[PATCH v2 0/3] drm/panel: novatek-nt35560: Fix bug and clean up

[Brigham Campbell]

Fix bug in novatek-nt35560 driver's nt35560_set_brightness() which
causes the driver to incorrectly report that it "failed to disable
display backlight".

Add mipi_dsi_dcs_read_multi() to drm_mipi_dsi.c for improved error
handling in drivers which use mipi_dsi_dcs_read() multiple times in a
row. It seems like although this feature may be useful for the nt35560,
we don't expect many drivers to use it. Once again, I am happy to remove
this change if it's not worth maintaining.

Add mipi_dsi_dcs_write_var_seq_multi() and
mipi_dsi_generic_write_var_seq_multi() to drm_mipi_dsi.h to allow
drivers to more conveniently construct MIPI payloads at runtime.

Clean up novatek-nt35560 driver to use "multi" variants of MIPI
functions which promote cleaner code.

Brigham Campbell (3):
  drm/panel: novatek-nt35560: Fix invalid return value
  drm: Add MIPI support function and macros
  drm/panel: novatek-nt35560: Clean up driver

 drivers/gpu/drm/drm_mipi_dsi.c                |  37 ++++
 drivers/gpu/drm/panel/panel-novatek-nt35560.c | 198 ++++++------------
 include/drm/drm_mipi_dsi.h                    |  35 ++++
 3 files changed, 132 insertions(+), 138 deletions(-)


base-commit: 33f8f321e7aa7715ce19560801ee5223ba8b9a7d
-- 
2.50.1