diff options
| -rw-r--r-- | drivers/dma/amba-pl08x.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index b6132845e65..30b6921f094 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -1671,10 +1671,7 @@ static void pl08x_tasklet(unsigned long data) spin_lock_irqsave(&plchan->lock, flags); list_splice_tail_init(&plchan->done_list, &head); - /* If a new descriptor is queued, set it up plchan->at is NULL here */ - if (!list_empty(&plchan->issued_list)) { - pl08x_start_next_txd(plchan); - } else if (!list_empty(&plchan->pend_list) || plchan->phychan_hold) { + if (plchan->at || !list_empty(&plchan->pend_list) || plchan->phychan_hold) { /* * This channel is still in use - we have a new txd being * prepared and will soon be queued. Don't give up the @@ -1786,6 +1783,10 @@ static irqreturn_t pl08x_irq(int irq, void *dev) pl08x_release_mux(plchan); dma_cookie_complete(&tx->tx); list_add_tail(&tx->node, &plchan->done_list); + + /* And start the next descriptor */ + if (!list_empty(&plchan->issued_list)) + pl08x_start_next_txd(plchan); } spin_unlock(&plchan->lock); |