Re: [PATCH 0/2] ACPI: Translate Linux IRQ number directly from GpioInt

[sathyanarayanan kuppuswamy]

On 04/29/2015 02:26 AM, Mika Westerberg wrote:
> On Tue, Apr 28, 2015 at 10:36:48AM -0700, sathyanarayanan kuppuswamy wrote:
> > > This requires that the boot firmware (BIOS/coreboot) configures these pins
> > > correctly (input, etc) before handing over to OS. I've tested this on Intel
> > > Baytrail, Braswell and Skylake based machines where this is true.
> > Why not configure the GPIO pin as input in the API itself ?
> IIRC Octavian tried to do just that but it turned out that some of the
> irqchip functions are called with spinlock held, which means you can't
> call all gpiod_* functions there (as they might sleep).
Got it. Thanks.
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--
Sathyanarayanan Kuppuswamy
Android kernel developer

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