Re: [PATCH v2] dt-bindings: usb: qcom,snps-dwc3: Fix glymur binding for non-MP controllers
From: Konrad Dybcio
Date: Wed Sep 02 2026 - 10:41:02 EST
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.
Konrad