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

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>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/mmc/sdio.h b/include/linux/mmc/sdio.h
index 47ba464f5170..0ebaef577ff5 100644
--- a/include/linux/mmc/sdio.h
+++ b/include/linux/mmc/sdio.h
@@ -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