linux-kernel - Re: [PATCH 4.4 13/49] usb: dwc2: Fix UDC state tracking

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Date:   Sat, 9 Dec 2017 18:12:56 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Ben Hutchings <ben.hutchings@...ethink.co.uk>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Wei Xu <xuwei5@...ilicon.com>,
        Guodong Xu <guodong.xu@...aro.org>,
        Amit Pundir <amit.pundir@...aro.org>,
        YongQin Liu <yongqin.liu@...aro.org>,
        John Youn <johnyoun@...opsys.com>,
        Minas Harutyunyan <Minas.Harutyunyan@...opsys.com>,
        Douglas Anderson <dianders@...omium.org>,
        Chen Yu <chenyu56@...wei.com>,
        Felipe Balbi <felipe.balbi@...ux.intel.com>,
        linux-usb@...r.kernel.org, Minas Harutyunyan <hminas@...opsys.com>,
        John Stultz <john.stultz@...aro.org>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: Re: [PATCH 4.4 13/49] usb: dwc2: Fix UDC state tracking

On Fri, Dec 08, 2017 at 03:37:17AM +0000, Ben Hutchings wrote:
> On Thu, 2017-12-07 at 14:07 +0100, Greg Kroah-Hartman wrote:
> > 4.4-stable review patch.  If anyone has any objections, please let me
> > know.
> > 
> > ------------------
> > 
> > From: John Stultz <john.stultz@...aro.org>
> > 
> > 
> > [ Upstream commit ce2b21a4e5ce042c0a42c9db8fa9e0f849427d5e ]
> > 
> > It has been noticed that the dwc2 udc state reporting doesn't
> > seem to work (at least on HiKey boards). Where after the initial
> > setup, the sysfs /sys/class/udc/f72c0000.usb/state file would
> > report "configured" no matter the state of the OTG port.
> > 
> > This patch adds a call so that we report to the UDC layer when
> > the gadget device is disconnected.
> > 
> > This patch does depend on the previous patch ("usb: dwc2:
> > Improve gadget state disconnection handling") in this patch set
> > in order to properly work.
> 
> Then you should add that (commit d2471d4a24df).

Ah, but that patch doesn't apply :(

So, I've dropped this one, and the one after this one (which depended on
this one), so all should be back to how things were.

Sasha, can you fix this up and submit all 3 for the 4.4, 4.9 and 4.14
trees sometime in the future?

thanks,

greg k-h