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Date: Mon, 16 May 2016 11:05:47 -0500
From: Rob Herring <robh@kernel.org>
To: Jon Hunter <jonathanh@nvidia.com>
Cc: Thomas Gleixner <tglx@linutronix.de>, Jason Cooper <jason@lakedaemon.net>,
        Marc Zyngier <marc.zyngier@arm.com>, Pawel Moll <pawel.moll@arm.com>,
        Mark Rutland <mark.rutland@arm.com>,
        Ian Campbell <ijc+devicetree@hellion.org.uk>,
        Kumar Gala <galak@codeaurora.org>,
        Stephen Warren <swarren@wwwdotorg.org>,
        Thierry Reding <thierry.reding@gmail.com>,
        Kevin Hilman <khilman@kernel.org>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Grygorii Strashko <grygorii.strashko@ti.com>,
        Lars-Peter Clausen <lars@metafoo.de>,
        Linus Walleij <linus.walleij@linaro.org>, linux-tegra@vger.kernel.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH V4 8/9] dt-bindings: arm-gic: Add documentation for
 Tegra210 AGIC
Message-ID: <20160516160547.GA6402@rob-hp-laptop>
References: <1463066372-13115-1-git-send-email-jonathanh@nvidia.com>
 <1463066372-13115-9-git-send-email-jonathanh@nvidia.com>
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On Thu, May 12, 2016 at 04:19:31PM +0100, Jon Hunter wrote:
> The Tegra AGIC is an interrupt controller that is compatible with the
> ARM GIC-400, however, it is a 2nd level controller and requires runtime
> power-management because it is outside the main CPU complex. Ideally,
> the AGIC would use the existing "arm,gic-400" compatibility string, but
> because of the power management requirements it cannot be initialised
> early and is initialised by a platform driver. Therefore, to distinguish
> between the Tegra AGIC and a normal GIC-400, and to ensure that the
> appropriate driver initialises the AGIC, add the compatible string and
> clock information for the AGIC to the GIC device-tree binding
> documentation.
> 
> Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
> ---
>  Documentation/devicetree/bindings/interrupt-controller/arm,gic.txt | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)

Acked-by: Rob Herring <robh@kernel.org>