27 	const struct matrix_keypad_platform_data *pdata;  member
47 static void __activate_col(const struct matrix_keypad_platform_data *pdata,  in __activate_col()  argument
50 	bool level_on = !pdata->active_low;  in __activate_col()
53 		gpio_direction_output(pdata->col_gpios[col], level_on);  in __activate_col()
55 		gpio_set_value_cansleep(pdata->col_gpios[col], !level_on);  in __activate_col()
56 		if (!pdata->drive_inactive_cols)  in __activate_col()
57 			gpio_direction_input(pdata->col_gpios[col]);  in __activate_col()
61 static void activate_col(const struct matrix_keypad_platform_data *pdata,  in activate_col()  argument
64 	__activate_col(pdata, col, on);  in activate_col()
66 	if (on && pdata->col_scan_delay_us)  in activate_col()
67 		udelay(pdata->col_scan_delay_us);  in activate_col()
70 static void activate_all_cols(const struct matrix_keypad_platform_data *pdata,  in activate_all_cols()  argument
75 	for (col = 0; col < pdata->num_col_gpios; col++)  in activate_all_cols()
76 		__activate_col(pdata, col, on);  in activate_all_cols()
79 static bool row_asserted(const struct matrix_keypad_platform_data *pdata,  in row_asserted()  argument
82 	return gpio_get_value_cansleep(pdata->row_gpios[row]) ?  in row_asserted()
83 			!pdata->active_low : pdata->active_low;  in row_asserted()
88 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in enable_row_irqs()  local
91 	if (pdata->clustered_irq > 0)  in enable_row_irqs()
92 		enable_irq(pdata->clustered_irq);  in enable_row_irqs()
94 		for (i = 0; i < pdata->num_row_gpios; i++)  in enable_row_irqs()
95 			enable_irq(gpio_to_irq(pdata->row_gpios[i]));  in enable_row_irqs()
101 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in disable_row_irqs()  local
104 	if (pdata->clustered_irq > 0)  in disable_row_irqs()
105 		disable_irq_nosync(pdata->clustered_irq);  in disable_row_irqs()
107 		for (i = 0; i < pdata->num_row_gpios; i++)  in disable_row_irqs()
108 			disable_irq_nosync(gpio_to_irq(pdata->row_gpios[i]));  in disable_row_irqs()
121 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in matrix_keypad_scan()  local
126 	activate_all_cols(pdata, false);  in matrix_keypad_scan()
130 	for (row = 0; row < pdata->num_row_gpios; row++)  in matrix_keypad_scan()
131 		gpio_direction_input(pdata->row_gpios[row]);  in matrix_keypad_scan()
134 	for (col = 0; col < pdata->num_col_gpios; col++) {  in matrix_keypad_scan()
136 		activate_col(pdata, col, true);  in matrix_keypad_scan()
138 		for (row = 0; row < pdata->num_row_gpios; row++)  in matrix_keypad_scan()
140 				row_asserted(pdata, row) ? (1 << row) : 0;  in matrix_keypad_scan()
142 		activate_col(pdata, col, false);  in matrix_keypad_scan()
145 	for (col = 0; col < pdata->num_col_gpios; col++) {  in matrix_keypad_scan()
152 		for (row = 0; row < pdata->num_row_gpios; row++) {  in matrix_keypad_scan()
167 	activate_all_cols(pdata, true);  in matrix_keypad_scan()
194 		msecs_to_jiffies(keypad->pdata->debounce_ms));  in matrix_keypad_interrupt()
235 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in matrix_keypad_enable_wakeup()  local
239 	if (pdata->clustered_irq > 0) {  in matrix_keypad_enable_wakeup()
240 		if (enable_irq_wake(pdata->clustered_irq) == 0)  in matrix_keypad_enable_wakeup()
244 		for (i = 0; i < pdata->num_row_gpios; i++) {  in matrix_keypad_enable_wakeup()
246 				gpio = pdata->row_gpios[i];  in matrix_keypad_enable_wakeup()
257 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in matrix_keypad_disable_wakeup()  local
261 	if (pdata->clustered_irq > 0) {  in matrix_keypad_disable_wakeup()
263 			disable_irq_wake(pdata->clustered_irq);  in matrix_keypad_disable_wakeup()
267 		for (i = 0; i < pdata->num_row_gpios; i++) {  in matrix_keypad_disable_wakeup()
269 				gpio = pdata->row_gpios[i];  in matrix_keypad_disable_wakeup()
308 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in matrix_keypad_init_gpio()  local
312 	for (i = 0; i < pdata->num_col_gpios; i++) {  in matrix_keypad_init_gpio()
313 		err = gpio_request(pdata->col_gpios[i], "matrix_kbd_col");  in matrix_keypad_init_gpio()
317 				pdata->col_gpios[i], i);  in matrix_keypad_init_gpio()
321 		gpio_direction_output(pdata->col_gpios[i], !pdata->active_low);  in matrix_keypad_init_gpio()
324 	for (i = 0; i < pdata->num_row_gpios; i++) {  in matrix_keypad_init_gpio()
325 		err = gpio_request(pdata->row_gpios[i], "matrix_kbd_row");  in matrix_keypad_init_gpio()
329 				pdata->row_gpios[i], i);  in matrix_keypad_init_gpio()
333 		gpio_direction_input(pdata->row_gpios[i]);  in matrix_keypad_init_gpio()
336 	if (pdata->clustered_irq > 0) {  in matrix_keypad_init_gpio()
337 		err = request_any_context_irq(pdata->clustered_irq,  in matrix_keypad_init_gpio()
339 				pdata->clustered_irq_flags,  in matrix_keypad_init_gpio()
347 		for (i = 0; i < pdata->num_row_gpios; i++) {  in matrix_keypad_init_gpio()
349 					gpio_to_irq(pdata->row_gpios[i]),  in matrix_keypad_init_gpio()
357 					pdata->row_gpios[i]);  in matrix_keypad_init_gpio()
369 		free_irq(gpio_to_irq(pdata->row_gpios[i]), keypad);  in matrix_keypad_init_gpio()
370 	i = pdata->num_row_gpios;  in matrix_keypad_init_gpio()
373 		gpio_free(pdata->row_gpios[i]);  in matrix_keypad_init_gpio()
374 	i = pdata->num_col_gpios;  in matrix_keypad_init_gpio()
377 		gpio_free(pdata->col_gpios[i]);  in matrix_keypad_init_gpio()
384 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in matrix_keypad_free_gpio()  local
387 	if (pdata->clustered_irq > 0) {  in matrix_keypad_free_gpio()
388 		free_irq(pdata->clustered_irq, keypad);  in matrix_keypad_free_gpio()
390 		for (i = 0; i < pdata->num_row_gpios; i++)  in matrix_keypad_free_gpio()
391 			free_irq(gpio_to_irq(pdata->row_gpios[i]), keypad);  in matrix_keypad_free_gpio()
394 	for (i = 0; i < pdata->num_row_gpios; i++)  in matrix_keypad_free_gpio()
395 		gpio_free(pdata->row_gpios[i]);  in matrix_keypad_free_gpio()
397 	for (i = 0; i < pdata->num_col_gpios; i++)  in matrix_keypad_free_gpio()
398 		gpio_free(pdata->col_gpios[i]);  in matrix_keypad_free_gpio()
405 	struct matrix_keypad_platform_data *pdata;  in matrix_keypad_parse_dt()  local
415 	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);  in matrix_keypad_parse_dt()
416 	if (!pdata) {  in matrix_keypad_parse_dt()
421 	pdata->num_row_gpios = nrow = gpiod_count(dev, "row");  in matrix_keypad_parse_dt()
422 	pdata->num_col_gpios = ncol = gpiod_count(dev, "col");  in matrix_keypad_parse_dt()
428 	pdata->no_autorepeat = of_property_read_bool(np, "linux,no-autorepeat");  in matrix_keypad_parse_dt()
430 	pdata->wakeup = of_property_read_bool(np, "wakeup-source") ||  in matrix_keypad_parse_dt()
433 	pdata->active_low = of_property_read_bool(np, "gpio-activelow");  in matrix_keypad_parse_dt()
435 	pdata->drive_inactive_cols =  in matrix_keypad_parse_dt()
438 	of_property_read_u32(np, "debounce-delay-ms", &pdata->debounce_ms);  in matrix_keypad_parse_dt()
440 						&pdata->col_scan_delay_us);  in matrix_keypad_parse_dt()
443 			     pdata->num_row_gpios + pdata->num_col_gpios,  in matrix_keypad_parse_dt()
465 	pdata->row_gpios = gpios;  in matrix_keypad_parse_dt()
466 	pdata->col_gpios = &gpios[pdata->num_row_gpios];  in matrix_keypad_parse_dt()
468 	return pdata;  in matrix_keypad_parse_dt()
482 	const struct matrix_keypad_platform_data *pdata;  in matrix_keypad_probe()  local
487 	pdata = dev_get_platdata(&pdev->dev);  in matrix_keypad_probe()
488 	if (!pdata) {  in matrix_keypad_probe()
489 		pdata = matrix_keypad_parse_dt(&pdev->dev);  in matrix_keypad_probe()
490 		if (IS_ERR(pdata))  in matrix_keypad_probe()
491 			return PTR_ERR(pdata);  in matrix_keypad_probe()
492 	} else if (!pdata->keymap_data) {  in matrix_keypad_probe()
505 	keypad->pdata = pdata;  in matrix_keypad_probe()
506 	keypad->row_shift = get_count_order(pdata->num_col_gpios);  in matrix_keypad_probe()
517 	err = matrix_keypad_build_keymap(pdata->keymap_data, NULL,  in matrix_keypad_probe()
518 					 pdata->num_row_gpios,  in matrix_keypad_probe()
519 					 pdata->num_col_gpios,  in matrix_keypad_probe()
526 	if (!pdata->no_autorepeat)  in matrix_keypad_probe()
539 	device_init_wakeup(&pdev->dev, pdata->wakeup);  in matrix_keypad_probe()