[PATCH 06/16] spi: bcm63xx-hsspi: Endianness fix for ARM based SoC

From: William Zhang
Date: Fri Jan 06 2023 - 15:21:30 EST


HSSPI controller uses big endian for the opcode in the message to the
controller ping pong buffer. Use cpu_to_be16 to properly handle the
endianness for both big and little endian host.

Fixes: 142168eba9dc ("spi: bcm63xx-hsspi: add bcm63xx HSSPI driver")
Signed-off-by: Kursad Oney <kursad.oney@xxxxxxxxxxxx>
Signed-off-by: William Zhang <william.zhang@xxxxxxxxxxxx>
---

drivers/spi/spi-bcm63xx-hsspi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-bcm63xx-hsspi.c b/drivers/spi/spi-bcm63xx-hsspi.c
index b871fd810d80..63682c8ff955 100644
--- a/drivers/spi/spi-bcm63xx-hsspi.c
+++ b/drivers/spi/spi-bcm63xx-hsspi.c
@@ -194,7 +194,7 @@ static int bcm63xx_hsspi_do_txrx(struct spi_device *spi, struct spi_transfer *t)
tx += curr_step;
}

- __raw_writew(opcode | curr_step, bs->fifo);
+ __raw_writew(cpu_to_be16(opcode | curr_step), bs->fifo);

/* enable interrupt */
__raw_writel(HSSPI_PINGx_CMD_DONE(0),
--
2.37.3