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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>
hifive-unleashed-5.1
Vinod Koul 2012-05-11 11:48:21 +05:30
parent eab2158558
commit d41160524d
2 changed files with 6 additions and 2 deletions
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4
drivers/dma/at_hdmac.c
View File

@ -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);

4
drivers/dma/ep93xx_dma.c
View File

@ -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;