30 	const struct matrix_keypad_platform_data *pdata;  member
50 static void __activate_col(const struct matrix_keypad_platform_data *pdata,  in __activate_col()  argument
53 	bool level_on = !pdata->active_low;  in __activate_col()
56 		gpio_direction_output(pdata->col_gpios[col], level_on);  in __activate_col()
58 		gpio_set_value_cansleep(pdata->col_gpios[col], !level_on);  in __activate_col()
59 		if (!pdata->drive_inactive_cols)  in __activate_col()
60 			gpio_direction_input(pdata->col_gpios[col]);  in __activate_col()
64 static void activate_col(const struct matrix_keypad_platform_data *pdata,  in activate_col()  argument
67 	__activate_col(pdata, col, on);  in activate_col()
69 	if (on && pdata->col_scan_delay_us)  in activate_col()
70 		udelay(pdata->col_scan_delay_us);  in activate_col()
73 static void activate_all_cols(const struct matrix_keypad_platform_data *pdata,  in activate_all_cols()  argument
78 	for (col = 0; col < pdata->num_col_gpios; col++)  in activate_all_cols()
79 		__activate_col(pdata, col, on);  in activate_all_cols()
82 static bool row_asserted(const struct matrix_keypad_platform_data *pdata,  in row_asserted()  argument
85 	return gpio_get_value_cansleep(pdata->row_gpios[row]) ?  in row_asserted()
86 			!pdata->active_low : pdata->active_low;  in row_asserted()
91 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in enable_row_irqs()  local
94 	if (pdata->clustered_irq > 0)  in enable_row_irqs()
95 		enable_irq(pdata->clustered_irq);  in enable_row_irqs()
97 		for (i = 0; i < pdata->num_row_gpios; i++)  in enable_row_irqs()
98 			enable_irq(gpio_to_irq(pdata->row_gpios[i]));  in enable_row_irqs()
104 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in disable_row_irqs()  local
107 	if (pdata->clustered_irq > 0)  in disable_row_irqs()
108 		disable_irq_nosync(pdata->clustered_irq);  in disable_row_irqs()
110 		for (i = 0; i < pdata->num_row_gpios; i++)  in disable_row_irqs()
111 			disable_irq_nosync(gpio_to_irq(pdata->row_gpios[i]));  in disable_row_irqs()
124 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in matrix_keypad_scan()  local
129 	activate_all_cols(pdata, false);  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()
236 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in matrix_keypad_enable_wakeup()  local
240 	if (pdata->clustered_irq > 0) {  in matrix_keypad_enable_wakeup()
241 		if (enable_irq_wake(pdata->clustered_irq) == 0)  in matrix_keypad_enable_wakeup()
245 		for (i = 0; i < pdata->num_row_gpios; i++) {  in matrix_keypad_enable_wakeup()
247 				gpio = pdata->row_gpios[i];  in matrix_keypad_enable_wakeup()
258 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in matrix_keypad_disable_wakeup()  local
262 	if (pdata->clustered_irq > 0) {  in matrix_keypad_disable_wakeup()
264 			disable_irq_wake(pdata->clustered_irq);  in matrix_keypad_disable_wakeup()
268 		for (i = 0; i < pdata->num_row_gpios; i++) {  in matrix_keypad_disable_wakeup()
270 				gpio = pdata->row_gpios[i];  in matrix_keypad_disable_wakeup()
310 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in matrix_keypad_init_gpio()  local
314 	for (i = 0; i < pdata->num_col_gpios; i++) {  in matrix_keypad_init_gpio()
315 		err = gpio_request(pdata->col_gpios[i], "matrix_kbd_col");  in matrix_keypad_init_gpio()
319 				pdata->col_gpios[i], i);  in matrix_keypad_init_gpio()
323 		gpio_direction_output(pdata->col_gpios[i], !pdata->active_low);  in matrix_keypad_init_gpio()
326 	for (i = 0; i < pdata->num_row_gpios; i++) {  in matrix_keypad_init_gpio()
327 		err = gpio_request(pdata->row_gpios[i], "matrix_kbd_row");  in matrix_keypad_init_gpio()
331 				pdata->row_gpios[i], i);  in matrix_keypad_init_gpio()
335 		gpio_direction_input(pdata->row_gpios[i]);  in matrix_keypad_init_gpio()
338 	if (pdata->clustered_irq > 0) {  in matrix_keypad_init_gpio()
339 		err = request_any_context_irq(pdata->clustered_irq,  in matrix_keypad_init_gpio()
341 				pdata->clustered_irq_flags,  in matrix_keypad_init_gpio()
349 		for (i = 0; i < pdata->num_row_gpios; i++) {  in matrix_keypad_init_gpio()
351 					gpio_to_irq(pdata->row_gpios[i]),  in matrix_keypad_init_gpio()
359 					pdata->row_gpios[i]);  in matrix_keypad_init_gpio()
371 		free_irq(gpio_to_irq(pdata->row_gpios[i]), keypad);  in matrix_keypad_init_gpio()
372 	i = pdata->num_row_gpios;  in matrix_keypad_init_gpio()
375 		gpio_free(pdata->row_gpios[i]);  in matrix_keypad_init_gpio()
376 	i = pdata->num_col_gpios;  in matrix_keypad_init_gpio()
379 		gpio_free(pdata->col_gpios[i]);  in matrix_keypad_init_gpio()
386 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in matrix_keypad_free_gpio()  local
389 	if (pdata->clustered_irq > 0) {  in matrix_keypad_free_gpio()
390 		free_irq(pdata->clustered_irq, keypad);  in matrix_keypad_free_gpio()
392 		for (i = 0; i < pdata->num_row_gpios; i++)  in matrix_keypad_free_gpio()
393 			free_irq(gpio_to_irq(pdata->row_gpios[i]), keypad);  in matrix_keypad_free_gpio()
396 	for (i = 0; i < pdata->num_row_gpios; i++)  in matrix_keypad_free_gpio()
397 		gpio_free(pdata->row_gpios[i]);  in matrix_keypad_free_gpio()
399 	for (i = 0; i < pdata->num_col_gpios; i++)  in matrix_keypad_free_gpio()
400 		gpio_free(pdata->col_gpios[i]);  in matrix_keypad_free_gpio()
407 	struct matrix_keypad_platform_data *pdata;  in matrix_keypad_parse_dt()  local
417 	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);  in matrix_keypad_parse_dt()
418 	if (!pdata) {  in matrix_keypad_parse_dt()
423 	pdata->num_row_gpios = nrow = of_gpio_named_count(np, "row-gpios");  in matrix_keypad_parse_dt()
424 	pdata->num_col_gpios = ncol = of_gpio_named_count(np, "col-gpios");  in matrix_keypad_parse_dt()
431 		pdata->no_autorepeat = true;  in matrix_keypad_parse_dt()
433 	pdata->wakeup = of_property_read_bool(np, "wakeup-source") ||  in matrix_keypad_parse_dt()
437 		pdata->active_low = true;  in matrix_keypad_parse_dt()
439 	pdata->drive_inactive_cols =  in matrix_keypad_parse_dt()
442 	of_property_read_u32(np, "debounce-delay-ms", &pdata->debounce_ms);  in matrix_keypad_parse_dt()
444 						&pdata->col_scan_delay_us);  in matrix_keypad_parse_dt()
447 			     pdata->num_row_gpios + pdata->num_col_gpios,  in matrix_keypad_parse_dt()
455 	for (i = 0; i < pdata->num_row_gpios; i++)  in matrix_keypad_parse_dt()
458 	for (i = 0; i < pdata->num_col_gpios; i++)  in matrix_keypad_parse_dt()
459 		gpios[pdata->num_row_gpios + i] =  in matrix_keypad_parse_dt()
462 	pdata->row_gpios = gpios;  in matrix_keypad_parse_dt()
463 	pdata->col_gpios = &gpios[pdata->num_row_gpios];  in matrix_keypad_parse_dt()
465 	return pdata;  in matrix_keypad_parse_dt()
479 	const struct matrix_keypad_platform_data *pdata;  in matrix_keypad_probe()  local
484 	pdata = dev_get_platdata(&pdev->dev);  in matrix_keypad_probe()
485 	if (!pdata) {  in matrix_keypad_probe()
486 		pdata = matrix_keypad_parse_dt(&pdev->dev);  in matrix_keypad_probe()
487 		if (IS_ERR(pdata)) {  in matrix_keypad_probe()
489 			return PTR_ERR(pdata);  in matrix_keypad_probe()
491 	} else if (!pdata->keymap_data) {  in matrix_keypad_probe()
504 	keypad->pdata = pdata;  in matrix_keypad_probe()
505 	keypad->row_shift = get_count_order(pdata->num_col_gpios);  in matrix_keypad_probe()
516 	err = matrix_keypad_build_keymap(pdata->keymap_data, NULL,  in matrix_keypad_probe()
517 					 pdata->num_row_gpios,  in matrix_keypad_probe()
518 					 pdata->num_col_gpios,  in matrix_keypad_probe()
525 	if (!pdata->no_autorepeat)  in matrix_keypad_probe()
538 	device_init_wakeup(&pdev->dev, pdata->wakeup);  in matrix_keypad_probe()