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authorIngo Molnar <mingo@kernel.org>2012-07-11 09:41:37 +0200
committerIngo Molnar <mingo@kernel.org>2012-07-11 09:41:37 +0200
commit92254d31444aad272155f7963e65910c402703dd (patch)
tree8e454ebe60cbac9a71b1771d4e471cfe54826963 /drivers/mmc/core/sdio.c
parent707ecec1dc80d54163356a25d145c62083e7be60 (diff)
parentbd0a521e88aa7a06ae7aabaed7ae196ed4ad867a (diff)
Merge tag 'v3.5-rc6' into x86/mce
Merge Linux 3.5-rc6 before merging more code. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/mmc/core/sdio.c')
-rw-r--r--drivers/mmc/core/sdio.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 13d0e95380ab..41c5fd8848f4 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -218,6 +218,12 @@ static int sdio_enable_wide(struct mmc_card *card)
if (ret)
return ret;
+ if ((ctrl & SDIO_BUS_WIDTH_MASK) == SDIO_BUS_WIDTH_RESERVED)
+ pr_warning("%s: SDIO_CCCR_IF is invalid: 0x%02x\n",
+ mmc_hostname(card->host), ctrl);
+
+ /* set as 4-bit bus width */
+ ctrl &= ~SDIO_BUS_WIDTH_MASK;
ctrl |= SDIO_BUS_WIDTH_4BIT;
ret = mmc_io_rw_direct(card, 1, 0, SDIO_CCCR_IF, ctrl, NULL);