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Message-ID: <ab9aa30f-82d7-1d14-5561-e19ff10af0b0@linaro.org>
Date:   Tue, 16 May 2023 10:07:47 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Julien Stephan <jstephan@...libre.com>
Cc:     robh@...nel.org, chunkuang.hu@...nel.org,
        linux-mediatek@...ts.infradead.org,
        Florian Sylvestre <fsylvestre@...libre.com>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Andy Hsieh <andy.hsieh@...iatek.com>,
        Vinod Koul <vkoul@...nel.org>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        "moderated list:ARM/Mediatek USB3 PHY DRIVER" 
        <linux-arm-kernel@...ts.infradead.org>,
        "open list:GENERIC PHY FRAMEWORK" <linux-phy@...ts.infradead.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/2] dt-bindings: phy: add mediatek mipi csi driver v
 0.5

On 15/05/2023 11:05, Julien Stephan wrote:
> From: Florian Sylvestre <fsylvestre@...libre.com>
> 
> This adds the bindings, for the MIPI CD-PHY module v 0.5 embedded in
> some Mediatek soc, such as the mt8365
> 
> Signed-off-by: Florian Sylvestre <fsylvestre@...libre.com>
> Signed-off-by: Julien Stephan <jstephan@...libre.com>

What are the changes? IOW: changelog here or in cover letter.

Subject: you have some multiple spaces.

Subject: drop driver. Bindings are not for drivers.

> ---
>  .../phy/mediatek,phy-mipi-csi-0-5.yaml        | 62 +++++++++++++++++++
>  MAINTAINERS                                   |  6 ++
>  2 files changed, 68 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/phy/mediatek,phy-mipi-csi-0-5.yaml
> 
> diff --git a/Documentation/devicetree/bindings/phy/mediatek,phy-mipi-csi-0-5.yaml b/Documentation/devicetree/bindings/phy/mediatek,phy-mipi-csi-0-5.yaml
> new file mode 100644
> index 000000000000..5aa8c0b41cdf
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/mediatek,phy-mipi-csi-0-5.yaml
> @@ -0,0 +1,62 @@
> +# SPDX-License-Identifier: (GPL-2.0-Only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/phy/mediatek,phy-mipi-csi-0-5.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Mediatek Sensor Interface MIPI CSI CD-PHY
> +
> +maintainers:
> +  - Julien Stephan <jstephan@...libre.com>
> +  - Andy Hsieh <andy.hsieh@...iatek.com>
> +
> +description:
> +  The SENINF CD-PHY is a set of CD-PHY connected to the SENINF CSI-2
> +  receivers. The number of PHYs depends on the SoC model.
> +  Depending on the soc model, each PHYs can support CDPHY or DPHY only
> +
> +properties:
> +  compatible:
> +    enum:
> +      - mediatek,phy-mipi-csi-0-5

SoC based compatibles. 0-5 is odd.

> +
> +  reg:
> +    maxItems: 1
> +
> +  '#phy-cells':
> +    const: 0
> +
> +  mediatek,is_cdphy:

No underscores in node names.

> +    description:
> +      Specify if the current phy support CDPHY configuration

Why this cannot be implied from compatible? Add specific compatibles.


> +    type: boolean
> +
> +required:
> +  - compatible
> +  - reg
> +  - '#phy-cells'
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    soc {
> +      #address-cells = <2>;
> +      #size-cells = <2>;
> +
> +      mipi_rx_csi0: mipi_rx_csi0@...10000 {

No underscores in node names. How this is v2?

> +        compatible = "mediatek,phy-mipi-csi-0-5";
> +        reg = <0 0x11C10000 0 0x2000>;
> +        status = "okay";

Drop

> +        mediatek,is_cdphy;
> +        #phy-cells = <0>;
> +      };
> +
> +      mipi_rx_csi1: mipi-rx-csi1@...12000 {
> +        compatible = "mediatek,phy-mipi-csi-0-5";
> +        reg = <0 0x11C12000 0 0x2000>;
> +        status = "disabled";

???


Best regards,
Krzysztof

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