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-rw-r--r--common/recipes-kernel/linux/files/0707-drm-amd-dal-Log-MST-branch-connect-disconnect.patch44
1 files changed, 44 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/files/0707-drm-amd-dal-Log-MST-branch-connect-disconnect.patch b/common/recipes-kernel/linux/files/0707-drm-amd-dal-Log-MST-branch-connect-disconnect.patch
new file mode 100644
index 00000000..30e19acf
--- /dev/null
+++ b/common/recipes-kernel/linux/files/0707-drm-amd-dal-Log-MST-branch-connect-disconnect.patch
@@ -0,0 +1,44 @@
+From 39b33ac96c2a539e9ddb832ebe1ec69fbc77b02f Mon Sep 17 00:00:00 2001
+From: Harry Wentland <harry.wentland@amd.com>
+Date: Fri, 15 Jan 2016 08:58:53 -0500
+Subject: [PATCH 0707/1110] drm/amd/dal: Log MST branch connect/disconnect
+
+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 | 10 ++++++++--
+ 1 file changed, 8 insertions(+), 2 deletions(-)
+
+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 c8419a8..3c96810 100644
+--- a/drivers/gpu/drm/amd/dal/dc/core/dc_link.c
++++ b/drivers/gpu/drm/amd/dal/dc/core/dc_link.c
+@@ -612,8 +612,11 @@ bool dc_link_detect(const struct dc_link *dc_link, bool boot)
+ if (link->public.type == dc_connection_none)
+ return true;
+
+- if (link->public.type == dc_connection_mst_branch)
++ if (link->public.type == dc_connection_mst_branch) {
++ LINK_INFO("link=%d, mst branch is now Connected\n",
++ link->public.link_index);
+ return false;
++ }
+
+ break;
+ }
+@@ -712,8 +715,11 @@ bool dc_link_detect(const struct dc_link *dc_link, bool boot)
+
+ } else {
+ /* From Connected-to-Disconnected. */
+- if (link->public.type == dc_connection_mst_branch)
++ if (link->public.type == dc_connection_mst_branch) {
++ LINK_INFO("link=%d, mst branch is now Disconnected\n",
++ link->public.link_index);
+ dc_helpers_dp_mst_stop_top_mgr(link->ctx, &link->public);
++ }
+
+ link->public.type = dc_connection_none;
+ sink_caps.signal = SIGNAL_TYPE_NONE;
+--
+2.7.4
+