drm/amd/display: Disable phantom OTG after enable for plane disable

Browse source

commit dc55b106ad upstream

[Description]
- Need to disable phantom OTG after it's enabled
  in order to restore it to it's original state.
- If it's enabled and then an MCLK switch comes in
  we may not prefetch the correct data since the phantom
  OTG could already be in the middle of the frame.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Alvin Lee 2023-08-11 16:07:05 -05:00 • committed by Greg Kroah-Hartman

parent 9caac2a9f6

commit e61f0ad736

3 changed files with 22 additions and 1 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

14

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

View file

8

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.c

View file

1

drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h

View file