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Author SHA1 Message Date
Etienne Carriere
57fb86a97d drivers: rng: optee_rng: register to CONFIG_OPTEE_SERVICE_DISCOVERY 
Changes optee_rng driver to register itself has a OP-TEE service so
that a device is bound for the driver when OP-TEE enumerates the
PTA RNG service.

Cc: Sughosh Ganu <sughosh.ganu@linaro.org>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
 2022-09-14 15:23:03 -04:00
Patrick Delaunay
fd52e7f9c7 rng: add OP-TEE based Random Number Generator 
Add driver for OP-TEE based Random Number Generator on ARM SoCs
where hardware entropy sources are not accessible to normal world
and the RNG service is provided by a HWRNG Trusted Application (TA).

This driver is based on the linux driver: char/hw_random/optee-rng.c

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
 2022-04-11 10:28:04 -04:00