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openwrt-xburst/target/linux/pxa/patches-2.6.21/016-cpufreq-ondemand-by-default.patch
juhosg ba2e2fa7be [pxa] refresh 2.6.21 patches
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@14454 3c298f89-4303-0410-b956-a3cf2f4a3e73
2009-02-08 19:36:13 +00:00

39 lines
1.3 KiB
Diff

--- a/drivers/cpufreq/Kconfig
+++ b/drivers/cpufreq/Kconfig
@@ -52,7 +52,7 @@ config CPU_FREQ_STAT_DETAILS
choice
prompt "Default CPUFreq governor"
- default CPU_FREQ_DEFAULT_GOV_USERSPACE if CPU_FREQ_SA1100 || CPU_FREQ_SA1110
+ default CPU_FREQ_DEFAULT_GOV_USERSPACE if CPU_FREQ_SA1100 || CPU_FREQ_SA1110 || CPU_FREQ_PXA
default CPU_FREQ_DEFAULT_GOV_PERFORMANCE
help
This option sets which CPUFreq governor shall be loaded at
@@ -75,6 +75,14 @@ config CPU_FREQ_DEFAULT_GOV_USERSPACE
program shall be able to set the CPU dynamically without having
to enable the userspace governor manually.
+config CPU_FREQ_DEFAULT_GOV_ONDEMAND
+ bool "ondemand"
+ select CPU_FREQ_GOV_ONDEMAND
+ help
+ Use the CPUFreq governor 'ondemand' as default. This sets
+ the frequency dynamically based on CPU load, throttling up
+ and down as necessary.
+
endchoice
config CPU_FREQ_GOV_PERFORMANCE
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -286,6 +286,9 @@ extern struct cpufreq_governor cpufreq_g
#elif defined(CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE)
extern struct cpufreq_governor cpufreq_gov_userspace;
#define CPUFREQ_DEFAULT_GOVERNOR &cpufreq_gov_userspace
+#elif defined(CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND)
+extern struct cpufreq_governor cpufreq_gov_dbs;
+#define CPUFREQ_DEFAULT_GOVERNOR &cpufreq_gov_dbs;
#endif