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The Linux kernel configuration item CONFIG_INTEL_INT0002_VGPIO
:
CONFIG_GPIOLIB && CONFIG_ACPI
intel_int0002_vgpio
Some peripherals on Bay Trail and Cherry Trail platforms signal a Power Management Event (PME) to the Power Management Controller (PMC) to wakeup the system. When this happens software needs to explicitly clear the PME bus 0 status bit in the GPE0a_STS register to avoid an IRQ storm on IRQ 9.
This is modelled in ACPI through the INT0002 ACPI device, which is called a "Virtual GPIO controller" in ACPI because it defines the event handler to call when the PME triggers through _AEI and _L02 methods as would be done for a real GPIO interrupt in ACPI.
To compile this driver as a module, choose M here: the module will be called intel_int0002_vgpio.
Raw data from LKDDb:
lkddb acpi "INT0002" : CONFIG_INTEL_INT0002_VGPIO CONFIG_X86 : drivers/platform/x86/intel_int0002_vgpio.c # in 4.13–4.20, 5.0–5.11, 5.12-rc+HEAD
lkddb module intel_int0002_vgpio CONFIG_INTEL_INT0002_VGPIO : drivers/platform/x86/Kconfig : "Intel ACPI INT0002 Virtual GPIO driver" # in 4.13–4.20, 5.0–5.11, 5.12-rc+HEAD
lkddb platform "INT0002 Virtual GPIO" : CONFIG_INTEL_INT0002_VGPIO CONFIG_X86 : drivers/platform/x86/intel_int0002_vgpio.c # in 4.13–4.20, 5.0–5.11, 5.12-rc+HEAD
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Automatically generated (in year 2021). See also LKDDb sources on GitLab