linux-kernel - Re: [PATCH v4 2/2] dt-bindings: usb: snps,dwc3: Add the compatible name 'snps,dwc3-rtk-soc'

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Date:   Tue, 2 May 2023 12:15:02 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Stanley Chang[昌育德] 
        <stanley_chang@...ltek.com>,
        Thinh Nguyen <Thinh.Nguyen@...opsys.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Felipe Balbi <balbi@...nel.org>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 2/2] dt-bindings: usb: snps,dwc3: Add the compatible
 name 'snps,dwc3-rtk-soc'

On 02/05/2023 10:56, Stanley Chang[昌育德] wrote:
> Hi Krzysztof,
> 
>>>> On 02/05/2023 07:04, Stanley Chang wrote:
>>>>> Add a new compatible name 'snps,dwc3-rtk-soc' of DT for realtek dwc3
>>>>> core to adjust the global register start address
>>>>>
>>>>> The RTK DHC SoCs were designed, the global register address offset
>>>>> at
>>>>
>>>> What are: "RTK" and "DHC"? These are manufactured by Synopsys as you
>>>> suggest in the patch?
>>>
>>> RTK is Realtek.
>>> DHC is the department name in Realtek and the abbreviation of the Digital
>> Home Center.
>>> The USB controller of RTK DHC SoCs used the DWC3 IP of Synopsys.
>>
>> Then entire compatible is not correct. Vendor is Realtek not Synopsys.
>> DHC is not even device name. Use real device names.
> 
> So, can we use the compatible name as 'realtek,dwc3' ?

dwc3 is not a real device name for Realtek.

Best regards,
Krzysztof