Re: [PATCH v3 1/2] dma: imx-dma: Add oftree support

[Markus Pargmann <mpa-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>]

On Thu, Feb 28, 2013 at 02:30:27PM +0800, Shawn Guo wrote:
> On Mon, Feb 25, 2013 at 05:04:14PM +0100, Markus Pargmann wrote:
> > Adding devicetree support for imx-dma driver. Use driver name for
> > function 'imx_dma_is_general_purpose' because the devicename for
> > devicetree initialized devices is different.
> 
> ...
> 
> > @@ -63,7 +66,8 @@ static inline int imx_dma_is_general_purpose(struct dma_chan *chan)
> >  	return strstr(dev_name(chan->device->dev), "sdma") ||
> >  		!strcmp(dev_name(chan->device->dev), "imx1-dma") ||
> >  		!strcmp(dev_name(chan->device->dev), "imx21-dma") ||
> > -		!strcmp(dev_name(chan->device->dev), "imx27-dma");
> > +		!strcmp(dev_name(chan->device->dev), "imx27-dma") ||
> > +		!strcmp(chan->device->dev->driver->name, "imx-dma");
> >  }
> 
> So the function could just look like the following?
> 
> static inline int imx_dma_is_general_purpose(struct dma_chan *chan)
> {
>         return !strcmp(chan->device->dev->driver->name, "imx-sdma") ||
>                 !strcmp(chan->device->dev->driver->name, "imx-dma");
> }

Yes. For imx-dma there is only imx1, imx21 and imx27 that use imx-dma
driver. And the devicenames of imx-sdma are imx31-sdma and imx35-sdma,
so all devices using imx-sdma match. I will change it for v4. Thanks

Markus

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