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, 4 insertions, 4 deletions

diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c
index 50b13c9b1ab6..b141ef221b14 100644
--- a/drivers/spi/spi-davinci.c
+++ b/drivers/spi/spi-davinci.c
@@ -299,16 +299,15 @@ static int davinci_spi_setup_transfer(struct spi_device *spi,
          * Assign function pointer to appropriate transfer method
          * 8bit, 16bit or 32bit transfer
          */
-        if (bits_per_word <= 8 && bits_per_word >= 2) {
+        if (bits_per_word <= 8) {
                 dspi->get_rx = davinci_spi_rx_buf_u8;
                 dspi->get_tx = davinci_spi_tx_buf_u8;
                 dspi->bytes_per_word[spi->chip_select] = 1;
-        } else if (bits_per_word <= 16 && bits_per_word >= 2) {
+        } else {
                 dspi->get_rx = davinci_spi_rx_buf_u16;
                 dspi->get_tx = davinci_spi_tx_buf_u16;
                 dspi->bytes_per_word[spi->chip_select] = 2;
-        } else
-                return -EINVAL;
+        }
 
         if (!hz)
                 hz = spi->max_speed_hz;
@@ -933,6 +932,7 @@ static int davinci_spi_probe(struct platform_device *pdev)
         master->dev.of_node = pdev->dev.of_node;
         master->bus_num = pdev->id;
         master->num_chipselect = pdata->num_chipselect;
+        master->bits_per_word_mask = SPI_BPW_RANGE_MASK(2, 16);
         master->setup = davinci_spi_setup;
 
         dspi->bitbang.chipselect = davinci_spi_chipselect;