Intel ACPI INT0002 Virtual GPIO driver

modulename: intel_int0002_vgpio.ko
configname: CONFIG_INTEL_INT0002_VGPIO

Linux Kernel Configuration
└─> Device Drivers
└─> X86 Platform Specific Device Drivers
└─> GPIO Support
└─> Intel ACPI INT0002 Virtual GPIO driver

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.

source code: