dmaengine: fix cyclic dma usage

for cyclic dma, dont makr the descriptor as complte. Fix the remaining users of
cyclic dma which do so

Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Tested-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Tested-by: Mika Westerberg <mika.westerberg@iki.fi>

diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index 445fdf8..bf0d7e4 100644 (file)
--- 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 e6f133b..f6e9b57 100644 (file)
--- 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;