* which controls the given node.
*
* @np: Node pointer to check
- * @return number of address cells this node uses
+ * Return: number of address cells this node uses
*/
int of_n_addr_cells(const struct device_node *np);
* which controls the given node.
*
* @np: Node pointer to check
- * @return number of size cells this node uses
+ * Return: number of size cells this node uses
*/
int of_n_size_cells(const struct device_node *np);
* This function matches fdt_address_cells().
*
* @np: Node pointer to check
- * @return value of #address-cells property in this node, or 2 if none
+ * Return: value of #address-cells property in this node, or 2 if none
*/
int of_simple_addr_cells(const struct device_node *np);
* This function matches fdt_size_cells().
*
* @np: Node pointer to check
- * @return value of #size-cells property in this node, or 2 if none
+ * Return: value of #size-cells property in this node, or 2 if none
*/
int of_simple_size_cells(const struct device_node *np);
* @np: Pointer to device node holding property
* @name: Name of property
* @lenp: If non-NULL, returns length of property
- * @return pointer to property, or NULL if not found
+ * Return: pointer to property, or NULL if not found
*/
struct property *of_find_property(const struct device_node *np,
const char *name, int *lenp);
* @np: Pointer to device node holding property
* @name: Name of property
* @lenp: If non-NULL, returns length of property
- * @return pointer to property value, or NULL if not found
+ * Return: pointer to property value, or NULL if not found
*/
const void *of_get_property(const struct device_node *np, const char *name,
int *lenp);
* and read all the property with of_get_next_property_by_prop().
*
* @np: Pointer to device node
- * @return pointer to property or NULL if not found
+ * Return: pointer to property or NULL if not found
*/
const struct property *of_get_first_property(const struct device_node *np);
*
* @np: Pointer to device node
* @property: pointer of the current property
- * @return pointer to next property or NULL if not found
+ * Return: pointer to next property or NULL if not found
*/
const struct property *of_get_next_property(const struct device_node *np,
const struct property *property);
*
* Get value for the property identified by node and property pointer.
*
- * @node: node to read
+ * @np: Pointer to device node
* @property: pointer of the property to read
- * @propname: place to property name on success
+ * @name: place to property name on success
* @lenp: place to put length on success
- * @return pointer to property value or NULL if error
+ * Return: pointer to property value or NULL if error
*/
const void *of_get_property_by_prop(const struct device_node *np,
const struct property *property,
/**
* of_device_is_compatible() - Check if the node matches given constraints
- * @device: pointer to node
+ * @np: Pointer to device node
* @compat: required compatible string, NULL or "" for any match
* @type: required device_type value, NULL or "" for any match
* @name: required node name, NULL or "" for any match
* properties of the given @device. A constraints can be skipped by
* passing NULL or an empty string as the constraint.
*
- * @return 0 for no match, and a positive integer on match. The return
+ * Return: 0 for no match, and a positive integer on match. The return
* value is a relative score with larger values indicating better
* matches. The score is weighted for the most specific compatible value
* to get the highest score. Matching type is next, followed by matching
/**
* of_device_is_available() - check if a device is available for use
*
- * @device: Node to check for availability
+ * @np: Pointer to device node to check for availability
*
- * @return true if the status property is absent or set to "okay", false
+ * Return: true if the status property is absent or set to "okay", false
* otherwise
*/
bool of_device_is_available(const struct device_node *np);
/**
* of_get_parent() - Get a node's parent, if any
*
- * @node: Node to check
- * @eturns a node pointer, or NULL if none
+ * @np: Pointer to device node to check
+ * Return: a node pointer, or NULL if none
*/
struct device_node *of_get_parent(const struct device_node *np);
* foo Valid alias
* foo/bar Valid alias + relative path
*
- * @return a node pointer or NULL if not found
+ * Return: a node pointer or NULL if not found
*/
struct device_node *of_find_node_opts_by_path(const char *path,
const char **opts);
* @type: The type string to match "device_type" or NULL to ignore
* @compatible: The string to match to one of the tokens in the device
* "compatible" list.
- * @return node pointer or NULL if not found
+ * Return: node pointer or NULL if not found
*/
struct device_node *of_find_compatible_node(struct device_node *from,
const char *type, const char *compatible);
* @propname: property name to check
* @propval: property value to search for
* @proplen: length of the value in propval
- * @return node pointer or NULL if not found
+ * Return: node pointer or NULL if not found
*/
struct device_node *of_find_node_by_prop_value(struct device_node *from,
const char *propname,
*
* @handle: phandle of the node to find
*
- * @return node pointer, or NULL if not found
+ * Return: node pointer, or NULL if not found
*/
struct device_node *of_find_node_by_phandle(phandle handle);
* @propname: name of the property to be searched.
* @outp: pointer to return value, modified only if return value is 0.
*
- * @return 0 on success, -EINVAL if the property does not exist,
+ * Return: 0 on success, -EINVAL if the property does not exist,
* -ENODATA if property does not have a value, and -EOVERFLOW if the
* property data isn't large enough.
*/
* @index: index of the u32 in the list of values
* @outp: pointer to return value, modified only if return value is 0.
*
- * @return 0 on success, -EINVAL if the property does not exist,
- * -ENODATA if property does not have a value, and -EOVERFLOW if the
- * property data isn't large enough.
+ * Return:
+ * 0 on success, -EINVAL if the property does not exist,
+ * -ENODATA if property does not have a value, and -EOVERFLOW if the
+ * property data isn't large enough.
*/
int of_read_u32_index(const struct device_node *np, const char *propname,
int index, u32 *outp);
* @propname: name of the property to be searched.
* @outp: pointer to return value, modified only if return value is 0.
*
- * @return 0 on success, -EINVAL if the property does not exist,
- * -ENODATA if property does not have a value, and -EOVERFLOW if the
- * property data isn't large enough.
+ * Return:
+ * 0 on success, -EINVAL if the property does not exist,
+ * -ENODATA if property does not have a value, and -EOVERFLOW if the
+ * property data isn't large enough.
*/
int of_read_u64(const struct device_node *np, const char *propname, u64 *outp);
* @propname: name of the property to be searched.
* @out_values: pointer to return value, modified only if return value is 0.
* @sz: number of array elements to read
- * @return 0 on success, -EINVAL if the property does not exist, -ENODATA
- * if property does not have a value, and -EOVERFLOW is longer than sz.
+ * Return:
+ * 0 on success, -EINVAL if the property does not exist, -ENODATA
+ * if property does not have a value, and -EOVERFLOW is longer than sz.
*/
int of_read_u32_array(const struct device_node *np, const char *propname,
u32 *out_values, size_t sz);
* @np: pointer to node containing string list property
* @propname: string list property name
* @string: pointer to string to search for in string list
- * @return 0 on success, -EINVAL if the property does not exist, -ENODATA
- * if property does not have a value, and -EOVERFLOW is longer than sz.
+ * Return:
+ * 0 on success, -EINVAL if the property does not exist, -ENODATA
+ * if property does not have a value, and -EOVERFLOW is longer than sz.
*/
int of_property_match_string(const struct device_node *np, const char *propname,
const char *string);
* @np: device node from which the property value is to be read.
* @propname: name of the property to be searched.
* @index: index of the string in the list of strings
- * @out_string: pointer to null terminated return string, modified only if
+ * @output: pointer to null terminated return string, modified only if
* return value is 0.
*
* Search for a property in a device tree node and retrieve a null
* terminated string value (pointer to data, not a copy) in the list of strings
* contained in that property.
- * Returns 0 on success, -EINVAL if the property does not exist, -ENODATA if
- * property does not have a value, and -EILSEQ if the string is not
- * null-terminated within the length of the property data.
+ *
+ * Return:
+ * 0 on success, -EINVAL if the property does not exist, -ENODATA if
+ * property does not have a value, and -EILSEQ if the string is not
+ * null-terminated within the length of the property data.
*
* The out_string pointer is modified only if a valid string can be decoded.
*/
* @propname: name of the property to be searched.
*
* Search for a property in a device tree node and retrieve the number of null
- * terminated string contain in it. Returns the number of strings on
- * success, -EINVAL if the property does not exist, -ENODATA if property
- * does not have a value, and -EILSEQ if the string is not null-terminated
- * within the length of the property data.
+ * terminated string contain in it.
+ *
+ * Return:
+ * the number of strings on success, -EINVAL if the property does not exist,
+ * -ENODATA if property does not have a value, and -EILSEQ if the string is
+ * not null-terminated within the length of the property data.
*/
static inline int of_property_count_strings(const struct device_node *np,
const char *propname)
* @index: For properties holding a table of phandles, this is the index into
* the table
*
- * Returns the device_node pointer with refcount incremented. Use
- * of_node_put() on it when done.
+ * Return:
+ * the device_node pointer with refcount incremented. Use
+ * of_node_put() on it when done.
*/
struct device_node *of_parse_phandle(const struct device_node *np,
const char *phandle_name, int index);
* @cells_count: Cell count to use if @cells_name is NULL
* @index: index of a phandle to parse out
* @out_args: optional pointer to output arguments structure (will be filled)
- * @return 0 on success (with @out_args filled out if not NULL), -ENOENT if
- * @list_name does not exist, -EINVAL if a phandle was not found,
- * @cells_name could not be found, the arguments were truncated or there
- * were too many arguments.
+ * Return:
+ * 0 on success (with @out_args filled out if not NULL), -ENOENT if
+ * @list_name does not exist, -EINVAL if a phandle was not found,
+ * @cells_name could not be found, the arguments were truncated or there
+ * were too many arguments.
*
* This function is useful to parse lists of phandles and their arguments.
* Returns 0 on success and fills out_args, on error returns appropriate
*
* Example:
*
- * phandle1: node1 {
- * #list-cells = <2>;
- * }
+ * .. code-block::
*
- * phandle2: node2 {
- * #list-cells = <1>;
- * }
- *
- * node3 {
- * list = <&phandle1 1 2 &phandle2 3>;
- * }
+ * phandle1: node1 {
+ * #list-cells = <2>;
+ * };
+ * phandle2: node2 {
+ * #list-cells = <1>;
+ * };
+ * node3 {
+ * list = <&phandle1 1 2 &phandle2 3>;
+ * };
*
* To get a device_node of the `node2' node you may call this:
* of_parse_phandle_with_args(node3, "list", "#list-cells", 1, &args);
* @list_name: property name that contains a list
* @cells_name: property name that specifies phandles' arguments count
* @cells_count: Cell count to use if @cells_name is NULL
- * @return number of phandle found, -ENOENT if
- * @list_name does not exist, -EINVAL if a phandle was not found,
- * @cells_name could not be found, the arguments were truncated or there
- * were too many arguments.
+ * Return:
+ * number of phandle found, -ENOENT if @list_name does not exist,
+ * -EINVAL if a phandle was not found, @cells_name could not be found,
+ * the arguments were truncated or there were too many arguments.
*
* Returns number of phandle found on success, on error returns appropriate
* errno value.
- *
*/
int of_count_phandle_with_args(const struct device_node *np,
const char *list_name, const char *cells_name,
* the lookup table with the properties. It returns the number of alias
* properties found, or an error code in case of failure.
*
- * @return 9 if OK, -ENOMEM if not enough memory
+ * Return: 9 if OK, -ENOMEM if not enough memory
*/
int of_alias_scan(void);
*
* @np: Pointer to the given device_node
* @stem: Alias stem of the given device_node
- * @return alias ID, if found, else -ENODEV
+ * Return: alias ID, if found, else -ENODEV
*/
int of_alias_get_id(const struct device_node *np, const char *stem);
*
* The function travels the lookup table to get the highest alias id for the
* given alias stem.
- * @return alias ID, if found, else -1
+ * Return: alias ID, if found, else -1
*/
int of_alias_get_highest_id(const char *stem);
/**
* of_get_stdout() - Get node to use for stdout
*
- * @return node referred to by stdout-path alias, or NULL if none
+ * Return: node referred to by stdout-path alias, or NULL if none
*/
struct device_node *of_get_stdout(void);
struct resource;
/**
- * ofnode - reference to a device tree node
+ * typedef union ofnode_union ofnode - reference to a device tree node
*
* This union can hold either a straightforward pointer to a struct device_node
* in the live device tree, or an offset within the flat device tree. In the
*
* Thus we can reference nodes in both the live tree (once available) and the
* flat tree (until then). Functions are available to translate between an
- * ofnode and either an offset or a struct device_node *.
+ * ofnode and either an offset or a `struct device_node *`.
*
* The reference can also hold a null offset, in which case the pointer value
* here is NULL. This corresponds to a struct device_node * value of
};
/**
- * ofprop - reference to a property of a device tree node
+ * struct ofprop - reference to a property of a device tree node
*
* This struct hold the reference on one property of one node,
* using struct ofnode and an offset within the flat device tree or either
* This cannot be called if the reference contains an offset.
*
* @node: Reference containing struct device_node * (possibly invalid)
- * @return pointer to device node (can be NULL)
+ * Return: pointer to device node (can be NULL)
*/
static inline const struct device_node *ofnode_to_np(ofnode node)
{
* This cannot be called if the reference contains a node pointer.
*
* @node: Reference containing offset (possibly invalid)
- * @return DT offset (can be -1)
+ * Return: DT offset (can be -1)
*/
static inline int ofnode_to_offset(ofnode node)
{
/**
* ofnode_valid() - check if an ofnode is valid
*
- * @return true if the reference contains a valid ofnode, false if it is NULL
+ * @node: Reference containing offset (possibly invalid)
+ * Return: true if the reference contains a valid ofnode, false if it is NULL
*/
static inline bool ofnode_valid(ofnode node)
{
* offset_to_ofnode() - convert a DT offset to an ofnode
*
* @of_offset: DT offset (either valid, or -1)
- * @return reference to the associated DT offset
+ * Return: reference to the associated DT offset
*/
static inline ofnode offset_to_ofnode(int of_offset)
{
* np_to_ofnode() - convert a node pointer to an ofnode
*
* @np: Live node pointer (can be NULL)
- * @return reference to the associated node pointer
+ * Return: reference to the associated node pointer
*/
static inline ofnode np_to_ofnode(const struct device_node *np)
{
* is valid is not permitted.
*
* @node: reference to check (possibly invalid)
- * @return true if the reference is a live node pointer, false if it is a DT
+ * Return: true if the reference is a live node pointer, false if it is a DT
* offset
*/
static inline bool ofnode_is_np(ofnode node)
/**
* ofnode_equal() - check if two references are equal
*
- * @return true if equal, else false
+ * @ref1: first reference to check (possibly invalid)
+ * @ref2: second reference to check (possibly invalid)
+ * Return: true if equal, else false
*/
static inline bool ofnode_equal(ofnode ref1, ofnode ref2)
{
*
* @node: valid node reference that has to be compared
* @name: name that has to be compared with the node name
- * @return true if matches, false if it doesn't match
+ * Return: true if matches, false if it doesn't match
*/
bool ofnode_name_eq(ofnode node, const char *name);
/**
* ofnode_read_u32() - Read a 32-bit integer from a property
*
- * @ref: valid node reference to read property from
+ * @node: valid node reference to read property from
* @propname: name of the property to read from
* @outp: place to put value (if found)
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
*/
int ofnode_read_u32(ofnode node, const char *propname, u32 *outp);
/**
* ofnode_read_u32_index() - Read a 32-bit integer from a multi-value property
*
- * @ref: valid node reference to read property from
+ * @node: valid node reference to read property from
* @propname: name of the property to read from
* @index: index of the integer to return
* @outp: place to put value (if found)
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
*/
int ofnode_read_u32_index(ofnode node, const char *propname, int index,
u32 *outp);
/**
* ofnode_read_s32() - Read a 32-bit integer from a property
*
- * @ref: valid node reference to read property from
+ * @node: valid node reference to read property from
* @propname: name of the property to read from
* @outp: place to put value (if found)
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
*/
static inline int ofnode_read_s32(ofnode node, const char *propname,
- s32 *out_value)
+ s32 *outp)
{
- return ofnode_read_u32(node, propname, (u32 *)out_value);
+ return ofnode_read_u32(node, propname, (u32 *)outp);
}
/**
* ofnode_read_u32_default() - Read a 32-bit integer from a property
*
- * @ref: valid node reference to read property from
+ * @node: valid node reference to read property from
* @propname: name of the property to read from
* @def: default value to return if the property has no value
- * @return property value, or @def if not found
+ * Return: property value, or @def if not found
*/
-u32 ofnode_read_u32_default(ofnode ref, const char *propname, u32 def);
+u32 ofnode_read_u32_default(ofnode node, const char *propname, u32 def);
/**
* ofnode_read_u32_index_default() - Read a 32-bit integer from a multi-value
* property
*
- * @ref: valid node reference to read property from
+ * @node: valid node reference to read property from
* @propname: name of the property to read from
* @index: index of the integer to return
* @def: default value to return if the property has no value
- * @return property value, or @def if not found
+ * Return: property value, or @def if not found
*/
-u32 ofnode_read_u32_index_default(ofnode ref, const char *propname, int index,
+u32 ofnode_read_u32_index_default(ofnode node, const char *propname, int index,
u32 def);
/**
* ofnode_read_s32_default() - Read a 32-bit integer from a property
*
- * @ref: valid node reference to read property from
+ * @node: valid node reference to read property from
* @propname: name of the property to read from
* @def: default value to return if the property has no value
- * @return property value, or @def if not found
+ * Return: property value, or @def if not found
*/
int ofnode_read_s32_default(ofnode node, const char *propname, s32 def);
* @node: valid node reference to read property from
* @propname: name of the property to read from
* @outp: place to put value (if found)
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
*/
int ofnode_read_u64(ofnode node, const char *propname, u64 *outp);
/**
* ofnode_read_u64_default() - Read a 64-bit integer from a property
*
- * @ref: valid node reference to read property from
+ * @node: valid node reference to read property from
* @propname: name of the property to read from
* @def: default value to return if the property has no value
- * @return property value, or @def if not found
+ * Return: property value, or @def if not found
*/
u64 ofnode_read_u64_default(ofnode node, const char *propname, u64 def);
* @node: valid node reference to read property from
* @propname: name of the property to read
* @sizep: if non-NULL, returns the size of the property, or an error code
- if not found
- * @return property value, or NULL if there is no such property
+ * if not found
+ * Return: property value, or NULL if there is no such property
*/
const void *ofnode_read_prop(ofnode node, const char *propname, int *sizep);
*
* @node: valid node reference to read property from
* @propname: name of the property to read
- * @return string from property value, or NULL if there is no such property
+ * Return: string from property value, or NULL if there is no such property
*/
const char *ofnode_read_string(ofnode node, const char *propname);
* @propname: name of the property to read
* @out_values: pointer to return value, modified only if return value is 0
* @sz: number of array elements to read
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
*
* Search for a property in a device node and read 32-bit value(s) from
* it. Returns 0 on success, -EINVAL if the property does not exist,
*
* @node: valid node reference to read property from
* @propname: name of property to read
- * @return true if property is present (meaning true), false if not present
+ * Return: true if property is present (meaning true), false if not present
*/
bool ofnode_read_bool(ofnode node, const char *propname);
*
* @node: valid reference to parent node
* @subnode_name: name of subnode to find
- * @return reference to subnode (which can be invalid if there is no such
+ * Return: reference to subnode (which can be invalid if there is no such
* subnode)
*/
ofnode ofnode_find_subnode(ofnode node, const char *subnode_name);
* by default.
*
* @node: node to examine
- * @return false (not enabled) or true (enabled)
+ * Return: false (not enabled) or true (enabled)
*/
bool ofnode_is_enabled(ofnode node);
* ofnode_first_subnode() - find the first subnode of a parent node
*
* @node: valid reference to a valid parent node
- * @return reference to the first subnode (which can be invalid if the parent
+ * Return: reference to the first subnode (which can be invalid if the parent
* node has no subnodes)
*/
ofnode ofnode_first_subnode(ofnode node);
* ofnode_next_subnode() - find the next sibling of a subnode
*
* @node: valid reference to previous node (sibling)
- * @return reference to the next subnode (which can be invalid if the node
+ * Return: reference to the next subnode (which can be invalid if the node
* has no more siblings)
*/
ofnode ofnode_next_subnode(ofnode node);
* ofnode_get_parent() - get the ofnode's parent (enclosing ofnode)
*
* @node: valid node to look up
- * @return ofnode reference of the parent node
+ * Return: ofnode reference of the parent node
*/
ofnode ofnode_get_parent(ofnode node);
* ofnode_get_name() - get the name of a node
*
* @node: valid node to look up
- * @return name of node
+ * Return: name of node
*/
const char *ofnode_get_name(ofnode node);
* @node: valid node to look up
* @buf: buffer to write the node path into
* @buflen: buffer size
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
*/
int ofnode_get_path(ofnode node, char *buf, int buflen);
* ofnode_get_by_phandle() - get ofnode from phandle
*
* @phandle: phandle to look up
- * @return ofnode reference to the phandle
+ * Return: ofnode reference to the phandle
*/
ofnode ofnode_get_by_phandle(uint phandle);
*
* @node: node to check
* @propname: property to check
- * @return size of property if present, or -EINVAL if not
+ * Return: size of property if present, or -EINVAL if not
*/
int ofnode_read_size(ofnode node, const char *propname);
* @node: node to read from
* @index: Index of address to read (0 for first)
* @size: Pointer to size of the address
- * @return address, or FDT_ADDR_T_NONE if not present or invalid
+ * Return: address, or FDT_ADDR_T_NONE if not present or invalid
*/
phys_addr_t ofnode_get_addr_size_index(ofnode node, int index,
fdt_size_t *size);
* @node: node to read from
* @index: Index of address to read (0 for first)
* @size: Pointer to size of the address
- * @return address, or FDT_ADDR_T_NONE if not present or invalid
+ * Return: address, or FDT_ADDR_T_NONE if not present or invalid
*/
phys_addr_t ofnode_get_addr_size_index_notrans(ofnode node, int index,
fdt_size_t *size);
*
* @node: node to read from
* @index: Index of address to read (0 for first)
- * @return address, or FDT_ADDR_T_NONE if not present or invalid
+ * Return: address, or FDT_ADDR_T_NONE if not present or invalid
*/
phys_addr_t ofnode_get_addr_index(ofnode node, int index);
* This reads the register address from a node
*
* @node: node to read from
- * @return address, or FDT_ADDR_T_NONE if not present or invalid
+ * Return: address, or FDT_ADDR_T_NONE if not present or invalid
*/
phys_addr_t ofnode_get_addr(ofnode node);
* This reads the register size from a node
*
* @node: node to read from
- * @return size of the address, or FDT_SIZE_T_NONE if not present or invalid
+ * Return: size of the address, or FDT_SIZE_T_NONE if not present or invalid
*/
fdt_size_t ofnode_get_size(ofnode node);
* @propname: name of the property containing the string list
* @string: string to look up in the string list
*
- * @return:
+ * Return:
* the index of the string in the list of strings
* -ENODATA if the property is not found
* -EINVAL on some other error
* @node: node to check
* @propname: name of the property containing the string list
* @index: index of the string to return (cannot be negative)
- * @lenp: return location for the string length or an error code on failure
+ * @outp: return location for the string
*
- * @return:
+ * Return:
* 0 if found or -ve error value if not found
*/
int ofnode_read_string_index(ofnode node, const char *propname, int index,
* ofnode_read_string_count() - find the number of strings in a string list
*
* @node: node to check
- * @propname: name of the property containing the string list
- * @return:
+ * @property: name of the property containing the string list
+ * Return:
* number of strings in the list, or -ve error value if not found
*/
int ofnode_read_string_count(ofnode node, const char *property);
* changed as they point directly into the devicetree property.
*
* @node: node to check
+ * @property: name of the property containing the string list
* @listp: returns an allocated, NULL-terminated list of strings if the return
* value is > 0, else is set to NULL
- * @return number of strings in list, 0 if none, -ENOMEM if out of memory,
- * -EINVAL if no such property, -EENODATA if property is empty
- * @return: NULL-terminated list of strings (NULL if no property or empty)
+ * Return:
+ * number of strings in list, 0 if none, -ENOMEM if out of memory,
+ * -EINVAL if no such property, -EENODATA if property is empty
*/
int ofnode_read_string_list(ofnode node, const char *property,
const char ***listp);
*
* Example:
*
- * phandle1: node1 {
- * #list-cells = <2>;
- * }
- *
- * phandle2: node2 {
- * #list-cells = <1>;
- * }
+ * .. code-block::
*
- * node3 {
- * list = <&phandle1 1 2 &phandle2 3>;
- * }
+ * phandle1: node1 {
+ * #list-cells = <2>;
+ * };
+ * phandle2: node2 {
+ * #list-cells = <1>;
+ * };
+ * node3 {
+ * list = <&phandle1 1 2 &phandle2 3>;
+ * };
*
* To get a device_node of the `node2' node you may call this:
* ofnode_parse_phandle_with_args(node3, "list", "#list-cells", 0, 1, &args);
* @node: device tree node containing a list
* @list_name: property name that contains a list
* @cells_name: property name that specifies phandles' arguments count
- * @cells_count: Cell count to use if @cells_name is NULL
+ * @cell_count: Cell count to use if @cells_name is NULL
* @index: index of a phandle to parse out
* @out_args: optional pointer to output arguments structure (will be filled)
- * @return 0 on success (with @out_args filled out if not NULL), -ENOENT if
- * @list_name does not exist, -EINVAL if a phandle was not found,
- * @cells_name could not be found, the arguments were truncated or there
- * were too many arguments.
+ * Return:
+ * 0 on success (with @out_args filled out if not NULL), -ENOENT if
+ * @list_name does not exist, -EINVAL if a phandle was not found,
+ * @cells_name could not be found, the arguments were truncated or there
+ * were too many arguments.
*/
int ofnode_parse_phandle_with_args(ofnode node, const char *list_name,
const char *cells_name, int cell_count,
* @node: device tree node containing a list
* @list_name: property name that contains a list
* @cells_name: property name that specifies phandles' arguments count
- * @cells_count: Cell count to use if @cells_name is NULL
- * @return number of phandle on success, -ENOENT if @list_name does not
- * exist, -EINVAL if a phandle was not found, @cells_name could not
- * be found.
+ * @cell_count: Cell count to use if @cells_name is NULL
+ * Return:
+ * number of phandle on success, -ENOENT if @list_name does not exist,
+ * -EINVAL if a phandle was not found, @cells_name could not be found.
*/
int ofnode_count_phandle_with_args(ofnode node, const char *list_name,
const char *cells_name, int cell_count);
* ofnode_path() - find a node by full path
*
* @path: Full path to node, e.g. "/bus/spi@1"
- * @return reference to the node found. Use ofnode_valid() to check if it exists
+ * Return: reference to the node found. Use ofnode_valid() to check if it exists
*/
ofnode ofnode_path(const char *path);
* This looks for a property within the /chosen node and returns its value
*
* @propname: Property name to look for
- * @sizep: Returns size of property, or FDT_ERR_... error code if function
+ * @sizep: Returns size of property, or `FDT_ERR_...` error code if function
* returns NULL
- * @return property value if found, else NULL
+ * Return: property value if found, else NULL
*/
const void *ofnode_read_chosen_prop(const char *propname, int *sizep);
* checking that it is a valid nul-terminated string
*
* @propname: Property name to look for
- * @return string value if found, else NULL
+ * Return: string value if found, else NULL
*/
const char *ofnode_read_chosen_string(const char *propname);
* This looks up a named property in the chosen node and uses that as a path to
* look up a code.
*
- * @return the referenced node if present, else ofnode_null()
+ * @propname: Property name to look for
+ * Return: the referenced node if present, else ofnode_null()
*/
ofnode ofnode_get_chosen_node(const char *propname);
* This looks for a property within the /aliases node and returns its value
*
* @propname: Property name to look for
- * @sizep: Returns size of property, or FDT_ERR_... error code if function
+ * @sizep: Returns size of property, or `FDT_ERR_...` error code if function
* returns NULL
- * @return property value if found, else NULL
+ * Return: property value if found, else NULL
*/
const void *ofnode_read_aliases_prop(const char *propname, int *sizep);
* This looks up a named property in the aliases node and uses that as a path to
* look up a code.
*
- * @return the referenced node if present, else ofnode_null()
+ * @propname: Property name to look for
+ * Return: the referenced node if present, else ofnode_null()
*/
ofnode ofnode_get_aliases_node(const char *propname);
* See doc/device-tree-bindings/video/display-timing.txt for binding
* information.
*
- * @node 'display-timing' node containing the timing subnodes
- * @index Index number to read (0=first timing subnode)
- * @config Place to put timings
- * @return 0 if OK, -FDT_ERR_NOTFOUND if not found
+ * @node: 'display-timing' node containing the timing subnodes
+ * @index: Index number to read (0=first timing subnode)
+ * @config: Place to put timings
+ * Return: 0 if OK, -FDT_ERR_NOTFOUND if not found
*/
int ofnode_decode_display_timing(ofnode node, int index,
struct display_timing *config);
* @node: node to read
* @propname: property to read
* @lenp: place to put length on success
- * @return pointer to property, or NULL if not found
+ * Return: pointer to property, or NULL if not found
*/
const void *ofnode_get_property(ofnode node, const char *propname, int *lenp);
*
* @node: node to read
* @prop: place to put argument reference
- * @return 0 if OK, -ve on error. -FDT_ERR_NOTFOUND if not found
+ * Return: 0 if OK, -ve on error. -FDT_ERR_NOTFOUND if not found
*/
int ofnode_get_first_property(ofnode node, struct ofprop *prop);
* and read all the property with ofnode_get_property_by_prop().
*
* @prop: reference of current argument and place to put reference of next one
- * @return 0 if OK, -ve on error. -FDT_ERR_NOTFOUND if not found
+ * Return: 0 if OK, -ve on error. -FDT_ERR_NOTFOUND if not found
*/
int ofnode_get_next_property(struct ofprop *prop);
* @prop: reference on property
* @propname: If non-NULL, place to property name on success,
* @lenp: If non-NULL, place to put length on success
- * @return 0 if OK, -ve on error. -FDT_ERR_NOTFOUND if not found
+ * Return: 0 if OK, -ve on error. -FDT_ERR_NOTFOUND if not found
*/
const void *ofnode_get_property_by_prop(const struct ofprop *prop,
const char **propname, int *lenp);
* ofnode_is_available() - check if a node is marked available
*
* @node: node to check
- * @return true if node's 'status' property is "okay" (or is missing)
+ * Return: true if node's 'status' property is "okay" (or is missing)
*/
bool ofnode_is_available(ofnode node);
* @node: node to read from
* @propname: property to read
* @sizep: place to put size value (on success)
- * @return address value, or FDT_ADDR_T_NONE on error
+ * Return: address value, or FDT_ADDR_T_NONE on error
*/
phys_addr_t ofnode_get_addr_size(ofnode node, const char *propname,
phys_size_t *sizep);
* for the array (count bytes). It may have more, but this will be ignored.
* The data is not copied.
*
- * @node node to examine
- * @propname name of property to find
- * @sz number of array elements
- * @return pointer to byte array if found, or NULL if the property is not
- * found or there is not enough data
+ * @node: node to examine
+ * @propname: name of property to find
+ * @sz: number of array elements
+ * Return:
+ * pointer to byte array if found, or NULL if the property is not found or
+ * there is not enough data
*/
const uint8_t *ofnode_read_u8_array_ptr(ofnode node, const char *propname,
size_t sz);
* corresponds to the given type in the form of fdt_pci_addr.
* The property must hold one fdt_pci_addr with a lengh.
*
- * @node node to examine
- * @type pci address type (FDT_PCI_SPACE_xxx)
- * @propname name of property to find
- * @addr returns pci address in the form of fdt_pci_addr
- * @return 0 if ok, -ENOENT if the property did not exist, -EINVAL if the
- * format of the property was invalid, -ENXIO if the requested
- * address type was not found
+ * @node: node to examine
+ * @type: pci address type (FDT_PCI_SPACE_xxx)
+ * @propname: name of property to find
+ * @addr: returns pci address in the form of fdt_pci_addr
+ * Return:
+ * 0 if ok, -ENOENT if the property did not exist, -EINVAL if the
+ * format of the property was invalid, -ENXIO if the requested
+ * address type was not found
*/
int ofnode_read_pci_addr(ofnode node, enum fdt_pci_space type,
const char *propname, struct fdt_pci_addr *addr);
* Look at the compatible property of a device node that represents a PCI
* device and extract pci vendor id and device id from it.
*
- * @param node node to examine
- * @param vendor vendor id of the pci device
- * @param device device id of the pci device
- * @return 0 if ok, negative on error
+ * @node: node to examine
+ * @vendor: vendor id of the pci device
+ * @device: device id of the pci device
+ * Return: 0 if ok, negative on error
*/
int ofnode_read_pci_vendev(ofnode node, u16 *vendor, u16 *device);
* which controls the given node.
*
* @node: Node to check
- * @return number of address cells this node uses
+ * Return: number of address cells this node uses
*/
int ofnode_read_addr_cells(ofnode node);
* which controls the given node.
*
* @node: Node to check
- * @return number of size cells this node uses
+ * Return: number of size cells this node uses
*/
int ofnode_read_size_cells(ofnode node);
*
* This function matches fdt_address_cells().
*
- * @np: Node pointer to check
- * @return value of #address-cells property in this node, or 2 if none
+ * @node: Node to check
+ * Return: value of #address-cells property in this node, or 2 if none
*/
int ofnode_read_simple_addr_cells(ofnode node);
*
* This function matches fdt_size_cells().
*
- * @np: Node pointer to check
- * @return value of #size-cells property in this node, or 2 if none
+ * @node: Node to check
+ * Return: value of #size-cells property in this node, or 2 if none
*/
int ofnode_read_simple_size_cells(ofnode node);
* There are 4 settings currently in use
* - u-boot,dm-pre-proper: U-Boot proper pre-relocation only
* - u-boot,dm-pre-reloc: legacy and indicates any of TPL or SPL
- * Existing platforms only use it to indicate nodes needed in
- * SPL. Should probably be replaced by u-boot,dm-spl for
- * new platforms.
+ * Existing platforms only use it to indicate nodes needed in
+ * SPL. Should probably be replaced by u-boot,dm-spl for new platforms.
* - u-boot,dm-spl: SPL and U-Boot pre-relocation
* - u-boot,dm-tpl: TPL and U-Boot pre-relocation
*
* @node: node to check
- * @return true if node is needed in SPL/TL, false otherwise
+ * Return: true if node is needed in SPL/TL, false otherwise
*/
bool ofnode_pre_reloc(ofnode node);
* @node: Node to read from
* @index: Index of resource to read (0 = first)
* @res: Returns resource that was read, on success
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
*/
int ofnode_read_resource(ofnode node, uint index, struct resource *res);
* @node: Node to read from
* @name: Name of resource to read
* @res: Returns resource that was read, on success
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
*/
int ofnode_read_resource_byname(ofnode node, const char *name,
struct resource *res);
*
* @from: ofnode to start from (use ofnode_null() to start at the beginning)
* @compat: Compatible string to match
- * @return ofnode found, or ofnode_null() if none
+ * Return: ofnode found, or ofnode_null() if none
*/
ofnode ofnode_by_compatible(ofnode from, const char *compat);
* @propval and a length @proplen.
*
* @from: ofnode to start from (use ofnode_null() to start at the
- * beginning) @propname: property name to check @propval: property value to
- * search for @proplen: length of the value in propval @return ofnode
- * found, or ofnode_null() if none
+ * beginning)
+ * @propname: property name to check
+ * @propval: property value to search for
+ * @proplen: length of the value in propval
+ * Return: ofnode found, or ofnode_null() if none
*/
ofnode ofnode_by_prop_value(ofnode from, const char *propname,
const void *propval, int proplen);
* @node: child node (ofnode, lvalue)
* @parent: parent node (ofnode)
*
- * This is a wrapper around a for loop and is used like so:
+ * This is a wrapper around a for loop and is used like so::
*
- * ofnode node;
- *
- * ofnode_for_each_subnode(node, parent) {
- * Use node
- * ...
- * }
+ * ofnode node;
+ * ofnode_for_each_subnode(node, parent) {
+ * Use node
+ * ...
+ * }
*
* Note that this is implemented as a macro and @node is used as
* iterator in the loop. The parent variable can be a constant or even a
* @node: child node (ofnode, lvalue)
* @compat: compatible string to match
*
- * This is a wrapper around a for loop and is used like so:
- *
- * ofnode node;
+ * This is a wrapper around a for loop and is used like so::
*
- * ofnode_for_each_compatible_node(node, parent, compatible) {
- * Use node
- * ...
- * }
+ * ofnode node;
+ * ofnode_for_each_compatible_node(node, parent, compatible) {
+ * Use node
+ * ...
+ * }
*
* Note that this is implemented as a macro and @node is used as
* iterator in the loop.
/**
* ofnode_get_child_count() - get the child count of a ofnode
*
- * @node: valid node to get its child count
- * @return the number of subnodes
+ * @parent: valid node to get its child count
+ * Return: the number of subnodes
*/
int ofnode_get_child_count(ofnode parent);
* function walks up the tree and applies the various bus mappings along the
* way.
*
- * @ofnode: Device tree node giving the context in which to translate the
- * address
+ * @node: Device tree node giving the context in which to translate the address
* @in_addr: pointer to the address to translate
- * @return the translated address; OF_BAD_ADDR on error
+ * Return: the translated address; OF_BAD_ADDR on error
*/
u64 ofnode_translate_address(ofnode node, const fdt32_t *in_addr);
* This function walks up the tree and applies the various bus mappings along
* the way.
*
- * @ofnode: Device tree node giving the context in which to translate the
- * DMA address
+ * @node: Device tree node giving the context in which to translate the
+ * DMA address
* @in_addr: pointer to the DMA address to translate
- * @return the translated DMA address; OF_BAD_ADDR on error
+ * Return: the translated DMA address; OF_BAD_ADDR on error
*/
u64 ofnode_translate_dma_address(ofnode node, const fdt32_t *in_addr);
* Get DMA ranges for a specifc node, this is useful to perform bus->cpu and
* cpu->bus address translations
*
- * @param blob Pointer to device tree blob
- * @param node_offset Node DT offset
- * @param cpu Pointer to variable storing the range's cpu address
- * @param bus Pointer to variable storing the range's bus address
- * @param size Pointer to variable storing the range's size
- * @return translated DMA address or OF_BAD_ADDR on error
+ * @node: Device tree node
+ * @cpu: Pointer to variable storing the range's cpu address
+ * @bus: Pointer to variable storing the range's bus address
+ * @size: Pointer to variable storing the range's size
+ * Return: translated DMA address or OF_BAD_ADDR on error
*/
int ofnode_get_dma_range(ofnode node, phys_addr_t *cpu, dma_addr_t *bus,
u64 *size);
*
* @node: Device tree node for which compatible needs to be verified.
* @compat: Compatible string which needs to verified in the given node.
- * @return true if OK, false if the compatible is not found
+ * Return: true if OK, false if the compatible is not found
*/
int ofnode_device_is_compatible(ofnode node, const char *compat);
* @len: The length of the new value of the property
* @value: The new value of the property (must be valid prior to calling
* the function)
- * @return 0 if successful, -ve on error
+ * Return: 0 if successful, -ve on error
*/
int ofnode_write_prop(ofnode node, const char *propname, int len,
const void *value);
* @propname: The name of the string property to set
* @value: The new value of the string property (must be valid prior to
* calling the function)
- * @return 0 if successful, -ve on error
+ * Return: 0 if successful, -ve on error
*/
int ofnode_write_string(ofnode node, const char *propname, const char *value);
* @node: The node to enable
* @value: Flag that tells the function to either disable or enable the
* node
- * @return 0 if successful, -ve on error
+ * Return: 0 if successful, -ve on error
*/
int ofnode_set_enabled(ofnode node, bool value);
*
* See doc/config.txt for bindings
*
- * @prop_name property name to look up
- * @return true, if it exists, false if not
+ * @prop_name: property name to look up
+ * Return: true, if it exists, false if not
*/
bool ofnode_conf_read_bool(const char *prop_name);
*
* @prop_name: property name to look up
* @default_val: default value to return if the property is not found
- * @return integer value, if found, or @default_val if not
+ * Return: integer value, if found, or @default_val if not
*/
int ofnode_conf_read_int(const char *prop_name, int default_val);
* See doc/config.txt for bindings
*
* @prop_name: property name to look up
- * @return string value, if found, or NULL if not
+ * Return: string value, if found, or NULL if not
*/
const char *ofnode_conf_read_str(const char *prop_name);
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