create independent workqueqe to do auto refresh work Signed-off-by: Zorro Liu <lyx@rock-chips.com> Change-Id: I71421e4391fe9c1f85023b08057d75a4e11e9c85
create independent workqueqe to do auto refresh work Signed-off-by: Zorro Liu <lyx@rock-chips.com> Change-Id: I71421e4391fe9c1f85023b08057d75a4e11e9c85