[RESEND PATCH v2 3/6] Documentation: DT: vdma: update binding doc for AXI DMA

Appana Durga Kedareswara Rao appana.durga.rao at xilinx.com
Wed Apr 6 08:40:27 PDT 2016


Hi Vinod,

> -----Original Message-----
> From: Vinod Koul [mailto:vinod.koul at intel.com]
> Sent: Wednesday, April 06, 2016 9:05 PM
> To: Appana Durga Kedareswara Rao <appanad at xilinx.com>
> Cc: robh+dt at kernel.org; pawel.moll at arm.com; mark.rutland at arm.com;
> ijc+devicetree at hellion.org.uk; galak at codeaurora.org; Michal Simek
> <michals at xilinx.com>; Soren Brinkmann <sorenb at xilinx.com>;
> dan.j.williams at intel.com; Appana Durga Kedareswara Rao
> <appanad at xilinx.com>; moritz.fischer at ettus.com;
> laurent.pinchart at ideasonboard.com; luis at debethencourt.com; Srikanth
> Vemula <svemula at xilinx.com>; Anirudha Sarangi <anirudh at xilinx.com>;
> devicetree at vger.kernel.org; linux-arm-kernel at lists.infradead.org; linux-
> kernel at vger.kernel.org; dmaengine at vger.kernel.org
> Subject: Re: [RESEND PATCH v2 3/6] Documentation: DT: vdma: update binding
> doc for AXI DMA
> 
> On Wed, Apr 06, 2016 at 10:44:57AM +0530, Kedareswara rao Appana wrote:
> > This patch updates the device-tree binding doc for adding support for
> > AXI DMA.
> >
> > Signed-off-by: Kedareswara rao Appana <appanad at xilinx.com>
> > ---
> > Changes for v2:
> > ---> Modified commit message as suggested by Vinod.
> > ---> Moved the patch to forward in the series as suggested by vinod.
> >
> >  .../devicetree/bindings/dma/xilinx/xilinx_vdma.txt | 22
> > +++++++++++++++++++++-
> >  1 file changed, 21 insertions(+), 1 deletion(-)
> >
> > diff --git
> > a/Documentation/devicetree/bindings/dma/xilinx/xilinx_vdma.txt
> > b/Documentation/devicetree/bindings/dma/xilinx/xilinx_vdma.txt
> > index a86737c..5841421 100644
> > --- a/Documentation/devicetree/bindings/dma/xilinx/xilinx_vdma.txt
> > +++ b/Documentation/devicetree/bindings/dma/xilinx/xilinx_vdma.txt
> > @@ -3,8 +3,13 @@ It can be configured to have one channel or two
> > channels. If configured  as two channels, one is to transmit to the
> > video device and another is  to receive from the video device.
> >
> > +Xilinx AXI DMA engine, it does transfers between memory and AXI4
> > +stream target devices. It can be configured to have one channel or two
> channels.
> > +If configured as two channels, one is to transmit to the device and
> > +another is to receive from the device.
> > +
> >  Required properties:
> > -- compatible: Should be "xlnx,axi-vdma-1.00.a"
> > +- compatible: Should be "xlnx,axi-vdma-1.00.a" or "xlnx,axi-dma-1.00.a"
> >  - #dma-cells: Should be <1>, see "dmas" property below
> >  - reg: Should contain VDMA registers location and length.
> >  - xlnx,num-fstores: Should be the number of framebuffers as configured in
> h/w.
> > @@ -59,6 +64,21 @@ axi_vdma_0: axivdma at 40030000 {
> >  	} ;
> >  } ;
> >
> > +axi_dma_0: axidma at 40400000 {
> 
> Why have you ignored Robs comment on this? Ideally you should have posted
> these fixed.

I just resent the patch series as you requested.
Will fix Rob's comments and will send v3...

Regards,
Kedar.

> 
> > +	compatible = "xlnx,axi-dma-1.00.a";
> > +	#dma-cells = <1>;
> > +	reg = < 0x40400000 0x10000 >;
> > +	dma-channel at 40400000 {
> > +		compatible = "xlnx,axi-dma-mm2s-channel";
> > +		interrupts = < 0 59 4 >;
> > +		xlnx,datawidth = <0x40>;
> > +	} ;
> > +	dma-channel at 40400030 {
> > +		compatible = "xlnx,axi-dma-s2mm-channel";
> > +		interrupts = < 0 58 4 >;
> > +		xlnx,datawidth = <0x40>;
> > +	} ;
> > +} ;
> >
> >  * DMA client
> >
> > --
> > 2.1.2
> >
> 
> --
> ~Vinod



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