diff options
Diffstat (limited to 'target/linux/generic/backport-4.19/046-v4.19-mtd-partitions-use-DT-info-for-parsing-partitions-wi.patch')
| -rw-r--r-- | target/linux/generic/backport-4.19/046-v4.19-mtd-partitions-use-DT-info-for-parsing-partitions-wi.patch | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/target/linux/generic/backport-4.19/046-v4.19-mtd-partitions-use-DT-info-for-parsing-partitions-wi.patch b/target/linux/generic/backport-4.19/046-v4.19-mtd-partitions-use-DT-info-for-parsing-partitions-wi.patch deleted file mode 100644 index 1bb3563f15..0000000000 --- a/target/linux/generic/backport-4.19/046-v4.19-mtd-partitions-use-DT-info-for-parsing-partitions-wi.patch +++ /dev/null @@ -1,102 +0,0 @@ -From 76a832254ab05502c9394cc51ded6f0abe0e0bee Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> -Date: Fri, 13 Jul 2018 16:32:21 +0200 -Subject: [PATCH] mtd: partitions: use DT info for parsing partitions with - "compatible" prop -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -So far only flash devices could be described in DT regarding partitions -parsing. That could be done with "partitions" subnode and a proper -"compatible" string. - -Some devices may use hierarchical (multi-level) layouts and may mix used -layouts (fixed and dynamic). Describing that in DT is done by specifying -"compatible" for DT-represented partition plus optionally more -properties and/or subnodes. - -To support such layouts each DT partition has to be checked for -additional description. - -Please note this implementation will work in parallel with support for -partition type specified for non-DT setups. That already works since -commit 1a0915be1926 ("mtd: partitions: add support for partition -parsers"). - -Signed-off-by: Rafał Miłecki <rafal@milecki.pl> -Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> ---- - drivers/mtd/mtdpart.c | 33 +++++++++++++-------------------- - 1 file changed, 13 insertions(+), 20 deletions(-) - ---- a/drivers/mtd/mtdpart.c -+++ b/drivers/mtd/mtdpart.c -@@ -370,22 +370,6 @@ static inline void free_partition(struct - kfree(p); - } - --/** -- * mtd_parse_part - parse MTD partition looking for subpartitions -- * -- * @slave: part that is supposed to be a container and should be parsed -- * @types: NULL-terminated array with names of partition parsers to try -- * -- * Some partitions are kind of containers with extra subpartitions (volumes). -- * There can be various formats of such containers. This function tries to use -- * specified parsers to analyze given partition and registers found -- * subpartitions on success. -- */ --static int mtd_parse_part(struct mtd_part *slave, const char *const *types) --{ -- return parse_mtd_partitions(&slave->mtd, types, NULL); --} -- - static struct mtd_part *allocate_partition(struct mtd_info *parent, - const struct mtd_partition *part, int partno, - uint64_t cur_offset) -@@ -783,8 +767,8 @@ int add_mtd_partitions(struct mtd_info * - - add_mtd_device(&slave->mtd); - mtd_add_partition_attrs(slave); -- if (parts[i].types) -- mtd_parse_part(slave, parts[i].types); -+ /* Look for subpartitions */ -+ parse_mtd_partitions(&slave->mtd, parts[i].types, NULL); - - cur_offset = slave->offset + slave->mtd.size; - } -@@ -860,6 +844,12 @@ static const char * const default_mtd_pa - NULL - }; - -+/* Check DT only when looking for subpartitions. */ -+static const char * const default_subpartition_types[] = { -+ "ofpart", -+ NULL -+}; -+ - static int mtd_part_do_parse(struct mtd_part_parser *parser, - struct mtd_info *master, - struct mtd_partitions *pparts, -@@ -930,7 +920,9 @@ static int mtd_part_of_parse(struct mtd_ - const char *fixed = "fixed-partitions"; - int ret, err = 0; - -- np = of_get_child_by_name(mtd_get_of_node(master), "partitions"); -+ np = mtd_get_of_node(master); -+ if (!mtd_is_partition(master)) -+ np = of_get_child_by_name(np, "partitions"); - of_property_for_each_string(np, "compatible", prop, compat) { - parser = mtd_part_get_compatible_parser(compat); - if (!parser) -@@ -993,7 +985,8 @@ int parse_mtd_partitions(struct mtd_info - int ret, err = 0; - - if (!types) -- types = default_mtd_part_types; -+ types = mtd_is_partition(master) ? default_subpartition_types : -+ default_mtd_part_types; - - for ( ; *types; types++) { - /* |