Clean the interrupt status before enable interrupt
and set the vblank_disable_allowed to fix the issue.

Bibby Hsieh (2):
  drm/mediatek: set vblank_disable_allowed to true
  drm/mediatek: clear IRQ status before enable OVL interrupt

 drivers/gpu/drm/mediatek/mtk_disp_ovl.c |    1 +
 drivers/gpu/drm/mediatek/mtk_drm_drv.c  |    1 +
 2 files changed, 2 insertions(+)

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1.7.9.5