From: Denis Karpov <ext-denis.2.karpov@nokia.com>
Date: Tue, 22 Sep 2009 23:44:44 +0000 (-0700)
Subject: omap_hsmmc: set open drain bit correctly
X-Git-Tag: submit/tizen/20141203.153721~14470
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=abb28e731a751f0b6c293a67b3e564eb0e336d53;p=platform%2Fkernel%2Flinux-arm64.git

omap_hsmmc: set open drain bit correctly

The code could set the bit to 1 but not reset it to 0.

Signed-off-by: Denis Karpov <ext-denis.2.karpov@nokia.com>
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Acked-by: Matt Fleming <matt@console-pimps.org>
Cc: Ian Molton <ian@mnementh.co.uk>
Cc: "Roberto A. Foglietta" <roberto.foglietta@gmail.com>
Cc: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Cc: Denis Karpov <ext-denis.2.karpov@nokia.com>
Cc: Pierre Ossman <pierre@ossman.eu>
Cc: Philip Langdale <philipl@overt.org>
Cc: "Madhusudhan" <madhu.cr@ti.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 74d506a6ffe..59f00109033 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -1118,9 +1118,11 @@ static void omap_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 	if (do_send_init_stream)
 		send_init_stream(host);
 
+	con = OMAP_HSMMC_READ(host->base, CON);
 	if (ios->bus_mode == MMC_BUSMODE_OPENDRAIN)
-		OMAP_HSMMC_WRITE(host->base, CON,
-				OMAP_HSMMC_READ(host->base, CON) | OD);
+		OMAP_HSMMC_WRITE(host->base, CON, con | OD);
+	else
+		OMAP_HSMMC_WRITE(host->base, CON, con & ~OD);
 
 	mmc_host_lazy_disable(host->mmc);
 }