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spi: stm32: use explicit CPOL and CPHA mode bits

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Driver supports SPI mode 0 to 3 not only the mode 3.
Use SPI_CPOL and SPI_CPHA indicates that these bits
can be changed to obtain modes 0 - 3.

Signed-off-by: Cezary Gapinski <cezary.gapinski@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Cezary Gapinski 2018-12-24 23:00:31 +01:00 committed by Mark Brown
parent bb35c9f91a
commit d6cea11b09
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GPG key ID: 24D68B725D5487D0
1 changed files with 1 additions and 1 deletions
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2
drivers/spi/spi-stm32.c
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@ -1142,7 +1142,7 @@ static int stm32_spi_probe(struct platform_device *pdev)
master->dev.of_node = pdev->dev.of_node;
master->auto_runtime_pm = true;
master->bus_num = pdev->id;
master->mode_bits = SPI_MODE_3 | SPI_CS_HIGH | SPI_LSB_FIRST |
master->mode_bits = SPI_CPHA | SPI_CPOL | SPI_CS_HIGH | SPI_LSB_FIRST |
SPI_3WIRE | SPI_LOOP;
master->bits_per_word_mask = stm32_spi_get_bpw_mask(spi);
master->max_speed_hz = spi->clk_rate / SPI_MBR_DIV_MIN;