netdev - Re: [PATCH v2 00/25] at24: remove

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Date:   Tue, 13 Nov 2018 15:04:22 +0100
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     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>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        "David S . Miller" <davem@...emloft.net>,
        Grygorii Strashko <grygorii.strashko@...com>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Wolfram Sang <wsa@...-dreams.de>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        linux-i2c <linux-i2c@...r.kernel.org>,
        "open list:MEMORY TECHNOLOGY..." <linux-mtd@...ts.infradead.org>,
        netdev <netdev@...r.kernel.org>,
        Linux-OMAP <linux-omap@...r.kernel.org>,
        devicetree <devicetree@...r.kernel.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: Re: [PATCH v2 00/25] at24: remove

wt., 13 lis 2018 o 15:01 Bartosz Golaszewski <brgl@...ev.pl> napisał(a):
>
> From: Bartosz Golaszewski <bgolaszewski@...libre.com>
>
> Now that nvmem has gained support for defining cells from board files and
> looking them up from relevant drivers[1], it's time for a respin of the
> previous series[2] that aims at removing struct at24_platform_data from
> the tree.
>
> 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.
>
> First we add support for nvmem to MTD in a way previously discussed with
> Boris Brezillon and Srinivas Kandagatla.
>
> Then, since most boards use the EEPROM to store the MAC address, we register
> relevant cells for all users, implement a function that allows to read
> the MAC address from nvmem (and also replaces the previous DT-specific
> variant) and make davinci_emac aware of it.
>
> Next we switch all davinci users to using at24 device properties instead
> of platform data. While we're at it: we remove all other traces of the
> setup callback and platform data from davinci.
>
> Finally we remove the at24 platform data structure.
>
> I kept the review tags in patches that haven't changed from the last
> submission.
>
> As far as merging of this series goes: I'd like to avoid dragging it over
> four releases. The series is logically split into five groups:
>
> patches 1-2: nvmem and mtd changes
> patches 3-9: davinci arch-specific changes
> patches 10-13: networking changes
> patches 14-24: davinci specific again
> patch 25: final at24 change
>
> With that I believe we can do the following: Greg KH could pick up the
> first two patches into his char-misc tree. Sekhar would take the second
> group and the third would go through the networking tree since the first
> three sets are not linked in any way. This would be merged for 4.21. Then
> for the next release Sekhar would pick up 14-24, provide an immutable
> branch for me and I'd merge the final patch for at24 and send it upstream
> through Wolfram's i2c tree (maybe we could even delay the i2c PR in the
> merge window to avoid the immutable branch altogether).
>
> [1] https://lkml.org/lkml/2018/9/21/293
> [2] https://lkml.org/lkml/2018/8/8/528
>
> Alban Bedel (1):
>   mtd: add support for reading MTD devices via the nvmem API
>
> Bartosz Golaszewski (24):
>   nvmem: add new config option
>   ARM: davinci: dm365-evm: use cell nvmem lookup for mac address
>   ARM: davinci: dm644x-evm: use cell nvmem lookup for mac address
>   ARM: davinci: dm646x-evm: use cell nvmem lookup for mac address
>   ARM: davinci: da830-evm: use cell nvmem lookup for mac address
>   ARM: davinci: mityomapl138: use cell nvmem lookup for mac address
>   ARM: davinci: dm850-evm: use cell nvmem lookup for mac address
>   ARM: davinci: da850-evm: remove unnecessary include
>   net: ethernet: provide nvmem_get_mac_address()
>   net: cadence: switch to using nvmem_get_mac_address()
>   of: net: kill of_get_nvmem_mac_address()
>   net: davinci_emac: use nvmem_get_mac_address()
>   ARM: davinci: da850-evm: remove dead MTD code
>   ARM: davinci: mityomapl138: don't read the MAC address from machine
>     code
>   ARM: davinci: dm365-evm: use device properties for at24 eeprom
>   ARM: davinci: da830-evm: use device properties for at24 eeprom
>   ARM: davinci: dm644x-evm: use device properties for at24 eeprom
>   ARM: davinci: dm646x-evm: use device properties for at24 eeprom
>   ARM: davinci: sffsdr: fix the at24 eeprom device name
>   ARM: davinci: sffsdr: use device properties for at24 eeprom
>   ARM: davinci: remove dead code related to MAC address reading
>   ARM: davinci: mityomapl138: use nvmem notifiers
>   ARM: davinci: mityomapl138: use device properties for at24 eeprom
>   eeprom: at24: remove at24_platform_data
>
>  MAINTAINERS                                |   1 -
>  arch/arm/mach-davinci/board-da830-evm.c    |  39 ++++-
>  arch/arm/mach-davinci/board-da850-evm.c    |  58 ++++----
>  arch/arm/mach-davinci/board-dm365-evm.c    |  38 ++++-
>  arch/arm/mach-davinci/board-dm644x-evm.c   |  37 ++++-
>  arch/arm/mach-davinci/board-dm646x-evm.c   |  37 ++++-
>  arch/arm/mach-davinci/board-mityomapl138.c |  67 ++++++---
>  arch/arm/mach-davinci/board-sffsdr.c       |  13 +-
>  arch/arm/mach-davinci/common.c             |  15 --
>  drivers/misc/eeprom/at24.c                 | 162 ++++++++++-----------
>  drivers/mtd/Kconfig                        |   1 +
>  drivers/mtd/mtdcore.c                      |  56 +++++++
>  drivers/net/ethernet/cadence/macb_main.c   |   2 +-
>  drivers/net/ethernet/ti/davinci_emac.c     |  14 +-
>  drivers/nvmem/core.c                       |   3 +-
>  drivers/of/of_net.c                        |  39 -----
>  include/linux/davinci_emac.h               |   1 -
>  include/linux/etherdevice.h                |   1 +
>  include/linux/mtd/mtd.h                    |   2 +
>  include/linux/nvmem-provider.h             |   2 +
>  include/linux/of_net.h                     |   6 -
>  include/linux/platform_data/at24.h         |  60 --------
>  net/ethernet/eth.c                         |  38 +++++
>  23 files changed, 391 insertions(+), 301 deletions(-)
>  delete mode 100644 include/linux/platform_data/at24.h
>
> --
> 2.19.1
>

Ugh the subject was supposed to be: at24: remove platform data...