power: supply: core: fix charge_behaviour formatting

This property is documented to have a special format which exposes all
available behaviours and the currently active one at the same time. For
this special format some helpers are provided.

When the charge_behaviour property was added in
1b0b6cc8030d ("power: supply: add charge_behaviour attributes"), it did
not update the default logic in in power_supply_sysfs.c to use the
format helpers. Thus by default only the currently active behaviour
is printed. This fixes the default logic to follow the documented
format.

There is currently only one in-tree drivers exposing charge behaviours -
thinkpad_acpi, which is not affected by the change, as it directly uses
the helpers and does not use the power_supply_sysfs.c logic.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20240303-power_supply-charge_behaviour_prop-v2-3-8ebb0a7c2409@weissschuh.net
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index 92dd205774ec..8e5705a56b85 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -242,6 +242,7 @@ struct power_supply_config {
 struct power_supply_desc {
 	const char *name;
 	enum power_supply_type type;
+	u8 charge_behaviours;
 	const enum power_supply_usb_type *usb_types;
 	size_t num_usb_types;
 	const enum power_supply_property *properties;