9927 static struct drm_privacy_screen *lcdshadow_dev;  variable
9977 	lcdshadow_dev = drm_privacy_screen_register(&tpacpi_pdev->dev,  in tpacpi_lcdshadow_init()
9979 	if (IS_ERR(lcdshadow_dev))  in tpacpi_lcdshadow_init()
9980 		return PTR_ERR(lcdshadow_dev);  in tpacpi_lcdshadow_init()
9987 	drm_privacy_screen_unregister(lcdshadow_dev);  in lcdshadow_exit()
9992 	if (!lcdshadow_dev)  in lcdshadow_resume()
9995 	mutex_lock(&lcdshadow_dev->lock);  in lcdshadow_resume()
9996 	lcdshadow_set_sw_state(lcdshadow_dev, lcdshadow_dev->sw_state);  in lcdshadow_resume()
9997 	mutex_unlock(&lcdshadow_dev->lock);  in lcdshadow_resume()
10002 	if (!lcdshadow_dev) {  in lcdshadow_read()
10005 		seq_printf(m, "status:\t\t%d\n", lcdshadow_dev->hw_state);  in lcdshadow_read()
10017 	if (!lcdshadow_dev)  in lcdshadow_write()
10029 	mutex_lock(&lcdshadow_dev->lock);  in lcdshadow_write()
10030 	res = lcdshadow_set_sw_state(lcdshadow_dev, state);  in lcdshadow_write()
10031 	mutex_unlock(&lcdshadow_dev->lock);  in lcdshadow_write()
10033 	drm_privacy_screen_call_notifier_chain(lcdshadow_dev);  in lcdshadow_write()
11018 	if (lcdshadow_dev && hkey_event == TP_HKEY_EV_PRIVACYGUARD_TOGGLE) {  in tpacpi_driver_event()
11022 		mutex_lock(&lcdshadow_dev->lock);  in tpacpi_driver_event()
11023 		old_hw_state = lcdshadow_dev->hw_state;  in tpacpi_driver_event()
11024 		lcdshadow_get_hw_state(lcdshadow_dev);  in tpacpi_driver_event()
11025 		changed = lcdshadow_dev->hw_state != old_hw_state;  in tpacpi_driver_event()
11026 		mutex_unlock(&lcdshadow_dev->lock);  in tpacpi_driver_event()
11029 			drm_privacy_screen_call_notifier_chain(lcdshadow_dev);  in tpacpi_driver_event()