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List:       linux-spi
Subject:    [PATCH v2 05/14] spi: stm32: use explicit CPOL and CPHA mode bits
From:       cezary.gapinski () gmail ! com
Date:       2018-12-24 22:00:31
Message-ID: 1545688840-23992-6-git-send-email-cezary.gapinski () gmail ! com
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From: Cezary Gapinski <cezary.gapinski@gmail.com>

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>
---
 drivers/spi/spi-stm32.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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 @@ 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;
-- 
2.7.4

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