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authorStephen Warren <swarren@wwwdotorg.org>2013-05-22 06:36:35 +0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2013-05-29 23:48:17 +0400
commit24778be20f87d5aadb19624fc768b3159fa43efc (patch)
tree05124574b6d331f34938bbae09d4014fde7dca76 /drivers/spi/spi-omap2-mcspi.c
parent2922a8de996956893bb98e4aa91be9774c958336 (diff)
downloadlinux-24778be20f87d5aadb19624fc768b3159fa43efc.tar.xz
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-omap2-mcspi.c')
-rw-r--r--drivers/spi/spi-omap2-mcspi.c13
1 files changed, 2 insertions, 11 deletions
diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c
index 86d2158946bb..6246fb455774 100644
--- a/drivers/spi/spi-omap2-mcspi.c
+++ b/drivers/spi/spi-omap2-mcspi.c
@@ -857,12 +857,6 @@ static int omap2_mcspi_setup(struct spi_device *spi)
struct omap2_mcspi_dma *mcspi_dma;
struct omap2_mcspi_cs *cs = spi->controller_state;
- if (spi->bits_per_word < 4 || spi->bits_per_word > 32) {
- dev_dbg(&spi->dev, "setup: unsupported %d bit words\n",
- spi->bits_per_word);
- return -EINVAL;
- }
-
mcspi_dma = &mcspi->dma_channels[spi->chip_select];
if (!cs) {
@@ -1072,10 +1066,7 @@ static int omap2_mcspi_transfer_one_message(struct spi_master *master,
unsigned len = t->len;
if (t->speed_hz > OMAP2_MCSPI_MAX_FREQ
- || (len && !(rx_buf || tx_buf))
- || (t->bits_per_word &&
- ( t->bits_per_word < 4
- || t->bits_per_word > 32))) {
+ || (len && !(rx_buf || tx_buf))) {
dev_dbg(mcspi->dev, "transfer: %d Hz, %d %s%s, %d bpw\n",
t->speed_hz,
len,
@@ -1196,7 +1187,7 @@ static int omap2_mcspi_probe(struct platform_device *pdev)
/* the spi->mode bits understood by this driver: */
master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;
-
+ master->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 32);
master->setup = omap2_mcspi_setup;
master->prepare_transfer_hardware = omap2_prepare_transfer;
master->unprepare_transfer_hardware = omap2_unprepare_transfer;