[v1,03/12] input: matrix-keypad: rename variables and funcs

Commit Message

Gerhard Sittig June 21, 2013, 6:09 p.m. UTC

mechanical edits before code changes, to reduce diffs later on
- rename the 'work' member of the driver's private data to better
  reflect that it's the work routine which scans the matrix after a
  change of status was detected
- rename the __activate_col() routine to better reflect that it takes
  care of GPIO pins while its caller handles logical matrix lines

Signed-off-by: Gerhard Sittig <[e-mail]>
---
 drivers/input/keyboard/matrix_keypad.c |   24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

Patch

diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c
index 71d7719..5b5f86d 100644
--- a/drivers/input/keyboard/matrix_keypad.c
+++ b/drivers/input/keyboard/matrix_keypad.c
@@ -35,7 +35,7 @@  struct matrix_keypad {
 	DECLARE_BITMAP(disabled_gpios, MATRIX_MAX_ROWS);
 
 	uint32_t last_key_state[MATRIX_MAX_COLS];
-	struct delayed_work work;
+	struct delayed_work work_scan_matrix;
 	spinlock_t lock;
 	bool scan_pending;
 	bool stopped;
@@ -47,8 +47,8 @@  struct matrix_keypad {
  * minmal side effect when scanning other columns, here it is configured to
  * be input, and it should work on most platforms.
  */
-static void __activate_col(const struct matrix_keypad_platform_data *pdata,
-			   int col, bool on)
+static void __activate_col_pin(const struct matrix_keypad_platform_data *pdata,
+			       int col, bool on)
 {
 	bool level_on = !pdata->active_low;
 
@@ -63,7 +63,7 @@  static void __activate_col(const struct matrix_keypad_platform_data *pdata,
 static void activate_col(const struct matrix_keypad_platform_data *pdata,
 			 int col, bool on)
 {
-	__activate_col(pdata, col, on);
+	__activate_col_pin(pdata, col, on);
 
 	if (on && pdata->col_scan_delay_us)
 		udelay(pdata->col_scan_delay_us);
@@ -75,7 +75,7 @@  static void activate_all_cols(const struct matrix_keypad_platform_data *pdata,
 	int col;
 
 	for (col = 0; col < pdata->num_col_gpios; col++)
-		__activate_col(pdata, col, on);
+		__activate_col_pin(pdata, col, on);
 }
 
 static bool row_asserted(const struct matrix_keypad_platform_data *pdata,
@@ -116,8 +116,8 @@  static void disable_row_irqs(struct matrix_keypad *keypad)
  */
 static void matrix_keypad_scan(struct work_struct *work)
 {
-	struct matrix_keypad *keypad =
-		container_of(work, struct matrix_keypad, work.work);
+	struct matrix_keypad *keypad = container_of(work, struct matrix_keypad,
+						    work_scan_matrix.work);
 	struct input_dev *input_dev = keypad->input_dev;
 	const unsigned short *keycodes = input_dev->keycode;
 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;
@@ -189,8 +189,8 @@  static irqreturn_t matrix_keypad_interrupt(int irq, void *id)
 
 	disable_row_irqs(keypad);
 	keypad->scan_pending = true;
-	schedule_delayed_work(&keypad->work,
-		msecs_to_jiffies(keypad->pdata->debounce_ms));
+	schedule_delayed_work(&keypad->work_scan_matrix,
+			      msecs_to_jiffies(keypad->pdata->debounce_ms));
 
 out:
 	spin_unlock_irqrestore(&keypad->lock, flags);
@@ -208,7 +208,7 @@  static int matrix_keypad_start(struct input_dev *dev)
 	 * Schedule an immediate key scan to capture current key state;
 	 * columns will be activated and IRQs be enabled after the scan.
 	 */
-	schedule_delayed_work(&keypad->work, 0);
+	schedule_delayed_work(&keypad->work_scan_matrix, 0);
 
 	return 0;
 }
@@ -219,7 +219,7 @@  static void matrix_keypad_stop(struct input_dev *dev)
 
 	keypad->stopped = true;
 	mb();
-	flush_work(&keypad->work.work);
+	flush_work(&keypad->work_scan_matrix.work);
 	/*
 	 * matrix_keypad_scan() will leave IRQs enabled;
 	 * we should disable them now.
@@ -495,7 +495,7 @@  static int matrix_keypad_probe(struct platform_device *pdev)
 	keypad->pdata = pdata;
 	keypad->row_shift = get_count_order(pdata->num_col_gpios);
 	keypad->stopped = true;
-	INIT_DELAYED_WORK(&keypad->work, matrix_keypad_scan);
+	INIT_DELAYED_WORK(&keypad->work_scan_matrix, matrix_keypad_scan);
 	spin_lock_init(&keypad->lock);
 
 	input_dev->name		= pdev->name;