regulator: core: Provide a dummy regulator with full constraints

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When a system has said that it has fully specified constraints for its
regulators it is still possible that some supplies may be missing,
especially if regulator support has been added to a driver after the
board was integrated. We can handle such situations more gracefully by
providing a dummy regulator.

Unless the caller has specifically indicated that the system design may
not include a given regulator by using regulator_get_optional() or that
it needs its interactions to have an effect using regulator_get_exclusive()
provide a dummy regulator if we can't locate a real one.

The kconfig option REGULATOR_DUMMY that provided similar behaviour for all
regulators has been removed, systems that need it should flag that they
have full constraints instead.

Signed-off-by: Mark Brown <broonie@linaro.org>

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This commit is contained in:

Mark Brown 2013-09-13 19:50:37 +01:00

parent 272b98c645

commit 4ddfebd3b0

2 changed files with 19 additions and 27 deletions

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10

drivers/regulator/Kconfig

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36

drivers/regulator/core.c

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