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From: Joseph Lo <josephl@nvidia.com>
To: Thierry Reding <thierry.reding@gmail.com>,
	Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-tegra@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Joseph Lo <josephl@nvidia.com>
Subject: [PATCH V2 4/6] arm64: dts: tegra210: add CPU idle states properties
Date: Mon, 28 Jan 2019 17:18:13 +0800	[thread overview]
Message-ID: <20190128091815.7040-5-josephl@nvidia.com> (raw)
In-Reply-To: <20190128091815.7040-1-josephl@nvidia.com>

Add idle states properties for generic ARM CPU idle driver. This
includes a C7 state which is the power down state of CPU cores.

Signed-off-by: Joseph Lo <josephl@nvidia.com>
---
v2:
 * add entry-latency-us and exit-latency-us properties

Note:
This dt patch depends on the DT changes in below series.
http://patchwork.ozlabs.org/project/linux-tegra/list/?series=84380
---
 arch/arm64/boot/dts/nvidia/tegra210.dtsi | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
index 2b387364afc3..75534692604c 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
@@ -1318,24 +1318,43 @@
 				 <&dfll>;
 			clock-names = "cpu_g", "pll_x", "pll_p", "dfll";
 			clock-latency = <300000>;
+			cpu-idle-states = <&C7>;
 		};
 
 		cpu@1 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a57";
 			reg = <1>;
+			cpu-idle-states = <&C7>;
 		};
 
 		cpu@2 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a57";
 			reg = <2>;
+			cpu-idle-states = <&C7>;
 		};
 
 		cpu@3 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a57";
 			reg = <3>;
+			cpu-idle-states = <&C7>;
+		};
+
+		idle-states {
+			entry-method = "psci";
+
+			C7: c7 {
+				compatible = "arm,idle-state";
+				arm,psci-suspend-param = <0x40000007>;
+				entry-latency-us = <250>;
+				exit-latency-us = <100>;
+				min-residency-us = <1000>;
+				wakeup-latency-us = <130>;
+				idle-state-name = "c7-cpu-powergated";
+				status = "disabled";
+			};
 		};
 	};
 
-- 
2.20.1

WARNING: multiple messages have this Message-ID (diff)
From: Joseph Lo <josephl@nvidia.com>
To: Thierry Reding <thierry.reding@gmail.com>,
	Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-tegra@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Joseph Lo <josephl@nvidia.com>
Subject: [PATCH V2 4/6] arm64: dts: tegra210: add CPU idle states properties
Date: Mon, 28 Jan 2019 17:18:13 +0800	[thread overview]
Message-ID: <20190128091815.7040-5-josephl@nvidia.com> (raw)
In-Reply-To: <20190128091815.7040-1-josephl@nvidia.com>

Add idle states properties for generic ARM CPU idle driver. This
includes a C7 state which is the power down state of CPU cores.

Signed-off-by: Joseph Lo <josephl@nvidia.com>
---
v2:
 * add entry-latency-us and exit-latency-us properties

Note:
This dt patch depends on the DT changes in below series.
http://patchwork.ozlabs.org/project/linux-tegra/list/?series=84380
---
 arch/arm64/boot/dts/nvidia/tegra210.dtsi | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
index 2b387364afc3..75534692604c 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
@@ -1318,24 +1318,43 @@
 				 <&dfll>;
 			clock-names = "cpu_g", "pll_x", "pll_p", "dfll";
 			clock-latency = <300000>;
+			cpu-idle-states = <&C7>;
 		};
 
 		cpu@1 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a57";
 			reg = <1>;
+			cpu-idle-states = <&C7>;
 		};
 
 		cpu@2 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a57";
 			reg = <2>;
+			cpu-idle-states = <&C7>;
 		};
 
 		cpu@3 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a57";
 			reg = <3>;
+			cpu-idle-states = <&C7>;
+		};
+
+		idle-states {
+			entry-method = "psci";
+
+			C7: c7 {
+				compatible = "arm,idle-state";
+				arm,psci-suspend-param = <0x40000007>;
+				entry-latency-us = <250>;
+				exit-latency-us = <100>;
+				min-residency-us = <1000>;
+				wakeup-latency-us = <130>;
+				idle-state-name = "c7-cpu-powergated";
+				status = "disabled";
+			};
 		};
 	};
 
-- 
2.20.1


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  parent reply	other threads:[~2019-01-28  9:18 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-28  9:18 [PATCH V2 0/6] Add CPUidle support for Tegra210 Joseph Lo
2019-01-28  9:18 ` Joseph Lo
2019-01-28  9:18 ` [PATCH V2 1/6] dt-bindings: timer: add Tegra210 timer Joseph Lo
2019-01-28  9:18   ` Joseph Lo
2019-01-28  9:18   ` Joseph Lo
2019-01-28  9:18 ` [PATCH V2 2/6] clocksource: tegra: add Tegra210 timer driver Joseph Lo
2019-01-28  9:18   ` Joseph Lo
2019-01-28  9:18   ` Joseph Lo
2019-01-28 13:00   ` Daniel Lezcano
2019-01-28 13:00     ` Daniel Lezcano
2019-01-29  3:07     ` Joseph Lo
2019-01-29  3:07       ` Joseph Lo
2019-01-29  3:07       ` Joseph Lo
2019-01-28 15:09   ` Thierry Reding
2019-01-28 15:09     ` Thierry Reding
2019-01-29  3:35     ` Joseph Lo
2019-01-29  3:35       ` Joseph Lo
2019-01-29  3:35       ` Joseph Lo
2019-01-29  9:16       ` Jon Hunter
2019-01-29  9:16         ` Jon Hunter
2019-01-29  9:16         ` Jon Hunter
2019-01-29  8:41     ` Peter De Schrijver
2019-01-29  8:41       ` Peter De Schrijver
2019-01-29  8:41       ` Peter De Schrijver
2019-01-29 10:29       ` Thierry Reding
2019-01-29 10:29         ` Thierry Reding
2019-01-30  2:40         ` Joseph Lo
2019-01-30  2:40           ` Joseph Lo
2019-01-30  2:40           ` Joseph Lo
2019-01-31  9:01           ` Peter De Schrijver
2019-01-31  9:01             ` Peter De Schrijver
2019-01-31  9:01             ` Peter De Schrijver
2019-01-28  9:18 ` [PATCH V2 3/6] arm64: dts: tegra210: fix timer node Joseph Lo
2019-01-28  9:18   ` Joseph Lo
2019-01-28  9:18 ` Joseph Lo [this message]
2019-01-28  9:18   ` [PATCH V2 4/6] arm64: dts: tegra210: add CPU idle states properties Joseph Lo
2019-01-28  9:18 ` [PATCH V2 5/6] arm64: dts: tegra210-p2180: Enable CPU idle support Joseph Lo
2019-01-28  9:18   ` Joseph Lo
2019-01-28  9:18 ` [PATCH V2 6/6] arm64: dts: tegra210-smaug: " Joseph Lo
2019-01-28  9:18   ` Joseph Lo

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