linux-kernel - Re: [PATCH v3 08/11] arm64: dts: qcom: sm8350: Use 2 interconnect cells

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Date:   Mon, 19 Dec 2022 17:15:56 +0100
From:   Robert Foss <robert.foss@...aro.org>
To:     Georgi Djakov <djakov@...nel.org>
Cc:     robdclark@...il.com, quic_abhinavk@...cinc.com,
        dmitry.baryshkov@...aro.org, sean@...rly.run, airlied@...ux.ie,
        daniel@...ll.ch, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, agross@...nel.org,
        bjorn.andersson@...aro.org, konrad.dybcio@...ainline.org,
        quic_kalyant@...cinc.com, angelogioacchino.delregno@...ainline.org,
        loic.poulain@...aro.org, swboyd@...omium.org,
        quic_vpolimer@...cinc.com, vkoul@...nel.org, dianders@...omium.org,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Jonathan Marek <jonathan@...ek.ca>,
        vinod.koul@...aro.org, quic_jesszhan@...cinc.com,
        andersson@...nel.org, Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: Re: [PATCH v3 08/11] arm64: dts: qcom: sm8350: Use 2 interconnect cells

On Mon, 5 Dec 2022 at 20:19, Georgi Djakov <djakov@...nel.org> wrote:
>
> Hi Robert,
>
> On 5.12.22 18:37, Robert Foss wrote:
> > Use two interconnect cells in order to optionally
> > support a path tag.
> >
> > Signed-off-by: Robert Foss <robert.foss@...aro.org>
> > Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> > ---
> >   arch/arm64/boot/dts/qcom/sm8350.dtsi | 28 ++++++++++++++--------------
> >   1 file changed, 14 insertions(+), 14 deletions(-)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/sm8350.dtsi b/arch/arm64/boot/dts/qcom/sm8350.dtsi
> > index 805d53d91952..434f8e8b12c1 100644
> > --- a/arch/arm64/boot/dts/qcom/sm8350.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/sm8350.dtsi
> > @@ -1543,56 +1543,56 @@ apps_smmu: iommu@...00000 {
> >               config_noc: interconnect@...0000 {
> >                       compatible = "qcom,sm8350-config-noc";
> >                       reg = <0 0x01500000 0 0xa580>;
> > -                     #interconnect-cells = <1>;
> > +                     #interconnect-cells = <2>;
> >                       qcom,bcm-voters = <&apps_bcm_voter>;
> >               };
> >
> >               mc_virt: interconnect@...0000 {
> >                       compatible = "qcom,sm8350-mc-virt";
> >                       reg = <0 0x01580000 0 0x1000>;
> > -                     #interconnect-cells = <1>;
> > +                     #interconnect-cells = <2>;
> >                       qcom,bcm-voters = <&apps_bcm_voter>;
> >               };
> [..]
> > @@ -1620,8 +1620,8 @@ ipa: ipa@...0000 {
> >                       clocks = <&rpmhcc RPMH_IPA_CLK>;
> >                       clock-names = "core";
> >
> > -                     interconnects = <&aggre2_noc MASTER_IPA &mc_virt SLAVE_EBI1>,
> > -                                     <&gem_noc MASTER_APPSS_PROC &config_noc SLAVE_IPA_CFG>;
> > +                     interconnects = <&aggre2_noc MASTER_IPA 0 &mc_virt SLAVE_EBI1 0>,
> > +                                     <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_IPA_CFG 0>;
> >                       interconnect-names = "memory",
> >                                            "config";
> >
> > @@ -1661,7 +1661,7 @@ mpss: remoteproc@...0000 {
> >                                       <&rpmhpd SM8350_MSS>;
> >                       power-domain-names = "cx", "mss";
> >
> > -                     interconnects = <&mc_virt MASTER_LLCC &mc_virt SLAVE_EBI1>;
> > +                     interconnects = <&mc_virt MASTER_LLCC &mc_virt SLAVE_EBI1 0>;
>
> The second cell for the first endpoint is missing, so this should be:
>         interconnects = <&mc_virt MASTER_LLCC 0 &mc_virt SLAVE_EBI1 0>;

Nice catch, thanks!

>
> Thanks,
> Georgi
>
> >
> >                       memory-region = <&pil_modem_mem>;
> >
> > @@ -2239,7 +2239,7 @@ cdsp: remoteproc@...00000 {
> >                                       <&rpmhpd SM8350_MXC>;
> >                       power-domain-names = "cx", "mxc";
> >
> > -                     interconnects = <&compute_noc MASTER_CDSP_PROC &mc_virt SLAVE_EBI1>;
> > +                     interconnects = <&compute_noc MASTER_CDSP_PROC 0 &mc_virt SLAVE_EBI1 0>;
> >
> >                       memory-region = <&pil_cdsp_mem>;
> >
> > @@ -2421,14 +2421,14 @@ usb_2_ssphy: phy@...be00 {
> >               dc_noc: interconnect@...0000 {
> >                       compatible = "qcom,sm8350-dc-noc";
> >                       reg = <0 0x090c0000 0 0x4200>;
> > -                     #interconnect-cells = <1>;
> > +                     #interconnect-cells = <2>;
> >                       qcom,bcm-voters = <&apps_bcm_voter>;
> >               };
> >
> >               gem_noc: interconnect@...0000 {
> >                       compatible = "qcom,sm8350-gem-noc";
> >                       reg = <0 0x09100000 0 0xb4000>;
> > -                     #interconnect-cells = <1>;
> > +                     #interconnect-cells = <2>;
> >                       qcom,bcm-voters = <&apps_bcm_voter>;
> >               };
> >
>