linux-kernel - Re: [RFC RESEND PATCH 4/7] arm64: dts: mt8183: add performance state support of scpsys

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Message-ID: <20190103044727.i34ak7vw6qfircvq@vireshk-i7>
Date:   Thu, 3 Jan 2019 10:17:27 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Henry Chen <henryc.chen@...iatek.com>
Cc:     Viresh Kumar <vireshk@...nel.org>, Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Mark Rutland <mark.rutland@....com>,
        Fan Chen <fan.chen@...iatek.com>,
        Weiyi Lu <weiyi.lu@...iatek.com>,
        James Liao <jamesjj.liao@...iatek.com>,
        Kees Cook <keescook@...omium.org>, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC RESEND PATCH 4/7] arm64: dts: mt8183: add performance state
 support of scpsys

On 02-01-19, 22:09, Henry Chen wrote:
> Add support for performance state of scpsys on mt8183 platform.
> 
> Signed-off-by: Henry Chen <henryc.chen@...iatek.com>
> ---
>  arch/arm64/boot/dts/mediatek/mt8183.dtsi | 21 +++++++++++++++++++++
>  1 file changed, 21 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> index 47926a7..e396410 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> @@ -9,6 +9,7 @@
>  #include <dt-bindings/interrupt-controller/irq.h>
>  #include <dt-bindings/interrupt-controller/arm-gic.h>
>  #include <dt-bindings/power/mt8183-power.h>
> +#include <dt-bindings/soc/mtk,dvfsrc.h>
>  
>  / {
>  	compatible = "mediatek,mt8183";
> @@ -243,6 +244,26 @@
>  			      "vpu-3", "vpu-4", "vpu-5";
>  		infracfg = <&infracfg>;
>  		smi_comm = <&smi_common>;
> +		operating-points-v2 = <&dvfsrc_opp_table>;
> +		dvfsrc_opp_table: opp-table {
> +			compatible = "operating-points-v2-mtk-level";
> +
> +			dvfsrc_vol_min: opp1 {
> +				mtk,level = <MT8183_DVFSRC_LEVEL_1>;
> +			};
> +
> +			dvfsrc_freq_medium: opp2 {
> +				mtk,level = <MT8183_DVFSRC_LEVEL_2>;
> +			};
> +
> +			dvfsrc_freq_max: opp3 {
> +				mtk,level = <MT8183_DVFSRC_LEVEL_3>;
> +			};
> +
> +			dvfsrc_vol_max: opp4 {
> +				mtk,level = <MT8183_DVFSRC_LEVEL_4>;
> +			};
> +		};
>  	};

I don't see a patch which makes use of this OPP table using the required-opps
thing. Where is that ?

-- 
viresh