Broadcom Wi-Fi/Bluetooth on GPIO? (Baytrail tablet)

[Bastien Nocera <hadess@hadess.net>]

Heya,

On this tablet, based on a Baytrail SoC, I found reference of this
Broadcom device in the DSDT, and I believe it could be the
Bluetooth/Wi-Fi chipset (this one[1]?):
---8<---
Device (BRC3)
{
    Name (_ADR, One)  // _ADR: Address
    Name (_DEP, Package (0x01)  // _DEP: Dependencies
    {
        GPO2
    })
    Name (_HID, "BCM4321")  // _HID: Hardware ID 
    Name (_CID, "BCM43241")  // _CID: Compatible ID
    Name (GMOD, ResourceTemplate ()
    {
        GpioIo (Exclusive, PullDefault, 0x0000, 0x0000,
IoRestrictionOutputOnly,
            "\\_SB.GPO2", 0x00, ResourceConsumer, ,
            )
            {   // Pin list 
                0x0014
            }
    })
---8<---

Am I correct in thinking that it's a Broadcom chipset? What would it
take to get this supported in the kernel? I'm currently stuck on a
slightly older kernel (3.16.0) due to Intel graphics driver problems,
but I couldn't find anything directly related to this in the current
linus tree.

Cheers

[1]:
http://www.broadcom.com/products/Wireless-LAN/802.11-Wireless-LAN-Solutions/BCM43241