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regulator: pfuze100: add optional disable switch-regulators binding

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This binding is used to keep the backward compatibility with the current
dtb's [1]. The binding informs the driver that the unused switch regulators
can be disabled.
If it is not specified, the driver doesn't disable the switch regulators.

[1] https://patchwork.kernel.org/patch/10490381/

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Marco Felsch 2018-07-23 09:47:46 +02:00 committed by Mark Brown
parent 37164571fb
commit 78170811a2
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9
Documentation/devicetree/bindings/regulator/pfuze100.txt
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@ -4,6 +4,15 @@ Required properties:
- compatible: "fsl,pfuze100", "fsl,pfuze200", "fsl,pfuze3000", "fsl,pfuze3001"
- reg: I2C slave address
Optional properties:
- fsl,pfuze-support-disable-sw: Boolean, if present disable all unused switch
regulators to save power consumption. Attention, ensure that all important
regulators (e.g. DDR ref, DDR supply) has set the "regulator-always-on"
property. If not present, the switched regualtors are always on and can't be
disabled. This binding is a workaround to keep backward compatibility with
old dtb's which rely on the fact that the switched regulators are always on
and don't mark them explicit as "regulator-always-on".
Required child node:
- regulators: This is the list of child nodes that specify the regulator
initialization data for defined regulators. Please refer to below doc