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| H A D | dram.c | a82ec8145961e57d19cdb71ad9823fd99f7f7c53 Thu Dec 01 08:55:05 UTC 2016 Lin Huang <hl@rock-chips.com> rockchip: rk3399: check vop status when we wait dma finish flag
When vop is disabled and we read the vop register the system will
hang, so check vop status when we wait for the DMA finish flag to
avoid this sitiuation. This is done by checking for standby, DMA stop
mode, and disabled window states. Any one of these will prevent the
DMA finish flag from triggering.
Signed-off-by: Lin Huang <hl@rock-chips.com>
Signed-off-by: Derek Basehore <dbasehore@chromium.org>
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