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-topcliff-pch.c b/drivers/spi/spi-topcliff-pch.c
index 35f60bd..15cb39b 100644
--- a/drivers/spi/spi-topcliff-pch.c
+++ b/drivers/spi/spi-topcliff-pch.c
@@ -472,11 +472,6 @@
dev_dbg(&pspi->dev, "%s 8 bits per word\n", __func__);
}
- if ((pspi->bits_per_word != 8) && (pspi->bits_per_word != 16)) {
- dev_err(&pspi->dev, "%s Invalid bits per word\n", __func__);
- return -EINVAL;
- }
-
/* Check baud rate setting */
/* if baud rate of chip is greater than
max we can support,return error */
@@ -537,17 +532,6 @@
/* if baud rate has been specified validate the same */
if (transfer->speed_hz > PCH_MAX_BAUDRATE)
transfer->speed_hz = PCH_MAX_BAUDRATE;
-
- /* if bits per word has been specified validate the same */
- if (transfer->bits_per_word) {
- if ((transfer->bits_per_word != 8)
- && (transfer->bits_per_word != 16)) {
- retval = -EINVAL;
- dev_err(&pspi->dev,
- "%s Invalid bits per word\n", __func__);
- goto err_return_spinlock;
- }
- }
}
spin_unlock_irqrestore(&data->lock, flags);
@@ -1442,6 +1426,7 @@
master->setup = pch_spi_setup;
master->transfer = pch_spi_transfer;
master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_LSB_FIRST;
+ master->bits_per_word_mask = SPI_BPW_MASK(8) | SPI_BPW_MASK(16);
data->board_dat = board_dat;
data->plat_dev = plat_dev;