From ac42c48d1986514822dc7636326692b295a059e5 Mon Sep 17 00:00:00 2001 From: Lina Iyer Date: Fri, 3 Mar 2017 13:48:17 -0800 Subject: ARM64: dts: Define CPU power domain for MSM8916 Define power domain and the power states for the domain as defined by the PSCI firmware. The 8916 firmware supports OS initiated method of powering off the CPU clusters. Cc: Signed-off-by: Lina Iyer Signed-off-by: Ulf Hansson --- arch/arm64/boot/dts/qcom/msm8916.dtsi | 53 ++++++++++++++++++++++++++++++++--- 1 file changed, 49 insertions(+), 4 deletions(-) diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi index e51b04900726..d0bb0b9f66b4 100644 --- a/arch/arm64/boot/dts/qcom/msm8916.dtsi +++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi @@ -112,7 +112,7 @@ reg = <0x0>; next-level-cache = <&L2_0>; enable-method = "psci"; - cpu-idle-states = <&CPU_SPC>; + power-domains = <&CPU_PD0>; }; CPU1: cpu@1 { @@ -121,7 +121,7 @@ reg = <0x1>; next-level-cache = <&L2_0>; enable-method = "psci"; - cpu-idle-states = <&CPU_SPC>; + power-domains = <&CPU_PD1>; }; CPU2: cpu@2 { @@ -130,7 +130,7 @@ reg = <0x2>; next-level-cache = <&L2_0>; enable-method = "psci"; - cpu-idle-states = <&CPU_SPC>; + power-domains = <&CPU_PD2>; }; CPU3: cpu@3 { @@ -139,7 +139,7 @@ reg = <0x3>; next-level-cache = <&L2_0>; enable-method = "psci"; - cpu-idle-states = <&CPU_SPC>; + power-domains = <&CPU_PD3>; }; L2_0: l2-cache { @@ -156,12 +156,57 @@ min-residency-us = <2000>; local-timer-stop; }; + + CLUSTER_RET: cluster-retention { + compatible = "domain-idle-state"; + arm,psci-suspend-param = <0x1000010>; + entry-latency-us = <500>; + exit-latency-us = <500>; + min-residency-us = <2000>; + }; + + CLUSTER_PWRDN: cluster-gdhs { + compatible = "domain-idle-state"; + arm,psci-suspend-param = <0x1000030>; + entry-latency-us = <2000>; + exit-latency-us = <2000>; + min-residency-us = <6000>; + }; }; }; psci { compatible = "arm,psci-1.0"; method = "smc"; + + CPU_PD0: cpu-pd0 { + #power-domain-cells = <0>; + power-domains = <&CLUSTER_PD>; + domain-idle-states = <&CPU_SPC>; + }; + + CPU_PD1: cpu-pd1 { + #power-domain-cells = <0>; + power-domains = <&CLUSTER_PD>; + domain-idle-states = <&CPU_SPC>; + }; + + CPU_PD2: cpu-pd2 { + #power-domain-cells = <0>; + power-domains = <&CLUSTER_PD>; + domain-idle-states = <&CPU_SPC>; + }; + + CPU_PD3: cpu-pd3 { + #power-domain-cells = <0>; + power-domains = <&CLUSTER_PD>; + domain-idle-states = <&CPU_SPC>; + }; + + CLUSTER_PD: cluster-pd { + #power-domain-cells = <0>; + domain-idle-states = <&CLUSTER_RET>, <&CLUSTER_PWRDN>; + }; }; pmu { -- cgit v1.2.3