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Linux kernel mirror (for testing)
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1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/mfd/rohm,bd71828-pmic.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: ROHM BD71828 Power Management Integrated Circuit bindings
8
9maintainers:
10 - Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
11
12description: |
13 BD71828GW is a single-chip power management IC for battery-powered portable
14 devices. The IC integrates 7 buck converters, 7 LDOs, and a 1500 mA
15 single-cell linear charger. Also included is a Coulomb counter, a real-time
16 clock (RTC), and a 32.768 kHz clock gate.
17
18properties:
19 compatible:
20 const: rohm,bd71828
21
22 reg:
23 description:
24 I2C slave address.
25 maxItems: 1
26
27 interrupts:
28 maxItems: 1
29
30 gpio-controller: true
31
32 "#gpio-cells":
33 const: 2
34 description: |
35 The first cell is the pin number and the second cell is used to specify
36 flags. See ../gpio/gpio.txt for more information.
37
38 clocks:
39 maxItems: 1
40
41 "#clock-cells":
42 const: 0
43
44 clock-output-names:
45 const: bd71828-32k-out
46
47 rohm,charger-sense-resistor-ohms:
48 minimum: 10000000
49 maximum: 50000000
50 description: |
51 BD71827 and BD71828 have SAR ADC for measuring charging currents.
52 External sense resistor (RSENSE in data sheet) should be used. If some
53 other but 30MOhm resistor is used the resistance value should be given
54 here in Ohms.
55
56 regulators:
57 $ref: ../regulator/rohm,bd71828-regulator.yaml
58 description:
59 List of child nodes that specify the regulators.
60
61 leds:
62 $ref: ../leds/rohm,bd71828-leds.yaml
63
64 gpio-reserved-ranges:
65 description: |
66 Usage of BD71828 GPIO pins can be changed via OTP. This property can be
67 used to mark the pins which should not be configured for GPIO. Please see
68 the ../gpio/gpio.txt for more information.
69
70required:
71 - compatible
72 - reg
73 - interrupts
74 - clocks
75 - "#clock-cells"
76 - regulators
77 - gpio-controller
78 - "#gpio-cells"
79
80additionalProperties: false
81
82examples:
83 - |
84 #include <dt-bindings/interrupt-controller/irq.h>
85 #include <dt-bindings/leds/common.h>
86 i2c {
87 #address-cells = <1>;
88 #size-cells = <0>;
89 pmic: pmic@4b {
90 compatible = "rohm,bd71828";
91 reg = <0x4b>;
92
93 interrupt-parent = <&gpio1>;
94 interrupts = <29 IRQ_TYPE_LEVEL_LOW>;
95
96 clocks = <&osc 0>;
97 #clock-cells = <0>;
98 clock-output-names = "bd71828-32k-out";
99
100 gpio-controller;
101 #gpio-cells = <2>;
102 gpio-reserved-ranges = <0 1>, <2 1>;
103
104 rohm,charger-sense-resistor-ohms = <10000000>;
105
106 regulators {
107 buck1: BUCK1 {
108 regulator-name = "buck1";
109 regulator-min-microvolt = <500000>;
110 regulator-max-microvolt = <2000000>;
111 regulator-ramp-delay = <2500>;
112 };
113 buck2: BUCK2 {
114 regulator-name = "buck2";
115 regulator-min-microvolt = <500000>;
116 regulator-max-microvolt = <2000000>;
117 regulator-ramp-delay = <2500>;
118 };
119 buck3: BUCK3 {
120 regulator-name = "buck3";
121 regulator-min-microvolt = <1200000>;
122 regulator-max-microvolt = <2000000>;
123 };
124 buck4: BUCK4 {
125 regulator-name = "buck4";
126 regulator-min-microvolt = <1000000>;
127 regulator-max-microvolt = <1800000>;
128 };
129 buck5: BUCK5 {
130 regulator-name = "buck5";
131 regulator-min-microvolt = <2500000>;
132 regulator-max-microvolt = <3300000>;
133 };
134 buck6: BUCK6 {
135 regulator-name = "buck6";
136 regulator-min-microvolt = <500000>;
137 regulator-max-microvolt = <2000000>;
138 regulator-ramp-delay = <2500>;
139 };
140 buck7: BUCK7 {
141 regulator-name = "buck7";
142 regulator-min-microvolt = <500000>;
143 regulator-max-microvolt = <2000000>;
144 regulator-ramp-delay = <2500>;
145 };
146 ldo1: LDO1 {
147 regulator-name = "ldo1";
148 regulator-min-microvolt = <800000>;
149 regulator-max-microvolt = <3300000>;
150 };
151 ldo2: LDO2 {
152 regulator-name = "ldo2";
153 regulator-min-microvolt = <800000>;
154 regulator-max-microvolt = <3300000>;
155 };
156 ldo3: LDO3 {
157 regulator-name = "ldo3";
158 regulator-min-microvolt = <800000>;
159 regulator-max-microvolt = <3300000>;
160 };
161 ldo4: LDO4 {
162 regulator-name = "ldo4";
163 regulator-min-microvolt = <800000>;
164 regulator-max-microvolt = <3300000>;
165 };
166 ldo5: LDO5 {
167 regulator-name = "ldo5";
168 regulator-min-microvolt = <800000>;
169 regulator-max-microvolt = <3300000>;
170 };
171 ldo6: LDO6 {
172 regulator-name = "ldo6";
173 regulator-min-microvolt = <1800000>;
174 regulator-max-microvolt = <1800000>;
175 };
176 ldo7_reg: LDO7 {
177 regulator-name = "ldo7";
178 regulator-min-microvolt = <800000>;
179 regulator-max-microvolt = <3300000>;
180 };
181 };
182
183 leds {
184 compatible = "rohm,bd71828-leds";
185
186 led-1 {
187 rohm,led-compatible = "bd71828-grnled";
188 function = LED_FUNCTION_INDICATOR;
189 color = <LED_COLOR_ID_GREEN>;
190 };
191 led-2 {
192 rohm,led-compatible = "bd71828-ambled";
193 function = LED_FUNCTION_CHARGING;
194 color = <LED_COLOR_ID_AMBER>;
195 };
196 };
197 };
198 };