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Commit 56a5d3cf authored by Linus Walleij's avatar Linus Walleij Committed by Dan Williams
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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: default avatarLinus Walleij <linus.walleij@stericsson.com>
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent 516fd430

drivers/dma/coh901318_lli.c

+6 −4
Original line number Diff line number Diff line
@@ -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);