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, 2 deletions

diff --git a/drivers/spi/au1550_spi.c b/drivers/spi/au1550_spi.c
index b02f25c702fd..6a407e60f05b 100644
--- a/drivers/spi/au1550_spi.c
+++ b/drivers/spi/au1550_spi.c
@@ -291,8 +291,6 @@ static int au1550_spi_setup(struct spi_device *spi)
 {
         struct au1550_spi *hw = spi_master_get_devdata(spi->master);
 
-        if (spi->bits_per_word == 0)
-                spi->bits_per_word = 8;
         if (spi->bits_per_word < 4 || spi->bits_per_word > 24) {
                 dev_err(&spi->dev, "setup: invalid bits_per_word=%d\n",
                         spi->bits_per_word);