lkml.org 
[lkml]   [2011]   [Jun]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] regulator: Add basic per consumer debugfs
Date
Report the requested load and voltage for each consumer in debugfs when it
is enabled.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
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 cc3dfd6..f59821f 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,
+ &regulator->uA_load);
+ debugfs_create_u32("min_uV", 0444, regulator->debugfs,
+ &regulator->min_uV);
+ debugfs_create_u32("max_uV", 0444, regulator->debugfs,
+ &regulator->max_uV);
}
+#endif
+
mutex_unlock(&rdev->mutex);
return regulator;
link_name_err:
@@ -1272,13 +1296,17 @@ void regulator_put(struct regulator *regulator)
mutex_lock(&regulator_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, &regulator->dev_attr);
kfree(regulator->dev_attr.attr.name);
}
+ kfree(regulator->supply_name);
list_del(&regulator->list);
kfree(regulator);

--
1.7.5.4


\
 
 \ /
  Last update: 2011-06-19 14:37    [from the cache]
©2003-2011 Jasper Spaans