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Input: omap4-keypad - add device tree support
Add device tree support for omap4 keypad driver and update the Documentation with omap4 keypad device tree binding information. Tested on omap4430 sdp. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Sourav Poddar
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Dmitry Torokhov
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Jul 18, 2012
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* TI's Keypad Controller device tree bindings | ||
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TI's Keypad controller is used to interface a SoC with a matrix-type | ||
keypad device. The keypad controller supports multiple row and column lines. | ||
A key can be placed at each intersection of a unique row and a unique column. | ||
The keypad controller can sense a key-press and key-release and report the | ||
event using a interrupt to the cpu. | ||
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Required SoC Specific Properties: | ||
- compatible: should be one of the following | ||
- "ti,omap4-keypad": For controllers compatible with omap4 keypad | ||
controller. | ||
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Required Board Specific Properties, in addition to those specified by | ||
the shared matrix-keyboard bindings: | ||
- keypad,num-rows: Number of row lines connected to the keypad | ||
controller. | ||
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- keypad,num-columns: Number of column lines connected to the | ||
keypad controller. | ||
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Optional Properties specific to linux: | ||
- linux,keypad-no-autorepeat: do no enable autorepeat feature. | ||
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Example: | ||
keypad@4ae1c000{ | ||
compatible = "ti,omap4-keypad"; | ||
keypad,num-rows = <2>; | ||
keypad,num-columns = <8>; | ||
linux,keypad-no-autorepeat; | ||
}; |
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