linux-kernel - Re: [PATCH V4 8/9] dt-bindings: arm-gic: Add documentation for Tegra210 AGIC

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Date:	Mon, 16 May 2016 11:05:47 -0500
From:	Rob Herring <robh@...nel.org>
To:	Jon Hunter <jonathanh@...dia.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Jason Cooper <jason@...edaemon.net>,
	Marc Zyngier <marc.zyngier@....com>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Stephen Warren <swarren@...dotorg.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Kevin Hilman <khilman@...nel.org>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Grygorii Strashko <grygorii.strashko@...com>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Linus Walleij <linus.walleij@...aro.org>,
	linux-tegra@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH V4 8/9] dt-bindings: arm-gic: Add documentation for
 Tegra210 AGIC

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@...dia.com>
> ---
>  Documentation/devicetree/bindings/interrupt-controller/arm,gic.txt | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)

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