56 	struct cros_ec_device *ec_dev = data;  in ec_irq_thread()  local
60 	ret = cros_ec_get_next_event(ec_dev, &wake_event);  in ec_irq_thread()
67 	if (wake_event && device_may_wakeup(ec_dev->dev))  in ec_irq_thread()
68 		pm_wakeup_event(ec_dev->dev, 0);  in ec_irq_thread()
71 		blocking_notifier_call_chain(&ec_dev->event_notifier,  in ec_irq_thread()
72 					     0, ec_dev);  in ec_irq_thread()
76 static int cros_ec_sleep_event(struct cros_ec_device *ec_dev, u8 sleep_event)  in cros_ec_sleep_event()  argument
91 	return cros_ec_cmd_xfer(ec_dev, &buf.msg);  in cros_ec_sleep_event()
94 int cros_ec_register(struct cros_ec_device *ec_dev)  in cros_ec_register()  argument
96 	struct device *dev = ec_dev->dev;  in cros_ec_register()
99 	BLOCKING_INIT_NOTIFIER_HEAD(&ec_dev->event_notifier);  in cros_ec_register()
101 	ec_dev->max_request = sizeof(struct ec_params_hello);  in cros_ec_register()
102 	ec_dev->max_response = sizeof(struct ec_response_get_protocol_info);  in cros_ec_register()
103 	ec_dev->max_passthru = 0;  in cros_ec_register()
105 	ec_dev->din = devm_kzalloc(dev, ec_dev->din_size, GFP_KERNEL);  in cros_ec_register()
106 	if (!ec_dev->din)  in cros_ec_register()
109 	ec_dev->dout = devm_kzalloc(dev, ec_dev->dout_size, GFP_KERNEL);  in cros_ec_register()
110 	if (!ec_dev->dout)  in cros_ec_register()
113 	mutex_init(&ec_dev->lock);  in cros_ec_register()
115 	err = cros_ec_query_all(ec_dev);  in cros_ec_register()
121 	if (ec_dev->irq) {  in cros_ec_register()
122 		err = devm_request_threaded_irq(dev, ec_dev->irq, NULL,  in cros_ec_register()
124 				"chromeos-ec", ec_dev);  in cros_ec_register()
127 				ec_dev->irq, err);  in cros_ec_register()
132 	err = mfd_add_devices(ec_dev->dev, PLATFORM_DEVID_AUTO, &ec_cell, 1,  in cros_ec_register()
133 			      NULL, ec_dev->irq, NULL);  in cros_ec_register()
141 	if (ec_dev->max_passthru) {  in cros_ec_register()
150 		err = mfd_add_devices(ec_dev->dev, PLATFORM_DEVID_AUTO,  in cros_ec_register()
151 				      &ec_pd_cell, 1, NULL, ec_dev->irq, NULL);  in cros_ec_register()
173 	err = cros_ec_sleep_event(ec_dev, 0);  in cros_ec_register()
175 		dev_dbg(ec_dev->dev, "Error %d clearing sleep event to ec",  in cros_ec_register()
184 int cros_ec_remove(struct cros_ec_device *ec_dev)  in cros_ec_remove()  argument
186 	mfd_remove_devices(ec_dev->dev);  in cros_ec_remove()
193 int cros_ec_suspend(struct cros_ec_device *ec_dev)  in cros_ec_suspend()  argument
195 	struct device *dev = ec_dev->dev;  in cros_ec_suspend()
203 	ret = cros_ec_sleep_event(ec_dev, sleep_event);  in cros_ec_suspend()
205 		dev_dbg(ec_dev->dev, "Error %d sending suspend event to ec",  in cros_ec_suspend()
209 		ec_dev->wake_enabled = !enable_irq_wake(ec_dev->irq);  in cros_ec_suspend()
211 	disable_irq(ec_dev->irq);  in cros_ec_suspend()
212 	ec_dev->was_wake_device = ec_dev->wake_enabled;  in cros_ec_suspend()
213 	ec_dev->suspended = true;  in cros_ec_suspend()
219 static void cros_ec_report_events_during_suspend(struct cros_ec_device *ec_dev)  in cros_ec_report_events_during_suspend()  argument
221 	while (cros_ec_get_next_event(ec_dev, NULL) > 0)  in cros_ec_report_events_during_suspend()
222 		blocking_notifier_call_chain(&ec_dev->event_notifier,  in cros_ec_report_events_during_suspend()
223 					     1, ec_dev);  in cros_ec_report_events_during_suspend()
226 int cros_ec_resume(struct cros_ec_device *ec_dev)  in cros_ec_resume()  argument
231 	ec_dev->suspended = false;  in cros_ec_resume()
232 	enable_irq(ec_dev->irq);  in cros_ec_resume()
238 	ret = cros_ec_sleep_event(ec_dev, sleep_event);  in cros_ec_resume()
240 		dev_dbg(ec_dev->dev, "Error %d sending resume event to ec",  in cros_ec_resume()
243 	if (ec_dev->wake_enabled) {  in cros_ec_resume()
244 		disable_irq_wake(ec_dev->irq);  in cros_ec_resume()
245 		ec_dev->wake_enabled = 0;  in cros_ec_resume()
251 	cros_ec_report_events_during_suspend(ec_dev);  in cros_ec_resume()