Revert "drm/amd/display: Remove v_startup workaround for dcn3+"

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This reverts commit 3a31e8b89b.

We still need to call dcn20_adjust_freesync_v_startup() for older DCN3+
ASICs. Otherwise, it can cause DP to HDMI 2.1 PCONs to fail to light up.

Cc: stable@vger.kernel.org
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2809
Reviewed-by: Fangzhi Zuo <jerry.zuo@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Hamza Mahfooz 2023-08-31 15:17:14 -04:00 • committed by Alex Deucher

parent 173df1eaa8

commit 63461ea3fb

1 changed files with 4 additions and 20 deletions

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drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c

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