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hwmon: (i5500_temp) Convert to devm_hwmon_device_register_with_groups

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Use devm_hwmon_device_register_with_groups() to simplify the code a
bit.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Romain Dolbeau <romain@dolbeau.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Jean Delvare 2015-01-24 14:16:21 +01:00
parent ada072816b
commit b8d48ce951
1 changed files with 15 additions and 58 deletions
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73
drivers/hwmon/i5500_temp.c
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@ -18,6 +18,7 @@
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/jiffies.h>
#include <linux/device.h>
#include <linux/pci.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
@ -37,11 +38,6 @@
#define REG_CTCTRL 0xF7
#define REG_TSTIMER 0xF8
struct i5500_temp_data {
struct device *hwmon_dev;
const char *name;
};
/*
* Sysfs stuff
*/
@ -50,7 +46,7 @@ struct i5500_temp_data {
static ssize_t show_temp(struct device *dev,
struct device_attribute *devattr, char *buf)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct pci_dev *pdev = to_pci_dev(dev->parent);
long temp;
u16 tsthrhi;
s8 tsfsc;
@ -65,7 +61,7 @@ static ssize_t show_temp(struct device *dev,
static ssize_t show_thresh(struct device *dev,
struct device_attribute *devattr, char *buf)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct pci_dev *pdev = to_pci_dev(dev->parent);
int reg = to_sensor_dev_attr(devattr)->index;
long temp;
u16 tsthr;
@ -79,7 +75,7 @@ static ssize_t show_thresh(struct device *dev,
static ssize_t show_alarm(struct device *dev,
struct device_attribute *devattr, char *buf)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct pci_dev *pdev = to_pci_dev(dev->parent);
int nr = to_sensor_dev_attr(devattr)->index;
u8 ctsts;
@ -87,21 +83,12 @@ static ssize_t show_alarm(struct device *dev,
return sprintf(buf, "%u\n", (unsigned int)ctsts & (1 << nr));
}
static ssize_t show_name(struct device *dev, struct device_attribute
*devattr, char *buf)
{
struct i5500_temp_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%s\n", data->name);
}
static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL);
static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, show_thresh, NULL, 0xE2);
static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO, show_thresh, NULL, 0xEC);
static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_thresh, NULL, 0xEE);
static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 0);
static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 1);
static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
static struct attribute *i5500_temp_attributes[] = {
&dev_attr_temp1_input.attr,
@ -110,7 +97,6 @@ static struct attribute *i5500_temp_attributes[] = {
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
&dev_attr_name.attr,
NULL
};
@ -118,6 +104,11 @@ static const struct attribute_group i5500_temp_group = {
.attrs = i5500_temp_attributes,
};
static const struct attribute_group *i5500_temp_groups[] = {
&i5500_temp_group,
NULL
};
static const struct pci_device_id i5500_temp_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x3438) },
{ 0 },
@ -129,58 +120,24 @@ static int i5500_temp_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
int err;
struct i5500_temp_data *data;
data = kzalloc(sizeof(struct i5500_temp_data), GFP_KERNEL);
if (!data) {
err = -ENOMEM;
goto exit;
}
data->name = "intel5500";
dev_set_drvdata(&pdev->dev, data);
struct device *hwmon_dev;
err = pci_enable_device(pdev);
if (err) {
dev_err(&pdev->dev, "Failed to enable device\n");
goto exit_free;
return err;
}
/* Register sysfs hooks */
err = sysfs_create_group(&pdev->dev.kobj, &i5500_temp_group);
if (err)
goto exit_free;
data->hwmon_dev = hwmon_device_register(&pdev->dev);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
goto exit_remove;
}
return 0;
exit_remove:
sysfs_remove_group(&pdev->dev.kobj, &i5500_temp_group);
exit_free:
kfree(data);
exit:
return err;
}
static void i5500_temp_remove(struct pci_dev *pdev)
{
struct i5500_temp_data *data = dev_get_drvdata(&pdev->dev);
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&pdev->dev.kobj, &i5500_temp_group);
kfree(data);
hwmon_dev = devm_hwmon_device_register_with_groups(&pdev->dev,
"intel5500", NULL,
i5500_temp_groups);
return PTR_ERR_OR_ZERO(hwmon_dev);
}
static struct pci_driver i5500_temp_driver = {
.name = "i5500_temp",
.id_table = i5500_temp_ids,
.probe = i5500_temp_probe,
.remove = i5500_temp_remove,
};
static int __init i5500_temp_init(void)