linux-kernel - Re: [PATCH 1/4] dt-bindings: arm: qcom: Document HAMOA-IOT-EVK board

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Message-ID: <604a5823-c563-4d37-ab14-e3164f3b1cd8@kernel.org>
Date: Wed, 16 Jul 2025 11:30:26 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Yijie Yang <yijie.yang@....qualcomm.com>,
 Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] dt-bindings: arm: qcom: Document HAMOA-IOT-EVK board

On 16/07/2025 11:08, Yijie Yang wrote:
> Document the device tree binding for a new board named "EVK" based on
> the Qualcomm Hamoa-IoT platform.
> 
> The "hamoa" name refers to a family of SoCs that share the same silicon
> die but are offered in multiple speed bins. The specific SoC used in
> this board is the x1e80100, which represents one such bin within the
> Hamoa family.
> 
> Although "qcom,hamoa-iot-evk" is introduced as the board-specific
> compatible, the fallback compatible remains "qcom,x1e80100" to preserve
> compatibility with existing in-kernel drivers and software that already
> depend on this identifier.
> 
> Signed-off-by: Yijie Yang <yijie.yang@....qualcomm.com>
> ---
>  Documentation/devicetree/bindings/arm/qcom.yaml | 9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/arm/qcom.yaml b/Documentation/devicetree/bindings/arm/qcom.yaml
> index ae43b35565808ed27cd8354b9a342545c4a98ed6..83b09ec1100ca03044c832212a99e65cc1177985 100644
> --- a/Documentation/devicetree/bindings/arm/qcom.yaml
> +++ b/Documentation/devicetree/bindings/arm/qcom.yaml
> @@ -100,8 +100,8 @@ description: |
>          sm8550
>          sm8650
>          sm8750
> -        x1e78100
> -        x1e80100
> +        x1e78100 # hamoa
> +        x1e80100 # hamoa


Huh? Why, no drop.


>          x1p42100
>  
>    There are many devices in the list below that run the standard ChromeOS
> @@ -1162,6 +1162,11 @@ properties:
>                - qcom,x1p42100-crd
>            - const: qcom,x1p42100
>  
> +      - items:
> +          - enum:
> +              - qcom,hamoa-iot-evk

Don't duplicate entries. Look how this file is organized.


Best regards,
Krzysztof