diff --git a/boards/arm/frdm_k22f/pinmux.c b/boards/arm/frdm_k22f/pinmux.c
index 8a2209bf347..9bcdb44349f 100644
--- a/boards/arm/frdm_k22f/pinmux.c
+++ b/boards/arm/frdm_k22f/pinmux.c
@@ -38,13 +38,6 @@ static int frdm_k22f_pinmux_init(const struct device *dev)
 	__ASSERT_NO_MSG(device_is_ready(porte));
 #endif
 
-#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(ftm0), nxp_kinetis_ftm_pwm, okay) && CONFIG_PWM
-	/* Red, green, blue LEDs as PWM channels*/
-	pinmux_pin_set(porta, 1, PORT_PCR_MUX(kPORT_MuxAlt3));
-	pinmux_pin_set(porta, 2, PORT_PCR_MUX(kPORT_MuxAlt3));
-	pinmux_pin_set(portd, 5, PORT_PCR_MUX(kPORT_MuxAlt4));
-#endif
-
 #if DT_NODE_HAS_STATUS(DT_NODELABEL(spi0), okay) && CONFIG_SPI
 	/* SPI0 CS0, SCK, SOUT, SIN */
 	pinmux_pin_set(portc, 4, PORT_PCR_MUX(kPORT_MuxAlt2));
diff --git a/boards/arm/frdm_k64f/pinmux.c b/boards/arm/frdm_k64f/pinmux.c
index e4f02265bed..eb21509d76e 100644
--- a/boards/arm/frdm_k64f/pinmux.c
+++ b/boards/arm/frdm_k64f/pinmux.c
@@ -59,17 +59,6 @@ static int frdm_k64f_pinmux_init(const struct device *dev)
 	pinmux_pin_set(portb, 10, PORT_PCR_MUX(kPORT_PinDisabledOrAnalog));
 #endif
 
-#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(ftm0), nxp_kinetis_ftm_pwm, okay) \
-	&& CONFIG_PWM
-	pinmux_pin_set(portc,  1, PORT_PCR_MUX(kPORT_MuxAlt4));
-#endif
-
-#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(ftm3), nxp_kinetis_ftm_pwm, okay) \
-	&& CONFIG_PWM
-	pinmux_pin_set(portc,  8, PORT_PCR_MUX(kPORT_MuxAlt3));
-	pinmux_pin_set(portc,  9, PORT_PCR_MUX(kPORT_MuxAlt3));
-#endif
-
 #if DT_NODE_HAS_STATUS(DT_NODELABEL(enet), okay) && CONFIG_NET_L2_ETHERNET
 	pinmux_pin_set(porta,  5, PORT_PCR_MUX(kPORT_MuxAlt4));
 	pinmux_pin_set(porta, 12, PORT_PCR_MUX(kPORT_MuxAlt4));
diff --git a/boards/arm/frdm_k82f/pinmux.c b/boards/arm/frdm_k82f/pinmux.c
index 606aa5e1e92..9a32048fb96 100644
--- a/boards/arm/frdm_k82f/pinmux.c
+++ b/boards/arm/frdm_k82f/pinmux.c
@@ -38,13 +38,6 @@ static int frdm_k82f_pinmux_init(const struct device *dev)
 	__ASSERT_NO_MSG(device_is_ready(porte));
 #endif
 
-#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(ftm3), nxp_kinetis_ftm_pwm, okay) && CONFIG_PWM
-	/* Red, green, blue LEDs as PWM channels */
-	pinmux_pin_set(portc,  8, PORT_PCR_MUX(kPORT_MuxAlt3));
-	pinmux_pin_set(portc,  9, PORT_PCR_MUX(kPORT_MuxAlt3));
-	pinmux_pin_set(portc, 10, PORT_PCR_MUX(kPORT_MuxAlt3));
-#endif
-
 #if DT_NODE_HAS_STATUS(DT_NODELABEL(i2c3), okay) && CONFIG_I2C
 	/* I2C3 SDA, SCL */
 	pinmux_pin_set(porta, 1, PORT_PCR_MUX(kPORT_MuxAlt4)
diff --git a/boards/arm/hexiwear_k64/pinmux.c b/boards/arm/hexiwear_k64/pinmux.c
index d593f7271c6..71b093e3740 100644
--- a/boards/arm/hexiwear_k64/pinmux.c
+++ b/boards/arm/hexiwear_k64/pinmux.c
@@ -34,13 +34,6 @@ static int hexiwear_k64_pinmux_init(const struct device *dev)
 	__ASSERT_NO_MSG(device_is_ready(porte));
 #endif
 
-#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(ftm3), nxp_kinetis_ftm_pwm, okay) && CONFIG_PWM
-	/* Red, green, blue LEDs as PWM channels */
-	pinmux_pin_set(portc,  8, PORT_PCR_MUX(kPORT_MuxAlt3));
-	pinmux_pin_set(portc,  9, PORT_PCR_MUX(kPORT_MuxAlt3));
-	pinmux_pin_set(portd,  0, PORT_PCR_MUX(kPORT_MuxAlt4));
-#endif
-
 #if DT_NODE_HAS_STATUS(DT_NODELABEL(i2c0), okay) && CONFIG_I2C
 	/* I2C0 SCL, SDA - heart rate, light, humidity */
 	pinmux_pin_set(portb,  0, PORT_PCR_MUX(kPORT_MuxAlt2)
diff --git a/boards/arm/rddrone_fmuk66/pinmux.c b/boards/arm/rddrone_fmuk66/pinmux.c
index 755c93c8ed0..765bdc67717 100644
--- a/boards/arm/rddrone_fmuk66/pinmux.c
+++ b/boards/arm/rddrone_fmuk66/pinmux.c
@@ -95,33 +95,6 @@ static int rddrone_fmuk66_pinmux_init(const struct device *dev)
 	pinmux_pin_set(portb, 23, PORT_PCR_MUX(kPORT_MuxAlt2));
 #endif
 
-
-#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(ftm0), nxp_kinetis_ftm_pwm, okay) && CONFIG_PWM
-	/* FlexTimer0 Channels for FMU (servo control) */
-	/* fmu ch1 */
-	pinmux_pin_set(portc,  1, PORT_PCR_MUX(kPORT_MuxAlt4));
-	/* fmu ch2 */
-	pinmux_pin_set(porta,  4, PORT_PCR_MUX(kPORT_MuxAlt3));
-	/* fmu ch3 */
-	pinmux_pin_set(portd,  4, PORT_PCR_MUX(kPORT_MuxAlt4));
-	/* fmu ch4 */
-	pinmux_pin_set(portd,  5, PORT_PCR_MUX(kPORT_MuxAlt4));
-#endif
-
-#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(ftm3), nxp_kinetis_ftm_pwm, okay) && CONFIG_PWM
-	/* FlexTimer3 Channels for PWM controlled RGB light and FMU (servo control) */
-	/* red */
-	pinmux_pin_set(portd,  1, PORT_PCR_MUX(kPORT_MuxAlt4));
-	/* green */
-	pinmux_pin_set(portc,  9, PORT_PCR_MUX(kPORT_MuxAlt3));
-	/* blue */
-	pinmux_pin_set(portc,  8, PORT_PCR_MUX(kPORT_MuxAlt3));
-	/* fmu ch5 */
-	pinmux_pin_set(porte, 11, PORT_PCR_MUX(kPORT_MuxAlt6));
-	/* fmu ch6 */
-	pinmux_pin_set(porte, 12, PORT_PCR_MUX(kPORT_MuxAlt6));
-#endif
-
 	return 0;
 }
 
diff --git a/boards/arm/twr_ke18f/pinmux.c b/boards/arm/twr_ke18f/pinmux.c
index d4a9b5574ca..cdc31bb4fc0 100644
--- a/boards/arm/twr_ke18f/pinmux.c
+++ b/boards/arm/twr_ke18f/pinmux.c
@@ -38,26 +38,6 @@ static int twr_ke18f_pinmux_init(const struct device *dev)
 	__ASSERT_NO_MSG(device_is_ready(porte));
 #endif
 
-#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(ftm0), nxp_kinetis_ftm_pwm, okay) && CONFIG_PWM
-	/* Tri-color LED as PWM */
-	pinmux_pin_set(portb, 5, PORT_PCR_MUX(kPORT_MuxAlt2));
-	pinmux_pin_set(portd, 15, PORT_PCR_MUX(kPORT_MuxAlt2));
-	pinmux_pin_set(portd, 16, PORT_PCR_MUX(kPORT_MuxAlt2));
-#endif
-
-#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(ftm2), nxp_kinetis_ftm_pwm, okay) && CONFIG_PWM
-	/* PWM output on J20 pin 5 */
-	pinmux_pin_set(porte, 15, PORT_PCR_MUX(kPORT_MuxAlt4));
-#endif
-
-#if DT_NODE_HAS_COMPAT_STATUS(DT_NODELABEL(ftm3), nxp_kinetis_ftm_pwm, okay) && CONFIG_PWM
-	/* User LEDs as PWM */
-	pinmux_pin_set(portc, 10, PORT_PCR_MUX(kPORT_MuxAlt2));
-	pinmux_pin_set(portc, 11, PORT_PCR_MUX(kPORT_MuxAlt2));
-	pinmux_pin_set(portc, 12, PORT_PCR_MUX(kPORT_MuxAlt2));
-	pinmux_pin_set(portc, 13, PORT_PCR_MUX(kPORT_MuxAlt2));
-#endif
-
 #if DT_NODE_HAS_STATUS(DT_NODELABEL(pwt), okay) && CONFIG_PWM_CAPTURE
 	/* PWM capture input on J20 pin 8 */
 	pinmux_pin_set(porte, 11, PORT_PCR_MUX(kPORT_MuxAlt2));
diff --git a/tests/drivers/pwm/pwm_loopback/boards/twr_ke18f.overlay b/tests/drivers/pwm/pwm_loopback/boards/twr_ke18f.overlay
index e8e6e391330..d618f2537e1 100644
--- a/tests/drivers/pwm/pwm_loopback/boards/twr_ke18f.overlay
+++ b/tests/drivers/pwm/pwm_loopback/boards/twr_ke18f.overlay
@@ -44,4 +44,5 @@
 	prescaler = <128>;
 	#pwm-cells = <3>;
 	pinctrl-0 = <&ftm2_default>;
+	pinctrl-names = "default";
 };