Hi again, > Address detection does not work because cd6h/cd7h port io can be > disabled, but it's accessible using mmio. This patch: > https://lore.kernel.org/all/20210715221828.244536-1-Terry.Bowman@xxxxxxx/ > with modified AMD_PCI_SMBUS_REVISION_MMIO fixed base address > detection. Okay, this patch is stalled because Terry is waiting for review comments. I'll mention the high priority. > Problem with RMI4 touchpad / trackpoint remains, because rmi4-smbus > needs host notify feature. I have tried implement this feature, > without success. Interrupts on IRQ 7 (SMBus) are generated only for > block data transfers, but not for trackpoint / touchpad move actions. > I have looked at pinctrl_amd and it looks, that activity is signaled > using GPIO. This looks promising: Isn't the interrupt described in the ACPI tables? All the best, Wolfram
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