linux-kernel - Re: [PATCH v2 20/28] dt-bindings: pinctrl: renesas: document RZ/G3S SoC

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Date:   Fri, 29 Sep 2023 15:07:08 +0100
From:   Conor Dooley <conor@...nel.org>
To:     Claudiu <claudiu.beznea@...on.dev>
Cc:     geert+renesas@...der.be, mturquette@...libre.com, sboyd@...nel.org,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org, linus.walleij@...aro.org,
        gregkh@...uxfoundation.org, jirislaby@...nel.org,
        magnus.damm@...il.com, catalin.marinas@....com, will@...nel.org,
        quic_bjorande@...cinc.com, konrad.dybcio@...aro.org, arnd@...db.de,
        neil.armstrong@...aro.org, prabhakar.mahadev-lad.rj@...renesas.com,
        biju.das.jz@...renesas.com, linux-renesas-soc@...r.kernel.org,
        linux-clk@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
        linux-serial@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 20/28] dt-bindings: pinctrl: renesas: document RZ/G3S
 SoC

On Fri, Sep 29, 2023 at 08:39:07AM +0300, Claudiu wrote:
> From: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
> 
> Add documentation for pin controller found on RZ/G3S (R9A08G045) SoC.
> Compared with RZ/G2{L,UL} RZ/G3S has 82 general-purpose IOs, no slew
> rate and output impedance support and more values for drive strength
> which needs to be expressed in microamp.
> 
> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>

Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>

Thanks,
Conor.

> ---
> 
> Changes in v2:
> - defined drive-strength-microamp as general and make if/then schema to
>   not allow specific properties depending on compatible
> 
>  .../pinctrl/renesas,rzg2l-pinctrl.yaml        | 20 +++++++++++++++++++
>  1 file changed, 20 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/pinctrl/renesas,rzg2l-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/renesas,rzg2l-pinctrl.yaml
> index eb726770f571..86228ba69aab 100644
> --- a/Documentation/devicetree/bindings/pinctrl/renesas,rzg2l-pinctrl.yaml
> +++ b/Documentation/devicetree/bindings/pinctrl/renesas,rzg2l-pinctrl.yaml
> @@ -25,6 +25,7 @@ properties:
>            - enum:
>                - renesas,r9a07g043-pinctrl # RZ/G2UL{Type-1,Type-2} and RZ/Five
>                - renesas,r9a07g044-pinctrl # RZ/G2{L,LC}
> +              - renesas,r9a08g045-pinctrl # RZ/G3S
>  
>        - items:
>            - enum:
> @@ -78,6 +79,21 @@ additionalProperties:
>          - $ref: pincfg-node.yaml#
>          - $ref: pinmux-node.yaml#
>  
> +        - if:
> +            properties:
> +              compatible:
> +                contains:
> +                  enum:
> +                    - renesas,r9a08g045-pinctrl
> +          then:
> +            properties:
> +              drive-strength: false
> +              output-impedance-ohms: false
> +              slew-rate: false
> +          else:
> +            properties:
> +              drive-strength-microamp: false
> +
>        description:
>          Pin controller client devices use pin configuration subnodes (children
>          and grandchildren) for desired pin configuration.
> @@ -92,6 +108,10 @@ additionalProperties:
>          pins: true
>          drive-strength:
>            enum: [ 2, 4, 8, 12 ]
> +        drive-strength-microamp:
> +          enum: [ 1900, 2200, 4000, 4400, 4500, 4700, 5200, 5300, 5700,
> +                  5800, 6000, 6050, 6100, 6550, 6800, 7000, 8000, 9000,
> +                  10000 ]
>          output-impedance-ohms:
>            enum: [ 33, 50, 66, 100 ]
>          power-source:
> -- 
> 2.39.2
> 

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