linux-kernel - Re: [PATCH 05/11] dt-bindings: spi: dw: Add Pensando Elba SoC SPI Controller bindings

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Message-ID: <20220412112950.pdsfx72wrhnqm7ky@mobilestation>
Date:   Tue, 12 Apr 2022 14:29:50 +0300
From:   Serge Semin <fancer.lancer@...il.com>
To:     Brad Larson <brad@...sando.io>
Cc:     Serge Semin <Sergey.Semin@...kalelectronics.ru>,
        linux-arm-kernel@...ts.infradead.org, arnd@...db.de,
        linus.walleij@...aro.org, bgolaszewski@...libre.com,
        broonie@...nel.org, adrian.hunter@...el.com,
        ulf.hansson@...aro.org, olof@...om.net, dac2@...sando.io,
        linux-gpio@...r.kernel.org, linux-spi@...r.kernel.org,
        linux-mmc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 05/11] dt-bindings: spi: dw: Add Pensando Elba SoC SPI
 Controller bindings

On Wed, Apr 06, 2022 at 04:36:42PM -0700, Brad Larson wrote:
> The Pensando Elba SoC has integrated the DW APB SPI Controller
> and requires the property pensando,syscon-spics for access
> to the spics control register.
> 
> Signed-off-by: Brad Larson <brad@...sando.io>
> ---
> Change from V3:
> - Add required property pensando,syscon-spics to go with
>   pensando,elba-spi
> 
>  .../bindings/spi/snps,dw-apb-ssi.yaml           | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
> index d7e08b03e204..41c3bbf5a55c 100644
> --- a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
> +++ b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
> @@ -37,6 +37,21 @@ allOf:
>      else:
>        required:
>          - interrupts
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - pensando,elba-spi
> +    then:
> +      properties:

> +        pensando,syscon-spics:

Please see my comment to the "[PATCH 11/11] arm64: dts: Add Pensando
Elba SoC support" patch regarding this property implementation.

-Sergey

> +          $ref: /schemas/types.yaml#/definitions/phandle
> +          description:
> +            Phandle to the system control device node which provides access to
> +            the spics control register
> +      required:
> +        - pensando,syscon-spics
>  
>  properties:
>    compatible:
> @@ -73,6 +88,8 @@ properties:
>                - renesas,r9a06g032-spi # RZ/N1D
>                - renesas,r9a06g033-spi # RZ/N1S
>            - const: renesas,rzn1-spi   # RZ/N1
> +      - description: Pensando SoC SPI Controller
> +        const: pensando,elba-spi
>  
>    reg:
>      minItems: 1
> -- 
> 2.17.1
>