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drm/amd/display: Actually do immediate vblank disable

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[Why]

The `vblank_config.offdelay` field follows the same semantics as the
`drm_vblank_offdelay` parameter. Setting it to 0 will never disable
vblank.

[How]

Set `offdelay` to a positive number.

Fixes: e45b6716de ("drm/amd/display: use a more lax vblank enable policy for DCN35+")
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Leo Li 2025-03-11 09:43:38 -04:00 committed by Alex Deucher
parent 8058061ed9
commit 704bc361e3
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@ -8747,6 +8747,8 @@ static void manage_dm_interrupts(struct amdgpu_device *adev,
config.offdelay_ms = offdelay ?: 30;
} else {
/* offdelay_ms = 0 will never disable vblank */
config.offdelay_ms = 1;
config.disable_immediate = true;
}