Re: RFC: Platform data for onboard USB assets

[Andy Green]

On 03/11/2011 10:45 PM, Somebody in the thread at some point said:
> On Fri, Mar 11, 2011 at 2:50 AM, Andy Green<andy@xxxxxxxxxxx>  wrote:
> > Hi -
> >
> > platform_data is a well established way in Linux to pass configuration data
> > up to on-board assets from a machine file like mach-xyz.c.  It's also
> > supported to pass platform_data up to devices that are probed asynchronously
> > from busses like i2c as well, which is very handy.
> >
> > However AFAIK it's not possible to bind platform_data to probed USB devices
> > as it stands.
>
> Oh, please no.
>
> platform_data is an ugly non-type-checked anonymous pointer.  If you
> need to pass data to a driver, use something better designed.  A
> device tree fragment would work, or provide some kind of query api.
> platform_data is definitely the wrong approach.

$ grep platform_data drivers/* -R | wc -l
2110

-Andy
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