From c3a8b87773b7045f20ec288ecf55b3d5af5000ba Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 11 Jan 2017 12:26:27 +0100
Subject: [PATCH] ar71xx: fix RB4xx SPI driver mode bits
Accept SPI_TX_DUAL in device mode to fix the CPLD driver
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
target/linux/ar71xx/files/drivers/spi/spi-rb4xx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target/linux/ar71xx/files/drivers/spi/spi-rb4xx.c b/target/linux/ar71xx/files/drivers/spi/spi-rb4xx.c
index d8c71fb5a7..9175fc7ae3 100644
--- a/target/linux/ar71xx/files/drivers/spi/spi-rb4xx.c
+++ b/target/linux/ar71xx/files/drivers/spi/spi-rb4xx.c
@@ -261,7 +261,7 @@ static int rb4xx_spi_setup(struct spi_device *spi)
struct rb4xx_spi *rbspi = spi_master_get_devdata(spi->master);
unsigned long flags;
- if (spi->mode & ~(SPI_CS_HIGH)) {
+ if (spi->mode & ~(SPI_CS_HIGH | SPI_TX_DUAL)) {
dev_err(&spi->dev, "mode %x not supported\n",
(unsigned) spi->mode);
return -EINVAL;
--
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