[PATCH 00/14] nvmem: updates for 7.3

[srini@kernel.org]

From: Srinivas Kandagatla <srini@kernel.org>

Hi Greg,

This series collects the nvmem changes that can be queued for 7.3.

Highlights:

 - Core: split the reg_read/write() callbacks out of struct nvmem_device
   into a separate ops structure and protect nvmem_device::ops with
   SRCU. After nvmem_unregister() returns, the device stops accepting
   consumer calls (they get -ENODEV) so we no longer reach into the
   provider's memory once it has gone. Cell entries are now destroyed
   in .release() so outstanding nvmem_cell handles remain valid until
   the last reference drops.

 - Core cleanups leading up to the SRCU conversion: return -EOPNOTSUPP
   to in-kernel users when the read/write callback is missing, simplify
   locking with guard(), drop __nvmem_device_put() and the duplicated
   reference counting, simplify nvmem_sysfs_remove_compat(), check the
   return value of gpiod_set_value_cansleep(), and remove an unused
   field from struct nvmem_device.

 - Move the nvmem-based EEPROM drivers (at24, at25, ee1004,
   eeprom_93xx46, m24lr) from drivers/misc/eeprom/ to drivers/nvmem/
   so the review path and get_maintainer.pl output match the subsystem
   they actually belong to.

 - brcm_nvram: reject empty NVRAM partitions and fix an out-of-bounds
   access on malformed flash data where header->len sat between the
   allocated data buffer size and the full partition size.

 - airoha: add an ARM64 dependency.

 - dt-bindings: document qcom,qfprom compatibles for ipq5210 and
   ipq9650.

These patches are rebased on top of char-misc-next:

  https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git/log/?h=char-misc-next

and depend on the nvmem fixes series I sent earlier:

  https://lkml.org/lkml/2026/7/24/2035

Thanks,
srini

Arnd Bergmann (1):
  nvmem: airoha: add ARM64 dependency

Bartosz Golaszewski (10):
  nvmem: remove unused field from struct nvmem_device
  nvmem: return -EOPNOTSUPP to in-kernel users on missing callbacks
  nvmem: check the return value of gpiod_set_value_cansleep()
  nvmem: simplify locking with guard()
  nvmem: remove unneeded __nvmem_device_put()
  nvmem: split out the reg_read/write() callbacks out of struct
    nvmem_device
  nvmem: simplify nvmem_sysfs_remove_compat()
  nvmem: remove duplicated reference counting
  nvmem: protect nvmem_device::ops with SRCU
  eeprom: move nvmem EEPROM drivers to drivers/nvmem/

Rosen Penev (2):
  nvmem: brcm_nvram: reject empty NVRAM partition
  nvmem: brcm_nvram: fix out-of-bounds access on malformed flash data

Varadarajan Narayanan (1):
  dt-bindings: nvmem: qfprom: Add ipq5210 & ipq9650 compatible

 .../bindings/nvmem/qcom,qfprom.yaml           |   2 +
 MAINTAINERS                                   |   4 +-
 drivers/misc/eeprom/Kconfig                   |  93 ------
 drivers/misc/eeprom/Makefile                  |   5 -
 drivers/nvmem/Kconfig                         |  88 +++++
 drivers/nvmem/Makefile                        |   5 +
 drivers/{misc/eeprom => nvmem}/at24.c         |   0
 drivers/{misc/eeprom => nvmem}/at25.c         |   0
 drivers/nvmem/brcm_nvram.c                    |  15 +-
 drivers/nvmem/core.c                          | 311 ++++++++++--------
 drivers/{misc/eeprom => nvmem}/ee1004.c       |   0
 .../{misc/eeprom => nvmem}/eeprom_93xx46.c    |   0
 drivers/nvmem/internals.h                     |  13 +-
 drivers/{misc/eeprom => nvmem}/m24lr.c        |   0
 14 files changed, 284 insertions(+), 252 deletions(-)
 rename drivers/{misc/eeprom => nvmem}/at24.c (100%)
 rename drivers/{misc/eeprom => nvmem}/at25.c (100%)
 rename drivers/{misc/eeprom => nvmem}/ee1004.c (100%)
 rename drivers/{misc/eeprom => nvmem}/eeprom_93xx46.c (100%)
 rename drivers/{misc/eeprom => nvmem}/m24lr.c (100%)

-- 
2.53.0