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1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
2 | %YAML 1.2 | |
3 | --- | |
4 | $id: http://devicetree.org/schemas/i2c/renesas,riic.yaml# | |
5 | $schema: http://devicetree.org/meta-schemas/core.yaml# | |
6 | ||
a431a091 | 7 | title: Renesas RZ/A and RZ/G2L I2C Bus Interface (RIIC) |
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8 | |
9 | maintainers: | |
10 | - Chris Brandt <chris.brandt@renesas.com> | |
11 | - Wolfram Sang <wsa+renesas@sang-engineering.com> | |
12 | ||
13 | allOf: | |
14 | - $ref: /schemas/i2c/i2c-controller.yaml# | |
15 | ||
16 | properties: | |
17 | compatible: | |
18 | items: | |
19 | - enum: | |
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20 | - renesas,riic-r7s72100 # RZ/A1H |
21 | - renesas,riic-r7s9210 # RZ/A2M | |
db92a6eb | 22 | - renesas,riic-r9a07g043 # RZ/G2UL |
a431a091 | 23 | - renesas,riic-r9a07g044 # RZ/G2{L,LC} |
eb1e49e0 | 24 | - renesas,riic-r9a07g054 # RZ/V2L |
a431a091 | 25 | - const: renesas,riic-rz # RZ/A or RZ/G2L |
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26 | |
27 | reg: | |
28 | maxItems: 1 | |
29 | ||
30 | interrupts: | |
31 | items: | |
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32 | - description: Transmit End Interrupt |
33 | - description: Receive Data Full Interrupt | |
34 | - description: Transmit Data Empty Interrupt | |
35 | - description: Stop Condition Detection Interrupt | |
36 | - description: Start Condition Detection Interrupt | |
37 | - description: NACK Reception Interrupt | |
38 | - description: Arbitration-Lost Interrupt | |
39 | - description: Timeout Interrupt | |
40 | ||
41 | interrupt-names: | |
42 | items: | |
43 | - const: tei | |
44 | - const: ri | |
45 | - const: ti | |
46 | - const: spi | |
47 | - const: sti | |
48 | - const: naki | |
49 | - const: ali | |
50 | - const: tmoi | |
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51 | |
52 | clock-frequency: | |
53 | description: | |
54 | Desired I2C bus clock frequency in Hz. The absence of this property | |
55 | indicates the default frequency 100 kHz. | |
56 | ||
57 | clocks: | |
58 | maxItems: 1 | |
59 | ||
60 | power-domains: | |
61 | maxItems: 1 | |
62 | ||
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63 | resets: |
64 | maxItems: 1 | |
65 | ||
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66 | required: |
67 | - compatible | |
68 | - reg | |
69 | - interrupts | |
13bf92e6 | 70 | - interrupt-names |
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71 | - clocks |
72 | - clock-frequency | |
73 | - power-domains | |
74 | - '#address-cells' | |
75 | - '#size-cells' | |
76 | ||
a431a091 BD |
77 | if: |
78 | properties: | |
79 | compatible: | |
80 | contains: | |
81 | enum: | |
db92a6eb | 82 | - renesas,riic-r9a07g043 |
a431a091 | 83 | - renesas,riic-r9a07g044 |
eb1e49e0 | 84 | - renesas,riic-r9a07g054 |
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85 | then: |
86 | required: | |
87 | - resets | |
88 | ||
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89 | unevaluatedProperties: false |
90 | ||
91 | examples: | |
92 | - | | |
93 | #include <dt-bindings/clock/r7s72100-clock.h> | |
94 | #include <dt-bindings/interrupt-controller/arm-gic.h> | |
95 | ||
96 | i2c0: i2c@fcfee000 { | |
97 | compatible = "renesas,riic-r7s72100", "renesas,riic-rz"; | |
98 | reg = <0xfcfee000 0x44>; | |
99 | interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>, | |
100 | <GIC_SPI 158 IRQ_TYPE_EDGE_RISING>, | |
101 | <GIC_SPI 159 IRQ_TYPE_EDGE_RISING>, | |
102 | <GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>, | |
103 | <GIC_SPI 161 IRQ_TYPE_LEVEL_HIGH>, | |
104 | <GIC_SPI 162 IRQ_TYPE_LEVEL_HIGH>, | |
105 | <GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>, | |
106 | <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>; | |
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107 | interrupt-names = "tei", "ri", "ti", "spi", "sti", "naki", "ali", |
108 | "tmoi"; | |
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109 | clocks = <&mstp9_clks R7S72100_CLK_I2C0>; |
110 | clock-frequency = <100000>; | |
111 | power-domains = <&cpg_clocks>; | |
112 | #address-cells = <1>; | |
113 | #size-cells = <0>; | |
114 | }; |