linux-kernel - Re: [PATCH v2 3/8] dt-bindings: PCI: renesas-pci-usb: Allow multiple clocks

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Date:   Thu, 14 Apr 2022 10:35:07 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Herve Codina <herve.codina@...tlin.com>
Cc:     Marek Vasut <marek.vasut+renesas@...il.com>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Rob Herring <robh@...nel.org>,
        linux-pci <linux-pci@...r.kernel.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Sergey Shtylyov <s.shtylyov@....ru>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Clement Leger <clement.leger@...tlin.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>
Subject: Re: [PATCH v2 3/8] dt-bindings: PCI: renesas-pci-usb: Allow multiple clocks

Hi Hervé,

On Thu, Apr 14, 2022 at 9:40 AM Herve Codina <herve.codina@...tlin.com> wrote:
> Define that multiple clocks can be present at clocks property.
>
> Signed-off-by: Herve Codina <herve.codina@...tlin.com>

Thanks for your patch!

> --- a/Documentation/devicetree/bindings/pci/renesas,pci-usb.yaml
> +++ b/Documentation/devicetree/bindings/pci/renesas,pci-usb.yaml
> @@ -54,7 +54,8 @@ properties:
>        Standard property that helps to define the interrupt mapping.
>
>    clocks:
> -    description: The reference to the device clock.
> +    description:
> +      The references to the device clocks (several clocks can be referenced).

Please describe the clocks, and add the missing "clock-names" property.

>
>    bus-range:
>      description: |

I think it would be better to combine this with [PATCH v2 4/8], as the
additional clocks are only present on RZ/N1.

Then you can easily add json-schema logic to enforce the correct
number of clocks, depending on the compatible value.

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