spi: convert drivers to use bits_per_word_mask
Fill in the recently added spi_master.bits_per_word_mask field in as
many drivers as possible. Make related cleanups, such as removing any
redundant error-checking, or empty setup callbacks.
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/drivers/spi/spi-ppc4xx.c b/drivers/spi/spi-ppc4xx.c
index 357f183..01df34b 100644
--- a/drivers/spi/spi-ppc4xx.c
+++ b/drivers/spi/spi-ppc4xx.c
@@ -190,12 +190,6 @@
speed = min(t->speed_hz, spi->max_speed_hz);
}
- if (bits_per_word != 8) {
- dev_err(&spi->dev, "invalid bits-per-word (%d)\n",
- bits_per_word);
- return -EINVAL;
- }
-
if (!speed || (speed > spi->max_speed_hz)) {
dev_err(&spi->dev, "invalid speed_hz (%d)\n", speed);
return -EINVAL;
@@ -229,12 +223,6 @@
{
struct spi_ppc4xx_cs *cs = spi->controller_state;
- if (spi->bits_per_word != 8) {
- dev_err(&spi->dev, "invalid bits-per-word (%d)\n",
- spi->bits_per_word);
- return -EINVAL;
- }
-
if (!spi->max_speed_hz) {
dev_err(&spi->dev, "invalid max_speed_hz (must be non-zero)\n");
return -EINVAL;
@@ -465,6 +453,7 @@
bbp->use_dma = 0;
bbp->master->setup = spi_ppc4xx_setup;
bbp->master->cleanup = spi_ppc4xx_cleanup;
+ bbp->master->bits_per_word_mask = SPI_BPW_MASK(8);
/* the spi->mode bits understood by this driver: */
bbp->master->mode_bits =
