linux-kernel - Re: [PATCH 3/3] arm64: dts: qcom: sc8280xp: Add SLPI

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Message-ID: <1fea245e-b49a-434a-bdb2-26c64aa6a3d2@oss.qualcomm.com>
Date: Sat, 3 May 2025 00:57:26 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: Bjorn Andersson <andersson@...nel.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-arm-msm@...r.kernel.org, linux-remoteproc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] arm64: dts: qcom: sc8280xp: Add SLPI

On 5/3/25 12:55 AM, Dmitry Baryshkov wrote:
> On Sat, May 03, 2025 at 12:38:01AM +0200, Konrad Dybcio wrote:
>> From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
>>
>> SC8280XP features a SLPI (Sensor Low Power Island) core. Describe it.
>>
>> Signed-off-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
> 
> Have your tried enabling it for X13s? Windows drivers provide
> qcslpi8280.mbn in the qcsubsys_ext_scss8280.cab cabinet.

Forgot to mention, it powers up and exposes the expected qrtr
service on the CRD

[...]

>> +			glink-edge {
>> +				interrupts-extended = <&ipcc IPCC_CLIENT_SLPI
>> +							IPCC_MPROC_SIGNAL_GLINK_QMP
>> +							IRQ_TYPE_EDGE_RISING>;
>> +				mboxes = <&ipcc IPCC_CLIENT_SLPI
>> +						IPCC_MPROC_SIGNAL_GLINK_QMP>;
>> +
>> +				label = "slpi";
>> +				qcom,remote-pid = <3>;
> 
> No fastrpc contexts?

I frankly don't know how to validate them

Konrad