drm/amd/display: filter out invalid bits in pipe_fuses
authorSamson Tam <Samson.Tam@amd.com>
Wed, 19 Apr 2023 22:17:14 +0000 (18:17 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Fri, 9 Jun 2023 13:27:45 +0000 (09:27 -0400)
commitf835a571ec998b83c165022795f9385f9335f108
treef9411bd1c0bb645448191942e1501d852679d8dd
parent4dfa60aede755814dcfbc9a05008265d827cc98d
drm/amd/display: filter out invalid bits in pipe_fuses

[Why]
Reading pipe_fuses from register may have invalid bits set, which may
 affect the num_pipes erroneously.

[How]
Add read_pipes_fuses() call and filter bits based on expected number
 of pipes.

Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Samson Tam <Samson.Tam@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c