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GET /api/patches/2218595/?format=api
{ "id": 2218595, "url": "http://patchwork.ozlabs.org/api/patches/2218595/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/20260401-casey-ccf-compat-v2-4-414d5b7f040b@linaro.org/", "project": { "id": 18, "url": "http://patchwork.ozlabs.org/api/projects/18/?format=api", "name": "U-Boot", "link_name": "uboot", "list_id": "u-boot.lists.denx.de", "list_email": "u-boot@lists.denx.de", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260401-casey-ccf-compat-v2-4-414d5b7f040b@linaro.org>", "list_archive_url": null, "date": "2026-04-01T14:15:20", "name": "[v2,04/11] ofnode: add read_u64_array and count_elems_of_size", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "389c6ffaf05c9c1fd235eac63f370d0ea52727a4", "submitter": { "id": 90679, "url": "http://patchwork.ozlabs.org/api/people/90679/?format=api", "name": "Casey Connolly", "email": "casey.connolly@linaro.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/20260401-casey-ccf-compat-v2-4-414d5b7f040b@linaro.org/mbox/", "series": [ { "id": 498341, "url": "http://patchwork.ozlabs.org/api/series/498341/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=498341", "date": "2026-04-01T14:15:17", "name": "Linux compat improvements and CCF prep", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/498341/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2218595/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2218595/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<u-boot-bounces@lists.denx.de>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=linaro.org header.i=@linaro.org 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"Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "Message-Id": "<20260401-casey-ccf-compat-v2-4-414d5b7f040b@linaro.org>", "References": "<20260401-casey-ccf-compat-v2-0-414d5b7f040b@linaro.org>", "In-Reply-To": "<20260401-casey-ccf-compat-v2-0-414d5b7f040b@linaro.org>", "To": "u-boot@lists.denx.de", "Cc": "Tom Rini <trini@konsulko.com>,\n Casey Connolly <casey.connolly@linaro.org>,\n Ilias Apalodimas <ilias.apalodimas@linaro.org>,\n Simon Glass <sjg@chromium.org>,\n Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>,\n Romain Gantois <romain.gantois@bootlin.com>,\n Andrew Goodbody <andrew.goodbody@linaro.org>,\n Patrice Chotard <patrice.chotard@foss.st.com>,\n Raymond Mao <raymondmaoca@gmail.com>, Peng Fan <peng.fan@nxp.com>", "X-Mailer": "b4 0.15-dev-47773", "X-Developer-Signature": "v=1; a=openpgp-sha256; l=11186;\n i=casey.connolly@linaro.org; h=from:subject:message-id;\n bh=4U4486dk/kYnPVEPw0EBh1G48lAL739YPPX7748xid0=;\n b=owGbwMvMwCFYaeA6f6eBkTjjabUkhsyzGpX/zrJ/OBCzZe2KNMW6+TMqg6oV7Itt59wKTpQ6v\n +ro8iTZjlIWBkEOBlkxRRbxE8ssm9ZettfYvuACzBxWJpAhDFycAjARwTeMDAskhTwZt7c8ubBo\n UoyTpvy1rOvl+Ycmh/h0HfzOevn4HgdGhiWzzS6YWTw4tkXZdV5ua/uLK+FdmhXBKxrqNwgr5KZ\n kHQEA", "X-Developer-Key": "i=casey.connolly@linaro.org; a=openpgp;\n fpr=83B24DA7FE145076BC38BB250CD904EB673A7C47", "X-BeenThere": "u-boot@lists.denx.de", "X-Mailman-Version": "2.1.39", "Precedence": "list", "List-Id": "U-Boot discussion <u-boot.lists.denx.de>", "List-Unsubscribe": "<https://lists.denx.de/options/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=unsubscribe>", "List-Archive": "<https://lists.denx.de/pipermail/u-boot/>", "List-Post": "<mailto:u-boot@lists.denx.de>", "List-Help": "<mailto:u-boot-request@lists.denx.de?subject=help>", "List-Subscribe": "<https://lists.denx.de/listinfo/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=subscribe>", "Errors-To": "u-boot-bounces@lists.denx.de", "Sender": "\"U-Boot\" <u-boot-bounces@lists.denx.de>", "X-Virus-Scanned": "clamav-milter 0.103.8 at phobos.denx.de", "X-Virus-Status": "Clean" }, "content": "These are similar to their Linux counterparts, adding helpers\nfor reading arrays of 64-bit values with of_access and fdtdec\nimplementations.\n\nSigned-off-by: Casey Connolly <casey.connolly@linaro.org>\n---\n drivers/core/of_access.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++\n drivers/core/ofnode.c | 48 ++++++++++++++++++++++++++++++++++++++++++++\n include/dm/of_access.h | 20 +++++++++++++++++++\n include/dm/ofnode.h | 50 ++++++++++++++++++++++++++++++++++++++++++++++\n include/fdtdec.h | 16 +++++++++++++++\n lib/fdtdec.c | 18 +++++++++++++++++\n 6 files changed, 204 insertions(+)", "diff": "diff --git a/drivers/core/of_access.c b/drivers/core/of_access.c\nindex b11e36202c15..969492aae37c 100644\n--- a/drivers/core/of_access.c\n+++ b/drivers/core/of_access.c\n@@ -597,8 +597,27 @@ int of_read_u64(const struct device_node *np, const char *propname, u64 *outp)\n {\n \treturn of_read_u64_index(np, propname, 0, outp);\n }\n \n+int of_read_u64_array(const struct device_node *np, const char *propname,\n+\t\t u64 *out_values, size_t sz)\n+{\n+\tconst __be64 *val;\n+\n+\tlog_debug(\"%s: %s: \", __func__, propname);\n+\tval = of_find_property_value_of_size(np, propname,\n+\t\t\t\t\t sz * sizeof(*out_values));\n+\n+\tif (IS_ERR(val))\n+\t\treturn PTR_ERR(val);\n+\n+\tlog_debug(\"size %zd\\n\", sz);\n+\twhile (sz--)\n+\t\t*out_values++ = be64_to_cpup(val++);\n+\n+\treturn 0;\n+}\n+\n int of_property_match_string(const struct device_node *np, const char *propname,\n \t\t\t const char *string)\n {\n \tint len = 0;\n@@ -844,8 +863,41 @@ int of_count_phandle_with_args(const struct device_node *np,\n \treturn of_root_count_phandle_with_args(NULL, np, list_name, cells_name,\n \t\t\t\t\t cell_count);\n }\n \n+/**\n+ * of_property_count_elems_of_size - Count the number of elements in a property\n+ *\n+ * @np:\t\tdevice node from which the property value is to be read.\n+ * @propname:\tname of the property to be searched.\n+ * @elem_size:\tsize of the individual element\n+ *\n+ * Search for a property in a device node and count the number of elements of\n+ * size elem_size in it.\n+ *\n+ * Return: The number of elements on sucess, -EINVAL if the property does not\n+ * exist or its length does not match a multiple of elem_size and -ENODATA if\n+ * the property does not have a value.\n+ */\n+int of_property_count_elems_of_size(const struct device_node *np,\n+\t\t\t\tconst char *propname, int elem_size)\n+{\n+\tconst struct property *prop = of_find_property(np, propname, NULL);\n+\n+\tif (!prop)\n+\t\treturn -EINVAL;\n+\tif (!prop->value)\n+\t\treturn -ENODATA;\n+\n+\tif (prop->length % elem_size != 0) {\n+\t\tpr_err(\"size of %s in node %pOF is not a multiple of %d\\n\",\n+\t\t propname, np, elem_size);\n+\t\treturn -EINVAL;\n+\t}\n+\n+\treturn prop->length / elem_size;\n+}\n+\n static void of_alias_add(struct alias_prop *ap, struct device_node *np,\n \t\t\t int id, const char *stem, int stem_len)\n {\n \tap->np = np;\ndiff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c\nindex 3a36b6fdd031..d605c0f7b7c7 100644\n--- a/drivers/core/ofnode.c\n+++ b/drivers/core/ofnode.c\n@@ -663,8 +663,56 @@ int ofnode_read_u32_array(ofnode node, const char *propname,\n \t\treturn ret;\n \t}\n }\n \n+int ofnode_read_u64_array(ofnode node, const char *propname,\n+\t\t\t u64 *out_values, size_t sz)\n+{\n+\tassert(ofnode_valid(node));\n+\tlog_debug(\"%s: %s: \", __func__, propname);\n+\n+\tif (ofnode_is_np(node)) {\n+\t\treturn of_read_u64_array(ofnode_to_np(node), propname,\n+\t\t\t\t\t out_values, sz);\n+\t} else {\n+\t\tint ret;\n+\n+\t\tret = fdtdec_get_long_array(ofnode_to_fdt(node),\n+\t\t\t\t\t ofnode_to_offset(node), propname,\n+\t\t\t\t\t out_values, sz);\n+\n+\t\t/* get the error right, but space is more important in SPL */\n+\t\tif (!IS_ENABLED(CONFIG_XPL_BUILD)) {\n+\t\t\tif (ret == -FDT_ERR_NOTFOUND)\n+\t\t\t\treturn -EINVAL;\n+\t\t\telse if (ret == -FDT_ERR_BADLAYOUT)\n+\t\t\t\treturn -EOVERFLOW;\n+\t\t}\n+\t\treturn ret;\n+\t}\n+}\n+\n+int ofnode_count_elems_of_size(ofnode node, const char *propname, int elem_size)\n+{\n+\tconst char *prop;\n+\tint len;\n+\tassert(ofnode_valid(node));\n+\n+\tif (ofnode_is_np(node)) {\n+\t\treturn of_property_count_elems_of_size(node.np, propname, elem_size);\n+\t} else {\n+\t\tprop = fdt_getprop(ofnode_to_fdt(node), ofnode_to_offset(node), propname, &len);\n+\t\tif (!prop)\n+\t\t\treturn -ENOENT;\n+\t\tif (len % elem_size != 0) {\n+\t\t\tlog_debug(\"size of %s in node %pOF is not a multiple of %d\\n\",\n+\t\t\t propname, &node, elem_size);\n+\t\t\treturn -EINVAL;\n+\t\t}\n+\t\treturn len / elem_size;\n+\t}\n+}\n+\n #if !CONFIG_IS_ENABLED(DM_INLINE_OFNODE)\n bool ofnode_is_enabled(ofnode node)\n {\n \tif (ofnode_is_np(node)) {\ndiff --git a/include/dm/of_access.h b/include/dm/of_access.h\nindex 44143a5a3917..fe0de73d7e25 100644\n--- a/include/dm/of_access.h\n+++ b/include/dm/of_access.h\n@@ -384,8 +384,25 @@ int of_read_u64(const struct device_node *np, const char *propname, u64 *outp);\n */\n int of_read_u32_array(const struct device_node *np, const char *propname,\n \t\t u32 *out_values, size_t sz);\n \n+/**\n+ * of_read_u64_array() - Find and read an array of 64 bit integers\n+ *\n+ * Search for a property in a device node and read 64-bit value(s) from\n+ * it.\n+ *\n+ * @np:\t\tdevice node from which the property value is to be read.\n+ * @propname:\tname of the property to be searched.\n+ * @out_values:\tpointer to return value, modified only if return value is 0.\n+ * @sz:\t\tnumber of array elements to read\n+ * Return:\n+ * 0 on success, -EINVAL if the property does not exist, or -EOVERFLOW if\n+ * longer than sz.\n+ */\n+int of_read_u64_array(const struct device_node *np, const char *propname,\n+\t\t u64 *out_values, size_t sz);\n+\n /**\n * of_property_match_string() - Find string in a list and return index\n *\n * This function searches a string list property and returns the index\n@@ -615,8 +632,11 @@ int of_parse_phandle_with_args(const struct device_node *np,\n int of_count_phandle_with_args(const struct device_node *np,\n \t\t\t const char *list_name, const char *cells_name,\n \t\t\t int cells_count);\n \n+int of_property_count_elems_of_size(const struct device_node *np,\n+\t\t\t\tconst char *propname, int elem_size);\n+\n /**\n * of_alias_scan() - Scan all properties of the 'aliases' node\n *\n * The function scans all the properties of the 'aliases' node and populates\ndiff --git a/include/dm/ofnode.h b/include/dm/ofnode.h\nindex 120393426dbf..c905e86b2835 100644\n--- a/include/dm/ofnode.h\n+++ b/include/dm/ofnode.h\n@@ -374,8 +374,15 @@ static inline oftree oftree_from_np(struct device_node *root)\n \n \treturn tree;\n }\n \n+/* Dummy put for Linux compat */\n+static inline void ofnode_put(ofnode node)\n+{\n+\tif (ofnode_is_np(node))\n+\t\tof_node_put(node.np);\n+}\n+\n /**\n * oftree_dispose() - Dispose of an oftree\n *\n * This can be used to dispose of a tree that has been created (other than\n@@ -587,8 +594,27 @@ const char *ofnode_read_string(ofnode node, const char *propname);\n */\n int ofnode_read_u32_array(ofnode node, const char *propname,\n \t\t\t u32 *out_values, size_t sz);\n \n+/**\n+ * ofnode_read_u64_array() - Find and read an array of 64 bit integers\n+ *\n+ * @node:\tvalid node reference to read property from\n+ * @propname:\tname of the property to read\n+ * @out_values:\tpointer to return value, modified only if return value is 0\n+ * @sz:\t\tnumber of array elements to read\n+ * Return: 0 on success, -EINVAL if the property does not exist,\n+ * -ENODATA if property does not have a value, and -EOVERFLOW if the\n+ * property data isn't large enough\n+ *\n+ * Search for a property in a device node and read 64-bit value(s) from\n+ * it.\n+ *\n+ * The out_values is modified only if a valid u64 value can be decoded.\n+ */\n+int ofnode_read_u64_array(ofnode node, const char *propname,\n+\t\t\t u64 *out_values, size_t sz);\n+\n /**\n * ofnode_read_bool() - read a boolean value from a property\n *\n * @node:\tvalid node reference to read property from\n@@ -651,8 +677,32 @@ static inline ofnode ofnode_next_subnode(ofnode node)\n \treturn offset_to_ofnode(\n \t\tfdt_next_subnode(gd->fdt_blob, ofnode_to_offset(node)));\n }\n #else\n+\n+/**\n+ * ofnode_count_elems_of_size() - count the number of elements of size @elem_size\n+ * in the property @propname.\n+ *\n+ * @node: ofnode to check\n+ * @propname: the name of the property to count\n+ * @elem_size: the size of each element\n+ *\n+ * Returns: the number of elements or -EINVAL if the property size is not a\n+ * multiple of elem_size.\n+ */\n+int ofnode_count_elems_of_size(ofnode node, const char *propname, int elem_size);\n+\n+static inline int ofnode_count_u32_elems(ofnode node, const char *propname)\n+{\n+\treturn ofnode_count_elems_of_size(node, propname, 4);\n+}\n+\n+static inline int ofnode_count_u64_elems(ofnode node, const char *propname)\n+{\n+\treturn ofnode_count_elems_of_size(node, propname, 8);\n+}\n+\n /**\n * ofnode_is_enabled() - Checks whether a node is enabled.\n * This looks for a 'status' property. If this exists, then returns true if\n * the status is 'okay' and false otherwise. If there is no status property,\ndiff --git a/include/fdtdec.h b/include/fdtdec.h\nindex d9fcd037ed26..3d199e56b031 100644\n--- a/include/fdtdec.h\n+++ b/include/fdtdec.h\n@@ -699,8 +699,24 @@ int fdtdec_lookup_phandle(const void *blob, int node, const char *prop_name);\n */\n int fdtdec_get_int_array(const void *blob, int node, const char *prop_name,\n \t\tu32 *array, int count);\n \n+/**\n+ * Look up a property in a node and return its contents in a u64\n+ * array of given length. The property must have at least enough data for\n+ * the array (8*count bytes). It may have more, but this will be ignored.\n+ *\n+ * @param blob\t\tFDT blob\n+ * @param node\t\tnode to examine\n+ * @param prop_name\tname of property to find\n+ * @param array\t\tarray to fill with data\n+ * @param count\t\tnumber of array elements\n+ * Return: 0 if ok, or -FDT_ERR_NOTFOUND if the property is not found,\n+ *\t\tor -FDT_ERR_BADLAYOUT if not enough data\n+ */\n+int fdtdec_get_long_array(const void *blob, int node, const char *prop_name,\n+\t\tu64 *array, int count);\n+\n /**\n * Look up a property in a node and return its contents in an integer\n * array of given length. The property must exist but may have less data that\n * expected (4*count bytes). It may have more, but this will be ignored.\ndiff --git a/lib/fdtdec.c b/lib/fdtdec.c\nindex c38738b48c79..e23e53f58f24 100644\n--- a/lib/fdtdec.c\n+++ b/lib/fdtdec.c\n@@ -713,8 +713,26 @@ int fdtdec_get_int_array(const void *blob, int node, const char *prop_name,\n \t}\n \treturn err;\n }\n \n+int fdtdec_get_long_array(const void *blob, int node, const char *prop_name,\n+\t\t\t u64 *array, int count)\n+{\n+\tconst u64 *cell;\n+\tint err = 0;\n+\n+\tdebug(\"%s: %s\\n\", __func__, prop_name);\n+\tcell = get_prop_check_min_len(blob, node, prop_name,\n+\t\t\t\t sizeof(u64) * count, &err);\n+\tif (!err) {\n+\t\tint i;\n+\n+\t\tfor (i = 0; i < count; i++)\n+\t\t\tarray[i] = fdt64_to_cpu(cell[i]);\n+\t}\n+\treturn err;\n+}\n+\n int fdtdec_get_int_array_count(const void *blob, int node,\n \t\t\t const char *prop_name, u32 *array, int count)\n {\n \tconst u32 *cell;\n", "prefixes": [ "v2", "04/11" ] }