From 889272d92db689fd9c910243635e44c9d8323095 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 11 Jan 2017 10:42:04 +0100
Subject: [PATCH] ar71xx: fix RB4xx CPLD SPI device mode setup
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 | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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 f6ec350525..0534c7c374 100644
--- 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) {
--
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