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: Should be one of:
13	- "mediatek,mt6397-keys"
14	- "mediatek,mt6323-keys"
15	- "mediatek,mt6358-keys"
16- linux,keycodes: See Documentation/devicetree/bindings/input/input.yaml
17
18Optional Properties:
19- wakeup-source: See Documentation/devicetree/bindings/power/wakeup-source.txt
20- mediatek,long-press-mode: Long press key shutdown setting, 1 for
21	pwrkey only, 2 for pwrkey/homekey together, others for disabled.
22- power-off-time-sec: See Documentation/devicetree/bindings/input/input.yaml
23
24Example:
25
26	pmic: mt6397 {
27		compatible = "mediatek,mt6397";
28
29		...
30
31		mt6397keys: mt6397keys {
32			compatible = "mediatek,mt6397-keys";
33			mediatek,long-press-mode = <1>;
34			power-off-time-sec = <0>;
35
36			power {
37				linux,keycodes = <116>;
38				wakeup-source;
39			};
40
41			home {
42				linux,keycodes = <114>;
43			};
44		};
45
46	};
47