tree 93dd2e114d474096fd654707d61a9e0f96a52a6b
parent b4dae6e1adaedc9c343b5f00332312d649600bdc
author Guennadi Liakhovetski <g.liakhovetski@gmx.de> 1313679327 +0200
committer Vinod Koul <vinod.koul@linux.intel.com> 1317184660 +0530

dma: shdma: transfer based runtime PM

Currently the shdma dmaengine driver uses runtime PM to save power, when
no channel on the specific controller is requested by a user. This patch
switches the driver to count individual DMA transfers. That way the
controller can be powered down between transfers, even if some of its
channels are in use.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>