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