Add devicetree support for the PinePhone keyboard case, which provides a matrix keyboard interface and a proxied I2C bus. Signed-off-by: Samuel Holland <samuel@xxxxxxxxxxxx> --- .../input/pine64,pinephone-keyboard.yaml | 90 +++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/pine64,pinephone-keyboard.yaml diff --git a/Documentation/devicetree/bindings/input/pine64,pinephone-keyboard.yaml b/Documentation/devicetree/bindings/input/pine64,pinephone-keyboard.yaml new file mode 100644 index 000000000000..00f084b263f0 --- /dev/null +++ b/Documentation/devicetree/bindings/input/pine64,pinephone-keyboard.yaml @@ -0,0 +1,90 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/input/pine64,pinephone-keyboard.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Pine64 PinePhone keyboard device tree bindings + +maintainers: + - Samuel Holland <samuel@xxxxxxxxxxxx> + +description: + A keyboard accessory is available for the Pine64 PinePhone and PinePhone Pro. + It connects via I2C, providing a raw scan matrix, a flashing interface, and a + subordinate I2C bus for communication with a battery charger IC. + +allOf: + - $ref: /schemas/input/matrix-keymap.yaml# + +properties: + compatible: + const: pine64,pinephone-keyboard + + reg: + const: 0x15 + + interrupts: + maxItems: 1 + + linux,fn-keymap: + $ref: /schemas/input/matrix-keymap.yaml#/properties/linux,keymap + description: keymap used when the Fn key is pressed + + wakeup-source: true + + i2c-bus: + $ref: /schemas/i2c/i2c-controller.yaml# + +dependencies: + linux,fn-keymap: [ 'keypad,num-columns', 'keypad,num-rows' ] + linux,keymap: [ 'keypad,num-columns', 'keypad,num-rows' ] + +required: + - compatible + - reg + - interrupts + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/input/input.h> + #include <dt-bindings/interrupt-controller/irq.h> + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + keyboard@15 { + compatible = "pine64,pinephone-keyboard"; + reg = <0x15>; + interrupt-parent = <&r_pio>; + interrupts = <0 12 IRQ_TYPE_EDGE_FALLING>; /* PL12 */ + keypad,num-rows = <6>; + keypad,num-columns = <12>; + linux,fn-keymap = <MATRIX_KEY(0, 0, KEY_FN_ESC) + MATRIX_KEY(0, 1, KEY_F1) + MATRIX_KEY(0, 2, KEY_F2) + /* ... */ + MATRIX_KEY(5, 2, KEY_FN) + MATRIX_KEY(5, 3, KEY_LEFTALT) + MATRIX_KEY(5, 5, KEY_RIGHTALT)>; + linux,keymap = <MATRIX_KEY(0, 0, KEY_ESC) + MATRIX_KEY(0, 1, KEY_1) + MATRIX_KEY(0, 2, KEY_2) + /* ... */ + MATRIX_KEY(5, 2, KEY_FN) + MATRIX_KEY(5, 3, KEY_LEFTALT) + MATRIX_KEY(5, 5, KEY_RIGHTALT)>; + + i2c-bus { + #address-cells = <1>; + #size-cells = <0>; + + charger@75 { + reg = <0x75>; + }; + }; + }; + }; -- 2.33.1
