tree fb4511c9ae47816199ddd003328105204e034d59
parent 2fcb206654e8b3826424ffa7ef65bd74cc65ff16
author Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> 1485507750 +0200
committer Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> 1485764713 +0200

drm/i915/glk: Program pipe gamma and degamma tables

The gamma tables in Geminilake were changed. There is no split-gamma
mode. Instead, there is a dedicated degamma table that is enabled
whenever pipe CSC is enabled.

The dedicated gamma table has 16 bit precision but doesn't support
separate channels. Since that doesn't match the per-channel format of
the degamma LUT property, for now only a linear table is loaded and the
property ignored.

v2: Remove empty line. (Ville)
    Reuse broadwell code. (Ville)

v3: Don't write PIPE_CSC_MODE. (Ville)

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170127090230.20302-1-ander.conselvan.de.oliveira@intel.com