diff --git a/drivers/firmware/scmi/mailbox_agent.c b/drivers/firmware/scmi/mailbox_agent.c
index 3efdab9..8277c18 100644
--- a/drivers/firmware/scmi/mailbox_agent.c
+++ b/drivers/firmware/scmi/mailbox_agent.c
@@ -96,7 +96,7 @@
 static int scmi_mbox_get_channel(struct udevice *dev,
 				 struct scmi_channel **channel)
 {
-	struct scmi_mbox_channel *base_chan = dev_get_plat(dev->parent);
+	struct scmi_mbox_channel *base_chan = dev_get_plat(dev);
 	struct scmi_mbox_channel *chan;
 	int ret;
 
diff --git a/drivers/firmware/scmi/optee_agent.c b/drivers/firmware/scmi/optee_agent.c
index 2b2b8c1..db927fb 100644
--- a/drivers/firmware/scmi/optee_agent.c
+++ b/drivers/firmware/scmi/optee_agent.c
@@ -326,7 +326,7 @@
 static int scmi_optee_get_channel(struct udevice *dev,
 				  struct scmi_channel **channel)
 {
-	struct scmi_optee_channel *base_chan = dev_get_plat(dev->parent);
+	struct scmi_optee_channel *base_chan = dev_get_plat(dev);
 	struct scmi_optee_channel *chan;
 	u32 channel_id;
 	int ret;
diff --git a/drivers/firmware/scmi/scmi_agent-uclass.c b/drivers/firmware/scmi/scmi_agent-uclass.c
index c3f3d1f..8f48de3 100644
--- a/drivers/firmware/scmi/scmi_agent-uclass.c
+++ b/drivers/firmware/scmi/scmi_agent-uclass.c
@@ -137,7 +137,7 @@
 		return -ENODEV;
 
 	if (transport_dev_ops(parent)->of_get_channel)
-		return transport_dev_ops(parent)->of_get_channel(dev, channel);
+		return transport_dev_ops(parent)->of_get_channel(parent, channel);
 
 	/* Drivers without a get_channel operator don't need a channel ref */
 	*channel = NULL;
diff --git a/drivers/firmware/scmi/smccc_agent.c b/drivers/firmware/scmi/smccc_agent.c
index bc2eb67..6a52cd7 100644
--- a/drivers/firmware/scmi/smccc_agent.c
+++ b/drivers/firmware/scmi/smccc_agent.c
@@ -83,7 +83,7 @@
 static int scmi_smccc_get_channel(struct udevice *dev,
 				  struct scmi_channel **channel)
 {
-	struct scmi_smccc_channel *base_chan = dev_get_plat(dev->parent);
+	struct scmi_smccc_channel *base_chan = dev_get_plat(dev);
 	struct scmi_smccc_channel *chan;
 	u32 func_id;
 	int ret;