renesas,riic.yaml

  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
  7title: Renesas RZ/A and RZ/G2L I2C Bus Interface (RIIC)
  8
  9maintainers:
 10  - Chris Brandt <chris.brandt@renesas.com>
 11  - Wolfram Sang <wsa+renesas@sang-engineering.com>
 12
 13properties:
 14  compatible:
 15    oneOf:
 16      - items:
 17          - enum:
 18              - renesas,riic-r7s72100   # RZ/A1H
 19              - renesas,riic-r7s9210    # RZ/A2M
 20              - renesas,riic-r9a07g043  # RZ/G2UL and RZ/Five
 21              - renesas,riic-r9a07g044  # RZ/G2{L,LC}
 22              - renesas,riic-r9a07g054  # RZ/V2L
 23          - const: renesas,riic-rz      # RZ/A or RZ/G2L
 24
 25      - items:
 26          - enum:
 27              - renesas,riic-r9a08g045   # RZ/G3S
 28              - renesas,riic-r9a09g047   # RZ/G3E
 29              - renesas,riic-r9a09g056   # RZ/V2N
 30          - const: renesas,riic-r9a09g057   # RZ/V2H(P)
 31
 32      - enum:
 33          - renesas,riic-r9a09g057   # RZ/V2H(P)
 34          - renesas,riic-r9a09g077   # RZ/T2H
 35
 36      - items:
 37          - const: renesas,riic-r9a09g087  # RZ/N2H
 38          - const: renesas,riic-r9a09g077  # RZ/T2H
 39
 40  reg:
 41    maxItems: 1
 42
 43  interrupts:
 44    oneOf:
 45      - items:
 46          - description: Transmit End Interrupt
 47          - description: Receive Data Full Interrupt
 48          - description: Transmit Data Empty Interrupt
 49          - description: Stop Condition Detection Interrupt
 50          - description: Start Condition Detection Interrupt
 51          - description: NACK Reception Interrupt
 52          - description: Arbitration-Lost Interrupt
 53          - description: Timeout Interrupt
 54      - items:
 55          - description: Transfer Error Or Event Generation
 56          - description: Receive Data Full Interrupt
 57          - description: Transmit Data Empty Interrupt
 58          - description: Transmit End Interrupt
 59
 60  interrupt-names:
 61    oneOf:
 62      - items:
 63          - const: tei
 64          - const: ri
 65          - const: ti
 66          - const: spi
 67          - const: sti
 68          - const: naki
 69          - const: ali
 70          - const: tmoi
 71      - items:
 72          - const: eei
 73          - const: rxi
 74          - const: txi
 75          - const: tei
 76
 77  clock-frequency:
 78    description:
 79      Desired I2C bus clock frequency in Hz. The absence of this property
 80      indicates the default frequency 100 kHz.
 81
 82  clocks:
 83    maxItems: 1
 84
 85  power-domains:
 86    maxItems: 1
 87
 88  resets:
 89    maxItems: 1
 90
 91required:
 92  - compatible
 93  - reg
 94  - interrupts
 95  - interrupt-names
 96  - clocks
 97  - clock-frequency
 98  - power-domains
 99  - '#address-cells'
100  - '#size-cells'
101
102allOf:
103  - $ref: /schemas/i2c/i2c-controller.yaml#
104
105  - if:
106      properties:
107        compatible:
108          contains:
109            const: renesas,riic-r9a09g077
110    then:
111      properties:
112        interrupts:
113          maxItems: 4
114        interrupt-names:
115          maxItems: 4
116        resets: false
117    else:
118      properties:
119        interrupts:
120          minItems: 8
121        interrupt-names:
122          minItems: 8
123
124  - if:
125      properties:
126        compatible:
127          contains:
128            enum:
129              - renesas,riic-r9a07g043
130              - renesas,riic-r9a07g044
131              - renesas,riic-r9a07g054
132              - renesas,riic-r9a09g057
133    then:
134      required:
135        - resets
136
137unevaluatedProperties: false
138
139examples:
140  - |
141    #include <dt-bindings/clock/r7s72100-clock.h>
142    #include <dt-bindings/interrupt-controller/arm-gic.h>
143
144    i2c0: i2c@fcfee000 {
145        compatible = "renesas,riic-r7s72100", "renesas,riic-rz";
146        reg = <0xfcfee000 0x44>;
147        interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>,
148                     <GIC_SPI 158 IRQ_TYPE_EDGE_RISING>,
149                     <GIC_SPI 159 IRQ_TYPE_EDGE_RISING>,
150                     <GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>,
151                     <GIC_SPI 161 IRQ_TYPE_LEVEL_HIGH>,
152                     <GIC_SPI 162 IRQ_TYPE_LEVEL_HIGH>,
153                     <GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>,
154                     <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
155        interrupt-names = "tei", "ri", "ti", "spi", "sti", "naki", "ali",
156                          "tmoi";
157        clocks = <&mstp9_clks R7S72100_CLK_I2C0>;
158        clock-frequency = <100000>;
159        power-domains = <&cpg_clocks>;
160        #address-cells = <1>;
161        #size-cells = <0>;
162    };