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
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
|
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/mfd/rohm,bd72720-pmic.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: ROHM BD72720 and BD73900 Power Management Integrated Circuits
maintainers:
- Matti Vaittinen <mazziesaccount@gmail.com>
description:
BD72720 and BD73900 are single-chip power management ICs for
battery-powered portable devices. They integrate 10 bucks and 11 LDOs,
and a 3000 mA switching charger. ICs also include a Coulomb counter,
a real-time clock (RTC), GPIOs and a 32.768 kHz clock gate.
# In addition to the properties found from the charger node, PMICs
# use properties from a static battery node. Please see the:
# Documentation/devicetree/bindings/power/supply/battery.yaml
#
# Following properties are used
# when present:
#
# charge-full-design-microamp-hours: Battry capacity in mAh
# voltage-max-design-microvolt: Maximum voltage
# voltage-min-design-microvolt: Minimum voltage system is still operating.
# degrade-cycle-microamp-hours: Capacity lost due to aging at each full
# charge cycle.
# ocv-capacity-celsius: Array of OCV table temperatures. 1/table.
# ocv-capacity-table-<N>: Table of OCV voltage/SOC pairs. Corresponds
# N.th temperature in ocv-capacity-celsius
#
# volt-drop-thresh-microvolt: Threshold for starting the VDR correction
# volt-drop-soc: Table of capacity values matching the
# values in VDR tables.
#
# volt-drop-temperatures-millicelsius: Temperatures corresponding to the volage
# drop values given in volt-drop-[0-9]-microvolt
#
# volt-drop-[0-9]-microvolt: VDR table for a temperature specified in
# volt-drop-temperatures-millicelsius
#
# VDR tables are (usually) determined for a specific battery by ROHM.
# The battery node would then be referred from the charger node:
#
# monitored-battery = <&battery>;
properties:
compatible:
oneOf:
- const: rohm,bd72720
- items:
- const: rohm,bd73900
- const: rohm,bd72720
reg:
description:
I2C slave address.
maxItems: 1
interrupts:
maxItems: 1
gpio-controller: true
"#gpio-cells":
const: 2
description:
The first cell is the pin number and the second cell is used to specify
flags. See the gpio binding document for more information.
clocks:
maxItems: 1
"#clock-cells":
const: 0
clock-output-names:
const: bd71828-32k-out
rohm,clkout-open-drain:
description: clk32kout mode. Set to 1 for "open-drain" or 0 for "cmos".
$ref: /schemas/types.yaml#/definitions/uint32
maximum: 1
rohm,charger-sense-resistor-micro-ohms:
minimum: 10000
maximum: 50000
description:
PMIC has a SAR ADC for measuring charging currents. External sense
resistor (RSENSE in data sheet) should be used. If some other but
30 mOhm resistor is used the resistance value should be given here in
micro Ohms.
regulators:
$ref: /schemas/regulator/rohm,bd72720-regulator.yaml
description:
List of child nodes that specify the regulators.
leds:
$ref: /schemas/leds/rohm,bd71828-leds.yaml
rohm,pin-fault_b:
$ref: /schemas/types.yaml#/definitions/string
description:
PMIC has an OTP option to use fault_b-pin for different
purposes. Set this property accordingly. OTP options are
OTP0 - bi-directional FAULT_B or READY indicator depending on a
'sub option'
OTP1 - GPO
OTP2 - Power sequencer output.
enum:
- faultb
- readyind
- gpo
- pwrseq
patternProperties:
"^rohm,pin-dvs[0-1]$":
$ref: /schemas/types.yaml#/definitions/string
description:
PMIC has 4 different OTP options to determine the use of dvs<X>-pins.
OTP0 - regulator RUN state control.
OTP1 - GPI.
OTP2 - GPO.
OTP3 - Power sequencer output.
This property specifies the use of the pin.
enum:
- dvs-input
- gpi
- gpo
- pwrseq
"^rohm,pin-exten[0-1]$":
$ref: /schemas/types.yaml#/definitions/string
description: PMIC has an OTP option to use exten0-pin for different
purposes. Set this property accordingly.
OTP0 - GPO
OTP1 - Power sequencer output.
enum:
- gpo
- pwrseq
required:
- compatible
- reg
- interrupts
- clocks
- "#clock-cells"
- regulators
- gpio-controller
- "#gpio-cells"
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/leds/common.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
pmic: pmic@4b {
compatible = "rohm,bd72720";
reg = <0x4b>;
interrupt-parent = <&gpio1>;
interrupts = <29 IRQ_TYPE_LEVEL_LOW>;
clocks = <&osc 0>;
#clock-cells = <0>;
clock-output-names = "bd71828-32k-out";
gpio-controller;
#gpio-cells = <2>;
rohm,pin-dvs0 = "gpi";
rohm,pin-dvs1 = "gpi";
rohm,pin-exten0 = "gpo";
rohm,pin-exten1 = "gpo";
rohm,pin-fault_b = "faultb";
rohm,charger-sense-resistor-micro-ohms = <10000>;
regulators {
buck1 {
regulator-name = "buck1";
regulator-min-microvolt = <500000>;
regulator-max-microvolt = <2000000>;
regulator-ramp-delay = <2500>;
};
buck2 {
regulator-name = "buck2";
regulator-min-microvolt = <500000>;
regulator-max-microvolt = <2000000>;
regulator-ramp-delay = <2500>;
};
buck3 {
regulator-name = "buck3";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <2000000>;
};
buck4 {
regulator-name = "buck4";
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1800000>;
};
buck5 {
regulator-name = "buck5";
regulator-min-microvolt = <2500000>;
regulator-max-microvolt = <3300000>;
};
buck6 {
regulator-name = "buck6";
regulator-min-microvolt = <500000>;
regulator-max-microvolt = <2000000>;
regulator-ramp-delay = <2500>;
};
buck7 {
regulator-name = "buck7";
regulator-min-microvolt = <500000>;
regulator-max-microvolt = <2000000>;
regulator-ramp-delay = <2500>;
};
buck8 {
regulator-name = "buck8";
regulator-min-microvolt = <500000>;
regulator-max-microvolt = <1700000>;
regulator-ramp-delay = <2500>;
rohm,dvs-run-voltage = <1700000>;
rohm,dvs-idle-voltage = <1>;
rohm,dvs-suspend-voltage = <1>;
rohm,dvs-lpsr-voltage = <0>;
regulator-boot-on;
};
buck9 {
regulator-name = "buck9";
regulator-min-microvolt = <500000>;
regulator-max-microvolt = <1700000>;
regulator-ramp-delay = <2500>;
rohm,dvs-run-voltage = <1700000>;
rohm,dvs-idle-voltage = <1>;
rohm,dvs-suspend-voltage = <1>;
rohm,dvs-lpsr-voltage = <0>;
regulator-boot-on;
};
buck10 {
regulator-name = "buck10";
regulator-min-microvolt = <500000>;
regulator-max-microvolt = <1700000>;
regulator-ramp-delay = <2500>;
rohm,dvs-run-voltage = <1700000>;
rohm,dvs-idle-voltage = <1>;
rohm,dvs-suspend-voltage = <1>;
rohm,dvs-lpsr-voltage = <0>;
regulator-boot-on;
};
ldo1 {
regulator-name = "ldo1";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
};
ldo2 {
regulator-name = "ldo2";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
};
ldo3 {
regulator-name = "ldo3";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
};
ldo4 {
regulator-name = "ldo4";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
};
ldo5 {
regulator-name = "ldo5";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
};
ldo6 {
regulator-name = "ldo6";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
};
ldo7 {
regulator-name = "ldo7";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
};
ldo8 {
regulator-name = "ldo8";
regulator-min-microvolt = <750000>;
regulator-max-microvolt = <3300000>;
rohm,dvs-suspend-voltage = <0>;
rohm,dvs-lpsr-voltage = <1>;
rohm,dvs-run-voltage = <750000>;
};
ldo9 {
regulator-name = "ldo9";
regulator-min-microvolt = <750000>;
regulator-max-microvolt = <3300000>;
rohm,dvs-suspend-voltage = <0>;
rohm,dvs-lpsr-voltage = <1>;
rohm,dvs-run-voltage = <750000>;
};
ldo10 {
regulator-name = "ldo10";
regulator-min-microvolt = <750000>;
regulator-max-microvolt = <3300000>;
rohm,dvs-suspend-voltage = <0>;
rohm,dvs-lpsr-voltage = <1>;
rohm,dvs-run-voltage = <750000>;
};
ldo11 {
regulator-name = "ldo11";
regulator-min-microvolt = <750000>;
regulator-max-microvolt = <3300000>;
rohm,dvs-suspend-voltage = <0>;
rohm,dvs-lpsr-voltage = <1>;
rohm,dvs-run-voltage = <750000>;
};
};
leds {
compatible = "rohm,bd71828-leds";
led-1 {
rohm,led-compatible = "bd71828-grnled";
function = LED_FUNCTION_INDICATOR;
color = <LED_COLOR_ID_GREEN>;
};
led-2 {
rohm,led-compatible = "bd71828-ambled";
function = LED_FUNCTION_CHARGING;
color = <LED_COLOR_ID_AMBER>;
};
};
};
};
|
