Re: [PATCH v6] platform/x86: Add driver for ACPI INT0002 Virtual GPIO device

[Darren Hart <dvhart@xxxxxxxxxxxxx>]

On Wed, Jun 07, 2017 at 05:53:38PM +0300, Andy Shevchenko wrote:
> On Fri, Jun 2, 2017 at 6:15 PM, Hans de Goede <hdegoede@xxxxxxxxxx> wrote:
> > 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.
> >
> > This commit adds a driver which registers the Virtual GPIOs expected
> > by the DSDT on these devices, letting gpiolib-acpi claim the
> > virtual GPIO and install a GPIO-interrupt handler which call the _L02
> > handler as it would for a real GPIO controller.
> >
> 
> Pushed to testing w/o Linus' tag (there is no one yet)

Will you be taking this through fixes Andy? For a 4.12-rc* target per Hans'
response to the cover letter?

-- 
Darren Hart
VMware Open Source Technology Center
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