linux-kernel - Re: [PATCH v2 15/16] dt-bindings: soc: socionext: Add UniPhier DWC3 USB glue layer

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Message-ID: <00ead078-f7a7-6858-905c-80e538237967@socionext.com>
Date:   Fri, 9 Dec 2022 00:11:37 +0900
From:   Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     Masami Hiramatsu <mhiramat@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 15/16] dt-bindings: soc: socionext: Add UniPhier DWC3
 USB glue layer

On 2022/12/08 17:23, Krzysztof Kozlowski wrote:
> On 07/12/2022 06:54, Kunihiko Hayashi wrote:
>> Add DT binding schema for components belonging to the platform-specific
>> DWC3 USB glue layer implemented in UniPhier SoCs.
>>
>> This USB glue layer works as a sideband logic for the host controller,
>> including core reset, vbus control, PHYs, and some signals to the
>> controller.
>>
>> Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
>> ---
>>   .../socionext,uniphier-dwc3-glue.yaml         | 106 ++++++++++++++++++
>>   1 file changed, 106 insertions(+)
>>   create mode 100644
>> Documentation/devicetree/bindings/soc/socionext/socionext,uniphier-dwc3-glue.yaml
>>
>> diff --git
>> a/Documentation/devicetree/bindings/soc/socionext/socionext,uniphier-dwc3-glue.yaml
>> b/Documentation/devicetree/bindings/soc/socionext/socionext,uniphier-dwc3-glue.yaml
>> new file mode 100644
>> index 000000000000..1b5585a5a3a2
>> --- /dev/null
>> +++
>> b/Documentation/devicetree/bindings/soc/socionext/socionext,uniphier-dwc3-glue.yaml
>> @@ -0,0 +1,106 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id:
>> http://devicetree.org/schemas/soc/socionext/socionext,uniphier-dwc3-glue.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Socionext UniPhier SoC DWC3 USB3.0 glue layer
>> +
>> +maintainers:
>> +  - Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
>> +
>> +description: |+
>> +  DWC3 USB3.0 glue layer implemented on Socionext UniPhier SoCs is
>> +  a sideband logic handling signals to DWC3 host controller inside
>> +  USB3.0 component.
>> +
>> +properties:
>> +  compatible:
>> +    items:
>> +      - enum:
>> +          - socionext,uniphier-pro4-dwc3-glue
>> +          - socionext,uniphier-pro5-dwc3-glue
>> +          - socionext,uniphier-pxs2-dwc3-glue
>> +          - socionext,uniphier-ld20-dwc3-glue
>> +          - socionext,uniphier-pxs3-dwc3-glue
>> +          - socionext,uniphier-nx1-dwc3-glue
>> +      - const: simple-mfd
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  '#address-cells':
> 
> Use consistent quotes - either ' or "

I'll change it.

>> +    const: 1
>> +
>> +  '#size-cells':
>> +    const: 1
>> +
>> +  ranges: true
>> +
>> +patternProperties:
>> +  "^reset-controller@[0-9a-f]+$":
>> +    $ref: /schemas/reset/socionext,uniphier-glue-reset.yaml#
>> +
>> +  "^regulator@[0-9a-f]+$":
>> +    $ref: /schemas/regulator/socionext,uniphier-regulator.yaml#
>> +
>> +  "^phy@[0-9a-f]+$":
>> +    oneOf:
>> +      - $ref: /schemas/phy/socionext,uniphier-usb3hs-phy.yaml#
>> +      - $ref: /schemas/phy/socionext,uniphier-usb3ss-phy.yaml#
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +
>> +additionalProperties: false
>> +
> 
> You need to fix
> Documentation/devicetree/bindings/phy/socionext,uniphier-usb3hs-phy.yaml
> example. I propose to drop usb-glue@...00000 from that file. It's not
> relevant to that example.

I already fixed usb3-phy example in PATCH 6/16, however, it's better
to drop the parent node from the example not to avoid the effect of the changes.

Thank you,

---
Best Regards
Kunihiko Hayashi