Re: [PATCH v4] usb: ohci-at91: Forcibly suspend ports while USB suspend

From: Alan Stern
Date: Tue Jun 21 2016 - 11:54:08 EST


On Tue, 21 Jun 2016, Nicolas Ferre wrote:

> Le 21/06/2016 03:32, Wenyou Yang a éit :
> > In order to save power consumption, as a workaround, forcibly suspend
> > the USB PORTA/B/C via setting the SUSPEND_A/B/C bits of OHCI Interrupt
> > Configuration Register in the SFR while OHCI USB suspend.
> >
> > This suspend operation must be done before the USB clock is disabled,
> > resume after the USB clock is enabled.
> >
> > Signed-off-by: Wenyou Yang <wenyou.yang@xxxxxxxxx>
>
> Acked-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>
>
> Alan, can you take it as it doesn't have dependency on the at91 material
> anymore.

Sorry, I will not accept this patch until Wenyou Yang answers the
questions I raised in

http://marc.info/?l=linux-usb&m=146307669102601&w=2

and

http://marc.info/?l=linux-usb&m=146541324027407&w=2

Alan Stern