[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/os/linux/linux-3.4.x/drivers/cpufreq/Kconfig b/ap/os/linux/linux-3.4.x/drivers/cpufreq/Kconfig
new file mode 100644
index 0000000..57f96eb
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/cpufreq/Kconfig
@@ -0,0 +1,225 @@
+menu "CPU Frequency scaling"
+
+config CPU_FREQ
+ bool "CPU Frequency scaling"
+ help
+ CPU Frequency scaling allows you to change the clock speed of
+ CPUs on the fly. This is a nice method to save power, because
+ the lower the CPU clock speed, the less power the CPU consumes.
+
+ Note that this driver doesn't automatically change the CPU
+ clock speed, you need to either enable a dynamic cpufreq governor
+ (see below) after boot, or use a userspace tool.
+
+ For details, take a look at <file:Documentation/cpu-freq>.
+
+ If in doubt, say N.
+
+if CPU_FREQ
+
+config CPU_FREQ_TABLE
+ tristate
+
+config CPU_FREQ_STAT
+ tristate "CPU frequency translation statistics"
+ select CPU_FREQ_TABLE
+ default y
+ help
+ This driver exports CPU frequency statistics information through sysfs
+ file system.
+
+ To compile this driver as a module, choose M here: the
+ module will be called cpufreq_stats.
+
+ If in doubt, say N.
+
+config CPU_FREQ_STAT_DETAILS
+ bool "CPU frequency translation statistics details"
+ depends on CPU_FREQ_STAT
+ help
+ This will show detail CPU frequency translation table in sysfs file
+ system.
+
+ If in doubt, say N.
+
+choice
+ prompt "Default CPUFreq governor"
+ default CPU_FREQ_DEFAULT_GOV_USERSPACE if CPU_FREQ_SA1100 || CPU_FREQ_SA1110
+ default CPU_FREQ_DEFAULT_GOV_PERFORMANCE
+ help
+ This option sets which CPUFreq governor shall be loaded at
+ startup. If in doubt, select 'performance'.
+
+config CPU_FREQ_DEFAULT_GOV_PERFORMANCE
+ bool "performance"
+ select CPU_FREQ_GOV_PERFORMANCE
+ help
+ Use the CPUFreq governor 'performance' as default. This sets
+ the frequency statically to the highest frequency supported by
+ the CPU.
+
+config CPU_FREQ_DEFAULT_GOV_POWERSAVE
+ bool "powersave"
+ depends on EXPERT
+ select CPU_FREQ_GOV_POWERSAVE
+ help
+ Use the CPUFreq governor 'powersave' as default. This sets
+ the frequency statically to the lowest frequency supported by
+ the CPU.
+
+config CPU_FREQ_DEFAULT_GOV_USERSPACE
+ bool "userspace"
+ select CPU_FREQ_GOV_USERSPACE
+ help
+ Use the CPUFreq governor 'userspace' as default. This allows
+ you to set the CPU frequency manually or when a 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
+ select CPU_FREQ_GOV_PERFORMANCE
+ help
+ Use the CPUFreq governor 'ondemand' as default. This allows
+ you to get a full dynamic frequency capable system by simply
+ loading your cpufreq low-level hardware driver.
+ Be aware that not all cpufreq drivers support the ondemand
+ governor. If unsure have a look at the help section of the
+ driver. Fallback governor will be the performance governor.
+
+config CPU_FREQ_DEFAULT_GOV_CONSERVATIVE
+ bool "conservative"
+ select CPU_FREQ_GOV_CONSERVATIVE
+ select CPU_FREQ_GOV_PERFORMANCE
+ help
+ Use the CPUFreq governor 'conservative' as default. This allows
+ you to get a full dynamic frequency capable system by simply
+ loading your cpufreq low-level hardware driver.
+ Be aware that not all cpufreq drivers support the conservative
+ governor. If unsure have a look at the help section of the
+ driver. Fallback governor will be the performance governor.
+
+config CPU_FREQ_DEFAULT_GOV_INTERACTIVE
+ bool "interactive"
+ select CPU_FREQ_GOV_INTERACTIVE
+ help
+ Use the CPUFreq governor 'interactive' as default. This allows
+ you to get a full dynamic cpu frequency capable system by simply
+ loading your cpufreq low-level hardware driver, using the
+ 'interactive' governor for latency-sensitive workloads.
+
+endchoice
+
+config CPU_FREQ_GOV_PERFORMANCE
+ tristate "'performance' governor"
+ help
+ This cpufreq governor sets the frequency statically to the
+ highest available CPU frequency.
+
+ To compile this driver as a module, choose M here: the
+ module will be called cpufreq_performance.
+
+ If in doubt, say Y.
+
+config CPU_FREQ_GOV_POWERSAVE
+ tristate "'powersave' governor"
+ help
+ This cpufreq governor sets the frequency statically to the
+ lowest available CPU frequency.
+
+ To compile this driver as a module, choose M here: the
+ module will be called cpufreq_powersave.
+
+ If in doubt, say Y.
+
+config CPU_FREQ_GOV_USERSPACE
+ tristate "'userspace' governor for userspace frequency scaling"
+ help
+ Enable this cpufreq governor when you either want to set the
+ CPU frequency manually or when a userspace program shall
+ be able to set the CPU dynamically, like on LART
+ <http://www.lartmaker.nl/>.
+
+ To compile this driver as a module, choose M here: the
+ module will be called cpufreq_userspace.
+
+ For details, take a look at <file:Documentation/cpu-freq/>.
+
+ If in doubt, say Y.
+
+config CPU_FREQ_GOV_ONDEMAND
+ tristate "'ondemand' cpufreq policy governor"
+ select CPU_FREQ_TABLE
+ help
+ 'ondemand' - This driver adds a dynamic cpufreq policy governor.
+ The governor does a periodic polling and
+ changes frequency based on the CPU utilization.
+ The support for this governor depends on CPU capability to
+ do fast frequency switching (i.e, very low latency frequency
+ transitions).
+
+ To compile this driver as a module, choose M here: the
+ module will be called cpufreq_ondemand.
+
+ For details, take a look at linux/Documentation/cpu-freq.
+
+ If in doubt, say N.
+
+config CPU_FREQ_GOV_INTERACTIVE
+ tristate "'interactive' cpufreq policy governor"
+ help
+ 'interactive' - This driver adds a dynamic cpufreq policy governor
+ designed for latency-sensitive workloads.
+
+ This governor attempts to reduce the latency of clock
+ increases so that the system is more responsive to
+ interactive workloads.
+
+ To compile this driver as a module, choose M here: the
+ module will be called cpufreq_interactive.
+
+ For details, take a look at linux/Documentation/cpu-freq.
+
+ If in doubt, say N.
+
+config CPU_FREQ_GOV_CONSERVATIVE
+ tristate "'conservative' cpufreq governor"
+ depends on CPU_FREQ
+ help
+ 'conservative' - this driver is rather similar to the 'ondemand'
+ governor both in its source code and its purpose, the difference is
+ its optimisation for better suitability in a battery powered
+ environment. The frequency is gracefully increased and decreased
+ rather than jumping to 100% when speed is required.
+
+ If you have a desktop machine then you should really be considering
+ the 'ondemand' governor instead, however if you are using a laptop,
+ PDA or even an AMD64 based computer (due to the unacceptable
+ step-by-step latency issues between the minimum and maximum frequency
+ transitions in the CPU) you will probably want to use this governor.
+
+ To compile this driver as a module, choose M here: the
+ module will be called cpufreq_conservative.
+
+ For details, take a look at linux/Documentation/cpu-freq.
+
+ If in doubt, say N.
+
+menu "x86 CPU frequency scaling drivers"
+depends on X86
+source "drivers/cpufreq/Kconfig.x86"
+endmenu
+
+menu "ARM CPU frequency scaling drivers"
+depends on ARM
+source "drivers/cpufreq/Kconfig.arm"
+endmenu
+
+menu "PowerPC CPU frequency scaling drivers"
+depends on PPC32 || PPC64
+source "drivers/cpufreq/Kconfig.powerpc"
+endmenu
+
+endif
+endmenu