From mboxrd@z Thu Jan 1 00:00:00 1970 From: Krzysztof Kozlowski Subject: Re: [PATCH v3 1/5] power: supply: max17040: Add IRQ handler for low SOC alert Date: Wed, 29 May 2019 16:26:35 +0200 Message-ID: References: <20190527022258.32748-1-matheus@castello.eng.br> <20190527022258.32748-2-matheus@castello.eng.br> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Return-path: In-Reply-To: <20190527022258.32748-2-matheus@castello.eng.br> Sender: linux-kernel-owner@vger.kernel.org To: Matheus Castello Cc: sre@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, Chanwoo Choi , =?UTF-8?B?QmFydMWCb21pZWogxbtvxYJuaWVya2lld2ljeg==?= , lee.jones@linaro.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: devicetree@vger.kernel.org On Mon, 27 May 2019 at 04:45, Matheus Castello wrote: > > According datasheet max17040 has a pin for alert host for low SOC. > This pin can be used as external interrupt, so we need to check for > interrupts assigned for device and handle it. > > In handler we are checking and storing fuel gauge registers values > and send an uevent to notificate user space, so user space can decide > save work or turn off since the alert demonstrate that the battery may > no have the power to keep the system turned on for much longer. > > Signed-off-by: Matheus Castello > --- > drivers/power/supply/max17040_battery.c | 65 +++++++++++++++++++++++-- > 1 file changed, 60 insertions(+), 5 deletions(-) Reviewed-by: Krzysztof Kozlowski Best regards, Krzysztof