4  * Copyright (C) 2012-2013, Samsung Electronics, Co., Ltd.
11  * distribute, sub license, and/or sell copies of the Software, and to
21  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
40 #include <linux/media-bus-format.h>
48  * peripherals.
63 	if (!strcmp(dsi->name, drv->name))  in mipi_dsi_device_match()
75 	if (err != -ENODEV)  in mipi_dsi_uevent()
79 		       dsi->name);  in mipi_dsi_uevent()
96 	.name = "mipi-dsi",
104  * of_find_mipi_dsi_device_by_node() - find the MIPI DSI device matching a
125 	of_node_put(dev->of_node);  in mipi_dsi_dev_release()
139 		return ERR_PTR(-ENOMEM);  in mipi_dsi_device_alloc()
141 	dsi->host = host;  in mipi_dsi_device_alloc()
142 	dsi->dev.bus = &mipi_dsi_bus_type;  in mipi_dsi_device_alloc()
143 	dsi->dev.parent = host->dev;  in mipi_dsi_device_alloc()
144 	dsi->dev.type = &mipi_dsi_device_type;  in mipi_dsi_device_alloc()
146 	device_initialize(&dsi->dev);  in mipi_dsi_device_alloc()
153 	struct mipi_dsi_host *host = dsi->host;  in mipi_dsi_device_add()
155 	dev_set_name(&dsi->dev, "%s.%d", dev_name(host->dev),  dsi->channel);  in mipi_dsi_device_add()
157 	return device_add(&dsi->dev);  in mipi_dsi_device_add()
169 		dev_err(host->dev, "modalias failure on %pOF\n", node);  in of_mipi_dsi_device_add()
170 		return ERR_PTR(-EINVAL);  in of_mipi_dsi_device_add()
175 		dev_err(host->dev, "device node %pOF has no valid reg property: %d\n",  in of_mipi_dsi_device_add()
177 		return ERR_PTR(-EINVAL);  in of_mipi_dsi_device_add()
189 	return ERR_PTR(-ENODEV);  in of_mipi_dsi_device_add()
194  * mipi_dsi_device_register_full - create a MIPI DSI device
213 		dev_err(host->dev, "invalid mipi_dsi_device_info pointer\n");  in mipi_dsi_device_register_full()
214 		return ERR_PTR(-EINVAL);  in mipi_dsi_device_register_full()
217 	if (info->channel > 3) {  in mipi_dsi_device_register_full()
218 		dev_err(host->dev, "invalid virtual channel: %u\n", info->channel);  in mipi_dsi_device_register_full()
219 		return ERR_PTR(-EINVAL);  in mipi_dsi_device_register_full()
224 		dev_err(host->dev, "failed to allocate DSI device %ld\n",  in mipi_dsi_device_register_full()
229 	device_set_node(&dsi->dev, of_fwnode_handle(info->node));  in mipi_dsi_device_register_full()
230 	dsi->channel = info->channel;  in mipi_dsi_device_register_full()
231 	strscpy(dsi->name, info->type, sizeof(dsi->name));  in mipi_dsi_device_register_full()
235 		dev_err(host->dev, "failed to add DSI device %d\n", ret);  in mipi_dsi_device_register_full()
245  * mipi_dsi_device_unregister - unregister MIPI DSI device
250 	device_unregister(&dsi->dev);  in mipi_dsi_device_unregister()
262  * devm_mipi_dsi_device_register_full - create a managed MIPI DSI device
263  * @dev: device to tie the MIPI-DSI device lifetime to
304  * of_find_mipi_dsi_host_by_node() - find the MIPI DSI host matching a
319 		if (host->dev->of_node == node) {  in of_find_mipi_dsi_host_by_node()
335 	for_each_available_child_of_node(host->dev->of_node, node) {  in mipi_dsi_host_register()
343 	list_add_tail(&host->list, &host_list);  in mipi_dsi_host_register()
354 	if (dsi->attached)  in mipi_dsi_remove_device_fn()
363 	device_for_each_child(host->dev, NULL, mipi_dsi_remove_device_fn);  in mipi_dsi_host_unregister()
366 	list_del_init(&host->list);  in mipi_dsi_host_unregister()
372  * mipi_dsi_attach - attach a DSI device to its DSI host
377 	const struct mipi_dsi_host_ops *ops = dsi->host->ops;  in mipi_dsi_attach()
380 	if (!ops || !ops->attach)  in mipi_dsi_attach()
381 		return -ENOSYS;  in mipi_dsi_attach()
383 	ret = ops->attach(dsi->host, dsi);  in mipi_dsi_attach()
387 	dsi->attached = true;  in mipi_dsi_attach()
394  * mipi_dsi_detach - detach a DSI device from its DSI host
399 	const struct mipi_dsi_host_ops *ops = dsi->host->ops;  in mipi_dsi_detach()
401 	if (WARN_ON(!dsi->attached))  in mipi_dsi_detach()
402 		return -EINVAL;  in mipi_dsi_detach()
404 	if (!ops || !ops->detach)  in mipi_dsi_detach()
405 		return -ENOSYS;  in mipi_dsi_detach()
407 	dsi->attached = false;  in mipi_dsi_detach()
409 	return ops->detach(dsi->host, dsi);  in mipi_dsi_detach()
421  * devm_mipi_dsi_attach - Attach a MIPI-DSI device to its DSI Host
422  * @dev: device to tie the MIPI-DSI device attachment lifetime to
451 	const struct mipi_dsi_host_ops *ops = dsi->host->ops;  in mipi_dsi_device_transfer()
453 	if (!ops || !ops->transfer)  in mipi_dsi_device_transfer()
454 		return -ENOSYS;  in mipi_dsi_device_transfer()
456 	if (dsi->mode_flags & MIPI_DSI_MODE_LPM)  in mipi_dsi_device_transfer()
457 		msg->flags |= MIPI_DSI_MSG_USE_LPM;  in mipi_dsi_device_transfer()
459 	return ops->transfer(dsi->host, msg);  in mipi_dsi_device_transfer()
463  * mipi_dsi_packet_format_is_short - check if a packet is of the short format
501  * mipi_dsi_packet_format_is_long - check if a packet is of the long format
534  * mipi_dsi_create_packet - create a packet from a message according to the
545 		return -EINVAL;  in mipi_dsi_create_packet()
548 	if (!mipi_dsi_packet_format_is_short(msg->type) &&  in mipi_dsi_create_packet()
549 	    !mipi_dsi_packet_format_is_long(msg->type))  in mipi_dsi_create_packet()
550 		return -EINVAL;  in mipi_dsi_create_packet()
552 	if (msg->channel > 3)  in mipi_dsi_create_packet()
553 		return -EINVAL;  in mipi_dsi_create_packet()
556 	packet->header[0] = ((msg->channel & 0x3) << 6) | (msg->type & 0x3f);  in mipi_dsi_create_packet()
567 	if (mipi_dsi_packet_format_is_long(msg->type)) {  in mipi_dsi_create_packet()
568 		packet->header[1] = (msg->tx_len >> 0) & 0xff;  in mipi_dsi_create_packet()
569 		packet->header[2] = (msg->tx_len >> 8) & 0xff;  in mipi_dsi_create_packet()
571 		packet->payload_length = msg->tx_len;  in mipi_dsi_create_packet()
572 		packet->payload = msg->tx_buf;  in mipi_dsi_create_packet()
574 		const u8 *tx = msg->tx_buf;  in mipi_dsi_create_packet()
576 		packet->header[1] = (msg->tx_len > 0) ? tx[0] : 0;  in mipi_dsi_create_packet()
577 		packet->header[2] = (msg->tx_len > 1) ? tx[1] : 0;  in mipi_dsi_create_packet()
580 	packet->size = sizeof(packet->header) + packet->payload_length;  in mipi_dsi_create_packet()
587  * mipi_dsi_shutdown_peripheral() - sends a Shutdown Peripheral command
595 		.channel = dsi->channel,  in mipi_dsi_shutdown_peripheral()
607  * mipi_dsi_turn_on_peripheral() - sends a Turn On Peripheral command
617 		.channel = dsi->channel,  in mipi_dsi_turn_on_peripheral()
629  * mipi_dsi_set_maximum_return_packet_size() - specify the maximum size of
642 		.channel = dsi->channel,  in mipi_dsi_set_maximum_return_packet_size()
654  * mipi_dsi_compression_mode_ext() - enable/disable DSC on the peripheral
658  * @pps_selector: Select PPS from the table of pre-stored or uploaded PPS entries
671 		.channel = dsi->channel,  in mipi_dsi_compression_mode_ext()
679 		return -EINVAL;  in mipi_dsi_compression_mode_ext()
692  * mipi_dsi_compression_mode() - enable/disable DSC on the peripheral
708  * mipi_dsi_picture_parameter_set() - transmit the DSC PPS to the peripheral
721 		.channel = dsi->channel,  in mipi_dsi_picture_parameter_set()
733  * mipi_dsi_generic_write() - transmit data using a generic write packet
748 		.channel = dsi->channel,  in mipi_dsi_generic_write()
776  * mipi_dsi_generic_write_chatty() - mipi_dsi_generic_write() w/ an error log
789 	struct device *dev = &dsi->dev;  in mipi_dsi_generic_write_chatty()
804  * mipi_dsi_generic_write_multi() - mipi_dsi_generic_write_chatty() w/ accum_err
815 	struct mipi_dsi_device *dsi = ctx->dsi;  in mipi_dsi_generic_write_multi()
816 	struct device *dev = &dsi->dev;  in mipi_dsi_generic_write_multi()
819 	if (ctx->accum_err)  in mipi_dsi_generic_write_multi()
824 		ctx->accum_err = ret;  in mipi_dsi_generic_write_multi()
826 			(int)size, payload, ctx->accum_err);  in mipi_dsi_generic_write_multi()
832  * mipi_dsi_generic_read() - receive data using a generic read packet
849 		.channel = dsi->channel,  in mipi_dsi_generic_read()
870 		return -EINVAL;  in mipi_dsi_generic_read()
878  * drm_mipi_dsi_get_input_bus_fmt() - Get the required MEDIA_BUS_FMT_* based
888  * a 32-bit MEDIA_BUS_FMT_* value on success or 0 in case of failure.
913  * mipi_dsi_dcs_write_buffer() - transmit a DCS command with payload
928 		.channel = dsi->channel,  in mipi_dsi_dcs_write_buffer()
935 		return -EINVAL;  in mipi_dsi_dcs_write_buffer()
955  * mipi_dsi_dcs_write_buffer_chatty - mipi_dsi_dcs_write_buffer() w/ an error log
968 	struct device *dev = &dsi->dev;  in mipi_dsi_dcs_write_buffer_chatty()
983  * mipi_dsi_dcs_write_buffer_multi - mipi_dsi_dcs_write_buffer_chatty() w/ accum_err
994 	struct mipi_dsi_device *dsi = ctx->dsi;  in mipi_dsi_dcs_write_buffer_multi()
995 	struct device *dev = &dsi->dev;  in mipi_dsi_dcs_write_buffer_multi()
998 	if (ctx->accum_err)  in mipi_dsi_dcs_write_buffer_multi()
1003 		ctx->accum_err = ret;  in mipi_dsi_dcs_write_buffer_multi()
1005 			(int)len, data, ctx->accum_err);  in mipi_dsi_dcs_write_buffer_multi()
1011  * mipi_dsi_dcs_write() - send DCS write command
1032 	if (len > ARRAY_SIZE(stack_tx) - 1) {  in mipi_dsi_dcs_write()
1035 			return -ENOMEM;  in mipi_dsi_dcs_write()
1055  * mipi_dsi_dcs_read() - send DCS read request command
1067 		.channel = dsi->channel,  in mipi_dsi_dcs_read()
1080  * mipi_dsi_dcs_nop() - send DCS nop packet
1100  * mipi_dsi_dcs_soft_reset() - perform a software reset of the display module
1120  * mipi_dsi_dcs_get_power_mode() - query the display module's current power
1135 			err = -ENODATA;  in mipi_dsi_dcs_get_power_mode()
1145  * mipi_dsi_dcs_get_pixel_format() - gets the pixel format for the RGB image
1160 			err = -ENODATA;  in mipi_dsi_dcs_get_pixel_format()
1170  * mipi_dsi_dcs_enter_sleep_mode() - disable all unnecessary blocks inside the
1191  * mipi_dsi_dcs_exit_sleep_mode() - enable all blocks inside the display
1212  * mipi_dsi_dcs_set_display_off() - stop displaying the image data on the
1233  * mipi_dsi_dcs_set_display_on() - start displaying the image data on the
1254  * mipi_dsi_dcs_set_column_address() - define the column extent of the frame
1281  * mipi_dsi_dcs_set_page_address() - define the page extent of the frame
1308  * mipi_dsi_dcs_set_tear_on() - turn on the display module's Tearing Effect
1333  * mipi_dsi_dcs_set_pixel_format() - sets the pixel format for the RGB image
1357  * mipi_dsi_dcs_set_tear_scanline() - set the scanline to use as trigger for
1382  * mipi_dsi_dcs_set_display_brightness() - sets the brightness value of the
1408  * mipi_dsi_dcs_get_display_brightness() - gets the current brightness value
1424 			err = -ENODATA;  in mipi_dsi_dcs_get_display_brightness()
1434  * mipi_dsi_dcs_set_display_brightness_large() - sets the 16-bit brightness value
1457  * mipi_dsi_dcs_get_display_brightness_large() - gets the current 16-bit
1474 			err = -ENODATA;  in mipi_dsi_dcs_get_display_brightness_large()
1486  * mipi_dsi_picture_parameter_set_multi() - transmit the DSC PPS to the peripheral
1496 	struct mipi_dsi_device *dsi = ctx->dsi;  in mipi_dsi_picture_parameter_set_multi()
1497 	struct device *dev = &dsi->dev;  in mipi_dsi_picture_parameter_set_multi()
1500 	if (ctx->accum_err)  in mipi_dsi_picture_parameter_set_multi()
1505 		ctx->accum_err = ret;  in mipi_dsi_picture_parameter_set_multi()
1507 			ctx->accum_err);  in mipi_dsi_picture_parameter_set_multi()
1513  * mipi_dsi_compression_mode_ext_multi() - enable/disable DSC on the peripheral
1517  * @pps_selector: Select PPS from the table of pre-stored or uploaded PPS entries
1527 	struct mipi_dsi_device *dsi = ctx->dsi;  in mipi_dsi_compression_mode_ext_multi()
1528 	struct device *dev = &dsi->dev;  in mipi_dsi_compression_mode_ext_multi()
1531 	if (ctx->accum_err)  in mipi_dsi_compression_mode_ext_multi()
1536 		ctx->accum_err = ret;  in mipi_dsi_compression_mode_ext_multi()
1538 			ctx->accum_err);  in mipi_dsi_compression_mode_ext_multi()
1544  * mipi_dsi_compression_mode_multi() - enable/disable DSC on the peripheral
1560  * mipi_dsi_dcs_nop_multi() - send DCS NOP packet
1568 	struct mipi_dsi_device *dsi = ctx->dsi;  in mipi_dsi_dcs_nop_multi()
1569 	struct device *dev = &dsi->dev;  in mipi_dsi_dcs_nop_multi()
1572 	if (ctx->accum_err)  in mipi_dsi_dcs_nop_multi()
1577 		ctx->accum_err = ret;  in mipi_dsi_dcs_nop_multi()
1579 			ctx->accum_err);  in mipi_dsi_dcs_nop_multi()
1585  * mipi_dsi_dcs_enter_sleep_mode_multi() - send DCS ENTER_SLEEP_MODE  packet
1593 	struct mipi_dsi_device *dsi = ctx->dsi;  in mipi_dsi_dcs_enter_sleep_mode_multi()
1594 	struct device *dev = &dsi->dev;  in mipi_dsi_dcs_enter_sleep_mode_multi()
1597 	if (ctx->accum_err)  in mipi_dsi_dcs_enter_sleep_mode_multi()
1602 		ctx->accum_err = ret;  in mipi_dsi_dcs_enter_sleep_mode_multi()
1604 			ctx->accum_err);  in mipi_dsi_dcs_enter_sleep_mode_multi()
1610  * mipi_dsi_dcs_exit_sleep_mode_multi() - send DCS EXIT_SLEEP_MODE packet
1618 	struct mipi_dsi_device *dsi = ctx->dsi;  in mipi_dsi_dcs_exit_sleep_mode_multi()
1619 	struct device *dev = &dsi->dev;  in mipi_dsi_dcs_exit_sleep_mode_multi()
1622 	if (ctx->accum_err)  in mipi_dsi_dcs_exit_sleep_mode_multi()
1627 		ctx->accum_err = ret;  in mipi_dsi_dcs_exit_sleep_mode_multi()
1629 			ctx->accum_err);  in mipi_dsi_dcs_exit_sleep_mode_multi()
1635  * mipi_dsi_dcs_set_display_off_multi() - send DCS SET_DISPLAY_OFF packet
1643 	struct mipi_dsi_device *dsi = ctx->dsi;  in mipi_dsi_dcs_set_display_off_multi()
1644 	struct device *dev = &dsi->dev;  in mipi_dsi_dcs_set_display_off_multi()
1647 	if (ctx->accum_err)  in mipi_dsi_dcs_set_display_off_multi()
1652 		ctx->accum_err = ret;  in mipi_dsi_dcs_set_display_off_multi()
1654 			ctx->accum_err);  in mipi_dsi_dcs_set_display_off_multi()
1660  * mipi_dsi_dcs_set_display_on_multi() - send DCS SET_DISPLAY_ON packet
1668 	struct mipi_dsi_device *dsi = ctx->dsi;  in mipi_dsi_dcs_set_display_on_multi()
1669 	struct device *dev = &dsi->dev;  in mipi_dsi_dcs_set_display_on_multi()
1672 	if (ctx->accum_err)  in mipi_dsi_dcs_set_display_on_multi()
1677 		ctx->accum_err = ret;  in mipi_dsi_dcs_set_display_on_multi()
1679 			ctx->accum_err);  in mipi_dsi_dcs_set_display_on_multi()
1685  * mipi_dsi_dcs_set_tear_on_multi() - send DCS SET_TEAR_ON packet
1695 	struct mipi_dsi_device *dsi = ctx->dsi;  in mipi_dsi_dcs_set_tear_on_multi()
1696 	struct device *dev = &dsi->dev;  in mipi_dsi_dcs_set_tear_on_multi()
1699 	if (ctx->accum_err)  in mipi_dsi_dcs_set_tear_on_multi()
1704 		ctx->accum_err = ret;  in mipi_dsi_dcs_set_tear_on_multi()
1706 			ctx->accum_err);  in mipi_dsi_dcs_set_tear_on_multi()
1712  * mipi_dsi_turn_on_peripheral_multi() - sends a Turn On Peripheral command
1720 	struct mipi_dsi_device *dsi = ctx->dsi;  in mipi_dsi_turn_on_peripheral_multi()
1721 	struct device *dev = &dsi->dev;  in mipi_dsi_turn_on_peripheral_multi()
1724 	if (ctx->accum_err)  in mipi_dsi_turn_on_peripheral_multi()
1729 		ctx->accum_err = ret;  in mipi_dsi_turn_on_peripheral_multi()
1731 			ctx->accum_err);  in mipi_dsi_turn_on_peripheral_multi()
1737  * mipi_dsi_dcs_set_tear_off_multi() - turn off the display module's Tearing Effect
1743 	struct mipi_dsi_device *dsi = ctx->dsi;  in mipi_dsi_dcs_set_tear_off_multi()
1744 	struct device *dev = &dsi->dev;  in mipi_dsi_dcs_set_tear_off_multi()
1747 	if (ctx->accum_err)  in mipi_dsi_dcs_set_tear_off_multi()
1752 		ctx->accum_err = err;  in mipi_dsi_dcs_set_tear_off_multi()
1754 			ctx->accum_err);  in mipi_dsi_dcs_set_tear_off_multi()
1760  * mipi_dsi_dcs_soft_reset_multi() - perform a software reset of the display module
1768 	struct mipi_dsi_device *dsi = ctx->dsi;  in mipi_dsi_dcs_soft_reset_multi()
1769 	struct device *dev = &dsi->dev;  in mipi_dsi_dcs_soft_reset_multi()
1772 	if (ctx->accum_err)  in mipi_dsi_dcs_soft_reset_multi()
1777 		ctx->accum_err = ret;  in mipi_dsi_dcs_soft_reset_multi()
1779 			ctx->accum_err);  in mipi_dsi_dcs_soft_reset_multi()
1785  * mipi_dsi_dcs_set_display_brightness_multi() - sets the brightness value of
1796 	struct mipi_dsi_device *dsi = ctx->dsi;  in mipi_dsi_dcs_set_display_brightness_multi()
1797 	struct device *dev = &dsi->dev;  in mipi_dsi_dcs_set_display_brightness_multi()
1800 	if (ctx->accum_err)  in mipi_dsi_dcs_set_display_brightness_multi()
1805 		ctx->accum_err = ret;  in mipi_dsi_dcs_set_display_brightness_multi()
1807 			ctx->accum_err);  in mipi_dsi_dcs_set_display_brightness_multi()
1813  * mipi_dsi_dcs_set_pixel_format_multi() - sets the pixel format for the RGB image
1824 	struct mipi_dsi_device *dsi = ctx->dsi;  in mipi_dsi_dcs_set_pixel_format_multi()
1825 	struct device *dev = &dsi->dev;  in mipi_dsi_dcs_set_pixel_format_multi()
1828 	if (ctx->accum_err)  in mipi_dsi_dcs_set_pixel_format_multi()
1833 		ctx->accum_err = ret;  in mipi_dsi_dcs_set_pixel_format_multi()
1835 			ctx->accum_err);  in mipi_dsi_dcs_set_pixel_format_multi()
1841  * mipi_dsi_dcs_set_column_address_multi() - define the column extent of the
1853 	struct mipi_dsi_device *dsi = ctx->dsi;  in mipi_dsi_dcs_set_column_address_multi()
1854 	struct device *dev = &dsi->dev;  in mipi_dsi_dcs_set_column_address_multi()
1857 	if (ctx->accum_err)  in mipi_dsi_dcs_set_column_address_multi()
1862 		ctx->accum_err = ret;  in mipi_dsi_dcs_set_column_address_multi()
1864 			ctx->accum_err);  in mipi_dsi_dcs_set_column_address_multi()
1870  * mipi_dsi_dcs_set_page_address_multi() - define the page extent of the
1882 	struct mipi_dsi_device *dsi = ctx->dsi;  in mipi_dsi_dcs_set_page_address_multi()
1883 	struct device *dev = &dsi->dev;  in mipi_dsi_dcs_set_page_address_multi()
1886 	if (ctx->accum_err)  in mipi_dsi_dcs_set_page_address_multi()
1891 		ctx->accum_err = ret;  in mipi_dsi_dcs_set_page_address_multi()
1893 			ctx->accum_err);  in mipi_dsi_dcs_set_page_address_multi()
1899  * mipi_dsi_dcs_set_tear_scanline_multi() - set the scanline to use as trigger for
1910 	struct mipi_dsi_device *dsi = ctx->dsi;  in mipi_dsi_dcs_set_tear_scanline_multi()
1911 	struct device *dev = &dsi->dev;  in mipi_dsi_dcs_set_tear_scanline_multi()
1914 	if (ctx->accum_err)  in mipi_dsi_dcs_set_tear_scanline_multi()
1919 		ctx->accum_err = ret;  in mipi_dsi_dcs_set_tear_scanline_multi()
1921 			ctx->accum_err);  in mipi_dsi_dcs_set_tear_scanline_multi()
1928 	struct mipi_dsi_driver *drv = to_mipi_dsi_driver(dev->driver);  in mipi_dsi_drv_probe()
1931 	return drv->probe(dsi);  in mipi_dsi_drv_probe()
1936 	struct mipi_dsi_driver *drv = to_mipi_dsi_driver(dev->driver);  in mipi_dsi_drv_remove()
1939 	drv->remove(dsi);  in mipi_dsi_drv_remove()
1946 	struct mipi_dsi_driver *drv = to_mipi_dsi_driver(dev->driver);  in mipi_dsi_drv_shutdown()
1949 	drv->shutdown(dsi);  in mipi_dsi_drv_shutdown()
1953  * mipi_dsi_driver_register_full() - register a driver for DSI devices
1962 	drv->driver.bus = &mipi_dsi_bus_type;  in mipi_dsi_driver_register_full()
1963 	drv->driver.owner = owner;  in mipi_dsi_driver_register_full()
1965 	if (drv->probe)  in mipi_dsi_driver_register_full()
1966 		drv->driver.probe = mipi_dsi_drv_probe;  in mipi_dsi_driver_register_full()
1967 	if (drv->remove)  in mipi_dsi_driver_register_full()
1968 		drv->driver.remove = mipi_dsi_drv_remove;  in mipi_dsi_driver_register_full()
1969 	if (drv->shutdown)  in mipi_dsi_driver_register_full()
1970 		drv->driver.shutdown = mipi_dsi_drv_shutdown;  in mipi_dsi_driver_register_full()
1972 	return driver_register(&drv->driver);  in mipi_dsi_driver_register_full()
1977  * mipi_dsi_driver_unregister() - unregister a driver for DSI devices
1984 	driver_unregister(&drv->driver);  in mipi_dsi_driver_unregister()