xref: /linux/Documentation/devicetree/bindings/mfd/allwinner,sun8i-a23-prcm.yaml (revision e7d759f31ca295d589f7420719c311870bb3166f) 
1# SPDX-License-Identifier: GPL-2.0+
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/mfd/allwinner,sun8i-a23-prcm.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Allwinner A23 PRCM
8
9maintainers:
10  - Chen-Yu Tsai <wens@csie.org>
11  - Maxime Ripard <mripard@kernel.org>
12
13deprecated: true
14
15properties:
16  compatible:
17    const: allwinner,sun8i-a23-prcm
18
19  reg:
20    maxItems: 1
21
22patternProperties:
23  "^.*(clk|rst|codec).*$":
24    type: object
25    unevaluatedProperties: false
26
27    properties:
28      compatible:
29        enum:
30          - fixed-factor-clock
31          - allwinner,sun8i-a23-apb0-clk
32          - allwinner,sun8i-a23-apb0-gates-clk
33          - allwinner,sun6i-a31-clock-reset
34          - allwinner,sun8i-a23-codec-analog
35
36    required:
37      - compatible
38
39    allOf:
40      - if:
41          properties:
42            compatible:
43              contains:
44                const: fixed-factor-clock
45
46        then:
47          $ref: /schemas/clock/fixed-factor-clock.yaml#
48
49      - if:
50          properties:
51            compatible:
52              contains:
53                const: allwinner,sun8i-a23-apb0-clk
54
55        then:
56          properties:
57            "#clock-cells":
58              const: 0
59
60            clocks:
61              maxItems: 1
62
63            clock-output-names:
64              maxItems: 1
65
66          required:
67            - "#clock-cells"
68            - clocks
69            - clock-output-names
70
71      - if:
72          properties:
73            compatible:
74              contains:
75                const: allwinner,sun8i-a23-apb0-gates-clk
76
77        then:
78          properties:
79            "#clock-cells":
80              const: 1
81              description: >
82                This additional argument passed to that clock is the
83                offset of the bit controlling this particular gate in
84                the register.
85
86            clocks:
87              maxItems: 1
88
89            clock-output-names:
90              minItems: 1
91              maxItems: 32
92
93          required:
94            - "#clock-cells"
95            - clocks
96            - clock-output-names
97
98      - if:
99          properties:
100            compatible:
101              contains:
102                const: allwinner,sun6i-a31-clock-reset
103
104        then:
105          properties:
106            "#reset-cells":
107              const: 1
108
109          required:
110            - "#reset-cells"
111
112required:
113  - compatible
114  - reg
115
116additionalProperties: false
117
118examples:
119  - |
120    prcm@1f01400 {
121        compatible = "allwinner,sun8i-a23-prcm";
122        reg = <0x01f01400 0x200>;
123
124        ar100: ar100_clk {
125            compatible = "fixed-factor-clock";
126            #clock-cells = <0>;
127            clock-div = <1>;
128            clock-mult = <1>;
129            clocks = <&osc24M>;
130            clock-output-names = "ar100";
131        };
132
133        ahb0: ahb0_clk {
134            compatible = "fixed-factor-clock";
135            #clock-cells = <0>;
136            clock-div = <1>;
137            clock-mult = <1>;
138            clocks = <&ar100>;
139            clock-output-names = "ahb0";
140        };
141
142        apb0: apb0_clk {
143            compatible = "allwinner,sun8i-a23-apb0-clk";
144            #clock-cells = <0>;
145            clocks = <&ahb0>;
146            clock-output-names = "apb0";
147        };
148
149        apb0_gates: apb0_gates_clk {
150            compatible = "allwinner,sun8i-a23-apb0-gates-clk";
151            #clock-cells = <1>;
152            clocks = <&apb0>;
153            clock-output-names = "apb0_pio", "apb0_timer",
154                                 "apb0_rsb", "apb0_uart",
155                                 "apb0_i2c";
156        };
157
158        apb0_rst: apb0_rst {
159            compatible = "allwinner,sun6i-a31-clock-reset";
160            #reset-cells = <1>;
161        };
162
163        codec_analog: codec-analog {
164            compatible = "allwinner,sun8i-a23-codec-analog";
165        };
166    };
167
168...
169