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spi: spidev: use new delay field for spi transfers

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The `delay` field has type `struct spi_delay`.
This allows users to specify nano-second or clock-cycle delays (if needed).

Converting to use `delay` is straightforward: it's just assigning the
value to `delay.value` and hard-coding the `delay.unit` to
`SPI_DELAY_UNIT_USECS`.

This keeps the uapi for spidev un-changed. Changing it can be part of
another changeset and discussion.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20190926105147.7839-14-alexandru.ardelean@analog.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Alexandru Ardelean 2019-09-26 13:51:41 +03:00 committed by Mark Brown
parent 867bd8868b
commit 8e319dd5f1
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1 changed files with 2 additions and 1 deletions
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drivers/spi/spidev.c
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@ -265,7 +265,8 @@ static int spidev_message(struct spidev_data *spidev,
k_tmp->tx_nbits = u_tmp->tx_nbits;
k_tmp->rx_nbits = u_tmp->rx_nbits;
k_tmp->bits_per_word = u_tmp->bits_per_word;
k_tmp->delay_usecs = u_tmp->delay_usecs;
k_tmp->delay.value = u_tmp->delay_usecs;
k_tmp->delay.unit = SPI_DELAY_UNIT_USECS;
k_tmp->speed_hz = u_tmp->speed_hz;
k_tmp->word_delay.value = u_tmp->word_delay_usecs;
k_tmp->word_delay.unit = SPI_DELAY_UNIT_USECS;