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List: linux-spi
Subject: [PATCH] spi: fsl-espi: fix ioread16/iowrite16 endianness
From: Heiner Kallweit <hkallweit1 () gmail ! com>
Date: 2016-11-30 19:28:09
Message-ID: 39487a5a-e899-5998-431b-ee21e5f3fe6c () gmail ! com
[Download RAW message or body]
fsl_espi_read_reg16 / fsl_espi_write_reg16 are supposed to read / write
big endian values. Therefore ioread16be / iowrite16be have to be used.
Fixes: 058234328445 ("eliminate need for linearization when writing to hardware")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
drivers/spi/spi-fsl-espi.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c
index cd28329..1d332e2 100644
--- a/drivers/spi/spi-fsl-espi.c
+++ b/drivers/spi/spi-fsl-espi.c
@@ -124,7 +124,7 @@ static inline u32 fsl_espi_read_reg(struct fsl_espi *espi, int offset)
static inline u16 fsl_espi_read_reg16(struct fsl_espi *espi, int offset)
{
- return ioread16(espi->reg_base + offset);
+ return ioread16be(espi->reg_base + offset);
}
static inline u8 fsl_espi_read_reg8(struct fsl_espi *espi, int offset)
@@ -141,7 +141,7 @@ static inline void fsl_espi_write_reg(struct fsl_espi *espi, int offset,
static inline void fsl_espi_write_reg16(struct fsl_espi *espi, int offset,
u16 val)
{
- iowrite16(val, espi->reg_base + offset);
+ iowrite16be(val, espi->reg_base + offset);
}
static inline void fsl_espi_write_reg8(struct fsl_espi *espi, int offset,
--
2.10.2
--
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