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| author | Linus Walleij <linus.walleij@stericsson.com> | 2010-03-02 20:12:56 +0100 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2010-03-02 14:17:46 -0700 |
| commit | 56a5d3cf21c71963c8fc506e9b9d3f71641d9c71 (patch) | |
| tree | 3f793e6f9323fa4d34b71c2f1bb85e0497135207 /drivers/dma | |
| parent | 516fd4305e5f5718475e81fe5c17c95888a8157b (diff) | |
| download | linux-3.10-56a5d3cf21c71963c8fc506e9b9d3f71641d9c71.tar.gz linux-3.10-56a5d3cf21c71963c8fc506e9b9d3f71641d9c71.tar.bz2 linux-3.10-56a5d3cf21c71963c8fc506e9b9d3f71641d9c71.zip | |
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>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | 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 5f9af1956ea..71d58c1a1e8 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); |