1 files changed, 15 insertions, 2 deletions

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index d141bdb3a7d4..7ef172c2a1d6 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -276,8 +276,10 @@ config ACPI_CUSTOM_DSDT
         depends on !STANDALONE
         default n 
         help
-          This option is to load a custom ACPI DSDT
-          If you don't know what that is, say N.
+          This option supports a custom DSDT by linking it into the kernel.
+          See Documentation/acpi/dsdt-override.txt
+
+          If unsure, say N.
 
 config ACPI_CUSTOM_DSDT_FILE
         string "Custom DSDT Table file to include"
@@ -287,6 +289,17 @@ config ACPI_CUSTOM_DSDT_FILE
           Enter the full path name to the file which includes the AmlCode
           declaration.
 
+config ACPI_CUSTOM_DSDT_INITRD
+        bool "Read Custom DSDT from initramfs"
+        depends on BLK_DEV_INITRD
+        default n
+        help
+          This option supports a custom DSDT by optionally loading it from initrd.
+          See Documentation/acpi/dsdt-override.txt
+
+          If you are not using this feature now, but may use it later,
+          it is safe to say Y here.
+
 config ACPI_BLACKLIST_YEAR
         int "Disable ACPI for systems before Jan 1st this year" if X86_32
         default 0