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authorDavid Heidelberg <david@ixit.cz>2021-10-20 02:48:16 +0300
committerRob Herring <robh@kernel.org>2021-10-29 16:42:03 +0300
commita8bc0707e134a090535f76d6bda55af0fac63d3f (patch)
tree38db587acf3a975ceabeaeceb2ec21d2cea092f8 /Documentation/devicetree/bindings/input/cap11xx.txt
parent14d9f6b02648477ced705c54ea6fdf091901e21e (diff)
downloadlinux-a8bc0707e134a090535f76d6bda55af0fac63d3f.tar.xz
dt-bindings: input: microchip,cap11xx: Convert txt bindings to yaml
Convert binding for the Microchip CAP11xx series HW to the YAML syntax. Signed-off-by: David Heidelberg <david@ixit.cz> Link: https://lore.kernel.org/r/20211019234816.32060-1-david@ixit.cz Signed-off-by: Rob Herring <robh@kernel.org>
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-Device tree bindings for Microchip CAP11xx based capacitive touch sensors
-
-The node for this device must be a child of a I2C controller node, as the
-device communication via I2C only.
-
-Required properties:
-
- compatible: Must contain one of:
- "microchip,cap1106"
- "microchip,cap1126"
- "microchip,cap1188"
-
- reg: The I2C slave address of the device.
-
- interrupts: Property describing the interrupt line the
- device's ALERT#/CM_IRQ# pin is connected to.
- The device only has one interrupt source.
-
-Optional properties:
-
- autorepeat: Enables the Linux input system's autorepeat
- feature on the input device.
-
- microchip,sensor-gain: Defines the gain of the sensor circuitry. This
- effectively controls the sensitivity, as a
- smaller delta capacitance is required to
- generate the same delta count values.
- Valid values are 1, 2, 4, and 8.
- By default, a gain of 1 is set.
-
- microchip,irq-active-high: By default the interrupt pin is active low
- open drain. This property allows using the active
- high push-pull output.
-
- linux,keycodes: Specifies an array of numeric keycode values to
- be used for the channels. If this property is
- omitted, KEY_A, KEY_B, etc are used as
- defaults. The array must have exactly six
- entries.
-
-Example:
-
-i2c_controller {
- cap1106@28 {
- compatible = "microchip,cap1106";
- interrupt-parent = <&gpio1>;
- interrupts = <0 0>;
- reg = <0x28>;
- autorepeat;
- microchip,sensor-gain = <2>;
-
- linux,keycodes = <103>, /* KEY_UP */
- <106>, /* KEY_RIGHT */
- <108>, /* KEY_DOWN */
- <105>, /* KEY_LEFT */
- <109>, /* KEY_PAGEDOWN */
- <104>; /* KEY_PAGEUP */
-
- #address-cells = <1>;
- #size-cells = <0>;
-
- usr@0 {
- label = "cap11xx:green:usr0";
- reg = <0>;
- };
-
- usr@1 {
- label = "cap11xx:green:usr1";
- reg = <1>;
- };
-
- alive@2 {
- label = "cap11xx:green:alive";
- reg = <2>;
- linux,default_trigger = "heartbeat";
- };
- };
-}