linux-kernel - Re: [PATCH 8/8] dt-bindings: soc: socionext: Add UniPhier AHCI glue layer

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Date:   Thu, 1 Dec 2022 18:30:02 +0900
From:   Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 8/8] dt-bindings: soc: socionext: Add UniPhier AHCI glue
 layer

Hi Krzysztof,

On 2022/11/29 19:35, Kunihiko Hayashi wrote:
> Add DT binding schema for components belonging to the platform-specific
> AHCI glue layer implemented in UniPhier SoCs.
> 
> This AHCI glue layer works as a sideband logic for the host controller,
> including core reset, PHYs, and some signals to the controller.
> 
> Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>

(snip)

> +examples:
> +  - |
> +    sata-controller@...00000 {
> +        compatible = "socionext,uniphier-pxs3-ahci-glue", "simple-mfd";
> +        reg = <0x65b00000 0x400>;
> +        #address-cells = <1>;
> +        #size-cells = <1>;
> +        ranges = <0 0x65700000 0x100>;

In PATCH 7/8, you suggested that the node name of "USB glue layer" should
changes to the generic node name "usb@...".

However, in case of this "AHCI glue layer", I can't change "sata-controller"
to the generic node name "sata@...", because ata/sata-common.yaml has pattern
"^sata(@.*)?$", and the changed node matches this pattern unintentionally.

This layer isn't a sata host controller, so it's hard to give a generic name
to this node. I'd like you opinion.

Thank you,

---
Best Regards
Kunihiko Hayashi