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regmap: allow regmap instances to be named

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Some devices have multiple separate register regions. Logically, one
regmap would be created per region. One issue that prevents this is that
each instance will attempt to create the same debugfs files. Avoid this
by allowing regmaps to be named, and use the name to construct the
debugfs directory name.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Stephen Warren
2012-04-04 15:48:29 -06:00
committed by Mark Brown
parent dd775ae254
commit d3c242e1f2
4 changed files with 20 additions and 6 deletions
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14
drivers/base/regmap/regmap-debugfs.c
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@@ -248,10 +248,17 @@ static const struct file_operations regmap_access_fops = {
.llseek = default_llseek,
};
void regmap_debugfs_init(struct regmap *map)
void regmap_debugfs_init(struct regmap *map, const char *name)
{
map->debugfs = debugfs_create_dir(dev_name(map->dev),
regmap_debugfs_root);
if (name) {
map->debugfs_name = kasprintf(GFP_KERNEL, "%s-%s",
dev_name(map->dev), name);
name = map->debugfs_name;
} else {
name = dev_name(map->dev);
}
map->debugfs = debugfs_create_dir(name, regmap_debugfs_root);
if (!map->debugfs) {
dev_warn(map->dev, "Failed to create debugfs directory\n");
return;
@@ -280,6 +287,7 @@ void regmap_debugfs_init(struct regmap *map)
void regmap_debugfs_exit(struct regmap *map)
{
debugfs_remove_recursive(map->debugfs);
kfree(map->debugfs_name);
}
void regmap_debugfs_initcall(void)