From: James Liao <jamesjj.liao@mediatek.com>
To: Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Matthias Brugger <matthias.bgg@gmail.com>
Cc: <devicetree@vger.kernel.org>, <srv_heupstream@mediatek.com>,
<linux-mediatek@lists.infradead.org>,
<linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
James Liao <jamesjj.liao@mediatek.com>
Subject: [PATCH v2] arm64: dts: mt8183: Enable CPU idle-states
Date: Tue, 14 Jan 2020 18:11:13 +0800 [thread overview]
Message-ID: <1578996673-8140-1-git-send-email-jamesjj.liao@mediatek.com> (raw)
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
next reply other threads:[~2020-01-14 10:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-14 10:11 James Liao [this message]
2020-01-14 11:14 ` [PATCH v2] arm64: dts: mt8183: Enable CPU idle-states Matthias Brugger
2020-01-15 5:32 ` James Liao
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