237 	int ret, error;  in elants_i2c_calibrate()  local
258 		error = ret < 0 ? ret : -ETIMEDOUT;  in elants_i2c_calibrate()
261 			error);  in elants_i2c_calibrate()
262 		return error;  in elants_i2c_calibrate()
278 	int error;  in elants_i2c_sw_reset()  local
280 	error = elants_i2c_send(client, soft_rst_cmd,  in elants_i2c_sw_reset()
282 	if (error) {  in elants_i2c_sw_reset()
283 		dev_err(&client->dev, "software reset failed: %d\n", error);  in elants_i2c_sw_reset()
284 		return error;  in elants_i2c_sw_reset()
304 	int error, retry_cnt;  in elants_i2c_query_fw_id()  local
309 		error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_fw_id()
311 		if (!error) {  in elants_i2c_query_fw_id()
318 			error, (int)sizeof(resp), resp);  in elants_i2c_query_fw_id()
330 	int error, retry_cnt;  in elants_i2c_query_fw_version()  local
335 		error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_fw_version()
337 		if (!error) {  in elants_i2c_query_fw_version()
345 			error, (int)sizeof(resp), resp);  in elants_i2c_query_fw_version()
357 	int error, retry_cnt;  in elants_i2c_query_test_version()  local
363 		error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_test_version()
365 		if (!error) {  in elants_i2c_query_test_version()
375 			error, (int)sizeof(resp), resp);  in elants_i2c_query_test_version()
389 	int error;  in elants_i2c_query_bc_version()  local
391 	error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_bc_version()
393 	if (error) {  in elants_i2c_query_bc_version()
396 			error, (int)sizeof(resp), resp);  in elants_i2c_query_bc_version()
397 		return error;  in elants_i2c_query_bc_version()
410 	int error;  in elants_i2c_query_ts_info()  local
427 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info()
431 	if (error) {  in elants_i2c_query_ts_info()
433 			error);  in elants_i2c_query_ts_info()
434 		return error;  in elants_i2c_query_ts_info()
441 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info()
444 	if (error) {  in elants_i2c_query_ts_info()
446 			error);  in elants_i2c_query_ts_info()
447 		return error;  in elants_i2c_query_ts_info()
452 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info()
456 	if (error) {  in elants_i2c_query_ts_info()
458 			error);  in elants_i2c_query_ts_info()
459 		return error;  in elants_i2c_query_ts_info()
464 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info()
468 	if (error) {  in elants_i2c_query_ts_info()
470 			error);  in elants_i2c_query_ts_info()
471 		return error;  in elants_i2c_query_ts_info()
496 	int error;  in elants_i2c_fastboot()  local
498 	error = elants_i2c_send(client, boot_cmd, sizeof(boot_cmd));  in elants_i2c_fastboot()
499 	if (error) {  in elants_i2c_fastboot()
500 		dev_err(&client->dev, "boot failed: %d\n", error);  in elants_i2c_fastboot()
501 		return error;  in elants_i2c_fastboot()
511 	int error, retry_cnt;  in elants_i2c_initialize()  local
517 		error = elants_i2c_sw_reset(client);  in elants_i2c_initialize()
518 		if (error) {  in elants_i2c_initialize()
524 		error = elants_i2c_fastboot(client);  in elants_i2c_initialize()
525 		if (error) {  in elants_i2c_initialize()
534 		error = elants_i2c_read(client, buf, sizeof(buf));  in elants_i2c_initialize()
535 		if (error) {  in elants_i2c_initialize()
537 				"failed to read 'hello' packet: %d\n", error);  in elants_i2c_initialize()
546 			error = -EIO;  in elants_i2c_initialize()
549 			error = -EINVAL;  in elants_i2c_initialize()
556 	if (!error)  in elants_i2c_initialize()
557 		error = elants_i2c_query_fw_id(ts);  in elants_i2c_initialize()
558 	if (!error)  in elants_i2c_initialize()
559 		error = elants_i2c_query_fw_version(ts);  in elants_i2c_initialize()
561 	if (error) {  in elants_i2c_initialize()
582 	int error;  in elants_i2c_fw_write_page()  local
585 		error = elants_i2c_send(client, page, ELAN_FW_PAGESIZE);  in elants_i2c_fw_write_page()
586 		if (error) {  in elants_i2c_fw_write_page()
588 				"IAP Write Page failed: %d\n", error);  in elants_i2c_fw_write_page()
592 		error = elants_i2c_read(client, buf, 2);  in elants_i2c_fw_write_page()
593 		if (error) {  in elants_i2c_fw_write_page()
595 				"IAP Ack read failed: %d\n", error);  in elants_i2c_fw_write_page()
596 			return error;  in elants_i2c_fw_write_page()
602 		error = -EIO;  in elants_i2c_fw_write_page()
608 	return error;  in elants_i2c_fw_write_page()
622 	int error;  in elants_i2c_do_update_firmware()  local
627 		error = elants_i2c_send(client, enter_iap2, sizeof(enter_iap2));  in elants_i2c_do_update_firmware()
632 		error = elants_i2c_send(client, close_idle, sizeof(close_idle));  in elants_i2c_do_update_firmware()
633 		if (error)  in elants_i2c_do_update_firmware()
634 			dev_err(&client->dev, "Failed close idle: %d\n", error);  in elants_i2c_do_update_firmware()
638 		error = elants_i2c_send(client, enter_iap, sizeof(enter_iap));  in elants_i2c_do_update_firmware()
641 	if (error) {  in elants_i2c_do_update_firmware()
642 		dev_err(&client->dev, "failed to enter IAP mode: %d\n", error);  in elants_i2c_do_update_firmware()
643 		return error;  in elants_i2c_do_update_firmware()
649 	error = elants_i2c_read(client, buf, 4);  in elants_i2c_do_update_firmware()
650 	if (error) {  in elants_i2c_do_update_firmware()
653 			error);  in elants_i2c_do_update_firmware()
654 		return error;  in elants_i2c_do_update_firmware()
667 	error = elants_i2c_send(client, &send_id, 1);  in elants_i2c_do_update_firmware()
668 	if (error) {  in elants_i2c_do_update_firmware()
670 			error);  in elants_i2c_do_update_firmware()
671 		return error;  in elants_i2c_do_update_firmware()
675 	error = elants_i2c_send(client, fw->data, ELAN_FW_PAGESIZE);  in elants_i2c_do_update_firmware()
676 	if (error) {  in elants_i2c_do_update_firmware()
678 			error);  in elants_i2c_do_update_firmware()
679 		return error;  in elants_i2c_do_update_firmware()
682 	error = elants_i2c_read(client, buf, 2);  in elants_i2c_do_update_firmware()
683 	if (error) {  in elants_i2c_do_update_firmware()
686 			error);  in elants_i2c_do_update_firmware()
687 		return error;  in elants_i2c_do_update_firmware()
694 		error = elants_i2c_fw_write_page(client,  in elants_i2c_do_update_firmware()
696 		if (error) {  in elants_i2c_do_update_firmware()
699 				page, error);  in elants_i2c_do_update_firmware()
700 			return error;  in elants_i2c_do_update_firmware()
716 	int error;  in elants_i2c_fw_update()  local
723 	error = request_firmware(&fw, fw_name, &client->dev);  in elants_i2c_fw_update()
725 	if (error) {  in elants_i2c_fw_update()
727 			error);  in elants_i2c_fw_update()
728 		return error;  in elants_i2c_fw_update()
734 		error = -EINVAL;  in elants_i2c_fw_update()
740 	error = elants_i2c_do_update_firmware(client, fw,  in elants_i2c_fw_update()
742 	if (error) {  in elants_i2c_fw_update()
743 		dev_err(&client->dev, "firmware update failed: %d\n", error);  in elants_i2c_fw_update()
748 	error = elants_i2c_initialize(ts);  in elants_i2c_fw_update()
749 	if (error) {  in elants_i2c_fw_update()
752 			error);  in elants_i2c_fw_update()
764 	if (!error)  in elants_i2c_fw_update()
768 	return error;  in elants_i2c_fw_update()
951 	int error;  in calibrate_store()  local
953 	error = mutex_lock_interruptible(&ts->sysfs_mutex);  in calibrate_store()
954 	if (error)  in calibrate_store()
955 		return error;  in calibrate_store()
957 	error = elants_i2c_calibrate(ts);  in calibrate_store()
960 	return error ?: count;  in calibrate_store()
969 	int error;  in write_update_fw()  local
971 	error = mutex_lock_interruptible(&ts->sysfs_mutex);  in write_update_fw()
972 	if (error)  in write_update_fw()
973 		return error;  in write_update_fw()
975 	error = elants_i2c_fw_update(ts);  in write_update_fw()
976 	dev_dbg(dev, "firmware update result: %d\n", error);  in write_update_fw()
979 	return error ?: count;  in write_update_fw()
1073 	int error;  in elants_i2c_power_on()  local
1084 	error = regulator_enable(ts->vcc33);  in elants_i2c_power_on()
1085 	if (error) {  in elants_i2c_power_on()
1088 			error);  in elants_i2c_power_on()
1092 	error = regulator_enable(ts->vccio);  in elants_i2c_power_on()
1093 	if (error) {  in elants_i2c_power_on()
1096 			error);  in elants_i2c_power_on()
1109 	if (error)  in elants_i2c_power_on()
1110 		return error;  in elants_i2c_power_on()
1138 	int error;  in elants_i2c_probe()  local
1158 		error = PTR_ERR(ts->vcc33);  in elants_i2c_probe()
1159 		if (error != -EPROBE_DEFER)  in elants_i2c_probe()
1162 				error);  in elants_i2c_probe()
1163 		return error;  in elants_i2c_probe()
1168 		error = PTR_ERR(ts->vccio);  in elants_i2c_probe()
1169 		if (error != -EPROBE_DEFER)  in elants_i2c_probe()
1172 				error);  in elants_i2c_probe()
1173 		return error;  in elants_i2c_probe()
1178 		error = PTR_ERR(ts->reset_gpio);  in elants_i2c_probe()
1180 		if (error == -EPROBE_DEFER)  in elants_i2c_probe()
1181 			return error;  in elants_i2c_probe()
1183 		if (error != -ENOENT && error != -ENOSYS) {  in elants_i2c_probe()
1186 				error);  in elants_i2c_probe()
1187 			return error;  in elants_i2c_probe()
1193 	error = elants_i2c_power_on(ts);  in elants_i2c_probe()
1194 	if (error)  in elants_i2c_probe()
1195 		return error;  in elants_i2c_probe()
1197 	error = devm_add_action(&client->dev, elants_i2c_power_off, ts);  in elants_i2c_probe()
1198 	if (error) {  in elants_i2c_probe()
1200 			"failed to install power off action: %d\n", error);  in elants_i2c_probe()
1202 		return error;  in elants_i2c_probe()
1212 	error = elants_i2c_initialize(ts);  in elants_i2c_probe()
1213 	if (error) {  in elants_i2c_probe()
1214 		dev_err(&client->dev, "failed to initialize: %d\n", error);  in elants_i2c_probe()
1215 		return error;  in elants_i2c_probe()
1239 	error = input_mt_init_slots(ts->input, MAX_CONTACT_NUM,  in elants_i2c_probe()
1241 	if (error) {  in elants_i2c_probe()
1243 			"failed to initialize MT slots: %d\n", error);  in elants_i2c_probe()
1244 		return error;  in elants_i2c_probe()
1256 	error = input_register_device(ts->input);  in elants_i2c_probe()
1257 	if (error) {  in elants_i2c_probe()
1259 			"unable to register input device: %d\n", error);  in elants_i2c_probe()
1260 		return error;  in elants_i2c_probe()
1269 	error = devm_request_threaded_irq(&client->dev, client->irq,  in elants_i2c_probe()
1273 	if (error) {  in elants_i2c_probe()
1275 		return error;  in elants_i2c_probe()
1285 	error = sysfs_create_group(&client->dev.kobj, &elants_attribute_group);  in elants_i2c_probe()
1286 	if (error) {  in elants_i2c_probe()
1288 			error);  in elants_i2c_probe()
1289 		return error;  in elants_i2c_probe()
1292 	error = devm_add_action(&client->dev,  in elants_i2c_probe()
1294 	if (error) {  in elants_i2c_probe()
1298 			error);  in elants_i2c_probe()
1299 		return error;  in elants_i2c_probe()
1311 	int error;  in elants_i2c_suspend()  local
1327 			error = elants_i2c_send(client, set_sleep_cmd,  in elants_i2c_suspend()
1329 			if (!error)  in elants_i2c_suspend()
1333 				"suspend command failed: %d\n", error);  in elants_i2c_suspend()
1348 	int error;  in elants_i2c_resume()  local
1356 			error = elants_i2c_send(client, set_active_cmd,  in elants_i2c_resume()
1358 			if (!error)  in elants_i2c_resume()
1362 				"resume command failed: %d\n", error);  in elants_i2c_resume()