41 static int imagis_i2c_read_reg(struct imagis_ts *ts,  in imagis_i2c_read_reg()  argument
48 			.addr = ts->client->addr,  in imagis_i2c_read_reg()
53 			.addr = ts->client->addr,  in imagis_i2c_read_reg()
64 		ret = i2c_transfer(ts->client->adapter, msg, ARRAY_SIZE(msg));  in imagis_i2c_read_reg()
71 		dev_err(&ts->client->dev,  in imagis_i2c_read_reg()
81 	struct imagis_ts *ts = dev_id;  in imagis_interrupt()  local
87 	error = imagis_i2c_read_reg(ts, IST3038C_REG_INTR_MESSAGE,  in imagis_interrupt()
90 		dev_err(&ts->client->dev,  in imagis_interrupt()
98 		dev_err(&ts->client->dev,  in imagis_interrupt()
107 		error = imagis_i2c_read_reg(ts,  in imagis_interrupt()
111 			dev_err(&ts->client->dev,  in imagis_interrupt()
117 		input_mt_slot(ts->input_dev, i);  in imagis_interrupt()
118 		input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER,  in imagis_interrupt()
120 		touchscreen_report_pos(ts->input_dev, &ts->prop,  in imagis_interrupt()
124 		input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR,  in imagis_interrupt()
129 	input_mt_sync_frame(ts->input_dev);  in imagis_interrupt()
130 	input_sync(ts->input_dev);  in imagis_interrupt()
138 	struct imagis_ts *ts = _ts;  in imagis_power_off()  local
140 	regulator_bulk_disable(ARRAY_SIZE(ts->supplies), ts->supplies);  in imagis_power_off()
143 static int imagis_power_on(struct imagis_ts *ts)  in imagis_power_on()  argument
147 	error = regulator_bulk_enable(ARRAY_SIZE(ts->supplies), ts->supplies);  in imagis_power_on()
156 static int imagis_start(struct imagis_ts *ts)  in imagis_start()  argument
160 	error = imagis_power_on(ts);  in imagis_start()
164 	enable_irq(ts->client->irq);  in imagis_start()
169 static int imagis_stop(struct imagis_ts *ts)  in imagis_stop()  argument
171 	disable_irq(ts->client->irq);  in imagis_stop()
173 	imagis_power_off(ts);  in imagis_stop()
180 	struct imagis_ts *ts = input_get_drvdata(dev);  in imagis_input_open()  local
182 	return imagis_start(ts);  in imagis_input_open()
187 	struct imagis_ts *ts = input_get_drvdata(dev);  in imagis_input_close()  local
189 	imagis_stop(ts);  in imagis_input_close()
192 static int imagis_init_input_dev(struct imagis_ts *ts)  in imagis_init_input_dev()  argument
197 	input_dev = devm_input_allocate_device(&ts->client->dev);  in imagis_init_input_dev()
201 	ts->input_dev = input_dev;  in imagis_init_input_dev()
209 	input_set_drvdata(input_dev, ts);  in imagis_init_input_dev()
215 	touchscreen_parse_properties(input_dev, true, &ts->prop);  in imagis_init_input_dev()
216 	if (!ts->prop.max_x || !ts->prop.max_y) {  in imagis_init_input_dev()
217 		dev_err(&ts->client->dev,  in imagis_init_input_dev()
226 		dev_err(&ts->client->dev,  in imagis_init_input_dev()
233 		dev_err(&ts->client->dev,  in imagis_init_input_dev()
241 static int imagis_init_regulators(struct imagis_ts *ts)  in imagis_init_regulators()  argument
243 	struct i2c_client *client = ts->client;  in imagis_init_regulators()
245 	ts->supplies[0].supply = "vdd";  in imagis_init_regulators()
246 	ts->supplies[1].supply = "vddio";  in imagis_init_regulators()
248 				       ARRAY_SIZE(ts->supplies),  in imagis_init_regulators()
249 				       ts->supplies);  in imagis_init_regulators()
255 	struct imagis_ts *ts;  in imagis_probe()  local
258 	ts = devm_kzalloc(dev, sizeof(*ts), GFP_KERNEL);  in imagis_probe()
259 	if (!ts)  in imagis_probe()
262 	ts->client = i2c;  in imagis_probe()
264 	error = imagis_init_regulators(ts);  in imagis_probe()
270 	error = imagis_power_on(ts);  in imagis_probe()
276 	error = devm_add_action_or_reset(dev, imagis_power_off, ts);  in imagis_probe()
282 	error = imagis_i2c_read_reg(ts,  in imagis_probe()
298 					  "imagis-touchscreen", ts);  in imagis_probe()
305 	error = imagis_init_input_dev(ts);  in imagis_probe()
315 	struct imagis_ts *ts = i2c_get_clientdata(client);  in imagis_suspend()  local
318 	mutex_lock(&ts->input_dev->mutex);  in imagis_suspend()
320 	if (input_device_enabled(ts->input_dev))  in imagis_suspend()
321 		retval = imagis_stop(ts);  in imagis_suspend()
323 	mutex_unlock(&ts->input_dev->mutex);  in imagis_suspend()
331 	struct imagis_ts *ts = i2c_get_clientdata(client);  in imagis_resume()  local
334 	mutex_lock(&ts->input_dev->mutex);  in imagis_resume()
336 	if (input_device_enabled(ts->input_dev))  in imagis_resume()
337 		retval = imagis_start(ts);  in imagis_resume()
339 	mutex_unlock(&ts->input_dev->mutex);  in imagis_resume()