linux-kernel - Re: [PATCH] omap_hsmmc: Flush posted write to IRQ

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Message-ID: <20090408203626.46b03b80@mjolnir.ossman.eu>
Date:	Wed, 8 Apr 2009 20:36:26 +0200
From:	Pierre Ossman <pierre@...man.eu>
To:	Tony Lindgren <tony@...mide.com>
Cc:	Adrian Hunter <adrian.hunter@...ia.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Kevin Hilman <khilman@...prootsystems.com>,
	linux-omap Mailing List <linux-omap@...r.kernel.org>
Subject: Re: [PATCH] omap_hsmmc: Flush posted write to IRQ

On Mon, 6 Apr 2009 09:49:18 -0700
Tony Lindgren <tony@...mide.com> wrote:

> * Adrian Hunter <adrian.hunter@...ia.com> [090406 05:00]:
> > From: Kevin Hilman <khilman@...prootsystems.com>
> >
> > Spurious IRQs seen on MMC after 2.6.29.  Flush posted write in IRQ
> > handler.
> >
> > The interrupt line is released by clearing the error status bits
> > in the MMCHS_STAT register, which must occur before the interrupt
> > handler returns to avoid unwanted irqs.  Hence the need to flush
> > the posted write.
> >
> > Signed-off-by: Kevin Hilman <khilman@...prootsystems.com>
> > Signed-off-by: Adrian Hunter <adrian.hunter@...ia.com>
> 
> Acked-by: Tony Lindgen <tony@...mide.com>
> 

Queued.

-- 
     -- Pierre Ossman

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