GPIO Driver for Skylake-Y PCH

Valdis Kl=?utf-8?Q?=c4=93?=tnieks valdis.kletnieks at
Fri Jun 14 14:46:19 EDT 2019

On Fri, 14 Jun 2019 10:58:53 -0700, "Alexander Ivanov" said:

> I have a hardware platform with Skylake i7-6500 CPU and Skylake-Y PCH
> southbridge, running 4.8.5 kernel fc25. The platform has 12 GPIO pins, however,
> none are available. gpio-pch driver does not support D31:F2 device that manages

> Am I missing something here?

Well.. my copy of drivers/gpio/gpio-pch.c has this near line 440:

static const struct pci_device_id pch_gpio_pcidev_id[] = {
        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x8803) },
        { PCI_DEVICE(PCI_VENDOR_ID_ROHM, 0x8014) },
        { PCI_DEVICE(PCI_VENDOR_ID_ROHM, 0x8043) },
        { PCI_DEVICE(PCI_VENDOR_ID_ROHM, 0x8803) },
        { 0, }
MODULE_DEVICE_TABLE(pci, pch_gpio_pcidev_id);

Though I'm having a hard time aligning that with "D31:F2". Are you confusing
a PCI address with a PCI ID, or is this on a non-PCI bus?
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