Re: [PATCH 2/3] clk: qcom: ipq6018: add USB GDSCs

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On Thu, 26 Oct 2023 at 20:45, Konrad Dybcio <konrad.dybcio@xxxxxxxxxx> wrote:
>
>
>
> On 10/26/23 20:42, Konrad Dybcio wrote:
> >
> >
> > On 10/25/23 12:44, Robert Marko wrote:
> >> IPQ6018 has GDSC-s for each of the USB ports, so lets define them as such
> >> and drop the curent code that is de-asserting the USB GDSC-s as part of
> >> the GCC probe.
> >>
> >> Signed-off-by: Robert Marko <robimarko@xxxxxxxxx>
> >> ---
> > Applying patches 1 and 3 without this one breaks usb, no?
> Sorry, my hands don't keep up with my brain - that's almost another
> speculative execution vulnerability!
>
> What I meant to say is:
>
> applying patches 1 and 2 breaks USB
>
> but
>
> the solution here would be to apply patch 1 and patch 3, followed
> by patch 2 (unless it will make the USB defer, IDK, it's probably
> easier to just test than to dive deep into the code)
>
> with Bjorn taking both subsystems, we can make that work I think

Hi,
Applying patches 1 and 3 without patch 2 will make USB fail with:
# [   11.351681] dwc3-qcom 8af8800.usb: deferred probe timeout,
ignoring dependency
[   11.351729] dwc3-qcom: probe of 8af8800.usb failed with error -110

And yes, applying patches 1 and 2 without patch 3 will also break USB.
That is why I sent this as a series.

Regards,
Robert

>
> Konrad



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