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From:   Rodrigo Carvalho <rodrigorsdc@gmail.com>
To:     Lars-Peter Clausen <lars@metafoo.de>,
        Michael Hennerich <Michael.Hennerich@analog.com>,
        Stefan Popa <stefan.popa@analog.com>,
        Jonathan Cameron <jic23@kernel.org>,
        Hartmut Knaack <knaack.h@gmx.de>,
        Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        alexandru.ardelean@analog.com
Cc:     linux-iio@vger.kernel.org, devel@driverdev.osuosl.org,
        linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
        kernel-usp@googlegroups.com,
        Rodrigo Carvalho <rodrigorsdc@gmail.com>
Subject: [PATCH v5 1/2] staging: iio: accel: adis16240: enforce SPI mode on probe function
Date:   Sat, 23 Nov 2019 20:35:09 -0300
Message-Id: <20191123233510.4890-1-rodrigorsdc@gmail.com>
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Sender: linux-kernel-owner@vger.kernel.org
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According to the datasheet, this driver supports only SPI mode 3,
so we should enforce it and call spi_setup() on probe function.

Signed-off-by: Rodrigo Ribeiro Carvalho <rodrigorsdc@gmail.com>
---
V5:
  - Add this patch to the patchset

 drivers/staging/iio/accel/adis16240.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/staging/iio/accel/adis16240.c b/drivers/staging/iio/accel/adis16240.c
index 82099db4bf0c..77b6b81767b9 100644
--- a/drivers/staging/iio/accel/adis16240.c
+++ b/drivers/staging/iio/accel/adis16240.c
@@ -400,6 +400,13 @@ static int adis16240_probe(struct spi_device *spi)
 	indio_dev->num_channels = ARRAY_SIZE(adis16240_channels);
 	indio_dev->modes = INDIO_DIRECT_MODE;
 
+	spi->mode = SPI_MODE_3;
+	ret = spi_setup(spi);
+	if (ret) {
+		dev_err(&spi->dev, "spi_setup failed!\n");
+		return ret;
+	}
+
 	ret = adis_init(st, indio_dev, spi, &adis16240_data);
 	if (ret)
 		return ret;
-- 
2.24.0