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power: supply: bq24190_charger: Limit over/under voltage fault logging

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[ Upstream commit d63d07c6fc ]

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>
This commit is contained in:
Liam Breck
2017-04-11 04:59:54 -07:00
committed by Greg Kroah-Hartman
parent 8623759933
commit f15ea8e128
1 changed files with 6 additions and 1 deletions
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7
drivers/power/supply/bq24190_charger.c
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@@ -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),