ROHM BD71837 and BD71847 Power Management Integrated Circuit regulator bindings Required properties: - regulator-name: should be "buck1", ..., "buck8" and "ldo1", ..., "ldo7" for BD71837. For BD71847 names should be "buck1", ..., "buck6" and "ldo1", ..., "ldo6" List of regulators provided by this controller. BD71837 regulators node should be sub node of the BD71837 MFD node. See BD71837 MFD bindings at Documentation/devicetree/bindings/mfd/rohm,bd71837-pmic.txt Regulator nodes should be named to BUCK_ and LDO_. The definition for each of these nodes is defined using the standard binding for regulators at Documentation/devicetree/bindings/regulator/regulator.txt. Note that if BD71837 starts at RUN state you probably want to use regulator-boot-on at least for BUCK6 and BUCK7 so that those are not disabled by driver at startup. LDO5 and LDO6 are supplied by those and if they are disabled at startup the voltage monitoring for LDO5/LDO6 will cause PMIC to reset. The valid names for BD71837 regulator nodes are: BUCK1, BUCK2, BUCK3, BUCK4, BUCK5, BUCK6, BUCK7, BUCK8 LDO1, LDO2, LDO3, LDO4, LDO5, LDO6, LDO7 The valid names for BD71847 regulator nodes are: BUCK1, BUCK2, BUCK3, BUCK4, BUCK5, BUCK6 LDO1, LDO2, LDO3, LDO4, LDO5, LDO6 Optional properties: - rohm,dvs-run-voltage : PMIC default "RUN" state voltage in uV. See below table for bucks which support this. - rohm,dvs-idle-voltage : PMIC default "IDLE" state voltage in uV. See below table for bucks which support this. - rohm,dvs-suspend-voltage : PMIC default "SUSPEND" state voltage in uV. See below table for bucks which support this. - Any optional property defined in bindings/regulator/regulator.txt Supported default DVS states: BD71837: buck | dvs-run-voltage | dvs-idle-voltage | dvs-suspend-voltage ----------------------------------------------------------------------------- 1 | supported | supported | supported ---------------------------------------------------------------------------- 2 | supported | supported | not supported ---------------------------------------------------------------------------- 3 | supported | not supported | not supported ---------------------------------------------------------------------------- 4 | supported | not supported | not supported ---------------------------------------------------------------------------- rest | not supported | not supported | not supported BD71847: buck | dvs-run-voltage | dvs-idle-voltage | dvs-suspend-voltage ----------------------------------------------------------------------------- 1 | supported | supported | supported ---------------------------------------------------------------------------- 2 | supported | supported | not supported ---------------------------------------------------------------------------- rest | not supported | not supported | not supported Example: regulators { buck1: BUCK1 { regulator-name = "buck1"; regulator-min-microvolt = <700000>; regulator-max-microvolt = <1300000>; regulator-boot-on; regulator-always-on; regulator-ramp-delay = <1250>; rohm,dvs-run-voltage = <900000>; rohm,dvs-idle-voltage = <850000>; rohm,dvs-suspend-voltage = <800000>; }; buck2: BUCK2 { regulator-name = "buck2"; regulator-min-microvolt = <700000>; regulator-max-microvolt = <1300000>; regulator-boot-on; regulator-always-on; regulator-ramp-delay = <1250>; rohm,dvs-run-voltage = <1000000>; rohm,dvs-idle-voltage = <900000>; }; buck3: BUCK3 { regulator-name = "buck3"; regulator-min-microvolt = <700000>; regulator-max-microvolt = <1300000>; regulator-boot-on; rohm,dvs-run-voltage = <1000000>; }; buck4: BUCK4 { regulator-name = "buck4"; regulator-min-microvolt = <700000>; regulator-max-microvolt = <1300000>; regulator-boot-on; rohm,dvs-run-voltage = <1000000>; }; buck5: BUCK5 { regulator-name = "buck5"; regulator-min-microvolt = <700000>; regulator-max-microvolt = <1350000>; regulator-boot-on; }; buck6: BUCK6 { regulator-name = "buck6"; regulator-min-microvolt = <3000000>; regulator-max-microvolt = <3300000>; regulator-boot-on; }; buck7: BUCK7 { regulator-name = "buck7"; regulator-min-microvolt = <1605000>; regulator-max-microvolt = <1995000>; regulator-boot-on; }; buck8: BUCK8 { regulator-name = "buck8"; regulator-min-microvolt = <800000>; regulator-max-microvolt = <1400000>; }; ldo1: LDO1 { regulator-name = "ldo1"; regulator-min-microvolt = <3000000>; regulator-max-microvolt = <3300000>; regulator-boot-on; }; ldo2: LDO2 { regulator-name = "ldo2"; regulator-min-microvolt = <900000>; regulator-max-microvolt = <900000>; regulator-boot-on; }; ldo3: LDO3 { regulator-name = "ldo3"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; }; ldo4: LDO4 { regulator-name = "ldo4"; regulator-min-microvolt = <900000>; regulator-max-microvolt = <1800000>; }; ldo5: LDO5 { regulator-name = "ldo5"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; }; ldo6: LDO6 { regulator-name = "ldo6"; regulator-min-microvolt = <900000>; regulator-max-microvolt = <1800000>; }; ldo7_reg: LDO7 { regulator-name = "ldo7"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; }; };