linux-kernel - Re: [PATCH 1/3] binding: irqchip: mtk-cirq: Add binding document

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Date:   Fri, 14 Oct 2016 16:23:29 +0800
From:   Youlin Pei <youlin.pei@...iatek.com>
To:     Matthias Brugger <matthias.bgg@...il.com>
CC:     Marc Zyngier <marc.zyngier@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Mark Rutland <mark.rutland@....com>,
        Russell King <linux@...linux.org.uk>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <srv_heupstream@...iatek.com>, <hongkun.cao@...iatek.com>,
        <yong.wu@...iatek.com>, <erin.lo@...iatek.com>
Subject: Re: [PATCH 1/3] binding: irqchip: mtk-cirq: Add binding document

Hi Matthias,
Thanks for your review.

On Thu, 2016-10-13 at 15:00 +0200, Matthias Brugger wrote:
> 
> On 10/13/2016 07:06 AM, Youlin Pei wrote:
> > This commit adds the device tree binding document for
> > the mediatek cirq.
> >
> > Signed-off-by: Youlin Pei <youlin.pei@...iatek.com>
> >
> > ---
> > base on v4.8-rc1
> > ---
> >  .../interrupt-controller/mediatek,cirq.txt         |   30 ++++++++++++++++++++
> >  1 file changed, 30 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/interrupt-controller/mediatek,cirq.txt
> >
> > diff --git a/Documentation/devicetree/bindings/interrupt-controller/mediatek,cirq.txt b/Documentation/devicetree/bindings/interrupt-controller/mediatek,cirq.txt
> > new file mode 100644
> > index 0000000..ad16953
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/interrupt-controller/mediatek,cirq.txt
> > @@ -0,0 +1,30 @@
> > +* Mediatek 27xx cirq
> > +
> > +In Mediatek SOCs, the CIRQ is a low power interrupt controller designed to
> > +works outside MCUSYS which comprises with Cortex-Ax cores,CCI and GIC.
> > +The external interrupts (outside MCUSYS) will feed through CIRQ and connect
> > +to GIC in MCUSYS. When CIRQ is enabled, it will record the edge-sensitive
> > +interrupts and generated a pulse signal to parent interrupt controller when
> > +flush command is executed. With CIRQ, MCUSYS can be completely turned off
> > +to improve the system power consumption without losing interrupts.
> > +
> > +Required properties:
> > +- compatible: should be: "mediatek,mt2701-cirq".
> 
> The cirq is present in several SoCs. I suppose it is the same core in 
> all of them. So we can name it mediatek,mtk-cirq and add a 
> mediatek,mtXXXX-cirq for every SoC, just in case we will need it.

Okay, will change it in next version. Thanks.

> 
> Thanks,
> Matthias
Thanks.
Youlin