CH_EN
if (dma_readl(dw, CH_EN) & dwc->mask) {
BUG_ON(dma_readl(to_dw_dma(chan->device), CH_EN) & dwc->mask);
channel_clear_bit(dw, CH_EN, dwc->mask);
channel_clear_bit(dw, CH_EN, dwc->mask);
channel_clear_bit(dw, CH_EN, dwc->mask);
while (dma_readl(dw, CH_EN) & dwc->mask)
channel_set_bit(dw, CH_EN, dwc->mask);
if (dma_readl(dw, CH_EN) & dwc->mask) {
channel_set_bit(dw, CH_EN, dwc->mask);
if (dma_readl(dw, CH_EN) & dwc->mask) {
DW_REG(CH_EN);
channel_set_bit(idma64, CH_EN, idma64c->mask);
channel_clear_bit(idma64, CH_EN, idma64c->mask);
val = CH_EN(0) | CH_EN(1);
val = CH_EN(lvds_phy->id);
CH_EN(0) | CH_EN(1));
CH_EN(lvds_phy->id));