227 	int ret, error;  in elants_i2c_calibrate()  local
248 		error = ret < 0 ? ret : -ETIMEDOUT;  in elants_i2c_calibrate()
251 			error);  in elants_i2c_calibrate()
252 		return error;  in elants_i2c_calibrate()
268 	int error;  in elants_i2c_sw_reset()  local
270 	error = elants_i2c_send(client, soft_rst_cmd,  in elants_i2c_sw_reset()
272 	if (error) {  in elants_i2c_sw_reset()
273 		dev_err(&client->dev, "software reset failed: %d\n", error);  in elants_i2c_sw_reset()
274 		return error;  in elants_i2c_sw_reset()
294 	int error, retry_cnt;  in elants_i2c_query_fw_id()  local
299 		error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_fw_id()
301 		if (!error) {  in elants_i2c_query_fw_id()
308 			error, (int)sizeof(resp), resp);  in elants_i2c_query_fw_id()
320 	int error, retry_cnt;  in elants_i2c_query_fw_version()  local
325 		error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_fw_version()
327 		if (!error) {  in elants_i2c_query_fw_version()
335 			error, (int)sizeof(resp), resp);  in elants_i2c_query_fw_version()
347 	int error, retry_cnt;  in elants_i2c_query_test_version()  local
353 		error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_test_version()
355 		if (!error) {  in elants_i2c_query_test_version()
365 			error, (int)sizeof(resp), resp);  in elants_i2c_query_test_version()
379 	int error;  in elants_i2c_query_bc_version()  local
381 	error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_bc_version()
383 	if (error) {  in elants_i2c_query_bc_version()
386 			error, (int)sizeof(resp), resp);  in elants_i2c_query_bc_version()
387 		return error;  in elants_i2c_query_bc_version()
400 	int error;  in elants_i2c_query_ts_info()  local
417 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info()
421 	if (error) {  in elants_i2c_query_ts_info()
423 			error);  in elants_i2c_query_ts_info()
424 		return error;  in elants_i2c_query_ts_info()
431 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info()
434 	if (error) {  in elants_i2c_query_ts_info()
436 			error);  in elants_i2c_query_ts_info()
437 		return error;  in elants_i2c_query_ts_info()
442 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info()
446 	if (error) {  in elants_i2c_query_ts_info()
448 			error);  in elants_i2c_query_ts_info()
449 		return error;  in elants_i2c_query_ts_info()
454 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info()
458 	if (error) {  in elants_i2c_query_ts_info()
460 			error);  in elants_i2c_query_ts_info()
461 		return error;  in elants_i2c_query_ts_info()
486 	int error;  in elants_i2c_fastboot()  local
488 	error = elants_i2c_send(client, boot_cmd, sizeof(boot_cmd));  in elants_i2c_fastboot()
489 	if (error) {  in elants_i2c_fastboot()
490 		dev_err(&client->dev, "boot failed: %d\n", error);  in elants_i2c_fastboot()
491 		return error;  in elants_i2c_fastboot()
501 	int error, retry_cnt;  in elants_i2c_initialize()  local
507 		error = elants_i2c_sw_reset(client);  in elants_i2c_initialize()
508 		if (error) {  in elants_i2c_initialize()
514 		error = elants_i2c_fastboot(client);  in elants_i2c_initialize()
515 		if (error) {  in elants_i2c_initialize()
524 		error = elants_i2c_read(client, buf, sizeof(buf));  in elants_i2c_initialize()
525 		if (error) {  in elants_i2c_initialize()
527 				"failed to read 'hello' packet: %d\n", error);  in elants_i2c_initialize()
536 			error = -EIO;  in elants_i2c_initialize()
539 			error = -EINVAL;  in elants_i2c_initialize()
546 	if (!error)  in elants_i2c_initialize()
547 		error = elants_i2c_query_fw_id(ts);  in elants_i2c_initialize()
548 	if (!error)  in elants_i2c_initialize()
549 		error = elants_i2c_query_fw_version(ts);  in elants_i2c_initialize()
551 	if (error) {  in elants_i2c_initialize()
572 	int error;  in elants_i2c_fw_write_page()  local
575 		error = elants_i2c_send(client, page, ELAN_FW_PAGESIZE);  in elants_i2c_fw_write_page()
576 		if (error) {  in elants_i2c_fw_write_page()
578 				"IAP Write Page failed: %d\n", error);  in elants_i2c_fw_write_page()
582 		error = elants_i2c_read(client, buf, 2);  in elants_i2c_fw_write_page()
583 		if (error) {  in elants_i2c_fw_write_page()
585 				"IAP Ack read failed: %d\n", error);  in elants_i2c_fw_write_page()
586 			return error;  in elants_i2c_fw_write_page()
592 		error = -EIO;  in elants_i2c_fw_write_page()
598 	return error;  in elants_i2c_fw_write_page()
611 	int error;  in elants_i2c_do_update_firmware()  local
616 		error = elants_i2c_send(client, enter_iap2, sizeof(enter_iap2));  in elants_i2c_do_update_firmware()
622 		error = elants_i2c_send(client, enter_iap, sizeof(enter_iap));  in elants_i2c_do_update_firmware()
625 	if (error) {  in elants_i2c_do_update_firmware()
626 		dev_err(&client->dev, "failed to enter IAP mode: %d\n", error);  in elants_i2c_do_update_firmware()
627 		return error;  in elants_i2c_do_update_firmware()
633 	error = elants_i2c_read(client, buf, 4);  in elants_i2c_do_update_firmware()
634 	if (error) {  in elants_i2c_do_update_firmware()
637 			error);  in elants_i2c_do_update_firmware()
638 		return error;  in elants_i2c_do_update_firmware()
651 	error = elants_i2c_send(client, &send_id, 1);  in elants_i2c_do_update_firmware()
652 	if (error) {  in elants_i2c_do_update_firmware()
654 			error);  in elants_i2c_do_update_firmware()
655 		return error;  in elants_i2c_do_update_firmware()
659 	error = elants_i2c_send(client, fw->data, ELAN_FW_PAGESIZE);  in elants_i2c_do_update_firmware()
660 	if (error) {  in elants_i2c_do_update_firmware()
662 			error);  in elants_i2c_do_update_firmware()
663 		return error;  in elants_i2c_do_update_firmware()
666 	error = elants_i2c_read(client, buf, 2);  in elants_i2c_do_update_firmware()
667 	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()
678 		error = elants_i2c_fw_write_page(client,  in elants_i2c_do_update_firmware()
680 		if (error) {  in elants_i2c_do_update_firmware()
683 				page, error);  in elants_i2c_do_update_firmware()
684 			return error;  in elants_i2c_do_update_firmware()
700 	int error;  in elants_i2c_fw_update()  local
707 	error = request_firmware(&fw, fw_name, &client->dev);  in elants_i2c_fw_update()
709 	if (error) {  in elants_i2c_fw_update()
711 			error);  in elants_i2c_fw_update()
712 		return error;  in elants_i2c_fw_update()
718 		error = -EINVAL;  in elants_i2c_fw_update()
724 	error = elants_i2c_do_update_firmware(client, fw,  in elants_i2c_fw_update()
726 	if (error) {  in elants_i2c_fw_update()
727 		dev_err(&client->dev, "firmware update failed: %d\n", error);  in elants_i2c_fw_update()
732 	error = elants_i2c_initialize(ts);  in elants_i2c_fw_update()
733 	if (error) {  in elants_i2c_fw_update()
736 			error);  in elants_i2c_fw_update()
748 	if (!error)  in elants_i2c_fw_update()
752 	return error;  in elants_i2c_fw_update()
935 	int error;  in calibrate_store()  local
937 	error = mutex_lock_interruptible(&ts->sysfs_mutex);  in calibrate_store()
938 	if (error)  in calibrate_store()
939 		return error;  in calibrate_store()
941 	error = elants_i2c_calibrate(ts);  in calibrate_store()
944 	return error ?: count;  in calibrate_store()
953 	int error;  in write_update_fw()  local
955 	error = mutex_lock_interruptible(&ts->sysfs_mutex);  in write_update_fw()
956 	if (error)  in write_update_fw()
957 		return error;  in write_update_fw()
959 	error = elants_i2c_fw_update(ts);  in write_update_fw()
960 	dev_dbg(dev, "firmware update result: %d\n", error);  in write_update_fw()
963 	return error ?: count;  in write_update_fw()
1061 	int error;  in elants_i2c_probe()  local
1086 	error = elants_i2c_initialize(ts);  in elants_i2c_probe()
1087 	if (error) {  in elants_i2c_probe()
1088 		dev_err(&client->dev, "failed to initialize: %d\n", error);  in elants_i2c_probe()
1089 		return error;  in elants_i2c_probe()
1113 	error = input_mt_init_slots(ts->input, MAX_CONTACT_NUM,  in elants_i2c_probe()
1115 	if (error) {  in elants_i2c_probe()
1117 			"failed to initialize MT slots: %d\n", error);  in elants_i2c_probe()
1118 		return error;  in elants_i2c_probe()
1130 	error = input_register_device(ts->input);  in elants_i2c_probe()
1131 	if (error) {  in elants_i2c_probe()
1133 			"unable to register input device: %d\n", error);  in elants_i2c_probe()
1134 		return error;  in elants_i2c_probe()
1143 	error = devm_request_threaded_irq(&client->dev, client->irq,  in elants_i2c_probe()
1147 	if (error) {  in elants_i2c_probe()
1149 		return error;  in elants_i2c_probe()
1159 	error = sysfs_create_group(&client->dev.kobj, &elants_attribute_group);  in elants_i2c_probe()
1160 	if (error) {  in elants_i2c_probe()
1162 			error);  in elants_i2c_probe()
1163 		return error;  in elants_i2c_probe()
1166 	error = devm_add_action(&client->dev,  in elants_i2c_probe()
1168 	if (error) {  in elants_i2c_probe()
1172 			error);  in elants_i2c_probe()
1173 		return error;  in elants_i2c_probe()
1185 	int error;  in elants_i2c_suspend()  local
1194 		error = elants_i2c_send(client, set_sleep_cmd,  in elants_i2c_suspend()
1196 		if (!error)  in elants_i2c_suspend()
1199 		dev_err(&client->dev, "suspend command failed: %d\n", error);  in elants_i2c_suspend()
1214 	int error;  in elants_i2c_resume()  local
1220 		error = elants_i2c_send(client, set_active_cmd,  in elants_i2c_resume()
1222 		if (!error)  in elants_i2c_resume()
1225 		dev_err(&client->dev, "resume command failed: %d\n", error);  in elants_i2c_resume()