linux-kernel - Re: [PATCH v4 3/4] nvmem: qfprom: Add fuse blowing support

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Message-ID: <CAD=FV=UcqYzrb_H3YJ=UGpRYMkNiRgG8_EaJazK-8+WCfK4msQ@mail.gmail.com>
Date:   Wed, 1 Jul 2020 08:13:56 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     "Ravi Kumar Bokka (Temp)" <rbokka@...eaurora.org>
Cc:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Andy Gross <agross@...nel.org>, mturney@...eaurora.org,
        Jeffrey Hugo <jhugo@...eaurora.org>,
        Rajendra Nayak <rnayak@...eaurora.org>, dhavalp@...eaurora.org,
        Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>,
        sparate@...eaurora.org,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        mkurumel@...eaurora.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 3/4] nvmem: qfprom: Add fuse blowing support

Hi,

On Wed, Jul 1, 2020 at 8:09 AM Ravi Kumar Bokka (Temp)
<rbokka@...eaurora.org> wrote:
>
> Hi Doug,
> I have tested v4 changes internally on target, if i am giving input as
> unaligned address, it's not throwing any error message.

You mean if you _read_ from an unaligned address, right?  Yes, this is
on purpose and by design.

1. It appears to work fine.

2. If we didn't allow this then we would break compatibility with
existing dts files and existing users of sysfs that want to read here.

-Doug