hwmon: (dell-smm) Add support for WMI SMM interface

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Some Dell machines like the Dell Optiplex 7000 do not support
the legacy SMM interface, but instead expect all SMM calls
to be issued over a special WMI interface.
Add support for this interface so users can control the fans
on those machines.

Tested-by: <serverror@serverror.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20231123004820.50635-8-W_Armin@gmx.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

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This commit is contained in:

Armin Wolf 2023-11-23 01:48:18 +01:00 • committed by Guenter Roeck

parent 20bdeebc88

commit b7a4706f66

3 changed files with 182 additions and 19 deletions

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1

drivers/hwmon/Kconfig

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199

drivers/hwmon/dell-smm-hwmon.c

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1

drivers/platform/x86/wmi.c

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