drm/amd/display: Increase DCN35 SR enter/exit latency

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[ Upstream commit 318917e1d8 ]

[Why & How]

On Framework laptops with DDR5 modules, underflow can be observed.
It's unclear why it only occurs on specific desktop contents. However,
increasing enter/exit latencies by 3us seems to resolve it.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4463
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Leo Li 2025-11-03 11:14:59 -05:00 • committed by Sasha Levin

parent 5cfc202825

commit 8f08df3267

2 changed files with 10 additions and 10 deletions

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16

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c

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4

drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c

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