pwm: pwm-qti-lpg: Add PWM driver for QTI LPG module

Add pwm_chip to support QTI LPG module and export LPG channels as
PWM devices for consumer drivers' usage.

Change-Id: I17b8740bf3c02c9fc19c5e87da17cd2b5321f50f
Signed-off-by: Fenglin Wu <fenglinw@codeaurora.org>
4 files changed