Commit 536e0019 authored Jun 05, 2018 by Helge Eichelberg Committed by Guenter Roeck Jun 16, 2018

hwmon: (dell-smm) Disable fan support for Dell XPS13 9333

Calling fan related SMM functions implemented by Dell BIOS firmware on Dell
XPS13 9333 freeze kernel for about 500ms. Until Dell fixes it we need to
disable fan support for Dell XPS13 9333.

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

Link: https://bugzilla.kernel.org/show_bug.cgi?id=195751


Signed-off-by: Helge Eichelberg <kernelorg@elchenberg.name>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

parent ce397d21

drivers/hwmon/dell-smm-hwmon.c

+7 −0

Original line number	Original line	Diff line number	Diff line
	@@ -1074,6 +1074,13 @@ static struct dmi_system_id i8k_blacklist_fan_support_dmi_table[] __initdata = {
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Vostro 3360"),		DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Vostro 3360"),
	},		},
	},		},
			{
			.ident = "Dell XPS13 9333",
			.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "XPS13 9333"),
			},
			},
	{ }		{ }
	};		};