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spi: convert drivers to use bits_per_word_mask

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Fill in the recently added spi_master.bits_per_word_mask field in as
many drivers as possible. Make related cleanups, such as removing any
redundant error-checking, or empty setup callbacks.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Stephen Warren 2013-05-21 20:36:35 -06:00 • committed by Mark Brown
parent 2922a8de99
commit 24778be20f
28 changed files with 46 additions and 280 deletions
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12
drivers/spi/spi-xcomm.c
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@ -76,7 +76,7 @@ static int spi_xcomm_setup_transfer(struct spi_xcomm *spi_xcomm,
{
unsigned int speed;
if ((t->bits_per_word && t->bits_per_word != 8) || t->len > 62)
if (t->len > 62)
return -EINVAL;
speed = t->speed_hz ? t->speed_hz : spi->max_speed_hz;
@ -209,14 +209,6 @@ static int spi_xcomm_transfer_one(struct spi_master *master,
return status;
}
static int spi_xcomm_setup(struct spi_device *spi)
{
if (spi->bits_per_word != 8)
return -EINVAL;
return 0;
}
static int spi_xcomm_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
@ -233,8 +225,8 @@ static int spi_xcomm_probe(struct i2c_client *i2c,
master->num_chipselect = 16;
master->mode_bits = SPI_CPHA | SPI_CPOL | SPI_3WIRE;
master->bits_per_word_mask = SPI_BPW_MASK(8);
master->flags = SPI_MASTER_HALF_DUPLEX;
master->setup = spi_xcomm_setup;
master->transfer_one_message = spi_xcomm_transfer_one;
master->dev.of_node = i2c->dev.of_node;
i2c_set_clientdata(i2c, master);