linux-kernel - Re: [PATCH v2 1/6] dt-bindings: interrupt-controller: add DT binding for the Marvell GICP

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Message-ID: <20170608141023.37759527@free-electrons.com>
Date:   Thu, 8 Jun 2017 14:10:23 +0200
From:   Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
To:     Rob Herring <robh@...nel.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <marc.zyngier@....com>,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Ian Campbell <ijc+devicetree@...lion.org.uk>,
        Pawel Moll <pawel.moll@....com>,
        Mark Rutland <mark.rutland@....com>,
        Kumar Gala <galak@...eaurora.org>,
        Andrew Lunn <andrew@...n.ch>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Gregory Clement <gregory.clement@...e-electrons.com>,
        Nadav Haklai <nadavh@...vell.com>,
        Hanna Hawa <hannah@...vell.com>,
        Yehuda Yitschak <yehuday@...vell.com>,
        Antoine Tenart <antoine.tenart@...e-electrons.com>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 1/6] dt-bindings: interrupt-controller: add DT
 binding for the Marvell GICP

Hello,

On Wed, 7 Jun 2017 17:24:20 -0500, Rob Herring wrote:
> On Fri, Jun 02, 2017 at 12:06:52PM +0200, Thomas Petazzoni wrote:
> > This commit adds the Device Tree binding documentation for the Marvell
> > GICP, an extension to the GIC that allows to trigger GIC SPI interrupts
> > using memory transactions. It is used by the ICU unit in the Marvell
> > CP110 block to turn wired interrupts inside the CP into SPI interrupts
> > at the GIC level in the AP.  
> 
> Sounds like an MSI block?

Marc Zyngier answered on this (much better than I could have done).

> > +- marvell,spi-ranges: tuples of GIC SPI interrupts ranges available
> > +  for this GICP  
> 
> These are base+size?

Correct. Does your question suggest that I should update the binding
document to make this explicit?

Thanks,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com