linux-kernel - Re: [PATCH V1 1/1] usb/host: To get "usb3-slow-suspend" property, then to set xhci quirks

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Date:   Fri, 22 Apr 2022 10:40:33 +0800
From:   surong pang <surong.pang@...il.com>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     mathias.nyman@...el.com, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org, Orson.Zhai@...soc.com,
        yunguo.wu@...soc.com
Subject: Re: [PATCH V1 1/1] usb/host: To get "usb3-slow-suspend" property,
 then to set xhci quirks

We need to abandon this patch.

Greg KH <gregkh@...uxfoundation.org> 于2022年4月22日周五 00:41写道：
>
> On Tue, Apr 12, 2022 at 10:59:52AM +0800, Surong Pang wrote:
> > From: Surong Pang <surong.pang@...soc.com>
> >
> > To set xhci->quirks value according to "usb3-slow-suspend" property
> >
> > Signed-off-by: Surong Pang <surong.pang@...soc.com>
> > ---
> >  drivers/usb/host/xhci-plat.c | 3 +++
> >  1 file changed, 3 insertions(+)
> >
> > diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
> > index 649ffd861b44..6bc456bc6468 100644
> > --- a/drivers/usb/host/xhci-plat.c
> > +++ b/drivers/usb/host/xhci-plat.c
> > @@ -302,6 +302,9 @@ static int xhci_plat_probe(struct platform_device *pdev)
> >               if (device_property_read_bool(tmpdev, "usb3-lpm-capable"))
> >                       xhci->quirks |= XHCI_LPM_SUPPORT;
> >
> > +             if (device_property_read_bool(tmpdev, "usb3-slow-suspend"))
> > +                     xhci->quirks |= XHCI_SLOW_SUSPEND;
>
> Device properties need to be documented somewhere.
>