Thanks Andrew for looking into this.
On 08/12/15 14:05, Andrew Lunn wrote:
This patches 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. 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. Andrew Lunn (6): 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 drivers/misc/eeprom/Kconfig | 9 +++ drivers/misc/eeprom/at24.c | 119 +++++++++++++++++++---------- drivers/misc/eeprom/at25.c | 147 ++++++++++++++++-------------------- drivers/misc/eeprom/eeprom_93xx46.c | 121 ++++++++++++++++++++++------- drivers/nvmem/Kconfig | 7 ++ drivers/nvmem/core.c | 132 ++++++++++++++++++++++++++++++-- include/linux/nvmem-provider.h | 11 +++ include/linux/spi/eeprom.h | 2 - 8 files changed, 393 insertions(+), 155 deletions(-)
I did test this patchset on my board with at24, series looks good. Other than some comments on few patches. --srini
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