[PATCH 1/2] spi: a3700: Remove endianness swapping functions when accessing FIFOs

From: Maxime Chevallier
Date: Wed Jan 24 2018 - 09:10:29 EST


Fixes the following sparse warnings :
line 504: warning: incorrect type in assignment (different base types)
line 504: expected unsigned int [unsigned] [usertype] val
line 504: got restricted __le32 [usertype] <noident>
line 527: warning: cast to restricted __le32

This is solved by removing endian-converson functions, since the
converted values are going through readl/writel anyway, which take care
of the conversion.

Fixes: 6fd6fd68c9e2 ("spi: armada-3700: Fix padding when sending not 4-byte aligned data")
Signed-off-by: Maxime Chevallier <maxime.chevallier@xxxxxxxx>
---
drivers/spi/spi-armada-3700.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/spi/spi-armada-3700.c b/drivers/spi/spi-armada-3700.c
index a8576c89f713..43ee0b56fe1c 100644
--- a/drivers/spi/spi-armada-3700.c
+++ b/drivers/spi/spi-armada-3700.c
@@ -501,7 +501,7 @@ static int a3700_spi_fifo_write(struct a3700_spi *a3700_spi)
u32 val;

while (!a3700_is_wfifo_full(a3700_spi) && a3700_spi->buf_len) {
- val = cpu_to_le32(*(u32 *)a3700_spi->tx_buf);
+ val = *(u32 *)a3700_spi->tx_buf;
spireg_write(a3700_spi, A3700_SPI_DATA_OUT_REG, val);
a3700_spi->buf_len -= 4;
a3700_spi->tx_buf += 4;
@@ -524,9 +524,8 @@ static int a3700_spi_fifo_read(struct a3700_spi *a3700_spi)
while (!a3700_is_rfifo_empty(a3700_spi) && a3700_spi->buf_len) {
val = spireg_read(a3700_spi, A3700_SPI_DATA_IN_REG);
if (a3700_spi->buf_len >= 4) {
- u32 data = le32_to_cpu(val);

- memcpy(a3700_spi->rx_buf, &data, 4);
+ memcpy(a3700_spi->rx_buf, &val, 4);

a3700_spi->buf_len -= 4;
a3700_spi->rx_buf += 4;
--
2.1.4