of: Put all CONFIG_OF dependencies into a Kconfig menu block

All of the options in drivers/of/Kconfig depend on CONFIG_OF.  Putting
all of them inside a menu block simplifies the dependency statements.
It also creates a logical group for adding user selectable OF options.

This patch also changes (PPC_OF || MICROBLAZE) statements to (!SPARC)
so that those options are available to other architectures (and in
fact the !SPARC conditions should probably be re-evalutated since the
code is more generic now)

This patch also moves the definition of CONFIG_DTC from arch/* to
drivers/of/Kconfig

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

1 files changed, 16 insertions, 9 deletions

diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
index d836b47d0be5..ae2d4ad67bd0 100644
--- a/drivers/of/Kconfig
+++ b/drivers/of/Kconfig
@@ -1,46 +1,53 @@
+config DTC
+        bool
+
 config OF
         bool
 
+menu "Flattened Device Tree and Open Firmware support"
+        depends on OF
+
 config OF_FLATTREE
         bool
-        depends on OF
+        select DTC
 
 config OF_DYNAMIC
         def_bool y
-        depends on OF && PPC_OF
+        depends on PPC_OF
 
 config OF_ADDRESS
         def_bool y
-        depends on OF && !SPARC
+        depends on !SPARC
 
 config OF_IRQ
         def_bool y
-        depends on OF && !SPARC
+        depends on !SPARC
 
 config OF_DEVICE
         def_bool y
-        depends on OF && (SPARC || PPC_OF || MICROBLAZE)
 
 config OF_GPIO
         def_bool y
-        depends on OF && (PPC_OF || MICROBLAZE) && GPIOLIB
+        depends on GPIOLIB && !SPARC
         help
           OpenFirmware GPIO accessors
 
 config OF_I2C
         def_tristate I2C
-        depends on OF && !SPARC && I2C
+        depends on I2C && !SPARC
         help
           OpenFirmware I2C accessors
 
 config OF_SPI
         def_tristate SPI
-        depends on OF && (PPC_OF || MICROBLAZE) && SPI
+        depends on SPI && !SPARC
         help
           OpenFirmware SPI accessors
 
 config OF_MDIO
         def_tristate PHYLIB
-        depends on OF && PHYLIB
+        depends on PHYLIB
         help
           OpenFirmware MDIO bus (Ethernet PHY) accessors
+
+endmenu # OF