On Wed, Jan 03, 2018 at 03:02:31PM +0100, Eric Auger wrote:
> If I2C is built as a module, ACPI_I2C_OPREGION cannot be set
> and any ACPI opregion calls targeting I2C fail with no opregion found.
> 
> This patch allows ACPI_I2C_OPREGION to be enabled both if I2C is
> built into the kernel or built as a module.
> 
> Signed-off-by: Eric Auger <eric.auger@redhat.com>

I recall that we had some discussion until ending up with the current
solution. And I finally found it again:

http://www.serverphorums.com/read.php?12,1001402

In any case, I surely want Mika's ack on any change to ACPI related
Kconfig symbols. Adding him to CC...