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authorAxel Lin <axel.lin@ingics.com>2014-03-02 23:24:18 +0800
committerMark Brown <broonie@linaro.org>2014-03-13 09:52:38 +0000
commitbed890b4310b1d3b33c88fb83e216a8182e8bbad (patch)
treec626905d85c868d1f6cd81bf4c6e20e1f912b105 /drivers/spi/spi-clps711x.c
parentfcba212de9bdf1016d981c355df29ab169da8eae (diff)
downloadlinux-bed890b4310b1d3b33c88fb83e216a8182e8bbad.tar.bz2
spi: clps711x: Remove duplicate code to set default bits_per_word and max speed
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>
Diffstat (limited to 'drivers/spi/spi-clps711x.c')
-rw-r--r--drivers/spi/spi-clps711x.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/spi/spi-clps711x.c b/drivers/spi/spi-clps711x.c
index a5938abacfb0..ab010c05dc5a 100644
--- a/drivers/spi/spi-clps711x.c
+++ b/drivers/spi/spi-clps711x.c
@@ -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;