Valdis, Thanks for quick response!
On Fri, 14 Jun 2019 11:46 -07:00, Valdis Klētnieks <[email protected]> wrote: > 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 > > GPIO. > > > 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? No, I believe I am not. This borrowed from Intel doc (https://lab.whitequark.org/files/gpioke/Intel-332690-004EN.pdf, see Ch 2) It is a PCI device with 8086/9d20 IDs. --Alex ps. I apologize, I mistyped "D31:F2" it's supposed to be D31:F1.
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