linux-kernel - Re: [PATCH v9 5/5] nvmem: eeprom: add documentation of sysfs fram and sernum file

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Message-ID: <YMMn3T/cz2FxEt8X@kroah.com>
Date:   Fri, 11 Jun 2021 11:07:41 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Jiří Prchal <jiri.prchal@...ignal.cz>
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Rob Herring <robh+dt@...nel.org>,
        Christian Eggers <ceggers@...i.de>,
        Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH v9 5/5] nvmem: eeprom: add documentation of sysfs fram
 and sernum file

On Fri, Jun 11, 2021 at 11:01:57AM +0200, Jiří Prchal wrote:
> 
> 
> On 11. 06. 21 10:53, Greg Kroah-Hartman wrote:
> > On Fri, Jun 11, 2021 at 07:26:52AM +0200, Jiri Prchal wrote:
> > > +Description:
> > > +	Contains the FRAM binary data. Same as EEPROM, just another file
> > > +	name to indicate that it employs ferroelectric process.
> > > +	It performs write operations at bus speed - no write delays, capable
> > > +	of 10^14 read/write cycles and 151 years data retention.
> > 
> > Are you sure of these statistics?  Don't promise something here that
> > might not be true, this is not a marketing document :)
> 
> Just copied from datasheet. Is write at bus speed OK? And about others: much
> more then EEPROM would be OK? Or don't write about it?

I would not even mention it :)