[PATCH 1/1] power: supply: bq27xxx: fix reporting critical level
From: Sicelo A. Mhlongo
Date: Mon Jan 02 2023 - 04:14:02 EST
The EDV1/SOC1 flag is set when the battery voltage drops below the
threshold set in EEPROM. From observing the capacity_level reported by
the driver, and reading the datasheet, EDV1 remains set even when
EDVF/SOCF gets set. Thus, bq27xxx_battery_capacity_level() never reaches
the CAPACITY_LEVEL_CRITICAL code path, since CAPACITY_LEVEL_LOW takes
precedence.
This commit fixes the issue by swapping the order in which the flags are
tested. It was tested with bq27200 in the Nokia N900.
Signed-off-by: Sicelo A. Mhlongo <absicsz@xxxxxxxxx>
---
drivers/power/supply/bq27xxx_battery.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/power/supply/bq27xxx_battery.c b/drivers/power/supply/bq27xxx_battery.c
index 8bf048fbd36a..5ff6f44fd47b 100644
--- a/drivers/power/supply/bq27xxx_battery.c
+++ b/drivers/power/supply/bq27xxx_battery.c
@@ -1917,10 +1917,10 @@ static int bq27xxx_battery_capacity_level(struct bq27xxx_device_info *di,
if (di->opts & BQ27XXX_O_ZERO) {
if (di->cache.flags & BQ27000_FLAG_FC)
level = POWER_SUPPLY_CAPACITY_LEVEL_FULL;
- else if (di->cache.flags & BQ27000_FLAG_EDV1)
- level = POWER_SUPPLY_CAPACITY_LEVEL_LOW;
else if (di->cache.flags & BQ27000_FLAG_EDVF)
level = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
+ else if (di->cache.flags & BQ27000_FLAG_EDV1)
+ level = POWER_SUPPLY_CAPACITY_LEVEL_LOW;
else
level = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
} else if (di->opts & BQ27Z561_O_BITS) {
@@ -1933,10 +1933,10 @@ static int bq27xxx_battery_capacity_level(struct bq27xxx_device_info *di,
} else {
if (di->cache.flags & BQ27XXX_FLAG_FC)
level = POWER_SUPPLY_CAPACITY_LEVEL_FULL;
- else if (di->cache.flags & BQ27XXX_FLAG_SOC1)
- level = POWER_SUPPLY_CAPACITY_LEVEL_LOW;
else if (di->cache.flags & BQ27XXX_FLAG_SOCF)
level = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
+ else if (di->cache.flags & BQ27XXX_FLAG_SOC1)
+ level = POWER_SUPPLY_CAPACITY_LEVEL_LOW;
else
level = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
}
--
2.39.0