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* Energy counters for PMBUS
@ 2021-04-02 13:19 zlukwins
  2021-04-03  3:16 ` Guenter Roeck
  0 siblings, 1 reply; 2+ messages in thread
From: zlukwins @ 2021-04-02 13:19 UTC (permalink / raw)
  To: Guenter Roeck; +Cc: linux-hwmon

Hi,


I am OpenBMC FW developer. We have a use cases which require PSU devices 
energy counters reading. Looks like hwmon:pmbus does not support that 
right now.

Hwmon sysfs 
(https://www.kernel.org/doc/Documentation/hwmon/sysfs-interface) already 
supports energy counter (energy[1-*]_input).

PMBus standard (revision 1.3.1) provides API for getting energy - 
READ_EIN/READ_EOUT commands.

So I am wondering whether we could just add this implementation to the 
hwmon/pmbus/pmbus_core.c? Or maybe there are some constraints?


Thanks

Zbigniew



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2021-04-02 13:19 Energy counters for PMBUS zlukwins
2021-04-03  3:16 ` Guenter Roeck

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