RE: [PATCH v3 1/5] Documentation: DT: vdma: Rename vdma-chan prefix to dma-chan

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Hi Vinod,

> -----Original Message-----
> From: Koul, Vinod [mailto:vinod.koul@xxxxxxxxx]
> Sent: Thursday, April 07, 2016 5:53 AM
> To: Soren Brinkmann <sorenb@xxxxxxxxxx>
> Cc: lars@xxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; pawel.moll@xxxxxxx;
> Appana Durga Kedareswara Rao <appanad@xxxxxxxxxx>;
> luis@xxxxxxxxxxxxxxxxx; moritz.fischer@xxxxxxxxx; robh+dt@xxxxxxxxxx;
> Srikanth Vemula <svemula@xxxxxxxxxx>; Michal Simek <michals@xxxxxxxxxx>;
> Anirudha Sarangi <anirudh@xxxxxxxxxx>; devicetree@xxxxxxxxxxxxxxx; Soren
> Brinkmann <sorenb@xxxxxxxxxx>; Williams, Dan J <dan.j.williams@xxxxxxxxx>;
> mark.rutland@xxxxxxx; galak@xxxxxxxxxxxxxx; ijc+devicetree@xxxxxxxxxxxxxx;
> dmaengine@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx;
> laurent.pinchart@xxxxxxxxxxxxxxxx
> Subject: Re: [PATCH v3 1/5] Documentation: DT: vdma: Rename vdma-chan
> prefix to dma-chan
> 
> On Wed, 2016-04-06 at 16:00 -0700, Sören Brinkmann wrote:
> > On Wed, 2016-04-06 at 22:13:59 +0000, Koul, Vinod wrote:
> > > On Wed, 2016-04-06 at 23:16 +0200, Lars-Peter Clausen wrote:
> > > > On 04/06/2016 06:25 PM, Appana Durga Kedareswara Rao wrote:
> > > > > a/Documentation/devicetree/bindings/dma/xilinx/xilinx_vdma.txt
> > > > > > > +++
> > > > > > > b/Documentation/devicetree/bindings/dma/xilinx/xilinx_vdma.t
> > > > > > > xt
> > > > > > > @@ -24,8 +24,8 @@ Optional properties:
> > > > > > >  	{3}, flush s2mm channel
> > > > > > >
> > > > > > >  Required child node properties:
> > > > > > > -- compatible: It should be either "xlnx,axi-vdma-mm2s
> > > > > > > -channel"
> > > > > > > or
> > > > > > > -	"xlnx,axi-vdma-s2mm-channel".
> > > > > > > +- compatible: It should be either "xlnx,axi-dma-mm2s
> > > > > > > -channel"
> > > > > > > or
> > > > > > > +	"xlnx,axi-dma-s2mm-channel".
> > > > > >
> > > > > > This change is not backwards compatible and breaks every user
> > > > > > of the current binding.
> > > > >
> > > > > This commit
> > > > > http://git.kernel.org/cgit/linux/kernel/git/vkoul/slave-
> > > > >
> dma.git/commit/?h=next&id=8e66e7d682b04f7141f8ae666908c8dcd7fc0b
> > > > > fa
> > > > > Renames xilinx_vdma_ prefix to xilinx_dma which includes
> > > > > renaming of the above properties.
> > >
> > > That patch changes driver from vdma to dma. It does not change
> > > property name!
> >
> > It does. Unfortunately there are no line numbers on that website,
> > hence here an excerpt from the commit you mention:
> > @@ -1220,26 +1220,26 @@ static int xilinx_vdma_chan_probe(struct
> > xilinx_vdma_device *xdev,
> >  	if (!has_dre)
> >  		xdev->common.copy_align = fls(width - 1);
> >
> > -	if (of_device_is_compatible(node, "xlnx,axi-vdma-mm2s
> > -channel")) {
> > +	if (of_device_is_compatible(node, "xlnx,axi-dma-mm2s
> > -channel")) {
> >  		chan->direction = DMA_MEM_TO_DEV;
> >  		chan->id = 0;
> 
> Right, missed that somehow.
> 
> Am dropping the patch

Will fix this part and will include this patch in v4 series...

Regards,
Kedar.

> 
> --
> ~Vinod
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