Add YAML bindings for ep93xx SoC keypad.
Signed-off-by: Nikita Shubin <nikita.shubin@xxxxxxxxxxx>
---
Notes:
v0 -> v1:
- remove almost all but debounce-delay-ms and prescale
- s/ep9301-keypad/ep9307-keypad/ it's actually only for
ep9307, ep9312, ep9315
Krzysztof Kozlowski:
- renamed file
- changed maintainers
- dropped quotes
- dropped clock-names
- use fallback compatible and list all possible compatibles
- fix ident
.../bindings/input/cirrus,ep9307-keypad.yaml | 86 +++++++++++++++++++
1 file changed, 86 insertions(+)
create mode 100644 Documentation/devicetree/bindings/input/cirrus,ep9307-keypad.yaml
diff --git a/Documentation/devicetree/bindings/input/cirrus,ep9307-keypad.yaml b/Documentation/devicetree/bindings/input/cirrus,ep9307-keypad.yaml
new file mode 100644
index 000000000000..c7eb10a84a6b
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/cirrus,ep9307-keypad.yaml
@@ -0,0 +1,86 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/cirrus,ep9307-keypad.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus ep93xx keypad
+
+maintainers:
+ - Alexander Sverdlin <alexander.sverdlin@xxxxxxxxx>
+
+allOf:
+ - $ref: /schemas/input/matrix-keymap.yaml#
+
+description: |
+ The KPP is designed to interface with a keypad matrix with 2-point contact
+ or 3-point contact keys. The KPP is designed to simplify the software task
+ of scanning a keypad matrix. The KPP is capable of detecting, debouncing,
+ and decoding one or multiple keys pressed simultaneously on a keypad.
+
+properties:
+ compatible:
+ oneOf:
+ - const: cirrus,ep9307-keypad
+ - items:
+ - enum:
+ - cirrus,ep9312-keypad
+ - cirrus,ep9315-keypad
+ - const: cirrus,ep9307-keypad
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ cirrus,debounce-delay-ms:
+ description: |
+ Time in microseconds that key must be pressed or
+ released for state change interrupt to trigger.
+
+ cirrus,prescale:
+ description: row/column counter pre-scaler load value
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - linux,keymap
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/cirrus,ep93xx-clock.h>
+ #include <dt-bindings/input/input.h>
+ keypad@800f0000 {
+ compatible = "cirrus,ep9301-keypad";
+ reg = <0x800f0000 0x0c>;
+ interrupt-parent = <&vic0>;
+ interrupts = <29>;
+ clocks = <&syscon EP93XX_CLK_KEYPAD>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&keypad_default_pins>;
+ linux,keymap = <KEY_UP>,
+ <KEY_DOWN>,
+ <KEY_VOLUMEDOWN>,
+ <KEY_HOME>,
+ <KEY_RIGHT>,
+ <KEY_LEFT>,
+ <KEY_ENTER>,
+ <KEY_VOLUMEUP>,
+ <KEY_F6>,
+ <KEY_F8>,
+ <KEY_F9>,
+ <KEY_F10>,
+ <KEY_F1>,
+ <KEY_F2>,
+ <KEY_F3>,
+ <KEY_POWER>;
+ };
--
2.37.4
