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, 1 insertions, 6 deletions

diff --git a/drivers/spi/spi-clps711x.c b/drivers/spi/spi-clps711x.c
index a11cbf02691a..e322b5bf9910 100644
--- a/drivers/spi/spi-clps711x.c
+++ b/drivers/spi/spi-clps711x.c
@@ -42,12 +42,6 @@ static int spi_clps711x_setup(struct spi_device *spi)
 {
         struct spi_clps711x_data *hw = spi_master_get_devdata(spi->master);
 
-        if (spi->bits_per_word != 8) {
-                dev_err(&spi->dev, "Unsupported master bus width %i\n",
-                        spi->bits_per_word);
-                return -EINVAL;
-        }
-
         /* We are expect that SPI-device is not selected */
         gpio_direction_output(hw->chipselect[spi->chip_select],
                               !(spi->mode & SPI_CS_HIGH));
@@ -190,6 +184,7 @@ static int spi_clps711x_probe(struct platform_device *pdev)
 
         master->bus_num = pdev->id;
         master->mode_bits = SPI_CPHA | SPI_CS_HIGH;
+        master->bits_per_word_mask = SPI_BPW_MASK(8);
         master->num_chipselect = pdata->num_chipselect;
         master->setup = spi_clps711x_setup;
         master->transfer_one_message = spi_clps711x_transfer_one_message;