30 lines
1.1 KiB
Diff
30 lines
1.1 KiB
Diff
From: Axel Lin <axel.lin@ingics.com>
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Date: Sun, 2 Mar 2014 22:25:58 +0800
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Subject: [3/3] spi: sun6i: Set bits_per_word_mask to only support 8 bits word
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length
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Origin: https://git.kernel.org/linus/743a46b89a59abcc6566d9d90b1f28bfa666702e
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This controller only supports 8 bits word length.
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Set bits_per_word_mask so spi core will reject transfers that attempt to use
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an unsupported bits_per_word value.
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Signed-off-by: Axel Lin <axel.lin@ingics.com>
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Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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Signed-off-by: Mark Brown <broonie@linaro.org>
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---
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drivers/spi/spi-sun6i.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/drivers/spi/spi-sun6i.c b/drivers/spi/spi-sun6i.c
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index 4b9ec08..b3e3498 100644
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--- a/drivers/spi/spi-sun6i.c
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+++ b/drivers/spi/spi-sun6i.c
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@@ -391,6 +391,7 @@ static int sun6i_spi_probe(struct platform_device *pdev)
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master->transfer_one = sun6i_spi_transfer_one;
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master->num_chipselect = 4;
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master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LSB_FIRST;
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+ master->bits_per_word_mask = SPI_BPW_MASK(8);
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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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