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, 10 deletions

diff --git a/drivers/spi/spi-omap-100k.c b/drivers/spi/spi-omap-100k.c
index 78d29a18dcc4..9137fcc4f99b 100644
--- a/drivers/spi/spi-omap-100k.c
+++ b/drivers/spi/spi-omap-100k.c
@@ -298,12 +298,6 @@ static int omap1_spi100k_setup(struct spi_device *spi)
         struct omap1_spi100k    *spi100k;
         struct omap1_spi100k_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;
-        }
-
         spi100k = spi_master_get_devdata(spi->master);
 
         if (!cs) {
@@ -451,10 +445,7 @@ static int omap1_spi100k_transfer(struct spi_device *spi, struct spi_message *m)
                 unsigned        len = t->len;
 
                 if (t->speed_hz > OMAP1_SPI100K_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(&spi->dev, "transfer: %d Hz, %d %s%s, %d bpw\n",
                                         t->speed_hz,
                                         len,
@@ -509,6 +500,7 @@ static int omap1_spi100k_probe(struct platform_device *pdev)
         master->cleanup = NULL;
         master->num_chipselect = 2;
         master->mode_bits = MODEBITS;
+        master->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 32);
 
         dev_set_drvdata(&pdev->dev, master);