[PATCH v5 0/2] drm: atmel-hlcdc: clut support

[Peter Rosin]

Hi!

This series adds support for an 8-bit clut mode in the atmel-hlcdc
driver.

Changes since v4:

- Added .clut_offset for overlay2 at 0xe00 for sama5d4 (unconfirmed if 0xe00
  is the correct offset, but I'll eat my hat if it's not there). The sama5d4
  overlay2 is indeed there, it is just AWOL in the current datasheet.
- Added Acked-by from Daniel on patch 2/2.

Changes since v3:

- Dropped ugly code (patches 2/3 and 3/3) for legacy fbdev interaction.
- Slit out the .set_property change to a patch of its own.

Changes since v2:

- Fix mapping to the clut registers.

Changes since v1:

- Move the clut update from atmel_hlcdc_crtc_mode_valid to
  atmel_hlcdc_plane_atomic_update.
- Add default .gamma_set helper (drm_atomic_helper_legacy_gamma_set).
- Don't keep a spare copy of the clut, reuse gamma_store instead.
- Don't try to synchronize the legacy fb clut with the drm clut.

Cheers,
peda

Peter Rosin (2):
  drm: atmel-hlcdc: add missing .set_property helper to the crtc
  drm: atmel-hlcdc: add support for 8-bit color lookup table mode

 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c  |  5 +++++
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c    | 14 ++++++++++++
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h    | 16 ++++++++++++++
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 29 +++++++++++++++++++++++++
 4 files changed, 64 insertions(+)

-- 
2.1.4