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From: "Peng Fan (OSS)" <peng.fan@oss.nxp.com>
To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
	shawnguo@kernel.org, s.hauer@pengutronix.de
Cc: kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, Peng Fan <peng.fan@nxp.com>
Subject: [PATCH 4/5] arm64: dts: imx93: add cpuidle node
Date: Wed, 10 May 2023 16:31:52 +0800	[thread overview]
Message-ID: <20230510083153.3769140-5-peng.fan@oss.nxp.com> (raw)
In-Reply-To: <20230510083153.3769140-1-peng.fan@oss.nxp.com>

From: Peng Fan <peng.fan@nxp.com>

Add cpuidle node to support cpu idle.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx93.dtsi | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx93.dtsi b/arch/arm64/boot/dts/freescale/imx93.dtsi
index 5c5652ae4ee0..dc444ca394af 100644
--- a/arch/arm64/boot/dts/freescale/imx93.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx93.dtsi
@@ -46,12 +46,27 @@ cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
 
+		idle-states {
+			entry-method = "psci";
+
+			cpu_pd_wait: cpu-pd-wait {
+				compatible = "arm,idle-state";
+				arm,psci-suspend-param = <0x0010033>;
+				local-timer-stop;
+				entry-latency-us = <10000>;
+				exit-latency-us = <7000>;
+				min-residency-us = <27000>;
+				wakeup-latency-us = <15000>;
+			};
+		};
+
 		A55_0: cpu@0 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a55";
 			reg = <0x0>;
 			enable-method = "psci";
 			#cooling-cells = <2>;
+			cpu-idle-states = <&cpu_pd_wait>;
 		};
 
 		A55_1: cpu@100 {
@@ -60,6 +75,7 @@ A55_1: cpu@100 {
 			reg = <0x100>;
 			enable-method = "psci";
 			#cooling-cells = <2>;
+			cpu-idle-states = <&cpu_pd_wait>;
 		};
 
 	};
-- 
2.37.1


  parent reply	other threads:[~2023-05-10  8:27 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-10  8:31 [PATCH 0/5] arm64: dts: imx93: add nodes and minor update Peng Fan (OSS)
2023-05-10  8:31 ` [PATCH 1/5] arm64: dts: imx93: add watchdog node Peng Fan (OSS)
2023-05-10  8:31 ` [PATCH 2/5] arm64: dts: imx93: add ocotp node Peng Fan (OSS)
2023-05-10  8:31 ` [PATCH 3/5] arm64: dts: imx93: reorder device nodes Peng Fan (OSS)
2023-05-10  8:31 ` Peng Fan (OSS) [this message]
2023-05-10  8:31 ` [PATCH 5/5] arm64: dts: imx93-11x11-evk: enable wdog3 Peng Fan (OSS)
2023-05-15  3:23 ` [PATCH 0/5] arm64: dts: imx93: add nodes and minor update Shawn Guo

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