37 	struct cros_ec_device *ec_dev = data;  in ec_irq_handler()  local
39 	ec_dev->last_event_time = cros_ec_get_time_ns();  in ec_irq_handler()
54 bool cros_ec_handle_event(struct cros_ec_device *ec_dev)  in cros_ec_handle_event()  argument
60 	ret = cros_ec_get_next_event(ec_dev, &wake_event, &ec_has_more_events);  in cros_ec_handle_event()
67 	if (wake_event && device_may_wakeup(ec_dev->dev))  in cros_ec_handle_event()
68 		pm_wakeup_event(ec_dev->dev, 0);  in cros_ec_handle_event()
71 		blocking_notifier_call_chain(&ec_dev->event_notifier,  in cros_ec_handle_event()
72 					     0, ec_dev);  in cros_ec_handle_event()
80 	struct cros_ec_device *ec_dev = data;  in ec_irq_thread()  local
84 		ec_has_more_events = cros_ec_handle_event(ec_dev);  in ec_irq_thread()
90 static int cros_ec_sleep_event(struct cros_ec_device *ec_dev, u8 sleep_event)  in cros_ec_sleep_event()  argument
104 	if (ec_dev->host_sleep_v1) {  in cros_ec_sleep_event()
123 	ret = cros_ec_cmd_xfer_status(ec_dev, &buf.msg);  in cros_ec_sleep_event()
126 	if (ret >= 0 && ec_dev->host_sleep_v1 &&  in cros_ec_sleep_event()
128 		ec_dev->last_resume_result =  in cros_ec_sleep_event()
145 	struct cros_ec_device *ec_dev = container_of(nb, struct cros_ec_device,  in cros_ec_ready_event()  local
147 	u32 host_event = cros_ec_get_host_event(ec_dev);  in cros_ec_ready_event()
150 		mutex_lock(&ec_dev->lock);  in cros_ec_ready_event()
151 		cros_ec_query_all(ec_dev);  in cros_ec_ready_event()
152 		mutex_unlock(&ec_dev->lock);  in cros_ec_ready_event()
168 int cros_ec_register(struct cros_ec_device *ec_dev)  in cros_ec_register()  argument
170 	struct device *dev = ec_dev->dev;  in cros_ec_register()
173 	BLOCKING_INIT_NOTIFIER_HEAD(&ec_dev->event_notifier);  in cros_ec_register()
175 	ec_dev->max_request = sizeof(struct ec_params_hello);  in cros_ec_register()
176 	ec_dev->max_response = sizeof(struct ec_response_get_protocol_info);  in cros_ec_register()
177 	ec_dev->max_passthru = 0;  in cros_ec_register()
179 	ec_dev->din = devm_kzalloc(dev, ec_dev->din_size, GFP_KERNEL);  in cros_ec_register()
180 	if (!ec_dev->din)  in cros_ec_register()
183 	ec_dev->dout = devm_kzalloc(dev, ec_dev->dout_size, GFP_KERNEL);  in cros_ec_register()
184 	if (!ec_dev->dout)  in cros_ec_register()
187 	mutex_init(&ec_dev->lock);  in cros_ec_register()
189 	err = cros_ec_query_all(ec_dev);  in cros_ec_register()
195 	if (ec_dev->irq > 0) {  in cros_ec_register()
196 		err = devm_request_threaded_irq(dev, ec_dev->irq,  in cros_ec_register()
200 						"chromeos-ec", ec_dev);  in cros_ec_register()
203 				ec_dev->irq, err);  in cros_ec_register()
209 	ec_dev->ec = platform_device_register_data(ec_dev->dev, "cros-ec-dev",  in cros_ec_register()
212 	if (IS_ERR(ec_dev->ec)) {  in cros_ec_register()
213 		dev_err(ec_dev->dev,  in cros_ec_register()
215 		return PTR_ERR(ec_dev->ec);  in cros_ec_register()
218 	if (ec_dev->max_passthru) {  in cros_ec_register()
227 		ec_dev->pd = platform_device_register_data(ec_dev->dev,  in cros_ec_register()
231 		if (IS_ERR(ec_dev->pd)) {  in cros_ec_register()
232 			dev_err(ec_dev->dev,  in cros_ec_register()
234 			platform_device_unregister(ec_dev->ec);  in cros_ec_register()
235 			return PTR_ERR(ec_dev->pd);  in cros_ec_register()
242 			platform_device_unregister(ec_dev->pd);  in cros_ec_register()
243 			platform_device_unregister(ec_dev->ec);  in cros_ec_register()
253 	err = cros_ec_sleep_event(ec_dev, 0);  in cros_ec_register()
255 		dev_dbg(ec_dev->dev, "Error %d clearing sleep event to ec",  in cros_ec_register()
258 	if (ec_dev->mkbp_event_supported) {  in cros_ec_register()
263 		ec_dev->notifier_ready.notifier_call = cros_ec_ready_event;  in cros_ec_register()
264 		err = blocking_notifier_chain_register(&ec_dev->event_notifier,  in cros_ec_register()
265 						      &ec_dev->notifier_ready);  in cros_ec_register()
284 int cros_ec_unregister(struct cros_ec_device *ec_dev)  in cros_ec_unregister()  argument
286 	if (ec_dev->pd)  in cros_ec_unregister()
287 		platform_device_unregister(ec_dev->pd);  in cros_ec_unregister()
288 	platform_device_unregister(ec_dev->ec);  in cros_ec_unregister()
303 int cros_ec_suspend(struct cros_ec_device *ec_dev)  in cros_ec_suspend()  argument
305 	struct device *dev = ec_dev->dev;  in cros_ec_suspend()
313 	ret = cros_ec_sleep_event(ec_dev, sleep_event);  in cros_ec_suspend()
315 		dev_dbg(ec_dev->dev, "Error %d sending suspend event to ec",  in cros_ec_suspend()
319 		ec_dev->wake_enabled = !enable_irq_wake(ec_dev->irq);  in cros_ec_suspend()
321 	disable_irq(ec_dev->irq);  in cros_ec_suspend()
322 	ec_dev->was_wake_device = ec_dev->wake_enabled;  in cros_ec_suspend()
323 	ec_dev->suspended = true;  in cros_ec_suspend()
329 static void cros_ec_report_events_during_suspend(struct cros_ec_device *ec_dev)  in cros_ec_report_events_during_suspend()  argument
331 	while (ec_dev->mkbp_event_supported &&  in cros_ec_report_events_during_suspend()
332 	       cros_ec_get_next_event(ec_dev, NULL, NULL) > 0)  in cros_ec_report_events_during_suspend()
333 		blocking_notifier_call_chain(&ec_dev->event_notifier,  in cros_ec_report_events_during_suspend()
334 					     1, ec_dev);  in cros_ec_report_events_during_suspend()
345 int cros_ec_resume(struct cros_ec_device *ec_dev)  in cros_ec_resume()  argument
350 	ec_dev->suspended = false;  in cros_ec_resume()
351 	enable_irq(ec_dev->irq);  in cros_ec_resume()
357 	ret = cros_ec_sleep_event(ec_dev, sleep_event);  in cros_ec_resume()
359 		dev_dbg(ec_dev->dev, "Error %d sending resume event to ec",  in cros_ec_resume()
362 	if (ec_dev->wake_enabled) {  in cros_ec_resume()
363 		disable_irq_wake(ec_dev->irq);  in cros_ec_resume()
364 		ec_dev->wake_enabled = 0;  in cros_ec_resume()
370 	cros_ec_report_events_during_suspend(ec_dev);  in cros_ec_resume()