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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>
This commit is contained in:
H Hartley Sweeten 2013-07-02 10:10:00 -07:00 committed by Mark Brown
parent e6eb8d9bb7
commit 22c1b69ea8
1 changed files with 0 additions and 14 deletions
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14
drivers/spi/spi-ep93xx.c
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@ -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;
}