Few batteries can be modelled to degrade at constant rate for each
increased cycle. Add degradation constant for such simple model to
batinfo.
Signed-off-by: Matti Vaittinen <matti.vaittinen@xxxxxxxxxxxxxxxxx>
---
RFCv3: New patch
---
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 47176ed2570b..ebc961b5aa45 100644
--- a/drivers/power/supply/power_supply_core.c
+++ b/drivers/power/supply/power_supply_core.c
@@ -639,6 +639,7 @@ int power_supply_dev_get_battery_info(struct device *dev,
info->resist_table = NULL;
info->temp_dgrd_values = 0;
info->temp_dgrd = NULL;
+ info->degrade_cycle_uah = 0;
for (index = 0; index < POWER_SUPPLY_OCV_TEMP_MAX; index++) {
info->ocv_table[index] = NULL;
@@ -689,6 +690,8 @@ int power_supply_dev_get_battery_info(struct device *dev,
dev_warn(dev, "%s unknown battery type\n", value);
}
+ fwnode_property_read_u32(battery_node, "degrade-cycle-microamp-hours",
+ &info->degrade_cycle_uah);
fwnode_property_read_u32(battery_node, "energy-full-design-microwatt-hours",
&info->energy_full_design_uwh);
fwnode_property_read_u32(battery_node, "charge-full-design-microamp-hours",
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index ef7db73a5bd1..c5118265b3ab 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -403,6 +403,7 @@ struct power_supply_battery_info {
int resist_table_size;
int temp_dgrd_values;
struct power_supply_temp_degr *temp_dgrd;
+ int degrade_cycle_uah;
};
extern struct atomic_notifier_head power_supply_notifier;
--
2.31.1
--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND
~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]
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