Commit | Line | Data |
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86ea5e6b SB |
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 | ||
27469652 | 36 | - wakeup-source: |
86ea5e6b SB |
37 | Usage: optional |
38 | Value type: <bool> | |
39 | Definition: use any event on keypad as wakeup event. | |
71a0151c | 40 | (Legacy property supported: "linux,keypad-wakeup") |
86ea5e6b SB |
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 | }; |