This is a note to let you know that I've just added the patch titled
drm/i915/dp: fix the Adaptive sync Operation mode for SDP
to the 6.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-i915-dp-fix-the-adaptive-sync-operation-mode-for.patch
and it can be found in the queue-6.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit c2990ac2b24b3c5afc53c58d2cbf9896d5c1c95d
Author: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>
Date: Thu Jan 30 10:46:06 2025 +0530
drm/i915/dp: fix the Adaptive sync Operation mode for SDP
[ Upstream commit 4466302262b38f5e6c65325035b4036a42efc934 ]
Currently we support Adaptive sync operation mode with dynamic frame
rate, but instead the operation mode with fixed rate is set.
This was initially set correctly in the earlier version of changes but
later got changed, while defining a macro for the same.
Fixes: a5bd5991cb8a ("drm/i915/display: Compute AS SDP parameters")
Cc: Mitul Golani <mitulkumar.ajitkumar.golani@xxxxxxxxx>
Cc: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx>
Reviewed-by: Mitul Golani <mitulkumar.ajitkumar.golani@xxxxxxxxx>
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20250130051609.1796524-4-mitulkumar.ajitkumar.golani@xxxxxxxxx
(cherry picked from commit c5806862543ff6c2ad242409fcdf0667eac26dae)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 90fa73575feb1..7befd260f5949 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -2738,7 +2738,6 @@ static void intel_dp_compute_as_sdp(struct intel_dp *intel_dp,
crtc_state->infoframes.enable |= intel_hdmi_infoframe_enable(DP_SDP_ADAPTIVE_SYNC);
- /* Currently only DP_AS_SDP_AVT_FIXED_VTOTAL mode supported */
as_sdp->sdp_type = DP_SDP_ADAPTIVE_SYNC;
as_sdp->length = 0x9;
as_sdp->duration_incr_ms = 0;
@@ -2750,7 +2749,7 @@ static void intel_dp_compute_as_sdp(struct intel_dp *intel_dp,
as_sdp->target_rr = drm_mode_vrefresh(adjusted_mode);
as_sdp->target_rr_divider = true;
} else {
- as_sdp->mode = DP_AS_SDP_AVT_FIXED_VTOTAL;
+ as_sdp->mode = DP_AS_SDP_AVT_DYNAMIC_VTOTAL;
as_sdp->vtotal = adjusted_mode->vtotal;
as_sdp->target_rr = 0;
}
