From: Kevin Hilman <khilman@deeprootsystems.com>
Date: Wed, 1 Apr 2009 23:12:47 +0000 (+0000)
Subject: MMC: OMAP: flush posted write to IRQ
X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?p=linux-2.6-omap-h63xx.git;a=commitdiff_plain;h=b420f201e8c3bba92606fb98a032ee019804835d

MMC: OMAP: flush posted write to IRQ

Spurious IRQs seen on MMC after 2.6.29.  Flush posted write in IRQ
handler.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 3916a5618e2..4270676f33f 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -464,6 +464,7 @@ static irqreturn_t mmc_omap_irq(int irq, void *dev_id)
 	}
 
 	OMAP_HSMMC_WRITE(host->base, STAT, status);
+	OMAP_HSMMC_READ(host->base, STAT); /* flush posted write */
 
 	if (end_cmd || (status & CC))
 		mmc_omap_cmd_done(host, host->cmd);