hwrng: cctrng - Add dependency on OF

The cctrng is unusable on non-DT systems so we should depend
on it.

Signed-off-by: Hadar Gat <hadar.gat@arm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index 0c99735df69496ed49f663b63bdf6c1338537dc7..34047169bd06d809d6476fcbdb9731b5a1560f4e 100644 (file)
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -476,7 +476,7 @@ config HW_RANDOM_KEYSTONE
 
 config HW_RANDOM_CCTRNG
        tristate "Arm CryptoCell True Random Number Generator support"
-       depends on HAS_IOMEM
+       depends on HAS_IOMEM && OF
        default HW_RANDOM
        help
          This driver provides support for the True Random Number