power_supply: Populate supplied_from hierarchy from the device tree

With this patch the power_supply_core will try to populate supplied_from
hierarchy from the device tree.

Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index c1cbd5e4e484..3828cefb4f65 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -173,6 +173,9 @@ struct power_supply {
 
         char **supplied_from;
         size_t num_supplies;
+#ifdef CONFIG_OF
+        struct device_node *of_node;
+#endif
 
         int (*get_property)(struct power_supply *psy,
                             enum power_supply_property psp,