Linux 4.14 Gets A Driver For PWM-Controlled Vibrators

Dmitry Torokhov has sent in a second helping of input updates for the Linux 4.14 merge window that is closing this weekend.

One new driver addition in this pull is "pwm-vibra" as a PWM-controlled vibrator driver. The initial use-case for this driver is for the Motorola Droid 4 vibrator control. The vibrator strength is controlled by the duty cycle of the pulse width modulation channel with 100% duty cycle being the strongest and 0% meaning the vibrator is off. This can also be used for other vibrators on a PWM interface besides the Droid 4 through DeviceTree bindings.

This input update also has a UCB1400 touchscreen driver fix for suspend/resume, "home" button working now with Goodix touchscreens, and other fixes.

More details on these last-minute input updates via this Git merge.