of: make CONFIG_OF user selectable

With the addition of overlays, it is now plausible to use DT on any arch
and without an arch using it at boot time. It is also desirable to
expand the compile coverage of the DT code. Make CONFIG_OF user
selectable by converting the menu to menuconfig.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Acked-by: Grant Likely <grant.likely@lianro.org>

1 files changed, 9 insertions, 5 deletions

diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
index 07bb3c8f191b..fdf7e41e8a4b 100644
--- a/drivers/of/Kconfig
+++ b/drivers/of/Kconfig
@@ -1,11 +1,15 @@
 config DTC
         bool
 
-config OF
-        bool
+menuconfig OF
+        bool "Device Tree and Open Firmware support"
+        help
+          This option enables the device tree infrastructure.
+          It is automatically selected by platforms that need it or can
+          be enabled manually for unittests, overlays or
+          compile-coverage.
 
-menu "Device Tree and Open Firmware support"
-        depends on OF
+if OF
 
 config OF_UNITTEST
         bool "Device Tree runtime unit tests"
@@ -97,4 +101,4 @@ config OF_OVERLAY
           While this option is selected automatically when needed, you can
           enable it manually to improve device tree unit test coverage.
 
-endmenu # OF
+endif # OF