1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/pwm/allwinner,sun4i-a10-pwm.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Allwinner A10 PWM Device Tree Bindings
8
9 maintainers:
10 - Chen-Yu Tsai <wens@csie.org>
11 - Maxime Ripard <mripard@kernel.org>
12
13 properties:
14 "#pwm-cells":
15 const: 3
16
17 compatible:
18 oneOf:
19 - const: allwinner,sun4i-a10-pwm
20 - const: allwinner,sun5i-a10s-pwm
21 - const: allwinner,sun5i-a13-pwm
22 - const: allwinner,sun7i-a20-pwm
23 - const: allwinner,sun8i-h3-pwm
24 - items:
25 - const: allwinner,sun8i-a83t-pwm
26 - const: allwinner,sun8i-h3-pwm
27 - items:
28 - const: allwinner,sun8i-v3s-pwm
29 - const: allwinner,sun7i-a20-pwm
30 - items:
31 - const: allwinner,sun50i-a64-pwm
32 - const: allwinner,sun5i-a13-pwm
33 - items:
34 - const: allwinner,sun50i-h5-pwm
35 - const: allwinner,sun5i-a13-pwm
36 - const: allwinner,sun50i-h6-pwm
37
38 reg:
39 maxItems: 1
40
41 clocks:
42 minItems: 1
43 items:
44 - description: Module Clock
45 - description: Bus Clock
46
47 # Even though it only applies to subschemas under the conditionals,
48 # not listing them here will trigger a warning because of the
49 # additionalsProperties set to false.
50 clock-names: true
51
52 resets:
53 maxItems: 1
54
55
56 allOf:
57 - $ref: pwm.yaml#
58
59 - if:
60 properties:
61 compatible:
62 contains:
63 const: allwinner,sun50i-h6-pwm
64
65 then:
66 properties:
67 clocks:
68 maxItems: 2
69
70 clock-names:
71 items:
72 - const: mod
73 - const: bus
74
75 required:
76 - clock-names
77 - resets
78
79 else:
80 properties:
81 clocks:
82 maxItems: 1
83
84 required:
85 - compatible
86 - reg
87 - clocks
88
89 additionalProperties: false
90
91 examples:
92 - |
93 pwm: pwm@1c20e00 {
94 compatible = "allwinner,sun7i-a20-pwm";
95 reg = <0x01c20e00 0xc>;
96 clocks = <&osc24M>;
97 #pwm-cells = <3>;
98 };
99
100 - |
101 #include <dt-bindings/clock/sun50i-h6-ccu.h>
102 #include <dt-bindings/reset/sun50i-h6-ccu.h>
103
104 pwm@300a000 {
105 compatible = "allwinner,sun50i-h6-pwm";
106 reg = <0x0300a000 0x400>;
107 clocks = <&osc24M>, <&ccu CLK_BUS_PWM>;
108 clock-names = "mod", "bus";
109 resets = <&ccu RST_BUS_PWM>;
110 #pwm-cells = <3>;
111 };
112
113 ...
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