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power: supply: add battery parameters 

Add parsing of new device-tree battery bindings.

     - trickle-charge-current-microamp
     - precharge-upper-limit-microvolt
     - re-charge-voltage-microvolt
     - over-voltage-threshold-microvolt

Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Matti Vaittinen 2020-05-08 18:47:20 +03:00 committed by Sebastian Reichel
parent e3420b4994
commit 5a63b7ba50
2 changed files with 12 additions and 0 deletions
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8
drivers/power/supply/power_supply_core.c
View File

@ -620,10 +620,18 @@ int power_supply_get_battery_info(struct power_supply *psy,
&info->voltage_min_design_uv);
of_property_read_u32(battery_np, "voltage-max-design-microvolt",
&info->voltage_max_design_uv);
of_property_read_u32(battery_np, "trickle-charge-current-microamp",
&info->tricklecharge_current_ua);
of_property_read_u32(battery_np, "precharge-current-microamp",
&info->precharge_current_ua);
of_property_read_u32(battery_np, "precharge-upper-limit-microvolt",
&info->precharge_voltage_max_uv);
of_property_read_u32(battery_np, "charge-term-current-microamp",
&info->charge_term_current_ua);
of_property_read_u32(battery_np, "re-charge-voltage-microvolt",
&info->charge_restart_voltage_uv);
of_property_read_u32(battery_np, "over-voltage-threshold-microvolt",
&info->overvoltage_limit_uv);
of_property_read_u32(battery_np, "constant-charge-current-max-microamp",
&info->constant_charge_current_max_ua);
of_property_read_u32(battery_np, "constant-charge-voltage-max-microvolt",

4
include/linux/power_supply.h
View File

@ -346,8 +346,12 @@ struct power_supply_battery_info {
int charge_full_design_uah; /* microAmp-hours */
int voltage_min_design_uv; /* microVolts */
int voltage_max_design_uv; /* microVolts */
int tricklecharge_current_ua; /* microAmps */
int precharge_current_ua; /* microAmps */
int precharge_voltage_max_uv; /* microVolts */
int charge_term_current_ua; /* microAmps */
int charge_restart_voltage_uv; /* microVolts */
int overvoltage_limit_uv; /* microVolts */
int constant_charge_current_max_ua; /* microAmps */
int constant_charge_voltage_max_uv; /* microVolts */
int factory_internal_resistance_uohm; /* microOhms */