mfd: pm8xxx-pwm: add two APIs

These new APIs allow a driver to specify its PWM period,
and raw PWM values separately using chip specific
parameters.

Change-Id: I3e9860f30a50d4f3d9c556133761d51858d2a2e3
Signed-off-by: Jay Chokshi <jchokshi@codeaurora.org>
2 files changed