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dmaengine: coh901318: 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>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Dave Jiang 2016-07-20 13:10:48 -07:00 committed by Vinod Koul
parent a1d4eaaf40
commit 3ab553d9f5
1 changed files with 3 additions and 6 deletions
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9
drivers/dma/coh901318.c
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@ -1888,8 +1888,7 @@ static void dma_tasklet(unsigned long data)
struct coh901318_chan *cohc = (struct coh901318_chan *) data;
struct coh901318_desc *cohd_fin;
unsigned long flags;
dma_async_tx_callback callback;
void *callback_param;
struct dmaengine_desc_callback cb;
dev_vdbg(COHC_2_DEV(cohc), "[%s] chan_id %d"
" nbr_active_done %ld\n", __func__,
@ -1904,8 +1903,7 @@ static void dma_tasklet(unsigned long data)
goto err;
/* locate callback to client */
callback = cohd_fin->desc.callback;
callback_param = cohd_fin->desc.callback_param;
dmaengine_desc_get_callback(&cohd_fin->desc, &cb);
/* sign this job as completed on the channel */
dma_cookie_complete(&cohd_fin->desc);
@ -1920,8 +1918,7 @@ static void dma_tasklet(unsigned long data)
spin_unlock_irqrestore(&cohc->lock, flags);
/* Call the callback when we're done */
if (callback)
callback(callback_param);
dmaengine_desc_callback_invoke(&cb, NULL);
spin_lock_irqsave(&cohc->lock, flags);