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* [PATCH v3] arm64: dts: mt8183: Enable CPU idle-states
@ 2020-01-15  5:42 James Liao
  2020-01-15 16:34 ` Matthias Brugger
  0 siblings, 1 reply; 2+ messages in thread
From: James Liao @ 2020-01-15  5:42 UTC (permalink / raw)
  To: Rob Herring, Mark Rutland, Matthias Brugger
  Cc: devicetree, srv_heupstream, James Liao, linux-kernel,
	linux-mediatek, linux-arm-kernel

Enable mcdi-cpu and mcdi-cluster on MT8183 CPUs.

Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
---
This patch bases on v5.5-rc6, adds idle-states for MT8183 CPUs.

 arch/arm64/boot/dts/mediatek/mt8183.dtsi | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
index 10b3247..1007a13 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
@@ -73,6 +73,7 @@
 			reg = <0x000>;
 			enable-method = "psci";
 			capacity-dmips-mhz = <741>;
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
 		};
 
 		cpu1: cpu@1 {
@@ -81,6 +82,7 @@
 			reg = <0x001>;
 			enable-method = "psci";
 			capacity-dmips-mhz = <741>;
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
 		};
 
 		cpu2: cpu@2 {
@@ -89,6 +91,7 @@
 			reg = <0x002>;
 			enable-method = "psci";
 			capacity-dmips-mhz = <741>;
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
 		};
 
 		cpu3: cpu@3 {
@@ -97,6 +100,7 @@
 			reg = <0x003>;
 			enable-method = "psci";
 			capacity-dmips-mhz = <741>;
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
 		};
 
 		cpu4: cpu@100 {
@@ -105,6 +109,7 @@
 			reg = <0x100>;
 			enable-method = "psci";
 			capacity-dmips-mhz = <1024>;
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
 		};
 
 		cpu5: cpu@101 {
@@ -113,6 +118,7 @@
 			reg = <0x101>;
 			enable-method = "psci";
 			capacity-dmips-mhz = <1024>;
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
 		};
 
 		cpu6: cpu@102 {
@@ -121,6 +127,7 @@
 			reg = <0x102>;
 			enable-method = "psci";
 			capacity-dmips-mhz = <1024>;
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
 		};
 
 		cpu7: cpu@103 {
@@ -129,6 +136,29 @@
 			reg = <0x103>;
 			enable-method = "psci";
 			capacity-dmips-mhz = <1024>;
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
+		};
+
+		idle-states {
+			entry-method = "psci";
+
+			CPU_SLEEP: cpu-sleep {
+				compatible = "arm,idle-state";
+				local-timer-stop;
+				arm,psci-suspend-param = <0x00010001>;
+				entry-latency-us = <200>;
+				exit-latency-us = <200>;
+				min-residency-us = <800>;
+			};
+
+			CLUSTER_SLEEP: cluster-sleep {
+				compatible = "arm,idle-state";
+				local-timer-stop;
+				arm,psci-suspend-param = <0x01010001>;
+				entry-latency-us = <250>;
+				exit-latency-us = <400>;
+				min-residency-us = <1300>;
+			};
 		};
 	};
 
-- 
1.9.1
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2020-01-15  5:42 [PATCH v3] arm64: dts: mt8183: Enable CPU idle-states James Liao
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