Re: [Sound-open-firmware] [PATCH_V2] cnl: dma: fix playback failed at second time

On 2018年03月02日 13:49, Rander Wang wrote:

Stop dma at the end of playback, or next time dma is not avialable for playback

---

V2: fix typo in comments

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));
  

• }
  

Bingo, I forgot add this fix for CNL handler.

Thanks, ~Keyon

#endif /* end of a transfer */ if ((status_tfr & mask) &&