This adds the constant-charge-current property to the list of optional
properties for the battery.
The constant charge current is critical for batteries as they can't
handle all charge currents.
Signed-off-by: Quentin Schulz <quentin.schulz@xxxxxxxxxxxxxxxxxx>
---
drivers/power/supply/power_supply_core.c | 3 +++
include/linux/power_supply.h | 1 +
2 files changed, 4 insertions(+)
diff --git a/drivers/power/supply/power_supply_core.c b/drivers/power/supply/power_supply_core.c
index 5019bdee0f0b..23887739c95c 100644
--- a/drivers/power/supply/power_supply_core.c
+++ b/drivers/power/supply/power_supply_core.c
@@ -508,6 +508,7 @@ int power_supply_get_battery_info(struct power_supply *psy,
info->energy_full_design_uwh = -EINVAL;
info->charge_full_design_uah = -EINVAL;
info->voltage_min_design_uv = -EINVAL;
+ info->constant_charge_current_max_ua = -EINVAL;
if (!psy->of_node) {
dev_warn(&psy->dev, "%s currently only supports devicetree\n",
@@ -537,6 +538,8 @@ int power_supply_get_battery_info(struct power_supply *psy,
&info->charge_full_design_uah);
of_property_read_u32(battery_np, "voltage-min-design-microvolt",
&info->voltage_min_design_uv);
+ of_property_read_u32(battery_np, "constant-charge-current-max-microamp",
+ &info->constant_charge_current_max_ua);
return 0;
}
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index e84f1d31d987..6f9c28187caf 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -301,6 +301,7 @@ struct power_supply_battery_info {
int energy_full_design_uwh; /* microWatt-hours */
int charge_full_design_uah; /* microAmp-hours */
int voltage_min_design_uv; /* microVolts */
+ int constant_charge_current_max_ua; /* microAmps */
};
extern struct atomic_notifier_head power_supply_notifier;
--
2.11.0
--
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