[PATCH 08/14] drm/amd/display: remove checking sink in is_timing_changed

[Wayne Lin]

From: Calvin Hou <Calvin.Hou at amd.com>

[Why]
Sometimes, such as sleep wake, the link->local sink pointer changed,
but the dc_stream_state->sink pointer is not changed. The checking
of timing_changed reports wrong result, lead to link tear down
unexpected wrongly.

[How]
SST compare local sink, MST compare proper remote link.

Signed-off-by: Calvin Hou <Calvin.Hou at amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr at amd.com>
Acked-by: Wayne Lin <Wayne.Lin at amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 8cb937c046aa..9fb0930f977b 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1706,12 +1706,6 @@ static bool is_timing_changed(struct dc_stream_state *cur_stream,
 	if (cur_stream == NULL)
 		return true;
 
-	/* If sink pointer changed, it means this is a hotplug, we should do
-	 * full hw setting.
-	 */
-	if (cur_stream->sink != new_stream->sink)
-		return true;
-
 	/* If output color space is changed, need to reprogram info frames */
 	if (cur_stream->output_color_space != new_stream->output_color_space)
 		return true;
-- 
2.17.1