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From:   Alexandru Ardelean <aardelean@deviqon.com>
To:     linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org
Cc:     jic23@kernel.org, kernel@pengutronix.de, dmuprhy@ti.com,
        martenli@axis.com, alazar@startmail.com, tremyfr@yahoo.fr,
        linux@deviqon.com, Alexandru Ardelean <aardelean@deviqon.com>
Subject: [PATCH] iio: adc: remove unused private data assigned with spi_set_drvdata()
Date:   Thu, 13 May 2021 14:10:35 +0300
Message-Id: <20210513111035.77950-1-aardelean@deviqon.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

These were usually used before the conversion to devm_ functions, so that
the remove hook would be able to retrieve the pointer and do cleanups on
remove.
When the conversion happened, they should have been removed, but were
omitted.

Some drivers were copied from drivers that fit the criteria described
above. In any case, in order to prevent more drivers from being used as
example (and have spi_set_drvdata() needlessly set), this change removes it
from the IIO ADC group.

Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>
---
 drivers/iio/adc/ad7476.c        | 2 --
 drivers/iio/adc/ad7766.c        | 2 --
 drivers/iio/adc/ad7768-1.c      | 1 -
 drivers/iio/adc/ad7887.c        | 1 -
 drivers/iio/adc/ad9467.c        | 2 --
 drivers/iio/adc/hi8435.c        | 1 -
 drivers/iio/adc/max1027.c       | 2 --
 drivers/iio/adc/max1241.c       | 2 --
 drivers/iio/adc/ti-adc084s021.c | 3 ---
 drivers/iio/adc/ti-ads124s08.c  | 2 --
 drivers/iio/adc/ti-tsc2046.c    | 2 --
 11 files changed, 20 deletions(-)

diff --git a/drivers/iio/adc/ad7476.c b/drivers/iio/adc/ad7476.c
index 9d5a71df02b0..a1e8b32671cf 100644
--- a/drivers/iio/adc/ad7476.c
+++ b/drivers/iio/adc/ad7476.c
@@ -389,8 +389,6 @@ static int ad7476_probe(struct spi_device *spi)
 	if (IS_ERR(st->convst_gpio))
 		return PTR_ERR(st->convst_gpio);
 
-	spi_set_drvdata(spi, indio_dev);
-
 	st->spi = spi;
 
 	indio_dev->name = spi_get_device_id(spi)->name;
diff --git a/drivers/iio/adc/ad7766.c b/drivers/iio/adc/ad7766.c
index 236a455aaa18..61184ef24140 100644
--- a/drivers/iio/adc/ad7766.c
+++ b/drivers/iio/adc/ad7766.c
@@ -273,8 +273,6 @@ static int ad7766_probe(struct spi_device *spi)
 			return ret;
 	}
 
-	spi_set_drvdata(spi, indio_dev);
-
 	ad7766->spi = spi;
 
 	/* First byte always 0 */
diff --git a/drivers/iio/adc/ad7768-1.c b/drivers/iio/adc/ad7768-1.c
index 41752777e96c..8615485490b3 100644
--- a/drivers/iio/adc/ad7768-1.c
+++ b/drivers/iio/adc/ad7768-1.c
@@ -610,7 +610,6 @@ static int ad7768_probe(struct spi_device *spi)
 
 	st->mclk_freq = clk_get_rate(st->mclk);
 
-	spi_set_drvdata(spi, indio_dev);
 	mutex_init(&st->lock);
 
 	indio_dev->channels = ad7768_channels;
diff --git a/drivers/iio/adc/ad7887.c b/drivers/iio/adc/ad7887.c
index 9b3cbe1ddc6f..f64999714a4d 100644
--- a/drivers/iio/adc/ad7887.c
+++ b/drivers/iio/adc/ad7887.c
@@ -268,7 +268,6 @@ static int ad7887_probe(struct spi_device *spi)
 	st->chip_info =
 		&ad7887_chip_info_tbl[spi_get_device_id(spi)->driver_data];
 
-	spi_set_drvdata(spi, indio_dev);
 	st->spi = spi;
 
 	indio_dev->name = spi_get_device_id(spi)->name;
diff --git a/drivers/iio/adc/ad9467.c b/drivers/iio/adc/ad9467.c
index 19a45dd43796..dbfc8517cb8a 100644
--- a/drivers/iio/adc/ad9467.c
+++ b/drivers/iio/adc/ad9467.c
@@ -434,8 +434,6 @@ static int ad9467_probe(struct spi_device *spi)
 		mdelay(10);
 	}
 
-	spi_set_drvdata(spi, st);
-
 	conv->chip_info = &info->axi_adc_info;
 
 	id = ad9467_spi_read(spi, AN877_ADC_REG_CHIP_ID);
diff --git a/drivers/iio/adc/hi8435.c b/drivers/iio/adc/hi8435.c
index 074c30970465..8b353e26668e 100644
--- a/drivers/iio/adc/hi8435.c
+++ b/drivers/iio/adc/hi8435.c
@@ -483,7 +483,6 @@ static int hi8435_probe(struct spi_device *spi)
 		gpiod_set_value_cansleep(reset_gpio, 1);
 	}
 
-	spi_set_drvdata(spi, idev);
 	mutex_init(&priv->lock);
 
 	idev->name		= spi_get_device_id(spi)->name;
diff --git a/drivers/iio/adc/max1027.c b/drivers/iio/adc/max1027.c
index e3c8ec107722..655ab02d03d8 100644
--- a/drivers/iio/adc/max1027.c
+++ b/drivers/iio/adc/max1027.c
@@ -430,8 +430,6 @@ static int max1027_probe(struct spi_device *spi)
 		return -ENOMEM;
 	}
 
-	spi_set_drvdata(spi, indio_dev);
-
 	st = iio_priv(indio_dev);
 	st->spi = spi;
 	st->info = &max1027_chip_info_tbl[spi_get_device_id(spi)->driver_data];
diff --git a/drivers/iio/adc/max1241.c b/drivers/iio/adc/max1241.c
index 0cbbb3c56d08..b60f8448f21a 100644
--- a/drivers/iio/adc/max1241.c
+++ b/drivers/iio/adc/max1241.c
@@ -147,8 +147,6 @@ static int max1241_probe(struct spi_device *spi)
 	adc->spi = spi;
 	mutex_init(&adc->lock);
 
-	spi_set_drvdata(spi, indio_dev);
-
 	adc->vdd = devm_regulator_get(dev, "vdd");
 	if (IS_ERR(adc->vdd)) {
 		dev_err(dev, "failed to get vdd regulator\n");
diff --git a/drivers/iio/adc/ti-adc084s021.c b/drivers/iio/adc/ti-adc084s021.c
index 33aea961d850..ce3f5a3814f9 100644
--- a/drivers/iio/adc/ti-adc084s021.c
+++ b/drivers/iio/adc/ti-adc084s021.c
@@ -210,9 +210,6 @@ static int adc084s021_probe(struct spi_device *spi)
 	adc = iio_priv(indio_dev);
 	adc->spi = spi;
 
-	/* Connect the SPI device and the iio dev */
-	spi_set_drvdata(spi, indio_dev);
-
 	/* Initiate the Industrial I/O device */
 	indio_dev->name = spi_get_device_id(spi)->name;
 	indio_dev->modes = INDIO_DIRECT_MODE;
diff --git a/drivers/iio/adc/ti-ads124s08.c b/drivers/iio/adc/ti-ads124s08.c
index b4a128b19188..17d0da5877a9 100644
--- a/drivers/iio/adc/ti-ads124s08.c
+++ b/drivers/iio/adc/ti-ads124s08.c
@@ -327,8 +327,6 @@ static int ads124s_probe(struct spi_device *spi)
 
 	ads124s_priv->chip_info = &ads124s_chip_info_tbl[spi_id->driver_data];
 
-	spi_set_drvdata(spi, indio_dev);
-
 	ads124s_priv->spi = spi;
 
 	indio_dev->name = spi_id->name;
diff --git a/drivers/iio/adc/ti-tsc2046.c b/drivers/iio/adc/ti-tsc2046.c
index 89a818b653b4..26c98b3d74f1 100644
--- a/drivers/iio/adc/ti-tsc2046.c
+++ b/drivers/iio/adc/ti-tsc2046.c
@@ -639,8 +639,6 @@ static int tsc2046_adc_probe(struct spi_device *spi)
 	priv = iio_priv(indio_dev);
 	priv->dcfg = dcfg;
 
-	spi_set_drvdata(spi, indio_dev);
-
 	priv->spi = spi;
 
 	indio_dev->name = TI_TSC2046_NAME;
-- 
2.31.1