Files
linux/drivers
Vadim Pasternak e6d9a876d9 hwmon: (mlxreg-fan) Return zero speed for broken fan
[ Upstream commit a1ffd3c462 ]

Currently for broken fan driver returns value calculated based on error
code (0xFF) in related fan speed register.
Thus, for such fan user gets fan{n}_fault to 1 and fan{n}_input with
misleading value.

Add check for fan fault prior return speed value and return zero if
fault is detected.

Fixes: 65afb4c8e7 ("hwmon: (mlxreg-fan) Add support for Mellanox FAN driver")
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20230212145730.24247-1-vadimp@nvidia.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-11 16:43:47 +01:00
..
2023-03-03 11:41:48 +01:00
2022-05-09 09:03:20 +02:00
2023-01-18 11:41:53 +01:00
2022-04-15 14:18:32 +02:00
2022-08-25 11:18:33 +02:00