Re: [PATCH V2 1/2] dt-bindings: interrupt-controller: Add Loongson EIOINTC

From: Rob Herring
Date: Wed Feb 15 2023 - 14:51:50 EST


On Mon, Feb 13, 2023 at 08:15:27PM +0800, Binbin Zhou wrote:
> Add Loongson Extended I/O Interrupt controller binding with DT schema
> format using json-schema.
>
> Signed-off-by: Binbin Zhou <zhoubinbin@xxxxxxxxxxx>
> ---
> .../loongson,eiointc.yaml | 80 +++++++++++++++++++
> 1 file changed, 80 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/interrupt-controller/loongson,eiointc.yaml
>
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/loongson,eiointc.yaml b/Documentation/devicetree/bindings/interrupt-controller/loongson,eiointc.yaml
> new file mode 100644
> index 000000000000..88580297f955
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/interrupt-controller/loongson,eiointc.yaml
> @@ -0,0 +1,80 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/interrupt-controller/loongson,eiointc.yaml#";
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#";
> +
> +title: Loongson Extended I/O Interrupt Controller
> +
> +maintainers:
> + - Binbin Zhou <zhoubinbin@xxxxxxxxxxx>
> +
> +description: |
> + This interrupt controller is found on the Loongson-3 family chips and
> + Loongson-2K0500 chip and is used to distribute interrupts directly to
> + individual cores without forwarding them through the HT's interrupt line.
> +
> +allOf:
> + - $ref: /schemas/interrupt-controller.yaml#
> +
> +properties:
> + compatible:
> + enum:
> + - loongson,eiointc-1.0
> +
> + reg:
> + minItems: 1
> + maxItems: 3
> +
> + interrupt-controller: true
> +
> + interrupts:
> + description:
> + Interrupt source of the CPU interrupts.
> +
> + interrupt-names:
> + description:
> + List of names for the parent interrupts.
> + items:
> + - const: int0

Why do you need this if there is only 1 interrupt?

Rob