Is there a binding for IORESOURCE_DMA population?

[Shawn Guo]

On Sat, Jul 16, 2011 at 10:43:31PM +0800, Tabi Timur-B04825 wrote:
> Shawn Guo wrote:
> > ssi at 83fcc000 { /* SSI1 */
> > 	compatible = "fsl,imx51-ssi", "fsl,imx1-ssi";
> > 	reg =<0x83fcc000 0x4000>;
> > 	interrupts =<29>;
> > 	fsl,dma-events =<29 28 27 26>; /* TX0 RX0 TX1 RX1 */
> > 	fsl,ssi-uses-dma;
> > };
> 
> This is similar to what we do on PowerPC:
> 
>              ssi at 15000 {
>                      compatible = "fsl,mpc8610-ssi";
>                      cell-index = <0>;
>                      reg = <0x15000 0x100>;
>                      interrupts = <75 2 0 0>;
>                      fsl,mode = "i2s-slave";
>                      codec-handle = <&wm8776>;
>                      fsl,playback-dma = <&dma00>;
>                      fsl,capture-dma = <&dma01>;
>                      fsl,fifo-depth = <15>;
>                      fsl,ssi-asynchronous;
>               };
> 
> Keep in mind that there already is a device-tree enabled SSI driver, so 
> you need to find a way to use that driver, instead of adding device-tree 
> support to the non-DT driver that's already there.
> 
Between a) making DT enabled SSI driver (mpc version) work for i.mx
and b) adding DT probe support for imx-ssi driver, I would absolutely
go for b).  Apparently it's much easier.

-- 
Regards,
Shawn