From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lucas Stach Subject: [PATCH v2 1/2] dt-bindings: irq: add binding for Freescale IRQSTEER multiplexer Date: Fri, 14 Dec 2018 11:22:43 +0100 Message-ID: <20181214102244.21509-2-l.stach@pengutronix.de> References: <20181214102244.21509-1-l.stach@pengutronix.de> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20181214102244.21509-1-l.stach@pengutronix.de> Sender: linux-kernel-owner@vger.kernel.org To: Thomas Gleixner , Jason Cooper , Marc Zyngier , Rob Herring , Mark Rutland Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, kernel@pengutronix.de, patchwork-lst@pengutronix.de List-Id: devicetree@vger.kernel.org This adds the DT binding for the Freescale IRQSTEER interrupt multiplexer found in the i.MX8 familiy SoCs. Signed-off-by: Lucas Stach --- .../interrupt-controller/fsl,irqsteer.txt | 34 +++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/fsl,irqsteer.txt diff --git a/Documentation/devicetree/bindings/interrupt-controller/fsl,irqsteer.txt b/Documentation/devicetree/bindings/interrupt-controller/fsl,irqsteer.txt new file mode 100644 index 000000000000..fd4aaa379993 --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/fsl,irqsteer.txt @@ -0,0 +1,34 @@ +Freescale IRQSTEER Interrupt multiplexer + +Required properties: + +- compatible: should be: + - "fsl,imx8m-irqsteer" + - "fsl,imx-irqsteer" +- reg: Physical base address and size of registers. +- interrupts: Should contain the parent interrupt line used to multiplex the + input interrupts. +- clocks: Should contain one clock for entry in clock-names + see Documentation/devicetree/bindings/clock/clock-bindings.txt +- 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 2. +- fsl,channel: The output channel that all input IRQs should be steered into. +- fsl,irq-groups: Number of IRQ groups managed by this controller instance. + Each group manages 64 input interrupts. + +Example: + + interrupt-controller@32e2d000 { + compatible = "fsl,imx8m-irqsteer", "fsl,imx-irqsteer"; + reg = <0x32e2d000 0x1000>; + interrupts = ; + clocks = <&clk IMX8MQ_CLK_DISP_APB_ROOT>; + clock-names = "ipg"; + fsl,channel = <1>; + fsl,irq-groups = <1>; + interrupt-controller; + #interrupt-cells = <2>; + }; -- 2.19.1