linux.git/drivers/power/reset, branch v6.6.131

power: reset: nvmem-reboot-mode: respect cell size for nvmem_cell_write

2026-03-04T12:19:58+00:00

[ Upstream commit 36b05629226413836cfbb3fbe6689cd188bca156 ]

Some platforms expose reboot mode cells that are smaller than an
unsigned int, in which cases lead to write failures. Read the cell
first to determine actual size and only write the number of bytes the
cell can hold.

Fixes: 7a78a7f7695b ("power: reset: nvmem-reboot-mode: use NVMEM as reboot mode write interface")
Signed-off-by: Alexander Koskovich 
Link: https://patch.msgid.link/20251214191529.2470580-1-akoskovich@pm.me
Signed-off-by: Sebastian Reichel 
Signed-off-by: Sasha Levin

power: reset: at91-reset: Optimize at91_reset()

2025-06-19T13:28:05+00:00

[ Upstream commit 62d48983f215bf1dd48665913318101fa3414dcf ]

This patch adds a small optimization to the low-level at91_reset()
function, which includes:
- Removes the extra branch, since the following store operations
  already have proper condition checks.
- Removes the definition of the clobber register r4, since it is
  no longer used in the code.

Fixes: fcd0532fac2a ("power: reset: at91-reset: make at91sam9g45_restart() generic")
Signed-off-by: Alexander Shiyan 
Reviewed-by: Alexandre Belloni 
Link: https://lore.kernel.org/r/20250307053809.20245-1-eagle.alexander923@gmail.com
Signed-off-by: Sebastian Reichel 
Signed-off-by: Sasha Levin

power: reset: brcmstb: Do not go into infinite loop if reset fails

2024-10-10T09:57:31+00:00

[ Upstream commit cf8c39b00e982fa506b16f9d76657838c09150cb ]

There may be other backup reset methods available, do not halt
here so that other reset methods can be tried.

Signed-off-by: Andrew Davis 
Reviewed-by: Dhruva Gole 
Acked-by: Florian Fainelli 
Link: https://lore.kernel.org/r/20240610142836.168603-5-afd@ti.com
Signed-off-by: Sebastian Reichel 
Signed-off-by: Sasha Levin

power: vexpress: fix -Wvoid-pointer-to-enum-cast warning

2023-09-12T18:17:31+00:00

When building with clang 18 I see the following warning:
|       drivers/power/reset/vexpress-poweroff.c:124:10: warning: cast to smaller integer type 'enum vexpress_reset_func' from 'const void *' [-Wvoid-pointer-to-enum-cast]
|         124 |         switch ((enum vexpress_reset_func)match->data) {

This is due to the fact that `match->data` is a void* while `enum vexpress_reset_func`
has the size of an int. This leads to truncation and possible data loss.

Link: https://github.com/ClangBuiltLinux/linux/issues/1910
Reported-by: Nathan Chancellor 
Signed-off-by: Justin Stitt 
Acked-by: Sudeep Holla 
Signed-off-by: Sebastian Reichel

power: reset: use capital "OR" for multiple licenses in SPDX

2023-09-12T18:11:23+00:00

Documentation/process/license-rules.rst and checkpatch expect the SPDX
identifier syntax for multiple licenses to use capital "OR".  Correct it
to keep consistent format and avoid copy-paste issues.

Signed-off-by: Krzysztof Kozlowski 
Link: https://lore.kernel.org/r/20230823085601.116562-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Sebastian Reichel

pwr-mlxbf: extend Kconfig to include gpio-mlxbf3 dependency

2023-09-12T18:09:35+00:00

The BlueField power handling driver (pwr-mlxbf.c) provides
functionality for both BlueField-2 and BlueField-3 based
platforms.  This driver also depends on the SoC-specific
BlueField GPIO driver, whether gpio-mlxbf2 or gpio-mlxbf3.
This patch extends the Kconfig definition to include the
dependency on the gpio-mlxbf3 driver, if applicable.

Signed-off-by: David Thompson 
Reviewed-by: Asmaa Mnebhi 
Link: https://lore.kernel.org/r/20230823133743.31275-1-davthompson@nvidia.com
Signed-off-by: Sebastian Reichel

power: reset: oxnas-restart: remove obsolete restart driver

2023-07-19T22:29:18+00:00

Due to lack of maintenance and stall of development for a few years now,
and since no new features will ever be added upstream, remove support
for OX810 and OX820 restart feature.

Acked-by: Linus Walleij 
Acked-by: Arnd Bergmann 
Acked-by: Daniel Golle 
Acked-by: Andy Shevchenko 
Signed-off-by: Neil Armstrong 
Signed-off-by: Sebastian Reichel

power: reset: ocelot: Convert to devm_platform_ioremap_resource()

2023-07-19T21:31:49+00:00

Use devm_platform_ioremap_resource() to simplify code.

Signed-off-by: Yangtao Li 
Signed-off-by: Sebastian Reichel

power: reset: msm: Convert to devm_platform_ioremap_resource()

2023-07-19T21:31:49+00:00

Use devm_platform_ioremap_resource() to simplify code.

Signed-off-by: Yangtao Li 
Signed-off-by: Sebastian Reichel

power: reset: gemini-poweroff: Convert to devm_platform_ioremap_resource()

2023-07-19T21:28:59+00:00

Use devm_platform_ioremap_resource() to simplify code.

Signed-off-by: Yangtao Li 
Signed-off-by: Sebastian Reichel