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| author |   Alexandru Ardelean <alexandru.ardelean@analog.com> | 2019-09-26 13:51:31 +0300 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2019-10-15 11:41:47 +0100 |
| commit | 329f0dac4cad9fa4b1439a88180d91bcb5c4eaf8 (patch) | |
| tree | 4fa784efc9999e85944f4b01a1aaed93032cf325 /include/linux/spi | |
| parent | spi: introduce spi_delay struct as "value + unit" & spi_delay_exec() (diff) | |
| download | wireguard-linux-329f0dac4cad9fa4b1439a88180d91bcb5c4eaf8.tar.xz wireguard-linux-329f0dac4cad9fa4b1439a88180d91bcb5c4eaf8.zip | |
spi: make `cs_change_delay` the first user of the `spi_delay` logic
Since the logic for `spi_delay` struct + `spi_delay_exec()` has been copied
from the `cs_change_delay` logic, it's natural to make this delay, the
first user.
The `cs_change_delay` logic requires that the default remain 10 uS, in case
it is unspecified/unconfigured. So, there is some special handling needed
to do that.
The ADIS library is one of the few users of the new `cs_change_delay`
parameter for an spi_transfer.
The introduction of the `spi_delay` struct, requires that the users of of
`cs_change_delay` get an update. This change also updates the ADIS library.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20190926105147.7839-4-alexandru.ardelean@analog.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux/spi')
| -rw-r--r-- | include/linux/spi/spi.h | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 8f643de3197b..7670be934643 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -778,7 +778,6 @@ extern void spi_res_release(struct spi_controller *ctlr, * @cs_change: affects chipselect after this transfer completes * @cs_change_delay: delay between cs deassert and assert when * @cs_change is set and @spi_transfer is not the last in @spi_message - * @cs_change_delay_unit: unit of cs_change_delay * @delay_usecs: microseconds to delay after this transfer before * (optionally) changing the chipselect status, then starting * the next transfer or completing this @spi_message. @@ -900,8 +899,7 @@ struct spi_transfer { u8 bits_per_word; u8 word_delay_usecs; u16 delay_usecs; - u16 cs_change_delay; - u8 cs_change_delay_unit; + struct spi_delay cs_change_delay; u32 speed_hz; u16 word_delay; |