2344 chan_init(struct mac_serial *zss, struct mac_zschannel *zs_chan,  in chan_init()  argument
2347 	struct device_node *ch = zss->dev_node;  in chan_init()
2355 	zss->irq = ch->intrs[0].line;  in chan_init()
2356 	zss->has_dma = 0;  in chan_init()
2359 		zss->has_dma = 1;  in chan_init()
2361 	zss->dma_initted = 0;  in chan_init()
2367 	zs_chan->parent = zss;  in chan_init()
2368 	zss->zs_channel = zs_chan;  in chan_init()
2369 	zss->zs_chan_a = zs_chan_a;  in chan_init()
2372 	zss->kgdb_channel = 0;  in chan_init()
2378 	zss->is_internal_modem = device_is_compatible(ch, "cobalt");  in chan_init()
2380 	zss->is_irda = conn && (strcmp(conn, "infrared") == 0);  in chan_init()
2381 	zss->port_type = PMAC_SCC_ASYNC;  in chan_init()
2386 			zss->is_irda = 1;  in chan_init()
2388 			zss->is_internal_modem = 1;  in chan_init()
2390 	if (zss->is_irda)  in chan_init()
2391 		zss->port_type = PMAC_SCC_IRDA;  in chan_init()
2392 	if (zss->is_internal_modem) {  in chan_init()
2403 				zss->port_type = PMAC_SCC_I2S1;  in chan_init()
2412 	while (zss->has_dma) {  in chan_init()
2413 		zss->dma_priv = NULL;  in chan_init()
2416 		zss->tx_dma = (volatile struct dbdma_regs *)  in chan_init()
2418 		zss->rx = (volatile struct mac_dma *)  in chan_init()
2420 		zss->tx_dma_irq = ch->intrs[1].line;  in chan_init()
2421 		zss->rx_dma_irq = ch->intrs[2].line;  in chan_init()
2422 		spin_lock_init(&zss->rx_dma_lock);  in chan_init()
2426 	init_timer(&zss->powerup_timer);  in chan_init()
2427 	zss->powerup_timer.function = powerup_done;  in chan_init()
2428 	zss->powerup_timer.data = (unsigned long) zss;  in chan_init()