On 3/9/2018 16:48, Xiuli Pan wrote:

From: Pan Xiuli xiuli.pan@linux.intel.com

At the end of the DMA, we need to set the channel status into parapre, otherwise next dma start will fail. This will fix APL pause resume issues.

Signed-off-by: Pan Xiuli xiuli.pan@linux.intel.com

-- Test with: Mininow max rt5651 and GP-MRB nocodec SOF master: 728f1ff3e32e14e19847ba513f8b0e3af80762c0 SOF-Tool master: 5b5bbe31e6d914079707bfa6c129c2730ea7aeff https://github.com/plbossart/sound/tree/topic/sof-v4.14: fe5e29155127a717ba5ae454b4bdde99afa67723

---

src/drivers/dw-dma.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/src/drivers/dw-dma.c b/src/drivers/dw-dma.c index f6f776a..ff0f74a 100644 --- a/src/drivers/dw-dma.c +++ b/src/drivers/dw-dma.c @@ -953,6 +953,7 @@ static void dw_dma_irq_handler(void *data) trace_dma("LSo"); /* disable channel, finished */ dw_write(dma, DW_DMA_CHAN_EN, CHAN_DISABLE(i));

• 		p->chan[i].status = COMP_STATE_PREPARE;
  }
  

  } #endif

This patch may still cause random pause resume fail. Still need to check with the pipeline.