From: jsg <jsg@openbsd.org>
Date: Fri, 4 Aug 2023 08:24:05 +0000 (+0000)
Subject: drm/amd/display: Check if link state is valid
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=88b13db6bf7e40d5a94f21d15fb2bd7da2142a03;p=openbsd

drm/amd/display: Check if link state is valid

From Rodrigo Siqueira
810329d3d41890e49d75cde006bf3ddf1ccebb9a in linux-6.1.y/6.1.43
03ce7b387e8b0f4a1dc97a878545bdf7c7f23251 in mainline linux
---

diff --git a/sys/dev/pci/drm/amd/display/dc/core/amdgpu_dc.c b/sys/dev/pci/drm/amd/display/dc/core/amdgpu_dc.c
index cca01434441..beb2d7f103c 100644
--- a/sys/dev/pci/drm/amd/display/dc/core/amdgpu_dc.c
+++ b/sys/dev/pci/drm/amd/display/dc/core/amdgpu_dc.c
@@ -1517,6 +1517,8 @@ static bool context_changed(
 	for (i = 0; i < dc->current_state->stream_count; i++) {
 		if (dc->current_state->streams[i] != context->streams[i])
 			return true;
+		if (!context->streams[i]->link->link_state_valid)
+			return true;
 	}
 
 	return false;