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authorStephen Warren <swarren@wwwdotorg.org>2013-05-21 20:36:35 -0600
committerMark Brown <broonie@opensource.wolfsonmicro.com>2013-05-29 20:48:17 +0100
commit24778be20f87d5aadb19624fc768b3159fa43efc (patch)
tree05124574b6d331f34938bbae09d4014fde7dca76 /drivers/spi/spi-coldfire-qspi.c
parent2922a8de996956893bb98e4aa91be9774c958336 (diff)
spi: convert drivers to use bits_per_word_mask
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>
Diffstat (limited to 'drivers/spi/spi-coldfire-qspi.c')
-rw-r--r--drivers/spi/spi-coldfire-qspi.c11
1 files changed, 2 insertions, 9 deletions
diff --git a/drivers/spi/spi-coldfire-qspi.c b/drivers/spi/spi-coldfire-qspi.c
index 7b5cc9e4e94..9a7db9d1b4c 100644
--- a/drivers/spi/spi-coldfire-qspi.c
+++ b/drivers/spi/spi-coldfire-qspi.c
@@ -312,10 +312,7 @@ static int mcfqspi_transfer_one_message(struct spi_master *master,
bool cs_high = spi->mode & SPI_CS_HIGH;
u16 qmr = MCFQSPI_QMR_MSTR;
- if (t->bits_per_word)
- qmr |= t->bits_per_word << 10;
- else
- qmr |= spi->bits_per_word << 10;
+ qmr |= t->bits_per_word << 10;
if (spi->mode & SPI_CPHA)
qmr |= MCFQSPI_QMR_CPHA;
if (spi->mode & SPI_CPOL)
@@ -377,11 +374,6 @@ static int mcfqspi_unprepare_transfer_hw(struct spi_master *master)
static int mcfqspi_setup(struct spi_device *spi)
{
- if ((spi->bits_per_word < 8) || (spi->bits_per_word > 16)) {
- dev_dbg(&spi->dev, "%d bits per word is not supported\n",
- spi->bits_per_word);
- return -EINVAL;
- }
if (spi->chip_select >= spi->master->num_chipselect) {
dev_dbg(&spi->dev, "%d chip select is out of range\n",
spi->chip_select);
@@ -477,6 +469,7 @@ static int mcfqspi_probe(struct platform_device *pdev)
mcfqspi->dev = &pdev->dev;
master->mode_bits = SPI_CS_HIGH | SPI_CPOL | SPI_CPHA;
+ master->bits_per_word_mask = SPI_BPW_RANGE_MASK(8, 16);
master->setup = mcfqspi_setup;
master->transfer_one_message = mcfqspi_transfer_one_message;
master->prepare_transfer_hardware = mcfqspi_prepare_transfer_hw;