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Add a new driver for Bitland laptops that utilize the MIFS (MiInterface) WMI interface. The driver implements several features through the WMI interface: - Platform Profile: Supports "Quiet", "Balanced", "Performance", and "Full Speed" modes. The "Full Speed" mode is intelligently restricted based on the AC adapter type (requires DC power, not supported on USB-C charging) as required by the hardware. - Hwmon: Provides monitoring for CPU, GPU, and System fan speeds, as well as CPU temperature sensors. - Keyboard Backlight: Integrated with the LED class device for brightness control and provides sysfs attributes for keyboard modes (cyclic, fixed, etc.). - GPU Mode: Allows switching between Hybrid, Discrete, and UMA graphics modes via sysfs. - Hotkeys: Handles WMI events for system hotkeys (Calculator, Browser, App launch) using sparse keymaps and reports status changes for Airplane mode, Touchpad, and CapsLock. - Fan Boost: Provides a sysfs interface to force fans to maximum speed. The driver registers two WMI GUIDs: - B60BFB48-3E5B-49E4-A0E9-8CFFE1B3434B: Control methods - 46C93E13-EE9B-4262-8488-563BCA757FEF: Event notifications Reviewed-by: Armin Wolf <W_Armin@gmx.de> Signed-off-by: Mingyou Chen <qby140326@gmail.com> Link: https://patch.msgid.link/20260323132218.444383-1-qby140326@gmail.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>