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drm/bridge: synopsys: dw-hdmi: Select formula1 for csc decimation

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Formula3 and Formula2 for csc decimation will cause hdmi yuv422
display err.

Formula3:
The pixel color of left 0-14 columns and right 0-12 columns is
err.

Formula2:
The pixel color of left 0-2 columns is err.

Change-Id: I94fdd5fd962a24fde02dde1fe3ac10437ad117ad
Signed-off-by: Algea Cao <algea.cao@rock-chips.com>
This commit is contained in:
Algea Cao
2018-06-06 15:47:12 +08:00
committed by Tao Huang
parent ae989813d6
commit 2f7bde9c4c
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
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@@ -1336,7 +1336,7 @@ static void hdmi_video_csc(struct dw_hdmi *hdmi)
if (is_color_space_interpolation(hdmi))
interpolation = HDMI_CSC_CFG_INTMODE_CHROMA_INT_FORMULA1;
else if (is_color_space_decimation(hdmi))
decimation = HDMI_CSC_CFG_DECMODE_CHROMA_INT_FORMULA3;
decimation = HDMI_CSC_CFG_DECMODE_CHROMA_INT_FORMULA1;
switch (hdmi_bus_fmt_color_depth(hdmi->hdmi_data.enc_out_bus_format)) {
case 8: