diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-12-10 12:42:54 +0900 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-12-10 12:42:54 +0900 |
| commit | 207f30894a8469849d9f5663149d966ff4d411e8 (patch) | |
| tree | c777ebe2eac0d818cc4c20b39c5e1306dca5f67b /Documentation/devicetree | |
| parent | db58e0270ce36fbcee22147405e1917ce01880ae (diff) | |
| parent | ec4f7b88b4a89253ec922d48f77b269ce5cffc2c (diff) | |
Merge remote-tracking branch 'regulator/topic/gpio' into regulator-next
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/regulator/gpio-regulator.txt | 37 |
1 files changed, 37 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 00000000000..63c659800c0 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/gpio-regulator.txt @@ -0,0 +1,37 @@ +GPIO controlled regulators + +Required properties: +- compatible : Must be "regulator-gpio". +- states : Selection of available voltages and GPIO configs. + if there are no states, then use a fixed regulator + +Optional properties: +- enable-gpio : GPIO to use to enable/disable the regulator. +- gpios : GPIO group used to control voltage. +- 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; + + enable-gpio = <&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; + }; |