[PATCH v2 4/5] iio: health: afe4404: use regmap to retrieve struct device

[Alison Schofield]

Driver includes struct regmap and struct device in its global data.
Remove the struct device and use regmap API to retrieve device info.

Patch created using Coccinelle plus manual edits.

Signed-off-by: Alison Schofield <amsfield22 at gmail.com>
---
 drivers/iio/health/afe4404.c | 38 +++++++++++++++++++-------------------
 1 file changed, 19 insertions(+), 19 deletions(-)

diff --git a/drivers/iio/health/afe4404.c b/drivers/iio/health/afe4404.c
index 5096a46..9cd8590 100644
--- a/drivers/iio/health/afe4404.c
+++ b/drivers/iio/health/afe4404.c
@@ -107,14 +107,12 @@
 
 /**
  * struct afe4404_data
- * @dev - Device structure
  * @regmap - Register map of the device
  * @regulator - Pointer to the regulator for the IC
  * @trig - IIO trigger for this device
  * @irq - ADC_RDY line interrupt number
  */
 struct afe4404_data {
-	struct device *dev;
 	struct regmap *regmap;
 	struct regulator *regulator;
 	struct iio_trigger *trig;
@@ -534,54 +532,54 @@ static int afe4404_probe(struct i2c_client *client,
 	afe = iio_priv(indio_dev);
 	i2c_set_clientdata(client, indio_dev);
 
-	afe->dev = &client->dev;
 	afe->irq = client->irq;
 
 	afe->regmap = devm_regmap_init_i2c(client, &afe4404_regmap_config);
 	if (IS_ERR(afe->regmap)) {
-		dev_err(afe->dev, "Unable to allocate register map\n");
+		dev_err(&client->dev, "Unable to allocate register map\n");
 		return PTR_ERR(afe->regmap);
 	}
 
-	afe->regulator = devm_regulator_get(afe->dev, "tx_sup");
+	afe->regulator = devm_regulator_get(&client->dev, "tx_sup");
 	if (IS_ERR(afe->regulator)) {
-		dev_err(afe->dev, "Unable to get regulator\n");
+		dev_err(&client->dev, "Unable to get regulator\n");
 		return PTR_ERR(afe->regulator);
 	}
 	ret = regulator_enable(afe->regulator);
 	if (ret) {
-		dev_err(afe->dev, "Unable to enable regulator\n");
+		dev_err(&client->dev, "Unable to enable regulator\n");
 		return ret;
 	}
 
 	ret = regmap_write(afe->regmap, AFE440X_CONTROL0,
 			   AFE440X_CONTROL0_SW_RESET);
 	if (ret) {
-		dev_err(afe->dev, "Unable to reset device\n");
+		dev_err(&client->dev, "Unable to reset device\n");
 		goto disable_reg;
 	}
 
 	ret = regmap_multi_reg_write(afe->regmap, afe4404_reg_sequences,
 				     ARRAY_SIZE(afe4404_reg_sequences));
 	if (ret) {
-		dev_err(afe->dev, "Unable to set register defaults\n");
+		dev_err(&client->dev, "Unable to set register defaults\n");
 		goto disable_reg;
 	}
 
 	indio_dev->modes = INDIO_DIRECT_MODE;
-	indio_dev->dev.parent = afe->dev;
+	indio_dev->dev.parent = &client->dev;
 	indio_dev->channels = afe4404_channels;
 	indio_dev->num_channels = ARRAY_SIZE(afe4404_channels);
 	indio_dev->name = AFE4404_DRIVER_NAME;
 	indio_dev->info = &afe4404_iio_info;
 
 	if (afe->irq > 0) {
-		afe->trig = devm_iio_trigger_alloc(afe->dev,
+		afe->trig = devm_iio_trigger_alloc(&client->dev,
 						   "%s-dev%d",
 						   indio_dev->name,
 						   indio_dev->id);
 		if (!afe->trig) {
-			dev_err(afe->dev, "Unable to allocate IIO trigger\n");
+			dev_err(&client->dev,
+				"Unable to allocate IIO trigger\n");
 			ret = -ENOMEM;
 			goto disable_reg;
 		}
@@ -589,21 +587,22 @@ static int afe4404_probe(struct i2c_client *client,
 		iio_trigger_set_drvdata(afe->trig, indio_dev);
 
 		afe->trig->ops = &afe4404_trigger_ops;
-		afe->trig->dev.parent = afe->dev;
+		afe->trig->dev.parent = &client->dev;
 
 		ret = iio_trigger_register(afe->trig);
 		if (ret) {
-			dev_err(afe->dev, "Unable to register IIO trigger\n");
+			dev_err(&client->dev,
+				"Unable to register IIO trigger\n");
 			goto disable_reg;
 		}
 
-		ret = devm_request_threaded_irq(afe->dev, afe->irq,
+		ret = devm_request_threaded_irq(&client->dev, afe->irq,
 						iio_trigger_generic_data_rdy_poll,
 						NULL, IRQF_ONESHOT,
 						AFE4404_DRIVER_NAME,
 						afe->trig);
 		if (ret) {
-			dev_err(afe->dev, "Unable to request IRQ\n");
+			dev_err(&client->dev, "Unable to request IRQ\n");
 			goto disable_reg;
 		}
 	}
@@ -611,13 +610,13 @@ static int afe4404_probe(struct i2c_client *client,
 	ret = iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
 					 afe4404_trigger_handler, NULL);
 	if (ret) {
-		dev_err(afe->dev, "Unable to setup buffer\n");
+		dev_err(&client->dev, "Unable to setup buffer\n");
 		goto unregister_trigger;
 	}
 
 	ret = iio_device_register(indio_dev);
 	if (ret) {
-		dev_err(afe->dev, "Unable to register IIO device\n");
+		dev_err(&client->dev, "Unable to register IIO device\n");
 		goto unregister_triggered_buffer;
 	}
 
@@ -638,6 +637,7 @@ static int afe4404_remove(struct i2c_client *client)
 {
 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
 	struct afe4404_data *afe = iio_priv(indio_dev);
+	struct device *dev = regmap_get_device(afe->regmap);
 	int ret;
 
 	iio_device_unregister(indio_dev);
@@ -649,7 +649,7 @@ static int afe4404_remove(struct i2c_client *client)
 
 	ret = regulator_disable(afe->regulator);
 	if (ret) {
-		dev_err(afe->dev, "Unable to disable regulator\n");
+		dev_err(dev, "Unable to disable regulator\n");
 		return ret;
 	}
 
-- 
2.1.4