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Subject[PATCH 3/4] Documentation: regulator: s2mps11: Document external GPIO control
Date
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>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: devicetree@vger.kernel.org
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
---
Documentation/devicetree/bindings/mfd/s2mps11.txt | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/s2mps11.txt b/Documentation/devicetree/bindings/mfd/s2mps11.txt
index 802e839b0829..d81ba30c0d8b 100644
--- a/Documentation/devicetree/bindings/mfd/s2mps11.txt
+++ b/Documentation/devicetree/bindings/mfd/s2mps11.txt
@@ -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.

--
1.8.3.2


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