summaryrefslogtreecommitdiff
path: root/arch/arm64/boot
diff options
context:
space:
mode:
authorHoward Chen <howard.chen@linaro.org>2015-06-04 15:13:37 +0800
committerMatthias Brugger <matthias.bgg@gmail.com>2015-07-06 18:01:46 +0200
commitad4df7a53a148e2e9d917e254b4e9ec9fc860ac9 (patch)
treead906b3952277cb4a1b5fa2b24d6cb491450cba5 /arch/arm64/boot
parentc010ff530a04ca63d120e1fad0f4268302c5e845 (diff)
ARM: dts: mt8173: support arm64 cpuidle-dt
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> Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Diffstat (limited to 'arch/arm64/boot')
-rw-r--r--arch/arm64/boot/dts/mediatek/mt8173.dtsi18
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
index 0696f8fa8fc2..359b8b6c235a 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
@@ -51,6 +51,8 @@
device_type = "cpu";
compatible = "arm,cortex-a53";
reg = <0x000>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_SLEEP_0>;
};
cpu1: cpu@1 {
@@ -58,6 +60,7 @@
compatible = "arm,cortex-a53";
reg = <0x001>;
enable-method = "psci";
+ cpu-idle-states = <&CPU_SLEEP_0>;
};
cpu2: cpu@100 {
@@ -65,6 +68,7 @@
compatible = "arm,cortex-a57";
reg = <0x100>;
enable-method = "psci";
+ cpu-idle-states = <&CPU_SLEEP_0>;
};
cpu3: cpu@101 {
@@ -72,6 +76,20 @@
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";
+ local-timer-stop;
+ entry-latency-us = <639>;
+ exit-latency-us = <680>;
+ min-residency-us = <1088>;
+ arm,psci-suspend-param = <0x0010000>;
+ };
};
};