DMAENGINE: COH 901 318 lli sg offset fix
This makes the COH 901 318 respect the scatter offset field by using
the sg_phys() rather than the sg_dma_address() so we get a pointer
to the actual data we want to send rather than the beginning of the
buffer. Also initialize the lli:s a bit more thoroughly.
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/drivers/dma/coh901318_lli.c b/drivers/dma/coh901318_lli.c
index 5f9af19..71d58c1 100644
--- a/drivers/dma/coh901318_lli.c
+++ b/drivers/dma/coh901318_lli.c
@@ -74,6 +74,8 @@
lli = head;
lli->phy_this = phy;
+ lli->link_addr = 0x00000000;
+ lli->virt_link_addr = 0x00000000U;
for (i = 1; i < len; i++) {
lli_prev = lli;
@@ -85,13 +87,13 @@
DEBUGFS_POOL_COUNTER_ADD(pool, 1);
lli->phy_this = phy;
+ lli->link_addr = 0x00000000;
+ lli->virt_link_addr = 0x00000000U;
lli_prev->link_addr = phy;
lli_prev->virt_link_addr = lli;
}
- lli->link_addr = 0x00000000U;
-
spin_unlock(&pool->lock);
return head;
@@ -268,10 +270,10 @@
if (dir == DMA_TO_DEVICE)
/* increment source address */
- src = sg_dma_address(sg);
+ src = sg_phys(sg);
else
/* increment destination address */
- dst = sg_dma_address(sg);
+ dst = sg_phys(sg);
bytes_to_transfer = sg_dma_len(sg);