linux_dsm_epyc7002/Documentation/devicetree/bindings/input/tca8418_keypad.txt
Simon Glass 1d0b1c74ed input: Extend matrix-keypad device tree binding
Some matrix keypad drivers can support different numbers of rows and
columns. Add a generic binding for these.

Implementation note:

In order to implement this binding in the kernel, we will need to modify
matrix_keypad_() to look up the number of rows and cols in
the keymap. Perhaps this could be done by passing 0 for these parameters?
Many of the parameters can already be set to NULL. Ick.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2013-02-08 12:58:40 +00:00

11 lines
320 B
Plaintext

This binding is based on the matrix-keymap binding with the following
changes:
keypad,num-rows and keypad,num-columns are required.
Required properties:
- compatible: "ti,tca8418"
- reg: the I2C address
- interrupts: IRQ line number, should trigger on falling edge
- linux,keymap: Keys definitions, see keypad-matrix.