6.12-stable review patch. If anyone has any objections, please let me know.
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From: Leo Li sunpeng.li@amd.com
commit 704bc361e3a4ead1c0eb40acc255b636b788dc89 upstream.
[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: e45b6716de4b ("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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -8473,6 +8473,8 @@ static void manage_dm_interrupts(struct
config.offdelay_ms = offdelay ?: 30; } else { + /* offdelay_ms = 0 will never disable vblank */ + config.offdelay_ms = 1; config.disable_immediate = true; }