On 12/11/2018 5:16 PM, Rafael J. Wysocki wrote:
AFAIK, ACPI spec says that AML code running on non-existing op-regions to be
discarded last time I checked.
I guess you mean "disregarded"?
I have seen Linux complain about reads/writes to non-existing I2C opregions
before as a read/write failure for every single AML transaction. I was under the
impression that we didn't care.
So the spec appears to expect the OS to silently ignore the failures
in those cases, so why should an error be returned?
I can certainly return success for this case when CONFIG_PCI is not present.
I know Linux is noisy about these.
