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| author | Daniel Tang <dt.tangr@gmail.com> | 2013-05-30 13:16:10 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2013-06-04 09:17:25 -0700 |
| commit | fc4f314618923c2bef708a535f8483fa7f7dbad2 (patch) | |
| tree | afc0f99990ef6fa758bfad84d83ff1ff6e1ef693 /Documentation/devicetree | |
| parent | 9b5f953ddc3247dd0c3d0cafa4247be10d5c05db (diff) | |
Input: add TI-Nspire keypad support
This is a driver for the keypads found on the TI-Nspire series calculators.
Signed-off-by: Daniel Tang <dt.tangr@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/input/ti,nspire-keypad.txt | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/ti,nspire-keypad.txt b/Documentation/devicetree/bindings/input/ti,nspire-keypad.txt new file mode 100644 index 000000000000..513d94d6e899 --- /dev/null +++ b/Documentation/devicetree/bindings/input/ti,nspire-keypad.txt @@ -0,0 +1,60 @@ +TI-NSPIRE Keypad + +Required properties: +- compatible: Compatible property value should be "ti,nspire-keypad". + +- reg: Physical base address of the peripheral and length of memory mapped + region. + +- interrupts: The interrupt number for the peripheral. + +- scan-interval: How often to scan in us. Based on a APB speed of 33MHz, the + maximum and minimum delay time is ~2000us and ~500us respectively + +- row-delay: How long to wait before scanning each row. + +- clocks: The clock this peripheral is attached to. + +- linux,keymap: The keymap to use + (see Documentation/devicetree/bindings/input/matrix-keymap.txt) + +Optional properties: +- active-low: Specify that the keypad is active low (i.e. logical low signifies + a key press). + +Example: + +input { + compatible = "ti,nspire-keypad"; + reg = <0x900E0000 0x1000>; + interrupts = <16>; + + scan-interval = <1000>; + row-delay = <200>; + + clocks = <&apb_pclk>; + + linux,keymap = < + 0x0000001c 0x0001001c 0x00040039 + 0x0005002c 0x00060015 0x0007000b + 0x0008000f 0x0100002d 0x01010011 + 0x0102002f 0x01030004 0x01040016 + 0x01050014 0x0106001f 0x01070002 + 0x010a006a 0x02000013 0x02010010 + 0x02020019 0x02030007 0x02040018 + 0x02050031 0x02060032 0x02070005 + 0x02080028 0x0209006c 0x03000026 + 0x03010025 0x03020024 0x0303000a + 0x03040017 0x03050023 0x03060022 + 0x03070008 0x03080035 0x03090069 + 0x04000021 0x04010012 0x04020020 + 0x0404002e 0x04050030 0x0406001e + 0x0407000d 0x04080037 0x04090067 + 0x05010038 0x0502000c 0x0503001b + 0x05040034 0x0505001a 0x05060006 + 0x05080027 0x0509000e 0x050a006f + 0x0600002b 0x0602004e 0x06030068 + 0x06040003 0x0605006d 0x06060009 + 0x06070001 0x0609000f 0x0708002a + 0x0709001d 0x070a0033 >; +}; |