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-rw-r--r--kernel/Documentation/devicetree/bindings/iio/accel/bma180.txt24
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/adc/at91_adc.txt87
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/adc/cc10001_adc.txt22
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/adc/da9150-gpadc.txt16
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt22
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/adc/mcp320x.txt30
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/adc/mcp3422.txt17
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/adc/nuvoton-nau7802.txt18
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/adc/qcom,spmi-iadc.txt46
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.txt129
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt24
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/adc/ti-adc128s052.txt18
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/adc/twl4030-madc.txt24
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/adc/vf610-adc.txt22
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/adc/xilinx-xadc.txt113
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/dac/ad7303.txt23
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/dac/max5821.txt14
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/frequency/adf4350.txt86
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/humidity/dht11.txt14
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/iio-bindings.txt97
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/light/apds9300.txt22
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/light/cm36651.txt26
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/light/gp2ap020a00f.txt21
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/light/tsl2563.txt19
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt18
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/magnetometer/hmc5843.txt21
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/proximity/as3935.txt28
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/sensorhub.txt25
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/st-sensors.txt55
29 files changed, 1081 insertions, 0 deletions
diff --git a/kernel/Documentation/devicetree/bindings/iio/accel/bma180.txt b/kernel/Documentation/devicetree/bindings/iio/accel/bma180.txt
new file mode 100644
index 000000000..c5933573e
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/accel/bma180.txt
@@ -0,0 +1,24 @@
+* Bosch BMA180 triaxial acceleration sensor
+
+http://omapworld.com/BMA180_111_1002839.pdf
+
+Required properties:
+
+ - compatible : should be "bosch,bma180"
+ - reg : the I2C address of the sensor
+
+Optional properties:
+
+ - interrupt-parent : should be the phandle for the interrupt controller
+
+ - interrupts : interrupt mapping for GPIO IRQ, it should by configured with
+ flags IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_EDGE_RISING
+
+Example:
+
+bma180@40 {
+ compatible = "bosch,bma180";
+ reg = <0x40>;
+ interrupt-parent = <&gpio6>;
+ interrupts = <18 (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_EDGE_RISING)>;
+};
diff --git a/kernel/Documentation/devicetree/bindings/iio/adc/at91_adc.txt b/kernel/Documentation/devicetree/bindings/iio/adc/at91_adc.txt
new file mode 100644
index 000000000..0f813dec5
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/adc/at91_adc.txt
@@ -0,0 +1,87 @@
+* 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";
+
+ trigger@0 {
+ reg = <0>;
+ trigger-name = "external-rising";
+ trigger-value = <0x1>;
+ trigger-external;
+ };
+ trigger@1 {
+ reg = <1>;
+ trigger-name = "external-falling";
+ trigger-value = <0x2>;
+ trigger-external;
+ };
+
+ trigger@2 {
+ reg = <2>;
+ trigger-name = "external-any";
+ trigger-value = <0x3>;
+ trigger-external;
+ };
+
+ trigger@3 {
+ reg = <3>;
+ trigger-name = "continuous";
+ trigger-value = <0x6>;
+ };
+};
diff --git a/kernel/Documentation/devicetree/bindings/iio/adc/cc10001_adc.txt b/kernel/Documentation/devicetree/bindings/iio/adc/cc10001_adc.txt
new file mode 100644
index 000000000..904f76de9
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/adc/cc10001_adc.txt
@@ -0,0 +1,22 @@
+* Cosmic Circuits - Analog to Digital Converter (CC-10001-ADC)
+
+Required properties:
+ - compatible: Should be "cosmic,10001-adc"
+ - reg: Should contain adc registers location and length.
+ - clock-names: Should contain "adc".
+ - clocks: Should contain a clock specifier for each entry in clock-names
+ - vref-supply: The regulator supply ADC reference voltage.
+
+Optional properties:
+ - adc-reserved-channels: Bitmask of reserved channels,
+ i.e. channels that cannot be used by the OS.
+
+Example:
+adc: 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/kernel/Documentation/devicetree/bindings/iio/adc/da9150-gpadc.txt b/kernel/Documentation/devicetree/bindings/iio/adc/da9150-gpadc.txt
new file mode 100644
index 000000000..c07228da9
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/adc/da9150-gpadc.txt
@@ -0,0 +1,16 @@
+Dialog Semiconductor DA9150 IIO GPADC bindings
+
+Required properties:
+- compatible: "dlg,da9150-gpadc" for DA9150 IIO GPADC
+- #io-channel-cells: Should be set to <1>
+ (See Documentation/devicetree/bindings/iio/iio-bindings.txt for further info)
+
+For further information on GPADC channels, see device datasheet.
+
+
+Example:
+
+ gpadc: da9150-gpadc {
+ compatible = "dlg,da9150-gpadc";
+ #io-channel-cells = <1>;
+ };
diff --git a/kernel/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt b/kernel/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt
new file mode 100644
index 000000000..a8770cc6b
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt
@@ -0,0 +1,22 @@
+* Maxim 1027/1029/1031 Analog to Digital Converter (ADC)
+
+Required properties:
+ - compatible: Should be "maxim,max1027" or "maxim,max1029" or "maxim,max1031"
+ - reg: SPI chip select number for the device
+ - interrupt-parent: phandle to the parent interrupt controller
+ see: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
+ - interrupts: IRQ line for the ADC
+ see: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
+
+Recommended properties:
+- spi-max-frequency: Definition as per
+ Documentation/devicetree/bindings/spi/spi-bus.txt
+
+Example:
+adc@0 {
+ compatible = "maxim,max1027";
+ reg = <0>;
+ interrupt-parent = <&gpio5>;
+ interrupts = <15 IRQ_TYPE_EDGE_RISING>;
+ spi-max-frequency = <1000000>;
+};
diff --git a/kernel/Documentation/devicetree/bindings/iio/adc/mcp320x.txt b/kernel/Documentation/devicetree/bindings/iio/adc/mcp320x.txt
new file mode 100644
index 000000000..b85184391
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/adc/mcp320x.txt
@@ -0,0 +1,30 @@
+* Microchip Analog to Digital Converter (ADC)
+
+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:
+ "mcp3001"
+ "mcp3002"
+ "mcp3004"
+ "mcp3008"
+ "mcp3201"
+ "mcp3202"
+ "mcp3204"
+ "mcp3208"
+
+
+Examples:
+spi_controller {
+ mcp3x0x@0 {
+ compatible = "mcp3002";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ };
+};
diff --git a/kernel/Documentation/devicetree/bindings/iio/adc/mcp3422.txt b/kernel/Documentation/devicetree/bindings/iio/adc/mcp3422.txt
new file mode 100644
index 000000000..333139cc0
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/adc/mcp3422.txt
@@ -0,0 +1,17 @@
+* Microchip mcp3422/3/4/6/7/8 chip family (ADC)
+
+Required properties:
+ - compatible: Should be
+ "microchip,mcp3422" or
+ "microchip,mcp3423" or
+ "microchip,mcp3424" or
+ "microchip,mcp3426" or
+ "microchip,mcp3427" or
+ "microchip,mcp3428"
+ - reg: I2C address for the device
+
+Example:
+adc@0 {
+ compatible = "microchip,mcp3424";
+ reg = <0x68>;
+};
diff --git a/kernel/Documentation/devicetree/bindings/iio/adc/nuvoton-nau7802.txt b/kernel/Documentation/devicetree/bindings/iio/adc/nuvoton-nau7802.txt
new file mode 100644
index 000000000..e9582e6fe
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/adc/nuvoton-nau7802.txt
@@ -0,0 +1,18 @@
+* Nuvoton NAU7802 Analog to Digital Converter (ADC)
+
+Required properties:
+ - compatible: Should be "nuvoton,nau7802"
+ - reg: Should contain the ADC I2C address
+
+Optional properties:
+ - nuvoton,vldo: Internal reference voltage in millivolts to be
+ configured valid values are between 2400 mV and 4500 mV.
+ - interrupts: IRQ line for the ADC. If not used the driver will use
+ polling.
+
+Example:
+adc2: nau7802@2a {
+ compatible = "nuvoton,nau7802";
+ reg = <0x2a>;
+ nuvoton,vldo = <3000>;
+};
diff --git a/kernel/Documentation/devicetree/bindings/iio/adc/qcom,spmi-iadc.txt b/kernel/Documentation/devicetree/bindings/iio/adc/qcom,spmi-iadc.txt
new file mode 100644
index 000000000..4e36d6e2f
--- /dev/null
+++ b/kernel/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/kernel/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.txt b/kernel/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.txt
new file mode 100644
index 000000000..0fb46137f
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.txt
@@ -0,0 +1,129 @@
+Qualcomm's SPMI PMIC voltage ADC
+
+SPMI PMIC voltage ADC (VADC) provides interface to clients to read
+voltage. The VADC is a 15-bit sigma-delta ADC.
+
+VADC node:
+
+- compatible:
+ Usage: required
+ Value type: <string>
+ Definition: Should contain "qcom,spmi-vadc".
+
+- reg:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: VADC base address and length in the SPMI PMIC register map.
+
+- #address-cells:
+ Usage: required
+ Value type: <u32>
+ Definition: Must be one. Child node 'reg' property should define ADC
+ channel number.
+
+- #size-cells:
+ Usage: required
+ Value type: <u32>
+ Definition: Must be zero.
+
+- #io-channel-cells:
+ Usage: required
+ Value type: <u32>
+ Definition: Must be one. For details about IIO bindings see:
+ Documentation/devicetree/bindings/iio/iio-bindings.txt
+
+- interrupts:
+ Usage: optional
+ Value type: <prop-encoded-array>
+ Definition: End of conversion interrupt.
+
+Channel node properties:
+
+- reg:
+ Usage: required
+ Value type: <u32>
+ Definition: ADC channel number.
+ See include/dt-bindings/iio/qcom,spmi-vadc.h
+
+- qcom,decimation:
+ Usage: optional
+ Value type: <u32>
+ Definition: This parameter is used to decrease ADC sampling rate.
+ Quicker measurements can be made by reducing decimation ratio.
+ Valid values are 512, 1024, 2048, 4096.
+ If property is not found, default value of 512 will be used.
+
+- qcom,pre-scaling:
+ Usage: optional
+ Value type: <u32 array>
+ Definition: 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. Select one from
+ the following options.
+ <1 1>, <1 3>, <1 4>, <1 6>, <1 20>, <1 8>, <10 81>, <1 10>
+ If property is not found default value depending on chip will be used.
+
+- qcom,ratiometric:
+ Usage: optional
+ Value type: <empty>
+ Definition: Channel calibration type. 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.
+
+- qcom,hw-settle-time:
+ Usage: optional
+ Value type: <u32>
+ Definition: Time between AMUX getting configured and the ADC starting
+ conversion. Delay = 100us * (value) for value < 11, and
+ 2ms * (value - 10) otherwise.
+ Valid values are: 0, 100, 200, 300, 400, 500, 600, 700, 800,
+ 900 us and 1, 2, 4, 6, 8, 10 ms
+ If property is not found, channel will use 0us.
+
+- qcom,avg-samples:
+ Usage: optional
+ Value type: <u32>
+ Definition: 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).
+ Valid values are: 1, 2, 4, 8, 16, 32, 64, 128, 256, 512
+ If property is not found, 1 sample will be used.
+
+NOTE:
+
+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.
+
+Example:
+
+ /* VADC node */
+ pmic_vadc: vadc@3100 {
+ compatible = "qcom,spmi-vadc";
+ reg = <0x3100 0x100>;
+ interrupts = <0x0 0x31 0x0 IRQ_TYPE_EDGE_RISING>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #io-channel-cells = <1>;
+ io-channel-ranges;
+
+ /* Channel node */
+ usb_id_nopull {
+ reg = <VADC_LR_MUX10_USB_ID>;
+ qcom,decimation = <512>;
+ qcom,ratiometric;
+ qcom,hw-settle-time = <200>;
+ qcom,avg-samples = <1>;
+ qcom,pre-scaling = <1 3>;
+ };
+ };
+
+ /* IIO client node */
+ usb {
+ io-channels = <&pmic_vadc VADC_LR_MUX10_USB_ID>;
+ io-channel-names = "vadc";
+ };
diff --git a/kernel/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt b/kernel/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt
new file mode 100644
index 000000000..a9a5fe19f
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt
@@ -0,0 +1,24 @@
+Rockchip Successive Approximation Register (SAR) A/D Converter bindings
+
+Required properties:
+- compatible: Should be "rockchip,saradc" or "rockchip,rk3066-tsadc"
+- reg: physical base address of the controller and length of memory mapped
+ region.
+- interrupts: The interrupt number to the cpu. The interrupt specifier format
+ depends on the interrupt controller.
+- clocks: Must contain an entry for each entry in clock-names.
+- clock-names: Shall be "saradc" for the converter-clock, and "apb_pclk" for
+ the peripheral clock.
+- vref-supply: The regulator supply ADC reference voltage.
+- #io-channel-cells: Should be 1, see ../iio-bindings.txt
+
+Example:
+ 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";
+ #io-channel-cells = <1>;
+ vref-supply = <&vcc18>;
+ };
diff --git a/kernel/Documentation/devicetree/bindings/iio/adc/ti-adc128s052.txt b/kernel/Documentation/devicetree/bindings/iio/adc/ti-adc128s052.txt
new file mode 100644
index 000000000..42ca7deec
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/adc/ti-adc128s052.txt
@@ -0,0 +1,18 @@
+* Texas Instruments' ADC128S052 ADC chip
+
+Required properties:
+ - compatible: Should be "ti,adc128s052"
+ - reg: spi chip select number for the device
+ - vref-supply: The regulator supply for ADC reference voltage
+
+Recommended properties:
+ - spi-max-frequency: Definition as per
+ Documentation/devicetree/bindings/spi/spi-bus.txt
+
+Example:
+adc@0 {
+ compatible = "ti,adc128s052";
+ reg = <0>;
+ vref-supply = <&vdd_supply>;
+ spi-max-frequency = <1000000>;
+};
diff --git a/kernel/Documentation/devicetree/bindings/iio/adc/twl4030-madc.txt b/kernel/Documentation/devicetree/bindings/iio/adc/twl4030-madc.txt
new file mode 100644
index 000000000..6bdd21404
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/adc/twl4030-madc.txt
@@ -0,0 +1,24 @@
+* TWL4030 Monitoring Analog to Digital Converter (MADC)
+
+The MADC subsystem in the TWL4030 consists of a 10-bit ADC
+combined with a 16-input analog multiplexer.
+
+Required properties:
+ - compatible: Should contain "ti,twl4030-madc".
+ - interrupts: IRQ line for the MADC submodule.
+ - #io-channel-cells: Should be set to <1>.
+
+Optional properties:
+ - ti,system-uses-second-madc-irq: boolean, set if the second madc irq register
+ should be used, which is intended to be used
+ by Co-Processors (e.g. a modem).
+
+Example:
+
+&twl {
+ madc {
+ compatible = "ti,twl4030-madc";
+ interrupts = <3>;
+ #io-channel-cells = <1>;
+ };
+};
diff --git a/kernel/Documentation/devicetree/bindings/iio/adc/vf610-adc.txt b/kernel/Documentation/devicetree/bindings/iio/adc/vf610-adc.txt
new file mode 100644
index 000000000..1a4a43d5c
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/adc/vf610-adc.txt
@@ -0,0 +1,22 @@
+Freescale vf610 Analog to Digital Converter bindings
+
+The devicetree bindings are for the new ADC driver written for
+vf610/i.MX6slx and upward SoCs from Freescale.
+
+Required properties:
+- compatible: Should contain "fsl,vf610-adc"
+- 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 ADC controller, ADC clock source is ipg clock.
+- clock-names: Must contain "adc", matching entry in the clocks property.
+- vref-supply: The regulator supply ADC reference voltage.
+
+Example:
+adc0: adc@4003b000 {
+ compatible = "fsl,vf610-adc";
+ reg = <0x4003b000 0x1000>;
+ interrupts = <0 53 0x04>;
+ clocks = <&clks VF610_CLK_ADC0>;
+ clock-names = "adc";
+ vref-supply = <&reg_vcc_3v3_mcu>;
+};
diff --git a/kernel/Documentation/devicetree/bindings/iio/adc/xilinx-xadc.txt b/kernel/Documentation/devicetree/bindings/iio/adc/xilinx-xadc.txt
new file mode 100644
index 000000000..d71258e2d
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/adc/xilinx-xadc.txt
@@ -0,0 +1,113 @@
+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:
+ - interrupt-parent: phandle to the parent interrupt controller
+ - 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/kernel/Documentation/devicetree/bindings/iio/dac/ad7303.txt b/kernel/Documentation/devicetree/bindings/iio/dac/ad7303.txt
new file mode 100644
index 000000000..914610f05
--- /dev/null
+++ b/kernel/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/kernel/Documentation/devicetree/bindings/iio/dac/max5821.txt b/kernel/Documentation/devicetree/bindings/iio/dac/max5821.txt
new file mode 100644
index 000000000..54276ce8c
--- /dev/null
+++ b/kernel/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/kernel/Documentation/devicetree/bindings/iio/frequency/adf4350.txt b/kernel/Documentation/devicetree/bindings/iio/frequency/adf4350.txt
new file mode 100644
index 000000000..f8c181d81
--- /dev/null
+++ b/kernel/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/kernel/Documentation/devicetree/bindings/iio/humidity/dht11.txt b/kernel/Documentation/devicetree/bindings/iio/humidity/dht11.txt
new file mode 100644
index 000000000..ecc24c199
--- /dev/null
+++ b/kernel/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/kernel/Documentation/devicetree/bindings/iio/iio-bindings.txt b/kernel/Documentation/devicetree/bindings/iio/iio-bindings.txt
new file mode 100644
index 000000000..0b447d9ad
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/iio-bindings.txt
@@ -0,0 +1,97 @@
+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] http://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.
+
+Example for a simple configuration with no trigger:
+
+ adc: voltage-sensor@35 {
+ compatible = "maxim,max1139";
+ reg = <0x35>;
+ #io-channel-cells = <1>;
+ };
+
+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/kernel/Documentation/devicetree/bindings/iio/light/apds9300.txt b/kernel/Documentation/devicetree/bindings/iio/light/apds9300.txt
new file mode 100644
index 000000000..d6f66c73d
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/light/apds9300.txt
@@ -0,0 +1,22 @@
+* Avago APDS9300 ambient light sensor
+
+http://www.avagotech.com/docs/AV02-1077EN
+
+Required properties:
+
+ - compatible : should be "avago,apds9300"
+ - reg : the I2C address of the sensor
+
+Optional properties:
+
+ - interrupt-parent : should be the phandle for the interrupt controller
+ - interrupts : interrupt mapping for GPIO IRQ
+
+Example:
+
+apds9300@39 {
+ compatible = "avago,apds9300";
+ reg = <0x39>;
+ interrupt-parent = <&gpio2>;
+ interrupts = <29 8>;
+};
diff --git a/kernel/Documentation/devicetree/bindings/iio/light/cm36651.txt b/kernel/Documentation/devicetree/bindings/iio/light/cm36651.txt
new file mode 100644
index 000000000..c03e19db4
--- /dev/null
+++ b/kernel/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/kernel/Documentation/devicetree/bindings/iio/light/gp2ap020a00f.txt b/kernel/Documentation/devicetree/bindings/iio/light/gp2ap020a00f.txt
new file mode 100644
index 000000000..9231c8231
--- /dev/null
+++ b/kernel/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/kernel/Documentation/devicetree/bindings/iio/light/tsl2563.txt b/kernel/Documentation/devicetree/bindings/iio/light/tsl2563.txt
new file mode 100644
index 000000000..f91e809e7
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/light/tsl2563.txt
@@ -0,0 +1,19 @@
+* AMS TAOS TSL2563 ambient light sensor
+
+Required properties:
+
+ - compatible : should be "amstaos,tsl2563"
+ - reg : the I2C address of the sensor
+
+Optional properties:
+
+ - amstaos,cover-comp-gain : integer used as multiplier for gain
+ compensation (default = 1)
+
+Example:
+
+tsl2563@29 {
+ compatible = "amstaos,tsl2563";
+ reg = <0x29>;
+ amstaos,cover-comp-gain = <16>;
+};
diff --git a/kernel/Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt b/kernel/Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt
new file mode 100644
index 000000000..011679f1a
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt
@@ -0,0 +1,18 @@
+* AsahiKASEI AK8975 magnetometer sensor
+
+Required properties:
+
+ - compatible : should be "asahi-kasei,ak8975"
+ - reg : the I2C address of the magnetometer
+
+Optional properties:
+
+ - gpios : should be device tree identifier of the magnetometer DRDY pin
+
+Example:
+
+ak8975@0c {
+ compatible = "asahi-kasei,ak8975";
+ reg = <0x0c>;
+ gpios = <&gpj0 7 0>;
+};
diff --git a/kernel/Documentation/devicetree/bindings/iio/magnetometer/hmc5843.txt b/kernel/Documentation/devicetree/bindings/iio/magnetometer/hmc5843.txt
new file mode 100644
index 000000000..8e191eef0
--- /dev/null
+++ b/kernel/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/kernel/Documentation/devicetree/bindings/iio/proximity/as3935.txt b/kernel/Documentation/devicetree/bindings/iio/proximity/as3935.txt
new file mode 100644
index 000000000..ae23dd8da
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/proximity/as3935.txt
@@ -0,0 +1,28 @@
+Austrian Microsystems AS3935 Franklin lightning sensor device driver
+
+Required properties:
+ - compatible: must be "ams,as3935"
+ - reg: SPI chip select number for the device
+ - spi-cpha: SPI Mode 1. Refer to spi/spi-bus.txt for generic SPI
+ slave node bindings.
+ - interrupt-parent : should be the phandle for the interrupt controller
+ - interrupts : the sole interrupt generated by the device
+
+ Refer to interrupt-controller/interrupts.txt for generic
+ interrupt client node bindings.
+
+Optional properties:
+ - ams,tuning-capacitor-pf: Calibration tuning capacitor stepping
+ value 0 - 120pF. This will require using the calibration data from
+ the manufacturer.
+
+Example:
+
+as3935@0 {
+ compatible = "ams,as3935";
+ reg = <0>;
+ spi-cpha;
+ interrupt-parent = <&gpio1>;
+ interrupts = <16 1>;
+ ams,tuning-capacitor-pf = <80>;
+};
diff --git a/kernel/Documentation/devicetree/bindings/iio/sensorhub.txt b/kernel/Documentation/devicetree/bindings/iio/sensorhub.txt
new file mode 100644
index 000000000..8d57571d5
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/sensorhub.txt
@@ -0,0 +1,25 @@
+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
+- interrupt-parent: interrupt parent
+- 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/kernel/Documentation/devicetree/bindings/iio/st-sensors.txt b/kernel/Documentation/devicetree/bindings/iio/st-sensors.txt
new file mode 100644
index 000000000..d2aaca974
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/st-sensors.txt
@@ -0,0 +1,55 @@
+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.
+
+Sensors may also have applicable pin control settings, those use the
+standard bindings from pinctrl/pinctrl-bindings.txt.
+
+Valid compatible strings:
+
+Accelerometers:
+- st,lis3lv02dl-accel
+- st,lsm303dlh-accel
+- st,lsm303dlhc-accel
+- st,lis3dh-accel
+- st,lsm330d-accel
+- st,lsm330dl-accel
+- st,lsm330dlc-accel
+- st,lis331dlh-accel
+- st,lsm303dl-accel
+- st,lsm303dlm-accel
+- st,lsm330-accel
+
+Gyroscopes:
+- st,l3g4200d-gyro
+- st,lsm330d-gyro
+- st,lsm330dl-gyro
+- st,lsm330dlc-gyro
+- st,l3gd20-gyro
+- st,l3g4is-gyro
+- st,lsm330-gyro
+
+Magnetometers:
+- st,lsm303dlhc-magn
+- st,lsm303dlm-magn
+- st,lis3mdl-magn
+
+Pressure sensors:
+- st,lps001wp-press
+- st,lps25h-press
+- st,lps331ap-press