1 files changed, 30 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/files/0535-drm-amd-dal-Reset-DPCD-sink-count-on-disconnect.patch b/common/recipes-kernel/linux/files/0535-drm-amd-dal-Reset-DPCD-sink-count-on-disconnect.patch
new file mode 100644
index 00000000..8ac9c230
--- /dev/null
+++ b/common/recipes-kernel/linux/files/0535-drm-amd-dal-Reset-DPCD-sink-count-on-disconnect.patch
@@ -0,0 +1,30 @@
+From 9990c805161886a9afccff039e99ffbaf9cd3fc9 Mon Sep 17 00:00:00 2001
+From: Eric Yang <eric.yang2@amd.com>
+Date: Fri, 27 Nov 2015 12:22:36 -0500
+Subject: [PATCH 0535/1110] drm/amd/dal: Reset DPCD sink count on disconnect
+
+This fixes active dongle downstream hotplug
+
+Signed-off-by: Eric Yang <eric.yang2@amd.com>
+Signed-off-by: Harry Wentland <harry.wentland@amd.com>
+Acked-by: Harry Wentland <harry.wentland@amd.com>
+---
+ drivers/gpu/drm/amd/dal/dc/core/dc_link.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/drivers/gpu/drm/amd/dal/dc/core/dc_link.c b/drivers/gpu/drm/amd/dal/dc/core/dc_link.c
+index 3484db5..647d141 100644
+--- a/drivers/gpu/drm/amd/dal/dc/core/dc_link.c
++++ b/drivers/gpu/drm/amd/dal/dc/core/dc_link.c
+@@ -363,6 +363,8 @@ static void link_unplug(struct core_link *link)
+ 
+ 	for (i = 0; i < link->public.sink_count; i++)
+ 		dc_link_remove_sink(&link->public, link->public.sink[i]);
++
++	link->dpcd_sink_count = 0;
+ }
+ 
+ static enum dc_edid_status read_edid(struct core_link *link)
+-- 
+2.7.4
+