28 lines
958 B
Plaintext
28 lines
958 B
Plaintext
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* TWL4030's Keypad Controller device tree bindings
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TWL4030'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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This binding is based on the matrix-keymap binding with the following
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changes:
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* keypad,num-rows and keypad,num-columns are required.
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Required SoC Specific Properties:
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- compatible: should be one of the following
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- "ti,twl4030-keypad": For controllers compatible with twl4030 keypad
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controller.
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- interrupt: should be one of the following
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- <1>: For controllers compatible with twl4030 keypad controller.
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Example:
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twl_keypad: keypad {
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compatible = "ti,twl4030-keypad";
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interrupts = <1>;
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keypad,num-rows = <8>;
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keypad,num-columns = <8>;
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};
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