diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index ed75bd30d9af..d9542dfff83f 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -615,7 +615,7 @@ pwm1: pwm@30660000 {
 				clocks = <&clk IMX8MP_CLK_PWM1_ROOT>,
 					 <&clk IMX8MP_CLK_PWM1_ROOT>;
 				clock-names = "ipg", "per";
-				#pwm-cells = <2>;
+				#pwm-cells = <3>;
 				status = "disabled";
 			};
 
@@ -626,7 +626,7 @@ pwm2: pwm@30670000 {
 				clocks = <&clk IMX8MP_CLK_PWM2_ROOT>,
 					 <&clk IMX8MP_CLK_PWM2_ROOT>;
 				clock-names = "ipg", "per";
-				#pwm-cells = <2>;
+				#pwm-cells = <3>;
 				status = "disabled";
 			};
 
@@ -637,7 +637,7 @@ pwm3: pwm@30680000 {
 				clocks = <&clk IMX8MP_CLK_PWM3_ROOT>,
 					 <&clk IMX8MP_CLK_PWM3_ROOT>;
 				clock-names = "ipg", "per";
-				#pwm-cells = <2>;
+				#pwm-cells = <3>;
 				status = "disabled";
 			};
 
@@ -648,7 +648,7 @@ pwm4: pwm@30690000 {
 				clocks = <&clk IMX8MP_CLK_PWM4_ROOT>,
 					 <&clk IMX8MP_CLK_PWM4_ROOT>;
 				clock-names = "ipg", "per";
-				#pwm-cells = <2>;
+				#pwm-cells = <3>;
 				status = "disabled";
 			};