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authorLaxman Dewangan <ldewangan@nvidia.com>2012-12-18 14:25:43 +0530
committerGrant Likely <grant.likely@secretlab.ca>2013-02-05 12:26:59 +0000
commit766ed70447e0a9cfb23d068a4a929e18e54b0022 (patch)
tree95e426348573fd136fa4c7aeeeffb84143661e7a /drivers/spi/spi-txx9.c
parentbb29785e0d6d150181704be2efcc3141044625e2 (diff)
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>
Diffstat (limited to 'drivers/spi/spi-txx9.c')
-rw-r--r--drivers/spi/spi-txx9.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/spi/spi-txx9.c b/drivers/spi/spi-txx9.c
index d5a3cbb646cb..550b5f48fd8f 100644
--- a/drivers/spi/spi-txx9.c
+++ b/drivers/spi/spi-txx9.c
@@ -189,9 +189,8 @@ static void txx9spi_work_one(struct txx9spi *c, struct spi_message *m)
unsigned int len = t->len;
unsigned int wsize;
u32 speed_hz = t->speed_hz ? : spi->max_speed_hz;
- u8 bits_per_word = t->bits_per_word ? : spi->bits_per_word;
+ u8 bits_per_word = t->bits_per_word;
- bits_per_word = bits_per_word ? : 8;
wsize = bits_per_word >> 3; /* in bytes */
if (prev_speed_hz != speed_hz
@@ -316,9 +315,8 @@ static int txx9spi_transfer(struct spi_device *spi, struct spi_message *m)
/* check each transfer's parameters */
list_for_each_entry (t, &m->transfers, transfer_list) {
u32 speed_hz = t->speed_hz ? : spi->max_speed_hz;
- u8 bits_per_word = t->bits_per_word ? : spi->bits_per_word;
+ u8 bits_per_word = t->bits_per_word;
- bits_per_word = bits_per_word ? : 8;
if (!t->tx_buf && !t->rx_buf && t->len)
return -EINVAL;
if (bits_per_word != 8 && bits_per_word != 16)