[PATCHv1 01/14] power: supply: core: add support for custom sysfs attributes

[Sebastian Reichel]

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

Signed-off-by: Sebastian Reichel <sebastian.reic...@collabora.com>
---
 drivers/power/supply/power_supply_core.c | 1 +
 include/linux/power_supply.h             | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/drivers/power/supply/power_supply_core.c 
b/drivers/power/supply/power_supply_core.c
index e85361878450..cb7ddced85ed 100644
--- a/drivers/power/supply/power_supply_core.c
+++ b/drivers/power/supply/power_supply_core.c
@@ -880,6 +880,7 @@ __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;
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index f80769175c56..410466946890 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -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;
 };
-- 
2.19.0