linux-kernel - Re: [RFC v2 2/3] drivers: nvmem: Add QTI qfprom-efuse support

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Message-ID: <CAD=FV=VjgxvtwZVkq8nXRk_6aHDKQOGp3wp1YJBbsG=BZhVcKw@mail.gmail.com>
Date:   Mon, 15 Jun 2020 10:13:08 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Cc:     Ravi Kumar Bokka <rbokka@...eaurora.org>,
        Rob Herring <robh+dt@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Rajendra Nayak <rnayak@...eaurora.org>,
        Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>,
        dhavalp@...eaurora.org, mturney@...eaurora.org,
        sparate@...eaurora.org, c_rbokka@...eaurora.org,
        mkurumel@...eaurora.org
Subject: Re: [RFC v2 2/3] drivers: nvmem: Add QTI qfprom-efuse support

Hi,

On Mon, Jun 15, 2020 at 3:44 AM Srinivas Kandagatla
<srinivas.kandagatla@...aro.org> wrote:
>
> > * Reading should still read "corrected", not "raw".  Added a sysfs
> > knob to allow you to read "raw", though.
>
> We could create an additional nvmem read-only provider in future if
> required to read raw!.

Makes sense.  For now module parameter (which can be tweaked from
sysfs) seemed like at least an easy to get access to the raw values
for testing.  Other than for checking that the driver works OK,
though, I'm under the impression that you should never read the raw
values back.

-Doug