doc: add include/dm/uclass.h to the HTML documentation

Correct Sphinx style comments in include/dm/uclass.h
and add the driver model UCLASS API to the HTML documentation.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc/api/dm.rst

@@ -0,0 +1,9 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+Driver Model
+============
+
+Uclass and Driver
+-----------------
+
+.. kernel-doc:: include/dm/uclass.h

doc/api/index.rst

@@ -7,6 +7,7 @@ U-Boot API documentation
    :maxdepth: 2
 
    dfu
+   dm
    efi
    getopt
    linker_lists

include/dm/uclass.h

@@ -84,7 +84,7 @@ struct udevice;
  * its children. If non-zero this is the size of this data, to be allocated
  * in the child device's parent_plat pointer. This value is only used as
  * a fallback if this member is 0 in the driver.
- * @flags: Flags for this uclass (DM_UC_...)
+ * @flags: Flags for this uclass ``(DM_UC_...)``
  */
 struct uclass_driver {
 	const char *name;
@@ -127,17 +127,16 @@ struct uclass_driver {
  * build time. Before this is used, an extern UCLASS_DRIVER() must have been
  * declared.
  *
- * For example:
+ * For example::
  *
  *   extern UCLASS_DRIVER(clk);
- *
  *   struct uclass_driver *drvs[] = {
  *       DM_UCLASS_DRIVER_REF(clk),
  *   };
  *
  * @_name: Name of the uclass_driver. This must be a valid C identifier, used by
  *	the linker_list.
- * @returns struct uclass_driver * for the uclass driver
+ * Return: struct uclass_driver * for the uclass driver
  */
 #define DM_UCLASS_DRIVER_REF(_name)					\
 	ll_entry_ref(struct uclass_driver, _name, uclass_driver)
@@ -145,8 +144,8 @@ struct uclass_driver {
 /**
  * uclass_get_priv() - Get the private data for a uclass
  *
- * @uc		Uclass to check
+ * @uc:	Uclass to check
- * @return private data, or NULL if none
+ * Return: private data, or NULL if none
  */
 void *uclass_get_priv(const struct uclass *uc);
 
@@ -159,8 +158,9 @@ void *uclass_get_priv(const struct uclass *uc);
  *
  * @key: ID to look up
  * @ucp: Returns pointer to uclass (there is only one per ID)
- * @return 0 if OK, -EDEADLK if driver model is not yet inited, other -ve on
+ * Return:
- *	other error
+ * 0 if OK, -EDEADLK if driver model is not yet inited,
+ * other -ve on other error
  */
 int uclass_get(enum uclass_id key, struct uclass **ucp);
 
@@ -168,16 +168,16 @@ int uclass_get(enum uclass_id key, struct uclass **ucp);
  * uclass_get_name() - Get the name of a uclass driver
  *
  * @id: ID to look up
- * @returns the name of the uclass driver for that ID, or NULL if none
+ * Return: the name of the uclass driver for that ID, or NULL if none
  */
 const char *uclass_get_name(enum uclass_id id);
 
 /**
- * uclass_get_by_name() - Look up a uclass by its driver name
+ * uclass_get_by_name_len() - Look up a uclass by its partial driver name
  *
  * @name: Name to look up
- * @len: Length of name
+ * @len: Length of the partial name
- * @returns the associated uclass ID, or UCLASS_INVALID if not found
+ * Return: the associated uclass ID, or UCLASS_INVALID if not found
  */
 enum uclass_id uclass_get_by_name_len(const char *name, int len);
 
@@ -185,7 +185,7 @@ enum uclass_id uclass_get_by_name_len(const char *name, int len);
  * uclass_get_by_name() - Look up a uclass by its driver name
  *
  * @name: Name to look up
- * @returns the associated uclass ID, or UCLASS_INVALID if not found
+ * Return: the associated uclass ID, or UCLASS_INVALID if not found
  */
 enum uclass_id uclass_get_by_name(const char *name);
 
@@ -197,7 +197,7 @@ enum uclass_id uclass_get_by_name(const char *name);
  * @id: ID to look up
  * @index: Device number within that uclass (0=first)
  * @devp: Returns pointer to device (there is only one per for each ID)
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
  */
 int uclass_get_device(enum uclass_id id, int index, struct udevice **devp);
 
@@ -211,7 +211,7 @@ int uclass_get_device(enum uclass_id id, int index, struct udevice **devp);
  * @id: ID to look up
  * @name: name of a device to get
  * @devp: Returns pointer to device (the first one with the name)
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
  */
 int uclass_get_device_by_name(enum uclass_id id, const char *name,
 			      struct udevice **devp);
@@ -228,7 +228,7 @@ int uclass_get_device_by_name(enum uclass_id id, const char *name,
  * @id: ID to look up
  * @seq: Sequence number to find (0=first)
  * @devp: Returns pointer to device (there is only one for each seq)
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
  */
 int uclass_get_device_by_seq(enum uclass_id id, int seq, struct udevice **devp);
 
@@ -243,7 +243,7 @@ int uclass_get_device_by_seq(enum uclass_id id, int seq, struct udevice **devp);
  * @id: ID to look up
  * @node: Device tree offset to search for (if -ve then -ENODEV is returned)
  * @devp: Returns pointer to device (there is only one for each node)
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
  */
 int uclass_get_device_by_of_offset(enum uclass_id id, int node,
 				   struct udevice **devp);
@@ -257,9 +257,9 @@ int uclass_get_device_by_of_offset(enum uclass_id id, int node,
  * The device is probed to activate it ready for use.
  *
  * @id: ID to look up
- * @np: Device tree node to search for (if NULL then -ENODEV is returned)
+ * @node: Device tree node to search for (if NULL then -ENODEV is returned)
  * @devp: Returns pointer to device (there is only one for each node)
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
  */
 int uclass_get_device_by_ofnode(enum uclass_id id, ofnode node,
 				struct udevice **devp);
@@ -273,10 +273,11 @@ int uclass_get_device_by_ofnode(enum uclass_id id, ofnode node,
  *
  * @id:		uclass ID to look up
  * @phandle_id: the phandle id to look up
- * @devp: Returns pointer to device (there is only one for each node). NULL if
+ * @devp:	Returns pointer to device (there is only one for each node).
- *	there is no such device.
+ *		NULL if there is no such device.
- * @return 0 if OK, -ENODEV if there is no device match the phandle, other
+ * Return:
- *	-ve on error
+ * 0 if OK, -ENODEV if there is no device match the phandle,
+ * other -ve on error
  */
 int uclass_get_device_by_phandle_id(enum uclass_id id, uint phandle_id,
 				    struct udevice **devp);
@@ -292,7 +293,7 @@ int uclass_get_device_by_phandle_id(enum uclass_id id, uint phandle_id,
  * @parent: Parent device containing the phandle pointer
  * @name: Name of property in the parent device node
  * @devp: Returns pointer to device (there is only one for each node)
- * @return 0 if OK, -ENOENT if there is no @name present in the node, other
+ * Return: 0 if OK, -ENOENT if there is no @name present in the node, other
  * -ve on error
  */
 int uclass_get_device_by_phandle(enum uclass_id id, struct udevice *parent,
@@ -310,7 +311,7 @@ int uclass_get_device_by_phandle(enum uclass_id id, struct udevice *parent,
  * @id: ID to look up
  * @drv: Driver to look for
  * @devp: Returns pointer to the first device with that driver
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
  */
 int uclass_get_device_by_driver(enum uclass_id id, const struct driver *drv,
 				struct udevice **devp);
@@ -327,7 +328,7 @@ int uclass_get_device_by_driver(enum uclass_id id, const struct driver *drv,
  * @devp: Returns pointer to the first device in that uclass if no error
  * occurred, or NULL if there is no first device, or an error occurred with
  * that device.
- * @return 0 if OK (found or not found), other -ve on error
+ * Return: 0 if OK (found or not found), other -ve on error
  */
 int uclass_first_device(enum uclass_id id, struct udevice **devp);
 
@@ -338,7 +339,7 @@ int uclass_first_device(enum uclass_id id, struct udevice **devp);
  *
  * @id: Uclass ID to look up
  * @devp: Returns pointer to the first device in that uclass, or NULL if none
- * @return 0 if found, -ENODEV if not found, other -ve on error
+ * Return: 0 if found, -ENODEV if not found, other -ve on error
  */
 int uclass_first_device_err(enum uclass_id id, struct udevice **devp);
 
@@ -353,7 +354,7 @@ int uclass_first_device_err(enum uclass_id id, struct udevice **devp);
  * @devp: On entry, pointer to device to lookup. On exit, returns pointer
  * to the next device in the uclass if no error occurred, or NULL if there is
  * no next device, or an error occurred with that next device.
- * @return 0 if OK (found or not found), other -ve on error
+ * Return: 0 if OK (found or not found), other -ve on error
  */
 int uclass_next_device(struct udevice **devp);
 
@@ -365,7 +366,7 @@ int uclass_next_device(struct udevice **devp);
  * @devp: On entry, pointer to device to lookup. On exit, returns pointer
  * to the next device in the uclass if no error occurred, or NULL if
  * there is no next device.
- * @return 0 if found, -ENODEV if not found, other -ve on error
+ * Return: 0 if found, -ENODEV if not found, other -ve on error
  */
 int uclass_next_device_err(struct udevice **devp);
 
@@ -380,7 +381,7 @@ int uclass_next_device_err(struct udevice **devp);
  * @id: Uclass ID to look up
  * @devp: Returns pointer to the first device in that uclass, or NULL if there
  * is no first device
- * @return 0 if OK (found or not found), other -ve on error. If an error occurs
+ * Return: 0 if OK (found or not found), other -ve on error. If an error occurs
  * it is still possible to move to the next device.
  */
 int uclass_first_device_check(enum uclass_id id, struct udevice **devp);
@@ -395,7 +396,7 @@ int uclass_first_device_check(enum uclass_id id, struct udevice **devp);
  *
  * @devp: On entry, pointer to device to lookup. On exit, returns pointer
  * to the next device in the uclass if any
- * @return 0 if OK (found or not found), other -ve on error. If an error occurs
+ * Return: 0 if OK (found or not found), other -ve on error. If an error occurs
  * it is still possible to move to the next device.
  */
 int uclass_next_device_check(struct udevice **devp);
@@ -409,7 +410,7 @@ int uclass_next_device_check(struct udevice **devp);
  * @id: Uclass ID to check
  * @driver_data: Driver data to search for
  * @devp: Returns pointer to the first matching device in that uclass, if found
- * @return 0 if found, -ENODEV if not found, other -ve on error
+ * Return: 0 if found, -ENODEV if not found, other -ve on error
  */
 int uclass_first_device_drvdata(enum uclass_id id, ulong driver_data,
 				struct udevice **devp);
@@ -421,7 +422,7 @@ int uclass_first_device_drvdata(enum uclass_id id, ulong driver_data,
  * looking for its ID.
  *
  * @id: uclass ID to look up
- * @return 0 if OK, other -ve on error
+ * Return: 0 if OK, other -ve on error
  */
 int uclass_probe_all(enum uclass_id id);
 
@@ -429,7 +430,7 @@ int uclass_probe_all(enum uclass_id id);
  * uclass_id_count() - Count the number of devices in a uclass
  *
  * @id: uclass ID to look up
- * @return number of devices in that uclass (0 if none)
+ * Return: number of devices in that uclass (0 if none)
  */
 int uclass_id_count(enum uclass_id id);
 
@@ -444,7 +445,7 @@ int uclass_id_count(enum uclass_id id);
  * @id: enum uclass_id ID to use
  * @pos: struct udevice * to hold the current device. Set to NULL when there
  * are no more devices.
- * @uc: temporary uclass variable (struct uclass *)
+ * @uc: temporary uclass variable (``struct uclass *``)
  */
 #define uclass_id_foreach_dev(id, pos, uc) \
 	if (!uclass_get(id, &uc)) \