77 static int ljca_gpio_config(struct ljca_gpio_dev *ljca_gpio, u8 gpio_id,  in ljca_gpio_config()  argument
81 				(struct ljca_gpio_packet *)ljca_gpio->obuf;  in ljca_gpio_config()
84 	mutex_lock(&ljca_gpio->trans_lock);  in ljca_gpio_config()
86 	packet->item[0].value = config | ljca_gpio->connect_mode[gpio_id];  in ljca_gpio_config()
89 	ret = ljca_transfer(ljca_gpio->ljca, LJCA_GPIO_CONFIG, (u8 *)packet,  in ljca_gpio_config()
91 	mutex_unlock(&ljca_gpio->trans_lock);  in ljca_gpio_config()
96 static int ljca_gpio_read(struct ljca_gpio_dev *ljca_gpio, u8 gpio_id)  in ljca_gpio_read()  argument
99 				(struct ljca_gpio_packet *)ljca_gpio->ibuf;  in ljca_gpio_read()
101 				(struct ljca_gpio_packet *)ljca_gpio->obuf;  in ljca_gpio_read()
104 	mutex_lock(&ljca_gpio->trans_lock);  in ljca_gpio_read()
107 	ret = ljca_transfer(ljca_gpio->ljca, LJCA_GPIO_READ, (u8 *)packet,  in ljca_gpio_read()
109 			    ljca_gpio->ibuf, LJCA_GPIO_BUF_SIZE);  in ljca_gpio_read()
112 		dev_err(&ljca_gpio->ljca->auxdev.dev,  in ljca_gpio_read()
117 	mutex_unlock(&ljca_gpio->trans_lock);  in ljca_gpio_read()
122 static int ljca_gpio_write(struct ljca_gpio_dev *ljca_gpio, u8 gpio_id, int value)  in ljca_gpio_write()  argument
125 			(struct ljca_gpio_packet *)ljca_gpio->obuf;  in ljca_gpio_write()
128 	mutex_lock(&ljca_gpio->trans_lock);  in ljca_gpio_write()
133 	ret = ljca_transfer(ljca_gpio->ljca, LJCA_GPIO_WRITE, (u8 *)packet,  in ljca_gpio_write()
135 	mutex_unlock(&ljca_gpio->trans_lock);  in ljca_gpio_write()
142 	struct ljca_gpio_dev *ljca_gpio = gpiochip_get_data(chip);  in ljca_gpio_get_value()  local
144 	return ljca_gpio_read(ljca_gpio, offset);  in ljca_gpio_get_value()
150 	struct ljca_gpio_dev *ljca_gpio = gpiochip_get_data(chip);  in ljca_gpio_set_value()  local
153 	ret = ljca_gpio_write(ljca_gpio, offset, val);  in ljca_gpio_set_value()
162 	struct ljca_gpio_dev *ljca_gpio = gpiochip_get_data(chip);  in ljca_gpio_direction_input()  local
166 	ret = ljca_gpio_config(ljca_gpio, offset, config);  in ljca_gpio_direction_input()
170 	clear_bit(offset, ljca_gpio->output_enabled);  in ljca_gpio_direction_input()
178 	struct ljca_gpio_dev *ljca_gpio = gpiochip_get_data(chip);  in ljca_gpio_direction_output()  local
182 	ret = ljca_gpio_config(ljca_gpio, offset, config);  in ljca_gpio_direction_output()
187 	set_bit(offset, ljca_gpio->output_enabled);  in ljca_gpio_direction_output()
194 	struct ljca_gpio_dev *ljca_gpio = gpiochip_get_data(chip);  in ljca_gpio_get_direction()  local
196 	if (test_bit(offset, ljca_gpio->output_enabled))  in ljca_gpio_get_direction()
205 	struct ljca_gpio_dev *ljca_gpio = gpiochip_get_data(chip);  in ljca_gpio_set_config()  local
207 	ljca_gpio->connect_mode[offset] = 0;  in ljca_gpio_set_config()
210 		ljca_gpio->connect_mode[offset] |= LJCA_GPIO_CONF_PULLUP;  in ljca_gpio_set_config()
213 		ljca_gpio->connect_mode[offset] |= LJCA_GPIO_CONF_PULLDOWN;  in ljca_gpio_set_config()
229 	struct ljca_gpio_dev *ljca_gpio = gpiochip_get_data(chip);  in ljca_gpio_init_valid_mask()  local
231 	WARN_ON_ONCE(ngpios != ljca_gpio->gpio_info->num);  in ljca_gpio_init_valid_mask()
232 	bitmap_copy(valid_mask, ljca_gpio->gpio_info->valid_pin_map, ngpios);  in ljca_gpio_init_valid_mask()
244 static int ljca_enable_irq(struct ljca_gpio_dev *ljca_gpio, int gpio_id,  in ljca_enable_irq()  argument
248 			(struct ljca_gpio_packet *)ljca_gpio->obuf;  in ljca_enable_irq()
251 	mutex_lock(&ljca_gpio->trans_lock);  in ljca_enable_irq()
256 	ret = ljca_transfer(ljca_gpio->ljca,  in ljca_enable_irq()
260 	mutex_unlock(&ljca_gpio->trans_lock);  in ljca_enable_irq()
267 	struct ljca_gpio_dev *ljca_gpio =  in ljca_gpio_async()  local
271 	for_each_set_bit(gpio_id, ljca_gpio->reenable_irqs, ljca_gpio->gc.ngpio) {  in ljca_gpio_async()
272 		clear_bit(gpio_id, ljca_gpio->reenable_irqs);  in ljca_gpio_async()
273 		unmasked = test_bit(gpio_id, ljca_gpio->unmasked_irqs);  in ljca_gpio_async()
275 			ljca_enable_irq(ljca_gpio, gpio_id, true);  in ljca_gpio_async()
283 	struct ljca_gpio_dev *ljca_gpio = context;  in ljca_gpio_event_cb()  local
290 		irq = irq_find_mapping(ljca_gpio->gc.irq.domain,  in ljca_gpio_event_cb()
293 			dev_err(ljca_gpio->gc.parent,  in ljca_gpio_event_cb()
299 		generic_handle_domain_irq(ljca_gpio->gc.irq.domain, irq);  in ljca_gpio_event_cb()
300 		set_bit(packet->item[i].index, ljca_gpio->reenable_irqs);  in ljca_gpio_event_cb()
303 	schedule_work(&ljca_gpio->work);  in ljca_gpio_event_cb()
309 	struct ljca_gpio_dev *ljca_gpio = gpiochip_get_data(gc);  in ljca_irq_unmask()  local
313 	set_bit(gpio_id, ljca_gpio->unmasked_irqs);  in ljca_irq_unmask()
319 	struct ljca_gpio_dev *ljca_gpio = gpiochip_get_data(gc);  in ljca_irq_mask()  local
322 	clear_bit(gpio_id, ljca_gpio->unmasked_irqs);  in ljca_irq_mask()
329 	struct ljca_gpio_dev *ljca_gpio = gpiochip_get_data(gc);  in ljca_irq_set_type()  local
332 	ljca_gpio->connect_mode[gpio_id] = LJCA_GPIO_CONF_INTERRUPT;  in ljca_irq_set_type()
335 		ljca_gpio->connect_mode[gpio_id] |=  in ljca_irq_set_type()
339 		ljca_gpio->connect_mode[gpio_id] |=  in ljca_irq_set_type()
345 		ljca_gpio->connect_mode[gpio_id] |=  in ljca_irq_set_type()
349 		ljca_gpio->connect_mode[gpio_id] |=  in ljca_irq_set_type()
362 	struct ljca_gpio_dev *ljca_gpio = gpiochip_get_data(gc);  in ljca_irq_bus_lock()  local
364 	mutex_lock(&ljca_gpio->irq_lock);  in ljca_irq_bus_lock()
370 	struct ljca_gpio_dev *ljca_gpio = gpiochip_get_data(gc);  in ljca_irq_bus_unlock()  local
374 	enabled = test_bit(gpio_id, ljca_gpio->enabled_irqs);  in ljca_irq_bus_unlock()
375 	unmasked = test_bit(gpio_id, ljca_gpio->unmasked_irqs);  in ljca_irq_bus_unlock()
379 			ljca_gpio_config(ljca_gpio, gpio_id, 0);  in ljca_irq_bus_unlock()
380 			ljca_enable_irq(ljca_gpio, gpio_id, true);  in ljca_irq_bus_unlock()
381 			set_bit(gpio_id, ljca_gpio->enabled_irqs);  in ljca_irq_bus_unlock()
383 			ljca_enable_irq(ljca_gpio, gpio_id, false);  in ljca_irq_bus_unlock()
384 			clear_bit(gpio_id, ljca_gpio->enabled_irqs);  in ljca_irq_bus_unlock()
388 	mutex_unlock(&ljca_gpio->irq_lock);  in ljca_irq_bus_unlock()
406 	struct ljca_gpio_dev *ljca_gpio;  in ljca_gpio_probe()  local
410 	ljca_gpio = devm_kzalloc(&auxdev->dev, sizeof(*ljca_gpio), GFP_KERNEL);  in ljca_gpio_probe()
411 	if (!ljca_gpio)  in ljca_gpio_probe()
414 	ljca_gpio->ljca = ljca;  in ljca_gpio_probe()
415 	ljca_gpio->gpio_info = dev_get_platdata(&auxdev->dev);  in ljca_gpio_probe()
416 	ljca_gpio->connect_mode = devm_kcalloc(&auxdev->dev,  in ljca_gpio_probe()
417 					       ljca_gpio->gpio_info->num,  in ljca_gpio_probe()
418 					       sizeof(*ljca_gpio->connect_mode),  in ljca_gpio_probe()
420 	if (!ljca_gpio->connect_mode)  in ljca_gpio_probe()
423 	mutex_init(&ljca_gpio->irq_lock);  in ljca_gpio_probe()
424 	mutex_init(&ljca_gpio->trans_lock);  in ljca_gpio_probe()
425 	ljca_gpio->gc.direction_input = ljca_gpio_direction_input;  in ljca_gpio_probe()
426 	ljca_gpio->gc.direction_output = ljca_gpio_direction_output;  in ljca_gpio_probe()
427 	ljca_gpio->gc.get_direction = ljca_gpio_get_direction;  in ljca_gpio_probe()
428 	ljca_gpio->gc.get = ljca_gpio_get_value;  in ljca_gpio_probe()
429 	ljca_gpio->gc.set = ljca_gpio_set_value;  in ljca_gpio_probe()
430 	ljca_gpio->gc.set_config = ljca_gpio_set_config;  in ljca_gpio_probe()
431 	ljca_gpio->gc.init_valid_mask = ljca_gpio_init_valid_mask;  in ljca_gpio_probe()
432 	ljca_gpio->gc.can_sleep = true;  in ljca_gpio_probe()
433 	ljca_gpio->gc.parent = &auxdev->dev;  in ljca_gpio_probe()
435 	ljca_gpio->gc.base = -1;  in ljca_gpio_probe()
436 	ljca_gpio->gc.ngpio = ljca_gpio->gpio_info->num;  in ljca_gpio_probe()
437 	ljca_gpio->gc.label = ACPI_COMPANION(&auxdev->dev) ?  in ljca_gpio_probe()
440 	ljca_gpio->gc.owner = THIS_MODULE;  in ljca_gpio_probe()
442 	auxiliary_set_drvdata(auxdev, ljca_gpio);  in ljca_gpio_probe()
443 	ljca_register_event_cb(ljca, ljca_gpio_event_cb, ljca_gpio);  in ljca_gpio_probe()
445 	girq = &ljca_gpio->gc.irq;  in ljca_gpio_probe()
454 	INIT_WORK(&ljca_gpio->work, ljca_gpio_async);  in ljca_gpio_probe()
455 	ret = gpiochip_add_data(&ljca_gpio->gc, ljca_gpio);  in ljca_gpio_probe()
458 		mutex_destroy(&ljca_gpio->irq_lock);  in ljca_gpio_probe()
459 		mutex_destroy(&ljca_gpio->trans_lock);  in ljca_gpio_probe()
467 	struct ljca_gpio_dev *ljca_gpio = auxiliary_get_drvdata(auxdev);  in ljca_gpio_remove()  local
469 	gpiochip_remove(&ljca_gpio->gc);  in ljca_gpio_remove()
470 	ljca_unregister_event_cb(ljca_gpio->ljca);  in ljca_gpio_remove()
471 	cancel_work_sync(&ljca_gpio->work);  in ljca_gpio_remove()
472 	mutex_destroy(&ljca_gpio->irq_lock);  in ljca_gpio_remove()
473 	mutex_destroy(&ljca_gpio->trans_lock);  in ljca_gpio_remove()