sb_edac controls a large number of different PCI functions. Rather than registering as a normal PCI driver for all of them, it registers for just one so that it gets probed and, at probe time, it looks for all the others. Coincidentally, the device it registers for also contains the SMBUS registers, so the PCI core will refuse to probe both sb_edac and a future iMC SMBUS driver. The drivers don't actually conflict, so just change sb_edac's device table to probe a different device. An alternative fix would be to merge the two drivers, but sb_edac will also refuse to load on non-ECC systems, whereas i2c_imc would still be useful without ECC. The only user-visible change should be that sb_edac appears to bind a different device.
Unified · Split
| @@ -500,7 +500,7 @@ static const struct pci_id_table pci_dev_descr_haswell_table[] = { · 499 unmodified lines | |||
| 500 | * pci_device_id table for which devices we are looking for | 500 | * pci_device_id table for which devices we are looking for |
| 501 | */ | 501 | */ |
| 502 | static const struct pci_device_id sbridge_pci_tbl[] = { | 502 | static const struct pci_device_id sbridge_pci_tbl[] = { |
| 503 | {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TA)}, | 503 | {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_HA0)}, |
| 504 | {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA)}, | 504 | {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA)}, |
| 505 | {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0)}, | 505 | {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0)}, |
| 506 | {0,} /* 0 terminated list. */ | 506 | {0,} /* 0 terminated list. */ |