Re: [PATCH 2/2] iio: misc: add support for GPIO power switches
From: Sebastian Reichel
Date: Thu Dec 29 2016 - 11:29:33 EST
On Wed, Dec 28, 2016 at 01:50:17PM +0100, Linus Walleij wrote:
> 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.
As far as I understand it, the TPS229 is used by Barzosz to poweroff
a remote system. The gpio-poweroff driver is used to poweroff the
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