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* [PATCH v2] ARM: dts: mt8173: support arm64 cpuidle-dt
@ 2015-04-07  8:05 ` Howard Chen
  0 siblings, 0 replies; 5+ messages in thread
From: Howard Chen @ 2015-04-07  8:05 UTC (permalink / raw)
  To: Matthias Brugger
  Cc: Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala,
	Catalin Marinas, Will Deacon, Howard Chen, Eddie Huang,
	devicetree, linux-arm-kernel, linux-kernel, linux-mediatek,
	srv_heupstream, Sascha Hauer

This patch adds an idle-states node to describe the mt8173 idle states and
also adds references to the idle-states node in all CPU nodes.

Signed-off-by: Howard Chen <howard.chen@linaro.org>
---
 arch/arm64/boot/dts/mediatek/mt8173.dtsi | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
index 8554ec3..0d31a34 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>;
 		};
 
 		cpu1: cpu@1 {
@@ -55,6 +57,7 @@
 			compatible = "arm,cortex-a53";
 			reg = <0x001>;
 			enable-method = "psci";
+			cpu-idle-states = <&CPU_SLEEP_0>;
 		};
 
 		cpu2: cpu@100 {
@@ -62,6 +65,7 @@
 			compatible = "arm,cortex-a57";
 			reg = <0x100>;
 			enable-method = "psci";
+			cpu-idle-states = <&CPU_SLEEP_0>;
 		};
 
 		cpu3: cpu@101 {
@@ -69,6 +73,19 @@
 			compatible = "arm,cortex-a57";
 			reg = <0x101>;
 			enable-method = "psci";
+			cpu-idle-states = <&CPU_SLEEP_0>;
+		};
+
+		idle-states {
+			entry-method = "arm,psci";
+
+			CPU_SLEEP_0: cpu-sleep-0 {
+				compatible = "arm,idle-state";
+				arm,psci-suspend-param = <0x0010000>;
+				entry-latency-us = <639>;
+				exit-latency-us = <328>;
+				min-residency-us = <1088>;
+			};
 		};
 	};
 
-- 
1.9.1


^ permalink raw reply related	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2015-04-08 10:54 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2015-04-07  8:05 [PATCH v2] ARM: dts: mt8173: support arm64 cpuidle-dt Howard Chen
2015-04-07  8:05 ` Howard Chen
2015-04-08 10:54 ` Lorenzo Pieralisi
2015-04-08 10:54   ` Lorenzo Pieralisi
2015-04-08 10:54   ` Lorenzo Pieralisi

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