diff options
| author | H Hartley Sweeten <hartleys@visionengravers.com> | 2013-07-02 10:10:00 -0700 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-07-15 11:37:14 +0100 |
| commit | 22c1b69ea833de84a9505135303ff443e62b3b15 (patch) | |
| tree | a927135f705d3b8338b2c61204b514d9ce6d74d0 /drivers/spi/spi-ep93xx.c | |
| parent | e6eb8d9bb7b9c144ae63a5e97a686dd8a3377443 (diff) | |
| download | lwn-22c1b69ea833de84a9505135303ff443e62b3b15.tar.gz lwn-22c1b69ea833de84a9505135303ff443e62b3b15.zip | |
spi: spi-ep93xx: don't bother calculating the divisors in ep93xx_spi_setup()
The divisors needed to generate the SPI clock are calculated per
transfer based on the t->speed_hz. There is no reason to calculate
them in ep93xx_spi_setup().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/spi/spi-ep93xx.c')
| -rw-r--r-- | drivers/spi/spi-ep93xx.c | 14 |
1 files changed, 0 insertions, 14 deletions
diff --git a/drivers/spi/spi-ep93xx.c b/drivers/spi/spi-ep93xx.c index cc2a2405bd1d..6cdfc4036b75 100644 --- a/drivers/spi/spi-ep93xx.c +++ b/drivers/spi/spi-ep93xx.c @@ -136,7 +136,6 @@ struct ep93xx_spi { /** * struct ep93xx_spi_chip - SPI device hardware settings * @spi: back pointer to the SPI device - * @rate: max rate in hz this chip supports * @div_cpsr: cpsr (pre-scaler) divider * @div_scr: scr divider * @ops: private chip operations @@ -147,7 +146,6 @@ struct ep93xx_spi { */ struct ep93xx_spi_chip { const struct spi_device *spi; - unsigned long rate; u8 div_cpsr; u8 div_scr; struct ep93xx_spi_chip_ops *ops; @@ -315,18 +313,6 @@ static int ep93xx_spi_setup(struct spi_device *spi) spi_set_ctldata(spi, chip); } - if (spi->max_speed_hz != chip->rate) { - int err; - - err = ep93xx_spi_calc_divisors(espi, chip, spi->max_speed_hz); - if (err != 0) { - spi_set_ctldata(spi, NULL); - kfree(chip); - return err; - } - chip->rate = spi->max_speed_hz; - } - ep93xx_spi_cs_control(spi, false); return 0; } |