This series is needed to avoid key-loss if the GPIOs are connected via a I2C GPIO Mux that introduces additonal latencies between key change and matrix scan. Patch 1, 2 and 6 in this series introduce a performance boost on its own and can be merged separately. Patch 3, 4 and 5 depend on each other. Markus Burri (6): Input: matrix_keypad - move gpio-row init to the init part Input: matrix_keypad - use fsleep for variable delay duration Input: matrix_keypad - add function for reading row state dt-bindings: input: matrix_keypad - add settle time after enable all columns Input: matrix_keypad - add settle time after enable all columns Input: matrix_keypad - detect change during scan .../bindings/input/gpio-matrix-keypad.txt | 2 + drivers/input/keyboard/matrix_keypad.c | 44 ++++++++++++++++--- 2 files changed, 39 insertions(+), 7 deletions(-) -- 2.39.5