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linux
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>
authored by
Jean Pihet
and committed by
Kevin Hilman
7fb149ff
308d1bd0
+35
-19
+3
-2
arch/arm/mach-omap2/Makefile
+3
-2
arch/arm/mach-omap2/Makefile
···
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obj-$(CONFIG_ARCH_OMAP4) += pm44xx.o omap-mpuss-lowpower.o \
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cpuidle44xx.o
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obj-$(CONFIG_PM_DEBUG) += pm-debug.o
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obj-$(CONFIG_OMAP_SMARTREFLEX) += sr_device.o smartreflex.o
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obj-$(CONFIG_OMAP_SMARTREFLEX_CLASS3) += smartreflex-class3.o
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obj-$(CONFIG_POWER_AVS_OMAP) += sr_device.o smartreflex.o
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obj-$(CONFIG_POWER_AVS_OMAP_CLASS3) += smartreflex-class3.o
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AFLAGS_sleep24xx.o :=-Wa,-march=armv6
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AFLAGS_sleep34xx.o :=-Wa,-march=armv7-a$(plus_sec)
+1
-1
arch/arm/mach-omap2/pm.h
+1
-1
arch/arm/mach-omap2/pm.h
···
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static inline void enable_omap3630_toggle_l2_on_restore(void) { }
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#endif /* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */
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-
#ifdef CONFIG_OMAP_SMARTREFLEX
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#ifdef CONFIG_POWER_AVS_OMAP
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extern int omap_devinit_smartreflex(void);
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extern void omap_enable_smartreflex_on_init(void);
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#else
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-15
arch/arm/plat-omap/Kconfig
+30
-15
arch/arm/plat-omap/Kconfig
···
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depends on OMAP_DEBUG_DEVICES
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default y if LEDS_CLASS
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config OMAP_SMARTREFLEX
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bool "SmartReflex support"
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menuconfig POWER_AVS
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tristate "Adaptive Voltage Scaling class support"
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help
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AVS(Adaptive Voltage Scaling) is a power management technique which
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finely controls the operating voltage of a device in order to optimize
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(i.e. reduce) its power consumption.
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At a given operating point the voltage is adapted depending on
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static factors (chip manufacturing process) and dynamic factors
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(temperature depending performance).
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AVS is also called SmartReflex on OMAP devices.
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Say Y here to enable Adaptive Voltage Scaling class support.
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if POWER_AVS
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config POWER_AVS_OMAP
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bool "AVS(Adaptive Voltage Scaling) support for OMAP IP versions 1&2"
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depends on (ARCH_OMAP3 || ARCH_OMAP4) && PM
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help
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Say Y if you want to enable SmartReflex.
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SmartReflex can perform continuous dynamic voltage
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scaling around the nominal operating point voltage
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according to silicon characteristics and operating
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conditions. Enabling SmartReflex reduces power
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consumption.
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Say Y to enable AVS support on OMAP containing the version 1 or
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version 2 of the SmartReflex IP.
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V1 is the 65nm version used in OMAP3430.
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V2 is the update for the 45nm version of the IP used in OMAP3630
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and OMAP4430
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Please note, that by default SmartReflex is only
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initialized. To enable the automatic voltage
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compensation for vdd mpu and vdd core from user space,
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initialized and not enabled. To enable the automatic voltage
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compensation for vdd mpu and vdd core from user space,
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user must write 1 to
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/debug/voltage/vdd_<X>/smartreflex/autocomp,
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where X is mpu or core for OMAP3.
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/debug/smartreflex/sr_<X>/autocomp,
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where X is mpu_iva or core for OMAP3.
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Optionally autocompensation can be enabled in the kernel
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by default during system init via the enable_on_init flag
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which an be passed as platform data to the smartreflex driver.
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config OMAP_SMARTREFLEX_CLASS3
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config POWER_AVS_OMAP_CLASS3
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bool "Class 3 mode of Smartreflex Implementation"
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depends on OMAP_SMARTREFLEX && TWL4030_CORE
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depends on POWER_AVS_OMAP && TWL4030_CORE
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help
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Say Y to enable Class 3 implementation of Smartreflex
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Class 3 implementation of Smartreflex employs continuous hardware
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voltage calibration.
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endif # POWER_AVS
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config OMAP_RESET_CLOCKS
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bool "Reset unused clocks during boot"
+1
-1
include/linux/power/smartreflex.h
+1
-1
include/linux/power/smartreflex.h