drm/armada: add support for setting gamma

Add support for setting gamma through both the legacy interfaces and
the atomic interfaces.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Russell King 2018-07-01 15:46:26 +01:00
commit d0d765dec6
3 changed files with 68 additions and 1 deletions