1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/regulator/dlg,da9121.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Dialog Semiconductor DA9121 voltage regulator
8
9maintainers:
10  - Adam Ward <Adam.Ward.opensource@diasemi.com>
11
12description: |
13  Dialog Semiconductor DA9121 Single-channel 10A double-phase buck converter
14  Dialog Semiconductor DA9122 Double-channel  5A single-phase buck converter
15  Dialog Semiconductor DA9220 Double-channel  3A single-phase buck converter
16  Dialog Semiconductor DA9217 Single-channel  6A double-phase buck converter
17  Dialog Semiconductor DA9130 Single-channel 10A double-phase buck converter
18  Dialog Semiconductor DA9131 Double-channel  5A single-phase buck converter
19  Dialog Semiconductor DA9132 Double-channel  3A single-phase buck converter
20  Dialog Semiconductor DA9141 Single-channel 40A   quad-phase buck converter
21  Dialog Semiconductor DA9142 Single-channel 20A double-phase buck converter
22
23  Device parameter ranges
24
25  The current limits can be set to at/near double the rated current per channel
26  to allow for transient peaks.
27  Current limit changes when the output is enabled are not supported, as a
28  precaution against undefined behaviour.
29
30  |----------------------------------------------|
31  |               | range & reset default value  |
32  | Device        |------------------------------|
33  |               | microvolt    | microamp      |
34  |----------------------------------------------|
35  | DA9121/DA9130 | Min:  300000 | Min:  7000000 |
36  |               | Max: 1900000 | Max: 20000000 |
37  |----------------------------------------------|
38  | DA9121/DA9131 | Min:  300000 | Min:  3500000 |
39  |               | Max: 1900000 | Max: 10000000 |
40  |----------------------------------------------|
41  | DA9121/DA9131 | Min:  300000 | Min:  3500000 |
42  |               | Max: 1900000 | Max:  6000000 |
43  |----------------------------------------------|
44  | DA9217        | Min:  300000 | Min:  7000000 |
45  |               | Max: 1900000 | Max: 12000000 |
46  |----------------------------------------------|
47  | DA9141        | Min:  300000 | Min: 26000000 |
48  |               | Max: 1300000 | Max: 78000000 |
49  |----------------------------------------------|
50  | DA9142        | Min:  300000 | Min: 13000000 |
51  |               | Max: 1300000 | Max: 39000000 |
52  |----------------------------------------------|
53
54properties:
55  $nodename:
56    pattern: "pmic@[0-9a-f]{1,2}"
57  compatible:
58    enum:
59      - dlg,da9121
60      - dlg,da9122
61      - dlg,da9220
62      - dlg,da9217
63      - dlg,da9130
64      - dlg,da9131
65      - dlg,da9132
66      - dlg,da9141
67      - dlg,da9142
68
69  reg:
70    maxItems: 1
71    description: Specifies the I2C slave address.
72
73  interrupts:
74    maxItems: 1
75    description: IRQ line information.
76
77  dlg,irq-polling-delay-passive-ms:
78    minimum: 1000
79    maximum: 10000
80    description: |
81      Specify the polling period, measured in milliseconds, between interrupt status
82      update checks. Range 1000-10000 ms.
83
84  regulators:
85    type: object
86    additionalProperties: false
87    description: |
88      List of regulators provided by the device
89
90    patternProperties:
91      "^buck([1-2])$":
92        type: object
93        $ref: regulator.yaml#
94        description: |
95          Properties for a single BUCK regulator
96
97        properties:
98          regulator-name:
99            pattern: "^BUCK([1-2])$"
100            description: |
101              BUCK2 present in DA9122, DA9220, DA9131, DA9132 only
102
103          regulator-initial-mode:
104            enum: [ 0, 1, 2, 3 ]
105            description: Defined in include/dt-bindings/regulator/dlg,da9121-regulator.h
106
107          enable-gpios:
108            maxItems: 1
109            description: Specify a valid GPIO for platform control of the regulator
110
111          dlg,ripple-cancel:
112            $ref: /schemas/types.yaml#/definitions/uint32
113            enum: [ 0, 1, 2, 3 ]
114            description: |
115              Defined in include/dt-bindings/regulator/dlg,da9121-regulator.h
116              Only present on multi-channel devices (DA9122, DA9220, DA9131, DA9132)
117
118        unevaluatedProperties: false
119
120required:
121  - compatible
122  - reg
123  - regulators
124
125additionalProperties: false
126
127examples:
128  - |
129    #include <dt-bindings/gpio/gpio.h>
130    #include <dt-bindings/interrupt-controller/irq.h>
131    #include <dt-bindings/regulator/dlg,da9121-regulator.h>
132    i2c {
133      #address-cells = <1>;
134      #size-cells = <0>;
135      pmic@68 {
136        compatible = "dlg,da9121";
137        reg = <0x68>;
138
139        interrupt-parent = <&gpio6>;
140        interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
141
142        dlg,irq-polling-delay-passive-ms = <2000>;
143
144        regulators {
145          DA9121_BUCK1: buck1 {
146            regulator-name = "BUCK1";
147            regulator-min-microvolt = <300000>;
148            regulator-max-microvolt = <1900000>;
149            regulator-min-microamp = <7000000>;
150            regulator-max-microamp = <20000000>;
151            regulator-boot-on;
152            regulator-initial-mode = <DA9121_BUCK_MODE_AUTO>;
153            enable-gpios = <&gpio 1 GPIO_ACTIVE_HIGH>;
154          };
155        };
156      };
157    };
158
159  - |
160    #include <dt-bindings/gpio/gpio.h>
161    #include <dt-bindings/interrupt-controller/irq.h>
162    #include <dt-bindings/regulator/dlg,da9121-regulator.h>
163    i2c {
164      #address-cells = <1>;
165      #size-cells = <0>;
166      pmic@68 {
167        compatible = "dlg,da9122";
168        reg = <0x68>;
169
170        interrupt-parent = <&gpio6>;
171        interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
172
173        dlg,irq-polling-delay-passive-ms = <2000>;
174
175        regulators {
176          DA9122_BUCK1: buck1 {
177            regulator-name = "BUCK1";
178            regulator-min-microvolt = <300000>;
179            regulator-max-microvolt = <1900000>;
180            regulator-min-microamp = <3500000>;
181            regulator-max-microamp = <10000000>;
182            regulator-boot-on;
183            regulator-initial-mode = <DA9121_BUCK_MODE_AUTO>;
184            enable-gpios = <&gpio6 1 GPIO_ACTIVE_HIGH>;
185            dlg,ripple-cancel = <DA9121_BUCK_RIPPLE_CANCEL_NONE>;
186          };
187          DA9122_BUCK2: buck2 {
188            regulator-name = "BUCK2";
189            regulator-min-microvolt = <300000>;
190            regulator-max-microvolt = <1900000>;
191            regulator-min-microamp = <3500000>;
192            regulator-max-microamp = <10000000>;
193            regulator-boot-on;
194            regulator-initial-mode = <DA9121_BUCK_MODE_AUTO>;
195            enable-gpios = <&gpio6 2 GPIO_ACTIVE_HIGH>;
196            dlg,ripple-cancel = <DA9121_BUCK_RIPPLE_CANCEL_NONE>;
197          };
198        };
199      };
200    };
201...
202