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

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Message-ID: <sz2qriqarxlfjr2pa6fpjfmeugagbztk42siuvtlgp45vjrokh@e3jdwa6ocxp5>
Date: Sat, 3 May 2025 07:41:58 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Cc: Konrad Dybcio <konradybcio@...nel.org>,
        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 Sat, May 03, 2025 at 12:57:26AM +0200, Konrad Dybcio wrote:
> 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

Well... The easiest way would be to upload fastrpc_shell_2 and attempt
to start sdsprpcd or hexagonrpcd.

-- 
With best wishes
Dmitry