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From: Guodong Xu <guodong.xu@linaro.org>
To: xuwei5@hisilicon.com, robh+dt@kernel.org, mark.rutland@arm.com,
	catalin.marinas@arm.com, will.deacon@arm.com,
	keescook@chromium.org, anton@enomsg.org, ccross@android.com,
	tony.luck@intel.com
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Leo Yan <leo.yan@linaro.org>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	Kevin Wang <jean.wangtao@linaro.org>
Subject: [PATCH 1/7] arm64: dts: hi3660: enable idle states
Date: Mon,  7 Aug 2017 16:13:19 +0800	[thread overview]
Message-ID: <20170807081325.11406-2-guodong.xu@linaro.org> (raw)
In-Reply-To: <20170807081325.11406-1-guodong.xu@linaro.org>

From: Leo Yan <leo.yan@linaro.org>

On Hi3660 there have two clusters, one is CA53 cluster and another is
CA73 cluster. This two clusters have different idle states separately.
With Daniel Lezcano's patch (ARM: cpuidle: Support asymmetric idle
definition), now ARM idle driver can support different clusters with
different idle states.

Base on this, this patch is to bind two clusters idle states on Hi3660.
Except the "WFI" states are enabled by default for all CPUs, this patch
also binds below extra idle states:

- CA53 CPUs have two more states:
  CPU_SLEEP:       CPU power off state
  CLUSTER_SLEEP_0: Cluster power off state

- CA73 CPUs have three more states:
  CPU_NAP:         CPU retention state
  CPU_SLEEP:       CPU power off state
  CLUSTER_SLEEP_1: Cluster power off state

Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Kevin Wang <jean.wangtao@linaro.org>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
---
 arch/arm64/boot/dts/hisilicon/hi3660.dtsi | 63 +++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)

diff --git a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
index c6a1961..8921310 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
@@ -58,6 +58,7 @@
 			device_type = "cpu";
 			reg = <0x0 0x0>;
 			enable-method = "psci";
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP_0>;
 		};
 
 		cpu1: cpu@1 {
@@ -65,6 +66,7 @@
 			device_type = "cpu";
 			reg = <0x0 0x1>;
 			enable-method = "psci";
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP_0>;
 		};
 
 		cpu2: cpu@2 {
@@ -72,6 +74,7 @@
 			device_type = "cpu";
 			reg = <0x0 0x2>;
 			enable-method = "psci";
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP_0>;
 		};
 
 		cpu3: cpu@3 {
@@ -79,6 +82,7 @@
 			device_type = "cpu";
 			reg = <0x0 0x3>;
 			enable-method = "psci";
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP_0>;
 		};
 
 		cpu4: cpu@100 {
@@ -86,6 +90,11 @@
 			device_type = "cpu";
 			reg = <0x0 0x100>;
 			enable-method = "psci";
+			cpu-idle-states = <
+					&CPU_NAP
+					&CPU_SLEEP
+					&CLUSTER_SLEEP_1
+			>;
 		};
 
 		cpu5: cpu@101 {
@@ -93,6 +102,11 @@
 			device_type = "cpu";
 			reg = <0x0 0x101>;
 			enable-method = "psci";
+			cpu-idle-states = <
+					&CPU_NAP
+					&CPU_SLEEP
+					&CLUSTER_SLEEP_1
+			>;
 		};
 
 		cpu6: cpu@102 {
@@ -100,6 +114,11 @@
 			device_type = "cpu";
 			reg = <0x0 0x102>;
 			enable-method = "psci";
+			cpu-idle-states = <
+					&CPU_NAP
+					&CPU_SLEEP
+					&CLUSTER_SLEEP_1
+			>;
 		};
 
 		cpu7: cpu@103 {
@@ -107,6 +126,50 @@
 			device_type = "cpu";
 			reg = <0x0 0x103>;
 			enable-method = "psci";
+			cpu-idle-states = <
+					&CPU_NAP
+					&CPU_SLEEP
+					&CLUSTER_SLEEP_1
+			>;
+		};
+
+		idle-states {
+			entry-method = "psci";
+
+			CPU_NAP: cpu-nap {
+				compatible = "arm,idle-state";
+				arm,psci-suspend-param = <0x0000001>;
+				entry-latency-us = <7>;
+				exit-latency-us = <2>;
+				min-residency-us = <15>;
+			};
+
+			CPU_SLEEP: cpu-sleep {
+				compatible = "arm,idle-state";
+				local-timer-stop;
+				arm,psci-suspend-param = <0x0010000>;
+				entry-latency-us = <40>;
+				exit-latency-us = <70>;
+				min-residency-us = <3000>;
+			};
+
+			CLUSTER_SLEEP_0: cluster-sleep-0 {
+				compatible = "arm,idle-state";
+				local-timer-stop;
+				arm,psci-suspend-param = <0x1010000>;
+				entry-latency-us = <500>;
+				exit-latency-us = <5000>;
+				min-residency-us = <20000>;
+			};
+
+			CLUSTER_SLEEP_1: cluster-sleep-1 {
+				compatible = "arm,idle-state";
+				local-timer-stop;
+				arm,psci-suspend-param = <0x1010000>;
+				entry-latency-us = <1000>;
+				exit-latency-us = <5000>;
+				min-residency-us = <20000>;
+			};
 		};
 	};
 
-- 
2.10.2

  reply	other threads:[~2017-08-07  8:13 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-07  8:13 [PATCH 0/7] arm64: dts: hi3660: add more device nodes Guodong Xu
2017-08-07  8:13 ` Guodong Xu [this message]
2017-08-07  8:13 ` [PATCH 2/7] arm64: dts: hi3660: add L2 cache topology Guodong Xu
2017-08-07  8:13 ` [PATCH 3/7] arm64: dts: hi3660: add pmu dt node for hi3660 Guodong Xu
2017-08-07  8:13 ` [PATCH 4/7] arm64: dts: hikey960: Add optee node Guodong Xu
2017-08-07  8:13 ` [PATCH 5/7] arm64: dts: hikey960: Add support for syscon-reboot-mode Guodong Xu
2017-08-07  8:13 ` [PATCH 6/7] arm64: dts: hikey960: Add pstore support Guodong Xu
2017-08-07  8:13 ` [PATCH 7/7] arm64: dts: hi3660: Reset the mmc hosts Guodong Xu

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