From: Andrew Lunn <andrew@lunn.ch>
To: GregKH <greg@kroah.com>
Cc: srinivas.kandagatla@linaro.org, maxime.ripard@free-electrons.com,
wsa@the-dreams.de, broonie@kernel.org, vz@mleia.com, fd@ti.com,
linux-kernel@vger.kernel.org, pantelis.antoniou@konsulko.com,
bgolaszewski@baylibre.com, Andrew Lunn <andrew@lunn.ch>
Subject: [PATCHv4 0/7] Convert exiting EEPROM drivers to NVMEM
Date: Wed, 17 Feb 2016 00:41:30 +0100 [thread overview]
Message-ID: <1455666097-9115-1-git-send-email-andrew@lunn.ch> (raw)
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.
AT24 and 93xx46 has been boot tested, at25 compile tested only.
v2:
nvmem_register() now supports a backwards compatible flag, and the
Kconfig option has been removed.
v3:
Rebase on v4.5-rc1.
Add a patch to replace memory_accessor in the setup() callbacks with
nvmem API calls
v4:
Rebase on v4.5-rc3
Fix lockdep key in patch #2
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 | 122 +++++++++++++++++++-----
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, 387 insertions(+), 201 deletions(-)
--
2.7.0
next reply other threads:[~2016-02-16 23:43 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-16 23:41 Andrew Lunn [this message]
2016-02-16 23:41 ` [PATCHv4 1/7] nvmem: Add flag to export NVMEM to root only Andrew Lunn
2016-02-17 10:17 ` Srinivas Kandagatla
2016-02-17 13:32 ` Andrew Lunn
2016-02-16 23:41 ` [PATCHv4 2/7] nvmem: Add backwards compatibility support for older EEPROM drivers Andrew Lunn
2016-02-17 10:17 ` Srinivas Kandagatla
2016-02-17 13:27 ` Andrew Lunn
2016-02-16 23:41 ` [PATCHv4 3/7] eeprom: at24: extend driver to plug into the NVMEM framework Andrew Lunn
2016-02-17 10:17 ` Srinivas Kandagatla
2016-02-17 10:21 ` Wolfram Sang
2016-02-17 11:00 ` Srinivas Kandagatla
2016-02-17 11:00 ` Srinivas Kandagatla
2016-02-16 23:41 ` [PATCHv4 4/7] eeprom: at25: Remove in kernel API for accessing the EEPROM Andrew Lunn
2016-02-17 10:17 ` Srinivas Kandagatla
2016-02-16 23:41 ` [PATCHv4 5/7] eeprom: at25: extend driver to plug into the NVMEM framework Andrew Lunn
2016-02-17 10:17 ` Srinivas Kandagatla
2016-02-17 13:42 ` Andrew Lunn
2016-02-17 13:45 ` Srinivas Kandagatla
2016-02-16 23:41 ` [PATCHv4 6/7] eeprom: 93xx46: " Andrew Lunn
2016-02-17 10:17 ` Srinivas Kandagatla
2016-02-17 13:46 ` Srinivas Kandagatla
2016-02-16 23:41 ` [PATCHv4 7/7] misc: at24: replace memory_accessor with nvmem_device_read Andrew Lunn
2016-02-17 10:18 ` Srinivas Kandagatla
2016-02-17 10:17 ` [PATCHv4 0/7] Convert exiting EEPROM drivers to NVMEM Srinivas Kandagatla
2016-02-17 13:39 ` Andrew Lunn
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