Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs

[~andy/linux] / drivers / devfreq / Kconfig

diff --git a/drivers/devfreq/Kconfig b/drivers/devfreq/Kconfig
index 8f0491037080df38856b76ec73db77cf18d3320f..464fa2147dfb47c9be87bafd6fb17a96858d658d 100644 (file)
--- 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