linux-kernel - Re: [PATCH v3 2/8] dt-bindings: PCI: renesas,pci-rcar-gen2: Add device tree support for r9a06g032

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Message-ID: <CAMuHMdVB2-Sv1AWFr43erOioui0me5A4TfvazKHp9hTF3gJCwg@mail.gmail.com>
Date:   Wed, 27 Apr 2022 17:15:15 +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>,
        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 v3 2/8] dt-bindings: PCI: renesas,pci-rcar-gen2: Add
 device tree support for r9a06g032

Hi Hervé,

On Fri, Apr 22, 2022 at 2:09 PM Herve Codina <herve.codina@...tlin.com> wrote:
> Add internal PCI bridge support for the r9a06g032 SOC. The Renesas
> RZ/N1D (R9A06G032) internal PCI bridge is compatible with the one
> present in the R-Car Gen2 family.
> Compared to the R-Car Gen2 family, it needs three clocks instead of
> one.
>
> Signed-off-by: Herve Codina <herve.codina@...tlin.com>

Thanks for your patch!

> --- a/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml
> +++ b/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml
> @@ -113,6 +113,37 @@ required:
>    - "#size-cells"
>    - "#interrupt-cells"
>
> +if:
> +  properties:
> +    compatible:
> +      contains:
> +        enum:
> +          - renesas,pci-rzn1
> +
> +then:
> +  properties:
> +    clocks:
> +      items:
> +        - description: Internal bus clock (AHB) for HOST
> +        - description: Internal bus clock (AHB) Power Management
> +        - description: PCI clock for USB subsystem
> +    clock-names:
> +      items:
> +        - const: hclk_usbh
> +        - const: hclk_usbpm
> +        - const: clk_pci_usb

These are the provider names.
I think they should use the consumer names: usb_hclkh, usb_hclkpm,
and usb_pciclk.

The rest looks good to me.

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