Re: overlapping resources for platform devices?

From: Greg KH
Date: Wed Nov 16 2005 - 02:06:49 EST


On Tue, Nov 15, 2005 at 05:31:57PM -0600, Kumar Gala wrote:
> Guys,
>
> I was wondering if there was any issue in changing platform_device_add to
> use insert_resource instead of request_resource. The reason for this
> change is to handle several cases where we have device registers that
> overlap that two different drivers are handling.
>
> The biggest case of this is with ethernet on a number of PowerPC based
> systems where a subset of the ethernet controllers registers are used for
> MDIO/PHY bus control. We currently hack around the limitation by having
> the MDIO/PHY bus not actually register an memory resource region.
>
> If the following looks good I'll send a more formal patch.

Looks good to me, but Russell knows this code much better than I.

thanks,

greg k-h
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