| menuconfig PWM |
| bool "Pulse-Width Modulation (PWM) Support" |
| depends on !MACH_JZ4740 && !PUV3_PWM |
| 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_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_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_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_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_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_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_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 |
| 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 |
| 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_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 |