# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id:
http://devicetree.org/schemas/i2c/renesas,riic.yaml#
$schema:
http://devicetree.org/meta-schemas/core.yaml#
title: Renesas RZ/A and RZ/G2L I2C Bus Interface (RIIC)
maintainers:
- Chris Brandt <chris.brandt@renesas.com>
- Wolfram Sang <wsa+renesas@sang-engineering.com>
properties:
compatible:
oneOf:
- items:
- enum:
- renesas,riic-r7s72100 # RZ/A1H
- renesas,riic-r7s9210 # RZ/A2M
- renesas,riic-r9a07g043 # RZ/G2UL and RZ/Five
- renesas,riic-r9a07g044 # RZ/G2{L,LC}
- renesas,riic-r9a07g054 # RZ/V2L
- const: renesas,riic-rz # RZ/A or RZ/G2L
- items:
- enum:
- renesas,riic-r9a08g045 # RZ/G3S
- renesas,riic-r9a09g047 # RZ/G3E
- renesas,riic-r9a09g056 # RZ/V2N
- const: renesas,riic-r9a09g057 # RZ/V2H(P)
- enum:
- renesas,riic-r9a09g057 # RZ/V2H(P)
- renesas,riic-r9a09g077 # RZ/T2H
- items:
- const: renesas,riic-r9a09g087 # RZ/N2H
- const: renesas,riic-r9a09g077 # RZ/T2H
reg:
maxItems: 1
interrupts:
oneOf:
- items:
- description: Transmit End Interrupt
- description: Receive Data Full Interrupt
- description: Transmit Data Empty Interrupt
- description: Stop Condition Detection Interrupt
- description: Start Condition Detection Interrupt
- description: NACK Reception Interrupt
- description: Arbitration-Lost Interrupt
- description: Timeout Interrupt
- items:
- description: Transfer Error Or Event Generation
- description: Receive Data Full Interrupt
- description: Transmit Data Empty Interrupt
- description: Transmit End Interrupt
interrupt-names:
oneOf:
- items:
- const: tei
- const: ri
- const: ti
- const: spi
- const: sti
- const: naki
- const: ali
- const: tmoi
- items:
- const: eei
- const: rxi
- const: txi
- const: tei
clock-frequency:
description:
Desired I2C bus clock frequency in Hz. The absence of this property
indicates the default frequency 100 kHz.
clocks:
maxItems: 1
power-domains:
maxItems: 1
resets:
maxItems: 1
required:
- compatible
- reg
- interrupts
- interrupt-names
- clocks
- clock-frequency
- power-domains
- '#address-cells'
- '#size-cells'
allOf:
- $ref: /schemas/i2c/i2c-controller.yaml#
- if:
properties:
compatible:
contains:
const: renesas,riic-r9a09g077
then:
properties:
interrupts:
maxItems: 4
interrupt-names:
maxItems: 4
resets: false
else:
properties:
interrupts:
minItems: 8
interrupt-names:
minItems: 8
- if:
properties:
compatible:
contains:
enum:
- renesas,riic-r9a07g043
- renesas,riic-r9a07g044
- renesas,riic-r9a07g054
- renesas,riic-r9a09g057
then:
required:
- resets
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/clock/r7s72100-clock.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
i2c0: i2c@fcfee000 {
compatible = "renesas,riic-r7s72100", "renesas,riic-rz";
reg = <0xfcfee000 0x44>;
interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 158 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 159 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 161 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 162 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "tei", "ri", "ti", "spi", "sti", "naki", "ali",
"tmoi";
clocks = <&mstp9_clks R7S72100_CLK_I2C0>;
clock-frequency = <100000>;
power-domains = <&cpg_clocks>;
#address-cells = <1>;
#size-cells = <0>;
};
