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Subject[PATCH v2] arm64: dts: mt8183: Enable CPU idle-states
Date
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..a022325 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 = <&MCDI_CPU &MCDI_CLUSTER>;
};

cpu1: cpu@1 {
@@ -81,6 +82,7 @@
reg = <0x001>;
enable-method = "psci";
capacity-dmips-mhz = <741>;
+ cpu-idle-states = <&MCDI_CPU &MCDI_CLUSTER>;
};

cpu2: cpu@2 {
@@ -89,6 +91,7 @@
reg = <0x002>;
enable-method = "psci";
capacity-dmips-mhz = <741>;
+ cpu-idle-states = <&MCDI_CPU &MCDI_CLUSTER>;
};

cpu3: cpu@3 {
@@ -97,6 +100,7 @@
reg = <0x003>;
enable-method = "psci";
capacity-dmips-mhz = <741>;
+ cpu-idle-states = <&MCDI_CPU &MCDI_CLUSTER>;
};

cpu4: cpu@100 {
@@ -105,6 +109,7 @@
reg = <0x100>;
enable-method = "psci";
capacity-dmips-mhz = <1024>;
+ cpu-idle-states = <&MCDI_CPU &MCDI_CLUSTER>;
};

cpu5: cpu@101 {
@@ -113,6 +118,7 @@
reg = <0x101>;
enable-method = "psci";
capacity-dmips-mhz = <1024>;
+ cpu-idle-states = <&MCDI_CPU &MCDI_CLUSTER>;
};

cpu6: cpu@102 {
@@ -121,6 +127,7 @@
reg = <0x102>;
enable-method = "psci";
capacity-dmips-mhz = <1024>;
+ cpu-idle-states = <&MCDI_CPU &MCDI_CLUSTER>;
};

cpu7: cpu@103 {
@@ -129,6 +136,29 @@
reg = <0x103>;
enable-method = "psci";
capacity-dmips-mhz = <1024>;
+ cpu-idle-states = <&MCDI_CPU &MCDI_CLUSTER>;
+ };
+
+ idle-states {
+ entry-method = "arm,psci";
+
+ MCDI_CPU: mcdi-cpu {
+ compatible = "arm,idle-state";
+ local-timer-stop;
+ arm,psci-suspend-param = <0x00010001>;
+ entry-latency-us = <200>;
+ exit-latency-us = <200>;
+ min-residency-us = <800>;
+ };
+
+ MCDI_CLUSTER: mcdi-cluster {
+ 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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