Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/mfd/axp20x.txt
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1 AXP family PMIC device tree bindings 2 3 The axp20x family current members : 4 axp152 (X-Powers) 5 axp202 (X-Powers) 6 axp209 (X-Powers) 7 axp221 (X-Powers) 8 axp223 (X-Powers) 9 axp803 (X-Powers) 10 axp806 (X-Powers) 11 axp809 (X-Powers) 12 axp813 (X-Powers) 13 14 The AXP813 is 2 chips packaged into 1. The 2 chips do not share anything 15 other than the packaging. Pins are routed separately. As such they should 16 be treated as separate entities. The other half is an AC100 RTC/codec 17 combo chip. Please see ./ac100.txt for its bindings. 18 19 Required properties: 20 - compatible: should be one of: 21 * "x-powers,axp152" 22 * "x-powers,axp202" 23 * "x-powers,axp209" 24 * "x-powers,axp221" 25 * "x-powers,axp223" 26 * "x-powers,axp803" 27 * "x-powers,axp806" 28 * "x-powers,axp805", "x-powers,axp806" 29 * "x-powers,axp305", "x-powers,axp805", "x-powers,axp806" 30 * "x-powers,axp809" 31 * "x-powers,axp813" 32 - reg: The I2C slave address or RSB hardware address for the AXP chip 33 - interrupt-controller: The PMIC has its own internal IRQs 34 - #interrupt-cells: Should be set to 1 35 36 Supported common regulator properties, see ../regulator/regulator.txt for 37 more information: 38 - regulator-ramp-delay: sets the ramp up delay in uV/us 39 AXP20x/DCDC2: 1600, 800 40 AXP20x/LDO3: 1600, 800 41 - regulator-soft-start: enable the output at the lowest possible voltage and 42 only then set the desired voltage 43 AXP20x/LDO3: software-based implementation 44 45 Optional properties: 46 - interrupts: SoC NMI / GPIO interrupt connected to the PMIC's IRQ pin 47 - x-powers,dcdc-freq: defines the work frequency of DC-DC in KHz 48 AXP152/20X: range: 750-1875, Default: 1.5 MHz 49 AXP22X/8XX: range: 1800-4050, Default: 3 MHz 50 51 - x-powers,drive-vbus-en: boolean, set this when the N_VBUSEN pin is 52 used as an output pin to control an external 53 regulator to drive the OTG VBus, rather then 54 as an input pin which signals whether the 55 board is driving OTG VBus or not. 56 (axp221 / axp223 / axp803/ axp813 only) 57 58 - x-powers,self-working-mode and 59 x-powers,master-mode: Boolean (axp806 only). Set either of these when the 60 PMIC is wired for self-working mode or master mode. 61 If neither is set then slave mode is assumed. 62 This corresponds to how the MODESET pin is wired. 63 64 - <input>-supply: a phandle to the regulator supply node. May be omitted if 65 inputs are unregulated, such as using the IPSOUT output 66 from the PMIC. 67 68 - regulators: A node that houses a sub-node for each regulator. Regulators 69 not used but preferred to be managed by the OS should be 70 listed as well. 71 See Documentation/devicetree/bindings/regulator/regulator.txt 72 for more information on standard regulator bindings. 73 74 Optional properties for DCDC regulators: 75 - x-powers,dcdc-workmode: 1 for PWM mode, 0 for AUTO (PWM/PFM) mode 76 Default: Current hardware setting 77 The DCDC regulators work in a mixed PWM/PFM mode, 78 using PFM under light loads and switching to PWM 79 for heavier loads. Forcing PWM mode trades efficiency 80 under light loads for lower output noise. This 81 probably makes sense for HiFi audio related 82 applications that aren't battery constrained. 83 84 AXP202/AXP209 regulators, type, and corresponding input supply names: 85 86 Regulator Type Supply Name Notes 87 --------- ---- ----------- ----- 88 DCDC2 : DC-DC buck : vin2-supply 89 DCDC3 : DC-DC buck : vin3-supply 90 LDO1 : LDO : acin-supply : always on 91 LDO2 : LDO : ldo24in-supply : shared supply 92 LDO3 : LDO : ldo3in-supply 93 LDO4 : LDO : ldo24in-supply : shared supply 94 LDO5 : LDO : ldo5in-supply 95 96 AXP221/AXP223 regulators, type, and corresponding input supply names: 97 98 Regulator Type Supply Name Notes 99 --------- ---- ----------- ----- 100 DCDC1 : DC-DC buck : vin1-supply 101 DCDC2 : DC-DC buck : vin2-supply 102 DCDC3 : DC-DC buck : vin3-supply 103 DCDC4 : DC-DC buck : vin4-supply 104 DCDC5 : DC-DC buck : vin5-supply 105 DC1SW : On/Off Switch : : DCDC1 secondary output 106 DC5LDO : LDO : : input from DCDC5 107 ALDO1 : LDO : aldoin-supply : shared supply 108 ALDO2 : LDO : aldoin-supply : shared supply 109 ALDO3 : LDO : aldoin-supply : shared supply 110 DLDO1 : LDO : dldoin-supply : shared supply 111 DLDO2 : LDO : dldoin-supply : shared supply 112 DLDO3 : LDO : dldoin-supply : shared supply 113 DLDO4 : LDO : dldoin-supply : shared supply 114 ELDO1 : LDO : eldoin-supply : shared supply 115 ELDO2 : LDO : eldoin-supply : shared supply 116 ELDO3 : LDO : eldoin-supply : shared supply 117 LDO_IO0 : LDO : ips-supply : GPIO 0 118 LDO_IO1 : LDO : ips-supply : GPIO 1 119 RTC_LDO : LDO : ips-supply : always on 120 DRIVEVBUS : Enable output : drivevbus-supply : external regulator 121 122 AXP803 regulators, type, and corresponding input supply names: 123 124 Regulator Type Supply Name Notes 125 --------- ---- ----------- ----- 126 DCDC1 : DC-DC buck : vin1-supply 127 DCDC2 : DC-DC buck : vin2-supply : poly-phase capable 128 DCDC3 : DC-DC buck : vin3-supply : poly-phase capable 129 DCDC4 : DC-DC buck : vin4-supply 130 DCDC5 : DC-DC buck : vin5-supply : poly-phase capable 131 DCDC6 : DC-DC buck : vin6-supply : poly-phase capable 132 DC1SW : On/Off Switch : : DCDC1 secondary output 133 ALDO1 : LDO : aldoin-supply : shared supply 134 ALDO2 : LDO : aldoin-supply : shared supply 135 ALDO3 : LDO : aldoin-supply : shared supply 136 DLDO1 : LDO : dldoin-supply : shared supply 137 DLDO2 : LDO : dldoin-supply : shared supply 138 DLDO3 : LDO : dldoin-supply : shared supply 139 DLDO4 : LDO : dldoin-supply : shared supply 140 ELDO1 : LDO : eldoin-supply : shared supply 141 ELDO2 : LDO : eldoin-supply : shared supply 142 ELDO3 : LDO : eldoin-supply : shared supply 143 FLDO1 : LDO : fldoin-supply : shared supply 144 FLDO2 : LDO : fldoin-supply : shared supply 145 LDO_IO0 : LDO : ips-supply : GPIO 0 146 LDO_IO1 : LDO : ips-supply : GPIO 1 147 RTC_LDO : LDO : ips-supply : always on 148 DRIVEVBUS : Enable output : drivevbus-supply : external regulator 149 150 AXP806 regulators, type, and corresponding input supply names: 151 152 Regulator Type Supply Name Notes 153 --------- ---- ----------- ----- 154 DCDCA : DC-DC buck : vina-supply : poly-phase capable 155 DCDCB : DC-DC buck : vinb-supply : poly-phase capable 156 DCDCC : DC-DC buck : vinc-supply : poly-phase capable 157 DCDCD : DC-DC buck : vind-supply : poly-phase capable 158 DCDCE : DC-DC buck : vine-supply : poly-phase capable 159 ALDO1 : LDO : aldoin-supply : shared supply 160 ALDO2 : LDO : aldoin-supply : shared supply 161 ALDO3 : LDO : aldoin-supply : shared supply 162 BLDO1 : LDO : bldoin-supply : shared supply 163 BLDO2 : LDO : bldoin-supply : shared supply 164 BLDO3 : LDO : bldoin-supply : shared supply 165 BLDO4 : LDO : bldoin-supply : shared supply 166 CLDO1 : LDO : cldoin-supply : shared supply 167 CLDO2 : LDO : cldoin-supply : shared supply 168 CLDO3 : LDO : cldoin-supply : shared supply 169 SW : On/Off Switch : swin-supply 170 171 Additionally, the AXP806 DC-DC regulators support poly-phase arrangements 172 for higher output current. The possible groupings are: A+B, A+B+C, D+E. 173 174 AXP809 regulators, type, and corresponding input supply names: 175 176 Regulator Type Supply Name Notes 177 --------- ---- ----------- ----- 178 DCDC1 : DC-DC buck : vin1-supply 179 DCDC2 : DC-DC buck : vin2-supply 180 DCDC3 : DC-DC buck : vin3-supply 181 DCDC4 : DC-DC buck : vin4-supply 182 DCDC5 : DC-DC buck : vin5-supply 183 DC1SW : On/Off Switch : : DCDC1 secondary output 184 DC5LDO : LDO : : input from DCDC5 185 ALDO1 : LDO : aldoin-supply : shared supply 186 ALDO2 : LDO : aldoin-supply : shared supply 187 ALDO3 : LDO : aldoin-supply : shared supply 188 DLDO1 : LDO : dldoin-supply : shared supply 189 DLDO2 : LDO : dldoin-supply : shared supply 190 ELDO1 : LDO : eldoin-supply : shared supply 191 ELDO2 : LDO : eldoin-supply : shared supply 192 ELDO3 : LDO : eldoin-supply : shared supply 193 LDO_IO0 : LDO : ips-supply : GPIO 0 194 LDO_IO1 : LDO : ips-supply : GPIO 1 195 RTC_LDO : LDO : ips-supply : always on 196 SW : On/Off Switch : swin-supply 197 198 AXP813 regulators, type, and corresponding input supply names: 199 200 Regulator Type Supply Name Notes 201 --------- ---- ----------- ----- 202 DCDC1 : DC-DC buck : vin1-supply 203 DCDC2 : DC-DC buck : vin2-supply : poly-phase capable 204 DCDC3 : DC-DC buck : vin3-supply : poly-phase capable 205 DCDC4 : DC-DC buck : vin4-supply 206 DCDC5 : DC-DC buck : vin5-supply : poly-phase capable 207 DCDC6 : DC-DC buck : vin6-supply : poly-phase capable 208 DCDC7 : DC-DC buck : vin7-supply 209 ALDO1 : LDO : aldoin-supply : shared supply 210 ALDO2 : LDO : aldoin-supply : shared supply 211 ALDO3 : LDO : aldoin-supply : shared supply 212 DLDO1 : LDO : dldoin-supply : shared supply 213 DLDO2 : LDO : dldoin-supply : shared supply 214 DLDO3 : LDO : dldoin-supply : shared supply 215 DLDO4 : LDO : dldoin-supply : shared supply 216 ELDO1 : LDO : eldoin-supply : shared supply 217 ELDO2 : LDO : eldoin-supply : shared supply 218 ELDO3 : LDO : eldoin-supply : shared supply 219 FLDO1 : LDO : fldoin-supply : shared supply 220 FLDO2 : LDO : fldoin-supply : shared supply 221 FLDO3 : LDO : fldoin-supply : shared supply 222 LDO_IO0 : LDO : ips-supply : GPIO 0 223 LDO_IO1 : LDO : ips-supply : GPIO 1 224 RTC_LDO : LDO : ips-supply : always on 225 SW : On/Off Switch : swin-supply 226 DRIVEVBUS : Enable output : drivevbus-supply : external regulator 227 228 Example: 229 230 axp209: pmic@34 { 231 compatible = "x-powers,axp209"; 232 reg = <0x34>; 233 interrupt-parent = <&nmi_intc>; 234 interrupts = <0 IRQ_TYPE_LEVEL_LOW>; 235 interrupt-controller; 236 #interrupt-cells = <1>; 237 238 regulators { 239 x-powers,dcdc-freq = <1500>; 240 241 vdd_cpu: dcdc2 { 242 regulator-always-on; 243 regulator-min-microvolt = <1000000>; 244 regulator-max-microvolt = <1450000>; 245 regulator-name = "vdd-cpu"; 246 }; 247 248 vdd_int_dll: dcdc3 { 249 regulator-always-on; 250 regulator-min-microvolt = <1000000>; 251 regulator-max-microvolt = <1400000>; 252 regulator-name = "vdd-int-dll"; 253 }; 254 255 vdd_rtc: ldo1 { 256 regulator-always-on; 257 regulator-min-microvolt = <1200000>; 258 regulator-max-microvolt = <1400000>; 259 regulator-name = "vdd-rtc"; 260 }; 261 262 avcc: ldo2 { 263 regulator-always-on; 264 regulator-min-microvolt = <2700000>; 265 regulator-max-microvolt = <3300000>; 266 regulator-name = "avcc"; 267 }; 268 269 ldo3 { 270 /* unused but preferred to be managed by OS */ 271 }; 272 }; 273 };
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