[PATCH 1/3 v2] usb: tegra20-ehci: Add devicetree support.

[Andrew Chew]

> > +       retval = of_property_read_u32(dn, "hssync_start_delay",
> > +                                     (u32 
> *)&phy_config->hssync_start_delay);
> 
> Gah!  Don't cast pointers that way.  It will break badly if the sizes
> don't match.  The variable *must* be a u32.

Can we have u16 and u8 versions of of_property_read, then?  It'll simplify code.  I'll be happy to submit a patch for that if that's what we want.