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sdio: put active devices into 1-bit mode during suspend

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And bring them back to 4-bit mode during resume.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Daniel Drake
2010-03-05 13:43:34 -08:00
committed by Linus Torvalds
parent 40216842dc
commit 6b5eda369a
2 changed files with 45 additions and 0 deletions
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2
include/linux/mmc/sdio.h
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@ -95,6 +95,8 @@
#define SDIO_BUS_WIDTH_1BIT 0x00
#define SDIO_BUS_WIDTH_4BIT 0x02
#define SDIO_BUS_ASYNC_INT 0x20
#define SDIO_BUS_CD_DISABLE 0x80 /* disable pull-up on DAT3 (pin 1) */
#define SDIO_CCCR_CAPS 0x08