1 # SPDX-License-Identifier: GPL-2.0-only OR BSD 1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/regulator/r 4 $id: http://devicetree.org/schemas/regulator/richtek,rt4803.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Richtek RT4803 Boost Regulator 7 title: Richtek RT4803 Boost Regulator
8 8
9 maintainers: 9 maintainers:
10 - ChiYuan Huang <cy_huang@richtek.com> 10 - ChiYuan Huang <cy_huang@richtek.com>
11 11
12 description: | 12 description: |
13 RT4803 is a boost regulator that's designed 13 RT4803 is a boost regulator that's designed to provide the minimum output
14 voltage, even if the input voltage is lower 14 voltage, even if the input voltage is lower than the required voltage. It
15 supports boost and auto bypass mode that dep 15 supports boost and auto bypass mode that depends on the difference between the
16 input and output voltage. If the input is lo 16 input and output voltage. If the input is lower than the output, mode will
17 transform to boost mode. Otherwise, turn on 17 transform to boost mode. Otherwise, turn on bypass switch to enter bypass mode.
18 18
19 Datasheet is available at 19 Datasheet is available at
20 https://www.richtek.com/assets/product_file/ 20 https://www.richtek.com/assets/product_file/RT4803/DS4803-03.pdf
21 https://www.richtek.com/assets/product_file/ 21 https://www.richtek.com/assets/product_file/RT4803A/DS4803A-06.pdf
22 22
23 allOf: 23 allOf:
24 - $ref: regulator.yaml# 24 - $ref: regulator.yaml#
25 25
26 properties: 26 properties:
27 compatible: 27 compatible:
28 enum: 28 enum:
29 - richtek,rt4803 29 - richtek,rt4803
30 30
31 reg: 31 reg:
32 maxItems: 1 32 maxItems: 1
33 33
34 richtek,vsel-active-high: 34 richtek,vsel-active-high:
35 type: boolean 35 type: boolean
36 description: Specify the VSEL register gro 36 description: Specify the VSEL register group is using when system is active
37 37
38 regulator-allowed-modes: 38 regulator-allowed-modes:
39 description: | 39 description: |
40 Available operating mode 40 Available operating mode
41 1: Auto PFM/PWM 41 1: Auto PFM/PWM
42 2: Force PWM 42 2: Force PWM
43 items: 43 items:
44 enum: [1, 2] 44 enum: [1, 2]
45 45
46 required: 46 required:
47 - compatible 47 - compatible
48 - reg 48 - reg
49 49
50 unevaluatedProperties: false 50 unevaluatedProperties: false
51 51
52 examples: 52 examples:
53 - | 53 - |
54 i2c { 54 i2c {
55 #address-cells = <1>; 55 #address-cells = <1>;
56 #size-cells = <0>; 56 #size-cells = <0>;
57 57
58 regulator@75 { 58 regulator@75 {
59 compatible = "richtek,rt4803"; 59 compatible = "richtek,rt4803";
60 reg = <0x75>; 60 reg = <0x75>;
61 richtek,vsel-active-high; 61 richtek,vsel-active-high;
62 regulator-name = "rt4803-regulator"; 62 regulator-name = "rt4803-regulator";
63 regulator-min-microvolt = <2850000>; 63 regulator-min-microvolt = <2850000>;
64 regulator-max-microvolt = <4400000>; 64 regulator-max-microvolt = <4400000>;
65 regulator-allowed-modes = <1 2>; 65 regulator-allowed-modes = <1 2>;
66 regulator-always-on; 66 regulator-always-on;
67 }; 67 };
68 }; 68 };
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