drm/amd/display: Add helper for blanking all dp displays

[Why & How]
The codes to blank all dp display have been called many times,
so add a helper in dc_link to make it more concise.

Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Solomon Chiu <solomon.chiu@amd.com>
Signed-off-by: Leo (Hanghong) Ma <hanghong.ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Leo (Hanghong) Ma 2021-10-01 22:36:18 +08:00 • committed by Alex Deucher
commit 1445d967fb
6 changed files with 59 additions and 130 deletions