linux-kernel - Re: [PATCH v3 0/6] power: add power sequence library

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Message-ID: <CAOMZO5Dv_X-u6qKqAWtysAqmMw91bVoAaRvnc81yUGDxbd27rA@mail.gmail.com>
Date:	Thu, 28 Jul 2016 13:41:23 -0300
From:	Fabio Estevam <festevam@...il.com>
To:	Joshua Clayton <stillcompiling@...il.com>
Cc:	Peter Chen <peter.chen@....com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Alan Stern <stern@...land.harvard.edu>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Mark Brown <broonie@...nel.org>,
	Sebastian Reichel <sre@...nel.org>,
	"robh+dt@...nel.org" <robh+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Krzysztof Kozłowski <k.kozlowski@...sung.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	USB list <linux-usb@...r.kernel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	"Maciej S. Szmigiero" <mail@...iej.szmigiero.name>,
	Troy Kisky <troy.kisky@...ndarydevices.com>,
	Oscar Curero <oscar@...andei.net>, stephen.boyd@...aro.org,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Fabio Estevam <fabio.estevam@....com>
Subject: Re: [PATCH v3 0/6] power: add power sequence library

Hi Joshua,

On Thu, Jul 28, 2016 at 12:56 PM, Joshua Clayton
<stillcompiling@...il.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