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Commit 22c1b69e authored by H Hartley Sweeten's avatar H Hartley Sweeten Committed by Mark Brown
Browse files

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: default avatarH Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: default avatarMika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent e6eb8d9b

drivers/spi/spi-ep93xx.c

+0 −14
Original line number Diff line number Diff line
@@ -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;

}