1MediaTek MT6397/MT6323 PMIC Keys Device Driver
2
3There are two key functions provided by MT6397/MT6323 PMIC, pwrkey
4and homekey. The key functions are defined as the subnode of the function
5node provided by MT6397/MT6323 PMIC that is being defined as one kind
6of Muti-Function Device (MFD)
7
8For MT6397/MT6323 MFD bindings see:
9Documentation/devicetree/bindings/mfd/mt6397.txt
10
11Required properties:
12- compatible: "mediatek,mt6397-keys" or "mediatek,mt6323-keys"
13- linux,keycodes: See Documentation/devicetree/bindings/input/keys.txt
14
15Optional Properties:
16- wakeup-source: See Documentation/devicetree/bindings/power/wakeup-source.txt
17- mediatek,long-press-mode: Long press key shutdown setting, 1 for
18	pwrkey only, 2 for pwrkey/homekey together, others for disabled.
19- power-off-time-sec: See Documentation/devicetree/bindings/input/keys.txt
20
21Example:
22
23	pmic: mt6397 {
24		compatible = "mediatek,mt6397";
25
26		...
27
28		mt6397keys: mt6397keys {
29			compatible = "mediatek,mt6397-keys";
30			mediatek,long-press-mode = <1>;
31			power-off-time-sec = <0>;
32
33			power {
34				linux,keycodes = <116>;
35				wakeup-source;
36			};
37
38			home {
39				linux,keycodes = <114>;
40			};
41		};
42
43	};
44