Re: [RFC PATCH v4 3/8] staging: imx-drm: Document updated imx-drm device tree bindings

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On Thu, Feb 27, 2014 at 01:06:52PM +0200, Tomi Valkeinen wrote:
> On 25/02/14 16:23, Philipp Zabel wrote:
> 
> > +Freescale i.MX DRM master device
> > +================================
> > +
> > +The freescale i.MX DRM master device is a virtual device needed to list all
> > +IPU or other display interface nodes that comprise the graphics subsystem.
> > +
> > +Required properties:
> > +- compatible: Should be "fsl,imx-drm"
> > +- ports: Should contain a list of phandles pointing to display interface ports
> > +  of IPU devices
> > +
> > +example:
> > +
> > +imx-drm {
> > +	compatible = "fsl,imx-drm";
> > +	ports = <&ipu_di0>;
> > +};
> 
> I'm not a fan of having non-hardware related things in the DT data.
> Especially if it makes direct references to our SW, in this case DRM.
> There's no DRM on the board. I wanted to avoid all that with OMAP
> display bindings.
> 
> Is there even need for such a master device? You can find all the
> connected display devices from any single display device, by just
> following the endpoint links.

Please read up on what has been discussed over previous years:

http://lists.freedesktop.org/archives/dri-devel/2013-July/041159.html

and please, let's not endlessly rehash old discussions because someone
wasn't involved and has a different opinion, otherwise we're never going
to get anywhere.

Thanks.

-- 
FTTC broadband for 0.8mile line: now at 9.7Mbps down 460kbps up... slowly
improving, and getting towards what was expected from it.
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