regulator: Add a pointer to aat2870_data in struct aat2870_regulator

The reason we add *pdev in struct aat2870_regulator is to use it to get a pointer to struct aat2870_data.
Save a pointer to struct aat2870_data instead of pdev in struct aat2870_regulator, this change makes the intention more clear.

Signed-off-by Axel Lin<[email protected]>

---
  drivers/regulator/aat2870-regulator.c |   14 +++++++-------
  1 files changed, 7 insertions(+), 7 deletions(-)

drivers/regulator/aat2870-regulator.c +7 -7

index 685ad43..9ed5c5d 100644
@@ -31,7 +31,7 @@
  #include<linux/mfd/aat2870.h>
 
  struct aat2870_regulator {
-	struct platform_device *pdev;
+	struct aat2870_data *aat2870;
  	struct regulator_desc desc;
 
  	const int *voltages; /* uV */

@@ -60,7 +60,7 @@ static int aat2870_ldo_set_voltage_sel(struct regulator_dev *rdev,
  				       unsigned selector)
  {
  	struct aat2870_regulator *ri = rdev_get_drvdata(rdev);
-	struct aat2870_data *aat2870 = dev_get_drvdata(ri->pdev->dev.parent);
+	struct aat2870_data *aat2870 = ri->aat2870;
 
  	return aat2870->update(aat2870, ri->voltage_addr, ri->voltage_mask,
  			       selector<<  ri->voltage_shift);

@@ -69,7 +69,7 @@ static int aat2870_ldo_set_voltage_sel(struct regulator_dev *rdev,
  static int aat2870_ldo_get_voltage_sel(struct regulator_dev *rdev)
  {
  	struct aat2870_regulator *ri = rdev_get_drvdata(rdev);
-	struct aat2870_data *aat2870 = dev_get_drvdata(ri->pdev->dev.parent);
+	struct aat2870_data *aat2870 = ri->aat2870;
  	u8 val;
  	int ret;
 

@@ -83,7 +83,7 @@ static int aat2870_ldo_get_voltage_sel(struct regulator_dev *rdev)
  static int aat2870_ldo_enable(struct regulator_dev *rdev)
  {
  	struct aat2870_regulator *ri = rdev_get_drvdata(rdev);
-	struct aat2870_data *aat2870 = dev_get_drvdata(ri->pdev->dev.parent);
+	struct aat2870_data *aat2870 = ri->aat2870;
 
  	return aat2870->update(aat2870, ri->enable_addr, ri->enable_mask,
  			       ri->enable_mask);

@@ -92,7 +92,7 @@ static int aat2870_ldo_enable(struct regulator_dev *rdev)
  static int aat2870_ldo_disable(struct regulator_dev *rdev)
  {
  	struct aat2870_regulator *ri = rdev_get_drvdata(rdev);
-	struct aat2870_data *aat2870 = dev_get_drvdata(ri->pdev->dev.parent);
+	struct aat2870_data *aat2870 = ri->aat2870;
 
  	return aat2870->update(aat2870, ri->enable_addr, ri->enable_mask, 0);
  }

@@ -100,7 +100,7 @@ static int aat2870_ldo_disable(struct regulator_dev *rdev)
  static int aat2870_ldo_is_enabled(struct regulator_dev *rdev)
  {
  	struct aat2870_regulator *ri = rdev_get_drvdata(rdev);
-	struct aat2870_data *aat2870 = dev_get_drvdata(ri->pdev->dev.parent);
+	struct aat2870_data *aat2870 = ri->aat2870;
  	u8 val;
  	int ret;
 

@@ -185,7 +185,7 @@ static int aat2870_regulator_probe(struct platform_device *pdev)
  		dev_err(&pdev->dev, "Invalid device ID, %d\n", pdev->id);
  		return -EINVAL;
  	}
-	ri->pdev = pdev;
+	ri->aat2870 = dev_get_drvdata(pdev->dev.parent);
 
  	rdev = regulator_register(&ri->desc,&pdev->dev,
  				  pdev->dev.platform_data, ri, NULL);

The reason we add *pdev in struct aat2870_regulator is to use it to get a pointer to struct aat2870_data.
Save a pointer to struct aat2870_data instead of pdev in struct aat2870_regulator, this change makes the intention more clear.