[U-Boot] [RESEND PATCH 4/5] usb: host: dwc2: add usb33d supply support for stm32mp1

[Patrick DELAUNAY]

Hi,

> 
> On 10/14/19 10:00 AM, Patrick Delaunay wrote:
> > Enable the usb33d-supply on STM32MP1 SoCs (with "st,stm32mp1-hsotg"
> > compatible), it is the external VBUS and ID sensing comparators supply
> > needed to perform OTG operation.
> 
> I suspect we might need some dwc2-stm32p1.c SoC-specific driver here.
> Adding SoC-specific stuff into common driver doesn't sound right.

Yes, you are right... I perhaps  need to rework this patch.

Today I will drop this part in the V2 patchset.
I will resubmit a other patch later for this part because I need to cross-checks with Linux driver....

This stm32mp1 specific part also exist in our dwc2 kernel driver but I need to check if it can be upstreamed (modification in binding dwc2 is acceptable).

Patrick