[PATCH] spi: spi-ti-qspi: clear wlen field while setting word length.
From: Prahlad V
Date: Sat Jul 09 2016 - 16:06:35 EST
When a word length of 1 byte is selected and writing data of length
more than QSPI_WLEN_MAX_BYTES, first MAX_BYTES will be transfered
and remaining will be transfered byte by byte. In that case wlen
field should be cleared before setting.
Signed-off-by: Prahlad V <prahlad.eee@xxxxxxxxx>
---
drivers/spi/spi-ti-qspi.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c
index 29ea8d2..6c61f54 100644
--- a/drivers/spi/spi-ti-qspi.c
+++ b/drivers/spi/spi-ti-qspi.c
@@ -276,9 +276,9 @@ static int qspi_write_msg(struct ti_qspi *qspi, struct spi_transfer *t,
cmd |= QSPI_WLEN(QSPI_WLEN_MAX_BITS);
} else {
writeb(*txbuf, qspi->base + QSPI_SPI_DATA_REG);
- cmd = qspi->cmd | QSPI_WR_SNGL;
xfer_len = wlen;
- cmd |= QSPI_WLEN(wlen);
+ cmd = ((qspi->cmd & ~QSPI_WLEN_MASK) |
+ QSPI_WLEN(wlen));
}
break;
case 2:
--
2.5.5