powerpc/crypto: rework Kconfig

This patch creates a new submenu for the NX cryptographic
hardware accelerator and breaks the NX options into their own
Kconfig file under drivers/crypto/nx/Kconfig.

This will permit additional NX functionality to be easily
and more cleanly added in the future without touching
drivers/crypto/Makefile|Kconfig.

Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 7 insertions, 13 deletions

diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index 7d74d092aa8f..662588a1c41b 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -298,21 +298,15 @@ config CRYPTO_DEV_TEGRA_AES
           will be called tegra-aes.
 
 config CRYPTO_DEV_NX
-        tristate "Support for Power7+ in-Nest cryptographic acceleration"
+        bool "Support for IBM Power7+ in-Nest cryptographic acceleration"
         depends on PPC64 && IBMVIO
-        select CRYPTO_AES
-        select CRYPTO_CBC
-        select CRYPTO_ECB
-        select CRYPTO_CCM
-        select CRYPTO_GCM
-        select CRYPTO_AUTHENC
-        select CRYPTO_XCBC
-        select CRYPTO_SHA256
-        select CRYPTO_SHA512
+        default n
         help
-          Support for Power7+ in-Nest cryptographic acceleration. This
-          module supports acceleration for AES and SHA2 algorithms. If you
-          choose 'M' here, this module will be called nx_crypto.
+          Support for Power7+ in-Nest cryptographic acceleration.
+
+if CRYPTO_DEV_NX
+        source "drivers/crypto/nx/Kconfig"
+endif
 
 config CRYPTO_DEV_UX500
         tristate "Driver for ST-Ericsson UX500 crypto hardware acceleration"