linux-kernel - Re: [PATCH v4] irqchip: gic: Allow interrupt level to be set for PPIs.

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Date:	Sat, 24 Jan 2015 18:15:23 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Marc Zyngier <marc.zyngier@....com>
cc:	Liviu Dudau <Liviu.Dudau@....com>,
	Russell King <linux@....linux.org.uk>,
	Rob Herring <robh+dt@...nel.org>,
	Mark Rutland <Mark.Rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Jason Cooper <jason@...edaemon.net>,
	Haojian Zhuang <haojian.zhuang@...aro.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	LAKML <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v4] irqchip: gic: Allow interrupt level to be set for
 PPIs.

On Thu, 22 Jan 2015, Marc Zyngier wrote:

> On Tue, Jan 20 2015 at  4:52:59 pm GMT, Liviu Dudau <Liviu.Dudau@....com> wrote:
> > During a recent cleanup of the arm64 DTs it has become clear that
> > the handling of PPIs in xxxx_set_type() is incorrect. The ARM TRMs
> > for GICv2 and later allow for "implementation defined" support for
> > setting the edge or level type of the PPI interrupts and don't restrict
> > the activation level of the signal. Current ARM implementations
> > do restrict the PPI level type to IRQ_TYPE_LEVEL_LOW, but licensees
> > of the IP can decide to shoot themselves in the foot at any time.
> >
> > Signed-off-by: Liviu Dudau <Liviu.Dudau@....com>
> 
> For the GIC and GICv3 parts:
> 
> Acked-by: Marc Zyngier <marc.zyngier@....com>

So I queue that if there are no further objections from Russell or the
DT folks.

Thanks,

	tglx
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