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-rw-r--r--target/linux/pxa/patches-2.6.21/016-cpufreq-ondemand-by-default.patch42
1 files changed, 42 insertions, 0 deletions
diff --git a/target/linux/pxa/patches-2.6.21/016-cpufreq-ondemand-by-default.patch b/target/linux/pxa/patches-2.6.21/016-cpufreq-ondemand-by-default.patch
new file mode 100644
index 0000000000..bb5443cdef
--- /dev/null
+++ b/target/linux/pxa/patches-2.6.21/016-cpufreq-ondemand-by-default.patch
@@ -0,0 +1,42 @@
+Index: linux-2.6.21gum/drivers/cpufreq/Kconfig
+===================================================================
+--- linux-2.6.21gum.orig/drivers/cpufreq/Kconfig
++++ linux-2.6.21gum/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-2.6.21gum/include/linux/cpufreq.h
+===================================================================
+--- linux-2.6.21gum.orig/include/linux/cpufreq.h
++++ linux-2.6.21gum/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
+
+