This patch adds the device tree binding documentation for the MediaTek
pmic keys found on PMIC MT6397/MT6323.
Signed-off-by: Chen Zhong <chen.zhong@xxxxxxxxxxxx>
---
.../devicetree/bindings/input/mtk-pmic-keys.txt | 36 ++++++++++++++++++++
1 file changed, 36 insertions(+)
create mode 100644 Documentation/devicetree/bindings/input/mtk-pmic-keys.txt
diff --git a/Documentation/devicetree/bindings/input/mtk-pmic-keys.txt b/Documentation/devicetree/bindings/input/mtk-pmic-keys.txt
new file mode 100644
index 0000000..c5b230f
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/mtk-pmic-keys.txt
@@ -0,0 +1,36 @@
+MediaTek MT6397/MT6323 PMIC Keys Device Driver
+
+There are two key functions provided by MT6397/MT6323 PMIC, pwrkey
+and homekey. The key functions are defined as the subnode of the function
+node provided by MT6397/MT6323 PMIC that is being defined as one kind
+of Muti-Function Device (MFD)
+
+For MT6397/MT6323 MFD bindings see:
+Documentation/devicetree/bindings/mfd/mt6397.txt
+
+Required properties:
+- compatible: "mediatek,mt6397-keys" or "mediatek,mt6323-keys"
+- mediatek,pwrkey-code: Keycode of pwrkey
+
+Optional Properties:
+- mediatek,homekey-code: Keycode of homekey
+- mediatek,long-press-mode: Long press key shutdown setting, 1 for
+ pwrkey only, 2 for pwrkey/homekey together, others for disabled.
+- mediatek,long-press-duration: Long press key shutdown duration setting,
+ 0/1/2/3 for 8/11/14/5 seconds.
+
+Example:
+
+ pmic: mt6397 {
+ compatible = "mediatek,mt6397";
+
+ ...
+
+ mt6397keys: mt6397keys {
+ compatible = "mediatek,mt6397-keys";
+ mediatek,pwrkey-code = <116>;
+ mediatek,homekey-code = <114>;
+ mediatek,long-press-mode = <1>;
+ mediatek,long-press-duration = <0>;
+ };
+ };
\ No newline at end of file
--
1.7.9.5
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