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linux/drivers/power/avs/Kconfig

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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 <j-pihet@ti.com> Signed-off-by: J Keerthy <j-keerthy@ti.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Reviewed-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-04-25 11:13:17 +00:00
menuconfig POWER_AVS
ARM: OMAP2+: do not allow SmartReflex to be built as a module Disable the module option for POWER_AVS since this is currently not supported. This patch fixes these error in the case POWER_AVS is set to 'm': arch/arm/mach-omap2/built-in.o: In function `sr_class3_configure': arch/arm/mach-omap2/smartreflex-class3.c:43: undefined reference to `sr_configure_errgen' arch/arm/mach-omap2/built-in.o: In function `sr_class3_disable': arch/arm/mach-omap2/smartreflex-class3.c:33: undefined reference to `sr_disable_errgen' arch/arm/mach-omap2/smartreflex-class3.c:35: undefined reference to `sr_disable' arch/arm/mach-omap2/built-in.o: In function `sr_class3_enable': arch/arm/mach-omap2/smartreflex-class3.c:28: undefined reference to `sr_enable' arch/arm/mach-omap2/built-in.o: In function `sr_class3_init': arch/arm/mach-omap2/smartreflex-class3.c:59: undefined reference to `sr_register_class' Reported-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Jean Pihet <j-pihet@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com> [tony@atomide.com: updated to use relative paths for the build error] Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-06-28 16:55:38 +00:00
bool "Adaptive Voltage Scaling class support"
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 <j-pihet@ti.com> Signed-off-by: J Keerthy <j-keerthy@ti.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Reviewed-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-04-25 11:13:17 +00:00
help
AVS 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.
PM / AVS: rockchip-io: add driver handling Rockchip io domains IO domain voltages on some Rockchip SoCs are variable but need to be kept in sync between the regulators and the SoC using a special register. A specific example using rk3288: - If the regulator hooked up to a pin like SDMMC0_VDD is 3.3V then bit 7 of GRF_IO_VSEL needs to be 0. If the regulator hooked up to that same pin is 1.8V then bit 7 of GRF_IO_VSEL needs to be 1. Said another way, this driver simply handles keeping bits in the SoC's general register file (GRF) in sync with the actual value of a voltage hooked up to the pins. Note that this driver specifically doesn't include: - any logic for deciding what voltage we should set regulators to - any logic for deciding whether regulators (or internal SoC blocks) should have power or not have power If there were some other software that had the smarts of making decisions about regulators, it would work in conjunction with this driver. When that other software adjusted a regulator's voltage then this driver would handle telling the SoC about it. A good example is vqmmc for SD. In that case the dw_mmc driver simply is told about a regulator. It changes the regulator between 3.3V and 1.8V at the right time. This driver notices the change and makes sure that the SoC is on the same page. Signed-off-by: Heiko Stübner <heiko@sntech.de> Signed-off-by: Doug Anderson <dianders@chromium.org> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> [khilman: fix compiler warnings] Signed-off-by: Kevin Hilman <khilman@linaro.org>
2014-09-11 22:48:55 +00:00
config ROCKCHIP_IODOMAIN
tristate "Rockchip IO domain support"
PM / AVS: rockchip-io: depend on CONFIG_POWER_AVS The rockchip io-domain driver currently only depends on ARCH_ROCKCHIP itself. This makes it possible to select the power-domain driver, but not the POWER_AVS class and results in the iodomain-driver not getting build in this case. So add the additional dependency, which also results in the driver config option now being placed nicely into the AVS submenu. Fixes: 662a958638bd ("PM / AVS: rockchip-io: add driver handling Rockchip io domains") Signed-off-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-08-04 19:36:12 +00:00
depends on POWER_AVS && ARCH_ROCKCHIP && OF
PM / AVS: rockchip-io: add driver handling Rockchip io domains IO domain voltages on some Rockchip SoCs are variable but need to be kept in sync between the regulators and the SoC using a special register. A specific example using rk3288: - If the regulator hooked up to a pin like SDMMC0_VDD is 3.3V then bit 7 of GRF_IO_VSEL needs to be 0. If the regulator hooked up to that same pin is 1.8V then bit 7 of GRF_IO_VSEL needs to be 1. Said another way, this driver simply handles keeping bits in the SoC's general register file (GRF) in sync with the actual value of a voltage hooked up to the pins. Note that this driver specifically doesn't include: - any logic for deciding what voltage we should set regulators to - any logic for deciding whether regulators (or internal SoC blocks) should have power or not have power If there were some other software that had the smarts of making decisions about regulators, it would work in conjunction with this driver. When that other software adjusted a regulator's voltage then this driver would handle telling the SoC about it. A good example is vqmmc for SD. In that case the dw_mmc driver simply is told about a regulator. It changes the regulator between 3.3V and 1.8V at the right time. This driver notices the change and makes sure that the SoC is on the same page. Signed-off-by: Heiko Stübner <heiko@sntech.de> Signed-off-by: Doug Anderson <dianders@chromium.org> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> [khilman: fix compiler warnings] Signed-off-by: Kevin Hilman <khilman@linaro.org>
2014-09-11 22:48:55 +00:00
help
Say y here to enable support io domains on Rockchip SoCs. It is
necessary for the io domain setting of the SoC to match the
voltage supplied by the regulators.
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