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power: supply: core: add support for custom sysfs attributes

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Add functionality to setup device specific sysfs attributes
in a race condition free manner

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Sebastian Reichel 2018-09-27 15:46:03 +02:00 committed by Sebastian Reichel
parent 4a040e7c72
commit cef8fe6a38
2 changed files with 4 additions and 0 deletions
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1
drivers/power/supply/power_supply_core.c
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@ -1018,6 +1018,7 @@ __power_supply_register(struct device *parent,
dev_set_drvdata(dev, psy);
psy->desc = desc;
if (cfg) {
dev->groups = cfg->attr_grp;
psy->drv_data = cfg->drv_data;
psy->of_node =
cfg->fwnode ? to_of_node(cfg->fwnode) : cfg->of_node;

3
include/linux/power_supply.h
View File

@ -204,6 +204,9 @@ struct power_supply_config {
/* Driver private data */
void *drv_data;
/* Device specific sysfs attributes */
const struct attribute_group **attr_grp;
char **supplied_to;
size_t num_supplicants;
};