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

[Wang, Rander]

Last night I sleep too late and make my eye uncomfortable today.
It is too bad to sleep too late.

> -----Original Message-----
> From: Ranjani Sridharan [mailto:ranjani.sridharan at linux.intel.com]
> Sent: Friday, March 2, 2018 2:40 PM
> To: Wang, Rander <rander.wang at intel.com>;
> sound-open-firmware at alsa-project.org
> Subject: Re: [Sound-open-firmware] [PATCH_V2] cnl: dma: fix playback failed at
> second time
> 
> On Fri, 2018-03-02 at 13:49 +0800, Rander Wang wrote:
> > Stop dma at the end of playback, or next time dma is not avialable for
> > playback
> typo still there: available :)
> >
> > ---
> > V2: fix typo in comments
> >
> > Signed-off-by: Rander Wang <rander.wang at 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) &&