PWM_HIGH_WIDTH_SHIFT   28 drivers/pwm/pwm-mtk-disp.c #define PWM_HIGH_WIDTH_MASK	(0x1fff << PWM_HIGH_WIDTH_SHIFT)
PWM_HIGH_WIDTH_SHIFT   99 drivers/pwm/pwm-mtk-disp.c 	value = period | (high_width << PWM_HIGH_WIDTH_SHIFT);