Re: [PATCH v2 1/2] dt-bindings: arm: qcom: Add HAMOA-IOT-COME board

[Krzysztof Kozlowski <krzk@kernel.org>]

On 03/08/2026 08:14, yuanjiey wrote:
> On Thu, Jul 30, 2026 at 12:23:56PM +0200, Krzysztof Kozlowski wrote:
>> On 30/07/2026 12:08, Krzysztof Kozlowski wrote:
>>> On 30/07/2026 11:54, yuanjiey wrote:
>>>> On Thu, Jul 30, 2026 at 08:51:40AM +0200, Krzysztof Kozlowski wrote:
>>>>> On Mon, Jul 27, 2026 at 03:07:16PM +0800, Yuanjie Yang wrote:
>>>>>> Document the device tree binding for the HAMOA-IOT-COME board based on
>>>>>> the Qualcomm X1E80100 SoC.
>>>>>>
>>>>>> The platform consists of a system-on-module (SoM) mounted on a carrier
>>>>>> board. The SoM integrates the core system functionality, including a
>>>>>> SiP containing the X1E80100 SoC and its supporting components.
>>>>>>
>>>>>> The COME SiP hardware is effectively the same as the SoM used on the
>>>>>
>>>>> Effectively the same or the same? I googled for "hamoa iot come" and it
>>>>> gives me zero results. Provide some URLs describing both.
>>>> The same.
>>>>
>>>>
>>>> Here is pdf about the "hamoa iot come" SiP and SoM
>>>> link: https://advdownload.advantech.com.cn/productfile/PIS/SOM-6820/file/SOM-6820_DS(052925)20250529110758.pdf
>>>>
>>>> The preliminary figure provides a complete overview of architecture, including the SiP, SoM.
>>>>
>>>> In Block Diagram
>>>> hamoa come Qualcomm X-Elite SiP Module is the SoM on haoma evk.
>>>
>>> I see on that PDF "SOM-6820", not "Hamoa IoT Come".
>>>
>>> I have an impression that all this and previous bindings and DTs did not
>>> match reality at all. Or did not match how upstream works with such
>>> hardware.
>>>
>>
>> Adding more: I did ask in the past to properly represent SoM and
>> carriers. I pointed to other examples how this is done correctly. I did
>> look now inside and found absolutely no reference of actual product
>> called "Hamoa IoT" or "Purwa IoT". For sure there is no "Hamoa IoT Come"
>> SoM (sometimes COMe appears).
> 
> I check the hamoa iot evk board page:
> https://docs.qualcomm.com/doc/80-77183-262/topic/Getting-started.html#get-familiar
> and 

It says it has "IQ-X7xxx module".

> purwa iot evk board page:
> https://docs.qualcomm.com/doc/80-80022-297/80-80022-297_REV_AC_Qualcomm_IQ-X_Series_Evaluation_Kit_-_Linux_Bringup_guide.pdf

And this is "IQ-X5xxx"

So how is this anyhow related to Hamoa IoT or Hamoa Iot Come?


> 
> And I see below info:
> 
> Dragonwing IQ-X7xxx EVK components:
> The kit includes the following components:
> Dragonwing IQ-X7xxx EVK mainboard
> "System in package (SiP) "
> 
> I think the current naming of hamoa-iot-som.dtsi and purwa-iot-som.dtsi in the
> Linux device tree is incorrect. They should be renamed to hamoa-iot-sip.dtsi
> and purwa-iot-sip.dtsi.

som/sip does not matter here. That's not what we discuss.


> 
> hamoa-iot-som.dtsi --> hamoa-iot-sip.dtsi
> purwa-iot-som.dtsi --> purwa-iot-sip.dtsi
> 
>> Look, this is a SoM:
>> https://www.toradex.com/computer-on-modules/verdin-arm-family/nxp-imx95
>>
>> And you can find corresponding bindings and DTS in tree.
>>
>> I refuse to accept more of this fake products trying to imitate well
>> known industry standards in their own way and effectively pushing some
>> downstream crap, just because that's how we do it in downstream.
>>
>> Unless you can present us with such product details matching what you
>> send, I will be NAK-ing these and future patches like that.
> 
> Thanks for your tips:
> 
> I check hamoa come som page:
> https://advdownload.advantech.com.cn/productfile/PIS/SOM-6820/file/SOM-6820_DS(052925)20250529110758.pdf
> and come board page:
> https://www.advantech.com.cn/zh-cn/products/1-fc23ff/som-db5830/mod_16b1a718-27d6-4a4c-8684-e8f2a8e9c57b
> 
> So I should rename come binding with real devices name:
> binding should be:
> 
>       - items:
>           - enum:
>               - hamoa-som6820-db5830.dts
>           - const: hamoa-som6820.dtsi

No clue what is this. But the links above are Advantech.



Best regards,
Krzysztof