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

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Message-ID: <60884c0e-7533-788b-2f93-c128cf7d27fd@kernel.org>
Date:   Mon, 5 Dec 2022 21:19:32 +0200
From:   Georgi Djakov <djakov@...nel.org>
To:     Robert Foss <robert.foss@...aro.org>, 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
Cc:     Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: Re: [PATCH v3 08/11] arm64: dts: qcom: sm8350: Use 2 interconnect
 cells

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>;

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>;
>   		};
>