linux-kernel - Re: [PATCH 20/23] dt-bindings: iio: adc: exynos-adc: Add ADC-V3 variant

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Date:   Thu, 13 Jan 2022 14:32:12 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To:     Alim Akhtar <alim.akhtar@...sung.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     soc@...nel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, olof@...om.net,
        linus.walleij@...aro.org, catalin.marinas@....com,
        robh+dt@...nel.org, s.nawrocki@...sung.com,
        linux-samsung-soc@...r.kernel.org, pankaj.dubey@...sung.com,
        linux-fsd@...la.com, Tamseel Shams <m.shams@...sung.com>
Subject: Re: [PATCH 20/23] dt-bindings: iio: adc: exynos-adc: Add ADC-V3
 variant

On 13/01/2022 13:11, Alim Akhtar wrote:
> This patch adds a new compatible string for exynos's ADC-V3 variant.
> 
> Cc: linux-fsd@...la.com
> Signed-off-by: Tamseel Shams <m.shams@...sung.com>
> Signed-off-by: Alim Akhtar <alim.akhtar@...sung.com>
> ---
>  .../devicetree/bindings/iio/adc/samsung,exynos-adc.yaml          | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml b/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml
> index 81c87295912c..9303053759ca 100644
> --- a/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml
> +++ b/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml
> @@ -14,6 +14,7 @@ properties:
>      enum:
>        - samsung,exynos-adc-v1                 # Exynos5250
>        - samsung,exynos-adc-v2
> +      - samsung,exynos-adc-v3

Please use SoC-specific compatible. IP block versions are tricky because:
1. Documentation/datasheet mentioning which SoC has which block version
are not public.
2. Neither are public the datasheets for ADC blocks.
3. The versioning of IP blocks can be inaccurate.


Best regards,
Krzysztof