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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-08 13:10:57 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-08 13:10:57 -0800
commiteb59c505f8a5906ad2e053d14fab50eb8574fd6f (patch)
treec6e875adc12b481b916e847e8f80b8881a0fb02c /drivers/devfreq/Kconfig
parent1619ed8f60959829d070d8f39cd2f8ca0e7135ce (diff)
parentc233523b3d392e530033a7587d7970dc62a02361 (diff)
downloadlinux-eb59c505f8a5906ad2e053d14fab50eb8574fd6f.tar.bz2
Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
* 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits) PM / Hibernate: Implement compat_ioctl for /dev/snapshot PM / Freezer: fix return value of freezable_schedule_timeout_killable() PM / shmobile: Allow the A4R domain to be turned off at run time PM / input / touchscreen: Make st1232 use device PM QoS constraints PM / QoS: Introduce dev_pm_qos_add_ancestor_request() PM / shmobile: Remove the stay_on flag from SH7372's PM domains PM / shmobile: Don't include SH7372's INTCS in syscore suspend/resume PM / shmobile: Add support for the sh7372 A4S power domain / sleep mode PM: Drop generic_subsys_pm_ops PM / Sleep: Remove forward-only callbacks from AMBA bus type PM / Sleep: Remove forward-only callbacks from platform bus type PM: Run the driver callback directly if the subsystem one is not there PM / Sleep: Make pm_op() and pm_noirq_op() return callback pointers PM/Devfreq: Add Exynos4-bus device DVFS driver for Exynos4210/4212/4412. PM / Sleep: Merge internal functions in generic_ops.c PM / Sleep: Simplify generic system suspend callbacks PM / Hibernate: Remove deprecated hibernation snapshot ioctls PM / Sleep: Fix freezer failures due to racy usermodehelper_is_disabled() ARM: S3C64XX: Implement basic power domain support PM / shmobile: Use common always on power domain governor ... Fix up trivial conflict in fs/xfs/xfs_buf.c due to removal of unused XBT_FORCE_SLEEP bit
Diffstat (limited to 'drivers/devfreq/Kconfig')
-rw-r--r--drivers/devfreq/Kconfig13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/devfreq/Kconfig b/drivers/devfreq/Kconfig
index 8f0491037080..464fa2147dfb 100644
--- a/drivers/devfreq/Kconfig
+++ b/drivers/devfreq/Kconfig
@@ -65,4 +65,17 @@ config DEVFREQ_GOV_USERSPACE
comment "DEVFREQ Drivers"
+config ARM_EXYNOS4_BUS_DEVFREQ
+ bool "ARM Exynos4210/4212/4412 Memory Bus DEVFREQ Driver"
+ depends on CPU_EXYNOS4210 || CPU_EXYNOS4212 || CPU_EXYNOS4412
+ select ARCH_HAS_OPP
+ select DEVFREQ_GOV_SIMPLE_ONDEMAND
+ help
+ This adds the DEVFREQ driver for Exynos4210 memory bus (vdd_int)
+ and Exynos4212/4412 memory interface and bus (vdd_mif + vdd_int).
+ It reads PPMU counters of memory controllers and adjusts
+ the operating frequencies and voltages with OPP support.
+ To operate with optimal voltages, ASV support is required
+ (CONFIG_EXYNOS_ASV).
+
endif # PM_DEVFREQ