linux-kernel - Re: [PATCH v2 5/9] dt-bindings: riscv: Add bouffalolab bl808 board compatibles

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Date:   Thu, 1 Dec 2022 12:05:04 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Jisheng Zhang <jszhang@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Conor Dooley <conor@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Cc:     linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org
Subject: Re: [PATCH v2 5/9] dt-bindings: riscv: Add bouffalolab bl808 board
 compatibles

On 27/11/2022 14:24, Jisheng Zhang wrote:
> Several SoMs and boards are available that feature the Bouffalolab
> bl808 SoC. Document the compatible strings.
> 
> Signed-off-by: Jisheng Zhang <jszhang@...nel.org>
> ---
>  .../bindings/riscv/bouffalolab.yaml           | 34 +++++++++++++++++++
>  1 file changed, 34 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/riscv/bouffalolab.yaml
> 
> diff --git a/Documentation/devicetree/bindings/riscv/bouffalolab.yaml b/Documentation/devicetree/bindings/riscv/bouffalolab.yaml
> new file mode 100644
> index 000000000000..91ca9dbdc798
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/riscv/bouffalolab.yaml
> @@ -0,0 +1,34 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/riscv/bouffalolab.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Bouffalo Lab Technology SoC-based boards
> +
> +maintainers:
> +  - Jisheng Zhang <jszhang@...nel.org>
> +
> +description:
> +  Bouffalo Lab Technology SoC-based boards
> +
> +properties:
> +  $nodename:
> +    const: '/'
> +  compatible:
> +    oneOf:
> +      - description: Sipeed M1s SoM:
> +        items:
> +          - const: sipeed,m1s
> +          - const: bouffalolab,bl808

I don't think that SoM is usable alone. It always needs a carrier, so
drop this entry.

Please run `make dt_binding_check` (see
Documentation/devicetree/bindings/writing-schema.rst for instructions).



Best regards,
Krzysztof