arm: dts: Add Mediatek MT2701 i2c device node

Add MT2701 i2c device node.
Signed-off-by: Jun Gao <jun.gao@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

arch/arm/boot/dts/mt2701-evb.dts

@@ -28,7 +28,49 @@ &auxadc {
 	status = "okay";
 };
 
+&i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins_a>;
+	status = "okay";
+};
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins_a>;
+	status = "okay";
+};
+
+&i2c2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c2_pins_a>;
+	status = "okay";
+};
+
 &pio {
+	i2c0_pins_a: i2c0@0 {
+		pins1 {
+			pinmux = <MT2701_PIN_75_SDA0__FUNC_SDA0>,
+				 <MT2701_PIN_76_SCL0__FUNC_SCL0>;
+			bias-disable;
+		};
+	};
+
+	i2c1_pins_a: i2c1@0 {
+		pins1 {
+			pinmux = <MT2701_PIN_57_SDA1__FUNC_SDA1>,
+				 <MT2701_PIN_58_SCL1__FUNC_SCL1>;
+			bias-disable;
+		};
+	};
+
+	i2c2_pins_a: i2c2@0 {
+		pins1 {
+			pinmux = <MT2701_PIN_77_SDA2__FUNC_SDA2>,
+				 <MT2701_PIN_78_SCL2__FUNC_SCL2>;
+			bias-disable;
+		};
+	};
+
 	spi_pins_a: spi0@0 {
 		pins_spi {
 			pinmux = <MT2701_PIN_53_SPI0_CSN__FUNC_SPI0_CS>,

arch/arm/boot/dts/mt2701.dtsi

@@ -297,6 +297,48 @@ uart3: serial@11005000 {
 		status = "disabled";
 	};
 
+	i2c0: i2c@11007000 {
+		compatible = "mediatek,mt2701-i2c",
+			     "mediatek,mt6577-i2c";
+		reg = <0 0x11007000 0 0x70>,
+		      <0 0x11000200 0 0x80>;
+		interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_LOW>;
+		clock-div = <16>;
+		clocks = <&pericfg CLK_PERI_I2C0>, <&pericfg CLK_PERI_AP_DMA>;
+		clock-names = "main", "dma";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "disabled";
+	};
+
+	i2c1: i2c@11008000 {
+		compatible = "mediatek,mt2701-i2c",
+			     "mediatek,mt6577-i2c";
+		reg = <0 0x11008000 0 0x70>,
+		      <0 0x11000280 0 0x80>;
+		interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_LOW>;
+		clock-div = <16>;
+		clocks = <&pericfg CLK_PERI_I2C1>, <&pericfg CLK_PERI_AP_DMA>;
+		clock-names = "main", "dma";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "disabled";
+	};
+
+	i2c2: i2c@11009000 {
+		compatible = "mediatek,mt2701-i2c",
+			     "mediatek,mt6577-i2c";
+		reg = <0 0x11009000 0 0x70>,
+		      <0 0x11000300 0 0x80>;
+		interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_LOW>;
+		clock-div = <16>;
+		clocks = <&pericfg CLK_PERI_I2C2>, <&pericfg CLK_PERI_AP_DMA>;
+		clock-names = "main", "dma";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "disabled";
+	};
+
 	spi0: spi@1100a000 {
 		compatible = "mediatek,mt2701-spi";
 		#address-cells = <1>;