65 lines
1.7 KiB
Plaintext
65 lines
1.7 KiB
Plaintext
STMicroelectronics STPMIC1 Voltage regulators
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Regulator Nodes are optional depending on needs.
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Available Regulators in STPMIC1 device are:
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- buck1 for Buck BUCK1
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- buck2 for Buck BUCK2
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- buck3 for Buck BUCK3
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- buck4 for Buck BUCK4
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- ldo1 for LDO LDO1
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- ldo2 for LDO LDO2
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- ldo3 for LDO LDO3
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- ldo4 for LDO LDO4
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- ldo5 for LDO LDO5
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- ldo6 for LDO LDO6
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- vref_ddr for LDO Vref DDR
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- boost for Buck BOOST
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- pwr_sw1 for VBUS_OTG switch
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- pwr_sw2 for SW_OUT switch
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Switches are fixed voltage regulators with only enable/disable capability.
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Optional properties:
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- st,mask-reset: mask reset for this regulator: the regulator configuration
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is maintained during pmic reset.
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- regulator-over-current-protection:
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if set, all regulators are switched off in case of over-current detection
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on this regulator,
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if not set, the driver only sends an over-current event.
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- interrupts: index of current limit detection interrupt
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- <regulator>-supply: phandle to the parent supply/regulator node
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each regulator supply can be described except vref_ddr.
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- regulator-active-discharge: can be used on pwr_sw1 and pwr_sw2.
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Example:
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regulators {
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compatible = "st,stpmic1-regulators";
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ldo6-supply = <&v3v3>;
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vdd_core: buck1 {
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regulator-name = "vdd_core";
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interrupts = <IT_CURLIM_BUCK1 0>;
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st,mask-reset;
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regulator-pull-down;
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regulator-min-microvolt = <700000>;
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regulator-max-microvolt = <1200000>;
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};
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v3v3: buck4 {
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regulator-name = "v3v3";
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interrupts = <IT_CURLIM_BUCK4 0>;
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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};
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v1v8: ldo6 {
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regulator-name = "v1v8";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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regulator-over-current-protection;
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};
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};
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