Platform device model drawback
Greg KH
greg at kroah.com
Wed Nov 16 03:55:32 EST 2005
On Tue, Nov 15, 2005 at 07:51:20PM +0300, Vitaly Bordug wrote:
> Hi, Greg!
>
> While doing "platformization" for one of the Freescale SoC's, I have
> discovered a serious drawback of the model - it prevents registering
> driver with the same name.
That's not a "drawback" :)
> For instance, cpm2 on either ppc82xx or ppc85xx is very flexible, and
> its device fsl-cpm-scc could (and actually are) utilized in the
> different drivers.
>
> Those devices will have different bus_id, but pdev->name fields are the
> same for all the fsl-cpm-scc, only id is different there. Hence the
> fsl-cpm-scc could be driver_register'ed only once, while it is required
> several times.
A driver is registered only once, but can be bound to multiple devices
just fine, right?
> Could you please suggest possible solutions for this situation? This is
> relatively common case among freescale chips, so I guess inventing a
> workaround is odd, and writing an additional shim to handle CPM device
> multiplexing is odd either.
I don't see the problem here. Are you looking at the new stuff in
2.6.15-rc1?
thanks,
greg k-h
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