From: Abhishek Sahu Date: Mon, 12 Mar 2018 13:14:55 +0000 (+0530) Subject: i2c: qup: fix the transfer length for BAM RX EOT FLUSH tags X-Git-Tag: v4.19~1263^2~21 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7e6c35fe602df6821b3e7db5b1ba656162750fda;p=platform%2Fkernel%2Flinux-rpi.git 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 Reviewed-by: Andy Gross Signed-off-by: Wolfram Sang --- diff --git a/drivers/i2c/busses/i2c-qup.c b/drivers/i2c/busses/i2c-qup.c index b2e8f57..73a2880 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; }