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Date:	Tue, 25 Sep 2012 17:59:52 +0530
From:	Jassi Brar <jaswinder.singh@...aro.org>
To:	balbi@...com
Cc:	Grazvydas Ignotas <notasas@...il.com>,
	Sourav Poddar <sourav.poddar@...com>,
	gregkh@...uxfoundation.org, alan@...ux.intel.com, tony@...mide.com,
	khilman@...com, linux-omap@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-serial@...r.kernel.org,
	linux-kernel@...r.kernel.org, santosh.shilimkar@...com,
	paul@...an.com
Subject: Re: [RFT/PATCH] serial: omap: prevent resume if device is not suspended.

On 19 September 2012 17:29, Felipe Balbi <balbi@...com> wrote:

> this is what I mean, actually. If we remove pm_runtime_get_sync() in
> exchange for pm_runtime_set_active() before pm_runtime_enable(), it
> works on PandaBoard, but breaks BeagleBoard.
>
Perhaps it suggests that OMAP4 (PandaBoard) serial port is already
activated but OMAP3 (BeagleBoard) isn't. So we need to reflect that
either by doing pm_runtime_set_active() only on OMAP4 or by bringing
up the OMAP3 too before the pm_runtime_set_active() call.
BTW I understand get_sync(), set_active() and enable() are for
different purposes, they can't be traded for one another.
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