RE: [PATCH 3/3] dma: Add Freescale eDMA engine driver support
From: Lu Jingchang-B35083
Date: Tue Sep 17 2013 - 04:08:59 EST
> -----Original Message-----
> From: Vinod Koul [mailto:vinod.koul@xxxxxxxxx]
> Sent: Tuesday, September 17, 2013 12:54 PM
> To: Lu Jingchang-B35083
> Cc: djbw@xxxxxx; shawn.guo@xxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx;
> linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx; 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
¢éì ®&Þ~º&¶¬–+-±éÝ¥Šw®žË±Êâmébžìdz¹Þ)í…æèw* jg¬±¨ ¶‰šŽŠÝj/êäz¹ÞŠà2ŠÞ¨èÚ&¢)ß«a¶Úþø ®G«éh®æj:+v‰¨Šwè†Ù>Wš±êÞiÛaxPjØm¶Ÿÿà -»+ƒùdš_