Hi Niall,

thanks for your patch!

On Thu, Jan 26, 2023 at 11:18 AM Niall Leonard via B4 Submission
Endpoint [off-list ref] wrote:

 Optional properties:
        - no-output: GPIOs are read-only.
+       - no-input: GPIOs are write-only. Read is via a shadow register.

"Shadow register" is unclear technical lingo.

Just write "GPIO output registers are write-only"

DT bindings are OS neutral, the fact that Linux and other OS:es need to
cache ("shadow") this value is an implementation detail.

Yours,
Linus Walleij