Patch merged into coreboot/master: skylake: Add SD card device to configure card detect GPIO

the following patch was just integrated into master:
commit b25a45ca46478bb5b0989f7e3f3aa5bdd8b36ef2
Author: Duncan Laurie 
Date:   Tue May 10 15:56:16 2016 -0700

skylake: Add SD card device to configure card detect GPIO

Add a PCI driver for the skylake SD card device and have it generate
    an entry in the SSDT for the card detect GPIO if it is provided by the
    mainboard in devicetree.

This sets up a card detect GPIO configuration that will trigger an
    interrupt on both edges with a 100ms debounce timeout and can wake the
    SD controller from D3 state.

The GpioInt() entry is bound to the "cd-gpio" device property which will
    be consumed by the kernel driver.

The resulting ACPI output in the SSDT will be combined with the SDXC
    device declaration in the DSDT.

Example:

Scope (_SB.PCI0.SDXC)
    {
      Name (_CRS, ResourceTemplate () {
        GpioInt (Edge, ActiveBoth, SharedAndWake, PullNone, 10000,
                 "\_SB.PCI0.GPIO", 0, ResourceConsumer) { 35 }
      })
      Name (_DSD, Package () {
        ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
        Package () {
          Package () { "cd-gpio", Package () { _SB.PCI0.SDXC, 0, 0, 1 } }
        }
      })
    }

Change-Id: Ie4c1bfadd962cf55a987edb9ef86e92174205770
    Signed-off-by: Duncan Laurie 
    Reviewed-on: https://review.coreboot.org/14995
    Tested-by: build bot (Jenkins)
    Reviewed-by: Aaron Durbin

See https://review.coreboot.org/14995 for details.

-gerrit