86 static bool row_asserted(struct matrix_keypad *keypad, int row)  in row_asserted()  argument
88 	return gpiod_get_value_cansleep(keypad->row_gpios[row]);  in row_asserted()
109 	int row;  in read_row_state()  local
112 	for (row = 0; row < keypad->num_row_gpios; row++)  in read_row_state()
113 		row_state |= row_asserted(keypad, row) ? BIT(row) : 0;  in read_row_state()
127 	int row, col, code;  in matrix_keypad_scan()  local
130 	/* read initial row state to detect changes between scan */  in matrix_keypad_scan()
138 	for (row = 0; row < keypad->num_row_gpios; row++)  in matrix_keypad_scan()
139 		gpiod_direction_input(keypad->row_gpios[row]);  in matrix_keypad_scan()
141 	/* assert each column and read the row status out */  in matrix_keypad_scan()
158 		for (row = 0; row < keypad->num_row_gpios; row++) {  in matrix_keypad_scan()
159 			if (!(bits_changed & BIT(row)))  in matrix_keypad_scan()
162 			code = MATRIX_SCAN_CODE(row, col, keypad->row_shift);  in matrix_keypad_scan()
166 					 new_state[col] & (1 << row));  in matrix_keypad_scan()
181 	/* read new row state and detect if value has changed */  in matrix_keypad_scan()
307 	nrow = gpiod_count(&pdev->dev, "row");  in matrix_keypad_init_gpio()
310 		dev_err(&pdev->dev, "missing row or column GPIOs\n");  in matrix_keypad_init_gpio()
340 		keypad->row_gpios[i] = devm_gpiod_get_index(&pdev->dev, "row",  in matrix_keypad_init_gpio()
345 				"failed to request GPIO for ROW%d: %d\n",  in matrix_keypad_init_gpio()
383 				"Unable to acquire interrupt for row %i: %d\n",  in matrix_keypad_setup_interrupts()