drm/rockchip: vop: fix vop vsync/hsync polarity

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Vop set wrong vsync/hsync polarity, it may cause some
display problem. known problem is that caused HDMI hdcp
authenticate failed, caused pixel offset with hdmi display.
the polarity description at RK3288 TRM doc:
  dsp_vsync_pol
    VSYNC polarity
      1'b0 : negative
      1'b1 : positive
      dsp_hsync_pol
    HSYNC polarity
      1'b0 : negative
      1'b1 : positive

Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Tested-by: Caesar Wang <wxt@rock-chips.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>

...

This commit is contained in:

Mark Yao 2015-01-22 11:15:02 +08:00

parent f76c83b580

commit 44ddb7ef38

1 changed files with 2 additions and 2 deletions

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drivers/gpu/drm/rockchip/rockchip_drm_vop.c

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