linux-kernel - Re: [PATCH v2 00/29] at24: remove at24_platform

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Message-ID: <e3e2e350-f520-8af5-b5d7-6844a58ca479@linaro.org>
Date:   Fri, 10 Aug 2018 09:41:49 +0100
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     Bartosz Golaszewski <brgl@...ev.pl>,
        Jonathan Corbet <corbet@....net>, Sekhar Nori <nsekhar@...com>,
        Kevin Hilman <khilman@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Boris Brezillon <boris.brezillon@...tlin.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Richard Weinberger <richard@....at>,
        Grygorii Strashko <grygorii.strashko@...com>,
        "David S . Miller" <davem@...emloft.net>,
        Naren <naren.kernel@...il.com>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Lukas Wunner <lukas@...ner.de>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Ivan Khoronzhuk <ivan.khoronzhuk@...aro.org>,
        Sven Van Asbroeck <svendev@...x.com>,
        Paolo Abeni <pabeni@...hat.com>, Alban Bedel <albeu@...e.fr>,
        Rob Herring <robh@...nel.org>,
        David Lechner <david@...hnology.com>,
        Andrew Lunn <andrew@...n.ch>
Cc:     linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-i2c@...r.kernel.org,
        linux-mtd@...ts.infradead.org, linux-omap@...r.kernel.org,
        netdev@...r.kernel.org,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: Re: [PATCH v2 00/29] at24: remove at24_platform_data



On 10/08/18 09:04, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bgolaszewski@...libre.com>
> 
> This is a follow-up to the previously rejected series[1] which partially
> removed the at24_platform_data structure. After further development and
> taking reviews into account, this series finally removes that struct
> completely but not without touching many different parts of the code
> base.
> 
> Since I took over maintainership of the at24 driver I've been working
> towards removing at24_platform_data in favor for device properties.
> 
> DaVinci is the only platform that's still using it - all other users
> have already been converted.
> 
> One of the obstacles in case of DaVinci is removing the setup() callback
> from the pdata struct, the only user of which are some davinci boards.
> 
> Most boards use the EEPROM to store the MAC address. This series adds
> support for cell lookups to the nvmem framework, registers relevant
> cells for all users, adds nvmem support to eth_platform_get_mac_address(),
> converts davinci_emac driver to using it and replaces at24_platform_data
> with device properties.
> 
> There's also one board (da850-evm) which uses MTD for reading the MAC
> address. I used the patch from Alban Bedel's previous submission[2] to
> add support for nvmem to the MTD framework. Since this user doesn't
> need device tree, I dropped Alban's patches modifying the DT bindings.
> We can add that later once an agreement is reached. For the time being
> MTD devices are registered as nvmem devices and we're registering the
> mac-address cell using the cell lookup mechanism.
> 
> This series adds a blocking notifier chain to the nvmem framework, so
> that we can keep the EEPROM reading code in the mityomapl138 board file
> with only slight modifications.
> 
> I also included some minor fixes to the modified code.
> 
> Tested on da850-evm & dm365-evm.
> 
> [1] https://lkml.org/lkml/2018/6/29/153
> [2] https://lkml.org/lkml/2018/3/24/312
> 
...

> Bartosz Golaszewski (28):
>    nvmem: add support for cell lookups
>    Documentation: nvmem: document lookup entries
>    nvmem: add a notifier chain
>    nvmem: provide nvmem_dev_name()
>    nvmem: remove the name field from struct nvmem_device
> 
>   Documentation/nvmem/nvmem.txt              |  28 +++++
..
>   drivers/nvmem/core.c                       | 106 ++++++++++++++++-

nvmem parts looks good to me other then few trivial kernel doc comments!
I can either Ack those patches or Send them after rc3-4 to Greg KH as 
4.20 material.

Thanks
srini

>