menuconfig PWM bool "PWM Support" help This enables PWM support through the generic PWM framework. You only need to enable this, if you also want to enable one or more of the PWM drivers below. If unsure, say N. if PWM config PWM_PXA bool "PXA PWM Support" default y if ARCH_PXA2XX help This enables PWM support for Intel/Marvell PXA chips, such as the PXA25x, PXA27x. endif