diff --git a/arch/arm/mach-imx/imx8ulp/soc.c b/arch/arm/mach-imx/imx8ulp/soc.c
index 5d95fb8..3498cf9 100644
--- a/arch/arm/mach-imx/imx8ulp/soc.c
+++ b/arch/arm/mach-imx/imx8ulp/soc.c
@@ -673,11 +673,9 @@
 static int imx8ulp_check_mu(void *ctx, struct event *event)
 {
 	struct udevice *devp;
-	int node, ret;
-
-	node = fdt_node_offset_by_compatible(gd->fdt_blob, -1, "fsl,imx8ulp-mu");
+	int ret;
 
-	ret = uclass_get_device_by_of_offset(UCLASS_MISC, node, &devp);
+	ret = uclass_get_device_by_driver(UCLASS_MISC, DM_DRIVER_GET(imx8ulp_mu), &devp);
 	if (ret) {
 		printf("could not get S400 mu %d\n", ret);
 		return ret;