linux-kernel - [PATCH] iio: adc: ti-tlc4541: Use new structure for SPI transfer delays

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Message-ID: <20200227123427.20249-1-sergiu.cuciurean@analog.com>
Date:   Thu, 27 Feb 2020 14:34:27 +0200
From:   Sergiu Cuciurean <sergiu.cuciurean@...log.com>
To:     <linux-kernel@...r.kernel.org>, <linux-iio@...r.kernel.org>,
        <jic23@...nel.org>, <kstewart@...uxfoundation.org>,
        <gregkh@...uxfoundation.org>
CC:     <knaack.h@....de>, <lars@...afoo.de>, <pmeerw@...erw.net>,
        <info@...ux.net>, <allison@...utok.net>, <tglx@...utronix.de>,
        "Sergiu Cuciurean" <sergiu.cuciurean@...log.com>
Subject: [PATCH] iio: adc: ti-tlc4541: 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@...log.com>
---
 drivers/iio/adc/ti-tlc4541.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/adc/ti-tlc4541.c b/drivers/iio/adc/ti-tlc4541.c
index 4965246808bd..77620359b54c 100644
--- a/drivers/iio/adc/ti-tlc4541.c
+++ b/drivers/iio/adc/ti-tlc4541.c
@@ -189,7 +189,8 @@ static int tlc4541_probe(struct spi_device *spi)
 	/* Setup default message */
 	st->scan_single_xfer[0].rx_buf = &st->rx_buf[0];
 	st->scan_single_xfer[0].len = 3;
-	st->scan_single_xfer[1].delay_usecs = 3;
+	st->scan_single_xfer[1].delay.value = 3;
+	st->scan_single_xfer[1].delay.unit = SPI_DELAY_UNIT_NSECS;
 	st->scan_single_xfer[2].rx_buf = &st->rx_buf[0];
 	st->scan_single_xfer[2].len = 2;
 
-- 
2.17.1