ARM: dts: rockchip: Add i2c2 node to rv1126

Add i2c2 node and i2c2_xfer pinctrl for Rockchip RV1126
Signed-off-by: Tim Lunn <tim@feathertop.org>
Link: https://lore.kernel.org/r/20231203124004.2676174-5-tim@feathertop.orgSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm/boot/dts/rockchip/rv1126-pinctrl.dtsi

@@ -87,6 +87,16 @@ i2c0_xfer: i2c0-xfer {
 				<0 RK_PB5 1 &pcfg_pull_none_drv_level_0_smt>;
 		};
 	};
+	i2c2 {
+		/omit-if-no-ref/
+		i2c2_xfer: i2c2-xfer {
+			rockchip,pins =
+				/* i2c2_scl */
+				<0 RK_PC2 1 &pcfg_pull_none_drv_level_0_smt>,
+				/* i2c2_sda */
+				<0 RK_PC3 1 &pcfg_pull_none_drv_level_0_smt>;
+		};
+	};
 	pwm2 {
 		/omit-if-no-ref/
 		pwm2m0_pins: pwm2m0-pins {

arch/arm/boot/dts/rockchip/rv1126.dtsi

@@ -21,6 +21,7 @@ / {
 
 	aliases {
 		i2c0 = &i2c0;
+		i2c2 = &i2c2;
 		serial0 = &uart0;
 		serial1 = &uart1;
 		serial2 = &uart2;
@@ -237,6 +238,20 @@ i2c0: i2c@ff3f0000 {
 		status = "disabled";
 	};
 
+	i2c2: i2c@ff400000 {
+		compatible = "rockchip,rv1126-i2c", "rockchip,rk3399-i2c";
+		reg = <0xff400000 0x1000>;
+		interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>;
+		rockchip,grf = <&pmugrf>;
+		clocks = <&pmucru CLK_I2C2>, <&pmucru PCLK_I2C2>;
+		clock-names = "i2c", "pclk";
+		pinctrl-names = "default";
+		pinctrl-0 = <&i2c2_xfer>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "disabled";
+	};
+
 	uart1: serial@ff410000 {
 		compatible = "rockchip,rv1126-uart", "snps,dw-apb-uart";
 		reg = <0xff410000 0x100>;