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regulator: s2mps11: Document external GPIO control

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Add documentation for new property for controlling (enable/disable) some
of the S2MPS14 regulators by GPIO.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Krzysztof Kozlowski 2014-04-14 10:09:08 +02:00 committed by Mark Brown
parent 97f53d710b
commit 9b63cfbfd1
1 changed files with 14 additions and 0 deletions
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14
Documentation/devicetree/bindings/mfd/s2mps11.txt
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@ -56,6 +56,20 @@ for a particular group of BUCKs. So provide same regulator-ramp-delay<value>.
Grouping of BUCKs sharing ramp rate setting is as follow : BUCK[1, 6],
BUCK[3, 4], and BUCK[7, 8, 10]
On S2MPS14 the LDO10, LDO11 and LDO12 can be configured to external control
over GPIO. To turn this feature on this property must be added to the regulator
sub-node:
- samsung,ext-control-gpios: GPIO specifier for one GPIO
controlling this regulator (enable/disable);
Example:
LDO12 {
regulator-name = "V_EMMC_2.8V";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
samsung,ext-control-gpios = <&gpk0 2 0>;
};
The regulator constraints inside the regulator nodes use the standard regulator
bindings which are documented elsewhere.