[v3] arm64: dts: juno: Add idle-states to device tree

Message ID	1449654053.2818.6.camel@linaro.org (mailing list archive)
State	New, archived
Headers	show Return-Path: <linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org> Message-ID: <1449654053.2818.6.camel@linaro.org> Subject: [PATCH v3] arm64: dts: juno: Add idle-states to device tree From: "Jon Medhurst (Tixy)" <tixy@linaro.org> To: arm@kernel.org, Catalin Marinas <catalin.marinas@arm.com>, Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Date: Wed, 09 Dec 2015 09:40:53 +0000 Mime-Version: 1.0 Precedence: list Cc: Punit Agrawal <punit.agrawal@arm.com>, Liviu Dudau <liviu.dudau@arm.com>, linux-arm-kernel@lists.infradead.org, Sudeep Holla <sudeep.holla@arm.com> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org

Message ID

1449654053.2818.6.camel@linaro.org (mailing list archive)

State

New, archived

Headers

Message-ID: <1449654053.2818.6.camel@linaro.org>
Subject: [PATCH v3] arm64: dts: juno: Add idle-states to device tree
From: "Jon Medhurst (Tixy)" <tixy@linaro.org>
To: arm@kernel.org, Catalin Marinas <catalin.marinas@arm.com>, Lorenzo
	Pieralisi <lorenzo.pieralisi@arm.com>
Date: Wed, 09 Dec 2015 09:40:53 +0000
Mime-Version: 1.0
Precedence: list
Cc: Punit Agrawal <punit.agrawal@arm.com>, Liviu Dudau <liviu.dudau@arm.com>,
	linux-arm-kernel@lists.infradead.org, Sudeep Holla <sudeep.holla@arm.com>
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org>
Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org

Commit Message

Jon Medhurst (Tixy) Dec. 9, 2015, 9:40 a.m. UTC

This patch adds idle-states bindings data collected through a set of
benchmarking experiments (latency and energy consumption) on Juno
boards. Latencies data represents the worst case scenarios as required
by the DT idle-states bindings.

Signed-off-by: Jon Medhurst <tixy@linaro.org>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
---

I don't know if this needs any other Ack or can finally go in (through
arm soc tree?)

Changes since v2:
- Updated commit message to Lorenzo's suggested text.

Changes since v1:
- Updated latency times to those provided by Lorenzo
- Included Juno r1 dt

 arch/arm64/boot/dts/arm/juno-r1.dts | 28 ++++++++++++++++++++++++++++
 arch/arm64/boot/dts/arm/juno.dts    | 28 ++++++++++++++++++++++++++++
 2 files changed, 56 insertions(+)

Comments

Lorenzo Pieralisi Dec. 9, 2015, 3:19 p.m. UTC | #1

[CC'ed Arnd, Olof and Kevin]

On Wed, Dec 09, 2015 at 09:40:53AM +0000, Jon Medhurst (Tixy) wrote:
> This patch adds idle-states bindings data collected through a set of
> benchmarking experiments (latency and energy consumption) on Juno
> boards. Latencies data represents the worst case scenarios as required
> by the DT idle-states bindings.
> 
> Signed-off-by: Jon Medhurst <tixy@linaro.org>
> Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> ---
> 
> I don't know if this needs any other Ack or can finally go in (through
> arm soc tree?)

I think it can be pulled as-is as far as I am concerned.

Thanks,
Lorenzo

> Changes since v2:
> - Updated commit message to Lorenzo's suggested text.
> 
> Changes since v1:
> - Updated latency times to those provided by Lorenzo
> - Included Juno r1 dt
> 
>  arch/arm64/boot/dts/arm/juno-r1.dts | 28 ++++++++++++++++++++++++++++
>  arch/arm64/boot/dts/arm/juno.dts    | 28 ++++++++++++++++++++++++++++
>  2 files changed, 56 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/arm/juno-r1.dts b/arch/arm64/boot/dts/arm/juno-r1.dts
> index 93bc3d7..8826f83 100644
> --- a/arch/arm64/boot/dts/arm/juno-r1.dts
> +++ b/arch/arm64/boot/dts/arm/juno-r1.dts
> @@ -60,6 +60,28 @@
>  			};
>  		};
>  
> +		idle-states {
> +			entry-method = "arm,psci";
> +
> +			CPU_SLEEP_0: cpu-sleep-0 {
> +				compatible = "arm,idle-state";
> +				arm,psci-suspend-param = <0x0010000>;
> +				local-timer-stop;
> +				entry-latency-us = <300>;
> +				exit-latency-us = <1200>;
> +				min-residency-us = <2000>;
> +			};
> +
> +			CLUSTER_SLEEP_0: cluster-sleep-0 {
> +				compatible = "arm,idle-state";
> +				arm,psci-suspend-param = <0x1010000>;
> +				local-timer-stop;
> +				entry-latency-us = <300>;
> +				exit-latency-us = <1200>;
> +				min-residency-us = <2500>;
> +			};
> +		};
> +
>  		A57_0: cpu@0 {
>  			compatible = "arm,cortex-a57","arm,armv8";
>  			reg = <0x0 0x0>;
> @@ -67,6 +89,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A57_L2>;
>  			clocks = <&scpi_dvfs 0>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A57_1: cpu@1 {
> @@ -76,6 +99,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A57_L2>;
>  			clocks = <&scpi_dvfs 0>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A53_0: cpu@100 {
> @@ -85,6 +109,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A53_L2>;
>  			clocks = <&scpi_dvfs 1>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A53_1: cpu@101 {
> @@ -94,6 +119,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A53_L2>;
>  			clocks = <&scpi_dvfs 1>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A53_2: cpu@102 {
> @@ -103,6 +129,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A53_L2>;
>  			clocks = <&scpi_dvfs 1>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A53_3: cpu@103 {
> @@ -112,6 +139,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A53_L2>;
>  			clocks = <&scpi_dvfs 1>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A57_L2: l2-cache0 {
> diff --git a/arch/arm64/boot/dts/arm/juno.dts b/arch/arm64/boot/dts/arm/juno.dts
> index 53442b5..dcfcf15 100644
> --- a/arch/arm64/boot/dts/arm/juno.dts
> +++ b/arch/arm64/boot/dts/arm/juno.dts
> @@ -60,6 +60,28 @@
>  			};
>  		};
>  
> +		idle-states {
> +			entry-method = "arm,psci";
> +
> +			CPU_SLEEP_0: cpu-sleep-0 {
> +				compatible = "arm,idle-state";
> +				arm,psci-suspend-param = <0x0010000>;
> +				local-timer-stop;
> +				entry-latency-us = <300>;
> +				exit-latency-us = <1200>;
> +				min-residency-us = <2000>;
> +			};
> +
> +			CLUSTER_SLEEP_0: cluster-sleep-0 {
> +				compatible = "arm,idle-state";
> +				arm,psci-suspend-param = <0x1010000>;
> +				local-timer-stop;
> +				entry-latency-us = <300>;
> +				exit-latency-us = <1200>;
> +				min-residency-us = <2500>;
> +			};
> +		};
> +
>  		A57_0: cpu@0 {
>  			compatible = "arm,cortex-a57","arm,armv8";
>  			reg = <0x0 0x0>;
> @@ -67,6 +89,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A57_L2>;
>  			clocks = <&scpi_dvfs 0>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A57_1: cpu@1 {
> @@ -76,6 +99,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A57_L2>;
>  			clocks = <&scpi_dvfs 0>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A53_0: cpu@100 {
> @@ -85,6 +109,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A53_L2>;
>  			clocks = <&scpi_dvfs 1>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A53_1: cpu@101 {
> @@ -94,6 +119,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A53_L2>;
>  			clocks = <&scpi_dvfs 1>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A53_2: cpu@102 {
> @@ -103,6 +129,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A53_L2>;
>  			clocks = <&scpi_dvfs 1>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A53_3: cpu@103 {
> @@ -112,6 +139,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A53_L2>;
>  			clocks = <&scpi_dvfs 1>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A57_L2: l2-cache0 {
> -- 
> 2.1.4
> 
> 
>

Lorenzo Pieralisi Dec. 16, 2015, 10:33 a.m. UTC | #2

Hi Arnd, Olof, Kevin,

May you consider pulling this patch please or you prefer us sending
a pull request ?

Thanks a lot,
Lorenzo

On Wed, Dec 09, 2015 at 09:40:53AM +0000, Jon Medhurst (Tixy) wrote:
> This patch adds idle-states bindings data collected through a set of
> benchmarking experiments (latency and energy consumption) on Juno
> boards. Latencies data represents the worst case scenarios as required
> by the DT idle-states bindings.
> 
> Signed-off-by: Jon Medhurst <tixy@linaro.org>
> Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> ---
> 
> I don't know if this needs any other Ack or can finally go in (through
> arm soc tree?)
> 
> Changes since v2:
> - Updated commit message to Lorenzo's suggested text.
> 
> Changes since v1:
> - Updated latency times to those provided by Lorenzo
> - Included Juno r1 dt
> 
>  arch/arm64/boot/dts/arm/juno-r1.dts | 28 ++++++++++++++++++++++++++++
>  arch/arm64/boot/dts/arm/juno.dts    | 28 ++++++++++++++++++++++++++++
>  2 files changed, 56 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/arm/juno-r1.dts b/arch/arm64/boot/dts/arm/juno-r1.dts
> index 93bc3d7..8826f83 100644
> --- a/arch/arm64/boot/dts/arm/juno-r1.dts
> +++ b/arch/arm64/boot/dts/arm/juno-r1.dts
> @@ -60,6 +60,28 @@
>  			};
>  		};
>  
> +		idle-states {
> +			entry-method = "arm,psci";
> +
> +			CPU_SLEEP_0: cpu-sleep-0 {
> +				compatible = "arm,idle-state";
> +				arm,psci-suspend-param = <0x0010000>;
> +				local-timer-stop;
> +				entry-latency-us = <300>;
> +				exit-latency-us = <1200>;
> +				min-residency-us = <2000>;
> +			};
> +
> +			CLUSTER_SLEEP_0: cluster-sleep-0 {
> +				compatible = "arm,idle-state";
> +				arm,psci-suspend-param = <0x1010000>;
> +				local-timer-stop;
> +				entry-latency-us = <300>;
> +				exit-latency-us = <1200>;
> +				min-residency-us = <2500>;
> +			};
> +		};
> +
>  		A57_0: cpu@0 {
>  			compatible = "arm,cortex-a57","arm,armv8";
>  			reg = <0x0 0x0>;
> @@ -67,6 +89,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A57_L2>;
>  			clocks = <&scpi_dvfs 0>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A57_1: cpu@1 {
> @@ -76,6 +99,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A57_L2>;
>  			clocks = <&scpi_dvfs 0>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A53_0: cpu@100 {
> @@ -85,6 +109,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A53_L2>;
>  			clocks = <&scpi_dvfs 1>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A53_1: cpu@101 {
> @@ -94,6 +119,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A53_L2>;
>  			clocks = <&scpi_dvfs 1>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A53_2: cpu@102 {
> @@ -103,6 +129,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A53_L2>;
>  			clocks = <&scpi_dvfs 1>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A53_3: cpu@103 {
> @@ -112,6 +139,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A53_L2>;
>  			clocks = <&scpi_dvfs 1>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A57_L2: l2-cache0 {
> diff --git a/arch/arm64/boot/dts/arm/juno.dts b/arch/arm64/boot/dts/arm/juno.dts
> index 53442b5..dcfcf15 100644
> --- a/arch/arm64/boot/dts/arm/juno.dts
> +++ b/arch/arm64/boot/dts/arm/juno.dts
> @@ -60,6 +60,28 @@
>  			};
>  		};
>  
> +		idle-states {
> +			entry-method = "arm,psci";
> +
> +			CPU_SLEEP_0: cpu-sleep-0 {
> +				compatible = "arm,idle-state";
> +				arm,psci-suspend-param = <0x0010000>;
> +				local-timer-stop;
> +				entry-latency-us = <300>;
> +				exit-latency-us = <1200>;
> +				min-residency-us = <2000>;
> +			};
> +
> +			CLUSTER_SLEEP_0: cluster-sleep-0 {
> +				compatible = "arm,idle-state";
> +				arm,psci-suspend-param = <0x1010000>;
> +				local-timer-stop;
> +				entry-latency-us = <300>;
> +				exit-latency-us = <1200>;
> +				min-residency-us = <2500>;
> +			};
> +		};
> +
>  		A57_0: cpu@0 {
>  			compatible = "arm,cortex-a57","arm,armv8";
>  			reg = <0x0 0x0>;
> @@ -67,6 +89,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A57_L2>;
>  			clocks = <&scpi_dvfs 0>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A57_1: cpu@1 {
> @@ -76,6 +99,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A57_L2>;
>  			clocks = <&scpi_dvfs 0>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A53_0: cpu@100 {
> @@ -85,6 +109,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A53_L2>;
>  			clocks = <&scpi_dvfs 1>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A53_1: cpu@101 {
> @@ -94,6 +119,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A53_L2>;
>  			clocks = <&scpi_dvfs 1>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A53_2: cpu@102 {
> @@ -103,6 +129,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A53_L2>;
>  			clocks = <&scpi_dvfs 1>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A53_3: cpu@103 {
> @@ -112,6 +139,7 @@
>  			enable-method = "psci";
>  			next-level-cache = <&A53_L2>;
>  			clocks = <&scpi_dvfs 1>;
> +			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
>  		};
>  
>  		A57_L2: l2-cache0 {
> -- 
> 2.1.4
> 
> 
>

Olof Johansson Dec. 22, 2015, 7:23 p.m. UTC | #3

On Wed, Dec 09, 2015 at 09:40:53AM +0000, Jon Medhurst (Tixy) wrote:
> This patch adds idle-states bindings data collected through a set of
> benchmarking experiments (latency and energy consumption) on Juno
> boards. Latencies data represents the worst case scenarios as required
> by the DT idle-states bindings.
> 
> Signed-off-by: Jon Medhurst <tixy@linaro.org>
> Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> ---

Applied, thanks.


-Olof

diff --git a/arch/arm64/boot/dts/arm/juno-r1.dts b/arch/arm64/boot/dts/arm/juno-r1.dts
index 93bc3d7..8826f83 100644
--- a/arch/arm64/boot/dts/arm/juno-r1.dts
+++ b/arch/arm64/boot/dts/arm/juno-r1.dts
@@ -60,6 +60,28 @@ 
 			};
 		};
 
+		idle-states {
+			entry-method = "arm,psci";
+
+			CPU_SLEEP_0: cpu-sleep-0 {
+				compatible = "arm,idle-state";
+				arm,psci-suspend-param = <0x0010000>;
+				local-timer-stop;
+				entry-latency-us = <300>;
+				exit-latency-us = <1200>;
+				min-residency-us = <2000>;
+			};
+
+			CLUSTER_SLEEP_0: cluster-sleep-0 {
+				compatible = "arm,idle-state";
+				arm,psci-suspend-param = <0x1010000>;
+				local-timer-stop;
+				entry-latency-us = <300>;
+				exit-latency-us = <1200>;
+				min-residency-us = <2500>;
+			};
+		};
+
 		A57_0: cpu@0 {
 			compatible = "arm,cortex-a57","arm,armv8";
 			reg = <0x0 0x0>;
@@ -67,6 +89,7 @@ 
 			enable-method = "psci";
 			next-level-cache = <&A57_L2>;
 			clocks = <&scpi_dvfs 0>;
+			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
 		};
 
 		A57_1: cpu@1 {
@@ -76,6 +99,7 @@ 
 			enable-method = "psci";
 			next-level-cache = <&A57_L2>;
 			clocks = <&scpi_dvfs 0>;
+			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
 		};
 
 		A53_0: cpu@100 {
@@ -85,6 +109,7 @@ 
 			enable-method = "psci";
 			next-level-cache = <&A53_L2>;
 			clocks = <&scpi_dvfs 1>;
+			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
 		};
 
 		A53_1: cpu@101 {
@@ -94,6 +119,7 @@ 
 			enable-method = "psci";
 			next-level-cache = <&A53_L2>;
 			clocks = <&scpi_dvfs 1>;
+			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
 		};
 
 		A53_2: cpu@102 {
@@ -103,6 +129,7 @@ 
 			enable-method = "psci";
 			next-level-cache = <&A53_L2>;
 			clocks = <&scpi_dvfs 1>;
+			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
 		};
 
 		A53_3: cpu@103 {
@@ -112,6 +139,7 @@ 
 			enable-method = "psci";
 			next-level-cache = <&A53_L2>;
 			clocks = <&scpi_dvfs 1>;
+			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
 		};
 
 		A57_L2: l2-cache0 {
diff --git a/arch/arm64/boot/dts/arm/juno.dts b/arch/arm64/boot/dts/arm/juno.dts
index 53442b5..dcfcf15 100644
--- a/arch/arm64/boot/dts/arm/juno.dts
+++ b/arch/arm64/boot/dts/arm/juno.dts
@@ -60,6 +60,28 @@ 
 			};
 		};
 
+		idle-states {
+			entry-method = "arm,psci";
+
+			CPU_SLEEP_0: cpu-sleep-0 {
+				compatible = "arm,idle-state";
+				arm,psci-suspend-param = <0x0010000>;
+				local-timer-stop;
+				entry-latency-us = <300>;
+				exit-latency-us = <1200>;
+				min-residency-us = <2000>;
+			};
+
+			CLUSTER_SLEEP_0: cluster-sleep-0 {
+				compatible = "arm,idle-state";
+				arm,psci-suspend-param = <0x1010000>;
+				local-timer-stop;
+				entry-latency-us = <300>;
+				exit-latency-us = <1200>;
+				min-residency-us = <2500>;
+			};
+		};
+
 		A57_0: cpu@0 {
 			compatible = "arm,cortex-a57","arm,armv8";
 			reg = <0x0 0x0>;
@@ -67,6 +89,7 @@ 
 			enable-method = "psci";
 			next-level-cache = <&A57_L2>;
 			clocks = <&scpi_dvfs 0>;
+			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
 		};
 
 		A57_1: cpu@1 {
@@ -76,6 +99,7 @@ 
 			enable-method = "psci";
 			next-level-cache = <&A57_L2>;
 			clocks = <&scpi_dvfs 0>;
+			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
 		};
 
 		A53_0: cpu@100 {
@@ -85,6 +109,7 @@ 
 			enable-method = "psci";
 			next-level-cache = <&A53_L2>;
 			clocks = <&scpi_dvfs 1>;
+			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
 		};
 
 		A53_1: cpu@101 {
@@ -94,6 +119,7 @@ 
 			enable-method = "psci";
 			next-level-cache = <&A53_L2>;
 			clocks = <&scpi_dvfs 1>;
+			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
 		};
 
 		A53_2: cpu@102 {
@@ -103,6 +129,7 @@ 
 			enable-method = "psci";
 			next-level-cache = <&A53_L2>;
 			clocks = <&scpi_dvfs 1>;
+			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
 		};
 
 		A53_3: cpu@103 {
@@ -112,6 +139,7 @@ 
 			enable-method = "psci";
 			next-level-cache = <&A53_L2>;
 			clocks = <&scpi_dvfs 1>;
+			cpu-idle-states = <&CPU_SLEEP_0 &CLUSTER_SLEEP_0>;
 		};
 
 		A57_L2: l2-cache0 {

[v3] arm64: dts: juno: Add idle-states to device tree

Commit Message

Comments

Patch