Re: [PATCH v2 0/3] hw_random: introduce Arm CryptoCell TRNG driver

[Arnd Bergmann]

On Sun, Feb 2, 2020 at 2:27 PM Hadar Gat <hadar.gat@xxxxxxx> wrote:
>
> The Arm CryptoCell is a hardware security engine.
> This patch introduces driver for its TRNG (True Random Number Generator)
> engine.
>
> Changes from previous veriosn: fixed 'make dt_bnding_check' errors.
>
> Hadar Gat (3):
>   dt-bindings: add device tree binding for Arm CryptoCell trng engine
>   hw_random: cctrng: introduce Arm CryptoCell driver
>   MAINTAINERS: add HG as cctrng maintainer

I looked at the patches briefly and everything makes sense to me,

Acked-by: Arnd Bergmann <arnd@xxxxxxxx>

There are two style issues that you could improve:

- The header is only included from a single file, so I would just fold
  its contents into the driver itself.

- You have a lot of "#ifdef CONFIG_PM" that are easy to get wrong
  with various combinations of config symbols. It's often better to
  leave that all compiled unconditionally and have the logic in
  UNIVERSAL_DEV_PM_OPS() take care of dropping the unused
  bits, with a __maybe_unused annotation on functions that cause
  a warning otherwise.

       Arnd