drm/amd/display: Fix Subvp phantom pipe transition

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[Description]
- When transitioning a pipe in use (non-phantom) to become
  a phantom pipe, we must fully disable the pipe first before
  doing any phantom pipe programming
- Move phantom OTG enablement to after "regular" front-end
  programming sequence (including wait for vupdate)
- If a pipe is being transitioned into a phantom pipe,
  fully disable it first

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@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>

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This commit is contained in:

Alvin Lee 2022-11-04 11:06:42 -04:00 • committed by Alex Deucher

parent dd9f82c023

commit e267f5e697

6 changed files with 87 additions and 36 deletions

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54

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

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38

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c

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27

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c

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2

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.h

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1

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_init.c

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1

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

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