1 # SPDX-License-Identifier: GPL-2.0-only OR BSD
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/hwmon/gmt,g
5 $schema: http://devicetree.org/meta-schemas/co
6
7 title: GMT G761/G762/G763 PWM Fan controller
8
9 maintainers:
10 - Christian Marangi <ansuelsmth@gmail.com>
11
12 description: |
13 GMT G761/G762/G763 PWM Fan controller.
14
15 G761 supports an internal-clock hence the cl
16 If not defined, internal-clock will be used.
17 the internal crystal oscillator)
18
19 If an optional property is not set in DT, th
20 unmodified (e.g. bootloader installed value)
21
22 Additional information on operational parame
23 in Documentation/hwmon/g762.rst. A detailed
24 at http://natisbad.org/NAS/refs/GMT_EDS-762_
25
26 properties:
27 compatible:
28 enum:
29 - gmt,g761
30 - gmt,g762
31 - gmt,g763
32
33 reg:
34 maxItems: 1
35
36 clocks:
37 description: a fixed clock providing input
38 pin of the chip.
39 maxItems: 1
40
41 fan_startv:
42 description: Fan startup voltage step
43 $ref: /schemas/types.yaml#/definitions/uin
44 enum: [0, 1, 2, 3]
45
46 pwm_polarity:
47 description: PWM polarity (positive or neg
48 $ref: /schemas/types.yaml#/definitions/uin
49 enum: [0, 1]
50
51 fan_gear_mode:
52 description: FAN gear mode. Configure High
53 $ref: /schemas/types.yaml#/definitions/uin
54 enum: [0, 1, 2]
55
56 required:
57 - compatible
58 - reg
59
60 if:
61 properties:
62 compatible:
63 contains:
64 enum:
65 - gmt,g762
66 - gmt,g763
67 then:
68 required:
69 - clocks
70
71 additionalProperties: false
72
73 examples:
74 - |
75 i2c {
76 #address-cells = <1>;
77 #size-cells = <0>;
78
79 g762@3e {
80 compatible = "gmt,g762";
81 reg = <0x3e>;
82 clocks = <&g762_clk>;
83 fan_gear_mode = <0>;
84 fan_startv = <1>;
85 pwm_polarity = <0>;
86 };
87
88 g761@1e {
89 compatible = "gmt,g761";
90 reg = <0x1e>;
91 fan_gear_mode = <0>;
92 fan_startv = <1>;
93 pwm_polarity = <0>;
94 };
95 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.