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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.c27
1 files changed, 11 insertions, 16 deletions
diff --git a/drivers/i3c/master/mipi-i3c-hci/dma.c b/drivers/i3c/master/mipi-i3c-hci/dma.c
index 491dfe70b660..351851859f02 100644
--- a/drivers/i3c/master/mipi-i3c-hci/dma.c
+++ b/drivers/i3c/master/mipi-i3c-hci/dma.c
@@ -349,9 +349,7 @@ static void hci_dma_unmap_xfer(struct i3c_hci *hci,
xfer = xfer_list + i;
if (!xfer->data)
continue;
- dma_unmap_single(&hci->master.dev,
- xfer->data_dma, xfer->data_len,
- xfer->rnw ? DMA_FROM_DEVICE : DMA_TO_DEVICE);
+ i3c_master_dma_unmap_single(xfer->dma);
}
}
@@ -362,7 +360,6 @@ 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;
@@ -373,6 +370,8 @@ static int hci_dma_queue_xfer(struct i3c_hci *hci,
for (i = 0; i < n; i++) {
struct hci_xfer *xfer = xfer_list + i;
u32 *ring_data = rh->xfer + rh->xfer_struct_sz * enqueue_ptr;
+ enum dma_data_direction dir = xfer->rnw ? DMA_FROM_DEVICE :
+ DMA_TO_DEVICE;
/* store cmd descriptor */
*ring_data++ = xfer->cmd_desc[0];
@@ -391,21 +390,17 @@ 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,
- buf,
- xfer->data_len,
- xfer->rnw ?
- DMA_FROM_DEVICE :
- DMA_TO_DEVICE);
- if (dma_mapping_error(&hci->master.dev,
- xfer->data_dma)) {
+ xfer->dma = i3c_master_dma_map_single(&hci->master.dev,
+ xfer->data,
+ xfer->data_len,
+ false,
+ dir);
+ if (!xfer->dma) {
hci_dma_unmap_xfer(hci, xfer_list, i);
return -ENOMEM;
}
- *ring_data++ = lower_32_bits(xfer->data_dma);
- *ring_data++ = upper_32_bits(xfer->data_dma);
+ *ring_data++ = lower_32_bits(xfer->dma->addr);
+ *ring_data++ = upper_32_bits(xfer->dma->addr);
} else {
*ring_data++ = 0;
*ring_data++ = 0;