linux-kernel - [PATCH v2 05/14] spi: stm32: use explicit CPOL and CPHA mode bits

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Date:   Mon, 24 Dec 2018 23:00:31 +0100
From:   cezary.gapinski@...il.com
To:     Mark Brown <broonie@...nel.org>, linux-spi@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        Amelie Delaunay <amelie.delaunay@...com>
Cc:     Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Mark Rutland <mark.rutland@....com>,
        Cezary Gapinski <cezary.gapinski@...il.com>
Subject: [PATCH v2 05/14] spi: stm32: use explicit CPOL and CPHA mode bits

From: Cezary Gapinski <cezary.gapinski@...il.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@...il.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