linux-toradex.git/drivers/nvmem, branch v6.19

Merge tag 'char-misc-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2025-12-07T02:34:24+00:00

Pull char/misc/IIO driver updates from Greg KH:
 "Here is the big set of char/misc/iio driver updates for 6.19-rc1. Lots
  of stuff in here including:

   - lots of IIO driver updates, cleanups, and additions

   - large interconnect driver changes as they get converted over to a
     dynamic system of ids

   - coresight driver updates

   - mwave driver updates

   - binder driver updates and changes

   - comedi driver fixes now that the fuzzers are being set loose on
     them

   - nvmem driver updates

   - new uio driver addition

   - lots of other small char/misc driver updates, full details in the
     shortlog

  All of these have been in linux-next for a while now"

* tag 'char-misc-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (304 commits)
  char: applicom: fix NULL pointer dereference in ac_ioctl
  hangcheck-timer: fix coding style spacing
  hangcheck-timer: Replace %Ld with %lld
  hangcheck-timer: replace printk(KERN_CRIT) with pr_crit
  uio: Add SVA support for PCI devices via uio_pci_generic_sva.c
  dt-bindings: slimbus: fix warning from example
  intel_th: Fix error handling in intel_th_output_open
  misc: rp1: Fix an error handling path in rp1_probe()
  char: xillybus: add WQ_UNBOUND to alloc_workqueue users
  misc: bh1770glc: use pm_runtime_resume_and_get() in power_state_store
  misc: cb710: Fix a NULL vs IS_ERR() check in probe()
  mux: mmio: Add suspend and resume support
  virt: acrn: split acrn_mmio_dev_res out of acrn_mmiodev
  greybus: gb-beagleplay: Fix timeout handling in bootloader functions
  greybus: add WQ_PERCPU to alloc_workqueue users
  char/mwave: drop typedefs
  char/mwave: drop printk wrapper
  char/mwave: remove printk tracing
  char/mwave: remove unneeded fops
  char/mwave: remove MWAVE_FUTZ_WITH_OTHER_DEVICES ifdeffery
  ...

nvmem: layouts: fix nvmem_layout_bus_uevent

2025-11-24T17:08:10+00:00

correctly check the ENODEV return value.

Fixes: 810b790033cc ("nvmem: layouts: fix automatic module loading")
CC: stable@vger.kernel.org
Co-developed-by: WangYuli 
Signed-off-by: WangYuli 
Signed-off-by: Wentao Guan 
Signed-off-by: Srinivas Kandagatla 
Link: https://patch.msgid.link/20251114110539.143154-1-srini@kernel.org
Signed-off-by: Greg Kroah-Hartman

nvmem: imx-ocotp-ele: Add i.MX94 OCOTP support

2025-11-24T17:06:22+00:00

Add OCOTP device type for i.MX94, including register offset, total size,
and fuse layout. This enables NVMEM access to the eFuse of i.MX94.

Signed-off-by: Alice Guo 
Reviewed-by: Peng Fan 
Reviewed-by: Frank Li 
Signed-off-by: Srinivas Kandagatla 
Link: https://patch.msgid.link/20251114110636.143268-9-srini@kernel.org
Signed-off-by: Greg Kroah-Hartman

nvmem: layouts: u-boot-env: add optional "env-size" property

2025-11-24T17:06:22+00:00

Some devices reserve a larger NVMEM region for the U-Boot environment
than the actual environment data length used by U-Boot itself. The CRC32
in the U-Boot header is calculated over the smaller data length, causing
CRC validation to fail when Linux reads the full partition.

Allow an optional device tree property "env-size" to specify the
environment data size to use for CRC computation.

v2: add missing $ref line to DT binding

Signed-off-by: Jascha Sundaresan 
Reviewed-by: Rob Herring (Arm) 
Signed-off-by: Srinivas Kandagatla 
Link: https://patch.msgid.link/20251114110636.143268-5-srini@kernel.org
Signed-off-by: Greg Kroah-Hartman

nvmem: Add driver for the eeprom in qnap-mcu controllers

2025-11-24T17:06:22+00:00

The qnap-mcu also has an eeprom connected to it, that contains some
specific product-information like the mac addresses for the network
interfaces.

Add a nvmem driver for it.

Signed-off-by: Heiko Stuebner 
Acked-by: Srinivas Kandagatla 
Signed-off-by: Srinivas Kandagatla 
Link: https://patch.msgid.link/20251114110636.143268-4-srini@kernel.org
Signed-off-by: Greg Kroah-Hartman

nvmem: rcar-efuse: add missing MODULE_DEVICE_TABLE

2025-10-22T06:02:38+00:00

The nvmem-rcar-efuse driver can be compiled as a module. Add missing
MODULE_DEVICE_TABLE so it can be matched by modalias and automatically
loaded by udev.

Cc: stable@vger.kernel.org
Fixes: 1530b923a514 ("nvmem: Add R-Car E-FUSE driver")
Signed-off-by: Cosmin Tanislav 
Reviewed-by: Geert Uytterhoeven 
Link: https://patch.msgid.link/20250919142856.2313927-1-cosmin-gabriel.tanislav.xa@renesas.com
Signed-off-by: Greg Kroah-Hartman

Merge tag 'char-misc-6.18-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2025-10-07T19:13:26+00:00

Pull char/misc fixes from Greg KH:
 "Here are some small nvmem and fastrpc fixes that missed the cut-off to
  get into 6.17-final, due to me being slow in getting them out, my
  fault, not the maintainers of these subsystems :(

  Anyway, better late than never.  Changes included in here are:

   - nvmem fix for automatic module loading

   - fastrpc driver fixes for reported issues

  All of these have been in linux-next for weeks (4?) with no reported
  issues"

* tag 'char-misc-6.18-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  misc: fastrpc: Skip reference for DMA handles
  misc: fastrpc: fix possible map leak in fastrpc_put_args
  misc: fastrpc: Fix fastrpc_map_lookup operation
  misc: fastrpc: Save actual DMA size in fastrpc_map structure
  nvmem: layouts: fix automatic module loading

nvmem: layouts: fix automatic module loading

2025-09-12T14:34:06+00:00

To support loading of a layout module automatically the MODALIAS
variable in the uevent is needed. Add it.

Fixes: fc29fd821d9a ("nvmem: core: Rework layouts to become regular devices")
Cc: stable@vger.kernel.org
Signed-off-by: Michael Walle 
Reviewed-by: Miquel Raynal 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20250912131347.303345-2-srini@kernel.org
Signed-off-by: Greg Kroah-Hartman

nvmem: an8855: Add support for Airoha AN8855 Switch EFUSE

2025-09-12T13:49:03+00:00

Add support for Airoha AN8855 Switch EFUSE. These EFUSE might be used
for calibration data for the internal switch PHYs.

Signed-off-by: Christian Marangi 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20250912131415.303407-6-srini@kernel.org
Signed-off-by: Greg Kroah-Hartman

nvmem: s32g-ocotp: Add driver for S32G OCOTP

2025-09-12T13:49:03+00:00

Provide access to the On Chip One-Time Programmable Controller (OCOTP)
pages on the NXP S32G platform.

Signed-off-by: Ciprian Costea 
Co-developed-by: Ghennadi Procopciuc 
Signed-off-by: Ghennadi Procopciuc 
Co-developed-by: Larisa Grigore 
Signed-off-by: Larisa Grigore 
Signed-off-by: Dan Carpenter 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20250912131415.303407-3-srini@kernel.org
Signed-off-by: Greg Kroah-Hartman