[PATCH] net: ieee802154: ca8210: Use new structure for SPI transfer delays

In a recent change to the SPI subsystem [1], a new `delay` struct was added
to replace the `delay_usecs`. This change replaces the current
`delay_usecs` with `delay` for this driver.

The `spi_transfer_delay_exec()` function [in the SPI framework] makes sure
that both `delay_usecs` & `delay` are used (in this order to preserve
backwards compatibility).

[1] commit bebcfd272df6 ("spi: introduce `delay` field for
`spi_transfer` + spi_transfer_delay_exec()")

Signed-off-by: Sergiu Cuciurean <sergiu.cuciurean@analog.com>
---
  drivers/net/ieee802154/ca8210.c | 3 ++-
  1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ieee802154/ca8210.c b/drivers/net/ieee802154/ca8210.c
index 430c93786153..e04c3b60cae7 100644
--- a/drivers/net/ieee802154/ca8210.c
+++ b/drivers/net/ieee802154/ca8210.c

@@ -946,7 +946,8 @@ static int ca8210_spi_transfer(
  	cas_ctl->transfer.bits_per_word = 0; /* Use device setting */
  	cas_ctl->transfer.tx_buf = cas_ctl->tx_buf;
  	cas_ctl->transfer.rx_buf = cas_ctl->tx_in_buf;
-	cas_ctl->transfer.delay_usecs = 0;
+	cas_ctl->transfer.delay.value = 0;
+	cas_ctl->transfer.delay.unit = SPI_DELAY_UNIT_USECS;
  	cas_ctl->transfer.cs_change = 0;
  	cas_ctl->transfer.len = sizeof(struct mac_message);
  	cas_ctl->msg.complete = ca8210_spi_transfer_complete;