Lines Matching refs:ec_dev
42 struct cros_ec_device *ec_dev = data; in cros_ec_irq_handler() local
44 ec_dev->last_event_time = cros_ec_get_time_ns(); in cros_ec_irq_handler()
59 static bool cros_ec_handle_event(struct cros_ec_device *ec_dev) in cros_ec_handle_event() argument
65 ret = cros_ec_get_next_event(ec_dev, &wake_event, &ec_has_more_events); in cros_ec_handle_event()
72 if (wake_event && device_may_wakeup(ec_dev->dev)) in cros_ec_handle_event()
73 pm_wakeup_event(ec_dev->dev, 0); in cros_ec_handle_event()
76 blocking_notifier_call_chain(&ec_dev->event_notifier, in cros_ec_handle_event()
77 0, ec_dev); in cros_ec_handle_event()
91 struct cros_ec_device *ec_dev = data; in cros_ec_irq_thread() local
95 ec_has_more_events = cros_ec_handle_event(ec_dev); in cros_ec_irq_thread()
102 static int cros_ec_sleep_event(struct cros_ec_device *ec_dev, u8 sleep_event) in cros_ec_sleep_event() argument
116 if (ec_dev->host_sleep_v1) { in cros_ec_sleep_event()
119 ec_dev->suspend_timeout_ms; in cros_ec_sleep_event()
135 ret = cros_ec_cmd_xfer_status(ec_dev, &buf.msg); in cros_ec_sleep_event()
137 if (ret >= 0 && ec_dev->host_sleep_v1 && in cros_ec_sleep_event()
140 ec_dev->last_resume_result = in cros_ec_sleep_event()
157 struct cros_ec_device *ec_dev = container_of(nb, struct cros_ec_device, in cros_ec_ready_event() local
159 u32 host_event = cros_ec_get_host_event(ec_dev); in cros_ec_ready_event()
162 mutex_lock(&ec_dev->lock); in cros_ec_ready_event()
163 cros_ec_query_all(ec_dev); in cros_ec_ready_event()
164 mutex_unlock(&ec_dev->lock); in cros_ec_ready_event()
180 int cros_ec_register(struct cros_ec_device *ec_dev) in cros_ec_register() argument
182 struct device *dev = ec_dev->dev; in cros_ec_register()
185 BLOCKING_INIT_NOTIFIER_HEAD(&ec_dev->event_notifier); in cros_ec_register()
186 BLOCKING_INIT_NOTIFIER_HEAD(&ec_dev->panic_notifier); in cros_ec_register()
188 ec_dev->max_request = sizeof(struct ec_params_hello); in cros_ec_register()
189 ec_dev->max_response = sizeof(struct ec_response_get_protocol_info); in cros_ec_register()
190 ec_dev->max_passthru = 0; in cros_ec_register()
191 ec_dev->ec = NULL; in cros_ec_register()
192 ec_dev->pd = NULL; in cros_ec_register()
193 ec_dev->suspend_timeout_ms = EC_HOST_SLEEP_TIMEOUT_DEFAULT; in cros_ec_register()
195 ec_dev->din = devm_kzalloc(dev, ec_dev->din_size, GFP_KERNEL); in cros_ec_register()
196 if (!ec_dev->din) in cros_ec_register()
199 ec_dev->dout = devm_kzalloc(dev, ec_dev->dout_size, GFP_KERNEL); in cros_ec_register()
200 if (!ec_dev->dout) in cros_ec_register()
203 lockdep_register_key(&ec_dev->lockdep_key); in cros_ec_register()
204 mutex_init(&ec_dev->lock); in cros_ec_register()
205 lockdep_set_class(&ec_dev->lock, &ec_dev->lockdep_key); in cros_ec_register()
208 err = cros_ec_rwsig_continue(ec_dev); in cros_ec_register()
212 err = cros_ec_query_all(ec_dev); in cros_ec_register()
218 if (ec_dev->irq > 0) { in cros_ec_register()
219 err = devm_request_threaded_irq(dev, ec_dev->irq, in cros_ec_register()
223 "chromeos-ec", ec_dev); in cros_ec_register()
226 ec_dev->irq, err); in cros_ec_register()
232 ec_dev->ec = platform_device_register_data(ec_dev->dev, "cros-ec-dev", in cros_ec_register()
235 if (IS_ERR(ec_dev->ec)) { in cros_ec_register()
236 dev_err(ec_dev->dev, in cros_ec_register()
238 err = PTR_ERR(ec_dev->ec); in cros_ec_register()
242 if (ec_dev->max_passthru) { in cros_ec_register()
251 ec_dev->pd = platform_device_register_data(ec_dev->dev, in cros_ec_register()
255 if (IS_ERR(ec_dev->pd)) { in cros_ec_register()
256 dev_err(ec_dev->dev, in cros_ec_register()
258 err = PTR_ERR(ec_dev->pd); in cros_ec_register()
275 err = cros_ec_sleep_event(ec_dev, 0); in cros_ec_register()
277 dev_dbg(ec_dev->dev, "Error %d clearing sleep event to ec\n", in cros_ec_register()
280 if (ec_dev->mkbp_event_supported) { in cros_ec_register()
285 ec_dev->notifier_ready.notifier_call = cros_ec_ready_event; in cros_ec_register()
286 err = blocking_notifier_chain_register(&ec_dev->event_notifier, in cros_ec_register()
287 &ec_dev->notifier_ready); in cros_ec_register()
298 if (ec_dev->mkbp_event_supported) in cros_ec_register()
299 cros_ec_irq_thread(0, ec_dev); in cros_ec_register()
303 platform_device_unregister(ec_dev->ec); in cros_ec_register()
304 platform_device_unregister(ec_dev->pd); in cros_ec_register()
305 mutex_destroy(&ec_dev->lock); in cros_ec_register()
306 lockdep_unregister_key(&ec_dev->lockdep_key); in cros_ec_register()
319 void cros_ec_unregister(struct cros_ec_device *ec_dev) in cros_ec_unregister() argument
321 if (ec_dev->mkbp_event_supported) in cros_ec_unregister()
322 blocking_notifier_chain_unregister(&ec_dev->event_notifier, in cros_ec_unregister()
323 &ec_dev->notifier_ready); in cros_ec_unregister()
324 platform_device_unregister(ec_dev->pd); in cros_ec_unregister()
325 platform_device_unregister(ec_dev->ec); in cros_ec_unregister()
326 mutex_destroy(&ec_dev->lock); in cros_ec_unregister()
327 lockdep_unregister_key(&ec_dev->lockdep_key); in cros_ec_unregister()
332 static void cros_ec_send_suspend_event(struct cros_ec_device *ec_dev) in cros_ec_send_suspend_event() argument
341 ret = cros_ec_sleep_event(ec_dev, sleep_event); in cros_ec_send_suspend_event()
343 dev_dbg(ec_dev->dev, "Error %d sending suspend event to ec\n", in cros_ec_send_suspend_event()
355 int cros_ec_suspend_prepare(struct cros_ec_device *ec_dev) in cros_ec_suspend_prepare() argument
357 cros_ec_send_suspend_event(ec_dev); in cros_ec_suspend_prepare()
362 static void cros_ec_disable_irq(struct cros_ec_device *ec_dev) in cros_ec_disable_irq() argument
364 struct device *dev = ec_dev->dev; in cros_ec_disable_irq()
366 ec_dev->wake_enabled = !enable_irq_wake(ec_dev->irq); in cros_ec_disable_irq()
368 ec_dev->wake_enabled = false; in cros_ec_disable_irq()
370 disable_irq(ec_dev->irq); in cros_ec_disable_irq()
371 ec_dev->suspended = true; in cros_ec_disable_irq()
382 int cros_ec_suspend_late(struct cros_ec_device *ec_dev) in cros_ec_suspend_late() argument
384 cros_ec_disable_irq(ec_dev); in cros_ec_suspend_late()
397 int cros_ec_suspend(struct cros_ec_device *ec_dev) in cros_ec_suspend() argument
399 cros_ec_suspend_prepare(ec_dev); in cros_ec_suspend()
400 cros_ec_suspend_late(ec_dev); in cros_ec_suspend()
405 static void cros_ec_report_events_during_suspend(struct cros_ec_device *ec_dev) in cros_ec_report_events_during_suspend() argument
409 while (ec_dev->mkbp_event_supported && in cros_ec_report_events_during_suspend()
410 cros_ec_get_next_event(ec_dev, &wake_event, NULL) > 0) { in cros_ec_report_events_during_suspend()
411 blocking_notifier_call_chain(&ec_dev->event_notifier, in cros_ec_report_events_during_suspend()
412 1, ec_dev); in cros_ec_report_events_during_suspend()
414 if (wake_event && device_may_wakeup(ec_dev->dev)) in cros_ec_report_events_during_suspend()
415 pm_wakeup_event(ec_dev->dev, 0); in cros_ec_report_events_during_suspend()
419 static void cros_ec_send_resume_event(struct cros_ec_device *ec_dev) in cros_ec_send_resume_event() argument
428 ret = cros_ec_sleep_event(ec_dev, sleep_event); in cros_ec_send_resume_event()
430 dev_dbg(ec_dev->dev, "Error %d sending resume event to ec\n", in cros_ec_send_resume_event()
440 void cros_ec_resume_complete(struct cros_ec_device *ec_dev) in cros_ec_resume_complete() argument
442 cros_ec_send_resume_event(ec_dev); in cros_ec_resume_complete()
448 cros_ec_report_events_during_suspend(ec_dev); in cros_ec_resume_complete()
452 static void cros_ec_enable_irq(struct cros_ec_device *ec_dev) in cros_ec_enable_irq() argument
454 ec_dev->suspended = false; in cros_ec_enable_irq()
455 enable_irq(ec_dev->irq); in cros_ec_enable_irq()
457 if (ec_dev->wake_enabled) in cros_ec_enable_irq()
458 disable_irq_wake(ec_dev->irq); in cros_ec_enable_irq()
469 int cros_ec_resume_early(struct cros_ec_device *ec_dev) in cros_ec_resume_early() argument
471 cros_ec_enable_irq(ec_dev); in cros_ec_resume_early()
484 int cros_ec_resume(struct cros_ec_device *ec_dev) in cros_ec_resume() argument
486 cros_ec_resume_early(ec_dev); in cros_ec_resume()
487 cros_ec_resume_complete(ec_dev); in cros_ec_resume()