30 	const struct matrix_keypad_platform_data *pdata;  member
49 static void __activate_col(const struct matrix_keypad_platform_data *pdata,  in __activate_col()  argument
52 	bool level_on = !pdata->active_low;  in __activate_col()
55 		gpio_direction_output(pdata->col_gpios[col], level_on);  in __activate_col()
57 		gpio_set_value_cansleep(pdata->col_gpios[col], !level_on);  in __activate_col()
58 		gpio_direction_input(pdata->col_gpios[col]);  in __activate_col()
62 static void activate_col(const struct matrix_keypad_platform_data *pdata,  in activate_col()  argument
65 	__activate_col(pdata, col, on);  in activate_col()
67 	if (on && pdata->col_scan_delay_us)  in activate_col()
68 		udelay(pdata->col_scan_delay_us);  in activate_col()
71 static void activate_all_cols(const struct matrix_keypad_platform_data *pdata,  in activate_all_cols()  argument
76 	for (col = 0; col < pdata->num_col_gpios; col++)  in activate_all_cols()
77 		__activate_col(pdata, col, on);  in activate_all_cols()
80 static bool row_asserted(const struct matrix_keypad_platform_data *pdata,  in row_asserted()  argument
83 	return gpio_get_value_cansleep(pdata->row_gpios[row]) ?  in row_asserted()
84 			!pdata->active_low : pdata->active_low;  in row_asserted()
89 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in enable_row_irqs()  local
92 	if (pdata->clustered_irq > 0)  in enable_row_irqs()
93 		enable_irq(pdata->clustered_irq);  in enable_row_irqs()
95 		for (i = 0; i < pdata->num_row_gpios; i++)  in enable_row_irqs()
96 			enable_irq(gpio_to_irq(pdata->row_gpios[i]));  in enable_row_irqs()
102 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in disable_row_irqs()  local
105 	if (pdata->clustered_irq > 0)  in disable_row_irqs()
106 		disable_irq_nosync(pdata->clustered_irq);  in disable_row_irqs()
108 		for (i = 0; i < pdata->num_row_gpios; i++)  in disable_row_irqs()
109 			disable_irq_nosync(gpio_to_irq(pdata->row_gpios[i]));  in disable_row_irqs()
122 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in matrix_keypad_scan()  local
127 	activate_all_cols(pdata, false);  in matrix_keypad_scan()
132 	for (col = 0; col < pdata->num_col_gpios; col++) {  in matrix_keypad_scan()
134 		activate_col(pdata, col, true);  in matrix_keypad_scan()
136 		for (row = 0; row < pdata->num_row_gpios; row++)  in matrix_keypad_scan()
138 				row_asserted(pdata, row) ? (1 << row) : 0;  in matrix_keypad_scan()
140 		activate_col(pdata, col, false);  in matrix_keypad_scan()
143 	for (col = 0; col < pdata->num_col_gpios; col++) {  in matrix_keypad_scan()
150 		for (row = 0; row < pdata->num_row_gpios; row++) {  in matrix_keypad_scan()
165 	activate_all_cols(pdata, true);  in matrix_keypad_scan()
192 		msecs_to_jiffies(keypad->pdata->debounce_ms));  in matrix_keypad_interrupt()
232 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in matrix_keypad_enable_wakeup()  local
236 	if (pdata->clustered_irq > 0) {  in matrix_keypad_enable_wakeup()
237 		if (enable_irq_wake(pdata->clustered_irq) == 0)  in matrix_keypad_enable_wakeup()
241 		for (i = 0; i < pdata->num_row_gpios; i++) {  in matrix_keypad_enable_wakeup()
243 				gpio = pdata->row_gpios[i];  in matrix_keypad_enable_wakeup()
254 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in matrix_keypad_disable_wakeup()  local
258 	if (pdata->clustered_irq > 0) {  in matrix_keypad_disable_wakeup()
260 			disable_irq_wake(pdata->clustered_irq);  in matrix_keypad_disable_wakeup()
264 		for (i = 0; i < pdata->num_row_gpios; i++) {  in matrix_keypad_disable_wakeup()
266 				gpio = pdata->row_gpios[i];  in matrix_keypad_disable_wakeup()
306 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in matrix_keypad_init_gpio()  local
310 	for (i = 0; i < pdata->num_col_gpios; i++) {  in matrix_keypad_init_gpio()
311 		err = gpio_request(pdata->col_gpios[i], "matrix_kbd_col");  in matrix_keypad_init_gpio()
315 				pdata->col_gpios[i], i);  in matrix_keypad_init_gpio()
319 		gpio_direction_output(pdata->col_gpios[i], !pdata->active_low);  in matrix_keypad_init_gpio()
322 	for (i = 0; i < pdata->num_row_gpios; i++) {  in matrix_keypad_init_gpio()
323 		err = gpio_request(pdata->row_gpios[i], "matrix_kbd_row");  in matrix_keypad_init_gpio()
327 				pdata->row_gpios[i], i);  in matrix_keypad_init_gpio()
331 		gpio_direction_input(pdata->row_gpios[i]);  in matrix_keypad_init_gpio()
334 	if (pdata->clustered_irq > 0) {  in matrix_keypad_init_gpio()
335 		err = request_any_context_irq(pdata->clustered_irq,  in matrix_keypad_init_gpio()
337 				pdata->clustered_irq_flags,  in matrix_keypad_init_gpio()
345 		for (i = 0; i < pdata->num_row_gpios; i++) {  in matrix_keypad_init_gpio()
347 					gpio_to_irq(pdata->row_gpios[i]),  in matrix_keypad_init_gpio()
355 					pdata->row_gpios[i]);  in matrix_keypad_init_gpio()
367 		free_irq(gpio_to_irq(pdata->row_gpios[i]), keypad);  in matrix_keypad_init_gpio()
368 	i = pdata->num_row_gpios;  in matrix_keypad_init_gpio()
371 		gpio_free(pdata->row_gpios[i]);  in matrix_keypad_init_gpio()
372 	i = pdata->num_col_gpios;  in matrix_keypad_init_gpio()
375 		gpio_free(pdata->col_gpios[i]);  in matrix_keypad_init_gpio()
382 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in matrix_keypad_free_gpio()  local
385 	if (pdata->clustered_irq > 0) {  in matrix_keypad_free_gpio()
386 		free_irq(pdata->clustered_irq, keypad);  in matrix_keypad_free_gpio()
388 		for (i = 0; i < pdata->num_row_gpios; i++)  in matrix_keypad_free_gpio()
389 			free_irq(gpio_to_irq(pdata->row_gpios[i]), keypad);  in matrix_keypad_free_gpio()
392 	for (i = 0; i < pdata->num_row_gpios; i++)  in matrix_keypad_free_gpio()
393 		gpio_free(pdata->row_gpios[i]);  in matrix_keypad_free_gpio()
395 	for (i = 0; i < pdata->num_col_gpios; i++)  in matrix_keypad_free_gpio()
396 		gpio_free(pdata->col_gpios[i]);  in matrix_keypad_free_gpio()
403 	struct matrix_keypad_platform_data *pdata;  in matrix_keypad_parse_dt()  local
413 	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);  in matrix_keypad_parse_dt()
414 	if (!pdata) {  in matrix_keypad_parse_dt()
419 	pdata->num_row_gpios = nrow = of_gpio_named_count(np, "row-gpios");  in matrix_keypad_parse_dt()
420 	pdata->num_col_gpios = ncol = of_gpio_named_count(np, "col-gpios");  in matrix_keypad_parse_dt()
427 		pdata->no_autorepeat = true;  in matrix_keypad_parse_dt()
429 		pdata->wakeup = true;  in matrix_keypad_parse_dt()
431 		pdata->active_low = true;  in matrix_keypad_parse_dt()
433 	of_property_read_u32(np, "debounce-delay-ms", &pdata->debounce_ms);  in matrix_keypad_parse_dt()
435 						&pdata->col_scan_delay_us);  in matrix_keypad_parse_dt()
439 				(pdata->num_row_gpios + pdata->num_col_gpios),  in matrix_keypad_parse_dt()
446 	for (i = 0; i < pdata->num_row_gpios; i++)  in matrix_keypad_parse_dt()
449 	for (i = 0; i < pdata->num_col_gpios; i++)  in matrix_keypad_parse_dt()
450 		gpios[pdata->num_row_gpios + i] =  in matrix_keypad_parse_dt()
453 	pdata->row_gpios = gpios;  in matrix_keypad_parse_dt()
454 	pdata->col_gpios = &gpios[pdata->num_row_gpios];  in matrix_keypad_parse_dt()
456 	return pdata;  in matrix_keypad_parse_dt()
470 	const struct matrix_keypad_platform_data *pdata;  in matrix_keypad_probe()  local
475 	pdata = dev_get_platdata(&pdev->dev);  in matrix_keypad_probe()
476 	if (!pdata) {  in matrix_keypad_probe()
477 		pdata = matrix_keypad_parse_dt(&pdev->dev);  in matrix_keypad_probe()
478 		if (IS_ERR(pdata)) {  in matrix_keypad_probe()
480 			return PTR_ERR(pdata);  in matrix_keypad_probe()
482 	} else if (!pdata->keymap_data) {  in matrix_keypad_probe()
495 	keypad->pdata = pdata;  in matrix_keypad_probe()
496 	keypad->row_shift = get_count_order(pdata->num_col_gpios);  in matrix_keypad_probe()
507 	err = matrix_keypad_build_keymap(pdata->keymap_data, NULL,  in matrix_keypad_probe()
508 					 pdata->num_row_gpios,  in matrix_keypad_probe()
509 					 pdata->num_col_gpios,  in matrix_keypad_probe()
516 	if (!pdata->no_autorepeat)  in matrix_keypad_probe()
529 	device_init_wakeup(&pdev->dev, pdata->wakeup);  in matrix_keypad_probe()