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%3Ba=su...
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@vger.kernel.org know about it.
From foo@baz Thu Mar 22 14:40:23 CET 2018
From: Liam Breck kernel@networkimprov.net Date: Tue, 11 Apr 2017 04:59:54 -0700 Subject: power: supply: bq24190_charger: Limit over/under voltage fault logging
From: Liam Breck kernel@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 tony@atomide.com Cc: Hans de Goede hdegoede@redhat.com Signed-off-by: Liam Breck kernel@networkimprov.net Acked-by: Tony Lindgren tony@atomide.com Reviewed-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Sebastian Reichel sre@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- 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@networkimprov.net 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