linux-kernel - Re: [PATCH 2/2] usb: musb: dsps: Fix vbus vs tps65217-charger irq conflict

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Message-ID: <2023082228-usable-strike-7f73@gregkh>
Date:   Tue, 22 Aug 2023 20:46:06 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Grant Adams <nemith592@...il.com>
Cc:     linux-omap@...r.kernel.org, tony@...mide.com,
        Sebastian Reichel <sre@...nel.org>, Bin Liu <b-liu@...com>,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org
Subject: Re: [PATCH 2/2] usb: musb: dsps: Fix vbus vs tps65217-charger irq
 conflict

On Tue, Aug 22, 2023 at 08:20:56PM +0200, Grant Adams wrote:
> On Tue, Aug 22, 2023 at 4:42 PM Greg Kroah-Hartman <
> gregkh@...uxfoundation.org> wrote:
> 
> > On Tue, Aug 22, 2023 at 03:22:02PM +0200, Grant B Adams wrote:
> > > Enabling the tps65217-charger driver/module causes an interrupt conflict
> > > with the vbus driver resulting in a probe failure.
> > > The conflict is resolved by changing both driver's threaded interrupt
> > > request function from IRQF_ONESHOT to IRQF_SHARED.
> > >
> > > Signed-off-by: Grant B Adams <nemith592@...il.com>
> > > ---
> > >  drivers/usb/musb/musb_dsps.c | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
> > > index 9119b1d51370..cbb45de5a76f 100644
> > > --- a/drivers/usb/musb/musb_dsps.c
> > > +++ b/drivers/usb/musb/musb_dsps.c
> > > @@ -851,7 +851,7 @@ static int dsps_setup_optional_vbus_irq(struct
> > platform_device *pdev,
> > >
> > >       error = devm_request_threaded_irq(glue->dev, glue->vbus_irq,
> > >                                         NULL, dsps_vbus_threaded_irq,
> > > -                                       IRQF_ONESHOT,
> > > +                                       IRQF_SHARED,
> > >                                         "vbus", glue);
> > >       if (error) {
> > >               glue->vbus_irq = 0;
> > > --
> > > 2.34.1
> > >
> >
> > Why is the patch here talking about the tps65217-charger driver?  That's
> > totally independent.
> >
> > Also, your patches are not threaded, how did you send them?  Are they
> > related in some way or not?
> >
> > thanks,
> >
> > greg k-h
> >
> 
> Apologies Greg,
> 
> This is my first patch and did not know about creating email threads for
> multiple patches. I'll create an email thread for the patches and will
> provide
> an overview and better context in [PATCH 0/2].

That would be great, be sure to number this a v2 patch series as the
documentation asks for as well :)

good luck!

greg k-h