[PATCH v3 2/7] Input: matrix_keypad - add function for reading row state
flat view
STALE657d
SUPERSEDED
From: Markus Burri <hidden>
Date: 2025-01-07 14:03:10
Also in:
linux-devicetree, lkml
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Dmitry Torokhov, Linus Torvalds
Status: Superseded by v6 (posted 2025-02-26). [go to v6]
Revision v3 (6 revisions archived).
Revisions (6)
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 <redacted> --- drivers/input/keyboard/matrix_keypad.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c
index 5571d2e..90148d3 100644
--- a/drivers/input/keyboard/matrix_keypad.c
+++ b/drivers/input/keyboard/matrix_keypad.c@@ -100,6 +100,16 @@ 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 */
@@ -125,9 +135,7 @@ 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); }
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2.39.5