linux-kernel - Re: [PATCH v10 04/15] dt-bindings: spi: dw: Add AMD Pensando Elba SoC SPI Controller

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Date:   Mon, 6 Mar 2023 18:36:28 +0300
From:   Serge Semin <fancer.lancer@...il.com>
To:     Brad Larson <blarson@....com>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-mmc@...r.kernel.org, linux-spi@...r.kernel.org,
        adrian.hunter@...el.com, alcooperx@...il.com,
        andy.shevchenko@...il.com, arnd@...db.de,
        brendan.higgins@...ux.dev, briannorris@...omium.org,
        brijeshkumar.singh@....com, catalin.marinas@....com,
        davidgow@...gle.com, gsomlo@...il.com, gerg@...ux-m68k.org,
        krzk@...nel.org, krzysztof.kozlowski+dt@...aro.org, lee@...nel.org,
        lee.jones@...aro.org, broonie@...nel.org,
        yamada.masahiro@...ionext.com, p.zabel@...gutronix.de,
        piotrs@...ence.com, p.yadav@...com, rdunlap@...radead.org,
        robh+dt@...nel.org, samuel@...lland.org, skhan@...uxfoundation.org,
        suravee.suthikulpanit@....com, thomas.lendacky@....com,
        tonyhuang.sunplus@...il.com, ulf.hansson@...aro.org,
        vaishnav.a@...com, will@...nel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v10 04/15] dt-bindings: spi: dw: Add AMD Pensando Elba
 SoC SPI Controller

On Sun, Mar 05, 2023 at 08:07:28PM -0800, Brad Larson wrote:
> The AMD Pensando Elba SoC has integrated the DW APB SPI Controller
> 
> Signed-off-by: Brad Larson <blarson@....com>

Looks good. Thanks!
Reviewed-by: Serge Semin <fancer.lancer@...il.com>

-Serge(y)

> ---
> 
> v10 changes:
> - Move definition of amd,pensando-elba-syscon into properties
>   with a better description
> - Add amd,pensando-elba-syscon: false for non elba designs
> 
> v9 changes:
> - Define property amd,pensando-elba-syscon
> - Move compatible amd,pensando-elba-spi ahead of baikal,bt1-ssi
> 
> ---
>  .../bindings/spi/snps,dw-apb-ssi.yaml         | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
> index a132b5fc56e0..2383d6497b1e 100644
> --- a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
> +++ b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
> @@ -37,6 +37,17 @@ allOf:
>      else:
>        required:
>          - interrupts
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: amd,pensando-elba-spi
> +    then:
> +      required:
> +        - amd,pensando-elba-syscon
> +    else:
> +      properties:
> +        amd,pensando-elba-syscon: false
>  
>  properties:
>    compatible:
> @@ -63,6 +74,8 @@ properties:
>          const: intel,keembay-ssi
>        - description: Intel Thunder Bay SPI Controller
>          const: intel,thunderbay-ssi
> +      - description: AMD Pensando Elba SoC SPI Controller
> +        const: amd,pensando-elba-spi
>        - description: Baikal-T1 SPI Controller
>          const: baikal,bt1-ssi
>        - description: Baikal-T1 System Boot SPI Controller
> @@ -136,6 +149,12 @@ properties:
>        of the designware controller, and the upper limit is also subject to
>        controller configuration.
>  
> +  amd,pensando-elba-syscon:
> +    $ref: /schemas/types.yaml#/definitions/phandle-array
> +    description: |
> +      Block address to control SPI chip-selects.  The Elba SoC
> +      does not use ssi.
> +
>  patternProperties:
>    "^.*@[0-9a-f]+$":
>      type: object
> -- 
> 2.17.1
>