[PATCH v4 1/2] dt-bindings: phy: google: Add Google Tensor G5 USB PHY

Roy Luo royluo at google.com
Mon Oct 27 16:21:32 PDT 2025


On Mon, Oct 27, 2025 at 7:02 AM Krzysztof Kozlowski <krzk at kernel.org> wrote:
>
> On 24/10/2025 00:22, Roy Luo wrote:
> >>> +
> >>> +  clocks:
> >>> +    items:
> >>> +      - description: USB2 PHY clock.
> >>> +      - description: USB2 PHY APB clock.
> >>> +
> >>> +  clock-names:
> >>> +    items:
> >>> +      - const: usb2_phy
> >>
> >> core
> >>
> >>> +      - const: u2phy_apb
> >>
> >> apb
> >>
> >
> > Just to provide the full context, these two clocks/resets
> > (usb2_phy and u2phy_apb) are specifically for eUSB2 PHY.
> > USB3/DP combo PHY has its own clock/reset that hasn't
> > been added yet, we would have to differentiate them once
>
> That's confusing a bit. You must add all clocks, all resets, all power
> domains, all pins etc. Bindings are supposed to be complete, see writing
> bindings doc.
>
>
> Best regards,
> Krzysztof

Ok found this in the writing binding doc:
"DO attempt to make bindings complete even if a driver doesn’t
support some features. For example, if a device has an interrupt,
then include the ‘interrupts’ property even if the driver is only
polled mode."

I will add all the clocks and resets inclusive of usb3 in the
next version.

Thanks,
Roy Luo



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