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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>
This commit is contained in:
Abhishek Sahu 2018-03-12 18:44:55 +05:30 committed by Wolfram Sang
parent c5adc0fa63
commit 7e6c35fe60
1 changed files with 2 additions and 2 deletions
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4
drivers/i2c/busses/i2c-qup.c
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@ -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;
}