AXP family PMIC device tree bindings The axp20x family current members : axp152 (X-Powers) axp202 (X-Powers) axp209 (X-Powers) axp221 (X-Powers) axp223 (X-Powers) axp803 (X-Powers) axp806 (X-Powers) axp809 (X-Powers) axp813 (X-Powers) The AXP813 is 2 chips packaged into 1. The 2 chips do not share anything other than the packaging. Pins are routed separately. As such they should be treated as separate entities. The other half is an AC100 RTC/codec combo chip. Please see ./ac100.txt for its bindings. Required properties: - compatible: should be one of: * "x-powers,axp152" * "x-powers,axp202" * "x-powers,axp209" * "x-powers,axp221" * "x-powers,axp223" * "x-powers,axp803" * "x-powers,axp806" * "x-powers,axp809" * "x-powers,axp813" - reg: The I2C slave address or RSB hardware address for the AXP chip - interrupt-parent: The parent interrupt controller - interrupts: SoC NMI / GPIO interrupt connected to the PMIC's IRQ pin - interrupt-controller: The PMIC has its own internal IRQs - #interrupt-cells: Should be set to 1 Optional properties: - x-powers,dcdc-freq: defines the work frequency of DC-DC in KHz AXP152/20X: range: 750-1875, Default: 1.5 MHz AXP22X/8XX: range: 1800-4050, Default: 3 MHz - x-powers,drive-vbus-en: boolean, set this when the N_VBUSEN pin is used as an output pin to control an external regulator to drive the OTG VBus, rather then as an input pin which signals whether the board is driving OTG VBus or not. (axp221 / axp223 / axp813 only) - x-powers,master-mode: Boolean (axp806 only). Set this when the PMIC is wired for master mode. The default is slave mode. - -supply: a phandle to the regulator supply node. May be omitted if inputs are unregulated, such as using the IPSOUT output from the PMIC. - regulators: A node that houses a sub-node for each regulator. Regulators not used but preferred to be managed by the OS should be listed as well. See Documentation/devicetree/bindings/regulator/regulator.txt for more information on standard regulator bindings. Optional properties for DCDC regulators: - x-powers,dcdc-workmode: 1 for PWM mode, 0 for AUTO (PWM/PFM) mode Default: Current hardware setting The DCDC regulators work in a mixed PWM/PFM mode, using PFM under light loads and switching to PWM for heavier loads. Forcing PWM mode trades efficiency under light loads for lower output noise. This probably makes sense for HiFi audio related applications that aren't battery constrained. AXP202/AXP209 regulators, type, and corresponding input supply names: Regulator Type Supply Name Notes --------- ---- ----------- ----- DCDC2 : DC-DC buck : vin2-supply DCDC3 : DC-DC buck : vin3-supply LDO1 : LDO : acin-supply : always on LDO2 : LDO : ldo24in-supply : shared supply LDO3 : LDO : ldo3in-supply LDO4 : LDO : ldo24in-supply : shared supply LDO5 : LDO : ldo5in-supply AXP221/AXP223 regulators, type, and corresponding input supply names: Regulator Type Supply Name Notes --------- ---- ----------- ----- DCDC1 : DC-DC buck : vin1-supply DCDC2 : DC-DC buck : vin2-supply DCDC3 : DC-DC buck : vin3-supply DCDC4 : DC-DC buck : vin4-supply DCDC5 : DC-DC buck : vin5-supply DC1SW : On/Off Switch : : DCDC1 secondary output DC5LDO : LDO : : input from DCDC5 ALDO1 : LDO : aldoin-supply : shared supply ALDO2 : LDO : aldoin-supply : shared supply ALDO3 : LDO : aldoin-supply : shared supply DLDO1 : LDO : dldoin-supply : shared supply DLDO2 : LDO : dldoin-supply : shared supply DLDO3 : LDO : dldoin-supply : shared supply DLDO4 : LDO : dldoin-supply : shared supply ELDO1 : LDO : eldoin-supply : shared supply ELDO2 : LDO : eldoin-supply : shared supply ELDO3 : LDO : eldoin-supply : shared supply LDO_IO0 : LDO : ips-supply : GPIO 0 LDO_IO1 : LDO : ips-supply : GPIO 1 RTC_LDO : LDO : ips-supply : always on DRIVEVBUS : Enable output : drivevbus-supply : external regulator AXP803 regulators, type, and corresponding input supply names: Regulator Type Supply Name Notes --------- ---- ----------- ----- DCDC1 : DC-DC buck : vin1-supply DCDC2 : DC-DC buck : vin2-supply : poly-phase capable DCDC3 : DC-DC buck : vin3-supply : poly-phase capable DCDC4 : DC-DC buck : vin4-supply DCDC5 : DC-DC buck : vin5-supply : poly-phase capable DCDC6 : DC-DC buck : vin6-supply : poly-phase capable DC1SW : On/Off Switch : : DCDC1 secondary output ALDO1 : LDO : aldoin-supply : shared supply ALDO2 : LDO : aldoin-supply : shared supply ALDO3 : LDO : aldoin-supply : shared supply DLDO1 : LDO : dldoin-supply : shared supply DLDO2 : LDO : dldoin-supply : shared supply DLDO3 : LDO : dldoin-supply : shared supply DLDO4 : LDO : dldoin-supply : shared supply ELDO1 : LDO : eldoin-supply : shared supply ELDO2 : LDO : eldoin-supply : shared supply ELDO3 : LDO : eldoin-supply : shared supply FLDO1 : LDO : fldoin-supply : shared supply FLDO2 : LDO : fldoin-supply : shared supply LDO_IO0 : LDO : ips-supply : GPIO 0 LDO_IO1 : LDO : ips-supply : GPIO 1 RTC_LDO : LDO : ips-supply : always on AXP806 regulators, type, and corresponding input supply names: Regulator Type Supply Name Notes --------- ---- ----------- ----- DCDCA : DC-DC buck : vina-supply : poly-phase capable DCDCB : DC-DC buck : vinb-supply : poly-phase capable DCDCC : DC-DC buck : vinc-supply : poly-phase capable DCDCD : DC-DC buck : vind-supply : poly-phase capable DCDCE : DC-DC buck : vine-supply : poly-phase capable ALDO1 : LDO : aldoin-supply : shared supply ALDO2 : LDO : aldoin-supply : shared supply ALDO3 : LDO : aldoin-supply : shared supply BLDO1 : LDO : bldoin-supply : shared supply BLDO2 : LDO : bldoin-supply : shared supply BLDO3 : LDO : bldoin-supply : shared supply BLDO4 : LDO : bldoin-supply : shared supply CLDO1 : LDO : cldoin-supply : shared supply CLDO2 : LDO : cldoin-supply : shared supply CLDO3 : LDO : cldoin-supply : shared supply SW : On/Off Switch : swin-supply Additionally, the AXP806 DC-DC regulators support poly-phase arrangements for higher output current. The possible groupings are: A+B, A+B+C, D+E. AXP809 regulators, type, and corresponding input supply names: Regulator Type Supply Name Notes --------- ---- ----------- ----- DCDC1 : DC-DC buck : vin1-supply DCDC2 : DC-DC buck : vin2-supply DCDC3 : DC-DC buck : vin3-supply DCDC4 : DC-DC buck : vin4-supply DCDC5 : DC-DC buck : vin5-supply DC1SW : On/Off Switch : : DCDC1 secondary output DC5LDO : LDO : : input from DCDC5 ALDO1 : LDO : aldoin-supply : shared supply ALDO2 : LDO : aldoin-supply : shared supply ALDO3 : LDO : aldoin-supply : shared supply DLDO1 : LDO : dldoin-supply : shared supply DLDO2 : LDO : dldoin-supply : shared supply ELDO1 : LDO : eldoin-supply : shared supply ELDO2 : LDO : eldoin-supply : shared supply ELDO3 : LDO : eldoin-supply : shared supply LDO_IO0 : LDO : ips-supply : GPIO 0 LDO_IO1 : LDO : ips-supply : GPIO 1 RTC_LDO : LDO : ips-supply : always on SW : On/Off Switch : swin-supply AXP813 regulators, type, and corresponding input supply names: Regulator Type Supply Name Notes --------- ---- ----------- ----- DCDC1 : DC-DC buck : vin1-supply DCDC2 : DC-DC buck : vin2-supply : poly-phase capable DCDC3 : DC-DC buck : vin3-supply : poly-phase capable DCDC4 : DC-DC buck : vin4-supply DCDC5 : DC-DC buck : vin5-supply : poly-phase capable DCDC6 : DC-DC buck : vin6-supply : poly-phase capable DCDC7 : DC-DC buck : vin7-supply ALDO1 : LDO : aldoin-supply : shared supply ALDO2 : LDO : aldoin-supply : shared supply ALDO3 : LDO : aldoin-supply : shared supply DLDO1 : LDO : dldoin-supply : shared supply DLDO2 : LDO : dldoin-supply : shared supply DLDO3 : LDO : dldoin-supply : shared supply DLDO4 : LDO : dldoin-supply : shared supply ELDO1 : LDO : eldoin-supply : shared supply ELDO2 : LDO : eldoin-supply : shared supply ELDO3 : LDO : eldoin-supply : shared supply FLDO1 : LDO : fldoin-supply : shared supply FLDO2 : LDO : fldoin-supply : shared supply FLDO3 : LDO : fldoin-supply : shared supply LDO_IO0 : LDO : ips-supply : GPIO 0 LDO_IO1 : LDO : ips-supply : GPIO 1 RTC_LDO : LDO : ips-supply : always on SW : On/Off Switch : swin-supply DRIVEVBUS : Enable output : drivevbus-supply : external regulator Example: axp209: pmic@34 { compatible = "x-powers,axp209"; reg = <0x34>; interrupt-parent = <&nmi_intc>; interrupts = <0 IRQ_TYPE_LEVEL_LOW>; interrupt-controller; #interrupt-cells = <1>; regulators { x-powers,dcdc-freq = <1500>; vdd_cpu: dcdc2 { regulator-always-on; regulator-min-microvolt = <1000000>; regulator-max-microvolt = <1450000>; regulator-name = "vdd-cpu"; }; vdd_int_dll: dcdc3 { regulator-always-on; regulator-min-microvolt = <1000000>; regulator-max-microvolt = <1400000>; regulator-name = "vdd-int-dll"; }; vdd_rtc: ldo1 { regulator-always-on; regulator-min-microvolt = <1200000>; regulator-max-microvolt = <1400000>; regulator-name = "vdd-rtc"; }; avcc: ldo2 { regulator-always-on; regulator-min-microvolt = <2700000>; regulator-max-microvolt = <3300000>; regulator-name = "avcc"; }; ldo3 { /* unused but preferred to be managed by OS */ }; }; };