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, 0 insertions, 4 deletions

diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c
index 2e5fd0977334..d54058a903be 100644
--- a/drivers/spi/spi_bfin5xx.c
+++ b/drivers/spi/spi_bfin5xx.c
@@ -1016,10 +1016,6 @@ static int bfin_spi_setup(struct spi_device *spi)
                 return -EINVAL;
         }
 
-        /* Zero (the default) here means 8 bits */
-        if (!spi->bits_per_word)
-                spi->bits_per_word = 8;
-
         if (spi->bits_per_word != 8 && spi->bits_per_word != 16)
                 return -EINVAL;