diff options
Diffstat (limited to 'drivers/spi/spi-fsl-dspi.c')
| -rw-r--r-- | drivers/spi/spi-fsl-dspi.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c index 50e3382f0c50..6ca35881881b 100644 --- a/drivers/spi/spi-fsl-dspi.c +++ b/drivers/spi/spi-fsl-dspi.c @@ -22,7 +22,7 @@ #define SPI_MCR 0x00 #define SPI_MCR_MASTER BIT(31) -#define SPI_MCR_PCSIS (0x3F << 16) +#define SPI_MCR_PCSIS(x) ((x) << 16) #define SPI_MCR_CLR_TXF BIT(11) #define SPI_MCR_CLR_RXF BIT(10) #define SPI_MCR_XSPI BIT(3) @@ -1200,7 +1200,10 @@ static const struct regmap_config dspi_xspi_regmap_config[] = { static void dspi_init(struct fsl_dspi *dspi) { - unsigned int mcr = SPI_MCR_PCSIS; + unsigned int mcr; + + /* Set idle states for all chip select signals to high */ + mcr = SPI_MCR_PCSIS(GENMASK(dspi->ctlr->num_chipselect - 1, 0)); if (dspi->devtype_data->trans_mode == DSPI_XSPI_MODE) mcr |= SPI_MCR_XSPI; |