This patch series contains the fifth attempt at implementation of
a generic PWM device interface framework. Think gpiolib, but for
devices and pseudo-devices that generate pulse-wave-modulated outputs.
Compared to the fourth revision of this patch series, the fifth revision:
* Adds more
Updates the existing PWM-related functions to support multiple
and/or hotplugged PWM devices, and adds a sysfs interface.
Moves the code to drivers/pwm.
For now, this new code can exist alongside the current PWM
implementations; the existing implementations will be migrated
to this new framework
