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Diffstat (limited to 'drivers/pwm/Kconfig')
| -rw-r--r-- | drivers/pwm/Kconfig | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig new file mode 100644 index 00000000000000..baa3ea8283845d --- /dev/null +++ b/drivers/pwm/Kconfig @@ -0,0 +1,42 @@ +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. + +config PWM_SYSFS + bool "Pulse-Width Modulation (PWM) SYSFS Support" + depends on PWM + default no + help + Add SYSFS support to PWM framework + +config PWM_SYSFS_DEBUG + bool "Pulse-Width Modulation (PWM) SYSFS Support Debug" + depends on PWM_SYSFS + default no + help + Activate DEBUG for SYSFS |