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arch/arm/src/stm32l4/stm32l4_spi.c: add missing ret declaration

This commit is contained in:
Juha Niskanen 2020-04-14 08:44:28 -06:00 committed by Abdelatif Guettouche
parent 222a3b9fe8
commit e1138e35e0
1 changed files with 11 additions and 4 deletions
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15
arch/arm/src/stm32l4/stm32l4_spi.c
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@ -1120,7 +1120,9 @@ static void spi_setmode(FAR struct spi_dev_s *dev, enum spi_mode_e mode)
spi_modifycr(STM32L4_SPI_CR1_OFFSET, priv, setbits, clrbits);
spi_modifycr(STM32L4_SPI_CR1_OFFSET, priv, SPI_CR1_SPE, 0);
/* Save the mode so that subsequent re-configurations will be faster */
/* Save the mode so that subsequent re-configurations will be
* faster.
*/
priv->mode = mode;
}
@ -1185,9 +1187,11 @@ static void spi_setbits(FAR struct spi_dev_s *dev, int nbits)
spi_modifycr(STM32L4_SPI_CR2_OFFSET, priv, setbits, clrbits);
spi_modifycr(STM32L4_SPI_CR1_OFFSET, priv, SPI_CR1_SPE, 0);
/* Save the selection so the subsequence re-configurations will be faster */
/* Save the selection so the subsequence re-configurations will be
* faster. nbits has been clobbered... save the signed value.
*/
priv->nbits = savbits; /* nbits has been clobbered... save the signed value. */
priv->nbits = savbits;
}
}
@ -1450,6 +1454,7 @@ static void spi_exchange(FAR struct spi_dev_s *dev, FAR const void *txbuffer,
FAR void *rxbuffer, size_t nwords)
{
FAR struct stm32l4_spidev_s *priv = (FAR struct stm32l4_spidev_s *)dev;
int ret;
#ifdef CONFIG_STM32L4_DMACAPABLE
if ((txbuffer &&
@ -1670,7 +1675,9 @@ static int spi_pm_prepare(FAR struct pm_callback_s *cb, int domain,
if (sval <= 0)
{
/* Exclusive lock is held, do not allow entry to deeper PM states. */
/* Exclusive lock is held, do not allow entry to deeper PM
* states.
*/
return -EBUSY;
}