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authorAlexandru Ardelean <alexandru.ardelean@analog.com>2019-09-26 13:51:31 +0300
committerMark Brown <broonie@kernel.org>2019-10-15 11:41:47 +0100
commit329f0dac4cad9fa4b1439a88180d91bcb5c4eaf8 (patch)
tree4fa784efc9999e85944f4b01a1aaed93032cf325 /include/linux/spi
parentb2c98153f45fc17b9fcb241000f2d131ddea6030 (diff)
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.h4
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;