Re: [PATCH v2] dt-bindings: usb: qcom,snps-dwc3: Fix glymur binding for non-MP controllers

[Krishna Kurapati <krishna.kurapati@oss.qualcomm.com>]

On 9/3/2026 12:11 PM, Krzysztof Kozlowski wrote:
> On 02/09/2026 16:10, 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.
> 
> This does not answer my concerns. So repeating: patch is changing ABI
> without an explanation. This means contributor needs to provide
> explanation for the ABI change in terms of actual impact.
> 
 From a functional standpoint, there would be no effect. I was trying to 
make the bindings reflect that the hardware has hs_phy_irq.

Regards,
Krishna,