arm64: dts: qcom: Add support for Radxa AirBox Q900

[PATCH 1/2] dt-bindings: arm: qcom: Add qcs9075-radxa-airbox-q900

Posted by Mecid Urganci 2 weeks, 5 days ago

Add device tree binding for the Radxa AirBox Q900 board based on
the Qualcomm QCS9075 SoC.

Signed-off-by: Mecid Urganci <mecid@mecomediagroup.de>
---
 Documentation/devicetree/bindings/arm/qcom.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/qcom.yaml b/Documentation/devicetree/bindings/arm/qcom.yaml
index 8c3df8efaa4d..2c492f4d784a 100644
--- a/Documentation/devicetree/bindings/arm/qcom.yaml
+++ b/Documentation/devicetree/bindings/arm/qcom.yaml
@@ -909,6 +909,12 @@ properties:
               - qcom,sa8775p-ride-r3
           - const: qcom,sa8775p
 
+      - items:
+          - enum:
+              - radxa,airbox-q900
+          - const: qcom,qcs9075
+          - const: qcom,sa8775p
+
       - items:
           - enum:
               - qcom,lemans-evk
-- 
2.47.3

Re: [PATCH 1/2] dt-bindings: arm: qcom: Add qcs9075-radxa-airbox-q900

Posted by Krzysztof Kozlowski 2 weeks, 5 days ago

On 18/03/2026 09:36, Mecid Urganci wrote:
> Add device tree binding for the Radxa AirBox Q900 board based on
> the Qualcomm QCS9075 SoC.

What is QCS9075? It's the first time this compatible appears and the
only other reference is socinfo commit which told nothing.

> 
> Signed-off-by: Mecid Urganci <mecid@mecomediagroup.de>
> ---
>  Documentation/devicetree/bindings/arm/qcom.yaml | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/arm/qcom.yaml b/Documentation/devicetree/bindings/arm/qcom.yaml
> index 8c3df8efaa4d..2c492f4d784a 100644
> --- a/Documentation/devicetree/bindings/arm/qcom.yaml
> +++ b/Documentation/devicetree/bindings/arm/qcom.yaml
> @@ -909,6 +909,12 @@ properties:
>                - qcom,sa8775p-ride-r3
>            - const: qcom,sa8775p
>  
> +      - items:
> +          - enum:
> +              - radxa,airbox-q900
> +          - const: qcom,qcs9075
> +          - const: qcom,sa8775p

Why qcs9075 is compatible with sa8775p?

> +
>        - items:
>            - enum:
>                - qcom,lemans-evk


Best regards,
Krzysztof

Re: [PATCH 1/2] dt-bindings: arm: qcom: Add qcs9075-radxa-airbox-q900

Posted by mecid@mecomediagroup.de 2 weeks, 5 days ago

On 2026-03-18 09:51, Krzysztof Kozlowski wrote:
> On 18/03/2026 09:36, Mecid Urganci wrote:
>> Add device tree binding for the Radxa AirBox Q900 board based on
>> the Qualcomm QCS9075 SoC.
> 
> What is QCS9075? It's the first time this compatible appears and the
> only other reference is socinfo commit which told nothing.
> 
>> 
>> Signed-off-by: Mecid Urganci <mecid@mecomediagroup.de>
>> ---
>>  Documentation/devicetree/bindings/arm/qcom.yaml | 6 ++++++
>>  1 file changed, 6 insertions(+)
>> 
>> diff --git a/Documentation/devicetree/bindings/arm/qcom.yaml 
>> b/Documentation/devicetree/bindings/arm/qcom.yaml
>> index 8c3df8efaa4d..2c492f4d784a 100644
>> --- a/Documentation/devicetree/bindings/arm/qcom.yaml
>> +++ b/Documentation/devicetree/bindings/arm/qcom.yaml
>> @@ -909,6 +909,12 @@ properties:
>>                - qcom,sa8775p-ride-r3
>>            - const: qcom,sa8775p
>> 
>> +      - items:
>> +          - enum:
>> +              - radxa,airbox-q900
>> +          - const: qcom,qcs9075
>> +          - const: qcom,sa8775p
> 
> Why qcs9075 is compatible with sa8775p?

Thank you for your feedback.

Yes from public information it is the same SoC without the automotive 
security features. Should I remove the qcs9075 reference and only keep 
qcom,sa8775p?

Here it is listed as part of lemans:
https://linux-msm.github.io/mainline-status/soc/lemans

Best regards,
Mecid Urganci

> 
>> +
>>        - items:
>>            - enum:
>>                - qcom,lemans-evk
> 
> 
> Best regards,
> Krzysztof

Re: [PATCH 1/2] dt-bindings: arm: qcom: Add qcs9075-radxa-airbox-q900

Posted by Krzysztof Kozlowski 2 weeks, 5 days ago

On 18/03/2026 10:55, mecid@mecomediagroup.de wrote:
>>>
>>> +      - items:
>>> +          - enum:
>>> +              - radxa,airbox-q900
>>> +          - const: qcom,qcs9075
>>> +          - const: qcom,sa8775p
>>
>> Why qcs9075 is compatible with sa8775p?
> 
> Thank you for your feedback.
> 
> Yes from public information it is the same SoC without the automotive 
> security features. Should I remove the qcs9075 reference and only keep 
> qcom,sa8775p?
> 
> Here it is listed as part of lemans:
> https://linux-msm.github.io/mainline-status/soc/lemans

Just explain it in commit msg, because this is the first documentation
of that compatible.

Best regards,
Krzysztof