[PATCH 5/5] s390/configs: Enable cpuidle driver on s390

[Mete Durlu <meted@linux.ibm.com>]

Enable cpuidle infrastructure, teo governor and s390 cpuidle driver by
default. They can be disabled via config options before compile or via
setting cpuidle.off kernel commandline option. When cpuidle.off=1 set,
given architecture's specific implementation is used as a fallback without
any governor or idle state support.

During runtime individual states of cpuidle driver can also be disabled
via sysfs attributes.

Ex:
echo 1 > /sys/devices/system/cpu<N>/cpuidle/state<M>/disable

Signed-off-by: Mete Durlu <meted@linux.ibm.com>
---
 arch/s390/configs/debug_defconfig | 2 ++
 arch/s390/configs/defconfig       | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/arch/s390/configs/debug_defconfig b/arch/s390/configs/debug_defconfig
index 730c90b4a876..39f2c56bd29d 100644
--- a/arch/s390/configs/debug_defconfig
+++ b/arch/s390/configs/debug_defconfig
@@ -29,6 +29,8 @@ CONFIG_CGROUP_PIDS=y
 CONFIG_CGROUP_RDMA=y
 CONFIG_CGROUP_FREEZER=y
 CONFIG_CGROUP_HUGETLB=y
+CONFIG_CPU_IDLE=y
+CONFIG_CPU_IDLE_GOV_TEO=y
 CONFIG_CPUSETS=y
 CONFIG_CGROUP_DEVICE=y
 CONFIG_CGROUP_CPUACCT=y
diff --git a/arch/s390/configs/defconfig b/arch/s390/configs/defconfig
index dd5fc1426c88..723ce48ce8d1 100644
--- a/arch/s390/configs/defconfig
+++ b/arch/s390/configs/defconfig
@@ -27,6 +27,8 @@ CONFIG_CGROUP_PIDS=y
 CONFIG_CGROUP_RDMA=y
 CONFIG_CGROUP_FREEZER=y
 CONFIG_CGROUP_HUGETLB=y
+CONFIG_CPU_IDLE=y
+CONFIG_CPU_IDLE_GOV_TEO=y
 CONFIG_CPUSETS=y
 CONFIG_CGROUP_DEVICE=y
 CONFIG_CGROUP_CPUACCT=y
-- 
2.54.0