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From: Miquel Raynal <miquel.raynal@bootlin.com>
To: Marco Felsch <m.felsch@pengutronix.de>
Cc: "Andrew Lunn" <andrew@lunn.ch>,
	"Alexandre Belloni" <alexandre.belloni@bootlin.com>,
	"Vignesh Raghavendra" <vigneshr@ti.com>,
	"Geert Uytterhoeven" <geert+renesas@glider.be>,
	imx@lists.linux.dev, "Tony Lindgren" <tony@atomide.com>,
	"Nicolas Ferre" <nicolas.ferre@microchip.com>,
	"Thierry Reding" <thierry.reding@gmail.com>,
	linux-mtd@lists.infradead.org, linux-i2c@vger.kernel.org,
	"WANG Xuerui" <kernel@xen0n.name>,
	"Fabio Estevam" <festevam@gmail.com>,
	linux-aspeed@lists.ozlabs.org,
	"Richard Weinberger" <richard@nod.at>,
	"Gregory Clement" <gregory.clement@bootlin.com>,
	"Huacai Chen" <chenhuacai@kernel.org>,
	"Russell King" <linux@armlinux.org.uk>,
	"Christophe Leroy" <christophe.leroy@csgroup.eu>,
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	openbmc@lists.ozlabs.org, "Sascha Hauer" <s.hauer@pengutronix.de>,
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	loongarch@lists.linux.dev, linux-tegra@vger.kernel.org,
	linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	"Thomas Bogendoerfer" <tsbogend@alpha.franken.de>,
	linux-mips@vger.kernel.org,
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	"Claudiu Beznea" <claudiu.beznea@tuxon.dev>,
	linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
	"Dinh Nguyen" <dinguyen@kernel.org>,
	"Pengutronix Kernel Team" <kernel@pengutronix.de>,
	"Shawn Guo" <shawnguo@kernel.org>,
	"Bartosz Golaszewski" <brgl@bgdev.pl>,
	"Pratyush Yadav" <pratyush@kernel.org>
Subject: Re: [PATCH 4/9] mtd: devices: add AT24 eeprom support
Date: Wed, 17 Jul 2024 10:19:48 +0200	[thread overview]
Message-ID: <20240717101948.2e99f472@xps-13> (raw)
In-Reply-To: <20240709103841.7x7n4hdtqrunyoc3@pengutronix.de>

Hi Marco,

> > > > Overall I think the idea of getting rid of these misc/ drivers is goes
> > > > into the right direction, but registering directly into NVMEM makes
> > > > more sense IMO.    
> > > 
> > > So you propose to have two places for the partition handling (one for
> > > MTD and one for NVMEM) instead of one and moving the code into NVMEM
> > > directly?  
> > 
> > Why two places for the partitions handling? Just one, in NVMEM. Also  
> 
> Without checking the details I think that converting the MTD
> partitioning code into NVMEM partitioning code is a bigger task. As you
> said below there are many legacy code paths you need to consider so they
> still work afterwards as well.
> 
> > usually EEPROMs don't require very advanced partitioning schemes,
> > unlike flashes (which are the most common MTD devices today).  
> 
> As said in my cover letter EEPROMs can become quite large and MTD
> supports partitioning storage devices which is very handy for large
> EEPROMs as well.

Did you had a look at nvmem-layouts ? In particular the fixed-layout.

Is there anything you would like to achieve already that is not
possible with nvmem but is with mtd?

Thanks,
Miquèl

  reply	other threads:[~2024-07-17  8:21 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-01 13:53 [PATCH 0/9] AT24 EEPROM MTD Support Marco Felsch
2024-07-01 13:53 ` [PATCH 1/9] mtd: core: add nvmem_write support Marco Felsch
2024-07-01 13:53 ` [PATCH 2/9] mtd: add mtd_is_master helper Marco Felsch
2024-07-01 16:14   ` Sergei Shtylyov
2024-07-02  8:22     ` Marco Felsch
2024-07-01 13:53 ` [PATCH 3/9] mtd: add support to handle EEPROM devices Marco Felsch
2024-07-01 13:53 ` [PATCH 4/9] mtd: devices: add AT24 eeprom support Marco Felsch
2024-07-01 16:14   ` Tudor Ambarus
2024-07-02 13:41     ` Pratyush Yadav
2024-07-02 13:56       ` Maxime Ripard
2024-07-02 14:15         ` Pratyush Yadav
2024-07-02 14:34           ` Maxime Ripard
2024-07-08  6:44             ` Miquel Raynal
2024-07-09  9:22               ` Marco Felsch
2024-07-09  9:43                 ` Miquel Raynal
2024-07-09 10:38                   ` Marco Felsch
2024-07-17  8:19                     ` Miquel Raynal [this message]
2024-07-18  9:17                       ` Marco Felsch
2024-08-23 15:37                         ` Miquel Raynal
2024-07-01 13:53 ` [PATCH 5/9] ARM: defconfig: convert to MTD_EEPROM_AT24 Marco Felsch
2024-07-10 12:48   ` Arnd Bergmann
2024-07-10 12:59     ` Bartosz Golaszewski
2024-07-10 14:06       ` Arnd Bergmann
2024-07-01 13:53 ` [PATCH 6/9] powerpc: " Marco Felsch
2024-07-01 13:53 ` [PATCH 7/9] MIPS: configs: " Marco Felsch
2024-07-01 13:53 ` [PATCH 8/9] LoongArch: " Marco Felsch
2024-07-01 13:53 ` [PATCH 9/9] eeprom: at24: remove deprecated Kconfig symbol Marco Felsch
2024-07-02  8:57   ` Bartosz Golaszewski
2024-07-02  9:15     ` Marco Felsch
2024-08-23 16:24 ` [PATCH 0/9] AT24 EEPROM MTD Support Andy Shevchenko
2024-08-26  7:51   ` Marco Felsch
2024-08-26 10:32     ` Andy Shevchenko

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