drm/amd/pm: Disable MCLK switching on SI at high pixel clocks

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[ Upstream commit 5c05bcf6ae ]

On various SI GPUs, a flickering can be observed near the bottom
edge of the screen when using a single 4K 60Hz monitor over DP.
Disabling MCLK switching works around this problem.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Timur Kristóf 2025-09-26 20:26:12 +02:00 • committed by Greg Kroah-Hartman

parent eaf12bffd7

commit d033e8cf4e

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drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c

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