249 		int ret;						\
250 		ret = mipi_dsi_dcs_write_buffer(dsi, b, ARRAY_SIZE(b));	\
251 		if (ret < 0)						\
252 			return ret;					\
258 	int ret;  in ltk050h3146w_init_sequence()  local
314 	ret = mipi_dsi_dcs_set_tear_on(dsi, 1);  in ltk050h3146w_init_sequence()
315 	if (ret < 0) {  in ltk050h3146w_init_sequence()
316 		dev_err(ctx->dev, "failed to set tear on: %d\n", ret);  in ltk050h3146w_init_sequence()
317 		return ret;  in ltk050h3146w_init_sequence()
357 	int i, ret;  in ltk050h3146w_a2_write_page()  local
359 	ret = ltk050h3146w_a2_select_page(ctx, page);  in ltk050h3146w_a2_write_page()
360 	if (ret < 0) {  in ltk050h3146w_a2_write_page()
361 		dev_err(ctx->dev, "failed to select page %d: %d\n", page, ret);  in ltk050h3146w_a2_write_page()
362 		return ret;  in ltk050h3146w_a2_write_page()
366 		ret = mipi_dsi_generic_write(dsi, &cmds[i],  in ltk050h3146w_a2_write_page()
368 		if (ret < 0) {  in ltk050h3146w_a2_write_page()
369 			dev_err(ctx->dev, "failed to write page %d init cmds: %d\n", page, ret);  in ltk050h3146w_a2_write_page()
370 			return ret;  in ltk050h3146w_a2_write_page()
380 	int ret;  in ltk050h3146w_a2_init_sequence()  local
386 	ret = ltk050h3146w_a2_write_page(ctx, 3, page3_cmds,  in ltk050h3146w_a2_init_sequence()
388 	if (ret < 0)  in ltk050h3146w_a2_init_sequence()
389 		return ret;  in ltk050h3146w_a2_init_sequence()
391 	ret = ltk050h3146w_a2_write_page(ctx, 4, page4_cmds,  in ltk050h3146w_a2_init_sequence()
393 	if (ret < 0)  in ltk050h3146w_a2_init_sequence()
394 		return ret;  in ltk050h3146w_a2_init_sequence()
396 	ret = ltk050h3146w_a2_write_page(ctx, 1, page1_cmds,  in ltk050h3146w_a2_init_sequence()
398 	if (ret < 0)  in ltk050h3146w_a2_init_sequence()
399 		return ret;  in ltk050h3146w_a2_init_sequence()
401 	ret = ltk050h3146w_a2_select_page(ctx, 0);  in ltk050h3146w_a2_init_sequence()
402 	if (ret < 0) {  in ltk050h3146w_a2_init_sequence()
403 		dev_err(ctx->dev, "failed to select page 0: %d\n", ret);  in ltk050h3146w_a2_init_sequence()
404 		return ret;  in ltk050h3146w_a2_init_sequence()
408 	ret = mipi_dsi_dcs_set_tear_on(dsi, 0);  in ltk050h3146w_a2_init_sequence()
409 	if (ret < 0) {  in ltk050h3146w_a2_init_sequence()
410 		dev_err(ctx->dev, "failed to set tear on: %d\n", ret);  in ltk050h3146w_a2_init_sequence()
411 		return ret;  in ltk050h3146w_a2_init_sequence()
442 	int ret;  in ltk050h3146w_unprepare()  local
447 	ret = mipi_dsi_dcs_set_display_off(dsi);  in ltk050h3146w_unprepare()
448 	if (ret < 0) {  in ltk050h3146w_unprepare()
449 		dev_err(ctx->dev, "failed to set display off: %d\n", ret);  in ltk050h3146w_unprepare()
450 		return ret;  in ltk050h3146w_unprepare()
454 	if (ret < 0) {  in ltk050h3146w_unprepare()
455 		dev_err(ctx->dev, "failed to enter sleep mode: %d\n", ret);  in ltk050h3146w_unprepare()
456 		return ret;  in ltk050h3146w_unprepare()
471 	int ret;  in ltk050h3146w_prepare()  local
477 	ret = regulator_enable(ctx->vci);  in ltk050h3146w_prepare()
478 	if (ret < 0) {  in ltk050h3146w_prepare()
479 		dev_err(ctx->dev, "Failed to enable vci supply: %d\n", ret);  in ltk050h3146w_prepare()
480 		return ret;  in ltk050h3146w_prepare()
482 	ret = regulator_enable(ctx->iovcc);  in ltk050h3146w_prepare()
483 	if (ret < 0) {  in ltk050h3146w_prepare()
484 		dev_err(ctx->dev, "Failed to enable iovcc supply: %d\n", ret);  in ltk050h3146w_prepare()
493 	ret = ctx->panel_desc->init(ctx);  in ltk050h3146w_prepare()
494 	if (ret < 0) {  in ltk050h3146w_prepare()
495 		dev_err(ctx->dev, "Panel init sequence failed: %d\n", ret);  in ltk050h3146w_prepare()
499 	ret = mipi_dsi_dcs_exit_sleep_mode(dsi);  in ltk050h3146w_prepare()
500 	if (ret < 0) {  in ltk050h3146w_prepare()
501 		dev_err(ctx->dev, "Failed to exit sleep mode: %d\n", ret);  in ltk050h3146w_prepare()
508 	ret = mipi_dsi_dcs_set_display_on(dsi);  in ltk050h3146w_prepare()
509 	if (ret < 0) {  in ltk050h3146w_prepare()
510 		dev_err(ctx->dev, "Failed to set display on: %d\n", ret);  in ltk050h3146w_prepare()
524 	return ret;  in ltk050h3146w_prepare()
557 	int ret;  in ltk050h3146w_probe()  local
575 		ret = PTR_ERR(ctx->vci);  in ltk050h3146w_probe()
576 		if (ret != -EPROBE_DEFER)  in ltk050h3146w_probe()
577 			dev_err(dev, "Failed to request vci regulator: %d\n", ret);  in ltk050h3146w_probe()
578 		return ret;  in ltk050h3146w_probe()
583 		ret = PTR_ERR(ctx->iovcc);  in ltk050h3146w_probe()
584 		if (ret != -EPROBE_DEFER)  in ltk050h3146w_probe()
585 			dev_err(dev, "Failed to request iovcc regulator: %d\n", ret);  in ltk050h3146w_probe()
586 		return ret;  in ltk050h3146w_probe()
601 	ret = drm_panel_of_backlight(&ctx->panel);  in ltk050h3146w_probe()
602 	if (ret)  in ltk050h3146w_probe()
603 		return ret;  in ltk050h3146w_probe()
607 	ret = mipi_dsi_attach(dsi);  in ltk050h3146w_probe()
608 	if (ret < 0) {  in ltk050h3146w_probe()
609 		dev_err(dev, "mipi_dsi_attach failed: %d\n", ret);  in ltk050h3146w_probe()
611 		return ret;  in ltk050h3146w_probe()
620 	int ret;  in ltk050h3146w_shutdown()  local
622 	ret = drm_panel_unprepare(&ctx->panel);  in ltk050h3146w_shutdown()
623 	if (ret < 0)  in ltk050h3146w_shutdown()
624 		dev_err(&dsi->dev, "Failed to unprepare panel: %d\n", ret);  in ltk050h3146w_shutdown()
626 	ret = drm_panel_disable(&ctx->panel);  in ltk050h3146w_shutdown()
627 	if (ret < 0)  in ltk050h3146w_shutdown()
628 		dev_err(&dsi->dev, "Failed to disable panel: %d\n", ret);  in ltk050h3146w_shutdown()
634 	int ret;  in ltk050h3146w_remove()  local
638 	ret = mipi_dsi_detach(dsi);  in ltk050h3146w_remove()
639 	if (ret < 0)  in ltk050h3146w_remove()
640 		dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);  in ltk050h3146w_remove()