1 AXP family PMIC device tree bindings
3 The axp20x family current members :
12 - compatible: "x-powers,axp152", "x-powers,axp202", "x-powers,axp209",
13 "x-powers,axp221", "x-powers,axp223", "x-powers,axp806",
15 - reg: The I2C slave address or RSB hardware address for the AXP chip
16 - interrupt-parent: The parent interrupt controller
17 - interrupts: SoC NMI / GPIO interrupt connected to the PMIC's IRQ pin
18 - interrupt-controller: The PMIC has its own internal IRQs
19 - #interrupt-cells: Should be set to 1
22 - x-powers,dcdc-freq: defines the work frequency of DC-DC in KHz
23 AXP152/20X: range: 750-1875, Default: 1.5 MHz
24 AXP22X/80X: range: 1800-4050, Default: 3 MHz
26 - x-powers,drive-vbus-en: axp221 / axp223 only boolean, set this when the
27 N_VBUSEN pin is used as an output pin to control an external
28 regulator to drive the OTG VBus, rather then as an input pin
29 which signals whether the board is driving OTG VBus or not.
31 - x-powers,master-mode: Boolean (axp806 only). Set this when the PMIC is
32 wired for master mode. The default is slave mode.
34 - <input>-supply: a phandle to the regulator supply node. May be omitted if
35 inputs are unregulated, such as using the IPSOUT output
38 - regulators: A node that houses a sub-node for each regulator. Regulators
39 not used but preferred to be managed by the OS should be
41 See Documentation/devicetree/bindings/regulator/regulator.txt
42 for more information on standard regulator bindings.
44 Optional properties for DCDC regulators:
45 - x-powers,dcdc-workmode: 1 for PWM mode, 0 for AUTO (PWM/PFM) mode
46 Default: Current hardware setting
47 The DCDC regulators work in a mixed PWM/PFM mode,
48 using PFM under light loads and switching to PWM
49 for heavier loads. Forcing PWM mode trades efficiency
50 under light loads for lower output noise. This
51 probably makes sense for HiFi audio related
52 applications that aren't battery constrained.
54 AXP202/AXP209 regulators, type, and corresponding input supply names:
56 Regulator Type Supply Name Notes
57 --------- ---- ----------- -----
58 DCDC2 : DC-DC buck : vin2-supply
59 DCDC3 : DC-DC buck : vin3-supply
60 LDO1 : LDO : acin-supply : always on
61 LDO2 : LDO : ldo24in-supply : shared supply
62 LDO3 : LDO : ldo3in-supply
63 LDO4 : LDO : ldo24in-supply : shared supply
64 LDO5 : LDO : ldo5in-supply
66 AXP221/AXP223 regulators, type, and corresponding input supply names:
68 Regulator Type Supply Name Notes
69 --------- ---- ----------- -----
70 DCDC1 : DC-DC buck : vin1-supply
71 DCDC2 : DC-DC buck : vin2-supply
72 DCDC3 : DC-DC buck : vin3-supply
73 DCDC4 : DC-DC buck : vin4-supply
74 DCDC5 : DC-DC buck : vin5-supply
75 DC1SW : On/Off Switch : : DCDC1 secondary output
76 DC5LDO : LDO : : input from DCDC5
77 ALDO1 : LDO : aldoin-supply : shared supply
78 ALDO2 : LDO : aldoin-supply : shared supply
79 ALDO3 : LDO : aldoin-supply : shared supply
80 DLDO1 : LDO : dldoin-supply : shared supply
81 DLDO2 : LDO : dldoin-supply : shared supply
82 DLDO3 : LDO : dldoin-supply : shared supply
83 DLDO4 : LDO : dldoin-supply : shared supply
84 ELDO1 : LDO : eldoin-supply : shared supply
85 ELDO2 : LDO : eldoin-supply : shared supply
86 ELDO3 : LDO : eldoin-supply : shared supply
87 LDO_IO0 : LDO : ips-supply : GPIO 0
88 LDO_IO1 : LDO : ips-supply : GPIO 1
89 RTC_LDO : LDO : ips-supply : always on
90 DRIVEVBUS : Enable output : drivevbus-supply : external regulator
92 AXP806 regulators, type, and corresponding input supply names:
94 Regulator Type Supply Name Notes
95 --------- ---- ----------- -----
96 DCDCA : DC-DC buck : vina-supply : poly-phase capable
97 DCDCB : DC-DC buck : vinb-supply : poly-phase capable
98 DCDCC : DC-DC buck : vinc-supply : poly-phase capable
99 DCDCD : DC-DC buck : vind-supply : poly-phase capable
100 DCDCE : DC-DC buck : vine-supply : poly-phase capable
101 ALDO1 : LDO : aldoin-supply : shared supply
102 ALDO2 : LDO : aldoin-supply : shared supply
103 ALDO3 : LDO : aldoin-supply : shared supply
104 BLDO1 : LDO : bldoin-supply : shared supply
105 BLDO2 : LDO : bldoin-supply : shared supply
106 BLDO3 : LDO : bldoin-supply : shared supply
107 BLDO4 : LDO : bldoin-supply : shared supply
108 CLDO1 : LDO : cldoin-supply : shared supply
109 CLDO2 : LDO : cldoin-supply : shared supply
110 CLDO3 : LDO : cldoin-supply : shared supply
111 SW : On/Off Switch : swin-supply
113 Additionally, the AXP806 DC-DC regulators support poly-phase arrangements
114 for higher output current. The possible groupings are: A+B, A+B+C, D+E.
116 AXP809 regulators, type, and corresponding input supply names:
118 Regulator Type Supply Name Notes
119 --------- ---- ----------- -----
120 DCDC1 : DC-DC buck : vin1-supply
121 DCDC2 : DC-DC buck : vin2-supply
122 DCDC3 : DC-DC buck : vin3-supply
123 DCDC4 : DC-DC buck : vin4-supply
124 DCDC5 : DC-DC buck : vin5-supply
125 DC1SW : On/Off Switch : : DCDC1 secondary output
126 DC5LDO : LDO : : input from DCDC5
127 ALDO1 : LDO : aldoin-supply : shared supply
128 ALDO2 : LDO : aldoin-supply : shared supply
129 ALDO3 : LDO : aldoin-supply : shared supply
130 DLDO1 : LDO : dldoin-supply : shared supply
131 DLDO2 : LDO : dldoin-supply : shared supply
132 ELDO1 : LDO : eldoin-supply : shared supply
133 ELDO2 : LDO : eldoin-supply : shared supply
134 ELDO3 : LDO : eldoin-supply : shared supply
135 LDO_IO0 : LDO : ips-supply : GPIO 0
136 LDO_IO1 : LDO : ips-supply : GPIO 1
137 RTC_LDO : LDO : ips-supply : always on
138 SW : On/Off Switch : swin-supply
143 compatible = "x-powers,axp209";
145 interrupt-parent = <&nmi_intc>;
146 interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
147 interrupt-controller;
148 #interrupt-cells = <1>;
151 x-powers,dcdc-freq = <1500>;
155 regulator-min-microvolt = <1000000>;
156 regulator-max-microvolt = <1450000>;
157 regulator-name = "vdd-cpu";
162 regulator-min-microvolt = <1000000>;
163 regulator-max-microvolt = <1400000>;
164 regulator-name = "vdd-int-dll";
169 regulator-min-microvolt = <1200000>;
170 regulator-max-microvolt = <1400000>;
171 regulator-name = "vdd-rtc";
176 regulator-min-microvolt = <2700000>;
177 regulator-max-microvolt = <3300000>;
178 regulator-name = "avcc";
182 /* unused but preferred to be managed by OS */