KS_DMA_TX_CTRL
writel(hw->tx_cfg, hw->io + KS_DMA_TX_CTRL);
writel(hw->tx_cfg, hw->io + KS_DMA_TX_CTRL);
writel(hw->tx_cfg, hw->io + KS_DMA_TX_CTRL);
writel((hw->tx_cfg & ~DMA_TX_ENABLE), hw->io + KS_DMA_TX_CTRL);
data = readl(hw->io + KS_DMA_TX_CTRL);
{ KS_DMA_TX_CTRL, KS884X_INTERRUPTS_STATUS },