Re: [PATCH 0/4] Initial patch set for PURWA-IOT-EVK

[Yijie Yang <yijie.yang@oss.qualcomm.com>]

On 12/24/2025 3:09 AM, Dmitry Baryshkov wrote:
> On Tue, Dec 23, 2025 at 06:27:05PM +0100, Konrad Dybcio wrote:
>> On 12/23/25 3:12 AM, Yijie Yang wrote:
>>>
>>>
>>> On 12/22/2025 5:18 PM, Dmitry Baryshkov wrote:
>>>> On Mon, Dec 22, 2025 at 02:03:25PM +0800, YijieYang wrote:
>>>>> From: Yijie Yang <yijie.yang@oss.qualcomm.com>
>>>>>
>>>>> Introduce the device tree, DT bindings, and driver modifications required
>>>>> to bring up the PURWA-IOT-EVK evaluation board.
>>>>>
>>>>> Purwa and Hamoa are IoT variants of x1p42100 and x1e80100, both based on
>>>>> the IQ-X SoC series. Consequently, the two common files in this series are
>>>>> prefixed with 'iq-x-iot' to reflect this relationship.
>>>>>
>>>>> PURWA-IOT-EVK shares almost the same hardware design with HAMOA-IOT-EVK,
>>>>> except for differences in the BOM. As a result, most of the DTS can be
>>>>> shared between them.
>>>>>
>>>>> The changes focus on two key hardware components: the PURWA-IOT-SOM and
>>>>> the PURWA-IOT-EVK carrier board.
>>>>>
>>>>> Hardware delta between Hamoa and Purwa:
>>>>> - Display: Purwa’s display uses a different number of clocks, and its
>>>>>     frequency differs from Hamoa.
>>>>> - GPU: Purwa requires a separate firmware compared to Hamoa.
>>>>
>>>> Is it just a separate firmware, or does it use a different _GPU_?
>>>
>>> It uses a different GPU.
>>
>> I think it would be useful to call this paragraph "Hardware delta between
>> Hamoa-IoT-SoM/EVK and Purwa-IoT-whatever - because now Dmitry is asking
>> about differences between Hamoa-the-SoC and Purwa-the-SoC which we
>> expressed in purwa.dtsi
> 
> Nah, I pointed out that the letter is incorrect. It's not just a
> different firmware for the _same_ GPU. It's a different GPU revision.

I’ll update the description here.

> 

-- 
Best Regards,
Yijie