spi: au1550: Simplify au1550_spi_setupxfer()

SPI core validates both bits_per_word and speed_hz transfer parameters and
defaults to spi->bits_per_word and spi->max_speed_hz in case these per
transfer parameters are not set. This can simplify a little the
au1550_spi_setupxfer() as there is need to check only for valid
"struct spi_transfer" pointer.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-au1550.c b/drivers/spi/spi-au1550.c
index f45e085..afd239d 100644 (file)
--- a/drivers/spi/spi-au1550.c
+++ b/drivers/spi/spi-au1550.c
@@ -233,13 +233,12 @@ static int au1550_spi_setupxfer(struct spi_device *spi, struct spi_transfer *t)
        unsigned bpw, hz;
        u32 cfg, stat;
 
-       bpw = spi->bits_per_word;
-       hz = spi->max_speed_hz;
        if (t) {
-               if (t->bits_per_word)
-                       bpw = t->bits_per_word;
-               if (t->speed_hz)
-                       hz = t->speed_hz;
+               bpw = t->bits_per_word;
+               hz = t->speed_hz;
+       } else {
+               bpw = spi->bits_per_word;
+               hz = spi->max_speed_hz;
        }
 
        if (!hz)