FAILED: patch "[PATCH] drm/i915/mst: Reject FEC+MST on ICL" failed to apply to 6.6-stable tree

The patch below does not apply to the 6.6-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y
git checkout FETCH_HEAD
git cherry-pick -x 99f855082f228cdcecd6ab768d3b8b505e0eb028
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<[email protected]>' --in-reply-to '2024040803-tackling-bogged-527d@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..

Possible dependencies:

99f855082f22 ("drm/i915/mst: Reject FEC+MST on ICL") 126f94e87e79 ("drm/i915: Fix FEC pipe A vs. DDI A mixup")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 99f855082f228cdcecd6ab768d3b8b505e0eb028 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <[email protected]>
Date: Tue, 2 Apr 2024 16:51:47 +0300
Subject: [PATCH] drm/i915/mst: Reject FEC+MST on ICL
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

ICL supposedly doesn't support FEC on MST. Reject it.

index 36afbb68d87d..abd62bebc46d 100644
@@ -1422,7 +1422,8 @@ static bool intel_dp_source_supports_fec(struct intel_dp *intel_dp,
 	if (DISPLAY_VER(dev_priv) >= 12)
 		return true;
 
-	if (DISPLAY_VER(dev_priv) == 11 && encoder->port != PORT_A)
+	if (DISPLAY_VER(dev_priv) == 11 && encoder->port != PORT_A &&
+	    !intel_crtc_has_type(pipe_config, INTEL_OUTPUT_DP_MST))
 		return true;
 
 	return false;