diff options
Diffstat (limited to 'include/spi.h')
| -rw-r--r-- | include/spi.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/spi.h b/include/spi.h index ba2c8406b2..852f570eaa 100644 --- a/include/spi.h +++ b/include/spi.h @@ -30,6 +30,8 @@ #define SPI_RX_SLOW BIT(11) /* receive with 1 wire slow */ #define SPI_RX_DUAL BIT(12) /* receive with 2 wires */ #define SPI_RX_QUAD BIT(13) /* receive with 4 wires */ +#define SPI_TX_OCTAL BIT(14) /* transmit with 8 wires */ +#define SPI_RX_OCTAL BIT(15) /* receive with 8 wires */ /* Header byte that marks the start of the message */ #define SPI_PREAMBLE_END_BYTE 0xec @@ -561,7 +563,8 @@ int spi_chip_select(struct udevice *slave); * @bus: SPI bus to search * @cs: Chip select to look for * @devp: Returns the slave device if found - * @return 0 if found, -ENODEV on error + * @return 0 if found, -EINVAL if cs is invalid, -ENODEV if no device attached, + * other -ve value on error */ int spi_find_chip_select(struct udevice *bus, int cs, struct udevice **devp); |