linux-stable.git/drivers/reset, branch v5.15.208

reset: brcmstb: Enable reset drivers for ARCH_BCM2835

2025-08-28T14:24:18+00:00

[ Upstream commit 1d99f92f71b6b4b2eee776562c991428490f71ef ]

The BRCMSTB and BRCMSTB_RESCAL reset drivers are also
used in the BCM2712, AKA the RPi5. The RPi platforms
have typically used the ARCH_BCM2835, and the PCIe
support for this SoC can use this config which depends
on these drivers so enable building them when just that
arch option is enabled to ensure the platform works as
expected.

Signed-off-by: Peter Robinson 
Acked-by: Florian Fainelli 
Link: https://lore.kernel.org/r/20250630175301.846082-1-pbrobinson@gmail.com
Signed-off-by: Philipp Zabel 
Signed-off-by: Sasha Levin

reset: k210: fix OF node leak in probe() error path

2024-10-17T13:10:49+00:00

[ Upstream commit b14e40f5dc7cd0dd7e958010e6ca9ad32ff2ddad ]

Driver is leaking OF node reference on memory allocation failure.
Acquire the OF node reference after memory allocation to fix this and
keep it simple.

Fixes: 5a2308da9f60 ("riscv: Add Canaan Kendryte K210 reset controller")
Signed-off-by: Krzysztof Kozlowski 
Reviewed-by: Damien Le Moal 
Link: https://lore.kernel.org/r/20240825-reset-cleanup-scoped-v1-2-03f6d834f8c0@linaro.org
Signed-off-by: Philipp Zabel 
Signed-off-by: Sasha Levin

reset: berlin: fix OF node leak in probe() error path

2024-10-17T13:10:49+00:00

[ Upstream commit 5f58a88cc91075be38cec69b7cb70aaa4ba69e8b ]

Driver is leaking OF node reference on memory allocation failure.
Acquire the OF node reference after memory allocation to fix this and
keep it simple.

Fixes: aed6f3cadc86 ("reset: berlin: convert to a platform driver")
Signed-off-by: Krzysztof Kozlowski 
Reviewed-by: Damien Le Moal 
Link: https://lore.kernel.org/r/20240825-reset-cleanup-scoped-v1-1-03f6d834f8c0@linaro.org
Signed-off-by: Philipp Zabel 
Signed-off-by: Sasha Levin

reset: hisilicon: hi6220: fix Wvoid-pointer-to-enum-cast warning

2024-01-25T22:52:30+00:00

[ Upstream commit b5ec294472794ed9ecba0cb4b8208372842e7e0d ]

'type' is an enum, thus cast of pointer on 64-bit compile test with W=1
causes:

  hi6220_reset.c:166:9: error: cast to smaller integer type 'enum hi6220_reset_ctrl_type' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast]

Signed-off-by: Krzysztof Kozlowski 
Link: https://lore.kernel.org/r/20230810091300.70197-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Philipp Zabel 
Signed-off-by: Sasha Levin

reset: Fix crash when freeing non-existent optional resets

2024-01-05T14:13:27+00:00

[ Upstream commit 4a6756f56bcf8e64c87144a626ce53aea4899c0e ]

When obtaining one or more optional resets, non-existent resets are
stored as NULL pointers, and all related error and cleanup paths need to
take this into account.

Currently only reset_control_put() and reset_control_bulk_put()
get this right.  All of __reset_control_bulk_get(),
of_reset_control_array_get(), and reset_control_array_put() lack the
proper checking, causing NULL pointer dereferences on failure or
release.

Fix this by moving the existing check from reset_control_bulk_put() to
__reset_control_put_internal(), so it applies to all callers.
The double check in reset_control_put() doesn't hurt.

Fixes: 17c82e206d2a3cd8 ("reset: Add APIs to manage array of resets")
Fixes: 48d71395896d54ee ("reset: Add reset_control_bulk API")
Signed-off-by: Geert Uytterhoeven 
Link: https://lore.kernel.org/r/2440edae7ca8534628cdbaf559ded288f2998178.1701276806.git.geert+renesas@glider.be
Signed-off-by: Philipp Zabel 
Signed-off-by: Sasha Levin

reset: uniphier-glue: Fix possible null-ptr-deref

2023-02-01T07:27:04+00:00

[ Upstream commit 3a2390c6777e3f6662980c6cfc25cafe9e4fef98 ]

It will cause null-ptr-deref when resource_size(res) invoked,
if platform_get_resource() returns NULL.

Fixes: 499fef09a323 ("reset: uniphier: add USB3 core reset control")
Signed-off-by: Hui Tang 
Reviewed-by: Kunihiko Hayashi 
Link: https://lore.kernel.org/r/20221114004958.258513-1-tanghui20@huawei.com
Signed-off-by: Philipp Zabel 
Signed-off-by: Sasha Levin

reset: uniphier-glue: Use reset_control_bulk API

2023-02-01T07:27:04+00:00

[ Upstream commit 176cae38719196a43cd8ae08377413a3884a9f15 ]

This driver already uses the clk_bulk API. Simplify the driver by using
the reset_control_bulk API as well.

Signed-off-by: Philipp Zabel 
Reviewed-by: Kunihiko Hayashi 
Link: https://lore.kernel.org/r/20211215093829.3209416-1-p.zabel@pengutronix.de
Signed-off-by: Philipp Zabel 
Stable-dep-of: 3a2390c6777e ("reset: uniphier-glue: Fix possible null-ptr-deref")
Signed-off-by: Sasha Levin

reset: imx7: Fix the iMX8MP PCIe PHY PERST support

2022-10-05T08:39:40+00:00

[ Upstream commit 051d9eb403887bb11852b7a4f744728a6a4b1b58 ]

On i.MX7/iMX8MM/iMX8MQ, the initialized default value of PERST bit(BIT3)
of SRC_PCIEPHY_RCR is 1b'1.
But i.MX8MP has one inversed default value 1b'0 of PERST bit.

And the PERST bit should be kept 1b'1 after power and clocks are stable.
So fix the i.MX8MP PCIe PHY PERST support here.

Fixes: e08672c03981 ("reset: imx7: Add support for i.MX8MP SoC")
Signed-off-by: Richard Zhu 
Reviewed-by: Philipp Zabel 
Tested-by: Marek Vasut 
Tested-by: Richard Leitner 
Tested-by: Alexander Stein 
Signed-off-by: Philipp Zabel 
Link: https://lore.kernel.org/r/1661845564-11373-5-git-send-email-hongxing.zhu@nxp.com
Signed-off-by: Sasha Levin

reset: tegra-bpmp: Restore Handle errors in BPMP response

2022-04-27T12:38:55+00:00

[ Upstream commit d1da1052ffad63aa5181b69f20a6952e31f339c2 ]

This reverts following commit 69125b4b9440 ("reset: tegra-bpmp: Revert
Handle errors in BPMP response").

The Tegra194 HDA reset failure is fixed by commit d278dc9151a0 ("ALSA:
hda/tegra: Fix Tegra194 HDA reset failure"). The temporary revert of
original commit c045ceb5a145 ("reset: tegra-bpmp: Handle errors in BPMP
response") can be removed now.

Signed-off-by: Sameer Pujar 
Tested-by: Jon Hunter 
Reviewed-by: Jon Hunter 
Acked-by: Thierry Reding 
Signed-off-by: Philipp Zabel 
Link: https://lore.kernel.org/r/1641995806-15245-1-git-send-email-spujar@nvidia.com
Signed-off-by: Sasha Levin

reset: renesas: Check return value of reset_control_deassert()

2022-04-27T12:38:55+00:00

[ Upstream commit da18980a855edf44270f05455e0ec3f2472f64cc ]

Deasserting the reset is vital, therefore bail out in case of error.

Suggested-by: Biju Das 
Signed-off-by: Heiner Kallweit 
Reviewed-by: Biju Das 
Link: https://lore.kernel.org/r/b2131908-0110-006b-862f-080517f3e2d8@gmail.com
Signed-off-by: Philipp Zabel 
Signed-off-by: Sasha Levin