Re: RFC: Platform data for onboard USB assets

Grant Likely
2011-03-11T22:45:24Z

On Fri, Mar 11, 2011 at 2:50 AM, Andy Green <andy@warmcat.com> 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.

g.