tree 8723262ec9fdcc44d057636bd461e8e998f19e72
parent d4adcc0160404c3237fe6ffa09dd2dd039dd3975
author Barry Song <21cnbao@gmail.com> 1375177474 +0800
committer Vinod Koul <vinod.koul@intel.com> 1376393461 +0530

dmaengine: sirf: add PM entries for sleep and runtime

this patch adds PM ops entries in sirf-dma drivers, so that this
driver can support suspend/resume, hibernation and runtime PM.

while suspending, sirf-dma will lose all registers, so we save
them at suspend and restore in resume for active channels.

Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Rongjun Ying <Rongjun.Ying@csr.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>