summaryrefslogtreecommitdiffstats
path: root/dts/Bindings/mfd/axp20x.txt
blob: 9455503b02993109cb0621519654eacadbc2f35a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
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.

- <input>-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 */
		};
	};
};