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spi: spi-s3c64xx: Use local variable for FIFO length 

More references to fifo_len are added in subsequent patch.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Andi Shyti <andi@etezian.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Sylwester Nawrocki 2018-04-17 16:29:53 +02:00 committed by Mark Brown
parent 71293a60e3
commit f6364e66c6
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GPG Key ID: 24D68B725D5487D0
1 changed files with 3 additions and 3 deletions
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6
drivers/spi/spi-s3c64xx.c
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@ -634,6 +634,7 @@ static int s3c64xx_spi_transfer_one(struct spi_master *master,
struct spi_transfer *xfer)
{
struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
const unsigned int fifo_len = (FIFO_LVL_MASK(sdd) >> 1) + 1;
int status;
u32 speed;
u8 bpw;
@ -655,9 +656,8 @@ static int s3c64xx_spi_transfer_one(struct spi_master *master,
/* Polling method for xfers not bigger than FIFO capacity */
use_dma = 0;
if (!is_polling(sdd) &&
(sdd->rx_dma.ch && sdd->tx_dma.ch &&
(xfer->len > ((FIFO_LVL_MASK(sdd) >> 1) + 1))))
if (!is_polling(sdd) && (xfer->len > fifo_len) &&
sdd->rx_dma.ch && sdd->tx_dma.ch)
use_dma = 1;
spin_lock_irqsave(&sdd->lock, flags);