diff --git a/dts/arm/st/l4/stm32l4.dtsi b/dts/arm/st/l4/stm32l4.dtsi
index 8d001d45c7b..89af5dfc7d3 100644
--- a/dts/arm/st/l4/stm32l4.dtsi
+++ b/dts/arm/st/l4/stm32l4.dtsi
@@ -147,17 +147,17 @@
 			label= "I2C_1";
 		};
 
-		i2c2: i2c@40005800 {
+		i2c3: i2c@40005C00 {
 			compatible = "st,stm32-i2c-v2";
 			clock-frequency = <I2C_BITRATE_STANDARD>;
 			#address-cells = <1>;
 			#size-cells = <0>;
-			reg = <0x40005800 0x400>;
-			clocks = <&rcc STM32_CLOCK_BUS_APB1 0x00400000>;
-			interrupts = <33 0>, <34 0>;
+			reg = <0x40005C00 0x400>;
+			clocks = <&rcc STM32_CLOCK_BUS_APB1 0x00800000>;
+			interrupts = <72 0>, <73 0>;
 			interrupt-names = "event", "error";
 			status = "disabled";
-			label= "I2C_2";
+			label= "I2C_3";
 		};
 
 		spi1: spi@40013000 {
diff --git a/dts/arm/st/l4/stm32l475.dtsi b/dts/arm/st/l4/stm32l475.dtsi
index ab7a6d734ee..1db6e0f2319 100644
--- a/dts/arm/st/l4/stm32l475.dtsi
+++ b/dts/arm/st/l4/stm32l475.dtsi
@@ -78,19 +78,6 @@
 			label= "I2C_2";
 		};
 
-		i2c3: i2c@40005C00 {
-			compatible = "st,stm32-i2c-v2";
-			clock-frequency = <I2C_BITRATE_STANDARD>;
-			#address-cells = <1>;
-			#size-cells = <0>;
-			reg = <0x40005C00 0x400>;
-			clocks = <&rcc STM32_CLOCK_BUS_APB1 0x00800000>;
-			interrupts = <72 0>, <73 0>;
-			interrupt-names = "event", "error";
-			status = "disabled";
-			label= "I2C_3";
-		};
-
 		spi3: spi@40003C00 {
 			compatible = "st,stm32-spi-fifo";
 			#address-cells = <1>;
diff --git a/dts/arm/st/l4/stm32l4r5.dtsi b/dts/arm/st/l4/stm32l4r5.dtsi
index 43763f31477..a9b114d30fe 100644
--- a/dts/arm/st/l4/stm32l4r5.dtsi
+++ b/dts/arm/st/l4/stm32l4r5.dtsi
@@ -75,24 +75,13 @@
 			label = "UART_5";
 		};
 
-		i2c3: i2c@40005C00 {
-			compatible = "st,stm32-i2c-v2";
-			clock-frequency = <I2C_BITRATE_STANDARD>;
-			#address-cells = <1>;
-			#size-cells = <0>;
-			reg = <0x40005C00 0x400>;
-			interrupts = <72 0>, <73 0>;
-			interrupt-names = "event", "error";
-			status = "disabled";
-			label= "I2C_3";
-		};
-
 		i2c4: i2c@40008400 {
 			compatible = "st,stm32-i2c-v2";
 			clock-frequency = <I2C_BITRATE_STANDARD>;
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0x40008400 0x400>;
+			clocks = <&rcc STM32_CLOCK_BUS_APB1_2 0x00000002>;
 			interrupts = <83 0>, <84 0>;
 			interrupt-names = "event", "error";
 			status = "disabled";