233 	int ret, error;  in elants_i2c_calibrate()  local
254 		error = ret < 0 ? ret : -ETIMEDOUT;  in elants_i2c_calibrate()
257 			error);  in elants_i2c_calibrate()
258 		return error;  in elants_i2c_calibrate()
274 	int error;  in elants_i2c_sw_reset()  local
276 	error = elants_i2c_send(client, soft_rst_cmd,  in elants_i2c_sw_reset()
278 	if (error) {  in elants_i2c_sw_reset()
279 		dev_err(&client->dev, "software reset failed: %d\n", error);  in elants_i2c_sw_reset()
280 		return error;  in elants_i2c_sw_reset()
300 	int error, retry_cnt;  in elants_i2c_query_hw_version()  local
305 		error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_hw_version()
307 		if (!error) {  in elants_i2c_query_hw_version()
314 			error, (int)sizeof(resp), resp);  in elants_i2c_query_hw_version()
317 	if (error) {  in elants_i2c_query_hw_version()
319 			"Failed to read fw id: %d\n", error);  in elants_i2c_query_hw_version()
320 		return error;  in elants_i2c_query_hw_version()
331 	int error, retry_cnt;  in elants_i2c_query_fw_version()  local
336 		error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_fw_version()
338 		if (!error) {  in elants_i2c_query_fw_version()
346 			error, (int)sizeof(resp), resp);  in elants_i2c_query_fw_version()
358 	int error, retry_cnt;  in elants_i2c_query_test_version()  local
364 		error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_test_version()
366 		if (!error) {  in elants_i2c_query_test_version()
376 			error, (int)sizeof(resp), resp);  in elants_i2c_query_test_version()
390 	int error;  in elants_i2c_query_bc_version()  local
392 	error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_bc_version()
394 	if (error) {  in elants_i2c_query_bc_version()
397 			error, (int)sizeof(resp), resp);  in elants_i2c_query_bc_version()
398 		return error;  in elants_i2c_query_bc_version()
411 	int error;  in elants_i2c_query_ts_info()  local
428 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info()
432 	if (error) {  in elants_i2c_query_ts_info()
434 			error);  in elants_i2c_query_ts_info()
435 		return error;  in elants_i2c_query_ts_info()
442 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info()
445 	if (error) {  in elants_i2c_query_ts_info()
447 			error);  in elants_i2c_query_ts_info()
448 		return error;  in elants_i2c_query_ts_info()
453 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info()
457 	if (error) {  in elants_i2c_query_ts_info()
459 			error);  in elants_i2c_query_ts_info()
460 		return error;  in elants_i2c_query_ts_info()
465 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info()
469 	if (error) {  in elants_i2c_query_ts_info()
471 			error);  in elants_i2c_query_ts_info()
472 		return error;  in elants_i2c_query_ts_info()
497 	int error;  in elants_i2c_fastboot()  local
499 	error = elants_i2c_send(client, boot_cmd, sizeof(boot_cmd));  in elants_i2c_fastboot()
500 	if (error) {  in elants_i2c_fastboot()
501 		dev_err(&client->dev, "boot failed: %d\n", error);  in elants_i2c_fastboot()
502 		return error;  in elants_i2c_fastboot()
512 	int error, error2, retry_cnt;  in elants_i2c_initialize()  local
518 		error = elants_i2c_sw_reset(client);  in elants_i2c_initialize()
519 		if (error) {  in elants_i2c_initialize()
525 		error = elants_i2c_fastboot(client);  in elants_i2c_initialize()
526 		if (error) {  in elants_i2c_initialize()
535 		error = elants_i2c_read(client, buf, sizeof(buf));  in elants_i2c_initialize()
536 		if (error) {  in elants_i2c_initialize()
538 				"failed to read 'hello' packet: %d\n", error);  in elants_i2c_initialize()
547 			error = -EIO;  in elants_i2c_initialize()
550 			error = -EINVAL;  in elants_i2c_initialize()
559 	if (!error)  in elants_i2c_initialize()
560 		error = error2;  in elants_i2c_initialize()
562 	if (!error)  in elants_i2c_initialize()
563 		error = elants_i2c_query_fw_version(ts);  in elants_i2c_initialize()
564 	if (!error)  in elants_i2c_initialize()
565 		error = elants_i2c_query_test_version(ts);  in elants_i2c_initialize()
566 	if (!error)  in elants_i2c_initialize()
567 		error = elants_i2c_query_bc_version(ts);  in elants_i2c_initialize()
568 	if (!error)  in elants_i2c_initialize()
569 		error = elants_i2c_query_ts_info(ts);  in elants_i2c_initialize()
571 	if (error)  in elants_i2c_initialize()
587 	int error;  in elants_i2c_fw_write_page()  local
590 		error = elants_i2c_send(client, page, ELAN_FW_PAGESIZE);  in elants_i2c_fw_write_page()
591 		if (error) {  in elants_i2c_fw_write_page()
593 				"IAP Write Page failed: %d\n", error);  in elants_i2c_fw_write_page()
597 		error = elants_i2c_read(client, buf, 2);  in elants_i2c_fw_write_page()
598 		if (error) {  in elants_i2c_fw_write_page()
600 				"IAP Ack read failed: %d\n", error);  in elants_i2c_fw_write_page()
601 			return error;  in elants_i2c_fw_write_page()
607 		error = -EIO;  in elants_i2c_fw_write_page()
613 	return error;  in elants_i2c_fw_write_page()
627 	int error;  in elants_i2c_do_update_firmware()  local
632 		error = elants_i2c_send(client, enter_iap2, sizeof(enter_iap2));  in elants_i2c_do_update_firmware()
637 		error = elants_i2c_send(client, close_idle, sizeof(close_idle));  in elants_i2c_do_update_firmware()
638 		if (error)  in elants_i2c_do_update_firmware()
639 			dev_err(&client->dev, "Failed close idle: %d\n", error);  in elants_i2c_do_update_firmware()
643 		error = elants_i2c_send(client, enter_iap, sizeof(enter_iap));  in elants_i2c_do_update_firmware()
646 	if (error) {  in elants_i2c_do_update_firmware()
647 		dev_err(&client->dev, "failed to enter IAP mode: %d\n", error);  in elants_i2c_do_update_firmware()
648 		return error;  in elants_i2c_do_update_firmware()
654 	error = elants_i2c_read(client, buf, 4);  in elants_i2c_do_update_firmware()
655 	if (error) {  in elants_i2c_do_update_firmware()
658 			error);  in elants_i2c_do_update_firmware()
659 		return error;  in elants_i2c_do_update_firmware()
672 	error = elants_i2c_send(client, &send_id, 1);  in elants_i2c_do_update_firmware()
673 	if (error) {  in elants_i2c_do_update_firmware()
675 			error);  in elants_i2c_do_update_firmware()
676 		return error;  in elants_i2c_do_update_firmware()
680 	error = elants_i2c_send(client, fw->data, ELAN_FW_PAGESIZE);  in elants_i2c_do_update_firmware()
681 	if (error) {  in elants_i2c_do_update_firmware()
683 			error);  in elants_i2c_do_update_firmware()
684 		return error;  in elants_i2c_do_update_firmware()
687 	error = elants_i2c_read(client, buf, 2);  in elants_i2c_do_update_firmware()
688 	if (error) {  in elants_i2c_do_update_firmware()
691 			error);  in elants_i2c_do_update_firmware()
692 		return error;  in elants_i2c_do_update_firmware()
699 		error = elants_i2c_fw_write_page(client,  in elants_i2c_do_update_firmware()
701 		if (error) {  in elants_i2c_do_update_firmware()
704 				page, error);  in elants_i2c_do_update_firmware()
705 			return error;  in elants_i2c_do_update_firmware()
721 	int error;  in elants_i2c_fw_update()  local
728 	error = request_firmware(&fw, fw_name, &client->dev);  in elants_i2c_fw_update()
730 	if (error) {  in elants_i2c_fw_update()
732 			error);  in elants_i2c_fw_update()
733 		return error;  in elants_i2c_fw_update()
739 		error = -EINVAL;  in elants_i2c_fw_update()
745 	error = elants_i2c_do_update_firmware(client, fw,  in elants_i2c_fw_update()
747 	if (error) {  in elants_i2c_fw_update()
748 		dev_err(&client->dev, "firmware update failed: %d\n", error);  in elants_i2c_fw_update()
753 	error = elants_i2c_initialize(ts);  in elants_i2c_fw_update()
754 	if (error) {  in elants_i2c_fw_update()
757 			error);  in elants_i2c_fw_update()
769 	if (!error)  in elants_i2c_fw_update()
773 	return error;  in elants_i2c_fw_update()
956 	int error;  in calibrate_store()  local
958 	error = mutex_lock_interruptible(&ts->sysfs_mutex);  in calibrate_store()
959 	if (error)  in calibrate_store()
960 		return error;  in calibrate_store()
962 	error = elants_i2c_calibrate(ts);  in calibrate_store()
965 	return error ?: count;  in calibrate_store()
974 	int error;  in write_update_fw()  local
976 	error = mutex_lock_interruptible(&ts->sysfs_mutex);  in write_update_fw()
977 	if (error)  in write_update_fw()
978 		return error;  in write_update_fw()
980 	error = elants_i2c_fw_update(ts);  in write_update_fw()
981 	dev_dbg(dev, "firmware update result: %d\n", error);  in write_update_fw()
984 	return error ?: count;  in write_update_fw()
1071 	int error;  in elants_i2c_power_on()  local
1082 	error = regulator_enable(ts->vcc33);  in elants_i2c_power_on()
1083 	if (error) {  in elants_i2c_power_on()
1086 			error);  in elants_i2c_power_on()
1090 	error = regulator_enable(ts->vccio);  in elants_i2c_power_on()
1091 	if (error) {  in elants_i2c_power_on()
1094 			error);  in elants_i2c_power_on()
1107 	if (error)  in elants_i2c_power_on()
1108 		return error;  in elants_i2c_power_on()
1136 	int error;  in elants_i2c_probe()  local
1156 		error = PTR_ERR(ts->vcc33);  in elants_i2c_probe()
1157 		if (error != -EPROBE_DEFER)  in elants_i2c_probe()
1160 				error);  in elants_i2c_probe()
1161 		return error;  in elants_i2c_probe()
1166 		error = PTR_ERR(ts->vccio);  in elants_i2c_probe()
1167 		if (error != -EPROBE_DEFER)  in elants_i2c_probe()
1170 				error);  in elants_i2c_probe()
1171 		return error;  in elants_i2c_probe()
1176 		error = PTR_ERR(ts->reset_gpio);  in elants_i2c_probe()
1178 		if (error == -EPROBE_DEFER)  in elants_i2c_probe()
1179 			return error;  in elants_i2c_probe()
1181 		if (error != -ENOENT && error != -ENOSYS) {  in elants_i2c_probe()
1184 				error);  in elants_i2c_probe()
1185 			return error;  in elants_i2c_probe()
1191 	error = elants_i2c_power_on(ts);  in elants_i2c_probe()
1192 	if (error)  in elants_i2c_probe()
1193 		return error;  in elants_i2c_probe()
1195 	error = devm_add_action(&client->dev, elants_i2c_power_off, ts);  in elants_i2c_probe()
1196 	if (error) {  in elants_i2c_probe()
1198 			"failed to install power off action: %d\n", error);  in elants_i2c_probe()
1200 		return error;  in elants_i2c_probe()
1210 	error = elants_i2c_initialize(ts);  in elants_i2c_probe()
1211 	if (error) {  in elants_i2c_probe()
1212 		dev_err(&client->dev, "failed to initialize: %d\n", error);  in elants_i2c_probe()
1213 		return error;  in elants_i2c_probe()
1237 	error = input_mt_init_slots(ts->input, MAX_CONTACT_NUM,  in elants_i2c_probe()
1239 	if (error) {  in elants_i2c_probe()
1241 			"failed to initialize MT slots: %d\n", error);  in elants_i2c_probe()
1242 		return error;  in elants_i2c_probe()
1252 	error = input_register_device(ts->input);  in elants_i2c_probe()
1253 	if (error) {  in elants_i2c_probe()
1255 			"unable to register input device: %d\n", error);  in elants_i2c_probe()
1256 		return error;  in elants_i2c_probe()
1268 	error = devm_request_threaded_irq(&client->dev, client->irq,  in elants_i2c_probe()
1272 	if (error) {  in elants_i2c_probe()
1274 		return error;  in elants_i2c_probe()
1284 	error = devm_device_add_group(&client->dev, &elants_attribute_group);  in elants_i2c_probe()
1285 	if (error) {  in elants_i2c_probe()
1287 			error);  in elants_i2c_probe()
1288 		return error;  in elants_i2c_probe()
1300 	int error;  in elants_i2c_suspend()  local
1316 			error = elants_i2c_send(client, set_sleep_cmd,  in elants_i2c_suspend()
1318 			if (!error)  in elants_i2c_suspend()
1322 				"suspend command failed: %d\n", error);  in elants_i2c_suspend()
1337 	int error;  in elants_i2c_resume()  local
1345 			error = elants_i2c_send(client, set_active_cmd,  in elants_i2c_resume()
1347 			if (!error)  in elants_i2c_resume()
1351 				"resume command failed: %d\n", error);  in elants_i2c_resume()