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ar71xx: fix RB4xx CPLD SPI device mode setup

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Commit af79fdbe4a changed the code to use tx_nbits for dual SPI tx
transfers, however the SPI stack only allows this when the device mode
includes the relevant bit as well

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2017-01-11 10:42:04 +01:00
parent c3a8b87773
commit 889272d92d
1 changed files with 1 additions and 1 deletions
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target/linux/ar71xx/files/drivers/spi/spi-rb4xx-cpld.c
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@ -279,7 +279,7 @@ static int rb4xx_cpld_probe(struct spi_device *spi)
cpld->spi = spi_dev_get(spi);
dev_set_drvdata(&spi->dev, cpld);
spi->mode = SPI_MODE_0;
spi->mode = SPI_MODE_0 | SPI_TX_DUAL;
spi->bits_per_word = 8;
err = spi_setup(spi);
if (err) {