iommu/msm: Use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.
Signed-off-by: NKiran Padwal <kiran.padwal@smartplayin.com>
Signed-off-by: NJoerg Roedel <jroedel@suse.de>

drivers/iommu/msm_iommu_dev.c

@@ -131,7 +131,7 @@ static int msm_iommu_probe(struct platform_device *pdev)
 	struct clk *iommu_clk;
 	struct clk *iommu_pclk;
 	struct msm_iommu_drvdata *drvdata;
-	struct msm_iommu_dev *iommu_dev = pdev->dev.platform_data;
+	struct msm_iommu_dev *iommu_dev = dev_get_platdata(&pdev->dev);
 	void __iomem *regs_base;
 	int ret, irq, par;
 
@@ -263,7 +263,7 @@ static int msm_iommu_remove(struct platform_device *pdev)
 
 static int msm_iommu_ctx_probe(struct platform_device *pdev)
 {
-	struct msm_iommu_ctx_dev *c = pdev->dev.platform_data;
+	struct msm_iommu_ctx_dev *c = dev_get_platdata(&pdev->dev);
 	struct msm_iommu_drvdata *drvdata;
 	struct msm_iommu_ctx_drvdata *ctx_drvdata;
 	int i, ret;