Messages in this thread Patch in this message | | | From | Kurt Kanzenbach <> | Subject | [PATCH] spi: spi-fsl-dspi: add SPI_LSB_FIRST to driver capabilities | Date | Mon, 13 Nov 2017 08:47:21 +0100 |
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The driver as well as the controller support the SPI lsb first mode. However, it's not possible to configure it e.g. when using spidev. Adding this flag to mode_bits resolves the issue and lsb first mode can be used.
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de> --- drivers/spi/spi-fsl-dspi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c index f652f70cb8db..02d3ed7f2558 100644 --- a/drivers/spi/spi-fsl-dspi.c +++ b/drivers/spi/spi-fsl-dspi.c @@ -980,7 +980,7 @@ static int dspi_probe(struct platform_device *pdev) master->dev.of_node = pdev->dev.of_node; master->cleanup = dspi_cleanup; - master->mode_bits = SPI_CPOL | SPI_CPHA; + master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_LSB_FIRST; master->bits_per_word_mask = SPI_BPW_MASK(4) | SPI_BPW_MASK(8) | SPI_BPW_MASK(16); -- 2.11.0
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