spi: core: remove 'delay_usecs' field from spi_transfer

The 'delay' field in the spi_transfer struct is meant to replace the
'delay_usecs' field. However some cleanup was required to remove the
uses of 'delay_usecs'. Now that it's been cleaned up, we can remove it
from the kernel tree.

Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>
Link: https://lore.kernel.org/r/20210308145502.1075689-10-aardelean@deviqon.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index b08efe8..4814277 100644 (file)
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -3178,7 +3178,6 @@ struct spi_replaced_transfers *spi_replace_transfers(
                /* clear cs_change and delay for all but the last */
                if (i) {
                        xfer->cs_change = false;
-                       xfer->delay_usecs = 0;
                        xfer->delay.value = 0;
                }
        }

diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index 592897f..ea1784a 100644 (file)
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -832,9 +832,6 @@ extern void spi_res_release(struct spi_controller *ctlr,
  * @delay: delay to be introduced after this transfer before
  *     (optionally) changing the chipselect status, then starting
  *     the next transfer or completing this @spi_message.
- * @delay_usecs: microseconds to delay after this transfer before
- *     (optionally) changing the chipselect status, then starting
- *     the next transfer or completing this @spi_message.
  * @word_delay: inter word delay to be introduced after each word size
  *     (set by bits_per_word) transmission.
  * @effective_speed_hz: the effective SCK-speed that was used to
@@ -946,7 +943,6 @@ struct spi_transfer {
 #define        SPI_NBITS_DUAL          0x02 /* 2bits transfer */
 #define        SPI_NBITS_QUAD          0x04 /* 4bits transfer */
        u8              bits_per_word;
-       u16             delay_usecs;
        struct spi_delay        delay;
        struct spi_delay        cs_change_delay;
        struct spi_delay        word_delay;
@@ -1060,14 +1056,6 @@ spi_transfer_del(struct spi_transfer *t)
 static inline int
 spi_transfer_delay_exec(struct spi_transfer *t)
 {
-       struct spi_delay d;
-
-       if (t->delay_usecs) {
-               d.value = t->delay_usecs;
-               d.unit = SPI_DELAY_UNIT_USECS;
-               return spi_delay_exec(&d, NULL);
-       }
-
        return spi_delay_exec(&t->delay, t);
 }