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ar71xx: fix RB4xx CPLD SPI device mode setup
author
Felix Fietkau
<nbd@nbd.name>
Wed, 11 Jan 2017 09:42:04 +0000
(10:42 +0100)
committer
Felix Fietkau
<nbd@nbd.name>
Wed, 11 Jan 2017 12:02:11 +0000
(13:02 +0100)
Commit
af79fdbe4af3
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>
target/linux/ar71xx/files/drivers/spi/spi-rb4xx-cpld.c
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diff --git
a/target/linux/ar71xx/files/drivers/spi/spi-rb4xx-cpld.c
b/target/linux/ar71xx/files/drivers/spi/spi-rb4xx-cpld.c
index f6ec3505252031b1aa04323a3162e761b2043c16..0534c7c37452c0ff903644803d7dc573c044fe77 100644
(file)
--- a/
target/linux/ar71xx/files/drivers/spi/spi-rb4xx-cpld.c
+++ b/
target/linux/ar71xx/files/drivers/spi/spi-rb4xx-cpld.c
@@
-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) {