regulator: bindings: Add properties for coupled regulators

Some regulators require keeping their voltage spread below defined
max_spread.

Add properties to provide information on regulators' coupling.

Signed-off-by: Maciej Purski <m.purski@samsung.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Maciej Purski 2018-04-23 16:33:38 +02:00 • committed by Mark Brown
commit f98618b345
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