Re: [PATCH v3 1/5] power: supply: max17040: Add IRQ handler for low SOC alert

Krzysztof Kozlowski
2019-05-29T14:26:57Z

On Mon, 27 May 2019 at 04:45, Matheus Castello <matheus@castello.eng.br> 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 <matheus@castello.eng.br>
> ---
> drivers/power/supply/max17040_battery.c | 65 +++++++++++++++++++++++--
> 1 file changed, 60 insertions(+), 5 deletions(-)

Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>

Best regards,
Krzysztof