SP7021_PWM_MODE1
mode1 = readl(priv->base + SP7021_PWM_MODE1);
writel(mode1, priv->base + SP7021_PWM_MODE1);
mode1 = readl(priv->base + SP7021_PWM_MODE1);
writel(mode1, priv->base + SP7021_PWM_MODE1);