> -Original Message-
> From: Peter Chen
> Sent: 2019年8月7日 10:41
> To: Jun Li ; Peter Chen
> Cc: Greg Kroah-Hartman ; dl-linux-imx
> ; USB list
> Subject: RE: [PATCH 2/5] usb: chipidea: add role switch class support
>
>
>
> > >
> > >
> >
> >
> > > >
> > > > You may use connect bit at portsc since VBUS may not connect to SoC.
> > >
> > > By this way, disconnect can be decided but connect is a problem in
> > > current driver, as controller was stopped in low power mode so can't
> > > detect connection from host, unless we also
> -Original Message-
> From: Peter Chen
> Sent: 2019年8月6日 15:52
> To: Jun Li ; Peter Chen
> Cc: Greg Kroah-Hartman ; dl-linux-imx
> ; USB list
> Subject: RE: [PATCH 2/5] usb: chipidea: add role switch class support
>
>
> > >
> > > You may
> >
> > You may use connect bit at portsc since VBUS may not connect to SoC.
>
> By this way, disconnect can be decided but connect is a problem in current
> driver,
> as controller was stopped in low power mode so can't detect connection from
> host,
> unless we also update this behavior too.
Hi
> -Original Message-
> From: Peter Chen
> Sent: 2019年8月5日 12:57
> To: Jun Li ; Peter Chen
> Cc: Greg Kroah-Hartman ; dl-linux-imx
> ; USB list
> Subject: RE: [PATCH 2/5] usb: chipidea: add role switch class support
>
>
> > > > > > US
> > > > > USB role is fully controlled by usb role switch consumer(e.g.
> > > > > typec), usb port either at host mode, or at device connected
> > > > > mode, will not stay at USB_ROLE_NONE mode.
> > > > >
> > > >
> > > > Then, if the Type-C cable is disconnected from PC host, the
> > > > control
> -Original Message-
> From: Peter Chen
> Sent: 2019年8月5日 11:15
> To: Jun Li
> Cc: Peter Chen ; Greg Kroah-Hartman
> ; dl-linux-imx ; USB list
>
> Subject: Re: [PATCH 2/5] usb: chipidea: add role switch class support
>
> > >
> > > >
> >
> > > USB role is fully controlled by usb role switch consumer(e.g. typec),
> > > usb port either at host mode, or at device connected mode, will not
> > > stay at USB_ROLE_NONE mode.
> > >
> >
> > Then, if the Type-C cable is disconnected from PC host, the controller
> > driver can't be
> > n
> -Original Message-
> From: Peter Chen
> Sent: 2019年8月2日 17:41
> To: Jun Li
> Cc: Peter Chen ; Greg Kroah-Hartman
> ; dl-linux-imx ; USB list
>
> Subject: Re: [PATCH 2/5] usb: chipidea: add role switch class support
>
> > USB role is fully controlle
> USB role is fully controlled by usb role switch consumer(e.g. typec),
> usb port either at host mode, or at device connected mode, will not
> stay at USB_ROLE_NONE mode.
>
Then, if the Type-C cable is disconnected from PC host, the controller
driver can't be notified?If that, how controller ente
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