This series adds the intial support to handle EEPROMs via the MTD layer
as well. This allow the user-space to have separate paritions since
EEPROMs can become quite large nowadays.
With this patchset applied EEPROMs can be accessed via:
- legacy 'eeprom' device
- nvmem device
- mtd device(s)
The patchset targets only the AT24 (I2C) EEPROMs since I have no access
to AT25 (SPI) EEPROMs nor to one of the other misc/eeprom/* devices.
Note: I'm not familiar with Kconfig symbol migration so I don't know if
the last patch is required at the moment. Please be notified that the
list of recipients is quite large due to the defconfig changes.
Regards,
Marco
Signed-off-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx>
---
Marco Felsch (9):
mtd: core: add nvmem_write support
mtd: add mtd_is_master helper
mtd: add support to handle EEPROM devices
mtd: devices: add AT24 eeprom support
ARM: defconfig: convert to MTD_EEPROM_AT24
powerpc: convert to MTD_EEPROM_AT24
MIPS: configs: convert to MTD_EEPROM_AT24
LoongArch: convert to MTD_EEPROM_AT24
eeprom: at24: remove deprecated Kconfig symbol
MAINTAINERS | 2 +-
arch/arm/configs/aspeed_g4_defconfig | 2 +-
arch/arm/configs/aspeed_g5_defconfig | 2 +-
arch/arm/configs/at91_dt_defconfig | 2 +-
arch/arm/configs/axm55xx_defconfig | 2 +-
arch/arm/configs/davinci_all_defconfig | 2 +-
arch/arm/configs/imx_v4_v5_defconfig | 2 +-
arch/arm/configs/imx_v6_v7_defconfig | 2 +-
arch/arm/configs/ixp4xx_defconfig | 2 +-
arch/arm/configs/keystone_defconfig | 2 +-
arch/arm/configs/lpc18xx_defconfig | 2 +-
arch/arm/configs/lpc32xx_defconfig | 2 +-
arch/arm/configs/multi_v5_defconfig | 2 +-
arch/arm/configs/multi_v7_defconfig | 2 +-
arch/arm/configs/mvebu_v5_defconfig | 2 +-
arch/arm/configs/mvebu_v7_defconfig | 2 +-
arch/arm/configs/mxs_defconfig | 2 +-
arch/arm/configs/omap2plus_defconfig | 2 +-
arch/arm/configs/pxa_defconfig | 2 +-
arch/arm/configs/s3c6400_defconfig | 2 +-
arch/arm/configs/sama5_defconfig | 2 +-
arch/arm/configs/sama7_defconfig | 2 +-
arch/arm/configs/shmobile_defconfig | 2 +-
arch/arm/configs/socfpga_defconfig | 2 +-
arch/arm/configs/tegra_defconfig | 2 +-
arch/arm/configs/wpcm450_defconfig | 2 +-
arch/loongarch/configs/loongson3_defconfig | 2 +-
arch/mips/configs/cavium_octeon_defconfig | 2 +-
arch/mips/configs/db1xxx_defconfig | 2 +-
arch/powerpc/configs/44x/warp_defconfig | 2 +-
arch/powerpc/configs/mpc512x_defconfig | 2 +-
arch/powerpc/configs/mpc5200_defconfig | 2 +-
arch/powerpc/configs/ppc6xx_defconfig | 2 +-
arch/powerpc/configs/skiroot_defconfig | 2 +-
drivers/misc/eeprom/Kconfig | 31 -------
drivers/misc/eeprom/Makefile | 1 -
drivers/mtd/devices/Kconfig | 31 +++++++
drivers/mtd/devices/Makefile | 1 +
drivers/{misc/eeprom => mtd/devices}/at24.c | 122 +++++++++++++++-------------
drivers/mtd/mtdcore.c | 49 ++++++++++-
include/linux/mtd/mtd.h | 5 ++
include/uapi/mtd/mtd-abi.h | 2 +
42 files changed, 187 insertions(+), 123 deletions(-)
---
base-commit: 1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0
change-id: 20240701-b4-v6-10-topic-usbc-tcpci-c4bc9bcce604
Best regards,
--
Marco Felsch <m.felsch@xxxxxxxxxxxxxx>
