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authorTakashi Iwai <tiwai@suse.de>2012-07-04 09:12:50 +0200
committerTakashi Iwai <tiwai@suse.de>2012-07-04 09:12:50 +0200
commitf68d891d85c8f9ab1af663ed3ceac18ad58dbabe (patch)
treed92db7af512307ab5282eb62f3dd1741ac71d21f /drivers/mmc/core/sdio.c
parent5780b627e24113323427c102175296ae43dfb9d7 (diff)
parent3fd877d32cac31292628fb8f443543fc1989b49b (diff)
Merge branch 'topic/hda-beep' into topic/hda
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);