RE: [PATCH v1] usb: phy: add usb phy notify port status API
From: Stanley Chang[昌育德]
Date: Fri Apr 21 2023 - 04:33:07 EST
>
> On Fri, Apr 21, 2023 at 04:03:31PM +0800, Stanley Chang wrote:
> > In Realtek SoC, the parameter of usb phy is designed to can dynamic
> > tuning base on port status. Therefore, add a notify callback of phy
> > driver when usb port status change.
> >
> > Signed-off-by: Stanley Chang <stanley_chang@xxxxxxxxxxx>
> > ---
> > drivers/usb/core/hub.c | 13 +++++++++++++ include/linux/usb/phy.h |
> > 14 ++++++++++++++
> > 2 files changed, 27 insertions(+)
>
> We can not add callbacks in the kernel that are not actually used, otherwise
> they will just be instantly removed.
>
> Please submit any drivers that need this change at the same time so that we
> can verify that the callback is actually correct and needed, otherwise we can
> not take this change.
>
In this stage, we usb phy driver is not at linux upstream.
For the android GKI, we have to add this callback to upstream or use the vendor hook of android.
I will plan to upstream the realtek usb phy driver.
Thanks,
Stanley