From: Dave Jiang Date: Wed, 20 Jul 2016 20:11:56 +0000 (-0700) Subject: dmaengine: mmp_pdma: convert callback to helper function X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9c1e511cc6675f3e2102e4a69a5d6eda18cfacc1;p=linux-beck.git dmaengine: mmp_pdma: 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 Reviewed-by: Lars-Peter Clausen Signed-off-by: Vinod Koul --- diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c index f4b25fb0d040..eb3a1f42ab06 100644 --- a/drivers/dma/mmp_pdma.c +++ b/drivers/dma/mmp_pdma.c @@ -864,19 +864,15 @@ static void dma_do_tasklet(unsigned long data) struct mmp_pdma_desc_sw *desc, *_desc; LIST_HEAD(chain_cleanup); unsigned long flags; + struct dmaengine_desc_callback cb; if (chan->cyclic_first) { - dma_async_tx_callback cb = NULL; - void *cb_data = NULL; - spin_lock_irqsave(&chan->desc_lock, flags); desc = chan->cyclic_first; - cb = desc->async_tx.callback; - cb_data = desc->async_tx.callback_param; + dmaengine_desc_get_callback(&desc->async_tx, &cb); spin_unlock_irqrestore(&chan->desc_lock, flags); - if (cb) - cb(cb_data); + dmaengine_desc_callback_invoke(&cb, NULL); return; } @@ -921,8 +917,8 @@ static void dma_do_tasklet(unsigned long data) /* Remove from the list of transactions */ list_del(&desc->node); /* Run the link descriptor callback function */ - if (txd->callback) - txd->callback(txd->callback_param); + dmaengine_desc_get_callback(txd, &cb); + dmaengine_desc_callback_invoke(&cb, NULL); dma_pool_free(chan->desc_pool, desc, txd->phys); }