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regmap: Fix regcache debugfs initialization 

Commit 6cfec04bcc ("regmap: Separate regmap dev initialization") moved the
regmap debugfs initialization after regcache initialization. This means
that the regmap debugfs directory is not created yet when the cache
initialization runs and so any debugfs files registered by the regcache are
created in the debugfs root directory rather than the debugfs directory of
the regmap instance. Fix this by adding a separate callback for the
regcache debugfs initialization which will be called after the parent
debugfs entry has been created.

Fixes: 6cfec04bcc (regmap: Separate regmap dev initialization)
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
This commit is contained in:
Lars-Peter Clausen 2014-08-24 15:32:27 +02:00 committed by Mark Brown
parent 7d1311b93e
commit 5e0cbe7876
3 changed files with 9 additions and 6 deletions
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3
drivers/base/regmap/internal.h
View File

@ -146,6 +146,9 @@ struct regcache_ops {
enum regcache_type type;
int (*init)(struct regmap *map);
int (*exit)(struct regmap *map);
#ifdef CONFIG_DEBUG_FS
void (*debugfs_init)(struct regmap *map);
#endif
int (*read)(struct regmap *map, unsigned int reg, unsigned int *value);
int (*write)(struct regmap *map, unsigned int reg, unsigned int value);
int (*sync)(struct regmap *map, unsigned int min, unsigned int max);

9
drivers/base/regmap/regcache-rbtree.c
View File

@ -194,10 +194,6 @@ static void rbtree_debugfs_init(struct regmap *map)
{
debugfs_create_file("rbtree", 0400, map->debugfs, map, &rbtree_fops);
}
#else
static void rbtree_debugfs_init(struct regmap *map)
{
}
#endif
static int regcache_rbtree_init(struct regmap *map)
@ -222,8 +218,6 @@ static int regcache_rbtree_init(struct regmap *map)
goto err;
}
rbtree_debugfs_init(map);
return 0;
err:
@ -532,6 +526,9 @@ struct regcache_ops regcache_rbtree_ops = {
.name = "rbtree",
.init = regcache_rbtree_init,
.exit = regcache_rbtree_exit,
#ifdef CONFIG_DEBUG_FS
.debugfs_init = rbtree_debugfs_init,
#endif
.read = regcache_rbtree_read,
.write = regcache_rbtree_write,
.sync = regcache_rbtree_sync,

3
drivers/base/regmap/regmap-debugfs.c
View File

@ -538,6 +538,9 @@ void regmap_debugfs_init(struct regmap *map, const char *name)
next = rb_next(&range_node->node);
}
if (map->cache_ops && map->cache_ops->debugfs_init)
map->cache_ops->debugfs_init(map);
}
void regmap_debugfs_exit(struct regmap *map)