Remove virt_to_bus(), just using the saved phy address to match.
Signed-off-by: Zhang Wei <[email protected]>
---
drivers/dma/fsldma.c | 13 +++++++++----
1 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index 71e1c32..899b0c0 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -495,15 +495,20 @@ static struct dma_async_tx_descriptor *fsl_dma_prep_memcpy(
*/
static void fsl_dma_update_completed_cookie(struct fsl_dma_chan *fsl_chan)
{
- struct fsl_desc_sw *cur_desc;
+ struct fsl_desc_sw *cur_desc, *desc;
dma_addr_t ld_phy;
ld_phy = get_cdar(fsl_chan) & FSL_DMA_NLDA_MASK;
if (ld_phy) {
- cur_desc = (struct fsl_desc_sw *)bus_to_virt(ld_phy);
-
- if (cur_desc->async_tx.cookie) {
+ cur_desc = NULL;
+ list_for_each_entry(desc, &fsl_chan->ld_queue, node)
+ if (desc->async_tx.phys == ld_phy) {
+ cur_desc = desc;
+ break;
+ }
+
+ if (cur_desc && cur_desc->async_tx.cookie) {
if (dma_is_idle(fsl_chan))
fsl_chan->completed_cookie =
cur_desc->async_tx.cookie;
--
1.5.2
-
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