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arm64: dts: berlin4ct: support cpuidle-dt 

This patch adds an idle-states node to describe the berlin4ct idle
states and also adds references to the idle-states node in all CPU
nodes. After this patch cpuidle is enabled.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
This commit is contained in:
Jisheng Zhang 2015-11-30 21:41:58 +08:00 committed by Sebastian Hesselbarth
parent 5fbb15316f
commit 1544f99c0a
1 changed files with 16 additions and 0 deletions
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16
arch/arm64/boot/dts/marvell/berlin4ct.dtsi
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@ -68,6 +68,7 @@
device_type = "cpu";
reg = <0x0>;
enable-method = "psci";
cpu-idle-states = <&CPU_SLEEP_0>;
};
cpu1: cpu@1 {
@ -75,6 +76,7 @@
device_type = "cpu";
reg = <0x1>;
enable-method = "psci";
cpu-idle-states = <&CPU_SLEEP_0>;
};
cpu2: cpu@2 {
@ -82,6 +84,7 @@
device_type = "cpu";
reg = <0x2>;
enable-method = "psci";
cpu-idle-states = <&CPU_SLEEP_0>;
};
cpu3: cpu@3 {
@ -89,6 +92,19 @@
device_type = "cpu";
reg = <0x3>;
enable-method = "psci";
cpu-idle-states = <&CPU_SLEEP_0>;
};
idle-states {
entry-method = "psci";
CPU_SLEEP_0: cpu-sleep-0 {
compatible = "arm,idle-state";
local-timer-stop;
arm,psci-suspend-param = <0x0010000>;
entry-latency-us = <75>;
exit-latency-us = <155>;
min-residency-us = <1000>;
};
};
};