linux-kernel - Re: [PATCH v4 1/8] dt-bindings: regulator: Document MediaTek MT6316 PMIC Regulators

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Message-ID: <bf5638c9-e49a-4482-9796-ddd3a010d162@collabora.com>
Date: Tue, 15 Jul 2025 15:28:53 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: linux-mediatek@...ts.infradead.org
Cc: lee@...nel.org, robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
 matthias.bgg@...il.com, lgirdwood@...il.com, broonie@...nel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, kernel@...labora.com,
 wenst@...omium.org
Subject: Re: [PATCH v4 1/8] dt-bindings: regulator: Document MediaTek MT6316
 PMIC Regulators

Il 15/07/25 13:57, AngeloGioacchino Del Regno ha scritto:
> Add bindings for the regulators found in the MediaTek MT6316 PMIC,
> usually found in board designs using the MT6991 Dimensity 9400 and
> on MT8196 Kompanio SoC for Chromebooks.
> 
> This chip is fully controlled by SPMI and has multiple variants
> providing different phase configurations.
> 
> Link: https://lore.kernel.org/r/20250624073548.29732-2-angelogioacchino.delregno@collabora.com
> Link: https://lore.kernel.org/r/20250707134451.154346-2-angelogioacchino.delregno@collabora.com

Btw, sorry about those Link: tags, those were completely unwanted... they
slipped through while using b4 and I forgot to remove them.

I'll wait for any feedback or tags and will resend the series with those
tags removed.

Thanks,
Angelo

> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> ---
>   .../regulator/mediatek,mt6316b-regulator.yaml | 46 +++++++++++++++++++
>   .../regulator/mediatek,mt6316c-regulator.yaml | 46 +++++++++++++++++++
>   .../regulator/mediatek,mt6316d-regulator.yaml | 41 +++++++++++++++++
>   3 files changed, 133 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/regulator/mediatek,mt6316b-regulator.yaml
>   create mode 100644 Documentation/devicetree/bindings/regulator/mediatek,mt6316c-regulator.yaml
>   create mode 100644 Documentation/devicetree/bindings/regulator/mediatek,mt6316d-regulator.yaml
> 
> diff --git a/Documentation/devicetree/bindings/regulator/mediatek,mt6316b-regulator.yaml b/Documentation/devicetree/bindings/regulator/mediatek,mt6316b-regulator.yaml
> new file mode 100644
> index 000000000000..e7a6b70cdab2
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/regulator/mediatek,mt6316b-regulator.yaml
> @@ -0,0 +1,46 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/regulator/mediatek,mt6316b-regulator.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MediaTek MT6316 BP/VP SPMI PMIC Regulators
> +
> +maintainers:
> +  - AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> +
> +description:
> +  The MediaTek MT6316BP/VP PMICs are fully controlled by SPMI interface, both
> +  feature four step-down DC/DC (buck) converters, and provides 2+2 Phases,
> +  joining Buck 1+2 for the first phase, and Buck 3+4 for the second phase.
> +
> +properties:
> +  compatible:
> +    const: mediatek,mt6316b-regulator
> +
> +  vbuck12:
> +    type: object
> +    $ref: regulator.yaml#
> +    unevaluatedProperties: false
> +
> +  vbuck34:
> +    type: object
> +    $ref: regulator.yaml#
> +    unevaluatedProperties: false
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    pmic {
> +      regulators {
> +        compatible = "mediatek,mt6316b-regulator";
> +
> +        vbuck12 {
> +          regulator-min-microvolt = <450000>;
> +          regulator-max-microvolt = <965000>;
> +          regulator-always-on;
> +        };
> +      };
> +    };
> +...
> diff --git a/Documentation/devicetree/bindings/regulator/mediatek,mt6316c-regulator.yaml b/Documentation/devicetree/bindings/regulator/mediatek,mt6316c-regulator.yaml
> new file mode 100644
> index 000000000000..0b9239a595ed
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/regulator/mediatek,mt6316c-regulator.yaml
> @@ -0,0 +1,46 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/regulator/mediatek,mt6316c-regulator.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MediaTek MT6316 CP/HP/KP SPMI PMIC Regulators
> +
> +maintainers:
> +  - AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> +
> +description:
> +  The MediaTek MT6316CP/HP/KP PMICs are fully controlled by SPMI interface,
> +  features four step-down DC/DC (buck) converters, and provides 3+1 Phases,
> +  joining Buck 1+2+4 for the first phase, and uses Buck 3 for the second.
> +
> +properties:
> +  compatible:
> +    const: mediatek,mt6316c-regulator
> +
> +  vbuck124:
> +    type: object
> +    $ref: regulator.yaml#
> +    unevaluatedProperties: false
> +
> +  vbuck3:
> +    type: object
> +    $ref: regulator.yaml#
> +    unevaluatedProperties: false
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    pmic {
> +      regulators {
> +        compatible = "mediatek,mt6316c-regulator";
> +
> +        vbuck124 {
> +          regulator-min-microvolt = <450000>;
> +          regulator-max-microvolt = <1277500>;
> +          regulator-always-on;
> +        };
> +      };
> +    };
> +...
> diff --git a/Documentation/devicetree/bindings/regulator/mediatek,mt6316d-regulator.yaml b/Documentation/devicetree/bindings/regulator/mediatek,mt6316d-regulator.yaml
> new file mode 100644
> index 000000000000..460c02bf69de
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/regulator/mediatek,mt6316d-regulator.yaml
> @@ -0,0 +1,41 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/regulator/mediatek,mt6316d-regulator.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MediaTek MT6316 DP/TP SPMI PMIC Regulators
> +
> +maintainers:
> +  - AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> +
> +description:
> +  The MediaTek MT6316DP/TP PMICs are fully controlled by SPMI interface, both
> +  feature four step-down DC/DC (buck) converters, and provides a single Phase,
> +  joining Buck 1+2+3+4.
> +
> +properties:
> +  compatible:
> +    const: mediatek,mt6316d-regulator
> +
> +  vbuck1234:
> +    type: object
> +    $ref: regulator.yaml#
> +    unevaluatedProperties: false
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    pmic {
> +      regulators {
> +        compatible = "mediatek,mt6316d-regulator";
> +
> +        vbuck1234 {
> +          regulator-min-microvolt = <400000>;
> +          regulator-max-microvolt = <1277500>;
> +          regulator-always-on;
> +        };
> +      };
> +    };
> +...