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-rw-r--r--common/recipes-kernel/linux/files/0886-drm-amd-dal-Fixed-active-dongle-not-light-up-issue.patch41
1 files changed, 41 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/files/0886-drm-amd-dal-Fixed-active-dongle-not-light-up-issue.patch b/common/recipes-kernel/linux/files/0886-drm-amd-dal-Fixed-active-dongle-not-light-up-issue.patch
new file mode 100644
index 00000000..46ba84f5
--- /dev/null
+++ b/common/recipes-kernel/linux/files/0886-drm-amd-dal-Fixed-active-dongle-not-light-up-issue.patch
@@ -0,0 +1,41 @@
+From d9a3ca6816f486312fee0a7639a1334b64463dd9 Mon Sep 17 00:00:00 2001
+From: Yongqiang Sun <yongqiang.sun@amd.com>
+Date: Tue, 8 Mar 2016 15:18:18 -0500
+Subject: [PATCH 0886/1110] drm/amd/dal: Fixed active dongle not light up
+ issue.
+
+Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
+Acked-by: Harry Wentland <harry.wentland@amd.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+---
+ drivers/gpu/drm/amd/dal/dc/core/dc_link.c | 6 ++++--
+ 1 file changed, 4 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 68a167b..0232956 100644
+--- a/drivers/gpu/drm/amd/dal/dc/core/dc_link.c
++++ b/drivers/gpu/drm/amd/dal/dc/core/dc_link.c
+@@ -480,8 +480,8 @@ static void detect_dp(
+
+ /* DP active dongles */
+ if (is_dp_active_dongle(link)) {
++ link->public.type = dc_connection_active_dongle;
+ if (!link->dpcd_caps.sink_count.bits.SINK_COUNT) {
+- link->public.type = dc_connection_none;
+ /*
+ * active dongle unplug processing for short irq
+ */
+@@ -607,7 +607,9 @@ bool dc_link_detect(const struct dc_link *dc_link, bool boot)
+ &audio_support, boot);
+
+ /* Active dongle downstream unplug */
+- if (link->public.type == dc_connection_none)
++ if (link->public.type == dc_connection_active_dongle
++ && link->dpcd_caps.sink_count.
++ bits.SINK_COUNT == 0)
+ return true;
+
+ if (link->public.type == dc_connection_mst_branch) {
+--
+2.7.4
+