tree f0fc2e9d1053d98b265f38453e01cba00d1b7bd2
parent 2540f74b187e3ec0fe106b7427c4a84c955dc140
author Andy Shevchenko <andriy.shevchenko@linux.intel.com> 1411481894 +0300
committer Vinod Koul <vinod.koul@intel.com> 1413385265 +0530

dmaengine: dw: enable and disable controller when needed

Enable controller automatically whenever first user requires for a channel and
disable it when the last user gone.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>