240 	int error;  in bu21013_gpio_irq()  local
243 		error = bu21013_do_touch_report(ts);  in bu21013_gpio_irq()
244 		if (error) {  in bu21013_gpio_irq()
264 	int error;  in bu21013_init_chip()  local
266 	error = i2c_smbus_write_byte_data(client, BU21013_RESET_REG,  in bu21013_init_chip()
268 	if (error) {  in bu21013_init_chip()
270 		return error;  in bu21013_init_chip()
274 	error = i2c_smbus_write_byte_data(client, BU21013_SENSOR_0_7_REG,  in bu21013_init_chip()
276 	if (error) {  in bu21013_init_chip()
278 		return error;  in bu21013_init_chip()
281 	error = i2c_smbus_write_byte_data(client, BU21013_SENSOR_8_15_REG,  in bu21013_init_chip()
283 	if (error) {  in bu21013_init_chip()
285 		return error;  in bu21013_init_chip()
288 	error = i2c_smbus_write_byte_data(client, BU21013_SENSOR_16_23_REG,  in bu21013_init_chip()
290 	if (error) {  in bu21013_init_chip()
292 		return error;  in bu21013_init_chip()
295 	error = i2c_smbus_write_byte_data(client, BU21013_POS_MODE1_REG,  in bu21013_init_chip()
298 	if (error) {  in bu21013_init_chip()
300 		return error;  in bu21013_init_chip()
303 	error = i2c_smbus_write_byte_data(client, BU21013_POS_MODE2_REG,  in bu21013_init_chip()
309 	if (error) {  in bu21013_init_chip()
311 		return error;  in bu21013_init_chip()
314 	error = i2c_smbus_write_byte_data(client, BU21013_CLK_MODE_REG,  in bu21013_init_chip()
317 	if (error) {  in bu21013_init_chip()
319 		return error;  in bu21013_init_chip()
322 	error = i2c_smbus_write_byte_data(client, BU21013_IDLE_REG,  in bu21013_init_chip()
325 	if (error) {  in bu21013_init_chip()
327 		return error;  in bu21013_init_chip()
330 	error = i2c_smbus_write_byte_data(client, BU21013_INT_MODE_REG,  in bu21013_init_chip()
332 	if (error) {  in bu21013_init_chip()
334 		return error;  in bu21013_init_chip()
337 	error = i2c_smbus_write_byte_data(client, BU21013_FILTER_REG,  in bu21013_init_chip()
340 	if (error) {  in bu21013_init_chip()
342 		return error;  in bu21013_init_chip()
345 	error = i2c_smbus_write_byte_data(client, BU21013_TH_ON_REG,  in bu21013_init_chip()
347 	if (error) {  in bu21013_init_chip()
349 		return error;  in bu21013_init_chip()
352 	error = i2c_smbus_write_byte_data(client, BU21013_TH_OFF_REG,  in bu21013_init_chip()
354 	if (error) {  in bu21013_init_chip()
356 		return error;  in bu21013_init_chip()
359 	error = i2c_smbus_write_byte_data(client, BU21013_GAIN_REG,  in bu21013_init_chip()
361 	if (error) {  in bu21013_init_chip()
363 		return error;  in bu21013_init_chip()
366 	error = i2c_smbus_write_byte_data(client, BU21013_OFFSET_MODE_REG,  in bu21013_init_chip()
368 	if (error) {  in bu21013_init_chip()
370 		return error;  in bu21013_init_chip()
373 	error = i2c_smbus_write_byte_data(client, BU21013_XY_EDGE_REG,  in bu21013_init_chip()
378 	if (error) {  in bu21013_init_chip()
380 		return error;  in bu21013_init_chip()
383 	error = i2c_smbus_write_byte_data(client, BU21013_DONE_REG,  in bu21013_init_chip()
385 	if (error) {  in bu21013_init_chip()
387 		return error;  in bu21013_init_chip()
414 	int error;  in bu21013_probe()  local
471 	error = input_mt_init_slots(in_dev, MAX_FINGERS,  in bu21013_probe()
474 	if (error) {  in bu21013_probe()
476 		return error;  in bu21013_probe()
485 	error = regulator_enable(ts->regulator);  in bu21013_probe()
486 	if (error) {  in bu21013_probe()
488 		return error;  in bu21013_probe()
491 	error = devm_add_action_or_reset(&client->dev, bu21013_power_off, ts);  in bu21013_probe()
492 	if (error) {  in bu21013_probe()
494 		return error;  in bu21013_probe()
499 	error = PTR_ERR_OR_ZERO(ts->cs_gpiod);  in bu21013_probe()
500 	if (error) {  in bu21013_probe()
501 		if (error != -EPROBE_DEFER)  in bu21013_probe()
503 		return error;  in bu21013_probe()
507 	error = devm_add_action_or_reset(&client->dev,  in bu21013_probe()
509 	if (error) {  in bu21013_probe()
512 		return error;  in bu21013_probe()
518 	error = PTR_ERR_OR_ZERO(ts->int_gpiod);  in bu21013_probe()
519 	if (error) {  in bu21013_probe()
520 		if (error != -EPROBE_DEFER)  in bu21013_probe()
522 		return error;  in bu21013_probe()
529 	error = bu21013_init_chip(ts);  in bu21013_probe()
530 	if (error) {  in bu21013_probe()
531 		dev_err(&client->dev, "error in bu21013 config\n");  in bu21013_probe()
532 		return error;  in bu21013_probe()
535 	error = devm_request_threaded_irq(&client->dev, client->irq,  in bu21013_probe()
538 	if (error) {  in bu21013_probe()
541 		return error;  in bu21013_probe()
544 	error = input_register_device(in_dev);  in bu21013_probe()
545 	if (error) {  in bu21013_probe()
547 		return error;  in bu21013_probe()
585 	int error;  in bu21013_resume()  local
588 		error = regulator_enable(ts->regulator);  in bu21013_resume()
589 		if (error) {  in bu21013_resume()
592 			return error;  in bu21013_resume()
595 		error = bu21013_init_chip(ts);  in bu21013_resume()
596 		if (error) {  in bu21013_resume()
599 			return error;  in bu21013_resume()