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spi: fsl-espi: change return type of fsl_espi_cpu_bufs to void

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fsl_espi_cpu_bufs always returns 0, so change the return type to void.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Heiner Kallweit 2016-08-25 06:44:58 +02:00 committed by Mark Brown
parent ea616ee220
commit bbb55f6d62
1 changed files with 2 additions and 6 deletions
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8
drivers/spi/spi-fsl-espi.c
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@ -197,7 +197,7 @@ static void fsl_espi_setup_transfer(struct spi_device *spi,
fsl_espi_change_mode(spi);
}
static int fsl_espi_cpu_bufs(struct mpc8xxx_spi *mspi, struct spi_transfer *t,
static void fsl_espi_cpu_bufs(struct mpc8xxx_spi *mspi, struct spi_transfer *t,
unsigned int len)
{
u32 word;
@ -211,8 +211,6 @@ static int fsl_espi_cpu_bufs(struct mpc8xxx_spi *mspi, struct spi_transfer *t,
/* transmit word */
word = mspi->get_tx(mspi);
mpc8xxx_spi_write_reg(&reg_base->transmit, word);
return 0;
}
static int fsl_espi_bufs(struct spi_device *spi, struct spi_transfer *t)
@ -239,9 +237,7 @@ static int fsl_espi_bufs(struct spi_device *spi, struct spi_transfer *t)
mpc8xxx_spi_write_reg(&reg_base->command,
(SPCOM_CS(spi->chip_select) | SPCOM_TRANLEN(t->len - 1)));
ret = fsl_espi_cpu_bufs(mpc8xxx_spi, t, len);
if (ret)
return ret;
fsl_espi_cpu_bufs(mpc8xxx_spi, t, len);
/* Won't hang up forever, SPI bus sometimes got lost interrupts... */
ret = wait_for_completion_timeout(&mpc8xxx_spi->done, 2 * HZ);