DMAENGINE: COH 901 318 remove irq counting

This removes the pointless irq counting for the COH 901 318, as
it turns out the hardware will only ever fire one IRQ for a linked
list anyway. In the process also a missing spinlock was introduced.

Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

1 files changed, 3 insertions, 10 deletions

diff --git a/drivers/dma/coh901318_lli.c b/drivers/dma/coh901318_lli.c
index f5120f238a4..5f9af1956ea 100644
--- a/drivers/dma/coh901318_lli.c
+++ b/drivers/dma/coh901318_lli.c
@@ -166,8 +166,7 @@ coh901318_lli_fill_memcpy(struct coh901318_pool *pool,
         lli->src_addr = src;
         lli->dst_addr = dst;
 
-        /* One irq per single transfer */
-        return 1;
+        return 0;
 }
 
 int
@@ -223,8 +222,7 @@ coh901318_lli_fill_single(struct coh901318_pool *pool,
         lli->src_addr = src;
         lli->dst_addr = dst;
 
-        /* One irq per single transfer */
-        return 1;
+        return 0;
 }
 
 int
@@ -240,7 +238,6 @@ coh901318_lli_fill_sg(struct coh901318_pool *pool,
         u32 ctrl_sg;
         dma_addr_t src = 0;
         dma_addr_t dst = 0;
-        int nbr_of_irq = 0;
         u32 bytes_to_transfer;
         u32 elem_size;
 
@@ -269,9 +266,6 @@ coh901318_lli_fill_sg(struct coh901318_pool *pool,
                         ctrl_sg = ctrl ? ctrl : ctrl_last;
 
 
-                if ((ctrl_sg & ctrl_irq_mask))
-                        nbr_of_irq++;
-
                 if (dir == DMA_TO_DEVICE)
                         /* increment source address */
                         src = sg_dma_address(sg);
@@ -310,8 +304,7 @@ coh901318_lli_fill_sg(struct coh901318_pool *pool,
         }
         spin_unlock(&pool->lock);
 
-        /* There can be many IRQs per sg transfer */
-        return nbr_of_irq;
+        return 0;
  err:
         spin_unlock(&pool->lock);
         return -EINVAL;