Re: [PATCH 03/10] dt-bindings: iio: adc: axp209: Add AXP192 compatible

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On Fri,  3 Jun 2022 14:57:07 +0100
Aidan MacDonald <aidanmacdonald.0x0@xxxxxxxxx> wrote:

> The AXP192 is identical to the AXP20x, except for two additional
> GPIO ADC channels.
> 
> Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@xxxxxxxxx>

There is an argument that could be made here to say this should
have a fallback compatible to a suitable existing part as the driver
would work, we'd just be missing a couple of channels.

I don't feel strongly either way, but thought I'd raise the possibility.

I guess it's irrelevant if an updated kernel is needed anyway to have
it functional because of support needed for some other part of the chip
though.

Jonathan

> ---
>  .../bindings/iio/adc/x-powers,axp209-adc.yaml  | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/x-powers,axp209-adc.yaml b/Documentation/devicetree/bindings/iio/adc/x-powers,axp209-adc.yaml
> index d6d3d8590171..1a68e650ac7d 100644
> --- a/Documentation/devicetree/bindings/iio/adc/x-powers,axp209-adc.yaml
> +++ b/Documentation/devicetree/bindings/iio/adc/x-powers,axp209-adc.yaml
> @@ -14,6 +14,23 @@ description: |
>    Device is a child of an axp209 multifunction device
>    ADC channels and their indexes per variant:
>  
> +  AXP192
> +  ------
> +   0 | acin_v
> +   1 | acin_i
> +   2 | vbus_v
> +   3 | vbus_i
> +   4 | pmic_temp
> +   5 | gpio0_v
> +   6 | gpio1_v
> +   7 | gpio2_v
> +   8 | gpio3_v
> +   9 | ipsout_v
> +  10 | batt_v
> +  11 | batt_chrg_i
> +  12 | batt_dischrg_i
> +  13 | ts_v
> +
>    AXP209
>    ------
>     0 | acin_v
> @@ -50,6 +67,7 @@ description: |
>  properties:
>    compatible:
>      oneOf:
> +      - const: x-powers,axp192-adc
>        - const: x-powers,axp209-adc
>        - const: x-powers,axp221-adc
>        - const: x-powers,axp813-adc




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