linux-kernel - Re: [PATCH v5 1/7] dt-bindings: pinctrl: mediatek,mt6779-pinctrl: Pull pinctrl node changes from MT6795 document

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Date:   Wed, 30 Nov 2022 09:20:41 -0600
From:   Rob Herring <robh@...nel.org>
To:     Yassine Oudjana <yassine.oudjana@...il.com>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Sean Wang <sean.wang@...nel.org>,
        Andy Teng <andy.teng@...iatek.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Yassine Oudjana <y.oudjana@...tonmail.com>,
        linux-mediatek@...ts.infradead.org, linux-gpio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 1/7] dt-bindings: pinctrl: mediatek,mt6779-pinctrl:
 Pull pinctrl node changes from MT6795 document

On Fri, Nov 18, 2022 at 02:30:22PM +0300, Yassine Oudjana wrote:
> From: Yassine Oudjana <y.oudjana@...tonmail.com>
> 
> mediatek,pinctrl-mt6795.yaml has different node name patterns which match
> bindings of other MediaTek pin controllers, ref for pinmux-node.yaml which
> has a description of the pinmux property, as well as some additional
> descriptions for some pin configuration properties. Pull those changes
> into mediatek,mt6779-pinctrl.yaml and adjust the example DTS to match in
> preparation to combine the MT6795 document into it.
> 
> Signed-off-by: Yassine Oudjana <y.oudjana@...tonmail.com>
> ---
>  .../pinctrl/mediatek,mt6779-pinctrl.yaml      | 38 ++++++++++++++-----
>  1 file changed, 28 insertions(+), 10 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,mt6779-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,mt6779-pinctrl.yaml
> index a2141eb0854e..d6231d11e949 100644
> --- a/Documentation/devicetree/bindings/pinctrl/mediatek,mt6779-pinctrl.yaml
> +++ b/Documentation/devicetree/bindings/pinctrl/mediatek,mt6779-pinctrl.yaml
> @@ -111,19 +111,21 @@ allOf:
>          - "#interrupt-cells"
>  
>  patternProperties:
> -  '-[0-9]*$':
> +  '-pins$':
>      type: object
>      additionalProperties: false
>  
>      patternProperties:
> -      '-pins*$':
> +      '^pins':
>          type: object
>          description: |
>            A pinctrl node should contain at least one subnodes representing the
>            pinctrl groups available on the machine. Each subnode will list the
>            pins it needs, and how they should be configured, with regard to muxer
>            configuration, pullups, drive strength, input enable/disable and input schmitt.
> -        $ref: "/schemas/pinctrl/pincfg-node.yaml"
> +        allOf:
> +          - $ref: pinmux-node.yaml
> +          - $ref: pincfg-node.yaml
>  
>          properties:
>            pinmux:
> @@ -134,9 +136,25 @@ patternProperties:
>  
>            bias-disable: true
>  
> -          bias-pull-up: true
> -
> -          bias-pull-down: true
> +          bias-pull-up:
> +            oneOf:
> +              - type: boolean
> +              - enum: [100, 101, 102, 103]
> +                description: Pull up PUPD/R0/R1 type define value.
> +            description: |
> +              For normal pull up type, it is not necessary to specify R1R0
> +              values; When pull up type is PUPD/R0/R1, adding R1R0 defines
> +              will set different resistance values.
> +
> +          bias-pull-down:
> +            oneOf:
> +              - type: boolean
> +              - enum: [100, 101, 102, 103]

'bias-pull-down' is defined to be in Ohms. This doesn't look like it's 
Ohms.

> +                description: Pull down PUPD/R0/R1 type define value.
> +            description: |
> +              For normal pull down type, it is not necessary to specify R1R0
> +              values; When pull down type is PUPD/R0/R1, adding R1R0 defines
> +              will set different resistance values.
>  
>            input-enable: true
>  
> @@ -218,8 +236,8 @@ examples:
>              #interrupt-cells = <2>;
>              interrupts = <GIC_SPI 204 IRQ_TYPE_LEVEL_HIGH>;
>  
> -            mmc0_pins_default: mmc0-0 {
> -                cmd-dat-pins {
> +            mmc0_pins_default: mmc0-pins {
> +                pins-cmd-dat {
>                      pinmux = <PINMUX_GPIO168__FUNC_MSDC0_DAT0>,
>                          <PINMUX_GPIO172__FUNC_MSDC0_DAT1>,
>                          <PINMUX_GPIO169__FUNC_MSDC0_DAT2>,
> @@ -232,11 +250,11 @@ examples:
>                      input-enable;
>                      mediatek,pull-up-adv = <1>;
>                  };
> -                clk-pins {
> +                pins-clk {
>                      pinmux = <PINMUX_GPIO176__FUNC_MSDC0_CLK>;
>                      mediatek,pull-down-adv = <2>;
>                  };
> -                rst-pins {
> +                pins-rst {
>                      pinmux = <PINMUX_GPIO178__FUNC_MSDC0_RSTB>;
>                      mediatek,pull-up-adv = <0>;
>                  };
> -- 
> 2.38.1
> 
>