51 static int acpi_fan_suspend(struct device *dev);
52 static int acpi_fan_resume(struct device *dev);
101 	struct acpi_device *device = cdev->devdata;  in fan_get_max_state()  local
102 	struct acpi_fan *fan = acpi_driver_data(device);  in fan_get_max_state()
111 static int fan_get_state_acpi4(struct acpi_device *device, unsigned long *state)  in fan_get_state_acpi4()  argument
114 	struct acpi_fan *fan = acpi_driver_data(device);  in fan_get_state_acpi4()
119 	status = acpi_evaluate_object(device->handle, "_FST", NULL, &buffer);  in fan_get_state_acpi4()
121 		dev_err(&device->dev, "Get fan state failed\n");  in fan_get_state_acpi4()
129 		dev_err(&device->dev, "Invalid _FST data\n");  in fan_get_state_acpi4()
140 		dev_dbg(&device->dev, "Invalid control value returned\n");  in fan_get_state_acpi4()
152 static int fan_get_state(struct acpi_device *device, unsigned long *state)  in fan_get_state()  argument
157 	result = acpi_device_update_power(device, &acpi_state);  in fan_get_state()
169 	struct acpi_device *device = cdev->devdata;  in fan_get_cur_state()  local
170 	struct acpi_fan *fan = acpi_driver_data(device);  in fan_get_cur_state()
173 		return fan_get_state_acpi4(device, state);  in fan_get_cur_state()
175 		return fan_get_state(device, state);  in fan_get_cur_state()
178 static int fan_set_state(struct acpi_device *device, unsigned long state)  in fan_set_state()  argument
183 	return acpi_device_set_power(device,  in fan_set_state()
187 static int fan_set_state_acpi4(struct acpi_device *device, unsigned long state)  in fan_set_state_acpi4()  argument
189 	struct acpi_fan *fan = acpi_driver_data(device);  in fan_set_state_acpi4()
195 	status = acpi_execute_simple_method(device->handle, "_FSL",  in fan_set_state_acpi4()
198 		dev_dbg(&device->dev, "Failed to set state by _FSL\n");  in fan_set_state_acpi4()
208 	struct acpi_device *device = cdev->devdata;  in fan_set_cur_state()  local
209 	struct acpi_fan *fan = acpi_driver_data(device);  in fan_set_cur_state()
212 		return fan_set_state_acpi4(device, state);  in fan_set_cur_state()
214 		return fan_set_state(device, state);  in fan_set_cur_state()
228 static bool acpi_fan_is_acpi4(struct acpi_device *device)  in acpi_fan_is_acpi4()  argument
230 	return acpi_has_method(device->handle, "_FIF") &&  in acpi_fan_is_acpi4()
231 	       acpi_has_method(device->handle, "_FPS") &&  in acpi_fan_is_acpi4()
232 	       acpi_has_method(device->handle, "_FSL") &&  in acpi_fan_is_acpi4()
233 	       acpi_has_method(device->handle, "_FST");  in acpi_fan_is_acpi4()
236 static int acpi_fan_get_fif(struct acpi_device *device)  in acpi_fan_get_fif()  argument
239 	struct acpi_fan *fan = acpi_driver_data(device);  in acpi_fan_get_fif()
245 	status = acpi_evaluate_object(device->handle, "_FIF", NULL, &buffer);  in acpi_fan_get_fif()
251 		dev_err(&device->dev, "Invalid _FIF data\n");  in acpi_fan_get_fif()
258 		dev_err(&device->dev, "Invalid _FIF element\n");  in acpi_fan_get_fif()
274 static int acpi_fan_get_fps(struct acpi_device *device)  in acpi_fan_get_fps()  argument
276 	struct acpi_fan *fan = acpi_driver_data(device);  in acpi_fan_get_fps()
282 	status = acpi_evaluate_object(device->handle, "_FPS", NULL, &buffer);  in acpi_fan_get_fps()
288 		dev_err(&device->dev, "Invalid _FPS data\n");  in acpi_fan_get_fps()
294 	fan->fps = devm_kzalloc(&device->dev,  in acpi_fan_get_fps()
298 		dev_err(&device->dev, "Not enough memory\n");  in acpi_fan_get_fps()
308 			dev_err(&device->dev, "Invalid _FPS element\n");  in acpi_fan_get_fps()
327 	struct acpi_device *device = ACPI_COMPANION(&pdev->dev);  in acpi_fan_probe()  local
332 		dev_err(&device->dev, "No memory for fan\n");  in acpi_fan_probe()
335 	device->driver_data = fan;  in acpi_fan_probe()
338 	if (acpi_fan_is_acpi4(device)) {  in acpi_fan_probe()
339 		if (acpi_fan_get_fif(device) || acpi_fan_get_fps(device))  in acpi_fan_probe()
343 		result = acpi_device_update_power(device, NULL);  in acpi_fan_probe()
345 			dev_err(&device->dev, "Setting initial power state\n");  in acpi_fan_probe()
353 		name = acpi_device_bid(device);  in acpi_fan_probe()
355 	cdev = thermal_cooling_device_register(name, device,  in acpi_fan_probe()
366 				   &cdev->device.kobj,  in acpi_fan_probe()
371 	result = sysfs_create_link(&cdev->device.kobj,  in acpi_fan_probe()
386 	sysfs_remove_link(&fan->cdev->device.kobj, "device");  in acpi_fan_remove()
393 static int acpi_fan_suspend(struct device *dev)  in acpi_fan_suspend()
404 static int acpi_fan_resume(struct device *dev)  in acpi_fan_resume()