CCR_ENABLE
if (omap_dma_chan_read(c, CCR) & CCR_ENABLE)
omap_dma_chan_write(c, CCR, d->ccr | CCR_ENABLE);
val &= ~CCR_ENABLE;
if (!(val & CCR_ENABLE))
val &= ~CCR_ENABLE;
if (!(ccr & CCR_ENABLE)) {