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| author | Victor Gallardo <vgallardo@apm.com> | 2010-10-08 10:25:27 +0000 |
|---|---|---|
| committer | Josh Boyer <jwboyer@linux.vnet.ibm.com> | 2010-11-29 10:05:06 -0500 |
| commit | d164f6d4f9108126f69ba2963cf6fb7ef4ba9232 (patch) | |
| tree | 9f0f97180ee4f7486974c657588e8ee65074fcc2 /arch/powerpc/Kconfig | |
| parent | 46f5221049bb46b0188aad6b6dfab5dbc778be22 (diff) | |
| download | lwn-d164f6d4f9108126f69ba2963cf6fb7ef4ba9232.tar.gz lwn-d164f6d4f9108126f69ba2963cf6fb7ef4ba9232.zip | |
powerpc/4xx: Add suspend and idle support
Add suspend/resume support for 4xx compatible CPUs.
See /sys/power/state for available power states configured in.
Add two different idle states (idle-wait and idle-doze) controlled via sysfs.
Default is idle-wait.
cat /sys/devices/system/cpu/cpu0/idle
[wait] doze
To save additional power, use idle-doze.
echo doze > /sys/devices/system/cpu/cpu0/idle
cat /sys/devices/system/cpu/cpu0/idle
wait [doze]
Signed-off-by: Victor Gallardo <vgallardo@apm.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Diffstat (limited to 'arch/powerpc/Kconfig')
| -rw-r--r-- | arch/powerpc/Kconfig | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 06d742c3fbcf..e16b4988f825 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -212,7 +212,7 @@ config ARCH_HIBERNATION_POSSIBLE config ARCH_SUSPEND_POSSIBLE def_bool y depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \ - PPC_85xx || PPC_86xx || PPC_PSERIES + PPC_85xx || PPC_86xx || PPC_PSERIES || 44x || 40x config PPC_DCR_NATIVE bool @@ -598,13 +598,11 @@ config EXTRA_TARGETS If unsure, leave blank -if !44x || BROKEN config ARCH_WANTS_FREEZER_CONTROL def_bool y depends on ADB_PMU source kernel/power/Kconfig -endif config SECCOMP bool "Enable seccomp to safely compute untrusted bytecode" @@ -685,6 +683,15 @@ config FSL_PMC Freescale MPC85xx/MPC86xx power management controller support (suspend/resume). For MPC83xx see platforms/83xx/suspend.c +config PPC4xx_CPM + bool + default y + depends on SUSPEND && (44x || 40x) + help + PPC4xx Clock Power Management (CPM) support (suspend/resume). + It also enables support for two different idle states (idle-wait + and idle-doze). + config 4xx_SOC bool |