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Message-ID: <CAFGrd9qew3P2w7G5FxVPGyNNdx=4ZLeGjSXAktQgeQGyD2FcqA@mail.gmail.com>
Date: Fri, 7 Apr 2023 15:14:40 +0200
From: Alexandre Mergnat <amergnat@...libre.com>
To: Wim Van Sebroeck <wim@...ux-watchdog.org>,
Guenter Roeck <linux@...ck-us.net>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Matthias Brugger <matthias.bgg@...il.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>,
Chaotian Jing <chaotian.jing@...iatek.com>,
Ulf Hansson <ulf.hansson@...aro.org>,
Wenbin Mei <wenbin.mei@...iatek.com>,
Linus Walleij <linus.walleij@...aro.org>,
Zhiyong Tao <zhiyong.tao@...iatek.com>,
Bernhard Rosenkränzer <bero@...libre.com>,
catalin.marinas@....com, Will Deacon <will@...nel.org>
Cc: linux-watchdog@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org, linux-mmc@...r.kernel.org,
linux-gpio@...r.kernel.org,
Alexandre Bailon <abailon@...libre.com>,
Fabien Parent <fparent@...libre.com>,
Amjad Ouled-Ameur <aouledameur@...libre.com>
Subject: Re: [PATCH v5 12/12] arm64: dts: mediatek: Add CPU Idle support
+ To: Catalin Marinas <catalin.marinas@....com>
+ To: Will Deacon <will@...nel.org>
Sorry for the noise.
Regards,
Alexandre
Le ven. 7 avr. 2023 à 14:59, <amergnat@...libre.com> a écrit :
>
> From: Amjad Ouled-Ameur <aouledameur@...libre.com>
>
> MT8365 has 3 CPU Idle states:
> - MCDI_CPU. (Multi-Core-Deep-Idle)
> - MCDI_CLUSTER.
> - DPIDLE. (Deep-Idle)
>
> Signed-off-by: Amjad Ouled-Ameur <aouledameur@...libre.com>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> Signed-off-by: Alexandre Mergnat <amergnat@...libre.com>
> ---
> arch/arm64/boot/dts/mediatek/mt8365.dtsi | 35 ++++++++++++++++++++++++++++++++
> 1 file changed, 35 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/mediatek/mt8365.dtsi b/arch/arm64/boot/dts/mediatek/mt8365.dtsi
> index cfe0c67ad61f..413496c92069 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8365.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8365.dtsi
> @@ -128,6 +128,7 @@ cpu0: cpu@0 {
> reg = <0x0>;
> #cooling-cells = <2>;
> enable-method = "psci";
> + cpu-idle-states = <&CPU_MCDI &CLUSTER_MCDI &CLUSTER_DPIDLE>;
> i-cache-size = <0x8000>;
> i-cache-line-size = <64>;
> i-cache-sets = <256>;
> @@ -147,6 +148,7 @@ cpu1: cpu@1 {
> reg = <0x1>;
> #cooling-cells = <2>;
> enable-method = "psci";
> + cpu-idle-states = <&CPU_MCDI &CLUSTER_MCDI &CLUSTER_DPIDLE>;
> i-cache-size = <0x8000>;
> i-cache-line-size = <64>;
> i-cache-sets = <256>;
> @@ -166,6 +168,7 @@ cpu2: cpu@2 {
> reg = <0x2>;
> #cooling-cells = <2>;
> enable-method = "psci";
> + cpu-idle-states = <&CPU_MCDI &CLUSTER_MCDI &CLUSTER_DPIDLE>;
> i-cache-size = <0x8000>;
> i-cache-line-size = <64>;
> i-cache-sets = <256>;
> @@ -185,6 +188,7 @@ cpu3: cpu@3 {
> reg = <0x3>;
> #cooling-cells = <2>;
> enable-method = "psci";
> + cpu-idle-states = <&CPU_MCDI &CLUSTER_MCDI &CLUSTER_DPIDLE>;
> i-cache-size = <0x8000>;
> i-cache-line-size = <64>;
> i-cache-sets = <256>;
> @@ -198,6 +202,37 @@ cpu3: cpu@3 {
> operating-points-v2 = <&cluster0_opp>;
> };
>
> + idle-states {
> + entry-method = "psci";
> +
> + CPU_MCDI: cpu-mcdi {
> + compatible = "arm,idle-state";
> + local-timer-stop;
> + arm,psci-suspend-param = <0x00010001>;
> + entry-latency-us = <300>;
> + exit-latency-us = <200>;
> + min-residency-us = <1000>;
> + };
> +
> + CLUSTER_MCDI: cluster-mcdi {
> + compatible = "arm,idle-state";
> + local-timer-stop;
> + arm,psci-suspend-param = <0x01010001>;
> + entry-latency-us = <350>;
> + exit-latency-us = <250>;
> + min-residency-us = <1200>;
> + };
> +
> + CLUSTER_DPIDLE: cluster-dpidle {
> + compatible = "arm,idle-state";
> + local-timer-stop;
> + arm,psci-suspend-param = <0x01010004>;
> + entry-latency-us = <300>;
> + exit-latency-us = <800>;
> + min-residency-us = <3300>;
> + };
> + };
> +
> l2: l2-cache {
> compatible = "cache";
> cache-level = <2>;
>
> --
> 2.25.1
>
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