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| author | Sudeep Holla <sudeep.holla@arm.com> | 2016-11-16 17:31:31 +0000 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2016-12-02 17:28:17 +0100 |
| commit | 909e481e2467f202b97d42beef246e8829416a85 (patch) | |
| tree | a6aeb258e0d0954d9193a6be0a6fc6163df3c3f6 | |
| parent | 4c9456df8849204435c4de1849120b916975d75d (diff) | |
| download | scripts-gdb-909e481e2467f202b97d42beef246e8829416a85.tar.gz | |
arm64: dts: juno: fix cluster sleep state entry latency on all SoC versions
The core and the cluster sleep state entry latencies can't be same as
cluster sleep involves more work compared to core level e.g. shared
cache maintenance.
Experiments have shown on an average about 100us more latency for the
cluster sleep state compared to the core level sleep. This patch fixes
the entry latency for the cluster sleep state.
Fixes: 28e10a8f3a03 ("arm64: dts: juno: Add idle-states to device tree")
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: "Jon Medhurst (Tixy)" <tixy@linaro.org>
Reviewed-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| -rw-r--r-- | arch/arm64/boot/dts/arm/juno-r1.dts | 2 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/arm/juno-r2.dts | 2 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/arm/juno.dts | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm64/boot/dts/arm/juno-r1.dts b/arch/arm64/boot/dts/arm/juno-r1.dts index 123a58b29cbdc1..f0b857d6d73cc9 100644 --- a/arch/arm64/boot/dts/arm/juno-r1.dts +++ b/arch/arm64/boot/dts/arm/juno-r1.dts @@ -76,7 +76,7 @@ compatible = "arm,idle-state"; arm,psci-suspend-param = <0x1010000>; local-timer-stop; - entry-latency-us = <300>; + entry-latency-us = <400>; exit-latency-us = <1200>; min-residency-us = <2500>; }; diff --git a/arch/arm64/boot/dts/arm/juno-r2.dts b/arch/arm64/boot/dts/arm/juno-r2.dts index 007be826efcea9..26aaa6a7670f10 100644 --- a/arch/arm64/boot/dts/arm/juno-r2.dts +++ b/arch/arm64/boot/dts/arm/juno-r2.dts @@ -76,7 +76,7 @@ compatible = "arm,idle-state"; arm,psci-suspend-param = <0x1010000>; local-timer-stop; - entry-latency-us = <300>; + entry-latency-us = <400>; exit-latency-us = <1200>; min-residency-us = <2500>; }; diff --git a/arch/arm64/boot/dts/arm/juno.dts b/arch/arm64/boot/dts/arm/juno.dts index a7270eff6939bc..6e154d948a80b9 100644 --- a/arch/arm64/boot/dts/arm/juno.dts +++ b/arch/arm64/boot/dts/arm/juno.dts @@ -76,7 +76,7 @@ compatible = "arm,idle-state"; arm,psci-suspend-param = <0x1010000>; local-timer-stop; - entry-latency-us = <300>; + entry-latency-us = <400>; exit-latency-us = <1200>; min-residency-us = <2500>; }; |