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authorWilliam Zhang <william.zhang@broadcom.com>2023-02-07 09:58:17 +0300
committerMark Brown <broonie@kernel.org>2023-02-09 18:00:47 +0300
commit85a84a61699990db6a025b5073f337f49933a875 (patch)
tree7395bbfae18a5b96ca60d188f27f4a93bfd53fb4 /drivers/spi
parent99d7428ac94bf67d6e9df81dd3b4bf3046196ad6 (diff)
downloadlinux-85a84a61699990db6a025b5073f337f49933a875.tar.xz
spi: bcm63xx-hsspi: Endianness fix for ARM based SoC
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@broadcom.com> Signed-off-by: William Zhang <william.zhang@broadcom.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Link: https://lore.kernel.org/r/20230207065826.285013-7-william.zhang@broadcom.com Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi-bcm63xx-hsspi.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/spi/spi-bcm63xx-hsspi.c b/drivers/spi/spi-bcm63xx-hsspi.c
index 01d5acad4a1b..a65a0ec67641 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((u16)cpu_to_be16(opcode | curr_step), bs->fifo);
/* enable interrupt */
__raw_writel(HSSPI_PINGx_CMD_DONE(0),