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Subject: Re: [PATCH] powerpc/powernv : Add support to enable sensor groups
To:     Michael Ellerman <mpe@ellerman.id.au>,
        linuxppc-dev@lists.ozlabs.org
References: <1511760988-10377-1-git-send-email-shilpa.bhat@linux.vnet.ibm.com>
 <87bmjmzla7.fsf@concordia.ellerman.id.au>
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        akshay.adiga@linux.vnet.ibm.com, svaidy@linux.vnet.ibm.com
From:   Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
Date:   Wed, 29 Nov 2017 12:31:41 +0530
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Hi,

On 11/28/2017 05:07 PM, Michael Ellerman wrote:
> Shilpasri G Bhat <shilpa.bhat@linux.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@linux.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?
> 

Disabling/Enabling sensor groups is not supported in the current generic sensors
API. And also we dont export all type of sensors in HWMON as not all of them are
environment sensors (like performance).

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

Will do.

Thanks and Regards,
Shilpa

> cheers
> 


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