openwrt-xburst/target/linux/pxa/patches-2.6.21/016-cpufreq-ondemand-by-default.patch

Index: linux-2.6.21.7/drivers/cpufreq/Kconfig
===================================================================
--- linux-2.6.21.7.orig/drivers/cpufreq/Kconfig
+++ linux-2.6.21.7/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
Index: linux-2.6.21.7/include/linux/cpufreq.h
===================================================================
--- linux-2.6.21.7.orig/include/linux/cpufreq.h
+++ linux-2.6.21.7/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