549 static void applespi_setup_read_txfrs(struct applespi_data *applespi)  in applespi_setup_read_txfrs()  argument
551 	struct spi_message *msg = &applespi->rd_m;  in applespi_setup_read_txfrs()
552 	struct spi_transfer *dl_t = &applespi->dl_t;  in applespi_setup_read_txfrs()
553 	struct spi_transfer *rd_t = &applespi->rd_t;  in applespi_setup_read_txfrs()
558 	dl_t->delay.value = applespi->spi_settings.spi_cs_delay;  in applespi_setup_read_txfrs()
561 	rd_t->rx_buf = applespi->rx_buffer;  in applespi_setup_read_txfrs()
569 static void applespi_setup_write_txfrs(struct applespi_data *applespi)  in applespi_setup_write_txfrs()  argument
571 	struct spi_message *msg = &applespi->wr_m;  in applespi_setup_write_txfrs()
572 	struct spi_transfer *wt_t = &applespi->ww_t;  in applespi_setup_write_txfrs()
573 	struct spi_transfer *dl_t = &applespi->wd_t;  in applespi_setup_write_txfrs()
574 	struct spi_transfer *wr_t = &applespi->wr_t;  in applespi_setup_write_txfrs()
575 	struct spi_transfer *st_t = &applespi->st_t;  in applespi_setup_write_txfrs()
592 	dl_t->delay.value = applespi->spi_settings.spi_cs_delay;  in applespi_setup_write_txfrs()
595 	wr_t->tx_buf = applespi->tx_buffer;  in applespi_setup_write_txfrs()
600 	st_t->rx_buf = applespi->tx_status;  in applespi_setup_write_txfrs()
610 static int applespi_async(struct applespi_data *applespi,  in applespi_async()  argument
614 	message->context = applespi;  in applespi_async()
616 	return spi_async(applespi->spi, message);  in applespi_async()
619 static inline bool applespi_check_write_status(struct applespi_data *applespi,  in applespi_check_write_status()  argument
625 		dev_warn(&applespi->spi->dev, "Error writing to device: %d\n",  in applespi_check_write_status()
630 	if (memcmp(applespi->tx_status, status_ok, APPLESPI_STATUS_SIZE)) {  in applespi_check_write_status()
631 		dev_warn(&applespi->spi->dev, "Error writing to device: %*ph\n",  in applespi_check_write_status()
632 			 APPLESPI_STATUS_SIZE, applespi->tx_status);  in applespi_check_write_status()
639 static int applespi_get_spi_settings(struct applespi_data *applespi)  in applespi_get_spi_settings()  argument
641 	struct acpi_device *adev = ACPI_COMPANION(&applespi->spi->dev);  in applespi_get_spi_settings()
643 	struct spi_settings *settings = &applespi->spi_settings;  in applespi_get_spi_settings()
648 		dev_warn(&applespi->spi->dev,  in applespi_get_spi_settings()
654 		dev_warn(&applespi->spi->dev,  in applespi_get_spi_settings()
660 		dev_warn(&applespi->spi->dev,  in applespi_get_spi_settings()
663 	dev_dbg(&applespi->spi->dev,  in applespi_get_spi_settings()
671 static int applespi_setup_spi(struct applespi_data *applespi)  in applespi_setup_spi()  argument
675 	sts = applespi_get_spi_settings(applespi);  in applespi_setup_spi()
679 	spin_lock_init(&applespi->cmd_msg_lock);  in applespi_setup_spi()
680 	init_waitqueue_head(&applespi->drain_complete);  in applespi_setup_spi()
685 static int applespi_enable_spi(struct applespi_data *applespi)  in applespi_enable_spi()  argument
691 	acpi_sts = acpi_evaluate_integer(applespi->sist, NULL, NULL,  in applespi_enable_spi()
697 	acpi_sts = acpi_execute_simple_method(applespi->sien, NULL, 1);  in applespi_enable_spi()
699 		dev_err(&applespi->spi->dev, "SIEN failed: %s\n",  in applespi_enable_spi()
715 static int applespi_send_cmd_msg(struct applespi_data *applespi);
717 static void applespi_msg_complete(struct applespi_data *applespi,  in applespi_msg_complete()  argument
722 	spin_lock_irqsave(&applespi->cmd_msg_lock, flags);  in applespi_msg_complete()
725 		applespi->read_active = false;  in applespi_msg_complete()
727 		applespi->write_active = false;  in applespi_msg_complete()
729 	if (applespi->drain && !applespi->write_active)  in applespi_msg_complete()
730 		wake_up_all(&applespi->drain_complete);  in applespi_msg_complete()
733 		applespi->cmd_msg_queued = 0;  in applespi_msg_complete()
734 		applespi_send_cmd_msg(applespi);  in applespi_msg_complete()
737 	spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);  in applespi_msg_complete()
742 	struct applespi_data *applespi = context;  in applespi_async_write_complete()  local
743 	enum applespi_evt_type evt_type = applespi->cmd_evt_type;  in applespi_async_write_complete()
746 					 applespi->tx_buffer,  in applespi_async_write_complete()
749 					 applespi->tx_status,  in applespi_async_write_complete()
754 	if (!applespi_check_write_status(applespi, applespi->wr_m.status)) {  in applespi_async_write_complete()
759 		applespi_msg_complete(applespi, true, false);  in applespi_async_write_complete()
763 static int applespi_send_cmd_msg(struct applespi_data *applespi)  in applespi_send_cmd_msg()  argument
767 	struct spi_packet *packet = (struct spi_packet *)applespi->tx_buffer;  in applespi_send_cmd_msg()
773 	if (applespi->drain)  in applespi_send_cmd_msg()
777 	if (applespi->cmd_msg_queued) {  in applespi_send_cmd_msg()
778 		if (ktime_ms_delta(ktime_get(), applespi->cmd_msg_queued) < 1000)  in applespi_send_cmd_msg()
781 		dev_warn(&applespi->spi->dev, "Command %d timed out\n",  in applespi_send_cmd_msg()
782 			 applespi->cmd_evt_type);  in applespi_send_cmd_msg()
784 		applespi->cmd_msg_queued = 0;  in applespi_send_cmd_msg()
785 		applespi->write_active = false;  in applespi_send_cmd_msg()
792 	if (applespi->want_tp_info_cmd) {  in applespi_send_cmd_msg()
793 		applespi->want_tp_info_cmd = false;  in applespi_send_cmd_msg()
794 		applespi->want_mt_init_cmd = true;  in applespi_send_cmd_msg()
795 		applespi->cmd_evt_type = ET_CMD_TP_INI;  in applespi_send_cmd_msg()
806 	} else if (applespi->want_mt_init_cmd) {  in applespi_send_cmd_msg()
807 		applespi->want_mt_init_cmd = false;  in applespi_send_cmd_msg()
808 		applespi->cmd_evt_type = ET_CMD_TP_INI;  in applespi_send_cmd_msg()
819 	} else if (applespi->want_cl_led_on != applespi->have_cl_led_on) {  in applespi_send_cmd_msg()
820 		applespi->have_cl_led_on = applespi->want_cl_led_on;  in applespi_send_cmd_msg()
821 		applespi->cmd_evt_type = ET_CMD_CL;  in applespi_send_cmd_msg()
830 		message->capsl_command.led = applespi->have_cl_led_on ? 2 : 0;  in applespi_send_cmd_msg()
833 	} else if (applespi->want_bl_level != applespi->have_bl_level) {  in applespi_send_cmd_msg()
834 		applespi->have_bl_level = applespi->want_bl_level;  in applespi_send_cmd_msg()
835 		applespi->cmd_evt_type = ET_CMD_BL;  in applespi_send_cmd_msg()
845 				cpu_to_le16(applespi->have_bl_level);  in applespi_send_cmd_msg()
847 		if (applespi->have_bl_level > 0)  in applespi_send_cmd_msg()
862 	message->counter = applespi->cmd_msg_cntr++ % (U8_MAX + 1);  in applespi_send_cmd_msg()
875 	sts = applespi_async(applespi, &applespi->wr_m,  in applespi_send_cmd_msg()
878 		dev_warn(&applespi->spi->dev,  in applespi_send_cmd_msg()
883 	applespi->cmd_msg_queued = ktime_get_coarse();  in applespi_send_cmd_msg()
884 	applespi->write_active = true;  in applespi_send_cmd_msg()
889 static void applespi_init(struct applespi_data *applespi, bool is_resume)  in applespi_init()  argument
893 	spin_lock_irqsave(&applespi->cmd_msg_lock, flags);  in applespi_init()
896 		applespi->want_mt_init_cmd = true;  in applespi_init()
898 		applespi->want_tp_info_cmd = true;  in applespi_init()
899 	applespi_send_cmd_msg(applespi);  in applespi_init()
901 	spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);  in applespi_init()
904 static int applespi_set_capsl_led(struct applespi_data *applespi,  in applespi_set_capsl_led()  argument
910 	spin_lock_irqsave(&applespi->cmd_msg_lock, flags);  in applespi_set_capsl_led()
912 	applespi->want_cl_led_on = capslock_on;  in applespi_set_capsl_led()
913 	sts = applespi_send_cmd_msg(applespi);  in applespi_set_capsl_led()
915 	spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);  in applespi_set_capsl_led()
923 	struct applespi_data *applespi =  in applespi_set_bl_level()  local
927 	spin_lock_irqsave(&applespi->cmd_msg_lock, flags);  in applespi_set_bl_level()
930 		applespi->want_bl_level = value;  in applespi_set_bl_level()
937 		applespi->want_bl_level =  in applespi_set_bl_level()
942 	applespi_send_cmd_msg(applespi);  in applespi_set_bl_level()
944 	spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);  in applespi_set_bl_level()
950 	struct applespi_data *applespi = input_get_drvdata(dev);  in applespi_event()  local
954 		applespi_set_capsl_led(applespi, !!test_bit(LED_CAPSL, dev->led));  in applespi_event()
968 static void applespi_debug_update_dimensions(struct applespi_data *applespi,  in applespi_debug_update_dimensions()  argument
971 	applespi->tp_dim_min_x = min(applespi->tp_dim_min_x,  in applespi_debug_update_dimensions()
973 	applespi->tp_dim_max_x = max(applespi->tp_dim_max_x,  in applespi_debug_update_dimensions()
975 	applespi->tp_dim_min_y = min(applespi->tp_dim_min_y,  in applespi_debug_update_dimensions()
977 	applespi->tp_dim_max_y = max(applespi->tp_dim_max_y,  in applespi_debug_update_dimensions()
983 	struct applespi_data *applespi = inode->i_private;  in applespi_tp_dim_open()  local
985 	file->private_data = applespi;  in applespi_tp_dim_open()
987 	snprintf(applespi->tp_dim_val, sizeof(applespi->tp_dim_val),  in applespi_tp_dim_open()
989 		 applespi->touchpad_input_dev->id.product,  in applespi_tp_dim_open()
990 		 applespi->tp_dim_min_x, applespi->tp_dim_min_y,  in applespi_tp_dim_open()
991 		 applespi->tp_dim_max_x - applespi->tp_dim_min_x,  in applespi_tp_dim_open()
992 		 applespi->tp_dim_max_y - applespi->tp_dim_min_y);  in applespi_tp_dim_open()
1000 	struct applespi_data *applespi = file->private_data;  in applespi_tp_dim_read()  local
1002 	return simple_read_from_buffer(buf, len, off, applespi->tp_dim_val,  in applespi_tp_dim_read()
1003 				       strlen(applespi->tp_dim_val));  in applespi_tp_dim_read()
1034 static void report_tp_state(struct applespi_data *applespi,  in report_tp_state()  argument
1039 	const struct applespi_tp_info *tp_info = &applespi->tp_info;  in report_tp_state()
1043 	input = smp_load_acquire(&applespi->touchpad_input_dev);  in report_tp_state()
1053 		applespi->pos[n].x = le16_to_int(f->abs_x);  in report_tp_state()
1054 		applespi->pos[n].y = tp_info->y_min + tp_info->y_max -  in report_tp_state()
1058 		if (applespi->debug_tp_dim)  in report_tp_state()
1059 			applespi_debug_update_dimensions(applespi, f);  in report_tp_state()
1062 	input_mt_assign_slots(input, applespi->slots, applespi->pos, n, 0);  in report_tp_state()
1065 		report_finger_data(input, applespi->slots[i],  in report_tp_state()
1066 				   &applespi->pos[i], &t->fingers[i]);  in report_tp_state()
1147 applespi_handle_keyboard_event(struct applespi_data *applespi,  in applespi_handle_keyboard_event()  argument
1167 			   applespi->last_keys_pressed[i], MAX_ROLLOVER))  in applespi_handle_keyboard_event()
1170 		key = applespi_code_to_key(applespi->last_keys_pressed[i],  in applespi_handle_keyboard_event()
1171 					   applespi->last_keys_fn_pressed[i]);  in applespi_handle_keyboard_event()
1172 		input_report_key(applespi->keyboard_input_dev, key, 0);  in applespi_handle_keyboard_event()
1173 		applespi->last_keys_fn_pressed[i] = 0;  in applespi_handle_keyboard_event()
1184 			input_report_key(applespi->keyboard_input_dev, key, 1);  in applespi_handle_keyboard_event()
1185 			applespi->last_keys_fn_pressed[i] =  in applespi_handle_keyboard_event()
1193 			input_report_key(applespi->keyboard_input_dev,  in applespi_handle_keyboard_event()
1196 			input_report_key(applespi->keyboard_input_dev,  in applespi_handle_keyboard_event()
1201 	if (keyboard_protocol->fn_pressed && !applespi->last_fn_pressed)  in applespi_handle_keyboard_event()
1202 		input_report_key(applespi->keyboard_input_dev, KEY_FN, 1);  in applespi_handle_keyboard_event()
1203 	else if (!keyboard_protocol->fn_pressed && applespi->last_fn_pressed)  in applespi_handle_keyboard_event()
1204 		input_report_key(applespi->keyboard_input_dev, KEY_FN, 0);  in applespi_handle_keyboard_event()
1205 	applespi->last_fn_pressed = keyboard_protocol->fn_pressed;  in applespi_handle_keyboard_event()
1208 	input_sync(applespi->keyboard_input_dev);  in applespi_handle_keyboard_event()
1209 	memcpy(&applespi->last_keys_pressed, keyboard_protocol->keys_pressed,  in applespi_handle_keyboard_event()
1210 	       sizeof(applespi->last_keys_pressed));  in applespi_handle_keyboard_event()
1226 applespi_register_touchpad_device(struct applespi_data *applespi,  in applespi_register_touchpad_device()  argument
1236 		dev_warn(&applespi->spi->dev,  in applespi_register_touchpad_device()
1242 	applespi->tp_info = *tp_info;  in applespi_register_touchpad_device()
1249 			dev_info(&applespi->spi->dev,  in applespi_register_touchpad_device()
1251 			applespi->tp_info.x_min = x;  in applespi_register_touchpad_device()
1252 			applespi->tp_info.y_min = y;  in applespi_register_touchpad_device()
1253 			applespi->tp_info.x_max = x + w;  in applespi_register_touchpad_device()
1254 			applespi->tp_info.y_max = y + h;  in applespi_register_touchpad_device()
1256 			dev_warn(&applespi->spi->dev,  in applespi_register_touchpad_device()
1265 			 applespi->tp_info.x_min,  in applespi_register_touchpad_device()
1266 			 applespi->tp_info.y_min,  in applespi_register_touchpad_device()
1267 			 applespi->tp_info.x_max - applespi->tp_info.x_min,  in applespi_register_touchpad_device()
1268 			 applespi->tp_info.y_max - applespi->tp_info.y_min);  in applespi_register_touchpad_device()
1272 	touchpad_input_dev = devm_input_allocate_device(&applespi->spi->dev);  in applespi_register_touchpad_device()
1274 		dev_err(&applespi->spi->dev,  in applespi_register_touchpad_device()
1281 	touchpad_input_dev->dev.parent = &applespi->spi->dev;  in applespi_register_touchpad_device()
1313 			     applespi->tp_info.x_min, applespi->tp_info.x_max,  in applespi_register_touchpad_device()
1316 			     applespi->tp_info.y_min, applespi->tp_info.y_max,  in applespi_register_touchpad_device()
1327 		dev_err(&applespi->spi->dev,  in applespi_register_touchpad_device()
1335 		dev_err(&applespi->spi->dev,  in applespi_register_touchpad_device()
1341 	smp_store_release(&applespi->touchpad_input_dev, touchpad_input_dev);  in applespi_register_touchpad_device()
1348 	struct applespi_data *applespi =  in applespi_worker()  local
1351 	applespi_register_touchpad_device(applespi, &applespi->rcvd_tp_info);  in applespi_worker()
1354 static void applespi_handle_cmd_response(struct applespi_data *applespi,  in applespi_handle_cmd_response()  argument
1364 		applespi->rcvd_tp_info = message->tp_info;  in applespi_handle_cmd_response()
1365 		schedule_work(&applespi->work);  in applespi_handle_cmd_response()
1370 		dev_warn_ratelimited(&applespi->spi->dev,  in applespi_handle_cmd_response()
1379 		dev_info(&applespi->spi->dev, "modeswitch done.\n");  in applespi_handle_cmd_response()
1382 static bool applespi_verify_crc(struct applespi_data *applespi, u8 *buffer,  in applespi_verify_crc()  argument
1389 		dev_warn_ratelimited(&applespi->spi->dev,  in applespi_verify_crc()
1399 static void applespi_debug_print_read_packet(struct applespi_data *applespi,  in applespi_debug_print_read_packet()  argument
1411 		evt_type = applespi->cmd_evt_type;  in applespi_debug_print_read_packet()
1415 	applespi_get_trace_fun(evt_type)(evt_type, PT_READ, applespi->rx_buffer,  in applespi_debug_print_read_packet()
1419 static void applespi_got_data(struct applespi_data *applespi)  in applespi_got_data()  argument
1429 	if (!applespi_verify_crc(applespi, applespi->rx_buffer,  in applespi_got_data()
1433 		spin_lock_irqsave(&applespi->cmd_msg_lock, flags);  in applespi_got_data()
1435 		if (applespi->drain) {  in applespi_got_data()
1436 			applespi->read_active = false;  in applespi_got_data()
1437 			applespi->write_active = false;  in applespi_got_data()
1439 			wake_up_all(&applespi->drain_complete);  in applespi_got_data()
1442 		spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);  in applespi_got_data()
1447 	packet = (struct spi_packet *)applespi->rx_buffer;  in applespi_got_data()
1449 	applespi_debug_print_read_packet(applespi, packet);  in applespi_got_data()
1456 		dev_warn_ratelimited(&applespi->spi->dev,  in applespi_got_data()
1464 		if (off != applespi->saved_msg_len) {  in applespi_got_data()
1465 			dev_warn_ratelimited(&applespi->spi->dev,  in applespi_got_data()
1467 					     off, applespi->saved_msg_len);  in applespi_got_data()
1472 			dev_warn_ratelimited(&applespi->spi->dev,  in applespi_got_data()
1479 			dev_warn_ratelimited(&applespi->spi->dev,  in applespi_got_data()
1485 		memcpy(applespi->msg_buf + off, &packet->data, len);  in applespi_got_data()
1486 		applespi->saved_msg_len += len;  in applespi_got_data()
1491 		message = (struct message *)applespi->msg_buf;  in applespi_got_data()
1492 		msg_len = applespi->saved_msg_len;  in applespi_got_data()
1499 	if (!applespi_verify_crc(applespi, (u8 *)message, msg_len))  in applespi_got_data()
1503 		dev_warn_ratelimited(&applespi->spi->dev,  in applespi_got_data()
1513 		applespi_handle_keyboard_event(applespi, &message->keyboard);  in applespi_got_data()
1524 			dev_warn_ratelimited(&applespi->spi->dev,  in applespi_got_data()
1532 			dev_warn_ratelimited(&applespi->spi->dev,  in applespi_got_data()
1539 		report_tp_state(applespi, tp);  in applespi_got_data()
1542 		applespi_handle_cmd_response(applespi, packet, message);  in applespi_got_data()
1546 	applespi->saved_msg_len = 0;  in applespi_got_data()
1548 	applespi_msg_complete(applespi, packet->flags == PACKET_TYPE_WRITE,  in applespi_got_data()
1554 	struct applespi_data *applespi = context;  in applespi_async_read_complete()  local
1556 	if (applespi->rd_m.status < 0) {  in applespi_async_read_complete()
1557 		dev_warn(&applespi->spi->dev, "Error reading from device: %d\n",  in applespi_async_read_complete()
1558 			 applespi->rd_m.status);  in applespi_async_read_complete()
1564 		applespi_msg_complete(applespi, true, true);  in applespi_async_read_complete()
1566 		applespi_got_data(applespi);  in applespi_async_read_complete()
1569 	acpi_finish_gpe(NULL, applespi->gpe);  in applespi_async_read_complete()
1574 	struct applespi_data *applespi = context;  in applespi_notify()  local
1580 	spin_lock_irqsave(&applespi->cmd_msg_lock, flags);  in applespi_notify()
1582 	if (!applespi->suspended) {  in applespi_notify()
1583 		sts = applespi_async(applespi, &applespi->rd_m,  in applespi_notify()
1586 			dev_warn(&applespi->spi->dev,  in applespi_notify()
1590 			applespi->read_active = true;  in applespi_notify()
1593 	spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);  in applespi_notify()
1598 static int applespi_get_saved_bl_level(struct applespi_data *applespi)  in applespi_get_saved_bl_level()  argument
1608 		dev_warn(&applespi->spi->dev,  in applespi_get_saved_bl_level()
1615 static void applespi_save_bl_level(struct applespi_data *applespi,  in applespi_save_bl_level()  argument
1630 		dev_warn(&applespi->spi->dev,  in applespi_save_bl_level()
1636 	struct applespi_data *applespi;  in applespi_probe()  local
1651 	applespi = devm_kzalloc(&spi->dev, sizeof(*applespi), GFP_KERNEL);  in applespi_probe()
1652 	if (!applespi)  in applespi_probe()
1655 	applespi->spi = spi;  in applespi_probe()
1657 	INIT_WORK(&applespi->work, applespi_worker);  in applespi_probe()
1660 	spi_set_drvdata(spi, applespi);  in applespi_probe()
1663 	applespi->tx_buffer = devm_kmalloc(&spi->dev, APPLESPI_PACKET_SIZE,  in applespi_probe()
1665 	applespi->tx_status = devm_kmalloc(&spi->dev, APPLESPI_STATUS_SIZE,  in applespi_probe()
1667 	applespi->rx_buffer = devm_kmalloc(&spi->dev, APPLESPI_PACKET_SIZE,  in applespi_probe()
1669 	applespi->msg_buf = devm_kmalloc_array(&spi->dev, MAX_PKTS_PER_MSG,  in applespi_probe()
1673 	if (!applespi->tx_buffer || !applespi->tx_status ||  in applespi_probe()
1674 	    !applespi->rx_buffer || !applespi->msg_buf)  in applespi_probe()
1678 	applespi_setup_read_txfrs(applespi);  in applespi_probe()
1679 	applespi_setup_write_txfrs(applespi);  in applespi_probe()
1682 	acpi_sts = acpi_get_handle(spi_handle, "SIEN", &applespi->sien);  in applespi_probe()
1684 		dev_err(&applespi->spi->dev,  in applespi_probe()
1690 	acpi_sts = acpi_get_handle(spi_handle, "SIST", &applespi->sist);  in applespi_probe()
1692 		dev_err(&applespi->spi->dev,  in applespi_probe()
1699 	sts = applespi_setup_spi(applespi);  in applespi_probe()
1703 	sts = applespi_enable_spi(applespi);  in applespi_probe()
1708 	applespi->keyboard_input_dev = devm_input_allocate_device(&spi->dev);  in applespi_probe()
1710 	if (!applespi->keyboard_input_dev)  in applespi_probe()
1713 	applespi->keyboard_input_dev->name = "Apple SPI Keyboard";  in applespi_probe()
1714 	applespi->keyboard_input_dev->phys = "applespi/input0";  in applespi_probe()
1715 	applespi->keyboard_input_dev->dev.parent = &spi->dev;  in applespi_probe()
1716 	applespi->keyboard_input_dev->id.bustype = BUS_SPI;  in applespi_probe()
1718 	applespi->keyboard_input_dev->evbit[0] =  in applespi_probe()
1720 	applespi->keyboard_input_dev->ledbit[0] = BIT_MASK(LED_CAPSL);  in applespi_probe()
1722 	input_set_drvdata(applespi->keyboard_input_dev, applespi);  in applespi_probe()
1723 	applespi->keyboard_input_dev->event = applespi_event;  in applespi_probe()
1727 			input_set_capability(applespi->keyboard_input_dev,  in applespi_probe()
1732 			input_set_capability(applespi->keyboard_input_dev,  in applespi_probe()
1737 			input_set_capability(applespi->keyboard_input_dev,  in applespi_probe()
1740 	input_set_capability(applespi->keyboard_input_dev, EV_KEY, KEY_FN);  in applespi_probe()
1742 	sts = input_register_device(applespi->keyboard_input_dev);  in applespi_probe()
1744 		dev_err(&applespi->spi->dev,  in applespi_probe()
1755 		dev_err(&applespi->spi->dev,  in applespi_probe()
1760 	applespi->gpe = (int)gpe;  in applespi_probe()
1762 	acpi_sts = acpi_install_gpe_handler(NULL, applespi->gpe,  in applespi_probe()
1764 					    applespi_notify, applespi);  in applespi_probe()
1766 		dev_err(&applespi->spi->dev,  in applespi_probe()
1768 			applespi->gpe, acpi_format_exception(acpi_sts));  in applespi_probe()
1772 	applespi->suspended = false;  in applespi_probe()
1774 	acpi_sts = acpi_enable_gpe(NULL, applespi->gpe);  in applespi_probe()
1776 		dev_err(&applespi->spi->dev,  in applespi_probe()
1778 			applespi->gpe, acpi_format_exception(acpi_sts));  in applespi_probe()
1779 		acpi_remove_gpe_handler(NULL, applespi->gpe, applespi_notify);  in applespi_probe()
1784 	applespi_init(applespi, false);  in applespi_probe()
1794 	sts = applespi_get_saved_bl_level(applespi);  in applespi_probe()
1796 		applespi_set_bl_level(&applespi->backlight_info, sts);  in applespi_probe()
1798 	applespi->backlight_info.name            = "spi::kbd_backlight";  in applespi_probe()
1799 	applespi->backlight_info.default_trigger = "kbd-backlight";  in applespi_probe()
1800 	applespi->backlight_info.brightness_set  = applespi_set_bl_level;  in applespi_probe()
1802 	sts = devm_led_classdev_register(&spi->dev, &applespi->backlight_info);  in applespi_probe()
1804 		dev_warn(&applespi->spi->dev,  in applespi_probe()
1809 	applespi->debugfs_root = debugfs_create_dir("applespi", NULL);  in applespi_probe()
1811 	debugfs_create_bool("enable_tp_dim", 0600, applespi->debugfs_root,  in applespi_probe()
1812 			    &applespi->debug_tp_dim);  in applespi_probe()
1814 	debugfs_create_file("tp_dim", 0400, applespi->debugfs_root, applespi,  in applespi_probe()
1820 static void applespi_drain_writes(struct applespi_data *applespi)  in applespi_drain_writes()  argument
1824 	spin_lock_irqsave(&applespi->cmd_msg_lock, flags);  in applespi_drain_writes()
1826 	applespi->drain = true;  in applespi_drain_writes()
1827 	wait_event_lock_irq(applespi->drain_complete, !applespi->write_active,  in applespi_drain_writes()
1828 			    applespi->cmd_msg_lock);  in applespi_drain_writes()
1830 	spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);  in applespi_drain_writes()
1833 static void applespi_drain_reads(struct applespi_data *applespi)  in applespi_drain_reads()  argument
1837 	spin_lock_irqsave(&applespi->cmd_msg_lock, flags);  in applespi_drain_reads()
1839 	wait_event_lock_irq(applespi->drain_complete, !applespi->read_active,  in applespi_drain_reads()
1840 			    applespi->cmd_msg_lock);  in applespi_drain_reads()
1842 	applespi->suspended = true;  in applespi_drain_reads()
1844 	spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);  in applespi_drain_reads()
1849 	struct applespi_data *applespi = spi_get_drvdata(spi);  in applespi_remove()  local
1851 	applespi_drain_writes(applespi);  in applespi_remove()
1853 	acpi_disable_gpe(NULL, applespi->gpe);  in applespi_remove()
1854 	acpi_remove_gpe_handler(NULL, applespi->gpe, applespi_notify);  in applespi_remove()
1857 	applespi_drain_reads(applespi);  in applespi_remove()
1859 	debugfs_remove_recursive(applespi->debugfs_root);  in applespi_remove()
1864 	struct applespi_data *applespi = spi_get_drvdata(spi);  in applespi_shutdown()  local
1866 	applespi_save_bl_level(applespi, applespi->have_bl_level);  in applespi_shutdown()
1872 	struct applespi_data *applespi = spi_get_drvdata(spi);  in applespi_poweroff_late()  local
1874 	applespi_save_bl_level(applespi, applespi->have_bl_level);  in applespi_poweroff_late()
1882 	struct applespi_data *applespi = spi_get_drvdata(spi);  in applespi_suspend()  local
1887 	sts = applespi_set_capsl_led(applespi, false);  in applespi_suspend()
1889 		dev_warn(&applespi->spi->dev,  in applespi_suspend()
1892 	applespi_drain_writes(applespi);  in applespi_suspend()
1895 	acpi_sts = acpi_disable_gpe(NULL, applespi->gpe);  in applespi_suspend()
1897 		dev_err(&applespi->spi->dev,  in applespi_suspend()
1899 			applespi->gpe, acpi_format_exception(acpi_sts));  in applespi_suspend()
1901 	applespi_drain_reads(applespi);  in applespi_suspend()
1909 	struct applespi_data *applespi = spi_get_drvdata(spi);  in applespi_resume()  local
1914 	spin_lock_irqsave(&applespi->cmd_msg_lock, flags);  in applespi_resume()
1916 	applespi->drain = false;  in applespi_resume()
1917 	applespi->have_cl_led_on = false;  in applespi_resume()
1918 	applespi->have_bl_level = 0;  in applespi_resume()
1919 	applespi->cmd_msg_queued = 0;  in applespi_resume()
1920 	applespi->read_active = false;  in applespi_resume()
1921 	applespi->write_active = false;  in applespi_resume()
1923 	applespi->suspended = false;  in applespi_resume()
1925 	spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);  in applespi_resume()
1928 	applespi_enable_spi(applespi);  in applespi_resume()
1931 	acpi_sts = acpi_enable_gpe(NULL, applespi->gpe);  in applespi_resume()
1933 		dev_err(&applespi->spi->dev,  in applespi_resume()
1935 			applespi->gpe, acpi_format_exception(acpi_sts));  in applespi_resume()
1938 	applespi_init(applespi, true);  in applespi_resume()