drm/amd/display: add dmcub check on RENOIR
authorAaron Ma <aaron.ma@canonical.com>
Wed, 8 Jul 2020 08:16:22 +0000 (04:16 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Thu, 9 Jul 2020 18:42:37 +0000 (14:42 -0400)
commit3b2e973dff59d88bee1d814ddf8762a24fc02b60
treed431bfa4430bae2fa5dfddc681275bf709b76476
parentc564b8601ae917086751d90f464d5f19d731ece7
drm/amd/display: add dmcub check on RENOIR

RENOIR loads dmub fw not dmcu, check dmcu only will prevent loading iram,
it breaks backlight control.

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=208277
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c