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    • Liu Ying's avatar
      MLK-23187-2 drm/imx: dpu: crtc: Disable DPRC repeat_en in ->atomic_disable() · af86e338
      Liu Ying authored
      
      In order to avoid garbage data left in RTRAM after disabling CRTC,
      the SoC designer suggests us to disable DPRC repeat_en after FrameGen
      FGEN is cleared and before ENSTS is cleared.  Also, it is suggested
      that FGEN clearing should be done in the frame prior to DPRC repeat_en
      disablement. So, syncing to FrameGen frame counter moving is needed.
      The disablement procedure should be done as soon as possible, so we
      disable local irq and preemption during the procedure to ensure this.
      
      Reviewed-by: default avatarSandor Yu <Sandor.yu@nxp.com>
      Signed-off-by: default avatarLiu Ying <victor.liu@nxp.com>
      (cherry picked from commit ac84ef51ed68ce0ff9e7a3b5f5878ce0f788bb31)
      (cherry picked from commit dd0dd77bf3231efb2979b0bbe86d5c99cc892d5f)
      af86e338
    • Liu Ying's avatar
      MLK-23187-1 gpu: imx: dpu: framegen: Increase timeout again when waiting for moving · c1272165
      Liu Ying authored
      
      In the coming patch, we would wait for FrameGen counter moving in
      ->atomic_disable() to get synchronization before disabling DPRC
      repeat_en.  It appears that waiting for 50ms for video mode
      1920x1080@24Hz is not enough in this case and increasing timeout
      to 100ms looks ok.
      
      Reviewed-by: default avatarSandor Yu <Sandor.yu@nxp.com>
      Signed-off-by: default avatarLiu Ying <victor.liu@nxp.com>
      (cherry picked from commit 97ba7831a140f85666306606176004e3634b384c)
      (cherry picked from commit 0f3a9e7dd10cd152866e32e855e8b9c0f6846020)
      c1272165
  16. Jan 17, 2020
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