linux-kernel - [PATCH 3.16.y-ckt 112/118] mmc: sdhci-esdhc: Make 8BIT bus work

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Message-Id: <1439369820-27005-113-git-send-email-luis.henriques@canonical.com>
Date:	Wed, 12 Aug 2015 09:56:54 +0100
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Joakim Tjernlund <joakim.tjernlund@...nsmode.se>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.16.y-ckt 112/118] mmc: sdhci-esdhc: Make 8BIT bus work

3.16.7-ckt16 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Joakim Tjernlund <Joakim.Tjernlund@...nsmode.se>

commit 8e91125ff3f57f15c6568e2a6d32743b3f7815e4 upstream.

Support for 8BIT bus with was added some time ago to sdhci-esdhc but
then missed to remove the 8BIT from the reserved bit mask which made
8BIT non functional.

Fixes: 66b50a00992d ("mmc: esdhc: Add support for 8-bit bus width and..")
Signed-off-by: Joakim Tjernlund <joakim.tjernlund@...nsmode.se>
Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 drivers/mmc/host/sdhci-esdhc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sdhci-esdhc.h b/drivers/mmc/host/sdhci-esdhc.h
index 3497cfaf683c..a870c42731d7 100644
--- a/drivers/mmc/host/sdhci-esdhc.h
+++ b/drivers/mmc/host/sdhci-esdhc.h
@@ -45,6 +45,6 @@
 #define ESDHC_DMA_SYSCTL	0x40c
 #define ESDHC_DMA_SNOOP		0x00000040
 
-#define ESDHC_HOST_CONTROL_RES	0x05
+#define ESDHC_HOST_CONTROL_RES	0x01
 
 #endif /* _DRIVERS_MMC_SDHCI_ESDHC_H */
--
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