linux-kernel - Re: [PATCH] powerpc/powernv : Add support to enable sensor groups

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Date:   Tue, 28 Nov 2017 22:37:36 +1100
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Shilpasri G Bhat <shilpa.bhat@...ux.vnet.ibm.com>,
        linuxppc-dev@...ts.ozlabs.org
Cc:     linux-kernel@...r.kernel.org, ego@...ux.vnet.ibm.com,
        akshay.adiga@...ux.vnet.ibm.com, svaidy@...ux.vnet.ibm.com,
        Shilpasri G Bhat <shilpa.bhat@...ux.vnet.ibm.com>
Subject: Re: [PATCH] powerpc/powernv : Add support to enable sensor groups

Shilpasri G Bhat <shilpa.bhat@...ux.vnet.ibm.com> writes:

> Adds support to enable/disable a sensor group. This can be used to
> select the sensor groups that needs to be copied to main memory by
> OCC. Sensor groups like power, temperature, current, voltage,
> frequency, utilization can be enabled/disabled at runtime.
>
> Signed-off-by: Shilpasri G Bhat <shilpa.bhat@...ux.vnet.ibm.com>
> ---
> The skiboot patch for the opal call is posted below:
> https://lists.ozlabs.org/pipermail/skiboot/2017-November/009713.html

Can you remind me why we're doing this with a completely bespoke sysfs
API, rather than using some generic sensors API?

And if we must do it that way, please add documentation for the sysfs
file(s) in Documentation/ABI/.

cheers