mmc: dw_mmc: Handle late vmmc regulators with EPROBE_DEFER

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It is possible to specify a regulator that should be turned on when
dw_mmc is probed.  At the moment dw_mmc will fail to use the regulator
properly if the regulator probes after dw_mmc.  Fix this problem by
honoring EPROBE_DEFER.

At the same time move the regulator code out of the slot init code.
We only specify one regulator for the whole device and other parts of
the code (like suspend/resume) assume that the regulator has only been
enabled once.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Chris Ball <cjb@laptop.org>

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Doug Anderson 2013-06-07 10:28:29 -07:00 • committed by Chris Ball

parent 0ddf03c95b

commit 870556a3df

2 changed files with 24 additions and 14 deletions

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4

Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt

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34

drivers/mmc/host/dw_mmc.c

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