Messages in this thread |  | | Date | Tue, 26 Apr 2016 18:54:37 +0300 | From | Mika Westerberg <> | Subject | Re: OpRegion conflicts for Skylake LPSS |
| |
On Tue, Apr 26, 2016 at 02:44:13AM +0200, Ben Gamari wrote: > > While trying to troubleshoot some touchpad issues on a Dell Latitude > E7470 (namely the touchpad being exposed only as a PS/2 device) I > noticed that the intel-lpss driver (using a 4.6-rc4 kernel) fails to > load with, > > ACPI Warning: SystemMemory range 0x00000000FE028000-0x00000000FE0281FF conflicts with OpRegion 0x00000000FE028000-0x00000000FE028207 (\_SB.PCI0.GEXP.BAR0) (20160108/utaddress-255) > ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver > intel-lpss: probe of INT3446:00 failed with error -16 > > The DSDT OpRegion in question looks like this, > > Scope (_SB.PCI0) > { > Device (GEXP) > { > Name (_ADR, One) // _ADR: Address > Name (_STA, 0x0B) // _STA: Status > OperationRegion (BAR0, SystemMemory, SB04, 0x0208) > Field (BAR0, DWordAcc, NoLock, Preserve) > { > ICON, 32, > TAR, 32, > Offset (0x10), > DATA, 32, > HCNT, 32, > LCNT, 32, > Offset (0x2C), > , 5, > ABRT, 1, > Offset (0x40), > RBCK, 32, > Offset (0x54), > CLR, 32, > Offset (0x6C), > ENB, 1, > Offset (0x70), > ACTV, 1, > TFNF, 1, > , 1, > RFNE, 1, > Offset (0x7C), > HOLD, 32, > Offset (0x9C), > ENSB, 1, > Offset (0x204), > RST, 32 > } > > It looks very much like these are describing the same device. Perhaps > the lpss driver should be binding to this ACPI node? Or perhaps this is > a firmware issue? Any guidance would be greatly appreciated.
Can you send me full acpidump of that machine?
|  |