surface/aggregator/core.c

83 	int status = 0;
89 		status = -EEXIST;
92 	return status;
158 	if (READ_ONCE(link->status) == DL_STATE_SUPPLIER_UNBIND) {
206 	int status;
212 	status = ssam_client_link(c, client);
223 	return status >= 0 ? c : ERR_PTR(status);
258 	int status;
260 	status = ssam_get_firmware_version(ctrl, &version);
261 	if (status)
262 		return status;
277 	int status;
279 	status = ssam_get_firmware_version(ctrl, &version);
280 	if (status < 0)
281 		return status;
310 	int status = 0;
331 		status = serdev_device_set_parity(serdev, SERDEV_PARITY_NONE);
334 		status = serdev_device_set_parity(serdev, SERDEV_PARITY_EVEN);
337 		status = serdev_device_set_parity(serdev, SERDEV_PARITY_ODD);
345 	if (status) {
347 			uart->parity, status);
368 	int status;
378 	status = ssam_notifier_disable_registered(c);
379 	if (status) {
381 			 status);
384 	status = ssam_ctrl_notif_display_off(c);
385 	if (status)
386 		ssam_err(c, "pm: display-off notification failed: %d\n", status);
388 	status = ssam_ctrl_notif_d0_exit(c);
389 	if (status)
390 		ssam_err(c, "pm: D0-exit notification failed: %d\n", status);
398 	int status;
408 	status = ssam_ctrl_notif_display_off(c);
409 	if (status)
410 		ssam_err(c, "pm: display-off notification failed: %d\n", status);
412 	return status;
418 	int status;
428 	status = ssam_ctrl_notif_display_on(c);
429 	if (status)
430 		ssam_err(c, "pm: display-on notification failed: %d\n", status);
436 	int status;
443 	status = ssam_ctrl_notif_d0_exit(c);
444 	if (status) {
445 		ssam_err(c, "pm: D0-exit notification failed: %d\n", status);
449 	status = ssam_irq_arm_for_wakeup(c);
450 	if (status)
460 	return status;
466 	int status;
482 	status = ssam_ctrl_notif_d0_entry(c);
483 	if (status)
484 		ssam_err(c, "pm: D0-entry notification failed: %d\n", status);
492 	int status;
505 	status = ssam_ctrl_notif_d0_exit(c);
506 	if (status) {
507 		ssam_err(c, "pm: D0-exit notification failed: %d\n", status);
509 		return status;
519 	int status;
523 	status = ssam_ctrl_notif_d0_entry(c);
524 	if (status)
525 		ssam_err(c, "pm: D0-exit notification failed: %d\n", status);
527 	return status;
533 	int status;
551 	status = ssam_notifier_disable_registered(c);
552 	if (status) {
554 			 status);
555 		return status;
558 	status = ssam_ctrl_notif_d0_exit(c);
559 	if (status) {
560 		ssam_err(c, "pm: D0-exit notification failed: %d\n", status);
562 		return status;
572 	int status;
582 	status = ssam_ctrl_notif_d0_entry(c);
583 	if (status)
584 		ssam_err(c, "pm: D0-entry notification failed: %d\n", status);
625 	int status;
627 	status = gpiod_count(dev, NULL);
628 	if (status < 0)
629 		return dev_err_probe(dev, status, "no GPIO found\n");
631 	status = devm_acpi_dev_add_driver_gpios(dev, ssam_acpi_gpios);
632 	if (status)
633 		return status;
641 	status = ssam_controller_init(ctrl, serdev);
642 	if (status) {
643 		dev_err_probe(dev, status, "failed to initialize ssam controller\n");
652 	status = serdev_device_open(serdev);
653 	if (status) {
654 		dev_err_probe(dev, status, "failed to open serdev device\n");
660 		status = dev_err_probe(dev, -ENXIO, "failed to setup serdev\n");
665 	status = ssam_controller_start(ctrl);
666 	if (status)
675 	status = ssam_log_firmware_version(ctrl);
676 	if (status) {
677 		dev_err_probe(dev, status, "failed to get firmware version\n");
681 	status = ssam_ctrl_notif_d0_entry(ctrl);
682 	if (status) {
683 		dev_err_probe(dev, status, "D0-entry notification failed\n");
687 	status = ssam_ctrl_notif_display_on(ctrl);
688 	if (status) {
689 		dev_err_probe(dev, status, "display-on notification failed\n");
693 	status = sysfs_create_group(&dev->kobj, &ssam_sam_group);
694 	if (status)
698 	status = ssam_irq_setup(ctrl);
699 	if (status) {
700 		dev_err_probe(dev, status, "failed to setup IRQ\n");
705 	status = ssam_try_set_controller(ctrl);
706 	if (WARN_ON(status))	/* Currently, we're the only provider. */
738 	return status;
744 	int status;
759 	status = ssam_ctrl_notif_display_off(ctrl);
760 	if (status) {
762 			status);
765 	status = ssam_ctrl_notif_d0_exit(ctrl);
766 	if (status) {
768 			status);
808 	int status;
810 	status = ssam_bus_register();
811 	if (status)
814 	status = ssh_ctrl_packet_cache_init();
815 	if (status)
818 	status = ssam_event_item_cache_init();
819 	if (status)
822 	status = serdev_device_driver_register(&ssam_serial_hub);
823 	if (status)
835 	return status;