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hwmon: (ibmpowernv) change create_hwmon_attr_name() prototype

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It simplifies the creation of the hwmon attributes and will help when
support for a new device tree layout is added. The patch also changes
the name of the routine to parse_opal_node_name().

Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Cédric Le Goater 2015-03-19 18:44:44 +01:00 committed by Guenter Roeck
parent ccc9ac6cc9
commit f9f54f16bf
1 changed files with 20 additions and 17 deletions
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37
drivers/hwmon/ibmpowernv.c
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@ -152,29 +152,22 @@ static const char *convert_opal_attr_name(enum sensors type,
* which need to be mapped as fan2_input, temp1_max respectively before
* populating them inside hwmon device class.
*/
static int create_hwmon_attr_name(struct device *dev, enum sensors type,
const char *node_name,
char *hwmon_attr_name)
static const char *parse_opal_node_name(const char *node_name,
enum sensors type, u32 *index)
{
char attr_suffix[MAX_ATTR_LEN];
const char *attr_name;
u32 index;
int err;
err = get_sensor_index_attr(node_name, &index, attr_suffix);
if (err) {
dev_err(dev, "Sensor device node name '%s' is invalid\n",
node_name);
return err;
}
err = get_sensor_index_attr(node_name, index, attr_suffix);
if (err)
return ERR_PTR(err);
attr_name = convert_opal_attr_name(type, attr_suffix);
if (!attr_name)
return -ENOENT;
return ERR_PTR(-ENOENT);
snprintf(hwmon_attr_name, MAX_ATTR_LEN, "%s%d_%s",
sensor_groups[type].name, index, attr_name);
return 0;
return attr_name;
}
static int get_sensor_type(struct device_node *np)
@ -249,6 +242,9 @@ static int create_device_attrs(struct platform_device *pdev)
}
for_each_child_of_node(opal, np) {
const char *attr_name;
u32 opal_index;
if (np->name == NULL)
continue;
@ -265,10 +261,17 @@ static int create_device_attrs(struct platform_device *pdev)
sdata[count].id = sensor_id;
sdata[count].type = type;
err = create_hwmon_attr_name(&pdev->dev, type, np->name,
sdata[count].name);
if (err)
attr_name = parse_opal_node_name(np->name, type, &opal_index);
if (IS_ERR(attr_name)) {
dev_err(&pdev->dev, "Sensor device node name '%s' is invalid\n",
np->name);
err = PTR_ERR(attr_name);
goto exit_put_node;
}
snprintf(sdata[count].name, MAX_ATTR_LEN, "%s%d_%s",
sensor_groups[type].name, opal_index, attr_name);
sysfs_attr_init(&sdata[count].dev_attr.attr);
sdata[count].dev_attr.attr.name = sdata[count].name;