[PATCH 5/5] DMAENGINE: COH 901 318 lli sg offset fix

[Linus Walleij]

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....@stericsson.com>
---
drivers/dma/coh901318_lli.c | 10 ++++++----
1 files changed, 6 insertions(+), 4 deletions(-)

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 @@ coh901318_lli_alloc(struct coh901318_pool *pool, unsigned int len)

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 @@ coh901318_lli_alloc(struct coh901318_pool *pool, unsigned int len)

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 @@ coh901318_lli_fill_sg(struct coh901318_pool *pool,

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);

--
1.6.3.3

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