mirror of https://gitee.com/openkylin/linux.git
32 lines
1.0 KiB
Plaintext
32 lines
1.0 KiB
Plaintext
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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
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keypad device. The keypad controller supports multiple row and column lines.
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A key can be placed at each intersection of a unique row and a unique column.
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The keypad controller can sense a key-press and key-release and report the
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event using a interrupt to the cpu.
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Required SoC Specific Properties:
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- compatible: should be one of the following
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- "ti,omap4-keypad": For controllers compatible with omap4 keypad
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controller.
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Required Board Specific Properties, in addition to those specified by
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the shared matrix-keyboard bindings:
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- keypad,num-rows: Number of row lines connected to the keypad
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controller.
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- keypad,num-columns: Number of column lines connected to the
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keypad controller.
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Optional Properties specific to linux:
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- linux,keypad-no-autorepeat: do no enable autorepeat feature.
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Example:
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keypad@4ae1c000{
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compatible = "ti,omap4-keypad";
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keypad,num-rows = <2>;
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keypad,num-columns = <8>;
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linux,keypad-no-autorepeat;
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};
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