1 # SPDX-License-Identifier: (GPL-2.0-only OR BS
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/pinctrl/ren
5 $schema: http://devicetree.org/meta-schemas/co
6
7 title: Renesas RZ/N1 Pin Controller
8
9 maintainers:
10 - Fabrizio Castro <fabrizio.castro.jz@renesas
11 - Geert Uytterhoeven <geert+renesas@glider.be
12
13 properties:
14 compatible:
15 items:
16 - enum:
17 - renesas,r9a06g032-pinctrl # RZ/N1D
18 - renesas,r9a06g033-pinctrl # RZ/N1S
19 - const: renesas,rzn1-pinctrl # Generi
20
21 reg:
22 items:
23 - description: GPIO Multiplexing Level1
24 - description: GPIO Multiplexing Level2
25
26 clocks:
27 maxItems: 1
28
29 clock-names:
30 const: bus
31 description:
32 The bus clock, sometimes described as pc
33
34 allOf:
35 - $ref: pinctrl.yaml#
36
37 required:
38 - compatible
39 - reg
40 - clocks
41 - clock-names
42
43 additionalProperties:
44 anyOf:
45 - type: object
46 allOf:
47 - $ref: pincfg-node.yaml#
48 - $ref: pinmux-node.yaml#
49
50 description:
51 A pin multiplexing sub-node describes
52 single) pin in some desired alternate
53 A single sub-node may define several p
54
55 properties:
56 pinmux:
57 description: |
58 Integer array representing pin num
59 configuration.
60 When a pin has to be configured in
61 this property to identify the pin
62 its alternate function configurati
63 When multiple pins are required to
64 same alternate function they shall
65 same argument list of a single "pi
66 Integers values in the "pinmux" ar
67 (PIN | MUX_FUNC << 8)
68 where PIN directly corresponds to
69 MUX_FUNC is one of the alternate f
70 <include/dt-bindings/pinctrl/rzn1-
71 These identifiers collapse the IO
72 and Level 2 numbers that are detai
73 manual into a single number. The i
74 offset by 10. Additional identifi
75 MDIO source peripheral.
76
77 bias-disable: true
78 bias-pull-up:
79 description: Pull up the pin with 50
80 bias-pull-down:
81 description: Pull down the pin with
82 bias-high-impedance: true
83 drive-strength:
84 enum: [ 4, 6, 8, 12 ]
85
86 required:
87 - pinmux
88
89 additionalProperties:
90 $ref: "#/additionalProperties/anyOf/0"
91
92 - type: object
93 additionalProperties:
94 $ref: "#/additionalProperties/anyOf/0"
95
96 examples:
97 - |
98 #include <dt-bindings/clock/r9a06g032-sysc
99 #include <dt-bindings/pinctrl/rzn1-pinctrl
100 pinctrl: pinctrl@40067000 {
101 compatible = "renesas,r9a06g032-pi
102 reg = <0x40067000 0x1000>, <0x5100
103 clocks = <&sysctrl R9A06G032_HCLK_
104 clock-names = "bus";
105
106 /*
107 * A serial communication interfac
108 * input pin.
109 */
110 pins_uart0: pins_uart0 {
111 pinmux = <
112 RZN1_PINMUX(103, R
113 RZN1_PINMUX(104, R
114 >;
115 };
116
117 /*
118 * Set the pull-up on the RXD pin
119 */
120 pins_uart0_alt: pins_uart0_alt {
121 pinmux = <RZN1_PINMUX(103,
122
123 pins_uart6_rx {
124 pinmux = <RZN1_PIN
125 bias-pull-up;
126 };
127 };
128 };
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