linux-kernel - Re: [PATCH 00/20] arm64: dts: qcom: Introduce Kaanapali platform device tree

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Message-ID: <5e0e1cfd-e4bc-46c6-9367-ea628e6db794@oss.qualcomm.com>
Date: Wed, 3 Dec 2025 11:34:33 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Pavel Machek <pavel@....cz>
Cc: Jingyi Wang <jingyi.wang@....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>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        aiqun.yu@....qualcomm.com, tingwei.zhang@....qualcomm.com,
        trilok.soni@....qualcomm.com, yijie.yang@....qualcomm.com,
        Tengfei Fan <tengfei.fan@....qualcomm.com>,
        Qiang Yu <qiang.yu@....qualcomm.com>,
        Manish Pandey <manish.pandey@....qualcomm.com>,
        Ronak Raheja <ronak.raheja@....qualcomm.com>,
        Jishnu Prakash <jishnu.prakash@....qualcomm.com>,
        Kamal Wadhwa <kamal.wadhwa@....qualcomm.com>,
        Jyothi Kumar Seerapu <jyothi.seerapu@....qualcomm.com>,
        Prasad Kumpatla <prasad.kumpatla@....qualcomm.com>,
        Hangxiang Ma <hangxiang.ma@....qualcomm.com>,
        Vikash Garodia <vikash.garodia@....qualcomm.com>
Subject: Re: [PATCH 00/20] arm64: dts: qcom: Introduce Kaanapali platform
 device tree

On 12/2/25 9:56 PM, Pavel Machek wrote:
> On Tue 2025-12-02 19:33:03, Konrad Dybcio wrote:
>> On 12/2/25 7:21 PM, Pavel Machek wrote:
>>> Hi!
>>>
>>>> Introduce the Device Tree for the recently announced Snapdragon SoC from Qualcomm:
>>>> https://www.qualcomm.com/products/mobile/snapdragon/smartphones/snapdragon-8-series-mobile-platforms/snapdragon-8-elite-gen-5
>>>>
>>>> Bindings and base Device Tree for the Kaanapali SoC, MTP (Mobile Test Platform)
>>>> and QRD (Qualcommm Reference Device) are splited in three:
>>>>
>>>> - 1-3: MTP board boot-to-shell with basic function.
>>>> - 4-16: More feature including PCIE, sdcard, usb, DSPs, PMIC related, tsense, bus, crypto etc. Add QRD board support.
>>>> - 17-20: Multimedia features including audio, video and camss.
>>>
>>> Thanks for doing this. I assume there devices available with this are
>>> quite expensive/hard to get at this point?
>>
>> A number of them seem available at most shops now, but they just came out
>> recently and they're all flagship phones so understandably it'll probably
>> take some time before enthusiasts poke at them
> 
> Aha, that's actually good news, I was assuming only dev boards are
> available (MTP, QRD). So OnePlus 15, for example, would be suitable?
> (But I'd assume OnePlus 15 would still need separate dts, perhaps
> similar to MTP?).

There are always *some* bits that are common with the dev boards,
but it really varies. Depends on a specific device and how it was
designed.

Each device needs its own DTS, particularly since it encodes things
like voltage regulator settings, so the consequences may be dire if
there's a mismatch.

Konrad