BERLIN_PWM_TCNT
berlin_pwm_writel(bpc, pwm->hwpwm, period, BERLIN_PWM_TCNT);
channel->tcnt = berlin_pwm_readl(bpc, i, BERLIN_PWM_TCNT);
berlin_pwm_writel(bpc, i, channel->tcnt, BERLIN_PWM_TCNT);