[PATCH 1/3] [CPUFREQ] make ACPI P-state cpufreq drivers depend on CONFIG_CPU_FREQ

Alex Chiang
2009-11-17T22:11:18Z

In menuconfig, if you do not select:

Power management and ACPI options ->
CPU Frequency scaling -->
CPU Frequency scaling

You do not get a chance to select the various CPUFreq processor drivers
either.

So, it seems reasonable to make these processor drivers:

- powernow-k8
- powernow-k7
- acpi-cpufreq

depend upon CONFIG_CPU_FREQ. This change allows us to be smarter with
#ifdefs and symbols in generic ACPI header files later on.

Signed-off-by: Alex Chiang <achiang@hp.com>
---

arch/x86/kernel/cpu/cpufreq/Kconfig | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/cpu/cpufreq/Kconfig b/arch/x86/kernel/cpu/cpufreq/Kconfig
index f138c6c..ca40a9f 100644
--- a/arch/x86/kernel/cpu/cpufreq/Kconfig
+++ b/arch/x86/kernel/cpu/cpufreq/Kconfig
@@ -13,7 +13,7 @@ comment "CPUFreq processor drivers"
config X86_ACPI_CPUFREQ
tristate "ACPI Processor P-States driver"
select CPU_FREQ_TABLE
- depends on ACPI_PROCESSOR
+ depends on ACPI_PROCESSOR && CPU_FREQ
help
This driver adds a CPUFreq driver which utilizes the ACPI
Processor Performance States.
@@ -69,7 +69,7 @@ config X86_POWERNOW_K6
config X86_POWERNOW_K7
tristate "AMD Mobile Athlon/Duron PowerNow!"
select CPU_FREQ_TABLE
- depends on X86_32
+ depends on X86_32 && CPU_FREQ
help
This adds the CPUFreq driver for mobile AMD K7 mobile processors.

@@ -87,7 +87,7 @@ config X86_POWERNOW_K7_ACPI
config X86_POWERNOW_K8
tristate "AMD Opteron/Athlon64 PowerNow!"
select CPU_FREQ_TABLE
- depends on ACPI && ACPI_PROCESSOR
+ depends on ACPI && ACPI_PROCESSOR && CPU_FREQ
help
This adds the CPUFreq driver for K8/K10 Opteron/Athlon64 processors.