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dmaengine: pl330: convert callback to helper function 

This is in preperation of moving to a callback that provides results to the
callback for the transaction. The conversion will maintain current behavior
and the driver must convert to new callback mechanism at a later time in
order to receive results.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Dave Jiang 2016-07-20 13:12:35 -07:00 committed by Vinod Koul
parent 5c066f7d01
commit f08462c650
1 changed files with 4 additions and 6 deletions
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10
drivers/dma/pl330.c
View File

@ -2039,14 +2039,12 @@ static void pl330_tasklet(unsigned long data)
}
while (!list_empty(&pch->completed_list)) {
dma_async_tx_callback callback;
void *callback_param;
struct dmaengine_desc_callback cb;
desc = list_first_entry(&pch->completed_list,
struct dma_pl330_desc, node);
callback = desc->txd.callback;
callback_param = desc->txd.callback_param;
dmaengine_desc_get_callback(&desc->txd, &cb);
if (pch->cyclic) {
desc->status = PREP;
@ -2064,9 +2062,9 @@ static void pl330_tasklet(unsigned long data)
dma_descriptor_unmap(&desc->txd);
if (callback) {
if (dmaengine_desc_callback_valid(&cb)) {
spin_unlock_irqrestore(&pch->lock, flags);
callback(callback_param);
dmaengine_desc_callback_invoke(&cb, NULL);
spin_lock_irqsave(&pch->lock, flags);
}
}