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1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---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 13allOf:14 - $ref: /schemas/i2c/i2c-controller.yaml#15 16properties:17 compatible:18 oneOf:19 - items:20 - enum:21 - renesas,riic-r7s72100 # RZ/A1H22 - renesas,riic-r7s9210 # RZ/A2M23 - renesas,riic-r9a07g043 # RZ/G2UL and RZ/Five24 - renesas,riic-r9a07g044 # RZ/G2{L,LC}25 - renesas,riic-r9a07g054 # RZ/V2L26 - const: renesas,riic-rz # RZ/A or RZ/G2L27 28 - items:29 - const: renesas,riic-r9a08g045 # RZ/G3S30 - const: renesas,riic-r9a09g057 # RZ/V2H(P)31 32 - const: renesas,riic-r9a09g057 # RZ/V2H(P)33 34 reg:35 maxItems: 136 37 interrupts:38 items:39 - description: Transmit End Interrupt40 - description: Receive Data Full Interrupt41 - description: Transmit Data Empty Interrupt42 - description: Stop Condition Detection Interrupt43 - description: Start Condition Detection Interrupt44 - description: NACK Reception Interrupt45 - description: Arbitration-Lost Interrupt46 - description: Timeout Interrupt47 48 interrupt-names:49 items:50 - const: tei51 - const: ri52 - const: ti53 - const: spi54 - const: sti55 - const: naki56 - const: ali57 - const: tmoi58 59 clock-frequency:60 description:61 Desired I2C bus clock frequency in Hz. The absence of this property62 indicates the default frequency 100 kHz.63 64 clocks:65 maxItems: 166 67 power-domains:68 maxItems: 169 70 resets:71 maxItems: 172 73required:74 - compatible75 - reg76 - interrupts77 - interrupt-names78 - clocks79 - clock-frequency80 - power-domains81 - '#address-cells'82 - '#size-cells'83 84if:85 properties:86 compatible:87 contains:88 enum:89 - renesas,riic-r9a07g04390 - renesas,riic-r9a07g04491 - renesas,riic-r9a07g05492then:93 required:94 - resets95 96unevaluatedProperties: false97 98examples:99 - |100 #include <dt-bindings/clock/r7s72100-clock.h>101 #include <dt-bindings/interrupt-controller/arm-gic.h>102 103 i2c0: i2c@fcfee000 {104 compatible = "renesas,riic-r7s72100", "renesas,riic-rz";105 reg = <0xfcfee000 0x44>;106 interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>,107 <GIC_SPI 158 IRQ_TYPE_EDGE_RISING>,108 <GIC_SPI 159 IRQ_TYPE_EDGE_RISING>,109 <GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>,110 <GIC_SPI 161 IRQ_TYPE_LEVEL_HIGH>,111 <GIC_SPI 162 IRQ_TYPE_LEVEL_HIGH>,112 <GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>,113 <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;114 interrupt-names = "tei", "ri", "ti", "spi", "sti", "naki", "ali",115 "tmoi";116 clocks = <&mstp9_clks R7S72100_CLK_I2C0>;117 clock-frequency = <100000>;118 power-domains = <&cpg_clocks>;119 #address-cells = <1>;120 #size-cells = <0>;121 };122