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spi: convert drivers to use bits_per_word_mask

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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>
This commit is contained in:
Stephen Warren
2013-05-21 20:36:35 -06:00
committed by Mark Brown
parent 2922a8de99
commit 24778be20f
28 changed files with 46 additions and 280 deletions
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7
drivers/spi/spi-mxs.c
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@@ -75,12 +75,6 @@ static int mxs_spi_setup_transfer(struct spi_device *dev,
if (t && t->bits_per_word)
bits_per_word = t->bits_per_word;
if (bits_per_word != 8) {
dev_err(&dev->dev, "%s, unsupported bits_per_word=%d\n",
__func__, bits_per_word);
return -EINVAL;
}
hz = dev->max_speed_hz;
if (t && t->speed_hz)
hz = min(hz, t->speed_hz);
@@ -548,6 +542,7 @@ static int mxs_spi_probe(struct platform_device *pdev)
master->transfer_one_message = mxs_spi_transfer_one;
master->setup = mxs_spi_setup;
master->bits_per_word_mask = SPI_BPW_MASK(8);
master->mode_bits = SPI_CPOL | SPI_CPHA;
master->num_chipselect = 3;
master->dev.of_node = np;