linux-kernel - [PATCH 1/2] devicetree: add binding for Sigma Designs SMP86xx interrupt controller

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Date:	Thu, 19 Nov 2015 18:33:45 +0000
From:	Mans Rullgard <mans@...sr.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>,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: [PATCH 1/2] devicetree: add binding for Sigma Designs SMP86xx interrupt controller

This adds a binding for the secondary interrupt controller in
Sigma Designs SMP86xx and SMP87xx chips.

Signed-off-by: Mans Rullgard <mans@...sr.com>
---
 .../interrupt-controller/sigma,smp8642-intc.txt    | 47 ++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/sigma,smp8642-intc.txt

diff --git a/Documentation/devicetree/bindings/interrupt-controller/sigma,smp8642-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/sigma,smp8642-intc.txt
new file mode 100644
index 0000000..f82cddf
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/sigma,smp8642-intc.txt
@@ -0,0 +1,47 @@
+Sigma Designs SMP86xx/SMP87xx secondary interrupt controller
+
+Required properties:
+- compatible: should be "sigma,smp8642-intc"
+- reg: physical address of MMIO region
+- interrupt-parent: phandle of parent interrupt controller
+- interrupt-controller: boolean
+
+One child node per control block with properties:
+- sigma,reg-offset: offset of registers from main base address
+- interrupt-controller: boolean
+- #interrupt-cells: should be <2>, interrupt index and flags per interrupts.txt
+- interrupts: interrupt spec of primary interrupt controller
+- label: (optional) name for display purposes
+
+Example:
+
+intc: interrupt-controller@...00 {
+	compatible = "sigma,smp8642-intc";
+	reg = <0x6e000 0x400>;
+	interrupt-parent = <&gic>;
+	interrupt-controller;
+
+	irq0: irq0 {
+		sigma,reg-offset = <0x000>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
+		label = "IRQ0";
+	};
+
+	irq1: irq1 {
+		sigma,reg-offset = <0x100>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
+		label = "IRQ1";
+	};
+
+	irq2: irq2 {
+		sigma,reg-offset = <0x300>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+		label = "IRQ2";
+	};
+};
-- 
2.6.3

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