linux-toradex.git/drivers/nvmem, branch v5.15-rc3

nvmem: NVMEM_NINTENDO_OTP should depend on WII

2021-09-21T15:38:37+00:00

The Nintendo Wii and Wii U OTP is only present on Nintendo Wii and Wii U
consoles.  Hence add a dependency on WII, to prevent asking the user
about this driver when configuring a kernel without Nintendo Wii and Wii
U console support.

Fixes: 3683b761fe3a10ad ("nvmem: nintendo-otp: Add new driver for the Wii and Wii U OTP")
Reviewed-by: Emmanuel Gil Peyrot 
Signed-off-by: Geert Uytterhoeven 
Link: https://lore.kernel.org/r/01318920709dddc4d85fe895e2083ca0eee234d8.1631611652.git.geert+renesas@glider.be
Signed-off-by: Greg Kroah-Hartman

nvmem: nintendo-otp: Add new driver for the Wii and Wii U OTP

2021-08-13T08:27:20+00:00

This OTP is read-only and contains various keys used by the console to
decrypt, encrypt or verify various pieces of storage.

Its size depends on the console, it is 128 bytes on the Wii and
1024 bytes on the Wii U (split into eight 128 bytes banks).

It can be used directly by writing into one register and reading from
the other one, without any additional synchronisation.

This driver was written based on reversed documentation, see:
https://wiiubrew.org/wiki/Hardware/OTP

Tested-by: Jonathan Neuschäfer   # on Wii
Tested-by: Emmanuel Gil Peyrot   # on Wii U
Signed-off-by: Emmanuel Gil Peyrot 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20210810153036.1494-3-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman

nvmem: core: fix error handling while validating keepout regions

2021-08-06T13:18:40+00:00

Current error path on failure of validating keepout regions is calling
put_device, eventhough the device is not even registered at that point.

Fix this by adding proper error handling of freeing ida and nvmem.

Fixes: fd3bb8f54a88 ("nvmem: core: Add support for keepout regions")
Cc: 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20210806085947.22682-5-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman

nvmem: qfprom: sc7280: Handle the additional power-domains vote

2021-08-06T13:18:40+00:00

On sc7280, to reliably blow fuses, we need an additional vote
on max performance state of 'MX' power-domain.
Add support for power-domain performance state voting in the
driver.

Reviewed-by: Douglas Anderson 
Signed-off-by: Rajendra Nayak 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20210806085947.22682-4-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman

nvmem: qfprom: Fix up qfprom_disable_fuse_blowing() ordering

2021-08-06T13:18:40+00:00

qfprom_disable_fuse_blowing() disables a bunch of resources,
and then does a few register writes in the 'conf' address
space.
It works perhaps because the resources are needed only for the
'raw' register space writes, and that the 'conf' space allows
read/writes regardless.
However that makes the code look confusing, so just move the
register writes before turning off the resources in the
function.

Reviewed-by: Douglas Anderson 
Signed-off-by: Rajendra Nayak 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20210806085947.22682-3-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman

Merge tag 'char-misc-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2021-07-05T20:42:16+00:00

Pull char / misc driver updates from Greg KH:
 "Here is the big set of char / misc and other driver subsystem updates
  for 5.14-rc1. Included in here are:

   - habanalabs driver updates

   - fsl-mc driver updates

   - comedi driver updates

   - fpga driver updates

   - extcon driver updates

   - interconnect driver updates

   - mei driver updates

   - nvmem driver updates

   - phy driver updates

   - pnp driver updates

   - soundwire driver updates

   - lots of other tiny driver updates for char and misc drivers

  This is looking more and more like the "various driver subsystems
  mushed together" tree...

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (292 commits)
  mcb: Use DEFINE_RES_MEM() helper macro and fix the end address
  PNP: moved EXPORT_SYMBOL so that it immediately followed its function/variable
  bus: mhi: pci-generic: Add missing 'pci_disable_pcie_error_reporting()' calls
  bus: mhi: Wait for M2 state during system resume
  bus: mhi: core: Fix power down latency
  intel_th: Wait until port is in reset before programming it
  intel_th: msu: Make contiguous buffers uncached
  intel_th: Remove an unused exit point from intel_th_remove()
  stm class: Spelling fix
  nitro_enclaves: Set Bus Master for the NE PCI device
  misc: ibmasm: Modify matricies to matrices
  misc: vmw_vmci: return the correct errno code
  siox: Simplify error handling via dev_err_probe()
  fpga: machxo2-spi: Address warning about unused variable
  lkdtm/heap: Add init_on_alloc tests
  selftests/lkdtm: Enable various testable CONFIGs
  lkdtm: Add CONFIG hints in errors where possible
  lkdtm: Enable DOUBLE_FAULT on all architectures
  lkdtm/heap: Add vmalloc linear overflow test
  lkdtm/bugs: XFAIL UNALIGNED_LOAD_STORE_WRITE
  ...

nvmem: core: add a missing of_node_put

2021-06-11T10:34:04+00:00

'for_each_child_of_node' performs an of_node_get on each iteration, so a
return from the middle of the loop requires an of_node_put.

Fixes: e888d445ac33 ("nvmem: resolve cells from DT at registration time")
Cc: 
Signed-off-by: Christophe JAILLET 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20210611102321.11509-1-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman

nvmem: prepare basics for FRAM support

2021-06-11T10:23:10+00:00

Added enum and string for FRAM (ferroelectric RAM) to expose it as file
named "fram".
Added documentation of sysfs file.

Signed-off-by: Jiri Prchal 
Link: https://lore.kernel.org/r/20210611094601.95131-2-jiri.prchal@aksignal.cz
Signed-off-by: Greg Kroah-Hartman

nvmem: qfprom: Improve the comment about regulator setting

2021-06-11T08:57:58+00:00

In review feedback Joe Perches found the existing comment
confusing. Let's use something based on the wording proposed by Joe.

Suggested-by: Joe Perches 
Signed-off-by: Douglas Anderson 
Reviewed-by: Stephen Boyd 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20210611083348.20170-10-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman

nvmem: core: constify nvmem_cell_read_variable_common() return value

2021-06-11T08:57:56+00:00

The caller doesn't modify the memory pointed to by the pointer so it
can be const.

Suggested-by: Stephen Boyd 
Signed-off-by: Douglas Anderson 
Reviewed-by: Stephen Boyd 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20210611083348.20170-9-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman