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spi: altera: Use bits_per_word_mask

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This driver does not work for bits_per_word greater than 16.
Set bits_per_word_mask so spi core will reject transfers that attempt to use
an unsupported bits_per_word value.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Axel Lin 2014-03-05 13:37:00 +08:00 committed by Mark Brown
parent 38dbfb59d1
commit 72bb79d042
1 changed files with 1 additions and 0 deletions
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drivers/spi/spi-altera.c
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@ -214,6 +214,7 @@ static int altera_spi_probe(struct platform_device *pdev)
master->bus_num = pdev->id;
master->num_chipselect = 16;
master->mode_bits = SPI_CS_HIGH;
master->bits_per_word_mask = SPI_BPW_RANGE_MASK(1, 16);
hw = spi_master_get_devdata(master);
platform_set_drvdata(pdev, hw);