RE: [PATCH 1/2] usb: chipiea: add flags for id and vbus from external block

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> >
> >
> > >  drivers/usb/chipidea/core.c  | 2 ++  include/linux/usb/chipidea.h |
> > > 4 ++++
> > >  2 files changed, 6 insertions(+)
> > >
> > > diff --git a/drivers/usb/chipidea/core.c
> > > b/drivers/usb/chipidea/core.c index
> > > 7bfcbb2..0bfa850 100644
> > > --- a/drivers/usb/chipidea/core.c
> > > +++ b/drivers/usb/chipidea/core.c
> > > @@ -706,6 +706,7 @@ static int ci_get_platdata(struct device *dev,
> > >  	cable->edev = ext_vbus;
> > >
> > >  	if (!IS_ERR(ext_vbus)) {
> > > +		platdata->ext_vbus = true;
> > >  		ret = extcon_get_state(cable->edev, EXTCON_USB);
> > >  		if (ret)
> > >  			cable->connected = true;
> > > @@ -718,6 +719,7 @@ static int ci_get_platdata(struct device *dev,
> > >  	cable->edev = ext_id;
> > >
> > >  	if (!IS_ERR(ext_id)) {
> > > +		platdata->ext_id = true;
> > >  		ret = extcon_get_state(cable->edev, EXTCON_USB_HOST);
> > >  		if (ret)
> > >  			cable->connected = true;
> > > diff --git a/include/linux/usb/chipidea.h
> > > b/include/linux/usb/chipidea.h index
> > > 911e05a..cd72d82 100644
> > > --- a/include/linux/usb/chipidea.h
> > > +++ b/include/linux/usb/chipidea.h
> > > @@ -70,6 +70,10 @@ struct ci_hdrc_platform_data {
> > >  	struct regulator	*reg_vbus;
> > >  	struct usb_otg_caps	ci_otg_caps;
> > >  	bool			tpl_support;
> > > +	/* ID state is from external event out side of USB */
> > > +	bool			ext_id;
> > > +	/* VBUS state is from external event out side of USB */
> > > +	bool			ext_vbus;
> >
> > We already have struct ci_hdrc_cable at this structure, please use it instead.
> 
> I am going to extend ci_hdrc_cable also for type-C case, which has no edev, So it's
> OK to add a flag in ci_hdrc_cable for both edev and type-C to indicate external
> block is used?
> 
 
Why there is no external cable (edev) for Type-C case? If there is no external cable
phandle at controller dts, how driver knows the Type-C connection occurs?

Peter





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