Add YAML bindings ep93xx SoC.
Signed-off-by: Nikita Shubin <nikita.shubin@xxxxxxxxxxx>
---
Notes:
Linus Walleij:
- replaced hex with proper <KEY_UP>, etc
.../bindings/input/cirrus,ep93xx-keypad.yaml | 123 ++++++++++++++++++
1 file changed, 123 insertions(+)
create mode 100644 Documentation/devicetree/bindings/input/cirrus,ep93xx-keypad.yaml
diff --git a/Documentation/devicetree/bindings/input/cirrus,ep93xx-keypad.yaml b/Documentation/devicetree/bindings/input/cirrus,ep93xx-keypad.yaml
new file mode 100644
index 000000000000..0310114de22e
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/cirrus,ep93xx-keypad.yaml
@@ -0,0 +1,123 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/cirrus,ep93xx-keypad.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus ep93xx keypad
+
+maintainers:
+ - Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
+ - 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:
+ enum:
+ - cirrus,ep9301-keypad
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ enum:
+ - ep93xx-keypad
+
+ debounce:
+ description: |
+ Time in microseconds that key must be pressed or
+ released for state change interrupt to trigger.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ prescale:
+ description: row/column counter pre-scaler load value
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ clk-rate:
+ description: clock rate setting
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ disable-3-key:
+ type: boolean
+ description:
+ Disable 3 Key reset. Setting this disables the three key reset
+ output to the watchdog reset block.
+
+ diag-mode:
+ type: boolean
+ description:
+ Key scan diagnostic mode. Setting this allows key scanning to be
+ directly controlled through the key register by writes from the
+ ARM Core.
+
+ back-drive:
+ type: boolean
+ description:
+ Key scan back driving enable. Setting this enables the key
+ scanning logic to back drive the row and column pins of the
+ chip high during the first two column counts in the
+ row/column counter.
+
+ test-mode:
+ type: boolean
+ description:
+ Test mode. When this is set, the counter RC_COUNT is advanced
+ by 8 counts when EN is active. The effect is that only column 0
+ is checked in each row. This test mode allows a faster test
+ of the ROW pins.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - 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>;
+ clock-names = "ep93xx-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>;
+ };
+
--
2.39.2
