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drm/amd/pm: Disable MCLK switching on SI at high pixel clocks
authorTimur Kristóf <timur.kristof@gmail.com>
Fri, 26 Sep 2025 18:26:12 +0000 (20:26 +0200)
committerAlex Deucher <alexander.deucher@amd.com>
Mon, 13 Oct 2025 18:14:14 +0000 (14:14 -0400)
commit5c05bcf6ae7732da1bd4dc1958d527b5f07f216a
treeb56e989aef61dffa37f739ef9cdf237c9c946e6ctree | snapshot
parent9858ea4c29c283f0a8a3cdbb42108d464ece90a8commit | diff
drm/amd/pm: Disable MCLK switching on SI at high pixel clocks

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>
drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git