This is a note to let you know that I've just added the patch titled
power: supply: bq24190_charger: Limit over/under voltage fault logging
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
power-supply-bq24190_charger-limit-over-under-voltage-fault-logging.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Thu Mar 22 14:40:23 CET 2018
From: Liam Breck <kernel@xxxxxxxxxxxxxxxxx>
Date: Tue, 11 Apr 2017 04:59:54 -0700
Subject: power: supply: bq24190_charger: Limit over/under voltage fault logging
From: Liam Breck <kernel@xxxxxxxxxxxxxxxxx>
[ 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 <tony@xxxxxxxxxxx>
Cc: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Liam Breck <kernel@xxxxxxxxxxxxxxxxx>
Acked-by: Tony Lindgren <tony@xxxxxxxxxxx>
Reviewed-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Sebastian Reichel <sre@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/power/supply/bq24190_charger.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
--- a/drivers/power/supply/bq24190_charger.c
+++ b/drivers/power/supply/bq24190_charger.c
@@ -1184,8 +1184,13 @@ static irqreturn_t bq24190_irq_handler_t
}
} 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),
Patches currently in stable-queue which might be from kernel@xxxxxxxxxxxxxxxxx are
queue-4.9/power-supply-bq24190_charger-limit-over-under-voltage-fault-logging.patch
queue-4.9/power-supply-bq24190_charger-add-disable-reset-device-property.patch