130 lines · yaml
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/i2c/i2c-mt65xx.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: MediaTek I2C controller8 9description:10 This driver interfaces with the native I2C controller present in11 various MediaTek SoCs.12 13allOf:14 - $ref: /schemas/i2c/i2c-controller.yaml#15 16maintainers:17 - Qii Wang <qii.wang@mediatek.com>18 19properties:20 compatible:21 oneOf:22 - const: mediatek,mt2712-i2c23 - const: mediatek,mt6577-i2c24 - const: mediatek,mt6589-i2c25 - const: mediatek,mt7622-i2c26 - const: mediatek,mt7981-i2c27 - const: mediatek,mt7986-i2c28 - const: mediatek,mt8168-i2c29 - const: mediatek,mt8173-i2c30 - const: mediatek,mt8183-i2c31 - const: mediatek,mt8186-i2c32 - const: mediatek,mt8188-i2c33 - const: mediatek,mt8192-i2c34 - items:35 - enum:36 - mediatek,mt7629-i2c37 - mediatek,mt8516-i2c38 - const: mediatek,mt2712-i2c39 - items:40 - enum:41 - mediatek,mt2701-i2c42 - mediatek,mt6797-i2c43 - mediatek,mt7623-i2c44 - const: mediatek,mt6577-i2c45 - items:46 - enum:47 - mediatek,mt8365-i2c48 - const: mediatek,mt8168-i2c49 - items:50 - enum:51 - mediatek,mt6795-i2c52 - const: mediatek,mt8173-i2c53 - items:54 - enum:55 - mediatek,mt8195-i2c56 - const: mediatek,mt8192-i2c57 58 reg:59 items:60 - description: Physical base address61 - description: DMA base address62 63 interrupts:64 maxItems: 165 66 clocks:67 minItems: 268 items:69 - description: Main clock for I2C bus70 - description: Clock for I2C via DMA71 - description: Bus arbitrator clock72 - description: Clock for I2C from PMIC73 74 clock-names:75 minItems: 276 items:77 - const: main78 - const: dma79 - const: arb80 - const: pmic81 82 clock-div:83 $ref: /schemas/types.yaml#/definitions/uint3284 description: Frequency divider of clock source in I2C module85 86 clock-frequency:87 default: 10000088 description:89 SCL frequency to use (in Hz). If omitted, 100kHz is used.90 91 mediatek,have-pmic:92 description: Platform controls I2C from PMIC side93 type: boolean94 95 mediatek,use-push-pull:96 description: Use push-pull mode I/O config97 type: boolean98 99 vbus-supply:100 description: Phandle to the regulator providing power to SCL/SDA101 102required:103 - compatible104 - reg105 - clocks106 - clock-names107 - clock-div108 - interrupts109 110unevaluatedProperties: false111 112examples:113 - |114 #include <dt-bindings/interrupt-controller/arm-gic.h>115 #include <dt-bindings/interrupt-controller/irq.h>116 117 i2c0: i2c@1100d000 {118 compatible = "mediatek,mt6577-i2c";119 reg = <0x1100d000 0x70>, <0x11000300 0x80>;120 interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_LOW>;121 clocks = <&i2c0_ck>, <&ap_dma_ck>;122 clock-names = "main", "dma";123 clock-div = <16>;124 clock-frequency = <400000>;125 mediatek,have-pmic;126 127 #address-cells = <1>;128 #size-cells = <0>;129 };130