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spi: sh-hspi: Convert to let spi core validate bits_per_word
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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@ -230,21 +230,6 @@ static int hspi_transfer_one_message(struct spi_master *master,
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return ret;
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}
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static int hspi_setup(struct spi_device *spi)
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{
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struct hspi_priv *hspi = spi_master_get_devdata(spi->master);
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struct device *dev = hspi->dev;
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if (8 != spi->bits_per_word) {
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dev_err(dev, "bits_per_word should be 8\n");
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return -EIO;
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}
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dev_dbg(dev, "%s setup\n", spi->modalias);
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return 0;
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}
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static void hspi_cleanup(struct spi_device *spi)
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{
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struct hspi_priv *hspi = spi_master_get_devdata(spi->master);
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@ -300,12 +285,13 @@ static int hspi_probe(struct platform_device *pdev)
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master->num_chipselect = 1;
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master->bus_num = pdev->id;
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master->setup = hspi_setup;
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master->cleanup = hspi_cleanup;
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master->mode_bits = SPI_CPOL | SPI_CPHA;
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master->dev.of_node = pdev->dev.of_node;
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master->auto_runtime_pm = true;
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master->transfer_one_message = hspi_transfer_one_message;
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master->bits_per_word_mask = SPI_BPW_MASK(8);
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ret = devm_spi_register_master(&pdev->dev, master);
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if (ret < 0) {
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dev_err(&pdev->dev, "spi_register_master error.\n");
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