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From: Krzysztof Kozlowski <krzk@kernel.org>
To: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>,
	Krishna Kurapati <krishna.kurapati@oss.qualcomm.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Wesley Cheng <wesley.cheng@oss.qualcomm.com>,
	linux-arm-msm@vger.kernel.org, linux-usb@vger.kernel.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] dt-bindings: usb: qcom,snps-dwc3: Fix glymur binding for non-MP controllers
Date: Thu, 3 Sep 2026 08:40:24 +0200	[thread overview]
Message-ID: <b192753a-b7c1-4086-9c15-4af2008a5670@kernel.org> (raw)
In-Reply-To: <dd3c20f3-89dc-4b5a-935e-e0e142988e4d@oss.qualcomm.com>

On 03/09/2026 08:32, Konrad Dybcio wrote:
> On 9/2/26 6:59 PM, Krishna Kurapati wrote:
>>
>>
>> On 9/2/2026 7:40 PM, Konrad Dybcio wrote:
>>> On 8/31/26 2:29 PM, Krzysztof Kozlowski wrote:
>>>> On 31/08/2026 11:03, Krishna Kurapati wrote:
>>>>>
>>>>>
>>>>> On 8/31/2026 2:07 PM, Krzysztof Kozlowski wrote:
>>>>>> On Fri, Aug 28, 2026 at 01:45:42PM +0530, Krishna Kurapati wrote:
>>>>>>> Currently for Glymur non-multiport USB controllers, number of interrupts
>>>>>>> are limited to a maximum of "5". Either hs_phy_irq or ss_phy_irq are to be
>>>>>>> present.
>>>
>>> [...]
>>>
>>>>>>>                  - qcom,eliza-dwc3
>>>>>>> +              - qcom,glymur-dwc3
>>>>>>>                  - qcom,ipq4019-dwc3
>>>>>>>                  - qcom,ipq8064-dwc3
>>>>>>>                  - qcom,kaanapali-dwc3
>>>>>>
>>>>>> This changes the ABI without an explanation.
>>>>>>
>>>>> As per the harware specification, the controllers do have both
>>>>> hs_phy_irq and ss_phy_irq. Hence wanted the binding to capture that
>>>>> info. Will update the commit message accordingly.
>>>>>
>>>>
>>>> So the change in 99df63d20dabda8d7ae01bcca7cdb1e92110a555 was
>>>> incomplete? Lack of context here is not helping.
>>>>
>>>> If they have these IRQs but it does not matter, then it is not a good
>>>> reason to change ABI and you should just add the clock as optional to
>>>> the end. Was this binding already released? I think yes.
>>>
>>> IIUC the intent of the patch is to allow specifying the currently
>>> missing hs_phy_irq on non-multiport controllers (i.e. usb3_[012]).
>>> Bundling the DT change would have made that easier.
>> Yes, I wanted to add the missing hs_phy_irq. I didn't want to bundle in the DT along with the usb binding changes. DT change was posted separately:
>>
>> https://lore.kernel.org/all/20260803-glymur-dt-usb-fixes-v1-1-0f5f52853102@oss.qualcomm.com/
> 
> Shipping bindings and DT changes in a _series_ is preferred, what one
> must avoid is changing them within the same _patch_

No, DTS cannot be posted within USB patchset.

Best regards,
Krzysztof

  reply	other threads:[~2026-09-03  6:40 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-28  8:15 [PATCH v2] dt-bindings: usb: qcom,snps-dwc3: Fix glymur binding for non-MP controllers Krishna Kurapati
2026-08-28  8:22 ` sashiko-bot
2026-08-31  8:37 ` Krzysztof Kozlowski
2026-08-31  9:03   ` Krishna Kurapati
2026-08-31 12:29     ` Krzysztof Kozlowski
2026-09-02 14:10       ` Konrad Dybcio
2026-09-02 16:59         ` Krishna Kurapati
2026-09-03  6:32           ` Konrad Dybcio
2026-09-03  6:40             ` Krzysztof Kozlowski [this message]
2026-09-03  6:42               ` Konrad Dybcio
2026-09-03  6:41         ` Krzysztof Kozlowski
2026-09-03  8:11           ` Krishna Kurapati
2026-09-03  8:14             ` Krzysztof Kozlowski

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