diff options
| author | Lee Jones <lee.jones@linaro.org> | 2012-10-15 17:16:59 +0400 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-10-17 17:27:55 +0400 |
| commit | 006694d099e86e5a928fb39bdea280ab42c9d59c (patch) | |
| tree | 3da0d1768e3157e1ff43400a70a9c299a07aa1cc /Documentation/devicetree/bindings/regulator | |
| parent | ddffeb8c4d0331609ef2581d84de4d763607bd37 (diff) | |
| download | linux-006694d099e86e5a928fb39bdea280ab42c9d59c.tar.xz | |
regulator: gpio-regulator: Allow use of GPIO controlled regulators though DT
Here we provide the GPIO Regulator driver with Device Tree capability, so
that when a platform is booting with DT instead of platform data we can
still make full use of it.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'Documentation/devicetree/bindings/regulator')
| -rw-r--r-- | Documentation/devicetree/bindings/regulator/gpio-regulator.txt | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/regulator/gpio-regulator.txt b/Documentation/devicetree/bindings/regulator/gpio-regulator.txt new file mode 100644 index 000000000000..3703be2ab821 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/gpio-regulator.txt @@ -0,0 +1,36 @@ +GPIO controlled regulators + +Required properties: +- compatible : Must be "regulator-gpio". + +Optional properties: +- gpio-enable : GPIO to use to enable/disable the regulator. +- gpios : GPIO group used to control voltage. +- states : Selection of available voltages and GPIO configs. +- startup-delay-us : Startup time in microseconds. +- enable-active-high : Polarity of GPIO is active high (default is low). + +Any property defined as part of the core regulator binding defined in +regulator.txt can also be used. + +Example: + + mmciv: gpio-regulator { + compatible = "regulator-gpio"; + + regulator-name = "mmci-gpio-supply"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <2600000>; + regulator-boot-on; + + gpio-enable = <&gpio0 23 0x4>; + gpios = <&gpio0 24 0x4 + &gpio0 25 0x4>; + states = <1800000 0x3 + 2200000 0x2 + 2600000 0x1 + 2900000 0x0>; + + startup-delay-us = <100000>; + enable-active-high; + }; |