linux-kernel - Re: [PATCH v3 1/2] dt-bindings: phy: Introduce Qualcomm eDP/DP PHY binding

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Message-ID: <YW3PqhQHauDYRlwN@robh.at.kernel.org>
Date:   Mon, 18 Oct 2021 14:48:58 -0500
From:   Rob Herring <robh@...nel.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        abhinavk@...eaurora.org, Stephen Boyd <sboyd@...nel.org>
Subject: Re: [PATCH v3 1/2] dt-bindings: phy: Introduce Qualcomm eDP/DP PHY
 binding

On Sat, Oct 16, 2021 at 04:21:27PM -0700, Bjorn Andersson wrote:
> Introduce a binding for the eDP/DP PHY hardware block found in several
> different Qualcomm platforms.
> 
> Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> ---
> 
> Changes since v2:
> - None
> 
>  .../devicetree/bindings/phy/qcom,edp-phy.yaml | 69 +++++++++++++++++++
>  1 file changed, 69 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/phy/qcom,edp-phy.yaml
> 
> diff --git a/Documentation/devicetree/bindings/phy/qcom,edp-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,edp-phy.yaml
> new file mode 100644
> index 000000000000..c258e4f7e332
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/qcom,edp-phy.yaml
> @@ -0,0 +1,69 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/phy/qcom,edp-phy.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: Qualcomm DP/eDP PHY
> +
> +maintainers:
> +  - Bjorn Andersson <bjorn.andersson@...aro.org>
> +
> +description:
> +  The Qualcomm DP/eDP PHY is found in a number of Qualcomm platform and
> +  provides the physical interface for DisplayPort and Embedded Display Port.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - qcom,sc8180x-dp-phy
> +      - qcom,sc8180x-edp-phy

Is there a difference between DP and eDP?

Perhaps note what that is if so.

> +
> +  reg:
> +    items:
> +      - description: PHY base register block
> +      - description: tx0 register block
> +      - description: tx1 register block
> +      - description: PLL register block
> +
> +  clocks:
> +    maxItems: 2
> +
> +  clock-names:
> +    items:
> +      - const: aux
> +      - const: cfg_ahb
> +
> +  "#clock-cells":
> +    const: 1
> +
> +  "#phy-cells":
> +    const: 0
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - "#clock-cells"
> +  - "#phy-cells"
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    phy@...2a00 {
> +      compatible = "qcom,sc8180x-edp-phy";
> +      reg = <0x0aec2a00 0x1c0>,
> +            <0x0aec2200 0xa0>,
> +            <0x0aec2600 0xa0>,
> +            <0x0aec2000 0x19c>;
> +
> +      clocks = <&dispcc 0>, <&dispcc 1>;
> +      clock-names = "aux", "cfg_ahb";
> +
> +      #clock-cells = <1>;
> +      #phy-cells = <0>;
> +    };
> +...
> -- 
> 2.29.2
> 
>