diff options
| author | Abhishek Sahu <absahu@codeaurora.org> | 2018-03-12 14:14:55 +0100 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2018-03-24 13:19:48 +0100 |
| commit | 7e6c35fe602df6821b3e7db5b1ba656162750fda (patch) | |
| tree | 23600a7455bdc0dff13fb64332507c1e98e81998 /drivers/i2c | |
| parent | i2c: qup: schedule EOT and FLUSH tags at the end of transfer (diff) | |
| download | linux-7e6c35fe602df6821b3e7db5b1ba656162750fda.tar.xz linux-7e6c35fe602df6821b3e7db5b1ba656162750fda.zip | |
i2c: qup: fix the transfer length for BAM RX EOT FLUSH tags
In case of FLUSH operation, BAM copies INPUT EOT FLUSH (0x94)
instead of normal EOT (0x93) tag in input data stream when an
input EOT tag is received during flush operation. So only one tag
will be written instead of 2 separate tags.
Signed-off-by: Abhishek Sahu <absahu@codeaurora.org>
Reviewed-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-qup.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/i2c/busses/i2c-qup.c b/drivers/i2c/busses/i2c-qup.c index b2e8f574cd15..73a288068632 100644 --- a/drivers/i2c/busses/i2c-qup.c +++ b/drivers/i2c/busses/i2c-qup.c @@ -774,10 +774,10 @@ static int qup_i2c_bam_do_xfer(struct qup_i2c_dev *qup, struct i2c_msg *msg, qup->btx.tag.start[0] = QUP_BAM_INPUT_EOT; len++; - /* scratch buf to read the BAM EOT and FLUSH tags */ + /* scratch buf to read the BAM EOT FLUSH tags */ ret = qup_sg_set_buf(&qup->brx.sg[rx_cnt++], &qup->brx.tag.start[0], - 2, qup, DMA_FROM_DEVICE); + 1, qup, DMA_FROM_DEVICE); if (ret) return ret; } |