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, 6 deletions

diff --git a/drivers/spi/xilinx_spi.c b/drivers/spi/xilinx_spi.c
index 494d3f756e29..2d7e6b81fb4a 100644
--- a/drivers/spi/xilinx_spi.c
+++ b/drivers/spi/xilinx_spi.c
@@ -170,9 +170,6 @@ static int xilinx_spi_setup(struct spi_device *spi)
         xspi = spi_master_get_devdata(spi->master);
         bitbang = &xspi->bitbang;
 
-        if (!spi->bits_per_word)
-                spi->bits_per_word = 8;
-
         if (spi->mode & ~MODEBITS) {
                 dev_err(&spi->dev, "%s, unsupported mode bits %x\n",
                         __func__, spi->mode & ~MODEBITS);
@@ -183,9 +180,6 @@ static int xilinx_spi_setup(struct spi_device *spi)
         if (retval < 0)
                 return retval;
 
-        dev_dbg(&spi->dev, "%s, mode %d, %u bits/w, %u nsec/bit\n",
-                __func__, spi->mode & MODEBITS, spi->bits_per_word, 0);
-
         return 0;
 }