On Mon, Mar 08, 2021 at 03:32:51PM -0700, Rob Herring wrote:
> On Fri, Mar 05, 2021 at 11:38:51AM -0800, Matthias Kaehlcke wrote:
> > Code for platform_device_create() and of_platform_device_create() is
>
> You mean of_platform_device_create and of_platform_device_destroy?
>
> Does of_platform_populate not work in your usecase?
of_platform_populate() would create a platform device for every node
under the USB controller or hub. While this could be restricted with
the 'matches' parameter it would still create two platform devices for
a hub controller that provides separate USB 2 and USB 3 hubs.
When of_platform_device_create() is used the onboard hub driver can
help to decide for which node the platform device should be created.
> > only generated if CONFIG_OF_ADDRESS=y. Add stubs to avoid unresolved
> > symbols when CONFIG_OF_ADDRESS is not set.
> >
> > Signed-off-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
> > ---
> >
> > Changes in v6:
> > - patch added to the series
> >
> > include/linux/of_platform.h | 22 ++++++++++++++++++----
> > 1 file changed, 18 insertions(+), 4 deletions(-)
> >
> > diff --git a/include/linux/of_platform.h b/include/linux/of_platform.h
> > index 84a966623e78..d15b6cd5e1c3 100644
> > --- a/include/linux/of_platform.h
> > +++ b/include/linux/of_platform.h
> > @@ -61,16 +61,18 @@ static inline struct platform_device *of_find_device_by_node(struct device_node
> > }
> > #endif
> >
> > +extern int of_platform_bus_probe(struct device_node *root,
> > + const struct of_device_id *matches,
> > + struct device *parent);
> > +
> > +#ifdef CONFIG_OF_ADDRESS
> > /* Platform devices and busses creation */
> > extern struct platform_device *of_platform_device_create(struct device_node *np,
> > const char *bus_id,
> > struct device *parent);
> >
> > extern int of_platform_device_destroy(struct device *dev, void *data);
> > -extern int of_platform_bus_probe(struct device_node *root,
> > - const struct of_device_id *matches,
> > - struct device *parent);
> > -#ifdef CONFIG_OF_ADDRESS
> > +
> > extern int of_platform_populate(struct device_node *root,
> > const struct of_device_id *matches,
> > const struct of_dev_auxdata *lookup,
> > @@ -84,6 +86,18 @@ extern int devm_of_platform_populate(struct device *dev);
> >
> > extern void devm_of_platform_depopulate(struct device *dev);
> > #else
> > +/* Platform devices and busses creation */
> > +static inline struct platform_device *of_platform_device_create(struct device_node *np,
> > + const char *bus_id,
> > + struct device *parent)
> > +{
> > + return NULL;
> > +}
> > +static inline int of_platform_device_destroy(struct device *dev, void *data)
> > +{
> > + return -ENODEV;
> > +}
> > +
> > static inline int of_platform_populate(struct device_node *root,
> > const struct of_device_id *matches,
> > const struct of_dev_auxdata *lookup,
> > --
> > 2.30.1.766.gb4fecdf3b7-goog
> >
