linux-kernel - [PATCH] ARM: dts: mt8173: support arm64 cpuidle-dt

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1427772277-2414-1-git-send-email-howard.chen@linaro.org>
Date:	Tue, 31 Mar 2015 11:24:37 +0800
From:	Howard Chen <howard.chen@...aro.org>
To:	Matthias Brugger <matthias.bgg@...il.com>
Cc:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Howard Chen <howard.chen@...aro.org>,
	Eddie Huang <eddie.huang@...iatek.com>,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org,
	srv_heupstream@...iatek.com, Sascha Hauer <kernel@...gutronix.de>
Subject: [PATCH] ARM: dts: mt8173: support arm64 cpuidle-dt

add an idle-states node to describe the mt8173 cpu idle
add a reference to the idle-states node in each CPU node

Signed-off-by: Howard Chen <howard.chen@...aro.org>
---
 arch/arm64/boot/dts/mediatek/mt8173.dtsi | 30 ++++++++++++++++++++++++++----
 1 file changed, 26 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
index 8554ec3..96dff1e 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
@@ -48,6 +48,8 @@
 			device_type = "cpu";
 			compatible = "arm,cortex-a53";
 			reg = <0x000>;
+			enable-method = "psci";
+			cpu-idle-states = <&CPU_SLEEP_0_0 &CLUSTER_SLEEP_0>;
 		};
 
 		cpu1: cpu@1 {
@@ -55,6 +57,7 @@
 			compatible = "arm,cortex-a53";
 			reg = <0x001>;
 			enable-method = "psci";
+			cpu-idle-states = <&CPU_SLEEP_0_0 &CLUSTER_SLEEP_0>;
 		};
 
 		cpu2: cpu@100 {
@@ -62,6 +65,7 @@
 			compatible = "arm,cortex-a57";
 			reg = <0x100>;
 			enable-method = "psci";
+			cpu-idle-states = <&CPU_SLEEP_0_0 &CLUSTER_SLEEP_0>;
 		};
 
 		cpu3: cpu@101 {
@@ -69,15 +73,33 @@
 			compatible = "arm,cortex-a57";
 			reg = <0x101>;
 			enable-method = "psci";
+			cpu-idle-states = <&CPU_SLEEP_0_0 &CLUSTER_SLEEP_0>;
 		};
+
+		idle-states {
+			entry-method = "arm,psci-0.2";
+
+			CPU_SLEEP_0_0: cpu-sleep-0-0 {
+				compatible = "arm,idle-state";
+				arm,psci-suspend-param = <0x0010000>;
+				entry-latency-us = <600>;
+				exit-latency-us = <600>;
+				min-residency-us = <1200>;
+			};
+
+			CLUSTER_SLEEP_0: cluster-sleep-0 {
+				compatible = "arm,idle-state";
+				arm,psci-suspend-param = <0x1010000>;
+				entry-latency-us = <800>;
+				exit-latency-us = <1000>;
+				min-residency-us = <2000>;
+				wakeup-latency-us = <1000>;
+			};
 	};
 
 	psci {
-		compatible = "arm,psci";
+		compatible = "arm,psci-0.2";
 		method = "smc";
-		cpu_suspend   = <0x84000001>;
-		cpu_off	      = <0x84000002>;
-		cpu_on	      = <0x84000003>;
 	};
 
 	uart_clk: dummy26m {
-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/