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

Commit Message

Joakim Zhang Dec. 19, 2019, 10:21 a.m. UTC

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

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

Patch

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@37400000 {
+		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>;
+	};
+