dm: core: Update some functions to use const
Quite a few functions do not actually modify the device that is passed in.
Update the function signatures to reflect that.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/include/dm/device.h b/include/dm/device.h
index 9812d86..f873fc6 100644
--- a/include/dm/device.h
+++ b/include/dm/device.h
@@ -270,7 +270,7 @@
* @dev Device to check
* @return platform data, or NULL if none
*/
-void *dev_get_platdata(struct udevice *dev);
+void *dev_get_platdata(const struct udevice *dev);
/**
* dev_get_parent_platdata() - Get the parent platform data for a device
@@ -280,7 +280,7 @@
* @dev Device to check
* @return parent's platform data, or NULL if none
*/
-void *dev_get_parent_platdata(struct udevice *dev);
+void *dev_get_parent_platdata(const struct udevice *dev);
/**
* dev_get_uclass_platdata() - Get the uclass platform data for a device
@@ -290,7 +290,7 @@
* @dev Device to check
* @return uclass's platform data, or NULL if none
*/
-void *dev_get_uclass_platdata(struct udevice *dev);
+void *dev_get_uclass_platdata(const struct udevice *dev);
/**
* dev_get_priv() - Get the private data for a device
@@ -300,7 +300,7 @@
* @dev Device to check
* @return private data, or NULL if none
*/
-void *dev_get_priv(struct udevice *dev);
+void *dev_get_priv(const struct udevice *dev);
/**
* dev_get_parent_priv() - Get the parent private data for a device
@@ -314,7 +314,7 @@
* @dev Device to check
* @return parent data, or NULL if none
*/
-void *dev_get_parent_priv(struct udevice *dev);
+void *dev_get_parent_priv(const struct udevice *dev);
/**
* dev_get_uclass_priv() - Get the private uclass data for a device
@@ -324,7 +324,7 @@
* @dev Device to check
* @return private uclass data for this device, or NULL if none
*/
-void *dev_get_uclass_priv(struct udevice *dev);
+void *dev_get_uclass_priv(const struct udevice *dev);
/**
* struct dev_get_parent() - Get the parent of a device
@@ -332,7 +332,7 @@
* @child: Child to check
* @return parent of child, or NULL if this is the root device
*/
-struct udevice *dev_get_parent(struct udevice *child);
+struct udevice *dev_get_parent(const struct udevice *child);
/**
* dev_get_driver_data() - get the driver data used to bind a device
@@ -359,7 +359,7 @@
* @dev: Device to check
* @return driver data (0 if none is provided)
*/
-ulong dev_get_driver_data(struct udevice *dev);
+ulong dev_get_driver_data(const struct udevice *dev);
/**
* dev_get_driver_ops() - get the device's driver's operations
@@ -370,7 +370,7 @@
* @dev: Device to check
* @return void pointer to driver's operations or NULL for NULL-dev or NULL-ops
*/
-const void *dev_get_driver_ops(struct udevice *dev);
+const void *dev_get_driver_ops(const struct udevice *dev);
/**
* device_get_uclass_id() - return the uclass ID of a device
@@ -378,7 +378,7 @@
* @dev: Device to check
* @return uclass ID for the device
*/
-enum uclass_id device_get_uclass_id(struct udevice *dev);
+enum uclass_id device_get_uclass_id(const struct udevice *dev);
/**
* dev_get_uclass_name() - return the uclass name of a device
@@ -388,7 +388,7 @@
* @dev: Device to check
* @return pointer to the uclass name for the device
*/
-const char *dev_get_uclass_name(struct udevice *dev);
+const char *dev_get_uclass_name(const struct udevice *dev);
/**
* device_get_child() - Get the child of a device by index
@@ -525,7 +525,7 @@
* @dev: Device to check
* @return true if the device has one or more children
*/
-bool device_has_children(struct udevice *dev);
+bool device_has_children(const struct udevice *dev);
/**
* device_has_active_children() - check if a device has any active children