From fa60be6e3f9362bd841e26b9366f0db7b761a042 Mon Sep 17 00:00:00 2001 From: J Keerthy Date: Wed, 25 Apr 2012 11:14:31 +0530 Subject: ARM: OMAP2+: Voltage: Move the omap_volt_data structure to plat Move the omap_volt_data structure from mach-omap2/ directory to arch/arm/plat-omap/include/plat/ so that it is accessible from both mach-omap2 and drivers directories. Signed-off-by: J Keerthy Reviewed-by: Kevin Hilman Signed-off-by: Kevin Hilman --- arch/arm/plat-omap/include/plat/voltage.h | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) (limited to 'arch/arm/plat-omap') diff --git a/arch/arm/plat-omap/include/plat/voltage.h b/arch/arm/plat-omap/include/plat/voltage.h index 0a6a482ec014..5be4d5def427 100644 --- a/arch/arm/plat-omap/include/plat/voltage.h +++ b/arch/arm/plat-omap/include/plat/voltage.h @@ -11,10 +11,29 @@ #ifndef __ARCH_ARM_OMAP_VOLTAGE_H #define __ARCH_ARM_OMAP_VOLTAGE_H +/** + * struct omap_volt_data - Omap voltage specific data. + * @voltage_nominal: The possible voltage value in uV + * @sr_efuse_offs: The offset of the efuse register(from system + * control module base address) from where to read + * the n-target value for the smartreflex module. + * @sr_errminlimit: Error min limit value for smartreflex. This value + * differs at differnet opp and thus is linked + * with voltage. + * @vp_errorgain: Error gain value for the voltage processor. This + * field also differs according to the voltage/opp. + */ +struct omap_volt_data { + u32 volt_nominal; + u32 sr_efuse_offs; + u8 sr_errminlimit; + u8 vp_errgain; +}; struct voltagedomain; struct voltagedomain *voltdm_lookup(const char *name); int voltdm_scale(struct voltagedomain *voltdm, unsigned long target_volt); unsigned long voltdm_get_voltage(struct voltagedomain *voltdm); - +struct omap_volt_data *omap_voltage_get_voltdata(struct voltagedomain *voltdm, + unsigned long volt); #endif -- cgit v1.2.1 From 7fb149ffe357d6ad672cf9325181530b4c478a81 Mon Sep 17 00:00:00 2001 From: Jean Pihet Date: Tue, 24 Apr 2012 11:38:50 +0530 Subject: 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 Signed-off-by: J Keerthy Reviewed-by: Kevin Hilman Signed-off-by: Kevin Hilman --- arch/arm/plat-omap/Kconfig | 45 ++++++++++++++++++++++++++++++--------------- 1 file changed, 30 insertions(+), 15 deletions(-) (limited to 'arch/arm/plat-omap') 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_/smartreflex/autocomp, - where X is mpu or core for OMAP3. + /debug/smartreflex/sr_/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 -- cgit v1.2.1 From 21ff63ad131218048525fbd37d065ce61f03bcbd Mon Sep 17 00:00:00 2001 From: Jean Pihet Date: Wed, 25 Apr 2012 16:43:17 +0530 Subject: ARM: OMAP: SmartReflex: Move smartreflex driver to drivers/ After a clean-up of the interfaces the OMAP Smartreflex IP driver is now a generic driver. Move it to drivers/power/avs/. The build is controlled by the following Kconfig options: . CONFIG_POWER_AVS: general knob for Adaptive Voltage Scaling support, . CONFIG_POWER_AVS_OMAP: AVS(Adaptive Voltage Scaling) support on OMAP containing the version 1 or version 2 of the SmartReflex IP, . CONFIG_POWER_AVS_OMAP_CLASS3: Class 3 implementation of Smartreflex. Signed-off-by: Jean Pihet Signed-off-by: J Keerthy Acked-by: Rafael J. Wysocki Reviewed-by: Kevin Hilman Signed-off-by: Kevin Hilman --- arch/arm/plat-omap/Kconfig | 22 +++------------------- 1 file changed, 3 insertions(+), 19 deletions(-) (limited to 'arch/arm/plat-omap') diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig index bba384dfbcf6..816dec062f3c 100644 --- a/arch/arm/plat-omap/Kconfig +++ b/arch/arm/plat-omap/Kconfig @@ -45,26 +45,12 @@ config OMAP_DEBUG_LEDS depends on OMAP_DEBUG_DEVICES default y if LEDS_CLASS -menuconfig POWER_AVS - tristate "Adaptive Voltage Scaling class support" - help - 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 - config POWER_AVS_OMAP bool "AVS(Adaptive Voltage Scaling) support for OMAP IP versions 1&2" - depends on (ARCH_OMAP3 || ARCH_OMAP4) && PM + depends on POWER_AVS && (ARCH_OMAP3 || ARCH_OMAP4) && PM help - Say Y to enable AVS support on OMAP containing the version 1 or + Say Y to enable AVS(Adaptive Voltage Scaling) + 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 @@ -89,8 +75,6 @@ config POWER_AVS_OMAP_CLASS3 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 -- cgit v1.2.1