Re: [PATCH v4 1/9] dt-bindings: soc: qcom: eud: Add per-path child nodes for UTMI routing

From: Elson Serrao

Date: Tue Jul 07 2026 - 19:20:44 EST




On 7/3/2026 5:01 PM, Dmitry Baryshkov wrote:
> On Fri, Jul 03, 2026 at 10:56:19AM +0200, Konrad Dybcio wrote:
>> On 7/3/26 9:45 AM, Krzysztof Kozlowski wrote:
>>> On Fri, May 01, 2026 at 10:06:27AM -0700, Elson Serrao wrote:
>>>> The Qualcomm Embedded USB Debugger (EUD) can intercept one or two
>>>> independent High-Speed UTMI paths, depending on the SoC configuration.
>>>> Each path is distinct, with its own connector/controller connection
>>>> and role-dependent UTMI routing.
>>>
>>> You miss SoC specific compatibles in the patch. Binding describes ONLY
>>> SC7280 but you claim here it depends on SoC (not sure what is a
>>> "configuration" of a SoC).
>>
>> The hardware configuration - some (older) SoCs don't support muxing
>> to another port. The binding only says 7280 today, but after some
>> version of this series lands, we'll wire it up on basically
>> everything that came out in the past 10 years
>
> Yes, but I'd also prefer to see exact words / platforms / references
> rather than vague "depending on the SoC configuration".
>
The wording was intended to describe the EUD architecture implemented on
Qualcomm SoCs (as described in the EUD hardware documentation). Given that
SC7280 supports EUD only on primary port, I'll reword the commit text to
give exact platform references and add a compatible for a SoC with
dual-path EUD support(like SM8350) to serve as an example.

Thanks
Elson