65 static int imagis_i2c_read_reg(struct imagis_ts *ts,  in imagis_i2c_read_reg()  argument
72 			.addr = ts->client->addr,  in imagis_i2c_read_reg()
77 			.addr = ts->client->addr,  in imagis_i2c_read_reg()
88 		ret = i2c_transfer(ts->client->adapter, msg, ARRAY_SIZE(msg));  in imagis_i2c_read_reg()
95 		dev_err(&ts->client->dev,  in imagis_i2c_read_reg()
105 	struct imagis_ts *ts = dev_id;  in imagis_interrupt()  local
111 	error = imagis_i2c_read_reg(ts, ts->tdata->interrupt_msg_cmd, &intr_message);  in imagis_interrupt()
113 		dev_err(&ts->client->dev,  in imagis_interrupt()
120 		dev_err(&ts->client->dev,  in imagis_interrupt()
129 		if (ts->tdata->protocol_b)  in imagis_interrupt()
130 			error = imagis_i2c_read_reg(ts,  in imagis_interrupt()
131 						    ts->tdata->touch_coord_cmd + (i * 4),  in imagis_interrupt()
134 			error = imagis_i2c_read_reg(ts,  in imagis_interrupt()
135 						    ts->tdata->touch_coord_cmd, &finger_status);  in imagis_interrupt()
137 			dev_err(&ts->client->dev,  in imagis_interrupt()
143 		input_mt_slot(ts->input_dev, i);  in imagis_interrupt()
144 		input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER,  in imagis_interrupt()
146 		touchscreen_report_pos(ts->input_dev, &ts->prop,  in imagis_interrupt()
150 		input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR,  in imagis_interrupt()
156 	for (int i = 0; i < ts->num_keycodes; i++)  in imagis_interrupt()
157 		input_report_key(ts->input_dev, ts->keycodes[i],  in imagis_interrupt()
160 	input_mt_sync_frame(ts->input_dev);  in imagis_interrupt()
161 	input_sync(ts->input_dev);  in imagis_interrupt()
169 	struct imagis_ts *ts = _ts;  in imagis_power_off()  local
171 	regulator_bulk_disable(ARRAY_SIZE(ts->supplies), ts->supplies);  in imagis_power_off()
174 static int imagis_power_on(struct imagis_ts *ts)  in imagis_power_on()  argument
178 	error = regulator_bulk_enable(ARRAY_SIZE(ts->supplies), ts->supplies);  in imagis_power_on()
187 static int imagis_start(struct imagis_ts *ts)  in imagis_start()  argument
191 	error = imagis_power_on(ts);  in imagis_start()
195 	enable_irq(ts->client->irq);  in imagis_start()
200 static int imagis_stop(struct imagis_ts *ts)  in imagis_stop()  argument
202 	disable_irq(ts->client->irq);  in imagis_stop()
204 	imagis_power_off(ts);  in imagis_stop()
211 	struct imagis_ts *ts = input_get_drvdata(dev);  in imagis_input_open()  local
213 	return imagis_start(ts);  in imagis_input_open()
218 	struct imagis_ts *ts = input_get_drvdata(dev);  in imagis_input_close()  local
220 	imagis_stop(ts);  in imagis_input_close()
223 static int imagis_init_input_dev(struct imagis_ts *ts)  in imagis_init_input_dev()  argument
228 	input_dev = devm_input_allocate_device(&ts->client->dev);  in imagis_init_input_dev()
232 	ts->input_dev = input_dev;  in imagis_init_input_dev()
235 	input_dev->phys = "input/ts";  in imagis_init_input_dev()
240 	input_set_drvdata(input_dev, ts);  in imagis_init_input_dev()
245 	if (ts->tdata->touch_keys_supported) {  in imagis_init_input_dev()
246 		ts->num_keycodes = of_property_read_variable_u32_array(  in imagis_init_input_dev()
247 				ts->client->dev.of_node, "linux,keycodes",  in imagis_init_input_dev()
248 				ts->keycodes, 0, ARRAY_SIZE(ts->keycodes));  in imagis_init_input_dev()
249 		if (ts->num_keycodes <= 0) {  in imagis_init_input_dev()
250 			ts->keycodes[0] = KEY_APPSELECT;  in imagis_init_input_dev()
251 			ts->keycodes[1] = KEY_BACK;  in imagis_init_input_dev()
252 			ts->num_keycodes = 2;  in imagis_init_input_dev()
255 		input_dev->keycodemax = ts->num_keycodes;  in imagis_init_input_dev()
256 		input_dev->keycodesize = sizeof(ts->keycodes[0]);  in imagis_init_input_dev()
257 		input_dev->keycode = ts->keycodes;  in imagis_init_input_dev()
260 	for (int i = 0; i < ts->num_keycodes; i++)  in imagis_init_input_dev()
261 		input_set_capability(input_dev, EV_KEY, ts->keycodes[i]);  in imagis_init_input_dev()
263 	touchscreen_parse_properties(input_dev, true, &ts->prop);  in imagis_init_input_dev()
264 	if (!ts->prop.max_x || !ts->prop.max_y) {  in imagis_init_input_dev()
265 		dev_err(&ts->client->dev,  in imagis_init_input_dev()
274 		dev_err(&ts->client->dev,  in imagis_init_input_dev()
281 		dev_err(&ts->client->dev,  in imagis_init_input_dev()
289 static int imagis_init_regulators(struct imagis_ts *ts)  in imagis_init_regulators()  argument
291 	struct i2c_client *client = ts->client;  in imagis_init_regulators()
293 	ts->supplies[0].supply = "vdd";  in imagis_init_regulators()
294 	ts->supplies[1].supply = "vddio";  in imagis_init_regulators()
296 				       ARRAY_SIZE(ts->supplies),  in imagis_init_regulators()
297 				       ts->supplies);  in imagis_init_regulators()
303 	struct imagis_ts *ts;  in imagis_probe()  local
306 	ts = devm_kzalloc(dev, sizeof(*ts), GFP_KERNEL);  in imagis_probe()
307 	if (!ts)  in imagis_probe()
310 	ts->client = i2c;  in imagis_probe()
312 	ts->tdata = device_get_match_data(dev);  in imagis_probe()
313 	if (!ts->tdata) {  in imagis_probe()
318 	error = imagis_init_regulators(ts);  in imagis_probe()
324 	error = imagis_power_on(ts);  in imagis_probe()
330 	error = devm_add_action_or_reset(dev, imagis_power_off, ts);  in imagis_probe()
336 	error = imagis_i2c_read_reg(ts, ts->tdata->whoami_cmd, &chip_id);  in imagis_probe()
342 	if (chip_id != ts->tdata->whoami_val) {  in imagis_probe()
350 					  "imagis-touchscreen", ts);  in imagis_probe()
357 	error = imagis_init_input_dev(ts);  in imagis_probe()
367 	struct imagis_ts *ts = i2c_get_clientdata(client);  in imagis_suspend()  local
370 	mutex_lock(&ts->input_dev->mutex);  in imagis_suspend()
372 	if (input_device_enabled(ts->input_dev))  in imagis_suspend()
373 		retval = imagis_stop(ts);  in imagis_suspend()
375 	mutex_unlock(&ts->input_dev->mutex);  in imagis_suspend()
383 	struct imagis_ts *ts = i2c_get_clientdata(client);  in imagis_resume()  local
386 	mutex_lock(&ts->input_dev->mutex);  in imagis_resume()
388 	if (input_device_enabled(ts->input_dev))  in imagis_resume()
389 		retval = imagis_start(ts);  in imagis_resume()
391 	mutex_unlock(&ts->input_dev->mutex);  in imagis_resume()