iio: remove explicit IIO device parent assignment

This patch applies the semantic patch:
@@
expression I, P, SP;
@@
   I = devm_iio_device_alloc(P, SP);
   ...
-  I->dev.parent = P;

It updates 302 files and does 307 deletions.
This semantic patch also removes some comments like
'/* Establish that the iio_dev is a child of the i2c device */'

But this is is only done in case where the block is left empty.

The patch does not seem to cover all cases. It looks like in some cases a
different variable is used in some cases to assign the parent, but it
points to the same reference.
In other cases, the block covered by ... may be just too big to be covered
by the semantic patch.

However, this looks pretty good as well, as it does cover a big bulk of the
drivers that should remove the parent assignment.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

10 files changed, 0 insertions, 10 deletions

diff --git a/drivers/iio/potentiometer/ad5272.c b/drivers/iio/potentiometer/ad5272.c
index 154f9a5da8bc..08a15e505ed6 100644
--- a/drivers/iio/potentiometer/ad5272.c
+++ b/drivers/iio/potentiometer/ad5272.c
@@ -184,7 +184,6 @@ static int ad5272_probe(struct i2c_client *client,
 	if (ret < 0)
 		return -ENODEV;
 
-	indio_dev->dev.parent = dev;
 	indio_dev->info = &ad5272_info;
 	indio_dev->channels = &ad5272_channel;
 	indio_dev->num_channels = 1;
diff --git a/drivers/iio/potentiometer/ds1803.c b/drivers/iio/potentiometer/ds1803.c
index d0de78232a93..5c061ab8f46c 100644
--- a/drivers/iio/potentiometer/ds1803.c
+++ b/drivers/iio/potentiometer/ds1803.c
@@ -126,7 +126,6 @@ static int ds1803_probe(struct i2c_client *client,
 	data->client = client;
 	data->cfg = &ds1803_cfg[id->driver_data];
 
-	indio_dev->dev.parent = dev;
 	indio_dev->info = &ds1803_info;
 	indio_dev->channels = ds1803_channels;
 	indio_dev->num_channels = ARRAY_SIZE(ds1803_channels);
diff --git a/drivers/iio/potentiometer/max5432.c b/drivers/iio/potentiometer/max5432.c
index 641b1821fdf6..280de9c54471 100644
--- a/drivers/iio/potentiometer/max5432.c
+++ b/drivers/iio/potentiometer/max5432.c
@@ -102,7 +102,6 @@ static int max5432_probe(struct i2c_client *client,
 	data->client = client;
 	data->ohm = (unsigned long)of_device_get_match_data(dev);
 
-	indio_dev->dev.parent = dev;
 	indio_dev->info = &max5432_info;
 	indio_dev->channels = max5432_channels;
 	indio_dev->num_channels = ARRAY_SIZE(max5432_channels);
diff --git a/drivers/iio/potentiometer/max5481.c b/drivers/iio/potentiometer/max5481.c
index 732375b6d131..e4cb947c1c32 100644
--- a/drivers/iio/potentiometer/max5481.c
+++ b/drivers/iio/potentiometer/max5481.c
@@ -149,7 +149,6 @@ static int max5481_probe(struct spi_device *spi)
 		data->cfg = &max5481_cfg[id->driver_data];
 
 	indio_dev->name = id->name;
-	indio_dev->dev.parent = &spi->dev;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 
 	/* variant specific configuration */
diff --git a/drivers/iio/potentiometer/max5487.c b/drivers/iio/potentiometer/max5487.c
index 68ff806d4668..7ec51976ec99 100644
--- a/drivers/iio/potentiometer/max5487.c
+++ b/drivers/iio/potentiometer/max5487.c
@@ -100,7 +100,6 @@ static int max5487_spi_probe(struct spi_device *spi)
 
 	indio_dev->info = &max5487_info;
 	indio_dev->name = id->name;
-	indio_dev->dev.parent = &spi->dev;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->channels = max5487_channels;
 	indio_dev->num_channels = ARRAY_SIZE(max5487_channels);
diff --git a/drivers/iio/potentiometer/mcp4018.c b/drivers/iio/potentiometer/mcp4018.c
index 62151b2a2b12..fd0579ad3c83 100644
--- a/drivers/iio/potentiometer/mcp4018.c
+++ b/drivers/iio/potentiometer/mcp4018.c
@@ -165,7 +165,6 @@ static int mcp4018_probe(struct i2c_client *client)
 	if (!data->cfg)
 		data->cfg = &mcp4018_cfg[i2c_match_id(mcp4018_id, client)->driver_data];
 
-	indio_dev->dev.parent = dev;
 	indio_dev->info = &mcp4018_info;
 	indio_dev->channels = &mcp4018_channel;
 	indio_dev->num_channels = 1;
diff --git a/drivers/iio/potentiometer/mcp41010.c b/drivers/iio/potentiometer/mcp41010.c
index 2368b39debf5..3c46ce4bc627 100644
--- a/drivers/iio/potentiometer/mcp41010.c
+++ b/drivers/iio/potentiometer/mcp41010.c
@@ -152,7 +152,6 @@ static int mcp41010_probe(struct spi_device *spi)
 
 	mutex_init(&data->lock);
 
-	indio_dev->dev.parent = dev;
 	indio_dev->info = &mcp41010_info;
 	indio_dev->channels = mcp41010_channels;
 	indio_dev->num_channels = data->cfg->wipers;
diff --git a/drivers/iio/potentiometer/mcp4131.c b/drivers/iio/potentiometer/mcp4131.c
index 98df91e97f2f..103df5e100f3 100644
--- a/drivers/iio/potentiometer/mcp4131.c
+++ b/drivers/iio/potentiometer/mcp4131.c
@@ -260,7 +260,6 @@ static int mcp4131_probe(struct spi_device *spi)
 
 	mutex_init(&data->lock);
 
-	indio_dev->dev.parent = dev;
 	indio_dev->info = &mcp4131_info;
 	indio_dev->channels = mcp4131_channels;
 	indio_dev->num_channels = data->cfg->wipers;
diff --git a/drivers/iio/potentiometer/mcp4531.c b/drivers/iio/potentiometer/mcp4531.c
index d71a22d71a30..95efc4b40514 100644
--- a/drivers/iio/potentiometer/mcp4531.c
+++ b/drivers/iio/potentiometer/mcp4531.c
@@ -375,7 +375,6 @@ static int mcp4531_probe(struct i2c_client *client)
 	if (!data->cfg)
 		data->cfg = &mcp4531_cfg[i2c_match_id(mcp4531_id, client)->driver_data];
 
-	indio_dev->dev.parent = dev;
 	indio_dev->info = &mcp4531_info;
 	indio_dev->channels = mcp4531_channels;
 	indio_dev->num_channels = data->cfg->wipers;
diff --git a/drivers/iio/potentiometer/tpl0102.c b/drivers/iio/potentiometer/tpl0102.c
index a0a07e47f13f..d996dc367fb7 100644
--- a/drivers/iio/potentiometer/tpl0102.c
+++ b/drivers/iio/potentiometer/tpl0102.c
@@ -140,7 +140,6 @@ static int tpl0102_probe(struct i2c_client *client,
 		return PTR_ERR(data->regmap);
 	}
 
-	indio_dev->dev.parent = dev;
 	indio_dev->info = &tpl0102_info;
 	indio_dev->channels = tpl0102_channels;
 	indio_dev->num_channels = data->cfg->wipers;