92 static int dln2_gpio_pin_cmd(struct dln2_gpio *dln2, int cmd, unsigned pin)  in dln2_gpio_pin_cmd()  argument
98 	return dln2_transfer_tx(dln2->pdev, cmd, &req, sizeof(req));  in dln2_gpio_pin_cmd()
101 static int dln2_gpio_pin_val(struct dln2_gpio *dln2, int cmd, unsigned int pin)  in dln2_gpio_pin_val()  argument
110 	ret = dln2_transfer(dln2->pdev, cmd, &req, sizeof(req), &rsp, &len);  in dln2_gpio_pin_val()
119 static int dln2_gpio_pin_get_in_val(struct dln2_gpio *dln2, unsigned int pin)  in dln2_gpio_pin_get_in_val()  argument
123 	ret = dln2_gpio_pin_val(dln2, DLN2_GPIO_PIN_GET_VAL, pin);  in dln2_gpio_pin_get_in_val()
129 static int dln2_gpio_pin_get_out_val(struct dln2_gpio *dln2, unsigned int pin)  in dln2_gpio_pin_get_out_val()  argument
133 	ret = dln2_gpio_pin_val(dln2, DLN2_GPIO_PIN_GET_OUT_VAL, pin);  in dln2_gpio_pin_get_out_val()
139 static int dln2_gpio_pin_set_out_val(struct dln2_gpio *dln2,  in dln2_gpio_pin_set_out_val()  argument
147 	return dln2_transfer_tx(dln2->pdev, DLN2_GPIO_PIN_SET_OUT_VAL, &req,  in dln2_gpio_pin_set_out_val()
156 	struct dln2_gpio *dln2 = container_of(chip, struct dln2_gpio, gpio);  in dln2_gpio_request()  local
164 	ret = dln2_gpio_pin_cmd(dln2, DLN2_GPIO_PIN_ENABLE, offset);  in dln2_gpio_request()
169 	ret = dln2_transfer(dln2->pdev, DLN2_GPIO_PIN_GET_DIRECTION,  in dln2_gpio_request()
180 		clear_bit(offset, dln2->output_enabled);  in dln2_gpio_request()
183 		set_bit(offset, dln2->output_enabled);  in dln2_gpio_request()
191 	dln2_gpio_pin_cmd(dln2, DLN2_GPIO_PIN_DISABLE, offset);  in dln2_gpio_request()
197 	struct dln2_gpio *dln2 = container_of(chip, struct dln2_gpio, gpio);  in dln2_gpio_free()  local
199 	dln2_gpio_pin_cmd(dln2, DLN2_GPIO_PIN_DISABLE, offset);  in dln2_gpio_free()
204 	struct dln2_gpio *dln2 = container_of(chip, struct dln2_gpio, gpio);  in dln2_gpio_get_direction()  local
206 	if (test_bit(offset, dln2->output_enabled))  in dln2_gpio_get_direction()
214 	struct dln2_gpio *dln2 = container_of(chip, struct dln2_gpio, gpio);  in dln2_gpio_get()  local
222 		return dln2_gpio_pin_get_in_val(dln2, offset);  in dln2_gpio_get()
224 	return dln2_gpio_pin_get_out_val(dln2, offset);  in dln2_gpio_get()
229 	struct dln2_gpio *dln2 = container_of(chip, struct dln2_gpio, gpio);  in dln2_gpio_set()  local
231 	dln2_gpio_pin_set_out_val(dln2, offset, value);  in dln2_gpio_set()
237 	struct dln2_gpio *dln2 = container_of(chip, struct dln2_gpio, gpio);  in dln2_gpio_set_direction()  local
244 	ret = dln2_transfer_tx(dln2->pdev, DLN2_GPIO_PIN_SET_DIRECTION,  in dln2_gpio_set_direction()
250 		set_bit(offset, dln2->output_enabled);  in dln2_gpio_set_direction()
252 		clear_bit(offset, dln2->output_enabled);  in dln2_gpio_set_direction()
265 	struct dln2_gpio *dln2 = container_of(chip, struct dln2_gpio, gpio);  in dln2_gpio_direction_output()  local
268 	ret = dln2_gpio_pin_set_out_val(dln2, offset, value);  in dln2_gpio_direction_output()
278 	struct dln2_gpio *dln2 = container_of(chip, struct dln2_gpio, gpio);  in dln2_gpio_set_debounce()  local
281 	return dln2_transfer_tx(dln2->pdev, DLN2_GPIO_SET_DEBOUNCE,  in dln2_gpio_set_debounce()
285 static int dln2_gpio_set_event_cfg(struct dln2_gpio *dln2, unsigned pin,  in dln2_gpio_set_event_cfg()  argument
298 	return dln2_transfer_tx(dln2->pdev, DLN2_GPIO_PIN_SET_EVENT_CFG,  in dln2_gpio_set_event_cfg()
305 	struct dln2_gpio *dln2 = container_of(gc, struct dln2_gpio, gpio);  in dln2_irq_unmask()  local
308 	set_bit(pin, dln2->unmasked_irqs);  in dln2_irq_unmask()
314 	struct dln2_gpio *dln2 = container_of(gc, struct dln2_gpio, gpio);  in dln2_irq_mask()  local
317 	clear_bit(pin, dln2->unmasked_irqs);  in dln2_irq_mask()
323 	struct dln2_gpio *dln2 = container_of(gc, struct dln2_gpio, gpio);  in dln2_irq_set_type()  local
328 		dln2->irq_type[pin] = DLN2_GPIO_EVENT_LVL_HIGH;  in dln2_irq_set_type()
331 		dln2->irq_type[pin] = DLN2_GPIO_EVENT_LVL_LOW;  in dln2_irq_set_type()
334 		dln2->irq_type[pin] = DLN2_GPIO_EVENT_CHANGE;  in dln2_irq_set_type()
337 		dln2->irq_type[pin] = DLN2_GPIO_EVENT_CHANGE_RISING;  in dln2_irq_set_type()
340 		dln2->irq_type[pin] = DLN2_GPIO_EVENT_CHANGE_FALLING;  in dln2_irq_set_type()
352 	struct dln2_gpio *dln2 = container_of(gc, struct dln2_gpio, gpio);  in dln2_irq_bus_lock()  local
354 	mutex_lock(&dln2->irq_lock);  in dln2_irq_bus_lock()
360 	struct dln2_gpio *dln2 = container_of(gc, struct dln2_gpio, gpio);  in dln2_irq_bus_unlock()  local
366 	enabled = test_bit(pin, dln2->enabled_irqs);  in dln2_irq_bus_unlock()
367 	unmasked = test_bit(pin, dln2->unmasked_irqs);  in dln2_irq_bus_unlock()
371 			type = dln2->irq_type[pin] & DLN2_GPIO_EVENT_MASK;  in dln2_irq_bus_unlock()
372 			set_bit(pin, dln2->enabled_irqs);  in dln2_irq_bus_unlock()
375 			clear_bit(pin, dln2->enabled_irqs);  in dln2_irq_bus_unlock()
378 		ret = dln2_gpio_set_event_cfg(dln2, pin, type, 0);  in dln2_irq_bus_unlock()
380 			dev_err(dln2->gpio.dev, "failed to set event\n");  in dln2_irq_bus_unlock()
383 	mutex_unlock(&dln2->irq_lock);  in dln2_irq_bus_unlock()
406 	struct dln2_gpio *dln2 = platform_get_drvdata(pdev);  in dln2_gpio_event()  local
409 		dev_err(dln2->gpio.dev, "short event message\n");  in dln2_gpio_event()
414 	if (pin >= dln2->gpio.ngpio) {  in dln2_gpio_event()
415 		dev_err(dln2->gpio.dev, "out of bounds pin %d\n", pin);  in dln2_gpio_event()
419 	irq = irq_find_mapping(dln2->gpio.irqdomain, pin);  in dln2_gpio_event()
421 		dev_err(dln2->gpio.dev, "pin %d not mapped to IRQ\n", pin);  in dln2_gpio_event()
425 	switch (dln2->irq_type[pin]) {  in dln2_gpio_event()
441 	struct dln2_gpio *dln2;  in dln2_gpio_probe()  local
456 	dln2 = devm_kzalloc(&pdev->dev, sizeof(*dln2), GFP_KERNEL);  in dln2_gpio_probe()
457 	if (!dln2)  in dln2_gpio_probe()
460 	mutex_init(&dln2->irq_lock);  in dln2_gpio_probe()
462 	dln2->pdev = pdev;  in dln2_gpio_probe()
464 	dln2->gpio.label = "dln2";  in dln2_gpio_probe()
465 	dln2->gpio.dev = dev;  in dln2_gpio_probe()
466 	dln2->gpio.owner = THIS_MODULE;  in dln2_gpio_probe()
467 	dln2->gpio.base = -1;  in dln2_gpio_probe()
468 	dln2->gpio.ngpio = pins;  in dln2_gpio_probe()
469 	dln2->gpio.exported = true;  in dln2_gpio_probe()
470 	dln2->gpio.can_sleep = true;  in dln2_gpio_probe()
471 	dln2->gpio.irq_not_threaded = true;  in dln2_gpio_probe()
472 	dln2->gpio.set = dln2_gpio_set;  in dln2_gpio_probe()
473 	dln2->gpio.get = dln2_gpio_get;  in dln2_gpio_probe()
474 	dln2->gpio.request = dln2_gpio_request;  in dln2_gpio_probe()
475 	dln2->gpio.free = dln2_gpio_free;  in dln2_gpio_probe()
476 	dln2->gpio.get_direction = dln2_gpio_get_direction;  in dln2_gpio_probe()
477 	dln2->gpio.direction_input = dln2_gpio_direction_input;  in dln2_gpio_probe()
478 	dln2->gpio.direction_output = dln2_gpio_direction_output;  in dln2_gpio_probe()
479 	dln2->gpio.set_debounce = dln2_gpio_set_debounce;  in dln2_gpio_probe()
481 	platform_set_drvdata(pdev, dln2);  in dln2_gpio_probe()
483 	ret = gpiochip_add(&dln2->gpio);  in dln2_gpio_probe()
489 	ret = gpiochip_irqchip_add(&dln2->gpio, &dln2_gpio_irqchip, 0,  in dln2_gpio_probe()
506 	gpiochip_remove(&dln2->gpio);  in dln2_gpio_probe()
513 	struct dln2_gpio *dln2 = platform_get_drvdata(pdev);  in dln2_gpio_remove()  local
516 	gpiochip_remove(&dln2->gpio);  in dln2_gpio_remove()