iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

spi: clps711x: Remove duplicate code to set default bits_per_word and max speed

Browse Source 
In the implementation of __spi_validate(), spi core will set transfer
bits_per_word and max speed as spi device default if it is not set for
this transfer. So we can remove the same logic in spi_clps711x_setup_xfer() and
spi_clps711x_transfer_one().

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Axel Lin 2014-03-02 23:24:18 +08:00 committed by Mark Brown
parent fcba212de9
commit bed890b431
1 changed files with 4 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/spi/spi-clps711x.c
View File

@ -45,17 +45,16 @@ static int spi_clps711x_setup(struct spi_device *spi)
static void spi_clps711x_setup_xfer(struct spi_device *spi,
struct spi_transfer *xfer)
{
u32 speed = xfer->speed_hz ? : spi->max_speed_hz;
struct spi_clps711x_data *hw = spi_master_get_devdata(spi->master);
/* Setup SPI frequency divider */
if (!speed || (speed >= hw->max_speed_hz))
if (!xfer->speed_hz || (xfer->speed_hz >= hw->max_speed_hz))
clps_writel((clps_readl(SYSCON1) & ~SYSCON1_ADCKSEL_MASK) |
SYSCON1_ADCKSEL(3), SYSCON1);
else if (speed >= (hw->max_speed_hz / 2))
else if (xfer->speed_hz >= (hw->max_speed_hz / 2))
clps_writel((clps_readl(SYSCON1) & ~SYSCON1_ADCKSEL_MASK) |
SYSCON1_ADCKSEL(2), SYSCON1);
else if (speed >= (hw->max_speed_hz / 8))
else if (xfer->speed_hz >= (hw->max_speed_hz / 8))
clps_writel((clps_readl(SYSCON1) & ~SYSCON1_ADCKSEL_MASK) |
SYSCON1_ADCKSEL(1), SYSCON1);
else
@ -87,7 +86,7 @@ static int spi_clps711x_transfer_one(struct spi_master *master,
spi_clps711x_setup_xfer(spi, xfer);
hw->len = xfer->len;
hw->bpw = xfer->bits_per_word ? : spi->bits_per_word;
hw->bpw = xfer->bits_per_word;
hw->tx_buf = (u8 *)xfer->tx_buf;
hw->rx_buf = (u8 *)xfer->rx_buf;