PWM: JZ4770: Correct comment about shutdown bit
PWM: JZ4770: Correct polarity

When disabled, output is the non-initial state. Since normal polarity
should output 0 when disabled, its initial state must be 1.
MIPS: JZ4770: GCW0: Correct polarity of backlight PWM

The backlight is high active (verified using GPIO mode), so it should
be using normal polarity. The inversed polarity configuration used to
work because the PWM driver had a bug that flipped polarity, but that
bug has now been fixed.
input: pwm-haptic: Remove inverted duty cycle

This only existed to work around a bug in the pwm driver we were using.