iio: adc: mcp320x: 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>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/mcp320x.c b/drivers/iio/adc/mcp320x.c
index 465c762..2c0eb5d 100644 (file)
--- a/drivers/iio/adc/mcp320x.c
+++ b/drivers/iio/adc/mcp320x.c
@@ -421,7 +421,8 @@ static int mcp320x_probe(struct spi_device *spi)
                        adc->transfer[1].len++;
 
                /* conversions are started by asserting CS pin for 8 usec */
-               adc->start_conv_transfer.delay_usecs = 8;
+               adc->start_conv_transfer.delay.value = 8;
+               adc->start_conv_transfer.delay.unit = SPI_DELAY_UNIT_USECS;
                spi_message_init_with_transfers(&adc->start_conv_msg,
                                                &adc->start_conv_transfer, 1);