rohm,bd71828-pmic.yaml

  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
  8
  9maintainers:
 10  - Matti Vaittinen <mazziesaccount@gmail.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    oneOf:
 21      - const: rohm,bd71828
 22
 23      - items:
 24          - const: rohm,bd71879
 25          - const: rohm,bd71828
 26
 27  reg:
 28    description:
 29      I2C slave address.
 30    maxItems: 1
 31
 32  interrupts:
 33    maxItems: 1
 34
 35  gpio-controller: true
 36
 37  "#gpio-cells":
 38    const: 2
 39    description: |
 40      The first cell is the pin number and the second cell is used to specify
 41      flags. See ../gpio/gpio.txt for more information.
 42
 43  clocks:
 44    maxItems: 1
 45
 46  "#clock-cells":
 47    const: 0
 48
 49  clock-output-names:
 50    const: bd71828-32k-out
 51
 52  rohm,clkout-open-drain:
 53    description: clk32kout mode. Set to 1 for "open-drain" or 0 for "cmos".
 54    $ref: /schemas/types.yaml#/definitions/uint32
 55    minimum: 0
 56    maximum: 1
 57
 58  rohm,charger-sense-resistor-micro-ohms:
 59    minimum: 10000
 60    maximum: 50000
 61    default: 30000
 62    description: |
 63      BD71827 and BD71828 have SAR ADC for measuring charging currents.
 64      External sense resistor (RSENSE in data sheet) should be used. If some
 65      other but 30mOhm resistor is used the resistance value should be given
 66      here in microohms.
 67
 68  regulators:
 69    $ref: /schemas/regulator/rohm,bd71828-regulator.yaml
 70    description:
 71      List of child nodes that specify the regulators.
 72
 73  leds:
 74    $ref: /schemas/leds/rohm,bd71828-leds.yaml
 75
 76  gpio-reserved-ranges:
 77    description: |
 78      Usage of BD71828 GPIO pins can be changed via OTP. This property can be
 79      used to mark the pins which should not be configured for GPIO. Please see
 80      the ../gpio/gpio.txt for more information.
 81
 82  system-power-controller: true
 83
 84required:
 85  - compatible
 86  - reg
 87  - interrupts
 88  - clocks
 89  - "#clock-cells"
 90  - regulators
 91  - gpio-controller
 92  - "#gpio-cells"
 93
 94additionalProperties: false
 95
 96examples:
 97  - |
 98    #include <dt-bindings/interrupt-controller/irq.h>
 99    #include <dt-bindings/leds/common.h>
100    i2c {
101        #address-cells = <1>;
102        #size-cells = <0>;
103        pmic: pmic@4b {
104            compatible = "rohm,bd71828";
105            reg = <0x4b>;
106
107            interrupt-parent = <&gpio1>;
108            interrupts = <29 IRQ_TYPE_LEVEL_LOW>;
109
110            clocks = <&osc 0>;
111            #clock-cells = <0>;
112            clock-output-names = "bd71828-32k-out";
113
114            gpio-controller;
115            #gpio-cells = <2>;
116            gpio-reserved-ranges = <0 1>, <2 1>;
117
118            rohm,charger-sense-resistor-micro-ohms = <10000>;
119
120            regulators {
121                buck1: BUCK1 {
122                    regulator-name = "buck1";
123                    regulator-min-microvolt = <500000>;
124                    regulator-max-microvolt = <2000000>;
125                    regulator-ramp-delay = <2500>;
126                };
127                buck2: BUCK2 {
128                    regulator-name = "buck2";
129                    regulator-min-microvolt = <500000>;
130                    regulator-max-microvolt = <2000000>;
131                    regulator-ramp-delay = <2500>;
132                };
133                buck3: BUCK3 {
134                    regulator-name = "buck3";
135                    regulator-min-microvolt = <1200000>;
136                    regulator-max-microvolt = <2000000>;
137                };
138                buck4: BUCK4 {
139                    regulator-name = "buck4";
140                    regulator-min-microvolt = <1000000>;
141                    regulator-max-microvolt = <1800000>;
142                };
143                buck5: BUCK5 {
144                    regulator-name = "buck5";
145                    regulator-min-microvolt = <2500000>;
146                    regulator-max-microvolt = <3300000>;
147                };
148                buck6: BUCK6 {
149                    regulator-name = "buck6";
150                    regulator-min-microvolt = <500000>;
151                    regulator-max-microvolt = <2000000>;
152                    regulator-ramp-delay = <2500>;
153                };
154                buck7: BUCK7 {
155                    regulator-name = "buck7";
156                    regulator-min-microvolt = <500000>;
157                    regulator-max-microvolt = <2000000>;
158                    regulator-ramp-delay = <2500>;
159                };
160                ldo1: LDO1 {
161                    regulator-name = "ldo1";
162                    regulator-min-microvolt = <800000>;
163                    regulator-max-microvolt = <3300000>;
164                };
165                ldo2: LDO2 {
166                    regulator-name = "ldo2";
167                    regulator-min-microvolt = <800000>;
168                    regulator-max-microvolt = <3300000>;
169                };
170                ldo3: LDO3 {
171                    regulator-name = "ldo3";
172                    regulator-min-microvolt = <800000>;
173                    regulator-max-microvolt = <3300000>;
174                };
175                ldo4: LDO4 {
176                    regulator-name = "ldo4";
177                    regulator-min-microvolt = <800000>;
178                    regulator-max-microvolt = <3300000>;
179                };
180                ldo5: LDO5 {
181                    regulator-name = "ldo5";
182                    regulator-min-microvolt = <800000>;
183                    regulator-max-microvolt = <3300000>;
184                };
185                ldo6: LDO6 {
186                    regulator-name = "ldo6";
187                    regulator-min-microvolt = <1800000>;
188                    regulator-max-microvolt = <1800000>;
189                };
190                ldo7_reg: LDO7 {
191                    regulator-name = "ldo7";
192                    regulator-min-microvolt = <800000>;
193                    regulator-max-microvolt = <3300000>;
194                };
195            };
196
197            leds {
198                compatible = "rohm,bd71828-leds";
199
200                led-1 {
201                    rohm,led-compatible = "bd71828-grnled";
202                    function = LED_FUNCTION_INDICATOR;
203                    color = <LED_COLOR_ID_GREEN>;
204                };
205                led-2 {
206                    rohm,led-compatible = "bd71828-ambled";
207                    function = LED_FUNCTION_CHARGING;
208                    color = <LED_COLOR_ID_AMBER>;
209                };
210            };
211        };
212    };