Like the corresponding OF-based device/driver matching infrascture,
let's begin to support a mtd/partition-parser matching infrastructure.
Signed-off-by: Brian Norris <computersforpeace@xxxxxxxxx>
---
drivers/of/of_mtd.c | 33 +++++++++++++++++++++++++++++++++
include/linux/mtd/partitions.h | 2 ++
include/linux/of_mtd.h | 13 +++++++++++++
3 files changed, 48 insertions(+)
diff --git a/drivers/of/of_mtd.c b/drivers/of/of_mtd.c
index b7361ed70537..169d7500af5d 100644
--- a/drivers/of/of_mtd.c
+++ b/drivers/of/of_mtd.c
@@ -9,6 +9,7 @@
#include <linux/kernel.h>
#include <linux/of_mtd.h>
#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
#include <linux/export.h>
/**
@@ -117,3 +118,35 @@ bool of_get_nand_on_flash_bbt(struct device_node *np)
return of_property_read_bool(np, "nand-on-flash-bbt");
}
EXPORT_SYMBOL_GPL(of_get_nand_on_flash_bbt);
+
+static const struct of_device_id *of_match_mtd_parser(
+ struct mtd_part_parser *parser, struct device_node *np)
+{
+ if (!parser || !np)
+ return NULL;
+
+ return of_match_node(parser->of_match_table, np);
+}
+
+static struct device_node *mtd_get_partitions_of_node(struct mtd_info *master)
+{
+ struct device_node *np = mtd_get_of_node(master);
+
+ if (!np)
+ return NULL;
+
+ return of_get_child_by_name(np, "partitions");
+}
+
+bool of_mtd_match_mtd_parser(struct mtd_info *mtd,
+ struct mtd_part_parser *parser)
+{
+ struct device_node *np = mtd_get_partitions_of_node(mtd);
+ bool ret;
+
+ ret = of_match_mtd_parser(parser, np) != NULL;
+ of_node_put(np);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(of_mtd_match_mtd_parser);
diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h
index 70736e1e6c8f..2e68ef561a40 100644
--- a/include/linux/mtd/partitions.h
+++ b/include/linux/mtd/partitions.h
@@ -51,6 +51,7 @@ struct mtd_partition {
struct mtd_info;
struct device_node;
+struct of_device_id;
/**
* struct mtd_part_parser_data - used to pass data to MTD partition parsers.
@@ -69,6 +70,7 @@ struct mtd_part_parser {
struct list_head list;
struct module *owner;
const char *name;
+ const struct of_device_id *of_match_table;
int (*parse_fn)(struct mtd_info *, const struct mtd_partition **,
struct mtd_part_parser_data *);
void (*cleanup)(const struct mtd_partition *pparts, int nr_parts);
diff --git a/include/linux/of_mtd.h b/include/linux/of_mtd.h
index e266caa36402..781362d0be0c 100644
--- a/include/linux/of_mtd.h
+++ b/include/linux/of_mtd.h
@@ -9,6 +9,10 @@
#ifndef __LINUX_OF_MTD_H
#define __LINUX_OF_MTD_H
+#include <linux/mtd/mtd.h>
+
+struct mtd_part_parser;
+
#ifdef CONFIG_OF_MTD
#include <linux/of.h>
@@ -18,6 +22,9 @@ int of_get_nand_ecc_strength(struct device_node *np);
int of_get_nand_bus_width(struct device_node *np);
bool of_get_nand_on_flash_bbt(struct device_node *np);
+bool of_mtd_match_mtd_parser(struct mtd_info *mtd,
+ struct mtd_part_parser *parser);
+
#else /* CONFIG_OF_MTD */
static inline int of_get_nand_ecc_mode(struct device_node *np)
@@ -45,6 +52,12 @@ static inline bool of_get_nand_on_flash_bbt(struct device_node *np)
return false;
}
+static inline bool of_mtd_match_mtd_parser(struct mtd_info *mtd,
+ struct mtd_part_parser *parser)
+{
+ return false;
+}
+
#endif /* CONFIG_OF_MTD */
#endif /* __LINUX_OF_MTD_H */
--
2.6.0.rc2.230.g3dd15c0
--
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