From: Tony Lindgren <tony@atomide.com>
To: Bhushan Shah <bshah@kde.org>
Cc: Bin Liu <b-liu@ti.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org, linux-omap@vger.kernel.org,
Merlijn Wajer <merlijn@wizzup.org>, Pavel Machek <pavel@ucw.cz>,
Sebastian Reichel <sre@kernel.org>,
clayton@craftyguy.net
Subject: Re: [PATCH] usb: musb: fix idling for suspend after disconnect interrupt
Date: Wed, 28 Oct 2020 10:42:22 +0200 [thread overview]
Message-ID: <20201028084222.GF5639@atomide.com> (raw)
In-Reply-To: <20201027075915.GA1064075@aquila.localdomain>
* Bhushan Shah <bshah@kde.org> [201027 07:59]:
> Hello!
>
> On Tue, Oct 27, 2020 at 08:17:41AM +0200, Tony Lindgren wrote:
> > Hmm maybe we're just missing the check for suspend here. Maybe
> > give the following untested patch a try?
> >
> > I'll give it a try here too but it might be few days.
>
> Thanks for quick patch! I tested this on my device and I can confirm
> that it fixes issue for me.
>
> So from my side,
>
> Tested-by: Bhushan Shah <bshah@kde.org>
OK good to hear :) Will post a proper patch after testing here too.
Regards,
Tony
> > Seems like we might be able to eventually simplify the suspend and
> > quirk check stuff, but let's fix the $subject issue first.
> >
> > Regards,
> >
> > Tony
> >
> > 8< ----------------------
> > diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
> > --- a/drivers/usb/musb/musb_core.c
> > +++ b/drivers/usb/musb/musb_core.c
> > @@ -2005,10 +2005,14 @@ static void musb_pm_runtime_check_session(struct musb *musb)
> > MUSB_DEVCTL_HR;
> > switch (devctl & ~s) {
> > case MUSB_QUIRK_B_DISCONNECT_99:
> > - musb_dbg(musb, "Poll devctl in case of suspend after disconnect\n");
> > - schedule_delayed_work(&musb->irq_work,
> > - msecs_to_jiffies(1000));
> > - break;
> > + if (musb->quirk_retries && !musb->flush_irq_work) {
> > + musb_dbg(musb, "Poll devctl in case of suspend after disconnect\n");
> > + schedule_delayed_work(&musb->irq_work,
> > + msecs_to_jiffies(1000));
> > + musb->quirk_retries--;
> > + break;
> > + }
> > + /* fall through */
> > case MUSB_QUIRK_B_INVALID_VBUS_91:
> > if (musb->quirk_retries && !musb->flush_irq_work) {
> > musb_dbg(musb,
>
> --
> Bhushan Shah
> http://blog.bshah.in
> IRC Nick : bshah on Freenode
> GPG key fingerprint : 0AAC 775B B643 7A8D 9AF7 A3AC FE07 8411 7FBC E11D
prev parent reply other threads:[~2020-10-29 2:05 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20191126034151.38154-1-tony@atomide.com>
2020-10-27 4:55 ` [PATCH] usb: musb: fix idling for suspend after disconnect interrupt Bhushan Shah
2020-10-27 6:17 ` Tony Lindgren
2020-10-27 7:59 ` Bhushan Shah
2020-10-28 8:42 ` Tony Lindgren [this message]
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