drm/amd/display: Wait for double buffer update on ODM changes

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[WHAT & HOW]
We must wait for ODM double buffer updates to complete
before exiting the pipe update sequence or we may reduce
DISPCLK and hit some transient underflow (pixel rate is
reduced before the pipes have ODM enabled).

Reviewed-by: Samson Tam <samson.tam@amd.com>
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Hung <alex.hung@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>

...

This commit is contained in:

Alvin Lee 2024-06-10 12:34:25 -04:00 • committed by Alex Deucher

parent 7210195f1b

commit 4228900a64

7 changed files with 43 additions and 1 deletions

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23

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

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1

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

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3

drivers/gpu/drm/amd/display/dc/optc/dcn10/dcn10_optc.h

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13

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

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2

drivers/gpu/drm/amd/display/dc/optc/dcn32/dcn32_optc.h

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1

drivers/gpu/drm/amd/display/dc/optc/dcn401/dcn401_optc.c

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1

drivers/gpu/drm/amd/display/dc/optc/dcn401/dcn401_optc.h

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