2013-06-24 18:50:16 +08:00
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* Maxim MAX8973 Voltage Regulator
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Required properties:
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2015-06-09 21:47:53 +08:00
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- compatible: must be one of following:
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"maxim,max8973"
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"maxim,max77621".
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2013-06-24 18:50:16 +08:00
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- reg: the i2c slave address of the regulator. It should be 0x1b.
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Any standard regulator properties can be used to configure the single max8973
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DCDC.
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2015-04-23 18:40:23 +08:00
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Optional properties:
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-maxim,externally-enable: boolean, externally control the regulator output
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enable/disable.
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2015-04-23 18:40:24 +08:00
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-maxim,enable-gpio: GPIO for enable control. If the valid GPIO is provided
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then externally enable control will be considered.
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2015-04-23 18:40:23 +08:00
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-maxim,dvs-gpio: GPIO which is connected to DVS pin of device.
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-maxim,dvs-default-state: Default state of GPIO during initialisation.
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1 for HIGH and 0 for LOW.
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-maxim,enable-remote-sense: boolean, enable reote sense.
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-maxim,enable-falling-slew-rate: boolean, enable falling slew rate.
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-maxim,enable-active-discharge: boolean: enable active discharge.
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-maxim,enable-frequency-shift: boolean, enable 9% frequency shift.
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-maxim,enable-bias-control: boolean, enable bias control. By enabling this
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startup delay can be reduce to 20us from 220us.
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2015-07-01 21:01:43 +08:00
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-maxim,enable-etr: boolean, enable Enhanced Transient Response.
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-maxim,enable-high-etr-sensitivity: boolean, Enhanced transient response
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circuit is enabled and set for high sensitivity. If this
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property is available then etr will be enable default.
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Enhanced transient response (ETR) will affect the configuration of CKADV.
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2015-04-23 18:40:23 +08:00
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2016-04-13 17:59:44 +08:00
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-junction-warn-millicelsius: u32, junction warning temperature threshold
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in millicelsius. If die temperature crosses this level then
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device generates the warning interrupts.
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Please note that thermal functionality is only supported on MAX77621. The
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supported threshold warning temperature for MAX77621 are 120 degC and 140 degC.
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2013-06-24 18:50:16 +08:00
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Example:
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max8973@1b {
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2013-06-25 15:07:06 +08:00
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compatible = "maxim,max8973";
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2013-06-24 18:50:16 +08:00
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reg = <0x1b>;
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regulator-min-microvolt = <935000>;
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regulator-max-microvolt = <1200000>;
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regulator-boot-on;
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regulator-always-on;
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};
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