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platform/x86: asus-wmi: Add quirk wmi_ignore_fan 

Some laptops have a fan device listed in their ACPI tables but do not
actually contain a fan.
Introduce a quirk that can be used to override the fan detection logic.

This was observed with a ASUS VivoBook E410MA running firmware
E410MAB.304.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20221221-asus-fan-v1-1-e07f3949725b@weissschuh.net
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Thomas Weißschuh 2022-12-21 17:59:49 +00:00 committed by Hans de Goede
parent db9494895b
commit c874b6de4c
2 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/platform/x86/asus-wmi.c
View File

@ -2243,7 +2243,9 @@ static int asus_wmi_fan_init(struct asus_wmi *asus)
asus->fan_type = FAN_TYPE_NONE;
asus->agfn_pwm = -1;
if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CPU_FAN_CTRL))
if (asus->driver->quirks->wmi_ignore_fan)
asus->fan_type = FAN_TYPE_NONE;
else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CPU_FAN_CTRL))
asus->fan_type = FAN_TYPE_SPEC83;
else if (asus_wmi_has_agfn_fan(asus))
asus->fan_type = FAN_TYPE_AGFN;

1
drivers/platform/x86/asus-wmi.h
View File

@ -38,6 +38,7 @@ struct quirk_entry {
bool store_backlight_power;
bool wmi_backlight_set_devstate;
bool wmi_force_als_set;
bool wmi_ignore_fan;
enum asus_wmi_tablet_switch_mode tablet_switch_mode;
int wapf;
/*