RE: [PATCH v1 2/3] usb: phy: Add driver for the Realtek SoC USB 2.0/3.0 PHY

From: Stanley Chang[昌育德]
Date: Sat May 20 2023 - 01:13:57 EST


Hi Arnd,

> >> I'm pretty sure that drivers/usb/phy/ is deprecated now...
> >>
> >> New drivers should be written for the generic PHY subsystem in
> >> drivers/phy/.
>
> Indeed, I missed that in my review.
>
> > Thanks for your reminder.
> > Will drivers/usb/phy be removed?
> > Is it not allowed to add new drivers?
> >
> > In our application, driver/phy is not suitable.
> > We need to notify the phy driver when the USB hub port status changes.
> > However, generic PHY drivers are designed for various device's PHY.
> > And it seems inappropriate to add this function. So we choose to use
> > driver/usb/phy.
>
> If you run into something that works in the old usbphy layer but can't be done
> in drivers/phy, I think the better solution would be to change the drivers/phy/
> code to add this.
>
> Arnd
>

I would move the code to drivers/phy.
Can I use the "struct usb_phy" interface after adding the code to the driver/phy?

I found that some drivers use "usb_phy" in deivers/phy/.
Can I follow these drivers?

Thanks,
Stanley