[PATCH][UPSTEAM] powerpc/mpic: add irq_set_wake support
Scott Wood
scottwood at freescale.com
Wed Mar 20 03:00:00 EST 2013
On 03/19/2013 02:10:38 AM, Wang Dongsheng-B40534 wrote:
>
>
> > -----Original Message-----
> > From: Wood Scott-B07421
> > Sent: Tuesday, March 19, 2013 7:36 AM
> > To: Wang Dongsheng-B40534
> > Cc: linuxppc-dev at lists.ozlabs.org; galak at kernel.crashing.org
> > Subject: Re: [PATCH][UPSTEAM] powerpc/mpic: add irq_set_wake support
> >
> > On 01/30/2013 09:10:23 PM, Wang Dongsheng wrote:
> > > Add irq_set_wake support. Just add IRQF_NO_SUSPEND to
> > > desc->action->flag.
> > > So the wake up interrupt will not be disable in
> suspend_device_irqs.
> > >
> > > Signed-off-by: Wang Dongsheng <dongsheng.wang at freescale.com>
> > > ---
> > > arch/powerpc/sysdev/mpic.c | 15 +++++++++++++++
> > > 1 files changed, 15 insertions(+), 0 deletions(-)
> > >
> > > diff --git a/arch/powerpc/sysdev/mpic.c
> b/arch/powerpc/sysdev/mpic.c
> > > index 9c6e535..2ed0220 100644
> > > --- a/arch/powerpc/sysdev/mpic.c
> > > +++ b/arch/powerpc/sysdev/mpic.c
> > > @@ -920,6 +920,18 @@ int mpic_set_irq_type(struct irq_data *d,
> > > unsigned int flow_type)
> > > return IRQ_SET_MASK_OK_NOCOPY;
> > > }
> > >
> > > +static int mpic_irq_set_wake(struct irq_data *d, unsigned int on)
> > > +{
> > > + struct irq_desc *desc = container_of(d, struct irq_desc,
> > > irq_data);
> > > +
> > > + if (on)
> > > + desc->action->flags |= IRQF_NO_SUSPEND;
> > > + else
> > > + desc->action->flags &= ~IRQF_NO_SUSPEND;
> > > +
> > > + return 0;
> > > +}
> >
> > This should really be something like fsl_mpic_irq_set_wake() and
> only
> > set when we have an FSL MPIC.
> >
> Thanks, Add "#ifdef FSL_SOC" to control.
That's not what I meant. Check "mpic->flags & MPIC_FSL".
-Scott
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