spi: Fix OCTAL mode support
Add OCTAL mode support. Issue detected using "--octal" spidev_test's option. Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com> Link: https://msgid.link/r/20240618132951.2743935-4-patrice.chotard@foss.st.com Signed-off-by: Mark Brown <broonie@kernel.org>
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@ -4156,7 +4156,8 @@ static int __spi_validate(struct spi_device *spi, struct spi_message *message)
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return -EINVAL;
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if (xfer->tx_nbits != SPI_NBITS_SINGLE &&
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xfer->tx_nbits != SPI_NBITS_DUAL &&
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xfer->tx_nbits != SPI_NBITS_QUAD)
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xfer->tx_nbits != SPI_NBITS_QUAD &&
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xfer->tx_nbits != SPI_NBITS_OCTAL)
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return -EINVAL;
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if ((xfer->tx_nbits == SPI_NBITS_DUAL) &&
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!(spi->mode & (SPI_TX_DUAL | SPI_TX_QUAD)))
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@ -4171,7 +4172,8 @@ static int __spi_validate(struct spi_device *spi, struct spi_message *message)
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return -EINVAL;
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if (xfer->rx_nbits != SPI_NBITS_SINGLE &&
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xfer->rx_nbits != SPI_NBITS_DUAL &&
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xfer->rx_nbits != SPI_NBITS_QUAD)
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xfer->rx_nbits != SPI_NBITS_QUAD &&
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xfer->rx_nbits != SPI_NBITS_OCTAL)
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return -EINVAL;
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if ((xfer->rx_nbits == SPI_NBITS_DUAL) &&
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!(spi->mode & (SPI_RX_DUAL | SPI_RX_QUAD)))
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@ -1085,12 +1085,13 @@ struct spi_transfer {
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unsigned dummy_data:1;
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unsigned cs_off:1;
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unsigned cs_change:1;
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unsigned tx_nbits:3;
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unsigned rx_nbits:3;
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unsigned tx_nbits:4;
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unsigned rx_nbits:4;
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unsigned timestamped:1;
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#define SPI_NBITS_SINGLE 0x01 /* 1-bit transfer */
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#define SPI_NBITS_DUAL 0x02 /* 2-bit transfer */
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#define SPI_NBITS_QUAD 0x04 /* 4-bit transfer */
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#define SPI_NBITS_OCTAL 0x08 /* 8-bit transfer */
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u8 bits_per_word;
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struct spi_delay delay;
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struct spi_delay cs_change_delay;
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