[PATCH v2 2/2] i3c: mipi-i3c-hci: Use I2C DMA-safe api

From: Billy Tsai
Date: Tue Feb 04 2025 - 04:17:25 EST


Use the i2c_get/put_dma_safe_msg_buf for I2C transfers instead of using
the I3C-specific API.

Signed-off-by: Billy Tsai <billy_tsai@xxxxxxxxxxxxxx>
---
drivers/i3c/master/mipi-i3c-hci/core.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/i3c/master/mipi-i3c-hci/core.c b/drivers/i3c/master/mipi-i3c-hci/core.c
index a408feac3e9e..4f3738beb0f2 100644
--- a/drivers/i3c/master/mipi-i3c-hci/core.c
+++ b/drivers/i3c/master/mipi-i3c-hci/core.c
@@ -382,14 +382,11 @@ static int i3c_hci_i2c_xfers(struct i2c_dev_desc *dev,
return -ENOMEM;

for (i = 0; i < nxfers; i++) {
- xfer[i].data = i2c_xfers[i].buf;
+ xfer[i].data = i2c_get_dma_safe_msg_buf(&i2c_xfers[i], 1);
xfer[i].data_len = i2c_xfers[i].len;
xfer[i].rnw = i2c_xfers[i].flags & I2C_M_RD;
hci->cmd->prep_i2c_xfer(hci, dev, &xfer[i]);
xfer[i].cmd_desc[0] |= CMD_0_ROC;
- ret = i3c_hci_alloc_safe_xfer_buf(hci, &xfer[i]);
- if (ret)
- goto out;
}
last = i - 1;
xfer[last].cmd_desc[0] |= CMD_0_TOC;
@@ -412,7 +409,8 @@ static int i3c_hci_i2c_xfers(struct i2c_dev_desc *dev,

out:
for (i = 0; i < nxfers; i++)
- i3c_hci_free_safe_xfer_buf(hci, &xfer[i]);
+ i2c_put_dma_safe_msg_buf(xfer[i].data, &i2c_xfers[i],
+ ret ? false : true);

hci_free_xfer(xfer, nxfers);
return ret;
--
2.25.1