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author | Mark Brown <broonie@sirena.org.uk> | 2013-04-28 02:13:43 +0100 |
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committer | Mark Brown <broonie@sirena.org.uk> | 2013-04-28 02:13:43 +0100 |
commit | a2c05e91b991179d43e358d5eb9390f57a59a75f (patch) | |
tree | 6f33a25e977d47558ea914ddd96be05683f1d366 /Documentation | |
parent | 2e1be9f7b359d653331876968e68e849857222d3 (diff) | |
parent | 71622e15dd4d497447d19317d93292184ceb67d9 (diff) | |
download | linux-a2c05e91b991179d43e358d5eb9390f57a59a75f.tar.bz2 |
Merge remote-tracking branch 'regulator/topic/max8952' into v3.9-rc8
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/regulator/max8952.txt | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/regulator/max8952.txt b/Documentation/devicetree/bindings/regulator/max8952.txt new file mode 100644 index 000000000000..866fcdd0f4eb --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/max8952.txt @@ -0,0 +1,52 @@ +Maxim MAX8952 voltage regulator + +Required properties: +- compatible: must be equal to "maxim,max8952" +- reg: I2C slave address, usually 0x60 +- max8952,dvs-mode-microvolt: array of 4 integer values defining DVS voltages + in microvolts. All values must be from range <770000, 1400000> +- any required generic properties defined in regulator.txt + +Optional properties: +- max8952,vid-gpios: array of two GPIO pins used for DVS voltage selection +- max8952,en-gpio: GPIO used to control enable status of regulator +- max8952,default-mode: index of default DVS voltage, from <0, 3> range +- max8952,sync-freq: sync frequency, must be one of following values: + - 0: 26 MHz + - 1: 13 MHz + - 2: 19.2 MHz + Defaults to 26 MHz if not specified. +- max8952,ramp-speed: voltage ramp speed, must be one of following values: + - 0: 32mV/us + - 1: 16mV/us + - 2: 8mV/us + - 3: 4mV/us + - 4: 2mV/us + - 5: 1mV/us + - 6: 0.5mV/us + - 7: 0.25mV/us + Defaults to 32mV/us if not specified. +- any available generic properties defined in regulator.txt + +Example: + + vdd_arm_reg: pmic@60 { + compatible = "maxim,max8952"; + reg = <0x60>; + + /* max8952-specific properties */ + max8952,vid-gpios = <&gpx0 3 0>, <&gpx0 4 0>; + max8952,en-gpio = <&gpx0 1 0>; + max8952,default-mode = <0>; + max8952,dvs-mode-microvolt = <1250000>, <1200000>, + <1050000>, <950000>; + max8952,sync-freq = <0>; + max8952,ramp-speed = <0>; + + /* generic regulator properties */ + regulator-name = "vdd_arm"; + regulator-min-microvolt = <770000>; + regulator-max-microvolt = <1400000>; + regulator-always-on; + regulator-boot-on; + }; |