From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jisheng Zhang Subject: [PATCH] arm64: dts: berlin4ct: support cpuidle-dt Date: Mon, 30 Nov 2015 21:41:58 +0800 Message-ID: <1448890918-6999-1-git-send-email-jszhang@marvell.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Sender: linux-kernel-owner@vger.kernel.org To: sebastian.hesselbarth@gmail.com, lorenzo.pieralisi@arm.com, daniel.lezcano@linaro.org, will.deacon@arm.com, catalin.marinas@arm.com, robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Jisheng Zhang List-Id: devicetree@vger.kernel.org This patch adds an idle-states node to describe the berlin4ct idle states and also adds references to the idle-states node in all CPU nodes. After this patch cpuidle is enabled. Signed-off-by: Jisheng Zhang --- arch/arm64/boot/dts/marvell/berlin4ct.dtsi | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/arm64/boot/dts/marvell/berlin4ct.dtsi b/arch/arm64/boot/dts/marvell/berlin4ct.dtsi index 39d0676..3649cea 100644 --- a/arch/arm64/boot/dts/marvell/berlin4ct.dtsi +++ b/arch/arm64/boot/dts/marvell/berlin4ct.dtsi @@ -69,6 +69,7 @@ device_type = "cpu"; reg = <0x0>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_0>; }; cpu1: cpu@1 { @@ -76,6 +77,7 @@ device_type = "cpu"; reg = <0x1>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_0>; }; cpu2: cpu@2 { @@ -83,6 +85,7 @@ device_type = "cpu"; reg = <0x2>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_0>; }; cpu3: cpu@3 { @@ -90,6 +93,19 @@ device_type = "cpu"; reg = <0x3>; enable-method = "psci"; + cpu-idle-states = <&CPU_SLEEP_0>; + }; + + idle-states { + entry-method = "psci"; + CPU_SLEEP_0: cpu-sleep-0 { + compatible = "arm,idle-state"; + local-timer-stop; + arm,psci-suspend-param = <0x0010000>; + entry-latency-us = <75>; + exit-latency-us = <155>; + min-residency-us = <1000>; + }; }; }; -- 2.6.2