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()
131 	for (col = 0; col < pdata->num_col_gpios; col++) {  in matrix_keypad_scan()
133 		activate_col(pdata, col, true);  in matrix_keypad_scan()
135 		for (row = 0; row < pdata->num_row_gpios; row++)  in matrix_keypad_scan()
137 				row_asserted(pdata, row) ? (1 << row) : 0;  in matrix_keypad_scan()
139 		activate_col(pdata, col, false);  in matrix_keypad_scan()
142 	for (col = 0; col < pdata->num_col_gpios; col++) {  in matrix_keypad_scan()
149 		for (row = 0; row < pdata->num_row_gpios; row++) {  in matrix_keypad_scan()
164 	activate_all_cols(pdata, true);  in matrix_keypad_scan()
191 		msecs_to_jiffies(keypad->pdata->debounce_ms));  in matrix_keypad_interrupt()
233 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in matrix_keypad_enable_wakeup()  local
237 	if (pdata->clustered_irq > 0) {  in matrix_keypad_enable_wakeup()
238 		if (enable_irq_wake(pdata->clustered_irq) == 0)  in matrix_keypad_enable_wakeup()
242 		for (i = 0; i < pdata->num_row_gpios; i++) {  in matrix_keypad_enable_wakeup()
244 				gpio = pdata->row_gpios[i];  in matrix_keypad_enable_wakeup()
255 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in matrix_keypad_disable_wakeup()  local
259 	if (pdata->clustered_irq > 0) {  in matrix_keypad_disable_wakeup()
261 			disable_irq_wake(pdata->clustered_irq);  in matrix_keypad_disable_wakeup()
265 		for (i = 0; i < pdata->num_row_gpios; i++) {  in matrix_keypad_disable_wakeup()
267 				gpio = pdata->row_gpios[i];  in matrix_keypad_disable_wakeup()
307 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in matrix_keypad_init_gpio()  local
311 	for (i = 0; i < pdata->num_col_gpios; i++) {  in matrix_keypad_init_gpio()
312 		err = gpio_request(pdata->col_gpios[i], "matrix_kbd_col");  in matrix_keypad_init_gpio()
316 				pdata->col_gpios[i], i);  in matrix_keypad_init_gpio()
320 		gpio_direction_output(pdata->col_gpios[i], !pdata->active_low);  in matrix_keypad_init_gpio()
323 	for (i = 0; i < pdata->num_row_gpios; i++) {  in matrix_keypad_init_gpio()
324 		err = gpio_request(pdata->row_gpios[i], "matrix_kbd_row");  in matrix_keypad_init_gpio()
328 				pdata->row_gpios[i], i);  in matrix_keypad_init_gpio()
332 		gpio_direction_input(pdata->row_gpios[i]);  in matrix_keypad_init_gpio()
335 	if (pdata->clustered_irq > 0) {  in matrix_keypad_init_gpio()
336 		err = request_any_context_irq(pdata->clustered_irq,  in matrix_keypad_init_gpio()
338 				pdata->clustered_irq_flags,  in matrix_keypad_init_gpio()
346 		for (i = 0; i < pdata->num_row_gpios; i++) {  in matrix_keypad_init_gpio()
348 					gpio_to_irq(pdata->row_gpios[i]),  in matrix_keypad_init_gpio()
356 					pdata->row_gpios[i]);  in matrix_keypad_init_gpio()
368 		free_irq(gpio_to_irq(pdata->row_gpios[i]), keypad);  in matrix_keypad_init_gpio()
369 	i = pdata->num_row_gpios;  in matrix_keypad_init_gpio()
372 		gpio_free(pdata->row_gpios[i]);  in matrix_keypad_init_gpio()
373 	i = pdata->num_col_gpios;  in matrix_keypad_init_gpio()
376 		gpio_free(pdata->col_gpios[i]);  in matrix_keypad_init_gpio()
383 	const struct matrix_keypad_platform_data *pdata = keypad->pdata;  in matrix_keypad_free_gpio()  local
386 	if (pdata->clustered_irq > 0) {  in matrix_keypad_free_gpio()
387 		free_irq(pdata->clustered_irq, keypad);  in matrix_keypad_free_gpio()
389 		for (i = 0; i < pdata->num_row_gpios; i++)  in matrix_keypad_free_gpio()
390 			free_irq(gpio_to_irq(pdata->row_gpios[i]), keypad);  in matrix_keypad_free_gpio()
393 	for (i = 0; i < pdata->num_row_gpios; i++)  in matrix_keypad_free_gpio()
394 		gpio_free(pdata->row_gpios[i]);  in matrix_keypad_free_gpio()
396 	for (i = 0; i < pdata->num_col_gpios; i++)  in matrix_keypad_free_gpio()
397 		gpio_free(pdata->col_gpios[i]);  in matrix_keypad_free_gpio()
404 	struct matrix_keypad_platform_data *pdata;  in matrix_keypad_parse_dt()  local
414 	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);  in matrix_keypad_parse_dt()
415 	if (!pdata) {  in matrix_keypad_parse_dt()
420 	pdata->num_row_gpios = nrow = gpiod_count(dev, "row");  in matrix_keypad_parse_dt()
421 	pdata->num_col_gpios = ncol = gpiod_count(dev, "col");  in matrix_keypad_parse_dt()
428 		pdata->no_autorepeat = true;  in matrix_keypad_parse_dt()
430 	pdata->wakeup = of_property_read_bool(np, "wakeup-source") ||  in matrix_keypad_parse_dt()
434 		pdata->active_low = true;  in matrix_keypad_parse_dt()
436 	pdata->drive_inactive_cols =  in matrix_keypad_parse_dt()
439 	of_property_read_u32(np, "debounce-delay-ms", &pdata->debounce_ms);  in matrix_keypad_parse_dt()
441 						&pdata->col_scan_delay_us);  in matrix_keypad_parse_dt()
444 			     pdata->num_row_gpios + pdata->num_col_gpios,  in matrix_keypad_parse_dt()
466 	pdata->row_gpios = gpios;  in matrix_keypad_parse_dt()
467 	pdata->col_gpios = &gpios[pdata->num_row_gpios];  in matrix_keypad_parse_dt()
469 	return pdata;  in matrix_keypad_parse_dt()
483 	const struct matrix_keypad_platform_data *pdata;  in matrix_keypad_probe()  local
488 	pdata = dev_get_platdata(&pdev->dev);  in matrix_keypad_probe()
489 	if (!pdata) {  in matrix_keypad_probe()
490 		pdata = matrix_keypad_parse_dt(&pdev->dev);  in matrix_keypad_probe()
491 		if (IS_ERR(pdata))  in matrix_keypad_probe()
492 			return PTR_ERR(pdata);  in matrix_keypad_probe()
493 	} else if (!pdata->keymap_data) {  in matrix_keypad_probe()
506 	keypad->pdata = pdata;  in matrix_keypad_probe()
507 	keypad->row_shift = get_count_order(pdata->num_col_gpios);  in matrix_keypad_probe()
518 	err = matrix_keypad_build_keymap(pdata->keymap_data, NULL,  in matrix_keypad_probe()
519 					 pdata->num_row_gpios,  in matrix_keypad_probe()
520 					 pdata->num_col_gpios,  in matrix_keypad_probe()
527 	if (!pdata->no_autorepeat)  in matrix_keypad_probe()
540 	device_init_wakeup(&pdev->dev, pdata->wakeup);  in matrix_keypad_probe()