linux-kernel - [PATCH V2 1/2] dt-bindings/irq: add binding for NXP INTMUX interrupt multiplexer

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Date:   Thu, 19 Dec 2019 18:21:04 +0800
From:   Joakim Zhang <qiangqing.zhang@....com>
To:     tglx@...utronix.de, maz@...nel.org, jason@...edaemon.net,
        robh+dt@...nel.org, mark.rutland@....com, shawnguo@...nel.org,
        s.hauer@...gutronix.de
Cc:     kernel@...gutronix.de, linux-imx@....com,
        linux-kernel@...r.kernel.org, fugang.duan@....com,
        linux-arm-kernel@...ts.infradead.org,
        Joakim Zhang <qiangqing.zhang@....com>
Subject: [PATCH V2 1/2] dt-bindings/irq: add binding for NXP INTMUX interrupt multiplexer

This patch adds the DT bindings for the NXP INTMUX interrupt multiplexer
found in the i.MX8 family SoCs.

Signed-off-by: Joakim Zhang <qiangqing.zhang@....com>
---
 .../interrupt-controller/fsl,intmux.txt       | 28 +++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/fsl,intmux.txt

diff --git a/Documentation/devicetree/bindings/interrupt-controller/fsl,intmux.txt b/Documentation/devicetree/bindings/interrupt-controller/fsl,intmux.txt
new file mode 100644
index 000000000000..a9a16b5046c5
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/fsl,intmux.txt
@@ -0,0 +1,28 @@
+Freescale INTMUX interrupt multiplexer
+
+Required properties:
+
+- compatible: Should be:
+	- "fsl,imx-intmux"
+- reg: Physical base address and size of registers.
+- interrupts: Should contain one parent interrupt line used to multiplex the
+  input interrupt sources.
+- clocks: Should contain one clock for entry in clock-names.
+- clock-names:
+   - "ipg": main logic clock
+- interrupt-controller: Identifies the node as an interrupt controller.
+- #interrupt-cells: Specifies the number of cells needed to encode an
+  interrupt source. The value must be 1.
+
+Example:
+
+	intmux@...00000 {
+		compatible = "fsl,imx-intmux";
+		reg = <0x37400000 0x1000>;
+		interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&clk IMX8QM_CM40_IPG_CLK>;
+		clock-names = "ipg";
+		interrupt-controller;
+		#interrupt-cells = <1>;
+	};
+
-- 
2.17.1