linux-toradex.git/drivers/soc/ux500, branch master

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using

    git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:

Single allocations:	kmalloc(sizeof(TYPE), ...)
are replaced with:	kmalloc_obj(TYPE, ...)

Array allocations:	kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with:	kmalloc_objs(TYPE, COUNT, ...)

Flex array allocations:	kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with:	kmalloc_flex(*PTR, FAM, COUNT, ...)

(where TYPE may also be *VAR)

The resulting allocations no longer return "void *", instead returning
"TYPE *".

Signed-off-by: Kees Cook

ARM: ux500: do not directly dereference __iomem

2022-11-08T20:13:56+00:00

Sparse reports that calling add_device_randomness() on `uid` is a
violation of address spaces. And indeed the next usage uses readl()
properly, but that was left out when passing it toadd_device_
randomness(). So instead copy the whole thing to the stack first.

Fixes: 4040d10a3d44 ("ARM: ux500: add DB serial number to entropy pool")
Cc: Linus Walleij 
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/202210230819.loF90KDh-lkp@intel.com/
Reported-by: kernel test robot 
Signed-off-by: Jason A. Donenfeld 
Link: https://lore.kernel.org/r/20221108123755.207438-1-Jason@zx2c4.com
Signed-off-by: Linus Walleij

soc: ux500: Use custom soc attribute group instead of device_create_file

2020-07-06T08:48:06+00:00

Commit c31e73121f4c ("base: soc: Handle custom soc information sysfs
entries") introduced custom soc attribute group in soc_device_attribute
structure but there are no users treewide. While trying to understand
the motivation and tried to use it, it was found lot of existing custom
attributes can moved to use it instead of device_create_file.

Though most of these never remove/cleanup the custom attribute as they
never call soc_device_unregister, using these custom attribute group
eliminate the need for any cleanup as the driver infrastructure will
take care of that.

Let us remove device_create_file and start using the custom attribute
group in soc_device_attribute.

Link: https://lore.kernel.org/r/20200523170859.50003-7-sudeep.holla@arm.com
Cc: Linus Walleij 
Reviewed-by: Greg Kroah-Hartman 
Reviewed-by: Linus Walleij 
Signed-off-by: Sudeep Holla

soc: ux500: Switch to use DEVICE_ATTR_RO()

2020-07-06T08:48:06+00:00

Move device attributes to DEVICE_ATTR_RO() as that would make things
a lot more "obvious" what is happening over the existing __ATTR usage.

Link: https://lore.kernel.org/r/20200523170859.50003-6-sudeep.holla@arm.com
Cc: Linus Walleij 
Reviewed-by: Greg Kroah-Hartman 
Reviewed-by: Linus Walleij 
Signed-off-by: Sudeep Holla

ARM: ux500: add missing of_node_put()

2019-07-23T07:49:32+00:00

 of_find_compatible_node() returns a pointer with refcount incremented
so both in the error path as well as after usage in soc_info_populate()
respectively actually b8500_read_soc_id() an explicit of_node_put is
needed to release backupram.

Signed-off-by: Nicholas Mc Guire 
Fixes: commit 18a992787896 ("ARM: ux500: move soc_id driver to drivers/soc")
Acked-by: Ulf Hansson 
Signed-off-by: Linus Walleij

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194

2019-05-30T18:29:22+00:00

Based on 1 normalized pattern(s):

  license terms gnu general public license gpl version 2

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 161 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Allison Randal 
Reviewed-by: Alexios Zavras 
Reviewed-by: Steve Winslow 
Reviewed-by: Richard Fontana 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190528170027.447718015@linutronix.de
Signed-off-by: Greg Kroah-Hartman

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46+00:00

Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner 
Signed-off-by: Greg Kroah-Hartman

ARM: ux500: move soc_id driver to drivers/soc

2016-07-12T09:24:09+00:00

As the ux500 id code is basically a standalone driver, we can move it
out of the arch code into drivers/soc/ux500.

This is a user-visible change, as it moves all the devices in sysfs
from /sys/devices/soc0/ to /sys/devices/ and leaves the soc0 node as a
separate device.

Originally the idea was to put all on-chip devices under the soc node,
and ux500 was the first platform to have this device, but later platforms
almost all didn't follow that pattern, so this makes the platform do
the same thing as everyone else.

Since the platform is really obsolete now, I am optimistic that nothing
will break after moving the devices around.

As the SoC driver no longer has access to the private header files,
I'm changing the code to instead look up the address of the backupram
from devicetree, which is a good idea anyway.

Finally, having a separate Kconfig symbol means the driver is now
optional and could even be a loadable module rather than always being
built-in if we allowed that for soc_device.

Signed-off-by: Arnd Bergmann 
[Fixup mising Makefile, fixup BB_UID_BASE to fc0]
Signed-off-by: Linus Walleij