Commit 6248d8cc authored by Rob Herring (Arm)'s avatar Rob Herring (Arm)
Browse files

dt-bindings: interrupt-controller: Convert ti,omap4-wugen-mpu to DT schema 

Convert the TI Wakeup Generator interrupt controller binding to schema
format. It's a straight-forward conversion of the typical interrupt
controller.

Link: https://lore.kernel.org/r/20250505144913.1293967-1-robh@kernel.org


Signed-off-by: default avatarRob Herring (Arm) <robh@kernel.org>
parent 94555704

Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu.txt

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TI OMAP4 Wake-up Generator



All TI OMAP4/5 (and their derivatives) an interrupt controller that

routes interrupts to the GIC, and also serves as a wakeup source. It

is also referred to as "WUGEN-MPU", hence the name of the binding.



Required properties:



- compatible : should contain at least "ti,omap4-wugen-mpu" or

  "ti,omap5-wugen-mpu"

- reg : Specifies base physical address and size of the registers.

- 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 3.



Notes:



- Because this HW ultimately routes interrupts to the GIC, the

  interrupt specifier must be that of the GIC.

- Only SPIs can use the WUGEN as an interrupt parent. SGIs and PPIs

  are explicitly forbidden.



Example:



       wakeupgen: interrupt-controller@48281000 {

               compatible = "ti,omap5-wugen-mpu", "ti,omap4-wugen-mpu";

               interrupt-controller;

               #interrupt-cells = <3>;

               reg = <0x48281000 0x1000>;

               interrupt-parent = <&gic>;

       };

Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/interrupt-controller/ti,omap4-wugen-mpu.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: TI OMAP4 Wake-up Generator



maintainers:

  - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>



description: >

  All TI OMAP4/5 (and their derivatives) are interrupt controllers that route

  interrupts to the GIC, and also serve as wakeup sources. They are also

  referred to as "WUGEN-MPU", hence the name of the binding.



  Notes:



    - Because this HW ultimately routes interrupts to the GIC, the interrupt

      specifier must be that of the GIC.

    - Only SPIs can use the WUGEN as an interrupt parent. SGIs and PPIs are

      explicitly forbidden.



properties:

  compatible:

    oneOf:

      - items:

          - const: ti,omap5-wugen-mpu

          - const: ti,omap4-wugen-mpu

      - const: ti,omap4-wugen-mpu



  reg:

    maxItems: 1



  interrupt-controller: true



  '#interrupt-cells':

    const: 3



required:

  - compatible

  - reg

  - interrupt-controller

  - '#interrupt-cells'



additionalProperties: false



examples:

  - |

    interrupt-controller@48281000 {

        compatible = "ti,omap5-wugen-mpu", "ti,omap4-wugen-mpu";

        reg = <0x48281000 0x1000>;

        interrupt-controller;

        #interrupt-cells = <3>;

    };