spi: remove check for bits_per_word on transfer from low level driver

The spi core make sure that each transfer structure have the proper
setting for bits_per_word before calling low level transfer APIs.

Hence it is no more require to check again in low level driver for
this field whether this is set correct or not. Removing such code
from low level driver.

The txx9 change also removes a test for bits_per_word set to 0, and
forcing it to 8 in that case. This can also be removed now since
spi_setup() ensures spi->bits_per_word is not zero.

	if (!spi->bits_per_word)
		spi->bits_per_word = 8;

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/spi/spi-bitbang.c b/drivers/spi/spi-bitbang.c
index 8b3d8efafd3..61beaec7cbe 100644
--- a/drivers/spi/spi-bitbang.c
+++ b/drivers/spi/spi-bitbang.c
@@ -69,7 +69,7 @@ static unsigned bitbang_txrx_8(
 	unsigned		ns,
 	struct spi_transfer	*t
 ) {
-	unsigned		bits = t->bits_per_word ? : spi->bits_per_word;
+	unsigned		bits = t->bits_per_word;
 	unsigned		count = t->len;
 	const u8		*tx = t->tx_buf;
 	u8			*rx = t->rx_buf;
@@ -95,7 +95,7 @@ static unsigned bitbang_txrx_16(
 	unsigned		ns,
 	struct spi_transfer	*t
 ) {
-	unsigned		bits = t->bits_per_word ? : spi->bits_per_word;
+	unsigned		bits = t->bits_per_word;
 	unsigned		count = t->len;
 	const u16		*tx = t->tx_buf;
 	u16			*rx = t->rx_buf;
@@ -121,7 +121,7 @@ static unsigned bitbang_txrx_32(
 	unsigned		ns,
 	struct spi_transfer	*t
 ) {
-	unsigned		bits = t->bits_per_word ? : spi->bits_per_word;
+	unsigned		bits = t->bits_per_word;
 	unsigned		count = t->len;
 	const u32		*tx = t->tx_buf;
 	u32			*rx = t->rx_buf;