| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/i2c/i2c-mt65xx.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: MediaTek I2C controller |
| |
| description: |
| This driver interfaces with the native I2C controller present in |
| various MediaTek SoCs. |
| |
| allOf: |
| - $ref: /schemas/i2c/i2c-controller.yaml# |
| |
| maintainers: |
| - Qii Wang <qii.wang@mediatek.com> |
| |
| properties: |
| compatible: |
| oneOf: |
| - const: mediatek,mt2712-i2c |
| - const: mediatek,mt6577-i2c |
| - const: mediatek,mt6589-i2c |
| - const: mediatek,mt7622-i2c |
| - const: mediatek,mt8168-i2c |
| - const: mediatek,mt8173-i2c |
| - const: mediatek,mt8183-i2c |
| - const: mediatek,mt8186-i2c |
| - const: mediatek,mt8192-i2c |
| - items: |
| - enum: |
| - mediatek,mt7629-i2c |
| - mediatek,mt8516-i2c |
| - const: mediatek,mt2712-i2c |
| - items: |
| - enum: |
| - mediatek,mt2701-i2c |
| - mediatek,mt6797-i2c |
| - mediatek,mt7623-i2c |
| - const: mediatek,mt6577-i2c |
| - items: |
| - enum: |
| - mediatek,mt8195-i2c |
| - const: mediatek,mt8192-i2c |
| |
| reg: |
| items: |
| - description: Physical base address |
| - description: DMA base address |
| |
| interrupts: |
| maxItems: 1 |
| |
| clocks: |
| minItems: 2 |
| items: |
| - description: Main clock for I2C bus |
| - description: Clock for I2C via DMA |
| - description: Bus arbitrator clock |
| - description: Clock for I2C from PMIC |
| |
| clock-names: |
| minItems: 2 |
| items: |
| - const: main |
| - const: dma |
| - const: arb |
| - const: pmic |
| |
| clock-div: |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| description: Frequency divider of clock source in I2C module |
| |
| clock-frequency: |
| default: 100000 |
| description: |
| SCL frequency to use (in Hz). If omitted, 100kHz is used. |
| |
| mediatek,have-pmic: |
| description: Platform controls I2C from PMIC side |
| type: boolean |
| |
| mediatek,use-push-pull: |
| description: Use push-pull mode I/O config |
| type: boolean |
| |
| vbus-supply: |
| description: Phandle to the regulator providing power to SCL/SDA |
| |
| required: |
| - compatible |
| - reg |
| - clocks |
| - clock-names |
| - clock-div |
| - interrupts |
| |
| unevaluatedProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/interrupt-controller/arm-gic.h> |
| #include <dt-bindings/interrupt-controller/irq.h> |
| |
| i2c0: i2c@1100d000 { |
| compatible = "mediatek,mt6577-i2c"; |
| reg = <0x1100d000 0x70>, <0x11000300 0x80>; |
| interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_LOW>; |
| clocks = <&i2c0_ck>, <&ap_dma_ck>; |
| clock-names = "main", "dma"; |
| clock-div = <16>; |
| clock-frequency = <400000>; |
| mediatek,have-pmic; |
| |
| #address-cells = <1>; |
| #size-cells = <0>; |
| }; |
