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From: Lina Iyer <lina.iyer@linaro.org>
To: ulf.hansson@linaro.org, khilman@kernel.org, rjw@rjwysocki.net,
	linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Cc: geert@linux-m68k.org, k.kozlowski@samsung.com,
	msivasub@codeaurora.org, agross@codeaurora.org,
	sboyd@codeaurora.org, linux-arm-msm@vger.kernel.org,
	lorenzo.pieralisi@arm.com, ahaslam@baylibre.com,
	mtitinger@baylibre.com, Lina Iyer <lina.iyer@linaro.org>,
	devicetree@vger.kernel.org
Subject: [RFC v2 11/12] ARM64: dts: Add PSCI cpuidle support for MSM8916
Date: Fri, 12 Feb 2016 13:50:37 -0700	[thread overview]
Message-ID: <1455310238-8963-12-git-send-email-lina.iyer@linaro.org> (raw)
In-Reply-To: <1455310238-8963-1-git-send-email-lina.iyer@linaro.org>

Add device bindings for CPUs to suspend using PSCI as the enable-method.

Cc: <devicetree@vger.kernel.org>
Signed-off-by: Lina Iyer <lina.iyer@linaro.org>
---
 arch/arm64/boot/dts/qcom/msm8916.dtsi | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
index 9153214..b7839a8 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -61,27 +61,51 @@
 			device_type = "cpu";
 			compatible = "arm,cortex-a53", "arm,armv8";
 			reg = <0x0>;
+			enable-method = "psci";
+			cpu-idle-states = <&CPU_SPC>;
 		};
 
 		CPU1: cpu@1 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a53", "arm,armv8";
 			reg = <0x1>;
+			enable-method = "psci";
+			cpu-idle-states = <&CPU_SPC>;
 		};
 
 		CPU2: cpu@2 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a53", "arm,armv8";
 			reg = <0x2>;
+			enable-method = "psci";
+			cpu-idle-states = <&CPU_SPC>;
 		};
 
 		CPU3: cpu@3 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a53", "arm,armv8";
 			reg = <0x3>;
+			enable-method = "psci";
+			cpu-idle-states = <&CPU_SPC>;
+		};
+
+		idle-states {
+			CPU_SPC: spc {
+				compatible = "arm,idle-state";
+				arm,psci-suspend-param = <0x40000002>;
+				entry-latency-us = <130>;
+				exit-latency-us = <150>;
+				min-residency-us = <2000>;
+				local-timer-stop;
+			};
 		};
 	};
 
+	psci {
+		compatible = "arm,psci-1.0";
+		method = "smc";
+	};
+
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupts = <GIC_PPI 2 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
-- 
2.1.4


WARNING: multiple messages have this Message-ID (diff)
From: lina.iyer@linaro.org (Lina Iyer)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC v2 11/12] ARM64: dts: Add PSCI cpuidle support for MSM8916
Date: Fri, 12 Feb 2016 13:50:37 -0700	[thread overview]
Message-ID: <1455310238-8963-12-git-send-email-lina.iyer@linaro.org> (raw)
In-Reply-To: <1455310238-8963-1-git-send-email-lina.iyer@linaro.org>

Add device bindings for CPUs to suspend using PSCI as the enable-method.

Cc: <devicetree@vger.kernel.org>
Signed-off-by: Lina Iyer <lina.iyer@linaro.org>
---
 arch/arm64/boot/dts/qcom/msm8916.dtsi | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
index 9153214..b7839a8 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -61,27 +61,51 @@
 			device_type = "cpu";
 			compatible = "arm,cortex-a53", "arm,armv8";
 			reg = <0x0>;
+			enable-method = "psci";
+			cpu-idle-states = <&CPU_SPC>;
 		};
 
 		CPU1: cpu at 1 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a53", "arm,armv8";
 			reg = <0x1>;
+			enable-method = "psci";
+			cpu-idle-states = <&CPU_SPC>;
 		};
 
 		CPU2: cpu at 2 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a53", "arm,armv8";
 			reg = <0x2>;
+			enable-method = "psci";
+			cpu-idle-states = <&CPU_SPC>;
 		};
 
 		CPU3: cpu at 3 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a53", "arm,armv8";
 			reg = <0x3>;
+			enable-method = "psci";
+			cpu-idle-states = <&CPU_SPC>;
+		};
+
+		idle-states {
+			CPU_SPC: spc {
+				compatible = "arm,idle-state";
+				arm,psci-suspend-param = <0x40000002>;
+				entry-latency-us = <130>;
+				exit-latency-us = <150>;
+				min-residency-us = <2000>;
+				local-timer-stop;
+			};
 		};
 	};
 
+	psci {
+		compatible = "arm,psci-1.0";
+		method = "smc";
+	};
+
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupts = <GIC_PPI 2 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
-- 
2.1.4

  parent reply	other threads:[~2016-02-12 20:50 UTC|newest]

Thread overview: 68+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-12 20:50 [RFC v2 00/12] PM: SoC idle support using PM domains Lina Iyer
2016-02-12 20:50 ` Lina Iyer
2016-02-12 20:50 ` [RFC v2 01/12] PM / Domains: Abstract genpd locking Lina Iyer
2016-02-12 20:50   ` Lina Iyer
2016-02-26 18:08   ` Stephen Boyd
2016-02-26 18:08     ` Stephen Boyd
2016-03-01 16:55     ` Lina Iyer
2016-03-01 16:55       ` Lina Iyer
2016-02-12 20:50 ` [RFC v2 02/12] PM / Domains: Support IRQ safe PM domains Lina Iyer
2016-02-12 20:50   ` Lina Iyer
2016-02-26 18:17   ` Stephen Boyd
2016-02-26 18:17     ` Stephen Boyd
2016-03-01 17:44     ` Lina Iyer
2016-03-01 17:44       ` Lina Iyer
2016-02-12 20:50 ` [RFC v2 03/12] PM / cpu_domains: Setup PM domains for CPUs/clusters Lina Iyer
2016-02-12 20:50   ` Lina Iyer
2016-02-17 23:38   ` Lina Iyer
2016-02-17 23:38     ` Lina Iyer
2016-02-18 17:29   ` [BUG FIX] PM / cpu_domains: Check for NULL callbacks Lina Iyer
2016-02-18 17:29     ` Lina Iyer
2016-02-18 17:46     ` Rafael J. Wysocki
2016-02-18 17:46       ` Rafael J. Wysocki
2016-02-18 22:51       ` Lina Iyer
2016-02-18 22:51         ` Lina Iyer
2016-02-26 19:10   ` [RFC v2 03/12] PM / cpu_domains: Setup PM domains for CPUs/clusters Stephen Boyd
2016-02-26 19:10     ` Stephen Boyd
2016-03-01 18:00     ` Lina Iyer
2016-03-01 18:00       ` Lina Iyer
2016-02-12 20:50 ` [RFC v2 04/12] ARM: cpuidle: Add runtime PM support for CPUs Lina Iyer
2016-02-12 20:50   ` Lina Iyer
2016-02-26 18:24   ` Stephen Boyd
2016-02-26 18:24     ` Stephen Boyd
2016-03-01 18:36     ` Lina Iyer
2016-03-01 18:36       ` Lina Iyer
2016-02-12 20:50 ` [RFC v2 05/12] timer: Export next wake up of a CPU Lina Iyer
2016-02-12 20:50   ` Lina Iyer
2016-02-12 20:50 ` [RFC v2 06/12] PM / cpu_domains: Record CPUs that are part of the domain Lina Iyer
2016-02-12 20:50   ` Lina Iyer
2016-02-26 19:20   ` Stephen Boyd
2016-02-26 19:20     ` Stephen Boyd
2016-03-01 19:24     ` Lina Iyer
2016-03-01 19:24       ` Lina Iyer
2016-02-12 20:50 ` [RFC v2 07/12] PM / cpu_domains: Add PM Domain governor for CPUs Lina Iyer
2016-02-12 20:50   ` Lina Iyer
2016-02-26 19:33   ` Stephen Boyd
2016-02-26 19:33     ` Stephen Boyd
2016-03-01 19:32     ` Lina Iyer
2016-03-01 19:32       ` Lina Iyer
2016-03-01 19:35       ` Stephen Boyd
2016-03-01 19:35         ` Stephen Boyd
2016-02-12 20:50 ` [RFC v2 08/12] Documentation / cpu_domains: Describe CPU PM domains setup and governor Lina Iyer
2016-02-12 20:50   ` Lina Iyer
2016-02-26 19:43   ` Stephen Boyd
2016-02-26 19:43     ` Stephen Boyd
2016-03-01 19:36     ` Lina Iyer
2016-03-01 19:36       ` Lina Iyer
2016-02-12 20:50 ` [RFC v2 09/12] drivers: firmware: psci: Allow OS Initiated suspend mode Lina Iyer
2016-02-12 20:50   ` Lina Iyer
2016-02-12 20:50 ` [RFC v2 10/12] ARM64: psci: Support cluster idle states for OS-Initiated Lina Iyer
2016-02-12 20:50   ` Lina Iyer
2016-02-12 20:50 ` Lina Iyer [this message]
2016-02-12 20:50   ` [RFC v2 11/12] ARM64: dts: Add PSCI cpuidle support for MSM8916 Lina Iyer
2016-02-12 20:50 ` [RFC v2 12/12] ARM64: dts: Define CPU power domain " Lina Iyer
2016-02-12 20:50   ` Lina Iyer
2016-02-26 19:50   ` Stephen Boyd
2016-02-26 19:50     ` Stephen Boyd
2016-03-01 19:41     ` Lina Iyer
2016-03-01 19:41       ` Lina Iyer

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