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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
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