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
|
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/mfd/rohm,bd71815-pmic.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: ROHM BD71815 Power Management Integrated Circuit
maintainers:
- Matti Vaittinen <mazziesaccount@gmail.com>
description: |
BD71815AGW is a single-chip power management ICs for battery-powered
portable devices. It integrates 5 buck converters, 8 LDOs, a boost driver
for LED and a 500 mA single-cell linear charger. Also included is a Coulomb
counter, a real-time clock (RTC), and a 32.768 kHz clock gate and two GPOs.
properties:
compatible:
const: rohm,bd71815
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 ../gpio/gpio.txt for more information.
clocks:
maxItems: 1
"#clock-cells":
const: 0
clock-output-names:
const: bd71815-32k-out
rohm,clkout-open-drain:
description: clk32kout mode. Set to 1 for "open-drain" or 0 for "cmos".
$ref: "/schemas/types.yaml#/definitions/uint32"
minimum: 0
maximum: 1
rohm,charger-sense-resistor-ohms:
minimum: 10000000
maximum: 50000000
description: |
BD71827 and BD71828 have SAR ADC for measuring charging currents.
External sense resistor (RSENSE in data sheet) should be used. If
something other but 30MOhm resistor is used the resistance value
should be given here in Ohms.
default: 30000000
regulators:
$ref: ../regulator/rohm,bd71815-regulator.yaml
description:
List of child nodes that specify the regulators.
gpio-reserved-ranges:
description: |
Usage of BD71828 GPIO pins can be changed via OTP. This property can be
used to mark the pins which should not be configured for GPIO. Please see
the ../gpio/gpio.txt for more information.
rohm,enable-hidden-gpo:
description: |
The BD71815 has undocumented GPO at pin E5. Pin is marked as GND at the
data-sheet as its location in the middle of GND pins makes it hard to
use on PCB. If your board has managed to use this pin you can enable the
second GPO by defining this property. Dont enable this if you are unsure
about how the E5 pin is connected on your board.
type: boolean
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,bd71815";
reg = <0x4b>;
interrupt-parent = <&gpio1>;
interrupts = <29 IRQ_TYPE_LEVEL_LOW>;
clocks = <&osc 0>;
#clock-cells = <0>;
clock-output-names = "bd71815-32k-out";
gpio-controller;
#gpio-cells = <2>;
rohm,charger-sense-resistor-ohms = <10000000>;
regulators {
buck1: buck1 {
regulator-name = "buck1";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <2000000>;
regulator-always-on;
regulator-ramp-delay = <1250>;
rohm,dvs-run-voltage = <1150000>;
rohm,dvs-suspend-voltage = <950000>;
};
buck2: buck2 {
regulator-name = "buck2";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <2000000>;
regulator-always-on;
regulator-ramp-delay = <1250>;
rohm,dvs-run-voltage = <1150000>;
rohm,dvs-suspend-voltage = <950000>;
};
buck3: buck3 {
regulator-name = "buck3";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <2700000>;
regulator-always-on;
};
buck4: buck4 {
regulator-name = "buck4";
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1850000>;
regulator-always-on;
};
buck5: buck5 {
regulator-name = "buck5";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
ldo1: ldo1 {
regulator-name = "ldo1";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
ldo2: ldo2 {
regulator-name = "ldo2";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
ldo3: ldo3 {
regulator-name = "ldo3";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
ldo4: ldo4 {
regulator-name = "ldo4";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
ldo5: ldo5 {
regulator-name = "ldo5";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
ldo6: ldodvref {
regulator-name = "ldodvref";
regulator-always-on;
};
ldo7: ldolpsr {
regulator-name = "ldolpsr";
regulator-always-on;
};
boost: wled {
regulator-name = "wled";
regulator-min-microamp = <10>;
regulator-max-microamp = <25000>;
};
};
};
};
|
