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>

34 files changed, 0 insertions, 38 deletions

diff --git a/drivers/iio/dac/ad5064.c b/drivers/iio/dac/ad5064.c
index d33642de9720..db36365dc04c 100644
--- a/drivers/iio/dac/ad5064.c
+++ b/drivers/iio/dac/ad5064.c
@@ -874,7 +874,6 @@ static int ad5064_probe(struct device *dev, enum ad5064_type type,
 			return ret;
 	}
 
-	indio_dev->dev.parent = dev;
 	indio_dev->name = name;
 	indio_dev->info = &ad5064_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
diff --git a/drivers/iio/dac/ad5360.c b/drivers/iio/dac/ad5360.c
index 3e0c9e84e8da..f5d19d158d1c 100644
--- a/drivers/iio/dac/ad5360.c
+++ b/drivers/iio/dac/ad5360.c
@@ -476,7 +476,6 @@ static int ad5360_probe(struct spi_device *spi)
 	st->chip_info = &ad5360_chip_info_tbl[type];
 	st->spi = spi;
 
-	indio_dev->dev.parent = &spi->dev;
 	indio_dev->name = spi_get_device_id(spi)->name;
 	indio_dev->info = &ad5360_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
diff --git a/drivers/iio/dac/ad5380.c b/drivers/iio/dac/ad5380.c
index 04c74cc1a4ec..224ffc466ed1 100644
--- a/drivers/iio/dac/ad5380.c
+++ b/drivers/iio/dac/ad5380.c
@@ -386,7 +386,6 @@ static int ad5380_probe(struct device *dev, struct regmap *regmap,
 	st->chip_info = &ad5380_chip_info_tbl[type];
 	st->regmap = regmap;
 
-	indio_dev->dev.parent = dev;
 	indio_dev->name = name;
 	indio_dev->info = &ad5380_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
diff --git a/drivers/iio/dac/ad5421.c b/drivers/iio/dac/ad5421.c
index fec27764cea8..4158c810de9b 100644
--- a/drivers/iio/dac/ad5421.c
+++ b/drivers/iio/dac/ad5421.c
@@ -487,7 +487,6 @@ static int ad5421_probe(struct spi_device *spi)
 
 	st->spi = spi;
 
-	indio_dev->dev.parent = &spi->dev;
 	indio_dev->name = "ad5421";
 	indio_dev->info = &ad5421_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
diff --git a/drivers/iio/dac/ad5446.c b/drivers/iio/dac/ad5446.c
index 8f8afc8999bc..e01ba90dc106 100644
--- a/drivers/iio/dac/ad5446.c
+++ b/drivers/iio/dac/ad5446.c
@@ -251,7 +251,6 @@ static int ad5446_probe(struct device *dev, const char *name,
 	st->dev = dev;
 
 	/* Establish that the iio_dev is a child of the device */
-	indio_dev->dev.parent = dev;
 	indio_dev->name = name;
 	indio_dev->info = &ad5446_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
diff --git a/drivers/iio/dac/ad5449.c b/drivers/iio/dac/ad5449.c
index d739b10e5236..447ba9f550d8 100644
--- a/drivers/iio/dac/ad5449.c
+++ b/drivers/iio/dac/ad5449.c
@@ -297,7 +297,6 @@ static int ad5449_spi_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-	indio_dev->dev.parent = &spi->dev;
 	indio_dev->name = id->name;
 	indio_dev->info = &ad5449_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
diff --git a/drivers/iio/dac/ad5504.c b/drivers/iio/dac/ad5504.c
index c64e6898ff20..6f18ac2c20fa 100644
--- a/drivers/iio/dac/ad5504.c
+++ b/drivers/iio/dac/ad5504.c
@@ -304,7 +304,6 @@ static int ad5504_probe(struct spi_device *spi)
 
 	st->reg = reg;
 	st->spi = spi;
-	indio_dev->dev.parent = &spi->dev;
 	indio_dev->name = spi_get_device_id(st->spi)->name;
 	indio_dev->info = &ad5504_info;
 	if (spi_get_device_id(st->spi)->driver_data == ID_AD5501)
diff --git a/drivers/iio/dac/ad5592r-base.c b/drivers/iio/dac/ad5592r-base.c
index 49daf0eee4e4..5c4e5ff70380 100644
--- a/drivers/iio/dac/ad5592r-base.c
+++ b/drivers/iio/dac/ad5592r-base.c
@@ -618,7 +618,6 @@ int ad5592r_probe(struct device *dev, const char *name,
 			return ret;
 	}
 
-	iio_dev->dev.parent = dev;
 	iio_dev->name = name;
 	iio_dev->info = &ad5592r_info;
 	iio_dev->modes = INDIO_DIRECT_MODE;
diff --git a/drivers/iio/dac/ad5624r_spi.c b/drivers/iio/dac/ad5624r_spi.c
index 2015a5df840c..2b2b8edfd258 100644
--- a/drivers/iio/dac/ad5624r_spi.c
+++ b/drivers/iio/dac/ad5624r_spi.c
@@ -253,7 +253,6 @@ static int ad5624r_probe(struct spi_device *spi)
 
 	st->us = spi;
 
-	indio_dev->dev.parent = &spi->dev;
 	indio_dev->name = spi_get_device_id(spi)->name;
 	indio_dev->info = &ad5624r_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
diff --git a/drivers/iio/dac/ad5686.c b/drivers/iio/dac/ad5686.c
index 8dd67da0a7da..56cf9344d187 100644
--- a/drivers/iio/dac/ad5686.c
+++ b/drivers/iio/dac/ad5686.c
@@ -461,7 +461,6 @@ int ad5686_probe(struct device *dev,
 	for (i = 0; i < st->chip_info->num_channels; i++)
 		st->pwr_down_mode |= (0x01 << (i * 2));
 
-	indio_dev->dev.parent = dev;
 	indio_dev->name = name;
 	indio_dev->info = &ad5686_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
diff --git a/drivers/iio/dac/ad5755.c b/drivers/iio/dac/ad5755.c
index 7723bd313fc6..c8d9c698283d 100644
--- a/drivers/iio/dac/ad5755.c
+++ b/drivers/iio/dac/ad5755.c
@@ -744,7 +744,6 @@ static int ad5755_probe(struct spi_device *spi)
 	st->spi = spi;
 	st->pwr_down = 0xf;
 
-	indio_dev->dev.parent = &spi->dev;
 	indio_dev->name = spi_get_device_id(spi)->name;
 	indio_dev->info = &ad5755_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
diff --git a/drivers/iio/dac/ad5758.c b/drivers/iio/dac/ad5758.c
index 475646c82b40..86649149a3b0 100644
--- a/drivers/iio/dac/ad5758.c
+++ b/drivers/iio/dac/ad5758.c
@@ -854,7 +854,6 @@ static int ad5758_probe(struct spi_device *spi)
 
 	mutex_init(&st->lock);
 
-	indio_dev->dev.parent = &spi->dev;
 	indio_dev->name = spi_get_device_id(spi)->name;
 	indio_dev->info = &ad5758_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
diff --git a/drivers/iio/dac/ad5761.c b/drivers/iio/dac/ad5761.c
index 67c4fa75c6f1..89fa5869b4bf 100644
--- a/drivers/iio/dac/ad5761.c
+++ b/drivers/iio/dac/ad5761.c
@@ -376,7 +376,6 @@ static int ad5761_probe(struct spi_device *spi)
 	if (ret)
 		goto disable_regulator_err;
 
-	iio_dev->dev.parent = &spi->dev;
 	iio_dev->info = &ad5761_info;
 	iio_dev->modes = INDIO_DIRECT_MODE;
 	iio_dev->channels = &chip_info->channel;
diff --git a/drivers/iio/dac/ad5764.c b/drivers/iio/dac/ad5764.c
index 5b0f0fe354f6..53e756e59e60 100644
--- a/drivers/iio/dac/ad5764.c
+++ b/drivers/iio/dac/ad5764.c
@@ -290,7 +290,6 @@ static int ad5764_probe(struct spi_device *spi)
 	st->spi = spi;
 	st->chip_info = &ad5764_chip_infos[type];
 
-	indio_dev->dev.parent = &spi->dev;
 	indio_dev->name = spi_get_device_id(spi)->name;
 	indio_dev->info = &ad5764_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
diff --git a/drivers/iio/dac/ad5791.c b/drivers/iio/dac/ad5791.c
index 1d11f39ed047..60aa16128a8f 100644
--- a/drivers/iio/dac/ad5791.c
+++ b/drivers/iio/dac/ad5791.c
@@ -409,7 +409,6 @@ static int ad5791_probe(struct spi_device *spi)
 		goto error_disable_reg_neg;
 
 	spi_set_drvdata(spi, indio_dev);
-	indio_dev->dev.parent = &spi->dev;
 	indio_dev->info = &ad5791_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->channels
diff --git a/drivers/iio/dac/ad7303.c b/drivers/iio/dac/ad7303.c
index 15af8a1cce3e..4460aa57a33f 100644
--- a/drivers/iio/dac/ad7303.c
+++ b/drivers/iio/dac/ad7303.c
@@ -238,7 +238,6 @@ static int ad7303_probe(struct spi_device *spi)
 		st->config |= AD7303_CFG_EXTERNAL_VREF;
 	}
 
-	indio_dev->dev.parent = &spi->dev;
 	indio_dev->name = id->name;
 	indio_dev->info = &ad7303_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
diff --git a/drivers/iio/dac/ad8801.c b/drivers/iio/dac/ad8801.c
index 0789c9100a8f..6354b7c8f052 100644
--- a/drivers/iio/dac/ad8801.c
+++ b/drivers/iio/dac/ad8801.c
@@ -171,7 +171,6 @@ static int ad8801_probe(struct spi_device *spi)
 	}
 
 	spi_set_drvdata(spi, indio_dev);
-	indio_dev->dev.parent = &spi->dev;
 	indio_dev->info = &ad8801_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->channels = ad8801_channels;
diff --git a/drivers/iio/dac/cio-dac.c b/drivers/iio/dac/cio-dac.c
index 81677795e57a..95813569f394 100644
--- a/drivers/iio/dac/cio-dac.c
+++ b/drivers/iio/dac/cio-dac.c
@@ -110,7 +110,6 @@ static int cio_dac_probe(struct device *dev, unsigned int id)
 	indio_dev->channels = cio_dac_channels;
 	indio_dev->num_channels = CIO_DAC_NUM_CHAN;
 	indio_dev->name = dev_name(dev);
-	indio_dev->dev.parent = dev;
 
 	priv = iio_priv(indio_dev);
 	priv->base = base[id];
diff --git a/drivers/iio/dac/dpot-dac.c b/drivers/iio/dac/dpot-dac.c
index 4a6111b7e86c..b3835fb6b862 100644
--- a/drivers/iio/dac/dpot-dac.c
+++ b/drivers/iio/dac/dpot-dac.c
@@ -177,7 +177,6 @@ static int dpot_dac_probe(struct platform_device *pdev)
 	dac = iio_priv(indio_dev);
 
 	indio_dev->name = dev_name(dev);
-	indio_dev->dev.parent = dev;
 	indio_dev->info = &dpot_dac_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->channels = &dpot_dac_iio_channel;
diff --git a/drivers/iio/dac/ds4424.c b/drivers/iio/dac/ds4424.c
index 26d206681472..86eec0df1174 100644
--- a/drivers/iio/dac/ds4424.c
+++ b/drivers/iio/dac/ds4424.c
@@ -231,7 +231,6 @@ static int ds4424_probe(struct i2c_client *client,
 	data->client = client;
 	indio_dev->name = id->name;
 	indio_dev->dev.of_node = client->dev.of_node;
-	indio_dev->dev.parent = &client->dev;
 
 	data->vcc_reg = devm_regulator_get(&client->dev, "vcc");
 	if (IS_ERR(data->vcc_reg)) {
diff --git a/drivers/iio/dac/lpc18xx_dac.c b/drivers/iio/dac/lpc18xx_dac.c
index 0ab357bd3633..9e38607a189e 100644
--- a/drivers/iio/dac/lpc18xx_dac.c
+++ b/drivers/iio/dac/lpc18xx_dac.c
@@ -133,7 +133,6 @@ static int lpc18xx_dac_probe(struct platform_device *pdev)
 	}
 
 	indio_dev->name = dev_name(&pdev->dev);
-	indio_dev->dev.parent = &pdev->dev;
 	indio_dev->info = &lpc18xx_dac_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->channels = lpc18xx_dac_iio_channels;
diff --git a/drivers/iio/dac/ltc1660.c b/drivers/iio/dac/ltc1660.c
index 10866838c72a..dc10188540ca 100644
--- a/drivers/iio/dac/ltc1660.c
+++ b/drivers/iio/dac/ltc1660.c
@@ -186,7 +186,6 @@ static int ltc1660_probe(struct spi_device *spi)
 
 	priv->spi = spi;
 	spi_set_drvdata(spi, indio_dev);
-	indio_dev->dev.parent = &spi->dev;
 	indio_dev->info = &ltc1660_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->channels = ltc1660_channels[id->driver_data];
diff --git a/drivers/iio/dac/ltc2632.c b/drivers/iio/dac/ltc2632.c
index f891311f05cf..06bfaaa00da6 100644
--- a/drivers/iio/dac/ltc2632.c
+++ b/drivers/iio/dac/ltc2632.c
@@ -362,7 +362,6 @@ static int ltc2632_probe(struct spi_device *spi)
 		}
 	}
 
-	indio_dev->dev.parent = &spi->dev;
 	indio_dev->name = dev_of_node(&spi->dev) ? dev_of_node(&spi->dev)->name
 						 : spi_get_device_id(spi)->name;
 	indio_dev->info = &ltc2632_info;
diff --git a/drivers/iio/dac/m62332.c b/drivers/iio/dac/m62332.c
index 3205ca98c32d..225b1a374dc1 100644
--- a/drivers/iio/dac/m62332.c
+++ b/drivers/iio/dac/m62332.c
@@ -204,9 +204,6 @@ static int m62332_probe(struct i2c_client *client,
 	if (IS_ERR(data->vcc))
 		return PTR_ERR(data->vcc);
 
-	/* establish that the iio_dev is a child of the i2c device */
-	indio_dev->dev.parent = &client->dev;
-
 	indio_dev->num_channels = ARRAY_SIZE(m62332_channels);
 	indio_dev->channels = m62332_channels;
 	indio_dev->modes = INDIO_DIRECT_MODE;
diff --git a/drivers/iio/dac/max517.c b/drivers/iio/dac/max517.c
index 7e01838ef4d0..daa60386bf0c 100644
--- a/drivers/iio/dac/max517.c
+++ b/drivers/iio/dac/max517.c
@@ -156,9 +156,6 @@ static int max517_probe(struct i2c_client *client,
 	i2c_set_clientdata(client, indio_dev);
 	data->client = client;
 
-	/* establish that the iio_dev is a child of the i2c device */
-	indio_dev->dev.parent = &client->dev;
-
 	switch (id->driver_data) {
 	case ID_MAX521:
 		indio_dev->num_channels = 8;
diff --git a/drivers/iio/dac/max5821.c b/drivers/iio/dac/max5821.c
index 2da086e372af..d6bb24db49c4 100644
--- a/drivers/iio/dac/max5821.c
+++ b/drivers/iio/dac/max5821.c
@@ -341,7 +341,6 @@ static int max5821_probe(struct i2c_client *client,
 	data->vref_mv = ret / 1000;
 
 	indio_dev->name = id->name;
-	indio_dev->dev.parent = &client->dev;
 	indio_dev->num_channels = ARRAY_SIZE(max5821_channels);
 	indio_dev->channels = max5821_channels;
 	indio_dev->modes = INDIO_DIRECT_MODE;
diff --git a/drivers/iio/dac/mcp4725.c b/drivers/iio/dac/mcp4725.c
index ed455e801e80..ee174d224110 100644
--- a/drivers/iio/dac/mcp4725.c
+++ b/drivers/iio/dac/mcp4725.c
@@ -453,7 +453,6 @@ static int mcp4725_probe(struct i2c_client *client,
 			goto err_disable_vdd_reg;
 	}
 
-	indio_dev->dev.parent = &client->dev;
 	indio_dev->name = id->name;
 	indio_dev->info = &mcp4725_info;
 	indio_dev->channels = &mcp472x_channel[id->driver_data];
diff --git a/drivers/iio/dac/mcp4922.c b/drivers/iio/dac/mcp4922.c
index f9194b3ddc9c..c4e430b4050e 100644
--- a/drivers/iio/dac/mcp4922.c
+++ b/drivers/iio/dac/mcp4922.c
@@ -152,7 +152,6 @@ static int mcp4922_probe(struct spi_device *spi)
 
 	spi_set_drvdata(spi, indio_dev);
 	id = spi_get_device_id(spi);
-	indio_dev->dev.parent = &spi->dev;
 	indio_dev->info = &mcp4922_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->channels = mcp4922_channels[id->driver_data];
diff --git a/drivers/iio/dac/stm32-dac.c b/drivers/iio/dac/stm32-dac.c
index f22c1d9129b2..092c796fa3d9 100644
--- a/drivers/iio/dac/stm32-dac.c
+++ b/drivers/iio/dac/stm32-dac.c
@@ -323,7 +323,6 @@ static int stm32_dac_probe(struct platform_device *pdev)
 	dac = iio_priv(indio_dev);
 	dac->common = dev_get_drvdata(pdev->dev.parent);
 	indio_dev->name = dev_name(&pdev->dev);
-	indio_dev->dev.parent = &pdev->dev;
 	indio_dev->dev.of_node = pdev->dev.of_node;
 	indio_dev->info = &stm32_dac_iio_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
diff --git a/drivers/iio/dac/ti-dac082s085.c b/drivers/iio/dac/ti-dac082s085.c
index 57b498d2a2a5..24e5833860f2 100644
--- a/drivers/iio/dac/ti-dac082s085.c
+++ b/drivers/iio/dac/ti-dac082s085.c
@@ -268,7 +268,6 @@ static int ti_dac_probe(struct spi_device *spi)
 	if (!indio_dev)
 		return -ENOMEM;
 
-	indio_dev->dev.parent = dev;
 	indio_dev->info = &ti_dac_info;
 	indio_dev->name = spi->modalias;
 	indio_dev->modes = INDIO_DIRECT_MODE;
diff --git a/drivers/iio/dac/ti-dac5571.c b/drivers/iio/dac/ti-dac5571.c
index 3a2bb0efe50d..502552716e1e 100644
--- a/drivers/iio/dac/ti-dac5571.c
+++ b/drivers/iio/dac/ti-dac5571.c
@@ -321,7 +321,6 @@ static int dac5571_probe(struct i2c_client *client,
 	i2c_set_clientdata(client, indio_dev);
 	data->client = client;
 
-	indio_dev->dev.parent = dev;
 	indio_dev->dev.of_node = client->dev.of_node;
 	indio_dev->info = &dac5571_info;
 	indio_dev->name = id->name;
diff --git a/drivers/iio/dac/ti-dac7311.c b/drivers/iio/dac/ti-dac7311.c
index 6f5df1a30a1c..d20cee33daba 100644
--- a/drivers/iio/dac/ti-dac7311.c
+++ b/drivers/iio/dac/ti-dac7311.c
@@ -251,7 +251,6 @@ static int ti_dac_probe(struct spi_device *spi)
 	spi->bits_per_word = 16;
 	spi_setup(spi);
 
-	indio_dev->dev.parent = dev;
 	indio_dev->dev.of_node = spi->dev.of_node;
 	indio_dev->info = &ti_dac_info;
 	indio_dev->name = spi_get_device_id(spi)->name;
diff --git a/drivers/iio/dac/ti-dac7612.c b/drivers/iio/dac/ti-dac7612.c
index de0c6573cd97..07c9f39d54f1 100644
--- a/drivers/iio/dac/ti-dac7612.c
+++ b/drivers/iio/dac/ti-dac7612.c
@@ -139,7 +139,6 @@ static int dac7612_probe(struct spi_device *spi)
 		return PTR_ERR(priv->loaddacs);
 	priv->spi = spi;
 	spi_set_drvdata(spi, iio_dev);
-	iio_dev->dev.parent = &spi->dev;
 	iio_dev->info = &dac7612_info;
 	iio_dev->modes = INDIO_DIRECT_MODE;
 	iio_dev->channels = dac7612_channels;
diff --git a/drivers/iio/dac/vf610_dac.c b/drivers/iio/dac/vf610_dac.c
index 9417a4a3e22a..3787582d5340 100644
--- a/drivers/iio/dac/vf610_dac.c
+++ b/drivers/iio/dac/vf610_dac.c
@@ -199,7 +199,6 @@ static int vf610_dac_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, indio_dev);
 
 	indio_dev->name = dev_name(&pdev->dev);
-	indio_dev->dev.parent = &pdev->dev;
 	indio_dev->dev.of_node = pdev->dev.of_node;
 	indio_dev->info = &vf610_dac_iio_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;