rpmsg: Update rpmsg_chrdev_register_device function

The rpmsg_chrdev driver has been replaced by the rpmsg_ctrl driver
for the /dev/rpmsg_ctrlX devices management. The reference for the
driver override is now the rpmsg_ctrl.

Update the rpmsg_chrdev_register_device function to reflect the update,
and rename the function to use the rpmsg_ctrldev prefix.

The platform drivers are updated accordingly.
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220124102524.295783-8-arnaud.pouliquen@foss.st.com

drivers/rpmsg/qcom_glink_native.c

@@ -1715,7 +1715,7 @@ static int qcom_glink_create_chrdev(struct qcom_glink *glink)
 	rpdev->dev.parent = glink->dev;
 	rpdev->dev.release = qcom_glink_device_release;
 
-	return rpmsg_chrdev_register_device(rpdev);
+	return rpmsg_ctrldev_register_device(rpdev);
 }
 
 struct qcom_glink *qcom_glink_native_probe(struct device *dev,

drivers/rpmsg/qcom_smd.c

@@ -1113,7 +1113,7 @@ static int qcom_smd_create_chrdev(struct qcom_smd_edge *edge)
 	qsdev->rpdev.dev.parent = &edge->dev;
 	qsdev->rpdev.dev.release = qcom_smd_release_device;
 
-	return rpmsg_chrdev_register_device(&qsdev->rpdev);
+	return rpmsg_ctrldev_register_device(&qsdev->rpdev);
 }
 
 /*

drivers/rpmsg/rpmsg_ctrl.c

@@ -179,7 +179,7 @@ static struct rpmsg_driver rpmsg_ctrldev_driver = {
 	.probe = rpmsg_ctrldev_probe,
 	.remove = rpmsg_ctrldev_remove,
 	.drv = {
-		.name = "rpmsg_chrdev",
+		.name = "rpmsg_ctrl",
 	},
 };
 

drivers/rpmsg/rpmsg_internal.h

@@ -86,16 +86,16 @@ struct rpmsg_device *rpmsg_create_channel(struct rpmsg_device *rpdev,
 int rpmsg_release_channel(struct rpmsg_device *rpdev,
 			  struct rpmsg_channel_info *chinfo);
 /**
- * rpmsg_chrdev_register_device() - register chrdev device based on rpdev
+ * rpmsg_ctrldev_register_device() - register a char device for control based on rpdev
  * @rpdev:	prepared rpdev to be used for creating endpoints
  *
  * This function wraps rpmsg_register_device() preparing the rpdev for use as
  * basis for the rpmsg chrdev.
  */
-static inline int rpmsg_chrdev_register_device(struct rpmsg_device *rpdev)
+static inline int rpmsg_ctrldev_register_device(struct rpmsg_device *rpdev)
 {
-	strcpy(rpdev->id.name, "rpmsg_chrdev");
-	rpdev->driver_override = "rpmsg_chrdev";
+	strcpy(rpdev->id.name, "rpmsg_ctrl");
+	rpdev->driver_override = "rpmsg_ctrl";
 
 	return rpmsg_register_device(rpdev);
 }

drivers/rpmsg/virtio_rpmsg_bus.c

@@ -849,7 +849,7 @@ static struct rpmsg_device *rpmsg_virtio_add_ctrl_dev(struct virtio_device *vdev
 	rpdev_ctrl->dev.release = virtio_rpmsg_release_device;
 	rpdev_ctrl->little_endian = virtio_is_little_endian(vrp->vdev);
 
-	err = rpmsg_chrdev_register_device(rpdev_ctrl);
+	err = rpmsg_ctrldev_register_device(rpdev_ctrl);
 	if (err) {
 		kfree(vch);
 		return ERR_PTR(err);