linux-kernel - Re: [PATCH v3 02/17] dt-bindings: pinctrl: mediatek,mt8365-pinctrl: add drive strength property

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Date:   Thu, 30 Mar 2023 19:17:27 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     Alexandre Mergnat <amergnat@...libre.com>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Chaotian Jing <chaotian.jing@...iatek.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Wenbin Mei <wenbin.mei@...iatek.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Zhiyong Tao <zhiyong.tao@...iatek.com>,
        Bernhard Rosenkränzer <bero@...libre.com>
Cc:     linux-watchdog@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-mmc@...r.kernel.org,
        linux-gpio@...r.kernel.org,
        Alexandre Bailon <abailon@...libre.com>,
        Fabien Parent <fparent@...libre.com>,
        Amjad Ouled-Ameur <aouledameur@...libre.com>
Subject: Re: [PATCH v3 02/17] dt-bindings: pinctrl: mediatek,mt8365-pinctrl:
 add drive strength property



On 29/03/2023 10:54, Alexandre Mergnat wrote:
> This SoC is able to drive the following output current:
> - 2 mA
> - 4 mA
> - 6 mA
> - 8 mA
> - 10 mA
> - 12 mA
> - 14 mA
> - 16 mA
> 
> Then drive-strength property is set with enum to reflect its HW capability.
> 
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> Signed-off-by: Alexandre Mergnat <amergnat@...libre.com>

Reviewed-by: Matthias Brugger <matthias.bgg@...il.com>

> ---
>   Documentation/devicetree/bindings/pinctrl/mediatek,mt8365-pinctrl.yaml | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,mt8365-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,mt8365-pinctrl.yaml
> index 4b96884a1afc..101871ec6693 100644
> --- a/Documentation/devicetree/bindings/pinctrl/mediatek,mt8365-pinctrl.yaml
> +++ b/Documentation/devicetree/bindings/pinctrl/mediatek,mt8365-pinctrl.yaml
> @@ -79,6 +79,9 @@ patternProperties:
>   
>             bias-pull-down: true
>   
> +          drive-strength:
> +            enum: [2, 4, 6, 8, 10, 12, 14, 16]
> +
>             input-enable: true
>   
>             input-disable: true
>