tree b6bcc8a8f0b96d4db6ef57861a06b239a7f94d9b
parent 50e9d3860b466388dbbbec2f67078cba0b1e1f09
author Werner Zeh <werner.zeh@siemens.com> 1622100412 +0200
committer Patrick Georgi <pgeorgi@google.com> 1622406047 +0000

drivers/i2c/rx6110sa: Add a Kconfig switch to disable ACPI support

In commit b64db833d6 a basic ACPI support was added to the driver.
With this support an SSDT-entry is created for this RTC and it is now
visible to the OS via ACPI. In Linux the PNP-devices, which are
reported over ACPI, are scanned rather early and if the entry is found,
the device is claimed even if there is no driver available yet.
In this case, when the native RTC-driver without ACPI-support is loaded
and tries to register this device, the RTC is already blocked by the
PNP-drivers and cannot be used anymore. This leads to a non-usable RTC
on kernels where the needed ACPI-extension is not yet merged into the
RTC driver.

This patch provides a way to disable the ACPI-support for the RTC if
needed.

Change-Id: Ic65794d409d13a78d17275c86ec14ee6f04cd2a6
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55003
Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>