From: Yassin Jaffer <yassinjaffer@xxxxxxxxx>
Signed-off-by: Yassin Jaffer <yassinjaffer@xxxxxxxxx>
---
.../devicetree/bindings/input/sun4i-keypad.txt | 56 ++++++++++++++++++++++
1 file changed, 56 insertions(+)
create mode 100644 Documentation/devicetree/bindings/input/sun4i-keypad.txt
diff --git a/Documentation/devicetree/bindings/input/sun4i-keypad.txt b/Documentation/devicetree/bindings/input/sun4i-keypad.txt
new file mode 100644
index 0000000..60ed0f2
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/sun4i-keypad.txt
@@ -0,0 +1,56 @@
+Allwinner sun4i keypad
+------------------------------------------------
+
+Required properties:
+ - compatible: "allwinner,sun4i-a10-keypad"
+ - reg: mmio address range of the chip
+ - interrupts: interrupt to which the chip is connected
+ - clocks : shall reference keypad controller clocks.
+ - clock-names : keypad controller internal clock names. Shall contain :
+ * "apb" : APB gating clock
+ * "keypad" : keypad controller clock
+
+Required Board Specific Properties:
+- pinctrl-names: The definition can be found at
+pinctrl/pinctrl-bindings.txt.
+
+- pinctrl-0: The definition can be found at
+pinctrl/pinctrl-bindings.txt.
+
+- linux,keymap: The definition can be found at
+bindings/input/matrix-keymap.txt.
+
+Optional properties:
+ - scan-cycle: device specific scan cycle
+ - debounce-cycle: device specific debounce cycle
+ - autorepeat: If specified device will autorepeat
+
+Example:
+
+#include <dt-bindings/input/input.h>
+
+ kp: kp@01c23000 {
+ compatible = "allwinner,sun4i-a10-keypad";
+ reg = <0x01c23000 0x400>;
+ interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&apb0_gates 10>, <&keypad_clk>;
+ clock-names = "apb", "keypad";
+ pinctrl-names = "default";
+ pinctrl-0 = <&keypad_rows>, <&keypad_cols>;
+ linux,keymap = <0x00000067 /* KEY_UP */
+ 0x0001006c /* KEY_DOWN */
+ 0x00020072 /* KEY_VOLUMEDOWN */
+ 0x00030066 /* KEY_HOME */
+ 0x0100006a /* KEY_RIGHT */
+ 0x01010069 /* KEY_LEFT */
+ 0x0102001c /* KEY_ENTER */
+ 0x01030073 /* KEY_VOLUMEUP */
+ 0x02000040 /* KEY_F6 */
+ 0x02010042 /* KEY_F8 */
+ 0x02020043 /* KEY_F9 */
+ 0x02030044 /* KEY_F10 */
+ 0x0300003b /* KEY_F1 */
+ 0x0301003c /* KEY_F2 */
+ 0x0302003d /* KEY_F3 */
+ 0x03030074>; /* KEY_POWER */
+ };
--
1.9.1
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