MXS_DMA_CHANNELS
struct mxs_dma_chan mxs_chans[MXS_DMA_CHANNELS];
err &= (1 << (MXS_DMA_CHANNELS + chan)) | (1 << chan);
err = (err >> (MXS_DMA_CHANNELS + chan)) + (err >> chan);
writel(MXS_DMA_CHANNELS_MASK << MXS_DMA_CHANNELS,
for (i = 0; i < MXS_DMA_CHANNELS; i++) {