The patch 'fsldma: do not cleanup descriptors in hardirq context'
(commit 222ccf9a) removed descriptors
cleanup function to tasklet but the completed cookie do not updated.
Thus, the DMA controller will get lots of duplicated transfer
interrupts. Just make a completed cookie update in interrupt handler.
And keep other cleanup jobs in tasklet function.
Tested-by: NSebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: NZhang Wei <wei.zhang@freescale.com>
Signed-off-by: NDan Williams <dan.j.williams@intel.com>