3  * Driver for MStar msg2638 touchscreens
71 	struct msg2638_ts_data *msg2638 = msg2638_handler;  in msg2638_ts_irq_handler()  local
72 	struct i2c_client *client = msg2638->client;  in msg2638_ts_irq_handler()
73 	struct input_dev *input = msg2638->input_dev;  in msg2638_ts_irq_handler()
118 		touchscreen_report_pos(input, &msg2638->prop, x, y, true);  in msg2638_ts_irq_handler()
121 	input_mt_sync_frame(msg2638->input_dev);  in msg2638_ts_irq_handler()
122 	input_sync(msg2638->input_dev);  in msg2638_ts_irq_handler()
128 static void msg2638_reset(struct msg2638_ts_data *msg2638)  in msg2638_reset()  argument
130 	gpiod_set_value_cansleep(msg2638->reset_gpiod, 1);  in msg2638_reset()
132 	gpiod_set_value_cansleep(msg2638->reset_gpiod, 0);  in msg2638_reset()
136 static int msg2638_start(struct msg2638_ts_data *msg2638)  in msg2638_start()  argument
140 	error = regulator_bulk_enable(ARRAY_SIZE(msg2638->supplies),  in msg2638_start()
141 				      msg2638->supplies);  in msg2638_start()
143 		dev_err(&msg2638->client->dev,  in msg2638_start()
150 	msg2638_reset(msg2638);  in msg2638_start()
152 	enable_irq(msg2638->client->irq);  in msg2638_start()
157 static int msg2638_stop(struct msg2638_ts_data *msg2638)  in msg2638_stop()  argument
161 	disable_irq(msg2638->client->irq);  in msg2638_stop()
163 	error = regulator_bulk_disable(ARRAY_SIZE(msg2638->supplies),  in msg2638_stop()
164 				       msg2638->supplies);  in msg2638_stop()
166 		dev_err(&msg2638->client->dev,  in msg2638_stop()
176 	struct msg2638_ts_data *msg2638 = input_get_drvdata(dev);  in msg2638_input_open()  local
178 	return msg2638_start(msg2638);  in msg2638_input_open()
183 	struct msg2638_ts_data *msg2638 = input_get_drvdata(dev);  in msg2638_input_close()  local
185 	msg2638_stop(msg2638);  in msg2638_input_close()
188 static int msg2638_init_input_dev(struct msg2638_ts_data *msg2638)  in msg2638_init_input_dev()  argument
190 	struct device *dev = &msg2638->client->dev;  in msg2638_init_input_dev()
200 	input_set_drvdata(input_dev, msg2638);  in msg2638_init_input_dev()
201 	msg2638->input_dev = input_dev;  in msg2638_init_input_dev()
212 	touchscreen_parse_properties(input_dev, true, &msg2638->prop);  in msg2638_init_input_dev()
213 	if (!msg2638->prop.max_x || !msg2638->prop.max_y) {  in msg2638_init_input_dev()
237 	struct msg2638_ts_data *msg2638;  in msg2638_ts_probe()  local
245 	msg2638 = devm_kzalloc(dev, sizeof(*msg2638), GFP_KERNEL);  in msg2638_ts_probe()
246 	if (!msg2638)  in msg2638_ts_probe()
249 	msg2638->client = client;  in msg2638_ts_probe()
250 	i2c_set_clientdata(client, msg2638);  in msg2638_ts_probe()
252 	msg2638->supplies[0].supply = "vdd";  in msg2638_ts_probe()
253 	msg2638->supplies[1].supply = "vddio";  in msg2638_ts_probe()
254 	error = devm_regulator_bulk_get(dev, ARRAY_SIZE(msg2638->supplies),  in msg2638_ts_probe()
255 					msg2638->supplies);  in msg2638_ts_probe()
261 	msg2638->reset_gpiod = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);  in msg2638_ts_probe()
262 	if (IS_ERR(msg2638->reset_gpiod)) {  in msg2638_ts_probe()
263 		error = PTR_ERR(msg2638->reset_gpiod);  in msg2638_ts_probe()
268 	error = msg2638_init_input_dev(msg2638);  in msg2638_ts_probe()
277 					  client->name, msg2638);  in msg2638_ts_probe()
289 	struct msg2638_ts_data *msg2638 = i2c_get_clientdata(client);  in msg2638_suspend()  local
291 	mutex_lock(&msg2638->input_dev->mutex);  in msg2638_suspend()
293 	if (input_device_enabled(msg2638->input_dev))  in msg2638_suspend()
294 		msg2638_stop(msg2638);  in msg2638_suspend()
296 	mutex_unlock(&msg2638->input_dev->mutex);  in msg2638_suspend()
304 	struct msg2638_ts_data *msg2638 = i2c_get_clientdata(client);  in msg2638_resume()  local
307 	mutex_lock(&msg2638->input_dev->mutex);  in msg2638_resume()
309 	if (input_device_enabled(msg2638->input_dev))  in msg2638_resume()
310 		ret = msg2638_start(msg2638);  in msg2638_resume()
312 	mutex_unlock(&msg2638->input_dev->mutex);  in msg2638_resume()
320 	{ .compatible = "mstar,msg2638" },
336 MODULE_DESCRIPTION("MStar MSG2638 touchscreen driver");