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s32k3xx:LPSPI register usage cleanup

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David Sidrane 2022-12-14 04:20:17 -08:00 committed by Xiang Xiao
parent 920956b20f
commit df4eb4896d
1 changed files with 9 additions and 35 deletions
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44
arch/arm/src/s32k3xx/s32k3xx_lpspi.c
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@ -517,32 +517,6 @@ static struct s32k3xx_lpspidev_s g_lpspi5dev =
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: spi_modifyreg
*
* Description:
* Atomic modification of the 32-bit contents of the SPI register at offset
*
* Input Parameters:
* priv - private SPI device structure
* offset - offset to the register of interest
* clearbits - bits to clear
* clearbits - bits to set
*
* Returned Value:
* None.
*
****************************************************************************/
#ifdef CONFIG_S32K3XX_LPSPI_DMA
static inline void spi_modifyreg(struct s32k3xx_lpspidev_s *priv,
uint8_t offset, uint32_t clearbits,
uint32_t setbits)
{
modifyreg32(priv->spibase + offset, clearbits, setbits);
}
#endif
/****************************************************************************
* Name: s32k3xx_lpspi_getreg8
*
@ -746,7 +720,7 @@ static inline uint16_t
}
/****************************************************************************
* Name: s32k3xx_lpspi_modifyreg
* Name: s32k3xx_lpspi_modifyreg32
*
* Description:
* Clear and set bits in register
@ -1104,9 +1078,9 @@ static uint32_t s32k3xx_lpspi_setfrequency(struct spi_dev_s *dev,
/* Write the best values in the CCR register */
regval &= ~LPSPI_CCR_SCKDIV_MASK;
regval |= LPSPI_CCR_SCKDIV(best_scaler);
s32k3xx_lpspi_putreg32(priv, S32K3XX_LPSPI_CCR_OFFSET, regval);
s32k3xx_lpspi_modifyreg32(priv, S32K3XX_LPSPI_CCR_OFFSET,
LPSPI_CCR_SCKDIV_MASK,
LPSPI_CCR_SCKDIV(best_scaler));
/* Re-enable LPSPI if it was enabled previously */
@ -1764,9 +1738,9 @@ static void s32k3xx_lpspi_exchange(struct spi_dev_s *dev,
regval = s32k3xx_lpspi_getreg32(priv, S32K3XX_LPSPI_CFGR1_OFFSET);
spi_modifyreg(priv, S32K3XX_LPSPI_CR_OFFSET,
LPSPI_CR_RTF | LPSPI_CR_RRF,
LPSPI_CR_RTF | LPSPI_CR_RRF);
s32k3xx_lpspi_modifyreg32(priv, S32K3XX_LPSPI_CR_OFFSET,
LPSPI_CR_RTF | LPSPI_CR_RRF,
LPSPI_CR_RTF | LPSPI_CR_RRF);
s32k3xx_lpspi_putreg32(priv, S32K3XX_LPSPI_CFGR1_OFFSET, regval);
@ -1821,8 +1795,8 @@ static void s32k3xx_lpspi_exchange(struct spi_dev_s *dev,
/* Invoke SPI DMA */
spi_modifyreg(priv, S32K3XX_LPSPI_DER_OFFSET,
0, LPSPI_DER_TDDE | LPSPI_DER_RDDE);
s32k3xx_lpspi_modifyreg32(priv, S32K3XX_LPSPI_DER_OFFSET,
0, LPSPI_DER_TDDE | LPSPI_DER_RDDE);
/* Then wait for each to complete */