omap_hsmmc: Allow for power saving without going off

An eMMC may be always powered on, so that the lowest
power saving state possible is sleeping. Add a field
to the platform data to indicate that.

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

2 files changed, 4 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index 4a05c3722d54..e4ab123cd4d0 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -202,6 +202,9 @@ void __init omap2_hsmmc_init(struct omap2_hsmmc_info *controllers)
                 if (c->power_saving)
                         mmc->slots[0].power_saving = 1;
 
+                if (c->no_off)
+                        mmc->slots[0].no_off = 1;
+
                 /* NOTE:  MMC slots should have a Vcc regulator set up.
                  * This may be from a TWL4030-family chip, another
                  * controllable regulator, or a fixed supply.
diff --git a/arch/arm/mach-omap2/hsmmc.h b/arch/arm/mach-omap2/hsmmc.h
index f641f592ffad..2453a7aeaf6f 100644
--- a/arch/arm/mach-omap2/hsmmc.h
+++ b/arch/arm/mach-omap2/hsmmc.h
@@ -14,6 +14,7 @@ struct omap2_hsmmc_info {
         bool    cover_only;     /* No card detect - just cover switch */
         bool    nonremovable;   /* Nonremovable e.g. eMMC */
         bool    power_saving;   /* Try to sleep or power off when possible */
+        bool    no_off;         /* power_saving and power is not to go off */
         int     gpio_cd;        /* or -EINVAL */
         int     gpio_wp;        /* or -EINVAL */
         char    *name;          /* or NULL for default */