Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Message-ID: <028fb8ac-d6cc-6fee-f50b-b965e69e7d0c@linaro.org>
Date:   Thu, 11 May 2023 16:49:01 +0200
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101
 Thunderbird/102.11.0
Subject: Re: [PATCH v2 1/2] dt-bindings: cdns,usb3: Add clock and reset
Content-Language: en-US
To:     Roger Quadros <rogerq@kernel.org>,
        Minda Chen <minda.chen@starfivetech.com>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Pawel Laszczak <pawell@cadence.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Peter Chen <peter.chen@kernel.org>,
        Philipp Zabel <p.zabel@pengutronix.de>
Cc:     devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-usb@vger.kernel.org
References: <20230510132816.108820-1-minda.chen@starfivetech.com>
 <20230510132816.108820-2-minda.chen@starfivetech.com>
 <9cf5965a-8290-dfff-9f92-07ed2df66650@linaro.org>
 <05057f6d-cb38-8e4a-5d30-82863e0cda44@kernel.org>
From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
In-Reply-To: <05057f6d-cb38-8e4a-5d30-82863e0cda44@kernel.org>
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
Precedence: bulk

On 11/05/2023 14:16, Roger Quadros wrote:
> 
> 
> On 11/05/2023 12:26, Krzysztof Kozlowski wrote:
>> On 10/05/2023 15:28, Minda Chen wrote:
>>> To support generic clock and reset init in Cadence USBSS
>>> controller, add clock and reset dts configuration.
>>>
>>> Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
>>> ---
>>>  .../devicetree/bindings/usb/cdns,usb3.yaml         | 14 ++++++++++++++
>>>  1 file changed, 14 insertions(+)
>>>
>>> diff --git a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
>>> index cae46c4982ad..623c6b34dee3 100644
>>> --- a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
>>> +++ b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
>>> @@ -42,6 +42,18 @@ properties:
>>>        - const: otg
>>>        - const: wakeup
>>>  
>>> +  clocks:
>>> +    minItems: 1
>>> +    maxItems: 8
>>> +    description:
>>> +      USB controller clocks.
>>
>> You need to list the items. And why is it variable? Your clock choice in
>> the example is poor, I doubt it is real.
>>
>>> +
>>> +  resets:
>>> +    minItems: 1
>>> +    maxItems: 8
>>> +    description:
>>> +      USB controller generic resets.
>>
>> Here as well.
>>
>> You had one clock last time, thus the review was - drop the names. Now
>> you changed it to 8 clocks... I don't understand.
>>
> 
> Different platforms may have different number of clocks/resets or none.
> So I don't think minItems/maxItems should be specified.

Yeah, but we want the clocks to be specific per platform. Not anything
anywhere.

Best regards,
Krzysztof