spi: move common spi_setup() functionality into core

Start moving some spi_setup() functionality into the SPI core from the
various spi_master controller drivers:

 - Make that function stop being an inline;

 - Move two common idioms from drivers into that new function:
    * Default bits_per_word to 8 if that field isn't set
    * Issue a standardized dev_dbg() message

This is a net minor source code shrink, and supports enhancments found in
some follow-up patches.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 3 deletions

diff --git a/drivers/spi/omap2_mcspi.c b/drivers/spi/omap2_mcspi.c
index d6d0c5d241ce..b4f3b753d0f4 100644
--- a/drivers/spi/omap2_mcspi.c
+++ b/drivers/spi/omap2_mcspi.c
@@ -619,9 +619,7 @@ static int omap2_mcspi_setup(struct spi_device *spi)
                 return -EINVAL;
         }
 
-        if (spi->bits_per_word == 0)
-                spi->bits_per_word = 8;
-        else if (spi->bits_per_word < 4 || spi->bits_per_word > 32) {
+        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;