[PATCH 04/14] drm/amd/display: fix single link DVI has no display

[sunpeng.li at amd.com]

From: Charlene Liu <charlene.liu at amd.com>

Change-Id: Ie73c190eb7caf8d07df66b0f94297e2dacd24afe
Signed-off-by: Charlene Liu <charlene.liu at amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin at amd.com>
Acked-by: Leo Li <sunpeng.li at amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc_link.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index 71b94e3..8eb4ef8 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -1812,6 +1812,8 @@ static void enable_link_hdmi(struct pipe_ctx *pipe_ctx)
 	bool is_vga_mode = (stream->timing.h_addressable == 640)
 			&& (stream->timing.v_addressable == 480);
 
+	if (stream->phy_pix_clk == 0)
+		stream->phy_pix_clk = stream->timing.pix_clk_khz;
 	if (stream->phy_pix_clk > 340000)
 		is_over_340mhz = true;
 
-- 
2.7.4