drm/amd/display: Fix entry into transient encoder assignment mode.

Browse source

[Why]
In some scenarios it is possible for the encoder assignment module to be
set to "transient" mode even though there are no new encoder
assignments.

This can lead to incorrect results when querying encoder assignment,
which in turn can cause incorrect displays to be manipulated.

[How]
Only allow encoder assignment to be in transient mode of operation when
there are valid new encoder assignments.

Reviewed-by: Meenakshikumar Somasundaram <Meenakshikumar.Somasundaram@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Jimmy Kizito <Jimmy.Kizito@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Jimmy Kizito 2022-05-17 13:31:03 -04:00 • committed by Alex Deucher

parent d4965c53b9

commit 6b6d12b6ff

5 changed files with 69 additions and 8 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

17

drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c

View file

45

drivers/gpu/drm/amd/display/dc/core/dc_link_enc_cfg.c

View file

6

drivers/gpu/drm/amd/display/dc/dcn31/dcn31_dio_link_encoder.c

View file

2

drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hwseq.c

View file

7

drivers/gpu/drm/amd/display/dc/inc/link_enc_cfg.h

View file