diff --git a/arch/arm/boot/dts/imx7d-flex-concentrator.dts b/arch/arm/boot/dts/imx7d-flex-concentrator.dts
index bd6b5285aa8d..3a723843d562 100644
--- a/arch/arm/boot/dts/imx7d-flex-concentrator.dts
+++ b/arch/arm/boot/dts/imx7d-flex-concentrator.dts
@@ -107,7 +107,6 @@ &adc1 {
 &ecspi2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_ecspi2>;
-	num-chipselects = <1>;
 	cs-gpios = <&gpio4 23 GPIO_ACTIVE_LOW>;
 	status = "okay";
 
@@ -122,7 +121,6 @@ pcf2127: rtc@0 {
 &ecspi4 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_ecspi4>;
-	num-chipselects = <1>;
 	cs-gpios = <&gpio3 3 GPIO_ACTIVE_LOW>;
 	status = "okay";