From: Lucas Stach <l.stach@pengutronix.de>
To: Thomas Gleixner <tglx@linutronix.de>,
Jason Cooper <jason@lakedaemon.net>,
Marc Zyngier <marc.zyngier@arm.com>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
kernel@pengutronix.de, patchwork-lst@pengutronix.de
Subject: [PATCH v2 1/2] dt-bindings: irq: add binding for Freescale IRQSTEER multiplexer
Date: Fri, 14 Dec 2018 11:22:43 +0100 [thread overview]
Message-ID: <20181214102244.21509-2-l.stach@pengutronix.de> (raw)
In-Reply-To: <20181214102244.21509-1-l.stach@pengutronix.de>
This adds the DT binding for the Freescale IRQSTEER interrupt
multiplexer found in the i.MX8 familiy SoCs.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
.../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 = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
+ 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
next prev parent reply other threads:[~2018-12-14 10:22 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-14 10:22 [PATCH v2 0/2] imx-irqsteer for real Lucas Stach
2018-12-14 10:22 ` Lucas Stach [this message]
2018-12-14 10:22 ` [PATCH v2 2/2] irqchip: add driver for imx-irqsteer controller Lucas Stach
2018-12-15 9:45 ` Marc Zyngier
2018-12-17 10:09 ` Lucas Stach
2018-12-17 10:32 ` Marc Zyngier
2018-12-17 13:52 ` Lucas Stach
2018-12-17 14:41 ` Marc Zyngier
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