39 static int imagis_i2c_read_reg(struct imagis_ts *ts,  in imagis_i2c_read_reg()  argument
46 			.addr = ts->client->addr,  in imagis_i2c_read_reg()
51 			.addr = ts->client->addr,  in imagis_i2c_read_reg()
62 		ret = i2c_transfer(ts->client->adapter, msg, ARRAY_SIZE(msg));  in imagis_i2c_read_reg()
69 		dev_err(&ts->client->dev,  in imagis_i2c_read_reg()
79 	struct imagis_ts *ts = dev_id;  in imagis_interrupt()  local
85 	error = imagis_i2c_read_reg(ts, IST3038C_REG_INTR_MESSAGE,  in imagis_interrupt()
88 		dev_err(&ts->client->dev,  in imagis_interrupt()
95 		dev_err(&ts->client->dev,  in imagis_interrupt()
104 		error = imagis_i2c_read_reg(ts,  in imagis_interrupt()
108 			dev_err(&ts->client->dev,  in imagis_interrupt()
114 		input_mt_slot(ts->input_dev, i);  in imagis_interrupt()
115 		input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER,  in imagis_interrupt()
117 		touchscreen_report_pos(ts->input_dev, &ts->prop,  in imagis_interrupt()
121 		input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR,  in imagis_interrupt()
125 	input_mt_sync_frame(ts->input_dev);  in imagis_interrupt()
126 	input_sync(ts->input_dev);  in imagis_interrupt()
134 	struct imagis_ts *ts = _ts;  in imagis_power_off()  local
136 	regulator_bulk_disable(ARRAY_SIZE(ts->supplies), ts->supplies);  in imagis_power_off()
139 static int imagis_power_on(struct imagis_ts *ts)  in imagis_power_on()  argument
143 	error = regulator_bulk_enable(ARRAY_SIZE(ts->supplies), ts->supplies);  in imagis_power_on()
152 static int imagis_start(struct imagis_ts *ts)  in imagis_start()  argument
156 	error = imagis_power_on(ts);  in imagis_start()
160 	enable_irq(ts->client->irq);  in imagis_start()
165 static int imagis_stop(struct imagis_ts *ts)  in imagis_stop()  argument
167 	disable_irq(ts->client->irq);  in imagis_stop()
169 	imagis_power_off(ts);  in imagis_stop()
176 	struct imagis_ts *ts = input_get_drvdata(dev);  in imagis_input_open()  local
178 	return imagis_start(ts);  in imagis_input_open()
183 	struct imagis_ts *ts = input_get_drvdata(dev);  in imagis_input_close()  local
185 	imagis_stop(ts);  in imagis_input_close()
188 static int imagis_init_input_dev(struct imagis_ts *ts)  in imagis_init_input_dev()  argument
193 	input_dev = devm_input_allocate_device(&ts->client->dev);  in imagis_init_input_dev()
197 	ts->input_dev = input_dev;  in imagis_init_input_dev()
205 	input_set_drvdata(input_dev, ts);  in imagis_init_input_dev()
211 	touchscreen_parse_properties(input_dev, true, &ts->prop);  in imagis_init_input_dev()
212 	if (!ts->prop.max_x || !ts->prop.max_y) {  in imagis_init_input_dev()
213 		dev_err(&ts->client->dev,  in imagis_init_input_dev()
222 		dev_err(&ts->client->dev,  in imagis_init_input_dev()
229 		dev_err(&ts->client->dev,  in imagis_init_input_dev()
237 static int imagis_init_regulators(struct imagis_ts *ts)  in imagis_init_regulators()  argument
239 	struct i2c_client *client = ts->client;  in imagis_init_regulators()
241 	ts->supplies[0].supply = "vdd";  in imagis_init_regulators()
242 	ts->supplies[1].supply = "vddio";  in imagis_init_regulators()
244 				       ARRAY_SIZE(ts->supplies),  in imagis_init_regulators()
245 				       ts->supplies);  in imagis_init_regulators()
251 	struct imagis_ts *ts;  in imagis_probe()  local
254 	ts = devm_kzalloc(dev, sizeof(*ts), GFP_KERNEL);  in imagis_probe()
255 	if (!ts)  in imagis_probe()
258 	ts->client = i2c;  in imagis_probe()
260 	error = imagis_init_regulators(ts);  in imagis_probe()
266 	error = imagis_power_on(ts);  in imagis_probe()
272 	error = devm_add_action_or_reset(dev, imagis_power_off, ts);  in imagis_probe()
278 	error = imagis_i2c_read_reg(ts,  in imagis_probe()
294 					  "imagis-touchscreen", ts);  in imagis_probe()
301 	error = imagis_init_input_dev(ts);  in imagis_probe()
311 	struct imagis_ts *ts = i2c_get_clientdata(client);  in imagis_suspend()  local
314 	mutex_lock(&ts->input_dev->mutex);  in imagis_suspend()
316 	if (input_device_enabled(ts->input_dev))  in imagis_suspend()
317 		retval = imagis_stop(ts);  in imagis_suspend()
319 	mutex_unlock(&ts->input_dev->mutex);  in imagis_suspend()
327 	struct imagis_ts *ts = i2c_get_clientdata(client);  in imagis_resume()  local
330 	mutex_lock(&ts->input_dev->mutex);  in imagis_resume()
332 	if (input_device_enabled(ts->input_dev))  in imagis_resume()
333 		retval = imagis_start(ts);  in imagis_resume()
335 	mutex_unlock(&ts->input_dev->mutex);  in imagis_resume()