linux-kernel - [PATCH V2 13/14] dt-bindings: arm-gic: Add documentation for Tegra210 AGIC

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Message-ID: <1461150237-15580-14-git-send-email-jonathanh@nvidia.com>
Date:	Wed, 20 Apr 2016 12:03:56 +0100
From:	Jon Hunter <jonathanh@...dia.com>
To:	Thomas Gleixner <tglx@...utronix.de>,
	Jason Cooper <jason@...edaemon.net>,
	Marc Zyngier <marc.zyngier@....com>,
	Rob Herring <robh+dt@...nel.org>,
	"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>
CC:	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>, <linux-omap@...r.kernel.org>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Jon Hunter <jonathanh@...dia.com>
Subject: [PATCH V2 13/14] dt-bindings: arm-gic: Add documentation for Tegra210 AGIC

The Tegra AGIC interrupt controller is compatible with the ARM GIC-400
interrupt controller. The Tegra AGIC requires two clocks, namely the
"ape" (functional) and "apb2ape" (interface) clocks, to operate. 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>
---

I am not sure if it will be popular to add Tegra specific clock names
to the GIC DT docs. However, in that case, then possibly the only
alternative is to move the Tegra AGIC driver into its own file and
expose the GIC APIs for it to use. Then we could add our own DT doc
for the Tegra AGIC as well (based upon the ARM GIC).

 Documentation/devicetree/bindings/interrupt-controller/arm,gic.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/interrupt-controller/arm,gic.txt b/Documentation/devicetree/bindings/interrupt-controller/arm,gic.txt
index 793c20ff8fcc..6f34267f1438 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/arm,gic.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/arm,gic.txt
@@ -21,6 +21,7 @@ Main node required properties:
 	"arm,pl390"
 	"arm,tc11mp-gic"
 	"brcm,brahma-b15-gic"
+	"nvidia,tegra210-agic"
 	"qcom,msm-8660-qgic"
 	"qcom,msm-qgic2"
 - interrupt-controller : Identifies the node as an interrupt controller
@@ -70,6 +71,7 @@ Optional
 	"PERIPHCLK", "PERIPHCLKEN" (for "arm,cortex-a9-gic")
 	"clk" (for "arm,gic-400")
 	"gclk" (for "arm,pl390")
+	"ape" and "apb2ape" (for "nvidia,tegra,agic")
 
 - power-domains : A phandle and PM domain specifier as defined by bindings of
 		  the power controller specified by phandle, used when the GIC
-- 
2.1.4