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| author | Rafał Miłecki <rafal@milecki.pl> | 2023-01-07 16:59:14 +0100 |
|---|---|---|
| committer | Rafał Miłecki <rafal@milecki.pl> | 2023-01-07 17:45:17 +0100 |
| commit | 11759a5bf3c62846ded3d8946322802d41ac8984 (patch) | |
| tree | 259bc8ffb69f675df951a61bd4f5081651367697 /target/linux/generic | |
| parent | 98b09ba250d3f9e690e26ea65e9bbdcc2dc7d26d (diff) | |
| download | upstream-11759a5bf3c62846ded3d8946322802d41ac8984.tar.gz upstream-11759a5bf3c62846ded3d8946322802d41ac8984.tar.bz2 upstream-11759a5bf3c62846ded3d8946322802d41ac8984.zip | |
kernel: backport of changes & helpers
This code is required for upcoming NVMEM changes.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Diffstat (limited to 'target/linux/generic')
16 files changed, 2405 insertions, 3 deletions
diff --git a/target/linux/generic/backport-5.10/732-v5.13-0003-of-base-Fix-some-formatting-issues-and-provide-missi.patch b/target/linux/generic/backport-5.10/732-v5.13-0003-of-base-Fix-some-formatting-issues-and-provide-missi.patch new file mode 100644 index 0000000000..33808f88a3 --- /dev/null +++ b/target/linux/generic/backport-5.10/732-v5.13-0003-of-base-Fix-some-formatting-issues-and-provide-missi.patch @@ -0,0 +1,95 @@ +From 3637d49e11219512920aca8b8ccd0994be33fa8b Mon Sep 17 00:00:00 2001 +From: Lee Jones <lee.jones@linaro.org> +Date: Thu, 18 Mar 2021 10:40:30 +0000 +Subject: [PATCH] of: base: Fix some formatting issues and provide missing + descriptions + +Fixes the following W=1 kernel build warning(s): + + drivers/of/base.c:315: warning: Function parameter or member 'cpun' not described in '__of_find_n_match_cpu_property' + drivers/of/base.c:315: warning: Function parameter or member 'prop_name' not described in '__of_find_n_match_cpu_property' + drivers/of/base.c:315: warning: Function parameter or member 'cpu' not described in '__of_find_n_match_cpu_property' + drivers/of/base.c:315: warning: Function parameter or member 'thread' not described in '__of_find_n_match_cpu_property' + drivers/of/base.c:315: warning: expecting prototype for property holds the physical id of the(). Prototype was for __of_find_n_match_cpu_property() instead + drivers/of/base.c:1139: warning: Function parameter or member 'match' not described in 'of_find_matching_node_and_match' + drivers/of/base.c:1779: warning: Function parameter or member 'np' not described in '__of_add_property' + drivers/of/base.c:1779: warning: Function parameter or member 'prop' not described in '__of_add_property' + drivers/of/base.c:1800: warning: Function parameter or member 'np' not described in 'of_add_property' + drivers/of/base.c:1800: warning: Function parameter or member 'prop' not described in 'of_add_property' + drivers/of/base.c:1849: warning: Function parameter or member 'np' not described in 'of_remove_property' + drivers/of/base.c:1849: warning: Function parameter or member 'prop' not described in 'of_remove_property' + drivers/of/base.c:2137: warning: Function parameter or member 'dn' not described in 'of_console_check' + drivers/of/base.c:2137: warning: Function parameter or member 'name' not described in 'of_console_check' + drivers/of/base.c:2137: warning: Function parameter or member 'index' not described in 'of_console_check' + +Cc: Rob Herring <robh+dt@kernel.org> +Cc: Frank Rowand <frowand.list@gmail.com> +Cc: "David S. Miller" <davem@davemloft.net> +Cc: devicetree@vger.kernel.org +Signed-off-by: Lee Jones <lee.jones@linaro.org> +Signed-off-by: Rob Herring <robh@kernel.org> +Link: https://lore.kernel.org/r/20210318104036.3175910-5-lee.jones@linaro.org +--- + drivers/of/base.c | 16 +++++++++++----- + 1 file changed, 11 insertions(+), 5 deletions(-) + +--- a/drivers/of/base.c ++++ b/drivers/of/base.c +@@ -305,7 +305,7 @@ bool __weak arch_match_cpu_phys_id(int c + return (u32)phys_id == cpu; + } + +-/** ++/* + * Checks if the given "prop_name" property holds the physical id of the + * core/thread corresponding to the logical cpu 'cpu'. If 'thread' is not + * NULL, local thread number within the core is returned in it. +@@ -1128,7 +1128,7 @@ EXPORT_SYMBOL(of_match_node); + * will; typically, you pass what the previous call + * returned. of_node_put() will be called on it + * @matches: array of of device match structures to search in +- * @match Updated to point at the matches entry which matched ++ * @match: Updated to point at the matches entry which matched + * + * Returns a node pointer with refcount incremented, use + * of_node_put() on it when done. +@@ -1779,6 +1779,8 @@ EXPORT_SYMBOL(of_count_phandle_with_args + + /** + * __of_add_property - Add a property to a node without lock operations ++ * @np: Caller's Device Node ++ * @prob: Property to add + */ + int __of_add_property(struct device_node *np, struct property *prop) + { +@@ -1800,6 +1802,8 @@ int __of_add_property(struct device_node + + /** + * of_add_property - Add a property to a node ++ * @np: Caller's Device Node ++ * @prob: Property to add + */ + int of_add_property(struct device_node *np, struct property *prop) + { +@@ -1844,6 +1848,8 @@ int __of_remove_property(struct device_n + + /** + * of_remove_property - Remove a property from a node. ++ * @np: Caller's Device Node ++ * @prob: Property to remove + * + * Note that we don't actually remove it, since we have given out + * who-knows-how-many pointers to the data using get-property. +@@ -2130,9 +2136,9 @@ EXPORT_SYMBOL_GPL(of_alias_get_highest_i + + /** + * of_console_check() - Test and setup console for DT setup +- * @dn - Pointer to device node +- * @name - Name to use for preferred console without index. ex. "ttyS" +- * @index - Index to use for preferred console. ++ * @dn: Pointer to device node ++ * @name: Name to use for preferred console without index. ex. "ttyS" ++ * @index: Index to use for preferred console. + * + * Check if the given device node matches the stdout-path property in the + * /chosen node. If it does then register it as the preferred console and return diff --git a/target/linux/generic/backport-5.10/732-v5.13-0005-of-Fix-kerneldoc-output-formatting.patch b/target/linux/generic/backport-5.10/732-v5.13-0005-of-Fix-kerneldoc-output-formatting.patch new file mode 100644 index 0000000000..bda03b9c4c --- /dev/null +++ b/target/linux/generic/backport-5.10/732-v5.13-0005-of-Fix-kerneldoc-output-formatting.patch @@ -0,0 +1,489 @@ +From 62f026f082e4d762a47b43ea693b38f025122332 Mon Sep 17 00:00:00 2001 +From: Rob Herring <robh@kernel.org> +Date: Fri, 26 Mar 2021 13:26:06 -0600 +Subject: [PATCH] of: Fix kerneldoc output formatting + +The indentation of the kerneldoc comments affects the output formatting. +Leading tabs in particular don't work, sections need to be indented +under the section header, and several code blocks are reformatted. + +Cc: Frank Rowand <frowand.list@gmail.com> +Cc: Mauro Carvalho Chehab <mchehab@kernel.org> +Signed-off-by: Rob Herring <robh@kernel.org> +Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> +Link: https://lore.kernel.org/r/20210326192606.3702739-1-robh@kernel.org +--- + drivers/of/base.c | 275 +++++++++++++++++++++++----------------------- + drivers/of/fdt.c | 9 +- + 2 files changed, 141 insertions(+), 143 deletions(-) + +--- a/drivers/of/base.c ++++ b/drivers/of/base.c +@@ -651,11 +651,11 @@ bool of_device_is_big_endian(const struc + EXPORT_SYMBOL(of_device_is_big_endian); + + /** +- * of_get_parent - Get a node's parent if any +- * @node: Node to get parent ++ * of_get_parent - Get a node's parent if any ++ * @node: Node to get parent + * +- * Returns a node pointer with refcount incremented, use +- * of_node_put() on it when done. ++ * Return: A node pointer with refcount incremented, use ++ * of_node_put() on it when done. + */ + struct device_node *of_get_parent(const struct device_node *node) + { +@@ -673,15 +673,15 @@ struct device_node *of_get_parent(const + EXPORT_SYMBOL(of_get_parent); + + /** +- * of_get_next_parent - Iterate to a node's parent +- * @node: Node to get parent of ++ * of_get_next_parent - Iterate to a node's parent ++ * @node: Node to get parent of + * +- * This is like of_get_parent() except that it drops the +- * refcount on the passed node, making it suitable for iterating +- * through a node's parents. ++ * This is like of_get_parent() except that it drops the ++ * refcount on the passed node, making it suitable for iterating ++ * through a node's parents. + * +- * Returns a node pointer with refcount incremented, use +- * of_node_put() on it when done. ++ * Return: A node pointer with refcount incremented, use ++ * of_node_put() on it when done. + */ + struct device_node *of_get_next_parent(struct device_node *node) + { +@@ -719,13 +719,13 @@ static struct device_node *__of_get_next + child = __of_get_next_child(parent, child)) + + /** +- * of_get_next_child - Iterate a node childs +- * @node: parent node +- * @prev: previous child of the parent node, or NULL to get first +- * +- * Returns a node pointer with refcount incremented, use of_node_put() on +- * it when done. Returns NULL when prev is the last child. Decrements the +- * refcount of prev. ++ * of_get_next_child - Iterate a node childs ++ * @node: parent node ++ * @prev: previous child of the parent node, or NULL to get first ++ * ++ * Return: A node pointer with refcount incremented, use of_node_put() on ++ * it when done. Returns NULL when prev is the last child. Decrements the ++ * refcount of prev. + */ + struct device_node *of_get_next_child(const struct device_node *node, + struct device_node *prev) +@@ -741,12 +741,12 @@ struct device_node *of_get_next_child(co + EXPORT_SYMBOL(of_get_next_child); + + /** +- * of_get_next_available_child - Find the next available child node +- * @node: parent node +- * @prev: previous child of the parent node, or NULL to get first ++ * of_get_next_available_child - Find the next available child node ++ * @node: parent node ++ * @prev: previous child of the parent node, or NULL to get first + * +- * This function is like of_get_next_child(), except that it +- * automatically skips any disabled nodes (i.e. status = "disabled"). ++ * This function is like of_get_next_child(), except that it ++ * automatically skips any disabled nodes (i.e. status = "disabled"). + */ + struct device_node *of_get_next_available_child(const struct device_node *node, + struct device_node *prev) +@@ -772,12 +772,12 @@ struct device_node *of_get_next_availabl + EXPORT_SYMBOL(of_get_next_available_child); + + /** +- * of_get_next_cpu_node - Iterate on cpu nodes +- * @prev: previous child of the /cpus node, or NULL to get first ++ * of_get_next_cpu_node - Iterate on cpu nodes ++ * @prev: previous child of the /cpus node, or NULL to get first + * +- * Returns a cpu node pointer with refcount incremented, use of_node_put() +- * on it when done. Returns NULL when prev is the last child. Decrements +- * the refcount of prev. ++ * Return: A cpu node pointer with refcount incremented, use of_node_put() ++ * on it when done. Returns NULL when prev is the last child. Decrements ++ * the refcount of prev. + */ + struct device_node *of_get_next_cpu_node(struct device_node *prev) + { +@@ -834,15 +834,15 @@ struct device_node *of_get_compatible_ch + EXPORT_SYMBOL(of_get_compatible_child); + + /** +- * of_get_child_by_name - Find the child node by name for a given parent +- * @node: parent node +- * @name: child name to look for. +- * +- * This function looks for child node for given matching name +- * +- * Returns a node pointer if found, with refcount incremented, use +- * of_node_put() on it when done. +- * Returns NULL if node is not found. ++ * of_get_child_by_name - Find the child node by name for a given parent ++ * @node: parent node ++ * @name: child name to look for. ++ * ++ * This function looks for child node for given matching name ++ * ++ * Return: A node pointer if found, with refcount incremented, use ++ * of_node_put() on it when done. ++ * Returns NULL if node is not found. + */ + struct device_node *of_get_child_by_name(const struct device_node *node, + const char *name) +@@ -893,22 +893,22 @@ struct device_node *__of_find_node_by_fu + } + + /** +- * of_find_node_opts_by_path - Find a node matching a full OF path +- * @path: Either the full path to match, or if the path does not +- * start with '/', the name of a property of the /aliases +- * node (an alias). In the case of an alias, the node +- * matching the alias' value will be returned. +- * @opts: Address of a pointer into which to store the start of +- * an options string appended to the end of the path with +- * a ':' separator. +- * +- * Valid paths: +- * /foo/bar Full path +- * foo Valid alias +- * foo/bar Valid alias + relative path ++ * of_find_node_opts_by_path - Find a node matching a full OF path ++ * @path: Either the full path to match, or if the path does not ++ * start with '/', the name of a property of the /aliases ++ * node (an alias). In the case of an alias, the node ++ * matching the alias' value will be returned. ++ * @opts: Address of a pointer into which to store the start of ++ * an options string appended to the end of the path with ++ * a ':' separator. ++ * ++ * Valid paths: ++ * * /foo/bar Full path ++ * * foo Valid alias ++ * * foo/bar Valid alias + relative path + * +- * Returns a node pointer with refcount incremented, use +- * of_node_put() on it when done. ++ * Return: A node pointer with refcount incremented, use ++ * of_node_put() on it when done. + */ + struct device_node *of_find_node_opts_by_path(const char *path, const char **opts) + { +@@ -958,15 +958,15 @@ struct device_node *of_find_node_opts_by + EXPORT_SYMBOL(of_find_node_opts_by_path); + + /** +- * of_find_node_by_name - Find a node by its "name" property +- * @from: The node to start searching from or NULL; the node ++ * of_find_node_by_name - Find a node by its "name" property ++ * @from: The node to start searching from or NULL; the node + * you pass will not be searched, only the next one + * will. Typically, you pass what the previous call + * returned. of_node_put() will be called on @from. +- * @name: The name string to match against ++ * @name: The name string to match against + * +- * Returns a node pointer with refcount incremented, use +- * of_node_put() on it when done. ++ * Return: A node pointer with refcount incremented, use ++ * of_node_put() on it when done. + */ + struct device_node *of_find_node_by_name(struct device_node *from, + const char *name) +@@ -985,16 +985,16 @@ struct device_node *of_find_node_by_name + EXPORT_SYMBOL(of_find_node_by_name); + + /** +- * of_find_node_by_type - Find a node by its "device_type" property +- * @from: The node to start searching from, or NULL to start searching ++ * of_find_node_by_type - Find a node by its "device_type" property ++ * @from: The node to start searching from, or NULL to start searching + * the entire device tree. The node you pass will not be + * searched, only the next one will; typically, you pass + * what the previous call returned. of_node_put() will be + * called on from for you. +- * @type: The type string to match against ++ * @type: The type string to match against + * +- * Returns a node pointer with refcount incremented, use +- * of_node_put() on it when done. ++ * Return: A node pointer with refcount incremented, use ++ * of_node_put() on it when done. + */ + struct device_node *of_find_node_by_type(struct device_node *from, + const char *type) +@@ -1013,18 +1013,18 @@ struct device_node *of_find_node_by_type + EXPORT_SYMBOL(of_find_node_by_type); + + /** +- * of_find_compatible_node - Find a node based on type and one of the ++ * of_find_compatible_node - Find a node based on type and one of the + * tokens in its "compatible" property +- * @from: The node to start searching from or NULL, the node +- * you pass will not be searched, only the next one +- * will; typically, you pass what the previous call +- * returned. of_node_put() will be called on it +- * @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. ++ * @from: The node to start searching from or NULL, the node ++ * you pass will not be searched, only the next one ++ * will; typically, you pass what the previous call ++ * returned. of_node_put() will be called on it ++ * @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. + * +- * Returns a node pointer with refcount incremented, use +- * of_node_put() on it when done. ++ * Return: A node pointer with refcount incremented, use ++ * of_node_put() on it when done. + */ + struct device_node *of_find_compatible_node(struct device_node *from, + const char *type, const char *compatible) +@@ -1044,16 +1044,16 @@ struct device_node *of_find_compatible_n + EXPORT_SYMBOL(of_find_compatible_node); + + /** +- * of_find_node_with_property - Find a node which has a property with +- * the given name. +- * @from: The node to start searching from or NULL, the node +- * you pass will not be searched, only the next one +- * will; typically, you pass what the previous call +- * returned. of_node_put() will be called on it +- * @prop_name: The name of the property to look for. ++ * of_find_node_with_property - Find a node which has a property with ++ * the given name. ++ * @from: The node to start searching from or NULL, the node ++ * you pass will not be searched, only the next one ++ * will; typically, you pass what the previous call ++ * returned. of_node_put() will be called on it ++ * @prop_name: The name of the property to look for. + * +- * Returns a node pointer with refcount incremented, use +- * of_node_put() on it when done. ++ * Return: A node pointer with refcount incremented, use ++ * of_node_put() on it when done. + */ + struct device_node *of_find_node_with_property(struct device_node *from, + const char *prop_name) +@@ -1102,10 +1102,10 @@ const struct of_device_id *__of_match_no + + /** + * of_match_node - Tell if a device_node has a matching of_match structure +- * @matches: array of of device match structures to search in +- * @node: the of device structure to match against ++ * @matches: array of of device match structures to search in ++ * @node: the of device structure to match against + * +- * Low level utility function used by device matching. ++ * Low level utility function used by device matching. + */ + const struct of_device_id *of_match_node(const struct of_device_id *matches, + const struct device_node *node) +@@ -1121,17 +1121,17 @@ const struct of_device_id *of_match_node + EXPORT_SYMBOL(of_match_node); + + /** +- * of_find_matching_node_and_match - Find a node based on an of_device_id +- * match table. +- * @from: The node to start searching from or NULL, the node +- * you pass will not be searched, only the next one +- * will; typically, you pass what the previous call +- * returned. of_node_put() will be called on it +- * @matches: array of of device match structures to search in +- * @match: Updated to point at the matches entry which matched ++ * of_find_matching_node_and_match - Find a node based on an of_device_id ++ * match table. ++ * @from: The node to start searching from or NULL, the node ++ * you pass will not be searched, only the next one ++ * will; typically, you pass what the previous call ++ * returned. of_node_put() will be called on it ++ * @matches: array of of device match structures to search in ++ * @match: Updated to point at the matches entry which matched + * +- * Returns a node pointer with refcount incremented, use +- * of_node_put() on it when done. ++ * Return: A node pointer with refcount incremented, use ++ * of_node_put() on it when done. + */ + struct device_node *of_find_matching_node_and_match(struct device_node *from, + const struct of_device_id *matches, +@@ -1465,21 +1465,21 @@ EXPORT_SYMBOL(of_parse_phandle); + * Caller is responsible to call of_node_put() on the returned out_args->np + * pointer. + * +- * Example: ++ * Example:: + * +- * phandle1: node1 { ++ * phandle1: node1 { + * #list-cells = <2>; +- * } ++ * }; + * +- * phandle2: node2 { ++ * phandle2: node2 { + * #list-cells = <1>; +- * } ++ * }; + * +- * node3 { ++ * node3 { + * list = <&phandle1 1 2 &phandle2 3>; +- * } ++ * }; + * +- * To get a device_node of the `node2' node you may call this: ++ * To get a device_node of the ``node2`` node you may call this: + * of_parse_phandle_with_args(node3, "list", "#list-cells", 1, &args); + */ + int of_parse_phandle_with_args(const struct device_node *np, const char *list_name, +@@ -1517,29 +1517,29 @@ EXPORT_SYMBOL(of_parse_phandle_with_args + * Caller is responsible to call of_node_put() on the returned out_args->np + * pointer. + * +- * Example: +- * +- * phandle1: node1 { +- * #list-cells = <2>; +- * } +- * +- * phandle2: node2 { +- * #list-cells = <1>; +- * } ++ * Example:: + * +- * phandle3: node3 { +- * #list-cells = <1>; +- * list-map = <0 &phandle2 3>, +- * <1 &phandle2 2>, +- * <2 &phandle1 5 1>; +- * list-map-mask = <0x3>; +- * }; +- * +- * node4 { +- * list = <&phandle1 1 2 &phandle3 0>; +- * } ++ * phandle1: node1 { ++ * #list-cells = <2>; ++ * }; ++ * ++ * phandle2: node2 { ++ * #list-cells = <1>; ++ * }; ++ * ++ * phandle3: node3 { ++ * #list-cells = <1>; ++ * list-map = <0 &phandle2 3>, ++ * <1 &phandle2 2>, ++ * <2 &phandle1 5 1>; ++ * list-map-mask = <0x3>; ++ * }; ++ * ++ * node4 { ++ * list = <&phandle1 1 2 &phandle3 0>; ++ * }; + * +- * To get a device_node of the `node2' node you may call this: ++ * To get a device_node of the ``node2`` node you may call this: + * of_parse_phandle_with_args(node4, "list", "list", 1, &args); + */ + int of_parse_phandle_with_args_map(const struct device_node *np, +@@ -1699,19 +1699,19 @@ EXPORT_SYMBOL(of_parse_phandle_with_args + * Caller is responsible to call of_node_put() on the returned out_args->np + * pointer. + * +- * Example: ++ * Example:: + * +- * phandle1: node1 { +- * } ++ * phandle1: node1 { ++ * }; + * +- * phandle2: node2 { +- * } ++ * phandle2: node2 { ++ * }; + * +- * node3 { +- * list = <&phandle1 0 2 &phandle2 2 3>; +- * } ++ * node3 { ++ * list = <&phandle1 0 2 &phandle2 2 3>; ++ * }; + * +- * To get a device_node of the `node2' node you may call this: ++ * To get a device_node of the ``node2`` node you may call this: + * of_parse_phandle_with_fixed_args(node3, "list", 2, 1, &args); + */ + int of_parse_phandle_with_fixed_args(const struct device_node *np, +@@ -1957,13 +1957,12 @@ static void of_alias_add(struct alias_pr + + /** + * of_alias_scan - Scan all properties of the 'aliases' node ++ * @dt_alloc: An allocator that provides a virtual address to memory ++ * for storing the resulting tree + * + * The function scans all the properties of the 'aliases' node and populates + * the global lookup table with the properties. It returns the + * number of alias properties found, or an error code in case of failure. +- * +- * @dt_alloc: An allocator that provides a virtual address to memory +- * for storing the resulting tree + */ + void of_alias_scan(void * (*dt_alloc)(u64 size, u64 align)) + { +@@ -2158,12 +2157,12 @@ bool of_console_check(struct device_node + EXPORT_SYMBOL_GPL(of_console_check); + + /** +- * of_find_next_cache_node - Find a node's subsidiary cache +- * @np: node of type "cpu" or "cache" ++ * of_find_next_cache_node - Find a node's subsidiary cache ++ * @np: node of type "cpu" or "cache" + * +- * Returns a node pointer with refcount incremented, use +- * of_node_put() on it when done. Caller should hold a reference +- * to np. ++ * Return: A node pointer with refcount incremented, use ++ * of_node_put() on it when done. Caller should hold a reference ++ * to np. + */ + struct device_node *of_find_next_cache_node(const struct device_node *np) + { +--- a/drivers/of/fdt.c ++++ b/drivers/of/fdt.c +@@ -349,11 +349,6 @@ static int unflatten_dt_nodes(const void + + /** + * __unflatten_device_tree - create tree of device_nodes from flat blob +- * +- * unflattens a device-tree, creating the +- * tree of struct device_node. It also fills the "name" and "type" +- * pointers of the nodes so the normal device-tree walking functions +- * can be used. + * @blob: The blob to expand + * @dad: Parent device node + * @mynodes: The device_node tree created by the call +@@ -361,6 +356,10 @@ static int unflatten_dt_nodes(const void + * for the resulting tree + * @detached: if true set OF_DETACHED on @mynodes + * ++ * unflattens a device-tree, creating the tree of struct device_node. It also ++ * fills the "name" and "type" pointers of the nodes so the normal device-tree ++ * walking functions can be used. ++ * + * Returns NULL on failure or the memory chunk containing the unflattened + * device tree on success. + */ diff --git a/target/linux/generic/backport-5.10/732-v5.13-0006-of-Add-missing-Return-section-in-kerneldoc-comments.patch b/target/linux/generic/backport-5.10/732-v5.13-0006-of-Add-missing-Return-section-in-kerneldoc-comments.patch new file mode 100644 index 0000000000..9c99ccb1db --- /dev/null +++ b/target/linux/generic/backport-5.10/732-v5.13-0006-of-Add-missing-Return-section-in-kerneldoc-comments.patch @@ -0,0 +1,787 @@ +From 8c8239c2c1fb82f171cb22a707f3bb88a2f22109 Mon Sep 17 00:00:00 2001 +From: Rob Herring <robh@kernel.org> +Date: Thu, 25 Mar 2021 10:47:12 -0600 +Subject: [PATCH] of: Add missing 'Return' section in kerneldoc comments + +Many of the DT kerneldoc comments are lacking a 'Return' section. Let's +add the section in cases we have a description of return values. There's +still some cases where the return values are not documented. + +Cc: Frank Rowand <frowand.list@gmail.com> +Cc: Mauro Carvalho Chehab <mchehab@kernel.org> +Signed-off-by: Rob Herring <robh@kernel.org> +Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> +Link: https://lore.kernel.org/r/20210325164713.1296407-8-robh@kernel.org +--- + drivers/of/base.c | 39 +++++++++++++------------ + drivers/of/dynamic.c | 19 ++++++++----- + drivers/of/fdt.c | 8 +++--- + drivers/of/irq.c | 14 ++++----- + drivers/of/overlay.c | 16 +++++------ + drivers/of/platform.c | 10 +++---- + drivers/of/property.c | 66 +++++++++++++++++++++++++++---------------- + include/linux/of.h | 63 ++++++++++++++++++++++++++--------------- + 8 files changed, 140 insertions(+), 95 deletions(-) + +--- a/drivers/of/base.c ++++ b/drivers/of/base.c +@@ -244,7 +244,7 @@ struct device_node *__of_find_all_nodes( + * @prev: Previous node or NULL to start iteration + * of_node_put() will be called on it + * +- * Returns a node pointer with refcount incremented, use ++ * Return: A node pointer with refcount incremented, use + * of_node_put() on it when done. + */ + struct device_node *of_find_all_nodes(struct device_node *prev) +@@ -374,7 +374,7 @@ bool __weak arch_find_n_match_cpu_physic + * before booting secondary cores. This function uses arch_match_cpu_phys_id + * which can be overridden by architecture specific implementation. + * +- * Returns a node pointer for the logical cpu with refcount incremented, use ++ * Return: A node pointer for the logical cpu with refcount incremented, use + * of_node_put() on it when done. Returns NULL if not found. + */ + struct device_node *of_get_cpu_node(int cpu, unsigned int *thread) +@@ -394,8 +394,8 @@ EXPORT_SYMBOL(of_get_cpu_node); + * + * @cpu_node: Pointer to the device_node for CPU. + * +- * Returns the logical CPU number of the given CPU device_node. +- * Returns -ENODEV if the CPU is not found. ++ * Return: The logical CPU number of the given CPU device_node or -ENODEV if the ++ * CPU is not found. + */ + int of_cpu_node_to_id(struct device_node *cpu_node) + { +@@ -427,7 +427,7 @@ EXPORT_SYMBOL(of_cpu_node_to_id); + * bindings. This function check for both and returns the idle state node for + * the requested index. + * +- * In case an idle state node is found at @index, the refcount is incremented ++ * Return: An idle state node if found at @index. The refcount is incremented + * for it, so call of_node_put() on it when done. Returns NULL if not found. + */ + struct device_node *of_get_cpu_state_node(struct device_node *cpu_node, +@@ -561,7 +561,7 @@ int of_device_compatible_match(struct de + * of_machine_is_compatible - Test root of device tree for a given compatible value + * @compat: compatible string to look for in root node's compatible property. + * +- * Returns a positive integer if the root node has the given value in its ++ * Return: A positive integer if the root node has the given value in its + * compatible property. + */ + int of_machine_is_compatible(const char *compat) +@@ -583,7 +583,7 @@ EXPORT_SYMBOL(of_machine_is_compatible); + * + * @device: Node to check for availability, with locks already held + * +- * Returns true if the status property is absent or set to "okay" or "ok", ++ * Return: True if the status property is absent or set to "okay" or "ok", + * false otherwise + */ + static bool __of_device_is_available(const struct device_node *device) +@@ -611,7 +611,7 @@ static bool __of_device_is_available(con + * + * @device: Node to check for availability + * +- * Returns true if the status property is absent or set to "okay" or "ok", ++ * Return: True if the status property is absent or set to "okay" or "ok", + * false otherwise + */ + bool of_device_is_available(const struct device_node *device) +@@ -632,7 +632,7 @@ EXPORT_SYMBOL(of_device_is_available); + * + * @device: Node to check for endianness + * +- * Returns true if the device has a "big-endian" property, or if the kernel ++ * Return: True if the device has a "big-endian" property, or if the kernel + * was compiled for BE *and* the device has a "native-endian" property. + * Returns false otherwise. + * +@@ -816,7 +816,7 @@ EXPORT_SYMBOL(of_get_next_cpu_node); + * Lookup child node whose compatible property contains the given compatible + * string. + * +- * Returns a node pointer with refcount incremented, use of_node_put() on it ++ * Return: a node pointer with refcount incremented, use of_node_put() on it + * when done; or NULL if not found. + */ + struct device_node *of_get_compatible_child(const struct device_node *parent, +@@ -1170,7 +1170,7 @@ EXPORT_SYMBOL(of_find_matching_node_and_ + * It does this by stripping the manufacturer prefix (as delimited by a ',') + * from the first entry in the compatible list property. + * +- * This routine returns 0 on success, <0 on failure. ++ * Return: This routine returns 0 on success, <0 on failure. + */ + int of_modalias_node(struct device_node *node, char *modalias, int len) + { +@@ -1190,7 +1190,7 @@ EXPORT_SYMBOL_GPL(of_modalias_node); + * of_find_node_by_phandle - Find a node given a phandle + * @handle: phandle of the node to find + * +- * Returns a node pointer with refcount incremented, use ++ * Return: A node pointer with refcount incremented, use + * of_node_put() on it when done. + */ + struct device_node *of_find_node_by_phandle(phandle handle) +@@ -1431,7 +1431,7 @@ static int __of_parse_phandle_with_args( + * @index: For properties holding a table of phandles, this is the index into + * the table + * +- * Returns the device_node pointer with refcount incremented. Use ++ * 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, +@@ -1731,7 +1731,7 @@ EXPORT_SYMBOL(of_parse_phandle_with_fixe + * @list_name: property name that contains a list + * @cells_name: property name that specifies phandles' arguments count + * +- * Returns the number of phandle + argument tuples within a property. It ++ * Return: The number of phandle + argument tuples within a property. It + * is a typical pattern to encode a list of phandle and variable + * arguments into a single property. The number of arguments is encoded + * by a property in the phandle-target node. For example, a gpios +@@ -2031,7 +2031,9 @@ void of_alias_scan(void * (*dt_alloc)(u6 + * @stem: Alias stem of the given device_node + * + * The function travels the lookup table to get the alias id for the given +- * device_node and alias stem. It returns the alias id if found. ++ * device_node and alias stem. ++ * ++ * Return: The alias id if found. + */ + int of_alias_get_id(struct device_node *np, const char *stem) + { +@@ -2140,8 +2142,9 @@ EXPORT_SYMBOL_GPL(of_alias_get_highest_i + * @index: Index to use for preferred console. + * + * Check if the given device node matches the stdout-path property in the +- * /chosen node. If it does then register it as the preferred console and return +- * TRUE. Otherwise return FALSE. ++ * /chosen node. If it does then register it as the preferred console. ++ * ++ * Return: TRUE if console successfully setup. Otherwise return FALSE. + */ + bool of_console_check(struct device_node *dn, char *name, int index) + { +@@ -2192,7 +2195,7 @@ struct device_node *of_find_next_cache_n + * + * @cpu: cpu number(logical index) for which the last cache level is needed + * +- * Returns the the level at which the last cache is present. It is exactly ++ * Return: The the level at which the last cache is present. It is exactly + * same as the total number of cache levels for the given logical cpu. + */ + int of_find_last_cache_level(unsigned int cpu) +--- a/drivers/of/dynamic.c ++++ b/drivers/of/dynamic.c +@@ -27,7 +27,7 @@ static struct device_node *kobj_to_devic + * @node: Node to inc refcount, NULL is supported to simplify writing of + * callers + * +- * Returns node. ++ * Return: The node with refcount incremented. + */ + struct device_node *of_node_get(struct device_node *node) + { +@@ -104,7 +104,8 @@ int of_reconfig_notify(unsigned long act + * @arg - argument of the of notifier + * + * Returns the new state of a device based on the notifier used. +- * Returns 0 on device going from enabled to disabled, 1 on device ++ * ++ * Return: 0 on device going from enabled to disabled, 1 on device + * going from disabled to enabled and -1 on no change. + */ + int of_reconfig_get_state_change(unsigned long action, struct of_reconfig_data *pr) +@@ -371,7 +372,8 @@ void of_node_release(struct kobject *kob + * property structure and the property name & contents. The property's + * flags have the OF_DYNAMIC bit set so that we can differentiate between + * dynamically allocated properties and not. +- * Returns the newly allocated property or NULL on out of memory error. ++ * ++ * Return: The newly allocated property or NULL on out of memory error. + */ + struct property *__of_prop_dup(const struct property *prop, gfp_t allocflags) + { +@@ -414,7 +416,7 @@ struct property *__of_prop_dup(const str + * another node. The node data are dynamically allocated and all the node + * flags have the OF_DYNAMIC & OF_DETACHED bits set. + * +- * Returns the newly allocated node or NULL on out of memory error. ++ * Return: The newly allocated node or NULL on out of memory error. + */ + struct device_node *__of_node_dup(const struct device_node *np, + const char *full_name) +@@ -780,7 +782,8 @@ static int __of_changeset_apply(struct o + * Any side-effects of live tree state changes are applied here on + * success, like creation/destruction of devices and side-effects + * like creation of sysfs properties and directories. +- * Returns 0 on success, a negative error value in case of an error. ++ * ++ * Return: 0 on success, a negative error value in case of an error. + * On error the partially applied effects are reverted. + */ + int of_changeset_apply(struct of_changeset *ocs) +@@ -874,7 +877,8 @@ static int __of_changeset_revert(struct + * was before the application. + * Any side-effects like creation/destruction of devices and + * removal of sysfs properties and directories are applied. +- * Returns 0 on success, a negative error value in case of an error. ++ * ++ * Return: 0 on success, a negative error value in case of an error. + */ + int of_changeset_revert(struct of_changeset *ocs) + { +@@ -902,7 +906,8 @@ EXPORT_SYMBOL_GPL(of_changeset_revert); + * + OF_RECONFIG_ADD_PROPERTY + * + OF_RECONFIG_REMOVE_PROPERTY, + * + OF_RECONFIG_UPDATE_PROPERTY +- * Returns 0 on success, a negative error value in case of an error. ++ * ++ * Return: 0 on success, a negative error value in case of an error. + */ + int of_changeset_action(struct of_changeset *ocs, unsigned long action, + struct device_node *np, struct property *prop) +--- a/drivers/of/fdt.c ++++ b/drivers/of/fdt.c +@@ -282,7 +282,7 @@ static void reverse_nodes(struct device_ + * @dad: Parent struct device_node + * @nodepp: The device_node tree created by the call + * +- * It returns the size of unflattened device tree or error code ++ * Return: The size of unflattened device tree or error code + */ + static int unflatten_dt_nodes(const void *blob, + void *mem, +@@ -360,7 +360,7 @@ static int unflatten_dt_nodes(const void + * fills the "name" and "type" pointers of the nodes so the normal device-tree + * walking functions can be used. + * +- * Returns NULL on failure or the memory chunk containing the unflattened ++ * Return: NULL on failure or the memory chunk containing the unflattened + * device tree on success. + */ + void *__unflatten_device_tree(const void *blob, +@@ -441,7 +441,7 @@ static DEFINE_MUTEX(of_fdt_unflatten_mut + * pointers of the nodes so the normal device-tree walking functions + * can be used. + * +- * Returns NULL on failure or the memory chunk containing the unflattened ++ * Return: NULL on failure or the memory chunk containing the unflattened + * device tree on success. + */ + void *of_fdt_unflatten_tree(const unsigned long *blob, +@@ -715,7 +715,7 @@ const void *__init of_get_flat_dt_prop(u + * @node: node to test + * @compat: compatible string to compare with compatible list. + * +- * On match, returns a non-zero value with smaller values returned for more ++ * Return: a non-zero value on match with smaller values returned for more + * specific compatible values. + */ + static int of_fdt_is_compatible(const void *blob, +--- a/drivers/of/irq.c ++++ b/drivers/of/irq.c +@@ -48,7 +48,7 @@ EXPORT_SYMBOL_GPL(irq_of_parse_and_map); + * of_irq_find_parent - Given a device node, find its interrupt parent node + * @child: pointer to device node + * +- * Returns a pointer to the interrupt parent node, or NULL if the interrupt ++ * Return: A pointer to the interrupt parent node, or NULL if the interrupt + * parent could not be determined. + */ + struct device_node *of_irq_find_parent(struct device_node *child) +@@ -81,14 +81,14 @@ EXPORT_SYMBOL_GPL(of_irq_find_parent); + * @addr: address specifier (start of "reg" property of the device) in be32 format + * @out_irq: structure of_phandle_args updated by this function + * +- * Returns 0 on success and a negative number on error +- * + * This function is a low-level interrupt tree walking function. It + * can be used to do a partial walk with synthetized reg and interrupts + * properties, for example when resolving PCI interrupts when no device + * node exist for the parent. It takes an interrupt specifier structure as + * input, walks the tree looking for any interrupt-map properties, translates + * the specifier for each map, and then returns the translated map. ++ * ++ * Return: 0 on success and a negative number on error + */ + int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq) + { +@@ -380,7 +380,7 @@ EXPORT_SYMBOL_GPL(of_irq_to_resource); + * @dev: pointer to device tree node + * @index: zero-based index of the IRQ + * +- * Returns Linux IRQ number on success, or 0 on the IRQ mapping failure, or ++ * Return: Linux IRQ number on success, or 0 on the IRQ mapping failure, or + * -EPROBE_DEFER if the IRQ domain is not yet created, or error code in case + * of any other failure. + */ +@@ -407,7 +407,7 @@ EXPORT_SYMBOL_GPL(of_irq_get); + * @dev: pointer to device tree node + * @name: IRQ name + * +- * Returns Linux IRQ number on success, or 0 on the IRQ mapping failure, or ++ * Return: Linux IRQ number on success, or 0 on the IRQ mapping failure, or + * -EPROBE_DEFER if the IRQ domain is not yet created, or error code in case + * of any other failure. + */ +@@ -447,7 +447,7 @@ int of_irq_count(struct device_node *dev + * @res: array of resources to fill in + * @nr_irqs: the number of IRQs (and upper bound for num of @res elements) + * +- * Returns the size of the filled in table (up to @nr_irqs). ++ * Return: The size of the filled in table (up to @nr_irqs). + */ + int of_irq_to_resource_table(struct device_node *dev, struct resource *res, + int nr_irqs) +@@ -602,7 +602,7 @@ static u32 __of_msi_map_id(struct device + * Walk up the device hierarchy looking for devices with a "msi-map" + * property. If found, apply the mapping to @id_in. + * +- * Returns the mapped MSI ID. ++ * Return: The mapped MSI ID. + */ + u32 of_msi_map_id(struct device *dev, struct device_node *msi_np, u32 id_in) + { +--- a/drivers/of/overlay.c ++++ b/drivers/of/overlay.c +@@ -296,7 +296,7 @@ err_free_target_path: + * + * Update of property in symbols node is not allowed. + * +- * Returns 0 on success, -ENOMEM if memory allocation failure, or -EINVAL if ++ * Return: 0 on success, -ENOMEM if memory allocation failure, or -EINVAL if + * invalid @overlay. + */ + static int add_changeset_property(struct overlay_changeset *ovcs, +@@ -401,7 +401,7 @@ static int add_changeset_property(struct + * + * NOTE_2: Multiple mods of created nodes not supported. + * +- * Returns 0 on success, -ENOMEM if memory allocation failure, or -EINVAL if ++ * Return: 0 on success, -ENOMEM if memory allocation failure, or -EINVAL if + * invalid @overlay. + */ + static int add_changeset_node(struct overlay_changeset *ovcs, +@@ -473,7 +473,7 @@ static int add_changeset_node(struct ove + * + * Do not allow symbols node to have any children. + * +- * Returns 0 on success, -ENOMEM if memory allocation failure, or -EINVAL if ++ * Return: 0 on success, -ENOMEM if memory allocation failure, or -EINVAL if + * invalid @overlay_node. + */ + static int build_changeset_next_level(struct overlay_changeset *ovcs, +@@ -604,7 +604,7 @@ static int find_dup_cset_prop(struct ove + * the same node or duplicate {add, delete, or update} properties entries + * for the same property. + * +- * Returns 0 on success, or -EINVAL if duplicate changeset entry found. ++ * Return: 0 on success, or -EINVAL if duplicate changeset entry found. + */ + static int changeset_dup_entry_check(struct overlay_changeset *ovcs) + { +@@ -628,7 +628,7 @@ static int changeset_dup_entry_check(str + * any portions of the changeset that were successfully created will remain + * in @ovcs->cset. + * +- * Returns 0 on success, -ENOMEM if memory allocation failure, or -EINVAL if ++ * Return: 0 on success, -ENOMEM if memory allocation failure, or -EINVAL if + * invalid overlay in @ovcs->fragments[]. + */ + static int build_changeset(struct overlay_changeset *ovcs) +@@ -724,7 +724,7 @@ static struct device_node *find_target(s + * the top level of @tree. The relevant top level nodes are the fragment + * nodes and the __symbols__ node. Any other top level node will be ignored. + * +- * Returns 0 on success, -ENOMEM if memory allocation failure, -EINVAL if error ++ * Return: 0 on success, -ENOMEM if memory allocation failure, -EINVAL if error + * detected in @tree, or -ENOSPC if idr_alloc() error. + */ + static int init_overlay_changeset(struct overlay_changeset *ovcs, +@@ -1179,7 +1179,7 @@ static int overlay_removal_is_ok(struct + * If an error is returned by an overlay changeset post-remove notifier + * then no further overlay changeset post-remove notifier will be called. + * +- * Returns 0 on success, or a negative error number. *ovcs_id is set to ++ * Return: 0 on success, or a negative error number. *ovcs_id is set to + * zero after reverting the changeset, even if a subsequent error occurs. + */ + int of_overlay_remove(int *ovcs_id) +@@ -1257,7 +1257,7 @@ EXPORT_SYMBOL_GPL(of_overlay_remove); + * + * Removes all overlays from the system in the correct order. + * +- * Returns 0 on success, or a negative error number ++ * Return: 0 on success, or a negative error number + */ + int of_overlay_remove_all(void) + { +--- a/drivers/of/platform.c ++++ b/drivers/of/platform.c +@@ -44,7 +44,7 @@ static const struct of_device_id of_skip + * Takes a reference to the embedded struct device which needs to be dropped + * after use. + * +- * Returns platform_device pointer, or NULL if not found ++ * Return: platform_device pointer, or NULL if not found + */ + struct platform_device *of_find_device_by_node(struct device_node *np) + { +@@ -160,7 +160,7 @@ EXPORT_SYMBOL(of_device_alloc); + * @platform_data: pointer to populate platform_data pointer with + * @parent: Linux device model parent device. + * +- * Returns pointer to created platform device, or NULL if a device was not ++ * Return: Pointer to created platform device, or NULL if a device was not + * registered. Unavailable devices will not get registered. + */ + static struct platform_device *of_platform_device_create_pdata( +@@ -204,7 +204,7 @@ err_clear_flag: + * @bus_id: name to assign device + * @parent: Linux device model parent device. + * +- * Returns pointer to created platform device, or NULL if a device was not ++ * Return: Pointer to created platform device, or NULL if a device was not + * registered. Unavailable devices will not get registered. + */ + struct platform_device *of_platform_device_create(struct device_node *np, +@@ -463,7 +463,7 @@ EXPORT_SYMBOL(of_platform_bus_probe); + * New board support should be using this function instead of + * of_platform_bus_probe(). + * +- * Returns 0 on success, < 0 on failure. ++ * Return: 0 on success, < 0 on failure. + */ + int of_platform_populate(struct device_node *root, + const struct of_device_id *matches, +@@ -608,7 +608,7 @@ static void devm_of_platform_populate_re + * Similar to of_platform_populate(), but will automatically call + * of_platform_depopulate() when the device is unbound from the bus. + * +- * Returns 0 on success, < 0 on failure. ++ * Return: 0 on success, < 0 on failure. + */ + int devm_of_platform_populate(struct device *dev) + { +--- a/drivers/of/property.c ++++ b/drivers/of/property.c +@@ -60,9 +60,11 @@ EXPORT_SYMBOL(of_graph_is_present); + * @elem_size: size of the individual element + * + * Search for a property in a device node and count the number of elements of +- * size elem_size in it. Returns number of elements on sucess, -EINVAL if the +- * property does not exist or its length does not match a multiple of elem_size +- * and -ENODATA if the property does not have a value. ++ * size elem_size in it. ++ * ++ * Return: The number of elements on sucess, -EINVAL if the property does not ++ * exist or its length does not match a multiple of elem_size and -ENODATA if ++ * the property does not have a value. + */ + int of_property_count_elems_of_size(const struct device_node *np, + const char *propname, int elem_size) +@@ -94,8 +96,9 @@ EXPORT_SYMBOL_GPL(of_property_count_elem + * @len: if !=NULL, actual length is written to here + * + * Search for a property in a device node and valid the requested size. +- * Returns the property value on success, -EINVAL if the property does not +- * exist, -ENODATA if property does not have a value, and -EOVERFLOW if the ++ * ++ * Return: The property value on success, -EINVAL if the property does not ++ * exist, -ENODATA if property does not have a value, and -EOVERFLOW if the + * property data is too small or too large. + * + */ +@@ -128,7 +131,9 @@ static void *of_find_property_value_of_s + * @out_value: pointer to return value, modified only if no error. + * + * Search for a property in a device node and read nth 32-bit value from +- * it. Returns 0 on success, -EINVAL if the property does not exist, ++ * it. ++ * ++ * 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. + * +@@ -160,7 +165,9 @@ EXPORT_SYMBOL_GPL(of_property_read_u32_i + * @out_value: pointer to return value, modified only if no error. + * + * Search for a property in a device node and read nth 64-bit value from +- * it. Returns 0 on success, -EINVAL if the property does not exist, ++ * it. ++ * ++ * 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. + * +@@ -195,12 +202,14 @@ EXPORT_SYMBOL_GPL(of_property_read_u64_i + * sz_min will be read. + * + * Search for a property in a device node and read 8-bit value(s) from +- * it. Returns number of elements read on success, -EINVAL if the property +- * does not exist, -ENODATA if property does not have a value, and -EOVERFLOW +- * if the property data is smaller than sz_min or longer than sz_max. ++ * it. + * + * dts entry of array should be like: +- * property = /bits/ 8 <0x50 0x60 0x70>; ++ * ``property = /bits/ 8 <0x50 0x60 0x70>;`` ++ * ++ * Return: The number of elements read on success, -EINVAL if the property ++ * does not exist, -ENODATA if property does not have a value, and -EOVERFLOW ++ * if the property data is smaller than sz_min or longer than sz_max. + * + * The out_values is modified only if a valid u8 value can be decoded. + */ +@@ -243,12 +252,14 @@ EXPORT_SYMBOL_GPL(of_property_read_varia + * sz_min will be read. + * + * Search for a property in a device node and read 16-bit value(s) from +- * it. Returns number of elements read on success, -EINVAL if the property +- * does not exist, -ENODATA if property does not have a value, and -EOVERFLOW +- * if the property data is smaller than sz_min or longer than sz_max. ++ * it. + * + * dts entry of array should be like: +- * property = /bits/ 16 <0x5000 0x6000 0x7000>; ++ * ``property = /bits/ 16 <0x5000 0x6000 0x7000>;`` ++ * ++ * Return: The number of elements read on success, -EINVAL if the property ++ * does not exist, -ENODATA if property does not have a value, and -EOVERFLOW ++ * if the property data is smaller than sz_min or longer than sz_max. + * + * The out_values is modified only if a valid u16 value can be decoded. + */ +@@ -291,7 +302,9 @@ EXPORT_SYMBOL_GPL(of_property_read_varia + * sz_min will be read. + * + * Search for a property in a device node and read 32-bit value(s) from +- * it. Returns number of elements read on success, -EINVAL if the property ++ * it. ++ * ++ * Return: The number of elements read on success, -EINVAL if the property + * does not exist, -ENODATA if property does not have a value, and -EOVERFLOW + * if the property data is smaller than sz_min or longer than sz_max. + * +@@ -330,7 +343,9 @@ EXPORT_SYMBOL_GPL(of_property_read_varia + * @out_value: pointer to return value, modified only if return value is 0. + * + * Search for a property in a device node and read a 64-bit value from +- * it. Returns 0 on success, -EINVAL if the property does not exist, ++ * it. ++ * ++ * 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. + * +@@ -365,7 +380,9 @@ EXPORT_SYMBOL_GPL(of_property_read_u64); + * sz_min will be read. + * + * Search for a property in a device node and read 64-bit value(s) from +- * it. Returns number of elements read on success, -EINVAL if the property ++ * it. ++ * ++ * Return: The number of elements read on success, -EINVAL if the property + * does not exist, -ENODATA if property does not have a value, and -EOVERFLOW + * if the property data is smaller than sz_min or longer than sz_max. + * +@@ -407,10 +424,11 @@ EXPORT_SYMBOL_GPL(of_property_read_varia + * 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). 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. ++ * terminated string value (pointer to data, not a copy). ++ * ++ * 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. + */ +@@ -774,7 +792,7 @@ EXPORT_SYMBOL(of_graph_get_remote_port_p + * @node: pointer to a local endpoint device_node + * + * Return: Remote port node associated with remote endpoint node linked +- * to @node. Use of_node_put() on it when done. ++ * to @node. Use of_node_put() on it when done. + */ + struct device_node *of_graph_get_remote_port(const struct device_node *node) + { +@@ -807,7 +825,7 @@ EXPORT_SYMBOL(of_graph_get_endpoint_coun + * @endpoint: identifier (value of reg property) of the endpoint node + * + * Return: Remote device node associated with remote endpoint node linked +- * to @node. Use of_node_put() on it when done. ++ * to @node. Use of_node_put() on it when done. + */ + struct device_node *of_graph_get_remote_node(const struct device_node *node, + u32 port, u32 endpoint) +--- a/include/linux/of.h ++++ b/include/linux/of.h +@@ -424,12 +424,14 @@ extern int of_detach_node(struct device_ + * @sz: number of array elements to read + * + * Search for a property in a device node and read 8-bit value(s) from +- * it. Returns 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. ++ * it. + * + * dts entry of array should be like: +- * property = /bits/ 8 <0x50 0x60 0x70>; ++ * ``property = /bits/ 8 <0x50 0x60 0x70>;`` ++ * ++ * 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. + * + * The out_values is modified only if a valid u8 value can be decoded. + */ +@@ -454,12 +456,14 @@ static inline int of_property_read_u8_ar + * @sz: number of array elements to read + * + * Search for a property in a device node and read 16-bit value(s) from +- * it. Returns 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. ++ * it. + * + * dts entry of array should be like: +- * property = /bits/ 16 <0x5000 0x6000 0x7000>; ++ * ``property = /bits/ 16 <0x5000 0x6000 0x7000>;`` ++ * ++ * 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. + * + * The out_values is modified only if a valid u16 value can be decoded. + */ +@@ -485,7 +489,9 @@ static inline int of_property_read_u16_a + * @sz: number of array elements to read + * + * 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, ++ * it. ++ * ++ * 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. + * +@@ -513,7 +519,9 @@ static inline int of_property_read_u32_a + * @sz: number of array elements to read + * + * Search for a property in a device node and read 64-bit value(s) from +- * it. Returns 0 on success, -EINVAL if the property does not exist, ++ * it. ++ * ++ * 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. + * +@@ -1063,7 +1071,9 @@ static inline bool of_node_is_type(const + * @propname: name of the property to be searched. + * + * Search for a property in a device node and count the number of u8 elements +- * in it. Returns number of elements on sucess, -EINVAL if the property does ++ * in it. ++ * ++ * Return: The number of elements on sucess, -EINVAL if the property does + * not exist or its length does not match a multiple of u8 and -ENODATA if the + * property does not have a value. + */ +@@ -1080,7 +1090,9 @@ static inline int of_property_count_u8_e + * @propname: name of the property to be searched. + * + * Search for a property in a device node and count the number of u16 elements +- * in it. Returns number of elements on sucess, -EINVAL if the property does ++ * in it. ++ * ++ * Return: The number of elements on sucess, -EINVAL if the property does + * not exist or its length does not match a multiple of u16 and -ENODATA if the + * property does not have a value. + */ +@@ -1097,7 +1109,9 @@ static inline int of_property_count_u16_ + * @propname: name of the property to be searched. + * + * Search for a property in a device node and count the number of u32 elements +- * in it. Returns number of elements on sucess, -EINVAL if the property does ++ * in it. ++ * ++ * Return: The number of elements on sucess, -EINVAL if the property does + * not exist or its length does not match a multiple of u32 and -ENODATA if the + * property does not have a value. + */ +@@ -1114,7 +1128,9 @@ static inline int of_property_count_u32_ + * @propname: name of the property to be searched. + * + * Search for a property in a device node and count the number of u64 elements +- * in it. Returns number of elements on sucess, -EINVAL if the property does ++ * in it. ++ * ++ * Return: The number of elements on sucess, -EINVAL if the property does + * not exist or its length does not match a multiple of u64 and -ENODATA if the + * property does not have a value. + */ +@@ -1135,7 +1151,7 @@ static inline int of_property_count_u64_ + * Search for a property in a device tree node and retrieve a list of + * terminated string values (pointer to data, not a copy) in that property. + * +- * If @out_strs is NULL, the number of strings in the property is returned. ++ * Return: If @out_strs is NULL, the number of strings in the property is returned. + */ + static inline int of_property_read_string_array(const struct device_node *np, + const char *propname, const char **out_strs, +@@ -1151,10 +1167,11 @@ static inline int of_property_read_strin + * @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) +@@ -1174,7 +1191,8 @@ static inline int of_property_count_stri + * 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 ++ * ++ * 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. + * +@@ -1194,7 +1212,8 @@ static inline int of_property_read_strin + * @propname: name of the property to be searched. + * + * Search for a property in a device node. +- * Returns true if the property exists false otherwise. ++ * ++ * Return: true if the property exists false otherwise. + */ + static inline bool of_property_read_bool(const struct device_node *np, + const char *propname) +@@ -1440,7 +1459,7 @@ static inline int of_reconfig_get_state_ + * of_device_is_system_power_controller - Tells if system-power-controller is found for device_node + * @np: Pointer to the given device_node + * +- * return true if present false otherwise ++ * Return: true if present false otherwise + */ + static inline bool of_device_is_system_power_controller(const struct device_node *np) + { diff --git a/target/linux/generic/backport-5.10/732-v5.13-0007-of-base-Fix-spelling-issue-with-function-param-prop.patch b/target/linux/generic/backport-5.10/732-v5.13-0007-of-base-Fix-spelling-issue-with-function-param-prop.patch new file mode 100644 index 0000000000..64197d7482 --- /dev/null +++ b/target/linux/generic/backport-5.10/732-v5.13-0007-of-base-Fix-spelling-issue-with-function-param-prop.patch @@ -0,0 +1,54 @@ +From 31e46db02ac1351c84e56a18606d17fc1b8390dd Mon Sep 17 00:00:00 2001 +From: Lee Jones <lee.jones@linaro.org> +Date: Mon, 29 Mar 2021 16:24:35 +0100 +Subject: [PATCH] of: base: Fix spelling issue with function param 'prop' + +Fixes the following W=1 kernel build warning(s): + + drivers/of/base.c:1781: warning: Function parameter or member 'prop' not described in '__of_add_property' + drivers/of/base.c:1781: warning: Excess function parameter 'prob' description in '__of_add_property' + drivers/of/base.c:1804: warning: Function parameter or member 'prop' not described in 'of_add_property' + drivers/of/base.c:1804: warning: Excess function parameter 'prob' description in 'of_add_property' + drivers/of/base.c:1855: warning: Function parameter or member 'prop' not described in 'of_remove_property' + drivers/of/base.c:1855: warning: Excess function parameter 'prob' description in 'of_remove_property' + +Cc: Rob Herring <robh+dt@kernel.org> +Cc: Frank Rowand <frowand.list@gmail.com> +Cc: "David S. Miller" <davem@davemloft.net> +Cc: devicetree@vger.kernel.org +Signed-off-by: Lee Jones <lee.jones@linaro.org> +Link: https://lore.kernel.org/r/20210329152435.900225-1-lee.jones@linaro.org +Signed-off-by: Rob Herring <robh@kernel.org> +--- + drivers/of/base.c | 6 +++--- + 1 file changed, 3 insertions(+), 3 deletions(-) + +--- a/drivers/of/base.c ++++ b/drivers/of/base.c +@@ -1780,7 +1780,7 @@ EXPORT_SYMBOL(of_count_phandle_with_args + /** + * __of_add_property - Add a property to a node without lock operations + * @np: Caller's Device Node +- * @prob: Property to add ++ * @prop: Property to add + */ + int __of_add_property(struct device_node *np, struct property *prop) + { +@@ -1803,7 +1803,7 @@ int __of_add_property(struct device_node + /** + * of_add_property - Add a property to a node + * @np: Caller's Device Node +- * @prob: Property to add ++ * @prop: Property to add + */ + int of_add_property(struct device_node *np, struct property *prop) + { +@@ -1849,7 +1849,7 @@ int __of_remove_property(struct device_n + /** + * of_remove_property - Remove a property from a node. + * @np: Caller's Device Node +- * @prob: Property to remove ++ * @prop: Property to remove + * + * Note that we don't actually remove it, since we have given out + * who-knows-how-many pointers to the data using get-property. diff --git a/target/linux/generic/backport-5.10/732-net-next-1-of-net-pass-the-dst-buffer-to-of_get_mac_address.patch b/target/linux/generic/backport-5.10/732-v5.13-0008-of-net-pass-the-dst-buffer-to-of_get_mac_address.patch index 928e1ca0dc..ae46508aeb 100644 --- a/target/linux/generic/backport-5.10/732-net-next-1-of-net-pass-the-dst-buffer-to-of_get_mac_address.patch +++ b/target/linux/generic/backport-5.10/732-v5.13-0008-of-net-pass-the-dst-buffer-to-of_get_mac_address.patch @@ -1,7 +1,7 @@ From 83216e3988cd196183542937c9bd58b279f946af Mon Sep 17 00:00:00 2001 From: Michael Walle <michael@walle.cc> Date: Mon, 12 Apr 2021 19:47:17 +0200 -Subject: of: net: pass the dst buffer to of_get_mac_address() +Subject: [PATCH] of: net: pass the dst buffer to of_get_mac_address() of_get_mac_address() returns a "const void*" pointer to a MAC address. Lately, support to fetch the MAC address by an NVMEM provider was added. diff --git a/target/linux/generic/backport-5.10/732-net-next-2-of-net-fix-of_get_mac_addr_nvmem-for-non-platform-devices.patch b/target/linux/generic/backport-5.10/732-v5.13-0009-of-net-fix-of_get_mac_addr_nvmem-for-non-platform-de.patch index 245c5f3bd6..260a3258bb 100644 --- a/target/linux/generic/backport-5.10/732-net-next-2-of-net-fix-of_get_mac_addr_nvmem-for-non-platform-devices.patch +++ b/target/linux/generic/backport-5.10/732-v5.13-0009-of-net-fix-of_get_mac_addr_nvmem-for-non-platform-de.patch @@ -1,7 +1,7 @@ From f10843e04a075202dbb39dfcee047e3a2fdf5a8d Mon Sep 17 00:00:00 2001 From: Michael Walle <michael@walle.cc> Date: Mon, 12 Apr 2021 19:47:18 +0200 -Subject: of: net: fix of_get_mac_addr_nvmem() for non-platform devices +Subject: [PATCH] of: net: fix of_get_mac_addr_nvmem() for non-platform devices of_get_mac_address() already supports fetching the MAC address by an nvmem provider. But until now, it was just working for platform devices. diff --git a/target/linux/generic/backport-5.10/825-v5.15-of-unify-of_count_phandle_with_args-arguments-with-C.patch b/target/linux/generic/backport-5.10/825-v5.15-of-unify-of_count_phandle_with_args-arguments-with-C.patch new file mode 100644 index 0000000000..ee5b7a0f7e --- /dev/null +++ b/target/linux/generic/backport-5.10/825-v5.15-of-unify-of_count_phandle_with_args-arguments-with-C.patch @@ -0,0 +1,27 @@ +From a065d5615fc83908ef21ed8159ffb63d816ff5de Mon Sep 17 00:00:00 2001 +From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> +Date: Wed, 28 Jul 2021 16:42:27 +0200 +Subject: [PATCH] of: unify of_count_phandle_with_args() arguments with + !CONFIG_OF + +Unify the declaration of of_count_phandle_with_args() between enabled +and disabled OF by making constifying pointed device_node. + +Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> +Reviewed-by: Rob Herring <robh@kernel.org> +Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> +--- + include/linux/of.h | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/include/linux/of.h ++++ b/include/linux/of.h +@@ -889,7 +889,7 @@ static inline int of_parse_phandle_with_ + return -ENOSYS; + } + +-static inline int of_count_phandle_with_args(struct device_node *np, ++static inline int of_count_phandle_with_args(const struct device_node *np, + const char *list_name, + const char *cells_name) + { diff --git a/target/linux/generic/backport-5.10/826-v5.17-of-base-make-small-of_parse_phandle-variants-static-.patch b/target/linux/generic/backport-5.10/826-v5.17-of-base-make-small-of_parse_phandle-variants-static-.patch new file mode 100644 index 0000000000..b6ef67dfa7 --- /dev/null +++ b/target/linux/generic/backport-5.10/826-v5.17-of-base-make-small-of_parse_phandle-variants-static-.patch @@ -0,0 +1,359 @@ +From 66a8f7f04979f4ad739085f01d99c8caf620b4f5 Mon Sep 17 00:00:00 2001 +From: Michael Walle <michael@walle.cc> +Date: Tue, 18 Jan 2022 18:35:02 +0100 +Subject: [PATCH] of: base: make small of_parse_phandle() variants static + inline + +Make all the smaller variants of the of_parse_phandle() static inline. +This also let us remove the empty function stubs if CONFIG_OF is not +defined. + +Suggested-by: Rob Herring <robh@kernel.org> +Signed-off-by: Michael Walle <michael@walle.cc> +[robh: move index < 0 check into __of_parse_phandle_with_args] +Signed-off-by: Rob Herring <robh@kernel.org> +Link: https://lore.kernel.org/r/20220118173504.2867523-2-michael@walle.cc +--- + drivers/of/base.c | 131 +++------------------------------------ + include/linux/of.h | 148 ++++++++++++++++++++++++++++++++++++--------- + 2 files changed, 129 insertions(+), 150 deletions(-) + +--- a/drivers/of/base.c ++++ b/drivers/of/base.c +@@ -1372,15 +1372,18 @@ int of_phandle_iterator_args(struct of_p + return count; + } + +-static int __of_parse_phandle_with_args(const struct device_node *np, +- const char *list_name, +- const char *cells_name, +- int cell_count, int index, +- struct of_phandle_args *out_args) ++int __of_parse_phandle_with_args(const struct device_node *np, ++ const char *list_name, ++ const char *cells_name, ++ int cell_count, int index, ++ struct of_phandle_args *out_args) + { + struct of_phandle_iterator it; + int rc, cur_index = 0; + ++ if (index < 0) ++ return -EINVAL; ++ + /* Loop over the phandles until all the requested entry is found */ + of_for_each_phandle(&it, rc, np, list_name, cells_name, cell_count) { + /* +@@ -1423,82 +1426,7 @@ static int __of_parse_phandle_with_args( + of_node_put(it.node); + return rc; + } +- +-/** +- * of_parse_phandle - Resolve a phandle property to a device_node pointer +- * @np: Pointer to device node holding phandle property +- * @phandle_name: Name of property holding a phandle value +- * @index: For properties holding a table of phandles, this is the index into +- * the table +- * +- * 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) +-{ +- struct of_phandle_args args; +- +- if (index < 0) +- return NULL; +- +- if (__of_parse_phandle_with_args(np, phandle_name, NULL, 0, +- index, &args)) +- return NULL; +- +- return args.np; +-} +-EXPORT_SYMBOL(of_parse_phandle); +- +-/** +- * of_parse_phandle_with_args() - Find a node pointed by phandle in a list +- * @np: pointer to a device tree node containing a list +- * @list_name: property name that contains a list +- * @cells_name: property name that specifies phandles' arguments count +- * @index: index of a phandle to parse out +- * @out_args: optional pointer to output arguments structure (will be filled) +- * +- * This function is useful to parse lists of phandles and their arguments. +- * Returns 0 on success and fills out_args, on error returns appropriate +- * errno value. +- * +- * Caller is responsible to call of_node_put() on the returned out_args->np +- * pointer. +- * +- * Example:: +- * +- * 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); +- */ +-int of_parse_phandle_with_args(const struct device_node *np, const char *list_name, +- const char *cells_name, int index, +- struct of_phandle_args *out_args) +-{ +- int cell_count = -1; +- +- if (index < 0) +- return -EINVAL; +- +- /* If cells_name is NULL we assume a cell count of 0 */ +- if (!cells_name) +- cell_count = 0; +- +- return __of_parse_phandle_with_args(np, list_name, cells_name, +- cell_count, index, out_args); +-} +-EXPORT_SYMBOL(of_parse_phandle_with_args); ++EXPORT_SYMBOL(__of_parse_phandle_with_args); + + /** + * of_parse_phandle_with_args_map() - Find a node pointed by phandle in a list and remap it +@@ -1685,47 +1613,6 @@ free: + EXPORT_SYMBOL(of_parse_phandle_with_args_map); + + /** +- * of_parse_phandle_with_fixed_args() - Find a node pointed by phandle in a list +- * @np: pointer to a device tree node containing a list +- * @list_name: property name that contains a list +- * @cell_count: number of argument cells following the phandle +- * @index: index of a phandle to parse out +- * @out_args: optional pointer to output arguments structure (will be filled) +- * +- * This function is useful to parse lists of phandles and their arguments. +- * Returns 0 on success and fills out_args, on error returns appropriate +- * errno value. +- * +- * Caller is responsible to call of_node_put() on the returned out_args->np +- * pointer. +- * +- * Example:: +- * +- * phandle1: node1 { +- * }; +- * +- * phandle2: node2 { +- * }; +- * +- * node3 { +- * list = <&phandle1 0 2 &phandle2 2 3>; +- * }; +- * +- * To get a device_node of the ``node2`` node you may call this: +- * of_parse_phandle_with_fixed_args(node3, "list", 2, 1, &args); +- */ +-int of_parse_phandle_with_fixed_args(const struct device_node *np, +- const char *list_name, int cell_count, +- int index, struct of_phandle_args *out_args) +-{ +- if (index < 0) +- return -EINVAL; +- return __of_parse_phandle_with_args(np, list_name, NULL, cell_count, +- index, out_args); +-} +-EXPORT_SYMBOL(of_parse_phandle_with_fixed_args); +- +-/** + * of_count_phandle_with_args() - Find the number of phandles references in a property + * @np: pointer to a device tree node containing a list + * @list_name: property name that contains a list +--- a/include/linux/of.h ++++ b/include/linux/of.h +@@ -363,18 +363,12 @@ extern const struct of_device_id *of_mat + const struct of_device_id *matches, const struct device_node *node); + extern int of_modalias_node(struct device_node *node, char *modalias, int len); + extern void of_print_phandle_args(const char *msg, const struct of_phandle_args *args); +-extern struct device_node *of_parse_phandle(const struct device_node *np, +- const char *phandle_name, +- int index); +-extern int of_parse_phandle_with_args(const struct device_node *np, +- const char *list_name, const char *cells_name, int index, +- struct of_phandle_args *out_args); ++extern int __of_parse_phandle_with_args(const struct device_node *np, ++ const char *list_name, const char *cells_name, int cell_count, ++ int index, struct of_phandle_args *out_args); + extern int of_parse_phandle_with_args_map(const struct device_node *np, + const char *list_name, const char *stem_name, int index, + struct of_phandle_args *out_args); +-extern int of_parse_phandle_with_fixed_args(const struct device_node *np, +- const char *list_name, int cells_count, int index, +- struct of_phandle_args *out_args); + extern int of_count_phandle_with_args(const struct device_node *np, + const char *list_name, const char *cells_name); + +@@ -857,18 +851,12 @@ static inline int of_property_read_strin + return -ENOSYS; + } + +-static inline struct device_node *of_parse_phandle(const struct device_node *np, +- const char *phandle_name, +- int index) +-{ +- return NULL; +-} +- +-static inline int of_parse_phandle_with_args(const struct device_node *np, +- const char *list_name, +- const char *cells_name, +- int index, +- struct of_phandle_args *out_args) ++static inline int __of_parse_phandle_with_args(const struct device_node *np, ++ const char *list_name, ++ const char *cells_name, ++ int cell_count, ++ int index, ++ struct of_phandle_args *out_args) + { + return -ENOSYS; + } +@@ -882,13 +870,6 @@ static inline int of_parse_phandle_with_ + return -ENOSYS; + } + +-static inline int of_parse_phandle_with_fixed_args(const struct device_node *np, +- const char *list_name, int cells_count, int index, +- struct of_phandle_args *out_args) +-{ +- return -ENOSYS; +-} +- + static inline int of_count_phandle_with_args(const struct device_node *np, + const char *list_name, + const char *cells_name) +@@ -1065,6 +1046,117 @@ static inline bool of_node_is_type(const + } + + /** ++ * of_parse_phandle - Resolve a phandle property to a device_node pointer ++ * @np: Pointer to device node holding phandle property ++ * @phandle_name: Name of property holding a phandle value ++ * @index: For properties holding a table of phandles, this is the index into ++ * the table ++ * ++ * Return: The device_node pointer with refcount incremented. Use ++ * of_node_put() on it when done. ++ */ ++static inline struct device_node *of_parse_phandle(const struct device_node *np, ++ const char *phandle_name, ++ int index) ++{ ++ struct of_phandle_args args; ++ ++ if (__of_parse_phandle_with_args(np, phandle_name, NULL, 0, ++ index, &args)) ++ return NULL; ++ ++ return args.np; ++} ++ ++/** ++ * of_parse_phandle_with_args() - Find a node pointed by phandle in a list ++ * @np: pointer to a device tree node containing a list ++ * @list_name: property name that contains a list ++ * @cells_name: property name that specifies phandles' arguments count ++ * @index: index of a phandle to parse out ++ * @out_args: optional pointer to output arguments structure (will be filled) ++ * ++ * This function is useful to parse lists of phandles and their arguments. ++ * Returns 0 on success and fills out_args, on error returns appropriate ++ * errno value. ++ * ++ * Caller is responsible to call of_node_put() on the returned out_args->np ++ * pointer. ++ * ++ * Example:: ++ * ++ * 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); ++ */ ++static inline int of_parse_phandle_with_args(const struct device_node *np, ++ const char *list_name, ++ const char *cells_name, ++ int index, ++ struct of_phandle_args *out_args) ++{ ++ int cell_count = -1; ++ ++ /* If cells_name is NULL we assume a cell count of 0 */ ++ if (!cells_name) ++ cell_count = 0; ++ ++ return __of_parse_phandle_with_args(np, list_name, cells_name, ++ cell_count, index, out_args); ++} ++ ++/** ++ * of_parse_phandle_with_fixed_args() - Find a node pointed by phandle in a list ++ * @np: pointer to a device tree node containing a list ++ * @list_name: property name that contains a list ++ * @cell_count: number of argument cells following the phandle ++ * @index: index of a phandle to parse out ++ * @out_args: optional pointer to output arguments structure (will be filled) ++ * ++ * This function is useful to parse lists of phandles and their arguments. ++ * Returns 0 on success and fills out_args, on error returns appropriate ++ * errno value. ++ * ++ * Caller is responsible to call of_node_put() on the returned out_args->np ++ * pointer. ++ * ++ * Example:: ++ * ++ * phandle1: node1 { ++ * }; ++ * ++ * phandle2: node2 { ++ * }; ++ * ++ * node3 { ++ * list = <&phandle1 0 2 &phandle2 2 3>; ++ * }; ++ * ++ * To get a device_node of the ``node2`` node you may call this: ++ * of_parse_phandle_with_fixed_args(node3, "list", 2, 1, &args); ++ */ ++static inline int of_parse_phandle_with_fixed_args(const struct device_node *np, ++ const char *list_name, ++ int cell_count, ++ int index, ++ struct of_phandle_args *out_args) ++{ ++ return __of_parse_phandle_with_args(np, list_name, NULL, cell_count, ++ index, out_args); ++} ++ ++/** + * of_property_count_u8_elems - Count the number of u8 elements in a property + * + * @np: device node from which the property value is to be read. diff --git a/target/linux/generic/backport-5.10/827-v6.3-0001-of-base-add-of_parse_phandle_with_optional_args.patch b/target/linux/generic/backport-5.10/827-v6.3-0001-of-base-add-of_parse_phandle_with_optional_args.patch new file mode 100644 index 0000000000..a3df3ce75c --- /dev/null +++ b/target/linux/generic/backport-5.10/827-v6.3-0001-of-base-add-of_parse_phandle_with_optional_args.patch @@ -0,0 +1,56 @@ +From 8eddceb280f5deb8046fcb660de9f9f683b408b9 Mon Sep 17 00:00:00 2001 +From: Michael Walle <michael@walle.cc> +Date: Tue, 6 Dec 2022 21:07:21 +0100 +Subject: [PATCH] of: base: add of_parse_phandle_with_optional_args() + +Add a new variant of the of_parse_phandle_with_args() which treats the +cells name as optional. If it's missing, it is assumed that the phandle +has no arguments. + +Up until now, a nvmem node didn't have any arguments, so all the device +trees haven't any '#*-cells' property. But there is a need for an +additional argument for the phandle, for which we need a '#*-cells' +property. Therefore, we need to support nvmem nodes with and without +this property. + +Signed-off-by: Michael Walle <michael@walle.cc> +Reviewed-by: Rob Herring <robh@kernel.org> +Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> +--- + include/linux/of.h | 25 +++++++++++++++++++++++++ + 1 file changed, 25 insertions(+) + +--- a/include/linux/of.h ++++ b/include/linux/of.h +@@ -1157,6 +1157,31 @@ static inline int of_parse_phandle_with_ + } + + /** ++ * of_parse_phandle_with_optional_args() - Find a node pointed by phandle in a list ++ * @np: pointer to a device tree node containing a list ++ * @list_name: property name that contains a list ++ * @cells_name: property name that specifies phandles' arguments count ++ * @index: index of a phandle to parse out ++ * @out_args: optional pointer to output arguments structure (will be filled) ++ * ++ * Same as of_parse_phandle_with_args() except that if the cells_name property ++ * is not found, cell_count of 0 is assumed. ++ * ++ * This is used to useful, if you have a phandle which didn't have arguments ++ * before and thus doesn't have a '#*-cells' property but is now migrated to ++ * having arguments while retaining backwards compatibility. ++ */ ++static inline int of_parse_phandle_with_optional_args(const struct device_node *np, ++ const char *list_name, ++ const char *cells_name, ++ int index, ++ struct of_phandle_args *out_args) ++{ ++ return __of_parse_phandle_with_args(np, list_name, cells_name, ++ 0, index, out_args); ++} ++ ++/** + * of_property_count_u8_elems - Count the number of u8 elements in a property + * + * @np: device node from which the property value is to be read. diff --git a/target/linux/generic/backport-5.10/827-v6.3-0002-of-property-make-.-cells-optional-for-simple-props.patch b/target/linux/generic/backport-5.10/827-v6.3-0002-of-property-make-.-cells-optional-for-simple-props.patch new file mode 100644 index 0000000000..95b0e60d56 --- /dev/null +++ b/target/linux/generic/backport-5.10/827-v6.3-0002-of-property-make-.-cells-optional-for-simple-props.patch @@ -0,0 +1,32 @@ +From 4f4145c9fee8c7a445dbbbadceccce5391e6b287 Mon Sep 17 00:00:00 2001 +From: Michael Walle <michael@walle.cc> +Date: Tue, 6 Dec 2022 21:07:22 +0100 +Subject: [PATCH] of: property: make #.*-cells optional for simple props + +Sometimes, future bindings for phandles will get additional arguments. +Thus the target node of the phandle will need a new #.*-cells property. +To be backwards compatible, this needs to be optional. + +Prepare the DEFINE_SIMPLE_PROPS() to handle the cells name as optional. + +Signed-off-by: Michael Walle <michael@walle.cc> +Tested-by: Miquel Raynal <miquel.raynal@bootlin.com> +Reviewed-by: Rob Herring <robh@kernel.org> +Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> +--- + drivers/of/property.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +--- a/drivers/of/property.c ++++ b/drivers/of/property.c +@@ -1267,8 +1267,8 @@ static struct device_node *parse_suffix_ + if (strcmp_suffix(prop_name, suffix)) + return NULL; + +- if (of_parse_phandle_with_args(np, prop_name, cells_name, index, +- &sup_args)) ++ if (__of_parse_phandle_with_args(np, prop_name, cells_name, 0, index, ++ &sup_args)) + return NULL; + + return sup_args.np; diff --git a/target/linux/generic/backport-5.10/827-v6.3-0003-of-property-add-nvmem-cell-cells-property.patch b/target/linux/generic/backport-5.10/827-v6.3-0003-of-property-add-nvmem-cell-cells-property.patch new file mode 100644 index 0000000000..5d1df95ff1 --- /dev/null +++ b/target/linux/generic/backport-5.10/827-v6.3-0003-of-property-add-nvmem-cell-cells-property.patch @@ -0,0 +1,28 @@ +From 9cf9486a6a7e8a3d76154d0c506051ba3740e8b6 Mon Sep 17 00:00:00 2001 +From: Michael Walle <michael@walle.cc> +Date: Tue, 6 Dec 2022 21:07:23 +0100 +Subject: [PATCH] of: property: add #nvmem-cell-cells property + +Bindings describe the new '#nvmem-cell-cells' property. Now that the +arguments count property is optional, we just add this property to the +nvmem-cells. + +Signed-off-by: Michael Walle <michael@walle.cc> +Tested-by: Miquel Raynal <miquel.raynal@bootlin.com> +Reviewed-by: Rob Herring <robh@kernel.org> +Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> +--- + drivers/of/property.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/of/property.c ++++ b/drivers/of/property.c +@@ -1314,7 +1314,7 @@ DEFINE_SIMPLE_PROP(hwlocks, "hwlocks", " + DEFINE_SIMPLE_PROP(extcon, "extcon", NULL) + DEFINE_SIMPLE_PROP(interrupts_extended, "interrupts-extended", + "#interrupt-cells") +-DEFINE_SIMPLE_PROP(nvmem_cells, "nvmem-cells", NULL) ++DEFINE_SIMPLE_PROP(nvmem_cells, "nvmem-cells", "#nvmem-cell-cells") + DEFINE_SIMPLE_PROP(phys, "phys", "#phy-cells") + DEFINE_SIMPLE_PROP(wakeup_parent, "wakeup-parent", NULL) + DEFINE_SIMPLE_PROP(pinctrl0, "pinctrl-0", NULL) diff --git a/target/linux/generic/backport-5.15/826-v5.17-of-base-make-small-of_parse_phandle-variants-static-.patch b/target/linux/generic/backport-5.15/826-v5.17-of-base-make-small-of_parse_phandle-variants-static-.patch new file mode 100644 index 0000000000..b00cf57419 --- /dev/null +++ b/target/linux/generic/backport-5.15/826-v5.17-of-base-make-small-of_parse_phandle-variants-static-.patch @@ -0,0 +1,359 @@ +From 66a8f7f04979f4ad739085f01d99c8caf620b4f5 Mon Sep 17 00:00:00 2001 +From: Michael Walle <michael@walle.cc> +Date: Tue, 18 Jan 2022 18:35:02 +0100 +Subject: [PATCH] of: base: make small of_parse_phandle() variants static + inline + +Make all the smaller variants of the of_parse_phandle() static inline. +This also let us remove the empty function stubs if CONFIG_OF is not +defined. + +Suggested-by: Rob Herring <robh@kernel.org> +Signed-off-by: Michael Walle <michael@walle.cc> +[robh: move index < 0 check into __of_parse_phandle_with_args] +Signed-off-by: Rob Herring <robh@kernel.org> +Link: https://lore.kernel.org/r/20220118173504.2867523-2-michael@walle.cc +--- + drivers/of/base.c | 131 +++------------------------------------ + include/linux/of.h | 148 ++++++++++++++++++++++++++++++++++++--------- + 2 files changed, 129 insertions(+), 150 deletions(-) + +--- a/drivers/of/base.c ++++ b/drivers/of/base.c +@@ -1371,15 +1371,18 @@ int of_phandle_iterator_args(struct of_p + return count; + } + +-static int __of_parse_phandle_with_args(const struct device_node *np, +- const char *list_name, +- const char *cells_name, +- int cell_count, int index, +- struct of_phandle_args *out_args) ++int __of_parse_phandle_with_args(const struct device_node *np, ++ const char *list_name, ++ const char *cells_name, ++ int cell_count, int index, ++ struct of_phandle_args *out_args) + { + struct of_phandle_iterator it; + int rc, cur_index = 0; + ++ if (index < 0) ++ return -EINVAL; ++ + /* Loop over the phandles until all the requested entry is found */ + of_for_each_phandle(&it, rc, np, list_name, cells_name, cell_count) { + /* +@@ -1422,82 +1425,7 @@ static int __of_parse_phandle_with_args( + of_node_put(it.node); + return rc; + } +- +-/** +- * of_parse_phandle - Resolve a phandle property to a device_node pointer +- * @np: Pointer to device node holding phandle property +- * @phandle_name: Name of property holding a phandle value +- * @index: For properties holding a table of phandles, this is the index into +- * the table +- * +- * 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) +-{ +- struct of_phandle_args args; +- +- if (index < 0) +- return NULL; +- +- if (__of_parse_phandle_with_args(np, phandle_name, NULL, 0, +- index, &args)) +- return NULL; +- +- return args.np; +-} +-EXPORT_SYMBOL(of_parse_phandle); +- +-/** +- * of_parse_phandle_with_args() - Find a node pointed by phandle in a list +- * @np: pointer to a device tree node containing a list +- * @list_name: property name that contains a list +- * @cells_name: property name that specifies phandles' arguments count +- * @index: index of a phandle to parse out +- * @out_args: optional pointer to output arguments structure (will be filled) +- * +- * This function is useful to parse lists of phandles and their arguments. +- * Returns 0 on success and fills out_args, on error returns appropriate +- * errno value. +- * +- * Caller is responsible to call of_node_put() on the returned out_args->np +- * pointer. +- * +- * Example:: +- * +- * 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); +- */ +-int of_parse_phandle_with_args(const struct device_node *np, const char *list_name, +- const char *cells_name, int index, +- struct of_phandle_args *out_args) +-{ +- int cell_count = -1; +- +- if (index < 0) +- return -EINVAL; +- +- /* If cells_name is NULL we assume a cell count of 0 */ +- if (!cells_name) +- cell_count = 0; +- +- return __of_parse_phandle_with_args(np, list_name, cells_name, +- cell_count, index, out_args); +-} +-EXPORT_SYMBOL(of_parse_phandle_with_args); ++EXPORT_SYMBOL(__of_parse_phandle_with_args); + + /** + * of_parse_phandle_with_args_map() - Find a node pointed by phandle in a list and remap it +@@ -1684,47 +1612,6 @@ free: + EXPORT_SYMBOL(of_parse_phandle_with_args_map); + + /** +- * of_parse_phandle_with_fixed_args() - Find a node pointed by phandle in a list +- * @np: pointer to a device tree node containing a list +- * @list_name: property name that contains a list +- * @cell_count: number of argument cells following the phandle +- * @index: index of a phandle to parse out +- * @out_args: optional pointer to output arguments structure (will be filled) +- * +- * This function is useful to parse lists of phandles and their arguments. +- * Returns 0 on success and fills out_args, on error returns appropriate +- * errno value. +- * +- * Caller is responsible to call of_node_put() on the returned out_args->np +- * pointer. +- * +- * Example:: +- * +- * phandle1: node1 { +- * }; +- * +- * phandle2: node2 { +- * }; +- * +- * node3 { +- * list = <&phandle1 0 2 &phandle2 2 3>; +- * }; +- * +- * To get a device_node of the ``node2`` node you may call this: +- * of_parse_phandle_with_fixed_args(node3, "list", 2, 1, &args); +- */ +-int of_parse_phandle_with_fixed_args(const struct device_node *np, +- const char *list_name, int cell_count, +- int index, struct of_phandle_args *out_args) +-{ +- if (index < 0) +- return -EINVAL; +- return __of_parse_phandle_with_args(np, list_name, NULL, cell_count, +- index, out_args); +-} +-EXPORT_SYMBOL(of_parse_phandle_with_fixed_args); +- +-/** + * of_count_phandle_with_args() - Find the number of phandles references in a property + * @np: pointer to a device tree node containing a list + * @list_name: property name that contains a list +--- a/include/linux/of.h ++++ b/include/linux/of.h +@@ -363,18 +363,12 @@ extern const struct of_device_id *of_mat + const struct of_device_id *matches, const struct device_node *node); + extern int of_modalias_node(struct device_node *node, char *modalias, int len); + extern void of_print_phandle_args(const char *msg, const struct of_phandle_args *args); +-extern struct device_node *of_parse_phandle(const struct device_node *np, +- const char *phandle_name, +- int index); +-extern int of_parse_phandle_with_args(const struct device_node *np, +- const char *list_name, const char *cells_name, int index, +- struct of_phandle_args *out_args); ++extern int __of_parse_phandle_with_args(const struct device_node *np, ++ const char *list_name, const char *cells_name, int cell_count, ++ int index, struct of_phandle_args *out_args); + extern int of_parse_phandle_with_args_map(const struct device_node *np, + const char *list_name, const char *stem_name, int index, + struct of_phandle_args *out_args); +-extern int of_parse_phandle_with_fixed_args(const struct device_node *np, +- const char *list_name, int cells_count, int index, +- struct of_phandle_args *out_args); + extern int of_count_phandle_with_args(const struct device_node *np, + const char *list_name, const char *cells_name); + +@@ -864,18 +858,12 @@ static inline int of_property_read_strin + return -ENOSYS; + } + +-static inline struct device_node *of_parse_phandle(const struct device_node *np, +- const char *phandle_name, +- int index) +-{ +- return NULL; +-} +- +-static inline int of_parse_phandle_with_args(const struct device_node *np, +- const char *list_name, +- const char *cells_name, +- int index, +- struct of_phandle_args *out_args) ++static inline int __of_parse_phandle_with_args(const struct device_node *np, ++ const char *list_name, ++ const char *cells_name, ++ int cell_count, ++ int index, ++ struct of_phandle_args *out_args) + { + return -ENOSYS; + } +@@ -889,13 +877,6 @@ static inline int of_parse_phandle_with_ + return -ENOSYS; + } + +-static inline int of_parse_phandle_with_fixed_args(const struct device_node *np, +- const char *list_name, int cells_count, int index, +- struct of_phandle_args *out_args) +-{ +- return -ENOSYS; +-} +- + static inline int of_count_phandle_with_args(const struct device_node *np, + const char *list_name, + const char *cells_name) +@@ -1077,6 +1058,117 @@ static inline bool of_node_is_type(const + } + + /** ++ * of_parse_phandle - Resolve a phandle property to a device_node pointer ++ * @np: Pointer to device node holding phandle property ++ * @phandle_name: Name of property holding a phandle value ++ * @index: For properties holding a table of phandles, this is the index into ++ * the table ++ * ++ * Return: The device_node pointer with refcount incremented. Use ++ * of_node_put() on it when done. ++ */ ++static inline struct device_node *of_parse_phandle(const struct device_node *np, ++ const char *phandle_name, ++ int index) ++{ ++ struct of_phandle_args args; ++ ++ if (__of_parse_phandle_with_args(np, phandle_name, NULL, 0, ++ index, &args)) ++ return NULL; ++ ++ return args.np; ++} ++ ++/** ++ * of_parse_phandle_with_args() - Find a node pointed by phandle in a list ++ * @np: pointer to a device tree node containing a list ++ * @list_name: property name that contains a list ++ * @cells_name: property name that specifies phandles' arguments count ++ * @index: index of a phandle to parse out ++ * @out_args: optional pointer to output arguments structure (will be filled) ++ * ++ * This function is useful to parse lists of phandles and their arguments. ++ * Returns 0 on success and fills out_args, on error returns appropriate ++ * errno value. ++ * ++ * Caller is responsible to call of_node_put() on the returned out_args->np ++ * pointer. ++ * ++ * Example:: ++ * ++ * 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); ++ */ ++static inline int of_parse_phandle_with_args(const struct device_node *np, ++ const char *list_name, ++ const char *cells_name, ++ int index, ++ struct of_phandle_args *out_args) ++{ ++ int cell_count = -1; ++ ++ /* If cells_name is NULL we assume a cell count of 0 */ ++ if (!cells_name) ++ cell_count = 0; ++ ++ return __of_parse_phandle_with_args(np, list_name, cells_name, ++ cell_count, index, out_args); ++} ++ ++/** ++ * of_parse_phandle_with_fixed_args() - Find a node pointed by phandle in a list ++ * @np: pointer to a device tree node containing a list ++ * @list_name: property name that contains a list ++ * @cell_count: number of argument cells following the phandle ++ * @index: index of a phandle to parse out ++ * @out_args: optional pointer to output arguments structure (will be filled) ++ * ++ * This function is useful to parse lists of phandles and their arguments. ++ * Returns 0 on success and fills out_args, on error returns appropriate ++ * errno value. ++ * ++ * Caller is responsible to call of_node_put() on the returned out_args->np ++ * pointer. ++ * ++ * Example:: ++ * ++ * phandle1: node1 { ++ * }; ++ * ++ * phandle2: node2 { ++ * }; ++ * ++ * node3 { ++ * list = <&phandle1 0 2 &phandle2 2 3>; ++ * }; ++ * ++ * To get a device_node of the ``node2`` node you may call this: ++ * of_parse_phandle_with_fixed_args(node3, "list", 2, 1, &args); ++ */ ++static inline int of_parse_phandle_with_fixed_args(const struct device_node *np, ++ const char *list_name, ++ int cell_count, ++ int index, ++ struct of_phandle_args *out_args) ++{ ++ return __of_parse_phandle_with_args(np, list_name, NULL, cell_count, ++ index, out_args); ++} ++ ++/** + * of_property_count_u8_elems - Count the number of u8 elements in a property + * + * @np: device node from which the property value is to be read. diff --git a/target/linux/generic/backport-5.15/827-v6.3-0001-of-base-add-of_parse_phandle_with_optional_args.patch b/target/linux/generic/backport-5.15/827-v6.3-0001-of-base-add-of_parse_phandle_with_optional_args.patch new file mode 100644 index 0000000000..b829f21cfa --- /dev/null +++ b/target/linux/generic/backport-5.15/827-v6.3-0001-of-base-add-of_parse_phandle_with_optional_args.patch @@ -0,0 +1,56 @@ +From 8eddceb280f5deb8046fcb660de9f9f683b408b9 Mon Sep 17 00:00:00 2001 +From: Michael Walle <michael@walle.cc> +Date: Tue, 6 Dec 2022 21:07:21 +0100 +Subject: [PATCH] of: base: add of_parse_phandle_with_optional_args() + +Add a new variant of the of_parse_phandle_with_args() which treats the +cells name as optional. If it's missing, it is assumed that the phandle +has no arguments. + +Up until now, a nvmem node didn't have any arguments, so all the device +trees haven't any '#*-cells' property. But there is a need for an +additional argument for the phandle, for which we need a '#*-cells' +property. Therefore, we need to support nvmem nodes with and without +this property. + +Signed-off-by: Michael Walle <michael@walle.cc> +Reviewed-by: Rob Herring <robh@kernel.org> +Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> +--- + include/linux/of.h | 25 +++++++++++++++++++++++++ + 1 file changed, 25 insertions(+) + +--- a/include/linux/of.h ++++ b/include/linux/of.h +@@ -1169,6 +1169,31 @@ static inline int of_parse_phandle_with_ + } + + /** ++ * of_parse_phandle_with_optional_args() - Find a node pointed by phandle in a list ++ * @np: pointer to a device tree node containing a list ++ * @list_name: property name that contains a list ++ * @cells_name: property name that specifies phandles' arguments count ++ * @index: index of a phandle to parse out ++ * @out_args: optional pointer to output arguments structure (will be filled) ++ * ++ * Same as of_parse_phandle_with_args() except that if the cells_name property ++ * is not found, cell_count of 0 is assumed. ++ * ++ * This is used to useful, if you have a phandle which didn't have arguments ++ * before and thus doesn't have a '#*-cells' property but is now migrated to ++ * having arguments while retaining backwards compatibility. ++ */ ++static inline int of_parse_phandle_with_optional_args(const struct device_node *np, ++ const char *list_name, ++ const char *cells_name, ++ int index, ++ struct of_phandle_args *out_args) ++{ ++ return __of_parse_phandle_with_args(np, list_name, cells_name, ++ 0, index, out_args); ++} ++ ++/** + * of_property_count_u8_elems - Count the number of u8 elements in a property + * + * @np: device node from which the property value is to be read. diff --git a/target/linux/generic/backport-5.15/827-v6.3-0002-of-property-make-.-cells-optional-for-simple-props.patch b/target/linux/generic/backport-5.15/827-v6.3-0002-of-property-make-.-cells-optional-for-simple-props.patch new file mode 100644 index 0000000000..4cf11ca34b --- /dev/null +++ b/target/linux/generic/backport-5.15/827-v6.3-0002-of-property-make-.-cells-optional-for-simple-props.patch @@ -0,0 +1,32 @@ +From 4f4145c9fee8c7a445dbbbadceccce5391e6b287 Mon Sep 17 00:00:00 2001 +From: Michael Walle <michael@walle.cc> +Date: Tue, 6 Dec 2022 21:07:22 +0100 +Subject: [PATCH] of: property: make #.*-cells optional for simple props + +Sometimes, future bindings for phandles will get additional arguments. +Thus the target node of the phandle will need a new #.*-cells property. +To be backwards compatible, this needs to be optional. + +Prepare the DEFINE_SIMPLE_PROPS() to handle the cells name as optional. + +Signed-off-by: Michael Walle <michael@walle.cc> +Tested-by: Miquel Raynal <miquel.raynal@bootlin.com> +Reviewed-by: Rob Herring <robh@kernel.org> +Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> +--- + drivers/of/property.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +--- a/drivers/of/property.c ++++ b/drivers/of/property.c +@@ -1227,8 +1227,8 @@ static struct device_node *parse_suffix_ + if (strcmp_suffix(prop_name, suffix)) + return NULL; + +- if (of_parse_phandle_with_args(np, prop_name, cells_name, index, +- &sup_args)) ++ if (__of_parse_phandle_with_args(np, prop_name, cells_name, 0, index, ++ &sup_args)) + return NULL; + + return sup_args.np; diff --git a/target/linux/generic/backport-5.15/827-v6.3-0003-of-property-add-nvmem-cell-cells-property.patch b/target/linux/generic/backport-5.15/827-v6.3-0003-of-property-add-nvmem-cell-cells-property.patch new file mode 100644 index 0000000000..8c047e685d --- /dev/null +++ b/target/linux/generic/backport-5.15/827-v6.3-0003-of-property-add-nvmem-cell-cells-property.patch @@ -0,0 +1,28 @@ +From 9cf9486a6a7e8a3d76154d0c506051ba3740e8b6 Mon Sep 17 00:00:00 2001 +From: Michael Walle <michael@walle.cc> +Date: Tue, 6 Dec 2022 21:07:23 +0100 +Subject: [PATCH] of: property: add #nvmem-cell-cells property + +Bindings describe the new '#nvmem-cell-cells' property. Now that the +arguments count property is optional, we just add this property to the +nvmem-cells. + +Signed-off-by: Michael Walle <michael@walle.cc> +Tested-by: Miquel Raynal <miquel.raynal@bootlin.com> +Reviewed-by: Rob Herring <robh@kernel.org> +Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> +--- + drivers/of/property.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/of/property.c ++++ b/drivers/of/property.c +@@ -1276,7 +1276,7 @@ DEFINE_SIMPLE_PROP(dmas, "dmas", "#dma-c + DEFINE_SIMPLE_PROP(power_domains, "power-domains", "#power-domain-cells") + DEFINE_SIMPLE_PROP(hwlocks, "hwlocks", "#hwlock-cells") + DEFINE_SIMPLE_PROP(extcon, "extcon", NULL) +-DEFINE_SIMPLE_PROP(nvmem_cells, "nvmem-cells", NULL) ++DEFINE_SIMPLE_PROP(nvmem_cells, "nvmem-cells", "#nvmem-cell-cells") + DEFINE_SIMPLE_PROP(phys, "phys", "#phy-cells") + DEFINE_SIMPLE_PROP(wakeup_parent, "wakeup-parent", NULL) + DEFINE_SIMPLE_PROP(pinctrl0, "pinctrl-0", NULL) diff --git a/target/linux/generic/hack-5.10/920-device_tree_cmdline.patch b/target/linux/generic/hack-5.10/920-device_tree_cmdline.patch index 17d3f2ffd5..dbba45b41c 100644 --- a/target/linux/generic/hack-5.10/920-device_tree_cmdline.patch +++ b/target/linux/generic/hack-5.10/920-device_tree_cmdline.patch @@ -16,7 +16,7 @@ SVN-Revision: 36780 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c -@@ -1055,6 +1055,9 @@ int __init early_init_dt_scan_chosen(uns +@@ -1054,6 +1054,9 @@ int __init early_init_dt_scan_chosen(uns p = of_get_flat_dt_prop(node, "bootargs", &l); if (p != NULL && l > 0) strlcpy(data, p, min(l, COMMAND_LINE_SIZE)); |