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 --- 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),