| menuconfig PWM | |
| bool "Pulse-Width Modulation (PWM) Support" | |
| help | |
| Generic Pulse-Width Modulation (PWM) support. | |
| In Pulse-Width Modulation, a variation of the width of pulses | |
| in a rectangular pulse signal is used as a means to alter the | |
| average power of the signal. Applications include efficient | |
| power delivery and voltage regulation. In computer systems, | |
| PWMs are commonly used to control fans or the brightness of | |
| display backlights. | |
| This framework provides a generic interface to PWM devices | |
| within the Linux kernel. On the driver side it provides an API | |
| to register and unregister a PWM chip, an abstraction of a PWM | |
| controller, that supports one or more PWM devices. Client | |
| drivers can request PWM devices and use the generic framework | |
| to configure as well as enable and disable them. | |
| This generic framework replaces the legacy PWM framework which | |
| allows only a single driver implementing the required API. Not | |
| all legacy implementations have been ported to the framework | |
| yet. The framework provides an API that is backward compatible | |
| with the legacy framework so that existing client drivers | |
| continue to work as expected. | |
| If unsure, say no. | |
| if PWM | |
| config PWM_SYSFS | |
| bool | |
| default y if SYSFS | |
| config PWM_AB8500 | |
| tristate "AB8500 PWM support" | |
| depends on AB8500_CORE && ARCH_U8500 | |
| help | |
| Generic PWM framework driver for Analog Baseband AB8500. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-ab8500. | |
| config PWM_ATMEL | |
| tristate "Atmel PWM support" | |
| depends on ARCH_AT91 || AVR32 | |
| help | |
| Generic PWM framework driver for Atmel SoC. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-atmel. | |
| config PWM_ATMEL_TCB | |
| tristate "Atmel TC Block PWM support" | |
| depends on ATMEL_TCLIB && OF | |
| help | |
| Generic PWM framework driver for Atmel Timer Counter Block. | |
| A Timer Counter Block provides 6 PWM devices grouped by 2. | |
| Devices in a given group must have the same period. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-atmel-tcb. | |
| config PWM_BCM_KONA | |
| tristate "Kona PWM support" | |
| depends on ARCH_BCM_MOBILE | |
| help | |
| Generic PWM framework driver for Broadcom Kona PWM block. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-bcm-kona. | |
| config PWM_BFIN | |
| tristate "Blackfin PWM support" | |
| depends on BFIN_GPTIMERS | |
| help | |
| Generic PWM framework driver for Blackfin. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-bfin. | |
| config PWM_CLPS711X | |
| tristate "CLPS711X PWM support" | |
| depends on ARCH_CLPS711X || COMPILE_TEST | |
| depends on HAS_IOMEM | |
| help | |
| Generic PWM framework driver for Cirrus Logic CLPS711X. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-clps711x. | |
| config PWM_EP93XX | |
| tristate "Cirrus Logic EP93xx PWM support" | |
| depends on ARCH_EP93XX | |
| help | |
| Generic PWM framework driver for Cirrus Logic EP93xx. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-ep93xx. | |
| config PWM_FSL_FTM | |
| tristate "Freescale FlexTimer Module (FTM) PWM support" | |
| depends on OF | |
| select REGMAP_MMIO | |
| help | |
| Generic FTM PWM framework driver for Freescale VF610 and | |
| Layerscape LS-1 SoCs. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-fsl-ftm. | |
| config PWM_IMX | |
| tristate "i.MX PWM support" | |
| depends on ARCH_MXC | |
| help | |
| Generic PWM framework driver for i.MX. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-imx. | |
| config PWM_JZ4740 | |
| tristate "Ingenic JZ4740 PWM support" | |
| depends on MACH_JZ4740 | |
| help | |
| Generic PWM framework driver for Ingenic JZ4740 based | |
| machines. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-jz4740. | |
| config PWM_LP3943 | |
| tristate "TI/National Semiconductor LP3943 PWM support" | |
| depends on MFD_LP3943 | |
| help | |
| Generic PWM framework driver for LP3943 which supports two PWM | |
| channels. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-lp3943. | |
| config PWM_LPC32XX | |
| tristate "LPC32XX PWM support" | |
| depends on ARCH_LPC32XX | |
| help | |
| Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two | |
| PWM controllers. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-lpc32xx. | |
| config PWM_LPSS | |
| tristate "Intel LPSS PWM support" | |
| depends on X86 | |
| help | |
| Generic PWM framework driver for Intel Low Power Subsystem PWM | |
| controller. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-lpss. | |
| config PWM_LPSS_PCI | |
| tristate "Intel LPSS PWM PCI driver" | |
| depends on PWM_LPSS && PCI | |
| help | |
| The PCI driver for Intel Low Power Subsystem PWM controller. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-lpss-pci. | |
| config PWM_LPSS_PLATFORM | |
| tristate "Intel LPSS PWM platform driver" | |
| depends on PWM_LPSS && ACPI | |
| help | |
| The platform driver for Intel Low Power Subsystem PWM controller. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-lpss-platform. | |
| config PWM_MXS | |
| tristate "Freescale MXS PWM support" | |
| depends on ARCH_MXS && OF | |
| select STMP_DEVICE | |
| help | |
| Generic PWM framework driver for Freescale MXS. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-mxs. | |
| config PWM_PCA9685 | |
| tristate "NXP PCA9685 PWM driver" | |
| depends on OF && I2C | |
| select REGMAP_I2C | |
| help | |
| Generic PWM framework driver for NXP PCA9685 LED controller. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-pca9685. | |
| config PWM_PUV3 | |
| tristate "PKUnity NetBook-0916 PWM support" | |
| depends on ARCH_PUV3 | |
| help | |
| Generic PWM framework driver for PKUnity NetBook-0916. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-puv3. | |
| config PWM_PXA | |
| tristate "PXA PWM support" | |
| depends on ARCH_PXA | |
| help | |
| Generic PWM framework driver for PXA. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-pxa. | |
| config PWM_RENESAS_TPU | |
| tristate "Renesas TPU PWM support" | |
| depends on ARCH_SHMOBILE || COMPILE_TEST | |
| depends on HAS_IOMEM | |
| help | |
| This driver exposes the Timer Pulse Unit (TPU) PWM controller found | |
| in Renesas chips through the PWM API. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-renesas-tpu. | |
| config PWM_ROCKCHIP | |
| tristate "Rockchip PWM support" | |
| depends on ARCH_ROCKCHIP | |
| help | |
| Generic PWM framework driver for the PWM controller found on | |
| Rockchip SoCs. | |
| config PWM_SAMSUNG | |
| tristate "Samsung PWM support" | |
| depends on PLAT_SAMSUNG | |
| help | |
| Generic PWM framework driver for Samsung. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-samsung. | |
| config PWM_SPEAR | |
| tristate "STMicroelectronics SPEAr PWM support" | |
| depends on PLAT_SPEAR | |
| depends on OF | |
| help | |
| Generic PWM framework driver for the PWM controller on ST | |
| SPEAr SoCs. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-spear. | |
| config PWM_STI | |
| tristate "STiH4xx PWM support" | |
| depends on ARCH_STI | |
| depends on OF | |
| help | |
| Generic PWM framework driver for STiH4xx SoCs. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-sti. | |
| config PWM_TEGRA | |
| tristate "NVIDIA Tegra PWM support" | |
| depends on ARCH_TEGRA | |
| help | |
| Generic PWM framework driver for the PWFM controller found on NVIDIA | |
| Tegra SoCs. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-tegra. | |
| config PWM_TIECAP | |
| tristate "ECAP PWM support" | |
| depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX | |
| help | |
| PWM driver support for the ECAP APWM controller found on AM33XX | |
| TI SOC | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-tiecap. | |
| config PWM_TIEHRPWM | |
| tristate "EHRPWM PWM support" | |
| depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX | |
| help | |
| PWM driver support for the EHRPWM controller found on AM33XX | |
| TI SOC | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-tiehrpwm. | |
| config PWM_TIPWMSS | |
| bool | |
| default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM) | |
| help | |
| PWM Subsystem driver support for AM33xx SOC. | |
| PWM submodules require PWM config space access from submodule | |
| drivers and require common parent driver support. | |
| config PWM_TWL | |
| tristate "TWL4030/6030 PWM support" | |
| depends on TWL4030_CORE | |
| help | |
| Generic PWM framework driver for TWL4030/6030. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-twl. | |
| config PWM_TWL_LED | |
| tristate "TWL4030/6030 PWM support for LED drivers" | |
| depends on TWL4030_CORE | |
| help | |
| Generic PWM framework driver for TWL4030/6030 LED terminals. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-twl-led. | |
| config PWM_VT8500 | |
| tristate "vt8500 PWM support" | |
| depends on ARCH_VT8500 | |
| help | |
| Generic PWM framework driver for vt8500. | |
| To compile this driver as a module, choose M here: the module | |
| will be called pwm-vt8500. | |
| endif |