Sandy Huang 1b5406f5db
drm/rockchip: add a debug node to dump buf from application ...
dump path: /data/vop_buf
debug nod: d/dri/0/ff900000.vop/vop_dump/dump
echo dump > dump to dump one frame
echo dumpon > dump to start vop keep dumping
echo dumpoff > dump to stop keep dumping
echo dumpn > dump n is the number of dump times
if fd err -3 try rm -r /data/vopbuf echo dump1 > dump can fix it
if fd err -28 save needed data try rm -r /data/vopbuf
Change-Id: Id5fefa428db1b5669ceae418cd8bddfa52e52f61
Signed-off-by: Shixiang Zheng <shixiang.zheng@rock-chips.com >
Signed-off-by: Sandy Huang <hjc@rock-chips.com >
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1b5406f5db