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

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Date:   Fri, 2 Dec 2022 21:14:55 +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

On 2022/12/02 21:08, Krzysztof Kozlowski wrote:
> On 01/12/2022 10:30, Kunihiko Hayashi wrote:
>> 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.
> 
> Yeah, I think it's fine. We do not have good names for such nodes.

OK, I leave the name for this node.

Thank you,

---
Best Regards
Kunihiko Hayashi