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Message-Id: <20190502123220.3016-2-geert+renesas@glider.be>
Date:   Thu,  2 May 2019 14:32:16 +0200
From:   Geert Uytterhoeven <geert+renesas@...der.be>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <marc.zyngier@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Simon Horman <horms@...ge.net.au>,
        Magnus Damm <magnus.damm@...il.com>,
        Chris Brandt <chris.brandt@...esas.com>
Cc:     devicetree@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Geert Uytterhoeven <geert+renesas@...der.be>
Subject: [PATCH v3 1/5] dt-bindings: interrupt-controller: Add Renesas RZ/A1 Interrupt Controller

Add DT bindings for the Renesas RZ/A1 Interrupt Controller.

Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
---
v3:
  - Use interrupt-map (+ #address-cells and interrupt-map-mask) instead
    of renesas,gic-spi-base,

v2:
  - Add "renesas,gic-spi-base",
  - Document RZ/A2M.
---
 .../renesas,rza1-irqc.txt                     | 43 +++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/renesas,rza1-irqc.txt

diff --git a/Documentation/devicetree/bindings/interrupt-controller/renesas,rza1-irqc.txt b/Documentation/devicetree/bindings/interrupt-controller/renesas,rza1-irqc.txt
new file mode 100644
index 0000000000000000..727b7e4cd6e01110
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/renesas,rza1-irqc.txt
@@ -0,0 +1,43 @@
+DT bindings for the Renesas RZ/A1 Interrupt Controller
+
+The RZ/A1 Interrupt Controller is a front-end for the GIC found on Renesas
+RZ/A1 and RZ/A2 SoCs:
+  - IRQ sense select for 8 external interrupts, 1:1-mapped to 8 GIC SPI
+    interrupts,
+  - NMI edge select.
+
+Required properties:
+  - compatible: Must be "renesas,<soctype>-irqc", and "renesas,rza1-irqc" as
+		fallback.
+		Examples with soctypes are:
+		  - "renesas,r7s72100-irqc" (RZ/A1H)
+		  - "renesas,r7s9210-irqc" (RZ/A2M)
+  - #interrupt-cells: Must be 2 (an interrupt index and flags, as defined
+				 in interrupts.txt in this directory)
+  - #address-cells: Must be zero
+  - interrupt-controller: Marks the device as an interrupt controller
+  - reg: Base address and length of the memory resource used by the interrupt
+         controller
+  - interrupt-map: Specifies the mapping from external interrupts to GIC
+		   interrupts
+  - interrupt-map-mask: Must be <7 0>
+
+Example:
+
+	irqc: interrupt-controller@...ef800 {
+		compatible = "renesas,r7s72100-irqc", "renesas,rza1-irqc";
+		#interrupt-cells = <2>;
+		#address-cells = <0>;
+		interrupt-controller;
+		reg = <0xfcfef800 0x6>;
+		interrupt-map =
+			<0 0 &gic GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+			<1 0 &gic GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
+			<2 0 &gic GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+			<3 0 &gic GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
+			<4 0 &gic GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+			<5 0 &gic GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
+			<6 0 &gic GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+			<7 0 &gic GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-map-mask = <7 0>;
+	};
-- 
2.17.1

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