there is a Bug that:
vop_enable()->drm_vblank_on, drm_vblank_on may call vop
enable vblank. if it happen, vblank enable would failed,
then cause irq status error. because is_enabled value is set
after drm_vblank_on.
after enable vop clocks and iommu regs, we can sure that
R/W vop regs and do
there is a Bug that:
vop_enable()-drm_vblank_on, drm_vblank_on may call vop
enable vblank. if it happen, vblank enable would failed,
then cause irq status error. because is_enabled value is set
after drm_vblank_on.
after enable vop clocks and iommu regs, we can sure that
R/W vop regs and do vop
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