From 3cbcfececc364d83ce48ec88519eb526d5a6d3d0 Mon Sep 17 00:00:00 2001 From: Dien Pham Date: Fri, 18 Jan 2019 11:47:53 +0100 Subject: [PATCH] arm64: dts: r8a7796: Add cpuidle support for CA53 cores Enable cpuidle (core shutdown) support for R-Car M3-W CA53 cores. Signed-off-by: Dien Pham Signed-off-by: Takeshi Kihara Signed-off-by: Ulrich Hecht Link: https://lore.kernel.org/r/1547808474-19427-5-git-send-email-uli+renesas@fpond.eu Signed-off-by: Geert Uytterhoeven --- arch/arm64/boot/dts/renesas/r8a7796.dtsi | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/r8a7796.dtsi b/arch/arm64/boot/dts/renesas/r8a7796.dtsi index 6e6cf7d18522..822c96601d3c 100644 --- a/arch/arm64/boot/dts/renesas/r8a7796.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a7796.dtsi @@ -189,6 +189,7 @@ power-domains = <&sysc R8A7796_PD_CA53_CPU0>; next-level-cache = <&L2_CA53>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_1>; #cooling-cells = <2>; dynamic-power-coefficient = <277>; clocks = <&cpg CPG_CORE R8A7796_CLK_Z2>; @@ -203,6 +204,7 @@ power-domains = <&sysc R8A7796_PD_CA53_CPU1>; next-level-cache = <&L2_CA53>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_1>; clocks = <&cpg CPG_CORE R8A7796_CLK_Z2>; operating-points-v2 = <&cluster1_opp>; capacity-dmips-mhz = <535>; @@ -215,6 +217,7 @@ power-domains = <&sysc R8A7796_PD_CA53_CPU2>; next-level-cache = <&L2_CA53>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_1>; clocks = <&cpg CPG_CORE R8A7796_CLK_Z2>; operating-points-v2 = <&cluster1_opp>; capacity-dmips-mhz = <535>; @@ -227,6 +230,7 @@ power-domains = <&sysc R8A7796_PD_CA53_CPU3>; next-level-cache = <&L2_CA53>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_1>; clocks = <&cpg CPG_CORE R8A7796_CLK_Z2>; operating-points-v2 = <&cluster1_opp>; capacity-dmips-mhz = <535>; @@ -257,6 +261,15 @@ exit-latency-us = <500>; min-residency-us = <4000>; }; + + CPU_SLEEP_1: cpu-sleep-1 { + compatible = "arm,idle-state"; + arm,psci-suspend-param = <0x0010000>; + local-timer-stop; + entry-latency-us = <700>; + exit-latency-us = <700>; + min-residency-us = <5000>; + }; }; }; -- 2.25.1