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[83.9.31.242]) by smtp.gmail.com with ESMTPSA id c11-20020ac2530b000000b004b4cbc942a3sm4332824lfh.127.2023.06.19.09.18.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Jun 2023 09:18:57 -0700 (PDT) From: Konrad Dybcio Date: Mon, 19 Jun 2023 18:18:54 +0200 Subject: [PATCH RFT RFC 2/3] arm64: dts: qcom: sc8280xp: Add missing CPU idle states MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20230619-topic-sc8280xp-idle-v1-2-35a8b98451d0@linaro.org> References: <20230619-topic-sc8280xp-idle-v1-0-35a8b98451d0@linaro.org> In-Reply-To: <20230619-topic-sc8280xp-idle-v1-0-35a8b98451d0@linaro.org> To: Andy Gross , Bjorn Andersson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Johan Hovold Cc: Marijn Suijten , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Konrad Dybcio , Krzysztof Kozlowski , Konrad Dybcio X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1687191534; l=3555; i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id; bh=KEJh5fKDHpG+tf7FsdNG34aNe2COjzMzqzjlkSjq5mA=; b=EAdzybHN11hL6DoTZDVLIw0L7SbOi69e139T6SXY7Fjnyra2wqywY2P/NKLQ+r5fGg4tHfvw6 DvApguSzEUCApK6v7xQXu7MAXuBYhU13p6VyrVTifD7I5vm31/h+ojP X-Developer-Key: i=konrad.dybcio@linaro.org; a=ed25519; pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms= Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Between WFI (C1) and rail power collapse (C4), the Cortex cores on the SC8280XP can also be shut down on their own (C3). Describe that missing idle state. Signed-off-by: Konrad Dybcio --- arch/arm64/boot/dts/qcom/sc8280xp.dtsi | 36 ++++++++++++++++++++++++++----= ---- 1 file changed, 28 insertions(+), 8 deletions(-) diff --git a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi b/arch/arm64/boot/dts/q= com/sc8280xp.dtsi index d524f851cb53..b8f2ec9477f5 100644 --- a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi +++ b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi @@ -264,6 +264,16 @@ idle-states { entry-method =3D "psci"; =20 LITTLE_CPU_SLEEP_0: cpu-sleep-0-0 { + compatible =3D "arm,idle-state"; + idle-state-name =3D "little-power-collapse"; + arm,psci-suspend-param =3D <0x40000003>; + entry-latency-us =3D <549>; + exit-latency-us =3D <901>; + min-residency-us =3D <1774>; + local-timer-stop; + }; + + LITTLE_CPU_SLEEP_1: cpu-sleep-0-1 { compatible =3D "arm,idle-state"; idle-state-name =3D "little-rail-power-collapse"; arm,psci-suspend-param =3D <0x40000004>; @@ -274,6 +284,16 @@ LITTLE_CPU_SLEEP_0: cpu-sleep-0-0 { }; =20 BIG_CPU_SLEEP_0: cpu-sleep-1-0 { + compatible =3D "arm,idle-state"; + idle-state-name =3D "big-power-collapse"; + arm,psci-suspend-param =3D <0x40000003>; + entry-latency-us =3D <523>; + exit-latency-us =3D <1244>; + min-residency-us =3D <2207>; + local-timer-stop; + }; + + BIG_CPU_SLEEP_1: cpu-sleep-1-1 { compatible =3D "arm,idle-state"; idle-state-name =3D "big-rail-power-collapse"; arm,psci-suspend-param =3D <0x40000004>; @@ -601,49 +621,49 @@ psci { CPU_PD0: power-domain-cpu0 { #power-domain-cells =3D <0>; power-domains =3D <&CLUSTER_PD>; - domain-idle-states =3D <&LITTLE_CPU_SLEEP_0>; + domain-idle-states =3D <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1>; }; =20 CPU_PD1: power-domain-cpu1 { #power-domain-cells =3D <0>; power-domains =3D <&CLUSTER_PD>; - domain-idle-states =3D <&LITTLE_CPU_SLEEP_0>; + domain-idle-states =3D <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1>; }; =20 CPU_PD2: power-domain-cpu2 { #power-domain-cells =3D <0>; power-domains =3D <&CLUSTER_PD>; - domain-idle-states =3D <&LITTLE_CPU_SLEEP_0>; + domain-idle-states =3D <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1>; }; =20 CPU_PD3: power-domain-cpu3 { #power-domain-cells =3D <0>; power-domains =3D <&CLUSTER_PD>; - domain-idle-states =3D <&LITTLE_CPU_SLEEP_0>; + domain-idle-states =3D <&LITTLE_CPU_SLEEP_0 &LITTLE_CPU_SLEEP_1>; }; =20 CPU_PD4: power-domain-cpu4 { #power-domain-cells =3D <0>; power-domains =3D <&CLUSTER_PD>; - domain-idle-states =3D <&BIG_CPU_SLEEP_0>; + domain-idle-states =3D <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1>; }; =20 CPU_PD5: power-domain-cpu5 { #power-domain-cells =3D <0>; power-domains =3D <&CLUSTER_PD>; - domain-idle-states =3D <&BIG_CPU_SLEEP_0>; + domain-idle-states =3D <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1>; }; =20 CPU_PD6: power-domain-cpu6 { #power-domain-cells =3D <0>; power-domains =3D <&CLUSTER_PD>; - domain-idle-states =3D <&BIG_CPU_SLEEP_0>; + domain-idle-states =3D <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1>; }; =20 CPU_PD7: power-domain-cpu7 { #power-domain-cells =3D <0>; power-domains =3D <&CLUSTER_PD>; - domain-idle-states =3D <&BIG_CPU_SLEEP_0>; + domain-idle-states =3D <&BIG_CPU_SLEEP_0 &BIG_CPU_SLEEP_1>; }; =20 CLUSTER_PD: power-domain-cpu-cluster0 { --=20 2.41.0