tree 9235d958ed3e4d0cf5198b2fa0a406c29db27ce0
parent 1eed601a5b02a1f0bbabd155aeea7879fc3708eb
author Jie Yang <yang.jie@intel.com> 1425535688 +0800
committer Vinod Koul <vinod.koul@intel.com> 1425544668 +0530

dmaengine: dw: don't handle interrupt when dmaengine is not used

When dma controller is not used by any user and set off,
we should disble interrupt handler, at least the interrupt
reset part, for some subsystem, e.g. ADSP, may use the
dma in its own logic, here reset the interrupt may make
this subsystem work abnormally.

Signed-off-by: Jie Yang <yang.jie@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>