linux-kernel - Re: [PATCH 02/20] arm64: dts: qcom: Introduce Kaanapali SoC

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Message-ID: <7fc6ab09-44c9-434c-ab19-764c74b1176b@oss.qualcomm.com>
Date: Tue, 4 Nov 2025 17:04:41 +0800
From: Jingyi Wang <jingyi.wang@....qualcomm.com>
To: Akhil P Oommen <akhilpo@....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, aiqun.yu@....qualcomm.com,
        tingwei.zhang@....qualcomm.com, trilok.soni@....qualcomm.com,
        yijie.yang@....qualcomm.com,
        Tengfei Fan <tengfei.fan@....qualcomm.com>
Subject: Re: [PATCH 02/20] arm64: dts: qcom: Introduce Kaanapali SoC



On 10/14/2025 7:46 PM, Akhil P Oommen wrote:
> 
> 
> On 9/25/2025 5:47 AM, Jingyi Wang wrote:
>> Kaanapali is Snapdragon SoC from Qualcomm.
>>
<...>
>> +
>> +    reserved-memory {
>> +        #address-cells = <2>;
>> +        #size-cells = <2>;
>> +        ranges;
>> +
> 
> This is missing a bunch of reserved regions which causes device crash when you stress memory allocation.
> 
> -Akhil.
> 

Hi Akhil,

We will not add all the reserved-memory in dts, other regions are designed to
be added in bootloader.

Thanks,
Jingyi

>> +        pdp_mem: pdp_region@...00000 {
>> +            reg = <0x0 0x81300000 0x0 0x100000>;
>> +            no-map;
>> +        };
>> +
<...>
>