lkml.org 
[lkml]   [2016]   [Feb]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    Subject[PATCHv7 0/7] Convert exiting EEPROM drivers to NVMEM
    Date
    This patch set converts the old EEPROM drivers in driver/misc/eeprom to
    use the NVMEM framework. These drivers export there content in /sys as
    read only to root, since the EEPROM may contain sensitive information.
    So the first patch adds a flag so the NVMEM framework will create its
    file in /sys as root read only.

    To keep backwards compatibility with these older drivers, the contents
    of the EEPROM must be exports in sysfs in a file called eeprom in the
    devices node in sys, where as the NVMEM places them under class/nvmem.
    So add this optional backwards compatible to the framework, again
    using a flag.

    Then convert the at24, at25 and 93xx46 by adding regmap support,
    removing each drivers own /sys code and registering with the NVMEM
    framework.

    Lastly, the old memory accessor mechanism has been replaced with the
    nvmem equivalent.

    v7:
    Added more acked-by
    Added tested-by for patch #7
    Rebased onto current misc-char/misc-char-next.

    Andrew Lunn (7):
    nvmem: Add flag to export NVMEM to root only
    nvmem: Add backwards compatibility support for older EEPROM drivers.
    eeprom: at24: extend driver to plug into the NVMEM framework
    eeprom: at25: Remove in kernel API for accessing the EEPROM
    eeprom: at25: extend driver to plug into the NVMEM framework
    eeprom: 93xx46: extend driver to plug into the NVMEM framework
    misc: at24: replace memory_accessor with nvmem_device_read

    arch/arm/mach-davinci/board-mityomapl138.c | 5 +-
    arch/arm/mach-davinci/common.c | 4 +-
    drivers/misc/eeprom/Kconfig | 6 ++
    drivers/misc/eeprom/at24.c | 130 +++++++++++++------------
    drivers/misc/eeprom/at25.c | 148 +++++++++++++----------------
    drivers/misc/eeprom/eeprom_93xx46.c | 120 +++++++++++++++++------
    drivers/nvmem/core.c | 141 +++++++++++++++++++++++++--
    include/linux/davinci_emac.h | 4 +-
    include/linux/memory.h | 11 ---
    include/linux/nvmem-provider.h | 5 +-
    include/linux/platform_data/at24.h | 10 +-
    include/linux/spi/eeprom.h | 2 -
    12 files changed, 384 insertions(+), 202 deletions(-)

    --
    2.7.0

    \
     
     \ /
      Last update: 2016-02-26 21:41    [W:5.349 / U:0.340 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site