linux-kernel - Re: [PATCH 2/5] arm64: dts: qcom: msm8996: Add Venus OPP table

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Message-ID: <4g3y6no7yjufye7vnwfp4ylhvxghaqop76xuaubslerhu543ci@czy2tjq4rcfu>
Date: Sun, 1 Jun 2025 10:43:03 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Konrad Dybcio <konradybcio@...nel.org>
Cc: Bjorn Andersson <andersson@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Rajendra Nayak <quic_rjendra@...cinc.com>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: Re: [PATCH 2/5] arm64: dts: qcom: msm8996: Add Venus OPP table

On Sat, May 31, 2025 at 02:27:20PM +0200, Konrad Dybcio wrote:
> From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
> 
> Describe the DVFS levels explicitly.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/msm8996.dtsi | 39 ++++++++++++++++++++++++++++-------
>  1 file changed, 31 insertions(+), 8 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
> index ede851fbf628428f5740ca8add65ffc05360cc62..7bb34e60739b2e561ff5fd9e19a6e617fb601a60 100644
> --- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
> @@ -491,27 +491,25 @@ rpmpd: power-controller {
>  					rpmpd_opp_table: opp-table {
>  						compatible = "operating-points-v2";
>  
> -						rpmpd_opp1: opp1 {
> +						rpmpd_opp_ret: opp1 {
>  							opp-level = <1>;
>  						};
>  
> -						rpmpd_opp2: opp2 {
> -							opp-level = <2>;
> -						};
> +						/* No SVS_KRAIT/SVS_LOW */
>  
> -						rpmpd_opp3: opp3 {
> +						rpmpd_opp_svs_soc: opp3 {
>  							opp-level = <3>;
>  						};
>  
> -						rpmpd_opp4: opp4 {
> +						rpmpd_opp_nom: opp4 {
>  							opp-level = <4>;
>  						};
>  
> -						rpmpd_opp5: opp5 {
> +						rpmpd_opp_turbo: opp5 {
>  							opp-level = <5>;
>  						};
>  
> -						rpmpd_opp6: opp6 {
> +						rpmpd_opp_super_turbo: opp6 {

These renames deserve a phrase in the commit message. With that fixed:


Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>


>  							opp-level = <6>;
>  						};
>  					};
> @@ -2333,6 +2331,7 @@ venus: video-codec@...000 {
>  			reg = <0x00c00000 0xff000>;
>  			interrupts = <GIC_SPI 287 IRQ_TYPE_LEVEL_HIGH>;
>  			power-domains = <&mmcc VENUS_GDSC>;
> +			operating-points-v2 = <&venus_opp_table>;
>  			clocks = <&mmcc VIDEO_CORE_CLK>,
>  				 <&mmcc VIDEO_AHB_CLK>,
>  				 <&mmcc VIDEO_AXI_CLK>,
> @@ -2364,6 +2363,30 @@ venus: video-codec@...000 {
>  			memory-region = <&venus_mem>;
>  			status = "disabled";
>  
> +			venus_opp_table: opp-table {
> +				compatible = "operating-points-v2";
> +
> +				opp-75000000 {
> +					opp-hz = /bits/ 64 <75000000>;
> +					required-opps = <&rpmpd_opp_svs_soc>;
> +				};
> +
> +				opp-150000000 {
> +					opp-hz = /bits/ 64 <150000000>;
> +					required-opps = <&rpmpd_opp_svs_soc>;
> +				};
> +
> +				opp-346666667 {
> +					opp-hz = /bits/ 64 <346666667>;
> +					required-opps = <&rpmpd_opp_nom>;
> +				};
> +
> +				opp-520000000 {
> +					opp-hz = /bits/ 64 <520000000>;
> +					required-opps = <&rpmpd_opp_turbo>;
> +				};
> +			};
> +
>  			video-decoder {
>  				compatible = "venus-decoder";
>  				clocks = <&mmcc VIDEO_SUBCORE0_CLK>;
> 
> -- 
> 2.49.0
> 

-- 
With best wishes
Dmitry