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Diffstat (limited to 'drivers/hwmon/coretemp.c')
-rw-r--r--drivers/hwmon/coretemp.c89
1 files changed, 25 insertions, 64 deletions
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index bbb0b0d463f..d76f0b70c6e 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -94,6 +94,8 @@ struct temp_data {
bool valid;
struct sensor_device_attribute sd_attrs[TOTAL_ATTRS];
char attr_name[TOTAL_ATTRS][CORETEMP_NAME_LENGTH];
+ struct attribute *attrs[TOTAL_ATTRS + 1];
+ struct attribute_group attr_group;
struct mutex update_lock;
};
@@ -114,12 +116,6 @@ struct pdev_entry {
static LIST_HEAD(pdev_list);
static DEFINE_MUTEX(pdev_list_mutex);
-static ssize_t show_name(struct device *dev,
- struct device_attribute *devattr, char *buf)
-{
- return sprintf(buf, "%s\n", DRVNAME);
-}
-
static ssize_t show_label(struct device *dev,
struct device_attribute *devattr, char *buf)
{
@@ -369,12 +365,12 @@ static int get_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev)
if (cpu_has_tjmax(c))
dev_warn(dev, "Unable to read TjMax from CPU %u\n", id);
} else {
- val = (eax >> 16) & 0x7f;
+ val = (eax >> 16) & 0xff;
/*
* If the TjMax is not plausible, an assumption
* will be used
*/
- if (val >= 85) {
+ if (val) {
dev_dbg(dev, "TjMax is %d degrees C\n", val);
return val * 1000;
}
@@ -393,20 +389,10 @@ static int get_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev)
return adjust_tjmax(c, id, dev);
}
-static int create_name_attr(struct platform_data *pdata,
- struct device *dev)
-{
- sysfs_attr_init(&pdata->name_attr.attr);
- pdata->name_attr.attr.name = "name";
- pdata->name_attr.attr.mode = S_IRUGO;
- pdata->name_attr.show = show_name;
- return device_create_file(dev, &pdata->name_attr);
-}
-
static int create_core_attrs(struct temp_data *tdata, struct device *dev,
int attr_no)
{
- int err, i;
+ int i;
static ssize_t (*const rd_ptr[TOTAL_ATTRS]) (struct device *dev,
struct device_attribute *devattr, char *buf) = {
show_label, show_crit_alarm, show_temp, show_tjmax,
@@ -424,16 +410,10 @@ static int create_core_attrs(struct temp_data *tdata, struct device *dev,
tdata->sd_attrs[i].dev_attr.attr.mode = S_IRUGO;
tdata->sd_attrs[i].dev_attr.show = rd_ptr[i];
tdata->sd_attrs[i].index = attr_no;
- err = device_create_file(dev, &tdata->sd_attrs[i].dev_attr);
- if (err)
- goto exit_free;
+ tdata->attrs[i] = &tdata->sd_attrs[i].dev_attr.attr;
}
- return 0;
-
-exit_free:
- while (--i >= 0)
- device_remove_file(dev, &tdata->sd_attrs[i].dev_attr);
- return err;
+ tdata->attr_group.attrs = tdata->attrs;
+ return sysfs_create_group(&dev->kobj, &tdata->attr_group);
}
@@ -548,7 +528,7 @@ static int create_core_data(struct platform_device *pdev, unsigned int cpu,
pdata->core_data[attr_no] = tdata;
/* Create sysfs interfaces */
- err = create_core_attrs(tdata, &pdev->dev, attr_no);
+ err = create_core_attrs(tdata, pdata->hwmon_dev, attr_no);
if (err)
goto exit_free;
@@ -573,14 +553,12 @@ static void coretemp_add_core(unsigned int cpu, int pkg_flag)
}
static void coretemp_remove_core(struct platform_data *pdata,
- struct device *dev, int indx)
+ int indx)
{
- int i;
struct temp_data *tdata = pdata->core_data[indx];
/* Remove the sysfs attributes */
- for (i = 0; i < tdata->attr_size; i++)
- device_remove_file(dev, &tdata->sd_attrs[i].dev_attr);
+ sysfs_remove_group(&pdata->hwmon_dev->kobj, &tdata->attr_group);
kfree(pdata->core_data[indx]);
pdata->core_data[indx] = NULL;
@@ -588,34 +566,20 @@ static void coretemp_remove_core(struct platform_data *pdata,
static int coretemp_probe(struct platform_device *pdev)
{
+ struct device *dev = &pdev->dev;
struct platform_data *pdata;
- int err;
/* Initialize the per-package data structures */
- pdata = kzalloc(sizeof(struct platform_data), GFP_KERNEL);
+ pdata = devm_kzalloc(dev, sizeof(struct platform_data), GFP_KERNEL);
if (!pdata)
return -ENOMEM;
- err = create_name_attr(pdata, &pdev->dev);
- if (err)
- goto exit_free;
-
pdata->phys_proc_id = pdev->id;
platform_set_drvdata(pdev, pdata);
- pdata->hwmon_dev = hwmon_device_register(&pdev->dev);
- if (IS_ERR(pdata->hwmon_dev)) {
- err = PTR_ERR(pdata->hwmon_dev);
- dev_err(&pdev->dev, "Class registration failed (%d)\n", err);
- goto exit_name;
- }
- return 0;
-
-exit_name:
- device_remove_file(&pdev->dev, &pdata->name_attr);
-exit_free:
- kfree(pdata);
- return err;
+ pdata->hwmon_dev = devm_hwmon_device_register_with_groups(dev, DRVNAME,
+ pdata, NULL);
+ return PTR_ERR_OR_ZERO(pdata->hwmon_dev);
}
static int coretemp_remove(struct platform_device *pdev)
@@ -625,11 +589,8 @@ static int coretemp_remove(struct platform_device *pdev)
for (i = MAX_CORE_DATA - 1; i >= 0; --i)
if (pdata->core_data[i])
- coretemp_remove_core(pdata, &pdev->dev, i);
+ coretemp_remove_core(pdata, i);
- device_remove_file(&pdev->dev, &pdata->name_attr);
- hwmon_device_unregister(pdata->hwmon_dev);
- kfree(pdata);
return 0;
}
@@ -777,7 +738,7 @@ static void put_core_offline(unsigned int cpu)
return;
if (pdata->core_data[indx] && pdata->core_data[indx]->cpu == cpu)
- coretemp_remove_core(pdata, &pdev->dev, indx);
+ coretemp_remove_core(pdata, indx);
/*
* If a HT sibling of a core is taken offline, but another HT sibling
@@ -849,20 +810,20 @@ static int __init coretemp_init(void)
if (err)
goto exit;
- get_online_cpus();
+ cpu_notifier_register_begin();
for_each_online_cpu(i)
get_core_online(i);
#ifndef CONFIG_HOTPLUG_CPU
if (list_empty(&pdev_list)) {
- put_online_cpus();
+ cpu_notifier_register_done();
err = -ENODEV;
goto exit_driver_unreg;
}
#endif
- register_hotcpu_notifier(&coretemp_cpu_notifier);
- put_online_cpus();
+ __register_hotcpu_notifier(&coretemp_cpu_notifier);
+ cpu_notifier_register_done();
return 0;
#ifndef CONFIG_HOTPLUG_CPU
@@ -877,8 +838,8 @@ static void __exit coretemp_exit(void)
{
struct pdev_entry *p, *n;
- get_online_cpus();
- unregister_hotcpu_notifier(&coretemp_cpu_notifier);
+ cpu_notifier_register_begin();
+ __unregister_hotcpu_notifier(&coretemp_cpu_notifier);
mutex_lock(&pdev_list_mutex);
list_for_each_entry_safe(p, n, &pdev_list, list) {
platform_device_unregister(p->pdev);
@@ -886,7 +847,7 @@ static void __exit coretemp_exit(void)
kfree(p);
}
mutex_unlock(&pdev_list_mutex);
- put_online_cpus();
+ cpu_notifier_register_done();
platform_driver_unregister(&coretemp_driver);
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-11 08:26:56 +0000