Input: matrix_keypad - add support for clustered irq

This one adds support of a combined irq source for the whole matrix keypad.
This can be useful if all rows and columns of the keypad are e.g. connected
to a GPIO expander, which only has one interrupt line for all events on
every single GPIO.

Signed-off-by: Luotao Fu <[email protected]>
Acked-by: Eric Miao <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>
2 files changed