ACPI / tables: introduce ARCH_HAS_ACPI_TABLE_UPGRADE

We want to use the table upgrade feature in ARM64.
Introduce a new configuration option that allows that.

Signed-off-by: Aleksey Makarov <aleksey.makarov@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

2 files changed, 5 insertions, 1 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index d9a94da0c29f..f1a62447928c 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -22,6 +22,7 @@ config X86
         select ANON_INODES
         select ARCH_CLOCKSOURCE_DATA
         select ARCH_DISCARD_MEMBLOCK
+        select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
         select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
         select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
         select ARCH_HAS_DEVMEM_IS_ALLOWED
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index b7e2e776397d..0a8e41a52d09 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -311,9 +311,12 @@ config ACPI_CUSTOM_DSDT
         bool
         default ACPI_CUSTOM_DSDT_FILE != ""
 
+config ARCH_HAS_ACPI_TABLE_UPGRADE
+        def_bool n
+
 config ACPI_TABLE_UPGRADE
         bool "Allow upgrading ACPI tables via initrd"
-        depends on BLK_DEV_INITRD && X86
+        depends on BLK_DEV_INITRD && ARCH_HAS_ACPI_TABLE_UPGRADE
         default y
         help
           This option provides functionality to upgrade arbitrary ACPI tables