lkml.org 
[lkml]   [2008]   [Nov]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] mtd: unify mtd partition/device registration
Date
Rather than having every map/mtd driver doing the same sequence of
registering partitions and/or devices, implement common parse_mtd().

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
drivers/mtd/mtdcore.c | 37 +++++++++++++++++++++++++++++++++++++
include/linux/mtd/mtd.h | 3 +++
2 files changed, 40 insertions(+), 0 deletions(-)
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index a9d2469..654ec1b 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -292,6 +292,43 @@ void put_mtd_device(struct mtd_info *mtd)
module_put(mtd->owner);
}

+#include <linux/mtd/partitions.h>
+
+/**
+ * parse_mtd - add partitions / devices
+ *
+ * If partitioning support is enabled, attempt to call parse_mtd_partitions()
+ * and add_mtd_partitions() with all available parsers. Otherwise just add
+ * the MTD device.
+ */
+
+int parse_mtd(struct mtd_info *mtd, const char **probe_types,
+ struct mtd_partition *parts, int nr_parts)
+{
+#ifdef CONFIG_MTD_PARTITIONS
+ const char *default_part_probe_types[] = {
+ "cmdlinepart",
+ "RedBoot",
+ NULL
+ };
+ int ret;
+
+ if (!probe_types)
+ probe_types = default_part_probe_types;
+
+ ret = parse_mtd_partitions(mtd, probe_types, &parts, 0);
+ if (ret > 0) {
+ ret = add_mtd_partitions(mtd, parts, ret);
+ kfree(parts);
+ return ret;
+ } else if (nr_parts)
+ return add_mtd_partitions(mtd, parts, nr_parts);
+#endif
+
+ return add_mtd_device(mtd);
+}
+EXPORT_SYMBOL(parse_mtd);
+
/* default_mtd_writev - default mtd writev method for MTD devices that
* don't implement their own
*/
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index eae26bb..dec3456 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -232,6 +232,9 @@ extern struct mtd_info *get_mtd_device_nm(const char *name);

extern void put_mtd_device(struct mtd_info *mtd);

+struct mtd_partition;
+int parse_mtd(struct mtd_info *mtd, const char **probe_types,
+ struct mtd_partition *parts, int nr_parts);

struct mtd_notifier {
void (*add)(struct mtd_info *mtd);
--
1.6.0.3


\
 
 \ /
  Last update: 2008-11-13 00:45    [from the cache]
©2003-2011 Jasper Spaans