linux-kernel - Re: [PATCH v3 5/6] arm64: dts: qcom: sm6150: Add gpu and rgmu nodes

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Message-ID: <z4gqro2bx6oq2ht75m2klogo5dsirb74tmc3u3shjyalxmaxil@5sy7ufmqhdgw>
Date: Wed, 26 Nov 2025 02:42:59 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Cc: Akhil P Oommen <akhilpo@....qualcomm.com>,
        Rob Clark <robin.clark@....qualcomm.com>, Sean Paul <sean@...rly.run>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Dmitry Baryshkov <lumag@...nel.org>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Jessica Zhang <jesszhan0024@...il.com>,
        Dan Carpenter <dan.carpenter@...aro.org>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, Jie Zhang <quic_jiezh@...cinc.com>
Subject: Re: [PATCH v3 5/6] arm64: dts: qcom: sm6150: Add gpu and rgmu nodes

On Sat, Nov 22, 2025 at 03:03:10PM +0100, Konrad Dybcio wrote:
> On 11/21/25 10:52 PM, Akhil P Oommen wrote:
> > From: Jie Zhang <quic_jiezh@...cinc.com>
> > 
> > Add gpu and rgmu nodes for qcs615 chipset.
> > 
> > Signed-off-by: Jie Zhang <quic_jiezh@...cinc.com>
> > Signed-off-by: Akhil P Oommen <akhilpo@....qualcomm.com>
> > ---
> 
> [...]
> 
> > +			gpu_opp_table: opp-table {
> > +				compatible = "operating-points-v2";
> > +
> > +				opp-845000000 {
> > +					opp-hz = /bits/ 64 <845000000>;
> > +					required-opps = <&rpmhpd_opp_turbo>;
> > +					opp-peak-kBps = <7050000>;
> > +				};
> 
> I see another speed of 895 @ turbo_l1, perhaps that's for speedbins
> or mobile parts specifically?

msm-4.14 defines 7 speedbins for SM6150. Akhil, I don't see any of them
here.

> 
> [...]
> 
> > +
> > +				opp-745000000 {
> > +					opp-hz = /bits/ 64 <745000000>;
> > +					required-opps = <&rpmhpd_opp_nom_l1>;
> > +					opp-peak-kBps = <6075000>;
> > +				};
> > +
> > +				opp-650000000 {
> > +					opp-hz = /bits/ 64 <650000000>;
> > +					required-opps = <&rpmhpd_opp_nom>;
> > +					opp-peak-kBps = <5287500>;
> > +				};
> 
> Here the freq map says 700 MHz
> 
> > +				opp-500000000 {
> > +					opp-hz = /bits/ 64 <500000000>;
> > +					required-opps = <&rpmhpd_opp_svs_l1>;
> > +					opp-peak-kBps = <3975000>;
> > +				};
> 
> 550
> 
> Konrad

-- 
With best wishes
Dmitry