linux-kernel - [PATCH] mmc: In mmc_power_up, use previously selected ocr if available

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Message-ID: <20090209132806.GD3278@fedora.yogi>
Date:	Mon, 9 Feb 2009 18:58:08 +0530
From:	Balaji Rao <balajirrao@...nmoko.org>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	Andy Green <andy@...nmoko.com>,
	Pierre Ossman <drzeus-mmc@...eus.cx>
Subject: [PATCH] mmc: In mmc_power_up, use previously selected ocr if
	available

When mmc_power_up is called during unsafe resume, host->ocr should be
used instead of host->ocr_avail.

Signed-off-by: Balaji Rao <balajirrao@...nmoko.org>
Cc: Andy Green <andy@...nmoko.com>
Cc: Pierre Ossman <drzeus-mmc@...eus.cx>
---
 drivers/mmc/core/core.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index df6ce4a..3ad7f87 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -572,7 +572,13 @@ void mmc_set_timing(struct mmc_host *host, unsigned int timing)
  */
 static void mmc_power_up(struct mmc_host *host)
 {
-	int bit = fls(host->ocr_avail) - 1;
+	int bit;
+
+	/* If ocr is set, we use it */
+	if (host->ocr)
+		bit = ffs(host->ocr) - 1;
+	else
+		bit = fls(host->ocr_avail) - 1;
 
 	host->ios.vdd = bit;
 	if (mmc_host_is_spi(host)) {
-- 
1.6.0.6
--
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