171 static int bu21013_read_block_data(struct bu21013_ts *ts, u8 *buf)  in bu21013_read_block_data()  argument
176 		ret = i2c_smbus_read_i2c_block_data(ts->client,  in bu21013_read_block_data()
186 static int bu21013_do_touch_report(struct bu21013_ts *ts)  in bu21013_do_touch_report()  argument
188 	struct input_dev *input = ts->in_dev;  in bu21013_do_touch_report()
196 	if (bu21013_read_block_data(ts, buf) < 0)  in bu21013_do_touch_report()
213 					       &ts->props, x, y);  in bu21013_do_touch_report()
238 	struct bu21013_ts *ts = device_data;  in bu21013_gpio_irq()  local
243 		error = bu21013_do_touch_report(ts);  in bu21013_gpio_irq()
245 			dev_err(&ts->client->dev, "%s failed\n", __func__);  in bu21013_gpio_irq()
249 		if (unlikely(ts->touch_stopped))  in bu21013_gpio_irq()
252 		keep_polling = ts->int_gpiod ?  in bu21013_gpio_irq()
253 			gpiod_get_value(ts->int_gpiod) : false;  in bu21013_gpio_irq()
261 static int bu21013_init_chip(struct bu21013_ts *ts)  in bu21013_init_chip()  argument
263 	struct i2c_client *client = ts->client;  in bu21013_init_chip()
395 	struct bu21013_ts *ts = _ts;  in bu21013_power_off()  local
397 	regulator_disable(ts->regulator);  in bu21013_power_off()
402 	struct bu21013_ts *ts = _ts;  in bu21013_disable_chip()  local
404 	gpiod_set_value(ts->cs_gpiod, 0);  in bu21013_disable_chip()
409 	struct bu21013_ts *ts;  in bu21013_probe()  local
427 	ts = devm_kzalloc(dev, sizeof(*ts), GFP_KERNEL);  in bu21013_probe()
428 	if (!ts)  in bu21013_probe()
431 	ts->client = client;  in bu21013_probe()
433 	ts->x_flip = device_property_read_bool(dev, "rohm,flip-x");  in bu21013_probe()
434 	ts->y_flip = device_property_read_bool(dev, "rohm,flip-y");  in bu21013_probe()
441 	ts->in_dev = in_dev;  in bu21013_probe()
442 	input_set_drvdata(in_dev, ts);  in bu21013_probe()
454 	touchscreen_parse_properties(in_dev, true, &ts->props);  in bu21013_probe()
457 	if (!ts->props.invert_x &&  in bu21013_probe()
464 	if (!ts->props.invert_y &&  in bu21013_probe()
479 	ts->regulator = devm_regulator_get(dev, "avdd");  in bu21013_probe()
480 	if (IS_ERR(ts->regulator)) {  in bu21013_probe()
482 		return PTR_ERR(ts->regulator);  in bu21013_probe()
485 	error = regulator_enable(ts->regulator);  in bu21013_probe()
491 	error = devm_add_action_or_reset(dev, bu21013_power_off, ts);  in bu21013_probe()
498 	ts->cs_gpiod = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);  in bu21013_probe()
499 	if (IS_ERR(ts->cs_gpiod))  in bu21013_probe()
500 		return dev_err_probe(dev, PTR_ERR(ts->cs_gpiod), "failed to get CS GPIO\n");  in bu21013_probe()
502 	gpiod_set_consumer_name(ts->cs_gpiod, "BU21013 CS");  in bu21013_probe()
504 	error = devm_add_action_or_reset(dev, bu21013_disable_chip, ts);  in bu21013_probe()
511 	ts->int_gpiod = devm_gpiod_get_optional(dev, "touch", GPIOD_IN);  in bu21013_probe()
512 	error = PTR_ERR_OR_ZERO(ts->int_gpiod);  in bu21013_probe()
516 	if (ts->int_gpiod)  in bu21013_probe()
517 		gpiod_set_consumer_name(ts->int_gpiod, "BU21013 INT");  in bu21013_probe()
520 	error = bu21013_init_chip(ts);  in bu21013_probe()
527 					  IRQF_ONESHOT, DRIVER_TP, ts);  in bu21013_probe()
539 	i2c_set_clientdata(client, ts);  in bu21013_probe()
546 	struct bu21013_ts *ts = i2c_get_clientdata(client);  in bu21013_remove()  local
549 	ts->touch_stopped = true;  in bu21013_remove()
556 	struct bu21013_ts *ts = i2c_get_clientdata(client);  in bu21013_suspend()  local
558 	ts->touch_stopped = true;  in bu21013_suspend()
563 		regulator_disable(ts->regulator);  in bu21013_suspend()
571 	struct bu21013_ts *ts = i2c_get_clientdata(client);  in bu21013_resume()  local
575 		error = regulator_enable(ts->regulator);  in bu21013_resume()
582 		error = bu21013_init_chip(ts);  in bu21013_resume()
590 	ts->touch_stopped = false;  in bu21013_resume()