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>

3 files changed, 0 insertions, 3 deletions

diff --git a/drivers/iio/frequency/ad9523.c b/drivers/iio/frequency/ad9523.c
index a7322184cbdd..334e1d779d6d 100644
--- a/drivers/iio/frequency/ad9523.c
+++ b/drivers/iio/frequency/ad9523.c
@@ -1026,7 +1026,6 @@ static int ad9523_probe(struct spi_device *spi)
 	st->spi = spi;
 	st->pdata = pdata;
 
-	indio_dev->dev.parent = &spi->dev;
 	indio_dev->name = (pdata->name[0] != 0) ? pdata->name :
 			  spi_get_device_id(spi)->name;
 	indio_dev->info = &ad9523_info;
diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c
index 1c2dc9b00f31..409c9c47161e 100644
--- a/drivers/iio/frequency/adf4350.c
+++ b/drivers/iio/frequency/adf4350.c
@@ -531,7 +531,6 @@ static int adf4350_probe(struct spi_device *spi)
 	st->spi = spi;
 	st->pdata = pdata;
 
-	indio_dev->dev.parent = &spi->dev;
 	indio_dev->name = (pdata->name[0] != 0) ? pdata->name :
 		spi_get_device_id(spi)->name;
 
diff --git a/drivers/iio/frequency/adf4371.c b/drivers/iio/frequency/adf4371.c
index ff82863cbf42..ecd5e18995ad 100644
--- a/drivers/iio/frequency/adf4371.c
+++ b/drivers/iio/frequency/adf4371.c
@@ -573,7 +573,6 @@ static int adf4371_probe(struct spi_device *spi)
 	mutex_init(&st->lock);
 
 	st->chip_info = &adf4371_chip_info[id->driver_data];
-	indio_dev->dev.parent = &spi->dev;
 	indio_dev->name = id->name;
 	indio_dev->info = &adf4371_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;