Hi Jacopo,
On Fri, Oct 16, 2020 at 12:09 PM Jacopo Mondi <jacopo+rene...@jmondi.org> wrote:
> Document the 'maxim,high-threshold' vendor property in the bindings
> document of the max9286 driver.
>
> The newly introduced boolean property allows controlling the initial
> configuration of the GMSL reverse control channel to accommodate
> remote serializers pre-programmed with the high threshold power
> supply noise immunity enabled.
>
> Signed-off-by: Jacopo Mondi <jacopo+rene...@jmondi.org>
Thanks for your patch!
> --- a/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml
> +++ b/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml
> @@ -51,6 +51,19 @@ properties:
> '#gpio-cells':
> const: 2
>
> + maxim,high-threshold:
> + description: |
> + A boolean property to increase the initial amplitude of the reverse
> + control channel to compensate for remote serializers pre-programmed
> with
> + high threshold noise-immunity.
> +
> + Some camera modules (in example the RDACM20 one) include an on-board
> MCU
> + that pre-programs the embedded serializer with reverse channel power
> + supply noise immunity enabled. The deserializer shall increase its
> + reverse channel amplitude to compensate that and be able to communicate
> + with the remote end.
> + type: boolean
Does this "high" threshold correspond to some numerical value?
I.e. could we run into a future need to support more values than just
true/false?
If yes, we may want to use a numerical value from the start.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
