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

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Message-ID: <20171212002742.7tcx6fztf2wx45te@sasha-lappy>
Date:   Tue, 12 Dec 2017 00:27:44 +0000
From:   alexander.levin@...izon.com
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:     Ben Hutchings <ben.hutchings@...ethink.co.uk>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...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" <linux-usb@...r.kernel.org>,
        Minas Harutyunyan <hminas@...opsys.com>,
        "John Stultz" <john.stultz@...aro.org>
Subject: Re: [PATCH 4.4 13/49] usb: dwc2: Fix UDC state tracking

On Sat, Dec 09, 2017 at 06:12:56PM +0100, Greg Kroah-Hartman wrote:
>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?

Sure, I'll resend this.

-- 

Thanks,
Sasha