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-rw-r--r--drivers/devfreq/Kconfig15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/devfreq/Kconfig b/drivers/devfreq/Kconfig
index 4de78c5..cedda8f 100644
--- a/drivers/devfreq/Kconfig
+++ b/drivers/devfreq/Kconfig
@@ -66,6 +66,21 @@ config DEVFREQ_GOV_USERSPACE
comment "DEVFREQ Drivers"
+config ARM_EXYNOS_BUS_DEVFREQ
+ bool "ARM EXYNOS Generic Memory Bus DEVFREQ Driver"
+ depends on ARCH_EXYNOS
+ select DEVFREQ_GOV_SIMPLE_ONDEMAND
+ select DEVFREQ_EVENT_EXYNOS_PPMU
+ select PM_DEVFREQ_EVENT
+ select PM_OPP
+ help
+ This adds the common DEVFREQ driver for Exynos Memory bus. Exynos
+ Memory bus has one more group of memory bus (e.g, MIF and INT block).
+ Each memory bus group could contain many memoby bus block. It reads
+ PPMU counters of memory controllers by using DEVFREQ-event device
+ and adjusts the operating frequencies and voltages with OPP support.
+ This does not yet operate with optimal voltages.
+
config ARM_EXYNOS4_BUS_DEVFREQ
bool "ARM Exynos4210/4212/4412 Memory Bus DEVFREQ Driver"
depends on (CPU_EXYNOS4210 || SOC_EXYNOS4212 || SOC_EXYNOS4412) && !ARCH_MULTIPLATFORM
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