1 files changed, 9 insertions, 14 deletions

diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index a46676db8113..793740686be2 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -137,7 +137,7 @@ static void omap_disable_channel_irq(int lch);
 static inline void omap_enable_channel_irq(int lch);
 
 #define REVISIT_24XX()          printk(KERN_ERR "FIXME: no %s on 24xx\n", \
-                                                __FUNCTION__);
+                                                __func__);
 
 #ifdef CONFIG_ARCH_OMAP15XX
 /* Returns 1 if the DMA module is in OMAP1510-compatible mode, 0 otherwise */
@@ -699,7 +699,7 @@ omap_dma_set_global_params(int arb_rate, int max_fifo_depth, int tparams)
         u32 reg;
 
         if (!cpu_class_is_omap2()) {
-                printk(KERN_ERR "FIXME: no %s on 15xx/16xx\n", __FUNCTION__);
+                printk(KERN_ERR "FIXME: no %s on 15xx/16xx\n", __func__);
                 return;
         }
 
@@ -1020,12 +1020,12 @@ static void create_dma_lch_chain(int lch_head, int lch_queue)
         }
 
         w = OMAP_DMA_CLNK_CTRL_REG(lch_head);
-        w &= ~(0x0f);
+        w &= ~(0x1f);
         w |= lch_queue;
         OMAP_DMA_CLNK_CTRL_REG(lch_head) = w;
 
         w = OMAP_DMA_CLNK_CTRL_REG(lch_queue);
-        w &= ~(0x0f);
+        w &= ~(0x1f);
         w |= (dma_chan[lch_queue].next_linked_ch);
         OMAP_DMA_CLNK_CTRL_REG(lch_queue) = w;
 }
@@ -1248,7 +1248,7 @@ EXPORT_SYMBOL(omap_dma_chain_status);
  * @param frame_count
  * @param callbk_data - channel callback parameter data.
  *
- * @return  - Success : start_dma status
+ * @return  - Success : 0
  *            Failure: -EINVAL/-EBUSY
  */
 int omap_dma_chain_a_transfer(int chain_id, int src_start, int dest_start,
@@ -1367,7 +1367,7 @@ int omap_dma_chain_a_transfer(int chain_id, int src_start, int dest_start,
                         dma_chan[lch].flags |= OMAP_DMA_ACTIVE;
                 }
         }
-        return start_dma;
+        return 0;
 }
 EXPORT_SYMBOL(omap_dma_chain_a_transfer);
 
@@ -1663,6 +1663,7 @@ static int omap2_dma_handle_ch(int ch)
         if (!status) {
                 if (printk_ratelimit())
                         printk(KERN_WARNING "Spurious DMA IRQ for lch %d\n", ch);
+                omap_writel(1 << ch, OMAP_DMA4_IRQSTATUS_L0);
                 return 0;
         }
         if (unlikely(dma_chan[ch].dev_id == -1)) {
@@ -1705,14 +1706,8 @@ static int omap2_dma_handle_ch(int ch)
                 status = OMAP_DMA_CSR_REG(ch);
         }
 
-        if (likely(dma_chan[ch].callback != NULL)) {
-                if (dma_chan[ch].chain_id != -1)
-                        dma_chan[ch].callback(dma_chan[ch].chain_id, status,
-                                              dma_chan[ch].data);
-                else
-                        dma_chan[ch].callback(ch, status, dma_chan[ch].data);
-
-        }
+        if (likely(dma_chan[ch].callback != NULL))
+                dma_chan[ch].callback(ch, status, dma_chan[ch].data);
 
         OMAP_DMA_CSR_REG(ch) = status;