Re: [PATCH v22 1/2] arm64: dts: qcom: sc7180-trogdor: Add nodes for onboard USB hub

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On Wed, Apr 27, 2022 at 02:05:04PM -0700, Doug Anderson wrote:
> Hi,
> 
> On Tue, Apr 26, 2022 at 5:03 PM Matthias Kaehlcke <mka@xxxxxxxxxxxx> wrote:
> >
> > Add nodes for the onboard USB hub on trogdor devices. Remove the
> > 'always-on' property from the hub regulator, since the regulator
> > is now managed by the onboard_usb_hub driver.
> 
> There are people out there that are running trogdor devices with
> upstream Linux. There's not much we can do about it, but probably this
> patch will cause them to fail to probe USB because they won't have
> "CONFIG_USB_ONBOARD_HUB=y". Luckily the commit subject has "USB" in it
> so hopefully it'll be easy to spot, but I wonder if we should add
> something to the commit message that makes that super obvious and
> tells them about the relevant commit, like:
> 
> For anyone using trogdor-based devices on Linux, it should be noted
> that this requires "CONFIG_USB_ONBOARD_HUB=y".

Ok, I'll respin and add the note.

> > Signed-off-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
> > Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
> > Reviewed-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
> > ---
> > Depends on "usb: misc: Add onboard_usb_hub driver" [1] which landed in
> > https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git/commit/?h=usb-testing
> >
> > This patch was split off the above series.
> >
> > [1] https://patchwork.kernel.org/project/linux-usb/list/?series=615531&state=%2A&archive=both
> 
> I presume it will be moderately annoying if this lands in the Qualcomm
> branch before the driver lands in mainline? Otherwise USB will fully
> stop working on the Qualcomm branch. Do we want to postpone landing
> this?

Postponing the trogdor patch sounds good to me.



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