diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-17 09:57:13 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-17 09:57:13 -0700 |
| commit | 1be5f0b7575e090fd100a98b303860879b5800de (patch) | |
| tree | 039e46bc92b93e68dbb9645413d5fd5007a411d6 | |
| parent | 42e8b9c00176dd3a2f11d05f195131bac851558b (diff) | |
| parent | d41160524d8d8ee721296e5c7e15f1ed727df7eb (diff) | |
| download | linux-1be5f0b7575e090fd100a98b303860879b5800de.tar.bz2 | |
Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine fixes fromVinod Koul:
"fixes of cylic dma usages in slave dma drivers"
* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: fix cyclic dma usage
dmaengine: pl330: dont complete descriptor for cyclic dma
| -rw-r--r-- | drivers/dma/at_hdmac.c | 4 | ||||
| -rw-r--r-- | drivers/dma/ep93xx_dma.c | 4 | ||||
| -rw-r--r-- | drivers/dma/pl330.c | 3 |
3 files changed, 8 insertions, 3 deletions
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c index 445fdf811695..bf0d7e4e345b 100644 --- a/drivers/dma/at_hdmac.c +++ b/drivers/dma/at_hdmac.c @@ -245,7 +245,9 @@ atc_chain_complete(struct at_dma_chan *atchan, struct at_desc *desc) dev_vdbg(chan2dev(&atchan->chan_common), "descriptor %u complete\n", txd->cookie); - dma_cookie_complete(txd); + /* mark the descriptor as complete for non cyclic cases only */ + if (!atc_chan_is_cyclic(atchan)) + dma_cookie_complete(txd); /* move children to free_list */ list_splice_init(&desc->tx_list, &atchan->free_list); diff --git a/drivers/dma/ep93xx_dma.c b/drivers/dma/ep93xx_dma.c index e6f133b78dc2..f6e9b572b998 100644 --- a/drivers/dma/ep93xx_dma.c +++ b/drivers/dma/ep93xx_dma.c @@ -703,7 +703,9 @@ static void ep93xx_dma_tasklet(unsigned long data) desc = ep93xx_dma_get_active(edmac); if (desc) { if (desc->complete) { - dma_cookie_complete(&desc->txd); + /* mark descriptor complete for non cyclic case only */ + if (!test_bit(EP93XX_DMA_IS_CYCLIC, &edmac->flags)) + dma_cookie_complete(&desc->txd); list_splice_init(&edmac->active, &list); } callback = desc->txd.callback; diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 2ee6e23930ad..fa3fb21e60be 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -2322,7 +2322,8 @@ static void pl330_tasklet(unsigned long data) /* Pick up ripe tomatoes */ list_for_each_entry_safe(desc, _dt, &pch->work_list, node) if (desc->status == DONE) { - dma_cookie_complete(&desc->txd); + if (pch->cyclic) + dma_cookie_complete(&desc->txd); list_move_tail(&desc->node, &list); } |