Hi!
I found an older discussion on the same topic, where it is mentioned that the same problem also occurs on imx6dl, imx6d and imx6s:
https://linuxlists.cc/l/4/linux-crypto/t/3843436/caam_rng_trouble#post428292...
I have also observed the problem on an imx6dl, running a 5.10.112 kernel.
Therefore, the problem might persist for the other variants.
BR BB