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52 lines
1.9 KiB
52 lines
1.9 KiB
* Maxim MAX8973 Voltage Regulator |
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Required properties: |
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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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- 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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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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-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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-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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-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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-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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Example: |
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max8973@1b { |
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compatible = "maxim,max8973"; |
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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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