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From 7fee6299feb0a685740891ca9fb0abab9c69f6d4 Mon Sep 17 00:00:00 2001
From: Charlene Liu <charlene.liu@amd.com>
Date: Wed, 12 Sep 2018 18:22:16 -0400
Subject: [PATCH 0446/2940] drm/amd/display: fix 4K stereo screen flash issue
[Why]
HDMI_scramber is not enabled for pixel rate >340Mhz.
[How]
Calculate the phy clock to include the Hw frame packing factor.
Signed-off-by: Charlene Liu <charlene.liu@amd.com>
Reviewed-by: Chris Park <Chris.Park@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 3 +++
1 file changed, 3 insertions(+)
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 438c18ab1749..a500381c7973 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1975,6 +1975,9 @@ static void calculate_phy_pix_clks(struct dc_stream_state *stream)
else
stream->phy_pix_clk =
stream->timing.pix_clk_khz;
+
+ if (stream->timing.timing_3d_format == TIMING_3D_FORMAT_HW_FRAME_PACKING)
+ stream->phy_pix_clk *= 2;
}
enum dc_status resource_map_pool_resources(
--
2.17.1
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