LS1X_DMA_CTRL
writel(val, chan->reg_base + LS1X_DMA_CTRL);
ret = readl_poll_timeout_atomic(chan->reg_base + LS1X_DMA_CTRL, val,
writel(val, chan->reg_base + LS1X_DMA_CTRL);
ret = readl_poll_timeout(chan->reg_base + LS1X_DMA_CTRL, val,
int val = readl(chan->reg_base + LS1X_DMA_CTRL);
writel(val | LS1X_DMA_STOP, chan->reg_base + LS1X_DMA_CTRL);