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hwmon: (fam15h_power) Convert to devm_hwmon_device_register_with_groups

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Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to
simplify the code a bit.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Axel Lin 2014-06-19 23:29:11 +08:00 committed by Guenter Roeck
parent b3aabd6db3
commit 562dc9732a
1 changed files with 9 additions and 42 deletions
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51
drivers/hwmon/fam15h_power.c
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@ -45,7 +45,7 @@ MODULE_LICENSE("GPL");
#define REG_TDP_LIMIT3 0xe8
struct fam15h_power_data {
struct device *hwmon_dev;
struct pci_dev *pdev;
unsigned int tdp_to_watts;
unsigned int base_tdp;
unsigned int processor_pwr_watts;
@ -57,8 +57,8 @@ static ssize_t show_power(struct device *dev,
u32 val, tdp_limit, running_avg_range;
s32 running_avg_capture;
u64 curr_pwr_watts;
struct pci_dev *f4 = to_pci_dev(dev);
struct fam15h_power_data *data = dev_get_drvdata(dev);
struct pci_dev *f4 = data->pdev;
pci_bus_read_config_dword(f4->bus, PCI_DEVFN(PCI_SLOT(f4->devfn), 5),
REG_TDP_RUNNING_AVERAGE, &val);
@ -96,23 +96,13 @@ static ssize_t show_power_crit(struct device *dev,
}
static DEVICE_ATTR(power1_crit, S_IRUGO, show_power_crit, NULL);
static ssize_t show_name(struct device *dev,
struct device_attribute *attr, char *buf)
{
return sprintf(buf, "fam15h_power\n");
}
static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
static struct attribute *fam15h_power_attrs[] = {
&dev_attr_power1_input.attr,
&dev_attr_power1_crit.attr,
&dev_attr_name.attr,
NULL
};
static const struct attribute_group fam15h_power_attr_group = {
.attrs = fam15h_power_attrs,
};
ATTRIBUTE_GROUPS(fam15h_power);
static bool fam15h_power_is_internal_node0(struct pci_dev *f4)
{
@ -202,7 +192,7 @@ static int fam15h_power_probe(struct pci_dev *pdev,
{
struct fam15h_power_data *data;
struct device *dev = &pdev->dev;
int err;
struct device *hwmon_dev;
/*
* though we ignore every other northbridge, we still have to
@ -219,34 +209,12 @@ static int fam15h_power_probe(struct pci_dev *pdev,
return -ENOMEM;
fam15h_power_init_data(pdev, data);
data->pdev = pdev;
dev_set_drvdata(dev, data);
err = sysfs_create_group(&dev->kobj, &fam15h_power_attr_group);
if (err)
return err;
data->hwmon_dev = hwmon_device_register(dev);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
goto exit_remove_group;
}
return 0;
exit_remove_group:
sysfs_remove_group(&dev->kobj, &fam15h_power_attr_group);
return err;
}
static void fam15h_power_remove(struct pci_dev *pdev)
{
struct device *dev;
struct fam15h_power_data *data;
dev = &pdev->dev;
data = dev_get_drvdata(dev);
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&dev->kobj, &fam15h_power_attr_group);
hwmon_dev = devm_hwmon_device_register_with_groups(dev, "fam15h_power",
data,
fam15h_power_groups);
return PTR_ERR_OR_ZERO(hwmon_dev);
}
static const struct pci_device_id fam15h_power_id_table[] = {
@ -260,7 +228,6 @@ static struct pci_driver fam15h_power_driver = {
.name = "fam15h_power",
.id_table = fam15h_power_id_table,
.probe = fam15h_power_probe,
.remove = fam15h_power_remove,
.resume = fam15h_power_resume,
};