Re: [PATCH 2/2] iio: misc: add support for GPIO power switches

From: Linus Walleij
Date: Wed Dec 28 2016 - 07:50:32 EST

On Sun, Dec 11, 2016 at 11:21 PM, Bartosz Golaszewski
<bgolaszewski@xxxxxxxxxxxx> wrote:

> Some power-measuring ADCs work together with power load switches which
> allow to power-cycle measured devices.
> An example use case would be measuring the power consumption of a
> development board during boot using a power monitor such as TI INA226
> and power-cycling the board remotely using a TPS229* power switch.
> Add an iio driver for simple GPIO power switches and expose a sysfs
> attribute allowing to toggle their state.
> Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>

I don't get this, isn't this doing the same as

With the only difference that the latter uses the standard syscall
from pm_power_off to reboot the system instead of some random
sysfs file.

Linus Walleij