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Message-ID: <20120921182302.GF16522@beef>
Date: Fri, 21 Sep 2012 14:23:02 -0400
From: Matt Porter <mporter@...com>
To: "Hebbar, Gururaja" <gururaja.hebbar@...com>
Cc: Tony Lindgren <tony@...mide.com>, "Nori, Sekhar" <nsekhar@...com>,
Grant Likely <grant.likely@...retlab.ca>,
Mark Brown <broonie@...nsource.wolfsonmicro.com>,
"Cousson, Benoit" <b-cousson@...com>,
Russell King <linux@....linux.org.uk>,
Vinod Koul <vinod.koul@...el.com>,
Rob Landley <rob@...dley.net>, Chris Ball <cjb@...top.org>,
Linux DaVinci Kernel List
<davinci-linux-open-source@...ux.davincidsp.com>,
Arnd Bergmann <arnd@...db.de>,
Linux Documentation List <linux-doc@...r.kernel.org>,
Devicetree Discuss <devicetree-discuss@...ts.ozlabs.org>,
Linux MMC List <linux-mmc@...r.kernel.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Rob Herring <rob.herring@...xeda.com>,
Dan Williams <djbw@...com>,
Linux SPI Devel List
<spi-devel-general@...ts.sourceforge.net>,
Linux OMAP List <linux-omap@...r.kernel.org>,
Linux ARM Kernel List <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [RFC PATCH 05/13] dma: Add TI EDMA device tree binding
On Fri, Sep 21, 2012 at 08:45:53AM +0000, Hebbar, Gururaja wrote:
> On Thu, Sep 20, 2012 at 20:13:38, Porter, Matt wrote:
> > The binding definition is based on the generic DMA controller
> > binding.
> >
> > Signed-off-by: Matt Porter <mporter@...com>
> > ---
> > Documentation/devicetree/bindings/dma/ti-edma.txt | 49 +++++++++++++++++++++
> > 1 file changed, 49 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/dma/ti-edma.txt
> >
> > diff --git a/Documentation/devicetree/bindings/dma/ti-edma.txt b/Documentation/devicetree/bindings/dma/ti-edma.txt
> > new file mode 100644
> > index 0000000..06402eb
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/dma/ti-edma.txt
> > @@ -0,0 +1,49 @@
> > +TI EDMA
> > +
> > +Required properties:
> > +- compatible : "ti,edma3"
> > +- ti,hwmods: Name of the hwmods associated to the EDMA
> > +- ti,edma-regions: Number of regions
> > +- ti,edma-slots: Number of slots
> > +- ti,edma-queue-tc-map: List of transfer control to queue mappings
> > +- ti,edma-queue-priority-map: List of queue priority mappings
> > +- ti,edma-default-queue: Default queue value
> > +
> > +Optional properties:
> > +- ti,edma-reserved-channels: List of reserved channel regions
> > +- ti,edma-reserved-slots: List of reserved slot regions
> > +
> > +Example:
> > +
> > +edma: edma@...00000 {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
>
> address-cells & size-cells are only required when current node is a parent
> node & it has sibling/child nodes (that too if the child node uses "reg"
> property).
Ok. will drop that in v2.
>
>
> > + reg = <0x49000000 0x10000>;
> > + interrupt-parent = <&intc>;
> > + interrupts = <12 13 14>;
> > + compatible = "ti,edma3";
> > + ti,hwmods = "tpcc", "tptc0", "tptc1", "tptc2";
> > + #dma-cells = <1>;
> > + dma-channels = <64>;
> > + ti,edma-regions = <4>;
> > + ti,edma-slots = <256>;
> > + ti,edma-reserved-channels = <0 2
> > + 14 2
> > + 26 6
> > + 48 4
> > + 56 8>;
> > + ti,edma-reserved-slots = <0 2
> > + 14 2
> > + 26 6
> > + 48 4
> > + 56 8
> > + 64 127>;
> > + ti,edma-queue-tc-map = <0 0
> > + 1 1
> > + 2 2>;
> > + ti,edma-queue-priority-map = <0 0
> > + 1 1
> > + 2 2>;
> > + ti,edma-default-queue = <0>;
> > +};
> > +
> > --
> > 1.7.9.5
> >
> > _______________________________________________
> > Davinci-linux-open-source mailing list
> > Davinci-linux-open-source@...ux.davincidsp.com
> > http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
> >
>
>
> Regards,
> Gururaja
> _______________________________________________
> Davinci-linux-open-source mailing list
> Davinci-linux-open-source@...ux.davincidsp.com
> http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
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