diff options
| -rw-r--r-- | drivers/regulator/core.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index cc3dfd66f39..f59821f10fd 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -81,6 +81,9 @@ struct regulator { char *supply_name; struct device_attribute dev_attr; struct regulator_dev *rdev; +#ifdef CONFIG_DEBUG_FS + struct dentry *debugfs; +#endif }; static int _regulator_is_enabled(struct regulator_dev *rdev); @@ -1093,7 +1096,28 @@ static struct regulator *create_regulator(struct regulator_dev *rdev, dev->kobj.name, err); goto link_name_err; } + } else { + regulator->supply_name = kstrdup(supply_name, GFP_KERNEL); + if (regulator->supply_name == NULL) + goto attr_err; + } + +#ifdef CONFIG_DEBUG_FS + regulator->debugfs = debugfs_create_dir(regulator->supply_name, + rdev->debugfs); + if (IS_ERR_OR_NULL(regulator->debugfs)) { + rdev_warn(rdev, "Failed to create debugfs directory\n"); + regulator->debugfs = NULL; + } else { + debugfs_create_u32("uA_load", 0444, regulator->debugfs, + ®ulator->uA_load); + debugfs_create_u32("min_uV", 0444, regulator->debugfs, + ®ulator->min_uV); + debugfs_create_u32("max_uV", 0444, regulator->debugfs, + ®ulator->max_uV); } +#endif + mutex_unlock(&rdev->mutex); return regulator; link_name_err: @@ -1272,13 +1296,17 @@ void regulator_put(struct regulator *regulator) mutex_lock(®ulator_list_mutex); rdev = regulator->rdev; +#ifdef CONFIG_DEBUG_FS + debugfs_remove_recursive(regulator->debugfs); +#endif + /* remove any sysfs entries */ if (regulator->dev) { sysfs_remove_link(&rdev->dev.kobj, regulator->supply_name); - kfree(regulator->supply_name); device_remove_file(regulator->dev, ®ulator->dev_attr); kfree(regulator->dev_attr.attr.name); } + kfree(regulator->supply_name); list_del(®ulator->list); kfree(regulator); |