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spi: altera: Use bits_per_word_mask
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>
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@ -214,6 +214,7 @@ static int altera_spi_probe(struct platform_device *pdev)
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master->bus_num = pdev->id;
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master->num_chipselect = 16;
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master->mode_bits = SPI_CS_HIGH;
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master->bits_per_word_mask = SPI_BPW_RANGE_MASK(1, 16);
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hw = spi_master_get_devdata(master);
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platform_set_drvdata(pdev, hw);
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