tree a16b2dd972ba8ebdd9e6796ad8f0027513316f49
parent a1c03319018061304be28d131073ac13a5cb86fb
author Ira Snyder <iws@ovro.caltech.edu> 1262784846 +0000
committer Dan Williams <dan.j.williams@intel.com> 1265147502 -0700

fsldma: major cleanups and fixes

Fix locking. Use two queues in the driver, one for pending transacions, and
one for transactions which are actually running on the hardware. Call
dma_run_dependencies() on descriptor cleanup so that the async_tx API works
correctly.

There are a number of places throughout the code where lists of descriptors
are freed in a loop. Create functions to handle this, and use them instead
of open-coding the loop each time.

Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>