Re: [PATCH v4 07/10] dt-bindings: mips: Add loongson boards

[Rob Herring]

On Fri, Feb 21, 2020 at 01:09:22PM +0800, Jiaxun Yang wrote:
> Prepare for later dts.
> 
> Signed-off-by: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
> ---
>  .../bindings/mips/loongson/devices.yaml       | 29 +++++++++++++++++++
>  1 file changed, 29 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mips/loongson/devices.yaml
> 
> diff --git a/Documentation/devicetree/bindings/mips/loongson/devices.yaml b/Documentation/devicetree/bindings/mips/loongson/devices.yaml
> new file mode 100644
> index 000000000000..32bec784da87
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mips/loongson/devices.yaml
> @@ -0,0 +1,29 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mips/loongson/devices.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Loongson based Platforms Device Tree Bindings
> +
> +maintainers:
> +  - Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
> +description: |
> +  Devices with a Loongson CPU shall have the following properties.

Perhaps some details about the platform.

> +  Note that generic device is used for built-in dtbs and will be
> +  patched during boot on firmware without OF support.

That's a kernel detail that doesn't belong here. (BTW, built-in dtb 
support is intended as a transition step for bootloaders without dtb 
knowledge. It's not the recommended way and shouldn't be used on new 
platforms).

> +
> +properties:
> +  $nodename:
> +    const: '/'
> +  compatible:
> +    oneOf:
> +
> +      - description: Generic Loongson3 4Core + RS780E
> +        items:
> +          - const: loongson,loongson3-4core-rs780e
> +
> +      - description: Generic Loongson3 8Core + RS780E
> +        items:
> +          - const: loongson,loongson3-8core-rs780e
> +...
> -- 
> 2.25.0
> 
>