drm/radeon: Setup HDMI_CONTROL for hdmi deep color gcp's (v2)
authorAlex Deucher <alexander.deucher@amd.com>
Wed, 28 May 2014 23:14:36 +0000 (19:14 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Mon, 2 Jun 2014 22:37:33 +0000 (18:37 -0400)
Program HDMI_CONTROL to send general control packets
for hdmi deep color mode signalling at every video
frame if bpc > 8.

This is only supported on evergreen / DCE-4 and later.

v2: rebase

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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