Ok, so it's the i2c support from i2c-designware:
4.12: P: /devices/pci0000:00/INT33C2:00 E: DEVPATH=/devices/pci0000:00/INT33C2:00 E: ID_VENDOR_FROM_DATABASE=Interphase Corporation E: MODALIAS=acpi:INT33C2:INT33C2: E: SUBSYSTEM=platform E: USEC_INITIALIZED=8027689
4.13-rc1: P: /devices/pci0000:00/INT33C2:00 E: DEVPATH=/devices/pci0000:00/INT33C2:00 E: DRIVER=i2c_designware E: ID_VENDOR_FROM_DATABASE=Interphase Corporation E: MODALIAS=acpi:INT33C2:INT33C2: E: SUBSYSTEM=platform E: USEC_INITIALIZED=8644593
Probably all commits for i2c-designware slave adapter support need to be backported.
Ok, so it's the i2c support from i2c-designware:
4.12: pci0000: 00/INT33C2: 00 /devices/ pci0000: 00/INT33C2: 00 FROM_DATABASE= Interphase Corporation acpi:INT33C2: INT33C2: D=8027689
P: /devices/
E: DEVPATH=
E: ID_VENDOR_
E: MODALIAS=
E: SUBSYSTEM=platform
E: USEC_INITIALIZE
4.13-rc1: pci0000: 00/INT33C2: 00 /devices/ pci0000: 00/INT33C2: 00 i2c_designware FROM_DATABASE= Interphase Corporation acpi:INT33C2: INT33C2: D=8644593
P: /devices/
E: DEVPATH=
E: DRIVER=
E: ID_VENDOR_
E: MODALIAS=
E: SUBSYSTEM=platform
E: USEC_INITIALIZE
Probably all commits for i2c-designware slave adapter support need to be backported.