suspend_chan 805 drivers/dma/dw/core.c dw->suspend_chan(dwc, drain); suspend_chan 117 drivers/dma/dw/dw.c dw->suspend_chan = dw_dma_suspend_chan; suspend_chan 139 drivers/dma/dw/idma32.c dw->suspend_chan = idma32_suspend_chan; suspend_chan 324 drivers/dma/dw/regs.h void (*suspend_chan)(struct dw_dma_chan *dwc, bool drain);