From 56a5d3cf21c71963c8fc506e9b9d3f71641d9c71 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 2 Mar 2010 20:12:56 +0100 Subject: [PATCH] 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 Signed-off-by: Dan Williams --- drivers/dma/coh901318_lli.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/dma/coh901318_lli.c b/drivers/dma/coh901318_lli.c index 5f9af1956eab..71d58c1a1e86 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); -- 2.20.1