omap_hsmmc: Allow for a shared VccQ

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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>

...

This commit is contained in:

Adrian Hunter 2010-02-15 10:03:34 -08:00 • committed by Tony Lindgren

parent 6da20c89af

commit e0eb242446

4 changed files with 22 additions and 1 deletions

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3

arch/arm/mach-omap2/hsmmc.c

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1

arch/arm/mach-omap2/hsmmc.h

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3

arch/arm/plat-omap/include/plat/mmc.h

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16

drivers/mmc/host/omap_hsmmc.c

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