1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/pinctrl/allwinner,sun4i-a10-pinctrl.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Allwinner A10 Pin Controller Device Tree Bindings
8
9maintainers:
10  - Chen-Yu Tsai <wens@csie.org>
11  - Maxime Ripard <mripard@kernel.org>
12
13properties:
14  "#gpio-cells":
15    const: 3
16    description:
17      GPIO consumers must use three arguments, first the number of the
18      bank, then the pin number inside that bank, and finally the GPIO
19      flags.
20
21  "#interrupt-cells":
22    const: 3
23    description:
24      Interrupts consumers must use three arguments, first the number
25      of the bank, then the pin number inside that bank, and finally
26      the interrupts flags.
27
28  compatible:
29    enum:
30      - allwinner,sun4i-a10-pinctrl
31      - allwinner,sun5i-a10s-pinctrl
32      - allwinner,sun5i-a13-pinctrl
33      - allwinner,sun6i-a31-pinctrl
34      - allwinner,sun6i-a31-r-pinctrl
35      - allwinner,sun6i-a31s-pinctrl
36      - allwinner,sun7i-a20-pinctrl
37      - allwinner,sun8i-a23-pinctrl
38      - allwinner,sun8i-a23-r-pinctrl
39      - allwinner,sun8i-a33-pinctrl
40      - allwinner,sun8i-a83t-pinctrl
41      - allwinner,sun8i-a83t-r-pinctrl
42      - allwinner,sun8i-h3-pinctrl
43      - allwinner,sun8i-h3-r-pinctrl
44      - allwinner,sun8i-r40-pinctrl
45      - allwinner,sun8i-v3-pinctrl
46      - allwinner,sun8i-v3s-pinctrl
47      - allwinner,sun9i-a80-pinctrl
48      - allwinner,sun9i-a80-r-pinctrl
49      - allwinner,sun50i-a64-pinctrl
50      - allwinner,sun50i-a64-r-pinctrl
51      - allwinner,sun50i-h5-pinctrl
52      - allwinner,sun50i-h6-pinctrl
53      - allwinner,sun50i-h6-r-pinctrl
54      - allwinner,suniv-f1c100s-pinctrl
55      - nextthing,gr8-pinctrl
56
57  reg:
58    maxItems: 1
59
60  interrupts:
61    minItems: 1
62    maxItems: 5
63    description:
64      One interrupt per external interrupt bank supported on the
65      controller, sorted by bank number ascending order.
66
67  clocks:
68    items:
69      - description: Bus Clock
70      - description: High Frequency Oscillator
71      - description: Low Frequency Oscillator
72
73  clock-names:
74    items:
75      - const: apb
76      - const: hosc
77      - const: losc
78
79  resets:
80    maxItems: 1
81
82  gpio-controller: true
83  interrupt-controller: true
84  gpio-line-names: true
85
86  input-debounce:
87    allOf:
88      - $ref: /schemas/types.yaml#/definitions/uint32-array
89      - minItems: 1
90        maxItems: 5
91    description:
92      Debouncing periods in microseconds, one period per interrupt
93      bank found in the controller
94
95patternProperties:
96  # It's pretty scary, but the basic idea is that:
97  #   - One node name can start with either s- or r- for PRCM nodes,
98  #   - Then, the name itself can be any repetition of <string>- (to
99  #     accomodate with nodes like uart4-rts-cts-pins), where each
100  #     string can be either starting with 'p' but in a string longer
101  #     than 3, or something that doesn't start with 'p',
102  #   - Then, the bank name is optional and will be between pa and pg,
103  #     pl or pm. Some pins groups that have several options will have
104  #     the pin numbers then,
105  #   - Finally, the name will end with either -pin or pins.
106
107  "^([rs]-)?(([a-z0-9]{3,}|[a-oq-z][a-z0-9]*?)?-)+?(p[a-ilm][0-9]*?-)??pins?$":
108    type: object
109
110    properties:
111      pins: true
112      function: true
113      bias-disable: true
114      bias-pull-up: true
115      bias-pull-down: true
116
117      drive-strength:
118        allOf:
119          - $ref: /schemas/types.yaml#/definitions/uint32
120          - enum: [ 10, 20, 30, 40 ]
121
122    required:
123      - pins
124      - function
125
126    additionalProperties: false
127
128  "^vcc-p[a-hlm]-supply$":
129    description:
130      Power supplies for pin banks.
131
132required:
133  - "#gpio-cells"
134  - "#interrupt-cells"
135  - compatible
136  - reg
137  - interrupts
138  - clocks
139  - clock-names
140  - gpio-controller
141  - interrupt-controller
142
143allOf:
144  # FIXME: We should have the pin bank supplies here, but not a lot of
145  # boards are defining it at the moment so it would generate a lot of
146  # warnings.
147
148  - if:
149      properties:
150        compatible:
151          enum:
152            - allwinner,sun9i-a80-pinctrl
153
154    then:
155      properties:
156        interrupts:
157          minItems: 5
158          maxItems: 5
159
160    else:
161      if:
162        properties:
163          compatible:
164            enum:
165              - allwinner,sun6i-a31-pinctrl
166              - allwinner,sun6i-a31s-pinctrl
167              - allwinner,sun50i-h6-pinctrl
168
169      then:
170        properties:
171          interrupts:
172            minItems: 4
173            maxItems: 4
174
175      else:
176        if:
177          properties:
178            compatible:
179              enum:
180                - allwinner,sun8i-a23-pinctrl
181                - allwinner,sun8i-a83t-pinctrl
182                - allwinner,sun50i-a64-pinctrl
183                - allwinner,sun50i-h5-pinctrl
184                - allwinner,suniv-f1c100s-pinctrl
185
186        then:
187          properties:
188            interrupts:
189              minItems: 3
190              maxItems: 3
191
192        else:
193          if:
194            properties:
195              compatible:
196                enum:
197                  - allwinner,sun6i-a31-r-pinctrl
198                  - allwinner,sun8i-a33-pinctrl
199                  - allwinner,sun8i-h3-pinctrl
200                  - allwinner,sun8i-v3-pinctrl
201                  - allwinner,sun8i-v3s-pinctrl
202                  - allwinner,sun9i-a80-r-pinctrl
203                  - allwinner,sun50i-h6-r-pinctrl
204
205          then:
206            properties:
207              interrupts:
208                minItems: 2
209                maxItems: 2
210
211          else:
212            properties:
213              interrupts:
214                minItems: 1
215                maxItems: 1
216
217additionalProperties: false
218
219examples:
220  - |
221    #include <dt-bindings/clock/sun5i-ccu.h>
222
223    pio: pinctrl@1c20800 {
224        compatible = "allwinner,sun5i-a13-pinctrl";
225        reg = <0x01c20800 0x400>;
226        interrupts = <28>;
227        clocks = <&ccu CLK_APB0_PIO>, <&osc24M>, <&osc32k>;
228        clock-names = "apb", "hosc", "losc";
229        gpio-controller;
230        interrupt-controller;
231        #interrupt-cells = <3>;
232        #gpio-cells = <3>;
233
234        uart1_pe_pins: uart1-pe-pins {
235            pins = "PE10", "PE11";
236            function = "uart1";
237        };
238
239        uart1_pg_pins: uart1-pg-pins {
240            pins = "PG3", "PG4";
241            function = "uart1";
242        };
243    };
244