linux-kernel - Re: [RFC PATCH 2/6] mfd: omap-usb-host: Put pins in IDLE state on suspend

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Date:	Thu, 20 Jun 2013 00:21:14 -0700
From:	Tony Lindgren <tony@...mide.com>
To:	Kevin Hilman <khilman@...aro.org>
Cc:	Roger Quadros <rogerq@...com>, stern@...land.harvard.edu,
	balbi@...com, ruslan.bilovol@...com, linux-usb@...r.kernel.org,
	linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Samuel Ortiz <sameo@...ux.intel.com>
Subject: Re: [RFC PATCH 2/6] mfd: omap-usb-host: Put pins in IDLE state on
 suspend

* Kevin Hilman <khilman@...aro.org> [130619 10:30]:
> Hi Roger,
> 
> Roger Quadros <rogerq@...com> writes:
> 
> > In order to support wake up from suspend use the pinctrl
> > framework to put the USB host pins in IDLE state during suspend.
> >
> > CC: Samuel Ortiz <sameo@...ux.intel.com>
> > Signed-off-by: Roger Quadros <rogerq@...com>
> 
> You should use helpers for this now in the pinctrl core:
> 
>     http://lists.infradead.org/pipermail/linux-arm-kernel/2013-June/173514.html

Also see the thread "[PATCH] pinctrl: document the pinctrl PM states"
as we're still discussing how to deal with the various dynamic
pinctrl needs in a generic way. Meanwile, just make sure the other
patches work and don't break anything without this patch to
remove the dependency.

Regards,

Tony
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