xref: /linux/Documentation/devicetree/bindings/pinctrl/renesas,rzg2l-pinctrl.yaml (revision fd7d598270724cc787982ea48bbe17ad383a8b7f) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/pinctrl/renesas,rzg2l-pinctrl.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Renesas RZ/{G2L,V2L} combined Pin and GPIO controller
8
9maintainers:
10  - Geert Uytterhoeven <geert+renesas@glider.be>
11  - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
12
13description:
14  The Renesas SoCs of the RZ/{G2L,V2L} alike series feature a combined Pin and
15  GPIO controller.
16  Pin multiplexing and GPIO configuration is performed on a per-pin basis.
17  Each port features up to 8 pins, each of them configurable for GPIO function
18  (port mode) or in alternate function mode.
19  Up to 8 different alternate function modes exist for each single pin.
20
21properties:
22  compatible:
23    oneOf:
24      - items:
25          - enum:
26              - renesas,r9a07g043-pinctrl # RZ/G2UL{Type-1,Type-2} and RZ/Five
27              - renesas,r9a07g044-pinctrl # RZ/G2{L,LC}
28
29      - items:
30          - enum:
31              - renesas,r9a07g054-pinctrl     # RZ/V2L
32          - const: renesas,r9a07g044-pinctrl  # RZ/G2{L,LC} fallback for RZ/V2L
33
34  reg:
35    maxItems: 1
36
37  gpio-controller: true
38
39  '#gpio-cells':
40    const: 2
41    description:
42      The first cell contains the global GPIO port index, constructed using the
43      RZG2L_GPIO() helper macro in <dt-bindings/pinctrl/rzg2l-pinctrl.h> and the
44      second cell represents consumer flag as mentioned in ../gpio/gpio.txt
45      E.g. "RZG2L_GPIO(39, 1)" for P39_1.
46
47  gpio-ranges:
48    maxItems: 1
49
50  interrupt-controller: true
51
52  '#interrupt-cells':
53    const: 2
54    description:
55      The first cell contains the global GPIO port index, constructed using the
56      RZG2L_GPIO() helper macro in <dt-bindings/pinctrl/rzg2l-pinctrl.h> and the
57      second cell is used to specify the flag.
58      E.g. "interrupts = <RZG2L_GPIO(43, 0) IRQ_TYPE_EDGE_FALLING>;" if P43_0 is
59      being used as an interrupt.
60
61  clocks:
62    maxItems: 1
63
64  power-domains:
65    maxItems: 1
66
67  resets:
68    items:
69      - description: GPIO_RSTN signal
70      - description: GPIO_PORT_RESETN signal
71      - description: GPIO_SPARE_RESETN signal
72
73additionalProperties:
74  anyOf:
75    - type: object
76      allOf:
77        - $ref: pincfg-node.yaml#
78        - $ref: pinmux-node.yaml#
79
80      description:
81        Pin controller client devices use pin configuration subnodes (children
82        and grandchildren) for desired pin configuration.
83        Client device subnodes use below standard properties.
84
85      properties:
86        pinmux:
87          description:
88            Values are constructed from GPIO port number, pin number, and
89            alternate function configuration number using the RZG2L_PORT_PINMUX()
90            helper macro in <dt-bindings/pinctrl/rzg2l-pinctrl.h>.
91        pins: true
92        drive-strength:
93          enum: [ 2, 4, 8, 12 ]
94        output-impedance-ohms:
95          enum: [ 33, 50, 66, 100 ]
96        power-source:
97          description: I/O voltage in millivolt.
98          enum: [ 1800, 2500, 3300 ]
99        slew-rate: true
100        gpio-hog: true
101        gpios: true
102        input-enable: true
103        output-high: true
104        output-low: true
105        line-name: true
106
107    - type: object
108      additionalProperties:
109        $ref: "#/additionalProperties/anyOf/0"
110
111allOf:
112  - $ref: pinctrl.yaml#
113
114required:
115  - compatible
116  - reg
117  - gpio-controller
118  - '#gpio-cells'
119  - gpio-ranges
120  - interrupt-controller
121  - '#interrupt-cells'
122  - clocks
123  - power-domains
124  - resets
125
126examples:
127  - |
128    #include <dt-bindings/pinctrl/rzg2l-pinctrl.h>
129    #include <dt-bindings/clock/r9a07g044-cpg.h>
130
131    pinctrl: pinctrl@11030000 {
132            compatible = "renesas,r9a07g044-pinctrl";
133            reg = <0x11030000 0x10000>;
134
135            gpio-controller;
136            #gpio-cells = <2>;
137            gpio-ranges = <&pinctrl 0 0 392>;
138            interrupt-controller;
139            #interrupt-cells = <2>;
140            clocks = <&cpg CPG_MOD R9A07G044_GPIO_HCLK>;
141            resets = <&cpg R9A07G044_GPIO_RSTN>,
142                     <&cpg R9A07G044_GPIO_PORT_RESETN>,
143                     <&cpg R9A07G044_GPIO_SPARE_RESETN>;
144            power-domains = <&cpg>;
145
146            scif0_pins: serial0 {
147                    pinmux = <RZG2L_PORT_PINMUX(38, 0, 1)>, /* Tx */
148                             <RZG2L_PORT_PINMUX(38, 1, 1)>; /* Rx */
149            };
150
151            i2c1_pins: i2c1 {
152                    pins = "RIIC1_SDA", "RIIC1_SCL";
153                    input-enable;
154            };
155
156            sd1-pwr-en-hog {
157                    gpio-hog;
158                    gpios = <RZG2L_GPIO(39, 2) 0>;
159                    output-high;
160                    line-name = "sd1_pwr_en";
161            };
162
163            sdhi1_pins: sd1 {
164                    sd1_mux {
165                            pinmux = <RZG2L_PORT_PINMUX(19, 0, 1)>, /* CD */
166                                     <RZG2L_PORT_PINMUX(19, 1, 1)>; /* WP */
167                            power-source  = <3300>;
168                    };
169
170                    sd1_data {
171                            pins = "SD1_DATA0", "SD1_DATA1", "SD1_DATA2", "SD1_DATA3";
172                            power-source  = <3300>;
173                    };
174
175                    sd1_ctrl {
176                            pins = "SD1_CLK", "SD1_CMD";
177                            power-source  = <3300>;
178                    };
179            };
180    };
181