Hi Neal, On Wed, Nov 27, 2019 at 3:23 PM Neal Liu <neal.liu@xxxxxxxxxxxx> wrote: > > For MediaTek SoCs on ARMv8 with TrustZone enabled, peripherals like > entropy sources is not accessible from normal world (linux) and > rather accessible from secure world (ATF/TEE) only. This driver aims > to provide a generic interface to ATF rng service. > I am working on several SoCs that also will need this kind of driver to get entropy from Arm trusted firmware. If you intend to make this a generic interface, please clean up the references to MediaTek and give it a more generic name. For example "Arm Trusted Firmware random number driver". It will also be helpful if the SMC call number is configurable. - Lars