Re: [PATCH v2 0/3] Add missing vdd-supply for QUSB2 PHY

From: Shawn Guo
Date: Sun Oct 03 2021 - 23:02:50 EST


Hi Vinod,

On Fri, Oct 01, 2021 at 01:46:23PM +0530, Vinod Koul wrote:
> Hi Shawn,
>
> On 28-09-21, 10:19, Shawn Guo wrote:
> > The series adds missing vdd-supply for QUSB2 PHY which is required for
> > digital circuit. The driver works right now likely because firmware
> > already sets it up. Add it to bindings, driver and DTS that miss the
> > supply.
> >
> > It should not cause problem for existing DTBs:
> > - SC7180, SDM630, SDM845 based platforms already specified vdd-supply
> > in the DTBs.
> > - MSM8996 and MSM8998 platform DTBs miss vdd-supply, but dummy regulator
> > will ensure QUSB2 PHY driver works as before on these platforms.
>
> What about the rest.. I checked SM8350 and SM8250 mtp ones are missing
> this. With the property made mandatory, I guess it would cause these to
> fail right..

>From what I can see, SM8350 and SM8250 use qcom-snps-femto-v2 PHY
rather than qcom-qusb2. So they should not be affected by this series.

Shawn