[Sound-open-firmware] [PATCH] cnl: dma: fix playback failed at second time

Stop dma when stream is end, or next time dma is not avilable to playback

Signed-off-by: Rander Wang rander.wang@intel.com --- src/drivers/dw-dma.c | 6 ++++++ 1 file changed, 6 insertions(+)

diff --git a/src/drivers/dw-dma.c b/src/drivers/dw-dma.c index be19e12..15d608c 100644 --- a/src/drivers/dw-dma.c +++ b/src/drivers/dw-dma.c @@ -1103,6 +1103,12 @@ static void dw_dma_irq_handler(void *data) p->chan[i].cb(p->chan[i].cb_data, DMA_IRQ_TYPE_BLOCK, &next); } + + if (next.size == DMA_RELOAD_END) { + trace_dma("LSo"); + /* disable channel, finished */ + dw_write(dma, DW_DMA_CHAN_EN, CHAN_DISABLE(i)); + } #endif /* end of a transfer */ if ((status_tfr & mask) &&