boards: beagle: pocketbeagle_2: a53: Enable I2C3

- I2C3 is the default config for P2.09 and P2.11 according to schematic.

Signed-off-by: Ayush Singh <[email protected]>

Author: Ayush1325

boards/beagle/pocketbeagle_2/pocketbeagle_2_am62_a53-common.dtsi

@@ -87,6 +87,12 @@
 	status = "okay";
 };
 
+&main_i2c3 {
+	pinctrl-0 = <&P2_09_A15_i2c3_scl &P2_11_B15_i2c3_sda>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
 &main_gpio0 {
 	pinctrl-0 = <&led_pins_default>;
 	pinctrl-names = "default";

boards/beagle/pocketbeagle_2/pocketbeagle_2_am62_a53-pinctrl.dtsi

@@ -262,6 +262,11 @@
 		pinmux = <K3_PINMUX(0x01D0, PIN_INPUT, MUX_MODE_7)>;
 	};
 
+	P2_09_A15_i2c3_scl: P2-09-A15-i2c3-scl-pins {
+		/* (A15) UART0_CTSn.I2C3_SCL */
+		pinmux = <K3_PINMUX(0x01D0, PIN_INPUT_PULLUP, MUX_MODE_2)>;
+	};
+
 	P2_10_gpio: P2-10-gpio-pins {
 		/* (AD21) RGMII2_TD2.GPIO0_91 */
 		pinmux = <K3_PINMUX(0x0174, PIN_INPUT, MUX_MODE_7)>;
@@ -272,6 +277,11 @@
 		pinmux = <K3_PINMUX(0x01D4, PIN_INPUT, MUX_MODE_7)>;
 	};
 
+	P2_11_B15_i2c3_sda: P2-11-B15-i2c3-sda-pins {
+		/* (B15) UART0_RTSn.I2C3_SDA */
+		pinmux = <K3_PINMUX(0x01D4, PIN_INPUT_PULLUP, MUX_MODE_2)>;
+	};
+
 	P2_17_gpio: P2-17-gpio-pins {
 		/* (AC24) VOUT0_PCLK.GPIO0_64 */
 		pinmux = <K3_PINMUX(0x0104, PIN_INPUT, MUX_MODE_7)>;