This adds device tree bindings for the IXP4xx interrupt controller. It's a standard 2-cell controller. Cc: Marc Zyngier <marc.zyngier@xxxxxxx> Cc: Jason Cooper <jason@xxxxxxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: devicetree@xxxxxxxxxxxxxxx Reviewed-by: Rob Herring <robh@xxxxxxxxxx> Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx> --- ChangeLog v2->v3: - Dropped oneOf on compatible - Dropped description on reg, set maxItems 1 - Drop the description on interrupt-cells - Collect Rob's review tag ChangeLog v1->v2: - Converted to use JSON yaml schema, why not. - Not keeping Rob's ACK because I think he wants to take a second look. --- .../intel,ixp4xx-interrupt.yaml | 54 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 55 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/intel,ixp4xx-interrupt.yaml diff --git a/Documentation/devicetree/bindings/interrupt-controller/intel,ixp4xx-interrupt.yaml b/Documentation/devicetree/bindings/interrupt-controller/intel,ixp4xx-interrupt.yaml new file mode 100644 index 000000000000..bae10e261fa9 --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/intel,ixp4xx-interrupt.yaml @@ -0,0 +1,54 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright 2018 Linaro Ltd. +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/interrupt/intel-ixp4xx-interrupt.yaml#"; +$schema: "http://devicetree.org/meta-schemas/core.yaml#"; + +title: Intel IXP4xx XScale Networking Processors Interrupt Controller + +maintainers: + - Linus Walleij <linus.walleij@xxxxxxxxxx> + +description: | + This interrupt controller is found in the Intel IXP4xx processors. + Some processors have 32 interrupts, some have up to 64 interrupts. + The exact number of interrupts is determined from the compatible + string. + + The distinct IXP4xx families with different interrupt controller + variations are IXP42x, IXP43x, IXP45x and IXP46x. Those four + families were the only ones to reach the developer and consumer + market. + +properties: + compatible: + items: + - enum: + - intel,ixp42x-interrupt + - intel,ixp43x-interrupt + - intel,ixp45x-interrupt + - intel,ixp46x-interrupt + + reg: + maxItems: 1 + + interrupt-controller: true + + '#interrupt-cells': + const: 2 + +required: + - compatible + - reg + - interrupt-controller + - '#interrupt-cells' + +examples: + - | + intcon: interrupt-controller@c8003000 { + compatible = "intel,ixp43x-interrupt"; + reg = <0xc8003000 0x100>; + interrupt-controller; + #interrupt-cells = <2>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index bc918f318797..ad05704fbd68 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1690,6 +1690,7 @@ M: Imre Kaloz <kaloz@xxxxxxxxxxx> M: Krzysztof Halasa <khalasa@xxxxxxx> L: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx (moderated for non-subscribers) S: Maintained +F: Documentation/devicetree/bindings/interrupt-controller/intel,ixp4xx-interrupt.yaml F: arch/arm/mach-ixp4xx/ F: drivers/clocksource/timer-ixp4xx.c F: drivers/gpio/gpio-ixp4xx.c -- 2.20.1
