Applied "spi: a3700: Remove endianness swapping functions when accessing FIFOs" to the spi tree
Mark Brown
broonie at kernel.org
Wed Jan 24 07:36:23 PST 2018
The patch
spi: a3700: Remove endianness swapping functions when accessing FIFOs
has been applied to the spi tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.
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Thanks,
Mark
>From 162f8debc01f48ac984ed6d7291743053ec90271 Mon Sep 17 00:00:00 2001
From: Maxime Chevallier <maxime.chevallier at smile.fr>
Date: Wed, 24 Jan 2018 15:10:47 +0100
Subject: [PATCH] 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: 6fd6fd68c9e2 ("spi: armada-3700: Fix padding when sending not 4-byte aligned data")
Signed-off-by: Maxime Chevallier <maxime.chevallier at smile.fr>
Reviewed-by: Gregory CLEMENT <gregory.clement at free-electrons.com>
Signed-off-by: Mark Brown <broonie at kernel.org>
---
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 fdc35dabcda2..f32b83c7209f 100644
--- a/drivers/spi/spi-armada-3700.c
+++ b/drivers/spi/spi-armada-3700.c
@@ -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;
--
2.15.1
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