linux-kernel - Re: [RFC][PATCH 2/3] usb: roles: Add usb role switch notifier.

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Date:   Thu, 3 Oct 2019 13:37:04 -0700
From:   John Stultz <john.stultz@...aro.org>
To:     Hans de Goede <hdegoede@...hat.com>
Cc:     lkml <linux-kernel@...r.kernel.org>, Yu Chen <chenyu56@...wei.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Felipe Balbi <balbi@...nel.org>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Jun Li <lijun.kernel@...il.com>,
        Valentin Schneider <valentin.schneider@....com>,
        Linux USB List <linux-usb@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>
Subject: Re: [RFC][PATCH 2/3] usb: roles: Add usb role switch notifier.

On Thu, Oct 3, 2019 at 2:25 AM Hans de Goede <hdegoede@...hat.com> wrote:
> On 03-10-2019 01:16, John Stultz wrote:
> > From: Yu Chen <chenyu56@...wei.com>
> >
> > This patch adds notifier for drivers want to be informed of the usb role
> > switch.
>
> I do not see any patches in this series actually using this new
> notifier.
>
> Maybe it is best to drop this patch until we actually have in-kernel
> users of this new API show up ?

Fair point. I'm sort of taking a larger patchset and trying to break
it up into more easily reviewable chunks, but I guess here I mis-cut.

The user is the hikey960 gpio hub driver here:
  https://git.linaro.org/people/john.stultz/android-dev.git/commit/?id=b06158a2d3eb00c914f12c76c93695e92d9af00f

I'll resubmit again later with that patch included.

thanks
-john