linux-kernel - Re: [PATCH v2 1/4] dt-bindings: phy: renesas: usb2-phy: convert bindings to json-schema

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Date:   Thu, 26 Mar 2020 09:59:49 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
Cc:     Kishon Vijay Abraham I <kishon@...com>,
        Rob Herring <robh+dt@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>
Subject: Re: [PATCH v2 1/4] dt-bindings: phy: renesas: usb2-phy: convert
 bindings to json-schema

Hi Shimoda-san,

On Thu, Mar 26, 2020 at 6:30 AM Yoshihiro Shimoda
<yoshihiro.shimoda.uh@...esas.com> wrote:
> Convert Renesas R-Car generation 3 USB 2.0 PHY bindings documentation
> to json-schema.
>
> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
> Reviewed-by: Rob Herring <robh@...nel.org>

Thanks for your patch!

> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/renesas,usb2-phy.yaml
> @@ -0,0 +1,103 @@
> +# SPDX-License-Identifier: GPL-2.0-only

I think Rob would prefer to see

    # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

> +  reg:
> +    # base address and length of the registers block for the PHY.

The comment is not needed.

> +    maxItems: 1
> +
> +  clocks:
> +    # clock phandle and specifier pair(s).

Likewise.

> +    minItems: 1
> +    maxItems: 2
> +
> +  clock-names:
> +    # for RZ/A2

if:
  properties:
    compatible:
      items:
        enum:
          - renesas,usb2-phy-r7s9210

> +    minItems: 1
> +    maxItems: 2
> +    items:
> +      - const: fck
> +      - const: usb_x1

> +examples:
> +  - |
> +    #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/power/r8a7795-sysc.h>
> +
> +    usb-phy@...80200 {
> +        compatible = "renesas,usb2-phy-r8a7795", "renesas,rcar-gen3-usb2-phy";
> +        reg = <0 0xee080200 0 0x700>;

Examples are built with #{address,size}-cells = <1>, so

    reg = <0xee080200 0x700>;

> +        interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
> +        clocks = <&cpg CPG_MOD 703>;
> +        #phy-cells = <1>;
> +    };
> +
> +    usb-phy@...a0200 {
> +        compatible = "renesas,usb2-phy-r8a7795", "renesas,rcar-gen3-usb2-phy";
> +        reg = <0 0xee0a0200 0 0x700>;

reg = <0xee0a0200 0x700>;

> +        clocks = <&cpg CPG_MOD 702>;
> +        #phy-cells = <1>;
> +    };

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds