RE: [PATCH 3/3] dma: Add Freescale eDMA engine driver support

Lu Jingchang-B35083
2013-09-17T08:08:55Z

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> -----Original Message-----
> From: Vinod Koul [mailto:vinod.koul@intel.com]
> Sent: Tuesday, September 17, 2013 12:54 PM
> To: Lu Jingchang-B35083
> Cc: djbw@fb.com; shawn.guo@linaro.org; linux-kernel@vger.kernel.org;
> linux-arm-kernel@lists.infradead.org; devicetree@vger.kernel.org; Wang
> Huan-B18965
> Subject: Re: [PATCH 3/3] dma: Add Freescale eDMA engine driver support
> > + case DMA_PAUSE:
> > + if (fsl_chan->edesc)
> > + fsl_edma_disable_request(fsl_chan);
> racy here too...
It only set the channel HW register, no list is handled,
is lock needed here? Thanks!

Best Regards,
Jingchang

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