Re: [PATCH v4 0/5] Add onboard-dev USB hub host managed vbus handling support

Marco Felsch
2026-02-23T11:30:11Z

On 26-02-10, Greg Kroah-Hartman wrote:
> On Tue, Feb 10, 2026 at 01:32:28PM +0100, Marco Felsch wrote:
> > Hi,
> >
> > On 26-02-10, Ze Huang wrote:
> > > On Fri Sep 12, 2025 at 4:22 AM CST, Marco Felsch wrote:
> > > > Hi,
> > > >
> > > > the whole purpose of this series is to make it possible to control the
> > > > USB VBUS regulators of an USB hub via host managed regulators.
> > > >
> > > > Regards,
> > > > Marco
> > > >
> > > > ---
> > > > Changes in v4:
> > > > - dt-bindings: change to vbus-supply and shift doc to usb-device.yaml
> > > > - onboard_dev: make use of new regulator API to parse child device
> > > > regulators.
> > > > - onboard_dev: drop hard coded downstream port number and make it more
> > > > dynamic
> > > > - onboard_dev: drop limiting support to SMSC hubs
> > > > - Link to v3: https://lore.kernel.org/r/20250821-v6-16-topic-usb-onboard-dev-v3-0-6d2b38a5d818@pengutronix.de
> > > >
> > > > Changes in v3:
> > > > - fix dt-bindings issues
> > > > - Link to v2: https://lore.kernel.org/all/20250327172803.3404615-1-m.felsch@pengutronix.de/
> > > >
> > > > Changes in v2:
> > > > - fix compile time errors in case the module builds
> > > > - Link to v1: https://lore.kernel.org/all/20240807-b4-v6-10-topic-usb-onboard-dev-v1-0-f33ce21353c9@pengutronix.de/
> > > >
> > > > ---
> > > > Marco Felsch (5):
> > > > usb: port: track the disabled state
> > > > usb: hub: add infrastructure to pass onboard_dev port features
> > > > dt-bindings: usb: usb-device: add usb hub port vbus-supply suppport
> > > > dt-bindings: usb: microchip,usb2514: add vbus-supply example
> > > > usb: misc: onboard_dev: add hub downstream port host vbus-supply handling
> > > >
> > > > .../devicetree/bindings/usb/microchip,usb2514.yaml | 7 ++
> > > > .../devicetree/bindings/usb/usb-device.yaml | 6 ++
> > > > drivers/usb/core/hub.c | 55 +++++++++-
> > > > drivers/usb/core/hub.h | 4 +
> > > > drivers/usb/core/port.c | 6 ++
> > > > drivers/usb/misc/onboard_usb_dev.c | 117 +++++++++++++++++++++
> > > > include/linux/usb.h | 3 +
> > > > 7 files changed, 196 insertions(+), 2 deletions(-)
> > > > ---
> > > > base-commit: 038d61fd642278bab63ee8ef722c50d10ab01e8f
> > > > change-id: 20250821-v6-16-topic-usb-onboard-dev-b8d4d1d8a086
> > > >
> > > > Best regards,
> > >
> > > Hi Marco,
> > >
> > > I'm checking in to ask about the status of this patch series.
> > >
> > > We are currently working on the Spacemit K1 SoC and we have a use case
> > > that requires onboard_dev to manage the USB VBUS regulator. This series
> > > would be very helpful for us :)
> >
> > :)
> >
> > > Link: https://lore.kernel.org/all/DG8QBWSJ79MP.2MVIHFRBX3WXX@linux.dev/
> >
> > Regarding the status of this series. Rob provided his r-b tag once I
> > fixed the minor typo. I also need to fix bug [1] which is triggered by
> > the asix binding. I could move the 'vbus-supply' example to the
> > usb-device.yaml.
> >
> > @Greg, @USB-maintainers
> > Are the driver changes OK?
>
> I have no idea, this thread was from a very long time ago. Please
> resubmit after rebasing on 7.0-rc1 when it is out as we can't do
> anything with any new patches until then anyway.

Done.

Regards,
Marco

>
> thanks,
>
> greg k-h
>

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