diff options
| author | krzysztof.adamski@nokia.com <krzysztof.adamski@nokia.com> | 2019-04-15 14:44:05 -0700 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2019-04-15 17:19:53 -0700 |
| commit | 991d679951f0df27db170036080746b84115e1e7 (patch) | |
| tree | 016b3b1a16908fa445c5ff6dd31240c216d0ac68 /drivers/hwmon/pmbus | |
| parent | 9f00995e4eb293679597d76462fec2ce152e3500 (diff) | |
| download | linux-991d679951f0df27db170036080746b84115e1e7.tar.bz2 | |
pmbus: support for custom sysfs attributes
This patch makes it possible to pass custom struct attribute_group array
via the pmbus_driver_info struct so that those can be added to the
attribute groups passed to hwmon_device_register_with_groups().
This makes it possible to register custom sysfs attributes by PMBUS
drivers similar to how you can do this with most other busses/classes.
Signed-off-by: Krzysztof Adamski <krzysztof.adamski@nokia.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/pmbus')
| -rw-r--r-- | drivers/hwmon/pmbus/pmbus.h | 3 | ||||
| -rw-r--r-- | drivers/hwmon/pmbus/pmbus_core.c | 13 |
2 files changed, 15 insertions, 1 deletions
diff --git a/drivers/hwmon/pmbus/pmbus.h b/drivers/hwmon/pmbus/pmbus.h index e73289cc867d..59f85658313c 100644 --- a/drivers/hwmon/pmbus/pmbus.h +++ b/drivers/hwmon/pmbus/pmbus.h @@ -432,6 +432,9 @@ struct pmbus_driver_info { /* Regulator functionality, if supported by this chip driver. */ int num_regulators; const struct regulator_desc *reg_desc; + + /* custom attributes */ + const struct attribute_group **groups; }; /* Regulator ops */ diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c index b5d661235ae6..32a74b8be6bd 100644 --- a/drivers/hwmon/pmbus/pmbus_core.c +++ b/drivers/hwmon/pmbus/pmbus_core.c @@ -103,7 +103,7 @@ struct pmbus_data { int max_attributes; int num_attributes; struct attribute_group group; - const struct attribute_group *groups[2]; + const struct attribute_group **groups; struct dentry *debugfs; /* debugfs device directory */ struct pmbus_sensor *sensors; @@ -2415,6 +2415,7 @@ int pmbus_do_probe(struct i2c_client *client, const struct i2c_device_id *id, struct device *dev = &client->dev; const struct pmbus_platform_data *pdata = dev_get_platdata(dev); struct pmbus_data *data; + size_t groups_num = 0; int ret; if (!info) @@ -2429,6 +2430,15 @@ int pmbus_do_probe(struct i2c_client *client, const struct i2c_device_id *id, if (!data) return -ENOMEM; + if (info->groups) + while (info->groups[groups_num]) + groups_num++; + + data->groups = devm_kcalloc(dev, groups_num + 2, sizeof(void *), + GFP_KERNEL); + if (!data->groups) + return -ENOMEM; + i2c_set_clientdata(client, data); mutex_init(&data->update_lock); data->dev = dev; @@ -2456,6 +2466,7 @@ int pmbus_do_probe(struct i2c_client *client, const struct i2c_device_id *id, } data->groups[0] = &data->group; + memcpy(data->groups + 1, info->groups, sizeof(void *) * groups_num); data->hwmon_dev = hwmon_device_register_with_groups(dev, client->name, data, data->groups); if (IS_ERR(data->hwmon_dev)) { |