linux-kernel - Re: PROBLEM: DWC3 USB 3.0 not working on Odroid-XU4 with Exynos 5422

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Message-ID: <87y420wqoy.fsf@linux.intel.com>
Date:   Fri, 07 Oct 2016 10:42:21 +0300
From:   Felipe Balbi <balbi@...nel.org>
To:     Michael Niewöhner <linux@...ewoehner.de>,
        Vivek Gautam <vivek.gautam@...eaurora.org>
Cc:     Alim Akhtar <alim.akhtar@...sung.com>,
        Pankaj Dubey <pankaj.dubey@...sung.com>,
        Anand Moon <linux.amoon@...il.com>,
        Mathias Nyman <mathias.nyman@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Kukjin Kim <kgene@...nel.org>,
        Krzysztof Kozlowski <k.kozlowski@...sung.com>,
        Linux USB Mailing List <linux-usb@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        "linux-samsung-soc\@vger.kernel.org" 
        <linux-samsung-soc@...r.kernel.org>,
        Linux Kernel <linux-kernel@...r.kernel.org>,
        Vivek Gautam <gautam.vivek@...sung.com>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Pankaj Dubey <pankaj.dubey@...sung.com>
Subject: Re: PROBLEM: DWC3 USB 3.0 not working on Odroid-XU4 with Exynos 5422


Hi,

Michael Niewöhner <linux@...ewoehner.de> writes:
>> The clocks are same across working/non-working.
>> Is it possible to bisect the commit that's causing hang for 4.8x ?
>
>
> [c499ff71ff2a281366c6ec7a904c547d806cbcd1] usb: dwc3: core: re-factor init and exit paths
> This patch causes both the hang on reboot and the lsusb hang.

How to reproduce? Why don't we see this on x86 and TI boards? I'm
guessing this is failed bisection, as I can't see anything in that
commit that would cause reboot hang. Also, that code path is *NOT*
executed when you run lsusb.

-- 
balbi

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