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spi: a3700: Remove endianness swapping functions when accessing FIFOs 

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: 6fd6fd68c9 ("spi: armada-3700: Fix padding when sending not 4-byte aligned data")
Signed-off-by: Maxime Chevallier <maxime.chevallier@smile.fr>
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Maxime Chevallier 2018-01-24 15:10:47 +01:00 committed by Mark Brown
parent f68a7dcb91
commit 162f8debc0
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 2 additions and 3 deletions
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5
drivers/spi/spi-armada-3700.c
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@ -493,7 +493,7 @@ 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;
@ -516,9 +516,8 @@ 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;