From mboxrd@z Thu Jan  1 00:00:00 1970
From: Leo Yan <leo.yan@linaro.org>
Subject: [PATCH v2 RESEND 4/4] arm64: dts: enable idle states for Hi6220
Date: Thu, 21 Jan 2016 18:53:50 +0800
Message-ID: <1453373630-4693-5-git-send-email-leo.yan@linaro.org>
References: <1453373630-4693-1-git-send-email-leo.yan@linaro.org>
Return-path: <linux-kernel-owner@vger.kernel.org>
In-Reply-To: <1453373630-4693-1-git-send-email-leo.yan@linaro.org>
Sender: linux-kernel-owner@vger.kernel.org
To: Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will.deacon@arm.com>, Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>, Mark Rutland <mark.rutland@arm.com>, Ian Campbell <ijc+devicetree@hellion.org.uk>, Kumar Gala <galak@codeaurora.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Leo Yan <leo.yan@linaro.org>, Yiping Xu <xuyiping@hisilicon.com>, Yu Dongbin <yudongbin@hisilicon.com>, Haojian Zhuang <haojian.zhuang@linaro.org>, Chen Feng <puck.chen@hisilicon.com>, Tyler Baker <tyler.baker@linaro.org>, Bintian Wang <bintian.wang@huawei.com>, Sudeep Holla <sudeep.holla@arm.com>, Wei Xu <xuwei5@hisilicon.com>, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org
List-Id: devicetree@vger.kernel.org

Add cpu and cluster level's low power state for Hi6220.

Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
---
 arch/arm64/boot/dts/hisilicon/hi6220.dtsi | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
index 781681a..6fb1697 100644
--- a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
@@ -53,11 +53,35 @@
 			};
 		};
 
+		idle-states {
+			entry-method = "psci";
+
+			CPU_SLEEP: cpu-sleep {
+				compatible = "arm,idle-state";
+				local-timer-stop;
+				arm,psci-suspend-param = <0x0010000>;
+				entry-latency-us = <700>;
+				exit-latency-us = <250>;
+				min-residency-us = <1000>;
+			};
+
+			CLUSTER_SLEEP: cluster-sleep {
+				compatible = "arm,idle-state";
+				local-timer-stop;
+				arm,psci-suspend-param = <0x1010000>;
+				entry-latency-us = <1000>;
+				exit-latency-us = <700>;
+				min-residency-us = <2700>;
+				wakeup-latency-us = <1500>;
+			};
+		};
+
 		cpu0: cpu@0 {
 			compatible = "arm,cortex-a53", "arm,armv8";
 			device_type = "cpu";
 			reg = <0x0 0x0>;
 			enable-method = "psci";
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
 		};
 
 		cpu1: cpu@1 {
@@ -65,6 +89,7 @@
 			device_type = "cpu";
 			reg = <0x0 0x1>;
 			enable-method = "psci";
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
 		};
 
 		cpu2: cpu@2 {
@@ -72,6 +97,7 @@
 			device_type = "cpu";
 			reg = <0x0 0x2>;
 			enable-method = "psci";
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
 		};
 
 		cpu3: cpu@3 {
@@ -79,6 +105,7 @@
 			device_type = "cpu";
 			reg = <0x0 0x3>;
 			enable-method = "psci";
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
 		};
 
 		cpu4: cpu@100 {
@@ -86,6 +113,7 @@
 			device_type = "cpu";
 			reg = <0x0 0x100>;
 			enable-method = "psci";
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
 		};
 
 		cpu5: cpu@101 {
@@ -93,6 +121,7 @@
 			device_type = "cpu";
 			reg = <0x0 0x101>;
 			enable-method = "psci";
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
 		};
 
 		cpu6: cpu@102 {
@@ -100,6 +129,7 @@
 			device_type = "cpu";
 			reg = <0x0 0x102>;
 			enable-method = "psci";
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
 		};
 
 		cpu7: cpu@103 {
@@ -107,6 +137,7 @@
 			device_type = "cpu";
 			reg = <0x0 0x103>;
 			enable-method = "psci";
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
 		};
 	};
 
-- 
1.9.1