PWM_ASPEED_DUTY_CYCLE
val = readl(priv->base + PWM_ASPEED_DUTY_CYCLE(hwpwm));
val = readl(priv->base + PWM_ASPEED_DUTY_CYCLE(hwpwm));
writel(val, priv->base + PWM_ASPEED_DUTY_CYCLE(hwpwm));
val = readl(priv->base + PWM_ASPEED_DUTY_CYCLE(hwpwm));
writel(val, priv->base + PWM_ASPEED_DUTY_CYCLE(hwpwm));