2 files changed, 8 insertions, 1 deletions

diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index 6ab440e532b..f413e123405 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -1319,7 +1319,11 @@ static int __init dw_probe(struct platform_device *pdev)
                 dwc->chan.device = &dw->dma;
                 dwc->chan.cookie = dwc->completed = 1;
                 dwc->chan.chan_id = i;
-                list_add_tail(&dwc->chan.device_node, &dw->dma.channels);
+                if (pdata->chan_allocation_order == CHAN_ALLOCATION_ASCENDING)
+                        list_add_tail(&dwc->chan.device_node,
+                                        &dw->dma.channels);
+                else
+                        list_add(&dwc->chan.device_node, &dw->dma.channels);
 
                 dwc->ch_regs = &__dw_regs(dw)->CHAN[i];
                 spin_lock_init(&dwc->lock);
diff --git a/include/linux/dw_dmac.h b/include/linux/dw_dmac.h
index deec66b3718..a18c498984d 100644
--- a/include/linux/dw_dmac.h
+++ b/include/linux/dw_dmac.h
@@ -22,6 +22,9 @@
 struct dw_dma_platform_data {
         unsigned int    nr_channels;
         bool            is_private;
+#define CHAN_ALLOCATION_ASCENDING       0       /* zero to seven */
+#define CHAN_ALLOCATION_DESCENDING      1       /* seven to zero */
+        unsigned char   chan_allocation_order;
 };
 
 /**