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authorMichael Hennerich <michael.hennerich@analog.com>2008-05-07 11:41:26 +0800
committerBryan Wu <cooloney@kernel.org>2008-05-07 11:41:26 +0800
commit14b03204c8060d036b04cbb18bbd6f6f311f4fed (patch)
treee4ac8f5e2a74fc63dd811aac9e349ac890670134 /arch/blackfin/Kconfig
parent19d6d7d53c8ff809182a1f092d2c6918146414e9 (diff)
[Blackfin] arch: Functional power management support: Add CPU and platform voltage scaling support
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/Kconfig')
-rw-r--r--arch/blackfin/Kconfig11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 7f1ab802537f..c8def1cf1758 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -967,6 +967,17 @@ menu "CPU Frequency scaling"
source "drivers/cpufreq/Kconfig"
+config CPU_VOLTAGE
+ bool "CPU Voltage scaling"
+ depends on EXPERIMENTAL
+ depends on CPU_FREQ
+ default n
+ help
+ Say Y here if you want CPU voltage scaling according to the CPU frequency.
+ This option violates the PLL BYPASS recommendation in the Blackfin Processor
+ manuals. There is a theoretical risk that during VDDINT transitions
+ the PLL may unlock.
+
endmenu
source "net/Kconfig"