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Subject: Re: [PATCH v3 0/6] power: add power sequence library
To: Fabio Estevam <festevam@gmail.com>
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Cc: Peter Chen <peter.chen@nxp.com>,
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        "linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
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From: Joshua Clayton <stillcompiling@gmail.com>
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Date: Mon, 1 Aug 2016 07:55:10 -0700
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On 07/28/2016 09:41 AM, Fabio Estevam wrote:
> Hi Joshua,
>
> On Thu, Jul 28, 2016 at 12:56 PM, Joshua Clayton
> <stillcompiling@gmail.com> wrote:
>
>> I assume there is a v4 coming due to rmk's comments on patch 5.
>> I couldn't figure out where to null the of_node in error paths, but in testing
>> we did put a line of code to null the of_node on release.
>>
>> but...
>> As an aside,
>> I was hoping this series would magically fix a problem
>> with the imx6q-evi which has forced us to disable
>> runtime power management. But it did not. :(
> I also see a similar problem on a mx28 board with a hub.
>
> Does it help in your case if you pass 'usbcore.autosuspend=-1' in the
> kernel command line?
>
> Regards,
>
> Fabio Estevam
Thanks a million, Fabio!

'usbcore.autosuspend=-1' quiets the errors.

~joshua

P.S. I guess this technically is a bug in chipidea usb.
I'll give it a quick once over, though I am not very familiar
with USB core or the CI driver.