linux-kernel - Re: [ v2] hwmon: (pmbus) Add Wistron power supply pmbus driver

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Date:   Thu, 12 Dec 2019 18:28:24 -0800
From:   Guenter Roeck <linux@...ck-us.net>
To:     Eddie James <eajames@...ux.ibm.com>, Ben Pai <Ben_Pai@...tron.com>
Cc:     robh+dt@...nel.org, jdelvare@...e.com,
        linux-kernel@...r.kernel.org, linux-hwmon@...r.kernel.org,
        devicetree@...r.kernel.org, corbet@....net, wangat@...ibm.com,
        Andy_YF_Wang@...tron.com, Claire_Ku@...tron.com
Subject: Re: [ v2] hwmon: (pmbus) Add Wistron power supply pmbus driver

On 12/12/19 3:54 PM, Eddie James wrote:
> 
> On 12/8/19 7:44 AM, Ben Pai wrote:
>> Add the driver to monitor Wisreon power supplies with hwmon over pmbus.
> 
> 
> Hi Ben.
> 
> 
> This driver looks very similar to the IBM CFFPS driver. If you think they are similar enough, you may want to simply add a new version to that driver that supports your PSU.
> 

It would be nice to have datasheets for those power supplies.

Eddie - is it possible that the IBM power supply supports the WRITE_PROTECT
command and has a write protect bit set ? If yes, I just submitted a patch
for the PMBus core to address the situation; see
https://patchwork.kernel.org/patch/11289717/

Thanks,
Guenter