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path: root/drivers/i3c/master/mipi-i3c-hci/dma.c
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Diffstat (limited to 'drivers/i3c/master/mipi-i3c-hci/dma.c')
-rw-r--r--drivers/i3c/master/mipi-i3c-hci/dma.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/i3c/master/mipi-i3c-hci/dma.c b/drivers/i3c/master/mipi-i3c-hci/dma.c
index c805a8497319..4e01a95cc4d0 100644
--- a/drivers/i3c/master/mipi-i3c-hci/dma.c
+++ b/drivers/i3c/master/mipi-i3c-hci/dma.c
@@ -362,6 +362,7 @@ static int hci_dma_queue_xfer(struct i3c_hci *hci,
struct hci_rh_data *rh;
unsigned int i, ring, enqueue_ptr;
u32 op1_val, op2_val;
+ void *buf;
/* For now we only use ring 0 */
ring = 0;
@@ -390,9 +391,10 @@ static int hci_dma_queue_xfer(struct i3c_hci *hci,
/* 2nd and 3rd words of Data Buffer Descriptor Structure */
if (xfer->data) {
+ buf = xfer->bounce_buf ? xfer->bounce_buf : xfer->data;
xfer->data_dma =
dma_map_single(&hci->master.dev,
- xfer->data,
+ buf,
xfer->data_len,
xfer->rnw ?
DMA_FROM_DEVICE :