to_pd
struct pch_dma *pd = to_pd(chan->device);
struct pch_dma *pd = to_pd(chan->device);
struct pch_dma *pd = to_pd(chan->device);
struct pch_dma *pd = to_pd(pd_chan->chan.device);
struct pch_dma *pd = to_pd(pd_chan->chan.device);
struct pch_dma *pd = to_pd(chan->device);
struct pch_dma *pd = to_pd(chan->device);