linux-kernel - Re: [PATCH 3/3] arm64: dts: sc7180: Add OPP tables and power-domains for venus

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Date:   Wed, 1 Jul 2020 09:54:14 -0700
From:   Matthias Kaehlcke <mka@...omium.org>
To:     Rajendra Nayak <rnayak@...eaurora.org>
Cc:     stanimir.varbanov@...aro.org, agross@...nel.org,
        bjorn.andersson@...aro.org, linux-media@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] arm64: dts: sc7180: Add OPP tables and power-domains
 for venus

On Wed, Jul 01, 2020 at 05:10:38PM +0530, Rajendra Nayak wrote:
> Add the OPP tables in order to be able to vote on the performance state
> of a power-domain
> 
> Signed-off-by: Rajendra Nayak <rnayak@...eaurora.org>
> ---
>  arch/arm64/boot/dts/qcom/sc7180.dtsi | 35 +++++++++++++++++++++++++++++++++--
>  1 file changed, 33 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> index ad57df2..738a741 100644
> --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> @@ -2392,8 +2392,10 @@
>  			reg = <0 0x0aa00000 0 0xff000>;
>  			interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;
>  			power-domains = <&videocc VENUS_GDSC>,
> -					<&videocc VCODEC0_GDSC>;
> -			power-domain-names = "venus", "vcodec0";
> +					<&videocc VCODEC0_GDSC>,
> +					<&rpmhpd SC7180_CX>;
> +			power-domain-names = "venus", "vcodec0", "opp-pd";
> +			operating-points-v2 = <&venus_opp_table>;
>  			clocks = <&videocc VIDEO_CC_VENUS_CTL_CORE_CLK>,
>  				 <&videocc VIDEO_CC_VENUS_AHB_CLK>,
>  				 <&videocc VIDEO_CC_VENUS_CTL_AXI_CLK>,
> @@ -2414,6 +2416,35 @@
>  			video-encoder {
>  				compatible = "venus-encoder";
>  			};
> +
> +			venus_opp_table: venus-opp-table {
> +				compatible = "operating-points-v2";
> +
> +				opp-200000000 {
> +					opp-hz = /bits/ 64 <150000000>;
> +					required-opps = <&rpmhpd_opp_low_svs>;
> +				};
> +
> +				opp-320000000 {
> +					opp-hz = /bits/ 64 <270000000>;
> +					required-opps = <&rpmhpd_opp_svs>;
> +				};
> +
> +				opp-380000000 {
> +					opp-hz = /bits/ 64 <340000000>;
> +					required-opps = <&rpmhpd_opp_svs_l1>;
> +				};
> +
> +				opp-444000000 {
> +					opp-hz = /bits/ 64 <434000000>;
> +					required-opps = <&rpmhpd_opp_nom>;
> +				};
> +
> +				opp-533000000 {
> +					opp-hz = /bits/ 64 <500000000>;
> +					required-opps = <&rpmhpd_opp_turbo>;
> +				};

the labels of the OPP nodes don't match the specified frequencies