spi: omap-100k: Rely on validations done by spi core

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 allows to remove a few if statements around per transfer bits_per_word
and speed_hz tests as they evaluate always to true.

Also defaulting word_len to 8 is needless since spi_setup() has already
made sure spi->bits_per_word is 8 in case it is not set.

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

diff --git a/drivers/spi/spi-omap-100k.c b/drivers/spi/spi-omap-100k.c
index 35b332d..76a8425 100644 (file)
--- a/drivers/spi/spi-omap-100k.c
+++ b/drivers/spi/spi-omap-100k.c
@@ -244,12 +244,12 @@ static int omap1_spi100k_setup_transfer(struct spi_device *spi,
 {
        struct omap1_spi100k *spi100k = spi_master_get_devdata(spi->master);
        struct omap1_spi100k_cs *cs = spi->controller_state;
-       u8 word_len = spi->bits_per_word;
+       u8 word_len;
 
-       if (t != NULL && t->bits_per_word)
+       if (t != NULL)
                word_len = t->bits_per_word;
-       if (!word_len)
-               word_len = 8;
+       else
+               word_len = spi->bits_per_word;
 
        if (spi->bits_per_word > 32)
                return -EINVAL;
@@ -302,7 +302,6 @@ static int omap1_spi100k_transfer_one_message(struct spi_master *master,
        struct spi_device *spi = m->spi;
        struct spi_transfer *t = NULL;
        int cs_active = 0;
-       int par_override = 0;
        int status = 0;
 
        list_for_each_entry(t, &m->transfers, transfer_list) {
@@ -310,14 +309,9 @@ static int omap1_spi100k_transfer_one_message(struct spi_master *master,
                        status = -EINVAL;
                        break;
                }
-               if (par_override || t->speed_hz || t->bits_per_word) {
-                       par_override = 1;
-                       status = omap1_spi100k_setup_transfer(spi, t);
-                       if (status < 0)
-                               break;
-                       if (!t->speed_hz && !t->bits_per_word)
-                               par_override = 0;
-               }
+               status = omap1_spi100k_setup_transfer(spi, t);
+               if (status < 0)
+                       break;
 
                if (!cs_active) {
                        omap1_spi100k_force_cs(spi100k, 1);
@@ -347,11 +341,7 @@ static int omap1_spi100k_transfer_one_message(struct spi_master *master,
                }
        }
 
-       /* Restore defaults if they were overriden */
-       if (par_override) {
-               par_override = 0;
-               status = omap1_spi100k_setup_transfer(spi, NULL);
-       }
+       status = omap1_spi100k_setup_transfer(spi, NULL);
 
        if (cs_active)
                omap1_spi100k_force_cs(spi100k, 0);