diff options
| author |   Jean Pihet <j-pihet@ti.com> | 2012-04-24 11:38:50 +0530 |
|---|---|---|
| committer |   Kevin Hilman <khilman@ti.com> | 2012-05-31 16:03:45 -0700 |
| commit | 7fb149ffe357d6ad672cf9325181530b4c478a81 (patch) | |
| tree | 66c71ad6a275a6a63e0625af22de6cca58e41219 /arch/arm/plat-omap/Kconfig | |
| parent | ARM: OMAP2+: SmartReflex: Create per-opp debugfs node for errminlimit (diff) | |
| download | linux-dev-7fb149ffe357d6ad672cf9325181530b4c478a81.tar.xz linux-dev-7fb149ffe357d6ad672cf9325181530b4c478a81.zip | |
ARM: OMAP2+: SmartReflex: add POWER_AVS Kconfig options
Add a Kconfig menu (POWER_AVS) and rename the Kconfig options
for the OMAP SmartReflex implementation:
CONFIG_OMAP_SMARTREFLEX renames to CONFIG_POWER_AVS_OMAP
CONFIG_OMAP_SMARTREFLEX_CLASS3 renames to CONFIG_POWER_AVS_OMAP_CLASS3
This change makes the SmartReflex implementation ready for the move
to drivers/.
Signed-off-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: J Keerthy <j-keerthy@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Diffstat (limited to 'arch/arm/plat-omap/Kconfig')
| -rw-r--r-- | arch/arm/plat-omap/Kconfig | 45 |
1 files changed, 30 insertions, 15 deletions
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig index ad95c7a5d009..bba384dfbcf6 100644 --- a/arch/arm/plat-omap/Kconfig +++ b/arch/arm/plat-omap/Kconfig @@ -45,37 +45,52 @@ config OMAP_DEBUG_LEDS depends on OMAP_DEBUG_DEVICES default y if LEDS_CLASS -config OMAP_SMARTREFLEX - bool "SmartReflex support" - depends on (ARCH_OMAP3 || ARCH_OMAP4) && PM +menuconfig POWER_AVS + tristate "Adaptive Voltage Scaling class support" help - Say Y if you want to enable SmartReflex. + AVS(Adaptive Voltage Scaling) is a power management technique which + finely controls the operating voltage of a device in order to optimize + (i.e. reduce) its power consumption. + At a given operating point the voltage is adapted depending on + static factors (chip manufacturing process) and dynamic factors + (temperature depending performance). + AVS is also called SmartReflex on OMAP devices. + + Say Y here to enable Adaptive Voltage Scaling class support. + +if POWER_AVS - SmartReflex can perform continuous dynamic voltage - scaling around the nominal operating point voltage - according to silicon characteristics and operating - conditions. Enabling SmartReflex reduces power - consumption. +config POWER_AVS_OMAP + bool "AVS(Adaptive Voltage Scaling) support for OMAP IP versions 1&2" + depends on (ARCH_OMAP3 || ARCH_OMAP4) && PM + help + Say Y to enable AVS support on OMAP containing the version 1 or + version 2 of the SmartReflex IP. + V1 is the 65nm version used in OMAP3430. + V2 is the update for the 45nm version of the IP used in OMAP3630 + and OMAP4430 Please note, that by default SmartReflex is only - initialized. To enable the automatic voltage - compensation for vdd mpu and vdd core from user space, + initialized and not enabled. To enable the automatic voltage + compensation for vdd mpu and vdd core from user space, user must write 1 to - /debug/voltage/vdd_<X>/smartreflex/autocomp, - where X is mpu or core for OMAP3. + /debug/smartreflex/sr_<X>/autocomp, + where X is mpu_iva or core for OMAP3. Optionally autocompensation can be enabled in the kernel by default during system init via the enable_on_init flag which an be passed as platform data to the smartreflex driver. -config OMAP_SMARTREFLEX_CLASS3 +config POWER_AVS_OMAP_CLASS3 bool "Class 3 mode of Smartreflex Implementation" - depends on OMAP_SMARTREFLEX && TWL4030_CORE + depends on POWER_AVS_OMAP && TWL4030_CORE help Say Y to enable Class 3 implementation of Smartreflex Class 3 implementation of Smartreflex employs continuous hardware voltage calibration. +endif # POWER_AVS + config OMAP_RESET_CLOCKS bool "Reset unused clocks during boot" depends on ARCH_OMAP |