diff --git a/arch/arm/boot/dts/lpc32xx.dtsi b/arch/arm/boot/dts/lpc32xx.dtsi
index b7303a4e4236..ed0d6fb20122 100644
--- a/arch/arm/boot/dts/lpc32xx.dtsi
+++ b/arch/arm/boot/dts/lpc32xx.dtsi
@@ -230,7 +230,7 @@ sd: sd@20098000 {
 				status = "disabled";
 			};
 
-			i2s1: i2s@2009C000 {
+			i2s1: i2s@2009c000 {
 				compatible = "nxp,lpc3220-i2s";
 				reg = <0x2009C000 0x1000>;
 			};
@@ -273,7 +273,7 @@ uart6: serial@40098000 {
 				status = "disabled";
 			};
 
-			i2c1: i2c@400A0000 {
+			i2c1: i2c@400a0000 {
 				compatible = "nxp,pnx-i2c";
 				reg = <0x400A0000 0x100>;
 				interrupt-parent = <&sic1>;
@@ -284,7 +284,7 @@ i2c1: i2c@400A0000 {
 				clocks = <&clk LPC32XX_CLK_I2C1>;
 			};
 
-			i2c2: i2c@400A8000 {
+			i2c2: i2c@400a8000 {
 				compatible = "nxp,pnx-i2c";
 				reg = <0x400A8000 0x100>;
 				interrupt-parent = <&sic1>;
@@ -295,7 +295,7 @@ i2c2: i2c@400A8000 {
 				clocks = <&clk LPC32XX_CLK_I2C2>;
 			};
 
-			mpwm: mpwm@400E8000 {
+			mpwm: mpwm@400e8000 {
 				compatible = "nxp,lpc3220-motor-pwm";
 				reg = <0x400E8000 0x78>;
 				status = "disabled";
@@ -394,7 +394,7 @@ gpio: gpio@40028000 {
 				#gpio-cells = <3>; /* bank, pin, flags */
 			};
 
-			timer4: timer@4002C000 {
+			timer4: timer@4002c000 {
 				compatible = "nxp,lpc3220-timer";
 				reg = <0x4002C000 0x1000>;
 				interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
@@ -412,7 +412,7 @@ timer5: timer@40030000 {
 				status = "disabled";
 			};
 
-			watchdog: watchdog@4003C000 {
+			watchdog: watchdog@4003c000 {
 				compatible = "nxp,pnx4008-wdt";
 				reg = <0x4003C000 0x1000>;
 				clocks = <&clk LPC32XX_CLK_WDOG>;
@@ -451,7 +451,7 @@ tsc: tsc@40048000 {
 				status = "disabled";
 			};
 
-			timer1: timer@4004C000 {
+			timer1: timer@4004c000 {
 				compatible = "nxp,lpc3220-timer";
 				reg = <0x4004C000 0x1000>;
 				interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
@@ -475,7 +475,7 @@ timer2: timer@40058000 {
 				status = "disabled";
 			};
 
-			pwm1: pwm@4005C000 {
+			pwm1: pwm@4005c000 {
 				compatible = "nxp,lpc3220-pwm";
 				reg = <0x4005C000 0x4>;
 				clocks = <&clk LPC32XX_CLK_PWM1>;
@@ -484,7 +484,7 @@ pwm1: pwm@4005C000 {
 				status = "disabled";
 			};
 
-			pwm2: pwm@4005C004 {
+			pwm2: pwm@4005c004 {
 				compatible = "nxp,lpc3220-pwm";
 				reg = <0x4005C004 0x4>;
 				clocks = <&clk LPC32XX_CLK_PWM2>;