diff options
| author | Matt Johnston <matt@codeconstruct.com.au> | 2023-03-30 09:15:32 +0300 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2023-04-28 00:49:43 +0300 |
| commit | 67df5ce9dd8870d3e53de5ebd6aecf609b713044 (patch) | |
| tree | 280186fbc7f4fbe3c2f6da4d9b1787cd00f5b189 /drivers/i3c | |
| parent | 2810f1de814adb7728b1068586bebcf733cf1992 (diff) | |
| download | linux-67df5ce9dd8870d3e53de5ebd6aecf609b713044.tar.xz | |
i3c: dw: Return the length from a read priv_xfer
We currently assume that the rx_len of a read command will be as
submitted, but we may have a shorter read than expected.
This change populates the output i3c xfer length from the actually-read
length.
Signed-off-by: Matt Johnston <matt@codeconstruct.com.au>
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Link: https://lore.kernel.org/r/f4fff7ab18dee1f662dc7a5a4111fcd921e6792b.1680156630.git.jk@codeconstruct.com.au
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/i3c')
| -rw-r--r-- | drivers/i3c/master/dw-i3c-master.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/i3c/master/dw-i3c-master.c b/drivers/i3c/master/dw-i3c-master.c index 61ad03c4c2c9..e95d73e71574 100644 --- a/drivers/i3c/master/dw-i3c-master.c +++ b/drivers/i3c/master/dw-i3c-master.c @@ -887,6 +887,13 @@ static int dw_i3c_master_priv_xfers(struct i3c_dev_desc *dev, if (!wait_for_completion_timeout(&xfer->comp, XFER_TIMEOUT)) dw_i3c_master_dequeue_xfer(master, xfer); + for (i = 0; i < i3c_nxfers; i++) { + struct dw_i3c_cmd *cmd = &xfer->cmds[i]; + + if (i3c_xfers[i].rnw) + i3c_xfers[i].len = cmd->rx_len; + } + ret = xfer->ret; dw_i3c_master_free_xfer(xfer); |