[PATCH 0/4] drm: rcar-du: Update to SoC manual revision 1.00

[Jacopo Mondi]

Hello Laurent,
   Revision 1.00 has brought several updates on how to handle some registers
in the DU. In particular

- ESCR cannot be written for channels with a DPLL
- OTAR cannot be written for channels without a digital output pad
- routing superimposition processor output to pincontrollers through DORCR2
  register cannot be performed for channels of group 1
- The plane super-imposition register PnMR can be written to groups with more
  than 1 channel.

Patches applied on top of your latest drm/du/next branch.

Tested on Salvator-X M3-W with VGA and HDMI output.
Tested on Salvator-XS M3-N with VGA and HDMI output.
No visible regression, but if you have ideas on how to better verify this
please let me know.

Thanks
   j

Jacopo Mondi (4):
  drm: rcar-du: Do not write ESCR for DPLL channels
  drm: rcar-du: Write OTAR for DPAD channels only
  drm: rcar-du: Fix handling of DORCR for group 1
  drm: rcar-du: Fix handling of PnMR register

 drivers/gpu/drm/rcar-du/rcar_du_crtc.c  | 18 +++++++++++-------
 drivers/gpu/drm/rcar-du/rcar_du_group.c | 19 ++++++++++++++++---
 drivers/gpu/drm/rcar-du/rcar_du_plane.c | 13 +++++++++++--
 3 files changed, 38 insertions(+), 12 deletions(-)

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2.7.4