From: Guenter Roeck <linux@xxxxxxxxxxxx>
Convert to use devm_hwmon_device_register_with_groups to simplify
code and reduce code size. This also attaches sysfs attributes
to the hwmon device and no longer to the platform device.
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
drivers/hwmon/it87.c | 93 +++++++++++-----------------------------------------
1 file changed, 19 insertions(+), 74 deletions(-)
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index e4fb466fd9c3..e02c972ef81e 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -458,7 +458,7 @@ struct it87_sio_data {
* The structure is dynamically allocated.
*/
struct it87_data {
- struct device *hwmon_dev;
+ const struct attribute_group *groups[7];
enum chips type;
u16 features;
u8 peci_mask;
@@ -1739,14 +1739,6 @@ static SENSOR_DEVICE_ATTR(in8_label, S_IRUGO, show_label, NULL, 2);
/* AVCC3 */
static SENSOR_DEVICE_ATTR(in9_label, S_IRUGO, show_label, NULL, 0);
-static ssize_t show_name(struct device *dev, struct device_attribute
- *devattr, char *buf)
-{
- struct it87_data *data = dev_get_drvdata(dev);
- return sprintf(buf, "%s\n", data->name);
-}
-static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
-
static umode_t it87_in_is_visible(struct kobject *kobj,
struct attribute *attr, int index)
{
@@ -1887,10 +1879,10 @@ static umode_t it87_is_visible(struct kobject *kobj,
struct device *dev = container_of(kobj, struct device, kobj);
struct it87_data *data = dev_get_drvdata(dev);
- if ((index == 3 || index == 4) && !data->has_vid)
+ if ((index == 2 || index == 3) && !data->has_vid)
return 0;
- if (index > 4 && !(data->in_internal & (1 << (index - 5))))
+ if (index > 3 && !(data->in_internal & (1 << (index - 4))))
return 0;
return attr->mode;
@@ -1899,10 +1891,9 @@ static umode_t it87_is_visible(struct kobject *kobj,
static struct attribute *it87_attributes[] = {
&dev_attr_alarms.attr,
&sensor_dev_attr_intrusion0_alarm.dev_attr.attr,
- &dev_attr_name.attr,
- &dev_attr_vrm.attr, /* 3 */
- &dev_attr_cpu0_vid.attr, /* 4 */
- &sensor_dev_attr_in3_label.dev_attr.attr, /* 5 .. 8 */
+ &dev_attr_vrm.attr, /* 2 */
+ &dev_attr_cpu0_vid.attr, /* 3 */
+ &sensor_dev_attr_in3_label.dev_attr.attr, /* 4 .. 7 */
&sensor_dev_attr_in7_label.dev_attr.attr,
&sensor_dev_attr_in8_label.dev_attr.attr,
&sensor_dev_attr_in9_label.dev_attr.attr,
@@ -2460,16 +2451,6 @@ exit:
return err;
}
-static void it87_remove_files(struct device *dev)
-{
- sysfs_remove_group(&dev->kobj, &it87_group);
- sysfs_remove_group(&dev->kobj, &it87_group_in);
- sysfs_remove_group(&dev->kobj, &it87_group_temp);
- sysfs_remove_group(&dev->kobj, &it87_group_fan);
- sysfs_remove_group(&dev->kobj, &it87_group_pwm);
- sysfs_remove_group(&dev->kobj, &it87_group_auto_pwm);
-}
-
/* Called when we have found a new IT87. */
static void it87_init_device(struct platform_device *pdev)
{
@@ -2646,7 +2627,7 @@ static int it87_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct it87_sio_data *sio_data = dev_get_platdata(dev);
int enable_pwm_interface;
- int err = 0;
+ struct device *hwmon_dev;
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
if (!devm_request_region(&pdev->dev, res->start, IT87_EC_EXTENT,
@@ -2666,7 +2647,6 @@ static int it87_probe(struct platform_device *pdev)
data->features = it87_devices[sio_data->type].features;
data->peci_mask = it87_devices[sio_data->type].peci_mask;
data->old_peci_mask = it87_devices[sio_data->type].old_peci_mask;
- data->name = it87_devices[sio_data->type].name;
/*
* IT8705F Datasheet 0.4.1, 3h == Version G.
* IT8712F Datasheet 0.9.1, section 8.3.5 indicates 8h == Version J.
@@ -2742,59 +2722,25 @@ static int it87_probe(struct platform_device *pdev)
data->vid = sio_data->vid_value;
}
- /* Register sysfs hooks */
- err = sysfs_create_group(&dev->kobj, &it87_group);
- if (err)
- return err;
-
- err = sysfs_create_group(&dev->kobj, &it87_group_in);
- if (err)
- goto error;
-
- err = sysfs_create_group(&dev->kobj, &it87_group_temp);
- if (err)
- goto error;
-
- err = sysfs_create_group(&dev->kobj, &it87_group_fan);
- if (err)
- goto error;
+ /* Prepare for sysfs hooks */
+ data->groups[0] = &it87_group;
+ data->groups[1] = &it87_group_in;
+ data->groups[2] = &it87_group_temp;
+ data->groups[3] = &it87_group_fan;
if (enable_pwm_interface) {
data->has_pwm = (1 << ARRAY_SIZE(IT87_REG_PWM)) - 1;
data->has_pwm &= ~sio_data->skip_pwm;
- err = sysfs_create_group(&dev->kobj, &it87_group_pwm);
- if (err)
- goto error;
- if (has_old_autopwm(data)) {
- err = sysfs_create_group(&dev->kobj,
- &it87_group_auto_pwm);
- if (err)
- goto error;
- }
- }
-
- data->hwmon_dev = hwmon_device_register(dev);
- if (IS_ERR(data->hwmon_dev)) {
- err = PTR_ERR(data->hwmon_dev);
- goto error;
+ data->groups[4] = &it87_group_pwm;
+ if (has_old_autopwm(data))
+ data->groups[5] = &it87_group_auto_pwm;
}
- return 0;
-
-error:
- it87_remove_files(dev);
- return err;
-}
-
-static int it87_remove(struct platform_device *pdev)
-{
- struct it87_data *data = platform_get_drvdata(pdev);
-
- hwmon_device_unregister(data->hwmon_dev);
- it87_remove_files(&pdev->dev);
-
- return 0;
+ hwmon_dev = devm_hwmon_device_register_with_groups(dev,
+ it87_devices[sio_data->type].name,
+ data, data->groups);
+ return PTR_ERR_OR_ZERO(hwmon_dev);
}
static struct platform_driver it87_driver = {
@@ -2802,7 +2748,6 @@ static struct platform_driver it87_driver = {
.name = DRVNAME,
},
.probe = it87_probe,
- .remove = it87_remove,
};
static int __init it87_device_add(int index, unsigned short address,
--
2.1.4
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