419 	ssize_t err;  in mipi_dsi_dcs_write()  local
438 	err = mipi_dsi_dcs_write_buffer(dsi, tx, size);  in mipi_dsi_dcs_write()
443 	return err;  in mipi_dsi_dcs_write()
477 	ssize_t err;  in mipi_dsi_dcs_nop()  local
479 	err = mipi_dsi_dcs_write(dsi, MIPI_DCS_NOP, NULL, 0);  in mipi_dsi_dcs_nop()
480 	if (err < 0)  in mipi_dsi_dcs_nop()
481 		return err;  in mipi_dsi_dcs_nop()
494 	ssize_t err;  in mipi_dsi_dcs_soft_reset()  local
496 	err = mipi_dsi_dcs_write(dsi, MIPI_DCS_SOFT_RESET, NULL, 0);  in mipi_dsi_dcs_soft_reset()
497 	if (err < 0)  in mipi_dsi_dcs_soft_reset()
498 		return err;  in mipi_dsi_dcs_soft_reset()
513 	ssize_t err;  in mipi_dsi_dcs_get_power_mode()  local
515 	err = mipi_dsi_dcs_read(dsi, MIPI_DCS_GET_POWER_MODE, mode,  in mipi_dsi_dcs_get_power_mode()
517 	if (err <= 0) {  in mipi_dsi_dcs_get_power_mode()
518 		if (err == 0)  in mipi_dsi_dcs_get_power_mode()
519 			err = -ENODATA;  in mipi_dsi_dcs_get_power_mode()
521 		return err;  in mipi_dsi_dcs_get_power_mode()
537 	ssize_t err;  in mipi_dsi_dcs_get_pixel_format()  local
539 	err = mipi_dsi_dcs_read(dsi, MIPI_DCS_GET_PIXEL_FORMAT, format,  in mipi_dsi_dcs_get_pixel_format()
541 	if (err <= 0) {  in mipi_dsi_dcs_get_pixel_format()
542 		if (err == 0)  in mipi_dsi_dcs_get_pixel_format()
543 			err = -ENODATA;  in mipi_dsi_dcs_get_pixel_format()
545 		return err;  in mipi_dsi_dcs_get_pixel_format()
560 	ssize_t err;  in mipi_dsi_dcs_enter_sleep_mode()  local
562 	err = mipi_dsi_dcs_write(dsi, MIPI_DCS_ENTER_SLEEP_MODE, NULL, 0);  in mipi_dsi_dcs_enter_sleep_mode()
563 	if (err < 0)  in mipi_dsi_dcs_enter_sleep_mode()
564 		return err;  in mipi_dsi_dcs_enter_sleep_mode()
578 	ssize_t err;  in mipi_dsi_dcs_exit_sleep_mode()  local
580 	err = mipi_dsi_dcs_write(dsi, MIPI_DCS_EXIT_SLEEP_MODE, NULL, 0);  in mipi_dsi_dcs_exit_sleep_mode()
581 	if (err < 0)  in mipi_dsi_dcs_exit_sleep_mode()
582 		return err;  in mipi_dsi_dcs_exit_sleep_mode()
596 	ssize_t err;  in mipi_dsi_dcs_set_display_off()  local
598 	err = mipi_dsi_dcs_write(dsi, MIPI_DCS_SET_DISPLAY_OFF, NULL, 0);  in mipi_dsi_dcs_set_display_off()
599 	if (err < 0)  in mipi_dsi_dcs_set_display_off()
600 		return err;  in mipi_dsi_dcs_set_display_off()
614 	ssize_t err;  in mipi_dsi_dcs_set_display_on()  local
616 	err = mipi_dsi_dcs_write(dsi, MIPI_DCS_SET_DISPLAY_ON, NULL, 0);  in mipi_dsi_dcs_set_display_on()
617 	if (err < 0)  in mipi_dsi_dcs_set_display_on()
618 		return err;  in mipi_dsi_dcs_set_display_on()
636 	ssize_t err;  in mipi_dsi_dcs_set_column_address()  local
638 	err = mipi_dsi_dcs_write(dsi, MIPI_DCS_SET_COLUMN_ADDRESS, payload,  in mipi_dsi_dcs_set_column_address()
640 	if (err < 0)  in mipi_dsi_dcs_set_column_address()
641 		return err;  in mipi_dsi_dcs_set_column_address()
659 	ssize_t err;  in mipi_dsi_dcs_set_page_address()  local
661 	err = mipi_dsi_dcs_write(dsi, MIPI_DCS_SET_PAGE_ADDRESS, payload,  in mipi_dsi_dcs_set_page_address()
663 	if (err < 0)  in mipi_dsi_dcs_set_page_address()
664 		return err;  in mipi_dsi_dcs_set_page_address()
678 	ssize_t err;  in mipi_dsi_dcs_set_tear_off()  local
680 	err = mipi_dsi_dcs_write(dsi, MIPI_DCS_SET_TEAR_OFF, NULL, 0);  in mipi_dsi_dcs_set_tear_off()
681 	if (err < 0)  in mipi_dsi_dcs_set_tear_off()
682 		return err;  in mipi_dsi_dcs_set_tear_off()
699 	ssize_t err;  in mipi_dsi_dcs_set_tear_on()  local
701 	err = mipi_dsi_dcs_write(dsi, MIPI_DCS_SET_TEAR_ON, &value,  in mipi_dsi_dcs_set_tear_on()
703 	if (err < 0)  in mipi_dsi_dcs_set_tear_on()
704 		return err;  in mipi_dsi_dcs_set_tear_on()
719 	ssize_t err;  in mipi_dsi_dcs_set_pixel_format()  local
721 	err = mipi_dsi_dcs_write(dsi, MIPI_DCS_SET_PIXEL_FORMAT, &format,  in mipi_dsi_dcs_set_pixel_format()
723 	if (err < 0)  in mipi_dsi_dcs_set_pixel_format()
724 		return err;  in mipi_dsi_dcs_set_pixel_format()
741 	ssize_t err;  in mipi_dsi_dcs_set_tear_scanline()  local
743 	err = mipi_dsi_generic_write(dsi, payload, sizeof(payload));  in mipi_dsi_dcs_set_tear_scanline()
744 	if (err < 0)  in mipi_dsi_dcs_set_tear_scanline()
745 		return err;  in mipi_dsi_dcs_set_tear_scanline()
762 	ssize_t err;  in mipi_dsi_dcs_set_display_brightness()  local
764 	err = mipi_dsi_dcs_write(dsi, MIPI_DCS_SET_DISPLAY_BRIGHTNESS,  in mipi_dsi_dcs_set_display_brightness()
766 	if (err < 0)  in mipi_dsi_dcs_set_display_brightness()
767 		return err;  in mipi_dsi_dcs_set_display_brightness()
783 	ssize_t err;  in mipi_dsi_dcs_get_display_brightness()  local
785 	err = mipi_dsi_dcs_read(dsi, MIPI_DCS_GET_DISPLAY_BRIGHTNESS,  in mipi_dsi_dcs_get_display_brightness()
787 	if (err <= 0) {  in mipi_dsi_dcs_get_display_brightness()
788 		if (err == 0)  in mipi_dsi_dcs_get_display_brightness()
789 			err = -ENODATA;  in mipi_dsi_dcs_get_display_brightness()
791 		return err;  in mipi_dsi_dcs_get_display_brightness()