From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Sasha Levin To: "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" CC: Liam Breck , Tony Lindgren , Hans de Goede , Sebastian Reichel , Sasha Levin Subject: [PATCH AUTOSEL for 4.9 028/190] power: supply: bq24190_charger: Limit over/under voltage fault logging Date: Thu, 8 Mar 2018 04:59:02 +0000 Message-ID: <20180308045810.8041-28-alexander.levin@microsoft.com> References: <20180308045810.8041-1-alexander.levin@microsoft.com> In-Reply-To: <20180308045810.8041-1-alexander.levin@microsoft.com> Content-Language: en-US Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: From: Liam Breck [ 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 Cc: Hans de Goede Signed-off-by: Liam Breck Acked-by: Tony Lindgren Reviewed-by: Hans de Goede Signed-off-by: Sebastian Reichel Signed-off-by: Sasha Levin --- 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 ir= q, void *data) } } while (f_reg && ++i < 2); =20 + /* ignore over/under voltage fault after disconnect */ + if (f_reg =3D=3D (1 << BQ24190_REG_F_CHRG_FAULT_SHIFT) && + !(ss_reg & BQ24190_REG_SS_PG_STAT_MASK)) + f_reg =3D 0; + if (f_reg !=3D 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), --=20 2.14.1