138 static struct omap_dma_lch *dma_chan;  variable
504 	p->dma_write(dma_chan[lch].enabled_irqs, CICR, lch);  in omap_enable_channel_irq()
520 	dma_chan[lch].enabled_irqs |= bits;  in omap_enable_dma_irq()
526 	dma_chan[lch].enabled_irqs &= ~bits;  in omap_disable_dma_irq()
540 	if (dma_chan[lch].next_lch != -1)  in enable_lnk()
541 		l = dma_chan[lch].next_lch | (1 << 15);  in enable_lnk()
545 		if (dma_chan[lch].next_linked_ch != -1)  in enable_lnk()
546 			l = dma_chan[lch].next_linked_ch | (1 << 15);  in enable_lnk()
572 	dma_chan[lch].flags &= ~OMAP_DMA_ACTIVE;  in disable_lnk()
623 		if (free_ch == -1 && dma_chan[ch].dev_id == -1) {  in omap_request_dma()
633 	chan = dma_chan + free_ch;  in omap_request_dma()
694 	if (dma_chan[lch].dev_id == -1) {  in omap_free_dma()
715 	dma_chan[lch].dev_id = -1;  in omap_free_dma()
716 	dma_chan[lch].next_lch = -1;  in omap_free_dma()
717 	dma_chan[lch].callback = NULL;  in omap_free_dma()
813 	if (!omap_dma_in_1510_mode() && dma_chan[lch].next_lch != -1) {  in omap_start_dma()
823 		cur_lch = dma_chan[lch].next_lch;  in omap_start_dma()
825 			next_lch = dma_chan[cur_lch].next_lch;  in omap_start_dma()
858 	dma_chan[lch].flags |= OMAP_DMA_ACTIVE;  in omap_start_dma()
910 	if (!omap_dma_in_1510_mode() && dma_chan[lch].next_lch != -1) {  in omap_stop_dma()
924 			next_lch = dma_chan[cur_lch].next_lch;  in omap_stop_dma()
929 	dma_chan[lch].flags &= ~OMAP_DMA_ACTIVE;  in omap_stop_dma()
947 	if (dma_chan[lch].dev_id == -1) {  in omap_set_dma_callback()
952 	dma_chan[lch].callback = callback;  in omap_set_dma_callback()
953 	dma_chan[lch].data = data;  in omap_set_dma_callback()
1077 	if ((dma_chan[lch_head].dev_id == -1) ||  in omap_dma_link_lch()
1078 	    (dma_chan[lch_queue].dev_id == -1)) {  in omap_dma_link_lch()
1083 	dma_chan[lch_head].next_lch = lch_queue;  in omap_dma_link_lch()
1096 		csr = dma_chan[ch].saved_csr;  in omap1_dma_handle_ch()
1097 		dma_chan[ch].saved_csr = 0;  in omap1_dma_handle_ch()
1101 		dma_chan[ch + 6].saved_csr = csr >> 7;  in omap1_dma_handle_ch()
1106 	if (unlikely(dma_chan[ch].dev_id == -1)) {  in omap1_dma_handle_ch()
1112 		pr_warn("DMA timeout with device %d\n", dma_chan[ch].dev_id);  in omap1_dma_handle_ch()
1115 			dma_chan[ch].dev_id);  in omap1_dma_handle_ch()
1117 		dma_chan[ch].flags &= ~OMAP_DMA_ACTIVE;  in omap1_dma_handle_ch()
1118 	if (likely(dma_chan[ch].callback != NULL))  in omap1_dma_handle_ch()
1119 		dma_chan[ch].callback(ch, csr, dma_chan[ch].data);  in omap1_dma_handle_ch()
1133 		if (enable_1510_mode && dma_chan[ch + 6].saved_csr)  in omap1_dma_irq_handler()
1159 	if (unlikely(dma_chan[ch].dev_id == -1)) {  in omap2_dma_handle_ch()
1167 			dma_chan[ch].dev_id);  in omap2_dma_handle_ch()
1170 		       dma_chan[ch].dev_id);  in omap2_dma_handle_ch()
1177 			dma_chan[ch].flags &= ~OMAP_DMA_ACTIVE;  in omap2_dma_handle_ch()
1182 		       dma_chan[ch].dev_id);  in omap2_dma_handle_ch()
1185 		       dma_chan[ch].dev_id);  in omap2_dma_handle_ch()
1193 	if (dma_chan[ch].chain_id != -1) {  in omap2_dma_handle_ch()
1194 		int chain_id = dma_chan[ch].chain_id;  in omap2_dma_handle_ch()
1195 		dma_chan[ch].state = DMA_CH_NOTSTARTED;  in omap2_dma_handle_ch()
1197 			dma_chan[dma_chan[ch].next_linked_ch].state =  in omap2_dma_handle_ch()
1210 	if (likely(dma_chan[ch].callback != NULL))  in omap2_dma_handle_ch()
1211 		dma_chan[ch].callback(ch, status, dma_chan[ch].data);  in omap2_dma_handle_ch()
1282 		if (dma_chan[ch].dev_id != -1)  in omap_dma_global_context_restore()
1318 	dma_chan = devm_kcalloc(&pdev->dev, dma_lch_count,  in omap_system_dma_probe()
1320 	if (!dma_chan) {  in omap_system_dma_probe()
1341 		dma_chan[ch].dev_id = -1;  in omap_system_dma_probe()
1342 		dma_chan[ch].next_lch = -1;  in omap_system_dma_probe()
1395 		dma_chan[0].dev_id = 0;  in omap_system_dma_probe()
1396 		dma_chan[1].dev_id = 1;  in omap_system_dma_probe()