Re: [PATCH v5 3/3] hwrng: add mtk-sec-rng driver

[Lars Persson]

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