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

   1 Index: linux-2.6.21gum/drivers/cpufreq/Kconfig
   2 ===================================================================
   3 --- linux-2.6.21gum.orig/drivers/cpufreq/Kconfig
   4 +++ linux-2.6.21gum/drivers/cpufreq/Kconfig
   5 @@ -52,7 +52,7 @@ config CPU_FREQ_STAT_DETAILS
   6
   7  choice
   8         prompt "Default CPUFreq governor"
   9 -       default CPU_FREQ_DEFAULT_GOV_USERSPACE if CPU_FREQ_SA1100 || CPU_FREQ_SA1110
  10 +       default CPU_FREQ_DEFAULT_GOV_USERSPACE if CPU_FREQ_SA1100 || CPU_FREQ_SA1110 || CPU_FREQ_PXA
  11         default CPU_FREQ_DEFAULT_GOV_PERFORMANCE
  12         help
  13           This option sets which CPUFreq governor shall be loaded at
  14 @@ -75,6 +75,14 @@ config CPU_FREQ_DEFAULT_GOV_USERSPACE
  15           program shall be able to set the CPU dynamically without having
  16           to enable the userspace governor manually.
  17
  18 +config CPU_FREQ_DEFAULT_GOV_ONDEMAND
  19 +       bool "ondemand"
  20 +       select CPU_FREQ_GOV_ONDEMAND
  21 +       help
  22 +         Use the CPUFreq governor 'ondemand' as default.  This sets
  23 +         the frequency dynamically based on CPU load, throttling up
  24 +         and down as necessary.
  25 +
  26  endchoice
  27
  28  config CPU_FREQ_GOV_PERFORMANCE
  29 Index: linux-2.6.21gum/include/linux/cpufreq.h
  30 ===================================================================
  31 --- linux-2.6.21gum.orig/include/linux/cpufreq.h
  32 +++ linux-2.6.21gum/include/linux/cpufreq.h
  33 @@ -286,6 +286,9 @@ extern struct cpufreq_governor cpufreq_g
  34  #elif defined(CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE)
  35  extern struct cpufreq_governor cpufreq_gov_userspace;
  36  #define CPUFREQ_DEFAULT_GOVERNOR       &cpufreq_gov_userspace
  37 +#elif defined(CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND)
  38 +extern struct cpufreq_governor cpufreq_gov_dbs;
  39 +#define CPUFREQ_DEFAULT_GOVERNOR       &cpufreq_gov_dbs;
  40  #endif
  41
  42