[PATCH] bq27x00: use cached flags
From: Arthur Demchenkov
Date: Mon Feb 18 2019 - 02:00:10 EST
The flags were just read by bq27xxx_battery_update(),
no need to read them again.
Signed-off-by: Arthur Demchenkov <spinal.by@xxxxxxxxx>
---
drivers/power/supply/bq27xxx_battery.c | 20 ++++----------------
1 file changed, 4 insertions(+), 16 deletions(-)
diff --git a/drivers/power/supply/bq27xxx_battery.c b/drivers/power/supply/bq27xxx_battery.c
index 6dbbe95844a3..29b3a4056865 100644
--- a/drivers/power/supply/bq27xxx_battery.c
+++ b/drivers/power/supply/bq27xxx_battery.c
@@ -1555,27 +1555,14 @@ static bool bq27xxx_battery_dead(struct bq27xxx_device_info *di, u16 flags)
return flags & (BQ27XXX_FLAG_SOC1 | BQ27XXX_FLAG_SOCF);
}
-/*
- * Read flag register.
- * Return < 0 if something fails.
- */
static int bq27xxx_battery_read_health(struct bq27xxx_device_info *di)
{
- int flags;
- bool has_singe_flag = di->opts & BQ27XXX_O_ZERO;
-
- flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, has_singe_flag);
- if (flags < 0) {
- dev_err(di->dev, "error reading flag register:%d\n", flags);
- return flags;
- }
-
/* Unlikely but important to return first */
- if (unlikely(bq27xxx_battery_overtemp(di, flags)))
+ if (unlikely(bq27xxx_battery_overtemp(di, di->cache.flags)))
return POWER_SUPPLY_HEALTH_OVERHEAT;
- if (unlikely(bq27xxx_battery_undertemp(di, flags)))
+ if (unlikely(bq27xxx_battery_undertemp(di, di->cache.flags)))
return POWER_SUPPLY_HEALTH_COLD;
- if (unlikely(bq27xxx_battery_dead(di, flags)))
+ if (unlikely(bq27xxx_battery_dead(di, di->cache.flags)))
return POWER_SUPPLY_HEALTH_DEAD;
return POWER_SUPPLY_HEALTH_GOOD;
@@ -1612,6 +1599,7 @@ void bq27xxx_battery_update(struct bq27xxx_device_info *di)
cache.capacity = bq27xxx_battery_read_soc(di);
if (di->regs[BQ27XXX_REG_AE] != INVALID_REG_ADDR)
cache.energy = bq27xxx_battery_read_energy(di);
+ di->cache.flags = cache.flags;
cache.health = bq27xxx_battery_read_health(di);
}
if (di->regs[BQ27XXX_REG_CYCT] != INVALID_REG_ADDR)
--
2.11.0