spi: stm32: use explicit CPOL and CPHA mode bits
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>
diff --git a/drivers/spi/spi-stm32.c b/drivers/spi/spi-stm32.c
index 8310f14..f7056b7 100644
--- a/drivers/spi/spi-stm32.c
+++ b/drivers/spi/spi-stm32.c
@@ -1142,7 +1142,7 @@
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;
