cpufreq : Add intelliminmax Governor

intelliminmax (intellimm) governor is designed to work with the newer SOCs with fixed voltage rails (ie MSM8974+ SOCs). It is designed to work within those fixed voltage ranges in order to maximize battery performance while creating a smooth UI operations. Copyright 2014 Paul Reioux <aka faux123> Signed-off-by: Paul Reioux <reioux@gmail.com> WIP: Intellimm: remove unused code and change tblmap algorithm tblmap: add power-save frequencies for the first 5 entries Signed-off-by: Paul Reioux <reioux@gmail.com> WIP: intellimm: more tweaks and table clean up Signed-off-by: Paul Reioux <reioux@gmail.com> WIP: intellimm: more tweaks Signed-off-by: Paul Reioux <reioux@gmail.com> WIP: intellimm: clean up derpy logic Signed-off-by: Paul Reioux <reioux@gmail.com> WIP: intellimm: final clean up and algorithm tweaks Signed-off-by: Paul Reioux <reioux@gmail.com> WIP: intellimm: finalizing part 2 Signed-off-by: Paul Reioux <reioux@gmail.com> WIP: intellimm: finalizing part 3 add back burst for smoother UI Signed-off-by: Paul Reioux <reioux@gmail.com> intellimm: fix div by zero derp Signed-off-by: Paul Reioux <reioux@gmail.com>

Author: yank555-lu

arch/arm/configs/cm_msm8974_sec_defconfig

@@ -138,6 +138,7 @@ CONFIG_CPU_FREQ_GOV_INTELLIDEMAND=y
 CONFIG_CPU_FREQ_GOV_INTELLIACTIVE=y
 CONFIG_CPU_FREQ_GOV_ARTERACTIVE=y
 CONFIG_CPU_FREQ_GOV_ONDEMANDPLUS=y
+CONFIG_CPU_FREQ_GOV_INTELLIMM=y
 CONFIG_CPU_BOOST=y
 
 #Enable CPUFREQ LIMIT.

arch/arm/configs/msm8974_sec_defconfig

@@ -138,6 +138,7 @@ CONFIG_CPU_FREQ_GOV_INTELLIDEMAND=y
 CONFIG_CPU_FREQ_GOV_INTELLIACTIVE=y
 CONFIG_CPU_FREQ_GOV_ARTERACTIVE=y
 CONFIG_CPU_FREQ_GOV_ONDEMANDPLUS=y
+CONFIG_CPU_FREQ_GOV_INTELLIMM=y
 CONFIG_CPU_BOOST=y
 
 #Enable CPUFREQ LIMIT.

drivers/cpufreq/Kconfig

@@ -153,6 +153,13 @@ config CPU_FREQ_DEFAULT_GOV_ONDEMANDPLUS
  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_INTELLIMM
+bool "intelliminmax"
+select CPU_FREQ_GOV_INTELLIMM
+help
+ Use the CPUFreq governor 'intelliminmax' as default. This is
+ governor will use only 3 different frequencies, idle, UI and max
+
 endchoice
 
 config CPU_FREQ_GOV_PERFORMANCE
@@ -298,6 +305,16 @@ config CPU_FREQ_GOV_ONDEMANDPLUS
 
  If in doubt, say N.
 
+config CPU_FREQ_GOV_INTELLIMM
+tristate "'intelliminmax' cpufreq policy governor"
+help
+ 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.
+
 menu "x86 CPU frequency scaling drivers"
 depends on X86
 source "drivers/cpufreq/Kconfig.x86"

drivers/cpufreq/Makefile

@@ -17,6 +17,7 @@ obj-$(CONFIG_CPU_FREQ_GOV_INTELLIDEMAND)	+= cpufreq_intellidemand.o
 obj-$(CONFIG_CPU_FREQ_GOV_INTELLIACTIVE)+= cpufreq_intelliactive.o
 obj-$(CONFIG_CPU_FREQ_GOV_ARTERACTIVE)+= cpufreq_arteractive.o
 obj-$(CONFIG_CPU_FREQ_GOV_ONDEMANDPLUS)+= cpufreq_ondemandplus.o
+obj-$(CONFIG_CPU_FREQ_GOV_INTELLIMM)+= cpufreq_intellimm.o
 
 # CPUfreq cross-arch helpers
 obj-$(CONFIG_CPU_FREQ_TABLE)+= freq_table.o