mfd: Allow mapping regulator supplies to MFD device from children

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Occasionally, it is useful to map supplies from a child device onto the
MFD device. A typical usecase for this would be if the MFD device is
represented as a single node in device tree. All supplies will be
defined in device tree as existing on the MFD device. When a child
depends on frameworks which might have no knowledge of MFD to lookup
supplies on its behalf the supply will not be found.

This patch adds a list of supplies that should be looked up on the
parent rather than the child as part of the mfd_cell structure.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>

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Charles Keepax 2013-10-15 20:14:21 +01:00 • committed by Mark Brown

parent a06ccd9c37

commit 7fcd427465

2 changed files with 23 additions and 5 deletions

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22

drivers/mfd/mfd-core.c

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6

include/linux/mfd/core.h

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