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Documentation / devicetree / bindings / input / qcom,pm8xxx-keypad.txt




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Based on kernel version 4.8. Page generated on 2016-10-06 23:12 EST.

1	Qualcomm PM8xxx PMIC Keypad
2	
3	PROPERTIES
4	
5	- compatible:
6		Usage: required
7		Value type: <string>
8		Definition: must be one of:
9			    "qcom,pm8058-keypad"
10			    "qcom,pm8921-keypad"
11	
12	- reg:
13		Usage: required
14		Value type: <prop-encoded-array>
15		Definition: address of keypad control register
16	
17	- interrupts:
18		Usage: required
19		Value type: <prop-encoded-array>
20		Definition: the first interrupt specifies the key sense interrupt
21			    and the second interrupt specifies the key stuck interrupt.
22			    The format of the specifier is defined by the binding
23			    document describing the node's interrupt parent.
24	
25	- linux,keymap:
26		Usage: required
27		Value type: <prop-encoded-array>
28		Definition: the linux keymap. More information can be found in
29			    input/matrix-keymap.txt.
30	
31	- linux,keypad-no-autorepeat:
32		Usage: optional
33		Value type: <bool>
34		Definition: don't enable autorepeat feature.
35	
36	- wakeup-source:
37		Usage: optional
38		Value type: <bool>
39		Definition: use any event on keypad as wakeup event.
40			    (Legacy property supported: "linux,keypad-wakeup")
41	
42	- keypad,num-rows:
43		Usage: required
44		Value type: <u32>
45		Definition: number of rows in the keymap. More information can be found
46			    in input/matrix-keymap.txt.
47	
48	- keypad,num-columns:
49		Usage: required
50		Value type: <u32>
51		Definition: number of columns in the keymap. More information can be
52			    found in input/matrix-keymap.txt.
53	
54	- debounce:
55		Usage: optional
56		Value type: <u32>
57		Definition: time in microseconds that key must be pressed or release
58			    for key sense interrupt to trigger.
59	
60	- scan-delay:
61		Usage: optional
62		Value type: <u32>
63		Definition: time in microseconds to pause between successive scans
64			    of the matrix array.
65	
66	- row-hold:
67		Usage: optional
68		Value type: <u32>
69		Definition: time in nanoseconds to pause between scans of each row in
70			    the matrix array.
71	
72	EXAMPLE
73	
74		keypad@148 {
75			compatible = "qcom,pm8921-keypad";
76			reg = <0x148>;
77			interrupt-parent = <&pmicintc>;
78			interrupts = <74 1>, <75 1>;
79			linux,keymap = <
80				MATRIX_KEY(0, 0, KEY_VOLUMEUP)
81				MATRIX_KEY(0, 1, KEY_VOLUMEDOWN)
82				MATRIX_KEY(0, 2, KEY_CAMERA_FOCUS)
83				MATRIX_KEY(0, 3, KEY_CAMERA)
84				>;
85			keypad,num-rows = <1>;
86			keypad,num-columns = <5>;
87			debounce = <15>;
88			scan-delay = <32>;
89			row-hold = <91500>;
90		};
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