6.17-stable review patch. If anyone has any objections, please let me know.
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From: Armin Wolf W_Armin@gmx.de
[ Upstream commit ddb61e737f04e3c6c8299c1e00bf17a42a7f05cf ]
It turns out the second fan on the Dell Precision 490 does not really support I8K_FAN_TURBO. Setting the fan state to 3 enables automatic fan control, just like on the other two fans. The reason why this was misinterpreted as turbo mode was that the second fan normally spins faster in automatic mode than in the previous fan states. Yet when in state 3, the fan speed reacts to heat exposure, exposing the automatic mode setting.
Link: https://github.com/lm-sensors/lm-sensors/pull/383 Signed-off-by: Armin Wolf W_Armin@gmx.de Link: https://lore.kernel.org/r/20250917181036.10972-2-W_Armin@gmx.de Signed-off-by: Guenter Roeck linux@roeck-us.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/hwmon/dell-smm-hwmon.c | 14 -------------- 1 file changed, 14 deletions(-)
diff --git a/drivers/hwmon/dell-smm-hwmon.c b/drivers/hwmon/dell-smm-hwmon.c index 1e2c8e2840015..3f61b2d7935e4 100644 --- a/drivers/hwmon/dell-smm-hwmon.c +++ b/drivers/hwmon/dell-smm-hwmon.c @@ -1331,7 +1331,6 @@ struct i8k_config_data {
enum i8k_configs { DELL_LATITUDE_D520, - DELL_PRECISION_490, DELL_STUDIO, DELL_XPS, }; @@ -1341,10 +1340,6 @@ static const struct i8k_config_data i8k_config_data[] __initconst = { .fan_mult = 1, .fan_max = I8K_FAN_TURBO, }, - [DELL_PRECISION_490] = { - .fan_mult = 1, - .fan_max = I8K_FAN_TURBO, - }, [DELL_STUDIO] = { .fan_mult = 1, .fan_max = I8K_FAN_HIGH, @@ -1364,15 +1359,6 @@ static const struct dmi_system_id i8k_config_dmi_table[] __initconst = { }, .driver_data = (void *)&i8k_config_data[DELL_LATITUDE_D520], }, - { - .ident = "Dell Precision 490", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, - "Precision WorkStation 490"), - }, - .driver_data = (void *)&i8k_config_data[DELL_PRECISION_490], - }, { .ident = "Dell Studio", .matches = {