From: Alexander Elbs <alex@segv.de>
Date: Wed, 4 Jan 2012 04:26:53 +0000 (-0500)
Subject: mmc: sd: Fix SDR12 timing regression
X-Git-Tag: v3.2.2~70
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=37cd47c536d36a5bd5c7e9b83960aa5913758fec;p=profile%2Fivi%2Fkernel-adaptation-intel-automotive.git

mmc: sd: Fix SDR12 timing regression

commit dd8df17fe83483d7ea06ff229895e35a42071599 upstream.

This patch fixes a failure to recognize SD cards reported on a Dell
Vostro with O2 Micro SD card reader.  Patch 49c468f ("mmc: sd: add
support for uhs bus speed mode selection") caused the problem, by
setting the SDHCI_CTRL_HISPD flag even for legacy timings.

Signed-off-by: Alexander Elbs <alex@segv.de>
Acked-by: Philip Rakity <prakity@marvell.com>
Acked-by: Arindam Nath <arindam.nath@amd.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 9279c1b..6ce32a7 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1364,8 +1364,7 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
 		if ((ios->timing == MMC_TIMING_UHS_SDR50) ||
 		    (ios->timing == MMC_TIMING_UHS_SDR104) ||
 		    (ios->timing == MMC_TIMING_UHS_DDR50) ||
-		    (ios->timing == MMC_TIMING_UHS_SDR25) ||
-		    (ios->timing == MMC_TIMING_UHS_SDR12))
+		    (ios->timing == MMC_TIMING_UHS_SDR25))
 			ctrl |= SDHCI_CTRL_HISPD;
 
 		ctrl_2 = sdhci_readw(host, SDHCI_HOST_CONTROL2);