From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 80C66C48BE0 for ; Fri, 11 Jun 2021 09:02:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 65A5A61181 for ; Fri, 11 Jun 2021 09:02:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231478AbhFKJD5 (ORCPT ); Fri, 11 Jun 2021 05:03:57 -0400 Received: from router.aksignal.cz ([62.44.4.214]:56292 "EHLO router.aksignal.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230460AbhFKJD4 (ORCPT ); Fri, 11 Jun 2021 05:03:56 -0400 Received: from localhost (localhost [127.0.0.1]) by router.aksignal.cz (Postfix) with ESMTP id 3ED8647326; Fri, 11 Jun 2021 11:01:58 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at router.aksignal.cz Received: from router.aksignal.cz ([127.0.0.1]) by localhost (router.aksignal.cz [127.0.0.1]) (amavisd-new, port 10026) with LMTP id ILpsyLn6D_EX; Fri, 11 Jun 2021 11:01:57 +0200 (CEST) Received: from [172.25.161.48] (unknown [83.240.30.185]) (Authenticated sender: jiri.prchal@aksignal.cz) by router.aksignal.cz (Postfix) with ESMTPSA id C0ABC47325; Fri, 11 Jun 2021 11:01:57 +0200 (CEST) Subject: Re: [PATCH v9 5/5] nvmem: eeprom: add documentation of sysfs fram and sernum file To: Greg Kroah-Hartman Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Rob Herring , Christian Eggers , Arnd Bergmann References: <20210611052652.7894-1-jiri.prchal@aksignal.cz> <20210611052652.7894-6-jiri.prchal@aksignal.cz> From: =?UTF-8?B?SmnFmcOtIFByY2hhbA==?= Message-ID: <8ff601c4-776b-3973-2855-eb2013e72200@aksignal.cz> Date: Fri, 11 Jun 2021 11:01:57 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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?