Should be "atmel,<chip>-adc"
+ <chip> can be "at91sam9260", "at91sam9g45" or "at91sam9x5"
+ - reg: Should contain ADC registers location and length
+ - interrupts: Should contain the IRQ line for the ADC
+ - clock-names: tuple listing input clock names.
+ Required elements: "adc_clk", "adc_op_clk".
+ - clocks: phandles to input clocks.
+ - atmel,adc-channels-used: Bitmask of the channels muxed and enabled for this
+ device
+ - atmel,adc-startup-time: Startup Time of the ADC in microseconds as
+ defined in the datasheet
+ - atmel,adc-vref: Reference voltage in millivolts for the conversions
+ - atmel,adc-res: List of resolutions in bits supported by the ADC. List size
+ must be two at least.
+ - atmel,adc-res-names: Contains one identifier string for each resolution
+ in atmel,adc-res property. "lowres" and "highres"
+ identifiers are required.
+
+Optional properties:
+ - atmel,adc-use-external-triggers: Boolean to enable the external triggers
+ - atmel,adc-use-res: String corresponding to an identifier from
+ atmel,adc-res-names property. If not specified, the highest
+ resolution will be used.
+ - atmel,adc-sleep-mode: Boolean to enable sleep mode when no conversion
+ - atmel,adc-sample-hold-time: Sample and Hold Time in microseconds
+ - atmel,adc-ts-wires: Number of touchscreen wires. Should be 4 or 5. If this
+ value is set, then the adc driver will enable touchscreen
+ support.
+ NOTE: when adc touchscreen is enabled, the adc hardware trigger will be
+ disabled. Since touchscreen will occupy the trigger register.
+ - atmel,adc-ts-pressure-threshold: a pressure threshold for touchscreen. It
+ makes touch detection more precise.
+
+Optional trigger Nodes:
+ - Required properties:
+ * trigger-name: Name of the trigger exposed to the user
+ * trigger-value: Value to put in the Trigger register
+ to activate this trigger
+ - Optional properties:
+ * trigger-external: Is the trigger an external trigger?
+
+Examples:
+adc0: adc@fffb0000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "atmel,at91sam9260-adc";
+ reg = <0xfffb0000 0x100>;
+ interrupts = <20 IRQ_TYPE_LEVEL_HIGH 0>;
+ clocks = <&adc_clk>, <&adc_op_clk>;
+ clock-names = "adc_clk", "adc_op_clk";
+ atmel,adc-channels-used = <0xff>;
+ atmel,adc-startup-time = <40>;
+ atmel,adc-use-external-triggers;
+ atmel,adc-vref = <3300>;
+ atmel,adc-res = <8 10>;
+ atmel,adc-res-names = "lowres", "highres";
+ atmel,adc-use-res = "lowres";
+
+ trigger0 {
+ trigger-name = "external-rising";
+ trigger-value = <0x1>;
+ trigger-external;
+ };
+ trigger1 {
+ trigger-name = "external-falling";
+ trigger-value = <0x2>;
+ trigger-external;
+ };
+
+ trigger2 {
+ trigger-name = "external-any";
+ trigger-value = <0x3>;
+ trigger-external;
+ };
+
+ trigger3 {
+ trigger-name = "continuous";
+ trigger-value = <0x6>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml b/Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml
new file mode 100644
index 000000000..77605f179
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/iio/adc/avia-hx711.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: AVIA HX711 ADC chip for weight cells
+
+maintainers:
+ - Andreas Klinger <ak@it-klinger.de>
+
+description: |
+ Bit-banging driver using two GPIOs:
+ - sck-gpio gives a clock to the sensor with 24 cycles for data retrieval
+ and up to 3 cycles for selection of the input channel and gain for the
+ next measurement
+ - dout-gpio is the sensor data the sensor responds to the clock
+
+ Specifications about the driver can be found at:
+ http://www.aviaic.com/ENProducts.aspx
+
+properties:
+ compatible:
+ enum:
+ - avia,hx711
+
+ sck-gpios:
+ description:
+ Definition of the GPIO for the clock (output). In the datasheet it is
+ named PD_SCK
+ maxItems: 1
+
+ dout-gpios:
+ description:
+ Definition of the GPIO for the data-out sent by the sensor in
+ response to the clock (input).
+ See Documentation/devicetree/bindings/gpio/gpio.txt for information
+ on how to specify a consumer gpio.
+ maxItems: 1
+
+ avdd-supply:
+ description:
+ Definition of the regulator used as analog supply
+
+ clock-frequency:
+ minimum: 20000
+ maximum: 2500000
+ default: 400000
+
+required:
+ - compatible
+ - sck-gpios
+ - dout-gpios
+ - avdd-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ weight {
+ compatible = "avia,hx711";
+ sck-gpios = <&gpio3 10 GPIO_ACTIVE_HIGH>;
+ dout-gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
+ avdd-supply = <&avdd>;
+ clock-frequency = <100000>;
+ };
diff --git a/Documentation/devicetree/bindings/iio/adc/axp20x_adc.txt b/Documentation/devicetree/bindings/iio/adc/axp20x_adc.txt
new file mode 100644
index 000000000..7a6313913
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/axp20x_adc.txt
@@ -0,0 +1,48 @@
+* X-Powers AXP ADC bindings
+
+Required properties:
+ - compatible: should be one of:
+ - "x-powers,axp209-adc",
+ - "x-powers,axp221-adc",
+ - "x-powers,axp813-adc",
+ - #io-channel-cells: should be 1,
+
+Example:
+
+&axp22x {
+ adc {
+ compatible = "x-powers,axp221-adc";
+ #io-channel-cells = <1>;
+ };
+};
+
+ADC channels and their indexes per variant:
+
+AXP209
+------
+ 0 | acin_v
+ 1 | acin_i
+ 2 | vbus_v
+ 3 | vbus_i
+ 4 | pmic_temp
+ 5 | gpio0_v
+ 6 | gpio1_v
+ 7 | ipsout_v
+ 8 | batt_v
+ 9 | batt_chrg_i
+10 | batt_dischrg_i
+
+AXP22x
+------
+ 0 | pmic_temp
+ 1 | batt_v
+ 2 | batt_chrg_i
+ 3 | batt_dischrg_i
+
+AXP813
+------
+ 0 | pmic_temp
+ 1 | gpio0_v
+ 2 | batt_v
+ 3 | batt_chrg_i
+ 4 | batt_dischrg_i
diff --git a/Documentation/devicetree/bindings/iio/adc/brcm,iproc-static-adc.txt b/Documentation/devicetree/bindings/iio/adc/brcm,iproc-static-adc.txt
new file mode 100644
index 000000000..7b1b1e408
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/brcm,iproc-static-adc.txt
@@ -0,0 +1,40 @@
+* Broadcom's IPROC Static ADC controller
+
+Broadcom iProc ADC controller has 8 channels 10bit ADC.
+Allows user to convert analog input voltage values to digital.
+
+Required properties:
+
+- compatible: Must be "brcm,iproc-static-adc"
+
+- adc-syscon: Handler of syscon node defining physical base address of the
+ controller and length of memory mapped region.
+
+- #io-channel-cells = <1>; As ADC has multiple outputs
+ refer to Documentation/devicetree/bindings/iio/iio-bindings.txt for details.
+
+- io-channel-ranges:
+ refer to Documentation/devicetree/bindings/iio/iio-bindings.txt for details.
+
+- clocks: Clock used for this block.
+
+- clock-names: Clock name should be given as tsc_clk.
+
+- interrupts: interrupt line number.
+
+For example:
+
+ ts_adc_syscon: ts_adc_syscon@180a6000 {
+ compatible = "brcm,iproc-ts-adc-syscon","syscon";
+ reg = <0x180a6000 0xc30>;
+ };
+
+ adc: adc@180a6000 {
+ compatible = "brcm,iproc-static-adc";
+ adc-syscon = <&ts_adc_syscon>;
+ #io-channel-cells = <1>;
+ io-channel-ranges;
+ clocks = <&asiu_clks BCM_CYGNUS_ASIU_ADC_CLK>;
+ clock-names = "tsc_clk";
+ interrupts = <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
+ };
diff --git a/Documentation/devicetree/bindings/iio/adc/cosmic,10001-adc.yaml b/Documentation/devicetree/bindings/iio/adc/cosmic,10001-adc.yaml
new file mode 100644
index 000000000..4e695b97d
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/cosmic,10001-adc.yaml
@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/cosmic,10001-adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cosmic Circuits CC-10001 ADC
+
+maintainers:
+ - Jonathan Cameron <jic23@kernel.org>
+
+description:
+ Cosmic Circuits 10001 10-bit ADC device.
+
+properties:
+ compatible:
+ const: cosmic,10001-adc
+
+ reg:
+ maxItems: 1
+
+ adc-reserved-channels:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Bitmask of reserved channels, i.e. channels that cannot be
+ used by the OS.
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: adc
+
+ vref-supply: true
+
+ "#io-channel-cells":
+ const: 1
+
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - vref-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ adc@18101600 {
+ compatible = "cosmic,10001-adc";
+ reg = <0x18101600 0x24>;
+ adc-reserved-channels = <0x2>;
+ clocks = <&adc_clk>;
+ clock-names = "adc";
+ vref-supply = <&reg_1v8>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/dlg,da9150-gpadc.yaml b/Documentation/devicetree/bindings/iio/adc/dlg,da9150-gpadc.yaml
new file mode 100644
index 000000000..cc29a2f21
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/dlg,da9150-gpadc.yaml
@@ -0,0 +1,35 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/dlg,da9150-gpadc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Dialog Semiconductor DA9150 IIO GPADC
+
+maintainers:
+ - Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+
+description:
+ This patch adds support for general purpose ADC within the
+ DA9150 Charger & Fuel-Gauge IC.
+
+properties:
+ compatible:
+ const: dlg,da9150-gpadc
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - "#io-channel-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ adc {
+ compatible = "dlg,da9150-gpadc";
+ #io-channel-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/envelope-detector.txt b/Documentation/devicetree/bindings/iio/adc/envelope-detector.txt
new file mode 100644
index 000000000..27544bdd4
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/envelope-detector.txt
@@ -0,0 +1,54 @@
+Bindings for ADC envelope detector using a DAC and a comparator
+
+The DAC is used to find the peak level of an alternating voltage input
+signal by a binary search using the output of a comparator wired to
+an interrupt pin. Like so:
+ _
+ | \
+ input +------>-------|+ \
+ | \
+ .-------. | }---.
+ | | | / |
+ | dac|-->--|- / |
+ | | |_/ |
+ | | |
+ | | |
+ | irq|------<-------'
+ | |
+ '-------'
+
+Required properties:
+- compatible: Should be "axentia,tse850-envelope-detector"
+- io-channels: Channel node of the dac to be used for comparator input.
+- io-channel-names: Should be "dac".
+- interrupt specification for one client interrupt,
+ see ../../interrupt-controller/interrupts.txt for details.
+- interrupt-names: Should be "comp".
+
+Example:
+
+ &i2c {
+ dpot: mcp4651-104@28 {
+ compatible = "microchip,mcp4651-104";
+ reg = <0x28>;
+ #io-channel-cells = <1>;
+ };
+ };
+
+ dac: dac {
+ compatible = "dpot-dac";
+ vref-supply = <&reg_3v3>;
+ io-channels = <&dpot 0>;
+ io-channel-names = "dpot";
+ #io-channel-cells = <1>;
+ };
+
+ envelope-detector {
+ compatible = "axentia,tse850-envelope-detector";
+ io-channels = <&dac 0>;
+ io-channel-names = "dac";
+
+ interrupt-parent = <&gpio>;
+ interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
+ interrupt-names = "comp";
+ };
diff --git a/Documentation/devicetree/bindings/iio/adc/fsl,imx25-gcq.yaml b/Documentation/devicetree/bindings/iio/adc/fsl,imx25-gcq.yaml
new file mode 100644
index 000000000..e9103497e
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/fsl,imx25-gcq.yaml
@@ -0,0 +1,131 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/fsl,imx25-gcq.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale ADC GCQ device
+
+description:
+ This is a generic conversion queue device that can convert any of the
+ analog inputs using the ADC unit of the i.MX25.
+
+maintainers:
+ - Jonathan Cameron <jic23@kernel.org>
+
+properties:
+ compatible:
+ const: fsl,imx25-gcq
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ vref-ext-supply:
+ description:
+ The regulator supplying the ADC reference voltage.
+ Required when at least one subnode uses the this reference.
+
+ vref-xp-supply:
+ description:
+ The regulator supplying the ADC reference voltage on pin XP.
+ Required when at least one subnode uses this reference.
+
+ vref-yp-supply:
+ description:
+ The regulator supplying the ADC reference voltage on pin YP.
+ Required when at least one subnode uses this reference.
+
+ "#io-channel-cells":
+ const: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - "#address-cells"
+ - "#size-cells"
+
+patternProperties:
+ "[a-z][a-z0-9]+@[0-9a-f]+$":
+ type: object
+ description:
+ Child nodes used to define the reference voltages used for each channel
+
+ properties:
+ reg:
+ description: |
+ Number of the analog input.
+ 0: xp
+ 1: yp
+ 2: xn
+ 3: yn
+ 4: wiper
+ 5: inaux0
+ 6: inaux1
+ 7: inaux2
+ items:
+ - minimum: 0
+ maximum: 7
+
+ fsl,adc-refp:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ Specifies the positive reference input as defined in
+ <dt-bindings/iio/adc/fsl-imx25-gcq.h>
+ 0: YP voltage reference
+ 1: XP voltage reference
+ 2: External voltage reference
+ 3: Internal voltage reference (default)
+ minimum: 0
+ maximum: 3
+
+ fsl,adc-refn:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ Specifies the negative reference input as defined in
+ <dt-bindings/iio/adc/fsl-imx25-gcq.h>
+ 0: XN ground reference
+ 1: YN ground reference
+ 2: Internal ground reference
+ 3: External ground reference (default)
+ minimum: 0
+ maximum: 3
+
+ required:
+ - reg
+
+ additionalProperties: false
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/iio/adc/fsl-imx25-gcq.h>
+ soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ adc@50030800 {
+ compatible = "fsl,imx25-gcq";
+ reg = <0x50030800 0x60>;
+ interrupt-parent = <&tscadc>;
+ interrupts = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ inaux@5 {
+ reg = <5>;
+ fsl,adc-refp = <MX25_ADC_REFP_INT>;
+ fsl,adc-refn = <MX25_ADC_REFN_NGND>;
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/fsl,imx7d-adc.yaml b/Documentation/devicetree/bindings/iio/adc/fsl,imx7d-adc.yaml
new file mode 100644
index 000000000..afc5cc48a
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/fsl,imx7d-adc.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/fsl,imx7d-adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale ADC found on the imx7d SoC
+
+maintainers:
+ - Haibo Chen <haibo.chen@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx7d-adc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: adc
+
+ vref-supply: true
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - vref-supply
+ - "#io-channel-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/clock/imx7d-clock.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ adc@30610000 {
+ compatible = "fsl,imx7d-adc";
+ reg = <0x30610000 0x10000>;
+ interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clks IMX7D_ADC_ROOT_CLK>;
+ clock-names = "adc";
+ vref-supply = <&reg_vcc_3v3_mcu>;
+ #io-channel-cells = <1>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/fsl,vf610-adc.yaml b/Documentation/devicetree/bindings/iio/adc/fsl,vf610-adc.yaml
new file mode 100644
index 000000000..1ca571056
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/fsl,vf610-adc.yaml
@@ -0,0 +1,81 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/fsl,vf610-adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ADC found on Freescale vf610 and similar SoCs
+
+maintainers:
+ - Fugang Duan <fugang.duan@nxp.com>
+
+description:
+ ADCs found on vf610/i.MX6slx and upward SoCs from Freescale.
+
+properties:
+ compatible:
+ const: fsl,vf610-adc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ description: ADC source clock (ipg clock)
+ maxItems: 1
+
+ clock-names:
+ const: adc
+
+ vref-supply:
+ description: ADC reference voltage supply.
+
+ fsl,adck-max-frequency:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 3
+ maxItems: 3
+ description: |
+ Maximum frequencies from datasheet operating requirements.
+ Three values necessary to cover the 3 conversion modes.
+ * Frequency in normal mode (ADLPC=0, ADHSC=0)
+ * Frequency in high-speed mode (ADLPC=0, ADHSC=1)
+ * Frequency in low-power mode (ADLPC=1, ADHSC=0)
+
+ min-sample-time:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Minimum sampling time in nanoseconds. This value has
+ to be chosen according to the conversion mode and the connected analog
+ source resistance (R_as) and capacitance (C_as). Refer the datasheet's
+ operating requirements. A safe default across a wide range of R_as and
+ C_as as well as conversion modes is 1000ns.
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - vref-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/vf610-clock.h>
+ adc@4003b000 {
+ compatible = "fsl,vf610-adc";
+ reg = <0x4003b000 0x1000>;
+ interrupts = <0 53 0x04>;
+ clocks = <&clks VF610_CLK_ADC0>;
+ clock-names = "adc";
+ fsl,adck-max-frequency = <30000000>, <40000000>, <20000000>;
+ vref-supply = <&reg_vcc_3v3_mcu>;
+ min-sample-time = <10000>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/holt,hi8435.yaml b/Documentation/devicetree/bindings/iio/adc/holt,hi8435.yaml
new file mode 100644
index 000000000..52490cbb0
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/holt,hi8435.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/holt,hi8435.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Holt Integrated Circuits HI-8435 SPI threshold detector
+
+maintainers:
+ - Vladimir Barinov <vladimir.barinov@cogentembedded.com>
+
+description: |
+ Datasheet: http://www.holtic.com/documents/427-hi-8435_v-rev-lpdf.do
+
+properties:
+ compatible:
+ const: holt,hi8435
+
+ reg:
+ maxItems: 1
+
+ gpios:
+ description:
+ GPIO used for controlling the reset pin
+ maxItems: 1
+
+ spi-max-frequency: true
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ threshold-detector@0 {
+ compatible = "holt,hi8435";
+ reg = <0>;
+ gpios = <&gpio6 1 0>;
+ spi-max-frequency = <1000000>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/ingenic,adc.yaml b/Documentation/devicetree/bindings/iio/adc/ingenic,adc.yaml
new file mode 100644
index 000000000..9f414dbda
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ingenic,adc.yaml
@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2019-2020 Artur Rojek
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/iio/adc/ingenic,adc.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Ingenic JZ47xx ADC controller IIO bindings
+
+maintainers:
+ - Artur Rojek <contact@artur-rojek.eu>
+
+description: >
+ Industrial I/O subsystem bindings for ADC controller found in
+ Ingenic JZ47xx SoCs.
+
+ ADC clients must use the format described in iio-bindings.txt, giving
+ a phandle and IIO specifier pair ("io-channels") to the ADC controller.
+
+properties:
+ compatible:
+ enum:
+ - ingenic,jz4725b-adc
+ - ingenic,jz4740-adc
+ - ingenic,jz4770-adc
+
+ '#io-channel-cells':
+ const: 1
+ description:
+ Must be set to <1> to indicate channels are selected by index.
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: adc
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - '#io-channel-cells'
+ - reg
+ - clocks
+ - clock-names
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/jz4740-cgu.h>
+ #include <dt-bindings/iio/adc/ingenic,adc.h>
+
+ adc@10070000 {
+ compatible = "ingenic,jz4740-adc";
+ #io-channel-cells = <1>;
+
+ reg = <0x10070000 0x30>;
+
+ clocks = <&cgu JZ4740_CLK_ADC>;
+ clock-names = "adc";
+
+ interrupt-parent = <&intc>;
+ interrupts = <18>;
+ };
diff --git a/Documentation/devicetree/bindings/iio/adc/lltc,ltc2496.yaml b/Documentation/devicetree/bindings/iio/adc/lltc,ltc2496.yaml
new file mode 100644
index 000000000..6a991e9f7
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/lltc,ltc2496.yaml
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/lltc,ltc2496.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Linear Technology / Analog Devices LTC2496 ADC
+
+maintainers:
+ - Lars-Peter Clausen <lars@metafoo.de>
+ - Michael Hennerich <Michael.Hennerich@analog.com>
+ - Stefan Popa <stefan.popa@analog.com>
+
+properties:
+ compatible:
+ enum:
+ - lltc,ltc2496
+
+ vref-supply:
+ description: phandle to an external regulator providing the reference voltage
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+ reg:
+ description: spi chipselect number according to the usual spi bindings
+
+ spi-max-frequency:
+ description: maximal spi bus frequency supported
+
+required:
+ - compatible
+ - vref-supply
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "lltc,ltc2496";
+ reg = <0>;
+ vref-supply = <&ltc2496_reg>;
+ spi-max-frequency = <2000000>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/adc/lltc,ltc2497.yaml b/Documentation/devicetree/bindings/iio/adc/lltc,ltc2497.yaml
new file mode 100644
index 000000000..c1772b568
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/lltc,ltc2497.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/lltc,ltc2497.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Linear Technology / Analog Devices LTC2497 ADC
+
+maintainers:
+ - Michael Hennerich <michael.hennerich@analog.com>
+
+description: |
+ 16bit ADC supporting up to 16 single ended or 8 differential inputs.
+ I2C interface.
+
+properties:
+ compatible:
+ const:
+ lltc,ltc2497
+
+ reg: true
+ vref-supply: true
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - vref-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@76 {
+ compatible = "lltc,ltc2497";
+ reg = <0x76>;
+ vref-supply = <&ltc2497_reg>;
+ #io-channel-cells = <1>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/marvell,berlin2-adc.yaml b/Documentation/devicetree/bindings/iio/adc/marvell,berlin2-adc.yaml
new file mode 100644
index 000000000..b3b292fb1
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/marvell,berlin2-adc.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/marvell,berlin2-adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Berlin 2 Analog to Digital Converter (ADC)
+
+maintainers:
+ - Antoine Tenart <antoine.tenart@free-electrons.com>
+
+description:
+ The Berlin ADC has 8 channels, with one connected to a temperature sensor.
+ It is part of the system controller register set. The ADC node should be a
+ sub-node of the system controller node.
+
+properties:
+ compatible:
+ const: marvell,berlin2-adc
+
+ interrupts:
+ minItems: 2
+ maxItems: 2
+
+ interrupt-names:
+ items:
+ - const: adc
+ - const: tsen
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - interrupts
+ - interrupt-names
+
+additionalProperties: false
+
+examples:
+ - |
+ sysctrl {
+ adc {
+ compatible = "marvell,berlin2-adc";
+ interrupt-parent = <&sic>;
+ interrupts = <12>, <14>;
+ interrupt-names = "adc", "tsen";
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/maxim,max11100.yaml b/Documentation/devicetree/bindings/iio/adc/maxim,max11100.yaml
new file mode 100644
index 000000000..0cf87556e
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/maxim,max11100.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/maxim,max11100.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX11100 ADC
+
+maintainers:
+ - Jacopo Mondi <jacopo@jmondi.org>
+
+description: |
+ Single channel 16 bit ADC with SPI interface.
+
+properties:
+ compatible:
+ const: maxim,max11100
+
+ reg:
+ maxItems: 1
+
+ vref-supply:
+ description: External reference, needed to establish input scaling.
+
+ spi-max-frequency:
+ minimum: 100000
+ maximum: 4800000
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - vref-supply
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "maxim,max11100";
+ reg = <0>;
+ vref-supply = <&adc_vref>;
+ spi-max-frequency = <240000>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/maxim,max1118.yaml b/Documentation/devicetree/bindings/iio/adc/maxim,max1118.yaml
new file mode 100644
index 000000000..e948b3e37
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/maxim,max1118.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/maxim,max1118.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX1118 and similar ADCs
+
+maintainers:
+ - Akinobu Mita <akinobu.mita@gmail.com>
+
+description: |
+ Dual channel 8bit ADCs.
+
+properties:
+ compatible:
+ enum:
+ - maxim,max1117
+ - maxim,max1118
+ - maxim,max1119
+
+ reg:
+ maxItems: 1
+
+ spi-max-frequency:
+ maximum: 5000000
+
+ vref-supply:
+ description: External reference, needed to establish input scaling
+
+if:
+ properties:
+ compatible:
+ contains:
+ const: maxim,max1118
+then:
+ required:
+ - vref-supply
+else:
+ properties:
+ vref-supply: false
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "maxim,max1118";
+ reg = <0>;
+ vref-supply = <&adc_vref>;
+ spi-max-frequency = <1000000>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/maxim,max1238.yaml b/Documentation/devicetree/bindings/iio/adc/maxim,max1238.yaml
new file mode 100644
index 000000000..50bcd72ac
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/maxim,max1238.yaml
@@ -0,0 +1,78 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/maxim,max1238.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX1238 and similar ADCs
+
+maintainers:
+ - Jonathan Cameron <jic23@kernel.org>
+
+description: |
+ Family of simple ADCs with i2c inteface and internal references.
+
+properties:
+ compatible:
+ enum:
+ - maxim,max1036
+ - maxim,max1037
+ - maxim,max1038
+ - maxim,max1039
+ - maxim,max1136
+ - maxim,max1137
+ - maxim,max1138
+ - maxim,max1139
+ - maxim,max1236
+ - maxim,max1237
+ - maxim,max1238
+ - maxim,max1239
+ - maxim,max11600
+ - maxim,max11601
+ - maxim,max11602
+ - maxim,max11603
+ - maxim,max11604
+ - maxim,max11605
+ - maxim,max11606
+ - maxim,max11607
+ - maxim,max11608
+ - maxim,max11609
+ - maxim,max11610
+ - maxim,max11611
+ - maxim,max11612
+ - maxim,max11613
+ - maxim,max11614
+ - maxim,max11615
+ - maxim,max11616
+ - maxim,max11617
+ - maxim,max11644
+ - maxim,max11645
+ - maxim,max11646
+ - maxim,max11647
+
+ reg:
+ maxItems: 1
+
+ vcc-supply: true
+ vref-supply:
+ description: Optional external reference. If not supplied, internal
+ reference will be used.
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@36 {
+ compatible = "maxim,max1238";
+ reg = <0x36>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/maxim,max1241.yaml b/Documentation/devicetree/bindings/iio/adc/maxim,max1241.yaml
new file mode 100644
index 000000000..4c7e0d94b
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/maxim,max1241.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2020 Alexandru Lazar
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/maxim,max1241.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX1241 12-bit, single-channel analog to digital converter
+
+maintainers:
+ - Alexandru Lazar <alazar@startmail.com>
+
+description: |
+ Bindings for the max1241 12-bit, single-channel ADC device. Datasheet
+ can be found at:
+ https://datasheets.maximintegrated.com/en/ds/MAX1240-MAX1241.pdf
+
+properties:
+ compatible:
+ enum:
+ - maxim,max1241
+
+ reg:
+ maxItems: 1
+
+ vdd-supply:
+ description:
+ Device tree identifier of the regulator that powers the ADC.
+
+ vref-supply:
+ description:
+ Device tree identifier of the regulator that provides the external
+ reference voltage.
+
+ shutdown-gpios:
+ description:
+ GPIO spec for the GPIO pin connected to the ADC's /SHDN pin. If
+ specified, the /SHDN pin will be asserted between conversions,
+ thus enabling power-down mode.
+ maxItems: 1
+
+ spi-max-frequency: true
+
+required:
+ - compatible
+ - reg
+ - vdd-supply
+ - vref-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "maxim,max1241";
+ reg = <0>;
+ vdd-supply = <&adc_vdd>;
+ vref-supply = <&adc_vref>;
+ spi-max-frequency = <1000000>;
+ shutdown-gpios = <&gpio 26 1>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/adc/maxim,max1363.yaml b/Documentation/devicetree/bindings/iio/adc/maxim,max1363.yaml
new file mode 100644
index 000000000..e04f09f35
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/maxim,max1363.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/maxim,max1363.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX1363 and similar ADCs
+
+maintainers:
+ - Jonathan Cameron <jic23@kernel.org>
+
+description: |
+ Family of ADCs with i2c inteface, internal references and threshold
+ monitoring.
+
+properties:
+ compatible:
+ enum:
+ - maxim,max1361
+ - maxim,max1362
+ - maxim,max1363
+ - maxim,max1364
+
+ reg:
+ maxItems: 1
+
+ vcc-supply: true
+ vref-supply:
+ description: Optional external reference. If not supplied, internal
+ reference will be used.
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@36 {
+ compatible = "maxim,max1363";
+ reg = <0x36>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/maxim,max9611.yaml b/Documentation/devicetree/bindings/iio/adc/maxim,max9611.yaml
new file mode 100644
index 000000000..9475a9e6e
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/maxim,max9611.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/maxim,max9611.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX9611 and similar current sense amplifiers with integrated ADCs
+
+maintainers:
+ - Jacopo Mondi <jacopo@jmondi.org>
+
+description: |
+ These devices combine a high-side current sense amplifier with a 12 bit ADC.
+ They have an i2c interface.
+
+properties:
+ compatible:
+ enum:
+ - maxim,max9611
+ - maxim,max9612
+
+ reg:
+ maxItems: 1
+
+ shunt-resistor-micro-ohms:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ Value in micro Ohms of the shunt resistor connected between the RS+ and
+ RS- inputs, across which the current is measured. Value needed to compute
+ the scaling of the measured current.
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - shunt-resistor-micro-ohms
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@7c {
+ compatible = "maxim,max9611";
+ reg = <0x7c>;
+ shunt-resistor-micro-ohms = <5000>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/microchip,mcp3201.yaml b/Documentation/devicetree/bindings/iio/adc/microchip,mcp3201.yaml
new file mode 100644
index 000000000..cbbac4ce5
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/microchip,mcp3201.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/microchip,mcp3201.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip mcp3201 and similar ADCs
+
+maintainers:
+ - Oskar Andero <oskar.andero@gmail.com>
+
+description: |
+ Family of simple ADCs with an I2C inteface.
+
+properties:
+ compatible:
+ enum:
+ - microchip,mcp3001
+ - microchip,mcp3002
+ - microchip,mcp3004
+ - microchip,mcp3008
+ - microchip,mcp3201
+ - microchip,mcp3202
+ - microchip,mcp3204
+ - microchip,mcp3208
+ - microchip,mcp3301
+ - microchip,mcp3550-50
+ - microchip,mcp3550-60
+ - microchip,mcp3551
+ - microchip,mcp3553
+
+ reg:
+ maxItems: 1
+
+ spi-max-frequency: true
+ spi-cpha: true
+ spi-cpol: true
+
+ vref-supply:
+ description: External reference.
+
+ "#io-channel-cells":
+ const: 1
+
+dependencies:
+ spi-cpol: [ spi-cpha ]
+ spi-cpha: [ spi-cpol ]
+
+required:
+ - compatible
+ - reg
+ - vref-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "microchip,mcp3002";
+ reg = <0>;
+ vref-supply = <&vref_reg>;
+ spi-cpha;
+ spi-cpol;
+ #io-channel-cells = <1>;
+ };
+ adc@1 {
+ compatible = "microchip,mcp3002";
+ reg = <1>;
+ vref-supply = <&vref_reg>;
+ spi-max-frequency = <1500000>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml b/Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml
new file mode 100644
index 000000000..95ab285f4
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+# Copyright 2019 Marcus Folkesson <marcus.folkesson@gmail.com>
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/iio/adc/microchip,mcp3911.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Microchip MCP3911 Dual channel analog front end (ADC)
+
+maintainers:
+ - Marcus Folkesson <marcus.folkesson@gmail.com>
+ - Kent Gustavsson <nedo80@gmail.com>
+
+description: |
+ Bindings for the Microchip MCP3911 Dual channel ADC device. Datasheet can be
+ found here: https://ww1.microchip.com/downloads/en/DeviceDoc/20002286C.pdf
+
+properties:
+ compatible:
+ enum:
+ - microchip,mcp3911
+
+ reg:
+ maxItems: 1
+
+ spi-max-frequency:
+ maximum: 20000000
+
+ clocks:
+ description: |
+ Phandle and clock identifier for external sampling clock.
+ If not specified, the internal crystal oscillator will be used.
+ maxItems: 1
+
+ interrupts:
+ description: IRQ line of the ADC
+ maxItems: 1
+
+ microchip,device-addr:
+ description: Device address when multiple MCP3911 chips are present on the same SPI bus.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1, 2, 3]
+ default: 0
+
+ vref-supply:
+ description: |
+ Phandle to the external reference voltage supply.
+ If not specified, the internal voltage reference (1.2V) will be used.
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "microchip,mcp3911";
+ reg = <0>;
+ interrupt-parent = <&gpio5>;
+ interrupts = <15 2>;
+ spi-max-frequency = <20000000>;
+ microchip,device-addr = <0>;
+ vref-supply = <&vref_reg>;
+ clocks = <&xtal>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/adc/motorola,cpcap-adc.yaml b/Documentation/devicetree/bindings/iio/adc/motorola,cpcap-adc.yaml
new file mode 100644
index 000000000..a6cb857a2
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/motorola,cpcap-adc.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/motorola,cpcap-adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Motorola CPCAP PMIC ADC binding
+
+maintainers:
+ - Tony Lindgren <tony@atomide.com>
+
+description:
+ On Motorola phones like droid 4 there is a custom CPCAP PMIC. This PMIC
+ has ADCs that are used for battery charging and USB PHY VBUS and ID pin
+ detection.
+
+properties:
+ compatible:
+ enum:
+ - motorola,cpcap-adc
+ - motorola,mapphone-cpcap-adc
+
+ interrupts:
+ maxItems: 1
+
+ interrupt-names:
+ const: adcdone
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - interrupts
+ - "#io-channel-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ pmic {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ adc {
+ compatible = "motorola,mapphone-cpcap-adc";
+ interrupt-parent = <&cpcap>;
+ interrupts = <8 IRQ_TYPE_NONE>;
+ interrupt-names = "adcdone";
+ #io-channel-cells = <1>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/mt6577_auxadc.txt b/Documentation/devicetree/bindings/iio/adc/mt6577_auxadc.txt
new file mode 100644
index 000000000..78c06e05c
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/mt6577_auxadc.txt
@@ -0,0 +1,33 @@
+* 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,mt2712-auxadc": For MT2712 family of SoCs
+ - "mediatek,mt6765-auxadc": For MT6765 family of SoCs
+ - "mediatek,mt7622-auxadc": For MT7622 family of SoCs
+ - "mediatek,mt8173-auxadc": For MT8173 family of SoCs
+ - "mediatek,mt8183-auxadc", "mediatek,mt8173-auxadc": For MT8183 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/Documentation/devicetree/bindings/iio/adc/nuvoton,nau7802.yaml b/Documentation/devicetree/bindings/iio/adc/nuvoton,nau7802.yaml
new file mode 100644
index 000000000..04566ff02
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/nuvoton,nau7802.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/nuvoton,nau7802.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nuvoton NAU7802 I2c Analog to Digital Converter (ADC)
+
+maintainers:
+ - Alexandre Belloni <alexandre.belloni@bootlin.com>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ compatible:
+ const: nuvoton,nau7802
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ nuvoton,vldo:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Internal reference voltage in millivolts to be configured.
+ minimum: 2400
+ maximum: 4500
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ nau7802@2a {
+ compatible = "nuvoton,nau7802";
+ reg = <0x2a>;
+ nuvoton,vldo = <3000>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/nuvoton,npcm750-adc.yaml b/Documentation/devicetree/bindings/iio/adc/nuvoton,npcm750-adc.yaml
new file mode 100644
index 000000000..001cf263b
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/nuvoton,npcm750-adc.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/nuvoton,npcm750-adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nuvoton NPCM BMC Analog to Digital Converter (ADC)
+
+maintainers:
+ - Tomer Maimon <tmaimon77@gmail.com>
+
+description:
+ The NPCM ADC is a 10-bit converter for eight channel inputs.
+
+properties:
+ compatible:
+ const: nuvoton,npcm750-adc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+ description: ADC interrupt, should be set for falling edge.
+
+ resets:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+ description: If not provided the defulat ADC sample rate will be used.
+
+ vref-supply:
+ description: If not supplied, the internal voltage reference will be used.
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - resets
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/nuvoton,npcm7xx-clock.h>
+ #include <dt-bindings/reset/nuvoton,npcm7xx-reset.h>
+ soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ adc@f000c000 {
+ compatible = "nuvoton,npcm750-adc";
+ reg = <0xf000c000 0x8>;
+ interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk NPCM7XX_CLK_ADC>;
+ resets = <&rstc NPCM7XX_RESET_IPSRST1 NPCM7XX_RESET_ADC>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/nxp,lpc1850-adc.yaml b/Documentation/devicetree/bindings/iio/adc/nxp,lpc1850-adc.yaml
new file mode 100644
index 000000000..6404fb73f
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/nxp,lpc1850-adc.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/nxp,lpc1850-adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP LPC1850 ADC bindings
+
+maintainers:
+ - Joachim Eastwood <manabian@gmail.com>
+
+description:
+ Supports the ADC found on the LPC1850 SoC.
+
+properties:
+ compatible:
+ const: nxp,lpc1850-adc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ vref-supply: true
+
+ resets:
+ maxItems: 1
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - vref-supply
+ - resets
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/lpc18xx-ccu.h>
+ soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ adc@400e3000 {
+ compatible = "nxp,lpc1850-adc";
+ reg = <0x400e3000 0x1000>;
+ interrupts = <17>;
+ clocks = <&ccu1 CLK_APB3_ADC0>;
+ vref-supply = <&reg_vdda>;
+ resets = <&rgu 40>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/nxp,lpc3220-adc.yaml b/Documentation/devicetree/bindings/iio/adc/nxp,lpc3220-adc.yaml
new file mode 100644
index 000000000..2c5032be8
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/nxp,lpc3220-adc.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/nxp,lpc3220-adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP LPC3220 SoC ADC controller
+
+maintainers:
+ - Gregory Clement <gregory.clement@bootlin.com>
+
+description:
+ This hardware block has been used on several LPC32XX SoCs.
+
+properties:
+ compatible:
+ const: nxp,lpc3220-adc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ vref-supply: true
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ adc@40048000 {
+ compatible = "nxp,lpc3220-adc";
+ reg = <0x40048000 0x1000>;
+ interrupt-parent = <&mic>;
+ interrupts = <39 0>;
+ vref-supply = <&vcc>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/palmas-gpadc.txt b/Documentation/devicetree/bindings/iio/adc/palmas-gpadc.txt
new file mode 100644
index 000000000..4bb9a8606
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/palmas-gpadc.txt
@@ -0,0 +1,48 @@
+* Palmas general purpose ADC IP block devicetree bindings
+
+Channels list:
+ 0 battery type
+ 1 battery temp NTC (optional current source)
+ 2 GP
+ 3 temp (with ext. diode, optional current source)
+ 4 GP
+ 5 GP
+ 6 VBAT_SENSE
+ 7 VCC_SENSE
+ 8 Backup Battery voltage
+ 9 external charger (VCHG)
+ 10 VBUS
+ 11 DC-DC current probe (how does this work?)
+ 12 internal die temp
+ 13 internal die temp
+ 14 USB ID pin voltage
+ 15 test network
+
+Required properties:
+- compatible : Must be "ti,palmas-gpadc".
+- #io-channel-cells: Should be set to <1>.
+
+Optional sub-nodes:
+ti,channel0-current-microamp: Channel 0 current in uA.
+ Values are rounded to derive 0uA, 5uA, 15uA, 20uA.
+ti,channel3-current-microamp: Channel 3 current in uA.
+ Values are rounded to derive 0uA, 10uA, 400uA, 800uA.
+ti,enable-extended-delay: Enable extended delay.
+
+Example:
+
+pmic {
+ compatible = "ti,twl6035-pmic", "ti,palmas-pmic";
+ ...
+ gpadc {
+ compatible = "ti,palmas-gpadc";
+ interrupts = <18 0
+ 16 0
+ 17 0>;
+ #io-channel-cells = <1>;
+ ti,channel0-current-microamp = <5>;
+ ti,channel3-current-microamp = <10>;
+ };
+ };
+ ...
+};
diff --git a/Documentation/devicetree/bindings/iio/adc/qcom,pm8xxx-xoadc.txt b/Documentation/devicetree/bindings/iio/adc/qcom,pm8xxx-xoadc.txt
new file mode 100644
index 000000000..3ae061277
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/qcom,pm8xxx-xoadc.txt
@@ -0,0 +1,157 @@
+Qualcomm's PM8xxx voltage XOADC
+
+The Qualcomm PM8xxx PMICs contain a HK/XO ADC (Housekeeping/Crystal
+oscillator ADC) encompassing PM8018, PM8038, PM8058 and PM8921.
+
+Required properties:
+
+- compatible: should be one of:
+ "qcom,pm8018-adc"
+ "qcom,pm8038-adc"
+ "qcom,pm8058-adc"
+ "qcom,pm8921-adc"
+
+- reg: should contain the ADC base address in the PMIC, typically
+ 0x197.
+
+- xoadc-ref-supply: should reference a regulator that can supply
+ a reference voltage on demand. The reference voltage may vary
+ with PMIC variant but is typically something like 2.2 or 1.8V.
+
+The following required properties are standard for IO channels, see
+iio-bindings.txt for more details, but notice that this particular
+ADC has a special addressing scheme that require two cells for
+identifying each ADC channel:
+
+- #address-cells: should be set to <2>, the first cell is the
+ prescaler (on PM8058) or premux (on PM8921) with two valid bits
+ so legal values are 0x00, 0x01 or 0x02. The second cell
+ is the main analog mux setting (0x00..0x0f). The combination
+ of prescaler/premux and analog mux uniquely addresses a hardware
+ channel on all systems.
+
+- #size-cells: should be set to <0>
+
+- #io-channel-cells: should be set to <2>, again the cells are
+ precaler or premux followed by the analog muxing line.
+
+- interrupts: should refer to the parent PMIC interrupt controller
+ and reference the proper ADC interrupt.
+
+Required subnodes:
+
+The ADC channels are configured as subnodes of the ADC.
+
+Since some of them are used for calibrating the ADC, these nodes are
+compulsory:
+
+adc-channel@c {
+ reg = <0x00 0x0c>;
+};
+
+adc-channel@d {
+ reg = <0x00 0x0d>;
+};
+
+adc-channel@f {
+ reg = <0x00 0x0f>;
+};
+
+These three nodes are used for absolute and ratiometric calibration
+and only need to have these reg values: they are by hardware definition
+1:1 ratio converters that sample 625, 1250 and 0 milliV and create
+an interpolation calibration for all other ADCs.
+
+Optional subnodes: any channels other than channels [0x00 0x0c],
+[0x00 0x0d] and [0x00 0x0f] are optional.
+
+Required channel node properties:
+
+- reg: should contain the hardware channel number in the range
+ 0 .. 0xff (8 bits).
+
+Optional channel node properties:
+
+- qcom,decimation:
+ Value type: <u32>
+ Definition: This parameter is used to decrease the ADC sampling rate.
+ Quicker measurements can be made by reducing the decimation ratio.
+ Valid values are 512, 1024, 2048, 4096.
+ If the property is not found, a default value of 512 will be used.
+
+- qcom,ratiometric:
+ Value type: <u32>
+ Definition: Channel calibration type. If this property is specified
+ VADC will use a special voltage references for channel
+ calibration. The available references are specified in the
+ as a u32 value setting (see below) and it is compulsory
+ to also specify this reference if ratiometric calibration
+ is selected.
+
+ If the property is not found, the channel will be
+ calibrated with the 0.625V and 1.25V reference channels, also
+ known as an absolute calibration.
+ The reference voltage pairs when using ratiometric calibration:
+ 0 = XO_IN/XOADC_GND
+ 1 = PMIC_IN/XOADC_GND
+ 2 = PMIC_IN/BMS_CSP
+ 3 (invalid)
+ 4 = XOADC_GND/XOADC_GND
+ 5 = XOADC_VREF/XOADC_GND
+
+Example:
+
+xoadc: xoadc@197 {
+ compatible = "qcom,pm8058-adc";
+ reg = <0x197>;
+ interrupts-extended = <&pm8058 76 IRQ_TYPE_EDGE_RISING>;
+ #address-cells = <2>;
+ #size-cells = <0>;
+ #io-channel-cells = <2>;
+
+ vcoin: adc-channel@0 {
+ reg = <0x00 0x00>;
+ };
+ vbat: adc-channel@1 {
+ reg = <0x00 0x01>;
+ };
+ dcin: adc-channel@2 {
+ reg = <0x00 0x02>;
+ };
+ ichg: adc-channel@3 {
+ reg = <0x00 0x03>;
+ };
+ vph_pwr: adc-channel@4 {
+ reg = <0x00 0x04>;
+ };
+ usb_vbus: adc-channel@a {
+ reg = <0x00 0x0a>;
+ };
+ die_temp: adc-channel@b {
+ reg = <0x00 0x0b>;
+ };
+ ref_625mv: adc-channel@c {
+ reg = <0x00 0x0c>;
+ };
+ ref_1250mv: adc-channel@d {
+ reg = <0x00 0x0d>;
+ };
+ ref_325mv: adc-channel@e {
+ reg = <0x00 0x0e>;
+ };
+ ref_muxoff: adc-channel@f {
+ reg = <0x00 0x0f>;
+ };
+};
+
+/* IIO client node */
+iio-hwmon {
+ compatible = "iio-hwmon";
+ io-channels = <&xoadc 0x00 0x01>, /* Battery */
+ <&xoadc 0x00 0x02>, /* DC in (charger) */
+ <&xoadc 0x00 0x04>, /* VPH the main system voltage */
+ <&xoadc 0x00 0x0b>, /* Die temperature */
+ <&xoadc 0x00 0x0c>, /* Reference voltage 1.25V */
+ <&xoadc 0x00 0x0d>, /* Reference voltage 0.625V */
+ <&xoadc 0x00 0x0e>; /* Reference voltage 0.325V */
+};
diff --git a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-iadc.txt b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-iadc.txt
new file mode 100644
index 000000000..4e36d6e2f
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-iadc.txt
@@ -0,0 +1,46 @@
+Qualcomm's SPMI PMIC current ADC
+
+QPNP PMIC current ADC (IADC) provides interface to clients to read current.
+A 16 bit ADC is used for current measurements. IADC can measure the current
+through an external resistor (channel 1) or internal (built-in) resistor
+(channel 0). When using an external resistor it is to be described by
+qcom,external-resistor-micro-ohms property.
+
+IADC node:
+
+- compatible:
+ Usage: required
+ Value type: <string>
+ Definition: Should contain "qcom,spmi-iadc".
+
+- reg:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: IADC base address and length in the SPMI PMIC register map
+
+- interrupts:
+ Usage: optional
+ Value type: <prop-encoded-array>
+ Definition: End of ADC conversion.
+
+- qcom,external-resistor-micro-ohms:
+ Usage: optional
+ Value type: <u32>
+ Definition: Sense resister value in micro Ohm.
+ If not defined value of 10000 micro Ohms will be used.
+
+Example:
+ /* IADC node */
+ pmic_iadc: iadc@3600 {
+ compatible = "qcom,spmi-iadc";
+ reg = <0x3600 0x100>;
+ interrupts = <0x0 0x36 0x0 IRQ_TYPE_EDGE_RISING>;
+ qcom,external-resistor-micro-ohms = <10000>;
+ #io-channel-cells = <1>;
+ };
+
+ /* IIO client node */
+ bat {
+ io-channels = <&pmic_iadc 0>;
+ io-channel-names = "iadc";
+ };
diff --git a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml
new file mode 100644
index 000000000..7f4f827c5
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml
@@ -0,0 +1,280 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/qcom,spmi-vadc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm's SPMI PMIC ADC
+
+maintainers:
+ - Andy Gross <agross@kernel.org>
+ - Bjorn Andersson <bjorn.andersson@linaro.org>
+
+description: |
+ SPMI PMIC voltage ADC (VADC) provides interface to clients to read
+ voltage. The VADC is a 15-bit sigma-delta ADC.
+ SPMI PMIC5/PMIC7 voltage ADC (ADC) provides interface to clients to read
+ voltage. The VADC is a 16-bit sigma-delta ADC.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - const: qcom,pms405-adc
+ - const: qcom,spmi-adc-rev2
+
+ - items:
+ - enum:
+ - qcom,spmi-vadc
+ - qcom,spmi-adc5
+ - qcom,spmi-adc-rev2
+ - qcom,spmi-adc7
+
+ reg:
+ description: VADC base address in the SPMI PMIC register map
+ maxItems: 1
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ '#io-channel-cells':
+ const: 1
+
+ interrupts:
+ maxItems: 1
+ description:
+ End of conversion interrupt.
+
+ io-channel-ranges: true
+
+required:
+ - compatible
+ - reg
+ - '#address-cells'
+ - '#size-cells'
+ - '#io-channel-cells'
+
+patternProperties:
+ "^.*@[0-9a-f]+$":
+ type: object
+ description: |
+ Represents the external channels which are connected to the ADC.
+ For compatible property "qcom,spmi-vadc" following channels, also known as
+ reference point channels, are used for result calibration and their channel
+ configuration nodes should be defined:
+ VADC_REF_625MV and/or VADC_SPARE1(based on PMIC version) VADC_REF_1250MV,
+ VADC_GND_REF and VADC_VDD_VADC.
+
+ properties:
+ reg:
+ description: |
+ ADC channel number.
+ See include/dt-bindings/iio/qcom,spmi-vadc.h
+ For PMIC7 ADC, the channel numbers are specified separately per PMIC
+ in the PMIC-specific files in include/dt-bindings/iio/.
+
+ label:
+ $ref: /schemas/types.yaml#/definitions/string
+ description: |
+ ADC input of the platform as seen in the schematics.
+ For thermistor inputs connected to generic AMUX or GPIO inputs
+ these can vary across platform for the same pins. Hence select
+ the platform schematics name for this channel.
+
+ qcom,decimation:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ This parameter is used to decrease ADC sampling rate.
+ Quicker measurements can be made by reducing decimation ratio.
+
+ qcom,pre-scaling:
+ description: |
+ Used for scaling the channel input signal before the signal is
+ fed to VADC. The configuration for this node is to know the
+ pre-determined ratio and use it for post scaling. It is a pair of
+ integers, denoting the numerator and denominator of the fraction by which
+ input signal is multiplied. For example, <1 3> indicates the signal is scaled
+ down to 1/3 of its value before ADC measurement.
+ If property is not found default value depending on chip will be used.
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ oneOf:
+ - items:
+ - const: 1
+ - enum: [ 1, 3, 4, 6, 20, 8, 10 ]
+ - items:
+ - const: 10
+ - const: 81
+
+ qcom,ratiometric:
+ description: |
+ Channel calibration type.
+ - For compatible property "qcom,spmi-vadc", if this property is
+ specified VADC will use the VDD reference (1.8V) and GND for
+ channel calibration. If property is not found, channel will be
+ calibrated with 0.625V and 1.25V reference channels, also
+ known as absolute calibration.
+ - For compatible property "qcom,spmi-adc5", "qcom,spmi-adc7" and
+ "qcom,spmi-adc-rev2", if this property is specified VADC will use
+ the VDD reference (1.875V) and GND for channel calibration. If
+ property is not found, channel will be calibrated with 0V and 1.25V
+ reference channels, also known as absolute calibration.
+ type: boolean
+
+ qcom,hw-settle-time:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ Time between AMUX getting configured and the ADC starting
+ conversion. The 'hw_settle_time' is an index used from valid values
+ and programmed in hardware to achieve the hardware settling delay.
+
+ qcom,avg-samples:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ Number of samples to be used for measurement.
+ Averaging provides the option to obtain a single measurement
+ from the ADC that is an average of multiple samples. The value
+ selected is 2^(value).
+
+ required:
+ - reg
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: qcom,spmi-vadc
+
+ then:
+ patternProperties:
+ "^.*@[0-9a-f]+$":
+ properties:
+ qcom,decimation:
+ enum: [ 512, 1024, 2048, 4096 ]
+ default: 512
+
+ qcom,hw-settle-time:
+ enum: [ 0, 100, 200, 300, 400, 500, 600, 700, 800, 900, 1, 2,
+ 4, 6, 8, 10 ]
+ default: 0
+
+ qcom,avg-samples:
+ enum: [ 1, 2, 4, 8, 16, 32, 64, 128, 256, 512 ]
+ default: 1
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: qcom,spmi-adc-rev2
+
+ then:
+ patternProperties:
+ "^.*@[0-9a-f]+$":
+ properties:
+ qcom,decimation:
+ enum: [ 256, 512, 1024 ]
+ default: 1024
+
+ qcom,hw-settle-time:
+ enum: [ 0, 100, 200, 300, 400, 500, 600, 700, 800, 900, 1, 2,
+ 4, 6, 8, 10 ]
+ default: 0
+
+ qcom,avg-samples:
+ enum: [ 1, 2, 4, 8, 16 ]
+ default: 1
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: qcom,spmi-adc5
+
+ then:
+ patternProperties:
+ "^.*@[0-9a-f]+$":
+ properties:
+ qcom,decimation:
+ enum: [ 250, 420, 840 ]
+ default: 840
+
+ qcom,hw-settle-time:
+ enum: [ 15, 100, 200, 300, 400, 500, 600, 700, 800, 900, 1, 2,
+ 4, 6, 8, 10, 16, 32, 64, 128 ]
+ default: 15
+
+ qcom,avg-samples:
+ enum: [ 1, 2, 4, 8, 16 ]
+ default: 1
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: qcom,spmi-adc7
+
+ then:
+ patternProperties:
+ "^.*@[0-9a-f]+$":
+ properties:
+ qcom,decimation:
+ enum: [ 85, 340, 1360 ]
+ default: 1360
+
+ qcom,hw-settle-time:
+ enum: [ 15, 100, 200, 300, 400, 500, 600, 700, 1000, 2000, 4000,
+ 8000, 16000, 32000, 64000, 128000 ]
+ default: 15
+
+ qcom,avg-samples:
+ enum: [ 1, 2, 4, 8, 16 ]
+ default: 1
+
+additionalProperties: false
+
+examples:
+ - |
+ spmi_bus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ /* VADC node */
+ pmic_vadc: adc@3100 {
+ compatible = "qcom,spmi-vadc";
+ reg = <0x3100>;
+ interrupts = <0x0 0x31 0x0 0x1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #io-channel-cells = <1>;
+ io-channel-ranges;
+
+ /* Channel node */
+ adc-chan@39 {
+ reg = <0x39>;
+ qcom,decimation = <512>;
+ qcom,ratiometric;
+ qcom,hw-settle-time = <200>;
+ qcom,avg-samples = <1>;
+ qcom,pre-scaling = <1 3>;
+ };
+
+ adc-chan@9 {
+ reg = <0x9>;
+ };
+
+ adc-chan@a {
+ reg = <0xa>;
+ };
+
+ adc-chan@e {
+ reg = <0xe>;
+ };
+
+ adc-chan@f {
+ reg = <0xf>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/adc/renesas,gyroadc.txt b/Documentation/devicetree/bindings/iio/adc/renesas,gyroadc.txt
new file mode 100644
index 000000000..df5b9f2ad
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/renesas,gyroadc.txt
@@ -0,0 +1,98 @@
+* Renesas R-Car GyroADC device driver
+
+The GyroADC block is a reduced SPI block with up to 8 chipselect lines,
+which supports the SPI protocol of a selected few SPI ADCs. The SPI ADCs
+are sampled by the GyroADC block in a round-robin fashion and the result
+presented in the GyroADC registers.
+
+Required properties:
+- compatible: Should be "<soc-specific>", "renesas,rcar-gyroadc".
+ The <soc-specific> should be one of:
+ renesas,r8a7791-gyroadc - for the GyroADC block present
+ in r8a7791 SoC
+ renesas,r8a7792-gyroadc - for the GyroADC with interrupt
+ block present in r8a7792 SoC
+- reg: Address and length of the register set for the device
+- clocks: References to all the clocks specified in the clock-names
+ property as specified in
+ Documentation/devicetree/bindings/clock/clock-bindings.txt.
+- clock-names: Shall contain "fck". The "fck" is the GyroADC block clock.
+- power-domains: Must contain a reference to the PM domain, if available.
+- #address-cells: Should be <1> (setting for the subnodes) for all ADCs
+ except for "fujitsu,mb88101a". Should be <0> (setting for
+ only subnode) for "fujitsu,mb88101a".
+- #size-cells: Should be <0> (setting for the subnodes)
+
+Sub-nodes:
+You must define subnode(s) which select the connected ADC type and reference
+voltage for the GyroADC channels.
+
+Required properties for subnodes:
+- compatible: Should be either of:
+ "fujitsu,mb88101a"
+ - Fujitsu MB88101A compatible mode,
+ 12bit sampling, up to 4 channels can be sampled in
+ round-robin fashion. One Fujitsu chip supplies four
+ GyroADC channels with data as it contains four ADCs
+ on the chip and thus for 4-channel operation, single
+ MB88101A is required. The Cx chipselect lines of the
+ MB88101A connect directly to two CHS lines of the
+ GyroADC, no demuxer is required. The data out line
+ of each MB88101A connects to a shared input pin of
+ the GyroADC.
+ "ti,adcs7476" or "ti,adc121" or "adi,ad7476"
+ - TI ADCS7476 / TI ADC121 / ADI AD7476 compatible mode,
+ 15bit sampling, up to 8 channels can be sampled in
+ round-robin fashion. One TI/ADI chip supplies single
+ ADC channel with data, thus for 8-channel operation,
+ 8 chips are required. A 3:8 chipselect demuxer is
+ required to connect the nCS line of the TI/ADI chips
+ to the GyroADC, while MISO line of each TI/ADI ADC
+ connects to a shared input pin of the GyroADC.
+ "maxim,max1162" or "maxim,max11100"
+ - Maxim MAX1162 / Maxim MAX11100 compatible mode,
+ 16bit sampling, up to 8 channels can be sampled in
+ round-robin fashion. One Maxim chip supplies single
+ ADC channel with data, thus for 8-channel operation,
+ 8 chips are required. A 3:8 chipselect demuxer is
+ required to connect the nCS line of the MAX chips
+ to the GyroADC, while MISO line of each Maxim ADC
+ connects to a shared input pin of the GyroADC.
+- reg: Should be the number of the analog input. Should be present
+ for all ADCs except "fujitsu,mb88101a".
+- vref-supply: Reference to the channel reference voltage regulator.
+
+Example:
+ vref_max1162: regulator-vref-max1162 {
+ compatible = "regulator-fixed";
+
+ regulator-name = "MAX1162 Vref";
+ regulator-min-microvolt = <4096000>;
+ regulator-max-microvolt = <4096000>;
+ };
+
+ adc@e6e54000 {
+ compatible = "renesas,r8a7791-gyroadc", "renesas,rcar-gyroadc";
+ reg = <0 0xe6e54000 0 64>;
+ clocks = <&mstp9_clks R8A7791_CLK_GYROADC>;
+ clock-names = "fck";
+ power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;
+
+ pinctrl-0 = <&adc_pins>;
+ pinctrl-names = "default";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ reg = <0>;
+ compatible = "maxim,max1162";
+ vref-supply = <&vref_max1162>;
+ };
+
+ adc@1 {
+ reg = <1>;
+ compatible = "maxim,max1162";
+ vref-supply = <&vref_max1162>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml b/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml
new file mode 100644
index 000000000..1bb761977
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/rockchip-saradc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip Successive Approximation Register (SAR) A/D Converter
+
+maintainers:
+ - Heiko Stuebner <heiko@sntech.de>
+
+properties:
+ compatible:
+ oneOf:
+ - const: rockchip,saradc
+ - const: rockchip,rk3066-tsadc
+ - const: rockchip,rk3399-saradc
+ - items:
+ - enum:
+ - rockchip,px30-saradc
+ - rockchip,rk3308-saradc
+ - rockchip,rk3328-saradc
+ - rockchip,rv1108-saradc
+ - const: rockchip,rk3399-saradc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: converter clock
+ - description: peripheral clock
+
+ clock-names:
+ items:
+ - const: saradc
+ - const: apb_pclk
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ const: saradc-apb
+
+ vref-supply:
+ description:
+ The regulator supply for the ADC reference voltage.
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - vref-supply
+ - "#io-channel-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/rk3288-cru.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ saradc: saradc@2006c000 {
+ compatible = "rockchip,saradc";
+ reg = <0x2006c000 0x100>;
+ interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_SARADC>, <&cru PCLK_SARADC>;
+ clock-names = "saradc", "apb_pclk";
+ resets = <&cru SRST_SARADC>;
+ reset-names = "saradc-apb";
+ vref-supply = <&vcc18>;
+ #io-channel-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml b/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml
new file mode 100644
index 000000000..5ebb0ab25
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml
@@ -0,0 +1,167 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/samsung,exynos-adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos Analog to Digital Converter (ADC)
+
+maintainers:
+ - Krzysztof Kozlowski <krzk@kernel.org>
+
+properties:
+ compatible:
+ enum:
+ - samsung,exynos-adc-v1 # Exynos5250
+ - samsung,exynos-adc-v2
+ - samsung,exynos3250-adc
+ - samsung,exynos4212-adc # Exynos4212 and Exynos4412
+ - samsung,exynos7-adc
+ - samsung,s3c2410-adc
+ - samsung,s3c2416-adc
+ - samsung,s3c2440-adc
+ - samsung,s3c2443-adc
+ - samsung,s3c6410-adc
+ - samsung,s5pv210-adc
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ description:
+ Phandle to ADC bus clock. For Exynos3250 additional clock is needed.
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ description:
+ Must contain clock names (adc, sclk) matching phandles in clocks
+ property.
+ minItems: 1
+ maxItems: 2
+
+ interrupts:
+ description:
+ ADC interrupt followed by optional touchscreen interrupt.
+ minItems: 1
+ maxItems: 2
+
+ "#io-channel-cells":
+ const: 1
+
+ io-channel-ranges: true
+
+ vdd-supply: true
+
+ samsung,syscon-phandle:
+ $ref: '/schemas/types.yaml#/definitions/phandle'
+ description:
+ Phandle to the PMU system controller node (to access the ADC_PHY
+ register on Exynos3250/4x12/5250/5420/5800).
+
+ has-touchscreen:
+ description:
+ If present, indicates that a touchscreen is connected and usable.
+ type: boolean
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - interrupts
+ - "#io-channel-cells"
+ - vdd-supply
+
+additionalProperties:
+ type: object
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - samsung,exynos-adc-v1
+ - samsung,exynos-adc-v2
+ - samsung,exynos3250-adc
+ - samsung,exynos4212-adc
+ then:
+ required:
+ - samsung,syscon-phandle
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - samsung,exynos3250-adc
+ then:
+ properties:
+ clocks:
+ minItems: 2
+ maxItems: 2
+ clock-names:
+ items:
+ - const: adc
+ - const: sclk
+ else:
+ properties:
+ clocks:
+ minItems: 1
+ maxItems: 1
+ clock-names:
+ items:
+ - const: adc
+
+ - if:
+ required:
+ - has-touchscreen
+ then:
+ properties:
+ interrupts:
+ minItems: 2
+ maxItems: 2
+
+examples:
+ - |
+ adc: adc@12d10000 {
+ compatible = "samsung,exynos-adc-v1";
+ reg = <0x12d10000 0x100>;
+ interrupts = <0 106 0>;
+ #io-channel-cells = <1>;
+ io-channel-ranges;
+
+ clocks = <&clock 303>;
+ clock-names = "adc";
+
+ vdd-supply = <&buck5_reg>;
+ samsung,syscon-phandle = <&pmu_system_controller>;
+
+ /* NTC thermistor is a hwmon device */
+ ncp15wb473 {
+ compatible = "murata,ncp15wb473";
+ pullup-uv = <1800000>;
+ pullup-ohm = <47000>;
+ pulldown-ohm = <0>;
+ io-channels = <&adc 4>;
+ };
+ };
+
+ - |
+ #include <dt-bindings/clock/exynos3250.h>
+
+ adc@126c0000 {
+ compatible = "samsung,exynos3250-adc";
+ reg = <0x126C0000 0x100>;
+ interrupts = <0 137 0>;
+ #io-channel-cells = <1>;
+ io-channel-ranges;
+
+ clocks = <&cmu CLK_TSADC>,
+ <&cmu CLK_SCLK_TSADC>;
+ clock-names = "adc", "sclk";
+
+ vdd-supply = <&buck5_reg>;
+ samsung,syscon-phandle = <&pmu_system_controller>;
+ };
diff --git a/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.yaml b/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.yaml
new file mode 100644
index 000000000..a390343d0
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.yaml
@@ -0,0 +1,37 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/sigma-delta-modulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Device-Tree bindings for sigma delta modulator
+
+maintainers:
+ - Arnaud Pouliquen <arnaud.pouliquen@st.com>
+
+properties:
+ compatible:
+ description: |
+ "sd-modulator" can be used as a generic SD modulator,
+ if the modulator is not specified in the compatible list.
+ enum:
+ - sd-modulator
+ - ads1201
+
+ '#io-channel-cells':
+ const: 0
+
+required:
+ - compatible
+ - '#io-channel-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ ads1202: adc {
+ compatible = "sd-modulator";
+ #io-channel-cells = <0>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/sprd,sc2720-adc.yaml b/Documentation/devicetree/bindings/iio/adc/sprd,sc2720-adc.yaml
new file mode 100644
index 000000000..caa3ee0b4
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/sprd,sc2720-adc.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/sprd,sc2720-adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Spreadtrum SC27XX series PMICs ADC binding
+
+maintainers:
+ - Baolin Wang <baolin.wang7@gmail.com>
+
+description:
+ Supports the ADC found on these PMICs.
+
+properties:
+ compatible:
+ enum:
+ - sprd,sc2720-adc
+ - sprd,sc2721-adc
+ - sprd,sc2723-adc
+ - sprd,sc2730-adc
+ - sprd,sc2731-adc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ "#io-channel-cells":
+ const: 1
+
+ hwlocks:
+ maxItems: 1
+
+ nvmem-cells:
+ maxItems: 2
+
+ nvmem-cell-names:
+ items:
+ - const: big_scale_calib
+ - const: small_scale_calib
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - "#io-channel-cells"
+ - hwlocks
+ - nvmem-cells
+ - nvmem-cell-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ pmic {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ adc@480 {
+ compatible = "sprd,sc2731-adc";
+ reg = <0x480>;
+ interrupt-parent = <&sc2731_pmic>;
+ interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+ #io-channel-cells = <1>;
+ hwlocks = <&hwlock 4>;
+ nvmem-cells = <&adc_big_scale>, <&adc_small_scale>;
+ nvmem-cell-names = "big_scale_calib", "small_scale_calib";
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.yaml b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.yaml
new file mode 100644
index 000000000..28417b31b
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.yaml
@@ -0,0 +1,453 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/iio/adc/st,stm32-adc.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: STMicroelectronics STM32 ADC bindings
+
+description: |
+ STM32 ADC is a successive approximation analog-to-digital converter.
+ It has several multiplexed input channels. Conversions can be performed
+ in single, continuous, scan or discontinuous mode. Result of the ADC is
+ stored in a left-aligned or right-aligned 32-bit data register.
+ Conversions can be launched in software or using hardware triggers.
+
+ The analog watchdog feature allows the application to detect if the input
+ voltage goes beyond the user-defined, higher or lower thresholds.
+
+ Each STM32 ADC block can have up to 3 ADC instances.
+
+maintainers:
+ - Fabrice Gasnier <fabrice.gasnier@st.com>
+
+properties:
+ compatible:
+ enum:
+ - st,stm32f4-adc-core
+ - st,stm32h7-adc-core
+ - st,stm32mp1-adc-core
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ description: |
+ One or more interrupts for ADC block, depending on part used:
+ - stm32f4 and stm32h7 share a common ADC interrupt line.
+ - stm32mp1 has two separate interrupt lines, one for each ADC within
+ ADC block.
+ minItems: 1
+ maxItems: 2
+
+ clocks:
+ description: |
+ Core can use up to two clocks, depending on part used:
+ - "adc" clock: for the analog circuitry, common to all ADCs.
+ It's required on stm32f4.
+ It's optional on stm32h7 and stm32mp1.
+ - "bus" clock: for registers access, common to all ADCs.
+ It's not present on stm32f4.
+ It's required on stm32h7 and stm32mp1.
+
+ clock-names: true
+
+ st,max-clk-rate-hz:
+ description:
+ Allow to specify desired max clock rate used by analog circuitry.
+
+ vdda-supply:
+ description: Phandle to the vdda input analog voltage.
+
+ vref-supply:
+ description: Phandle to the vref input analog reference voltage.
+
+ booster-supply:
+ description:
+ Phandle to the embedded booster regulator that can be used to supply ADC
+ analog input switches on stm32h7 and stm32mp1.
+
+ vdd-supply:
+ description:
+ Phandle to the vdd input voltage. It can be used to supply ADC analog
+ input switches on stm32mp1.
+
+ st,syscfg:
+ description:
+ Phandle to system configuration controller. It can be used to control the
+ analog circuitry on stm32mp1.
+ $ref: "/schemas/types.yaml#/definitions/phandle-array"
+
+ interrupt-controller: true
+
+ '#interrupt-cells':
+ const: 1
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: st,stm32f4-adc-core
+
+ then:
+ properties:
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: adc
+
+ interrupts:
+ items:
+ - description: interrupt line common for all ADCs
+
+ st,max-clk-rate-hz:
+ minimum: 600000
+ maximum: 36000000
+ default: 36000000
+
+ booster-supply: false
+
+ vdd-supply: false
+
+ st,syscfg: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: st,stm32h7-adc-core
+
+ then:
+ properties:
+ clocks:
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: bus
+ - const: adc
+ minItems: 1
+ maxItems: 2
+
+ interrupts:
+ items:
+ - description: interrupt line common for all ADCs
+
+ st,max-clk-rate-hz:
+ minimum: 120000
+ maximum: 36000000
+ default: 36000000
+
+ vdd-supply: false
+
+ st,syscfg: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: st,stm32mp1-adc-core
+
+ then:
+ properties:
+ clocks:
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: bus
+ - const: adc
+ minItems: 1
+ maxItems: 2
+
+ interrupts:
+ items:
+ - description: interrupt line for ADC1
+ - description: interrupt line for ADC2
+
+ st,max-clk-rate-hz:
+ minimum: 120000
+ maximum: 36000000
+ default: 36000000
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - vdda-supply
+ - vref-supply
+ - interrupt-controller
+ - '#interrupt-cells'
+ - '#address-cells'
+ - '#size-cells'
+
+patternProperties:
+ "^adc@[0-9]+$":
+ type: object
+ description:
+ An ADC block node should contain at least one subnode, representing an
+ ADC instance available on the machine.
+
+ properties:
+ compatible:
+ enum:
+ - st,stm32f4-adc
+ - st,stm32h7-adc
+ - st,stm32mp1-adc
+
+ reg:
+ description: |
+ Offset of ADC instance in ADC block. Valid values are:
+ - 0x0: ADC1
+ - 0x100: ADC2
+ - 0x200: ADC3 (stm32f4 only)
+ maxItems: 1
+
+ '#io-channel-cells':
+ const: 1
+
+ interrupts:
+ description: |
+ IRQ Line for the ADC instance. Valid values are:
+ - 0 for adc@0
+ - 1 for adc@100
+ - 2 for adc@200 (stm32f4 only)
+ maxItems: 1
+
+ clocks:
+ description:
+ Input clock private to this ADC instance. It's required only on
+ stm32f4, that has per instance clock input for registers access.
+ maxItems: 1
+
+ dmas:
+ description: RX DMA Channel
+ maxItems: 1
+
+ dma-names:
+ const: rx
+
+ assigned-resolution-bits:
+ description: |
+ Resolution (bits) to use for conversions:
+ - can be 6, 8, 10 or 12 on stm32f4
+ - can be 8, 10, 12, 14 or 16 on stm32h7 and stm32mp1
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ st,adc-channels:
+ description: |
+ List of single-ended channels muxed for this ADC. It can have up to:
+ - 16 channels, numbered from 0 to 15 (for in0..in15) on stm32f4
+ - 20 channels, numbered from 0 to 19 (for in0..in19) on stm32h7 and
+ stm32mp1.
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+
+ st,adc-diff-channels:
+ description: |
+ List of differential channels muxed for this ADC. Some channels can
+ be configured as differential instead of single-ended on stm32h7 and
+ on stm32mp1. Positive and negative inputs pairs are listed:
+ <vinp vinn>, <vinp vinn>,... vinp and vinn are numbered from 0 to 19.
+
+ Note: At least one of "st,adc-channels" or "st,adc-diff-channels" is
+ required. Both properties can be used together. Some channels can be
+ used as single-ended and some other ones as differential (mixed). But
+ channels can't be configured both as single-ended and differential.
+ $ref: /schemas/types.yaml#/definitions/uint32-matrix
+ items:
+ items:
+ - description: |
+ "vinp" indicates positive input number
+ minimum: 0
+ maximum: 19
+ - description: |
+ "vinn" indicates negative input number
+ minimum: 0
+ maximum: 19
+
+ st,min-sample-time-nsecs:
+ description:
+ Minimum sampling time in nanoseconds. Depending on hardware (board)
+ e.g. high/low analog input source impedance, fine tune of ADC
+ sampling time may be recommended. This can be either one value or an
+ array that matches "st,adc-channels" and/or "st,adc-diff-channels"
+ list, to set sample time resp. for all channels, or independently for
+ each channel.
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+
+ allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: st,stm32f4-adc
+
+ then:
+ properties:
+ reg:
+ enum:
+ - 0x0
+ - 0x100
+ - 0x200
+
+ interrupts:
+ minimum: 0
+ maximum: 2
+
+ assigned-resolution-bits:
+ enum: [6, 8, 10, 12]
+ default: 12
+
+ st,adc-channels:
+ minItems: 1
+ maxItems: 16
+ items:
+ minimum: 0
+ maximum: 15
+
+ st,adc-diff-channels: false
+
+ st,min-sample-time-nsecs:
+ minItems: 1
+ maxItems: 16
+ items:
+ minimum: 80
+
+ required:
+ - clocks
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - st,stm32h7-adc
+ - st,stm32mp1-adc
+
+ then:
+ properties:
+ reg:
+ enum:
+ - 0x0
+ - 0x100
+
+ interrupts:
+ minimum: 0
+ maximum: 1
+
+ assigned-resolution-bits:
+ enum: [8, 10, 12, 14, 16]
+ default: 16
+
+ st,adc-channels:
+ minItems: 1
+ maxItems: 20
+ items:
+ minimum: 0
+ maximum: 19
+
+ st,min-sample-time-nsecs:
+ minItems: 1
+ maxItems: 20
+ items:
+ minimum: 40
+
+ additionalProperties: false
+
+ anyOf:
+ - required:
+ - st,adc-channels
+ - required:
+ - st,adc-diff-channels
+
+ required:
+ - compatible
+ - reg
+ - interrupts
+ - '#io-channel-cells'
+
+examples:
+ - |
+ // Example 1: with stm32f429, ADC1, single-ended channel 8
+ adc123: adc@40012000 {
+ compatible = "st,stm32f4-adc-core";
+ reg = <0x40012000 0x400>;
+ interrupts = <18>;
+ clocks = <&rcc 0 168>;
+ clock-names = "adc";
+ st,max-clk-rate-hz = <36000000>;
+ vdda-supply = <&vdda>;
+ vref-supply = <&vref>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ adc@0 {
+ compatible = "st,stm32f4-adc";
+ #io-channel-cells = <1>;
+ reg = <0x0>;
+ clocks = <&rcc 0 168>;
+ interrupt-parent = <&adc123>;
+ interrupts = <0>;
+ st,adc-channels = <8>;
+ dmas = <&dma2 0 0 0x400 0x0>;
+ dma-names = "rx";
+ assigned-resolution-bits = <8>;
+ };
+ // ...
+ // other adc child nodes follow...
+ };
+
+ - |
+ // Example 2: with stm32mp157c to setup ADC1 with:
+ // - channels 0 & 1 as single-ended
+ // - channels 2 & 3 as differential (with resp. 6 & 7 negative inputs)
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/stm32mp1-clks.h>
+ adc12: adc@48003000 {
+ compatible = "st,stm32mp1-adc-core";
+ reg = <0x48003000 0x400>;
+ interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&rcc ADC12>, <&rcc ADC12_K>;
+ clock-names = "bus", "adc";
+ booster-supply = <&booster>;
+ vdd-supply = <&vdd>;
+ vdda-supply = <&vdda>;
+ vref-supply = <&vref>;
+ st,syscfg = <&syscfg>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ adc@0 {
+ compatible = "st,stm32mp1-adc";
+ #io-channel-cells = <1>;
+ reg = <0x0>;
+ interrupt-parent = <&adc12>;
+ interrupts = <0>;
+ st,adc-channels = <0 1>;
+ st,adc-diff-channels = <2 6>, <3 7>;
+ st,min-sample-time-nsecs = <5000>;
+ dmas = <&dmamux1 9 0x400 0x05>;
+ dma-names = "rx";
+ };
+ // ...
+ // other adc child node follow...
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.yaml b/Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.yaml
new file mode 100644
index 000000000..d61bc011e
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.yaml
@@ -0,0 +1,329 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/st,stm32-dfsdm-adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STM32 DFSDM ADC device driver
+
+maintainers:
+ - Fabrice Gasnier <fabrice.gasnier@st.com>
+ - Olivier Moysan <olivier.moysan@st.com>
+
+description: |
+ STM32 DFSDM ADC is a sigma delta analog-to-digital converter dedicated to
+ interface external sigma delta modulators to STM32 micro controllers.
+ It is mainly targeted for:
+ - Sigma delta modulators (motor control, metering...)
+ - PDM microphones (audio digital microphone)
+
+ It features up to 8 serial digital interfaces (SPI or Manchester) and
+ up to 4 filters on stm32h7 or 6 filters on stm32mp1.
+
+ Each child node matches with a filter instance.
+
+properties:
+ compatible:
+ enum:
+ - st,stm32h7-dfsdm
+ - st,stm32mp1-dfsdm
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description:
+ Internal clock used for DFSDM digital processing and control blocks.
+ dfsdm clock can also feed CLKOUT, when CLKOUT is used.
+ - description: audio clock can be used as an alternate to feed CLKOUT.
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: dfsdm
+ - const: audio
+ minItems: 1
+ maxItems: 2
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ spi-max-frequency:
+ description:
+ SPI clock OUT frequency (Hz). Requested only for SPI master mode.
+ This clock must be set according to the "clock" property.
+ Frequency must be a multiple of the rcc clock frequency.
+ If not, SPI CLKOUT frequency will not be accurate.
+ maximum: 20000000
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - "#address-cells"
+ - "#size-cells"
+
+additionalProperties: false
+
+patternProperties:
+ "^filter@[0-9]+$":
+ type: object
+ description: child node
+
+ properties:
+ compatible:
+ enum:
+ - st,stm32-dfsdm-adc
+ - st,stm32-dfsdm-dmic
+
+ reg:
+ description: Specifies the DFSDM filter instance used.
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ st,adc-channels:
+ description: |
+ List of single-ended channels muxed for this ADC.
+ On stm32h7 and stm32mp1:
+ - For st,stm32-dfsdm-adc: up to 8 channels numbered from 0 to 7.
+ - For st,stm32-dfsdm-dmic: 1 channel numbered from 0 to 7.
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ items:
+ minimum: 0
+ maximum: 7
+
+ st,adc-channel-names:
+ description: List of single-ended channel names.
+ $ref: /schemas/types.yaml#/definitions/string-array
+
+ st,filter-order:
+ description: |
+ SinC filter order from 0 to 5.
+ - 0: FastSinC
+ - [1-5]: order 1 to 5.
+ For audio purpose it is recommended to use order 3 to 5.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ items:
+ minimum: 0
+ maximum: 5
+
+ "#io-channel-cells":
+ const: 1
+
+ st,adc-channel-types:
+ description: |
+ Single-ended channel input type.
+ - "SPI_R": SPI with data on rising edge (default)
+ - "SPI_F": SPI with data on falling edge
+ - "MANCH_R": manchester codec, rising edge = logic 0, falling edge = logic 1
+ - "MANCH_F": manchester codec, rising edge = logic 1, falling edge = logic 0
+ items:
+ enum: [ SPI_R, SPI_F, MANCH_R, MANCH_F ]
+ $ref: /schemas/types.yaml#/definitions/non-unique-string-array
+
+ st,adc-channel-clk-src:
+ description: |
+ Conversion clock source.
+ - "CLKIN": external SPI clock (CLKIN x)
+ - "CLKOUT": internal SPI clock (CLKOUT) (default)
+ - "CLKOUT_F": internal SPI clock divided by 2 (falling edge).
+ - "CLKOUT_R": internal SPI clock divided by 2 (rising edge).
+ items:
+ enum: [ CLKIN, CLKOUT, CLKOUT_F, CLKOUT_R ]
+ $ref: /schemas/types.yaml#/definitions/non-unique-string-array
+
+ st,adc-alt-channel:
+ description:
+ Must be defined if two sigma delta modulators are
+ connected on same SPI input.
+ If not set, channel n is connected to SPI input n.
+ If set, channel n is connected to SPI input n + 1.
+ type: boolean
+
+ st,filter0-sync:
+ description:
+ Set to 1 to synchronize with DFSDM filter instance 0.
+ Used for multi microphones synchronization.
+ type: boolean
+
+ dmas:
+ maxItems: 1
+
+ dma-names:
+ items:
+ - const: rx
+
+ required:
+ - compatible
+ - reg
+ - interrupts
+ - st,adc-channels
+ - st,adc-channel-names
+ - st,filter-order
+ - "#io-channel-cells"
+
+ allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: st,stm32-dfsdm-adc
+
+ - then:
+ properties:
+ st,adc-channels:
+ minItems: 1
+ maxItems: 8
+
+ st,adc-channel-names:
+ minItems: 1
+ maxItems: 8
+
+ st,adc-channel-types:
+ minItems: 1
+ maxItems: 8
+
+ st,adc-channel-clk-src:
+ minItems: 1
+ maxItems: 8
+
+ io-channels:
+ description:
+ From common IIO binding. Used to pipe external sigma delta
+ modulator or internal ADC output to DFSDM channel.
+ This is not required for "st,stm32-dfsdm-pdm" compatibility as
+ PDM microphone is binded in Audio DT node.
+
+ required:
+ - io-channels
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: st,stm32-dfsdm-dmic
+
+ - then:
+ properties:
+ st,adc-channels:
+ maxItems: 1
+
+ st,adc-channel-names:
+ maxItems: 1
+
+ st,adc-channel-types:
+ maxItems: 1
+
+ st,adc-channel-clk-src:
+ maxItems: 1
+
+ required:
+ - dmas
+ - dma-names
+
+ patternProperties:
+ "^dfsdm-dai+$":
+ type: object
+ description: child node
+
+ properties:
+ "#sound-dai-cells":
+ const: 0
+
+ io-channels:
+ description:
+ From common IIO binding. Used to pipe external sigma delta
+ modulator or internal ADC output to DFSDM channel.
+
+ required:
+ - "#sound-dai-cells"
+ - io-channels
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: st,stm32h7-dfsdm
+
+ - then:
+ patternProperties:
+ "^filter@[0-9]+$":
+ properties:
+ reg:
+ items:
+ minimum: 0
+ maximum: 3
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: st,stm32mp1-dfsdm
+
+ - then:
+ patternProperties:
+ "^filter@[0-9]+$":
+ properties:
+ reg:
+ items:
+ minimum: 0
+ maximum: 5
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/stm32mp1-clks.h>
+ dfsdm: dfsdm@4400d000 {
+ compatible = "st,stm32mp1-dfsdm";
+ reg = <0x4400d000 0x800>;
+ clocks = <&rcc DFSDM_K>, <&rcc ADFSDM_K>;
+ clock-names = "dfsdm", "audio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ dfsdm0: filter@0 {
+ compatible = "st,stm32-dfsdm-dmic";
+ reg = <0>;
+ interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dmamux1 101 0x400 0x01>;
+ dma-names = "rx";
+ #io-channel-cells = <1>;
+ st,adc-channels = <1>;
+ st,adc-channel-names = "dmic0";
+ st,adc-channel-types = "SPI_R";
+ st,adc-channel-clk-src = "CLKOUT";
+ st,filter-order = <5>;
+
+ asoc_pdm0: dfsdm-dai {
+ compatible = "st,stm32h7-dfsdm-dai";
+ #sound-dai-cells = <0>;
+ io-channels = <&dfsdm0 0>;
+ };
+ };
+
+ dfsdm_pdm1: filter@1 {
+ compatible = "st,stm32-dfsdm-adc";
+ reg = <1>;
+ interrupts = <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dmamux1 102 0x400 0x01>;
+ dma-names = "rx";
+ #io-channel-cells = <1>;
+ st,adc-channels = <2 3>;
+ st,adc-channel-names = "in2", "in3";
+ st,adc-channel-types = "SPI_R", "SPI_R";
+ st,adc-channel-clk-src = "CLKOUT_F", "CLKOUT_F";
+ io-channels = <&sd_adc2 &sd_adc3>;
+ st,filter-order = <1>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/st,stmpe-adc.yaml b/Documentation/devicetree/bindings/iio/adc/st,stmpe-adc.yaml
new file mode 100644
index 000000000..9049c6991
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/st,stmpe-adc.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/st,stmpe-adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ADC on an STMPE multifunction device.
+
+maintainers:
+ - Stefan Agner <stefan@agner.ch>
+
+description:
+ This ADC forms part of an ST microelectronics STMPE multifunction device .
+ The ADC is shared with the STMPE touchscreen. As a result some ADC related
+ settings are specified in the parent node.
+ The node name myst be stmpe_adc and should be a child node of the stmpe node
+ to which it belongs.
+
+properties:
+ compatible:
+ const: st,stmpe-adc
+
+ st,norequest-mask:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Bitmask specifying which ADC channels should _not_ be
+ requestable due to different usage (e.g. touch).
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ stmpe {
+ stmpe_adc {
+ compatible = "st,stmpe-adc";
+ st,norequest-mask = <0x0F>; /* dont use ADC CH3-0 */
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,adc0832.yaml b/Documentation/devicetree/bindings/iio/adc/ti,adc0832.yaml
new file mode 100644
index 000000000..f5a923cc8
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti,adc0832.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/ti,adc0832.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments ADC0832 and similar ADCs
+
+maintainers:
+ - Akinobu Mita <akinobu.mita@gmail.com>
+
+description: |
+ 8 bit ADCs with 1, 2, 4 or 8 inputs for single ended or differential
+ conversion.
+
+properties:
+ compatible:
+ enum:
+ - ti,adc0831
+ - ti,adc0832
+ - ti,adc0834
+ - ti,adc0838
+
+ reg:
+ maxItems: 1
+
+ spi-max-frequency: true
+
+ vref-supply:
+ description: External reference, needed to establish input scaling
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - vref-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "ti,adc0832";
+ reg = <0>;
+ vref-supply = <&vdd_supply>;
+ spi-max-frequency = <200000>;
+ #io-channel-cells = <1>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,adc108s102.yaml b/Documentation/devicetree/bindings/iio/adc/ti,adc108s102.yaml
new file mode 100644
index 000000000..54955f03d
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti,adc108s102.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/ti,adc108s102.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments ADC108S102 and ADC128S102
+
+maintainers:
+ - Bogdan Pricop <bogdan.pricop@emutex.com>
+
+description: |
+ Family of 8 channel, 10/12 bit, SPI, single ended ADCs.
+
+properties:
+ compatible:
+ const:
+ ti,adc108s102
+
+ reg: true
+ vref-supply: true
+ spi-max-frequency: true
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - vref-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells= <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "ti,adc108s102";
+ reg = <0>;
+ vref-supply = <&vdd_supply>;
+ spi-max-frequency = <1000000>;
+ #io-channel-cells = <1>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,adc12138.yaml b/Documentation/devicetree/bindings/iio/adc/ti,adc12138.yaml
new file mode 100644
index 000000000..ec3b2edf1
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti,adc12138.yaml
@@ -0,0 +1,86 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/ti,adc12138.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments ADC12138 and similar self-calibrating ADCs
+
+maintainers:
+ - Akinobu Mita <akinobu.mita@gmail.com>
+
+description: |
+ 13 bit ADCs with 1, 2 or 8 inputs and self calibrating circuitry to
+ correct for linearity, zero and full scale errors.
+
+properties:
+ compatible:
+ enum:
+ - ti,adc12130
+ - ti,adc12132
+ - ti,adc12138
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+ description: End of Conversion (EOC) interrupt
+
+ clocks:
+ maxItems: 1
+ description: Conversion clock input.
+
+ spi-max-frequency: true
+
+ vref-p-supply:
+ description: The regulator supply for positive analog voltage reference
+
+ vref-n-supply:
+ description: |
+ 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:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [ 6, 10, 18, 34 ]
+ description: |
+ The number of conversion clock periods for the S/H's acquisition time.
+ For high source impedances, this value can be increased to 18 or 34.
+ For less ADC accuracy and/or slower CCLK frequencies this value may be
+ decreased to 6. See section 6.0 INPUT SOURCE RESISTANCE in the
+ datasheet for details.
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - vref-p-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "ti,adc12138";
+ reg = <0>;
+ interrupts = <28 IRQ_TYPE_EDGE_RISING>;
+ interrupt-parent = <&gpio1>;
+ clocks = <&cclk>;
+ vref-p-supply = <&ldo4_reg>;
+ spi-max-frequency = <5000000>;
+ ti,acquisition-time = <6>;
+ #io-channel-cells = <1>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,adc128s052.yaml b/Documentation/devicetree/bindings/iio/adc/ti,adc128s052.yaml
new file mode 100644
index 000000000..d54a0183f
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti,adc128s052.yaml
@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/ti,adc128s052.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments ADC128S052 and similar ADCs
+
+maintainers:
+ - Angelo Compagnucci <angelo.compagnucci@gmail.com>
+
+description: |
+ Family of 12 bit SPI ADCs with 2 to 8 channels with a range of different
+ target sample rates.
+
+properties:
+ compatible:
+ enum:
+ - ti,adc122s021
+ - ti,adc122s051
+ - ti,adc122s101
+ - ti,adc124s021
+ - ti,adc124s051
+ - ti,adc124s101
+ - ti,adc128s052
+
+ reg:
+ maxItems: 1
+
+ spi-max-frequency: true
+
+ vref-supply: true
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - vref-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "ti,adc128s052";
+ reg = <0>;
+ vref-supply = <&vdd_supply>;
+ spi-max-frequency = <1000000>;
+ #io-channel-cells = <1>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,adc161s626.yaml b/Documentation/devicetree/bindings/iio/adc/ti,adc161s626.yaml
new file mode 100644
index 000000000..3f4f334d6
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti,adc161s626.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/ti,adc161s626.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments ADC141S626 and ADC161S626 ADCs
+
+maintainers:
+ - Matt Ranostay <matt.ranostay@konsulko.com>
+
+description: |
+ Single channel 14/16bit differential ADCs
+
+properties:
+ compatible:
+ enum:
+ - ti,adc141s626
+ - ti,adc161s626
+
+ reg:
+ maxItems: 1
+
+ spi-max-frequency: true
+
+ vdda-supply: true
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "ti,adc161s626";
+ vdda-supply = <&vdda_fixed>;
+ reg = <0>;
+ spi-max-frequency = <4300000>;
+ #io-channel-cells = <1>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,ads1015.yaml b/Documentation/devicetree/bindings/iio/adc/ti,ads1015.yaml
new file mode 100644
index 000000000..2c2d01bbc
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti,ads1015.yaml
@@ -0,0 +1,112 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/ti,ads1015.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI ADS1015 4 channel I2C analog to digital converter
+
+maintainers:
+ - Daniel Baluta <daniel.baluta@nxp.com>
+
+description: |
+ Datasheet at: https://www.ti.com/lit/gpn/ads1015
+ Supports both single ended and differential channels.
+
+properties:
+ compatible:
+ const: ti,ads1015
+
+ reg:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+
+additionalProperties: false
+
+patternProperties:
+ "^channel@[0-7]+$":
+ type: object
+ description:
+ Child nodes needed for each channel that the platform uses.
+
+ properties:
+ reg:
+ description: |
+ 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.
+ items:
+ - minimum: 0
+ maximum: 7
+
+ ti,gain:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 5
+ description: |
+ 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
+
+ ti,datarate:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 6
+ description: |
+ Data acquisition rate in samples per second
+ 0: 128
+ 1: 250
+ 2: 490
+ 3: 920
+ 4: 1600 (default)
+ 5: 2400
+ 6: 3300
+
+ required:
+ - reg
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@49 {
+ compatible = "ti,ads1015";
+ reg = <0x49>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ channel@0 {
+ reg = <0>;
+ };
+ channel@4 {
+ reg = <4>;
+ ti,gain = <3>;
+ ti,datarate = <5>;
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,ads7950.yaml b/Documentation/devicetree/bindings/iio/adc/ti,ads7950.yaml
new file mode 100644
index 000000000..5ab5027be
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti,ads7950.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/ti,ads7950.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments ADS7950 and similar ADCs
+
+maintainers:
+ - David Lechner <david@lechnology.com>
+
+description: |
+ Family of 4-16 channel, 8-12 bit ADCs with SPI interface.
+
+properties:
+ compatible:
+ enum:
+ - ti,ads7950
+ - ti,ads7951
+ - ti,ads7952
+ - ti,ads7953
+ - ti,ads7954
+ - ti,ads7955
+ - ti,ads7956
+ - ti,ads7957
+ - ti,ads7958
+ - ti,ads7959
+ - ti,ads7960
+ - ti,ads7961
+
+ reg:
+ maxItems: 1
+
+ spi-max-frequency:
+ maximum: 20000000
+
+ vref-supply:
+ description: Supplies the 2.5V or 5V reference voltage
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - vref-supply
+ - "#io-channel-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "ti,ads7957";
+ reg = <0>;
+ vref-supply = <&refin_supply>;
+ spi-max-frequency = <10000000>;
+ #io-channel-cells = <1>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,ads8344.yaml b/Documentation/devicetree/bindings/iio/adc/ti,ads8344.yaml
new file mode 100644
index 000000000..b8c398187
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti,ads8344.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/ti,ads8344.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments ADS8344 ADC
+
+maintainers:
+ - Gregory Clement <gregory.clement@bootlin.com>
+
+description: |
+ 16bit 8-channel ADC with single ended inputs.
+
+properties:
+ compatible:
+ const: ti,ads8344
+
+ reg:
+ maxItems: 1
+
+ spi-max-frequency: true
+
+ vref-supply:
+ description: Supply the 2.5V or 5V reference voltage
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - vref-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "ti,ads8344";
+ reg = <0>;
+ vref-supply = <&refin_supply>;
+ spi-max-frequency = <10000000>;
+ #io-channel-cells = <1>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,ads8688.yaml b/Documentation/devicetree/bindings/iio/adc/ti,ads8688.yaml
new file mode 100644
index 000000000..a0af4b248
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti,ads8688.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/ti,ads8688.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments' ADS8684 and ADS8688 ADC chip
+
+maintainers:
+ - Sean Nyekjaer <sean@geanix.com>
+
+description: |
+ SPI 16bit ADCs with 4/8 channels.
+
+properties:
+ compatible:
+ enum:
+ - ti,ads8684
+ - ti,ads8688
+
+ reg:
+ maxItems: 1
+
+ vref-supply:
+ description: Optional external reference. If not supplied, assume
+ REFSEL input tied low to enable the internal reference.
+
+ spi-max-frequency: true
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "ti,ads8688";
+ reg = <0>;
+ vref-supply = <&vdd_supply>;
+ spi-max-frequency = <1000000>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,tlc4541.yaml b/Documentation/devicetree/bindings/iio/adc/ti,tlc4541.yaml
new file mode 100644
index 000000000..6c2539b3d
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti,tlc4541.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/ti,tlc4541.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments TLC4541 and similar ADCs
+
+maintainers:
+ - Phil Reid <preid@electromag.com.au>
+
+description: |
+ 14/16bit single channel ADC with SPI interface.
+
+properties:
+ compatible:
+ enum:
+ - ti,tlc3541
+ - ti,tlc4541
+
+ reg:
+ maxItems: 1
+
+ spi-max-frequency: true
+
+ vref-supply: true
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - vref-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "ti,tlc4541";
+ reg = <0>;
+ vref-supply = <&vdd_supply>;
+ spi-max-frequency = <200000>;
+ #io-channel-cells = <1>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,twl4030-madc.yaml b/Documentation/devicetree/bindings/iio/adc/ti,twl4030-madc.yaml
new file mode 100644
index 000000000..6781ad2f0
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti,twl4030-madc.yaml
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/ti,twl4030-madc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MADC subsystem in the TWL4030 power module
+
+maintainers:
+ - Sebastian Reichel <sre@kernel.org>
+
+description:
+ The MADC subsystem in the TWL4030 consists of a 10-bit ADC
+ combined with a 16-input analog multiplexer.
+
+properties:
+ compatible:
+ const: ti,twl4030-madc
+
+ interrupts:
+ maxItems: 1
+
+ ti,system-uses-second-madc-irq:
+ type: boolean
+ description:
+ Set if the second madc irq register should be used, which is intended
+ to be used by Co-Processors (e.g. a modem).
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - interrupts
+ - "#io-channel-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ twl {
+ madc {
+ compatible = "ti,twl4030-madc";
+ interrupts = <3>;
+ #io-channel-cells = <1>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/ti-adc084s021.txt b/Documentation/devicetree/bindings/iio/adc/ti-adc084s021.txt
new file mode 100644
index 000000000..4259e5062
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti-adc084s021.txt
@@ -0,0 +1,19 @@
+* Texas Instruments' ADC084S021
+
+Required properties:
+ - compatible : Must be "ti,adc084s021"
+ - reg : SPI chip select number for the device
+ - vref-supply : The regulator supply for ADC reference voltage
+ - spi-cpol : Per spi-bus bindings
+ - spi-cpha : Per spi-bus bindings
+ - spi-max-frequency : Per spi-bus bindings
+
+Example:
+adc@0 {
+ compatible = "ti,adc084s021";
+ reg = <0>;
+ vref-supply = <&adc_vref>;
+ spi-cpol;
+ spi-cpha;
+ spi-max-frequency = <16000000>;
+};
diff --git a/Documentation/devicetree/bindings/iio/adc/ti-ads124s08.txt b/Documentation/devicetree/bindings/iio/adc/ti-ads124s08.txt
new file mode 100644
index 000000000..ecf807bb3
--- /dev/null
+++ b/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>;
+};
diff --git a/Documentation/devicetree/bindings/iio/adc/xilinx-xadc.txt b/Documentation/devicetree/bindings/iio/adc/xilinx-xadc.txt
new file mode 100644
index 000000000..e0e0755ca
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/xilinx-xadc.txt
@@ -0,0 +1,112 @@
+Xilinx XADC device driver
+
+This binding document describes the bindings for both of them since the
+bindings are very similar. The Xilinx XADC is a ADC that can be found in the
+series 7 FPGAs from Xilinx. The XADC has a DRP interface for communication.
+Currently two different frontends for the DRP interface exist. One that is only
+available on the ZYNQ family as a hardmacro in the SoC portion of the ZYNQ. The
+other one is available on all series 7 platforms and is a softmacro with a AXI
+interface. This binding document describes the bindings for both of them since
+the bindings are very similar.
+
+Required properties:
+ - compatible: Should be one of
+ * "xlnx,zynq-xadc-1.00.a": When using the ZYNQ device
+ configuration interface to interface to the XADC hardmacro.
+ * "xlnx,axi-xadc-1.00.a": When using the axi-xadc pcore to
+ interface to the XADC hardmacro.
+ - reg: Address and length of the register set for the device
+ - interrupts: Interrupt for the XADC control interface.
+ - clocks: When using the ZYNQ this must be the ZYNQ PCAP clock,
+ when using the AXI-XADC pcore this must be the clock that provides the
+ clock to the AXI bus interface of the core.
+
+Optional properties:
+ - xlnx,external-mux:
+ * "none": No external multiplexer is used, this is the default
+ if the property is omitted.
+ * "single": External multiplexer mode is used with one
+ multiplexer.
+ * "dual": External multiplexer mode is used with two
+ multiplexers for simultaneous sampling.
+ - xlnx,external-mux-channel: Configures which pair of pins is used to
+ sample data in external mux mode.
+ Valid values for single external multiplexer mode are:
+ 0: VP/VN
+ 1: VAUXP[0]/VAUXN[0]
+ 2: VAUXP[1]/VAUXN[1]
+ ...
+ 16: VAUXP[15]/VAUXN[15]
+ Valid values for dual external multiplexer mode are:
+ 1: VAUXP[0]/VAUXN[0] - VAUXP[8]/VAUXN[8]
+ 2: VAUXP[1]/VAUXN[1] - VAUXP[9]/VAUXN[9]
+ ...
+ 8: VAUXP[7]/VAUXN[7] - VAUXP[15]/VAUXN[15]
+
+ This property needs to be present if the device is configured for
+ external multiplexer mode (either single or dual). If the device is
+ not using external multiplexer mode the property is ignored.
+ - xnlx,channels: List of external channels that are connected to the ADC
+ Required properties:
+ * #address-cells: Should be 1.
+ * #size-cells: Should be 0.
+
+ The child nodes of this node represent the external channels which are
+ connected to the ADC. If the property is no present no external
+ channels will be assumed to be connected.
+
+ Each child node represents one channel and has the following
+ properties:
+ Required properties:
+ * reg: Pair of pins the channel is connected to.
+ 0: VP/VN
+ 1: VAUXP[0]/VAUXN[0]
+ 2: VAUXP[1]/VAUXN[1]
+ ...
+ 16: VAUXP[15]/VAUXN[15]
+ Note each channel number should only be used at most
+ once.
+ Optional properties:
+ * xlnx,bipolar: If set the channel is used in bipolar
+ mode.
+
+
+Examples:
+ xadc@f8007100 {
+ compatible = "xlnx,zynq-xadc-1.00.a";
+ reg = <0xf8007100 0x20>;
+ interrupts = <0 7 4>;
+ interrupt-parent = <&gic>;
+ clocks = <&pcap_clk>;
+
+ xlnx,channels {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ channel@0 {
+ reg = <0>;
+ };
+ channel@1 {
+ reg = <1>;
+ };
+ channel@8 {
+ reg = <8>;
+ };
+ };
+ };
+
+ xadc@43200000 {
+ compatible = "xlnx,axi-xadc-1.00.a";
+ reg = <0x43200000 0x1000>;
+ interrupts = <0 53 4>;
+ interrupt-parent = <&gic>;
+ clocks = <&fpga1_clk>;
+
+ xlnx,channels {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ channel@0 {
+ reg = <0>;
+ xlnx,bipolar;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/addac/adi,ad74413r.yaml b/Documentation/devicetree/bindings/iio/addac/adi,ad74413r.yaml
new file mode 100644
index 000000000..baa65a521
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/addac/adi,ad74413r.yaml
@@ -0,0 +1,158 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/addac/adi,ad74413r.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD74412R/AD74413R device
+
+maintainers:
+ - Cosmin Tanislav <cosmin.tanislav@analog.com>
+
+description: |
+ The AD74412R and AD74413R are quad-channel software configurable input/output
+ solutions for building and process control applications. They contain
+ functionality for analog output, analog input, digital input, resistance
+ temperature detector, and thermocouple measurements integrated
+ into a single chip solution with an SPI interface.
+ The devices feature a 16-bit ADC and four configurable 13-bit DACs to provide
+ four configurable input/output channels and a suite of diagnostic functions.
+ The AD74413R differentiates itself from the AD74412R by being HART-compatible.
+ https://www.analog.com/en/products/ad74412r.html
+ https://www.analog.com/en/products/ad74413r.html
+
+properties:
+ compatible:
+ enum:
+ - adi,ad74412r
+ - adi,ad74413r
+
+ reg:
+ maxItems: 1
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ spi-max-frequency:
+ maximum: 1000000
+
+ spi-cpol: true
+
+ interrupts:
+ maxItems: 1
+
+ refin-supply: true
+
+ shunt-resistor-micro-ohms:
+ description:
+ Shunt (sense) resistor value in micro-Ohms.
+ default: 100000000
+
+required:
+ - compatible
+ - reg
+ - spi-max-frequency
+ - spi-cpol
+ - refin-supply
+
+additionalProperties: false
+
+patternProperties:
+ "^channel@[0-3]$":
+ type: object
+ description: Represents the external channels which are connected to the device.
+
+ properties:
+ reg:
+ description: |
+ The channel number. It can have up to 4 channels numbered from 0 to 3.
+ minimum: 0
+ maximum: 3
+
+ adi,ch-func:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ Channel function.
+ HART functions are not supported on AD74412R.
+ 0 - CH_FUNC_HIGH_IMPEDANCE
+ 1 - CH_FUNC_VOLTAGE_OUTPUT
+ 2 - CH_FUNC_CURRENT_OUTPUT
+ 3 - CH_FUNC_VOLTAGE_INPUT
+ 4 - CH_FUNC_CURRENT_INPUT_EXT_POWER
+ 5 - CH_FUNC_CURRENT_INPUT_LOOP_POWER
+ 6 - CH_FUNC_RESISTANCE_INPUT
+ 7 - CH_FUNC_DIGITAL_INPUT_LOGIC
+ 8 - CH_FUNC_DIGITAL_INPUT_LOOP_POWER
+ 9 - CH_FUNC_CURRENT_INPUT_EXT_POWER_HART
+ 10 - CH_FUNC_CURRENT_INPUT_LOOP_POWER_HART
+ minimum: 0
+ maximum: 10
+ default: 0
+
+ adi,gpo-comparator:
+ type: boolean
+ description: |
+ Whether to configure GPO as a comparator or not.
+ When not configured as a comparator, the GPO will be treated as an
+ output-only GPIO.
+
+ required:
+ - reg
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/iio/addac/adi,ad74413r.h>
+
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cs-gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
+ status = "okay";
+
+ ad74413r@0 {
+ compatible = "adi,ad74413r";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ spi-cpol;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ interrupt-parent = <&gpio>;
+ interrupts = <26 IRQ_TYPE_EDGE_FALLING>;
+
+ refin-supply = <&ad74413r_refin>;
+
+ channel@0 {
+ reg = <0>;
+
+ adi,ch-func = <CH_FUNC_VOLTAGE_OUTPUT>;
+ };
+
+ channel@1 {
+ reg = <1>;
+
+ adi,ch-func = <CH_FUNC_CURRENT_OUTPUT>;
+ };
+
+ channel@2 {
+ reg = <2>;
+
+ adi,ch-func = <CH_FUNC_DIGITAL_INPUT_LOGIC>;
+ adi,gpo-comparator;
+ };
+
+ channel@3 {
+ reg = <3>;
+
+ adi,ch-func = <CH_FUNC_CURRENT_INPUT_EXT_POWER>;
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/afe/current-sense-amplifier.txt b/Documentation/devicetree/bindings/iio/afe/current-sense-amplifier.txt
new file mode 100644
index 000000000..821b61b8c
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/afe/current-sense-amplifier.txt
@@ -0,0 +1,26 @@
+Current Sense Amplifier
+=======================
+
+When an io-channel measures the output voltage from a current sense
+amplifier, the interesting measurement is almost always the current
+through the sense resistor, not the voltage output. This binding
+describes such a current sense circuit.
+
+Required properties:
+- compatible : "current-sense-amplifier"
+- io-channels : Channel node of a voltage io-channel.
+- sense-resistor-micro-ohms : The sense resistance in microohms.
+
+Optional properties:
+- sense-gain-mult: Amplifier gain multiplier. The default is <1>.
+- sense-gain-div: Amplifier gain divider. The default is <1>.
+
+Example:
+
+sysi {
+ compatible = "current-sense-amplifier";
+ io-channels = <&tiadc 0>;
+
+ sense-resistor-micro-ohms = <20000>;
+ sense-gain-mul = <50>;
+};
diff --git a/Documentation/devicetree/bindings/iio/afe/current-sense-shunt.txt b/Documentation/devicetree/bindings/iio/afe/current-sense-shunt.txt
new file mode 100644
index 000000000..0f67108a0
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/afe/current-sense-shunt.txt
@@ -0,0 +1,41 @@
+Current Sense Shunt
+===================
+
+When an io-channel measures the voltage over a current sense shunt,
+the interesting measurement is almost always the current through the
+shunt, not the voltage over it. This binding describes such a current
+sense circuit.
+
+Required properties:
+- compatible : "current-sense-shunt"
+- io-channels : Channel node of a voltage io-channel.
+- shunt-resistor-micro-ohms : The shunt resistance in microohms.
+
+Example:
+The system current is measured by measuring the voltage over a
+3.3 ohms shunt resistor.
+
+sysi {
+ compatible = "current-sense-shunt";
+ io-channels = <&tiadc 0>;
+
+ /* Divide the voltage by 3300000/1000000 (or 3.3) for the current. */
+ shunt-resistor-micro-ohms = <3300000>;
+};
+
+&i2c {
+ tiadc: adc@48 {
+ compatible = "ti,ads1015";
+ reg = <0x48>;
+ #io-channel-cells = <1>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ channel@0 { /* IN0,IN1 differential */
+ reg = <0>;
+ ti,gain = <1>;
+ ti,datarate = <4>;
+ };
+ };
+};
diff --git a/Documentation/devicetree/bindings/iio/afe/voltage-divider.txt b/Documentation/devicetree/bindings/iio/afe/voltage-divider.txt
new file mode 100644
index 000000000..b452a8406
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/afe/voltage-divider.txt
@@ -0,0 +1,53 @@
+Voltage divider
+===============
+
+When an io-channel measures the midpoint of a voltage divider, the
+interesting voltage is often the voltage over the full resistance
+of the divider. This binding describes the voltage divider in such
+a curcuit.
+
+ Vin ----.
+ |
+ .-----.
+ | R |
+ '-----'
+ |
+ +---- Vout
+ |
+ .-----.
+ | Rout|
+ '-----'
+ |
+ GND
+
+Required properties:
+- compatible : "voltage-divider"
+- io-channels : Channel node of a voltage io-channel measuring Vout.
+- output-ohms : Resistance Rout over which the output voltage is measured.
+ See full-ohms.
+- full-ohms : Resistance R + Rout for the full divider. The io-channel
+ is scaled by the Rout / (R + Rout) quotient.
+
+Example:
+The system voltage is circa 12V, but divided down with a 22/222
+voltage divider (R = 200 Ohms, Rout = 22 Ohms) and fed to an ADC.
+
+sysv {
+ compatible = "voltage-divider";
+ io-channels = <&maxadc 1>;
+
+ /* Scale the system voltage by 22/222 to fit the ADC range. */
+ output-ohms = <22>;
+ full-ohms = <222>; /* 200 + 22 */
+};
+
+&spi {
+ maxadc: adc@0 {
+ compatible = "maxim,max1027";
+ reg = <0>;
+ #io-channel-cells = <1>;
+ interrupt-parent = <&gpio5>;
+ interrupts = <15 IRQ_TYPE_EDGE_RISING>;
+ spi-max-frequency = <1000000>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml b/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml
new file mode 100644
index 000000000..a557761d8
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/amplifiers/adi,hmc425a.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: HMC425A 6-bit Digital Step Attenuator
+
+maintainers:
+ - Michael Hennerich <michael.hennerich@analog.com>
+ - Beniamin Bia <beniamin.bia@analog.com>
+
+description: |
+ Digital Step Attenuator IIO device with gpio interface.
+ HMC425A 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, 2.2 - 8.0 GHz
+ https://www.analog.com/media/en/technical-documentation/data-sheets/hmc425A.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,hmc425a
+
+ vcc-supply: true
+
+ ctrl-gpios:
+ description:
+ Must contain an array of 6 GPIO specifiers, referring to the GPIO pins
+ connected to the control pins V1-V6.
+ minItems: 6
+ maxItems: 6
+
+required:
+ - compatible
+ - ctrl-gpios
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ gpio_hmc425a: hmc425a {
+ compatible = "adi,hmc425a";
+ ctrl-gpios = <&gpio 40 GPIO_ACTIVE_HIGH>,
+ <&gpio 39 GPIO_ACTIVE_HIGH>,
+ <&gpio 38 GPIO_ACTIVE_HIGH>,
+ <&gpio 37 GPIO_ACTIVE_HIGH>,
+ <&gpio 36 GPIO_ACTIVE_HIGH>,
+ <&gpio 35 GPIO_ACTIVE_HIGH>;
+ vcc-supply = <&foo>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/chemical/ams,ccs811.yaml b/Documentation/devicetree/bindings/iio/chemical/ams,ccs811.yaml
new file mode 100644
index 000000000..52341c8ba
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/chemical/ams,ccs811.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/chemical/ams,ccs811.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AMS CCS811 VOC Sensor
+
+maintainers:
+ - Narcisa Vasile <narcisaanamaria12@gmail.com>
+
+description: |
+ Ultra-Low Power Digital Gas Sensor for Monitoring Indoor Air Quality.
+
+properties:
+ compatible:
+ enum:
+ - ams,ccs811
+ reg:
+ maxItems: 1
+
+ reset-gpios:
+ description: GPIO connected to the nRESET line. This is an active low
+ input to CCS811.
+ maxItems: 1
+
+ wakeup-gpios:
+ description: GPIO connected to the nWAKE line. This is an active low
+ input to CCS811.
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ voc@5b {
+ compatible = "ams,ccs811";
+ reg = <0x5b>;
+ reset-gpios = <&gpioa 11 GPIO_ACTIVE_LOW>;
+ wakeup-gpios = <&gpioa 12 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/iio/chemical/atlas,sensor.yaml b/Documentation/devicetree/bindings/iio/chemical/atlas,sensor.yaml
new file mode 100644
index 000000000..4646deeb6
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/chemical/atlas,sensor.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/chemical/atlas,sensor.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Atlas Scientific OEM + EZO sensors
+
+maintainers:
+ - Matt Ranostay <matt.ranostay@konsulko.com>
+
+description: |
+ Atlas Scientific OEM + EZO sensors connected via I2C
+
+ Datasheets:
+ http://www.atlas-scientific.com/_files/_datasheets/_oem/DO_oem_datasheet.pdf
+ http://www.atlas-scientific.com/_files/_datasheets/_oem/EC_oem_datasheet.pdf
+ http://www.atlas-scientific.com/_files/_datasheets/_oem/ORP_oem_datasheet.pdf
+ http://www.atlas-scientific.com/_files/_datasheets/_oem/pH_oem_datasheet.pdf
+ http://www.atlas-scientific.com/_files/_datasheets/_oem/RTD_oem_datasheet.pdf
+ http://www.atlas-scientific.com/_files/_datasheets/_probe/EZO_CO2_Datasheet.pdf
+ https://www.atlas-scientific.com/files/EZO_O2_datasheet.pdf
+ https://www.atlas-scientific.com/files/EZO_HUM_Datasheet.pdf
+
+properties:
+ compatible:
+ enum:
+ - atlas,do-sm
+ - atlas,ec-sm
+ - atlas,orp-sm
+ - atlas,ph-sm
+ - atlas,rtd-sm
+ - atlas,co2-ezo
+ - atlas,o2-ezo
+ - atlas,hum-ezo
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ atlas@66 {
+ compatible = "atlas,orp-sm";
+ reg = <0x66>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <16 2>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/chemical/bme680.txt b/Documentation/devicetree/bindings/iio/chemical/bme680.txt
new file mode 100644
index 000000000..7f3827cfb
--- /dev/null
+++ b/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>;
+};
diff --git a/Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.yaml b/Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.yaml
new file mode 100644
index 000000000..1fe561574
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/chemical/plantower,pms7003.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Plantower PMS7003 air pollution sensor
+
+maintainers:
+ - Tomasz Duszynski <tduszyns@gmail.com>
+
+description: |
+ Air pollution sensor capable of measuring mass concentration of dust
+ particles.
+
+properties:
+ compatible:
+ enum:
+ - plantower,pms1003
+ - plantower,pms3003
+ - plantower,pms5003
+ - plantower,pms6003
+ - plantower,pms7003
+ - plantower,pmsa003
+
+ vcc-supply:
+ description: regulator that provides power to the sensor
+
+ plantower,set-gpios:
+ description: GPIO connected to the SET line
+ maxItems: 1
+
+ reset-gpios:
+ description: GPIO connected to the RESET line
+ maxItems: 1
+
+required:
+ - compatible
+ - vcc-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ serial {
+ air-pollution-sensor {
+ compatible = "plantower,pms7003";
+ vcc-supply = <&reg_vcc5v0>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/iio/chemical/sensirion,scd30.yaml b/Documentation/devicetree/bindings/iio/chemical/sensirion,scd30.yaml
new file mode 100644
index 000000000..40d87346f
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/chemical/sensirion,scd30.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/chemical/sensirion,scd30.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sensirion SCD30 carbon dioxide sensor
+
+maintainers:
+ - Tomasz Duszynski <tomasz.duszynski@octakon.com>
+
+description: |
+ Air quality sensor capable of measuring co2 concentration, temperature
+ and relative humidity.
+
+properties:
+ compatible:
+ enum:
+ - sensirion,scd30
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ vdd-supply: true
+
+ sensirion,sel-gpios:
+ description: GPIO connected to the SEL line
+ maxItems: 1
+
+ sensirion,pwm-gpios:
+ description: GPIO connected to the PWM line
+ maxItems: 1
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ # include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ co2-sensor@61 {
+ compatible = "sensirion,scd30";
+ reg = <0x61>;
+ vdd-supply = <&vdd>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
+ - |
+ # include <dt-bindings/interrupt-controller/irq.h>
+ serial {
+ co2-sensor {
+ compatible = "sensirion,scd30";
+ vdd-supply = <&vdd>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/iio/chemical/sensirion,sgp30.txt b/Documentation/devicetree/bindings/iio/chemical/sensirion,sgp30.txt
new file mode 100644
index 000000000..5844ed581
--- /dev/null
+++ b/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>;
+};
diff --git a/Documentation/devicetree/bindings/iio/chemical/sensirion,sps30.yaml b/Documentation/devicetree/bindings/iio/chemical/sensirion,sps30.yaml
new file mode 100644
index 000000000..a93d1972a
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/chemical/sensirion,sps30.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/chemical/sensirion,sps30.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sensirion SPS30 particulate matter sensor
+
+maintainers:
+ - Tomasz Duszynski <tduszyns@gmail.com>
+
+description: |
+ Air pollution sensor capable of measuring mass concentration of dust
+ particles.
+
+properties:
+ compatible:
+ enum:
+ - sensirion,sps30
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ air-pollution-sensor@69 {
+ compatible = "sensirion,sps30";
+ reg = <0x69>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/iio/common.yaml b/Documentation/devicetree/bindings/iio/common.yaml
new file mode 100644
index 000000000..f845b41d7
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/common.yaml
@@ -0,0 +1,37 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Common properties for iio sensors
+
+maintainers:
+ - Jonathan Cameron <jic23@kernel.org>
+ - Guido Günther <agx@sigxcpu.org>
+
+description: |
+ This document defines device tree properties common to several iio
+ sensors. It doesn't constitue a device tree binding specification by itself but
+ is meant to be referenced by device tree bindings.
+
+ When referenced from sensor tree bindings the properties defined in this
+ document are defined as follows. The sensor tree bindings are responsible for
+ defining whether each property is required or optional.
+
+properties:
+ proximity-near-level:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ For proximity sensors whether an object can be considered near to the
+ device depends on parameters like sensor position, covering glass and
+ aperture. This value gives an indication to userspace for which
+ sensor readings this is the case.
+
+ Raw proximity values equal or above this level should be
+ considered 'near' to the device (an object is near to the
+ sensor).
+
+additionalProperties: true
+
+...
diff --git a/Documentation/devicetree/bindings/iio/dac/ad5592r.txt b/Documentation/devicetree/bindings/iio/dac/ad5592r.txt
new file mode 100644
index 000000000..989f96f31
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/ad5592r.txt
@@ -0,0 +1,155 @@
+Analog Devices AD5592R/AD5593R DAC/ADC device driver
+
+Required properties for the AD5592R:
+ - compatible: Must be "adi,ad5592r"
+ - reg: SPI chip select number for the device
+ - spi-max-frequency: Max SPI frequency to use (< 30000000)
+ - spi-cpol: The AD5592R requires inverse clock polarity (CPOL) mode
+
+Required properties for the AD5593R:
+ - compatible: Must be "adi,ad5593r"
+ - reg: I2C address of the device
+
+Required properties for all supported chips:
+ - #address-cells: Should be 1.
+ - #size-cells: Should be 0.
+ - channel nodes:
+ Each child node represents one channel and has the following
+ Required properties:
+ * reg: Pin on which this channel is connected to.
+ * adi,mode: Mode or function of this channel.
+ Macros specifying the valid values
+ can be found in <dt-bindings/iio/adi,ad5592r.h>.
+
+ The following values are currently supported:
+ * CH_MODE_UNUSED (the pin is unused)
+ * CH_MODE_ADC (the pin is ADC input)
+ * CH_MODE_DAC (the pin is DAC output)
+ * CH_MODE_DAC_AND_ADC (the pin is DAC output
+ but can be monitored by an ADC, since
+ there is no disadvantage this
+ this should be considered as the
+ preferred DAC mode)
+ * CH_MODE_GPIO (the pin is registered
+ with GPIOLIB)
+ Optional properties:
+ * adi,off-state: State of this channel when unused or the
+ device gets removed. Macros specifying the
+ valid values can be found in
+ <dt-bindings/iio/adi,ad5592r.h>.
+
+ * CH_OFFSTATE_PULLDOWN (the pin is pulled down)
+ * CH_OFFSTATE_OUT_LOW (the pin is output low)
+ * CH_OFFSTATE_OUT_HIGH (the pin is output high)
+ * CH_OFFSTATE_OUT_TRISTATE (the pin is
+ tristated output)
+
+
+Optional properties:
+ - vref-supply: Phandle to the external reference voltage supply. This should
+ only be set if there is an external reference voltage connected to the VREF
+ pin. If the property is not set the internal 2.5V reference is used.
+ - reset-gpios : GPIO spec for the RESET pin. If specified, it will be
+ asserted during driver probe.
+ - gpio-controller: Marks the device node as a GPIO controller.
+ - #gpio-cells: Should be 2. The first cell is the GPIO number and the second
+ cell specifies GPIO flags, as defined in <dt-bindings/gpio/gpio.h>.
+
+AD5592R Example:
+
+ #include <dt-bindings/iio/adi,ad5592r.h>
+
+ vref: regulator-vref {
+ compatible = "regulator-fixed";
+ regulator-name = "vref-ad559x";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ ad5592r@0 {
+ #size-cells = <0>;
+ #address-cells = <1>;
+ #gpio-cells = <2>;
+ compatible = "adi,ad5592r";
+ reg = <0>;
+
+ spi-max-frequency = <1000000>;
+ spi-cpol;
+
+ vref-supply = <&vref>; /* optional */
+ reset-gpios = <&gpio0 86 0>; /* optional */
+ gpio-controller;
+
+ channel@0 {
+ reg = <0>;
+ adi,mode = <CH_MODE_DAC>;
+ };
+ channel@1 {
+ reg = <1>;
+ adi,mode = <CH_MODE_ADC>;
+ };
+ channel@2 {
+ reg = <2>;
+ adi,mode = <CH_MODE_DAC_AND_ADC>;
+ };
+ channel@3 {
+ reg = <3>;
+ adi,mode = <CH_MODE_DAC_AND_ADC>;
+ adi,off-state = <CH_OFFSTATE_PULLDOWN>;
+ };
+ channel@4 {
+ reg = <4>;
+ adi,mode = <CH_MODE_UNUSED>;
+ adi,off-state = <CH_OFFSTATE_PULLDOWN>;
+ };
+ channel@5 {
+ reg = <5>;
+ adi,mode = <CH_MODE_GPIO>;
+ adi,off-state = <CH_OFFSTATE_PULLDOWN>;
+ };
+ channel@6 {
+ reg = <6>;
+ adi,mode = <CH_MODE_GPIO>;
+ adi,off-state = <CH_OFFSTATE_PULLDOWN>;
+ };
+ channel@7 {
+ reg = <7>;
+ adi,mode = <CH_MODE_GPIO>;
+ adi,off-state = <CH_OFFSTATE_PULLDOWN>;
+ };
+ };
+
+AD5593R Example:
+
+ #include <dt-bindings/iio/adi,ad5592r.h>
+
+ ad5593r@10 {
+ #size-cells = <0>;
+ #address-cells = <1>;
+ #gpio-cells = <2>;
+ compatible = "adi,ad5593r";
+ reg = <0x10>;
+ gpio-controller;
+
+ channel@0 {
+ reg = <0>;
+ adi,mode = <CH_MODE_DAC>;
+ adi,off-state = <CH_OFFSTATE_PULLDOWN>;
+ };
+ channel@1 {
+ reg = <1>;
+ adi,mode = <CH_MODE_ADC>;
+ adi,off-state = <CH_OFFSTATE_PULLDOWN>;
+ };
+ channel@2 {
+ reg = <2>;
+ adi,mode = <CH_MODE_DAC_AND_ADC>;
+ adi,off-state = <CH_OFFSTATE_PULLDOWN>;
+ };
+ channel@6 {
+ reg = <6>;
+ adi,mode = <CH_MODE_GPIO>;
+ adi,off-state = <CH_OFFSTATE_PULLDOWN>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/dac/ad5755.txt b/Documentation/devicetree/bindings/iio/dac/ad5755.txt
new file mode 100644
index 000000000..502e1e55a
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/ad5755.txt
@@ -0,0 +1,124 @@
+* Analog Devices AD5755 IIO Multi-Channel DAC Linux Driver
+
+Required properties:
+ - compatible: Has to contain one of the following:
+ adi,ad5755
+ adi,ad5755-1
+ adi,ad5757
+ adi,ad5735
+ adi,ad5737
+
+ - reg: spi chip select number for the device
+ - spi-cpha or spi-cpol: is the only modes that is supported
+
+Recommended properties:
+ - spi-max-frequency: Definition as per
+ Documentation/devicetree/bindings/spi/spi-bus.txt
+
+Optional properties:
+See include/dt-bindings/iio/ad5755.h
+ - adi,ext-dc-dc-compenstation-resistor: boolean set if the hardware have an
+ external resistor and thereby bypasses
+ the internal compensation resistor.
+ - adi,dc-dc-phase:
+ Valid values for DC DC Phase control is:
+ 0: All dc-to-dc converters clock on the same edge.
+ 1: Channel A and Channel B clock on the same edge,
+ Channel C and Channel D clock on opposite edges.
+ 2: Channel A and Channel C clock on the same edge,
+ Channel B and Channel D clock on opposite edges.
+ 3: Channel A, Channel B, Channel C, and Channel D
+ clock 90 degrees out of phase from each other.
+ - adi,dc-dc-freq-hz:
+ Valid values for DC DC frequency is [Hz]:
+ 250000
+ 410000
+ 650000
+ - adi,dc-dc-max-microvolt:
+ Valid values for the maximum allowed Vboost voltage supplied by
+ the dc-to-dc converter is:
+ 23000000
+ 24500000
+ 27000000
+ 29500000
+
+Optional for every channel:
+ - adi,mode:
+ Valid values for DAC modes is:
+ 0: 0 V to 5 V voltage range.
+ 1: 0 V to 10 V voltage range.
+ 2: Plus minus 5 V voltage range.
+ 3: Plus minus 10 V voltage range.
+ 4: 4 mA to 20 mA current range.
+ 5: 0 mA to 20 mA current range.
+ 6: 0 mA to 24 mA current range.
+ - adi,ext-current-sense-resistor: boolean set if the hardware a external
+ current sense resistor.
+ - adi,enable-voltage-overrange: boolean enable voltage overrange
+ - adi,slew: Array of slewrate settings should contain 3 fields:
+ 1: Should be either 0 or 1 in order to enable or disable slewrate.
+ 2: Slew rate settings:
+ Valid values for the slew rate update frequency:
+ 64000
+ 32000
+ 16000
+ 8000
+ 4000
+ 2000
+ 1000
+ 500
+ 250
+ 125
+ 64
+ 32
+ 16
+ 8
+ 4
+ 0
+ 3: Slew step size:
+ Valid values for the step size LSBs:
+ 1
+ 2
+ 4
+ 16
+ 32
+ 64
+ 128
+ 256
+
+Example:
+dac@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "adi,ad5755";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ spi-cpha;
+ adi,dc-dc-phase = <0>;
+ adi,dc-dc-freq-hz = <410000>;
+ adi,dc-dc-max-microvolt = <23000000>;
+ channel@0 {
+ reg = <0>;
+ adi,mode = <4>;
+ adi,ext-current-sense-resistor;
+ adi,slew = <0 64000 1>;
+ };
+ channel@1 {
+ reg = <1>;
+ adi,mode = <4>;
+ adi,ext-current-sense-resistor;
+ adi,slew = <0 64000 1>;
+ };
+ channel@2 {
+ reg = <2>;
+ adi,mode = <4>;
+ adi,ext-current-sense-resistor;
+ adi,slew = <0 64000 1>;
+ };
+ channel@3 {
+ reg = <3>;
+ adi,mode = <4>;
+ adi,ext-current-sense-resistor;
+ adi,slew = <0 64000 1>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/iio/dac/ad5758.txt b/Documentation/devicetree/bindings/iio/dac/ad5758.txt
new file mode 100644
index 000000000..2f607f41f
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/ad5758.txt
@@ -0,0 +1,83 @@
+Analog Devices AD5758 DAC device driver
+
+Required properties for the AD5758:
+ - compatible: Must be "adi,ad5758"
+ - reg: SPI chip select number for the device
+ - spi-max-frequency: Max SPI frequency to use (< 50000000)
+ - spi-cpha: is the only mode that is supported
+
+Required properties:
+
+ - adi,dc-dc-mode: Mode of operation of the dc-to-dc converter
+ Dynamic Power Control (DPC)
+ In this mode, the AD5758 circuitry senses the output
+ voltage and dynamically regulates the supply voltage,
+ VDPC+, to meet compliance requirements plus an optimized
+ headroom voltage for the output buffer.
+
+ Programmable Power Control (PPC)
+ In this mode, the VDPC+ voltage is user-programmable to
+ a fixed level that needs to accommodate the maximum output
+ load required.
+
+ The output of the DAC core is either converted to a
+ current or voltage output at the VIOUT pin. Only one mode
+ can be enabled at any one time.
+
+ The following values are currently supported:
+ * 1: DPC current mode
+ * 2: DPC voltage mode
+ * 3: PPC current mode
+
+ Depending on the selected output mode (voltage or current) one of the
+ two properties must
+ be present:
+
+ - adi,range-microvolt: Voltage output range
+ The array of voltage output ranges must contain two fields:
+ * <0 5000000>: 0 V to 5 V voltage range
+ * <0 10000000>: 0 V to 10 V voltage range
+ * <(-5000000) 5000000>: ±5 V voltage range
+ * <(-10000000) 10000000>: ±10 V voltage range
+ - adi,range-microamp: Current output range
+ The array of current output ranges must contain two fields:
+ * <0 20000>: 0 mA to 20 mA current range
+ * <0 24000>: 0 mA to 24 mA current range
+ * <4 24000>: 4 mA to 20 mA current range
+ * <(-20000) 20000>: ±20 mA current range
+ * <(-24000) 24000>: ±24 mA current range
+ * <(-1000) 22000>: −1 mA to +22 mA current range
+
+Optional properties:
+
+ - reset-gpios : GPIO spec for the RESET pin. If specified, it will be
+ asserted during driver probe.
+
+ - adi,dc-dc-ilim-microamp: The dc-to-dc converter current limit
+ The following values are currently supported [uA]:
+ * 150000
+ * 200000
+ * 250000
+ * 300000
+ * 350000
+ * 400000
+
+ - adi,slew-time-us: The time it takes for the output to reach the
+ full scale [uS]
+ The supported range is between 133us up to 1023984375us
+
+AD5758 Example:
+
+ dac@0 {
+ compatible = "adi,ad5758";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ spi-cpha;
+
+ reset-gpios = <&gpio 22 0>;
+
+ adi,dc-dc-mode = <2>;
+ adi,range-microvolt = <0 10000000>;
+ adi,dc-dc-ilim-microamp = <200000>;
+ adi,slew-time-us = <125000>;
+ };
diff --git a/Documentation/devicetree/bindings/iio/dac/ad7303.txt b/Documentation/devicetree/bindings/iio/dac/ad7303.txt
new file mode 100644
index 000000000..914610f05
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/ad7303.txt
@@ -0,0 +1,23 @@
+Analog Devices AD7303 DAC device driver
+
+Required properties:
+ - compatible: Must be "adi,ad7303"
+ - reg: SPI chip select number for the device
+ - spi-max-frequency: Max SPI frequency to use (< 30000000)
+ - Vdd-supply: Phandle to the Vdd power supply
+
+Optional properties:
+ - REF-supply: Phandle to the external reference voltage supply. This should
+ only be set if there is an external reference voltage connected to the REF
+ pin. If the property is not set Vdd/2 is used as the reference voltage.
+
+Example:
+
+ ad7303@4 {
+ compatible = "adi,ad7303";
+ reg = <4>;
+ spi-max-frequency = <10000000>;
+ Vdd-supply = <&vdd_supply>;
+ adi,use-external-reference;
+ REF-supply = <&vref_supply>;
+ };
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5770r.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5770r.yaml
new file mode 100644
index 000000000..fb2c48fc7
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5770r.yaml
@@ -0,0 +1,190 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2020 Analog Devices Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/dac/adi,ad5770r.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD5770R DAC device driver
+
+maintainers:
+ - Mircea Caprioru <mircea.caprioru@analog.com>
+
+description: |
+ Bindings for the Analog Devices AD5770R current DAC device. Datasheet can be
+ found here:
+ https://www.analog.com/media/en/technical-documentation/data-sheets/AD5770R.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,ad5770r
+
+ reg:
+ maxItems: 1
+
+ avdd-supply:
+ description:
+ AVdd voltage supply. Represents two different supplies in the datasheet
+ that are in fact the same.
+
+ iovdd-supply:
+ description:
+ Voltage supply for the chip interface.
+
+ vref-supply:
+ description: Specify the voltage of the external reference used.
+ Available reference options are 1.25 V or 2.5 V. If no
+ external reference declared then the device will use the
+ internal reference of 1.25 V.
+
+ adi,external-resistor:
+ description: Specify if an external 2.5k ohm resistor is used. If not
+ specified the device will use an internal 2.5k ohm resistor.
+ The precision resistor is used for reference current generation.
+ type: boolean
+
+ reset-gpios:
+ description: GPIO spec for the RESET pin. If specified, it will be
+ asserted during driver probe.
+ maxItems: 1
+
+ spi-max-frequency: true
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ channel@0:
+ description: Represents an external channel which are
+ connected to the DAC. Channel 0 can act both as a current
+ source and sink.
+ type: object
+
+ properties:
+ reg:
+ description: This represents the channel number.
+ const: 0
+
+ adi,range-microamp:
+ description: Output range of the channel.
+ oneOf:
+ - items:
+ - const: 0
+ - const: 300000
+ - items:
+ - const: -60000
+ - const: 0
+ - items:
+ - const: -60000
+ - const: 300000
+
+ channel@1:
+ description: Represents an external channel which are
+ connected to the DAC.
+ type: object
+
+ properties:
+ reg:
+ description: This represents the channel number.
+ const: 1
+
+ adi,range-microamp:
+ description: Output range of the channel.
+ items:
+ - const: 0
+ - enum: [140000, 250000]
+
+ channel@2:
+ description: Represents an external channel which are
+ connected to the DAC.
+ type: object
+
+ properties:
+ reg:
+ description: This represents the channel number.
+ const: 2
+
+ adi,range-microamp:
+ description: Output range of the channel.
+ items:
+ - const: 0
+ - enum: [55000, 150000]
+
+patternProperties:
+ "^channel@([3-5])$":
+ type: object
+ description: Represents the external channels which are connected to the DAC.
+ properties:
+ reg:
+ description: This represents the channel number.
+ minimum: 3
+ maximum: 5
+
+ adi,range-microamp:
+ description: Output range of the channel.
+ items:
+ - const: 0
+ - enum: [45000, 100000]
+
+required:
+ - reg
+ - channel@0
+ - channel@1
+ - channel@2
+ - channel@3
+ - channel@4
+ - channel@5
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ad5770r@0 {
+ compatible = "adi,ad5770r";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ vref-supply = <&vref>;
+ adi,external-resistor;
+ reset-gpios = <&gpio 22 0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ channel@0 {
+ reg = <0>;
+ adi,range-microamp = <0 300000>;
+ };
+
+ channel@1 {
+ reg = <1>;
+ adi,range-microamp = <0 140000>;
+ };
+
+ channel@2 {
+ reg = <2>;
+ adi,range-microamp = <0 55000>;
+ };
+
+ channel@3 {
+ reg = <3>;
+ adi,range-microamp = <0 45000>;
+ };
+
+ channel@4 {
+ reg = <4>;
+ adi,range-microamp = <0 45000>;
+ };
+
+ channel@5 {
+ reg = <5>;
+ adi,range-microamp = <0 45000>;
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/dac/dpot-dac.txt b/Documentation/devicetree/bindings/iio/dac/dpot-dac.txt
new file mode 100644
index 000000000..fdf47a01b
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/dpot-dac.txt
@@ -0,0 +1,41 @@
+Bindings for DAC emulation using a digital potentiometer
+
+It is assumed that the dpot is used as a voltage divider between the
+current dpot wiper setting and the maximum resistance of the dpot. The
+divided voltage is provided by a vref regulator.
+
+ .------.
+ .-----------. | |
+ | vref |--' .---.
+ | regulator |--. | |
+ '-----------' | | d |
+ | | p |
+ | | o | wiper
+ | | t |<---------+
+ | | |
+ | '---' dac output voltage
+ | |
+ '------+------------+
+
+Required properties:
+- compatible: Should be "dpot-dac"
+- vref-supply: The regulator supplying the voltage divider.
+- io-channels: Channel node of the dpot to be used for the voltage division.
+- io-channel-names: Should be "dpot".
+
+Example:
+
+ &i2c {
+ dpot: mcp4651-503@28 {
+ compatible = "microchip,mcp4651-503";
+ reg = <0x28>;
+ #io-channel-cells = <1>;
+ };
+ };
+
+ dac {
+ compatible = "dpot-dac";
+ vref-supply = <&reg_3v3>;
+ io-channels = <&dpot 0>;
+ io-channel-names = "dpot";
+ };
diff --git a/Documentation/devicetree/bindings/iio/dac/ds4424.txt b/Documentation/devicetree/bindings/iio/dac/ds4424.txt
new file mode 100644
index 000000000..eaebbf8da
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/ds4424.txt
@@ -0,0 +1,20 @@
+Maxim Integrated DS4422/DS4424 7-bit Sink/Source Current DAC Device Driver
+
+Datasheet publicly available at:
+https://datasheets.maximintegrated.com/en/ds/DS4422-DS4424.pdf
+
+Required properties:
+ - compatible: Should be one of
+ maxim,ds4422
+ maxim,ds4424
+ - reg: Should contain the DAC I2C address
+
+Optional properties:
+ - vcc-supply: Power supply is optional. If not defined, driver will ignore it.
+
+Example:
+ ds4224@10 {
+ compatible = "maxim,ds4424";
+ reg = <0x10>; /* When A0, A1 pins are ground */
+ vcc-supply = <&vcc_3v3>;
+ };
diff --git a/Documentation/devicetree/bindings/iio/dac/lltc,ltc1660.yaml b/Documentation/devicetree/bindings/iio/dac/lltc,ltc1660.yaml
new file mode 100644
index 000000000..e51a585bd
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/lltc,ltc1660.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+# Copyright 2019 Marcus Folkesson <marcus.folkesson@gmail.com>
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/iio/dac/lltc,ltc1660.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Linear Technology Micropower octal 8-Bit and 10-Bit DACs
+
+maintainers:
+ - Marcus Folkesson <marcus.folkesson@gmail.com>
+
+description: |
+ Bindings for the Linear Technology Micropower octal 8-Bit and 10-Bit DAC.
+ Datasheet can be found here: https://www.analog.com/media/en/technical-documentation/data-sheets/166560fa.pdf
+
+properties:
+ compatible:
+ enum:
+ - lltc,ltc1660
+ - lltc,ltc1665
+
+ reg:
+ maxItems: 1
+
+ spi-max-frequency:
+ maximum: 5000000
+
+ vref-supply:
+ description: Phandle to the external reference voltage supply.
+
+required:
+ - compatible
+ - reg
+ - vref-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ dac@0 {
+ compatible = "lltc,ltc1660";
+ reg = <0>;
+ spi-max-frequency = <5000000>;
+ vref-supply = <&vref_reg>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/dac/lltc,ltc2632.yaml b/Documentation/devicetree/bindings/iio/dac/lltc,ltc2632.yaml
new file mode 100644
index 000000000..edf804d0a
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/lltc,ltc2632.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/iio/dac/lltc,ltc2632.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Linear Technology LTC263x 12-/10-/8-Bit Rail-to-Rail DAC
+
+maintainers:
+ - Michael Hennerich <michael.hennerich@analog.com>
+
+description: |
+ Bindings for the Linear Technology LTC2632/2634/2636 DAC
+ Datasheet can be found here: https://www.analog.com/media/en/technical-documentation/data-sheets/LTC263[246].pdf
+
+properties:
+ compatible:
+ enum:
+ - lltc,ltc2632-l12
+ - lltc,ltc2632-l10
+ - lltc,ltc2632-l8
+ - lltc,ltc2632-h12
+ - lltc,ltc2632-h10
+ - lltc,ltc2632-h8
+ - lltc,ltc2634-l12
+ - lltc,ltc2634-l10
+ - lltc,ltc2634-l8
+ - lltc,ltc2634-h12
+ - lltc,ltc2634-h10
+ - lltc,ltc2634-h8
+ - lltc,ltc2636-l12
+ - lltc,ltc2636-l10
+ - lltc,ltc2636-l8
+ - lltc,ltc2636-h12
+ - lltc,ltc2636-h10
+ - lltc,ltc2636-h8
+
+ reg:
+ maxItems: 1
+
+ spi-max-frequency:
+ maximum: 2000000
+
+ vref-supply:
+ description:
+ Phandle to the external reference voltage supply. This should
+ only be set if there is an external reference voltage connected to the VREF
+ pin. If the property is not set the internal reference is used.
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ vref: regulator-vref {
+ compatible = "regulator-fixed";
+ regulator-name = "vref-ltc2632";
+ regulator-min-microvolt = <1250000>;
+ regulator-max-microvolt = <1250000>;
+ regulator-always-on;
+ };
+
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ dac@0 {
+ compatible = "lltc,ltc2632";
+ reg = <0>; /* CS0 */
+ spi-max-frequency = <1000000>;
+ vref-supply = <&vref>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/dac/lpc1850-dac.txt b/Documentation/devicetree/bindings/iio/dac/lpc1850-dac.txt
new file mode 100644
index 000000000..42db783c4
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/lpc1850-dac.txt
@@ -0,0 +1,19 @@
+NXP LPC1850 DAC bindings
+
+Required properties:
+- compatible: Should be "nxp,lpc1850-dac"
+- reg: Offset and length of the register set for the ADC device
+- interrupts: The interrupt number for the ADC device
+- clocks: The root clock of the ADC controller
+- vref-supply: The regulator supply ADC reference voltage
+- resets: phandle to reset controller and line specifier
+
+Example:
+dac: dac@400e1000 {
+ compatible = "nxp,lpc1850-dac";
+ reg = <0x400e1000 0x1000>;
+ interrupts = <0>;
+ clocks = <&ccu1 CLK_APB3_DAC>;
+ vref-supply = <&reg_vdda>;
+ resets = <&rgu 42>;
+};
diff --git a/Documentation/devicetree/bindings/iio/dac/max5821.txt b/Documentation/devicetree/bindings/iio/dac/max5821.txt
new file mode 100644
index 000000000..54276ce8c
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/max5821.txt
@@ -0,0 +1,14 @@
+Maxim max5821 DAC device driver
+
+Required properties:
+ - compatible: Must be "maxim,max5821"
+ - reg: Should contain the DAC I2C address
+ - vref-supply: Phandle to the vref power supply
+
+Example:
+
+ max5821@38 {
+ compatible = "maxim,max5821";
+ reg = <0x38>;
+ vref-supply = <&reg_max5821>;
+ };
diff --git a/Documentation/devicetree/bindings/iio/dac/mcp4725.txt b/Documentation/devicetree/bindings/iio/dac/mcp4725.txt
new file mode 100644
index 000000000..1bc6c093f
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/mcp4725.txt
@@ -0,0 +1,35 @@
+Microchip mcp4725 and mcp4726 DAC device driver
+
+Required properties:
+ - compatible: Must be "microchip,mcp4725" or "microchip,mcp4726"
+ - reg: Should contain the DAC I2C address
+ - vdd-supply: Phandle to the Vdd power supply. This supply is used as a
+ voltage reference on mcp4725. It is used as a voltage reference on
+ mcp4726 if there is no vref-supply specified.
+
+Optional properties (valid only for mcp4726):
+ - vref-supply: Optional phandle to the Vref power supply. Vref pin is
+ used as a voltage reference when this supply is specified.
+ - microchip,vref-buffered: Boolean to enable buffering of the external
+ Vref pin. This boolean is not valid without the vref-supply. Quoting
+ the datasheet: This is offered in cases where the reference voltage
+ does not have the current capability not to drop its voltage when
+ connected to the internal resistor ladder circuit.
+
+Examples:
+
+ /* simple mcp4725 */
+ mcp4725@60 {
+ compatible = "microchip,mcp4725";
+ reg = <0x60>;
+ vdd-supply = <&vdac_vdd>;
+ };
+
+ /* mcp4726 with the buffered external reference voltage */
+ mcp4726@60 {
+ compatible = "microchip,mcp4726";
+ reg = <0x60>;
+ vdd-supply = <&vdac_vdd>;
+ vref-supply = <&vdac_vref>;
+ microchip,vref-buffered;
+ };
diff --git a/Documentation/devicetree/bindings/iio/dac/st,stm32-dac.yaml b/Documentation/devicetree/bindings/iio/dac/st,stm32-dac.yaml
new file mode 100644
index 000000000..393f70059
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/st,stm32-dac.yaml
@@ -0,0 +1,110 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/iio/dac/st,stm32-dac.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: STMicroelectronics STM32 DAC bindings
+
+description: |
+ The STM32 DAC is a 12-bit voltage output digital-to-analog converter. The DAC
+ may be configured in 8 or 12-bit mode. It has two output channels, each with
+ its own converter.
+ It has built-in noise and triangle waveform generator and supports external
+ triggers for conversions. The DAC's output buffer allows a high drive output
+ current.
+
+maintainers:
+ - Fabrice Gasnier <fabrice.gasnier@st.com>
+
+properties:
+ compatible:
+ enum:
+ - st,stm32f4-dac-core
+ - st,stm32h7-dac-core
+
+ reg:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: pclk
+
+ vref-supply:
+ description: Phandle to the vref input analog reference voltage.
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - vref-supply
+ - '#address-cells'
+ - '#size-cells'
+
+patternProperties:
+ "^dac@[1-2]+$":
+ type: object
+ description:
+ A DAC block node should contain at least one subnode, representing an
+ DAC instance/channel available on the machine.
+
+ properties:
+ compatible:
+ const: st,stm32-dac
+
+ reg:
+ description: Must be either 1 or 2, to define (single) channel in use
+ enum: [1, 2]
+
+ '#io-channel-cells':
+ const: 1
+
+ additionalProperties: false
+
+ required:
+ - compatible
+ - reg
+ - '#io-channel-cells'
+
+examples:
+ - |
+ // Example on stm32mp157c
+ #include <dt-bindings/clock/stm32mp1-clks.h>
+ dac: dac@40017000 {
+ compatible = "st,stm32h7-dac-core";
+ reg = <0x40017000 0x400>;
+ clocks = <&rcc DAC12>;
+ clock-names = "pclk";
+ vref-supply = <&vref>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ dac@1 {
+ compatible = "st,stm32-dac";
+ #io-channel-cells = <1>;
+ reg = <1>;
+ };
+
+ dac@2 {
+ compatible = "st,stm32-dac";
+ #io-channel-cells = <1>;
+ reg = <2>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/iio/dac/ti,dac5571.txt b/Documentation/devicetree/bindings/iio/dac/ti,dac5571.txt
new file mode 100644
index 000000000..03af6b9a4
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/ti,dac5571.txt
@@ -0,0 +1,24 @@
+* Texas Instruments DAC5571 Family
+
+Required properties:
+ - compatible: Should contain
+ "ti,dac5571"
+ "ti,dac6571"
+ "ti,dac7571"
+ "ti,dac5574"
+ "ti,dac6574"
+ "ti,dac7574"
+ "ti,dac5573"
+ "ti,dac6573"
+ "ti,dac7573"
+ - reg: Should contain the DAC I2C address
+
+Optional properties:
+ - vref-supply: The regulator supply for DAC reference voltage
+
+Example:
+dac@0 {
+ compatible = "ti,dac5571";
+ reg = <0x4C>;
+ vref-supply = <&vdd_supply>;
+};
diff --git a/Documentation/devicetree/bindings/iio/dac/ti,dac7311.txt b/Documentation/devicetree/bindings/iio/dac/ti,dac7311.txt
new file mode 100644
index 000000000..e5a507db5
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/ti,dac7311.txt
@@ -0,0 +1,23 @@
+TI DAC7311 device tree bindings
+
+Required properties:
+- compatible: must be set to:
+ * "ti,dac7311"
+ * "ti,dac6311"
+ * "ti,dac5311"
+- reg: spi chip select number for the device
+- vref-supply: The regulator supply for ADC reference voltage
+
+Optional properties:
+- spi-max-frequency: Max SPI frequency to use
+
+Example:
+
+ spi_master {
+ dac@0 {
+ compatible = "ti,dac7311";
+ reg = <0>; /* CS0 */
+ spi-max-frequency = <1000000>;
+ vref-supply = <&vdd_supply>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/dac/ti,dac7512.txt b/Documentation/devicetree/bindings/iio/dac/ti,dac7512.txt
new file mode 100644
index 000000000..1db45939d
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/ti,dac7512.txt
@@ -0,0 +1,20 @@
+TI DAC7512 DEVICETREE BINDINGS
+
+Required properties:
+
+ - "compatible" Must be set to "ti,dac7512"
+
+Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt
+apply. In particular, "reg" and "spi-max-frequency" properties must be given.
+
+
+Example:
+
+ spi_master {
+ dac7512: dac7512@0 {
+ compatible = "ti,dac7512";
+ reg = <0>; /* CS0 */
+ spi-max-frequency = <1000000>;
+ };
+ };
+
diff --git a/Documentation/devicetree/bindings/iio/dac/ti,dac7612.txt b/Documentation/devicetree/bindings/iio/dac/ti,dac7612.txt
new file mode 100644
index 000000000..17af395b9
--- /dev/null
+++ b/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.
+
+https://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>;
+ };
diff --git a/Documentation/devicetree/bindings/iio/dac/ti-dac082s085.txt b/Documentation/devicetree/bindings/iio/dac/ti-dac082s085.txt
new file mode 100644
index 000000000..9cb0e10df
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/ti-dac082s085.txt
@@ -0,0 +1,34 @@
+Texas Instruments 8/10/12-bit 2/4-channel DAC driver
+
+Required properties:
+ - compatible: Must be one of:
+ "ti,dac082s085"
+ "ti,dac102s085"
+ "ti,dac122s085"
+ "ti,dac084s085"
+ "ti,dac104s085"
+ "ti,dac124s085"
+ - reg: Chip select number.
+ - spi-cpha, spi-cpol: SPI mode (0,1) or (1,0) must be used, so specify
+ either spi-cpha or spi-cpol (but not both).
+ - vref-supply: Phandle to the external reference voltage supply.
+
+For other required and optional properties of SPI slave nodes please refer to
+../../spi/spi-bus.txt.
+
+Example:
+ vref_2v5_reg: regulator-vref {
+ compatible = "regulator-fixed";
+ regulator-name = "2v5";
+ regulator-min-microvolt = <2500000>;
+ regulator-max-microvolt = <2500000>;
+ regulator-always-on;
+ };
+
+ dac@0 {
+ compatible = "ti,dac082s085";
+ reg = <0>;
+ spi-max-frequency = <40000000>;
+ spi-cpol;
+ vref-supply = <&vref_2v5_reg>;
+ };
diff --git a/Documentation/devicetree/bindings/iio/dac/vf610-dac.txt b/Documentation/devicetree/bindings/iio/dac/vf610-dac.txt
new file mode 100644
index 000000000..20c6c7ae9
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/vf610-dac.txt
@@ -0,0 +1,20 @@
+Freescale vf610 Digital to Analog Converter bindings
+
+The devicetree bindings are for the new DAC driver written for
+vf610 SoCs from Freescale.
+
+Required properties:
+- compatible: Should contain "fsl,vf610-dac"
+- reg: Offset and length of the register set for the device
+- interrupts: Should contain the interrupt for the device
+- clocks: The clock is needed by the DAC controller
+- clock-names: Must contain "dac" matching entry in the clocks property.
+
+Example:
+dac0: dac@400cc000 {
+ compatible = "fsl,vf610-dac";
+ reg = <0x400cc000 0x1000>;
+ interrupts = <55 IRQ_TYPE_LEVEL_HIGH>;
+ clock-names = "dac";
+ clocks = <&clks VF610_CLK_DAC0>;
+};
diff --git a/Documentation/devicetree/bindings/iio/frequency/adf4350.txt b/Documentation/devicetree/bindings/iio/frequency/adf4350.txt
new file mode 100644
index 000000000..f8c181d81
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/frequency/adf4350.txt
@@ -0,0 +1,86 @@
+Analog Devices ADF4350/ADF4351 device driver
+
+Required properties:
+ - compatible: Should be one of
+ * "adi,adf4350": When using the ADF4350 device
+ * "adi,adf4351": When using the ADF4351 device
+ - reg: SPI chip select numbert for the device
+ - spi-max-frequency: Max SPI frequency to use (< 20000000)
+ - clocks: From common clock binding. Clock is phandle to clock for
+ ADF435x Reference Clock (CLKIN).
+
+Optional properties:
+ - gpios: GPIO Lock detect - If set with a valid phandle and GPIO number,
+ pll lock state is tested upon read.
+ - adi,channel-spacing: Channel spacing in Hz (influences MODULUS).
+ - adi,power-up-frequency: If set in Hz the PLL tunes to
+ the desired frequency on probe.
+ - adi,reference-div-factor: If set the driver skips dynamic calculation
+ and uses this default value instead.
+ - adi,reference-doubler-enable: Enables reference doubler.
+ - adi,reference-div2-enable: Enables reference divider.
+ - adi,phase-detector-polarity-positive-enable: Enables positive phase
+ detector polarity. Default = negative.
+ - adi,lock-detect-precision-6ns-enable: Enables 6ns lock detect precision.
+ Default = 10ns.
+ - adi,lock-detect-function-integer-n-enable: Enables lock detect
+ for integer-N mode. Default = factional-N mode.
+ - adi,charge-pump-current: Charge pump current in mA.
+ Default = 2500mA.
+ - adi,muxout-select: On chip multiplexer output selection.
+ Valid values for the multiplexer output are:
+ 0: Three-State Output (default)
+ 1: DVDD
+ 2: DGND
+ 3: R-Counter output
+ 4: N-Divider output
+ 5: Analog lock detect
+ 6: Digital lock detect
+ - adi,low-spur-mode-enable: Enables low spur mode.
+ Default = Low noise mode.
+ - adi,cycle-slip-reduction-enable: Enables cycle slip reduction.
+ - adi,charge-cancellation-enable: Enabled charge pump
+ charge cancellation for integer-N modes.
+ - adi,anti-backlash-3ns-enable: Enables 3ns antibacklash pulse width
+ for integer-N modes.
+ - adi,band-select-clock-mode-high-enable: Enables faster band
+ selection logic.
+ - adi,12bit-clk-divider: Clock divider value used when
+ adi,12bit-clkdiv-mode != 0
+ - adi,clk-divider-mode:
+ Valid values for the clkdiv mode are:
+ 0: Clock divider off (default)
+ 1: Fast lock enable
+ 2: Phase resync enable
+ - adi,aux-output-enable: Enables auxiliary RF output.
+ - adi,aux-output-fundamental-enable: Selects fundamental VCO output on
+ the auxiliary RF output. Default = Output of RF dividers.
+ - adi,mute-till-lock-enable: Enables Mute-Till-Lock-Detect function.
+ - adi,output-power: Output power selection.
+ Valid values for the power mode are:
+ 0: -4dBm (default)
+ 1: -1dBm
+ 2: +2dBm
+ 3: +5dBm
+ - adi,aux-output-power: Auxiliary output power selection.
+ Valid values for the power mode are:
+ 0: -4dBm (default)
+ 1: -1dBm
+ 2: +2dBm
+ 3: +5dBm
+
+
+Example:
+ lo_pll0_rx_adf4351: adf4351-rx-lpc@4 {
+ compatible = "adi,adf4351";
+ reg = <4>;
+ spi-max-frequency = <10000000>;
+ clocks = <&clk0_ad9523 9>;
+ clock-names = "clkin";
+ adi,channel-spacing = <10000>;
+ adi,power-up-frequency = <2400000000>;
+ adi,phase-detector-polarity-positive-enable;
+ adi,charge-pump-current = <2500>;
+ adi,output-power = <3>;
+ adi,mute-till-lock-enable;
+ };
diff --git a/Documentation/devicetree/bindings/iio/frequency/adf4371.yaml b/Documentation/devicetree/bindings/iio/frequency/adf4371.yaml
new file mode 100644
index 000000000..6b3a611e1
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/frequency/adf4371.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/frequency/adf4371.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices ADF4371/ADF4372 Wideband Synthesizers
+
+maintainers:
+ - Popa Stefan <stefan.popa@analog.com>
+
+description: |
+ Analog Devices ADF4371/ADF4372 SPI Wideband Synthesizers
+ https://www.analog.com/media/en/technical-documentation/data-sheets/adf4371.pdf
+ https://www.analog.com/media/en/technical-documentation/data-sheets/adf4372.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,adf4371
+ - adi,adf4372
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ description:
+ Definition of the external clock (see clock/clock-bindings.txt)
+ maxItems: 1
+
+ clock-names:
+ description:
+ Must be "clkin"
+ maxItems: 1
+
+ adi,mute-till-lock-en:
+ type: boolean
+ description:
+ If this property is present, then the supply current to RF8P and RF8N
+ output stage will shut down until the ADF4371/ADF4372 achieves lock as
+ measured by the digital lock detect circuitry.
+
+ spi-max-frequency: true
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ spi0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ frequency@0 {
+ compatible = "adi,adf4371";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ clocks = <&adf4371_clkin>;
+ clock-names = "clkin";
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/gyroscope/adi,adxrs290.yaml b/Documentation/devicetree/bindings/iio/gyroscope/adi,adxrs290.yaml
new file mode 100644
index 000000000..662ec59ca
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/gyroscope/adi,adxrs290.yaml
@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2020 Analog Devices Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/gyroscope/adi,adxrs290.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices ADXRS290 Dual-Axis MEMS Gyroscope
+
+maintainers:
+ - Nishant Malpani <nish.malpani25@gmail.com>
+
+description: |
+ Bindings for the Analog Devices ADXRS290 dual-axis MEMS gyroscope device.
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ADXRS290.pdf
+
+properties:
+ compatible:
+ const: adi,adxrs290
+
+ reg:
+ maxItems: 1
+
+ spi-max-frequency:
+ maximum: 5000000
+
+ spi-cpol: true
+
+ spi-cpha: true
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - spi-max-frequency
+ - spi-cpol
+ - spi-cpha
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ gyro@0 {
+ compatible = "adi,adxrs290";
+ reg = <0>;
+ spi-max-frequency = <5000000>;
+ spi-cpol;
+ spi-cpha;
+ interrupt-parent = <&gpio>;
+ interrupts = <25 IRQ_TYPE_EDGE_RISING>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/gyroscope/bmg160.txt b/Documentation/devicetree/bindings/iio/gyroscope/bmg160.txt
new file mode 100644
index 000000000..bb43d1ad9
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/gyroscope/bmg160.txt
@@ -0,0 +1,20 @@
+* Bosch BMG160 triaxial rotation sensor (gyroscope)
+
+Required properties:
+
+ - compatible : should be "bosch,bmg160", "bosch,bmi055_gyro" or "bosch,bmi088_gyro"
+ - reg : the I2C address of the sensor (0x69)
+
+Optional properties:
+
+ - interrupts : interrupt mapping for GPIO IRQ, it should by configured with
+ flags IRQ_TYPE_EDGE_RISING
+
+Example:
+
+bmg160@69 {
+ compatible = "bosch,bmg160";
+ reg = <0x69>;
+ interrupt-parent = <&gpio6>;
+ interrupts = <18 (IRQ_TYPE_EDGE_RISING)>;
+};
diff --git a/Documentation/devicetree/bindings/iio/gyroscope/invensense,mpu3050.txt b/Documentation/devicetree/bindings/iio/gyroscope/invensense,mpu3050.txt
new file mode 100644
index 000000000..233fe207a
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/gyroscope/invensense,mpu3050.txt
@@ -0,0 +1,45 @@
+Invensense MPU-3050 Gyroscope device tree bindings
+
+Required properties:
+ - compatible : should be "invensense,mpu3050"
+ - reg : the I2C address of the sensor
+
+Optional properties:
+ - interrupts : interrupt mapping for the trigger interrupt from the
+ internal oscillator. The following IRQ modes are supported:
+ IRQ_TYPE_EDGE_RISING, IRQ_TYPE_EDGE_FALLING, IRQ_TYPE_LEVEL_HIGH and
+ IRQ_TYPE_LEVEL_LOW. The driver should detect and configure the hardware
+ for the desired interrupt type.
+ - vdd-supply : supply regulator for the main power voltage.
+ - vlogic-supply : supply regulator for the signal voltage.
+ - mount-matrix : see iio/mount-matrix.txt
+
+Optional subnodes:
+ - The MPU-3050 will pass through and forward the I2C signals from the
+ incoming I2C bus, alternatively drive traffic to a slave device (usually
+ an accelerometer) on its own initiative. Therefore is supports a subnode
+ i2c gate node. For details see: i2c/i2c-gate.txt
+
+Example:
+
+mpu3050@68 {
+ compatible = "invensense,mpu3050";
+ reg = <0x68>;
+ interrupt-parent = <&foo>;
+ interrupts = <12 IRQ_TYPE_EDGE_FALLING>;
+ vdd-supply = <&bar>;
+ vlogic-supply = <&baz>;
+
+ /* External I2C interface */
+ i2c-gate {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ fnord@18 {
+ compatible = "fnord";
+ reg = <0x18>;
+ interrupt-parent = <&foo>;
+ interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
+ };
+ };
+};
diff --git a/Documentation/devicetree/bindings/iio/gyroscope/nxp,fxas21002c.txt b/Documentation/devicetree/bindings/iio/gyroscope/nxp,fxas21002c.txt
new file mode 100644
index 000000000..465e104bb
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/gyroscope/nxp,fxas21002c.txt
@@ -0,0 +1,31 @@
+* NXP FXAS21002C Gyroscope device tree bindings
+
+http://www.nxp.com/products/sensors/gyroscopes/3-axis-digital-gyroscope:FXAS21002C
+
+Required properties:
+ - compatible : should be "nxp,fxas21002c"
+ - reg : the I2C address of the sensor or SPI chip select number for the
+ device.
+ - vdd-supply: phandle to the regulator that provides power to the sensor.
+ - vddio-supply: phandle to the regulator that provides power to the bus.
+
+Optional properties:
+ - reset-gpios : gpio used to reset the device, see gpio/gpio.txt
+ - interrupts : device support 2 interrupts, INT1 and INT2,
+ the interrupts can be triggered on rising or falling edges.
+ See interrupt-controller/interrupts.txt
+ - interrupt-names: should contain "INT1" or "INT2", the gyroscope interrupt
+ line in use.
+ - drive-open-drain: the interrupt/data ready line will be configured
+ as open drain, which is useful if several sensors share
+ the same interrupt line. This is a boolean property.
+ (This binding is taken from pinctrl/pinctrl-bindings.txt)
+
+Example:
+
+gyroscope@20 {
+ compatible = "nxp,fxas21002c";
+ reg = <0x20>;
+ vdd-supply = <&reg_peri_3p15v>;
+ vddio-supply = <&reg_peri_3p15v>;
+};
diff --git a/Documentation/devicetree/bindings/iio/health/afe4403.txt b/Documentation/devicetree/bindings/iio/health/afe4403.txt
new file mode 100644
index 000000000..8e412054d
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/health/afe4403.txt
@@ -0,0 +1,33 @@
+Texas Instruments AFE4403 Heart rate and Pulse Oximeter
+
+Required properties:
+ - compatible : Should be "ti,afe4403".
+ - reg : SPI chip select address of device.
+ - tx-supply : Regulator supply to transmitting LEDs.
+ - interrupts : The interrupt line the device ADC_RDY pin is
+ connected to. For details refer to,
+ ../../interrupt-controller/interrupts.txt.
+
+Optional properties:
+ - reset-gpios : GPIO used to reset the device.
+ For details refer to, ../../gpio/gpio.txt.
+
+For other required and optional properties of SPI slave nodes
+please refer to ../../spi/spi-bus.txt.
+
+Example:
+
+&spi0 {
+ heart_mon@0 {
+ compatible = "ti,afe4403";
+ reg = <0>;
+ spi-max-frequency = <10000000>;
+
+ tx-supply = <&vbat>;
+
+ interrupt-parent = <&gpio1>;
+ interrupts = <28 IRQ_TYPE_EDGE_RISING>;
+
+ reset-gpios = <&gpio1 16 GPIO_ACTIVE_LOW>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/iio/health/afe4404.txt b/Documentation/devicetree/bindings/iio/health/afe4404.txt
new file mode 100644
index 000000000..0b52830a0
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/health/afe4404.txt
@@ -0,0 +1,29 @@
+Texas Instruments AFE4404 Heart rate and Pulse Oximeter
+
+Required properties:
+ - compatible : Should be "ti,afe4404".
+ - reg : I2C address of the device.
+ - tx-supply : Regulator supply to transmitting LEDs.
+ - interrupts : The interrupt line the device ADC_RDY pin is
+ connected to. For details refer to,
+ ../interrupt-controller/interrupts.txt.
+
+Optional properties:
+ - reset-gpios : GPIO used to reset the device.
+ For details refer to, ../gpio/gpio.txt.
+
+Example:
+
+&i2c2 {
+ heart_mon@58 {
+ compatible = "ti,afe4404";
+ reg = <0x58>;
+
+ tx-supply = <&vbat>;
+
+ interrupt-parent = <&gpio1>;
+ interrupts = <28 IRQ_TYPE_EDGE_RISING>;
+
+ reset-gpios = <&gpio1 16 GPIO_ACTIVE_LOW>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/iio/health/max30100.txt b/Documentation/devicetree/bindings/iio/health/max30100.txt
new file mode 100644
index 000000000..0054908a6
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/health/max30100.txt
@@ -0,0 +1,28 @@
+Maxim MAX30100 heart rate and pulse oximeter sensor
+
+* https://datasheets.maximintegrated.com/en/ds/MAX30100.pdf
+
+Required properties:
+ - compatible: must be "maxim,max30100"
+ - reg: the I2C address of the sensor
+ - interrupts: the sole interrupt generated by the device
+
+ Refer to interrupt-controller/interrupts.txt for generic
+ interrupt client node bindings.
+
+Optional properties:
+ - maxim,led-current-microamp: configuration for LED current in microamperes
+ while the engine is running. First indexed value is the configuration for
+ the RED LED, and second value is for the IR LED.
+
+ Refer to the datasheet for the allowed current values.
+
+Example:
+
+max30100@57 {
+ compatible = "maxim,max30100";
+ reg = <0x57>;
+ maxim,led-current-microamp = <24000 50000>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <16 2>;
+};
diff --git a/Documentation/devicetree/bindings/iio/health/max30102.txt b/Documentation/devicetree/bindings/iio/health/max30102.txt
new file mode 100644
index 000000000..7ef7ae40a
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/health/max30102.txt
@@ -0,0 +1,33 @@
+Maxim MAX30102 heart rate and pulse oximeter sensor
+Maxim MAX30105 optical particle-sensing module
+
+* https://datasheets.maximintegrated.com/en/ds/MAX30102.pdf
+* https://datasheets.maximintegrated.com/en/ds/MAX30105.pdf
+
+Required properties:
+ - compatible: must be "maxim,max30102" or "maxim,max30105"
+ - reg: the I2C address of the sensor
+ - interrupts: the sole interrupt generated by the device
+
+ Refer to interrupt-controller/interrupts.txt for generic
+ interrupt client node bindings.
+
+Optional properties:
+ - maxim,red-led-current-microamp: configuration for red LED current
+ - maxim,ir-led-current-microamp: configuration for IR LED current
+ - maxim,green-led-current-microamp: configuration for green LED current
+ (max30105 only)
+
+ Note that each step is approximately 200 microamps, ranging from 0 uA to
+ 50800 uA.
+
+Example:
+
+max30102@57 {
+ compatible = "maxim,max30102";
+ reg = <0x57>;
+ maxim,red-led-current-microamp = <7000>;
+ maxim,ir-led-current-microamp = <7000>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <16 2>;
+};
diff --git a/Documentation/devicetree/bindings/iio/humidity/dht11.txt b/Documentation/devicetree/bindings/iio/humidity/dht11.txt
new file mode 100644
index 000000000..ecc24c199
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/humidity/dht11.txt
@@ -0,0 +1,14 @@
+* DHT11 humidity/temperature sensor (and compatibles like DHT22)
+
+Required properties:
+ - compatible: Should be "dht11"
+ - gpios: Should specify the GPIO connected to the sensor's data
+ line, see "gpios property" in
+ Documentation/devicetree/bindings/gpio/gpio.txt.
+
+Example:
+
+humidity_sensor {
+ compatible = "dht11";
+ gpios = <&gpio0 6 0>;
+}
diff --git a/Documentation/devicetree/bindings/iio/humidity/hdc100x.txt b/Documentation/devicetree/bindings/iio/humidity/hdc100x.txt
new file mode 100644
index 000000000..c52333bdf
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/humidity/hdc100x.txt
@@ -0,0 +1,17 @@
+* HDC100x temperature + humidity sensors
+
+Required properties:
+ - compatible: Should contain one of the following:
+ ti,hdc1000
+ ti,hdc1008
+ ti,hdc1010
+ ti,hdc1050
+ ti,hdc1080
+ - reg: i2c address of the sensor
+
+Example:
+
+hdc100x@40 {
+ compatible = "ti,hdc1000";
+ reg = <0x40>;
+};
diff --git a/Documentation/devicetree/bindings/iio/humidity/hts221.txt b/Documentation/devicetree/bindings/iio/humidity/hts221.txt
new file mode 100644
index 000000000..84d029372
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/humidity/hts221.txt
@@ -0,0 +1,30 @@
+* HTS221 STM humidity + temperature sensor
+
+Required properties:
+- compatible: should be "st,hts221"
+- reg: i2c address of the sensor / spi cs line
+
+Optional properties:
+- drive-open-drain: the interrupt/data ready line will be configured
+ as open drain, which is useful if several sensors share the same
+ interrupt line. This is a boolean property.
+ If the requested interrupt is configured as IRQ_TYPE_LEVEL_HIGH or
+ IRQ_TYPE_EDGE_RISING a pull-down resistor is needed to drive the line
+ when it is not active, whereas a pull-up one is needed when interrupt
+ line is configured as IRQ_TYPE_LEVEL_LOW or IRQ_TYPE_EDGE_FALLING.
+ Refer to pinctrl/pinctrl-bindings.txt for the property description.
+- interrupts: interrupt mapping for IRQ. It should be configured with
+ flags IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_EDGE_RISING, IRQ_TYPE_LEVEL_LOW or
+ IRQ_TYPE_EDGE_FALLING.
+
+ Refer to interrupt-controller/interrupts.txt for generic interrupt
+ client node bindings.
+
+Example:
+
+hts221@5f {
+ compatible = "st,hts221";
+ reg = <0x5f>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <0 IRQ_TYPE_EDGE_RISING>;
+};
diff --git a/Documentation/devicetree/bindings/iio/humidity/htu21.txt b/Documentation/devicetree/bindings/iio/humidity/htu21.txt
new file mode 100644
index 000000000..97d79636f
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/humidity/htu21.txt
@@ -0,0 +1,13 @@
+*HTU21 - Measurement-Specialties htu21 temperature & humidity sensor and humidity part of MS8607 sensor
+
+Required properties:
+
+ - compatible: should be "meas,htu21" or "meas,ms8607-humidity"
+ - reg: I2C address of the sensor
+
+Example:
+
+htu21@40 {
+ compatible = "meas,htu21";
+ reg = <0x40>;
+};
diff --git a/Documentation/devicetree/bindings/iio/humidity/ti,hdc2010.yaml b/Documentation/devicetree/bindings/iio/humidity/ti,hdc2010.yaml
new file mode 100644
index 000000000..7037f82ec
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/humidity/ti,hdc2010.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/humidity/ti,hdc2010.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: HDC2010/HDC2080 humidity and temperature iio sensors
+
+maintainers:
+ - Eugene Zaikonnikov <ez@norophonic.com>
+
+description: |
+ Relative humidity and tempereature sensors on I2C bus
+
+ Datasheets are available at:
+ http://www.ti.com/product/HDC2010/datasheet
+ http://www.ti.com/product/HDC2080/datasheet
+
+properties:
+ compatible:
+ enum:
+ - ti,hdc2010
+ - ti,hdc2080
+
+ vdd-supply:
+ maxItems: 1
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ humidity@40 {
+ compatible = "ti,hdc2010";
+ reg = <0x40>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/iio-bindings.txt b/Documentation/devicetree/bindings/iio/iio-bindings.txt
new file mode 100644
index 000000000..aa63cac73
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/iio-bindings.txt
@@ -0,0 +1,102 @@
+This binding is derived from clock bindings, and based on suggestions
+from Lars-Peter Clausen [1].
+
+Sources of IIO channels can be represented by any node in the device
+tree. Those nodes are designated as IIO providers. IIO consumer
+nodes use a phandle and IIO specifier pair to connect IIO provider
+outputs to IIO inputs. Similar to the gpio specifiers, an IIO
+specifier is an array of one or more cells identifying the IIO
+output on a device. The length of an IIO specifier is defined by the
+value of a #io-channel-cells property in the IIO provider node.
+
+[1] https://marc.info/?l=linux-iio&m=135902119507483&w=2
+
+==IIO providers==
+
+Required properties:
+#io-channel-cells: Number of cells in an IIO specifier; Typically 0 for nodes
+ with a single IIO output and 1 for nodes with multiple
+ IIO outputs.
+
+Optional properties:
+label: A symbolic name for the device.
+
+
+Example for a simple configuration with no trigger:
+
+ adc: voltage-sensor@35 {
+ compatible = "maxim,max1139";
+ reg = <0x35>;
+ #io-channel-cells = <1>;
+ label = "voltage_feedback_group1";
+ };
+
+Example for a configuration with trigger:
+
+ adc@35 {
+ compatible = "some-vendor,some-adc";
+ reg = <0x35>;
+
+ adc1: iio-device@0 {
+ #io-channel-cells = <1>;
+ /* other properties */
+ };
+ adc2: iio-device@1 {
+ #io-channel-cells = <1>;
+ /* other properties */
+ };
+ };
+
+==IIO consumers==
+
+Required properties:
+io-channels: List of phandle and IIO specifier pairs, one pair
+ for each IIO input to the device. Note: if the
+ IIO provider specifies '0' for #io-channel-cells,
+ then only the phandle portion of the pair will appear.
+
+Optional properties:
+io-channel-names:
+ List of IIO input name strings sorted in the same
+ order as the io-channels property. Consumers drivers
+ will use io-channel-names to match IIO input names
+ with IIO specifiers.
+io-channel-ranges:
+ Empty property indicating that child nodes can inherit named
+ IIO channels from this node. Useful for bus nodes to provide
+ and IIO channel to their children.
+
+For example:
+
+ device {
+ io-channels = <&adc 1>, <&ref 0>;
+ io-channel-names = "vcc", "vdd";
+ };
+
+This represents a device with two IIO inputs, named "vcc" and "vdd".
+The vcc channel is connected to output 1 of the &adc device, and the
+vdd channel is connected to output 0 of the &ref device.
+
+==Example==
+
+ adc: max1139@35 {
+ compatible = "maxim,max1139";
+ reg = <0x35>;
+ #io-channel-cells = <1>;
+ };
+
+ ...
+
+ iio-hwmon {
+ compatible = "iio-hwmon";
+ io-channels = <&adc 0>, <&adc 1>, <&adc 2>,
+ <&adc 3>, <&adc 4>, <&adc 5>,
+ <&adc 6>, <&adc 7>, <&adc 8>,
+ <&adc 9>;
+ };
+
+ some_consumer {
+ compatible = "some-consumer";
+ io-channels = <&adc 10>, <&adc 11>;
+ io-channel-names = "adc1", "adc2";
+ };
diff --git a/Documentation/devicetree/bindings/iio/impedance-analyzer/ad5933.txt b/Documentation/devicetree/bindings/iio/impedance-analyzer/ad5933.txt
new file mode 100644
index 000000000..5ff38728f
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/impedance-analyzer/ad5933.txt
@@ -0,0 +1,26 @@
+Analog Devices AD5933/AD5934 Impedance Converter, Network Analyzer
+
+https://www.analog.com/media/en/technical-documentation/data-sheets/AD5933.pdf
+https://www.analog.com/media/en/technical-documentation/data-sheets/AD5934.pdf
+
+Required properties:
+ - compatible : should be one of
+ "adi,ad5933"
+ "adi,ad5934"
+ - reg : the I2C address.
+ - vdd-supply : The regulator supply for DVDD, AVDD1 and AVDD2 when they
+ are connected together.
+
+Optional properties:
+- clocks : external clock reference.
+- clock-names : must be "mclk" if clocks is set.
+
+Example for a I2C device node:
+
+ impedance-analyzer@0d {
+ compatible = "adi,adxl345";
+ reg = <0x0d>;
+ vdd-supply = <&vdd_supply>;
+ clocks = <&ref_clk>;
+ clock-names = "mclk";
+ };
diff --git a/Documentation/devicetree/bindings/iio/imu/adi,adis16460.yaml b/Documentation/devicetree/bindings/iio/imu/adi,adis16460.yaml
new file mode 100644
index 000000000..340be256f
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/imu/adi,adis16460.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/imu/adi,adis16460.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices ADIS16460 and similar IMUs
+
+maintainers:
+ - Dragos Bogdan <dragos.bogdan@analog.com>
+
+description: |
+ Analog Devices ADIS16460 and similar IMUs
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ADIS16460.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,adis16460
+
+ reg:
+ maxItems: 1
+
+ spi-cpha: true
+
+ spi-cpol: true
+
+ spi-max-frequency: true
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ spi0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ imu@0 {
+ compatible = "adi,adis16460";
+ reg = <0>;
+ spi-max-frequency = <5000000>;
+ spi-cpol;
+ spi-cpha;
+ interrupt-parent = <&gpio0>;
+ interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/imu/adi,adis16475.yaml b/Documentation/devicetree/bindings/iio/imu/adi,adis16475.yaml
new file mode 100644
index 000000000..79fba1508
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/imu/adi,adis16475.yaml
@@ -0,0 +1,138 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/imu/adi,adis16475.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices ADIS16475 and similar IMUs
+
+maintainers:
+ - Nuno Sá <nuno.sa@analog.com>
+
+description: |
+ Analog Devices ADIS16475 and similar IMUs
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ADIS16475.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,adis16475-1
+ - adi,adis16475-2
+ - adi,adis16475-3
+ - adi,adis16477-1
+ - adi,adis16477-2
+ - adi,adis16477-3
+ - adi,adis16470
+ - adi,adis16465-1
+ - adi,adis16465-2
+ - adi,adis16465-3
+ - adi,adis16467-1
+ - adi,adis16467-2
+ - adi,adis16467-3
+ - adi,adis16500
+ - adi,adis16505-1
+ - adi,adis16505-2
+ - adi,adis16505-3
+ - adi,adis16507-1
+ - adi,adis16507-2
+ - adi,adis16507-3
+
+ reg:
+ maxItems: 1
+
+ spi-cpha: true
+
+ spi-cpol: true
+
+ spi-max-frequency:
+ maximum: 2000000
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ reset-gpios:
+ description:
+ Must be the device tree identifier of 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.
+ maxItems: 1
+
+ adi,sync-mode:
+ description:
+ Configures the device SYNC pin. The following modes are supported
+ 0 - output_sync
+ 1 - direct_sync
+ 2 - scaled_sync
+ 3 - pulse_sync
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 3
+
+ adi,scaled-output-hz:
+ description:
+ This property must be present if the clock mode is scaled-sync through
+ clock-names property. In this mode, the input clock can have a range
+ of 1Hz to 128HZ which must be scaled to originate an allowable sample
+ rate. This property specifies that rate.
+ minimum: 1900
+ maximum: 2100
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - spi-cpha
+ - spi-cpol
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - adi,adis16500
+ - adi,adis16505-1
+ - adi,adis16505-2
+ - adi,adis16505-3
+ - adi,adis16507-1
+ - adi,adis16507-2
+ - adi,adis16507-3
+
+ then:
+ properties:
+ adi,sync-mode:
+ minimum: 0
+ maximum: 2
+
+ - if:
+ properties:
+ adi,sync-mode:
+ enum: [1, 2, 3]
+
+ then:
+ dependencies:
+ adi,sync-mode: [ clocks ]
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adis16475: adis16475-3@0 {
+ compatible = "adi,adis16475-3";
+ reg = <0>;
+ spi-cpha;
+ spi-cpol;
+ spi-max-frequency = <2000000>;
+ interrupts = <4 IRQ_TYPE_EDGE_RISING>;
+ interrupt-parent = <&gpio>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/imu/adi,adis16480.txt b/Documentation/devicetree/bindings/iio/imu/adi,adis16480.txt
new file mode 100644
index 000000000..cd903a1d8
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/imu/adi,adis16480.txt
@@ -0,0 +1,86 @@
+
+Analog Devices ADIS16480 and similar IMUs
+
+Required properties for the ADIS16480:
+
+- compatible: Must be one of
+ * "adi,adis16375"
+ * "adi,adis16480"
+ * "adi,adis16485"
+ * "adi,adis16488"
+ * "adi,adis16490"
+ * "adi,adis16495-1"
+ * "adi,adis16495-2"
+ * "adi,adis16495-3"
+ * "adi,adis16497-1"
+ * "adi,adis16497-2"
+ * "adi,adis16497-3"
+- 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
+- spi-cpol: See Documentation/devicetree/bindings/spi/spi-bus.txt
+- interrupts: interrupt mapping for IRQ, accepted values are:
+ * IRQF_TRIGGER_RISING
+ * IRQF_TRIGGER_FALLING
+
+Optional properties:
+
+- interrupt-names: Data ready line selection. Valid values are:
+ * DIO1
+ * DIO2
+ * DIO3
+ * DIO4
+ If this field is left empty, DIO1 is assigned as default data ready
+ signal.
+- reset-gpios: must be the device tree identifier of the RESET pin. As the line
+ is active low, it should be marked GPIO_ACTIVE_LOW.
+- clocks: phandle to the external clock. Should be set according to
+ "clock-names".
+ If this field is left empty together with the "clock-names" field, then
+ the internal clock is used.
+- clock-names: The name of the external clock to be used. Valid values are:
+ * sync: In sync mode, the internal clock is disabled and the frequency
+ of the external clock signal establishes therate of data
+ collection and processing. See Fig 14 and 15 in the datasheet.
+ The clock-frequency must be:
+ * 3000 to 4500 Hz for adis1649x devices.
+ * 700 to 2400 Hz for adis1648x devices.
+ * pps: In Pulse Per Second (PPS) Mode, the rate of data collection and
+ production is equal to the product of the external clock
+ frequency and the scale factor in the SYNC_SCALE register, see
+ Table 154 in the datasheet.
+ The clock-frequency must be:
+ * 1 to 128 Hz for adis1649x devices.
+ * This mode is not supported by adis1648x devices.
+ If this field is left empty together with the "clocks" field, then the
+ internal clock is used.
+- adi,ext-clk-pin: The DIOx line to be used as an external clock input.
+ Valid values are:
+ * DIO1
+ * DIO2
+ * DIO3
+ * DIO4
+ Each DIOx pin supports only one function at a time (data ready line
+ selection or external clock input). When a single pin has two
+ two assignments, the enable bit for the lower priority function
+ automatically resets to zero (disabling the lower priority function).
+ Data ready has highest priority.
+ If this field is left empty, DIO2 is assigned as default external clock
+ input pin.
+
+Example:
+
+ imu@0 {
+ compatible = "adi,adis16495-1";
+ reg = <0>;
+ spi-max-frequency = <3200000>;
+ spi-cpol;
+ spi-cpha;
+ interrupts = <25 IRQF_TRIGGER_FALLING>;
+ interrupt-parent = <&gpio>;
+ interrupt-names = "DIO2";
+ clocks = <&adis16495_sync>;
+ clock-names = "sync";
+ adi,ext-clk-pin = "DIO1";
+ };
diff --git a/Documentation/devicetree/bindings/iio/imu/bosch,bmi160.yaml b/Documentation/devicetree/bindings/iio/imu/bosch,bmi160.yaml
new file mode 100644
index 000000000..6e73cd889
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/imu/bosch,bmi160.yaml
@@ -0,0 +1,93 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/imu/bosch,bmi160.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Bosch BMI160
+
+maintainers:
+ - Jonathan Cameron <jic23@kernel.org>
+
+description: |
+ Inertial Measurement Unit with Accelerometer, Gyroscope and externally
+ connectable Magnetometer
+ https://www.bosch-sensortec.com/bst/products/all_products/bmi160
+
+properties:
+ compatible:
+ const: bosch,bmi160
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ interrupt-names:
+ enum:
+ - INT1
+ - INT2
+ description: |
+ set to "INT1" if INT1 pin should be used as interrupt input, set
+ to "INT2" if INT2 pin should be used instead
+
+ drive-open-drain:
+ description: |
+ set if the specified interrupt pin should be configured as
+ open drain. If not set, defaults to push-pull.
+
+ vdd-supply:
+ description: provide VDD power to the sensor.
+
+ vddio-supply:
+ description: provide VDD IO power to the sensor.
+
+ mount-matrix:
+ description: an optional 3x3 mounting rotation matrix
+
+ spi-max-frequency: true
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ // Example for I2C
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ bmi160@68 {
+ compatible = "bosch,bmi160";
+ reg = <0x68>;
+ vdd-supply = <&pm8916_l17>;
+ vddio-supply = <&pm8916_l6>;
+ interrupt-parent = <&gpio4>;
+ interrupts = <12 IRQ_TYPE_EDGE_RISING>;
+ interrupt-names = "INT1";
+ mount-matrix = "0", "1", "0",
+ "-1", "0", "0",
+ "0", "0", "1";
+ };
+ };
+ - |
+ // Example for SPI
+ #include <dt-bindings/interrupt-controller/irq.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ bmi160@0 {
+ compatible = "bosch,bmi160";
+ reg = <0>;
+ spi-max-frequency = <10000000>;
+ interrupt-parent = <&gpio2>;
+ interrupts = <12 IRQ_TYPE_EDGE_RISING>;
+ interrupt-names = "INT2";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/imu/inv_mpu6050.txt b/Documentation/devicetree/bindings/iio/imu/inv_mpu6050.txt
new file mode 100644
index 000000000..f2f64749e
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/imu/inv_mpu6050.txt
@@ -0,0 +1,67 @@
+InvenSense MPU-6050 Six-Axis (Gyro + Accelerometer) MEMS MotionTracking Device
+
+http://www.invensense.com/mems/gyro/mpu6050.html
+
+Required properties:
+ - compatible : should be one of
+ "invensense,mpu6000"
+ "invensense,mpu6050"
+ "invensense,mpu6500"
+ "invensense,mpu6515"
+ "invensense,mpu9150"
+ "invensense,mpu9250"
+ "invensense,mpu9255"
+ "invensense,icm20608"
+ "invensense,icm20609"
+ "invensense,icm20689"
+ "invensense,icm20602"
+ "invensense,icm20690"
+ "invensense,iam20680"
+ - reg : the I2C address of the sensor
+ - interrupts: interrupt mapping for IRQ. It should be configured with flags
+ IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_EDGE_RISING, IRQ_TYPE_LEVEL_LOW or
+ IRQ_TYPE_EDGE_FALLING.
+
+ Refer to interrupt-controller/interrupts.txt for generic interrupt client node
+ bindings.
+
+Optional properties:
+ - vdd-supply: regulator phandle for VDD supply
+ - vddio-supply: regulator phandle for VDDIO supply
+ - mount-matrix: an optional 3x3 mounting rotation matrix
+ - i2c-gate node. These devices also support an auxiliary i2c bus. This is
+ simple enough to be described using the i2c-gate binding. See
+ i2c/i2c-gate.txt for more details.
+
+Example:
+ mpu6050@68 {
+ compatible = "invensense,mpu6050";
+ reg = <0x68>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <18 IRQ_TYPE_EDGE_RISING>;
+ mount-matrix = "-0.984807753012208", /* x0 */
+ "0", /* y0 */
+ "-0.173648177666930", /* z0 */
+ "0", /* x1 */
+ "-1", /* y1 */
+ "0", /* z1 */
+ "-0.173648177666930", /* x2 */
+ "0", /* y2 */
+ "0.984807753012208"; /* z2 */
+ };
+
+
+ mpu9250@68 {
+ compatible = "invensense,mpu9250";
+ reg = <0x68>;
+ interrupt-parent = <&gpio3>;
+ interrupts = <21 IRQ_TYPE_LEVEL_HIGH>;
+ i2c-gate {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ ax8975@c {
+ compatible = "ak,ak8975";
+ reg = <0x0c>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/imu/invensense,icm42600.yaml b/Documentation/devicetree/bindings/iio/imu/invensense,icm42600.yaml
new file mode 100644
index 000000000..4c1c083d0
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/imu/invensense,icm42600.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/imu/invensense,icm42600.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: InvenSense ICM-426xx Inertial Measurement Unit
+
+maintainers:
+ - Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
+
+description: |
+ 6-axis MotionTracking device that combines a 3-axis gyroscope and a 3-axis
+ accelerometer.
+
+ It has a configurable host interface that supports I3C, I2C and SPI serial
+ communication, features a 2kB FIFO and 2 programmable interrupts with
+ ultra-low-power wake-on-motion support to minimize system power consumption.
+
+ Other industry-leading features include InvenSense on-chip APEX Motion
+ Processing engine for gesture recognition, activity classification, and
+ pedometer, along with programmable digital filters, and an embedded
+ temperature sensor.
+
+ https://invensense.tdk.com/wp-content/uploads/2020/03/DS-000292-ICM-42605-v1.4.pdf
+
+properties:
+ compatible:
+ enum:
+ - invensense,icm42600
+ - invensense,icm42602
+ - invensense,icm42605
+ - invensense,icm42622
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ drive-open-drain:
+ type: boolean
+
+ vdd-supply:
+ description: Regulator that provides power to the sensor
+
+ vddio-supply:
+ description: Regulator that provides power to the bus
+
+ spi-max-frequency: true
+ spi-cpha: true
+ spi-cpol: true
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ icm42605@68 {
+ compatible = "invensense,icm42605";
+ reg = <0x68>;
+ interrupt-parent = <&gpio2>;
+ interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+ vdd-supply = <&vdd>;
+ vddio-supply = <&vddio>;
+ };
+ };
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ spi0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ icm42602@0 {
+ compatible = "invensense,icm42602";
+ reg = <0>;
+ spi-max-frequency = <24000000>;
+ spi-cpha;
+ spi-cpol;
+ interrupt-parent = <&gpio1>;
+ interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
+ vdd-supply = <&vdd>;
+ vddio-supply = <&vddio>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/imu/nxp,fxos8700.yaml b/Documentation/devicetree/bindings/iio/imu/nxp,fxos8700.yaml
new file mode 100644
index 000000000..479e7065d
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/imu/nxp,fxos8700.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/imu/nxp,fxos8700.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale FXOS8700 Inertial Measurement Unit
+
+maintainers:
+ - Robert Jones <rjones@gateworks.com>
+
+description: |
+ Accelerometer and magnetometer combo device with an i2c and SPI interface.
+ https://www.nxp.com/products/sensors/motion-sensors/6-axis/digital-motion-sensor-3d-accelerometer-2g-4g-8g-plus-3d-magnetometer:FXOS8700CQ
+
+properties:
+ compatible:
+ enum:
+ - nxp,fxos8700
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ minItems: 1
+ maxItems: 2
+
+ interrupt-names:
+ minItems: 1
+ maxItems: 2
+ items:
+ enum:
+ - INT1
+ - INT2
+
+ drive-open-drain:
+ type: boolean
+
+ spi-max-frequency: true
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ fxos8700@1e {
+ compatible = "nxp,fxos8700";
+ reg = <0x1e>;
+
+ interrupt-parent = <&gpio2>;
+ interrupts = <7 IRQ_TYPE_EDGE_RISING>;
+ interrupt-names = "INT1";
+ };
+ };
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ spi0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ fxos8700@0 {
+ compatible = "nxp,fxos8700";
+ reg = <0>;
+
+ spi-max-frequency = <1000000>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <7 IRQ_TYPE_EDGE_RISING>;
+ interrupt-names = "INT2";
+ };
+ };
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 000000000..cef4bc16f
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/imu/st_lsm6dsx.txt
@@ -0,0 +1,48 @@
+* ST_LSM6DSx driver for STM 6-axis (acc + gyro) imu Mems sensors
+
+Required properties:
+- compatible: must be one of:
+ "st,lsm6ds3"
+ "st,lsm6ds3h"
+ "st,lsm6dsl"
+ "st,lsm6dsm"
+ "st,ism330dlc"
+ "st,lsm6dso"
+ "st,asm330lhh"
+ "st,lsm6dsox"
+ "st,lsm6dsr"
+ "st,lsm6ds3tr-c"
+ "st,ism330dhcx"
+ "st,lsm9ds1-imu"
+ "st,lsm6ds0"
+ "st,lsm6dsrx"
+- reg: i2c address of the sensor / spi cs line
+
+Optional properties:
+- st,drdy-int-pin: the pin on the package that will be used to signal
+ "data ready" (valid values: 1 or 2).
+- st,pullups : enable/disable internal i2c controller pullup resistors.
+- drive-open-drain: the interrupt/data ready line will be configured
+ as open drain, which is useful if several sensors share the same
+ interrupt line. This is a boolean property.
+ (This binding is taken from pinctrl/pinctrl-bindings.txt)
+ If the requested interrupt is configured as IRQ_TYPE_LEVEL_HIGH or
+ IRQ_TYPE_EDGE_RISING a pull-down resistor is needed to drive the line
+ when it is not active, whereas a pull-up one is needed when interrupt
+ line is configured as IRQ_TYPE_LEVEL_LOW or IRQ_TYPE_EDGE_FALLING.
+- interrupts: interrupt mapping for IRQ. It should be configured with
+ flags IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_EDGE_RISING, IRQ_TYPE_LEVEL_LOW or
+ IRQ_TYPE_EDGE_FALLING.
+- wakeup-source: Enables wake up of host system on event.
+
+ 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/light/adux1020.yaml b/Documentation/devicetree/bindings/iio/light/adux1020.yaml
new file mode 100644
index 000000000..d7d14f2f1
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/adux1020.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/light/adux1020.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices ADUX1020 Photometric sensor
+
+maintainers:
+ - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+
+description: |
+ Photometric sensor over an i2c interface.
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ADUX1020.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,adux1020
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adux1020@64 {
+ compatible = "adi,adux1020";
+ reg = <0x64>;
+ interrupt-parent = <&msmgpio>;
+ interrupts = <24 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/light/ams,as73211.yaml b/Documentation/devicetree/bindings/iio/light/ams,as73211.yaml
new file mode 100644
index 000000000..0e8cd0275
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/ams,as73211.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/light/ams,as73211.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AMS AS73211 JENCOLOR(R) Digital XYZ Sensor
+
+maintainers:
+ - Christian Eggers <ceggers@arri.de>
+
+description: |
+ XYZ True Color Sensor with I2C Interface
+ https://ams.com/documents/20143/36005/AS73211_DS000556_3-01.pdf/a65474c0-b302-c2fd-e30a-c98df87616df
+
+properties:
+ compatible:
+ enum:
+ - ams,as73211
+
+ reg:
+ description:
+ I2C address of the device (0x74...0x77).
+ maxItems: 1
+
+ interrupts:
+ description:
+ Interrupt specifier for the READY interrupt generated by the device.
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ as73211@74 {
+ compatible = "ams,as73211";
+ reg = <0x74>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_color_sensor>;
+ interrupt-parent = <&gpio2>;
+ interrupts = <19 IRQ_TYPE_EDGE_RISING>; /* READY */
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/light/amstaos,tsl2563.yaml b/Documentation/devicetree/bindings/iio/light/amstaos,tsl2563.yaml
new file mode 100644
index 000000000..60e76bc03
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/amstaos,tsl2563.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/light/amstaos,tsl2563.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AMS TAOS TSL2563 ambient light sensor
+
+maintainers:
+ - Sebastian Reichel <sre@kernel.org>
+
+description: |
+ Ambient light sensor with an i2c interface.
+
+properties:
+ compatible:
+ enum:
+ - amstaos,tsl2560
+ - amstaos,tsl2561
+ - amstaos,tsl2562
+ - amstaos,tsl2563
+
+ reg:
+ maxItems: 1
+
+ amstaos,cover-comp-gain:
+ description: Multiplier for gain compensation
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [1, 16]
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ light-sensor@29 {
+ compatible = "amstaos,tsl2563";
+ reg = <0x29>;
+ amstaos,cover-comp-gain = <16>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/light/apds9300.txt b/Documentation/devicetree/bindings/iio/light/apds9300.txt
new file mode 100644
index 000000000..3aa6db3ee
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/apds9300.txt
@@ -0,0 +1,21 @@
+* Avago APDS9300 ambient light sensor
+
+https://www.avagotech.com/docs/AV02-1077EN
+
+Required properties:
+
+ - compatible : should be "avago,apds9300"
+ - reg : the I2C address of the sensor
+
+Optional properties:
+
+ - interrupts : interrupt mapping for GPIO IRQ
+
+Example:
+
+apds9300@39 {
+ compatible = "avago,apds9300";
+ reg = <0x39>;
+ interrupt-parent = <&gpio2>;
+ interrupts = <29 8>;
+};
diff --git a/Documentation/devicetree/bindings/iio/light/apds9960.txt b/Documentation/devicetree/bindings/iio/light/apds9960.txt
new file mode 100644
index 000000000..c53ddb81c
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/apds9960.txt
@@ -0,0 +1,21 @@
+* Avago APDS9960 gesture/RGB/ALS/proximity sensor
+
+https://www.avagotech.com/docs/AV02-4191EN
+
+Required properties:
+
+ - compatible: must be "avago,apds9960"
+ - reg: the I2c address of the sensor
+ - interrupts : the sole interrupt generated by the device
+
+ Refer to interrupt-controller/interrupts.txt for generic interrupt client
+ node bindings.
+
+Example:
+
+apds9960@39 {
+ compatible = "avago,apds9960";
+ reg = <0x39>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <16 1>;
+};
diff --git a/Documentation/devicetree/bindings/iio/light/bh1750.yaml b/Documentation/devicetree/bindings/iio/light/bh1750.yaml
new file mode 100644
index 000000000..1a88b3c25
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/bh1750.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/light/bh1750.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ROHM BH1750 ambient light sensor
+
+maintainers:
+ - Tomasz Duszynski <tduszyns@gmail.com>
+
+description: |
+ Ambient light sensor with an i2c interface.
+
+properties:
+ compatible:
+ enum:
+ - rohm,bh1710
+ - rohm,bh1715
+ - rohm,bh1721
+ - rohm,bh1750
+ - rohm,bh1751
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ light-sensor@23 {
+ compatible = "rohm,bh1750";
+ reg = <0x23>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/iio/light/cm3605.txt b/Documentation/devicetree/bindings/iio/light/cm3605.txt
new file mode 100644
index 000000000..56331a79f
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/cm3605.txt
@@ -0,0 +1,41 @@
+Capella Microsystems CM3605
+Ambient Light and Short Distance Proximity Sensor
+
+The CM3605 is an entirely analog part which however require quite a bit of
+software logic to interface a host operating system.
+
+This ALS and proximity sensor was one of the very first deployed in mobile
+handsets, notably it is used in the very first Nexus One Android phone from
+2010.
+
+Required properties:
+- compatible: must be: "capella,cm3605"
+- aset-gpios: GPIO line controlling the ASET line (drive low
+ to activate the ALS, should be flagged GPIO_ACTIVE_LOW)
+- interrupts: the IRQ line (such as a GPIO) that is connected to
+ the POUT (proximity sensor out) line. The edge detection must
+ be set to IRQ_TYPE_EDGE_BOTH so as to detect movements toward
+ and away from the proximity sensor.
+- io-channels: the ADC channel used for converting the voltage from
+ AOUT to a digital representation.
+- io-channel-names: must be "aout"
+
+Optional properties:
+- vdd-supply: regulator supplying VDD power to the component.
+- capella,aset-resistance-ohms: the sensitivity calibration resistance,
+ in Ohms. Valid values are: 50000, 100000, 300000 and 600000,
+ as these are the resistance values that we are supplied with
+ calibration curves for. If not supplied, 100 kOhm will be assumed
+ but it is strongly recommended to supply this.
+
+Example:
+
+cm3605 {
+ compatible = "capella,cm3605";
+ vdd-supply = <&foo_reg>;
+ aset-gpios = <&foo_gpio 1 GPIO_ACTIVE_LOW>;
+ capella,aset-resistance-ohms = <100000>;
+ interrupts = <1 IRQ_TYPE_EDGE_BOTH>;
+ io-channels = <&adc 0x01>;
+ io-channel-names = "aout";
+};
diff --git a/Documentation/devicetree/bindings/iio/light/cm36651.txt b/Documentation/devicetree/bindings/iio/light/cm36651.txt
new file mode 100644
index 000000000..c03e19db4
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/cm36651.txt
@@ -0,0 +1,26 @@
+* Capella CM36651 I2C Proximity and Color Light sensor
+
+Required properties:
+- compatible: must be "capella,cm36651"
+- reg: the I2C address of the device
+- interrupts: interrupt-specifier for the sole interrupt
+ generated by the device
+- vled-supply: regulator for the IR LED. IR_LED is a part
+ of the cm36651 for proximity detection.
+ As covered in ../../regulator/regulator.txt
+
+Example:
+
+ i2c_cm36651: i2c-gpio {
+ /* ... */
+
+ cm36651@18 {
+ compatible = "capella,cm36651";
+ reg = <0x18>;
+ interrupt-parent = <&gpx0>;
+ interrupts = <2 0>;
+ vled-supply = <&ps_als_reg>;
+ };
+
+ /* ... */
+ };
diff --git a/Documentation/devicetree/bindings/iio/light/dynaimage,al3010.yaml b/Documentation/devicetree/bindings/iio/light/dynaimage,al3010.yaml
new file mode 100644
index 000000000..a3a979553
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/dynaimage,al3010.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/light/dynaimage,al3010.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Dyna-Image AL3010 sensor
+
+maintainers:
+ - David Heidelberg <david@ixit.cz>
+
+properties:
+ compatible:
+ const: dynaimage,al3010
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ vdd-supply:
+ description: Regulator that provides power to the sensor
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ light-sensor@1c {
+ compatible = "dynaimage,al3010";
+ reg = <0x1c>;
+ vdd-supply = <&vdd_reg>;
+ interrupts = <0 99 4>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/light/dynaimage,al3320a.yaml b/Documentation/devicetree/bindings/iio/light/dynaimage,al3320a.yaml
new file mode 100644
index 000000000..8249be99c
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/dynaimage,al3320a.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/light/dynaimage,al3320a.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Dyna-Image AL3320A sensor
+
+maintainers:
+ - David Heidelberg <david@ixit.cz>
+
+properties:
+ compatible:
+ const: dynaimage,al3320a
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ vdd-supply:
+ description: Regulator that provides power to the sensor
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ light-sensor@1c {
+ compatible = "dynaimage,al3320a";
+ reg = <0x1c>;
+ vdd-supply = <&vdd_reg>;
+ interrupts = <0 99 4>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/light/gp2ap020a00f.txt b/Documentation/devicetree/bindings/iio/light/gp2ap020a00f.txt
new file mode 100644
index 000000000..9231c8231
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/gp2ap020a00f.txt
@@ -0,0 +1,21 @@
+* Sharp GP2AP020A00F I2C Proximity/ALS sensor
+
+The proximity detector sensor requires power supply
+for its built-in led. It is also defined by this binding.
+
+Required properties:
+
+ - compatible : should be "sharp,gp2ap020a00f"
+ - reg : the I2C slave address of the light sensor
+ - interrupts : interrupt specifier for the sole interrupt generated
+ by the device
+ - vled-supply : VLED power supply, as covered in ../regulator/regulator.txt
+
+Example:
+
+gp2ap020a00f@39 {
+ compatible = "sharp,gp2ap020a00f";
+ reg = <0x39>;
+ interrupts = <2 0>;
+ vled-supply = <...>;
+};
diff --git a/Documentation/devicetree/bindings/iio/light/isl29018.yaml b/Documentation/devicetree/bindings/iio/light/isl29018.yaml
new file mode 100644
index 000000000..0ea278b07
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/isl29018.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/light/isl29018.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: |
+ Intersil 29018/29023/29035 Ambient Light, Infrared Light, and Proximity Sensor
+
+maintainers:
+ - Brian Masney <masneyb@onstation.org>
+
+description: |
+ Ambient and infrared light sensing with proximity detection over an i2c
+ interface.
+
+ https://www.renesas.com/us/en/www/doc/datasheet/isl29018.pdf
+ https://www.renesas.com/us/en/www/doc/datasheet/isl29023.pdf
+ https://www.renesas.com/us/en/www/doc/datasheet/isl29035.pdf
+
+properties:
+ compatible:
+ enum:
+ - isil,isl29018
+ - isil,isl29023
+ - isil,isl29035
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ vcc-supply:
+ description: Regulator that provides power to the sensor
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ sensor@44 {
+ compatible = "isil,isl29018";
+ reg = <0x44>;
+ interrupts-extended = <&msmgpio 61 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/light/max44009.txt b/Documentation/devicetree/bindings/iio/light/max44009.txt
new file mode 100644
index 000000000..4a98848e3
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/max44009.txt
@@ -0,0 +1,24 @@
+* MAX44009 Ambient Light Sensor
+
+Required properties:
+
+- compatible: should be "maxim,max44009"
+- reg: the I2C address of the device (default is <0x4a>)
+
+Optional properties:
+
+- interrupts: interrupt mapping for GPIO IRQ. Should be configured with
+ IRQ_TYPE_EDGE_FALLING.
+
+Refer to interrupt-controller/interrupts.txt for generic interrupt client
+node bindings.
+
+Example:
+
+light-sensor@4a {
+ compatible = "maxim,max44009";
+ reg = <0x4a>;
+
+ interrupt-parent = <&gpio1>;
+ interrupts = <17 IRQ_TYPE_EDGE_FALLING>;
+};
diff --git a/Documentation/devicetree/bindings/iio/light/noa1305.yaml b/Documentation/devicetree/bindings/iio/light/noa1305.yaml
new file mode 100644
index 000000000..fe7bfe1ad
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/noa1305.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/light/noa1305.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ON Semiconductor NOA1305 Ambient Light Sensor
+
+maintainers:
+ - Martyn Welch <martyn.welch@collabora.com>
+
+description: |
+ Ambient sensing with an i2c interface.
+
+ https://www.onsemi.com/pub/Collateral/NOA1305-D.PDF
+
+properties:
+ compatible:
+ enum:
+ - onnn,noa1305
+
+ reg:
+ maxItems: 1
+
+ vin-supply:
+ description: Regulator that provides power to the sensor
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ light@39 {
+ compatible = "onnn,noa1305";
+ reg = <0x39>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/light/opt3001.txt b/Documentation/devicetree/bindings/iio/light/opt3001.txt
new file mode 100644
index 000000000..9e6f2998e
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/opt3001.txt
@@ -0,0 +1,25 @@
+* Texas Instruments OPT3001 Ambient Light Sensor
+
+The driver supports interrupt-driven and interrupt-less operation, depending
+on whether an interrupt property has been populated into the DT. Note that
+the optional generation of IIO events on rising/falling light threshold changes
+requires the use of interrupts. Without interrupts, only the simple reading
+of the current light value is supported through the IIO API.
+
+https://www.ti.com/product/opt3001
+
+Required properties:
+ - compatible: should be "ti,opt3001"
+ - reg: the I2C address of the sensor
+
+Optional properties:
+ - interrupts: interrupt mapping for GPIO IRQ (configure for falling edge)
+
+Example:
+
+opt3001@44 {
+ compatible = "ti,opt3001";
+ reg = <0x44>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <28 IRQ_TYPE_EDGE_FALLING>;
+};
diff --git a/Documentation/devicetree/bindings/iio/light/renesas,isl29501.txt b/Documentation/devicetree/bindings/iio/light/renesas,isl29501.txt
new file mode 100644
index 000000000..46957997f
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/renesas,isl29501.txt
@@ -0,0 +1,13 @@
+* ISL29501 Time-of-flight sensor.
+
+Required properties:
+
+ - compatible : should be "renesas,isl29501"
+ - reg : the I2C address of the sensor
+
+Example:
+
+isl29501@57 {
+ compatible = "renesas,isl29501";
+ reg = <0x57>;
+};
diff --git a/Documentation/devicetree/bindings/iio/light/sharp,gp2ap002.yaml b/Documentation/devicetree/bindings/iio/light/sharp,gp2ap002.yaml
new file mode 100644
index 000000000..f8a932be0
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/sharp,gp2ap002.yaml
@@ -0,0 +1,87 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/light/sharp,gp2ap002.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sharp GP2AP002A00F and GP2AP002S00F proximity and ambient light sensors
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+description: |
+ Proximity and ambient light sensor with IR LED for the proximity
+ sensing and an analog output for light intensity. The ambient light
+ sensor output is not available on the GP2AP002S00F variant.
+
+properties:
+ compatible:
+ enum:
+ - sharp,gp2ap002a00f
+ - sharp,gp2ap002s00f
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+ description: an interrupt for proximity, usually a GPIO line
+
+ vdd-supply:
+ description: VDD power supply a phandle to a regulator
+
+ vio-supply:
+ description: VIO power supply a phandle to a regulator
+
+ io-channels:
+ maxItems: 1
+ description: ALSOUT ADC channel to read the ambient light
+
+ io-channel-names:
+ const: alsout
+
+ sharp,proximity-far-hysteresis:
+ $ref: /schemas/types.yaml#/definitions/uint8
+ description: |
+ Hysteresis setting for "far" object detection, this setting is
+ device-unique and adjust the optical setting for proximity detection
+ of a "far away" object in front of the sensor.
+
+ sharp,proximity-close-hysteresis:
+ $ref: /schemas/types.yaml#/definitions/uint8
+ description: |
+ Hysteresis setting for "close" object detection, this setting is
+ device-unique and adjust the optical setting for proximity detection
+ of a "close" object in front of the sensor.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - sharp,proximity-far-hysteresis
+ - sharp,proximity-close-hysteresis
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ light-sensor@44 {
+ compatible = "sharp,gp2ap002a00f";
+ reg = <0x44>;
+ interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
+ vdd-supply = <&vdd_regulator>;
+ vio-supply = <&vio_regulator>;
+ io-channels = <&adc_channel>;
+ io-channel-names = "alsout";
+ sharp,proximity-far-hysteresis = /bits/ 8 <0x2f>;
+ sharp,proximity-close-hysteresis = /bits/ 8 <0x0f>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/iio/light/stk33xx.yaml b/Documentation/devicetree/bindings/iio/light/stk33xx.yaml
new file mode 100644
index 000000000..f92bf7b2b
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/stk33xx.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/light/stk33xx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: |
+ Sensortek STK33xx I2C Ambient Light and Proximity sensor
+
+maintainers:
+ - Jonathan Cameron <jic23@kernel.org>
+
+description: |
+ Ambient light and proximity sensor over an i2c interface.
+
+properties:
+ compatible:
+ enum:
+ - sensortek,stk3310
+ - sensortek,stk3311
+ - sensortek,stk3335
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ stk3310@48 {
+ compatible = "sensortek,stk3310";
+ reg = <0x48>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/light/tsl2583.yaml b/Documentation/devicetree/bindings/iio/light/tsl2583.yaml
new file mode 100644
index 000000000..7b92ba8cb
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/tsl2583.yaml
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/light/tsl2583.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AMS/TAOS Ambient Light Sensor (ALS)
+
+maintainers:
+ - Brian Masney <masneyb@onstation.org>
+
+description: |
+ Ambient light sensing with an i2c interface.
+
+properties:
+ compatible:
+ enum:
+ - amstaos,tsl2580
+ - amstaos,tsl2581
+ - amstaos,tsl2583
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ vcc-supply:
+ description: Regulator that provides power to the sensor
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ light-sensor@29 {
+ compatible = "amstaos,tsl2581";
+ reg = <0x29>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/light/tsl2772.yaml b/Documentation/devicetree/bindings/iio/light/tsl2772.yaml
new file mode 100644
index 000000000..d81229857
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/tsl2772.yaml
@@ -0,0 +1,84 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/light/tsl2772.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AMS/TAOS Ambient Light Sensor (ALS) and Proximity Detector
+
+maintainers:
+ - Brian Masney <masneyb@onstation.org>
+
+description: |
+ Ambient light sensing and proximity detection with an i2c interface.
+ https://ams.com/documents/20143/36005/TSL2772_DS000181_2-00.pdf
+
+properties:
+ compatible:
+ enum:
+ - amstaos,tsl2571
+ - amstaos,tsl2671
+ - amstaos,tmd2671
+ - amstaos,tsl2771
+ - amstaos,tmd2771
+ - amstaos,tsl2572
+ - amstaos,tsl2672
+ - amstaos,tmd2672
+ - amstaos,tsl2772
+ - amstaos,tmd2772
+ - avago,apds9930
+
+ reg:
+ maxItems: 1
+
+ amstaos,proximity-diodes:
+ description: Proximity diodes to enable
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 1
+ maxItems: 2
+ items:
+ minimum: 0
+ maximum: 1
+
+ interrupts:
+ maxItems: 1
+
+ led-max-microamp:
+ description: Current for the proximity LED
+ enum:
+ - 13000
+ - 25000
+ - 50000
+ - 100000
+
+ vdd-supply:
+ description: Regulator that provides power to the sensor
+
+ vddio-supply:
+ description: Regulator that provides power to the bus
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ sensor@39 {
+ compatible = "amstaos,tsl2772";
+ reg = <0x39>;
+ interrupts-extended = <&msmgpio 61 IRQ_TYPE_EDGE_FALLING>;
+ vdd-supply = <&pm8941_l17>;
+ vddio-supply = <&pm8941_lvs1>;
+ amstaos,proximity-diodes = <0>;
+ led-max-microamp = <100000>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/light/us5182d.txt b/Documentation/devicetree/bindings/iio/light/us5182d.txt
new file mode 100644
index 000000000..a61979997
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/us5182d.txt
@@ -0,0 +1,45 @@
+* UPISEMI us5182d I2C ALS and Proximity sensor
+
+Required properties:
+- compatible: must be "upisemi,usd5182"
+- reg: the I2C address of the device
+
+Optional properties:
+- upisemi,glass-coef: glass attenuation factor - compensation factor of
+ resolution 1000 for material transmittance.
+
+- upisemi,dark-ths: array of 8 elements containing 16-bit thresholds (adc
+ counts) corresponding to every scale.
+
+- upisemi,upper-dark-gain: 8-bit dark gain compensation factor(4 int and 4
+ fractional bits - Q4.4) applied when light > threshold
+
+- upisemi,lower-dark-gain: 8-bit dark gain compensation factor(4 int and 4
+ fractional bits - Q4.4) applied when light < threshold
+
+- upisemi,continuous: This chip has two power modes: one-shot (chip takes one
+ measurement and then shuts itself down) and continuous (
+ chip takes continuous measurements). The one-shot mode is
+ more power-friendly but the continuous mode may be more
+ reliable. If this property is specified the continuous
+ mode will be used instead of the default one-shot one for
+ raw reads.
+
+If the optional properties are not specified these factors will default to the
+values in the below example.
+The glass-coef defaults to no compensation for the covering material.
+The threshold array defaults to experimental values that work with US5182D
+sensor on evaluation board - roughly between 12-32 lux.
+There will be no dark-gain compensation by default when ALS > thresh
+(0 * dark-gain), and a 1.35 compensation factor when ALS < thresh.
+
+Example:
+
+ usd5182@39 {
+ compatible = "upisemi,usd5182";
+ reg = <0x39>;
+ upisemi,glass-coef = < 1000 >;
+ upisemi,dark-ths = /bits/ 16 <170 200 512 512 800 2000 4000 8000>;
+ upisemi,upper-dark-gain = /bits/ 8 <0x00>;
+ upisemi,lower-dark-gain = /bits/ 8 <0x16>;
+ };
diff --git a/Documentation/devicetree/bindings/iio/light/uvis25.txt b/Documentation/devicetree/bindings/iio/light/uvis25.txt
new file mode 100644
index 000000000..043c139d9
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/uvis25.txt
@@ -0,0 +1,22 @@
+* ST UVIS25 uv sensor
+
+Required properties:
+- compatible: should be "st,uvis25"
+- reg: i2c address of the sensor / spi cs line
+
+Optional properties:
+- interrupts: interrupt mapping for IRQ. It should be configured with
+ flags IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_EDGE_RISING, IRQ_TYPE_LEVEL_LOW or
+ IRQ_TYPE_EDGE_FALLING.
+
+ Refer to interrupt-controller/interrupts.txt for generic interrupt
+ client node bindings.
+
+Example:
+
+uvis25@47 {
+ compatible = "st,uvis25";
+ reg = <0x47>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <0 IRQ_TYPE_EDGE_RISING>;
+};
diff --git a/Documentation/devicetree/bindings/iio/light/vcnl4035.txt b/Documentation/devicetree/bindings/iio/light/vcnl4035.txt
new file mode 100644
index 000000000..c07c7f052
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/vcnl4035.txt
@@ -0,0 +1,18 @@
+VISHAY VCNL4035 - Ambient Light and proximity sensor
+
+Link to datasheet: https://www.vishay.com/docs/84251/vcnl4035x01.pdf
+
+Required properties:
+
+ -compatible: should be "vishay,vcnl4035"
+ -reg: I2C address of the sensor, should be 0x60
+ -interrupts: interrupt mapping for GPIO IRQ (level active low)
+
+Example:
+
+light-sensor@60 {
+ compatible = "vishay,vcnl4035";
+ reg = <0x60>;
+ interrupt-parent = <&gpio4>;
+ interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+};
diff --git a/Documentation/devicetree/bindings/iio/light/veml6030.yaml b/Documentation/devicetree/bindings/iio/light/veml6030.yaml
new file mode 100644
index 000000000..fb19a2d7a
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/veml6030.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: GPL-2.0+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/light/veml6030.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: VEML6030 Ambient Light Sensor (ALS)
+
+maintainers:
+ - Rishi Gupta <gupt21@gmail.com>
+
+description: |
+ Bindings for the ambient light sensor veml6030 from Vishay
+ Semiconductors over an i2c interface.
+
+ Irrespective of whether interrupt is used or not, application
+ can get the ALS and White channel reading from IIO raw interface.
+
+ If the interrupts are used, application will receive an IIO event
+ whenever configured threshold is crossed.
+
+ Specifications about the sensor can be found at:
+ https://www.vishay.com/docs/84366/veml6030.pdf
+
+properties:
+ compatible:
+ enum:
+ - vishay,veml6030
+
+ reg:
+ description:
+ I2C address of the device.
+ enum:
+ - 0x10 # ADDR pin pulled down
+ - 0x48 # ADDR pin pulled up
+
+ interrupts:
+ description:
+ interrupt mapping for IRQ. Configure with IRQ_TYPE_LEVEL_LOW.
+ Refer to interrupt-controller/interrupts.txt for generic
+ interrupt client node bindings.
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ light-sensor@10 {
+ compatible = "vishay,veml6030";
+ reg = <0x10>;
+ interrupts = <12 IRQ_TYPE_LEVEL_LOW>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml b/Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml
new file mode 100644
index 000000000..4d1a225e8
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/light/vishay,vcnl4000.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: VISHAY VCNL4000 ambient light and proximity sensor
+
+maintainers:
+ - Peter Meerwald <pmeerw@pmeerw.net>
+
+description: |
+ Ambient light sensing with proximity detection over an i2c
+ interface.
+
+allOf:
+ - $ref: ../common.yaml#
+
+properties:
+ compatible:
+ enum:
+ - vishay,vcnl4000
+ - vishay,vcnl4010
+ - vishay,vcnl4020
+ - vishay,vcnl4040
+ - vishay,vcnl4200
+
+ interrupts:
+ maxItems: 1
+
+ reg:
+ maxItems: 1
+
+ proximity-near-level: true
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ light-sensor@51 {
+ compatible = "vishay,vcnl4200";
+ reg = <0x51>;
+ proximity-near-level = <220>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/light/vl6180.txt b/Documentation/devicetree/bindings/iio/light/vl6180.txt
new file mode 100644
index 000000000..fb9137d85
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/vl6180.txt
@@ -0,0 +1,15 @@
+STMicro VL6180 - ALS, range and proximity sensor
+
+Link to datasheet: https://www.st.com/resource/en/datasheet/vl6180x.pdf
+
+Required properties:
+
+ -compatible: should be "st,vl6180"
+ -reg: the I2C address of the sensor
+
+Example:
+
+vl6180@29 {
+ compatible = "st,vl6180";
+ reg = <0x29>;
+};
diff --git a/Documentation/devicetree/bindings/iio/magnetometer/ak8974.txt b/Documentation/devicetree/bindings/iio/magnetometer/ak8974.txt
new file mode 100644
index 000000000..7f06eff3b
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/magnetometer/ak8974.txt
@@ -0,0 +1,31 @@
+* Asahi Kasei AK8974 magnetometer sensor
+
+Required properties:
+
+- compatible:
+ * "asahi-kasei,ak8974"
+ * "alps,hscdtd008a"
+- 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@f {
+ 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/Documentation/devicetree/bindings/iio/magnetometer/asahi-kasei,ak8975.yaml b/Documentation/devicetree/bindings/iio/magnetometer/asahi-kasei,ak8975.yaml
new file mode 100644
index 000000000..a25590a16
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/magnetometer/asahi-kasei,ak8975.yaml
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/magnetometer/asahi-kasei,ak8975.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AsahiKASEI AK8975 magnetometer sensor
+
+maintainers:
+ - Jonathan Albrieux <jonathan.albrieux@gmail.com>
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - asahi-kasei,ak8975
+ - asahi-kasei,ak8963
+ - asahi-kasei,ak09911
+ - asahi-kasei,ak09912
+ - enum:
+ - ak8975
+ - ak8963
+ - ak09911
+ - ak09912
+ deprecated: true
+
+ reg:
+ maxItems: 1
+
+ gpios:
+ maxItems: 1
+ description: |
+ AK8975 has a "Data ready" pin (DRDY) which informs that data
+ is ready to be read and is possible to listen on it. If used,
+ this should be active high. Prefer interrupt over this.
+
+ interrupts:
+ maxItems: 1
+ description: interrupt for DRDY pin. Triggered on rising edge.
+
+ vdd-supply:
+ description: |
+ an optional regulator that needs to be on to provide VDD power to
+ the sensor.
+
+ mount-matrix:
+ description: an optional 3x3 mounting rotation matrix.
+
+ reset-gpios:
+ description: |
+ an optional pin needed for AK09911 to set the reset state. This should
+ be usually active low
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/gpio/gpio.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ magnetometer@c {
+ compatible = "asahi-kasei,ak8975";
+ reg = <0x0c>;
+ interrupt-parent = <&gpio6>;
+ interrupts = <15 IRQ_TYPE_EDGE_RISING>;
+ vdd-supply = <&ldo_3v3_gnss>;
+ reset-gpios = <&msmgpio 111 GPIO_ACTIVE_LOW>;
+ mount-matrix = "-0.984807753012208", /* x0 */
+ "0", /* y0 */
+ "-0.173648177666930", /* z0 */
+ "0", /* x1 */
+ "-1", /* y1 */
+ "0", /* z1 */
+ "-0.173648177666930", /* x2 */
+ "0", /* y2 */
+ "0.984807753012208"; /* z2 */
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/magnetometer/bmc150_magn.txt b/Documentation/devicetree/bindings/iio/magnetometer/bmc150_magn.txt
new file mode 100644
index 000000000..22912e43b
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/magnetometer/bmc150_magn.txt
@@ -0,0 +1,25 @@
+* Bosch BMC150 magnetometer sensor
+
+http://ae-bst.resource.bosch.com/media/products/dokumente/bmc150/BST-BMC150-DS000-04.pdf
+
+Required properties:
+
+ - compatible : should be one of:
+ "bosch,bmc150_magn"
+ "bosch,bmc156_magn"
+ "bosch,bmm150"
+ "bosch,bmm150_magn" (DEPRECATED, use bosch,bmm150)
+ - reg : the I2C address of the magnetometer
+
+Optional properties:
+
+ - interrupts : interrupt mapping for GPIO IRQ
+
+Example:
+
+bmc150_magn@12 {
+ compatible = "bosch,bmc150_magn";
+ reg = <0x12>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <0 1>;
+};
diff --git a/Documentation/devicetree/bindings/iio/magnetometer/hmc5843.txt b/Documentation/devicetree/bindings/iio/magnetometer/hmc5843.txt
new file mode 100644
index 000000000..8e191eef0
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/magnetometer/hmc5843.txt
@@ -0,0 +1,21 @@
+* Honeywell HMC5843 magnetometer sensor
+
+Required properties:
+
+ - compatible : should be "honeywell,hmc5843"
+ Other models which are supported with driver are:
+ "honeywell,hmc5883"
+ "honeywell,hmc5883l"
+ "honeywell,hmc5983"
+ - reg : the I2C address of the magnetometer - typically 0x1e
+
+Optional properties:
+
+ - gpios : should be device tree identifier of the magnetometer DRDY pin
+
+Example:
+
+hmc5843@1e {
+ compatible = "honeywell,hmc5843"
+ reg = <0x1e>;
+};
diff --git a/Documentation/devicetree/bindings/iio/magnetometer/mag3110.txt b/Documentation/devicetree/bindings/iio/magnetometer/mag3110.txt
new file mode 100644
index 000000000..bdd40bcaa
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/magnetometer/mag3110.txt
@@ -0,0 +1,27 @@
+* FREESCALE MAG3110 magnetometer sensor
+
+Required properties:
+
+ - compatible : should be "fsl,mag3110"
+ - reg : the I2C address of the magnetometer
+
+Optional properties:
+
+ - interrupts: the sole interrupt generated by the device
+
+ Refer to interrupt-controller/interrupts.txt for generic interrupt client
+ node bindings.
+
+ - vdd-supply: phandle to the regulator that provides power to the sensor.
+ - vddio-supply: phandle to the regulator that provides power to the sensor's IO.
+
+Example:
+
+magnetometer@e {
+ compatible = "fsl,mag3110";
+ reg = <0x0e>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c3_mag3110_int>;
+ interrupt-parent = <&gpio3>;
+ interrupts = <16 IRQ_TYPE_EDGE_RISING>;
+};
diff --git a/Documentation/devicetree/bindings/iio/magnetometer/mmc35240.txt b/Documentation/devicetree/bindings/iio/magnetometer/mmc35240.txt
new file mode 100644
index 000000000..a01235c7f
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/magnetometer/mmc35240.txt
@@ -0,0 +1,13 @@
+* MEMSIC MMC35240 magnetometer sensor
+
+Required properties:
+
+ - compatible : should be "memsic,mmc35240"
+ - reg : the I2C address of the magnetometer
+
+Example:
+
+mmc35240@30 {
+ compatible = "memsic,mmc35240";
+ reg = <0x30>;
+};
diff --git a/Documentation/devicetree/bindings/iio/magnetometer/pni,rm3100.txt b/Documentation/devicetree/bindings/iio/magnetometer/pni,rm3100.txt
new file mode 100644
index 000000000..497c932e9
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/magnetometer/pni,rm3100.txt
@@ -0,0 +1,20 @@
+* PNI RM3100 3-axis magnetometer sensor
+
+Required properties:
+
+- compatible : should be "pni,rm3100"
+- reg : the I2C address or SPI chip select number of the sensor.
+
+Optional properties:
+
+- interrupts: data ready (DRDY) from the chip.
+ The interrupts can be triggered on level high.
+
+Example:
+
+rm3100: rm3100@20 {
+ compatible = "pni,rm3100";
+ reg = <0x20>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <4 IRQ_TYPE_LEVEL_HIGH>;
+};
diff --git a/Documentation/devicetree/bindings/iio/mount-matrix.txt b/Documentation/devicetree/bindings/iio/mount-matrix.txt
new file mode 100644
index 000000000..c3344ab50
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/mount-matrix.txt
@@ -0,0 +1,203 @@
+For discussion. Unclear are:
+* is the definition of +/- values practical or counterintuitive?
+* are the definitions unambiguous and easy to follow?
+* are the examples correct?
+* should we have HOWTO engineer a correct matrix for a new device (without comparing to a different one)?
+
+====
+
+
+Mounting matrix
+
+The mounting matrix is a device tree property used to orient any device
+that produce three-dimensional data in relation to the world where it is
+deployed.
+
+The purpose of the mounting matrix is to translate the sensor frame of
+reference into the device frame of reference using a translation matrix as
+defined in linear algebra.
+
+The typical usecase is that where a component has an internal representation
+of the (x,y,z) triplets, such as different registers to read these coordinates,
+and thus implying that the component should be mounted in a certain orientation
+relative to some specific device frame of reference.
+
+For example a device with some kind of screen, where the user is supposed to
+interact with the environment using an accelerometer, gyroscope or magnetometer
+mounted on the same chassis as this screen, will likely take the screen as
+reference to (x,y,z) orientation, with (x,y) corresponding to these axes on the
+screen and (z) being depth, the axis perpendicular to the screen.
+
+For a screen you probably want (x) coordinates to go from negative on the left
+to positive on the right, (y) from negative on the bottom to positive on top
+and (z) depth to be negative under the screen and positive in front of it,
+toward the face of the user.
+
+A sensor can be mounted in any angle along the axes relative to the frame of
+reference. This means that the sensor may be flipped upside-down, left-right,
+or tilted at any angle relative to the frame of reference.
+
+Another frame of reference is how the device with its sensor relates to the
+external world, the environment where the device is deployed. Usually the data
+from the sensor is used to figure out how the device is oriented with respect
+to this world. When using the mounting matrix, the sensor and device orientation
+becomes identical and we can focus on the data as it relates to the surrounding
+world.
+
+Device-to-world examples for some three-dimensional sensor types:
+
+- Accelerometers have their world frame of reference toward the center of
+ gravity, usually to the core of the planet. A reading of the (x,y,z) values
+ from the sensor will give a projection of the gravity vector through the
+ device relative to the center of the planet, i.e. relative to its surface at
+ this point. Up and down in the world relative to the device frame of
+ reference can thus be determined. and users would likely expect a value of
+ 9.81 m/s^2 upwards along the (z) axis, i.e. out of the screen when the device
+ is held with its screen flat on the planets surface and 0 on the other axes,
+ as the gravity vector is projected 1:1 onto the sensors (z)-axis.
+
+ If you tilt the device, the g vector virtually coming out of the display
+ is projected onto the (x,y) plane of the display panel.
+
+ Example:
+
+ ^ z: +g ^ z: > 0
+ ! /!
+ ! x=y=0 / ! x: > 0
+ +--------+ +--------+
+ ! ! ! !
+ +--------+ +--------+
+ ! /
+ ! /
+ v v
+ center of center of
+ gravity gravity
+
+
+ If the device is tilted to the left, you get a positive x value. If you point
+ its top towards surface, you get a negative y axis.
+
+ (---------)
+ ! ! y: -g
+ ! ! ^
+ ! ! !
+ ! !
+ ! ! x: +g <- z: +g -> x: -g
+ ! 1 2 3 !
+ ! 4 5 6 ! !
+ ! 7 8 9 ! v
+ ! * 0 # ! y: +g
+ (---------)
+
+
+- Magnetometers (compasses) have their world frame of reference relative to the
+ geomagnetic field. The system orientation vis-a-vis the world is defined with
+ respect to the local earth geomagnetic reference frame where (y) is in the
+ ground plane and positive towards magnetic North, (x) is in the ground plane,
+ perpendicular to the North axis and positive towards the East and (z) is
+ perpendicular to the ground plane and positive upwards.
+
+
+ ^^^ North: y > 0
+
+ (---------)
+ ! !
+ ! !
+ ! !
+ ! ! >
+ ! ! > North: x > 0
+ ! 1 2 3 ! >
+ ! 4 5 6 !
+ ! 7 8 9 !
+ ! * 0 # !
+ (---------)
+
+ Since the geomagnetic field is not uniform this definition fails if we come
+ closer to the poles.
+
+ Sensors and driver can not and should not take care of this because there
+ are complex calculations and empirical data to be taken care of. We leave
+ this up to user space.
+
+ The definition we take:
+
+ If the device is placed at the equator and the top is pointing north, the
+ display is readable by a person standing upright on the earth surface, this
+ defines a positive y value.
+
+
+- Gyroscopes detects the movement relative the device itself. The angular
+ velocity is defined as orthogonal to the plane of rotation, so if you put the
+ device on a flat surface and spin it around the z axis (such as rotating a
+ device with a screen lying flat on a table), you should get a negative value
+ along the (z) axis if rotated clockwise, and a positive value if rotated
+ counter-clockwise according to the right-hand rule.
+
+
+ (---------) y > 0
+ ! ! v---\
+ ! !
+ ! !
+ ! ! <--\
+ ! ! ! z > 0
+ ! 1 2 3 ! --/
+ ! 4 5 6 !
+ ! 7 8 9 !
+ ! * 0 # !
+ (---------)
+
+
+So unless the sensor is ideally mounted, we need a means to indicate the
+relative orientation of any given sensor of this type with respect to the
+frame of reference.
+
+To achieve this, use the device tree property "mount-matrix" for the sensor.
+
+This supplies a 3x3 rotation matrix in the strict linear algebraic sense,
+to orient the senor axes relative to a desired point of reference. This means
+the resulting values from the sensor, after scaling to proper units, should be
+multiplied by this matrix to give the proper vectors values in three-dimensional
+space, relative to the device or world point of reference.
+
+For more information, consult:
+https://en.wikipedia.org/wiki/Rotation_matrix
+
+The mounting matrix has the layout:
+
+ (mxx, myx, mzx)
+ (mxy, myy, mzy)
+ (mxz, myz, mzz)
+
+Values are intended to be multiplied as:
+
+ x' = mxx * x + myx * y + mzx * z
+ y' = mxy * x + myy * y + mzy * z
+ z' = mxz * x + myz * y + mzz * z
+
+It is represented as an array of strings containing the real values for
+producing the transformation matrix.
+
+Examples:
+
+Identity matrix (nothing happens to the coordinates, which means the device was
+mechanically mounted in an ideal way and we need no transformation):
+
+mount-matrix = "1", "0", "0",
+ "0", "1", "0",
+ "0", "0", "1";
+
+The sensor is mounted 30 degrees (Pi/6 radians) tilted along the X axis, so we
+compensate by performing a -30 degrees rotation around the X axis:
+
+mount-matrix = "1", "0", "0",
+ "0", "0.866", "0.5",
+ "0", "-0.5", "0.866";
+
+The sensor is flipped 180 degrees (Pi radians) around the Z axis, i.e. mounted
+upside-down:
+
+mount-matrix = "0.998", "0.054", "0",
+ "-0.054", "0.998", "0",
+ "0", "0", "1";
+
+???: this does not match "180 degrees" - factors indicate ca. 3 degrees compensation
diff --git a/Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.txt b/Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.txt
new file mode 100644
index 000000000..89647d714
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.txt
@@ -0,0 +1,39 @@
+I/O channel multiplexer bindings
+
+If a multiplexer is used to select which hardware signal is fed to
+e.g. an ADC channel, these bindings describe that situation.
+
+Required properties:
+- compatible : "io-channel-mux"
+- io-channels : Channel node of the parent channel that has multiplexed
+ input.
+- io-channel-names : Should be "parent".
+- #address-cells = <1>;
+- #size-cells = <0>;
+- mux-controls : Mux controller node to use for operating the mux
+- channels : List of strings, labeling the mux controller states.
+
+For each non-empty string in the channels property, an io-channel will
+be created. The number of this io-channel is the same as the index into
+the list of strings in the channels property, and also matches the mux
+controller state. The mux controller state is described in
+../mux/mux-controller.txt
+
+Example:
+ mux: mux-controller {
+ compatible = "gpio-mux";
+ #mux-control-cells = <0>;
+
+ mux-gpios = <&pioA 0 GPIO_ACTIVE_HIGH>,
+ <&pioA 1 GPIO_ACTIVE_HIGH>;
+ };
+
+ adc-mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc 0>;
+ io-channel-names = "parent";
+
+ mux-controls = <&mux>;
+
+ channels = "sync", "in", "system-regulator";
+ };
diff --git a/Documentation/devicetree/bindings/iio/potentiometer/ad5272.txt b/Documentation/devicetree/bindings/iio/potentiometer/ad5272.txt
new file mode 100644
index 000000000..f9b2eef94
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/potentiometer/ad5272.txt
@@ -0,0 +1,27 @@
+* Analog Devices AD5272 digital potentiometer
+
+The node for this device must be a child node of a I2C controller, hence
+all mandatory properties for your controller must be specified. See directory:
+
+ Documentation/devicetree/bindings/i2c
+
+for more details.
+
+Required properties:
+ - compatible: Must be one of the following, depending on the model:
+ adi,ad5272-020
+ adi,ad5272-050
+ adi,ad5272-100
+ adi,ad5274-020
+ adi,ad5274-100
+
+Optional properties:
+ - reset-gpios: GPIO specification for the RESET input. This is an
+ active low signal to the AD5272.
+
+Example:
+ad5272: potentiometer@2f {
+ reg = <0x2F>;
+ compatible = "adi,ad5272-020";
+ reset-gpios = <&gpio3 6 GPIO_ACTIVE_HIGH>;
+};
diff --git a/Documentation/devicetree/bindings/iio/potentiometer/ds1803.txt b/Documentation/devicetree/bindings/iio/potentiometer/ds1803.txt
new file mode 100644
index 000000000..df77bf552
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/potentiometer/ds1803.txt
@@ -0,0 +1,21 @@
+* Maxim Integrated DS1803 digital potentiometer driver
+
+The node for this driver must be a child node of a I2C controller, hence
+all mandatory properties for your controller must be specified. See directory:
+
+ Documentation/devicetree/bindings/i2c
+
+for more details.
+
+Required properties:
+ - compatible: Must be one of the following, depending on the
+ model:
+ "maxim,ds1803-010",
+ "maxim,ds1803-050",
+ "maxim,ds1803-100"
+
+Example:
+ds1803: ds1803@1 {
+ reg = <0x28>;
+ compatible = "maxim,ds1803-010";
+};
diff --git a/Documentation/devicetree/bindings/iio/potentiometer/max5432.yaml b/Documentation/devicetree/bindings/iio/potentiometer/max5432.yaml
new file mode 100644
index 000000000..5082f919d
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/potentiometer/max5432.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/potentiometer/max5432.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim Integrated MAX5432-MAX5435 Digital Potentiometers
+
+maintainers:
+ - Martin Kaiser <martin@kaiser.cx>
+
+description: |
+ Maxim Integrated MAX5432-MAX5435 Digital Potentiometers connected via I2C
+
+ Datasheet:
+ https://datasheets.maximintegrated.com/en/ds/MAX5432-MAX5435.pdf
+
+properties:
+ compatible:
+ enum:
+ - maxim,max5432
+ - maxim,max5433
+ - maxim,max5434
+ - maxim,max5435
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ max5434@28 {
+ compatible = "maxim,max5434";
+ reg = <0x28>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/potentiometer/max5481.txt b/Documentation/devicetree/bindings/iio/potentiometer/max5481.txt
new file mode 100644
index 000000000..6a91b106e
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/potentiometer/max5481.txt
@@ -0,0 +1,23 @@
+* Maxim Linear-Taper Digital Potentiometer MAX5481-MAX5484
+
+The node for this driver must be a child node of a SPI controller, hence
+all mandatory properties described in
+
+ Documentation/devicetree/bindings/spi/spi-bus.txt
+
+must be specified.
+
+Required properties:
+ - compatible: Must be one of the following, depending on the
+ model:
+ "maxim,max5481"
+ "maxim,max5482"
+ "maxim,max5483"
+ "maxim,max5484"
+
+Example:
+max548x: max548x@0 {
+ compatible = "maxim,max5482";
+ spi-max-frequency = <7000000>;
+ reg = <0>; /* chip-select */
+};
diff --git a/Documentation/devicetree/bindings/iio/potentiometer/mcp41010.txt b/Documentation/devicetree/bindings/iio/potentiometer/mcp41010.txt
new file mode 100644
index 000000000..4f245e846
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/potentiometer/mcp41010.txt
@@ -0,0 +1,28 @@
+* Microchip MCP41010/41050/41100/42010/42050/42100 Digital Potentiometer
+
+Datasheet publicly available at:
+https://ww1.microchip.com/downloads/en/devicedoc/11195c.pdf
+
+The node for this driver must be a child node of a SPI controller, hence
+all mandatory properties described in
+
+ Documentation/devicetree/bindings/spi/spi-bus.txt
+
+must be specified.
+
+Required properties:
+ - compatible: Must be one of the following, depending on the
+ model:
+ "microchip,mcp41010"
+ "microchip,mcp41050"
+ "microchip,mcp41100"
+ "microchip,mcp42010"
+ "microchip,mcp42050"
+ "microchip,mcp42100"
+
+Example:
+potentiometer@0 {
+ compatible = "microchip,mcp41010";
+ reg = <0>;
+ spi-max-frequency = <500000>;
+};
diff --git a/Documentation/devicetree/bindings/iio/potentiometer/mcp4131.txt b/Documentation/devicetree/bindings/iio/potentiometer/mcp4131.txt
new file mode 100644
index 000000000..3ccba16f7
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/potentiometer/mcp4131.txt
@@ -0,0 +1,84 @@
+* Microchip MCP413X/414X/415X/416X/423X/424X/425X/426X Digital Potentiometer
+ driver
+
+The node for this driver must be a child node of a SPI controller, hence
+all mandatory properties described in
+
+ Documentation/devicetree/bindings/spi/spi-bus.txt
+
+must be specified.
+
+Required properties:
+ - compatible: Must be one of the following, depending on the
+ model:
+ "microchip,mcp4131-502"
+ "microchip,mcp4131-103"
+ "microchip,mcp4131-503"
+ "microchip,mcp4131-104"
+ "microchip,mcp4132-502"
+ "microchip,mcp4132-103"
+ "microchip,mcp4132-503"
+ "microchip,mcp4132-104"
+ "microchip,mcp4141-502"
+ "microchip,mcp4141-103"
+ "microchip,mcp4141-503"
+ "microchip,mcp4141-104"
+ "microchip,mcp4142-502"
+ "microchip,mcp4142-103"
+ "microchip,mcp4142-503"
+ "microchip,mcp4142-104"
+ "microchip,mcp4151-502"
+ "microchip,mcp4151-103"
+ "microchip,mcp4151-503"
+ "microchip,mcp4151-104"
+ "microchip,mcp4152-502"
+ "microchip,mcp4152-103"
+ "microchip,mcp4152-503"
+ "microchip,mcp4152-104"
+ "microchip,mcp4161-502"
+ "microchip,mcp4161-103"
+ "microchip,mcp4161-503"
+ "microchip,mcp4161-104"
+ "microchip,mcp4162-502"
+ "microchip,mcp4162-103"
+ "microchip,mcp4162-503"
+ "microchip,mcp4162-104"
+ "microchip,mcp4231-502"
+ "microchip,mcp4231-103"
+ "microchip,mcp4231-503"
+ "microchip,mcp4231-104"
+ "microchip,mcp4232-502"
+ "microchip,mcp4232-103"
+ "microchip,mcp4232-503"
+ "microchip,mcp4232-104"
+ "microchip,mcp4241-502"
+ "microchip,mcp4241-103"
+ "microchip,mcp4241-503"
+ "microchip,mcp4241-104"
+ "microchip,mcp4242-502"
+ "microchip,mcp4242-103"
+ "microchip,mcp4242-503"
+ "microchip,mcp4242-104"
+ "microchip,mcp4251-502"
+ "microchip,mcp4251-103"
+ "microchip,mcp4251-503"
+ "microchip,mcp4251-104"
+ "microchip,mcp4252-502"
+ "microchip,mcp4252-103"
+ "microchip,mcp4252-503"
+ "microchip,mcp4252-104"
+ "microchip,mcp4261-502"
+ "microchip,mcp4261-103"
+ "microchip,mcp4261-503"
+ "microchip,mcp4261-104"
+ "microchip,mcp4262-502"
+ "microchip,mcp4262-103"
+ "microchip,mcp4262-503"
+ "microchip,mcp4262-104"
+
+Example:
+mcp4131: mcp4131@0 {
+ compatible = "mcp4131-502";
+ reg = <0>;
+ spi-max-frequency = <500000>;
+};
diff --git a/Documentation/devicetree/bindings/iio/potentiostat/lmp91000.txt b/Documentation/devicetree/bindings/iio/potentiostat/lmp91000.txt
new file mode 100644
index 000000000..f3ab02b0d
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/potentiostat/lmp91000.txt
@@ -0,0 +1,33 @@
+* Texas Instruments LMP91000 series of potentiostats
+
+LMP91000: https://www.ti.com/lit/ds/symlink/lmp91000.pdf
+LMP91002: https://www.ti.com/lit/ds/symlink/lmp91002.pdf
+
+Required properties:
+
+ - compatible: should be one of the following:
+ "ti,lmp91000"
+ "ti,lmp91002"
+ - reg: the I2C address of the device
+ - io-channels: the phandle of the iio provider
+
+ - ti,external-tia-resistor: if the property ti,tia-gain-ohm is not defined this
+ needs to be set to signal that an external resistor value is being used.
+
+Optional properties:
+
+ - ti,tia-gain-ohm: ohm value of the internal resistor for the transimpedance
+ amplifier. Must be 2750, 3500, 7000, 14000, 35000, 120000, or 350000 ohms.
+
+ - ti,rload-ohm: ohm value of the internal resistor load applied to the gas
+ sensor. Must be 10, 33, 50, or 100 (default) ohms.
+
+Example:
+
+lmp91000@48 {
+ compatible = "ti,lmp91000";
+ reg = <0x48>;
+ ti,tia-gain-ohm = <7500>;
+ ti,rload = <100>;
+ io-channels = <&adc>;
+};
diff --git a/Documentation/devicetree/bindings/iio/pressure/asc,dlhl60d.yaml b/Documentation/devicetree/bindings/iio/pressure/asc,dlhl60d.yaml
new file mode 100644
index 000000000..be2be4b55
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/pressure/asc,dlhl60d.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/pressure/asc,dlhl60d.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: All Sensors DLH series low voltage digital pressure sensors
+
+maintainers:
+ - Tomislav Denis <tomislav.denis@avl.com>
+
+description: |
+ Bindings for the All Sensors DLH series pressure sensors.
+
+ Specifications about the sensors can be found at:
+ https://www.allsensors.com/cad/DS-0355_Rev_B.PDF
+
+properties:
+ compatible:
+ enum:
+ - asc,dlhl60d
+ - asc,dlhl60g
+
+ reg:
+ description: I2C device address
+ maxItems: 1
+
+ interrupts:
+ description: interrupt mapping for EOC(data ready) pin
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pressure@29 {
+ compatible = "asc,dlhl60d";
+ reg = <0x29>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <10 IRQ_TYPE_EDGE_RISING>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/pressure/bmp085.yaml b/Documentation/devicetree/bindings/iio/pressure/bmp085.yaml
new file mode 100644
index 000000000..49257f925
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/pressure/bmp085.yaml
@@ -0,0 +1,73 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/pressure/bmp085.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: BMP085/BMP180/BMP280/BME280 pressure iio sensors
+
+maintainers:
+ - Andreas Klinger <ak@it-klinger.de>
+
+description: |
+ Pressure, temperature and humidity iio sensors with i2c and spi interfaces
+
+ Specifications about the sensor can be found at:
+ https://www.bosch-sensortec.com/bst/products/all_products/bmp180
+ https://www.bosch-sensortec.com/bst/products/all_products/bmp280
+ https://www.bosch-sensortec.com/bst/products/all_products/bme280
+
+properties:
+ compatible:
+ enum:
+ - bosch,bmp085
+ - bosch,bmp180
+ - bosch,bmp280
+ - bosch,bme280
+
+ reg:
+ maxItems: 1
+
+ vddd-supply:
+ description:
+ digital voltage regulator (see regulator/regulator.txt)
+
+ vdda-supply:
+ description:
+ analog voltage regulator (see regulator/regulator.txt)
+
+ reset-gpios:
+ description:
+ A GPIO line handling reset of the sensor. As the line is active low,
+ it should be marked GPIO_ACTIVE_LOW (see gpio/gpio.txt)
+ maxItems: 1
+
+ interrupts:
+ description:
+ interrupt mapping for IRQ (BMP085 only)
+ maxItems: 1
+
+required:
+ - compatible
+ - vddd-supply
+ - vdda-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pressure@77 {
+ compatible = "bosch,bmp085";
+ reg = <0x77>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <25 IRQ_TYPE_EDGE_RISING>;
+ reset-gpios = <&gpio0 26 GPIO_ACTIVE_LOW>;
+ vddd-supply = <&foo>;
+ vdda-supply = <&bar>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/pressure/hp03.txt b/Documentation/devicetree/bindings/iio/pressure/hp03.txt
new file mode 100644
index 000000000..831dbee7a
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/pressure/hp03.txt
@@ -0,0 +1,17 @@
+HopeRF HP03 digital pressure/temperature sensors
+
+Required properties:
+- compatible: must be "hoperf,hp03"
+- xclr-gpio: must be device tree identifier of the XCLR pin.
+ The XCLR pin is a reset of the ADC in the chip,
+ it must be pulled HI before the conversion and
+ readout of the value from the ADC registers and
+ pulled LO afterward.
+
+Example:
+
+hp03@77 {
+ compatible = "hoperf,hp03";
+ reg = <0x77>;
+ xclr-gpio = <&portc 0 0x0>;
+};
diff --git a/Documentation/devicetree/bindings/iio/pressure/ms5611.txt b/Documentation/devicetree/bindings/iio/pressure/ms5611.txt
new file mode 100644
index 000000000..17bca866c
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/pressure/ms5611.txt
@@ -0,0 +1,19 @@
+MEAS ms5611 family pressure sensors
+
+Pressure sensors from MEAS Switzerland with SPI and I2C bus interfaces.
+
+Required properties:
+- compatible: "meas,ms5611" or "meas,ms5607"
+- reg: the I2C address or SPI chip select the device will respond to
+
+Optional properties:
+- vdd-supply: an optional regulator that needs to be on to provide VDD
+ power to the sensor.
+
+Example:
+
+ms5607@77 {
+ compatible = "meas,ms5607";
+ reg = <0x77>;
+ vdd-supply = <&ldo_3v3_gnss>;
+};
diff --git a/Documentation/devicetree/bindings/iio/pressure/ms5637.txt b/Documentation/devicetree/bindings/iio/pressure/ms5637.txt
new file mode 100644
index 000000000..1f43ffa06
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/pressure/ms5637.txt
@@ -0,0 +1,17 @@
+* MS5637 - Measurement-Specialties MS5637, MS5805, MS5837 and MS8607 pressure & temperature sensor
+
+Required properties:
+
+ -compatible: should be one of the following
+ meas,ms5637
+ meas,ms5805
+ meas,ms5837
+ meas,ms8607-temppressure
+ -reg: I2C address of the sensor
+
+Example:
+
+ms5637@76 {
+ compatible = "meas,ms5637";
+ reg = <0x76>;
+};
diff --git a/Documentation/devicetree/bindings/iio/pressure/zpa2326.txt b/Documentation/devicetree/bindings/iio/pressure/zpa2326.txt
new file mode 100644
index 000000000..a36ab3e0c
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/pressure/zpa2326.txt
@@ -0,0 +1,29 @@
+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
+- 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/Documentation/devicetree/bindings/iio/proximity/as3935.txt b/Documentation/devicetree/bindings/iio/proximity/as3935.txt
new file mode 100644
index 000000000..849115585
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/proximity/as3935.txt
@@ -0,0 +1,34 @@
+Austrian Microsystems AS3935 Franklin lightning sensor device driver
+
+Required properties:
+ - compatible: must be "ams,as3935"
+ - reg: SPI chip select number for the device
+ - spi-max-frequency: specifies maximum SPI clock frequency
+ - spi-cpha: SPI Mode 1. Refer to spi/spi-bus.txt for generic SPI
+ slave node bindings.
+ - interrupts : the sole interrupt generated by the device
+
+ Refer to interrupt-controller/interrupts.txt for generic
+ interrupt client node bindings.
+
+Optional properties:
+ - ams,tuning-capacitor-pf: Calibration tuning capacitor stepping
+ value 0 - 120pF. This will require using the calibration data from
+ the manufacturer.
+ - ams,nflwdth: Set the noise and watchdog threshold register on
+ startup. This will need to set according to the noise from the
+ MCU board, and possibly the local environment. Refer to the
+ datasheet for the threshold settings.
+
+Example:
+
+as3935@0 {
+ compatible = "ams,as3935";
+ reg = <0>;
+ spi-max-frequency = <400000>;
+ spi-cpha;
+ interrupt-parent = <&gpio1>;
+ interrupts = <16 1>;
+ ams,tuning-capacitor-pf = <80>;
+ ams,nflwdth = <0x44>;
+};
diff --git a/Documentation/devicetree/bindings/iio/proximity/devantech-srf04.yaml b/Documentation/devicetree/bindings/iio/proximity/devantech-srf04.yaml
new file mode 100644
index 000000000..ce7952798
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/proximity/devantech-srf04.yaml
@@ -0,0 +1,86 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/proximity/devantech-srf04.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Devantech SRF04 and Maxbotix mb1000 ultrasonic range finder
+
+maintainers:
+ - Andreas Klinger <ak@it-klinger.de>
+
+description: |
+ Bit-banging driver using two GPIOs:
+ - trigger-gpio is raised by the driver to start sending out an ultrasonic
+ burst
+ - echo-gpio is held high by the sensor after sending ultrasonic burst
+ until it is received once again
+
+ Specifications about the devices can be found at:
+ https://www.robot-electronics.co.uk/htm/srf04tech.htm
+
+ https://www.maxbotix.com/documents/LV-MaxSonar-EZ_Datasheet.pdf
+
+properties:
+ compatible:
+ enum:
+ - devantech,srf04
+ - maxbotix,mb1000
+ - maxbotix,mb1010
+ - maxbotix,mb1020
+ - maxbotix,mb1030
+ - maxbotix,mb1040
+
+ trig-gpios:
+ description:
+ Definition of the GPIO for the triggering (output)
+ This GPIO is set for about 10 us by the driver to tell the device it
+ should initiate the measurement cycle.
+ See Documentation/devicetree/bindings/gpio/gpio.txt for information
+ on how to specify a consumer gpio.
+ maxItems: 1
+
+ echo-gpios:
+ description:
+ Definition of the GPIO for the echo (input)
+ This GPIO is set by the device as soon as an ultrasonic burst is sent
+ out and reset when the first echo is received.
+ Thus this GPIO is set while the ultrasonic waves are doing one round
+ trip.
+ It needs to be an GPIO which is able to deliver an interrupt because
+ the time between two interrupts is measured in the driver.
+ maxItems: 1
+
+ power-gpios:
+ description:
+ Definition of the GPIO for power management of connected peripheral
+ (output).
+ This GPIO can be used by the external hardware for power management.
+ When the device gets suspended it's switched off and when it resumes
+ it's switched on again. After some period of inactivity the driver
+ get suspended automatically (autosuspend feature).
+ maxItems: 1
+
+ startup-time-ms:
+ description:
+ This is the startup time the device needs after a resume to be up and
+ running.
+ minimum: 0
+ maximum: 1000
+ default: 100
+
+required:
+ - compatible
+ - trig-gpios
+ - echo-gpios
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ proximity {
+ compatible = "devantech,srf04";
+ trig-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>;
+ echo-gpios = <&gpio2 6 GPIO_ACTIVE_HIGH>;
+ };
diff --git a/Documentation/devicetree/bindings/iio/proximity/maxbotix,mb1232.yaml b/Documentation/devicetree/bindings/iio/proximity/maxbotix,mb1232.yaml
new file mode 100644
index 000000000..3eac248f2
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/proximity/maxbotix,mb1232.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/proximity/maxbotix,mb1232.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MaxBotix I2CXL-MaxSonar ultrasonic distance sensor
+
+maintainers:
+ - Andreas Klinger <ak@it-klinger.de>
+
+description: |
+ MaxBotix I2CXL-MaxSonar ultrasonic distance sensor of type mb1202,
+ mb1212, mb1222, mb1232, mb1242, mb7040 or mb7137 using the i2c interface
+ for ranging
+
+ Specifications about the devices can be found at:
+ https://www.maxbotix.com/documents/I2CXL-MaxSonar-EZ_Datasheet.pdf
+
+properties:
+ compatible:
+ enum:
+ - maxbotix,mb1202
+ - maxbotix,mb1212
+ - maxbotix,mb1222
+ - maxbotix,mb1232
+ - maxbotix,mb1242
+ - maxbotix,mb7040
+ - maxbotix,mb7137
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ description:
+ Interrupt used to announce the preceding reading request has finished
+ and that data is available. If no interrupt is specified the device
+ driver falls back to wait a fixed amount of time until data can be
+ retrieved.
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ proximity@70 {
+ compatible = "maxbotix,mb1232";
+ reg = <0x70>;
+ interrupt-parent = <&gpio2>;
+ interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/proximity/parallax-ping.yaml b/Documentation/devicetree/bindings/iio/proximity/parallax-ping.yaml
new file mode 100644
index 000000000..ada55f186
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/proximity/parallax-ping.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/proximity/parallax-ping.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Parallax PING))) and LaserPING range finder
+
+maintainers:
+ - Andreas Klinger <ak@it-klinger.de>
+
+description: |
+ Bit-banging driver using one GPIO:
+ - ping-gpios is raised by the driver to start measurement
+ - direction of ping-gpio is then switched into input with an interrupt
+ for receiving distance value as PWM signal
+
+ Specifications about the devices can be found at:
+ http://parallax.com/sites/default/files/downloads/28041-LaserPING-2m-Rangefinder-Guide.pdf
+ http://parallax.com/sites/default/files/downloads/28015-PING-Documentation-v1.6.pdf
+
+properties:
+ compatible:
+ enum:
+ - parallax,ping
+ - parallax,laserping
+
+ ping-gpios:
+ description:
+ Definition of the GPIO for the triggering and echo (output and input)
+ This GPIO is set for about 5 us by the driver to tell the device it
+ should initiate the measurement cycle. Afterwards the GPIO is switched
+ to input direction with an interrupt. The device sets it and the
+ length of the input signal corresponds to the measured distance.
+ It needs to be an GPIO which is able to deliver an interrupt because
+ the time between two interrupts is measured in the driver.
+ See Documentation/devicetree/bindings/gpio/gpio.txt for information
+ on how to specify a consumer gpio.
+ maxItems: 1
+
+required:
+ - compatible
+ - ping-gpios
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ proximity {
+ compatible = "parallax,laserping";
+ ping-gpios = <&gpio0 26 GPIO_ACTIVE_HIGH>;
+ };
diff --git a/Documentation/devicetree/bindings/iio/proximity/semtech,sx9310.yaml b/Documentation/devicetree/bindings/iio/proximity/semtech,sx9310.yaml
new file mode 100644
index 000000000..5739074d3
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/proximity/semtech,sx9310.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/proximity/semtech,sx9310.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Semtech's SX9310 capacitive proximity sensor
+
+maintainers:
+ - Daniel Campello <campello@chromium.org>
+
+description: |
+ Semtech's SX9310/SX9311 capacitive proximity/button solution.
+
+ Specifications about the devices can be found at:
+ https://www.semtech.com/products/smart-sensing/sar-sensors/sx9310
+
+properties:
+ compatible:
+ enum:
+ - semtech,sx9310
+ - semtech,sx9311
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ description:
+ The sole interrupt generated by the device used to announce the
+ preceding reading request has finished and that data is
+ available or that a close/far proximity event has happened.
+ maxItems: 1
+
+ vdd-supply:
+ description: Main power supply
+
+ svdd-supply:
+ description: Host interface power supply
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - "#io-channel-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ proximity@28 {
+ compatible = "semtech,sx9310";
+ reg = <0x28>;
+ interrupt-parent = <&pio>;
+ interrupts = <5 IRQ_TYPE_LEVEL_LOW 5>;
+ vdd-supply = <&pp3300_a>;
+ svdd-supply = <&pp1800_prox>;
+ #io-channel-cells = <1>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/proximity/sx9500.txt b/Documentation/devicetree/bindings/iio/proximity/sx9500.txt
new file mode 100644
index 000000000..c54455db3
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/proximity/sx9500.txt
@@ -0,0 +1,23 @@
+Semtech's SX9500 capacitive proximity button device driver
+
+Required properties:
+ - compatible: must be "semtech,sx9500"
+ - reg: i2c address where to find the device
+ - 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/Documentation/devicetree/bindings/iio/proximity/vishay,vcnl3020.yaml b/Documentation/devicetree/bindings/iio/proximity/vishay,vcnl3020.yaml
new file mode 100644
index 000000000..fbd3a2e32
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/proximity/vishay,vcnl3020.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/proximity/vishay,vcnl3020.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Integrated Proximity Sensor With Infrared Emitter
+
+maintainers:
+ - Ivan Mikhaylov <i.mikhaylov@yadro.com>
+
+description: |
+ The VCNL3020 is a fully integrated proximity sensor. Fully integrated means
+ that the infrared emitter is included in the package. It has 16-bit
+ resolution. It includes a signal processing IC and features standard I2C
+ communication interface. It features an interrupt function.
+
+ Specifications about the devices can be found at:
+ https://www.vishay.com/docs/84150/vcnl3020.pdf
+
+properties:
+ compatible:
+ enum:
+ - vishay,vcnl3020
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ vdd-supply:
+ description: Regulator that provides power to the sensor
+
+ vddio-supply:
+ description: Regulator that provides power to the bus
+
+ vishay,led-current-microamp:
+ description:
+ The driver current for the LED used in proximity sensing.
+ enum: [0, 10000, 20000, 30000, 40000, 50000, 60000, 70000, 80000, 90000,
+ 100000, 110000, 120000, 130000, 140000, 150000, 160000, 170000,
+ 180000, 190000, 200000]
+ default: 20000
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ proximity@13 {
+ compatible = "vishay,vcnl3020";
+ reg = <0x13>;
+ vishay,led-current-microamp = <200000>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/proximity/vl53l0x.txt b/Documentation/devicetree/bindings/iio/proximity/vl53l0x.txt
new file mode 100644
index 000000000..dfe00eb96
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/proximity/vl53l0x.txt
@@ -0,0 +1,18 @@
+ST VL53L0X ToF ranging sensor
+
+Required properties:
+ - compatible: must be "st,vl53l0x"
+ - reg: i2c address where to find the device
+
+Optional properties:
+ - interrupts: Interrupt for notifying that new measurement is ready.
+ If no interrupt is specified, polling is used.
+
+Example:
+
+vl53l0x@29 {
+ compatible = "st,vl53l0x";
+ reg = <0x29>;
+ interrupt-parent = <&gpio>;
+ interrupts = <23 IRQ_TYPE_EDGE_FALLING>;
+};
diff --git a/Documentation/devicetree/bindings/iio/resolver/ad2s90.txt b/Documentation/devicetree/bindings/iio/resolver/ad2s90.txt
new file mode 100644
index 000000000..477d41fa6
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/resolver/ad2s90.txt
@@ -0,0 +1,31 @@
+Analog Devices AD2S90 Resolver-to-Digital Converter
+
+https://www.analog.com/en/products/ad2s90.html
+
+Required properties:
+ - compatible: should be "adi,ad2s90"
+ - reg: SPI chip select number for the device
+ - spi-max-frequency: set maximum clock frequency, must be 830000
+ - spi-cpol and spi-cpha:
+ Either SPI mode (0,0) or (1,1) must be used, so specify none or both of
+ spi-cpha, spi-cpol.
+
+See for more details:
+ Documentation/devicetree/bindings/spi/spi-bus.txt
+
+Note about max frequency:
+ Chip's max frequency, as specified in its datasheet, is 2Mhz. But a 600ns
+ delay is expected between the application of a logic LO to CS and the
+ application of SCLK, as also specified. And since the delay is not
+ implemented in the spi code, to satisfy it, SCLK's period should be at most
+ 2 * 600ns, so the max frequency should be 1 / (2 * 6e-7), which gives
+ roughly 830000Hz.
+
+Example:
+resolver@0 {
+ compatible = "adi,ad2s90";
+ reg = <0>;
+ spi-max-frequency = <830000>;
+ spi-cpol;
+ spi-cpha;
+};
diff --git a/Documentation/devicetree/bindings/iio/sensorhub.txt b/Documentation/devicetree/bindings/iio/sensorhub.txt
new file mode 100644
index 000000000..b6ac0457d
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/sensorhub.txt
@@ -0,0 +1,24 @@
+Samsung Sensorhub driver
+
+Sensorhub is a MCU which manages several sensors and also plays the role
+of a virtual sensor device.
+
+Required properties:
+- compatible: "samsung,sensorhub-rinato" or "samsung,sensorhub-thermostat"
+- spi-max-frequency: max SPI clock frequency
+- interrupts: communication interrupt
+- ap-mcu-gpios: [out] ap to sensorhub line - used during communication
+- mcu-ap-gpios: [in] sensorhub to ap - used during communication
+- mcu-reset-gpios: [out] sensorhub reset
+
+Example:
+
+ shub_spi: shub {
+ compatible = "samsung,sensorhub-rinato";
+ spi-max-frequency = <5000000>;
+ interrupt-parent = <&gpx0>;
+ interrupts = <2 0>;
+ ap-mcu-gpios = <&gpx0 0 0>;
+ mcu-ap-gpios = <&gpx0 4 0>;
+ mcu-reset-gpios = <&gpx0 5 0>;
+ };
diff --git a/Documentation/devicetree/bindings/iio/st-sensors.txt b/Documentation/devicetree/bindings/iio/st-sensors.txt
new file mode 100644
index 000000000..3213599c5
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/st-sensors.txt
@@ -0,0 +1,82 @@
+STMicroelectronics MEMS sensors
+
+The STMicroelectronics sensor devices are pretty straight-forward I2C or
+SPI devices, all sharing the same device tree descriptions no matter what
+type of sensor it is.
+
+Required properties:
+- compatible: see the list of valid compatible strings below
+- reg: the I2C or SPI address the device will respond to
+
+Optional properties:
+- vdd-supply: an optional regulator that needs to be on to provide VDD
+ power to the sensor.
+- vddio-supply: an optional regulator that needs to be on to provide the
+ VDD IO power to the sensor.
+- st,drdy-int-pin: the pin on the package that will be used to signal
+ "data ready" (valid values: 1 or 2). This property is not configurable
+ on all sensors.
+- drive-open-drain: the interrupt/data ready line will be configured
+ as open drain, which is useful if several sensors share the same
+ interrupt line. (This binding is taken from pinctrl/pinctrl-bindings.txt)
+ This is a boolean property.
+
+Sensors may also have applicable pin control settings, those use the
+standard bindings from pinctrl/pinctrl-bindings.txt.
+
+Valid compatible strings:
+
+Accelerometers:
+- st,lis3lv02d (deprecated, use st,lis3lv02dl-accel)
+- st,lis302dl-spi (deprecated, use st,lis3lv02dl-accel)
+- st,lis3lv02dl-accel
+- st,lsm303dlh-accel
+- st,lsm303dlhc-accel
+- st,lis3dh-accel
+- st,lsm330d-accel
+- st,lsm330dl-accel
+- st,lsm330dlc-accel
+- st,lis331dl-accel
+- st,lis331dlh-accel
+- st,lsm303dl-accel
+- st,lsm303dlm-accel
+- st,lsm330-accel
+- st,lsm303agr-accel
+- st,lis2dh12-accel
+- st,h3lis331dl-accel
+- st,lng2dm-accel
+- st,lis3l02dq
+- st,lis2dw12
+- st,lis3dhh
+- st,lis3de
+- st,lis2de12
+- st,lis2hh12
+
+Gyroscopes:
+- st,l3g4200d-gyro
+- st,lsm330d-gyro
+- st,lsm330dl-gyro
+- st,lsm330dlc-gyro
+- st,l3gd20-gyro
+- st,l3gd20h-gyro
+- st,l3g4is-gyro
+- st,lsm330-gyro
+- st,lsm9ds0-gyro
+
+Magnetometers:
+- st,lsm303agr-magn
+- st,lsm303dlh-magn
+- st,lsm303dlhc-magn
+- st,lsm303dlm-magn
+- st,lis3mdl-magn
+- st,lis2mdl
+- st,lsm9ds1-magn
+
+Pressure sensors:
+- st,lps001wp-press
+- st,lps25h-press
+- st,lps331ap-press
+- st,lps22hb-press
+- st,lps33hw
+- st,lps35hw
+- st,lps22hh
diff --git a/Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml b/Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml
new file mode 100644
index 000000000..0f79d9a01
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml
@@ -0,0 +1,466 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/temperature/adi,ltc2983.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices LTC2983 Multi-sensor Temperature system
+
+maintainers:
+ - Nuno Sá <nuno.sa@analog.com>
+
+description: |
+ Analog Devices LTC2983 Multi-Sensor Digital Temperature Measurement System
+ https://www.analog.com/media/en/technical-documentation/data-sheets/2983fc.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,ltc2983
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ adi,mux-delay-config-us:
+ description:
+ The LTC2983 performs 2 or 3 internal conversion cycles per temperature
+ result. Each conversion cycle is performed with different excitation and
+ input multiplexer configurations. Prior to each conversion, these
+ excitation circuits and input switch configurations are changed and an
+ internal 1ms delay ensures settling prior to the conversion cycle in most
+ cases. An extra delay can be configured using this property. The value is
+ rounded to nearest 100us.
+ maximum: 255
+
+ adi,filter-notch-freq:
+ description:
+ Set's the default setting of the digital filter. The default is
+ simultaneous 50/60Hz rejection.
+ 0 - 50/60Hz rejection
+ 1 - 60Hz rejection
+ 2 - 50Hz rejection
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 2
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+patternProperties:
+ "@([1-9]|1[0-9]|20)$":
+ type: object
+
+ properties:
+ reg:
+ description:
+ The channel number. It can be connected to one of the 20 channels of
+ the device.
+ minimum: 1
+ maximum: 20
+
+ adi,sensor-type:
+ description: Identifies the type of sensor connected to the device.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ required:
+ - reg
+ - adi,sensor-type
+
+ "^thermocouple@":
+ type: object
+ description:
+ Represents a thermocouple sensor which is connected to one of the device
+ channels.
+
+ properties:
+ adi,sensor-type:
+ description: |
+ 1 - Type J Thermocouple
+ 2 - Type K Thermocouple
+ 3 - Type E Thermocouple
+ 4 - Type N Thermocouple
+ 5 - Type R Thermocouple
+ 6 - Type S Thermocouple
+ 7 - Type T Thermocouple
+ 8 - Type B Thermocouple
+ 9 - Custom Thermocouple
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 1
+ maximum: 9
+
+ adi,single-ended:
+ description:
+ Boolean property which set's the thermocouple as single-ended.
+ type: boolean
+
+ adi,sensor-oc-current-microamp:
+ description:
+ This property set's the pulsed current value applied during
+ open-circuit detect.
+ enum: [10, 100, 500, 1000]
+
+ adi,cold-junction-handle:
+ description:
+ Phandle which points to a sensor object responsible for measuring
+ the thermocouple cold junction temperature.
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
+ adi,custom-thermocouple:
+ description:
+ This is a table, where each entry should be a pair of
+ voltage(mv)-temperature(K). The entries must be given in nv and uK
+ so that, the original values must be multiplied by 1000000. For
+ more details look at table 69 and 70.
+ Note should be signed, but dtc doesn't currently maintain the
+ sign.
+ $ref: /schemas/types.yaml#/definitions/uint64-matrix
+ minItems: 3
+ maxItems: 64
+ items:
+ minItems: 2
+ maxItems: 2
+
+ "^diode@":
+ type: object
+ description:
+ Represents a diode sensor which is connected to one of the device
+ channels.
+
+ properties:
+ adi,sensor-type:
+ description: Identifies the sensor as a diode.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ const: 28
+
+ adi,single-ended:
+ description: Boolean property which set's the diode as single-ended.
+ type: boolean
+
+ adi,three-conversion-cycles:
+ description:
+ Boolean property which set's three conversion cycles removing
+ parasitic resistance effects between the LTC2983 and the diode.
+ type: boolean
+
+ adi,average-on:
+ description:
+ Boolean property which enables a running average of the diode
+ temperature reading. This reduces the noise when the diode is used
+ as a cold junction temperature element on an isothermal block
+ where temperatures change slowly.
+ type: boolean
+
+ adi,excitation-current-microamp:
+ description:
+ This property controls the magnitude of the excitation current
+ applied to the diode. Depending on the number of conversions
+ cycles, this property will assume different predefined values on
+ each cycle. Just set the value of the first cycle (1l).
+ enum: [10, 20, 40, 80]
+
+ adi,ideal-factor-value:
+ description:
+ This property sets the diode ideality factor. The real value must
+ be multiplied by 1000000 to remove the fractional part. For more
+ information look at table 20 of the datasheet.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ "^rtd@":
+ type: object
+ description:
+ Represents a rtd sensor which is connected to one of the device channels.
+
+ properties:
+ reg:
+ minimum: 2
+ maximum: 20
+
+ adi,sensor-type:
+ description: |
+ 10 - RTD PT-10
+ 11 - RTD PT-50
+ 12 - RTD PT-100
+ 13 - RTD PT-200
+ 14 - RTD PT-500
+ 15 - RTD PT-1000
+ 16 - RTD PT-1000 (0.00375)
+ 17 - RTD NI-120
+ 18 - RTD Custom
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 10
+ maximum: 18
+
+ adi,rsense-handle:
+ description:
+ Phandle pointing to a rsense object associated with this RTD.
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
+ adi,number-of-wires:
+ description:
+ Identifies the number of wires used by the RTD. Setting this
+ property to 5 means 4 wires with Kelvin Rsense.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [2, 3, 4, 5]
+
+ adi,rsense-share:
+ description:
+ Boolean property which enables Rsense sharing, where one sense
+ resistor is used for multiple 2-, 3-, and/or 4-wire RTDs.
+ type: boolean
+
+ adi,current-rotate:
+ description:
+ Boolean property which enables excitation current rotation to
+ automatically remove parasitic thermocouple effects. Note that
+ this property is not allowed for 2- and 3-wire RTDs.
+ type: boolean
+
+ adi,excitation-current-microamp:
+ description:
+ This property controls the magnitude of the excitation current
+ applied to the RTD.
+ enum: [5, 10, 25, 50, 100, 250, 500, 1000]
+
+ adi,rtd-curve:
+ description:
+ This property set the RTD curve used and the corresponding
+ Callendar-VanDusen constants. Look at table 30 of the datasheet.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 3
+
+ adi,custom-rtd:
+ description:
+ This is a table, where each entry should be a pair of
+ resistance(ohm)-temperature(K). The entries added here are in uohm
+ and uK. For more details values look at table 74 and 75.
+ $ref: /schemas/types.yaml#/definitions/uint64-matrix
+ items:
+ minItems: 3
+ maxItems: 64
+ items:
+ minItems: 2
+ maxItems: 2
+
+ required:
+ - adi,rsense-handle
+
+ dependencies:
+ adi,current-rotate: [ "adi,rsense-share" ]
+
+ "^thermistor@":
+ type: object
+ description:
+ Represents a thermistor sensor which is connected to one of the device
+ channels.
+
+ properties:
+ adi,sensor-type:
+ description:
+ 19 - Thermistor 44004/44033 2.252kohm at 25°C
+ 20 - Thermistor 44005/44030 3kohm at 25°C
+ 21 - Thermistor 44007/44034 5kohm at 25°C
+ 22 - Thermistor 44006/44031 10kohm at 25°C
+ 23 - Thermistor 44008/44032 30kohm at 25°C
+ 24 - Thermistor YSI 400 2.252kohm at 25°C
+ 25 - Thermistor Spectrum 1003k 1kohm
+ 26 - Thermistor Custom Steinhart-Hart
+ 27 - Custom Thermistor
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 19
+ maximum: 27
+
+ adi,rsense-handle:
+ description:
+ Phandle pointing to a rsense object associated with this
+ thermistor.
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
+ adi,single-ended:
+ description:
+ Boolean property which set's the thermistor as single-ended.
+ type: boolean
+
+ adi,rsense-share:
+ description:
+ Boolean property which enables Rsense sharing, where one sense
+ resistor is used for multiple thermistors. Note that this property
+ is ignored if adi,single-ended is set.
+ type: boolean
+
+ adi,current-rotate:
+ description:
+ Boolean property which enables excitation current rotation to
+ automatically remove parasitic thermocouple effects.
+ type: boolean
+
+ adi,excitation-current-nanoamp:
+ description:
+ This property controls the magnitude of the excitation current
+ applied to the thermistor. Value 0 set's the sensor in auto-range
+ mode.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 250, 500, 1000, 5000, 10000, 25000, 50000, 100000, 250000,
+ 500000, 1000000]
+
+ adi,custom-thermistor:
+ description:
+ This is a table, where each entry should be a pair of
+ resistance(ohm)-temperature(K). The entries added here are in uohm
+ and uK only for custom thermistors. For more details look at table
+ 78 and 79.
+ $ref: /schemas/types.yaml#/definitions/uint64-matrix
+ minItems: 3
+ maxItems: 64
+ items:
+ minItems: 2
+ maxItems: 2
+
+ adi,custom-steinhart:
+ description:
+ Steinhart-Hart coefficients are also supported and can
+ be programmed into the device memory using this property. For
+ Steinhart sensors the coefficients are given in the raw
+ format. Look at table 82 for more information.
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ items:
+ minItems: 6
+ maxItems: 6
+
+ required:
+ - adi,rsense-handle
+
+ dependencies:
+ adi,current-rotate: [ "adi,rsense-share" ]
+
+ "^adc@":
+ type: object
+ description: Represents a channel which is being used as a direct adc.
+
+ properties:
+ adi,sensor-type:
+ description: Identifies the sensor as a direct adc.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ const: 30
+
+ adi,single-ended:
+ description: Boolean property which set's the adc as single-ended.
+ type: boolean
+
+ "^rsense@":
+ type: object
+ description:
+ Represents a rsense which is connected to one of the device channels.
+ Rsense are used by thermistors and RTD's.
+
+ properties:
+ reg:
+ minimum: 2
+ maximum: 20
+
+ adi,sensor-type:
+ description: Identifies the sensor as a rsense.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ const: 29
+
+ adi,rsense-val-milli-ohms:
+ description:
+ Sets the value of the sense resistor. Look at table 20 of the
+ datasheet for information.
+
+ required:
+ - adi,rsense-val-milli-ohms
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ sensor_ltc2983: ltc2983@0 {
+ compatible = "adi,ltc2983";
+ reg = <0>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ interrupts = <20 IRQ_TYPE_EDGE_RISING>;
+ interrupt-parent = <&gpio>;
+
+ thermocouple@18 {
+ reg = <18>;
+ adi,sensor-type = <8>; //Type B
+ adi,sensor-oc-current-microamp = <10>;
+ adi,cold-junction-handle = <&diode5>;
+ };
+
+ diode5: diode@5 {
+ reg = <5>;
+ adi,sensor-type = <28>;
+ };
+
+ rsense2: rsense@2 {
+ reg = <2>;
+ adi,sensor-type = <29>;
+ adi,rsense-val-milli-ohms = <1200000>; //1.2Kohms
+ };
+
+ rtd@14 {
+ reg = <14>;
+ adi,sensor-type = <15>; //PT1000
+ /*2-wire, internal gnd, no current rotation*/
+ adi,number-of-wires = <2>;
+ adi,rsense-share;
+ adi,excitation-current-microamp = <500>;
+ adi,rsense-handle = <&rsense2>;
+ };
+
+ adc@10 {
+ reg = <10>;
+ adi,sensor-type = <30>;
+ adi,single-ended;
+ };
+
+ thermistor@12 {
+ reg = <12>;
+ adi,sensor-type = <26>; //Steinhart
+ adi,rsense-handle = <&rsense2>;
+ adi,custom-steinhart = <0x00F371EC 0x12345678
+ 0x2C0F8733 0x10018C66 0xA0FEACCD
+ 0x90021D99>; //6 entries
+ };
+
+ thermocouple@20 {
+ reg = <20>;
+ adi,sensor-type = <9>; //custom thermocouple
+ adi,single-ended;
+ adi,custom-thermocouple = /bits/ 64
+ <(-50220000) 0>,
+ <(-30200000) 99100000>,
+ <(-5300000) 135400000>,
+ <0 273150000>,
+ <40200000 361200000>,
+ <55300000 522100000>,
+ <88300000 720300000>,
+ <132200000 811200000>,
+ <188700000 922500000>,
+ <460400000 1000000000>; //10 pairs
+ };
+
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/temperature/max31856.txt b/Documentation/devicetree/bindings/iio/temperature/max31856.txt
new file mode 100644
index 000000000..06ab43bb4
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/temperature/max31856.txt
@@ -0,0 +1,24 @@
+Maxim MAX31856 thermocouple support
+
+https://datasheets.maximintegrated.com/en/ds/MAX31856.pdf
+
+Optional property:
+ - thermocouple-type: Type of thermocouple (THERMOCOUPLE_TYPE_K if
+ omitted). Supported types are B, E, J, K, N, R, S, T.
+
+Required properties:
+ - compatible: must be "maxim,max31856"
+ - reg: SPI chip select number for the device
+ - spi-max-frequency: As per datasheet max. supported freq is 5000000
+ - spi-cpha: must be defined for max31856 to enable SPI mode 1
+
+ Refer to spi/spi-bus.txt for generic SPI slave bindings.
+
+ Example:
+ temp-sensor@0 {
+ compatible = "maxim,max31856";
+ reg = <0>;
+ spi-max-frequency = <5000000>;
+ spi-cpha;
+ thermocouple-type = <THERMOCOUPLE_TYPE_K>;
+ };
diff --git a/Documentation/devicetree/bindings/iio/temperature/maxim_thermocouple.txt b/Documentation/devicetree/bindings/iio/temperature/maxim_thermocouple.txt
new file mode 100644
index 000000000..bb85cd0e0
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/temperature/maxim_thermocouple.txt
@@ -0,0 +1,24 @@
+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,max6675" or one of the following:
+ "maxim,max31855k", "maxim,max31855j", "maxim,max31855n",
+ "maxim,max31855s", "maxim,max31855t", "maxim,max31855e",
+ "maxim,max31855r"; the generic "max,max31855" is deprecated.
+ - 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,max31855k";
+ reg = <0>;
+ spi-max-frequency = <4300000>;
+ };
diff --git a/Documentation/devicetree/bindings/iio/temperature/mlx90614.txt b/Documentation/devicetree/bindings/iio/temperature/mlx90614.txt
new file mode 100644
index 000000000..9be57b036
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/temperature/mlx90614.txt
@@ -0,0 +1,24 @@
+* Melexis MLX90614 contactless IR temperature sensor
+
+http://melexis.com/Infrared-Thermometer-Sensors/Infrared-Thermometer-Sensors/MLX90614-615.aspx
+
+Required properties:
+
+ - compatible: should be "melexis,mlx90614"
+ - reg: the I2C address of the sensor
+
+Optional properties:
+
+ - wakeup-gpios: device tree identifier of the GPIO connected to the SDA line
+ to hold low in order to wake up the device. In normal operation, the
+ GPIO is set as input and will not interfere in I2C communication. There
+ is no need for a GPIO driving the SCL line. If no GPIO is given, power
+ management is disabled.
+
+Example:
+
+mlx90614@5a {
+ compatible = "melexis,mlx90614";
+ reg = <0x5a>;
+ wakeup-gpios = <&gpio0 2 GPIO_ACTIVE_HIGH>;
+};
diff --git a/Documentation/devicetree/bindings/iio/temperature/mlx90632.txt b/Documentation/devicetree/bindings/iio/temperature/mlx90632.txt
new file mode 100644
index 000000000..0b0581200
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/temperature/mlx90632.txt
@@ -0,0 +1,28 @@
+* Melexis MLX90632 contactless Infra Red temperature sensor
+
+Link to datasheet: https://www.melexis.com/en/documents/documentation/datasheets/datasheet-mlx90632
+
+There are various applications for the Infra Red contactless temperature sensor
+and MLX90632 is most suitable for consumer applications where measured object
+temperature is in range between -20 to 200 degrees Celsius with relative error
+of measurement below 1 degree Celsius in object temperature range for
+industrial applications. Since it can operate and measure ambient temperature
+in range of -20 to 85 degrees Celsius it is suitable also for outdoor use.
+
+Be aware that electronics surrounding the sensor can increase ambient
+temperature. MLX90632 can be calibrated to reduce the housing effect via
+already existing EEPROM parameters.
+
+Since measured object emissivity effects Infra Red energy emitted, emissivity
+should be set before requesting the object temperature.
+
+Required properties:
+ - compatible: should be "melexis,mlx90632"
+ - reg: the I2C address of the sensor (default 0x3a)
+
+Example:
+
+mlx90632@3a {
+ compatible = "melexis,mlx90632";
+ reg = <0x3a>;
+};
diff --git a/Documentation/devicetree/bindings/iio/temperature/temperature-bindings.txt b/Documentation/devicetree/bindings/iio/temperature/temperature-bindings.txt
new file mode 100644
index 000000000..8f339cab7
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/temperature/temperature-bindings.txt
@@ -0,0 +1,7 @@
+If the temperature sensor device can be configured to use some specific
+thermocouple type, you can use the defined types provided in the file
+"include/dt-bindings/iio/temperature/thermocouple.h".
+
+Property:
+thermocouple-type: A single cell representing the type of the thermocouple
+ used by the device.
diff --git a/Documentation/devicetree/bindings/iio/temperature/tmp007.txt b/Documentation/devicetree/bindings/iio/temperature/tmp007.txt
new file mode 100644
index 000000000..da0af234a
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/temperature/tmp007.txt
@@ -0,0 +1,33 @@
+* 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
+
+Optional properties:
+
+ - interrupts: interrupt mapping for GPIO IRQ (level active low)
+
+Example:
+
+tmp007@40 {
+ compatible = "ti,tmp007";
+ reg = <0x40>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <5 0x08>;
+};
+
diff --git a/Documentation/devicetree/bindings/iio/temperature/tsys01.txt b/Documentation/devicetree/bindings/iio/temperature/tsys01.txt
new file mode 100644
index 000000000..0d5cc5595
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/temperature/tsys01.txt
@@ -0,0 +1,19 @@
+* TSYS01 - Measurement Specialties temperature sensor
+
+Required properties:
+
+ - compatible: should be "meas,tsys01"
+ - reg: I2C address of the sensor (changeable via CSB pin)
+
+ ------------------------
+ | CSB | Device Address |
+ ------------------------
+ 1 0x76
+ 0 0x77
+
+Example:
+
+tsys01@76 {
+ compatible = "meas,tsys01";
+ reg = <0x76>;
+};