If user is using DVI->HDMI dongle dual link signal might pose a
problem. Keep single link signal type if clk is lower than
max tmds clk.

Change-Id: I6ad1009bb195e0d1ba91a9801c6125778419f739
Signed-off-by: Harry Wentland <harry.wentl...@amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 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 ae8b221c85aa..9588217e0220 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1283,9 +1283,12 @@ static void update_stream_signal(struct core_stream 
*stream)
                stream->signal = stream->public.output_signal;
        }
 
-       if (stream->signal == SIGNAL_TYPE_DVI_SINGLE_LINK &&
-               stream->public.timing.pix_clk_khz > TMDS_MAX_PIXEL_CLOCK_IN_KHZ)
-               stream->signal = SIGNAL_TYPE_DVI_DUAL_LINK;
+       if (dc_is_dvi_signal(stream->signal)) {
+               if (stream->public.timing.pix_clk_khz > 
TMDS_MAX_PIXEL_CLOCK_IN_KHZ)
+                       stream->signal = SIGNAL_TYPE_DVI_DUAL_LINK;
+               else
+                       stream->signal = SIGNAL_TYPE_DVI_SINGLE_LINK;
+       }
 }
 
 bool resource_is_stream_unchanged(
-- 
2.11.0

_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

Reply via email to