boards: pt2: enable I2C1/2/3/4

Enable all used I2C buses on the board.

Signed-off-by: Gerard Marull-Paretas <[email protected]>

Author: gmarull

boards/coredevices/pt2/pt2-pinctrl.dtsi

@@ -6,6 +6,34 @@
 #include <zephyr/dt-bindings/pinctrl/sf32lb52x-pinctrl.h>
 
 &pinctrl {
+	i2c1_default: i2c1_default {
+		group1 {
+			pinmux = <PA31_I2C1_SCL>, <PA30_I2C1_SDA>;
+			input-enable;
+		};
+	};
+
+	i2c2_default: i2c2_default {
+		group1 {
+			pinmux = <PA32_I2C2_SCL>, <PA33_I2C2_SDA>;
+			input-enable;
+		};
+	};
+
+	i2c3_default: i2c3_default {
+		group1 {
+			pinmux = <PA11_I2C3_SCL>, <PA10_I2C3_SDA>;
+			input-enable;
+		};
+	};
+
+	i2c4_default: i2c4_default {
+		group1 {
+			pinmux = <PA09_I2C4_SCL>, <PA20_I2C4_SDA>;
+			input-enable;
+		};
+	};
+
 	usart1_default: usart1_default {
 		group1 {
 			pinmux = <PA19_USART1_TXD>;

boards/coredevices/pt2/pt2.dts

@@ -9,6 +9,7 @@
 #include <sifli/sf32lb52x-ram012.dtsi>
 #include <zephyr/dt-bindings/dma/sf32lb52x-dma.h>
 #include <zephyr/dt-bindings/gpio/gpio.h>
+#include <zephyr/dt-bindings/i2c/i2c.h>
 #include <zephyr/dt-bindings/input/input-event-codes.h>
 
 #include "pt2-pinctrl.dtsi"
@@ -79,6 +80,34 @@
 	status = "okay";
 };
 
+&i2c1 {
+	status = "okay";
+	pinctrl-0 = <&i2c1_default>;
+	pinctrl-names = "default";
+	clock-frequency = <I2C_BITRATE_FAST>;
+};
+
+&i2c2 {
+	status = "okay";
+	pinctrl-0 = <&i2c2_default>;
+	pinctrl-names = "default";
+	clock-frequency = <I2C_BITRATE_FAST>;
+};
+
+&i2c3 {
+	status = "okay";
+	pinctrl-0 = <&i2c3_default>;
+	pinctrl-names = "default";
+	clock-frequency = <I2C_BITRATE_FAST>;
+};
+
+&i2c4 {
+	status = "okay";
+	pinctrl-0 = <&i2c4_default>;
+	pinctrl-names = "default";
+	clock-frequency = <I2C_BITRATE_FAST>;
+};
+
 &mpi2 {
 	compatible = "sifli,sf32lb-mpi-qspi-nor";
 	dmas = <&dmac 0 SF32LB52X_DMA_REQ_MPI2 SF32LB_DMA_PL_MEDIUM>;