diff options
| author | Markus Burri <markus.burri@mt.com> | 2025-02-26 18:28:41 +0300 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2025-04-10 00:21:38 +0300 |
| commit | a37af8e8c1dc25e097ae1bce98980ad75d5921bc (patch) | |
| tree | b4d73d1c2346eb590a5707718a5704b177f6cfeb /drivers/input | |
| parent | 4d395cb071a343196ca524d3694790f06978fe91 (diff) | |
| download | linux-a37af8e8c1dc25e097ae1bce98980ad75d5921bc.tar.xz | |
Input: matrix_keypad - add function for reading row state
Move the evaluation of a row state into separate function.
It will be also used by a change later in this series.
Signed-off-by: Markus Burri <markus.burri@mt.com>
Reviewed-by: Manuel Traut <manuel.traut@mt.com>
Link: https://lore.kernel.org/r/20250226152843.43932-2-markus.burri@mt.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/keyboard/matrix_keypad.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c index e46473cb817c..fdb3499660a3 100644 --- a/drivers/input/keyboard/matrix_keypad.c +++ b/drivers/input/keyboard/matrix_keypad.c @@ -104,6 +104,16 @@ static void disable_row_irqs(struct matrix_keypad *keypad) disable_irq_nosync(keypad->row_irqs[i]); } +static uint32_t read_row_state(struct matrix_keypad *keypad) +{ + int row; + u32 row_state = 0; + + for (row = 0; row < keypad->num_row_gpios; row++) + row_state |= row_asserted(keypad, row) ? BIT(row) : 0; + return row_state; +} + /* * This gets the keys from keyboard and reports it to input subsystem */ @@ -129,9 +139,7 @@ static void matrix_keypad_scan(struct work_struct *work) activate_col(keypad, col, true); - for (row = 0; row < keypad->num_row_gpios; row++) - new_state[col] |= - row_asserted(keypad, row) ? BIT(row) : 0; + new_state[col] = read_row_state(keypad); activate_col(keypad, col, false); } |