DMA_PORT_TIMEOUT
2, 1, DMA_PORT_TIMEOUT);
dma->base + MAIL_IN, 1, DMA_PORT_TIMEOUT);
dma->base + MAIL_OUT, 1, DMA_PORT_TIMEOUT);
ret = dma_port_request(dma, in, DMA_PORT_TIMEOUT);
dma->base + MAIL_DATA, dwords, DMA_PORT_TIMEOUT);
dma->base + MAIL_DATA, dwords, DMA_PORT_TIMEOUT);
return dma_port_request(dma, in, DMA_PORT_TIMEOUT);
dma->base + MAIL_OUT, 1, DMA_PORT_TIMEOUT);