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

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fsl_espi_setup_transfer 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 06:44:42 +02:00 committed by Mark Brown
parent 6bdf03b30e
commit ea616ee220
1 changed files with 4 additions and 15 deletions
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19
drivers/spi/spi-fsl-espi.c
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@ -130,7 +130,7 @@ static u32 fsl_espi_tx_buf_lsb(struct mpc8xxx_spi *mpc8xxx_spi)
return data;
}
static int fsl_espi_setup_transfer(struct spi_device *spi,
static void fsl_espi_setup_transfer(struct spi_device *spi,
struct spi_transfer *t)
{
struct mpc8xxx_spi *mpc8xxx_spi = spi_master_get_devdata(spi->master);
@ -195,7 +195,6 @@ static int fsl_espi_setup_transfer(struct spi_device *spi,
cs->hw_mode |= CSMODE_PM(pm);
fsl_espi_change_mode(spi);
return 0;
}
static int fsl_espi_cpu_bufs(struct mpc8xxx_spi *mspi, struct spi_transfer *t,
@ -292,13 +291,8 @@ static void fsl_espi_do_trans(struct spi_message *m,
spi_message_add_tail(&trans, &message);
list_for_each_entry(t, &message.transfers, transfer_list) {
if (t->bits_per_word || t->speed_hz) {
status = -EINVAL;
status = fsl_espi_setup_transfer(spi, t);
if (status < 0)
break;
}
if (t->bits_per_word || t->speed_hz)
fsl_espi_setup_transfer(spi, t);
if (t->len)
status = fsl_espi_bufs(spi, t);
@ -425,7 +419,6 @@ static int fsl_espi_setup(struct spi_device *spi)
{
struct mpc8xxx_spi *mpc8xxx_spi;
struct fsl_espi_reg *reg_base;
int retval;
u32 hw_mode;
u32 loop_mode;
struct spi_mpc8xxx_cs *cs = spi_get_ctldata(spi);
@ -466,15 +459,11 @@ static int fsl_espi_setup(struct spi_device *spi)
loop_mode |= SPMODE_LOOP;
mpc8xxx_spi_write_reg(&reg_base->mode, loop_mode);
retval = fsl_espi_setup_transfer(spi, NULL);
fsl_espi_setup_transfer(spi, NULL);
pm_runtime_mark_last_busy(mpc8xxx_spi->dev);
pm_runtime_put_autosuspend(mpc8xxx_spi->dev);
if (retval < 0) {
cs->hw_mode = hw_mode; /* Restore settings */
return retval;
}
return 0;
}