From: Liam Breck <ker...@networkimprov.net>
[ Upstream commit d63d07c6fc25182af6d3ab5b3b8737b0c1025ebd ]
If the charger is unplugged before the battery is full we may
see an over/under voltage fault. Ignore this rather then emitting
a message or uevent.
This fixes messages like these getting logged on charger unplug + replug:
bq24190-charger 15-006b: Fault: boost 0, charge 1, battery 0, ntc 0
bq24190-charger 15-006b: Fault: boost 0, charge 0, battery 0, ntc 0
Cc: Tony Lindgren <t...@atomide.com>
Cc: Hans de Goede <hdego...@redhat.com>
Signed-off-by: Liam Breck <ker...@networkimprov.net>
Acked-by: Tony Lindgren <t...@atomide.com>
Reviewed-by: Hans de Goede <hdego...@redhat.com>
Signed-off-by: Sebastian Reichel <s...@kernel.org>
Signed-off-by: Sasha Levin <alexander.le...@microsoft.com>
---
drivers/power/supply/bq24190_charger.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/power/supply/bq24190_charger.c
b/drivers/power/supply/bq24190_charger.c
index 50171fd3cc6d..cdd71ecd72ed 100644
--- a/drivers/power/supply/bq24190_charger.c
+++ b/drivers/power/supply/bq24190_charger.c
@@ -1184,8 +1184,13 @@ static irqreturn_t bq24190_irq_handler_thread(int irq,
void *data)
}
} while (f_reg && ++i < 2);
+ /* ignore over/under voltage fault after disconnect */
+ if (f_reg == (1 << BQ24190_REG_F_CHRG_FAULT_SHIFT) &&
+ !(ss_reg & BQ24190_REG_SS_PG_STAT_MASK))
+ f_reg = 0;
+
if (f_reg != bdi->f_reg) {
- dev_info(bdi->dev,
+ dev_warn(bdi->dev,
"Fault: boost %d, charge %d, battery %d, ntc %d\n",
!!(f_reg & BQ24190_REG_F_BOOST_FAULT_MASK),
!!(f_reg & BQ24190_REG_F_CHRG_FAULT_MASK),
--
2.14.1
