omap: RX51: Remux to pull eMMC lines down when powering off

It has been discovered that, when eMMC is powered off, current
will flow from OMAP eMMC data pull-ups to the eMMC voltage supply.
Configuring pads for OMAP off-mode does not help because eMMC is
powered off independently of OMAP off-mode.  Hence the pads are
now re-configured when eMMC is powered on or off.

Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/hsmmc.h b/arch/arm/mach-omap2/hsmmc.h
index e946b5f79be1..f641f592ffad 100644
--- a/arch/arm/mach-omap2/hsmmc.h
+++ b/arch/arm/mach-omap2/hsmmc.h
@@ -19,6 +19,8 @@ struct omap2_hsmmc_info {
         char    *name;          /* or NULL for default */
         struct device *dev;     /* returned: pointer to mmc adapter */
         int     ocr_mask;       /* temporary HACK */
+        /* Remux (pad configuation) when powering on/off */
+        void (*remux)(struct device *dev, int slot, int power_on);
 };
 
 #if defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)