hwrng: add OP-TEE based rng driver

[sfrench/cifs-2.6.git] / drivers / char / hw_random / Kconfig

diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index dac895dc01b956882486b90e0ea75813b93ea1c7..25a7d8ffdb5dec6189c43830ac1aca34216a22f0 100644 (file)
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -424,6 +424,21 @@ config HW_RANDOM_EXYNOS
          will be called exynos-trng.
 
          If unsure, say Y.
+
+config HW_RANDOM_OPTEE
+       tristate "OP-TEE based Random Number Generator support"
+       depends on OPTEE
+       default HW_RANDOM
+       help
+         This  driver provides support for OP-TEE based Random Number
+         Generator on ARM SoCs where hardware entropy sources are not
+         accessible to normal world (Linux).
+
+         To compile this driver as a module, choose M here: the module
+         will be called optee-rng.
+
+         If unsure, say Y.
+
 endif # HW_RANDOM
 
 config UML_RANDOM