linux-kernel - Re: [mmc] incorrect behavior on resume

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Message-ID: <45D79145.7000604@drzeus.cx>
Date:	Sun, 18 Feb 2007 00:35:33 +0100
From:	Pierre Ossman <drzeus-mmc@...eus.cx>
To:	Alex Dubov <oakad@...oo.com>
CC:	linux-kernel@...r.kernel.org, Pavel Machek <pavel@...e.cz>
Subject: Re: [mmc] incorrect behavior on resume

Alex Dubov wrote:
> And today: yet another problem with mmc.
> It so happens that after resume mmc layer issues requests to the device before mmc_resume_host is
> called at all. Moreover, this prevents the machine from resuming, unless worked around, because
> software timer does not work at this stage of the resume and interrupts may not be delivered (if
> card was removed, for example).

Now this sounds incredibly broken. A child device should never be resumed before
its parent. Pavel, can you comment?

Rgds
-- 
     -- Pierre Ossman

  Linux kernel, MMC maintainer        http://www.kernel.org
  PulseAudio, core developer          http://pulseaudio.org
  rdesktop, core developer          http://www.rdesktop.org
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