linux-kernel - Re: [PATCH v2 1/4] dt-bindings: pinctrl: mediatek: Document MT6878 pin controller bindings

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Message-ID: <7bacf8ca-4ec4-4b06-b989-52e287a812d8@collabora.com>
Date: Mon, 15 Sep 2025 09:28:56 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: Igor Belwon <igor.belwon@...tallysanemainliners.org>,
 Linus Walleij <linus.walleij@...aro.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Matthias Brugger <matthias.bgg@...il.com>,
 Sean Wang <sean.wang@...nel.org>
Cc: linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH v2 1/4] dt-bindings: pinctrl: mediatek: Document MT6878
 pin controller bindings

Il 14/09/25 16:51, Igor Belwon ha scritto:
> Add device-tree bindings for the pin controller and the EINT controller
> found in the MediaTek MT6878 SoC.
> 
> Signed-off-by: Igor Belwon <igor.belwon@...tallysanemainliners.org>
> ---
>   .../bindings/pinctrl/mediatek,mt6878-pinctrl.yaml  | 210 +++++++++++++++++++++
>   1 file changed, 210 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,mt6878-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,mt6878-pinctrl.yaml
> new file mode 100644
> index 0000000000000000000000000000000000000000..f320d286ad2155bc4aa449c195ddff3a8686204c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pinctrl/mediatek,mt6878-pinctrl.yaml
> @@ -0,0 +1,210 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pinctrl/mediatek,mt6878-pinctrl.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MediaTek MT6878 Pin Controller
> +
> +maintainers:
> +  - AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> +  - Igor Belwon <igor.belwon@...tallysanemainliners.org>
> +
> +description:
> +  The MediaTek MT6878 Pin controller is used to control SoC pins.
> +
> +properties:
> +  compatible:
> +    const: mediatek,mt6878-pinctrl
> +
> +  reg:
> +    items:
> +      - description: pin controller base
> +      - description: bl group IO
> +      - description: bm group IO
> +      - description: br group IO
> +      - description: bl1 group IO
> +      - description: br1 group IO
> +      - description: lm group IO
> +      - description: lt group IO
> +      - description: rm group IO
> +      - description: rt group IO
> +      - description: EINT controller E block
> +      - description: EINT controller S block
> +      - description: EINT controller W block
> +      - description: EINT controller C block
> +
> +  reg-names:
> +    items:
> +      - const: base
> +      - const: bl
> +      - const: bm
> +      - const: br
> +      - const: bl1
> +      - const: br1
> +      - const: lm
> +      - const: lt
> +      - const: rm
> +      - const: rt
> +      - const: eint-e
> +      - const: eint-s
> +      - const: eint-w
> +      - const: eint-c
> +
> +  gpio-controller: true
> +
> +  '#gpio-cells':
> +    description:
> +      Number of cells in GPIO specifier. Since the generic GPIO binding is used,
> +      the amount of cells must be specified as 2. See the below mentioned gpio
> +      binding representation for description of particular cells.
> +    const: 2
> +
> +  gpio-ranges:
> +    maxItems: 1
> +
> +  gpio-line-names: true

Krzysztof asked you to restrict the maximum number of gpio-line-names if I
remember correctly, you forgot to do so :-)

Cheers,
Angelo