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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], Grouping of BUCKs sharing ramp rate setting is as follow : BUCK[1, 6],
BUCK[3, 4], and BUCK[7, 8, 10] 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 The regulator constraints inside the regulator nodes use the standard regulator
bindings which are documented elsewhere. bindings which are documented elsewhere.