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regulator: userspace: use sysfs_create_group 

and avoid introducing our own loops for creating
several sysfs entries.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
This commit is contained in:
Felipe Balbi 2009-08-10 09:05:13 +03:00 committed by Liam Girdwood
parent 86d9884b6a
commit e9d62698e8
1 changed files with 23 additions and 22 deletions
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45
drivers/regulator/userspace-consumer.c
View File

@ -93,16 +93,21 @@ static ssize_t reg_set_state(struct device *dev, struct device_attribute *attr,
static DEVICE_ATTR(name, 0444, reg_show_name, NULL);
static DEVICE_ATTR(state, 0644, reg_show_state, reg_set_state);
static struct device_attribute *attributes[] = {
&dev_attr_name,
&dev_attr_state,
static struct attribute *attributes[] = {
&dev_attr_name.attr,
&dev_attr_state.attr,
NULL,
};
static const struct attribute_group attr_group = {
.attrs = attributes,
};
static int regulator_userspace_consumer_probe(struct platform_device *pdev)
{
struct regulator_userspace_consumer_data *pdata;
struct userspace_consumer_data *drvdata;
int ret, i;
int ret;
pdata = pdev->dev.platform_data;
if (!pdata)
@ -125,31 +130,29 @@ static int regulator_userspace_consumer_probe(struct platform_device *pdev)
goto err_alloc_supplies;
}
for (i = 0; i < ARRAY_SIZE(attributes); i++) {
ret = device_create_file(&pdev->dev, attributes[i]);
if (ret != 0)
goto err_create_attrs;
}
ret = sysfs_create_group(&pdev->dev.kobj, &attr_group);
if (ret != 0)
goto err_create_attrs;
if (pdata->init_on)
if (pdata->init_on) {
ret = regulator_bulk_enable(drvdata->num_supplies,
drvdata->supplies);
drvdata->enabled = pdata->init_on;
if (ret) {
dev_err(&pdev->dev, "Failed to set initial state: %d\n", ret);
goto err_create_attrs;
if (ret) {
dev_err(&pdev->dev,
"Failed to set initial state: %d\n", ret);
goto err_enable;
}
}
drvdata->enabled = pdata->init_on;
platform_set_drvdata(pdev, drvdata);
return 0;
err_create_attrs:
for (i = 0; i < ARRAY_SIZE(attributes); i++)
device_remove_file(&pdev->dev, attributes[i]);
err_enable:
sysfs_remove_group(&pdev->dev.kobj, &attr_group);
err_create_attrs:
regulator_bulk_free(drvdata->num_supplies, drvdata->supplies);
err_alloc_supplies:
@ -160,10 +163,8 @@ err_alloc_supplies:
static int regulator_userspace_consumer_remove(struct platform_device *pdev)
{
struct userspace_consumer_data *data = platform_get_drvdata(pdev);
int i;
for (i = 0; i < ARRAY_SIZE(attributes); i++)
device_remove_file(&pdev->dev, attributes[i]);
sysfs_remove_group(&pdev->dev.kobj, &attr_group);
if (data->enabled)
regulator_bulk_disable(data->num_supplies, data->supplies);