38 static int yoga_c630_ec_request(struct yoga_c630_ec *ec, u8 *req, size_t req_len,  in yoga_c630_ec_request()  argument
43 	lockdep_assert_held(&ec->lock);  in yoga_c630_ec_request()
45 	ret = i2c_smbus_write_i2c_block_data(ec->client, LENOVO_EC_REQUEST_REG,  in yoga_c630_ec_request()
50 	return i2c_smbus_read_i2c_block_data(ec->client, LENOVO_EC_RESPONSE_REG,  in yoga_c630_ec_request()
54 int yoga_c630_ec_read8(struct yoga_c630_ec *ec, u8 addr)  in yoga_c630_ec_read8()  argument
60 	guard(mutex)(&ec->lock);  in yoga_c630_ec_read8()
63 	ret = yoga_c630_ec_request(ec, req, sizeof(req), &val, 1);  in yoga_c630_ec_read8()
71 int yoga_c630_ec_read16(struct yoga_c630_ec *ec, u8 addr)  in yoga_c630_ec_read16()  argument
82 	guard(mutex)(&ec->lock);  in yoga_c630_ec_read16()
85 	ret = yoga_c630_ec_request(ec, req, sizeof(req), &lsb, 1);  in yoga_c630_ec_read16()
90 	ret = yoga_c630_ec_request(ec, req, sizeof(req), &msb, 1);  in yoga_c630_ec_read16()
98 u16 yoga_c630_ec_ucsi_get_version(struct yoga_c630_ec *ec)  in yoga_c630_ec_ucsi_get_version()  argument
105 	guard(mutex)(&ec->lock);  in yoga_c630_ec_ucsi_get_version()
108 	ret = yoga_c630_ec_request(ec, req, sizeof(req), &lsb, 1);  in yoga_c630_ec_ucsi_get_version()
113 	ret = yoga_c630_ec_request(ec, req, sizeof(req), &msb, 1);  in yoga_c630_ec_ucsi_get_version()
121 int yoga_c630_ec_ucsi_write(struct yoga_c630_ec *ec,  in yoga_c630_ec_ucsi_write()  argument
126 	mutex_lock(&ec->lock);  in yoga_c630_ec_ucsi_write()
127 	ret = i2c_smbus_write_i2c_block_data(ec->client, LENOVO_EC_UCSI_WRITE,  in yoga_c630_ec_ucsi_write()
129 	mutex_unlock(&ec->lock);  in yoga_c630_ec_ucsi_write()
135 int yoga_c630_ec_ucsi_read(struct yoga_c630_ec *ec,  in yoga_c630_ec_ucsi_read()  argument
140 	mutex_lock(&ec->lock);  in yoga_c630_ec_ucsi_read()
141 	ret = i2c_smbus_read_i2c_block_data(ec->client, LENOVO_EC_UCSI_READ,  in yoga_c630_ec_ucsi_read()
143 	mutex_unlock(&ec->lock);  in yoga_c630_ec_ucsi_read()
152 	struct yoga_c630_ec *ec = data;  in yoga_c630_ec_thread_intr()  local
156 	mutex_lock(&ec->lock);  in yoga_c630_ec_thread_intr()
157 	ret = yoga_c630_ec_request(ec, req, sizeof(req), &event, 1);  in yoga_c630_ec_thread_intr()
158 	mutex_unlock(&ec->lock);  in yoga_c630_ec_thread_intr()
162 	blocking_notifier_call_chain(&ec->notifier_list, event, ec);  in yoga_c630_ec_thread_intr()
168  * yoga_c630_ec_register_notify - Register a notifier callback for EC events.
169  * @ec: Yoga C630 EC
174 int yoga_c630_ec_register_notify(struct yoga_c630_ec *ec, struct notifier_block *nb)  in yoga_c630_ec_register_notify()  argument
176 	return blocking_notifier_chain_register(&ec->notifier_list, nb);  in yoga_c630_ec_register_notify()
181  * yoga_c630_ec_unregister_notify - Unregister notifier callback for EC events.
182  * @ec: Yoga C630 EC
188 void yoga_c630_ec_unregister_notify(struct yoga_c630_ec *ec, struct notifier_block *nb)  in yoga_c630_ec_unregister_notify()  argument
190 	blocking_notifier_chain_unregister(&ec->notifier_list, nb);  in yoga_c630_ec_unregister_notify()
210 			      struct yoga_c630_ec *ec)  in yoga_c630_aux_init()  argument
223 	adev->dev.platform_data = ec;  in yoga_c630_aux_init()
243 	struct yoga_c630_ec *ec;  in yoga_c630_ec_probe()  local
246 	ec = devm_kzalloc(dev, sizeof(*ec), GFP_KERNEL);  in yoga_c630_ec_probe()
247 	if (!ec)  in yoga_c630_ec_probe()
250 	mutex_init(&ec->lock);  in yoga_c630_ec_probe()
251 	ec->client = client;  in yoga_c630_ec_probe()
252 	BLOCKING_INIT_NOTIFIER_HEAD(&ec->notifier_list);  in yoga_c630_ec_probe()
256 					IRQF_ONESHOT, "yoga_c630_ec", ec);  in yoga_c630_ec_probe()
260 	ret = yoga_c630_aux_init(dev, YOGA_C630_DEV_PSY, ec);  in yoga_c630_ec_probe()
264 	return yoga_c630_aux_init(dev, YOGA_C630_DEV_UCSI, ec);  in yoga_c630_ec_probe()
269 	{ .compatible = "lenovo,yoga-c630-ec" },
275 	{ "yoga-c630-ec", },
282 		.name = "yoga-c630-ec",