omap_hsmmc: Allow for a shared VccQ

EMMC can have two voltage supplies, Vcc and VccQ
which are implemented in the code as consumer
supplies vmmc and vmmc_aux.

If the regulator that supplies vmmc_aux is shared
with other consumers, then sending it to sleep
will disrupt those consumers.  However, the
TWL4030-family regulators may have OFF remapped
to SLEEP, in which case 'regulator_disable()'
will put the regulator to sleep only when all
consumers are disabled - which is the desired
behaviour.

This patch adds a platform data field to allow
that option.

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

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/hsmmc.h b/arch/arm/mach-omap2/hsmmc.h
index 2453a7aeaf6f..36f0ba8d89e2 100644
--- a/arch/arm/mach-omap2/hsmmc.h
+++ b/arch/arm/mach-omap2/hsmmc.h
@@ -15,6 +15,7 @@ struct omap2_hsmmc_info {
         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 */
+        bool    vcc_aux_disable_is_sleep; /* Regulator off remapped to sleep */
         int     gpio_cd;        /* or -EINVAL */
         int     gpio_wp;        /* or -EINVAL */
         char    *name;          /* or NULL for default */