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Vadim Pasternak 195e41ac71 hwmon: mlxreg-fan: Prevent fans from getting stuck at 0 RPM
[ Upstream commit 1180c79fbf ]

The fans controlled by the driver can get stuck at 0 RPM if they are
configured below a 20% duty cycle. The driver tries to avoid this by
enforcing a minimum duty cycle of 20%, but this is done after the fans
are registered with the thermal subsystem. This is too late as the
thermal subsystem can set their current state before the driver is able
to enforce the minimum duty cycle.

Fix by setting the minimum duty cycle before registering the fans with
the thermal subsystem.

Fixes: d7efb2ebc7 ("hwmon: (mlxreg-fan) Extend driver to support multiply cooling devices")
Reported-by: Nikolay Aleksandrov <razor@blackwall.org>
Tested-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20250730201715.1111133-1-vadimp@nvidia.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-09-09 18:54:22 +02:00
arch x86/mm/64: define ARCH_PAGE_TABLE_SYNC_MASK and arch_sync_kernel_mappings() 2025-09-09 18:54:17 +02:00
block block: reject invalid operation in submit_bio_noacct 2025-08-28 16:26:10 +02:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2025-04-25 10:44:04 +02:00
crypto crypto: xts - Only add ecb if it is not already there 2025-06-27 11:07:06 +01:00
Documentation bonding: Add independent control state machine 2025-08-28 16:26:18 +02:00
drivers hwmon: mlxreg-fan: Prevent fans from getting stuck at 0 RPM 2025-09-09 18:54:22 +02:00
fs fs: relax assertions on failure to encode file handles 2025-09-09 18:54:21 +02:00
include PCI/MSI: Add an option to write MSIX ENTRY_DATA before any reads 2025-09-09 18:54:18 +02:00
init sched/isolation: Make CONFIG_CPU_ISOLATION depend on CONFIG_SMP 2025-05-02 07:47:04 +02:00
io_uring io_uring/poll: fix POLLERR handling 2025-07-24 08:51:48 +02:00
ipc ipc: fix to protect IPCS lookups using RCU 2025-06-27 11:07:30 +01:00
kernel cpufreq/sched: Explicitly synchronize limits_changed flag handling 2025-09-09 18:54:18 +02:00
lib maple_tree: fix mt_destroy_walk() on root leaf node 2025-07-17 18:32:09 +02:00
LICENSES
mm mm/slub: avoid accessing metadata when pointer is invalid in object_err() 2025-09-09 18:54:18 +02:00
net net: dsa: microchip: linearize skb for tail-tagging switches 2025-09-09 18:54:20 +02:00
rust rust: module: place cleanup_module() in .exit.text section 2025-07-06 10:57:54 +02:00
samples samples: mei: Fix building on musl libc 2025-08-15 12:04:55 +02:00
scripts kconfig: lxdialog: fix 'space' to (de)select options 2025-08-28 16:26:02 +02:00
security apparmor: use the condition in AA_BUG_FMT even with debug disabled 2025-08-28 16:26:01 +02:00
sound ALSA: hda/realtek: Fix headset mic for TongFang X6[AF]R5xxY 2025-09-09 18:54:21 +02:00
tools selftest: net: Fix weird setsockopt() in bind_bhash.c. 2025-09-09 18:54:16 +02:00
usr kbuild: hdrcheck: fix cross build with clang 2025-06-27 11:07:25 +01:00
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Makefile Linux 6.1.150 2025-09-04 15:26:31 +02:00
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