From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jon Hunter Subject: [PATCH V4 8/9] dt-bindings: arm-gic: Add documentation for Tegra210 AGIC Date: Thu, 12 May 2016 16:19:31 +0100 Message-ID: <1463066372-13115-9-git-send-email-jonathanh@nvidia.com> References: <1463066372-13115-1-git-send-email-jonathanh@nvidia.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1463066372-13115-1-git-send-email-jonathanh-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Thomas Gleixner , Jason Cooper , Marc Zyngier , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Stephen Warren , Thierry Reding Cc: Kevin Hilman , Geert Uytterhoeven , Grygorii Strashko , Lars-Peter Clausen , Linus Walleij , linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Jon Hunter List-Id: linux-tegra@vger.kernel.org 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 --- Documentation/devicetree/bindings/interrupt-controller/arm,gic.txt | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/interrupt-controller/arm,gic.txt b/Documentation/devicetree/bindings/interrupt-controller/arm,gic.txt index 793c20ff8fcc..5393e2a45a42 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 @@ -68,7 +69,7 @@ Optional "ic_clk" (for "arm,arm11mp-gic") "PERIPHCLKEN" (for "arm,cortex-a15-gic") "PERIPHCLK", "PERIPHCLKEN" (for "arm,cortex-a9-gic") - "clk" (for "arm,gic-400") + "clk" (for "arm,gic-400" and "nvidia,tegra210") "gclk" (for "arm,pl390") - power-domains : A phandle and PM domain specifier as defined by bindings of -- 2.1.4