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hwmon: (dell-smm) Disable fan support for Dell Vostro 3360

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Calling fan related SMM functions implemented by Dell BIOS firmware on Dell
Vostro 3360 freeze kernel for about 500ms.

Unfortunately, it is unlikely for Dell to fix this since the machine
is pretty old, so this commit just disables fan support to make the
system usable again.

Via "force" module param fan support can be enabled.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=195751
Link: http://lkml.iu.edu/hypermail/linux/kernel/1711.2/06083.html
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Oleksandr Natalenko 2018-01-27 17:23:29 +01:00 committed by Guenter Roeck
parent f480ea90b9
commit 6fbc4232a5
1 changed files with 7 additions and 0 deletions
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7
drivers/hwmon/dell-smm-hwmon.c
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@ -1067,6 +1067,13 @@ static struct dmi_system_id i8k_blacklist_fan_support_dmi_table[] __initdata = {
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Inspiron 7720"),
},
},
{
.ident = "Dell Vostro 3360",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Vostro 3360"),
},
},
{ }
};