[v20,1/3] dt-bindings: input: Add bindings for Mediatek matrix keypad

Commit Message

Mattijs Korpershoek Jan. 27, 2022, 11:15 a.m. UTC

From: "fengping.yu" <[e-mail]>

This patch add devicetree bindings for Mediatek matrix keypad driver.

Signed-off-by: fengping.yu <[e-mail]>
Reviewed-by: Marco Felsch <[e-mail]>
Signed-off-by: Mattijs Korpershoek <[e-mail]>
---
 .../input/mediatek,mt6779-keypad.yaml         | 77 +++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml

Comments

Rob Herring (Arm) Feb. 1, 2022, 11:46 p.m. UTC | #1

On Thu, 27 Jan 2022 12:15:24 +0100, Mattijs Korpershoek wrote:
> From: "fengping.yu" <[e-mail]>
> 
> This patch add devicetree bindings for Mediatek matrix keypad driver.
> 
> Signed-off-by: fengping.yu <[e-mail]>
> Reviewed-by: Marco Felsch <[e-mail]>
> Signed-off-by: Mattijs Korpershoek <[e-mail]>
> ---
>  .../input/mediatek,mt6779-keypad.yaml         | 77 +++++++++++++++++++
>  1 file changed, 77 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml
> 

Reviewed-by: Rob Herring <[e-mail]>

Patch

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..b1770640f94b
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml
@@ -0,0 +1,77 @@ 
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%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 <[e-mail]>
+
+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:
+    items:
+      - const: kpd
+
+  wakeup-source:
+    description: use any event on keypad as wakeup event
+    type: boolean
+
+  debounce-delay-ms:
+    maximum: 256
+    default: 16
+
+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>;
+
+        keyboard@10010000 {
+          compatible = "mediatek,mt6779-keypad";
+          reg = <0 0x10010000 0 0x1000>;
+          interrupts = <GIC_SPI 75 IRQ_TYPE_EDGE_FALLING>;
+          clocks = <&clk26m>;
+          clock-names = "kpd";
+        };
+    };