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>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 5000586cb98d..39a3824ec3d7 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -1314,7 +1314,8 @@ static int s3c64xx_spi_probe(struct platform_device *pdev)
         master->unprepare_transfer_hardware = s3c64xx_spi_unprepare_transfer;
         master->num_chipselect = sci->num_cs;
         master->dma_alignment = 8;
-        master->bits_per_word_mask = BIT(32 - 1) | BIT(16 - 1) | BIT(8 - 1);
+        master->bits_per_word_mask = SPI_BPW_MASK(32) | SPI_BPW_MASK(16) |
+                                        SPI_BPW_MASK(8);
         /* the spi->mode bits understood by this driver: */
         master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;