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From: "Peng Fan (OSS)" <peng.fan@oss.nxp.com>
To: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	 Conor Dooley <conor+dt@kernel.org>,
	Shawn Guo <shawnguo@kernel.org>,
	 Sascha Hauer <s.hauer@pengutronix.de>,
	 Pengutronix Kernel Team <kernel@pengutronix.de>,
	 Fabio Estevam <festevam@gmail.com>
Cc: devicetree@vger.kernel.org, imx@lists.linux.dev,
	 linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,  Peng Fan <peng.fan@nxp.com>
Subject: [PATCH v2 5/7] arm64: dts: freescale: imx95: enable A55 cpuidle
Date: Tue, 03 Sep 2024 15:17:50 +0800	[thread overview]
Message-ID: <20240903-imx95-dts-new-v2-5-8ed795d61358@nxp.com> (raw)
In-Reply-To: <20240903-imx95-dts-new-v2-0-8ed795d61358@nxp.com>

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

Add cpuidle node and enable cpuidle for A55.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx95.dtsi | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx95.dtsi b/arch/arm64/boot/dts/freescale/imx95.dtsi
index d031b9548aaf..a7e411f1daa6 100644
--- a/arch/arm64/boot/dts/freescale/imx95.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx95.dtsi
@@ -22,12 +22,27 @@ 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>;
 			power-domains = <&scmi_perf IMX95_PERF_A55>;
 			power-domain-names = "perf";
 			i-cache-size = <32768>;
@@ -45,6 +60,7 @@ A55_1: cpu@100 {
 			reg = <0x100>;
 			enable-method = "psci";
 			#cooling-cells = <2>;
+			cpu-idle-states = <&cpu_pd_wait>;
 			power-domains = <&scmi_perf IMX95_PERF_A55>;
 			power-domain-names = "perf";
 			i-cache-size = <32768>;
@@ -62,6 +78,7 @@ A55_2: cpu@200 {
 			reg = <0x200>;
 			enable-method = "psci";
 			#cooling-cells = <2>;
+			cpu-idle-states = <&cpu_pd_wait>;
 			power-domains = <&scmi_perf IMX95_PERF_A55>;
 			power-domain-names = "perf";
 			i-cache-size = <32768>;
@@ -79,6 +96,7 @@ A55_3: cpu@300 {
 			reg = <0x300>;
 			enable-method = "psci";
 			#cooling-cells = <2>;
+			cpu-idle-states = <&cpu_pd_wait>;
 			power-domains = <&scmi_perf IMX95_PERF_A55>;
 			power-domain-names = "perf";
 			i-cache-size = <32768>;
@@ -98,6 +116,7 @@ A55_4: cpu@400 {
 			power-domain-names = "perf";
 			enable-method = "psci";
 			#cooling-cells = <2>;
+			cpu-idle-states = <&cpu_pd_wait>;
 			i-cache-size = <32768>;
 			i-cache-line-size = <64>;
 			i-cache-sets = <128>;
@@ -115,6 +134,7 @@ A55_5: cpu@500 {
 			power-domain-names = "perf";
 			enable-method = "psci";
 			#cooling-cells = <2>;
+			cpu-idle-states = <&cpu_pd_wait>;
 			i-cache-size = <32768>;
 			i-cache-line-size = <64>;
 			i-cache-sets = <128>;

-- 
2.37.1


  parent reply	other threads:[~2024-09-03  7:09 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-09-03  7:17 [PATCH v2 0/7] arm64: dts: freescale: imx95: add various nodes Peng Fan (OSS)
2024-09-03  7:17 ` [PATCH v2 1/7] arm64: dts: freescale: imx95: set max-rx-timeout-ms Peng Fan (OSS)
2024-10-08 12:51   ` Shawn Guo
2024-10-10 10:31     ` Peng Fan
2024-09-03  7:17 ` [PATCH v2 2/7] arm64: dts: freescale: imx95: add bbm/misc/syspower scmi nodes Peng Fan (OSS)
2024-09-05 12:18   ` Alexander Stein
2024-09-03  7:17 ` [PATCH v2 3/7] arm64: dts: freescale: imx95: update a55 thermal trip points Peng Fan (OSS)
2024-09-05 12:24   ` Alexander Stein
2024-09-06  8:19     ` Peng Fan
2024-09-03  7:17 ` [PATCH v2 4/7] arm64: dts: freescale: imx95: add anamix temperature thermal zone and cooling node Peng Fan (OSS)
2024-10-08 12:56   ` Shawn Guo
2024-09-03  7:17 ` Peng Fan (OSS) [this message]
2024-09-03  7:17 ` [PATCH v2 6/7] arm64: dts: freescale: imx95-19x19-evk: add nxp,ctrl-ids property Peng Fan (OSS)
2024-10-08 13:01   ` Shawn Guo
2024-10-10 10:32     ` Peng Fan
2024-09-03  7:17 ` [PATCH v2 7/7] arm64: dts: freescale: imx95-19x19-evk: add lpi2c[5,6] and sub-nodes Peng Fan (OSS)
2024-09-05 12:26   ` [PATCH v2 7/7] arm64: dts: freescale: imx95-19x19-evk: add lpi2c[5, 6] " Alexander Stein
2024-09-06  8:17     ` Peng Fan
2024-09-30  9:16 ` [PATCH v2 0/7] arm64: dts: freescale: imx95: add various nodes Peng Fan
2024-10-08 12:55 ` Shawn Guo

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