On Wed, Sep 21, 2016 at 11:16:35AM +0200, Johannes Stezenbach wrote:

On Wed, Sep 21, 2016 at 12:06:14PM +0300, Mika Westerberg wrote:

quoted

On Tue, Sep 20, 2016 at 11:11:53PM +0200, Johannes Stezenbach wrote:

quoted

Or it is because the PNP0C40 device depends on GpioInt from PMIC
which isn't available...

            Method (_CRS, 0, NotSerialized)  // _CRS: Current Resource Settings
            {
                Name (CBUF, ResourceTemplate ()
                {
                    GpioInt (Edge, ActiveBoth, ExclusiveAndWake, PullUp, 0x0BB8,
                        "\\_SB.PCI0.I2C7.PMI2", 0x00, ResourceConsumer, ,
                        )
                        {   // Pin list
                            0x0016
                        }
                })
                Return (CBUF) /* \_SB_.TBAD._CRS.CBUF */
            }

Most likely this is the reason. I'll try to find if we have an existing
driver for this PMIC somewhere. I guess this is the Dollar Cove which is
successor of Crystal Cove IIRC which is already supported by the
mainline kernel.

There is an ADBG ("TI_DCOVE") in PMI2._STA, so Dollar Cove
sounds like a good guess.

David (CC'd) is working on getting the Dollar Cove PMIC driver
upstreamed to the mainline kernel.