linux-kernel - Re: [PATCH 1/6] dt-bindings: phy: meson8b-usb2: Convert to json-schema

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Date:   Mon, 4 May 2020 12:55:30 +0200
From:   hex dump <hexdump0815@...il.com>
To:     Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc:     kishon@...com, robh+dt@...nel.org, vkoul@...nel.org,
        devicetree@...r.kernel.org, linux-amlogic@...ts.infradead.org,
        narmstrong@...libre.com, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/6] dt-bindings: phy: meson8b-usb2: Convert to json-schema

On Sat, May 2, 2020 at 1:48 PM Martin Blumenstingl
<martin.blumenstingl@...glemail.com> wrote:
>
> Now that we have the DT validation in place, let's convert the device
> tree bindings for the Amlogic Meson8, Meson8b, Meson8m2 and GXBB USB2
> PHY over to a YAML schema.
>
> While here, also add the fallback compatible string
> "amlogic,meson-gxbb-usb2-phy" which is already used in
> arch/arm/boot/dts/meson{,8,8b}.dtsi.
>
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>

Tested-by: hexdump <hexdump0815@...glemail.com>

> ---
>  .../phy/amlogic,meson8b-usb2-phy.yaml         | 61 +++++++++++++++++++
>  .../bindings/phy/meson8b-usb2-phy.txt         | 28 ---------
>  2 files changed, 61 insertions(+), 28 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/phy/amlogic,meson8b-usb2-phy.yaml
>  delete mode 100644 Documentation/devicetree/bindings/phy/meson8b-usb2-phy.txt
>
> diff --git a/Documentation/devicetree/bindings/phy/amlogic,meson8b-usb2-phy.yaml b/Documentation/devicetree/bindings/phy/amlogic,meson8b-usb2-phy.yaml
> new file mode 100644
> index 000000000000..c2fe8c08d99e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/amlogic,meson8b-usb2-phy.yaml
> @@ -0,0 +1,61 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/phy/amlogic,meson8b-usb2-phy.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: Amlogic Meson8, Meson8b, Meson8m2 and GXBB USB2 PHY
> +
> +maintainers:
> +  - Martin Blumenstingl <martin.blumenstingl@...glemail.com>
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +          - enum:
> +            - amlogic,meson8-usb2-phy
> +            - amlogic,meson8b-usb2-phy
> +          - const: amlogic,meson-mx-usb2-phy
> +      - const: amlogic,meson-gxbb-usb2-phy
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    minItems: 2
> +
> +  clock-names:
> +    items:
> +      - const: usb_general
> +      - const: usb
> +
> +  resets:
> +    minItems: 1
> +
> +  "#phy-cells":
> +    const: 0
> +
> +  phy-supply:
> +     description:
> +       Phandle to a regulator that provides power to the PHY. This
> +       regulator will be managed during the PHY power on/off sequence.
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - "#phy-cells"
> +
> +examples:
> +  - |
> +    usb-phy@...00000 {
> +      compatible = "amlogic,meson-gxbb-usb2-phy";
> +      reg = <0xc0000000 0x20>;
> +      resets = <&reset_usb_phy>;
> +      clocks = <&clk_usb_general>, <&reset_usb>;
> +      clock-names = "usb_general", "usb";
> +      phy-supply = <&usb_vbus>;
> +      #phy-cells = <0>;
> +    };
> diff --git a/Documentation/devicetree/bindings/phy/meson8b-usb2-phy.txt b/Documentation/devicetree/bindings/phy/meson8b-usb2-phy.txt
> deleted file mode 100644
> index d81d73aea608..000000000000
> --- a/Documentation/devicetree/bindings/phy/meson8b-usb2-phy.txt
> +++ /dev/null
> @@ -1,28 +0,0 @@
> -* Amlogic Meson8, Meson8b and GXBB USB2 PHY
> -
> -Required properties:
> -- compatible:  Depending on the platform this should be one of:
> -       "amlogic,meson8-usb2-phy"
> -       "amlogic,meson8b-usb2-phy"
> -       "amlogic,meson-gxbb-usb2-phy"
> -- reg:         The base address and length of the registers
> -- #phys-cells: should be 0 (see phy-bindings.txt in this directory)
> -- clocks:      phandle and clock identifier for the phy clocks
> -- clock-names: "usb_general" and "usb"
> -
> -Optional properties:
> -- resets:      reference to the reset controller
> -- phy-supply:  see phy-bindings.txt in this directory
> -
> -
> -Example:
> -
> -usb0_phy: usb-phy@...00000 {
> -       compatible = "amlogic,meson-gxbb-usb2-phy";
> -       #phy-cells = <0>;
> -       reg = <0x0 0xc0000000 0x0 0x20>;
> -       resets = <&reset RESET_USB_OTG>;
> -       clocks = <&clkc CLKID_USB>, <&clkc CLKID_USB0>;
> -       clock-names = "usb_general", "usb";
> -       phy-supply = <&usb_vbus>;
> -};
> --
> 2.26.2
>