From: "fengping.yu" <fengping.yu@xxxxxxxxxxxx> This patch add devicetree bindings for Mediatek matrix keypad driver. Signed-off-by: fengping.yu <fengping.yu@xxxxxxxxxxxx> Reviewed-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx> Signed-off-by: Mattijs Korpershoek <mkorpershoek@xxxxxxxxxxxx> --- .../input/mediatek,mt6779-keypad.yaml | 80 +++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml diff --git a/Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml b/Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml new file mode 100644 index 000000000000..2c76029224a0 --- /dev/null +++ b/Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml @@ -0,0 +1,80 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/input/mediatek,mt6779-keypad.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Mediatek's Keypad Controller device tree bindings + +maintainers: + - Fengping Yu <fengping.yu@xxxxxxxxxxxx> + +allOf: + - $ref: "/schemas/input/matrix-keymap.yaml#" + +description: | + Mediatek's Keypad controller is used to interface a SoC with a matrix-type + keypad device. The keypad controller supports multiple row and column lines. + A key can be placed at each intersection of a unique row and a unique column. + The keypad controller can sense a key-press and key-release and report the + event using a interrupt to the cpu. + +properties: + compatible: + oneOf: + - const: mediatek,mt6779-keypad + - items: + - enum: + - mediatek,mt6873-keypad + - const: mediatek,mt6779-keypad + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + description: Names of the clocks listed in clocks property in the same order + items: + - const: kpd + + wakeup-source: + description: use any event on keypad as wakeup event + type: boolean + + mediatek,debounce-us: + description: | + Debounce interval in microseconds, if not specified, the default + value is 16000 + maximum: 256000 + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + #include <dt-bindings/input/input.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + + soc { + #address-cells = <2>; + #size-cells = <2>; + + kp@10010000 { + compatible = "mediatek,mt6779-keypad"; + reg = <0 0x10010000 0 0x1000>; + interrupts = <GIC_SPI 75 IRQ_TYPE_EDGE_FALLING>; + clocks = <&clk26m>; + clock-names = "kpd"; + }; + }; -- 2.32.0
