mid_spi_dma_chan_filter 58 drivers/spi/spi-dw-mid.c dws->rxchan = dma_request_channel(mask, mid_spi_dma_chan_filter, rx); mid_spi_dma_chan_filter 65 drivers/spi/spi-dw-mid.c dws->txchan = dma_request_channel(mask, mid_spi_dma_chan_filter, tx);