47 static int acpi_fan_suspend(struct device *dev);
48 static int acpi_fan_resume(struct device *dev);
97 	struct acpi_device *device = cdev->devdata;  in fan_get_max_state()  local
98 	struct acpi_fan *fan = acpi_driver_data(device);  in fan_get_max_state()
107 static int fan_get_state_acpi4(struct acpi_device *device, unsigned long *state)  in fan_get_state_acpi4()  argument
110 	struct acpi_fan *fan = acpi_driver_data(device);  in fan_get_state_acpi4()
115 	status = acpi_evaluate_object(device->handle, "_FST", NULL, &buffer);  in fan_get_state_acpi4()
117 		dev_err(&device->dev, "Get fan state failed\n");  in fan_get_state_acpi4()
125 		dev_err(&device->dev, "Invalid _FST data\n");  in fan_get_state_acpi4()
136 		dev_dbg(&device->dev, "Invalid control value returned\n");  in fan_get_state_acpi4()
148 static int fan_get_state(struct acpi_device *device, unsigned long *state)  in fan_get_state()  argument
153 	result = acpi_device_update_power(device, &acpi_state);  in fan_get_state()
166 	struct acpi_device *device = cdev->devdata;  in fan_get_cur_state()  local
167 	struct acpi_fan *fan = acpi_driver_data(device);  in fan_get_cur_state()
170 		return fan_get_state_acpi4(device, state);  in fan_get_cur_state()
172 		return fan_get_state(device, state);  in fan_get_cur_state()
175 static int fan_set_state(struct acpi_device *device, unsigned long state)  in fan_set_state()  argument
180 	return acpi_device_set_power(device,  in fan_set_state()
184 static int fan_set_state_acpi4(struct acpi_device *device, unsigned long state)  in fan_set_state_acpi4()  argument
186 	struct acpi_fan *fan = acpi_driver_data(device);  in fan_set_state_acpi4()
192 	status = acpi_execute_simple_method(device->handle, "_FSL",  in fan_set_state_acpi4()
195 		dev_dbg(&device->dev, "Failed to set state by _FSL\n");  in fan_set_state_acpi4()
205 	struct acpi_device *device = cdev->devdata;  in fan_set_cur_state()  local
206 	struct acpi_fan *fan = acpi_driver_data(device);  in fan_set_cur_state()
209 		return fan_set_state_acpi4(device, state);  in fan_set_cur_state()
211 		return fan_set_state(device, state);  in fan_set_cur_state()
225 static bool acpi_fan_is_acpi4(struct acpi_device *device)  in acpi_fan_is_acpi4()  argument
227 	return acpi_has_method(device->handle, "_FIF") &&  in acpi_fan_is_acpi4()
228 	       acpi_has_method(device->handle, "_FPS") &&  in acpi_fan_is_acpi4()
229 	       acpi_has_method(device->handle, "_FSL") &&  in acpi_fan_is_acpi4()
230 	       acpi_has_method(device->handle, "_FST");  in acpi_fan_is_acpi4()
233 static int acpi_fan_get_fif(struct acpi_device *device)  in acpi_fan_get_fif()  argument
236 	struct acpi_fan *fan = acpi_driver_data(device);  in acpi_fan_get_fif()
242 	status = acpi_evaluate_object(device->handle, "_FIF", NULL, &buffer);  in acpi_fan_get_fif()
248 		dev_err(&device->dev, "Invalid _FIF data\n");  in acpi_fan_get_fif()
255 		dev_err(&device->dev, "Invalid _FIF element\n");  in acpi_fan_get_fif()
271 static int acpi_fan_get_fps(struct acpi_device *device)  in acpi_fan_get_fps()  argument
273 	struct acpi_fan *fan = acpi_driver_data(device);  in acpi_fan_get_fps()
279 	status = acpi_evaluate_object(device->handle, "_FPS", NULL, &buffer);  in acpi_fan_get_fps()
285 		dev_err(&device->dev, "Invalid _FPS data\n");  in acpi_fan_get_fps()
291 	fan->fps = devm_kzalloc(&device->dev,  in acpi_fan_get_fps()
295 		dev_err(&device->dev, "Not enough memory\n");  in acpi_fan_get_fps()
305 			dev_err(&device->dev, "Invalid _FPS element\n");  in acpi_fan_get_fps()
324 	struct acpi_device *device = ACPI_COMPANION(&pdev->dev);  in acpi_fan_probe()  local
329 		dev_err(&device->dev, "No memory for fan\n");  in acpi_fan_probe()
332 	device->driver_data = fan;  in acpi_fan_probe()
335 	if (acpi_fan_is_acpi4(device)) {  in acpi_fan_probe()
336 		if (acpi_fan_get_fif(device) || acpi_fan_get_fps(device))  in acpi_fan_probe()
340 		result = acpi_device_update_power(device, NULL);  in acpi_fan_probe()
342 			dev_err(&device->dev, "Setting initial power state\n");  in acpi_fan_probe()
350 		name = acpi_device_bid(device);  in acpi_fan_probe()
352 	cdev = thermal_cooling_device_register(name, device,  in acpi_fan_probe()
363 				   &cdev->device.kobj,  in acpi_fan_probe()
368 	result = sysfs_create_link(&cdev->device.kobj,  in acpi_fan_probe()
383 	sysfs_remove_link(&fan->cdev->device.kobj, "device");  in acpi_fan_remove()
390 static int acpi_fan_suspend(struct device *dev)  in acpi_fan_suspend()
401 static int acpi_fan_resume(struct device *dev)  in acpi_fan_resume()