drm/amd/display: add a func to disable accelerated mode

Browse source

[Why]
When driver disabled, we driver force the YCbCr420 to RGB,
which means some register will be changed, such as
RDPCS_PHY_DP_MPLLB_TX_CLK_DIV changed from 1 to 0
When driver re-enabled, OS will Set Mode YCbCr420 again,
which means the register RDPCS_PHY_DP_MPLLB_TX_CLK_DIV
should to be 1 again, but dmub fw can’t update the
register to 1 due to the mpll is not off

[How]
Adds an interface to disable accelerated mode bit,
which allows DM to decide to call during driver
disable/unload scenarios.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Yao Wang1 <Yao.Wang1@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Solomon Chiu <solomon.chiu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Yao Wang1 2021-03-09 17:51:58 +08:00 • committed by Alex Deucher

parent 443dfba024

commit 1c5ea40c2a

5 changed files with 29 additions and 4 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

5

drivers/gpu/drm/amd/display/dc/bios/bios_parser_helper.c

View file

2

drivers/gpu/drm/amd/display/dc/bios/bios_parser_helper.h

View file

18

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

View file

6

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

View file

2

drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c

View file